Product
Data
48FJ,FK,JJ,JK
Single Package Rooftop Units
Electric Cooling/Gas Heating
30 to 75 Nominal Tons
Single-Package Rooftop Products
Designed to Meet Commercial and
Industrial Application Requirements
• constant volume (CV)
• variable air volume (VAV)
• extended length chassis
Features/Benefits
Reliable, economical
rooftops combine design
flexibility with efficient performance and easy
maintenance.
Design flexibility
Carrier rooftop units are designed to
meet all customer requirements for
new construction, replacement jobs or
special applications. Units are available for constant volume or variable air volume applications. Features
which promote IAQ (indoor-air quality) include Tuf-Skin™ insulation
with an EPA (Environmental Protection Agency) registered anti-microbial
coating, sloped condensate pans,
and economizer options which introduce fresh air into the building. Filtration choices include standard 2-in.
disposable filters, 30% efficient
pleated filters, and 90% efficient bag
filters with prefilters.
Unit efficiency
Dual serviceable, semi-hermetic compressors on intertwined evaporator
coils ensure optimum unloading capabilities as well as excellent full and
part load efficiency. Dual refrigerant
circuits provide independent circuit
capability and superior part load
performance. Reliable Carlyle 06D
and 06E compressors are proven
performers.
Copyright 1998 Carrier Corporation
Form 48F,J-1PD
Variable air volume units have a
minimum of 4 stages of unloading.
Constant volumes have a minimum of
2 stages of capacity with field installed accessory unloaders available to
provide 4-stage operation. A factoryinstalled hot gas bypass option prevents short cycling of the lead
compressor at low load conditions by
providing a modulated offsetting
evaporator load at low coil load
conditions.
The low rpm single supply fan
design reduces noise and vibration.
The straight through air path reduces
internal losses and brake horsepower
requirements.
The supply fan sled is equipped
with spring vibration isolators with
2-in. deflection.
The refrigerant circuits on all units
are designed to operate efficiently
at outdoor air temperatures down
to 45 F. With the addition of the
Motormastert head pressure control
accessory, the unit will operate at outdoor air temperatures down to
−20 F. The Motormaster accessory
includes a condenser motor speed
controller and compatible condenser
fan motor. The condenser fan motor rpm is controlled by the condensing temperature to ensure reliable,
trouble-free operation.
Optional integrated economizer permits free cooling and uses solid-state
enthalpy control.
Low leak dampers are standard on
the economizer option. The economizer operates in conjunction with
mechanical cooling when required.
Accessory field-installed differential
enthalpy sensor is available for greater
savings. The differential enthalpy
sensor allows unit control to compare
the enthalpy of return air and outside air to determine which is more
economical to use for enhanced energy
savings.
Factory-installed rainhood/filter
assembly prevents moisture or objects
from entering the unit. Units without economizer have manual outdoor
air damper that allows intake of up
to 25% of nominal cfm.
Exhaust air relief is available for
economizer units:
• barometric relief (CV or VAV)
• non-modulating power exhaust (CV)
• 100% modulating power exhaust
(CV or VAV)
2
Using field-adjustable set points, the
modulating power exhaust relieves
up to 100% of nominal cfm and prevents space pressurization problems.
Two supply fan duct pressure
control options are available on VAV
models: Inlet guide vanes (IGV) and
variable frequency (inverter) drive
(VFD). Both options control supply
fan airflow to maintain a userestablished duct pressure set point in
the unit’s supply duct. The IGVs
are controlled by a differential pressure switch. All associated controls are
factory-installed. The VFD output is
controlled by a differential pressure
transducer. All associated controls and
wiring are also factory-installed.
All units incorporate a sloped condensate drain pan, to prevent standing
water from accumulating inside the
rooftop air conditioning unit. The
condensate pan contains a factoryinstalled nonferrous condensate drain
connection.
Interior cabinet surfaces (except in
the heating section) are insulated
with a flexible fire-retardant
dual-density fiberglass blanket, coated
on the air side. The coating contains an EPA-registered immobilized
anti-microbial agent to effectively
resist the growth of bacteria and fungi.
Chassis arrangements
Standard length chassis with vertical discharge (48FJ,FK Units)
— The standard, compact, vertical discharge arrangement is provided
with a bottom, return-air opening,
straight-through air path, and horizontal discharge into the heating section
with bottom supply air outlet.
Ductwork is attached to accessory
roof curb. These units are available
with factory-installed optional (or fieldinstalled accessory) power exhaust or
barometric relief packages in conjunction with factory-installed optional
economizers.
Extended length chassis with vertical discharge (48JJ,JK Units)
— The extended length chassis
arrangement provides an additional
25-in. (640 mm) of unit length located
between the evaporator coil section
and the supply fan sled. This compartment is used for field-installation of
an auxiliary coil. The auxiliary coil can
be a hydronic heating coil, a steam
heating coil, or a refrigeration heat
reclaim coil. The extended length
compartment includes tracks to accept
the field-supplied and -installed auxiliary coil.
COIL
COMPARTMENT
Installation/Serviceability
All man-size access panels are hinged
for easy access to serviceable components. No fasteners need to be
removed, which reduces servicing time
and prevents roof leaks caused by
discarded screws puncturing the roof.
The virtually square duct aspect
ratio makes duct fabricating, handling
and rigging easy. Ducts attach directly to the NRCA (National Roofing
Contractors Association) roof curb
to allow all ductwork to be completed
before the unit is positioned.
Single point electrical and gas connections are standard on all units.
Electrical and gas service access can
be made through roof curb or side
of unit.
A factory-installed Non-Fused Disconnect (NFD) option is available
to simplify unit installation and improve unit serviceability. The NFD
option is sized to accommodate the
largest motor option and an accessory
power exhaust option (if available).
The location of the NFD beneath the
entry to the main control box simplifies field power supply routing into
the unit. The NFD incorporates an
access panel interlock feature, ensuring that all power to the unit will
be disconnected before a service person opens the control box.
Features/benefits (cont)
The compressors are equipped with
suction and discharge service valves.
To ensure a successful start-up,
every rooftop unit is factory run tested
in both heating and cooling modes.
Units are built for use with natural
gas. An ETL and ETL, Canada listed
LP (Liquid Propane) gas conversion
accessory package is available for field
installation.
Unit controls
Constant volume units (Model 48FJ,JJ)
utilize a solid-state relay board that
interfaces with any 2-stage heat/
2-stage cool thermostat. Economizer
units utilize a mixed air thermistor
with a field-adjustable set point.
On variable air volume units (Model
48FK,JK) a self-diagnostic microprocessor controls the leaving air temperature. The microprocessor also
monitors stages of cooling, initiates
and controls morning warm-up cycle
SPRING ISOLATION
and unit safety controls. At start-up,
the self-diagnostic test verifies component operation and calibration. Fault
codes reduce service troubleshooting time and difficulty.
Accessory space temperature reset
(VAV only) prevents overcooling the
space and maintains higher airflow to
ensure adequate ventilation air to
the space. It automatically resets the
discharge air temperature up when
space temperature reaches the field
adjustable set point. Discharge air
temperature resets up approximately
3.3° F for every degree below set
point in the space. See the Temperature Reset Installation Instructions
for more information.
Unit design is ETL and ETL, Canada
listed for compliance with UL standard 1995.
When installed with the power
exhaust option and field-supplied
HINGED ACCESS DOORS
switches and wiring, units can be set
to run in the Pressurization mode
or the Smoke Purge mode. In the event
of a fire or smoke condition, a zone
can be pressurized to prevent smoke
from entering the zone, or smoke can
be exhausted from a zone. On CV
units, a set of terminals is provided for
a switch or relay which can disable
the unit; all other connections must be
made directly to the appropriate device. On the VAV units, terminals are
provided for most of the necessary
connections. Refer to pages 46-50 for
smoke control recommendations and
wiring information.
Terminals are provided (48FJ) for a
field-installed 115-v convenience outlet
to be used during servicing when unit
is not operating. Terminals can also
be used to power field-installed smoke
detectors.
DUAL COMPRESSORS
Table of contents
Page
Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10
Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11,12
Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-18
Accessory Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-26
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27-38
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39-45
Typical Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46,47
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48-54
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54-57
Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58-62
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63-71
3
Model number nomenclature
48
FJ
D
064
−
48  Cooling with Natural
Gas Heat
 Constant Volume,
Vertical Supply and Return
FK  Variable Air Volume,
Vertical Supply and Return
JJ  Constant Volume,
Vertical Supply and Return
(Extended Chassis) (034-064 only)
JK  Variable Air Volume,
Vertical Supply and Return
(Extended Chassis) (034-064 only)
FJ
Heat Option
D  Low Gas Heat
E  High Gas Heat
K  Low Gas Heat with Non-Fused Disconnect
L  High Gas Heat with Non-Fused Disconnect
Nominal Tons
034  30
038  35
044  40
048  45
054  50
064  60
074  75
−
−
5
0
1
D
F
Outdoor Air/Relief Option
−
A
B
C




D 
E 
F 
H 
J 
K 
L 
N 
P 
Q 
R 
T 
V 
W 
X 
25% Manual Outdoor Air Damper
Economizer
Economizer with Barometric Relief
Economizer with Non-Modulating Power Exhaust  6 Hp,
High Efficiency*
Economizer with Non-Modulating Power Exhaust  10 Hp,
High Efficiency
Economizer with Non-Modulating Power Exhaust  15 Hp,
High Efficiency
Economizer with Non-Modulating Power Exhaust  20 Hp,
High Efficiency†
Economizer with Modulating Power Exhaust  6 Hp,
High Efficiency*
Economizer with Modulating Power Exhaust  10 Hp,
High Efficiency
Economizer with Modulating Power Exhaust  15 Hp,
High Efficiency
Economizer with Modulating Power Exhaust  20 Hp,
High Efficiency†
Economizer with Non-Modulating Power Exhaust  6 Hp,
Premium Efficiency* ||
Economizer with Non-Modulating Power Exhaust  10 Hp,
Premium Efficiency ||
Economizer with Non-Modulating Power Exhaust  15 Hp,
Premium Efficiency ||
Economizer with Non-Modulating Power Exhaust  20 Hp,
Premium Efficiency† ||
Economizer with Modulating Power Exhaust  6 Hp,
Premium Efficiency* ||
Economizer with Modulating Power Exhaust  10 Hp,
Premium Efficiency ||
Economizer with Modulating Power Exhaust  15 Hp,
Premium Efficiency ||
Economizer with Modulating Power Exhaust  20 Hp,
Premium Efficiency† ||
Filter Options
−  2-in. Throwaway Filters
A  30% 2-in. Pleated Filters
B  90% Bag Filters with Pre-Filters
Supply Fan Options
−  Forward Curved Supply Fan
B  Forward Curved Supply Fan with Inlet Guide Vanes (VAV Units Only)
D  Forward Curved Supply Fan with VFD  7.5 Hp (VAV Units Only)*
E  Forward Curved Supply Fan with VFD 10 Hp (VAV Units Only)*
F  Forward Curved Supply Fan with VFD  15 Hp (VAV Units Only)
G  Forward Curved Supply Fan with VFD  20 Hp (VAV Units Only)
H  Forward Curved Supply Fan with VFD  25 Hp (VAV Units Only)†
J  Forward Curved Supply Fan with VFD  30 Hp (VAV Units Only)†
NOTE: VFD horsepower must match motor horsepower selected in
Position 15.
Supply Fan Motor Options
A
B
C
D
E
F
K
L
M
N
P
Q












7.5 Hp High Efficiency*
10 Hp High Efficiency*
15 Hp High Efficiency
20 Hp High Efficiency
25 Hp High Efficiency✝
30 Hp High Efficiency✝
7.5 Hp Premium Efficiency* ||
10 Hp Premium Efficiency* ||
15 Hp Premium Efficiency ||
20 Hp Premium Efficiency ||
25 Hp Premium Efficiency† ||
30 Hp Premium Efficiency† ||
Packaging
Condenser Coil Material/Hot Gas Bypass Option
1  Domestic
−
A
B
C
D
E
Design Series






Al/Cu Condenser Coil, Al/Cu Evaporator Coil
Al/Cu Condenser Coil, Al/Cu Evaporator Coil with HGBP
Cu/Cu Condenser Coil, Al/Cu Evaporator Coil
Cu/Cu Condenser Coil, Al/Cu Evaporator Coil with HGBP
Precoated Condenser Coil, Al/Cu Evaporator Coil
Precoated Condenser Coil, Al/Cu Evaporator Coil with HGBP
LEGEND
HGBP — Hot Gas Bypass
VAV
— Variable Air Volume
VFD
— Variable Frequency Drive
*Available on sizes 034-048 only.
†Available on sizes 054-074 only.
\ Not available on 575-volt units.
4
0  Initial
Voltage
1  575-3-60
5  208/230-3-60
6  460-3-60
Physical data (sizes 034-038)
BASE UNIT 48FJ,FK,JJ,JK
NOMINAL CAPACITY (tons)
OPERATING WEIGHT (lb)
Base Unit
Low Heat
High Heat
With Economizer
Low Heat
High Heat
COMPRESSORS
Quantity...Type
Capacity Steps (%)
48FJ,JJ Units
48FK,JK Units
Number of Refrigerant Circuits
REFRIGERANT
Operating Charge (lb), Sys 1/Sys 2
Without Hot Gas Bypass
With Hot Gas Bypass
CONDENSER COILS
Quantity
Rows...Fins/in.
Aluminum
Copper (Optional)
Total Face Area (sq ft)
EVAPORATOR COILS
Quantity
Rows...Fins/in.
Total Face Area (sq ft)
Refrigerant Feed Device...No. per Circuit
HEATING SECTION
Number of Heat Exchangers
Input (MBtuh)
Output (MBtuh)
Temperature Rise Range (F)
Efficiency (%)
Burner Orifice Diameter
Quantity (in. ...drill no.)
Pilot Orifice Diameter
Quantity (in. ...drill no.)
Firing Stages
Number of Gas Valves
Manifold Pressure (in. wg)
Natural Gas
Liquid Propane
Gas Line Pressure Range (in. wg)
Natural Gas
Liquid Propane
Field Gas Connection Size (in. FPT)
CONDENSER FANS
Quantity...Diameter (in.)
Nominal Cfm
Motor Hp...Rpm
EVAPORATOR FAN
Nominal Cfm
Maximum Allowable Cfm
Maximum Allowable Rpm
Shaft Diameter at Pulley (in.)
EVAPORATOR-FAN MOTOR AND DRIVE
Motor Hp
Motor Frame Size
Efficiency at Full Load (%)
High Efficiency
Premium Efficiency*
Fan Pulley Pitch Diameter (in.)
Motor Pulley Pitch Diameter (in.)
Resulting Fan Rpm
Maximum Rpm
Belts Quantity...Model No.
Center Distance Range (in.)
Shaft Diameter (in.)
OPTIONAL POWER EXHAUST
Quantity...Motor Hp
Motor Frame Size
Efficiency at Full Load (%) High/Premium*
Fan Pulley Pitch Diameter (in.)
Motor Pulley Pitch Diameter (in.)
Shaft Diameter at Pulley (in.)
Resulting Fan Rpm
Maximum Allowable Rpm
Belts Quantity...No.
FILTERS
Standard Efficiency Throwaway (Standard)
Quantity...Size (in.)
Medium Efficiency (30%) Pleated (Optional)
Quantity...Size (in.)
High Efficiency (90%) Bag Filters with Prefilters (Optional)
Quantity...Size (in.)
034
30
038
35
FJ,FK
JJ,JK
FJ,FK
JJ,JK
5640
5770
6140
6270
5821
5950
6321
6450
5941
6070
6440
6570
6121
6250
6621
6750
Semi-Hermetic
2...06D
1...06D, 1...06E
50,100
17, 33, 50, 66, 83, 100
2
43,100
14, 28, 43, 71, 86, 100
2
29.0/29.0
31.0/29.0
31.0/30.5
29.0/30.5
⁄ -in. Tube Diameter
38
2
2
3...15.0
3...13.7
37.5
3...15.0
3...13.7
37.5
1⁄2-in. Tube Diameter
1
1
3...15.0
4...15.0
32.1
32.1
TXV...1
TXV...1
(Low or High Heat available on any unit)
(Low or High Heat available on any unit)
Low Heat
High Heat
Low Heat
High Heat
6
12
6
12
264
529
264
529
211
423
211
423
0-30
15-45
0-30
15-45
80
80
80
80
6 (.125...1⁄8)
12 (.125...1⁄8)
6 (.125...1⁄8)
12 (.125...1⁄8)
1 (.076...48)
2
1
2 (.076...48)
2
2
1 (.076...48)
2
1
2 (.076...48)
2
2
2.9
10.5
2.9
10.5
5.0-13.0
11.0-13.6
11⁄4
5.0-13.0
11.0-13.6
11⁄4
Propeller Type
2...30
18,600
1.0...1140
2...30
18,600
1.0...1140
Centrifugal 25 x 25 in.
10,500
15,000
900
111⁄16
12,250
15,000
900
111⁄16
(Any motor available on any unit)
10.0
15.0
215T
254T
7.5
213T
88.5
91.7
13.6
3.4
438
900
2...BX60
17.74-14.30
13⁄8
2...3.0
56HZ
81.0/88.5
6.9
3.35
13⁄16
843
1300
2...3VX670
20.0
256T
89.5
91.0
91.0
91.7
93.0
93.6
13.7
13.7
13.7
4.3
4.9
5.5
549
626
703
900
900
900
2...5VX630
2...5VX630
2...5VX630
17.74-14.30
17.63...14.01
17.63...14.01
3
5
1 ⁄8
1 ⁄8
15⁄8
Centrifugal, 15 x 15 in. (Any motor available on any unit)
2...5.0
2...7.5
184T
213T
87.5/89.5
88.5/91.7
6.9
6.9
4.12
5.0
3
1 ⁄16
13⁄16
1040
1264
1300
1300
2...3VX670
2...3VX710
12...20
4...16
12...20
4...16
6...20
6...20
x
x
x
x
x
x
25
20
25
20
24
20
x
x
x
x
x
x
2
2
2
2
22
22
12...20
4...16
12...20
4...16
6...20
6...20
x
x
x
x
x
x
25
20
25
20
24
20
x
x
x
x
x
x
2
2
2
2
22
22
LEGEND
TXV — Thermostatic Expansion Valve
*Not available on 575-v units.
5
Physical data (sizes 044,048)
BASE UNIT 48FJ,FK,JJ,JK
NOMINAL CAPACITY (tons)
OPERATING WEIGHT (lb)
Base Unit
Low Heat
High Heat
With Economizer
Low Heat
High Heat
COMPRESSORS
Quantity...Type
Capacity Steps (%)
48FJ,JJ Units
48FK,JK Units
Number of Refrigerant Circuits
REFRIGERANT
Operating Charge (lb), Sys 1/Sys 2
Without Hot Gas Bypass
With Hot Gas Bypass
CONDENSER COILS
Quantity
Rows...Fins/in.
Aluminum
Copper (Optional)
Total Face Area (sq ft)
EVAPORATOR COILS
Quantity
Rows...Fins/in.
Total Face Area (sq ft)
Refrigerant Feed Device...No. per Circuit
HEATING SECTION
Number of Heat Exchangers
Input (MBtuh)
Output (MBtuh)
Temperature Rise Range (F)
Efficiency (%)
Burner Orifice Diameter
Quantity (in. ...drill no.)
Pilot Orifice Diameter
Quantity (in. ...drill no.)
Firing Stages
Number of Gas Valves
Manifold Pressure (in. wg)
Natural Gas
Liquid Propane
Gas Line Pressure Range (in. wg)
Natural Gas
Liquid Propane
Field Gas Connection Size (in. FPT)
CONDENSER FANS
Quantity...Diameter (in.)
Nominal Cfm
Motor Hp...Rpm
EVAPORATOR FAN
Nominal Cfm
Maximum Allowable Cfm
Maximum Allowable Rpm
Shaft Diameter at Pulley (in.)
EVAPORATOR-FAN MOTOR AND DRIVE
Motor Hp
Motor Frame Size
Efficiency at Full Load (%)
High Efficiency
Premium Efficiency*
Fan Pulley Pitch Diameter (in.)
Motor Pulley Pitch Diameter (in.)
Resulting Fan Rpm
Maximum Rpm
Belts Quantity...Model No.
Center Distance Range (in.)
Shaft Diameter (in.)
OPTIONAL POWER EXHAUST
Quantity...Motor Hp
Motor Frame Size
Efficiency at Full Load (%) High/Premium
Fan Pulley Pitch Diameter (in.)
Motor Pulley Pitch Diameter (in.)
Shaft Diameter at Pulley (in.)
Resulting Fan Rpm
Maximum Allowable Rpm
Belts Quantity...No.
FILTERS
Standard Efficiency Throwaway (Standard)
Quantity...Size (in.)
Medium Efficiency (30%) Pleated (Optional)
Quantity...Size (in.)
High Efficiency (90%) Bag Filters with Prefilters (Optional)
Quantity...Size (in.)
LEGEND
TXV — Thermostatic Expansion Valve
*Not available on 575-v units.
6
044
40
048
45
FJ,FK
JJ,JK
FJ,FK
JJ,JK
6540
6670
7040
7170
6661
6790
7161
7290
6841
6970
7340
7470
6961
7090
7461
7590
Semi-Hermetic
2...06E
2...06E
50,100
25, 50, 75, 100
2
56,100
18, 36, 55, 64, 82, 100
2
40.0/40.0
42.0/40.0
43.5/39.0
41.5/39.0
⁄ -in. Tube Diameter
38
2
2
3...15.0
3...13.7
50.0
3...15.0
3...13.7
50.0
1⁄2-in. Tube Diameter
2
2
3...15.0
4...15.0
45.5
45.5
TXV...2
TXV...2
(Low or High Heat available on any unit)
(Low or High Heat available on any unit)
Low Heat
High Heat
Low Heat
High Heat
6
12
6
12
264
529
264
529
211
423
211
423
0-30
15-45
0-30
15-45
80
80
80
80
6 (.125...1⁄8)
12 (.125...1⁄8)
6 (.125...1⁄8)
12 (.125...1⁄8)
1 (.076...48)
2
1
2 (.076...48)
2
2
1 (.076...48)
2
1
2 (.076...48)
2
2
2.9
10.5
2.9
10.5
5.0-13.0
11.0-13.6
11⁄4
5.0-13.0
11.0-13.6
11⁄4
Propeller Type
3...30
26,000
1.0...1140
3...30
26,000
1.0...1140
Centrifugal 25 x 25 in.
14,000
20,000
900
111⁄16
15,750
20,000
900
111⁄16
(Any motor available on any unit)
10.0
15.0
215T
254T
7.5
213T
88..5
91.7
13.6
3.4
438
900
2...BX60
17.74-14.30
13⁄8
2...3.0
56HZ
81.0/88.5
6.9
3.35
13⁄16
843
1300
2...3VX670
20.0
256T
88.5
91.0
91.0
91.7
93.0
93.6
13.7
13.7
13.7
4.3
4.9
5.5
549
626
703
900
900
900
2...5VX630
2...5VX630
2...5VX630
17.74...14.30
17.63...14.01
17.63...14.01
3
5
1 ⁄8
1 ⁄8
15⁄8
Centrifugal, 15 x 15 in. (Any motor available on any unit)
2...5.0
2...7.5
184T
213T
8.75/89.5
88.5/91.7
6.9
6.9
41.2
5.0
3
1 ⁄16
13⁄16
1040
1264
1300
1300
2...3VX670
2...3VX710
12...20
4...16
12...20
4...16
6...20
6...20
x
x
x
x
x
x
25
20
25
20
24
20
x
x
x
x
x
x
2
2
2
2
22
22
12...20
4...16
12...20
4...16
6...20
6...20
x
x
x
x
x
x
25
20
25
20
24
20
x
x
x
x
x
x
2
2
2
2
22
22
Physical data (sizes 054-074)
BASE UNIT 48FJ,FK,JJ,JK
NOMINAL CAPACITY (tons)
OPERATING WEIGHT (lb)
Base Unit
Low Heat
High Heat
With Economizer
Low Heat
High Heat
COMPRESSORS
Quantity...Type
Capacity Steps (%)
48FJ,JJ Units
48FK,JK Units
Number of Refrigerant Circuits
REFRIGERANT
Operating Charge (lb), Sys 1/Sys 2
Without Hot Gas Bypass
With Hot Gas Bypass
CONDENSER COILS
Quantity
Rows...Fins/in.
Aluminum
Copper (Optional)
Total Face Area (sq ft)
EVAPORATOR COILS
Quantity
Rows...Fins/in.
Total Face Area (sq ft)
Refrigerant Feed Device...
No. per Circuit
HEATING SECTION
Number of Heat Exchangers
Input (MBtuh)
Output (MBtuh)
Temperature Rise Range (F)
Efficiency (%)
Burner Orifice Diameter
Quantity (in. ...drill no.)
Pilot Orifice Diameter
Quantity (in. ...drill no.)
Firing Stages
Number of Gas Valves
Manifold Pressure (in. wg)
Natural Gas
Liquid Propane
Gas Line Pressure Range (in. wg)
Field Gas Connection Size (in. FPT)
CONDENSER FANS
Quantity...Diameter (in.)
Nominal Cfm
Motor Hp...Rpm
EVAPORATOR FAN
Nominal Cfm
Maximum Allowable Cfm
Maximum Allowable Rpm
Shaft Diameter at Pulley (in.)
EVAPORATOR-FAN MOTOR AND DRIVE
Motor Hp
Motor Frame Size
Efficiency at Full Load (%)
High Efficiency
Premium Efficiency*
Fan Pulley Pitch Diameter (in.)
Motor Pulley Pitch Diameter (in.)
Resulting Fan Rpm
Maximum Rpm
Belts Quantity...Model No.
Center Distance Range (in.)
Shaft Diameter (in.)
OPTIONAL POWER EXHAUST
Quantity...Motor Hp
Motor Frame Size
Efficiency at Full Load (%) High/Premium*
Fan Pulley Pitch Diameter (in.)
Motor Pulley Pitch Diameter (in.)
Shaft Diameter at Pulley (in.)
Resulting Fan Rpm
Maximum Allowable Rpm
FILTERS
Standard Efficiency
Throwaway (Standard)
Quantity...Size (in.)
Medium Efficiency (30%) Pleated (Optional)
Quantity...Size (in.)
High Efficiency (90%) Bag Filters
with Prefilters (Optional)
Quantity...Size (in.)
LEGEND
TXV — Thermostatic Expansion Valve
054
50
064
60
FJ,FK
JJ,JK
FJ,FK
JJ,JK
074
75
FJ,FK
8700
8820
9248
9368
9000
9120
9,540
9,668
9,420
9,550
9230
9350
9778
9898
9,950
10,080
2...06E
9530
10,070
9650
10,198
Semi-Hermetic
2...06E
2...06E
60, 100
20, 40, 60, 80, 100
2
50, 100
17, 33, 50, 66, 83, 100
2
43, 100
14, 28, 43, 71, 85, 100
2
59.0/44.5
62.0/44.5
61.0/61.0
64.0/61.0
3⁄8-in. Tube Diameter
4
70.5/64.5
73.5/64.5
3...17.0
3...15.7
108.4
2
3...17.0
61.5
TXV...2
3...17.0
3...15.7
72.4
1⁄2-in. Tube Diameter
2
4...17.0
61.5
TXV...2
(Low or High Heat
available on any unit)
Low Heat
High Heat
12
18
540
810
432
648
5-35
15-45
80
80
(Low or High Heat
available on any unit)
Low Heat
High Heat
12
18
540
810
432
648
5-35
15-45
80
80
(Low or High Heat
available on any unit)
Low Heat
High Heat
12
18
540
810
432
648
5-35
15-45
80
80
4
2...17.0, 3...17.0
2...15.7, 3...15.7
72.4
4
2
4...17.0
61.5
TXV..2
12 (.125...1⁄8)
18 (.125...1⁄8)
12 (.125...1⁄8)
18 (.125...1⁄8)
12 (.125...1⁄8)
18 (.125...1⁄8)
2 (.076...48)
2
2
3 (.076...48)
2
3
2 (.076...48)
2
2
3 (.076...48)
2
3
2 (.076...48)
2
2
3 (.076...48)
2
3
2.9
10.5
5.0-13.0
11⁄2
2.9
10.5
5.0-13.0
11⁄2
Propeller Type
4...30
40,000
1.0...1140
Centrifugal 30 x 27 in.
21,000
30,000
750
111⁄16
(Any motor available on any unit)
4...30
40,000
1.0...1140
17,500
25,000
750
111⁄16
15.0
254T
20.0
256T
91.3
93.0
13.7
4.5
575
750
2...5VX1230
48.25...44.00
15⁄8
15...20
5...16
15...20
5...16
x
x
x
x
25
20
25
20
x
x
x
x
2
2
2
2
6...20 x 24 x 22
6...24 x 24 x 22
5...30
50,000
1.0...1140
24,500
30,000
750
111⁄16
25.0
284T
91.0
91.7
93.6
93.6
13.7
13.7
5.1
5.5
651
703
750
750
2...5VX1230
2...5VX1230
48.25...44.00
48.50...44.25
5
1 ⁄8
17⁄8
Centrifugal, 18 x 15 in. (Any motor available on any unit)
2...7.5
213T
88.5/91.7
10.6
5.0
17⁄16
820
925
2...5.0
184T
87.5/89.5
10.6
4.5
17⁄16
740
925
2.9
10.5
5.0-13.0
11⁄2
15...20
5...16
15...20
5...16
x
x
x
x
25
20
25
20
x
x
x
x
2
2
2
2
6...20 x 24 x 22
6...24 x 24 x 22
30.0
286T
92.4
93.6
15.5
6.3
711
750
2...5VX1250
48.50...44.25
17⁄8
2...10.0
215T
89.5/91.7
10.6
5.6
17⁄16
920
925
15...20
5...16
15...20
5...16
x
x
x
x
25
20
25
20
x
x
x
x
2
2
2
2
6...20 x 24 x 22
6...24 x 24 x 22
*Not available on 575-v units.
7
Physical data (cont)
OPERATING WEIGHTS OF OPTIONS AND ACCESSORIES
OPTION OR ACCESSORY
Roof Curb
48FJ,FK
48JJ,JK
Condenser Section Roof Curb
Economizer
Power Exhaust
Barometric Relief
High-Efficiency Filters
Bag Filters
Hail Guard
Copper Condenser Coil Fins
Inlet Guide Vanes
Variable Frequency Drive
7.5 hp
10 hp
15 hp
20 hp
25 hp
30 hp
UNIT SIZE
054
064
074
480
520
—
300*
600*
200
20
35
150
235
95
515
555
540
530*
710*
200
20
40
145
235
115
515
555
540
530*
710*
200
20
40
145
235
115
515
—
625
530*
710*
200
20
40
210
420
115
65
65
110
111
—
—
—
—
110
111
190
190
—
—
110
111
190
190
—
—
110
111
190
190
034,038
044,048
450
490
—
300*
600*
200
20
35
120
180
95
65
65
110
111
—
—
*Includes hood.
SUPPLY FAN DRIVE DATA
SHAFT
DIA
Sizes 034-048
7.5
13⁄8
10
13⁄8
15
15⁄8
20
15⁄8
Sizes 054-074
15
15⁄8
20
15⁄8
25
17⁄8
30
17⁄8
HP
8
SPEED
(rpm)
MOTOR
SHEAVE
MOTOR
PITCH DIA.
WHEEL
SHEAVE
WHEEL
PITCH DIA.
QUANTITY
...BELT
438
549
626
703
2BK36
2B5V42
2B5V48
2B5V54
3.4
4.3
4.9
5.5
2B5V136
2B5V136
2B5V136
2B5V136
13.6
13.7
13.7
13.7
2...BX60
2...5VX630
2...5VX630
2...5VX630
575
651
703
711
2B5V44
2B5V50
2B5V54
2B5V62
4.5
5.1
5.5
6.3
2B5V136
2B5V136
2B5V136
2B5V154
13.7
13.7
13.7
15.5
2...5VX1230
2...5VX1230
2...5VX1230
2...5VX1250
WEIGHT DISTRIBUTION AND CENTER OF GRAVITY
3
4
2
1
B
A
48FJD,FKD
48FJK,FKK
48FJE,FKE
48FJL,FKL
48JJD,JKD
48JJK,JKK
48JJE,JKE
48JJL,JKL
1
1754
1799
2035
2060
2334
2431
2452
1781
1826
2057
2082
2375
2393
2494
1879
1924
2160
2185
2471
2568
1906
1951
2182
2207
2512
2530
034
038
044
048
054
064
074
034
038
044
048
054
064
074
034
038
044
048
054
064
034
038
044
048
054
064
2
1213
1218
1382
1387
2276
2328
2518
1251
1256
1424
1429
2295
2373
2541
1338
1343
1507
1512
2413
2465
1376
1381
1549
1554
2432
2510
NOTE: Weights include economizer.
UNIT
48FJ,FK,JJ,JK
D,K034-048
E,L034-048
D,K054-074†
E,L054-074†
CENTER OF GRAVITY
DIMENSIONS (Ft-in.)
A
B
14- 9
3-10
14-11
3-10
17- 3
3-10
17- 4
3-10
19- 7
3-10
19- 7
3-10
21- 0
3-10
14- 8
3-10
14-10
3-10
17- 2
3-10
17- 3
3-10
19- 7
3-10
19- 7
3-10
21- 0
3-10
16- 2
3-10
16- 4
3-10
18- 7
3-10
18- 8
3-10
20- 9
3-10
20- 9
3-10
16- 1
3-10
16- 3
3-10
18- 6
3-10
18- 8
3-10
20- 9
3-10
20- 9
3-10
CORNER WEIGHT (lb)
UNIT
3
1216
1221
1385
1390
2281
2334
2523
1253
1258
1428
1433
2300
2378
2546
1341
1346
1510
1515
2418
2471
1378
1383
1553
1558
2437
2515
4
1758
1828
2039
2044
2339
2437
2457
1785
1855
2061
2066
2380
2506
2499
1883
1953
2164
2169
2476
2574
1910
1980
2186
2191
2517
2643
Total
5,941
6,066
6,841
6,881
9,230
9,530
9,950
6,070
6,195
6,970
7,010
9,350
9,650
10,080
6,441
6,566
7,341
7,381
9,778
10,078
6,570
6,695
7,470
7,510
9,898
10,198
HEATING CAPACITIES
(LP and Natural Gas)
GAS INPUT CAPACITY
(Btuh x 1000)
Stage 1
Stage 2*
193
264
270
540
264
530
540
810
MAXIMUM
OUTPUT
CAPACITY
(Btuh x 1000)
211
424
432
648
LEGEND
LP — Liquid Propane
*Variable Air Volume units (48FK,JK) are single stage (stage 2) only.
†Size 074 not available for 48JJ,JK units.
NOTES:
1. Ratings are approved for altitudes to 2000 ft. At altitudes over
2000 ft, ratings are 4% less for each 1000 ft above sea level.
2. At atltitudes up to 2000 ft, the following formula may be used to calculate air temperature rise:
maximum output capacity
Dt =
1.10 x air quantity
TEMP
RISE
(F)
EFFICIENCY
5-30
15-45
5-35
15-45
80.0
80.0
80.0
80.0
AIRFLOW
(cfm)
Min
Max
6,394
8,552
11,220
13,090
20,000
20,000
30,000
30,000
3. At altitudes above 2000 ft, the following formula may be used:
maximum output capacity
Dt =
(.24 x specific weight of air x 60) (air quantity)
4. Minimum allowable temperature of mixed air entering the heat exchanger during half-rate (first stage) operation is 35 F. There is no
minimum mixture temperature limitation during full-rate operation.
5. Temperature rise limits: see table.
9
Physical data (cont)
COOLING AIRFLOW OPERATING RANGE
UNIT
48FJ,JJ
48FK,JK
SIZE
034
038
044
048
054
064
074*
034
038
044
048
054
064
074*
MIN CFM
9,000
10,500
12,000
13,500
15,000
18,000
21,000
6,000
7,500
8,000
9,500
10,000
12,000
14,000
MAX CFM
15,000
15,000
20,000
20,000
25,000
30,000
30,000
15,000
15,000
20,000
20,000
25,000
30,000
30,000
MIN L/S
4250
4960
5660
6370
7080
8500
9910
2830
3300
3780
4250
4720
5660
6610
MAX L/S
7,080
7,080
9,440
9,440
11,800
14,160
14,160
7,080
7,080
9,440
9,440
11,800
14,160
14,160
*Size 074 not available in 48JJ,JK.
Part load operation
For efficient part load operation, these units utilize 2 semihermetic compressors, each on its own refrigerant circuit.
Additional capacity steps allow the unit to match the cooling load without cycling compressors or artificially loading
the unit with hot gas bypass.
Constant volume units have 2 stages of cooling capacity
as standard. Accessory suction pressure unloaders are available for installation on the lead compressor. Accessory
are NOT required on the lag compressor and should
NOT be installed. Capacity reduction is handled by the lead
compressor.
To provide the maximum capacity steps available, VAV
units are supplied with electric unloaders as standard.
10
See table below for capacity steps per unit.
CAPACITY STEPS
CONSTANT VOLUME (FJ,JJ)
UNIT
With One
With 2
SIZE Standard
Unloader
Unloaders
034 50, 100 33, 50, 83, 100 17, 33, 50, 66, 83, 100
038 43, 100 28, 42, 86, 100 14, 28, 42, 72, 86, 100
044 50, 100 25, 50, 75, 100
—
048 56, 100 38, 58, 81, 100 19, 38, 58, 62, 81, 100
054 60, 100 40, 60, 80, 100 20, 40, 60, 80, 100
064 50, 100 33, 50, 83, 100 17, 33, 50, 66, 83, 100
074 43, 100 28, 43, 85, 100 14, 28, 43, 71, 85, 100
VARIABLE AIR
VOLUME (FK,JK)
17, 33, 50, 66, 83, 100
14, 28, 43, 72, 86, 100
25, 50, 75, 100
18, 36, 55, 64, 82, 100
20, 40, 60, 80, 100
17, 33, 50, 66, 83, 100
14, 28, 43, 71, 85, 100
Options and accessories
ITEM
OPTION* ACCESSORY†
Integrated Economizer
X
Variable Frequency Drive (VAV Only)
X
Inlet Guide Vanes (VAV Only)
X
Non-Fused Disconnect
X
High-Efficiency (30%) Pleated Filters
X
High-Efficiency (90%) Bag Filters
X
(with Pre-Filters)
Copper/Copper Condenser Coil
X
Premium-Efficiency Supply Fan Motor**
X
Hot Gas Bypass
X
Pre-Coated Cu/Al Condenser Coils
X
Cu/Cu Condenser Coils
X
Post Coated Condenser Coils
X
Barometric Relief
X
X
Non-Modulating Power Exhaust (CV Only)
X
100% Modulating Power Exhaust
X
X
(CV and VAV)
Roof Curb:
X
Unit Curb
X
Condenser Section Curb††
VAV Remote Panel
X
Condenser Hail Guard
X
Non-Programmable Thermostat
X
and Subbase (CV Only)
Compressor Unloaders (CV Only)
X
MotormasterT Head Pressure
X
Control Package
Space Temperature Reset Package (VAV Only)
X
Two-Step Demand Limit (VAV Only)
X
Time GuardT II Control Circuit (CV only)
X
Differential Enthalpy Control
X
Pressure Operated Unloaders (CV Only)
X
Communicating Programmable
X
Thermostats (CV Only)
LP Gas (ETL and ETL, Canada approved)
X
CV — Constant Volume
LP — Liquid Propane
VAV — Variable Air Volume
*Factory installed.
†Field installed.
**Not available on 575-volt units.
††Available on sizes 054-074 only.
POWER EXHAUST FANS
When combined with the economizer, the power exhaust can be
used to exhaust up to 100% of the return air and eliminate overpressurization of the building. The power exhaust utilizes 2 forwardcurved fans, each belt driven by its own motor.
The constant volume power exhaust stages the 2 motors according to economizer position to control the building pressure. The
constant volume power exhaust is available on 48FJ,JJ units only.
The 100% modulating power exhaust stages the 2 motors according to interior space pressure. The lead fan has a discharge
modulation device. Once the lead fan is fully loaded and the interior pressure is above set point, the lag fan is energized and the
lead fan modulates to maintain the space pressure set point. The
100% modulating power exhaust is available on 48FJ,FK,JJ,JK units.
Hinged access panels on both sides of the unit allow service access to exhaust fans and motors. Exhaust fans have extended lubrication lines to aid maintenance.
TIME GUARDt II CONTROL
Accessory solid state Time Guard II device prevents compressor
short cycling by providing a 5-minute (± 2 minutes) delay before
restarting the compressor after shutdown. The use of Time Guard
II devices (one per compressor) ensures proper oil return and
protects motor windings from overheating. The Time Guard II device also helps conserve energy by preventing unnecessary compressor wear.
11
Options and accessories (cont)
.1
0
.2 .3 .4
.5
INCHES W.C.
CONTROL BOX —
MODULATING POWER EXHAUST
The modulating power exhaust (MPE) control box features a fieldadjustable differential pressure switch and gage that allow the
technician to verify the interior space pressure set points as they
are changed. A 3⁄8-in. plastic tube is run to the interior space to
sense space pressure. All other controls are factory installed with
the MPE option.
DISCHARGE AIR
SET POINT
POTENTIOMETER
DISPLAY
INLET GUIDE VANES
Inlet guide vanes provide fan modulation on VAV units. All controls are factory installed. A 3⁄8-in. plastic tube to sense supply
duct pressure is field installed.
DISPLAY
BUTTON
VAV MICROPROCESSOR CONTROLS
DISPLAY/SET POINT BOARD
DISPLAY
20
10
0
–10
–20
30
40
–10
0
–20
10
–30
20
50
60
°C
°F
70
COLD TEMP SETPOINT
ECONOMIZER
Microprocessor-based VAV control system constantly monitors
more than a dozen system operating condition indicators throughout the unit. It analyzes these inputs and adjusts unit operation to
maintain accurate temperature control with minimal energy consumption throughout all operating modes and loading conditions.
By displaying any of 18 different numerical codes, the control
system instantly detects and locates component problems in the
unit.
PIVOTING ECONOMIZER HOOD
Integrated economizer saves energy by using low temperature outside air to provide cooling. A solid-state enthalpy control
adjusts the economizer. The electronic control logic located in the economizer motor (48FJ,JJ) or in the microprocessor (48FK,JK)
integrates economizer cooling with mechanical cooling. If the conditioned space requires more cooling, mechanical cooling will
be brought on to satisfy the cooling need. Spring return damper motor automatically closes the outdoor air dampers in the
event of a power failure.
Low-leakage design includes sealing strip along edge of damper blades and venetian blind type seal along end of
damper blade.
Economizer hood pivots up into the unit for shipment and storage. No assembly of hoods is required.
12
] are in millimeters.
Center of gravity includes economizer. Unit weight does not include economizer.
3. Unit Clearances
Top — Do not restrict condenser fans
Control Box End — 68-09
Sides — 68-09
Economizer End — 68-09 (except power exhaust units 108-09)
For smaller service and operational clearances, contact Carrier Application Engineering Department.
4. Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is recommended the ducts be
supported by cross braces as done on the accessory roof curb.
5. When the unit is slab mounted, plug the factory drilled auxiliary condensate drain holes.
6. Economizer side hoods are folded inside unit for shipping.
2.
NOTES:
1. Dimensions in [
WEIGHT
lb
kg
48FJD,FKD,FJK,FKK034 5640 2563.6
48FJE,FKE,FJL,FKL034 5770 2622.7
48FJD,FKD,FJK,FKK038 5821 2640.4
48FJE,FKE,FJL,FKL038 5950 2698.9
UNIT
SIZE
A
mm
ft-in.
4498 14- 91⁄8
4474 14- 81⁄8
4547 14-11
4521 14-10
Base unit dimensions — 48FJ,FK034,038 units
13
14
] are in millimeters.
2.
Center of gravity includes economizer. Unit weight does not include economizer.
3. Unit clearances
Top — Do not restrict condenser fans.
Control box end — 68-09
Sides — 68-09
Economizer end — 68-09 (except power exhaust units 108-09)
For smaller service and operational clearances, contact Carrier Application Engineering department.
4. Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is recommended the ducts be supported by cross braces as done on the accessory roof curb.
5. When the unit is slab mounted, plug the factory drilled auxiliary condensate drain holes.
6. Economizer side hoods are folded inside unit for shipping.
NOTES:
1. Dimensions in [
48FJD,FKD,FJK,FKK044
48FJE,FKE,FJL,FKL044
48FJD,FKD,FJK,FKK048
48FJE,FKE,FJL,FKL048
UNIT
SIZE
WEIGHT
lb
kg
6540 2972.7
6670 3031.8
6661 3021.4
6790 3079.9
mm
5255
5229
5283
5258
ft-in.
17-27⁄8
17-17⁄8
17-4
17-3
A
Base unit dimensions — 48FJ,FK044,048 units
6.
5.
4.
3.
2.
] are in millimeters.
Center of gravity includes economizer. Unit
weight does not include economizer.
Unit clearances
Top — Do not restrict condenser fans.
Control box end — 68-09
Sides — 68-09
Economizer end — 68-09 (except power exhaust
units 108-09)
For smaller service and operational clearances, contact Carrier Application Engineering department.
Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is
recommended the ducts be supported by cross
braces as done on the accessory roof curb.
When the unit is slab mounted, plug the factory
drilled auxiliary condensate drain holes.
Economizer side hoods are folded inside unit for
shipping.
NOTES:
1. Dimensions in [
WEIGHT
lb
kg
48FJD,FKD,FJK,FKK054 8700 3955
48FJD,FKD,FJK,FKK064 9000 4091
48FJD,FKD,FJK,FKK074 9420 4282
48FJE,FKE,FJL,FKL054 8820 4009
48FJE,FKE,FJL,FKL064 9120 4145
48FJE,FKE,FJL,FKL074 9550 4341
UNIT
SIZE
mm
2718
2718
3543
2718
2718
3543
ft-in.
8-11
8-11
11-71⁄2
8-11
8-11
11-71⁄2
A
mm
6541
6541
5715
6541
6541
5715
ft-in.
21-51⁄2
21-51⁄2
18-9
21-51⁄2
21-51⁄2
18-9
B
mm
5969
5969
6401
5969
5969
6401
C
ft-in.
19-7
19-7
21-0
19-7
19-7
21-0
mm
1163
1163
1163
1163
1163
1163
ft-in.
3-913⁄16
3-913⁄16
3-913⁄16
3-913⁄16
3-913⁄16
3-913⁄16
D
mm
11 140
11 140
12 049
11 140
11 140
12 049
ft-in.
36-69⁄16
36-69⁄16
39-63⁄8
36-69⁄16
36-69⁄16
39-63⁄8
E
mm
11 524
11 524
12 433
11 524
11 524
12 433
ft-in.
37-911⁄16
37-911⁄16
40-91⁄2
37-911⁄16
37-911⁄16
40-91⁄2
F
Base unit dimensions — 48FJ,FK054-074 units
15
16
9.
7.
8.
6.
5.
4.
3.
2.
] are in millimeters.
Center of gravity includes economizer. Unit
weight does not include economizer or heating coil.
Unit Clearances
Top — Do not restrict condenser fans
Control Box End — 68-09
Sides — 68-09
Economizer End — 68-09 (except power exhaust
units 108-09)
For smaller service and operational clearances, contact Carrier Application Engineering Department.
Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is
recommended the ducts be supported by cross
braces as done on the accessory roof curb.
When the unit is slab mounted, plug the factory
drilled auxiliary condensate drain holes.
Auxiliary heating coil dimensions (maximum):
Length — (header included), 78-01⁄49 [2149]
Width, 08-95⁄89 [244]
Height, 48-515⁄169 [1370]
Auxiliary heating coil field supplied and installed.
Economizer side hoods are folded inside unit for
shipping.
Pipe chases for auxiliary coil are not provided in
unit. Pipe chases must be field-cut.
NOTES:
1. Dimensions in [
AUXILIARY COIL PIPE CHASES (SEE NOTE 9)
WEIGHT
lb
kg
48JJD,JKD,JJK,JKK034 6140 2785
48JJE,JKE,JJL,JKL034 6270 2844
48JJD,JKD,JJK,JKK038 6321 2867.2
48JJE,JKE,JJL,JKL038 6450 2925.7
UNIT
SIZE
A
mm
ft-in.
4918 16-111⁄16
4891 16-09⁄16
4974 16-37⁄8
4946 16-23⁄4
Base unit dimensions — 48JJ,JK034,038 units
7.
8.
9.
6.
5.
4.
3.
2.
] are in millimeters.
Center of gravity includes economizer. Unit weight does
not include economizer or heating coil.
Unit Clearances
Top — Do not restrict condenser fans
Control Box End — 68-09
Sides — 68-09
Economizer End — 68-09 (except power exhaust units 108-09)
For smaller service and operational clearances, contact Carrier
Application Engineering Department.
Downshot ducts designed to be attached to accessory roof curb.
If unit is mounted on dunnage, it is recommended the ducts be
supported by cross braces as done on the accessory roof curb.
When the unit is slab mounted, plug the factory drilled auxiliary
condensate drain holes.
Auxiliary heating coil dimensions (maximum):
Length — (header included), 78-01⁄49 [2140]
Width, 08-95⁄89 [244]
Height, 48-71⁄29 [1410]
Auxiliary heating coil field supplied and installed.
Economizer side hoods are folded inside unit for shipping.
Pipe chases for auxiliary coil are not provided in unit. Pipe chases
must be field-cut.
NOTES:
1. Dimensions in [
AUXILIARY COIL PIPE CHASES (SEE NOTE 9)
48JJD,JKD,JJK,JKK044
48JJE,JKE,JJL,JKL044
48JJD,JKD,JJK,JKK048
48JJE,JKE,JJL,JKL048
UNIT
SIZE
WEIGHT
lb
kg
7040 3193
7170 3252
7161 3248
7290 3307
mm
5650
5650
5704
5677
ft-in.
18-67⁄16
18-67⁄16
18-85⁄8
18-71⁄2
A
Base unit dimensions — 48JJ,JK044,048 units
17
WEIGHT
lb
kg
48JJD,JKD,JJK,JKK054 9248 4194
48JJE,JKE,JJL,JKL054 9368 4278
48JJD,JKD,JJK,JKK064 9540 4330
48JJE,JKE,JJL,JKL064 9668 4385
UNIT
SIZE
mm
3728
3728
3728
3728
18
ft-in.
12-23⁄4
12-23⁄4
12-23⁄4
12-23⁄4
A
mm
6171
6171
6171
6171
mm
6312
6312
6312
6312
ft-in.
20-89⁄16
20-89⁄16
20-89⁄16
20-89⁄16
C
mm
1163
1163
1163
1163
ft-in.
3-925⁄32
3-925⁄32
3-925⁄32
3-925⁄32
D
AUXILIARY COIL PIPE CHASES (SEE NOTE 9)
ft-in.
20-215⁄16
20-215⁄16
20-215⁄16
20-215⁄16
B
mm
11 780
11 780
11 780
11 780
ft-in.
38-713⁄16
38-713⁄16
38-713⁄16
38-713⁄16
E
mm
12 164
12 164
12 164
12 164
ft-in.
39-107⁄8
39-107⁄8
39-107⁄8
39-107⁄8
F
Center of gravity includes economizer. Unit weight does not
include economizer or heating coil.
3. Unit Clearances
Top — Do not restrict condenser fans — 68-09
Sides — 68-09
Economizer End — 68-09 (except power exhaust units 108-09)
For smaller service and operational clearances, contact Carrier Application Engineering Department.
4. Downshot ducts designed to be attached to accessory roof curb. If
unit is mounted on dunnage, it is recommended the ducts be supported by cross braces as done on the accessory roof curb.
5. When the unit is slab mounted, plug the factory drilled auxiliary condensate drain holes.
6. Auxiliary heating coil dimensions (maximum):
Length — (header included): 78-01⁄49 [2140]
Width, 08-95⁄89 [244]
Height, 58-69 [1678]
7. Auxiliary heating coil field supplied and installed.
8. Economizer side hoods are folded inside unit for shipping.
9. Pipe chases for auxiliary coil are not provided in unit. Pipe chases
must be field-cut.
2.
NOTES:
1. Dimensions in [ ] are in millimeters.
Base unit dimensions — 48JJ,JK054,064 units
NOTES:
1. Roof curb is shipped disassembled.
2. Roof curb: 14 ga. (VA03-56) steel.
3. Dimensions in [ ] are millimeters.
*
Accessory dimensions
ROOF CURB — 48FJ,FK034,038
19
NOTES:
1. Roof curb is shipped disassembled.
2. Roof curb: 14 ga. (VA03-56) steel.
3. Dimensions in [ ] are millimeters.
ROOF CURB — 48FJ,FK044,048
Accessory dimensions (cont)
*
20
ROOF CURB — 48FJ,FK054-074
NOTES:
1. Roof curb is shipped disassembled.
2. Roof curb: 14 ga. (VA03-56) steel.
3. Dimensions in [ ] are millimeters.
4. Suggested hole location for field wiring through
roof curb (holes to be supplied by field).
*
21
NOTES:
1. Roof curb is shipped disassembled.
2. Roof curb: 14 ga. (VA03-56) steel.
3. Dimensions in [ ] are millimeters.
4. Pipe chases for auxiliary coil must be field-cut.
ROOF CURB — 48JJ,JK034,038
Accessory dimensions (cont)
*
22
ROOF CURB — 48JJ,JK044,048
NOTES:
1. Roof curb is shipped disassembled.
2. Roof curb: 14 ga. (VA03-56) steel.
3. Dimensions in [ ] are millimeters.
4. Pipe chases for auxiliary coil must be field-cut.
*
23
NOTES:
1. Roof curb is shipped disassembled.
2. Roof curb: 14 ga. (VA03-56) steel.
3. Dimensions in [ ] are millimeters.
4. Suggested hole location for field wiring through
roof curb (holes to be supplied by field).
5. Pipe chases for auxiliary coil must be field-cut.
ROOF CURB — 48JJ,JK054,064
Accessory dimensions (cont)
*
24
CONDENSER SECTION ROOF CURB — (SIZE 054 AND 064 ONLY)
NOTES:
1. Roof curb is shipped disassembled.
3. Dimensions in [ ] are millimeters.
2. Roof curb: 14 ga. (VA03-56) steel.
Roof curb pans: 16 ga. (VA03-56) steel.
*
25
Accessory dimensions (cont)
26
CONDENSER SECTION ROOF CURB — (SIZE 074 ONLY)
NOTES:
1. Roof curb is shipped disassembled.
3. Dimensions in [ ] are millimeters.
2. Roof curb: 14 ga. (VA03-56) steel.
Roof curb pans: 16 ga. (VA03-56) steel.
*
Selection procedure (with example)
I Determine cooling and heating requirements at
design conditions.
Given:
Required Cooling Capacity (TC) . . . . . 720,000 Btuh
Sensible Heat Capacity (SHC) . . . . . . 510,000 Btuh
Required Heating Capacity . . . . . . . . . 632,000 Btuh
Condenser Entering Air Temperature . . . . . . . . 95 F
Indoor Air Temperature . . . . . . . 80 F edb, 67 F ewb
Evaporator Air Quantity . . . . . . . . . . . . . 24,000 Cfm
External Static Pressure . . . . . . . . . . . . . . . 2.2 in. wg
Electrical Characteristics (V-Ph-Hz) . . . . . . . 460-3-60
Integrated Economizer Required.
II Select unit based on required cooling capacity.
Enter Cooling Capacities table at condenser entering
temperature of 95 F. Unit 48FJE064 at 24,000 cfm
and 67 F ewb will provide a total capacity of 733,000
Btuh and a SHC of 566,000 Btuh. Calculate SHC correction, if required, using notes under cooling capacities tables.
III Select heating capacity of unit to provide design
condition requirement.
In the Heating Capacities table, note that unit 48FJE064
will provide 648,000 Btuh with an input of
810,000 Btuh.
IV Determine fan speed and power requirements
at design conditions.
Tabulated fan performance includes 2-in. throwaway
filters and wet evaporator coil. Refer to Component
Pressure Drops table for economizer pressure drop
(.19 in. wg). Add economizer pressure drop to the specified static pressure drop of 2.20 in. wg:
0.19 + 2.20 = 2.39 in. wg
Find fan rpm and bhp at 2.4 in. wg and 24,000 cfm
on 48FJE064 Fan Performance table. Note that the
fan speed is 675 rpm and the power required is
24.1 bhp. The 25.0 hp motor is required.
V Select unit that corresponds to power source
available.
The Electrical Data table shows that a 460-3-60 unit
is available.
Performance data
COOLING CAPACITIES
48FJ,FK,JJ,JK034
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
6000/0.03
72
371
176
29.9
356
170
32.3
349
167
33.5
342
164
34.8
326
158
37.2
318
155
38.4
67
339
209
28.6
326
203
30.9
319
200
32.0
313
197
33.2
299
191
35.4
292
187
36.6
62
311
242
27.5
299
235
29.6
292
233
30.6
286
229
31.6
273
223
33.8
267
219
34.8
72
385
189
30.5
370
182
32.9
362
179
34.2
354
176
35.4
338
169
37.8
329
166
39.1
Evaporator Air Quantity — Cfm/BF
7500/0.04
9000/0.05
Evaporator Air — Ewb (F)
67
62
72
67
355
325
400
369
229
269
201
249
29.2
28.0
31.1
29.9
340
311
383
353
223
261
194
243
31.6
30.2
33.5
32.2
333
305
374
346
219
258
191
239
32.7
31.2
34.8
33.4
325
277
366
338
217
255
188
235
33.8
32.4
36.1
34.5
310
266
349
322
210
247
181
229
36.2
34.4
38.6
36.8
302
261
340
314
206
243
178
225
37.3
35.5
39.8
38.0
VAV units only.
LEGEND
BF — Bypass Factor
kW — Compressor Motor Power Input
Edb — Entering Dry Bulb SHC — Sensible Heat Cap. (1000 Btuh)
Ewb — Entering Wet Bulb TC — Total Cap. (1000 Btuh) Gross
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
sensible capacity (Btuh)
tldb = t edb −
1.10 x cfm
tlwb = Wet-bulb temperature corresponding to enthalpy of
air leaving evaporator coil (hlwb ).
total capacity (Btuh)
hlwb = h ewb −
4.5 x cfm
Where: h ewb = Enthalpy of air entering evaporator coil.
10,500/0.06
62
339
295
28.6
325
287
30.8
317
283
31.9
310
279
33.0
296
271
35.2
288
267
36.2
72
415
213
31.6
397
206
34.1
388
203
35.5
379
200
36.7
361
193
39.3
351
190
40.6
67
384
269
30.5
367
261
32.9
358
259
34.0
350
255
35.2
333
248
37.6
324
244
38.8
62
353
321
29.2
338
313
31.5
330
309
32.6
322
305
33.7
307
297
35.9
299
291
37.0
3. SHC is based on 80 F edb temperature of air entering evaporator
coil.
Below 80 F edb, subtract (corr factor x cfm) from SHC.
Above 80 F edb, add (corr factor x cfm) to SHC.
BF
79
81
.05
.10
.20
1.04
.98
.87
ENTERING AIR DRY-BULB TEMP (F)
78
77
76
75
under 75
82
83
84
85
over 85
Correction Factor
2.07
3.11
4.14
5.18
Use formula
1.96
2.94
3.92
4.91
shown below.
1.74
2.62
3.49
4.36
Interpolation is permissible.
Correction Factor = 1.10 x (1 − BF) x (edb − 80).
4. Cooling capacities are gross and do not include deduction for indoor
fan motor heat.
27
Performance data (cont)
COOLING CAPACITIES (cont)
48FJ,FK,JJ,JK034 (cont)
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
12,000/0.07
72
423
224
32.0
404
217
34.5
395
214
35.9
386
210
37.1
367
204
39.6
357
200
41.0
67
392
287
30.8
374
279
33.2
366
277
34.4
357
273
35.6
339
265
38.0
330
261
39.2
62
361
343
29.5
346
334
31.8
338
329
33.0
330
324
34.1
314
312
36.4
306
306
37.5
Evaporator Air Quantity — Cfm/BF
13,500/0.08
Evaporator Air — Ewb (F)
72
67
62
429
398
368
235
303
359
32.2
31.1
29.8
410
380
353
227
295
347
34.8
33.5
32.2
400
370
345
224
293
341
36.1
34.7
33.3
391
362
338
220
289
335
37.4
35.9
34.5
371
344
322
214
281
321
40.0
38.3
36.9
361
335
315
210
277
315
41.2
39.4
38.1
15,000/0.09
72
435
245
32.4
415
237
35.1
405
234
36.3
395
230
37.7
375
224
40.2
365
220
41.5
67
404
320
31.3
386
312
33.7
376
309
34.9
366
305
36.1
348
297
38.5
339
293
39.8
62
374
374
30.0
360
360
32.5
353
353
33.7
346
346
34.9
331
331
37.5
323
323
38.7
48FJ,FK,JJ,JK038
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
7000/0.03
72
435
188
34.8
417
181
37.4
408
178
38.7
398
174
40.0
380
167
42.4
370
164
43.6
67
398
224
33.1
382
218
35.6
374
214
36.7
366
211
37.9
347
203
40.2
338
201
41.2
62
364
261
31.5
349
253
33.8
340
250
34.9
333
246
35.9
316
239
37.9
307
235
38.9
72
456
202
35.7
437
196
38.4
426
192
39.7
417
189
41.0
396
181
43.6
385
178
44.7
Evaporator Air Quantity — Cfm/BF
8750/0.04
10,500/0.04
Evaporator Air Quantity — Ewb (F)
67
62
72
67
420
386
472
435
248
293
215
271
34.1
32.6
36.5
34.9
402
368
449
416
242
284
209
262
36.6
34.8
39.2
37.3
393
359
439
405
237
281
205
259
37.8
35.9
40.5
38.6
382
349
429
396
233
277
202
255
39.0
37.0
41.8
39.8
364
331
407
376
226
269
194
248
41.3
39.1
44.4
42.2
354
323
396
365
222
264
191
243
42.5
40.1
45.6
43.3
48FJ,FK,JJ,JK038 (cont)
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
72
491
242
37.3
470
234
40.2
458
231
41.5
446
226
43.0
424
220
45.5
412
216
46.7
Evaporator Air Quantity — Cfm/BF
14,000/0.06
15,000/0.07
Evaporator Air — Ewb (F)
67
62
72
67
453
422
494
458
311
370
248
321
35.7
34.2
37.6
35.8
434
404
474
438
304
358
242
314
38.4
36.7
40.4
38.5
424
394
461
426
300
351
237
311
39.6
37.9
41.8
39.8
412
386
449
417
295
345
233
306
40.8
39.1
43.1
41.1
391
366
425
393
287
329
227
298
43.2
41.4
45.7
43.4
379
357
414
382
283
322
222
293
44.3
42.6
46.9
44.5
See Legend and Notes on page 27.
28
62
428
379
34.5
410
366
37.1
400
359
38.2
391
352
39.5
371
334
41.8
363
327
43.1
12,250/0.05
62
400
322
33.1
382
314
35.6
373
310
36.7
364
305
37.8
344
295
39.9
334
292
41.0
72
483
229
37.0
461
221
39.7
449
218
41.2
438
214
42.5
416
208
45.0
406
204
46.3
67
446
291
35.3
426
283
37.9
416
281
39.2
406
276
40.3
385
268
42.7
374
264
43.8
62
411
347
33.7
393
339
36.1
384
334
37.3
374
328
38.5
356
317
40.8
346
310
41.8
COOLING CAPACITIES (cont)
48FJ,FK,JJ,JK044
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
8000/0.06
72
496
235
38.1
474
226
40.9
463
222
42.3
451
217
43.8
427
207
46.4
416
202
47.7
67
452
279
36.4
431
269
39.0
420
264
40.2
410
259
41.6
388
249
44.0
377
245
45.2
62
412
321
34.7
392
311
37.0
381
305
38.2
371
300
39.4
351
290
41.6
340
284
42.6
72
517
253
38.9
493
243
41.8
481
237
43.2
469
233
44.7
444
223
47.3
431
218
48.7
Evaporator Air Quantity — Cfm/BF
10,000/0.07
12,000/0.08
Evaporator Air Quantity — Ewb (F)
67
62
72
67
473
431
538
494
305
356
269
332
37.2
35.5
39.6
38.0
451
410
512
469
295
344
259
322
39.8
38.0
42.6
40.7
439
398
500
457
290
340
254
316
41.2
39.2
44.1
42.1
428
388
487
445
285
334
250
311
42.5
40.4
45.6
43.5
404
366
460
420
274
322
239
300
45.0
42.6
48.3
45.9
392
355
446
407
270
316
234
295
46.2
43.6
49.7
47.2
14,000/0.10
62
451
391
36.3
427
379
38.8
416
373
40.0
405
367
41.2
382
353
43.6
370
347
44.7
72
559
286
40.4
532
276
43.5
519
270
45.1
505
266
46.5
477
256
49.3
462
250
50.6
67
514
358
38.8
488
347
41.6
475
342
43.0
463
337
44.4
436
326
46.9
422
320
48.2
62
469
425
37.0
445
413
39.6
434
407
40.9
422
400
42.2
398
386
44.5
384
378
45.7
48FJ,FK,JJ,JK044 (cont)
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
16,000/0.11
72
570
301
41.0
543
290
44.0
529
285
45.6
515
280
47.1
486
269
49.8
470
264
51.2
67
526
381
39.3
500
370
42.1
487
365
43.5
473
360
44.9
444
349
47.5
430
343
48.8
62
482
455
37.6
457
440
40.2
445
432
41.4
433
425
42.7
409
406
45.3
397
396
46.5
Evaporator Air Quantity — Cfm/BF
18,000/0.12
Evaporator Air — Ewb (F)
72
67
62
581
535
490
314
403
476
41.4
39.7
37.9
552
507
467
304
393
458
44.4
42.5
40.6
537
493
456
298
387
449
45.9
43.8
41.9
523
480
444
293
381
439
47.4
45.2
43.3
492
450
420
283
368
418
50.2
47.8
45.9
476
436
408
277
362
408
51.6
49.1
47.2
20,000/0.13
72
591
328
42.0
560
317
44.8
545
312
46.3
529
306
47.7
499
296
50.5
484
290
51.9
67
544
426
40.1
515
414
42.8
501
408
44.2
486
401
45.6
457
389
48.1
442
383
49.4
62
499
499
38.2
477
477
41.1
465
465
42.5
455
455
43.9
431
431
46.6
420
420
48.0
48FJ,FK,JJ,JK048
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
9000/0.02
72
556
248
47.1
531
239
50.2
518
233
51.9
506
228
53.4
481
219
56.5
467
213
57.9
67
511
296
44.7
489
285
47.8
477
281
49.3
465
276
50.8
441
266
53.6
429
260
55.0
62
468
343
42.5
446
332
45.3
436
327
46.8
426
322
48.1
403
311
50.7
391
306
51.9
72
583
267
48.4
557
256
51.8
543
251
53.4
529
246
55.0
501
236
58.0
486
231
59.5
Evaporator Air Quantity — Cfm/BF
11,250/0.03
13,500/0.05
Evaporator Air Quantity — Ewb (F)
67
62
72
67
539
494
601
560
326
383
283
354
46.2
43.9
49.3
47.3
514
471
574
532
315
372
272
343
49.2
46.9
52.8
50.3
501
460
559
519
310
367
267
338
50.9
48.2
54.3
51.9
489
449
543
506
305
361
262
332
52.3
49.6
55.9
53.4
463
425
514
478
295
350
252
321
55.2
52.3
59.0
56.3
449
412
499
463
289
344
246
315
56.6
53.6
60.5
57.7
15,750/0.06
62
514
420
44.9
490
409
47.9
478
403
49.3
465
397
50.7
439
385
53.4
426
377
54.8
72
617
299
50.1
588
269
53.6
572
284
55.1
556
277
56.7
525
268
59.8
507
261
61.2
67
573
379
47.9
546
369
51.1
531
363
52.6
517
358
54.2
489
347
57.1
474
341
58.6
62
531
455
45.7
505
443
48.7
492
435
50.2
479
430
51.7
453
414
54.5
439
406
55.8
See Legend and Notes on page 31.
29
Performance data (cont)
COOLING CAPACITIES (cont)
48FJ,FK,JJ,JK048 (cont)
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
72
627
314
50.7
596
303
54.0
581
298
55.7
565
292
57.2
532
280
60.3
515
274
61.7
Evaporator Air Quantity — Cfm/BF
18,000/0.07
20,000/0.08
Evaporator Air — Ewb (F)
67
62
72
67
583
543
634
592
405
485
327
425
48.5
46.4
51.0
48.8
556
517
604
563
394
471
315
414
51.7
49.5
54.3
52.1
541
504
588
549
387
463
310
408
53.3
51.0
56.0
53.7
526
491
572
533
382
454
304
402
54.7
52.5
57.7
55.2
496
464
538
501
370
434
292
390
57.7
55.3
60.6
58.0
481
453
521
486
364
424
286
383
59.1
56.8
62.1
59.4
62
553
508
46.9
526
490
50.0
513
479
51.5
500
468
53.0
475
445
56.2
463
433
57.7
48FJ,FK,JJ,JK054
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
10,000/0.03
72
594
285
47.5
570
274
51.1
557
269
52.9
544
264
54.5
517
253
57.8
509
248
59.9
67
543
339
45.4
521
329
48.7
510
324
50.4
497
320
52.0
473
308
54.9
467
302
56.8
62
496
397
43.5
475
385
46.5
464
379
48.0
453
373
49.4
429
362
52.1
424
357
53.8
72
625
306
48.8
598
294
52.5
585
289
54.2
571
284
56.0
541
273
59.4
525
267
60.9
Evaporator Air Quantity — Cfm/BF
12,500/0.04
15,000/0.05
Evaporator Air - Ewb (F)
67
62
72
67
574
526
647
596
372
438
326
406
46.7
44.7
49.6
47.6
549
502
619
570
362
425
315
394
50.1
47.9
53.4
51.1
536
491
604
556
356
419
310
387
51.7
49.4
55.3
52.8
524
478
589
542
351
414
304
382
53.5
50.9
57.0
54.4
496
454
556
513
339
401
292
370
56.5
53.7
60.3
57.5
482
441
542
498
333
394
286
364
57.9
55.1
62.1
59.1
17,500/0.06
62
548
480
45.6
523
467
48.9
512
461
50.5
498
454
51.9
472
438
54.9
458
431
56.3
48FJ,FK,JJ,JK054 (cont)
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
20,000/0.07
72
676
362
50.8
644
350
54.5
630
345
56.4
614
339
58.3
580
327
61.8
563
321
63.4
See Legend and Notes on page 31.
30
67
625
464
48.8
596
452
52.3
581
446
54.0
566
440
55.8
535
426
59.1
519
419
60.6
62
581
553
46.9
555
534
50.4
541
524
52.0
529
515
53.8
502
494
56.9
488
483
58.4
Evaporator Air Quantity — Cfm/BF
22,500/0.08
Evaporator Air —Ewb (F)
72
67
62
685
635
594
379
491
577
51.1
49.1
47.5
655
605
568
368
478
556
55.0
52.8
51.0
638
590
555
362
473
545
56.9
54.5
52.7
622
575
541
356
466
534
58.7
56.3
54.3
587
543
514
343
451
510
62.2
59.4
57.6
569
527
500
337
445
498
63.8
61.0
59.2
25,000/0.08
72
693
395
51.4
661
384
55.3
644
379
57.3
628
372
59.0
592
359
62.5
575
354
64.3
67
643
519
49.5
613
505
53.2
598
498
54.9
582
491
56.5
550
476
59.9
533
469
61.5
62
607
601
48.0
581
578
51.7
567
565
53.2
554
553
55.1
526
526
58.4
513
513
60.0
72
663
344
50.3
634
333
54.1
618
328
55.9
602
321
57.7
570
310
61.2
552
303
62.7
67
613
435
48.3
584
423
51.8
571
417
53.6
555
411
55.1
527
398
58.4
508
392
59.8
62
566
516
46.4
539
500
49.6
527
492
51.3
513
484
52.9
487
467
55.9
474
457
57.4
COOLING CAPACITIES (cont)
48FJ,FK,JJ,JK064
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
12,000/0.03
72
731
353
59.6
703
340
63.9
689
334
66.0
674
327
68.1
641
314
72.0
629
308
74.4
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
67
670
421
56.9
644
409
60.8
630
402
62.9
616
395
64.6
587
382
68.3
575
375
70.5
62
613
488
54.3
588
474
57.9
575
468
59.7
561
461
61.4
534
447
64.5
524
440
66.6
72
769
378
61.3
738
365
65.7
720
358
67.7
704
352
69.9
669
339
74.0
649
332
75.9
Evaporator Air Quantity — Cfm/BF
15,000/0.04
18,000/0.04
Evaporator Air — Ewb (F)
67
62
72
67
707
647
793
733
462
542
403
503
58.5
55.9
62.2
59.7
678
621
761
702
449
527
390
448
62.7
59.6
66.9
63.9
663
607
745
684
442
520
383
482
64.6
61.5
69.1
65.8
647
592
727
668
435
512
376
475
66.6
63.2
71.3
67.7
616
563
691
635
421
496
363
461
70.2
66.6
75.2
71.6
595
546
669
615
415
488
356
454
71.9
68.2
77.4
73.5
21,000/0.05
62
674
597
57.1
645
580
60.9
630
572
62.8
616
563
64.6
585
546
68.2
568
536
69.9
72
811
429
63.1
778
415
67.8
761
408
70.0
743
400
72.1
704
387
76.3
688
381
78.8
67
751
543
60.4
719
529
64.8
702
522
66.7
685
515
68.7
650
500
72.6
635
493
75.0
62
694
650
57.9
666
633
62.0
649
624
63.8
633
615
65.7
603
595
69.3
590
584
71.6
48FJ,FK,JJ,JK064 (cont)
Temp (F)
Air Entering
Condenser
85
95
100
105
115
120
24,000/0.06
72
825
450
63.7
791
437
68.4
772
429
70.6
754
423
72.8
714
409
76.9
698
403
79.6
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
67
764
580
61.0
733
566
65.4
713
558
67.4
697
551
69.5
661
535
73.3
646
529
75.8
62
710
695
58.7
681
672
62.7
665
661
64.8
651
650
66.7
622
622
70.4
608
608
73.0
Evaporator Air Quantity — Cfm/BF
27,000/0.07
Evaporator Air — Ewb (F)
72
67
62
840
778
728
472
614
722
64.3
61.6
59.4
802
744
697
458
599
695
69.0
66.0
63.6
781
726
683
451
591
682
71.1
68.1
65.7
763
708
669
444
584
669
73.3
70.1
67.7
724
671
640
430
568
640
77.5
74.0
71.7
706
654
624
424
560
624
80.1
76.4
74.1
VAV units only.
LEGEND
BF — Bypass Factor
kW — Compressor Motor Power Input
Edb — Entering Dry Bulb SHC — Sensible Heat Cap. (1000 Btuh)
Ewb — Entering Wet Bulb TC — Total Cap. (1000 Btuh) Gross
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
sensible capacity (Btuh)
tldb = t edb −
1.10 x cfm
tlwb = Wet-bulb temperature corresponding to enthalpy of
air leaving evaporator coil (hlwb ).
hlwb = h ewb −
total capacity (Btuh)
4.5 x cfm
Where: h ewb = Enthalpy of air entering evaporator coil.
30,000/0.08
72
848
493
64.6
811
480
69.4
790
473
71.6
771
466
73.8
732
451
78.0
713
445
80.7
67
787
647
61.9
752
632
66.4
734
624
68.5
716
617
70.6
680
600
74.6
662
591
77.0
62
749
749
60.1
719
719
64.5
703
703
66.6
687
687
68.8
656
656
72.7
641
641
75.3
3. SHC is based on 80 F edb temperature of air entering evaporator
coil.
Below 80 F edb, subtract (corr factor x cfm) from SHC.
Above 80 F edb, add (corr factor x cfm) to SHC.
BF
79
81
.05
.10
.20
1.04
.98
.87
ENTERING AIR DRY-BULB TEMP (F)
78
77
76
75
under 75
82
83
84
85
over 85
Correction Factor
2.07
3.11
4.14
5.18
Use formula
1.96
2.94
3.92
4.91
shown below.
1.74
2.62
3.49
4.36
Interpolation is permissible.
Correction Factor = 1.10 x (1 − BF) x (edb − 80).
4. Cooling capacities are gross and do not include deduction for indoor
fan motor heat.
31
Performance data (cont)
48FJ,FK074
Temp (F)
Air Entering
Condenser
85
95
100
105
115
14,000/0.05
72
862
406
70.9
830
393
75.7
811
386
77.8
793
377
80.1
754
363
84.5
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
67
789
485
67.5
760
472
71.8
744
465
73.9
728
457
76.1
695
443
80.3
62
721
565
64.1
691
551
68.1
676
544
70.0
662
537
71.9
633
524
75.8
72
890
435
72.2
855
421
77.0
835
413
79.3
816
406
81.5
776
391
86.1
Evaporator Air Quantity — Cfm/BF
17,500/0.06
21,000/0.07
Evaporator Air — Ewb (F)
67
62
72
67
816
747
917
843
531
624
463
577
68.8
65.4
73.6
70.0
785
718
879
809
517
609
449
562
73.1
69.5
78.3
74.5
767
701
859
790
510
601
441
554
75.3
71.4
80.6
76.6
750
686
839
773
502
594
434
547
77.4
73.5
83.0
78.9
716
655
799
736
487
579
419
532
81.7
77.4
87.5
83.1
24,500/0.08
62
775
684
66.8
743
667
70.9
726
658
72.9
711
649
75.0
678
632
79.0
72
944
492
74.9
903
477
79.6
882
470
82.0
863
462
84.4
821
447
89.1
67
870
622
71.4
833
607
75.8
814
600
78.1
795
592
80.2
758
577
84.5
62
801
742
68.1
769
725
72.3
752
715
74.4
734
705
76.5
700
684
80.7
48FJ,FK074 (cont)
Temp (F)
Air Entering
Condenser
85
95
100
105
115
72
997
539
77.1
952
524
81.9
931
516
84.3
908
508
86.8
864
493
91.7
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
TC
SHC
kW
Evaporator Air Quantity — Cfm/BF
28,000/0.09
30,000/0.09
Evaporator Air — Ewb (F)
67
62
72
67
919
854
1005
926
692
827
554
717
73.6
70.5
77.5
73.9
879
818
960
887
676
805
539
700
78.1
74.9
82.4
78.6
858
800
937
864
668
792
532
692
80.4
77.1
84.8
80.8
836
782
915
843
659
779
523
683
82.6
79.3
87.3
83.0
793
746
870
799
642
746
509
666
87.0
83.7
92.0
87.5
62
865
853
71.0
829
825
75.5
811
809
77.7
794
794
80.0
760
760
84.5
See Legend and Notes on page 31.
FAN PERFORMANCE — 48FJD,FKD,FJK,FKK,JJD,JKD,JJK,JKK034 LOW HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
034
6,000
7,500
9,000
10,500
12,000
13,500
15,000
UNIT
SIZE
AIRFLOW
(Cfm)
034
6,000
7,500
9,000
10,500
12,000
13,500
15,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
300
330
360
400
450
500
550
340
370
400
430
480
520
570
370
400
420
460
500
540
600
410
430
460
490
530
570
620
540
570
590
620
640
670
700
570
500
620
650
670
700
730
600
620
640
670
700
720
760
1.0
1.5
2.3
3.2
4.7
6.3
8.2
1.7
2.1
3.0
4.0
5.6
7.2
9.3
2.0
2.4
3.5
4.6
6.1
7.8
10.0
450
470
500
520
560
600
640
2.3
2.8
4.0
5.0
6.7
8.4
10.6
480
510
530
560
590
620
660
2.7
3.4
4.5
5.5
7.3
9.0
11.3
520
540
560
590
620
650
680
3.1
3.9
5.0
6.2
8.0
9.7
12.2
3.5
4.4
5.6
7.0
8.6
10.5
13.0
3.9
5.0
6.1
7.7
9.3
11.4
13.9
4.4
5.5
6.6
8.2
10.1
12.2
15.0
2.2
Rpm Bhp
2.4
Rpm Bhp
2.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.8
3.0
3.2
3.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.6
Rpm Bhp
3.8
Rpm Bhp
4.0
Rpm Bhp
630
650
660
700
720
740
780
650
680
690
720
740
760
800
670
700
710
740
760
780
820
700
720
740
760
780
800
840
780
800
820
840
860
880
—
800
820
840
860
880
900
—
820
840
860
880
900
—
—
5.0
6.0
7.0
9.0
10.7
13.0
16.0
See Legend and Notes on page 34.
32
1.3
1.8
2.7
3.6
5.2
6.7
8.7
5.5
6.5
7.6
9.6
11.4
13.7
16.9
5.9
7.2
8.2
10.4
12.0
14.3
17.6
6.5
7.8
8.9
11.0
12.8
15.0
18.6
720
740
760
780
800
820
860
7.0
8.5
9.6
11.6
13.5
15.7
19.4
740
760
780
800
820
840
880
7.5
9.1
10.3
12.1
14.2
16.7
20.4
760
780
800
820
840
860
900
8.0
9.5
11.1
12.8
15.0
17.6
21.1
8.6
10.0
11.7
13.6
15.7
18.5
—
9.1
10.6
12.4
14.3
16.5
19.2
—
9.6
11.2
13.1
15.1
17.4
—
—
FAN PERFORMANCE — 48FJD,FKD,FJK,FKK,JJD,JKD,JJK,JKK038 LOW HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
038
7,000
8,000
10,000
12,000
14,000
15,000
UNIT
SIZE
AIRFLOW
(Cfm)
038
7,000
8.000
10,000
12,000
14,000
15,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
312
343
408
476
546
581
357
385
444
507
572
606
399
423
477
536
598
630
437
459
508
564
623
654
565
581
620
665
715
742
593
608
645
688
736
762
620
634
669
710
757
782
1.2
1.7
3.2
5.2
8.1
9.8
1.6
2.1
3.6
5.7
8.7
10.5
1.9
2.5
4.1
6.3
9.3
11.1
2.3
2.9
4.6
6.9
9.9
11.8
472
492
538
590
647
677
2.7
3.4
5.1
7.4
10.6
12.5
505
523
566
616
670
699
3.2
3.8
5.6
8.0
11.3
13.2
536
553
593
641
693
721
3.6
4.3
6.1
8.6
11.9
13.9
4.1
4.8
6.7
9.2
12.6
14.6
4.6
5.3
7.2
9.8
13.3
15.4
5.1
5.9
7.8
10.5
14.0
16.1
2.2
Rpm Bhp
2.4
Rpm Bhp
2.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.8
3.0
3.2
3.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.6
Rpm Bhp
3.8
Rpm Bhp
4.0
Rpm Bhp
646
660
692
732
778
802
671
684
715
754
798
821
695
707
737
774
817
840
719
730
759
795
836
859
806
816
840
872
—
—
826
836
860
890
—
—
846
855
878
—
—
—
5.7
6.4
8.4
11.2
14.8
16.9
6.2
7.0
9.1
11.9
15.5
17.6
6.8
7.6
9.7
12.5
16.2
18.4
7.4
8.2
10.4
13.2
17.0
19.2
741
752
780
815
855
877
8.0
8.8
11.0
14.0
17.8
20.0
764
774
801
834
873
895
8.7
9.5
11.7
14.7
18.6
20.9
785
795
821
853
891
—
9.3
10.2
12.4
15.4
19.4
—
10.0
10.9
13.1
16.2
—
—
10.7
11.6
13.9
17.0
—
—
11.4
12.3
14.6
—
—
—
FAN PERFORMANCE — 48FJD,FKD,FJK,FKK,JJD,JKD,JJK,JKK044 LOW HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
044
8,000
10,000
12,000
14,000
16,000
18,000
20,000
UNIT
SIZE
AIRFLOW
(Cfm)
044
8,000
10,000
12,000
14,000
16,000
18,000
20,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
340
370
410
490
550
620
660
380
410
460
520
570
640
700
410
440
500
550
600
660
720
440
470
520
570
620
680
740
580
600
630
670
720
760
820
600
630
660
700
740
780
830
630
660
690
720
760
800
—
1.5
2.5
3.8
6.5
8.8
12.8
16.8
2.2
3.0
4.6
7.2
9.5
13.5
18.3
2.4
3.4
5.4
7.7
10.5
14.5
19.3
2.6
3.7
6.0
8.2
11.3
15.2
20.1
480
510
550
600
650
700
760
2.9
4.4
6.5
8.8
12.1
16.0
20.9
510
540
570
620
670
720
780
3.4
5.0
7.0
9.6
12.8
16.8
21.8
550
570
600
650
700
740
800
4.0
5.5
7.5
10.5
13.5
17.6
22.5
4.6
6.2
8.1
11.2
14.5
18.4
23.2
5.1
6.9
8.8
12.0
15.2
19.2
24.0
5.7
7.5
9.7
12.6
16.1
20.0
—
2.2
Rpm Bhp
2.4
Rpm Bhp
2.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.8
3.0
3.2
3.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.6
Rpm Bhp
3.8
Rpm Bhp
4.0
Rpm Bhp
650
680
710
740
780
820
—
670
700
730
760
800
840
—
700
730
760
790
820
860
—
720
750
780
810
840
880
—
810
830
860
890
920
—
—
830
850
880
910
930
—
—
850
870
900
940
950
—
—
6.3
8.0
10.4
13.2
17.0
21.0
—
6.7
8.5
11.1
14.0
17.7
22.0
—
7.3
9.2
11.8
15.0
18.3
23.0
—
7.7
10.0
12.6
16.0
19.2
24.0
—
740
770
800
830
860
—
—
8.2
10.7
13.1
17.0
20.3
—
—
760
790
820
850
880
—
—
8.7
11.4
14.0
17.7
21.3
—
—
780
810
840
870
900
—
—
9.4
12.2
14.8
18.4
22.2
—
—
10.4
12.8
15.7
19.0
23.1
—
—
11.2
13.5
16.5
20.3
23.8
—
—
12.0
14.0
17.1
21.3
24.5
—
—
FAN PERFORMANCE — 48FJD,FKD,FJK,FKK,JJD,JKD,JJK,JKK048 LOW HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
048
9,000
10,000
12,000
14,000
16,000
18,000
20,000
UNIT
SIZE
AIRFLOW
(Cfm)
048
9,000
10,000
12,000
14,000
16,000
18,000
20,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
344
373
433
495
557
621
685
386
412
466
524
583
644
706
425
448
498
552
608
666
726
461
482
528
579
632
688
746
590
604
638
679
724
772
823
618
632
664
702
745
792
842
646
658
689
725
766
812
860
1.9
2.5
4.1
6.2
9.1
12.7
17.2
2.3
3.0
4.6
6.9
9.8
13.5
18.1
2.8
3.5
5.2
7.5
10.5
14.3
19.0
3.3
4.0
5.8
8.2
11.3
15.2
19.9
496
515
557
605
656
710
766
3.7
4.5
6.4
8.9
12.0
16.0
20.8
528
546
585
630
679
731
786
4.3
5.0
7.0
9.5
12.8
16.8
21.8
560
575
612
655
702
752
805
4.8
5.6
7.6
10.3
13.6
17.7
22.7
5.4
6.2
8.3
11.0
14.4
18.6
23.7
5.9
6.8
9.0
11.7
15.2
19.5
24.6
6.5
7.4
9.6
12.5
16.0
20.3
25.6
2.2
Rpm Bhp
2.4
Rpm Bhp
2.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.8
3.0
3.2
3.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.6
Rpm Bhp
3.8
Rpm Bhp
4.0
Rpm Bhp
673
684
713
747
787
831
878
699
709
736
769
807
850
896
724
734
759
790
827
869
—
749
758
781
811
847
887
—
841
847
866
891
—
—
—
862
868
886
—
—
—
—
884
889
—
—
—
—
—
7.2
8.1
10.3
13.2
16.8
21.3
26.6
7.8
8.7
11.1
14.0
17.7
22.2
27.6
8.5
9.4
11.8
14.8
18.6
23.1
—
9.1
10.1
12.5
15.6
19.4
24.1
—
772
781
803
832
866
—
—
9.8
10.8
13.3
16.4
20.3
—
—
796
803
824
852
885
—
—
10.5
11.6
14.1
17.3
21.2
—
—
818
826
845
872
—
—
—
11.3
12.3
14.9
18.1
—
—
—
12.0
13.1
15.7
19.0
—
—
—
12.8
13.9
16.5
—
—
—
—
13.5
14.7
—
—
—
—
—
See Legend and Notes on page 34.
33
Performance data (cont)
FAN PERFORMANCE — 48FJD,FKD,FJK,FKK,JJD,JKD,JJK,JKK054 LOW HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
054
10,000
12,500
15,000
17,500
20,000
22,500
25,000
UNIT
SIZE
AIRFLOW
(Cfm)
054
10,000
12,500
15,000
17,500
20,000
22,500
25,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
250
280
300
340
375
410
450
280
300
330
360
400
430
470
310
330
360
390
425
460
490
350
370
390
420
450
480
515
500
490
505
520
540
570
600
525
520
525
540
560
590
620
550
550
550
560
580
610
635
2.0
2.6
3.1
4.6
6.4
8.8
12.1
2.3
3.0
3.6
5.2
7.2
9.6
13.0
2.7
3.3
4.2
5.8
8.2
10.8
14.0
3.2
4.0
4.8
6.6
9.0
11.6
15.0
410
400
420
445
475
500
540
4.6
4.6
5.6
7.4
9.7
12.4
16.6
450
430
450
470
495
525
560
5.6
5.7
6.4
8.2
10.4
13.6
17.6
475
460
470
495
520
550
580
6.4
6.5
7.0
9.0
11.4
14.8
18.8
7.1
7.2
8.4
10.0
12.4
15.8
20.0
8.3
8.4
9.2
11.0
13.4
17.2
21.2
9.6
9.8
10.2
11.8
14.8
18.4
22.2
2.2
Rpm Bhp
2.4
Rpm Bhp
2.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.8
3.0
3.2
3.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.6
Rpm Bhp
3.8
Rpm Bhp
4.0
Rpm Bhp
580
570
570
580
600
625
650
610
600
600
600
620
640
665
625
620
620
620
635
660
680
640
640
650
670
660
680
700
710
720
720
730
730
745
—
730
730
740
750
—
—
—
750
750
—
—
—
—
—
11.1
11.2
11.4
13.0
15.8
19.4
23.5
12.6
12.8
13.0
14.0
16.8
20.4
24.6
13.8
14.0
14.2
15.0
17.8
21.6
25.8
15.0
15.2
15.4
17.0
19.4
23.0
27.2
660
660
660
670
680
695
720
16.5
16.8
17.0
18.2
20.8
24.2
28.6
670
680
680
690
695
715
730
17.8
18.6
18.8
19.8
21.8
25.8
29.8
695
700
700
710
720
730
750
19.0
19.6
19.8
21.4
23.2
26.8
31.6
20.2
20.8
21.0
22.8
24.8
28.4
—
21.8
22.4
22.8
24.2
—
—
—
23.4
23.8
—
—
—
—
—
FAN PERFORMANCE — 48FJD,FKD,FJK,FKK,JJD,JKD,JJK,JKK064 LOW HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
064
12,000
15,000
18,000
21,000
24,000
27,000
30,000
UNIT
SIZE
AIRFLOW
(Cfm)
064
12,000
15,000
18,000
21,000
24,000
27,000
30,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
270
300
350
395
440
480
530
300
340
380
420
465
510
555
330
360
410
445
485
530
570
360
395
430
470
510
550
595
520
500
525
555
590
630
660
555
525
550
575
610
645
675
575
550
570
595
630
660
695
2.4
3.2
5.0
7.6
10.8
15.0
20.8
2.8
3.8
5.8
8.2
12.0
16.6
22.4
3.4
4.4
6.6
9.4
12.8
17.8
23.8
395
420
455
490
530
570
610
4.4
5.6
8.0
11.0
14.8
20.2
26.2
430
445
480
515
550
590
630
5.2
6.2
8.8
12.0
16.0
21.4
27.6
475
470
505
535
570
610
645
6.6
7.0
9.8
12.8
17.0
22.6
28.6
8.2
8.0
10.5
14.0
18.6
24.2
29.8
10.0
9.2
11.7
15.0
19.8
25.2
30.8
2.2
Rpm Bhp
2.4
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6
2.8
3.0
3.2
3.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.6
Rpm Bhp
3.8
Rpm Bhp
590
580
590
615
645
680
710
620
610
610
635
660
695
725
635
630
630
650
680
710
—
730
730
740
740
—
—
—
750
750
—
—
—
—
—
11.8
12.0
13.8
17.4
22.1
27.8
33.6
13.3
13.4
15.0
18.6
23.2
29.0
34.7
14.6
14.8
16.2
19.8
24.8
30.0
—
LEGEND
VAV units only.
Bhp — Brake Horsepower
NOTES:
1. Fan peformance is based on set coils and clean 2-in. filters.
34
3.8
5.0
7.2
10.2
14.0
19.0
25.0
650
650
650
670
695
730
—
15.8
16.2
17.4
20.8
25.8
31.8
—
675
670
670
685
715
745
—
17.6
17.8
18.7
21.8
27.0
33.6
—
695
690
700
705
735
—
—
19.0
19.2
20.6
23.4
28.6
—
—
710
710
720
725
750
—
—
20.2
20.8
21.8
24.6
30.4
—
—
21.8
22.2
23.6
26.2
—
—
—
11.0
10.3
12.6
16.2
21.2
26.2
32.4
23.2
23.8
—
—
—
—
—
2. See Component Pressure Drops table before using Fan Performance tables.
3. Conversion − Bhp to kW:
Bhp x .746
Kilowatts = Motor efficiency
See Physical Data table for motor efficiency.
FAN PERFORMANCE — 48FJD,FKD,FJK,FKK074 LOW HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
074
14,000
17,500
21,000
24,500
28,000
30,000
UNIT
SIZE
AIRFLOW
(Cfm)
074
14,000
17,500
21,000
24,500
28,000
30,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
290
350
395
450
505
530
320
370
420
470
525
555
350
400
445
490
550
570
360
425
470
520
570
595
490
520
555
600
635
660
535
540
575
615
655
675
570
560
595
635
670
695
3.0
4.8
7.6
11.8
17.2
20.8
3.4
5.4
8.2
12.4
18.2
22.4
3.8
6.2
9.4
13.4
20.0
23.8
4.6
6.8
10.2
14.6
21.0
25.0
410
450
490
535
585
610
5.2
7.6
11.0
15.4
22.0
26.2
440
475
515
555
605
630
5.8
8.4
12.0
16.8
23.6
27.6
465
500
535
580
620
645
6.6
9.4
12.8
18.4
24.4
28.6
7.4
10.0
14.0
19.6
25.4
29.8
2.2
Rpm Bhp
2.4
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6
2.8
3.0
3.2
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.4
Rpm Bhp
3.6
Rpm Bhp
590
580
615
650
690
710
610
595
635
670
705
725
630
630
650
685
730
—
710
720
725
750
—
—
730
740
740
—
—
—
12.0
13.0
17.4
23.0
29.4
33.6
13.2
13.8
18.6
24.2
30.8
34.7
14.8
15.8
19.8
25.4
33.0
—
650
650
670
700
740
—
16.0
17.0
20.8
26.6
34.2
—
670
680
685
720
750
—
17.2
19.0
21.8
28.0
35.4
—
690
700
705
735
—
—
18.8
20.4
23.4
29.2
—
—
20.6
21.6
24.6
31.0
—
—
9.2
10.8
15.0
20.5
27.0
30.8
11.2
11.8
16.2
21.8
28.0
32.4
22.2
23.4
26.2
—
—
—
FAN PERFORMANCE — 48FJE,FKE,FJL,FKL,JJE,JKE,JJL,JKL034 HIGH HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
034
6,000
7,500
9,000
10,500
12,000
13,500
15,000
UNIT
SIZE
AIRFLOW
(Cfm)
034
6,000
7,500
9,000
10,500
12,000
13,500
15,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
295
320
370
400
460
500
560
340
360
400
440
480
530
580
385
395
430
470
520
560
610
425
435
470
500
550
590
630
565
570
600
620
650
680
720
595
600
620
650
680
710
740
625
625
650
670
700
730
760
1.1
1.6
2.3
3.2
5.0
6.3
8.5
1.5
2.1
2.5
3.7
5.2
7.0
8.9
1.9
2.6
2.8
4.1
5.6
7.5
9.5
2.4
3.0
3.4
4.6
6.3
8.2
10.5
460
470
500
530
570
610
650
2.8
3.5
3.9
5.1
6.9
8.8
11.1
495
505
530
570
600
630
680
3.3
4.0
4.5
5.8
7.5
9.4
12.0
530
535
570
600
630
660
700
3.8
4.5
5.0
6.5
8.2
10.1
12.8
4.3
5.0
5.7
7.1
8.8
11.0
13.5
4.8
5.5
6.3
7.8
9.6
11.8
14.2
5.3
6.0
6.7
8.4
10.2
12.7
15.0
2.2
Rpm Bhp
2.4
Rpm Bhp
2.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.8
3.0
3.2
3.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.6
Rpm Bhp
3.8
Rpm Bhp
4.0
Rpm Bhp
650
655
670
700
730
750
780
675
680
700
720
750
770
800
695
705
720
740
770
800
820
715
725
750
770
790
820
840
780
805
840
850
870
900
—
790
820
860
870
890
—
—
795
835
880
890
900
—
—
5.8
6.5
7.2
9.0
11.0
13.3
15.8
6.4
7.0
8.0
9.6
11.7
13.8
16.6
6.9
7.5
8.6
10.2
12.4
15.0
17.5
7.5
8.1
9.2
10.9
13.1
15.8
18.5
735
750
770
790
810
840
860
8.1
8.6
10.0
11.7
13.8
16.4
19.2
750
770
790
810
830
860
880
8.7
9.2
10.8
12.3
14.6
17.1
20.2
765
790
810
830
850
880
900
9.3
9.7
11.4
13.2
15.5
18.0
21.3
9.9
10.3
12.3
13.8
16.1
19.0
—
10.5
10.9
13.0
14.5
17.0
—
—
11.2
11.4
14.0
15.3
17.5
—
—
FAN PERFORMANCE — 48FJE,FKE,FJL,FKL,JJE,JKE,JJL,JKL038 HIGH HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
038
7,000
8,000
10,000
12,000
14,000
15,000
UNIT
SIZE
AIRFLOW
(Cfm)
038
7,000
8,000
10,000
12,000
14,000
15,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
325
361
436
513
591
631
363
395
464
536
611
649
400
428
491
559
631
668
436
460
517
581
651
686
568
580
619
669
727
758
599
609
643
690
745
776
629
637
667
711
764
793
1.1
1.6
3.1
5.4
8.6
10.7
1.4
1.9
3.5
5.8
9.2
11.3
1.7
2.2
3.9
6.3
9.7
11.8
2.0
2.6
4.3
6.8
10.2
12.4
470
491
543
604
670
704
2.4
3.0
4.7
7.3
10.8
13.0
504
522
569
626
689
722
2.8
3.4
5.2
7.8
11.4
13.7
536
551
594
647
708
740
3.3
3.9
5.7
8.3
12.0
14.3
3.8
4.4
6.2
8.9
12.7
15.0
4.4
5.0
6.8
9.5
13.3
15.7
5.0
5.6
7.4
10.1
14.0
16.4
2.2
Rpm Bhp
2.4
Rpm Bhp
2.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.8
3.0
3.2
3.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.6
Rpm Bhp
3.8
Rpm Bhp
4.0
Rpm Bhp
658
664
691
732
782
810
687
691
714
752
800
827
715
717
737
772
818
844
743
743
760
792
836
861
848
842
847
871
—
—
874
866
869
890
—
—
898
890
890
—
—
—
5.6
6.2
8.0
10.8
14.7
17.1
6.3
6.9
8.7
11.5
15.4
17.8
7.1
7.6
9.4
12.2
16.2
18.6
7.9
8.3
10.1
12.9
16.9
19.4
770
768
782
812
854
878
8.7
9.1
10.8
13.7
17.7
20.2
797
793
804
832
872
895
9.6
10.0
11.6
14.5
18.5
21.0
823
818
826
851
889
—
10.6
10.9
12.5
15.3
19.4
—
11.6
11.8
13.3
16.1
—
—
12.6
12.8
14.2
17.0
—
—
13.8
13.8
15.2
—
—
—
35
Performance data (cont)
FAN PERFORMANCE — 48FJE,FKE,FJL,FKL,JJE,JKE,JJL,JKL044 HIGH HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
044
8,000
10,000
12,000
14,000
16,000
18,000
20,000
UNIT
SIZE
AIRFLOW
(Cfm)
044
8,000
10,000
12,000
14,000
16,000
18,000
20,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
275
350
430
500
570
640
700
320
390
470
540
600
660
720
365
430
500
570
630
680
740
410
470
540
590
650
700
760
560
605
650
690
740
780
—
595
635
670
710
760
800
—
625
660
700
730
780
820
—
1.1
2.5
4.0
6.8
9.8
13.3
18.2
1.6
3.1
5.0
7.5
10.5
14.3
19.3
2.0
3.7
5.6
8.1
11.5
15.2
20.0
2.4
4.3
6.2
8.6
12.0
16.1
21.0
450
505
570
610
670
720
780
2.9
4.8
6.8
9.1
12.6
17.0
21.9
490
540
590
640
690
740
800
3.3
5.4
7.3
9.8
13.3
17.6
22.5
525
575
620
660
710
760
820
3.7
5.9
7.9
10.6
14.0
18.3
23.5
4.2
6.4
8.6
11.5
15.1
18.9
—
4.6
6.9
9.2
12.3
16.2
19.7
—
5.0
7.4
9.9
13.0
17.2
20.2
—
2.2
Rpm Bhp
2.4
Rpm Bhp
2.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.8
3.0
3.2
3.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.6
Rpm Bhp
3.8
Rpm Bhp
4.0
Rpm Bhp
650
690
720
760
800
840
—
675
715
750
780
820
860
—
700
735
770
800
840
880
—
720
755
790
820
860
—
—
785
825
870
900
—
—
—
795
835
880
—
—
—
—
805
845
900
—
—
—
—
5.4
7.9
10.7
13.8
18.0
22.0
—
5.8
8.4
11.5
14.5
18.7
23.0
—
6.2
8.9
12.3
15.1
19.4
24.0
—
6.6
9.4
13.0
16.0
20.3
—
—
740
775
810
840
880
—
—
7.0
9.8
13.7
16.8
21.8
—
—
760
795
830
860
900
—
—
7.4
10.3
14.4
17.5
22.5
—
—
775
810
850
880
—
—
—
7.8
10.7
15.0
18.2
—
—
—
8.2
11.1
15.8
19.2
—
—
—
8.6
11.6
16.5
—
—
—
—
8.9
12.0
17.2
—
—
—
—
FAN PERFORMANCE — 48FJE,FKE,FJL,FKL,JJE,JKE,JJL,JKL048 HIGH HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
048
9,000
10,000
12,000
14,000
16,000
18,000
20,000
UNIT
SIZE
AIRFLOW
(Cfm)
048
9,000
10,000
12,000
14,000
16,000
18,000
20,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
356
385
446
508
572
636
701
400
427
482
540
601
662
725
440
464
516
571
628
687
748
476
498
547
599
654
711
770
597
616
657
701
749
800
853
623
642
681
725
771
821
872
649
666
705
747
792
841
891
2.0
2.6
4.2
6.4
9.2
12.9
17.4
2.5
3.2
4.9
7.2
10.2
13.9
18.6
3.0
3.7
5.6
8.0
11.1
14.9
19.7
3.5
4.3
6.2
8.8
12.0
16.0
20.8
4.0
4.9
6.9
9.6
12.9
17.0
22.0
540
560
605
653
704
757
813
4.6
5.5
7.6
10.4
13.8
18.0
23.1
569
589
631
677
727
779
833
5.1
6.0
8.3
11.2
14.7
19.0
24.2
5.6
6.6
9.0
11.9
15.6
20.0
25.4
6.1
7.2
9.7
12.7
16.5
21.1
26.5
6.7
7.8
10.4
13.5
17.4
22.1
27.6
2.2
Rpm Bhp
2.4
Rpm Bhp
2.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.8
3.0
3.2
3.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.6
Rpm Bhp
3.8
Rpm Bhp
4.0
Rpm Bhp
673
690
727
768
813
860
—
696
713
749
789
833
879
—
719
735
771
810
852
898
—
741
757
791
830
871
—
—
823
837
869
—
—
—
—
842
856
887
—
—
—
—
860
874
—
—
—
—
—
7.2
8.4
11.1
14.3
18.3
23.1
—
7.8
9.0
11.7
15.1
19.2
24.1
—
8.3
9.5
12.4
16.0
20.2
25.2
—
8.8
10.1
13.1
16.8
21.1
—
—
LEGEND
VAV units only.
Bhp — Brake Horsepower
NOTES:
1. Fan peformance is based on set coils and clean 2-in. filters.
2. See Component Pressure Drops table before using Fan Performance tables.
36
509
530
577
627
679
735
792
762
778
812
849
890
—
—
9.4
10.7
13.9
17.6
22.0
—
—
783
798
831
868
—
—
—
10.0
11.4
14.6
18.4
—
—
—
803
818
850
887
—
—
—
10.5
12.0
15.3
19.2
—
—
—
11.1
12.6
16.0
—
—
—
—
3. Conversion − Bhp to kW:
Bhp x .746
Kilowatts = Motor efficiency
See Physical Data table for motor efficiency.
11.6
13.2
16.7
—
—
—
—
12.2
13.8
—
—
—
—
—
FAN PERFORMANCE — 48FJE,FKE,FJL,FKL,JJE,JKE,JJL,JKL054 HIGH HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
054
10,000
12,500
15,000
17,500
20,000
22,500
25,000
UNIT
SIZE
AIRFLOW
(Cfm)
054
10,000
12,500
15,000
17,500
20,000
22,500
25,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
215
255
300
340
380
425
460
255
290
330
375
410
450
480
290
325
360
400
440
470
505
325
355
400
430
460
490
525
460
480
505
530
550
580
605
495
510
530
550
570
600
625
525
540
560
570
590
620
645
1.3
1.6
3.1
4.6
6.8
9.2
12.5
1.6
1.9
3.6
5.4
7.6
10.4
13.6
1.9
2.4
4.2
6.2
8.4
11.2
14.6
2.4
3.1
5.2
7.0
9.4
12.0
15.6
360
385
430
460
480
520
550
3.1
3.8
5.8
8.0
10.0
13.2
17.0
395
420
455
480
510
540
565
3.9
4.8
6.5
8.8
11.0
14.2
17.8
430
450
480
500
530
560
580
4.8
5.8
7.4
9.4
11.8
15.4
18.8
2.2
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.4
2.6
2.8
3.0
3.2
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.4
Rpm Bhp
550
570
610
590
610
640
660
580
600
650
610
630
660
680
—
—
740
735
730
740
—
10.1
11.4
13.6
13.5
16.3
20.2
24.2
11.8
13.1
16.0
14.6
17.6
21.8
25.6
605
630
670
640
650
675
700
13.6
15.0
17.2
16.4
18.8
22.6
27.1
630
660
690
680
670
695
720
15.6
17.0
19.0
19.2
19.8
24.1
28.6
655
685
710
705
690
710
735
17.7
19.2
20.4
21.1
21.4
25.0
29.8
680
715
730
720
720
725
750
20.0
21.5
22.0
22.4
22.8
26.4
31.6
5.9
7.0
8.2
10.6
12.8
16.8
20.4
7.2
8.3
9.4
11.4
14.8
17.8
21.4
8.6
9.8
10.6
12.4
15.4
18.8
23.0
—
—
23.0
23.2
24.2
28.0
—
FAN PERFORMANCE — 48FJE,FKE,FJL,FKL,JJE,JKE,JJL,JKL064 HIGH HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
064
12,000
15,000
18,000
21,000
24,000
27,000
30,000
UNIT
SIZE
AIRFLOW
(Cfm)
064
12,000
15,000
18,000
21,000
24,000
27,000
30,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
250
290
350
400
445
505
555
280
320
385
430
480
530
575
310
350
415
455
500
550
595
345
375
440
480
525
570
610
465
490
540
570
605
645
675
495
520
560
590
625
655
695
520
545
580
610
640
675
710
3.9
4.0
5.0
7.7
11.0
16.4
22.4
3.4
3.8
5.8
8.6
12.5
17.6
23.6
3.1
3.8
6.8
9.8
13.6
18.9
25.2
3.0
4.0
7.5
10.6
14.6
20.0
26.1
375
405
465
505
545
590
630
3.2
4.4
8.2
11.6
15.8
21.4
27.2
405
435
495
525
570
605
645
3.7
5.1
9.2
12.4
17.1
22.4
28.7
2.2
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.4
2.6
2.8
3.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.2
Rpm Bhp
550
575
600
630
655
695
730
580
605
620
650
675
710
—
695
720
750
720
745
—
—
9.7
11.8
14.4
18.2
22.8
28.8
35.1
11.6
13.9
15.2
19.7
24.1
30.0
—
610
635
640
665
695
730
—
13.9
16.1
16.5
20.5
25.8
31.4
—
640
665
665
680
710
745
—
16.3
18.6
18.0
21.5
26.8
33.6
—
670
690
710
700
730
—
—
19.0
21.3
21.2
23.1
28.0
—
—
435
460
515
550
585
625
660
4.4
6.0
10.2
13.6
18.0
23.5
29.6
5.3
7.1
11.2
14.6
19.4
25.0
30.8
6.5
8.5
12.2
16.0
20.6
26.0
32.4
8.0
10.0
13.2
17.0
21.7
27.4
33.4
22.0
24.2
24.5
24.2
30.0
—
—
FAN PERFORMANCE — 48FJE,FKE,FJL,FKL074 HIGH HEAT UNITS
UNIT
SIZE
AIRFLOW
(Cfm)
074
14,000
17,500
21,000
24,500
28,000
30,000
UNIT
SIZE
AIRFLOW
(Cfm)
074
14,000
17,500
21,000
24,500
28,000
30,000
0.2
Rpm Bhp
0.4
Rpm Bhp
0.6
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.8
1.0
1.2
1.4
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1.6
Rpm Bhp
1.8
Rpm Bhp
2.0
Rpm Bhp
270
335
400
460
525
555
305
365
430
485
545
575
335
395
455
510
570
595
370
425
480
530
585
610
485
530
570
610
655
675
510
550
590
630
670
695
535
575
610
650
685
710
2.7
3.5
7.7
12.2
18.2
22.4
2.8
4.3
8.6
13.1
19.5
23.6
3.0
5.0
9.8
14.3
21.0
25.2
3.3
5.8
10.6
15.2
22.0
26.1
400
450
505
550
605
630
3.6
6.7
11.6
16.5
23.4
27.2
430
480
525
575
620
645
4.1
7.5
12.4
17.9
24.2
28.7
2.2
Rpm Bhp
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.4
2.6
2.8
3.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3.2
Rpm Bhp
560
595
630
670
705
730
580
615
650
685
725
—
660
690
720
750
—
—
7.5
12.5
18.2
24.1
30.8
35.1
8.4
13.6
19.7
25.4
32.0
—
605
635
665
700
740
—
9.4
14.8
20.5
26.6
34.1
—
625
655
680
720
750
—
10.4
16.0
21.5
27.6
35.4
—
640
675
700
735
—
—
11.6
17.2
23.1
28.8
—
—
455
505
550
595
640
660
4.6
8.4
13.6
19.2
26.0
29.6
5.2
9.4
14.6
20.2
27.0
30.8
5.9
10.4
16.0
21.3
28.2
32.4
6.6
11.4
17.0
23.0
29.4
33.4
12.8
18.5
24.2
29.9
—
—
37
Performance data (cont)
FAN PERFORMANCE — POWER EXHAUST
(Size 034-048 Units)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2
0.4
0.6
0.8
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
700
1.5
880
2.3
1050
3.5
1220
5.4
720
2.6
920
3.4
1100
3.8
1250
6.3
840
4.3
950
4.9
1120
6.4
1280
7.8
970
7.0
1040
7.6
1160
8.6
1300
10.0
1090
10.8
1160
11.6
1240
12.3
—
—
1220
16.3
1280
17.2
—
—
—
—
AIRFLOW
(Cfm)
6,000
8,000
10,000
12,000
14,000
16,000
Bhp — Brake Horsepower
FAN PERFORMANCE — POWER EXHAUST
(Size 054-074 Units)
AIRFLOW
(Cfm)
10,000
12,000
14,000
16,000
18,000
20,000
22,000
24,000
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
415
1.5 475
1.9 525
2.2 575
2.8 625
3.3 675
4.0 725
4.7 770
5.5 810
6.2 850
6.7
480
2.6 525
3.0 570
3.5 610
4.0 660
4.6 700
5.3 740
6.0 780
6.7 820
7.4 860
8.1
540
3.9 580
4.5 620
4.8 660
5.6 700
6.4 730
7.0 770
7.6 810
8.5 840
9.0 880 10.0
610
5.7 640
6.3 675
7.0 710
7.6 750
8.5 780
9.2 810
9.7 840 10.5 875 11.3 910 12.3
680
8.3 720
9.2 740
9.7 770 10.2 800 11.0 830 11.6 860 12.3 880 13.3
—
—
—
—
750 11.4 780 12.2 810 12.7 830 13.4 860 14.0 880 14.7 920 15.6
—
—
—
—
—
—
820 14.6 850 15.5 870 16.5 900 17.2 925 17.6
—
—
—
—
—
—
—
—
—
—
890 18.8 915 19.8
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bhp — Brake Horsepower
COMPONENT PRESSURE DROPS (in. wg)
(Size 034-048 Units)
CFM
COMPONENT
ECONOMIZER
INLET GUIDE VANES
FILTERS
Pleated (2-in.)
Bags With Prefilters*
POWER EXHAUST
6,000
0.06
0.01
8,000
0.09
0.02
10,000
0.12
0.03
12,000
0.16
0.04
14,000
0.21
0.05
16,000
0.25
0.06
18,000
0.29
0.08
20,000
0.35
0.10
0.01
0.36
0.07
0.01
0.38
0.08
0.01
0.41
0.09
0.02
0.51
0.13
0.04
0.64
0.18
0.04
0.77
0.24
0.03
0.91
0.32
0.02
1.01
0.41
(Size 054-074 Units)
COMPONENT
ECONOMIZER
INLET GUIDE VANES
FILTERS
Pleated (2-in.)
Bags With Prefilters*
POWER EXHAUST
*Bag filter cfm limit is 25,000.
38
10,000
0.05
0.01
12,000
0.07
0.02
14,000
0.08
0.03
16,000
0.10
0.04
18,000
0.12
0.05
CFM
20,000
0.14
0.06
22,000
0.16
0.08
24,000
0.19
0.10
26,000
0.21
0.11
28,000
0.24
0.13
30,000
0.26
0.15
0.00
0.45
0.16
0.00
0.57
0.22
0.00
0.68
0.29
0.01
0.80
0.37
0.02
0.94
0.46
0.03
1.07
0.55
0.03
1.23
0.65
0.04
1.38
0.77
0.04
—
0.87
0.05
—
0.99
0.05
—
1.12
Electrical data
48FJ,FK,JJ,JK034 UNITS
NOMINAL
VOLTAGE
(3 Ph 60 Hz)
208/230
460
575
FLA
Hp
IFM
LRA
MCA
MOCP
OFM
RLA
—
—
—
—
—
—
—
—
VOLTAGE
RANGE
187-254
414-508
518-632
COMPR
NO. 1
RLA
53.2
28.8
23.1
LRA
266
120
96
COMPR
NO. 2
RLA
53.2
28.8
32.1
LRA
266
120
96
OFM
Total
FLA
BASE UNIT
ONLY
IFM
Hp
FLA
MCA
MOCP
7.5
24.2/22
157.1/154.9
200/200
10
30.8/28
163.7/160.9
200/200
15
46.2/42
179.1/174.9
225/225
20
59.4/54
192.3/186.9
225/225
7.5
11.0
82.4
110
10
14.0
85.4
110
15
21.0
92.4
110
20
27.0
98.4
125
7.5
9.0
65.8
80
10
11.0
67.8
90
15
17.0
73.8
90
20
22.0
78.8
90
13.2
6.6
4.8
EXHAUST
FAN
Total
Total
Hp
FLA
6
22/20
10
34/30
15
48/44
6
22/20
10
34/30
15
48/44
6
22/20
10
34/30
15
48/44
6
22/20
10
34/30
15
48/44
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
BASE UNIT WITH
EXHAUST FAN
MCA
MOCP
178.3/174.9
190.5/184.9
205.5/198.9
184.9/180.9
197.1/190.9
212.1/204.9
200.3/194.9
212.5/204.9
227.5/218.9
213.5/206.9
225.7/216.9
240.7/230.9
92.0
97.6
104.4
95.0
100.6
107.4
102.0
107.6
114.4
108.0
113.6
120.4
73.6
78.0
83.8
75.6
80.0
85.8
81.6
86.0
91.8
86.6
91.0
96.8
225/225
225/225
250/250
225/225
250/225
250/250
250/225
250/250
275/250
250/250
250/250
250/250
110
125
125
110
125
125
125
125
125
125
125
125
90
100
100
90
100
100
100
100
110
100
110
110
LEGEND
Full Load Amps
Nominal Horsepower
Indoor (Evaporator) Fan Motor
Locked Rotor Amps
Minimum Circuit Amps (for wire sizing)
Maximum Overcurrent Protection
Outdoor (Condenser) Fan Motor
Rated Load Amps
39
Electrical data (cont)
48FJ,FK,JJ,JK038 UNITS
NOMINAL
VOLTAGE
(3 Ph 60 Hz)
208/230
460
575
FLA
Hp
IFM
LRA
MCA
MOCP
OFM
RLA
40
—
—
—
—
—
—
—
—
VOLTAGE
RANGE
187-254
414-508
518-632
COMPR
NO. 1
RLA
53.2
28.8
23.1
COMPR
NO. 2
LRA
266
120
96
RLA
69.2
34.6
26.7
LEGEND
Full Load Amps
Nominal Horsepower
Indoor (Evaporator) Fan Motor
Locked Rotor Amps
Minimum Circuit Amps (for wire sizing)
Maximum Overcurrent Protection
Outdoor (Condenser) Fan Motor
Rated Load Amps
LRA
345
173
120
OFM
Total
FLA
BASE UNIT
ONLY
IFM
Hp
FLA
MCA
MOCP
7.5
24.2/22.0
177.1/174.9
225/225
10
30.8/28.0
183.7/180.9
250/250
15
46.2/42.0
199.1/194.9
250/250
20
59.4/54.0
212.3/206.9
250/250
7.5
11.0
89.7
110
10
14.0
92.7
125
15
21.0
99.7
125
20
27.0
105.7
125
7.5
9.0
70.3
90
10
11.0
72.3
90
15
17.0
78.3
100
20
22.0
83.3
100
13.2
6.6
4.8
EXHAUST
FAN
Total
Total
Hp
FLA
6
21.2/20.0
10
33.4/30.0
15
48.4/44.0
6
21.2/20.0
10
33.4/30.0
15
48.4/44.0
6
21.2/20.0
10
33.4/30.0
15
48.4/44.0
6
21.2/20.0
10
33.4/30.0
15
48.4/44.0
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
BASE UNIT WITH
EXHAUST FAN
MCA
MOCP
198.3/194.1
210.5/205.3
225.5/218.9
204.9/200.1
217.1/211.3
232.1/224.9
220.3/214.1
232.5/225.3
247.5/238.9
233.5/226.1
245.7/237.3
260.7/250.9
99.3
104.9
111.7
102.3
107.9
114.7
109.3
114.9
121.7
115.3
120.9
127.7
78.1
82.5
88.3
80.1
84.5
90.3
86.1
90.5
96.3
91.1
95.5
101.3
250/250
250/250
250/250
250/250
250/250
300/250
250/250
300/250
300/300
300/250
300/300
300/300
125
125
125
125
125
125
125
125
150
125
150
150
100
100
110
100
110
110
110
110
110
110
110
125
48FJ,FK,JJ,JK044 UNITS
NOMINAL
VOLTAGE
(3 Ph 60 Hz)
208/230
460
575
FLA
Hp
IFM
LRA
MCA
MOCP
OFM
RLA
—
—
—
—
—
—
—
—
VOLTAGE
RANGE
187-254
414-508
518-632
COMPR
NO. 1
RLA
69.2
34.6
26.7
LRA
345
173
120
COMPR
NO. 2
RLA
69.2
34.6
26.7
LRA
345
173
120
OFM
Total
FLA
BASE UNIT
ONLY
IFM
Hp
FLA
MCA
MOCP
7.5
24.2/22
199.7/197.5
250/250
10
30.8/28
206.3/203.5
275/250
15
46.2/42
221.7/217.5
275/275
20
59.4/54
234.9/229.5
300/275
7.5
11.0
98.8
125
10
14.0
101.8
125
15
21.0
108.8
125
20
27.0
114.8
125
7.5
9.0
76.3
100
10
11.0
78.3
100
15
17.0
84.3
110
20
22.0
89.3
110
19.8
9.9
7.2
EXHAUST
FAN
Total
Total
Hp
FLA
6
22/20
10
34/30
15
48/44
6
22/20
10
34/30
15
48/44
6
22/20
10
34/30
15
48/44
6
22/20
10
34/30
15
48/44
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
BASE UNIT WITH
EXHAUST FAN
MCA
MOCP
220.9/217.5
233.1/227.5
248.1/241.5
227.5/223.5
239.7/233.5
254.7/247.5
242.9/237.5
255.1/247.5
270.1/261.5
256.1/249.5
268.3/259.5
283.3/273.5
108.4
114.0
120.8
111.4
117.0
123.8
118.4
124.0
130.8
124.4
130.0
136.8
84.1
88.5
94.3
86.1
90.5
96.3
92.1
96.5
102.3
97.1
101.5
107.3
250/250
300/250
300/300
250/250
300/300
300/300
300/300
300/300
300/300
300/300
300/300
350/300
125
125
150
125
150
150
150
150
150
150
150
150
110
110
110
110
110
110
110
110
125
110
125
125
LEGEND
Full Load Amps
Nominal Horsepower
Indoor (Evaporator) Fan Motor
Locked Rotor Amps
Minimum Circuit Amps (for wire sizing)
Maximum Overcurrent Protection
Outdoor (Condenser) Fan Motor
Rated Load Amps
41
Electrical data (cont)
48FJ,FK,JJ,JK048 UNITS
NOMINAL
VOLTAGE
(3 Ph 60 Hz)
208/230
460
575
FLA
Hp
IFM
LRA
MCA
MOCP
OFM
RLA
42
—
—
—
—
—
—
—
—
VOLTAGE
RANGE
187-254
414-508
518-632
COMPR
NO. 1
RLA
89.7
43.6
36.5
LRA
446
223
164
COMPR
NO. 2
RLA
69.2
34.6
26.7
LEGEND
Full Load Amps
Nominal Horsepower
Indoor (Evaporator) Fan Motor
Locked Rotor Amps
Minimum Circuit Amps (for wire sizing)
Maximum Overcurrent Protection
Outdoor (Condenser) Fan Motor
Rated Load Amps
LRA
345
173
120
OFM
Total
FLA
BASE UNIT
ONLY
IFM
Hp
FLA
MCA
MOCP
7.5
24.2/22.0
225.3/223.1
300/300
10
30.8/28.0
231.9/229.1
300/300
15
46.2/42.0
247.2/243.1
300/300
20
59.4/54.0
260.5/255.1
350/300
7.5
11.0
110.0
150
10
14.0
113.0
150
15
21.0
120.0
150
20
27.0
126.0
150
7.5
9.0
88.5
125
10
11.0
90.5
125
15
17.0
96.5
125
20
22.0
101.5
125
19.8
9.9
7.2
EXHAUST
FAN
Total
Total
Hp
FLA
6
21.2/20.0
10
33.4/30.0
15
48.4/44.0
6
21.2/20.0
10
33.4/30.0
15
48.4/44.0
6
21.2/20.0
10
33.4/30.0
15
48.4/44.0
6
21.2/20.0
10
33.4/30.0
15
48.4/44.0
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
9.6
10
15.2
15
22.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
6
7.8
10
12.2
15
18.0
BASE UNIT WITH
EXHAUST FAN
MCA
MOCP
246.5/242.3
258.7/253.5
273.7/267.1
253.1/248.3
265.3/259.5
280.3/273.1
268.5/262.3
280.7/273.5
295.7/287.1
281.7/274.3
293.9/285.5
308.9/299.1
119.6
125.2
132.0
122.6
128.2
135.0
129.6
135.2
142.0
135.6
141.2
148.0
96.3
100.7
106.5
98.3
102.7
108.5
104.3
108.7
114.5
109.3
113.7
119.5
300/300
300/300
350/350
300/300
350/350
350/350
350/350
350/350
350/350
350/350
350/350
350/350
150
150
175
150
150
175
150
175
175
175
175
175
125
125
125
125
125
125
125
125
150
125
150
150
48FJ,FK,JJ,JK054 UNITS
NOMINAL
VOLTAGE
(3 Ph 60 Hz)
208/230
460
575
FLA
Hp
IFM
LRA
MCA
MOCP
OFM
RLA
—
—
—
—
—
—
—
—
VOLTAGE
RANGE
187-254
414-508
518-632
COMPR
NO. 1
RLA
108
50.6
39.1
LRA
506
253
176
COMPR
NO. 2
RLA
74.4
34.6
28.8
LRA
345
173
120
OFM
Total
FLA
BASE UNIT
ONLY
IFM
Hp
FLA
MCA
MOCP
15
46.2/42
281.6/277.4
350/350
20
59.4/54
294.8/289.4
400/350
25
74.8/68
310.2/303.4
400/400
30
88.0/80
323.4/315.4
400/400
15
21.0
132.1
175
20
27.0
138.1
175
25
34.0
145.1
175
30
40.0
151.1
200
15
17.0
104.3
125
20
22.0
109.3
125
25
27.0
114.3
150
30
32.0
119.3
150
26.4
13.2
9.6
EXHAUST
FAN
Total
Total
Hp
FLA
10
34/30
15
48/44
20
62/56
10
34/30
15
48/44
20
62/56
10
34/30
15
48/44
20
62/56
10
34/30
15
48/44
20
62/56
10
15.2
15
22.0
20
28.0
10
15.2
15
22.0
20
28.0
10
15.2
15
22.0
20
28.0
10
15.2
15
22.0
20
28.0
10
12.2
15
18.0
20
22.0
10
12.2
15
18.0
20
22.0
10
12.2
15
18.0
20
22.0
10
12.2
15
18.0
20
22.0
BASE UNIT WITH
EXHAUST FAN
MCA
MOCP
315.0/307.4
330.0/321.4
343.2/333.4
328.2/319.4
343.2/333.4
356.4/345.4
343.6/333.4
358.6/347.4
371.8/359.4
356.8/345.4
371.8/359.4
385.0/371.4
147.3
154.1
160.1
153.3
160.1
166.1
160.3
167.1
173.1
166.3
173.1
179.1
116.5
122.3
126.3
121.5
127.3
131.3
126.5
132.3
136.3
131.5
137.3
141.3
400/400
400/400
450/400
400/400
450/400
450/450
450/400
450/450
450/450
450/450
450/450
450/450
175
200
200
200
200
200
200
200
200
200
200
225
150
150
150
150
150
150
150
150
175
150
175
175
LEGEND
Full Load Amps
Nominal Horsepower
Indoor (Evaporator) Fan Motor
Locked Rotor Amps
Minimum Circuit Amps (for wire sizing)
Maximum Overcurrent Protection
Outdoor (Condenser) Fan Motor
Rated Load Amps
43
Electrical data (cont)
48FJ,FK,JJ,JK064 UNITS
NOMINAL
VOLTAGE
(3 Ph 60 Hz)
208/230
460
575
FLA
Hp
IFM
LRA
MCA
MOCP
OFM
RLA
44
—
—
—
—
—
—
—
—
VOLTAGE
RANGE
187-254
414-508
518-632
COMPR
NO. 1
RLA
108
50.6
39.1
LRA
506
253
176
COMPR
NO. 2
RLA
108
50.6
39.1
LEGEND
Full Load Amps
Nominal Horsepower
Indoor (Evaporator) Fan Motor
Locked Rotor Amps
Minimum Circuit Amps (for wire sizing)
Maximum Overcurrent Protection
Outdoor (Condenser) Fan Motor
Rated Load Amps
LRA
506
253
176
OFM
Total
FLA
BASE UNIT
ONLY
IFM
Hp
FLA
MCA
MOCP
15
46.2/42
314.9/310.7
400/400
20
59.4/54
328.1/322.7
400/400
25
74.8/68
343.5/336.7
450/400
30
88.0/80
356.7/348.7
450/450
15
21.0
148.1
175
20
27.0
154.1
200
25
34.0
161.1
200
30
40.0
167.1
200
15
17.0
114.6
150
20
22.0
119.6
150
25
27.0
124.6
150
30
32.0
129.6
150
26.4
13.2
9.6
EXHAUST
FAN
Total
Total
Hp
FLA
10
34/30
15
48/44
20
62/56
10
34/30
15
48/44
20
62/56
10
34/30
15
48/44
20
62/56
10
34/30
15
48/44
20
62/56
10
15.2
15
22.0
20
28.0
10
15.2
15
22.0
20
28.0
10
15.2
15
22.0
20
28.0
10
15.2
15
22.0
20
28.0
10
12.2
15
18.0
20
22.0
10
12.2
15
18.0
20
22.0
10
12.2
15
18.0
20
22.0
10
12.2
15
18.0
20
22.0
BASE UNIT WITH
EXHAUST FAN
MCA
MOCP
348.3/340.7
363.3/354.7
376.6/366.7
361.5/352.7
376.5/366.7
389.7/378.7
376.9/366.7
391.9/380.7
405.1/392.7
390.1/378.7
405.1/392.7
418.3/404.7
163.3
170.1
176.1
169.3
176.1
182.1
176.3
183.1
189.1
182.3
189.1
195.1
126.8
132.6
136.6
131.8
137.6
141.6
136.8
142.6
146.6
141.8
147.6
151.6
450/400
450/450
450/450
450/450
450/450
450/450
450/450
450/450
500/500
450/450
500/500
500/500
200
200
200
200
225
225
225
225
225
225
225
225
150
150
175
150
175
175
175
175
175
175
175
175
48FJ,FK074 UNITS
NOMINAL
VOLTAGE
(3 Ph 60 Hz)
208/230
187-254
460
414-508
575
FLA
Hp
IFM
LRA
MCA
MOCP
OFM
RLA
—
—
—
—
—
—
—
—
VOLTAGE
RANGE
518-632
COMPR
NO. 1
RLA
108
50.6
39.1
LRA
506
253
176
COMPR
NO. 2
RLA
142
65.4
52.6
LRA
690
345
276
OFM
Total
FLA
BASE UNIT
ONLY
IFM
Hp
FLA
MCA
MOCP
15
46.2/42
364.8/360.6
500/500
20
59.4/54
378.0/372.6
500/500
25
74.8/68
393.4/386.6
500/500
30
88.0/80
406.6/389.6
500/500
15
21.0
169.9
225
20
27.0
175.9
225
25
34.0
182.9
225
30
40.0
188.9
250
15
17.0
133.9
175
20
22.0
138.9
175
25
27.0
143.9
175
30
32.0
148.9
200
33.0
16.5
12.0
EXHAUST
FAN
Total
Total
Hp
FLA
10
34/30
15
48/44
20
62/56
10
34/30
15
48/44
20
62/56
10
34/30
15
48/44
20
62/56
10
34/30
15
48/44
20
62/56
10
15.2
15
22.0
20
28.0
10
15.2
15
22.0
20
28.0
10
15.2
15
22.0
20
28.0
10
15.2
15
22.0
20
28.0
10
12.2
15
18.0
20
22.0
10
12.2
15
18.0
20
22.0
10
12.2
15
18.0
20
22.0
10
12.2
15
18.0
20
22.0
BASE UNIT WITH
EXHAUST FAN
MCA
MOCP
398.2/390.6
413.2/404.6
426.4/416.6
411.4/402.6
426.4/416.6
439.6/428.6
426.8/416.6
441.8/430.6
455.0/442.6
440.0/428.6
455.0/442.6
468.2/454.6
185.1
191.9
197.9
191.1
197.9
203.9
198.1
204.9
210.9
204.1
210.9
216.9
146.1
151.9
155.9
151.1
156.9
160.9
156.1
161.9
165.9
161.1
166.9
170.9
500/500
500/500
500/500
500/500
500/500
500/500
500/500
500/500
500/500
500/500
500/500
600/500
250
250
250
250
250
250
250
250
275
250
275
275
175
200
200
200
200
200
200
200
200
200
200
200
LEGEND
Full Load Amps
Nominal Horsepower
Indoor (Evaporator) Fan Motor
Locked Rotor Amps
Minimum Circuit Amps (for wire sizing)
Maximum Overcurrent Protection
Outdoor (Condenser) Fan Motor
Rated Load Amps
MOTOR LIMITATIONS
Nominal
Bhp BkW
5
3.73
7.5
5.60
10
7.46
15
11.19
20
14.92
25
18.65
30
22.38
HIGH EFFICIENCY MOTORS
Maximum
Maximum Amps
Bhp BkW 230 v 380 v 460 v 575 v
5.9
4.40
14.6
11.0
7.9
6.0
8.7
6.49
22.0
—
—
—
9.5
7.09
—
15.0
12.0
10.0
10.2
7.61
28.0
—
—
—
11.8
8.80
—
20.7
14.6
12.0
15.3 11.41
43.8
—
—
−
18.0 13.43
—
27.0
21.9
19.0
22.4 16.71
62.0
—
—
—
23.4 17.46
—
37.4
28.7
23.0
28.9 21.56
72.0
—
—
—
29.4 21.93
—
43.8
37.4
31.0
35.6 26.56
95.0
—
—
—
34.7 25.89
—
N/A
48.0
47.0
Rated
Efficiency
87.5
84.1
88.5
89.5
89.5
91.0
91.0
91.0
91.0
91.7
91.7
92.4
92.4
Nominal
Bhp
BkW
5
3.73
7.5
5.60
10
7.46
15
11.19
20
14.92
25
18.65
30
22.38
PREMIUM EFFICIENCY MOTORS
Maximum
Maximum Amps
Bhp
BkW
230 v
460 v
5.9
4.40
15.8
7.9
8.7
6.49
22.0
—
9.5
7.09
—
12.0
10.2
7.61
28.0
—
11.8
8.80
—
15.0
15.3
11.41
43.8
—
18.0
13.43
21.9
22.4
16.71
58.2
—
23.4
17.46
—
28.7
28.9
21.56
73.0
—
29.4
21.93
—
36.3
35.6
26.56
82.6
—
34.7
25.89
—
41.7
Rated
Efficiency
89.5
91.7
91.7
91.7
91.7
93.0
93.0
93.6
93.6
93.6
93.6
93.6
93.6
LEGEND
Bhp — Brake Horsepower
BkW — Brake Kilowatts
NOTES:
1. Extensive motor and electrical testing on the Carrier units has ensured that the
full horsepower range of the motor can be utilized with confidence. Using your
fan motors up to the horsepower ratings shown in the Motor Limitations table
will not result in nuisance tripping or premature motor failure. Unit warranty will
not be affected.
2. All motors comply with Energy Policy Act (EPACT) Standards effective October
24, 1997.
45
Typical control wiring
FIELD POWER WIRING CONNECTIONS
TIME GUARD II DEVICE WIRING —
UNITS WITH ECONOMIZER
GND — Ground
NEC — National Electrical Code
TIME GUARDt II DEVICE WIRING —
UNITS WITHOUT ECONOMIZER
FIELD CONTROL THERMOSTAT WIRING
CONSTANT VOLUME UNITS
46
FIELD CONTROL WIRING
VARIABLE AIR VOLUME UNITS
034-048: TB3
054-074: TB4
034-048: TB3
054-074: TB4
1
2
034-048: TB3
054-074: TB4
8
OCCUPIED/UNOCCUPIED
SWITCH
9
NIGHT SETBACK THERMOSTAT
NOTES:
1. Occ/Unocc switch to closed when occupied.
2. Night setback thermostat closes when in night setback heating.
OCCUPIED/UNOCCUPIED SWITCH WITH
NIGHT SETBACK THERMOSTAT
034-048: TB3
054-074: TB4
3
4
6
4
V
SINGLE STEP DEMAND LIMIT
N.O.
SIGNAL
TO ROOM
TERMINALS
7
10
FIELD
SUPPLIED
POWER
SOURCE
HIR
5
5-20K
POTENTIOMETER
(P4)
N.C.
HEAT INTERLOCK RELAY
NOTES:
1. Demand limit switches are field supplied and wired.
2. Demand limit control module terminal blocks will accept up to
12-gage wire.
3.
is field wiring.
115-VOLT FIELD WIRING TO ACCESSORY
2-STEP DEMAND LIMIT CONTROL MODULE
034-048: TB3
054-074: TB4
T10
12
P7
RESET
BOARD
15
ACCESSORY RESET BOARD
47
Controls
Evacuation — Evacuation mode removes smoke or undesirable air from interior spaces without reintroducing unsuitable air. The factory-installed optional economizer with
option/accessory power exhaust are required for this function. Evacuation is accomplished by the following:
• turning the supply fan off
• opening the economizer (option required)
• running the exhaust fans (option or accessory required)
• opening the exhaust dampers
Smoke purge — Smoke Purge mode removes smoke from
the interior spaces and replaces it with fresh outside air. The
factory-installed optional economizer with option/accessory
power exhaust are required for this function. Smoke purge
is accomplished by the following:
• turning supply fan on
• opening the economizer (option required)
• running the exhaust fans (option or accessory required)
• opening the exhaust dampers
Smoke control installation — Implementation of the various Smoke Control modes on these units requires the installer to modify the unit wiring to add contacts (via either
manual switches or relays) that will selectively interrupt and
override standard factory control sequences.
Smoke control recommendations
Rooftop units can be used for aid in building smoke control in the event of a building fire. The available functions
include: Fire Shutdown, Pressurization, Evacuation, and
Smoke Purge. These functions are enhanced when multiple
rooftop units are used to zone a building.
Fire shutdown — Fire Shutdown mode terminates all unit
operation (cooling, heating, supply fan, and power exhaust). This mode prevents recirculation of contaminated
air back into the space. The mode will not allow admission
into the space of unsuitable outside air.
Pressurization — Pressurization mode is intended to keep
smoke out of a zone. The factory-installed optional economizer is required for this function. Pressurization is accomplished by the following:
• opening the economizer (option)
• running the supply fan (optional inlet guide vanes open
or optional VFD at normal duct static pressure set point)
• closing the power exhaust dampers (if installed as option
or accessory)
• shutting off the power exhaust fans (if installed as option
or accessory)
This allows the space to be overpressurized relative to
adjacent zones and prevents or slows entry of smoke into
this space from adjacent zones.
SMOKE CONTROL MODES
MODE
FUNCTION
Supply Fan
IGV/VFD†
Economizer
Return-Air
Damper
Exhaust
Fans
Exhaust
Damper
LEGEND
IGV — Inlet Guide Vanes
VAV — Variable Air Volume
VFD — Variable Frequency Drive
48
Fire
Shutdown
Off
—
Closed
Pressurization
Evacuation*
On
Open/On
Open
Off
—
Open
Smoke
Purge*
On
Open/On
Open
Open
Closed
Closed
Closed
Off
Off
On
On
Closed
Closed
Open
Open
*Power exhaust option required for this mode.
†Applicable to VAV units with appropriate options.
SMOKE CONTROL SWITCHES — CONSTANT VOLUME UNITS
(48FJ,JJ)
SMOKE
CONTROL
MODE
FIRE
SHUTDOWN
PRESSURIZATION
SW-1
SW-2
SW-1
SW-2
SW-3
SW-4
SW-5A/B
SW-6
SWITCHES
USED
EVACUATION
(Non-Modulating
Power Exhaust)
SW-1
SW-2
SW-3
SW-4
SW-6
SW-7
EVACUATION
(Modulating Power
Exhaust)
SW-1
SW-2
SW-3
SW-4
SW-6
SW-7
SW-8
SW-9
SMOKE
PURGE
SW-1
SW-2
SW-3
SW-4
SW-5A/B
SW-8
NOTE: All switches are shown in ‘‘as installed’’ (power OFF or deenergized) position. In these positions, none of these modes will be activated
and normal unit operation is permitted by the base unit controls. To initiate any mode, all switches listed under this mode in the table must be
energized, causing the contact position to change to energized position.
Switches may be manually or electrically operated.
SMOKE CONTROL SWITCH FUNCTIONS — CONSTANT VOLUME UNITS
(48FJ,JJ)
SWITCH
NUMBER
SW-1
SW-2
SW-3
SW-4
CONFIGURATION
VOLTAGE
FUNCTION
115
24
24
24
SW-6
SW-7
SW-8
N.C.
N.C.
N.O.
N.C.
A: N.C.
B: N.O.
N.C.
N.O.
N.O.
SW-9
N.C.
24
Disconnect 115-v Control Power
Disconnect 24-v Control Power
Supply Power to Economizer Motor
Opens Economizer Dampers to Wide-Open
A. Prevent Backfeed through K3
B: Energize IFC
Isolate IFC and PEC, for Separate Operation
Energize Power Exhaust
Force Power Exhaust Damper for Open
Prevent DPS Control from Reclosing Exhaust Damper
Due to Low BP
SW-5A/B
BP
DPS
IFC
N.C.
N.O.
PEC
—
—
—
—
—
—
115
115
115
24
LEGEND
Building Pressure
Differential Pressure Switch
Indoor Fan Contactor
Normally Closed
Normally Open
Power Exhaust Contactor
49
Controls (cont)
CONSTANT VOLUME SMOKE CONTROL WIRING (SW-1 THROUGH SW-4)
WIRES REMOVED
FROM CB4
034-048 UNITS
SW1
TB2
SW2
TB2
5
6
CB4
RED
PNK
054-074 UNITS
SW1
TB2
TB2
3
2
ECONOMIZER
MOTOR
SW3
LEGEND
CB — Circuit Breaker
SW — Switch
TB — Terminal Block
A1-T1
RED
REMOVE
JUMPER
2
Y
SW4
CONSTANT VOLUME UNITS WITH NON-MODULATING POWER EXHAUST,
SMOKE CONTROL WIRING (SW-5 THROUGH SW-7)
REMOVED
FROM C1-IFC
FROM
CONTROL
BOARD
054-074 UNITS
TB2
SW-5A
BLK
034-048 UNITS
2
LEGEND
IFC — Indoor-Fan Contactor
SW — Switch
TB — Terminal Block
TB2
C1
IFC
SW-5B
5
SW-6
SW-7
BLK
REMOVED
FROM
C1-IFC
50
RED
RED
CONSTANT VOLUME UNITS WITH MODULATING POWER EXHAUST,
SMOKE CONTROL WIRING (SW-5 THROUGH SW-9)
REMOVED
FROM C1-IFC
SW-8
SW-5A
FROM
CONTROL
BOARD
054-074 UNITS
TB2
034-048 UNITS
TB2
2
5
BLK
C1
IFC
SW-9
SW-5B
DPS
NC
C
WHT
VIO
NO
REMOVED
FROM C-DPS
GRA
SW-6
SW-7
BLK
BLK *
LEGEND
DPS
— Differential Pressure Switch
IFC
— Indoor-Fan Contactor
SW
— Switch
TB
— Terminal Block
*Size 054-074 units only.
REMOVED
FROM C1-IFC
SMOKE CONTROL SWITCHES — VARIABLE AIR VOLUME UNITS (48FK,JK)
SMOKE
CONTROL
MODE
FIRE
SHUTDOWN
PRESSURIZATION
SW-1
SW-2
SW-1
SW-2
SW-4
SW-5
SW-6
SW-9A/B
SWITCHES
USED
NOTE: All switches are shown in ‘‘as installed’’ (power OFF or deenergized) position. In these positions, none of these modes will be activated
and normal unit operation is permitted by the base unit controls. To
EVACUATION
(Modulating Power
Exhaust)
SW-1
SW-2
SW-3
SW-5
SW-6
SW-7
SW-8
SMOKE
PURGE
SW-1
SW-2
SW-3
SW-4
SW-9A/B
initiate any mode, all switches listed under this mode in the table must
be energized, causing the contact position to change to energized position. Switches may be manually or electrically operated.
SMOKE CONTROL SWITCH FUNCTIONS — VARIABLE AIR VOLUME UNITS (48FK,JK)
SWITCH
NUMBER
SW-1
SW-2
SW-3
SW-4
SW-5
SW-6
SW-7
SW-8
SW-9A/B
BP
DPS
EOR
HIR
IFC
IGV
N.C.
—
—
—
—
—
—
—
CONFIGURATION
VOLTAGE
FUNCTION
N.C.
N.C.
N.O.
N.O.
N.C.
N.O.
N.O.
N.C.
A: N.O.
B: N.C.
115
115
24
115
115
115
24
24
Deenergize 115-v (OFC, Comp, IFC, Electric Heaters)
Deenergize TRAN7 (Process Board)
Energize EOR (Open Economizer Outside Air Dampers)
Energize IFC and CR-3 (IGV/VFD)
Isolate IFC and PEC for Separate Operation
Energize PEC (Power Exhaust)
Open PED at DPS
Block Auto-Close at DPS (Due to Low BP)
LEGEND
Building Pressure
Differential Pressure Switch
Economizer Open Relay
Heat Interlock Relay
Indoor-Fan Contactor
Inlet Guide Vane
Normally Closed
N.O.
OFC
PEC
PED
TRAN
VFD
115 max
—
—
—
—
—
—
Single Room Terminals to Open (HIR1)
Normally Open
Outdoor-Fan Contactor
Power Exhaust Contactor
Power Exhaust Damper
Transformer
Variable Frequency Drive
51
Controls (cont)
VARIABLE AIR VOLUME UNITS, SMOKE CONTROL WIRING
034-048 UNITS
TB2
SW-1
5
054-074 UNITS
TB2
TB2
6
13
SW-1
14
REMOVE JUMPER
TB2
SW-2
1
REMOVE JUMPER
TB2
TB2
2
7
SW-2
SW-3
1
TB2
SW-4
5
TB2
SW-5
8
REMOVE JUMPER
TB3
TB4
5
1
TB2
TB2
9
13
TB2
TB2
9
1
SW-3
SW-6
5
TB3
SW-9A
3
TB3
SW-9B
3
SW-4
2
SW-5
TB2
8
13
TB3
TB4
4
3
TB3
TB3
7
3
SW-6
SW-9A
SW-9B
TB4
7
NC
VIO
NO
GRA
TB4
4
C
REMOVED
FROM C-DPS
TB2
1
ALL UNITS
DPS
52
TB2
REMOVE JUMPER
SW-8
WHT
TB2
2
TB2
SW-7
TB4
5
REMOVE JUMPER
TB2
TB2
8
REMOVE JUMPER
TB3
TB2
Operating sequences,
constant volume units (48FJ and JJ)
Cooling, units without economizer — Unit power ON,
system selector switch at COOL or AUTO., fan switch at
AUTO., thermostat at setting below room temperature.
Upon a request for cooling from thermostat, terminals G
and Y1 will be energized with 24 volts. In turn, the indoor
fan motor and compressor no. 1 are energized as the first
stage of cooling. (Compressor no. 1 is always on the left
side of the unit when facing the unit control box.) If cooling
load cannot be satisfied with only first-stage cooling, Y2 on
the thermostat will close, energizing compressor no. 2. (Compressor no. 2 is located on the right side of the unit when
facing the unit control box.)
SIZES 034 AND 038 — Condenser fans are energized with
compressor no. 1. The no. 1 fan runs continuously while
the unit is on mechanical cooling; the no. 2 fan is cycled on
and off for head pressure control.
SIZES 044-074 — Condenser fan no. 1 is energized with
compressor no. 1 and condenser fan no. 2 is energized with
compressor fan no. 2. The remaining fans are cycled on
and off for head pressure control.
Heating, units without economizer
48FJD,FJK,JJD,JJK (Low Heat) — Unit power ON, thermostat system switch at HEAT or AUTO., fan switch at
AUTO.
Upon a request for heating from thermostat, W1 is energized with 24 volts. In turn, the induced-draft contactor
no. 1 is energized and the pilot ignition sequence begins.
The indoor fan contactor is energized.
Centrifugal switch closes. Pilot valve opens, allowing gas
to flow to first-stage pilot. Spark ignitor ignites pilot flame.
Sensor detects flame, energizes main gas valve coil and main
gas valve opens. Gas flows to main burners and first-stage
burners ignite. Spark ignitor shuts off and pilot remains on.
The spark ignitor will continue to spark for 90 seconds
until pilot flame is sensed. If the pilot fails to ignite or the
sensor fails to detect flame, the pilot valve closes and the
spark ignitor shuts off for 300 seconds (5 minutes). During
this time the induced draft motor remains on to purge any
unburnt gas from the combustion tubes. This ignition sequence will repeat indefinitely.
When additional heat is needed, W2 is energized and
a second coil in the main gas valve is energized. This
brings on an additional stage of heat. When second-stage
thermostat is satisfied, the second-stage gas valve coil is
deenergized.
After W1 is deenergized, the indoor fan motor shuts off
immediately.
48FJE,FJL,JJE,JJL (High Heat) — Unit power ON, thermostat system switch set at HEAT or AUTO., and fan switch
set at AUTO.
Upon a request for heating from thermostat, W1 is energized with 24 volts. In turn, the induced-draft contactor is
energized and the pilot ignition sequence begins. The indoor fan contactor is energized after W1 is energized and
the indoor fan starts.
When indoor fan starts, airflow switch closes, closing induced draft contactor, and induced-draft motor starts.
Centrifugal switch closes. Pilot valve opens, allowing gas
to flow to first-stage pilot. Spark ignitor ignites pilot flame.
Sensor detects flame, energizes main gas valve coil, and
main gas valve opens. Gas flows to main burners and firststage burners ignite. Spark ignitor shuts off and pilot remains on.
The spark ignitor will continue to spark for 90 seconds
until pilot flame is sensed. If the pilot fails to ignite or the
sensor fails to detect flame, the pilot valve closes and the
spark ignitor shuts off for 300 seconds (5 minutes). During
this time the induced draft motor remains on to purge any
unburnt gas from the combustion tubes. This ignition sequence will repeat indefinitely.
When additional heat is needed, W2 is energized. Pilot
valve no. 2 opens, allowing gas to flow to second-stage pilot. Spark ignitor ignites pilot flame. Sensor detects flame,
energizes main gas valve coil, and main gas valve no. 2
opens. Gas flows to main burners and second-stage burners ignite. Second-stage spark ignitor shuts off. When the
second-stage thermostat is satisfied, W2 is deenergized and
the second induced-draft motor and gas valve are shut off.
When the first-stage thermostat is satisfied, first-stage main
gas valve and the pilot valve close. Induced draft motor shuts
off. After W1 is deenergized, indoor fan motor shuts off
immediately.
Cooling, units with economizer — Unit power ON, subbase switch set at COOL and fan switch set at AUTO. Upon
a request for cooling from the thermostat, terminals G and
Y1 are energized with 24 volts, energizing the indoor fan
contactor and indoor fan. If outdoor air enthalpy is below
setting on enthalpy switch, the economizer outside air dampers will modulate open to satisfy the cooling requirement. If
outside air alone will not meet the cooling requirements, Y2
on the thermostat will close, energizing compressor no. 1
to work in conjunction with the modulating economizer to
meet the cooling requirement. While the unit is operating
using outside air, compressor no. 2 cannot be energized. If
the enthalpy is above setting on enthalpy switch, the economizer outside air dampers move to the minimum (ventilation) position, and compressors cycle on and off as described
in Cooling, units without economizer.
NOTE: If fan switch is ON and the room thermostat is satisfied, the outside air dampers will move to the minimum
position.
Heating, units with economizer — Operation is the same
as described in Heating, units without economizer, except that the outside air dampers move to the minimum
position.
53
Controls (cont)
Operating sequences,
variable air volume units (48FK and JK)
Cooling — When the field-supplied external time clock
places the unit in the Occupied mode, microprocessor goes
through a 2-minute initialization period. The indoor-fan motor does not run while the unit is in the Initialization mode.
During initialization period, effective range of economizer potentiometer is established and is used to sense position of economizer dampers. For approximately 60 seconds of initialization period, dampers are driven fully open
and full open resistance of potentiometer is recorded by
microprocessor. The dampers are then driven to fully closed
position and this potentiometer resistance is also recorded
by microprocessor. These 2 readings establish effective range
of the economizer potentiometer.
Upon completion of Initialization mode, the control operates unit to try to maintain the temperature at setting of
the discharge air temperature set point. The control will always try to use economizer as first stage of cooling, enthalpy permitting. Enthalpy permitting, control will open
economizer dampers and try to maintain leaving-air temperature at the discharge air temperature set point minus
2 degrees. If economizer dampers become fully open and
still cannot maintain desired leaving air temperature, control will begin to cycle on compressors and condenser fans.
Once mechanical cooling begins, control strives to maintain leaving-air temperature at discharge-air temperature set
point rather than at the discharge-air temperature set point
minus 2 degrees.
The microprocessor determines how rapidly capacity steps
are added or subtracted based on deviation from leaving
air set point and rate of change of leaving-air temperature.
Compressor no. 1 always has 2 electric unloaders (044 units
have one unloader) and compressor no. 2 never has
unloaders.
If enthalpy is such that economizer cannot be used for
cooling, dampers will go to their minimum position as set
by the minimum position potentiometer. The control will
then use mechanical cooling to meet the cooling load.
Units with morning warm-up heat, heating — When
in heating mode, room terminals must be wide open.
If return-air temperature is 5° F below warm-up temperature set point, heating relay will be energized and heat will
be brought on. The HIR relay function will be energized,
driving room terminals to the heating position. The heat
will remain on until return-air temperature is 2° F below
warm-up temperature set point. During heating, economizer dampers will be fully closed. The unit can go in and
out of heating until the interior load raises return-air temperature above the warm up temperature set point. After
the return-air temperature rises above the warm-up set point,
unit cannot go back into heating mode until reentering the
Occupied mode.
Application data
Roof curb installation
Airflow Limits
Secure vertical return and supply ductwork to the roof curb.
Interior installation may proceed before unit is set in on the
roof.
Units with power exhaust (option or accessory) —
Units equipped with power exhaust option or accessory require a 90 degree elbow directly below the unit return air
opening. If an elbow is not possible, install a screen or heavy
grille in the ductwork above the return air grille. (Refer to
unit installation instructions for further details.)
Through-the-curb service connections — Electrical
power supply and control power cable may be routed through
the inside perimeter of the accessory roof curb and then
into the bottom of the unit control box. On sizes 034-048,
the curb connection route is located directly beneath the
unit main control box entry. On sizes 034-048, the curb
connection route is located directly beneath the unit main
control box entry. On sizes 054-074, this route will terminate at the curb top panel at the end of the air handler section and beneath the unit condenser section. Install a weatherproof cover or pitch pocket on top of the curb and then
continue the electrical cables with weatherproof flexible conduit over to the bottom of the unit main control box.
Unit mount on structural steel — If roof curb installation is not used, support the unit with steel beams along its
entire length and then support the steel as required. As a
minimum, the unit must be support across its width at each
lifting lug location.
Minimum Airflow:
CV units: 300 CFM per nominal ton
VAV units: 200 CFM per nominal ton for full load
selection.
NOTE: On VAV units, a minimum airflow of 70 CFM per
nominal ton is required for minimum unloaded operation.
Units equipped with optional Hot Gas Bypass feature may
be applied to slightly lower limits (varies by unit size).
Maximum Airflow — To minimize the possibility of condensate blow-off from evaporator coils, airflow through units
should not exceed values shown in Cooling Airflow Operating Range table on page 10 and in Cooling Capacities
tables on pages 27-32.
Motor limits — Due to Carrier’s internal unit design (drawthrough evaporator arrangement), air path, and specially
designed motors, the full horsepower listed in the Motor
Limitations table (page 43) can be utilized with extreme confidence. Using Carrier motors with the values listed in this
table will not result in nuisance tripping or premature motor failure. The unit warranty will not be affected.
54
Application data (cont)
Field-supplied fan drives — Supply fan and power exhaust fan drives are fixed-pitch, non-adjustable selections,
for maximum reliability and long belt life. If the factory drive
sets must be changed to obtain other wheel speeds, consult
the nearest Browning Manufacturing Co. sales office with
the required new wheel speed and the data from Supply
Fan Drive Data and Physical Data tables on pages 5 to 8
(center distances, motor and fan shaft diameters, motor
horsepower) for a modified drive set selection. For minor
speed changes, the fan sheave size should be changed. (Do
not reduce the size of the motor sheave; this will result in
reduced belt horsepower ratings and reduced belt life.)
Cooling
Minimum outdoor temperature — Units equipped with
factory-option economizer allow free cooling down to −20
F (−29 C). If mechanical cooling is required, the units are
designed to operate at outdoor temperatures down to 45 F
(7 C). With accessory Motormastert control, unit can operate down to −20 F (−29 C). Outdoor-fan motor changeout is required for Motormaster control installation.
Maximum outdoor temperature — Units are designed
for operation at 115 F (46 C). Some models may operate
at ambients up to 125 F (52 C), depending upon unit size
and operating conditions.
Heating
Constant Volume (CV) — Observe the approved ranges
for minimum and maximum unit airflow rates (see table on
page 10). Minimum allowable temperature of mixed air entering the heat exchanger during half-rate (first stage) operation is 35 F (1.7 C). There is no minimum mixed-air
temperature limitation during full-rate operation.
Variable Air Volume (VAV) — Variable air volume units
are intended to heat only during Unoccupied periods or for
morning warm-up. These units will not provide an Occupied heating function.
During all heat cycle operation, the system airflow rate
must satisfy the operating limits described in table 10. This
will require that room air terminals be driven to their wideopen or heating positions. The Heat Interlock Relay (HIR)
function in the unit control system will provide the signal to
the terminal controls to move to their heating position whenever the unit heating cycle is initiated.
Controls
Constant Volume (CV) — Constant volume units use an
electromechanical control system with 2-stage control for
cooling (and for heating when so equipped). Use 2-stage
thermostats (electromechanical or electronic). All units equipped
with heating function are automatic changeover from heating to cooling when automatic changeover thermostatsubbase is used.
Variable Air Volume (VAV) — Variable air volume units
do not use space thermostats for unit control. When the
unit is switched into Occupied status (via timeclock or night
setback override thermostat), the unit control system will
provide morning warm-up heating based on return-air temperature (sensed at T2 location inside the unit) and then
cooling cycle operation based on leaving-air temperature
(sensed at T1 location inside the unit).
Increased comfort and reduced operating costs on VAV
systems are available by employing a leaving-air temperature set point (SASP) Reset Control function. This accessory system automatically adjusts (resets) the unit SASP
temperature upward as the space load is satisfied and space
temperature begins to drop below a user-specified set point,
thus reducing compressor power requirements and increasing space ventilation. The accessory consists of a space temperature sensor and a set point potentiometer board.
Static pressure sensor locations
Supply fan (IGV or VFD) — Units equipped with factoryoption supply duct pressure controls (inlet guide vanes or
variable frequency drive) require a static pressure pick-up to
be field-supplied and installed in the supply duct. Locate the
field-supplied pickup in the main supply duct approximately
2/3 of the length of the duct away from the HVAC unit,
and before any main branch take-offs. Install fire-retardant
plenum tubing of appropriate size from the duct pressure
pick-up to the control device located in the HVAC unit.
Modulating Power Exhaust — Units equipped with modulating power exhaust (factory-installed option or field-installed
accessory) require a static pressure pick-up be provided and
installed in the conditioned space. Install fire-retardant plenum tubing of appropriate size from the space pressure
pick-up to the power exhaust control device (differential pressure switch) located in the HVAC unit.
Minimum service clearance
Carrier’s recommended minimum service clearances for
these units are listed in the unit dimensional drawings. These
recommendations include requirements for safety (observing National Electrical Code requirements for working space
around electrical components) unit performance impact, and
service access (for routine and possible major service work).
If installations with service clearances less than these minimum distances are being considered, only those clearances
involving performance impact and/or service access may
be candidates for exception. Note that reduced service clearances at installation may contribute to higher labor costs for
future service work.
55
Application data (cont)
AUXILIARY COIL FRAME DIMENSIONS in. (mm)
Auxiliary coil
The 48JJ and JK units are capable of accepting field-supplied
and -installed auxiliary coils (typically hydronic heating, steam
heating, or refrigeration heat reclaim coils). These units include coil tracks and face framing to facilitate installation of
auxiliary coils. See figure below for dimensions on coil track
locations inside these units. See Auxiliary Frame Coil Dimensions table for dimensions of the auxiliary coils.
DIMENSION
Casing Depth
Casing Height
Casing Length*
Overall Length†
LOCATION OF COIL TRACKS
UNIT SIZE
034-048
9.8
(250)
55.52
(1410)
69.50
(1765)
83.9
(2131)
054,064
9.8
(250)
66.00
(1674)
69.50
(1765)
83.9
(2131)
*Longer casing lengths possible but modifications to face framing sheetmetal will be required during installation.
†Represents the maximum overall length of the coil plus all piping and
coil control devices located inside the air handler cabinet.
Application of hydronic coils and steam heating coils in outdoor located equipment should always be considered very
carefully. Design such systems for low temperature protection in the event of power failure to the unit.
Steam coils typically not recommended for installation in
outdoor located equipment, due to added space required for
fluid control and need to protect all piping and controls in
the event of power failure to the building and/or the unit.
Consider installing small steam-to-hydronic heat exchangers with circulating pump to deliver hydronic fluids out to
the auxiliary coil in the air conditioner unit.
A
Space temperature reset
B
UNIT SIZES
034-038
044-048
054-074
56
DIMENSION A
in. (mm)
123.0
(3147)
156.8
(3982)
200.6
(5094)
HEIGHT B
in. (mm)
6.6
(167)
6.6
(167)
6.6
(167)
Variable air volume applications that require averaging multiple space temperature sensors to determine when to modify
the discharge air temperature can be satisfied using either
4 or 9 sensors as shown below. Single sensor space temperature reset wiring is shown in Typical Control Wiring
Accessory Reset Board diagram, Variable Air Volume Units
on page 45.
NOTE: Only Carrier sensors may be used (part number
HH79NZ014). Sensors must be used in multiples of 1, 4
and 9 only, with total sensor wiring not to exceed
1000 feet.
SPACE TEMPERATURE RESET — 4 SENSOR APPLICATION
034-048:TB3
054-074:TB4
RED
RED
BLK
BLK
12
RED
RED
BLK
BLK
ACCESSORY
RESET
BOARD
TB — Terminal Block
Factory Wiring
Field Wiring
SENSOR 1
SENSOR 2
SENSOR 4
SENSOR 3
SPACE TEMPERATURE RESET — 9 SENSOR APPLICATION
034-048:TB3
054-074:TB4
12
RED
RED
BLK
BLK
SENSOR 2
RED
BLK
SENSOR 1
ACCESSORY
RESET
BOARD
RED
RED
BLK
BLK
SENSOR 5
SENSOR 6
RED
BLK
SENSOR 4
TB — Terminal Block
Factory Wiring
Field Wiring
SENSOR
RED
RED
BLK
BLK
SENSOR 8
SENSOR 9
57
Typical wiring diagrams
LEGEND AND NOTES FOR TYPICAL WIRING SCHEMATICS
ALM
C
CB
CH
CLO
COMP
CV
DMS
DPS
DPT
DU
EAT
EC
ECON
ECR
EOR
EQUIP
FLA
FSS
GND
GR
HIR
HPS
HR
I
ICP
IDC
IDM
IFC
IFCB
IFM
IGV
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Alarm
Contactor
Circuit Breaker
Crankcase Heater
Compressor Lockout
Compressor
Constant Volume
Damper Motor Switch
Differential Pressure Switch
Duct Pressure Transducer
Dummy
Entering Air Termistor
Enthalpy Control
Economizer
Economizer Close Relay
Economizer Open Relay
Equipment
Full Load Amps
Fan Status Switch
Ground
Gas Relay
Heat Interlock Relay
High-Pressure Switch
Heater Relay
Ignitor
Ignitor Control Pack
Induced Draft Contactor
Induced Draft Motor
Indoor (Evaporator) Fan Contactor
Indoor (Evaporator) Fan Circuit Breaker
Indoor (Evaporator) Fan Motor
Inlet Guide Vane
IP
LAT
LPS
LS
LSR
MGV
MTR
NC
NO
OFC
OFM
OMR
PEC
PECB
PEM
PIC
P, PL
PRI
PS
PV
RES
RS
SCT
SEN,SN
SW
TB
TRAN
U
VFD
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Internal Pressure Switch
Leaving Air Thermistor
Low-Pressure Switch
Limit Switch
Limit Switch Relay
Main Gas Valve
Motor
Normally Closed
Normally Open
Outdoor (Condenser) Fan Contactor
Outdoor (Condenser) Fan Motor
Outdoor Motor Relay
Power Exhaust Contactor
Power Exhaust Circuit Breaker
Power Exhaust Motor
Processor-Integrated Controls
Plug
Primary
Pressure Switch
Pilot Valve
Resistor
Rollout Switch
Saturated Condensing Thermistor
Sensor
Switch
Terminal Block
Transformer
Unloader
Variable Frequency Drive
Field Wiring
Factory Wiring
NOTES:
1. Connect TRAN1 to H4 for 460 v units. Connect to H3 for 230 v
units. If 208/230 v units are run with a 208 v power supply
connect to H2 .
2. Connect TRAN2 to BLK lead for 460 v units. Connect to ORN
lead for 230 v units. If 208/230 v units are run with a 208 v power
supply connect to RED lead.
3. Circuit breaker must trip amps are equal to or less than 156%
FLA for CB1 and CB2. All others are 140%.
4. If any of the original wire furnished must be replaced, it must be
replaced with type 90° C wire or its equivalent.
5. Number(s) indicates the line location of contacts. A bracket over
(2) numbers signifies single pole double throw contacts. An underlined number signifies a normal closed contact. Plain number(s) (no lines), signifies a normally opened contact.
6. Condenser fan motors are thermally protected.
7. Three phase motors are protected under primary single phasing
conditions.
58
CONSTANT VOLUME UNITS (SIZES 034-048, 208/230 AND 460 SHOWN)
59
Typical wiring diagrams (cont)
60
VARIABLE AIR VOLUME UNITS (SIZES 034-048, 208/230 AND 460 SHOWN)
VARIABLE AIR VOLUME UNITS (SIZES 034-048, 208/230 AND 460 SHOWN) (cont)
61
Typical wiring diagrams (cont)
TYPICAL GAS SECTION (SIZES 034-048 SHOWN)
62
Guide specifications — 48FJ,JJ
Packaged Rooftop Cooling Unit
With Gas Heat —
Constant Volume Application
HVAC Guide Specifications — Section 48FJ,JJ
Size Range: 30 to 75 Tons, Nominal
Carrier Model Number: 48FJ (Vertical Supply/Return)
48JJ (Vertical Supply/Return,
Extended Chassis)
Part 1 — General
1.01 SYSTEM DESCRIPTION
A. Outdoor roof curb mounted, electronically controlled
heating and cooling unit utilizing semi-hermetic reciprocating type compressors for cooling duty and gas
combustion for heating duty. Units shall discharge supply air downward as shown on contract drawings.
1.02 QUALITY ASSURANCE
A. Unit shall be rated in accordance with ARI Standard
340/360.
B. Unit shall be designed to conform to ANSI/ASHRAE
15, latest revision, UL Standard 1995, and National
Electric Code.
C. Unit shall be listed by ETL and ETL, Canada as a total package.
D. Roof curb shall be NRCA approved.
E. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation.
1.03 DELIVERY, STORAGE AND HANDLING
Unit shall be stored and handled per manufacturer’s
recommendations.
Part 2 — Products
2.01 EQUIPMENT
A. Factory-assembled, single-piece heating and cooling
unit. Contained within the unit enclosure shall be all
factory wiring, piping, refrigerant charge (R-22), operating oil charge, dual refrigerant circuits, and all special features required prior to field start-up.
B. Extended Chassis (48JJ units only):
Extended chassis designs shall contain an added length
module, after the evaporator section, as shown in the
contract drawings. Module shall contain tracks to accept field-supplied and installed auxiliary heating coil.
C. Unit Cabinet:
1. Constructed of galvanized steel, bonderized and
primer-coated on both sides and coated with a
baked polyester thermosetting powdercoating finish on the outer surface.
2. Unit casing shall be capable of withstanding ASTM
Standard B117 500-hour salt spray test.
3. Sides shall have man size insulated hinged access
doors for easy access to the control box and other
areas requiring servicing. Each door shall seal against
a rubber gasket to prevent air and water leakage,
and be equipped to permit ease and safety during
servicing.
4. Interior cabinet surfaces (except heat exchanger
section) shall be insulated with flexible fire-retardant
dual-density fiberglass blanket, coated on the air
side. Insulation coating shall be cleanable and shall
contain an EPA-registered immobilized antimicrobial agent to effectively resists the growth of bacteria and fungi as proven by tests in accordance
with ASTM Standards G21 and G22.
5. Interior cabinet surfaces within heat exchanger section shall be lined with sheet metal on all surfaces,
insulated on the side opposite the air stream.
6. Insulation shall be applied by means of adhesion
using a water reducible adhesive sprayed onto interior surface. Adhesive shall maintain a satisfactory adhesion and cohesion within the temperature range of −20 to 180 F (−29 to 82 C) and
have excellent resistance to water and water vapor when cured.
7. Unit shall contain a sloped drain pan, to prevent
standing water from accumulating. Pan shall be
fabricated of hot dipped zinc coated minimum
spangle steel. Zinc coating shall be G90 designation according to ASTM Standard A653. Unit shall
contain a factory-installed nonferrous main condensate drain connection.
8. Units shall be equipped with lifting lugs to facilitate overhead rigging.
D. Fans:
1. Evaporator Fan:
a. Double-width, double-inlet, centrifugal belt
driven forward-curved type with single outlet
discharge.
b. Fixed-pitch pulley drive.
c. Mounted on a structural steel sled with flexible outlet connection consisting of canvas
transitions.
d. Fan shaft bearing shall be of the pillow-block
type with lubrication provisions.
e. Statically and dynamically balanced.
f. Evaporator-fan shaft bearings shall have a life
of 200,000 hours at design operating conditions in accordance with ANSI B3.15.
g. Solid fan shaft construction.
h. Unit shall be equipped with 5 in. (127 mm)
(034-048 units) or 7 in. (178 mm) (054-074
units) spring vibration isolators, each with 2-in.
(51 mm) deflection.
2. Condenser Fans:
a. Direct-driven propeller type only.
b. Discharge air vertically upward.
c. Protected by PVC-coated steel wire safety
guards.
d. Statically and dynamically balanced.
e. Three-phase, totally enclosed motors.
E. Compressors:
1. Reciprocating, semi-hermetic type only and shall
be located for easy servicing.
63
Guide specifications — 48FJ,JJ (cont)
F.
G.
H.
I.
J.
64
2. Mounted on spring-vibration isolators with an isolation efficiency of no less than 95%.
3. Each equipped with an automatically reversible oil
pump, operating oil charge, insert-type crankcase
heater to prevent refrigerant migration to the
compressor.
4. Equipped with suction and discharge service valves.
5. Maximum operating speed of 1800 rpm (30 r/s).
Coils:
1. Evaporator Coil:
a. Intertwined circuiting constructed of aluminum fins mechanically bonded to seamless
copper tubes.
b. Full-face active type during full and part load
conditions.
c. Coils shall be leak tested at 150 psig
(1034 kPa) and pressure tested at 450 psig
(3103 kPa).
2. Condenser Coil:
a. Constructed of aluminum fins mechanically
bonded to seamless copper tubes.
b. Air-cooled condenser coils shall be leak tested
at 150 psig (1034 kPa) and pressure tested
at 450 psig (3403 kPa).
3. All coils shall be same manufacturer as unit.
Outdoor-Air Hood Assembly:
Factory-installed manual outdoor air damper shall allow intake of up to 25% nominal airflow (on units not
equipped with optional economizer).
Heating Section:
1. Induced-draft combustion type with energy saving
intermittent spark ignition pilot flame systems and
redundant main gas valves.
2. The heat exchanger shall be of the tubular section
type constructed of a minimum of 20-gage steel
coated with a nominal 1.4 mil aluminum-silicone
alloy for corrosion resistance.
3. Burners shall be of the in-shot type constructed of
DACROMET 320 steel.
4. All gas piping shall enter the unit cabinet at a single
location.
Refrigerant Components:
Unit shall be equipped with dual refrigerant circuits,
each containing:
1. Liquid line service valve.
2. Filter drier.
3. Moisture indicating sight glass.
4. Thermostatic expansion valve.
5. Fusible plug.
Filter Section:
Filter section shall consist of 2-in. (51 mm) thick, disposable fiberglass filters of commercially available sizes.
K. Controls, Safeties, and Diagnostics:
1. Controls:
a. Unit shall be complete with self-contained
demand-oriented control system.
b. Unit staging shall be 2-stage cool and 2-stage
heat.
c. Unit shall respond in response to discrete step
space temperature controller.
d. Thermostats shall be of the 2-stage heat/
2-stage cool type for heating and cooling.
e. Set points must have adjustable deadband between heat and cool.
2. Safeties:
Unit components shall be equipped with the following protections:
a. Compressors:
1) Overcurrent using calibrated cir-cuit breakers (shuts down individual compressor).
2) Crankcase heaters.
3) High-pressure switch (shuts down individual compressor, automatic reset type).
4) Low-pressure switch (shuts down individual
compressor, automatic reset type).
b. Heating Section:
1) Combustion airflow-proving pressure.
2) Temperature limit switches.
3) Flame rollout switches.
L. Operating Characteristics:
1. Unit shall be capable of starting and running at
115 F (46 C) ambient outdoor temperature per
maximum load criteria of ARI Standard 340/360.
2. Unit shall be capable of mechanical cooling
operation down to 45 F (7 C) ambient outdoor
temperature.
3. Unit shall provide multi-stage cooling capability.
4. Unit shall provide 2 stages of heating capability.
M. Motors:
1. Compressor motors shall be cooled by suction gas
passing over motor windings.
2. Condenser-fan motors shall be 3-phase, totally enclosed type with permanently lubricated ball bearings and internal overtemperature protection.
3. Evaporator blower motor shall be 3-phase, NEMA
rated, Open Dripproof (ODP), ball bearing type,
with efficiencies per EPACT requirements.
N. Electrical Requirements:
All unit power wiring shall enter unit cabinet at a single
location.
O. Special Features:
1. Roof Curb:
a. Size 034-048 Units:
Formed 14-gage galvanized steel with wood
nailer. Supports full perimeter of unit.
b. Size 054-074 Units:
Formed 14-gage galvanized steel with wood
nailer strip as perimeter curb supporting the
air-handling portion of unit, and rail for supporting the condenser portion of the unit.
2. Roof Curb Condenser Section (Accessory for 054074 Units only):
Formed 14-gage galvanized steel with wood nailer
strip for supporting condenser section of unit to
complete a full perimeter curb under entire unit.
3. Integrated Economizer:
Enthalpy controlled integrated type consisting of
dampers, motors, and linkages in conjunction with
control system to provide primary cooling using
outdoor air, enthalpy permitting, supplemented
with mechanical cooling when necessary.
a. Dampers shall be low leakage type, not to
exceed 1% leakage at 1 in. wg (249 Pa) pressure differential when fully closed.
b. Motors shall have a spring return feature
which shuts dampers upon a power interruption or unit shutdown.
c. Equipped with solid-state enthalpy control that
is capable of sensing outdoor-air heat content (temperature and humidity) and controlling economizer cut-in point at the most economical level.
4. 100% Modulating Power Exhaust:
Package shall include 2 double-width, doubleinlet centrifugal belt drive, forward-curved power
exhaust fans with modulating device at the discharge of the lead fan to maintain a field adjustable interior space pressure set point.
a. Fan bearings shall be of the pillow block type
with an average design life of 200,000 hours.
b. Fans shall be statically and dynamically
balanced.
5. Non-Modulating Power Exhaust:
Package shall include 2 double-width, doubleinlet centrifugal belt drive, forward-curved power
exhaust fans, staged according to economizer
damper opening position (field-adjustable).
a. Fan bearings shall be of the pillow block type
with an average design life of 200,000 hours.
b. Fans shall be statically and dynamically
balanced.
6. Barometric Relief Damper Package:
a. Package shall relieve excess internal pressure and consist of damper assembly, hoods,
damper screens, seal strips and required
hardware.
b. Damper assemblies shall close due to gravity
upon unit shutoff.
7. Pleated Filters:
Unit shall be factory equipped with medium efficiency pleated filters having the following
characteristics:
a. Efficiency of no less than 30% based on testing per ASHRAE Standard 52.
b. Minimum average arrestance of 90%.
8. Bag Filters with Prefilters:
Unit shall be factory equipped with bag filters and
2-in. (51mm) prefilters, and shall have an average efficiency of 90% based on testing per
ASHRAE Standard 52.
9. Premium Efficiency Motors (Supply Fan/Exhaust
Fans):
Unit shall be factory-equipped with premium efficiency motors on Supply Fan (and Power Exhaust Fans) with NEMA efficiency ratings per
contract drawings. Available all motor sizes.
10. LP (Liquid Propane) Conversion Kit:
Provides all necessary hardware and labels for
conversion from natural gas to LP gas.
11. Non-Fused Disconnect:
A non-fused electrical disconnect for main unit
power shall be factory installed. The disconnect
shall be an interlocking through-the-door type.
Disconnect shall be sized to accommodate fieldinstallation of power exhaust package.
12. Head Pressure Control:
Package shall be capable of modulating outdoor
fan speed to maintain condensing temperature
between 90 and 110 F (32 and 43 C) at outdoor
ambient temperatures down to −20 F (−29 C).
13. Suction Cut-off Unloaders:
Unloader packages shall contain suction cut-off
type designs, complete with replacement cylinder head assembly, unloader valve (electric or suction pressure activated) and necessary gaskets.
14. Hot Gas Bypass:
Unit shall be factory equipped with hot gas bypass valve, shutoff valve and tubing to maintain
capacity control at minimal cooling loads.
15. Optional Condenser Coil Materials:
Unit shall be factory equipped with condenser
coils made from copper tubes and copper fins,
or copper tubes with heresite-coated copper fins
(post-coating process).
16. Condenser Coil Protective Coating:
Condenser coil aluminum fins shall be coated with
protective coating. Coating material shall be
an epoxy phenolic organic coating, capable of
1000 hr salt spray exposure per ASTM B117
test and ASTM DI 654 evaluation, 2000 hr corrosion weathering cycle and moist sulfur dioxide
exposure per DIN 50018 (ASTM G87) test and
ASTM DI 654 and ASTM D714 evaluation.
17. Condenser Coil Hail Guard:
Canted face enclosure and welded wire grille complete with support retainers and fasteners shall
be provided for protection of condenser coils.
Field-assembled.
65
Guide specifications 48FJ,JJ (cont)
18. Differential Enthalpy Sensor:
a. For use with economizer only.
b. Capable of comparing heat content (temperature and humidity) of outdoor and return air
and controlling economizer cut-in point at the
most economical level.
19. Communicating Programmable Thermostat
System:
Thermostat system shall consist of a single-zone
programmable communicating thermostat with
unit controller relay pack. The system shall be
capable of stand-alone use or networked to form
a communication bus. The thermostats shall operate and be configured without the use of a computer, but shall provide the capability of both local and remote network access through a
compatible computer.
System shall be capable of:
a. Self-test on-board diagnostics.
b. On-board temperature sensor. Shall also be
capable of remote space sensing when using
Remote Room Sensor.
c. On-board time clock capable of broadcasting
to the network.
d. 365 day scheduling with integral Daylight Savings and leap year capability.
e. 18 holiday schedules with up to 99 days per
holiday schedule.
f. Establishing, adjusting and storing both an
occupied and unoccupied program format on
a daily basis. Schedule increments shall be
in 1 minute sectors with 8 program periods
available.
g. Integral unoccupied override capability to provide up to 4 hours of additional occupied operation without additional programming.
h. LCD display capable of displaying separate
heating and cooling set points and additional
diagnostic information.
66
i. Displaying temperature information in Fahrenheit or Celsius temperature scales in increments of one tenth of a degree.
j. Operating the system fan automatically or
continuously during the occupied mode.
k. Automatic or manual changeover between
heating and cooling.
l. Protecting system configuration from tampering and misuse by providing 4 levels of
security access into the thermostat control.
m. Preventing unnecessary operation of second
stage when on-board trending indicates that
first stage can satisfy space demand.
n. Providing protection from unit being intermittently sequenced from heating to cooling
until a minimum 5 minute time delay has
elapsed.
o. Displaying system diagnostics to indicate system operation, operating alarms or service
requirements. Alarms shall include: space temperature, fan status, filter status, IAQ status,
and unit supply air temperature in both heating and cooling.
p. Being interfaced to a computer either remotely or locally for purposes of diagnostics,
programming, monitoring and data logging.
20. Non-programmable Thermostats and Subbases:
Thermostat with subbase shall provide staged
cooling and heating with automatic (or manual)
changeover, fan control, and an indicator light.
21. Accessory Compressor Cycle Delay:
The compressor cycle delay prevents rapid
cycling of the compressor by preventing it from
restarting for a minimum of 5 minutes after
shutdown.
Guide specifications — 48FK,JK
Packaged Rooftop Cooling Unit
With Gas Heat —
Variable Air Volume Application
HVAC Guide Specifications —
Section 48FK,JK
Size Range: 30 to 75 Tons, Nominal
Carrier Model Number: 48FK (Vertical Supply/Return)
48JK (Vertical Supply/Return,
Extended Chassis)
Part 1 — General
1.01 SYSTEM DESCRIPTION
Outdoor, roof-curb mounted, electronically controlled
heating and cooling unit utilizing semi-hermetic reciprocating type compressors for cooling duty and utilizing gas combustion for heating duty. Units shall
discharge supply air downward as shown on the contract drawings.
1.02 QUALITY ASSURANCE
A. Unit shall be rated in accordance with ARI Standard
340/360.
B. Unit shall be designed to conform to ANSI/ASHRAE
15, latest revision, UL Standard 1995, and National
Electrical Code
C. Unit shall be listed by ETL and ETL, Canada as a total package.
D. Roof curb shall be NRCA approved.
E. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation.
1.03 DELIVERY, STORAGE, AND HANDLING
Unit shall be stored and handled per manufacturer’s
recommendations.
Part 2 — Products
2.01 EQUIPMENT
A. Factory-assembled, single-piece [heating and] cooling
unit. Contained within the unit enclosure shall be
all factory wiring, piping, refrigerant charge (R-22),
operating oil charge, dual refrigerant circuits,
microprocessor-based control system and associated
hardware, and all special features required prior to
field start-up.
B. Extended Chassis (48JK units only):
Extended chassis designs shall contain an added length
module, after the evaporator section, as shown in the
contract drawings. Module shall contain tracks to accept field-supplied and installed auxiliary heating coil.
C. Unit Cabinet:
1. Constructed of galvanized steel, bonderized and
primer-coated on both sides and coated with a
baked polyester thermosetting powdercoating finish on the outer surface.
2. Unit casing shall be capable of withstanding ASTM
Standard B117 500-hour salt spray test.
3. Sides shall have man size insulated hinged access
doors for easy access to the control box and other
areas requiring servicing. Each door shall seal against
a rubber gasket to prevent air and water leakage,
and is equipped to permit ease and safety during
servicing.
4. Interior cabinet surfaces (except heat exchanger
section) shall be insulated with flexible fire-retardant
dual-density fiberglass blanket, coated on the air
side. Insulation coating shall be cleanable and shall
contain an EPA-registered immobilized antimicrobial agent to effectively resists the growth of bacteria and fungi as proven by tests in accordance
with ASTM Standards G21 and G22.
5. Interior cabinet surfaces within heat exchanger section shall be lined with sheet metal on all surfaces,
insulated on the side opposite the air stream.
6. Insulation shall be applied by means of adhesion
using a water reducible adhesive sprayed onto interior surface. Adhesive shall maintain a satisfactory adhesion and cohesion within the temperature range of −20 to 180 F (−29 to 82 C) and
have excellent resistance to water and water vapor when cured.
7. Unit shall contain a sloped drain pan, to prevent
standing water from accumulating. Pan shall be
fabricated of hot dipped zinc coated minimum
spangle steel. Zinc coating shall be G90 designation according to ASTM Standard A653. Unit shall
contain a factory-installed nonferrous main condensate drain connection.
8. Units shall be equipped with lifting lugs to facilitate overhead rigging.
D. Fans:
1. Evaporator Fan:
a. Double-width, double-inlet, centrifugal belt
driven forward-curved type with single outlet
discharge.
b. Fixed-pitch pulley drive.
c. Mounted on a structural steel sled with flexible outlet connection consisting of canvas
transitions.
d. Fan shaft bearing shall be of the pillow-block
type with lubrication provisions.
e. Statically and dynamically balanced.
f. Evaporator-fan shaft bearings shall have a life
of 200,000 hours at design operating conditions in accordance with ANSI B3.15.
g. Solid fan shaft construction.
h. Unit shall be equipped with 5 in. (127 mm)
(034-048 units) or 7 in. (178 mm) (054-074
units) spring vibration isolators, each with 2-in.
(51 mm) deflection.
2. Condenser Fans:
a. Direct-driven propeller type only.
b. Discharge air vertically upward.
c. Protected by PVC-coated steel wire safety
guards.
d. Statically and dynamically balanced.
e. Three-phase, totally enclosed motors.
67
Guide specifications — 48FK,JK (cont)
E. Compressors:
1. Reciprocating, semi-hermetic type only; shall be
located for easy servicing.
2. Equipped with a suction-cutoff type electrically controlled unloader(s).
3. Mounted on spring-vibration isolators with an isolation efficiency of no less than 95%.
4. Each equipped with an automatically reversible oil
pump, operating oil charge, insert-type crankcase
heater to prevent refrigerant migration to the
compressor.
5. Equipped with suction and discharge service valves.
6. Maximum operating speed of 1800 rpm (30 r/s).
F. Coils:
1. Evaporator Coil:
a. Intertwined circuiting constructed of aluminum fins mechanically bonded to seamless
copper tubes.
b. Full-face active type during full and part load
conditions.
c. Coils shall be leak tested at 150 psig
(1034 kPa) and pressure tested at 450 psig
(3103 kPa).
2. Condenser Coils:
a. Constructed of aluminum fins mechanically
bonded to seamless copper tubes.
b. Air-cooled condenser coils shall be leak tested
at 150 psig (1034 kPa) and pressure tested
at 450 psig (3403 kPa).
c. All coils shall be same manufacturer as unit.
G. Outdoor-air Hood Assembly
Factory-installed manual outdoor-air damper shall allow intake of up to 25 nominal airflow (on units not
equipped with optional economizer).
H. Heating Section:
1. Induced-draft combustion type with energy saving
intermittent spark ignition pilot flame systems and
redundant main gas valves.
2. The heat exchanger shall be of the tubular section
type constructed of a minimum of 20-gage steel
coated with a nominal 1.4 mil aluminum-silicone
alloy for corrosion resistance.
3. Burners shall be of the in-shot type constructed of
DACROMET 320 steel.
4. All gas piping shall enter the unit cabinet at a single
location.
I. Refrigerant Components:
Unit shall be equipped with dual refrigerant circuits,
each containing:
1. Liquid line service valve.
2. Filter drier.
3. Moisture indicating sight glass.
4. Thermostatic expansion valve.
5. Fusible plug.
68
J. Filter Section:
Filter section shall consist of 2-in. (51 mm) thick, disposable fiberglass filters of commercially available sizes.
K. Controls, Safeties, and Diagnostics:
1. Controls:
a. Control shall be accomplished through the
use of a factory-installed, microprocessorbased control system and associated electronic and electrical hardware. Control
system shall determine control sequences
through monitoring the following operational
variables:
1) Evaporator leaving-air temperature.
2) Return air temperature.
3) Saturated condensing temperature.
4) Economizer position.
5) Leaving air temperature set point.
6) Economizer minimum damper position
set point.
7) Morning warm-up set point.
8) Reset limit set point (if installed).
9) Space temperature (if reset installed).
10) Demand limit set point(s) (if installed).
b. Controls shall be capable of performing the
following functions:
1) Capacity control based on discharge-air
temperature and compensated by rate of
change of return-air temperature. Capacity control shall be accomplished through
the use of electric unloaders and compressor staging.
2) Perform a quick test to check the status
of all input and output signals to the
control system using diagnostic display
module.
3) Control of integrated economizer operation based on air temperature leaving unit.
4) Single-step or two-step demand limit
control.
5) Condenser-fan cycling to maintain correct head pressure down to 45 F (7 C).
6) Space temperature reset of leaving air temperature set point.
7) Demand limit of compressor staging
capacity.
8) Morning warm-up.
2. Safeties:
Unit components shall be equipped with the following protections:
a. Compressors:
1) Overcurrent using calibrated circuit breakers (shuts down individual compressor).
2) Crankcase heaters.
3) High-pressure switch (shuts down individual compressor, automatic reset type).
4) Low-pressure switch (shuts down individual
compressor, automatic reset type).
b.
L.
M.
N.
O.
Heating Section:
1) Combustion airflow-proving pressure.
2) Temperature limit switches.
3) Flame rollout switches.
3. Diagnostics:
a. Diagnostic display module shall be capable of
indicating a safety lockout condition through
displaying a 2-digit code for which a legend
shall be provided in the control panel.
b. Diagnostic module must also be capable of
displaying outputs of microprocessor-controlled
‘‘quick test’’ to verify operation of every switch,
thermistor, potentiometer, actuator motor,
fan, and compressor before unit is started.
Operating Characteristics:
1. Unit shall be capable of starting and running at
115 F (46 C) ambient outdoor temperature per
maximum load criteria of ARI Standard 340/360.
2. Unit shall be capable of mechanical cooling operation down to 45 F (7 C) ambient outdoor
temperature.
3. Unit shall provide multi-stage cooling capability.
4. Unit shall provide 1 stage of heating capability for
morning warm-up.
Motors:
1. Compressor motors shall be cooled by suction gas
passing over motor windings.
2. Condenser-fan motors shall be 3-phase, totally enclosed type with permanently lubricated ball bearings and internal overtemperature protection.
3. Evaporator blower motor shall be of the 3-phase,
NEMA rated, Open Dripproof (ODP), ball bearing
type, with efficiencies per EPACT requirements.
Electrical Requirements:
All unit power wiring shall enter unit cabinet at a single
location.
Special Features:
1. Roof Curb:
a. Size 034-048 Units:
Formed 14-gage galvanized steel with wood
nailer. Supports full perimeter of unit.
b. Size 054-074 Units:
Formed 14-gage galvanized steel with wood
nailer strip as perimeter curb supporting the
air handling portion of unit, and rail for supporting the condenser portion of the unit.
2. Roof Curb Condenser Section (Accessory for 054074 Units Only):
Formed 14-gage galvanized steel with wood nailer
strip for supporting condenser section of the unit
to complete a full perimeter curb under entire
unit
3. Integrated Economizer:
Enthalpy controlled integrated type consisting of
dampers, motor, and linkages in conjunction with
control system to provide primary cooling using
outdoor air, enthalpy permitting, supplemented
4.
5.
6.
7.
8.
with mechanical cooling when necessary.
a. Dampers shall be a low-leakage type, not to
exceed 1% leakage and 1 in. wg (249 Pa)
pressure differential when fully closed.
b. Motors shall have a spring-return feature which
shuts dampers upon a power interruption or
unit shutdown.
c. Equipped with a solid-state enthalpy control
that is capable of sensing outdoor-air heat content (temperature and humidity) and controlling economizer cut-in point at most economical level.
100% Modulating Power Exhaust:
Package shall include 2 double-width, doubleinlet centrifugal belt drive, forward-curved power
exhaust fans with modulating device at the discharge of the lead fan to maintain a field adjustable interior space pressure set point.
a. Fan bearings shall be of the pillow block type
with an average design life of 200,000 hours.
b. Fans shall be statically and dynamically
balanced.
Barometric Relief Package:
a. Package shall relieve excess internal pressure and consist of damper assemblies, hoods,
damper screens, seal strips and required hardware.
b. Damper assemblies shall close due to gravity
upon unit shutoff.
Pleated Filters:
Unit shall be factory equipped with medium
efficiency pleated filters having the following
characteristics:
a. Efficiency of no less than 30% based on testing per ASHRAE Standard 52.
b. Minimum average arrestance of 90%.
Bag Filters with Prefilters:
Unit shall be factory equipped with bag filters and
2-in. (51mm) prefilters, and shall have an average efficiency of 90% based on testing per
ASHRAE Standard 52.
Supply Fan Capacity Control / Inlet Guide Vanes:
Inlet Guide Vane option shall include:
a. Factory-installed double guide vane assemblies, consisting of rolled steel support rings
and actuating rings, galvanized steel vanes capable of opening to full 90-deg position, and
pivot bearings, designed for 250,000 cycles
(full-open to full-closed) and protected against
corrosion (painted, galvanized, or plated).
b. Factory-mounted single actuator, with factorymounted linkages to modulate both inlet rings.
c. Factory-mounted duct pressure sensing controller: Differential Pressure Switch, with adjustable set point range (1.1 to 3.5 in. wg
[274 to 872 Pa]) and null range.
d. Low pressure reference tube factory installed.
69
Guide specifications — 48FK,JK (cont)
9. Supply Fan Capacity Control/Variable Frequency
Drive:
Unit shall be equipped with Variable Frequency
Drive (VFD, inverter) The VFD shall be provided
with a metal enclosure and shall be factorymounted, -wired and -tested. The VFD shall control motor speed to maintain set point static pressure control at the supply duct sensor tube location.
The VFD shall be field-adjustable to maintain supply duct static pressure set point from 0.0-in. wg
to 3.5-in. wg (0 to 872 Pa), adjust via VFD
keypad.
A pressure transducer shall be factory-mounted
and -wired. (Control tubing from sensor tube location to transducer shall be field-supplied and
-installed.) Transducer shall provide a 4-20 mA
signal directly to the VFD.
The variable speed drive shall include the following features:
a. Full digital control.
b. Insulated Gate Bi-Polar Transistors (IGBT)
used to produce the output pulse width modulated (PWM) waveform, allowing for quiet motor operation.
c. Inverters capable of operation at a frequency
of 8 kHz so no acoustic noise shall be produced by the motor.
d. NEMA 1 metal enclosure for reduction of RFI
(radio frequency interference).
e. Electronic thermal overload protection.
f. Critical frequency avoidance.
g. Digital display keyboard module, mounted on
the VFD enclosure.
h. Self diagnostics.
i. Personal lockout code for additional security.
j. PID set point control.
k. RS232C/RS485 capability (accessory card
source required).
10. VFD Remote Display Service Module:
Accessory package shall contain hand-held VFD
control display-keypad module and cable assembly with quick-connect plug to connect to mating plug on VFD, to facilitate VFD diagnostics
and servicing.
11. Premium Efficiency Motors (Supply Fan/Exhaust
Fans):
Unit shall be factory-equipped with premium efficiency motors on Supply Fan (and Power Exhaust Fans) with NEMA efficiency ratings per
contract drawings. Available all motor sizes.
12. LP (Liquid Propane) Conversion Kit: Provides all
necessary hardware and labels for conversion
from natural gas to LP gas.
70
13. Non-Fused Disconnect:
A non-fused electrical disconnect for main unit
power shall be factory installed. The disconnect
shall be an interlocking through-the-door type.
Disconnect shall be sized to accommodate fieldinstallation of power exhaust package.
14. Space Temperature Reset Package:
Package shall consist of a reset board and a thermistor. Package shall enable unit control to sense
space temperature and reset leaving air temperature set point upward to prevent overcooling of
the conditioned space.
15. Two-Step Demand Limit Control:
Package shall allow external demand limit control device to limit the capacity of the unit to userselected set points as percentages of the unit capacity stages.
16. Head Pressure Control:
Package shall be capable of modulating outdoor
fan speed to maintain condensing temperature
between 90 and 110 F (32 and 43 C) at outdoor
ambient temperatures down to −20 F (−29 C).
17. Differential Enthalpy Sensor:
a. For use with economizer only.
b. Capable of comparing heat content (temperature and humidity) of outdoor and return air
and controlling economizer cut-in point at the
most economical level.
18. Hot Gas Bypass:
Unit shall be factory equipped with hot gas bypass valve, shutoff valve, and tubing to maintain
capacity control at minimal cooling loads.
19. Optional Condenser Coil Materials:
Unit shall be factory equipped with condenser
coils made from copper tubes and copper fins,
or copper tubes with heresite-coated copper fins
(post-coating process).
20. Condenser Coil Protective Coating:
Condenser coil aluminum fins shall be coated with
protective coating. Coating material shall be
an epoxy phenolic organic coating, capable of
1000 hr salt spray exposure per ASTM B117
test and ASTM DI 654 evaluation, 2000 hr corrosion weathering cycle and moist sulfur dioxide
exposure per DIN 50018 (ASTM G87) test and
ASTM DI 654 and ASTM D714 evaluation.
21. Condenser Coil Hail Guard:
Canted face enclosure and welded wire grille complete with support retainers and fasteners shall
be provided for protection of condenser coils.
Field-assembled.
22. Remote VAV Control Panel:
The remote control panel shall provide a time
clock control function to the VAV air conditioner
unit. Panel shall contain:
a. Programmable 7-day electronic clock suitable for ON/OFF control of the VAV unit.
Time clock shall have a capacitor backup to
provide up to 100 hours of control and operation in the event of a power failure.
b. Manual bypass switch to provide for temporary override of the occupied mode. Switch
shall permit maximum five-hour bypass, with
spring return.
c. Eight indicator lights (24-vac). Six lights shall
be identified (OCCUPIED, UNOCCUPIED,
HEATING, COOLING, FAN, POWER). Two
lights shall be unidentified and may be used
as desired.
d. Sheet metal enclosure with keyed latch provided to prevent tampering with clock settings. Enclosure shall be installed in an indoor
or weatherproofed location.
23. Accessory Compressor Cycle Delay:
The compressor cycle delay prevents rapid cycling of the compressor by preventing it from restarting for a minimum of 5 minutes after shutdown.
71
Carrier Corporation • Syracuse, New York 13221
6-98
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1
Tab 1a
Page 72
Catalog No. 524-879
Printed in U.S.A.
PC 111
Form 48F,J-1PD
Replaces: New