INSTALLATION AND OPERATING MANUAL
Series CASSETTE
WARNING
Before using the equipment, please read this manual carefully and carry correctly out all the operations. The section
explains how to use the equipment safety and correctly; please be sure to follow these instructions.
MIU.CSGH.GB.000.05/11
INDEX
1. TECHNICAL DATA
2. INSTALLATION MANUAL
2.1.
SAFETY CONSIDERATION
2.2.
OPERATING LIMITS
2.3.
BEFORE INSTALLATION
2.4.
SELECT LOCATION
2.5.
INSTALLATION METHOD
2.6.
DRAIN PIPEWORK
2.7.
WATER CONNECTIONS
2.8
PIPE CONNECTION DIMENSIONAL DRAWINGS
2.9.
EXTENEDED DRAIN PAN ACCESSORY
2.10.
INSTALLATION PROCEDUES
2.11.
INTERCONNECTING WIRING
2.12.
MOUTING FRONT PANEL AND FILTER REMOVAL
2.13.
PRELIMINARY CHECKS BEFORE START-UP
2.14.
MAINTENANCE
2.15
AIR VENT AND WATER PURGE
2.16
REPLACING MOTOR AND FAN BLOWER
2.17
REPLACING CONDENSATE PUMP AND INTERNAL VALVE
2.18
REPLACING CONTROL BOX
2.19
INSTALL ELECTRIC HEATER
2.20
FRESH AIR RENEWAL
2.21
BRANCH DUCT AND FRESH AIR DUCT INSTALLATION
2.22
BLANKING PLATES
2
4
4
4
5
5
6
12
12
13
15
15
15
17
18
18
19
19
20
21
22
22
24
27
3. CONFIGURATION SETTING OF THE UNIT CONTROL
3.1
REAL TIME CLOCK CONTROL HANDSET
28
3.2
REAL TIME CLOCK WIRED WALL PAD CONTROL
30
3.3
HARDWARE CONFIGURATION
32
3.4
COMPUTER MANAGEMENT SYSTEM CONTROL – CONTROL BOX I
34
3.5
COMPUTER MANAGEMENT SYSTEM CONTROL – CONTROL BOX II & III
56
4. TROUBLESHOOTING
62
5. DIMENSIONAL DRAWINGS
63
Page.1
1. TECHNICAL DATA
2 PIPE SYSTEM CASSETTE
CH2O CH2O
20G
30G
CH2O
40G
CH2O
50G
CH2O
60H
CH2O
70H
CH2O
100H
CH2O
120H
Single
Single
Single
Single
Single
Single
Single
Single
L
380
2402
2002
2.37
1.70
1.41
575
290
2002
3.20
2.06
1.41
722
5222
4502
4.08
3.10
2.70
810
617
4502
4.56
3.76
2.70
960
8202
7002
5.60
5.10
3.57
1300
960
7002
6.90
5.60
3.57
1950
13802
10902
10.00
7.83
6.56
2290
1950
10902
11.70
10.00
6.56
H
1.89
2.50
3.00
3.17
4.37
5.06
7.94
8.86
1.35
1.62
2.45
2.85
3.85
4.37
6.45
7.94
1.11
1.11
2.15
2.15
2.96
2.96
5.58
5.58
Model
Numero di ventilatori
Number Of Fan Blowers
H
Total Air Flow1
M
m3/hr
L
H
Cooling Capacity 1,3
M
1
M
Sensible Cooling Capacity
kW
kW
L
2.80
2.00
1.60
4.92
3.98
3.25
3.65
5.29
6.15
6.72
8.28
11.48
13.70
kW
M
Heating Capacity@50°C1,4
2.40
4.10
4.90
6.10
6.72
9.39
11.48
L
1.60
3.50
3.50
4.28
4.28
7.87
7.87
H
kW
6.58
7.80
8.90
11.40
12.72
18.65
20.87
M
kW
Heating Capacity@70°C5
4.30
6.92
7.40
10.13
11.40
16.60
18.65
L
kW
3.25
6.58
6.58
7.52
7.52
15.20
15.20
Noise Level @ 1 M (H/M/L)
dB(A) 34/30/27 37/32/27 44/35/30
46/40/30
42/40/36 47 / 40 / 36 50 / 42 / 39 52/46/39
dB(A) 42/37/35 48/40/35 57/46/42 60 / 52 / 42 55/50/46.8 65 / 57 / 46.8 65 / 58 / 47 70 / 65 / 47
Sound Power – Lwi 1(H/M/L)
Power Supply
(V/Ph/Hz)
230/1/50
38/28/2
267 / 187 / 310 /267 /
1
Watt
50/32/24 56/33/26 85 / 43 / 26 89/59/47 146 / 82 / 46
Input Power (H/M/L)
4
100
100
Running Current
Amp.
0.17
0.26
0.24
0.37
0.36
0.64
1.16
1.35
Starting Current
Amp.
0.51
0.78
0.72
1.11
1.08
1.90
3.48
4.04
Electric Heater Power Input
kW
1.0
1.0
2.0
2.0
3.0
3.0
3.0
4.0
Operation Control & Thermostat
Optional Remote Control Handset and / or Wired Wall Pad
H
Cooling Water Flow Rate
(Hi-Speed)
Cooling Water Pressure Drop1
(Hi-Speed)
Cooling Water Content
Litre
Cond. Drain Connection I.D.
mm [ in ]
Dimensions
L/h
419
601
753
810
1047
1226
1767
2073
kPa
6.5
12.8
30
36.8
27.7
36.9
38
49
L
mm
W
mm
H
mm
Panel Dimensions (L x W x H)
mm
Net Weight
Kg
Connection Method
Water
Connection
In
mm(in)
Out
mm(in)
1.25
1.56
1.78
2.41
19.05 [ 3/4 ]
580
580
255
28
730
730
290
260
680 × 680 × 28
830 x 830 x 28
30
36
36
Socket (Threaded Female)
830
830
290
980 x 980 x 28
50
50`
19.05(3/4)
Table 1
1
2
3
4
5
Unit completed with frontal panel.
Electric heater must only be used with speeds 5,4,3 in order to ensure correct functioning. Please refer to page 22 for electric heater installation
guide.
Cooling Capacity is tested under the condition 27 °C Dry Bulb /19 °C Wet Bulb entering air temperature, 7 °C entering water and 12 °C leaving
water temperature with water flow rates specified.
Heating Capacity is tested under the condition 20 °C Dry Bulb entering air temperature, 50 °C entering water temperature with water flow rates
same as for the cooling test.
Heating Capacity is tested under the condition 20 °C Dry Bulb entering air temperature, 70 °C entering water temperature and 60 °C leaving
water temperature.
Page.2
4 PIPE SYSTEM CASSETTE
Model
CH2O 40GB1
Number Of Fan Blowers
Single
810
617
4507
3.6
3.02
2.42
2.94
2.60
2.22
2.18
1.90
1.73
4.43
3.84
3.41
46/40/30
60/52/42
H
Total flow 6 7
M
L
H
Cooling Capacity6 8
M
L
H
Sensible Cooling Capacity 6
8
M
L
H
Heating Capacity@50°C 9
M
L
H
Heating Capacity@70°C
10
M
L
Sound pressure Level @ 1 M (H/M/L)
Sound Power – Lwi (H/M/L) Power Supply
Input Power(H/M/L)
Fan Motor Running Current
Fan Motor Starting Current
Operation Control & Thermostat
Cooling Water Flow Rate
Heating Water Flow Rate
Cooling Water Pressure Drop
Heating Water Pressure Drop
Cooling Water Content
Heating Water Content
Cond. Drain Connection I.D.
L
Dimensions
W
H
Panel Dimensions
(L x W x H)
Net Weight
6
7
8
9
10
Page.3
CH2O 80HB1
Single
Single
1300
2290
m3/hr
960
1950
7007
10907
5.75
7.92
kW
5.21
6.82
3.18
5.34
4.46
6.96
kW
4.20
6.28
2.76
5.2
2.68
4.90
kW
2.46
4.38
1.83
3.86
5.03
9.65
kW
4.63
8.87
3.42
7.56
dB(A)
50/42/36
54/50/39
dB(A)
65 / 57 / 46.8
70 / 65 / 47
(V/Ph/Hz)
230/1/50
Watt
85/52/42
146/83/47
310/267/100
Amp.
0.37
0.64
1.35
Amp.
1.11
1.9
4.04
Optional Remote Control Handset and / or Wired Wall Pad,
L/h
636
1007
1400
L/h
380
431
827
kPa
14.7
40.3
26.8
kPa
3.5
7.5
13.3
Litre
1.07
1.37
1.67
Litre
0.49
0.41
0.74
mm [ in ]
19.05 [ 3/4 ]
mm
580
730
830
mm
580
730
830
mm
290
290
290
mm
680×680×28
830x30x28
Kg
30
36
Socket (Threaded Female)
Connection Method
Water
Connection
CH2O 60HB1
In
mm [ in ]
Out
mm [ in ]
980 x 980 x 28
50
19.05 [ 3/4 ]
Unit completed with frontal panel.
Electric heater must only be used with speeds 5,4,3 in order to ensure correct functioning. Please refer to page 22 for electric heater installation
guide.
Cooling Capacity is tested under the condition 27 °C Dry Bulb /19 °C Wet Bulb entering air temperature, 7 °C entering water and 12 °C leaving
water temperature with water flow rates specified.
Heating Capacity is tested under the condition 20 °C Dry Bulb entering air temperature, 50 °C entering water temperature with water flow rates
same as for the cooling test.
Heating Capacity is tested under the condition 20 °C Dry Bulb entering air temperature, 70 °C entering water temperature and 60 °C leaving
water.
2.
INSTALLATION MANUAL
The appliance should be installed in accordance with national wiring regulation.
2.1 SAFETY CONSIDERATIONS
When working on air conditioning equipment, observe precautions in this manual, and on plates and tables attached to the unit.
Follow all safety codes and other safety precautions that may apply.
Installing and servicing air conditioning, equipment should be done by trained and qualified service personnel only. Untrained
personnel can perform only basic maintenance functions such as cleaning coils, filters and replacing filters.
Ensure that the electrical supply and frequency are adequate for the operating current required for this specific installation.
•
•
•
Before any service or maintenance operations turn off the main power switch.
•
The manufacturer denies any responsibility and warranty shall be void if these installation instructions are not observed.
•
Never switch off the power main supply when unit is operating in the cooling cycle.
To switch off the fan coil unit use only the ON-OFF button on the control panel.
This avoids over-flow in the drain pan, by allowing the pump to drain any condensate water due to regulating valve losses when
chiller is working.
2.2.
OPERATING LIMITS
Power supply
•
Volt
Phase
Hz
230
1
50
Water circuit
- Minimum entering water temperature: +2 °C
- Maximum entering water temperature: +80 °C
-Water side maximum pressure: 1400 kPa (142 m.w.c)
Page.4
2.3.
BEFORE INSTALLATION
The installation site must be established by the system designer or other qualified professional, taking account of the technical requisites
and current standards and legislation.
CH2O/CH2O B1 fan coils must be installed by an authorized company only.
CH2O/CH2O B1 fan coils are designed for installation in a false ceiling, for intake of fresh air from outside and for deviation of a small
part of the treated air for discharge in a neighboring room.
They must be installed in such a way as to enable treated air to circulate throughout the room and in respect of the minimum distances
required for technical maintenance operations.
•
•
•
•
•
•
•
It is advisable to place the unit close to the installation site without removing it from the packaging.
Do not put heavy tools or weights on the packaging.
Upon receipt the unit and the packaging must be checked for damage sustained in transit and if necessary, a damage claim must
be filed with the shipping company.
Check immediately for installation accessories inside the packaging.
Do not lift unit by the condensate drain discharge pipe or by the water connections; lift it by the four corners.(Fig.1)
The grille panel is separately packed for maximum protection.
Check and note the unit serial number.
Fig.2
Fig.1
Coperchio
COVER
Page.5
2.4.
SELECT LOCATION
•
•
•
•
•
•
•
•
Do not install the unit in rooms where flammable gas or alkaline acid substances are present.
Aluminum/copper coils and/or internal plastic components can be damaged irreparably.
Do not install in workshops or kitchens; oil vapours drawn in by treated air might deposit on the coils and alter their
performance or damage the internal plastic parts of the unit.
Installation of the unit will be facilitated by using a stacker and inserting a plywood sheet between the unit and the elevated
stacker.(Fig.2)
It is recommended to position the unit as centrally as possible in the room to ensure optimum air distribution. (Fig.3)
Generally the best louver position is the one which allows air diffusion along the ceiling.
Alternatively intermediate positions can be selected, or the louvers can be closed completely.
Check that it is possible to remove panels from ceiling in the selected position, to allow enough clearance for maintenance and
servicing operations.
Fig.3
Install the indoor unit in a position:
•
Having sufficient strength to carry the weight of the indoor unit.
•
Where the inlet and outlet grilles are not obstructed and the conditioned air is able to blow all over the room.
•
From where condensate can be easily run to drain.
•
Check the distance between the upper slab and false ceiling to ensure the unit will suit the distance. See Fig.4.
B
A
Fig.4
Model
CH2O 20G, 30G
CH2O 40G, 50G, 40GB1
CH2O 100H, 120H, 80 HB1
CH2O 60H, 70H, 60HB1
A (mm.)
B (mm.)
255
10 or more
290
10 or more
260
10 or more
Page.6
COLLEGAMENTO DELLE
CONDUTTURE
PIPE CONNECTION
COLLEGAMENTO
DELLE CONDUTTURE
PIPE CONNECTION
500 mm
500 mm
500 mm
500 mm
500 mm
COLLEGAMENTI ELETTRICI
ELECTRICAL CONNECTIONS
500 mm
Fig.5
•
Page.7
Ensure there is sufficient space around the unit to service it. See Fig.5
2.5.
INSTALLATION METHOD
Cassette Indoor Unit
•
Using the installation template opening ceiling panels and install the suspension bolts as in Figure 6,7,8 below
Fig.6
MODEL
CH2O 20G – 30G – 40G – 50G –40GB1
Dimensions for opening
600 x 600
Suspension Bolts
632 x 280
Page.8
TOP VIEW
Fig.7
MODEL
CH2O 60H – 70H– 60HB1
Dimensions for opening
750×750
Suspension Bolts
345×762
Flangia aria di rinnovo
(opzionale)
TOP VIEW
Fig.8
Page.9
MODEL
CH2O 100H – 120H – 80HB1
Dimensions for opening
850× 850
Suspension Bolts
485× 863
Opening Dimensions and Positions for Suspension Bolts
•
•
•
•
Mark position of suspension rods, water lines and condensate drain pipe, power supply cables and remote control cable.
Supporting rods can be fixed, depending on the type of ceiling, as shown in Fig. 9 and Fig.10.
Fit suspension brackets supplied with the unit to the threaded rods (Fig.11).
Do not tighten nuts and counter nuts; this operation has to be done only after final leveling of the unit, when all the connections
have been completed.
STRUTTURA IN LEGNO
WOODEN STRUCTURE
CALCESTRUZZO
CONCRETE
Concrete
BETON
BETON
Wooden structure.
FISSAGGIO
Fixing rodsDELLE
M 10 BARRE M8
DADO
RONDELLA
NUT
WASHER
Nut
Washer
FIXING RODS M 8
Fig. 10
R
WASHER
Fig. 9
Fixing
on cement
FISSAGGIO SU
UN SOFFITTO
DI ceiling.
CEMENTO
FIXING ON CEMENT CEILING
Washer
DADO
Nut
NUT
Fixing
on wooden
beam.
FISSAGGIO
SU UNA
TRAVE IN
LEGNO
FIXING ON WOODEN BEAM
DADO
MUTTER
DADO
MUTTER
RONDELLA
UNTERLEGSCHEIBE
ASTA
STANGE
CONTRODADO
Fig. 11
KONTERMUTTER
•
•
•
•
•
•
•
•
Ensure the ceiling is horizontally level, otherwise condensate water cannot drain.
The casing is fixed to the slab with 4 drop rods. The rods should have two nuts and washers to lock the unit in position. The
Cassette brackets will then hook over the washers.
When lifting the Cassette into position care should be taken not to lift the unit by the drip tray, which could be damaged.
Lift unit (without the air panel) with care by its four corners only. Do not lift unit by the condensate drain discharge pipe or by
the piping connections.
Incline unit (Fig.12, Fig.13) and insert it into the false ceiling. Insert the rods into the bracket slot. With minimum height (see
table) false ceilings, it might be necessary to remove some T brackets of the false ceiling temporarily.
Using level guide, line up the unit with a spirit level, and keep dimension between the fiber glass body and the lower part of the
false ceiling (Fig.14).
Line up the unit to the supporting bars of the false ceiling tightening the nuts and counter nuts of the threaded rods.
After connection of the condensate drain piping and piping connections, check again that the unit is level
Page.10
Barra
Staffe
Fig. 12
Fig. 13
A
Controsoffitto
Fig. 14
Page.11
•
•
•
•
2.6.
MODEL
CH2O 20G– 30G– 40G– 50G– 60H– 70H– 100H– 120H– 40GB1–
60HB1– 80HB1
A (mm.)
3
Clearance between the unit and False Ceiling for models with single fan and twin fan.
The spaces between the unit and ceiling can now be adjusted. Use the drop rods to make the adjustment.
Check to ensure the unit is level. The drain will then automatically be lower than the rest of the drip tray.
Tighten the nuts on the suspended rods.
DRAIN PIPEWORK
Indoor Unit
•
•
•
•
2.7.
•
•
The unit has to be fitted with a condensate pump with a
500 mm. lift.
The unit has to be provided with 22 mm. bore flexible
hose 300 mm. long.
The flexible hose should be fitted into a 22 mm.
polyvinyl tube and sealed. The drain must be installed
with a downward slope.
On completion the drain line should be insulated
IN
PENDENZA
DOWN SLOPE
Fig. 15
WATER CONNECTIONS
Water connections are fixed to the unit body to avoid breaks when pipes are connected to valve assemblies; it is advisable to tighten
the connection with a spanner.
Coil is partially drainable; it is advisable to blow air into the coil for complete drainage.
Page.12
2.8.
PIPE CONNECTION DIMENSIONAL DRAWINGS
CH2O 20G – 30G
1
WATER OUT φ 3/4"
2
WATER IN φ 3/4"
3
Drainage φ 3/4"
CH2O 40G – 50G
1
WATER OUT φ 3/4"
2
WATER IN φ 3/4"
3
Drainage φ 3/4"
CH2O 60H – 70H
Page.13
1
WATER OUT φ 3/4"
2
WATER IN φ 3/4"
3
Drainage φ 3/4"
CH2O 100H – 120H
1
WATER OUT φ 3/4"
2
WATER IN φ 3/4"
3
Drainage φ 3/4"
CH2O 40GB1
1
WATER OUT φ 3/4"
2
WATER IN φ 3/4"
3
Drainage φ 3/4"
CH2O 60HB1
1
WATER OUT φ 3/4"
2
WATER IN φ 3/4"
3
Drainage φ 3/4"
CH2O 80HB1
143
158
80
1
0
5
50
5
9
1
WATER OUT φ 3/4"
2
WATER IN φ 3/4"
1
5
1
3
Drainage φ 3/4"
204
Page.14
2.9.
EXTENDED DRAIN PAN ACCESSORY
Fig. 16
Fig. 17
2.10
INSTALLATION PROCEDURES
1.
2.
3.
4.
2.11
Align the two (2) screw holes in the fixing plate to the two (2) holes in the external drain pan. (Figure 16)
Make sure the drain pan is horizontal.
Tighten the two screws and making sure the external drain pan is installed flush with the fixing plate. (Figure 17)
When the installation is completed, it is necessary to wrap connecting pipe with thermal insulation to prevent condensation on
ceiling tiles.
INTERCONNECTING WIRING
1.
2.
3.
4.
5.
6.
Page.15
We recommend that screened cable be used in electrically noisy areas.
Always separate low voltage (5VDC) signal wires from power line (230 VAC).
Do not install the unit where electromagnetic waves are directly radiated at the infra red receiver on the unit.
Install the unit and components as far away as is practical (at least 5 meters) from the electromagnetic wave source.
Where electromagnetic waves exist use shielded sensor cable.
Install a noise filter if any harmful noise exists in the power supply.
Fig. 18
Important note
Please ensure the cable from the mains power supplyto the control box terminal box is longer than 500mm from the control box terminal
block. This is to ensure the control box can be slid out easily during maintenance activities.
Always take safety precaution before wiring for mains supply. See section 2.1 SAFETY CONSIDERATION on page 4.
Wiring procedures:
1.
2.
3.
4.
5.
6.
7.
Open the terminal block cover by removing 4 screws
Connect power cable to the terminal according to wiring diagram.
Connect room temperature sensor, coil temperature sensors to the control box
Connect stepping motor
Connect receiver display
Connect wall pad (optional)
Slide in the control box to the unit casing and fixed with 2 screws.
Page.16
2.12
MOUNTING FRONT PANEL AND FILTER REMOVAL
Mounting front panel
1.
2.
3.
Remove return grille from front panel.
Move the front panel to casing.
Tighten 4 screws as shown in Fig. 19 and Fig. 20.
Fig. 19
Fig. 20
Filter removal
1.
2.
3.
4.
Unlock the two fasteners on the front panel.
Open the grille downward with care.
Pull the filter out along the slot.
Clean the filter and reassemble.
Fig. 21
Page.17
2.13.
•
•
•
•
•
•
•
•
•
•
•
The unit should not be started up until the system piping has been cleaned and all the air has been purged.
Check condensate drain pipe slope.
After you have connected the main power supply to the cassette unit, it is necessary to check the good function of the condensate
water pump which is installed inside.
Due to transport vibration, it might be possible that the float switch is stuck in an OFF position, and therefore the pump might not
work in the correct way. For this reason, you have to do the following, to ensure good functioning of the unit.
Install the cassette unit in an absolute horizontal position.
Fill the internal drain pan (manually) with enough water to ensure the drain pump is working.
You can fill the drain pan by pouring water through the external drain pan.
If everything is correct, the water will be pushed out into the pipe work you have installed. If the pump does not function, you have
to make sure the float switch is in the correct position and can move freely.
Make sure that the air filter is clean and properly installed.
Ensure that voltage and current values correspond with the unit nameplate values; check electrical connections.
Verify that air outlets are not closed.
2.14.
•
•
•
PRELIMINARY CHECKS BEFORE START-UP
MAINTENANCE
Before performing any service or maintenance operations, turn off the main power switch. Please see section 2.1 SAFETY
CONSIDERATION on page 4.
The air filter is made of acrylic fiber and is washable in water. To remove filter simply open the intake grille by releasing the two
catches. See Fig. 21 on page 17 for the section filter removal.
Check the filter periodically and before the operating season; clean or replace as necessary.
PROLONGED UNIT SHUTDOWN
Prior to restarting the unit:
•
Clean or replace the air filters.
•
Check and remove any obstruction from the external drain pan and the internal drain pan.
EXTRA MAINTENANCE
•
The electrical panel is easily accessible by removing the cover panel.
•
The inspection or replacement of internal components such as; heat exchanger coil, condensate Drain pump, float switch,
involves the removal of the condensate drain pan. See Figure 16 and Figure 17 on page 14.
•
During the removal of the condensate drain pan protect the floor under the unit with a plastic sheet from condensate water that
could be spilled.
•
Remove fixing screws of the drain pan fixture and remove condensate drain pan with care.
•
The appliance is intended to be maintained by qualified service personnel and located at a height of not less than 2.5m.
•
Please see section 2.1 SAFETY CONSIDERATION on page 4
Page.18
2.15.
AIR VENT AND WATER PURGE
Fig. 22
Step 1 : Remove grill, access the area indicated by the
red square.
2.16.
Step 2 : Release the air vent / water purge by turning the
knobs. Remember to close the air vent / water purge after the
venting / purging process is complete.
REPLACING MOTOR AND FAN BLOWER
Fig. 24
Step 1 : Remove fan blower by using a spanner.
Page.19
Fig. 23
Fig. 25
Step 2 : Remove the motor by removing 4 bolts and
disconnecting the fan motor wire connector
2.17.
REPLACING CONDENSATE PUMP AND INTERNAL VALVE
Fig. 26
Step 1 : Remove front panel and disconnect stepping
motor and IR receiver.
Fig. 28
Step 3 : Remove the drain pan fixture and internal drain
pan.
Fig. 27
Step 2 : Remove the drain pan fixture by removing the 8
screws as shown.
Fig. 29
Step 4 : Remove the drain pump or valve.
Page.20
2.18.
REPLACING CONTROL BOX
Fig. 30
Step 1 : Remove 2 screws from control box.
Fig. 32
Step 3 : Remove the terminal cover by removing 4 screws
and unplug the wiring on the terminal. And replace with a
new control box.
Page.21
Fig. 31
Step 2 : Sliding out the control box.
2.19.
INSTALL ELECTRIC HEATER
Please note the electric heater may only be used with motor speeds 5,4,3.
Fig. 33
Fig. 34
Step 1 : Snap in the insulated ring of the electric heater to the electric heater mounting shown above.
Step 3: Please configure PCB unit for electric heat
function.
Note: The electric heater can be configured as booster
and as primary source. ( Refer to page 33 for DIP
setting.)
Fig. 35
Step 2: Plug-in the electric heater connecting wire to the
connector located on the interior coil support as
indicated in the picture.
2.20.
FRESH AIR RENEWAL CONNECTION
The fresh air system for cassette unit allows up to 15% of unit airflow as fresh air intake (per connection). Maximum 2 fresh air
connections per unit are allowed.
•
•
•
•
The corners of the cassette allow separate ductwork to be installed for outside air intake ( Fig. 36 ).
Cut and remove thermal insulating material.
Open the mounting plate ( Fig. 37 and Fig. 38 )
Install the flanges to casing and fix it with 2 screws. Flange is rectangular duct with dimension 110 x 55mm.
Page.22
Flangia aria di rinnovo (opzionale)
Fig. 36
Page.23
Fig. 37
Fig. 38
Fig. 39
Fig. 40
Fig. 41 – Fresh Air Duct dimension And Drawing
2.21.
•
•
•
BRANCH DUCT AND FRESH AIR DUCT INSTALLATION
The side opening allows separate ductwork to be installed for branch ducting. ( Fig. 42 and Fig. 43 ).
Cut and remove anti-condensate insulating material.
Install your flanges and conduits to casing. Conduit can be flexible polyester with spring core or corrugated aluminium
externally coated (dia.4 in.) with anti-condensate material (fiberglass 12-25 mm thickness).
Order flanges (spigots) and blanking plates as accessories separately.
Page.24
Fig. 42 – Branch Duct Dimension
Flangia aria di rinnovo
(opzionale)
Fig. 43
Page.25
Branch Duct Installation Procedure
1.
2.
3.
4.
Look for the yellow sticker on the casing for location of branch duct or fresh air intake connections.
The sticker is at the center of a knock out hole underneath the casing insulation. Use a cutter and follow along
the pre-cut circular marking as shown and trim off the insulation.
Knock out the pre-cut hole.
Connect the flange on to the opening with Φ3 mm. x 12 mm. tapping screws.
STICKER
Step 1
Step 2
Step 3
Step 4
Tapping Screw
Dia 3 mm.x12 mm.l.
Fig. 44
Page.26
2.22.
BLANKING PLATES
Uscita aria
PIASTRE DI CHIUSURA
PIASTRE DI CHIUSURA
PIASTRE DI CHIUSURA
Unità
Aria in ingresso
How to install
1)
2)
3)
4)
Page.27
Remove the front panel.
Peel off the cover paper to expose adhesive surface of the blanking plate.
Apply blanking plate on the air outlet to cover the opening.
Press on the attaching area to firmly seal it.
3.
CONFIGURATION SETTING OF THE UNIT CONTROL
3.1
REAL TIME CLOCK CONTROL HANDSET
Page.28
1
Transmission source used for sending control signal to air-conditioning unit
2
ON-OFF button: Pressing this button will turn the air-conditioning unit on or off. NOTE: on-off button ON- OFF will
not work when timer program is set.
3
Fan button: press to select Low, Medium; High or Auto speed
4
Mode button: Press button to select Auto mode, Cool, Dehumidify, Fan or Heat mode
5
Swing button: air conditioning in all mode
6
LCD display
7
Sleep button: sleep mode will automatically adjust temperature and save energy when you are sleeping
8
9
10
Up button: press button to increase temperature 1C step.(Max30C).
Down button: press to decrease temperature 1C step.(min:16C)
Pressing timer “On”: press the “On” button once, the last ON timer setting will be displayed. Pressing the button
susbequently will change the timer setting in 1 minute intervals. Hold button to increase speed.
Pressing timer “Off”: press the “Off” button once, the last OFF timer setting will be displayed. Pressing the button
susbequently will change the timer setting in 1 minute intervals. Hold button to increase speed.
11
Pressing timer “Cancel”: press the “Cancel” button to cancel all timer settings
12
Hold either “Up” or “Down” button for 2 seconds to activate real time clock adjustment mode.
“Up” button: press button to change time in 1 minute intervals. Hold button to increase speed.
“Down” button: press button to change time in 1 minute intervals. Hold button to increase speed
Page.29
3.2.
REAL TIME CLOCK WIRED WALL PAD CONTROL
Page.30
1
2
ON/OFF Button: Press the button to turn the unit on or off.
Fan Button: Press the button to select Auto,Low, Medium or High speed.
3
Mode Button: Press the button to select Auto, Cool, Dehumidification, Ventilation or Heat mode.
4
Temperature Up and Down Button: Press Up Button to increase temperature 1< step. (Max: 30< ). Press Down
Button to decrease temperature 1 C step. (min: 16C)
5
Sleep Button Sleep mode will automatically adjust temperature and save energy when you are sleeping.
6
Swing Button: Press swing to activate Swing function
7
“Time +” and “Time -”:
Press “Time +” and “Time –“ to adjust real time clock setting.
During timer setting process, press “Time +” and “Time –” to adjust timer program set time.
When controlling a MASTER UNIT in network control mode only, hold “Time +” and “Time –” together for 3 seconds to
synchronize all slave unit real time clock settings according to master unit real time clock.
8
Day – press “Day” button to adjust real-time clock day setting
9
10
11
12
“Timer” and “Cancel” button
1. When controlling a LOCAL UNIT:
a. Press “Timer” button to access timer ON function progamming mode. “Timer + ON” icon (see 21) blinking indicates
timer ON function programming mode active. Any existing timer setting will be displayed in the timer display area and day
display area.
b. Press “Day” button to select desired day.
c. Press “Time +” or “Time –“ button repeatedly (hold down for fast cycling), to select desired time.
d. Repeat step b. and c. until all desired days are programmed (1 setting per day for Mon/Tue/Wed/Thur/ Fri/Sat/Sun).
e. Press “Timer” button to access time OFF function programming mode. “Timer + OFF” icon (see 21) blinking indicates
timer OFF function programming mode active. Any existing timer setting will be displayed in the timer display area and day
display area.
f. Press “Day” button to select desired day.
g. Press “Time +” or “Time –“ button repeatedly (hold down for fast cycling), to select desired time.
h. Repeat step b. and c. until all desired days are programmed (1 setting per day for Mon/Tue/Wed/Thur/ Fri/Sat/Sun).
i. Press “Timer” button to exit timer function progamming mode.
j. Hold “Cancel” for 3 seconds to cancel all timer settings.
2. When controlling a MASTER UNIT in network control mode only
a. Enter network control mode as per instruction in 10)a. and 10)b. below.
b. When desired slave unit is selected, press “Timer” button to access timer programming mode, and follows steps 1a. to
1i. above to set slave unit timer program.
c. Repeat steps a. and b. to set slave unit timer program for different days.
3. When controlling a master unit in GLOBAL control mode only:
a. Hold “Cancel” for 3 seconds to delete all slave unit’s local timer settings, and broadcast master unit’s timer settings to all
slave units .
MASTER UNIT ONLY:
For addressable master-slave control (i.e. each slave unit has a unique network address):
a. Press”Net” button to enter networking mode.
b. Press “Time +” or “Time -”to select unit to control
c. Set slave parameters including on/off, mode, fan speed, swing, sleep, 7-day programmable timer function
, d. Press “Net” button to exit networking mode
For non-addressable master-slave control (i.e. each slave unit has the same network address):
a. Press “Net” button to enter networking mode.
b. Set slave group parameters
c. Press “Net” button to exit networking mode
MASTER UNIT ONLY:
For master-slave global control (for addressable and non-addressable slave unit configurations):
a. Hold “Swing” and “Fresh” together for 4 seconds to enter global control mode.
b. Icon “
” will be lit when global control mode is active
c. All parameter settings will be automatically sent to all slaves
d. Hold “Swing” and “Fresh” together for 4 seconds to exit global control mode
Hold “Fan” and “Cancel” buttons together for 5 seconds to display unit parameters. Press “Parameter +” or “Parameter -” to
select parameter to display. C0 = return air temperature (C), C1 = indoor coil temperature (C), C2 = dipswitch setting.
For MASTER UNIT only, in network control mode slave unit parameters can be displayed.
Page.31
13
14
15
16
Key lock: hold temperature up and down buttons (see 4) for 3 seconds to activate keylock mode. When keylock mode is
icon is lit in display area and system access by wall pad control is prevented, except for unit on/off button
activated
(see 1). Repeat hold of temperature up and down buttons for 3 second to disactivate keylock mode.
Real time clock display area.
During timer function setting, indicates set time
Day display area
During timer function setting, indicates set day
Room Temperature (C) Display
During set temperature setting, indictes set temperature
17
Cool, Dehumidification, Ventilation or Heat
18
Fan Speed Display: Auto, Low, Medium or High
19
Sleep Display
20
Swing Display
21
22
Timer icon:
a. Icon + “ON” indicates existing timer ON program for current day
b. Icon + “OFF” indicates existing timer OFF program for current day
“Unit” icon plus number indicates unit address. No.00 is the master unit. You can control all or each of the units by the
master unit. No.01-31 are slave units.
During network control mode (MASTER UNIT ONLY), “Unit” icon plus number indicates slave unit address.
Icon + number displayed: indicates local unit error. E1= Electric Heater faulty E2= indoor coil sensor 2 faulty E3 = return air
sensor faulty. E4 = indoor coil sensor faulty. E5 = indoor coil low temperature protection. E6 = indoor coil overheat
protection. E7= Water pump faulty E8 =local communication error
Note for MASTER UNIT only:
23 Error indication
When faulty slave unit is detected, Master unit display area shows the faulty unit address, time area shows the error code and
wall pad backlight changes to red color. Should there be multiple units having problems, addresses and error codes will be
shown one after another.
For system without master-slave settings, wall pad will indicate unit error codes as above.
24
3.3.
Infrared receiver (receives infrared signal from handset)
HARDWARE CONFIGURATION
DIP SWITCH SETTING
Applying setting on DIP Switches defines behavior of the Control Box.
There are 2 DIP Switch sets on the PCB,
DIP-Switch A : 8 Dip-switches
•
•
DIP-Switch B : 6 Dip-switches
In general, DIP Switch setting: 1 for ON, 0 for OFF.
MOTORIZED VALVE CONFIGURATION
•
DIP switch B, SW4 is used for this configuration
SW4
Closed
Open
Motorized valve
With valve
Without valve
Page.32
Model Configuration
•
Other switches in DIP switch A and B are used for below configuration
DIP Switch B (DIP Interruttore B)
DIP Switch B is used for model configuration:
Switch
SW1
State
-0
1
Description
PR-O contact setting
Economy contact
Window contact (Default setting)
SW2
-0
1
System setting
2 pipes system (Default setting)
4 pipes system
--
Preheat setting
Temperatura pre riscaldamento
28C
36C (Default setting)
Switch
SW4
State
--
1
Description
MTV setting [applicable to 2 pipes
system only]
Without motorized valve (Default
setting)
With motorized valve
SW5
-0
Reserved
(Default setting)
SW6
-0
1
RS485 termination setting
Other than below (Default setting)
Last unit on RS485 communication
bus
Ultima unità sul bus di
comunicazione RS485
0
SW3
0
1
DIP Switch A
SW1-SW6 is used for master slave address assignment. Please refer to section MASTER – SLAVE INSTALLATION on page 38.
For SW7 and SW8,
Page.33
SW7
SW8
0
0
1
1
0
1
0
1
Impostazione modello
Model setting
Cool-Heat (Default setting)
Cool-Heat + booster heater
Cooling only
Cool + primary heater
3.4.
COMPUTER MANAGEMENT SYSTEM CONTROL – CONTROL BOX I
ABBREVIATIONS
Ts = Setting temperature
Tr = Room temperature
Ti1= Chilled water coil temperature, ID1
Ti2= Hot water coil temperature, ID2
AUX1 = Hot water voltage-free-contact
AUX2 = Cold water voltage-free-contact
MTV1 = Cool Motorized valve
MTV2 = Heat Motorized valve
Definition of Input and Output ports
I/O
Analogue
Input
Input
Code
Application in 2-Pipe system
Application in 4-Pipe system
Room Sensor
CN8
Return air
Return air
Chilled water Sensor
CN7
Indoor coil
Chilled water coil
Hot water Sensor
CN6
Reserved
Hot water coil
IR receiver
CN9
Used
Used
Wired wall pad
CN5
Used
Used
Occupancy contact
PR-O
DIP-SWITCH IS ON. (Window contact)
The contact is normally open. If the contact has been closed for
10 minutes, the unit will go to stand-by mode (all output
signals will be disabled). When the contact is open again, the
unit will resume running normally.
DIP-SWITCH IS OFF. (Economy contact)
Cooling operation will only be activated when Tr - Ts >= 4 ºC.
If Tr < Ts, cool operation will be terminated.
Heating operation will only be activated when Tr – Ts <= -4
ºC. If Tr > Ts, heating operation will be terminated.
Float switch
Float
Voltage-free (NC)
Electric Heater safety
switch
EH
Phase
L
Neutral
N
Earth
GND
High fan speed
HF
Max length: 5 m. Voltage output (L)
Medium fan speed
MF
Max length: 5 m. Voltage output (L)
Low fan speed
LF
Max length: 5 m. Voltage output (L)
Valve1
MTV1
Water valve
Voltage output (L)
Valve2
MTV2
Reserved
Water pump
WP
Voltage output (L)
Voltage of Electric
Heater (Live)
L-EH
Voltage output (L), maximum 30A
Stepping motor
CN1-4
Digital input
Power input
Voltage
output
Output
Voltage-free (NC). The contact is closed before the EH is
turned on.
Power supply to the PCB and all the loads connected to the
voltage outputs. Max length: 5 m.
Power supply to the PCB and all the loads connected to the
voltage outputs. Max length: 5 m.
Power supply to the PCB and all the loads connected to the
voltage outputs. Max length: 5 m.
Chilled water valve
Voltage output (L)
Hot water valve
Voltage output (L)
Page.34
I/O
Page.35
Code
Cold water free contact.
AUX2
Hot water free contact.
AUX1
In Modbus signal
CN10
Application in 2-Pipe system
Application in 4-Pipe system
Voltage free contact. To ensure the sensitivity of the
connection, please make sure Max wiring length < 30 m.
Voltage free contact. To ensure the sensitivity of the
connection, please make sure Max wiring length < 30 m.
Terminals for local network serial connection
Wiring Diagram
Control Box – I , Integrated Full Control Version I/O and Power supply wiring diagram
Page.36
Master-Slave Control Wiring Diagram with Control Box - I
Unità Master
Master Unit
Page.37
Unità Slave
Slave Unit
SYSTEM OPERATION
MASTER AND SLAVE UNIT FUNCTION
•
The control board can be set either as a master unit or slave unit
MASTER UNIT FUNCTION
•
•
•
The master unit sends data on its setting to the slave unit.
The master unit settings are Unit ON/OFF, Mode, Fan Speed, Set Temperature, Swing Function, and Sleep Function for
handset operation.
The master unit settings are Unit ON/OFF, Mode, Fan Speed, Set Temperature, Swing Function, Sleep Function and Weekly
Timer ON/OFF program for wall pad operation.
SLAVE UNIT FUNCTION
•
•
•
The slave unit receives data on its settings from the master unit.
The slave unit is allowed to change to a locally desired setting as long as there are no subsequent changes on the settings of
the master unit.
The slave units can be set individually for Mode, Fan Speed, Set Temperature, 7-day progammable timer (by wall-pad
operation), Sleep Function and Swing function. The slave units can be set individually for timer on and off function by
handset or wall pad. The handset cannot override wall pad timer and clock setting.
MASTER – SLAVE INSTALLATION
•
Master unit: close SW6 [DIP switch A] on PCB before power on. Each master unit can command up to 31 slave units.
•
Slave unit: For addressable master-slave control (master unit can control and/or monitor individual slave units), set dip
switches on slave units as per the following table (note: each slave unit must have a unique address):
SW: switch position
1 = ON
0 = OFF
SW6
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SW5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
SW4
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
SW3
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
SW2
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
SW1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Unit No.
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
Remark
Master
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Page.38
SW6
0
0
0
0
0
0
0
0
0
0
0
0
SW5
1
1
1
1
1
1
1
1
1
1
1
1
SW4
0
0
0
0
1
1
1
1
1
1
1
1
SW3
1
1
1
1
0
0
0
0
1
1
1
1
SW2
0
0
1
1
0
0
1
1
0
0
1
1
SW1
0
1
0
1
0
1
0
1
0
1
0
1
Unit No.
21
22
23
24
25
26
27
28
29
30
31
32
Remark
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
•
Connect master unit PCB to slave unit PCBs in a serial network using RJ-11-6P-4C telephone cable (i.e. 4-core
cable and one-to-one configuration). Maximum distance for network length is 1 km. Please refer to wiring
diagram on page 37.
•
For IR handset control:
1.
2.
only non-addressable, global control communication is available (master unit settings are automatically
communicated to all slaves).
Master unit will beep twice confirming receipt of commands from handset. Slave units will beep once.
•
For wallpad control:
1.
Addressable communication (each unit can be individually monitored and controlled)
i.
ii.
•
set master and slave SW1 – SW6 in switch A as per above table, and record installed unit
addresses
review wall-pad usage instructionsin section 10 for details of how to monitor and set individual
unit parameters
When MAIN POWER SUPPLY is ON:
With motorized valve:
The master unit will respond with 3 beeps.
The slave unit will respond with 1 beep.
Without motorized valve:
The master unit will respond with 4 beeps.
The slave unit will respond with 2 beeps.
•
\
Master will beep twice to the LCD wireless handset or LCD wallpad confirming receipt of commands.
•
Slave unit will beep once to the LCD wireless handset or LCD wall pad confirming receipt of commands.
There are two modes for Master-slave control communication.
1)
Global Control communication
Master unit broadcasts settings to all slave units automatically while global control mode is activated (see wall pad ..
During normal operation, slave units can receive commands from its wireless handset and wall pad control panel. Upon
reception of master global commands, all slave unit settings will be replaced by the master settings
See wall pad usage guide 11) for wall pad usage instructions.
Handset control of master unit is equivalent to global control mode – all master unit settings are automatically
transmitted to all slave units.
Page.39
2)
Addressable communication
Each slave unit in the network has a unique network address. Master unit broadcasts settings to individual units, selected
by accessing network control mode through the LCD wall pad.. During normal operation, slave units can receive
commands from its wireless handset and wall pad control panel. Upon receiving the control commands from a master
unit, the addressed slave unit settings will be replaced by the master settings.
See wallpad usage guid e point 10) for usage instrctions.
•
Unit PCB can receive data from both wireless LCD handset and wired LCD wall pad. When wired LCD wall pad
is connected to the PCB, unit LED receiver will stop receiving signal from wireless LCD handset, and LCD
handset signal is detected by wired LCD wall pad receiver. When wall pad is disconnected from the PCB for 5
seconds, it will revert to wireless LCD handset reception automatically.
COMPUTER MANAGEMENT SYSTEM
•
A number of units can be grouped together via data logger [router] to form a bigger network [1 up to 64 data
loggers]. The maximum network size is 64 data loggers x 32 fan coils = 2048 fan coils connected to a computer
based control system. Use a data communication cable to connect the data logger RS485 port to the computer
RS485 port, or use COM to RS485 converter if your computer doesnot have an RS485 port.
Please see your dealer for detailed advice on connecting the unit PCB to to your CMS system.
•
The communication protocol from serial network datalogger to computer is MODBUS. Host computer can
monitor and control every single unit; on/off, mode, set temperature, swing, sleep, fan speed, and timer
ON/OFF weekly program.
•
The master unit can be connected with 31 slave units with maximum distance of 1 KM.
AIR CONDITIONER ON/OFF
There are 3 ways to turn on or off the system:
•
•
•
by ON/OFF button on the air conditioner.
by hours programmable timer on the handset or wallpad controls.
by ON/OFF button on the handset.
POWER ON SETTING
•
For units controlled by remote handset, when power on signal is received by the air conditioner or in case of
auto restart the Mode, Fan Speed, Set Temperature and Swing setting as the last handset setting before the last
power off.
•
For units controlled by wired LCD wall pad, when power on signal is received by the air conditioner or in case
of auto restart the Mode, Fan Speed, Set Temperature and Swing and 7-day timer program setting as the last
wired LCD wall pad setting before the last power off.
Page.40
WITH MOTORIZED VALVE (FOR 2-PIPES SYSTEM)
COOL MODE
•
MTV2, AUX1 and Electric Heater always off.
•
If Tr≥Ts+1°C (or +4 ºC if economy contact is activated), cool operation is activated. MTV1 is turned on. AUX2
is opened. Indoor fan runs at set speed.
•
•
•
•
•
•
If Tr≤Ts, cool operation is terminated. MTV1 is turned off. AUX2 is closed. Indoor fan runs at set speed.
The range of Ts is 16 to 30 °C.
Indoor fan speed can be adjusted for low, medium, high and auto.
When turned on, MTV requires 30 seconds before it is fully open.
When turned off, MTV requires 120 seconds before it is fully closed.
When the unit is turned off, indoor fan will delay for 5 seconds before it is turned off.
LOW TEMPERATURE FROTECTION OF INDOOR COIL
•
•
If Ti≤2°C for 2 minutes, MTV1 is turned off, AUX2 is closed. If indoor fan is set for low speed, it will run at
medium speed. If it set at medium or high speed, it will keep running at the same speed.
If Ti≥5°C for 2 minutes, MTV1 is turned on, AUX2 is opened. Indoor fan runs at set speed.
FAN MODE
•
•
Indoor fan runs at the set speed while MTV is turned off. AUX1 and AUX2 are opened.
Indoor fan speed can be adjusted for low, medium, high and auto.
HEAT MODE
•
MTV2, AUX2 and heater always off.
•
•
If Tr <= Ts-1 ºC (or -4 ºC if economy contact is activated), heat operation is activated, MTV1 is turned on,
AUX1 is closed. Indoor fan runs at the set speed.
If Tr>= Ts, heat operation is terminated, MTV1 is turned off, AUX1 is open. Indoor fan runs at low speed for 30
seconds, and OFF for 3 minutes.
The range of Ts is 16 to 30 °C
•
•
•
Indoor fan speed can be adjusted for low, medium, high and auto
When turned on, MTV requires 30 seconds before it is fully open
When turned off, MTV requires 120 seconds before it is fully closed
•
Page.41
HEAT MODE ---WITH ELECTRIC HEATER AS BOOSTER
•
MTV2 and AUX2 are always off.
•
If Tr <= Ts 1 ºC (or -4 ºC if economy contact is activated), heat operation is activated, MTV1 and AUX1 are
turned on. Indoor fan runs at the set speed.
•
If Tr >Ts, heat operation is terminated, MTV1 and AUX1 are turned off. Indoor fan repeatedly runs at low fan
speed for 30 seconds and stops for 3 minutes.
•
If Ti1<40 ºC, the Electric Heater is turned on. If 40<= Ti1<45 ºC, the Electric Heater is kept original state. If
Ti1>=45 ºC, the Electric Heater is turned off.
•
The range of Ts is 16~30 ºC
•
Indoor fan speed can be adjusted for low, medium, high and auto.
•
MTV1 will delay for 30 seconds before it is turned on.
•
MTV1 will delay for 120 seconds before it is turned off.
﹣
HEAT MODE ---WITH ELECTRIC HEATER AS PRIMARY SOURCE
•
MTV1, MTV2 and AUX2 are always off.
•
If Tr <= Ts 1 ºC (or -4 ºC if economy contact is activated), heat operation is activated, Electric Heater and
AUX1 are turned on. Indoor fan runs at set speed.
•
If Tr >Ts, heat operation is terminated, Electric Heater and AUX1 are turned off. Indoor fan repeatedly runs at
low fan speed for 30 seconds and stops for 3 minutes and repeats.
•
The range of Ts is 16~30 ºC
•
Indoor fan speed can be adjusted for low, medium, high and auto.
﹣
PRE-HEAT AND PROTECTION OF INDOOR COIL
•
If Ti1<36 ºC [or 28 ºC depends on DIP setting], when MTV1 and AUX1 are on, indoor fan remains off.
•
If Ti1>=38 ºC [or 30ºC depends on DIP setting], when MTV1 and AUX1 are on, indoor fan runs at set speed.
•
If indoor coil temperature sensor is damaged, pre-heat time is set for 2 minutes and indoor fan runs at set speed.
PREHEAT WITHOUT ELECTRIC HEATER
•
If Ti1<36 ºC [or 28 ºC depends on DIP setting], when MTV1 and AUX1 are on, indoor fan remains off.
•
If Ti1>=38 ºC [or 30ºC depends on DIP setting], when MTV1 and AUX1 are on, indoor fan runs at set speed.
•
If indoor coil temperature sensor is damaged, pre-heat time is set for 2 minutes and indoor fan runs at set speed
PREHEAT WITH ELECTRIC HEATER
•
Indoor fan will turn on after the Electric Heater is turned on for 10 seconds
Page.42
POSTHEAT WITHOUT ELECTRIC HEATER
≧38ºC, when MTV1 and AUX 1 are off, indoor fan continues to run at set speed.
•
If Ti1
•
If 36 °C <= Ti1< =38 °C, when MTV1 and AUX1 are off. Indoor fan keeps original state.
•
If Ti1<36ºC, when MTV1 and AUX1 are off. Indoor fan runs 30 seconds and stop 3 minutes repeatedly.
•
If indoor coil temperature coil is damaged, post-heat time is set for 3 minutes with indoor fan running at set
speed.
POSTHEAT WITH ELECTRIC HEATER
•
Indoor fan will turn off after the unit off for 20 seconds.
OVER HEAT PROTECTION OF INDOOR COIL
•
•
•
If Ti≥75°C, MTV1 is turned off, AUX1 is opened, and indoor fan remains on and runs at set speed.
If Ti<70°C, MTV1 is turned on, AUX1 is closed, and indoor fan remains on and runs at set speed.
If indoor coil temperature sensor is damaged, the protection mode will become obsolete and the unit will work
as the Pre-heat and Post-heat set times
DEHUMIDIFICATION MODE
•
MTV2, AUX1 and heater always off.
•
•
•
•
If Tr≥25°C, indoor fan, MTV1 and AUX2 will be ON for 3 minutes and OFF for 4 minutes.
If 16°C≤Tr<25°C, indoor fan, MTV1 and AUX2 will be on for 3 minutes and OFF for 6 minutes.
If Tr<16°C, indoor fan, MTV1 and AUX2 will be turned off for 4 minutes.
At the end of the above dehumidification cycle, system will decide the next dehumidification control option.
Indoor fan will run at low speed throughout the dehumidification process.
AUTOMODE
With Electric Heater As Booster
•
Every time the unit is turned on, MTV1 will be turned on, while AUX1, AUX2 and fan are off. MTV2 and
heater always off. After 120sec, decide the subsequent operation mode as follow:
i.
If the coil temperature sensor (Ti1) ≧36°C, MTV1, AUX1 and fan will be turned on or off according to
HEAT mode.
ii.
If Ti1 < 36°C, MTV1, AUX2 and fan will be turned on or off according to COOL mode.
•
It will then stay at the above AUTO COOL or AUTO HEAT mode throughout the operating cycle until user
change the mode manually or turn off and on the unit.
•
Should there be failure of Ti1 sensor, auto mode is not allowed.
Page.43
With Electric Heater As Primary Heat Source
•
If current running mode is AUTO COOL mode, it will change over to AUTO HEAT mode upon satisfy all the
conditions below:
≧1.0°C(or -4 ºC if economy contact is activated)
MTV1 has stop≧10 min.
i.
Ts-Tr
ii.
•
•
If current running mode is AUTO HEAT mode, it will change over to auto cool mode upon satisfy all the
conditions below:
≧
i.
Tr-Ts 1.0°C(or +4 ºC if economy contact is activated)
ii.
MTV1 has stop
≧10 min.
Note: AUTO COOL or AUTO HEAT operation are the same as COOL or HEAT mode respectively.
WITHOUT MOTORIZED VALVE FOR 2-PIPES SYSTEM
COOL MODE
•
Electric Heater, AUX1, MTV1 and MTV2 always off.
•
If Tr≥Ts+1°C, cool operation is activated. AUX2 is closed. Indoor fan runs at set speed.
•
•
•
•
If Tr<Ts, cool operation is terminated. AUX2 is opened. Indoor fan is turned off.
The range of Ts is 16 to 30 °C.
Indoor fan speed can be adjusted for low, medium, high and auto.
When the unit is turned off, indoor fan will delay for 5 seconds before it is turned off.
HEAT MODE
•
MTV1, MTV2, AUX2 and heater always off.
•
If Tr≤Ts-1°C (or -4 ºC if economy contact is activated), heat operation is activated. AUX1 is closed. The indoor
fan is turned on and runs at the set speed.
If Tr>Ts, heat operation is terminated. AUX1 is opened. Indoor fan repeatedly runs at low fan speed for 30
seconds and stops for 3 minutes.
The range of Ts is 16 to 30°C.
Indoor fan speed can be adjusted for low, medium, high and auto.
•
•
•
FAN MODE
•
Indoor fan runs at the set speed while heater, AUX1, AUX2, MTV1 and MTV2 are turned off.
•
Indoor fan speed can be adjusted for low, medium and high.
•
Low Temperature Protection Of Indoor Coil
•
If Ti1
2 ºC for 2 minutes, AUX2 is off. If indoor fan runs at low speed, it will run at medium speed. If indoor
fan runs at medium or high speed, it will run at set speed.
•
If Ti1
≦
≧ 5 ºC for 2 minutes, AUX2 is on. Indoor fan runs at set speed.
Page.44
HEAT MODE---WITH ELECTRIC HEATER AS BOOSTER
•
MTV1, MTV2 and AUX2 are always off.
•
If Tr <= Ts 1 ºC (or -4 ºC if economy contact is activated), heat operation is activated, AUX1 is turned on.
Indoor fan runs at the set speed.
•
If Tr >Ts, heat operation is terminated, AUX1 is turned off. Indoor fan repeatedly runs at low fan speed for 30
seconds and stops for 3 minutes.
•
If Ti1<40 ºC, the Electric Heater is turned on. If 40<= Ti1<45 ºC, the Electric Heater is kept original state. If
Ti1>=45 ºC, the Electric Heater is turned off.
•
The range of Ts is 16~30 ºC.
•
Indoor fan speed can be adjusted for low, medium, high and auto.
﹣
PRE-HEAT---WITHOUT ELECTRIC HEATER
•
MTV1, MTV2 and AUX2 are off.
•
If Ti1<36 ºC [or 28 ºC depends on DIP setting], AUX1 is on while indoor fan remains off.
•
If Ti1>=38 ºC [or 30 ºC depends on DIP setting], AUX1 is on while indoor fan runs at set speed.
•
If indoor coil temperature sensor is damaged, pre-heat time is set for 2 minutes and indoor fan runs at set speed.
PRE-HEAT---WITH ELECTRIC HEATER
•
Indoor fan will turn on after the Electric Heater is turned on for 10 seconds.
POST-HEAT --- WITHOUT ELECTRIC HEATER
•
Not available.
POST-HEAT--- WITH AND WITHOUT ELECTRIC HEATER
•
AUX1 is off. Electric Heater is turned off.
•
Indoor fan will be turned off after the unit is turned off 20sec AUX1 is off.
OVER HEAT PROTECTION OF INDOOR COILl
•
If Ti1 >= 75 ºC, AUX1 is turned off, indoor fan remains on and runs at high speed.
•
If Ti1<70 ºC, AUX1 is turned on, indoor fan remains and runs at set speed.
•
If indoor coil temperature sensor is damaged, the protection mode will become obsolete and the unit will work
as the Pre-heat and Post-heat set times.
Page.45
DEHUMIDIFICATION MODE
•
MTV1, MTV2, AUX1 and heater always off.
•
If Tr >= 25 ºC, indoor fan and AUX2 will be ON for 3 minutes, and OFF for 4 minutes.
•
If 16 ºC < =Tr < 25 ºC, indoor fan and AUX2 will be ON for 3 minutes, and OFF for 6 minutes.
•
If Tr <16 ºC, indoor fan and AUX2 will be turned off for 4 minutes.
•
At the end of the above dehumidification cycle, system will decide the next dehumidification control option.
Indoor fan will run at low speed throughout the dehumidification process.
AUTOMODE
•
Not available.
WITH MOTORIZED VALVE (FOR 4-PIPES SYSTEM)
COOL MODE
•
•
•
•
•
•
•
•
MTV2, AUX1 and heater always off.
If Tr >= Ts+1ºC (or +4 ºC if economy contact is activated), cool operation is activated, MTV1 and AUX2 are
turned on. Indoor fan runs at set speed.
If Tr < Ts, cool operation is terminated, MTV1 and AUX2 are turned off. Indoor fan runs at set speed.
The range of Ts is 16-30 ºC
Indoor fan speed can be adjusted for low, medium, high and auto.
When turned on, MTV1 requires 30 seconds before it is fully open.
When turned off, MTV1 requires 120 seconds before it is fully closed.
When the unit is turned off, indoor fan will delay for 5 seconds before it is turned off.
LOW TEMPERATURE PROTECTION OF INDOOR COIL
•
•
≦
≧
If Ti1
2 ºC for 2 minutes, MTV1 and AUX2 are turned off. If indoor fan is set for low speed, it will run at
medium speed. If it is set at medium or high speed, it will keep running at the same speed.
If Ti1
5ºC for 2 minutes, MTV1 and AUX2 are turned on. Indoor fun runs at set speed.
FAN MODE
•
•
Indoor fan runs at the set speed while heater, MTV1, MTV2, AUX1 and AUX2 are turned off.
Indoor fan speed can be adjusted for low, medium and high.
Page.46
HEAT MODE--- WITHOUT ELECTRIC HEATER
•
•
•
•
•
•
•
MTV1, AUX2 and heater always off.
If Tr <= Ts 1 ºC (or -4 ºC if economy contact is activated), heat operation is activated, MTV2 and AUX1 are
turned on. Indoor fan runs at the set speed.
If Tr >Ts, heat operation is terminated, MTV2 and AUX1 are turned off. Indoor fan repeatedly runs at low fan
speed for 30 seconds and stops for 3 minutes.
The range of Ts is 16~30 ºC
Indoor fan speed can be adjusted for low, medium, high and auto.
MTV2 will delay for 30 seconds before it is turned on.
MTV2 will delay for 120 seconds before it is turned off.
﹣
。
HEAT MODE---WITH ELECTRIC HEATER AS BOOSTER
•
•
•
•
•
•
•
•
MTV1 and AUX2 are always off.
If Tr <= Ts 1 ºC (or -4 ºC if economy contact is activated), heat operation is activated, MTV2 and AUX1 are
turned on. Indoor fan runs at the set speed.
If Tr >Ts, heat operation is terminated, MTV2 and AUX1 are turned off. Indoor fan repeatedly runs at low fan
speed for 30 seconds and stops for 3 minutes.
If Ti1<40 ºC, the Electric Heater is turned on. If 40<= Ti1<45 ºC, the Electric Heater is kept original state. If
Ti1>=45 ºC, the Electric Heater is turned off.
The range of Ts is 16~30 ºC
Indoor fan speed can be adjusted for low, medium, high and auto.
MTV2 will delay for 30 seconds before it is turned on.
MTV2 will delay for 120 seconds before it is turned off.
﹣
PRE-HEAT---WITHOUT ELECTRIC HEATER
•
•
•
If Ti1<36 ºC [or 28C depends on DIP setting], when MTV2 and AUX1 are on, indoor fan remains off.
If Ti1>=38 ºC [or30C depends on DIP setting], when MTV2 and AUX1 are on, indoor fan runs at set speed.
If indoor coil temperature sensor is damaged, pre-heat time is set for 2 minutes and indoor fan runs at set speed.
PRE-HEAT---WITH ELECTRIC HEATER
•
•
MTV2 and AUX2 turn on.
Indoor fan will turn on after the Electric Heater is turned on for 10 seconds.
POST-HEAT---WITHOUT ELECTRIC HEATER
•
•
•
•
≧
If Ti2 38ºC, when MTV2 and AUX 1 are off, indoor fan continues to run at set speed.
If 36 °C <= Ti2< =38 °C, when MTV2 and AUX1 are off. Indoor fan keeps original state.
If Ti2<36ºC, when MTV2 and AUX1 are off. Indoor fan runs 30 seconds and stop 3 minutes repeatedly.
If indoor coil temperature coil is damaged, post-heat time is set for 3 minutes with indoor fan running at set
speed.
POST-HEAT---WITH ELECTRIC HEATER
•
Page.47
Indoor fan will turn off after the unit off for 20 seconds.
OVER HEAT PROTECTION OF INDOOR COIL
•
•
•
≧
If Ti2 75 ºC, MTV2 and AUX1 are turned off, indoor fan remains on and runs at high speed.
If Ti2<70 ºC, MTV2 and AUX1 are turned on, indoor fan remains on and runs at set speed.
If indoor coil temperature sensor is damaged, the protection mode will become obsolete and the unit will work
as the Pre-heat and Post-heat set times.
DEHUMIDIFICATION MODE
•
•
•
•
•
MTV2, AUX1 and heater always off.
If Tr 25 ºC, indoor fan, MTV1 and AUX2 will be ON for 3 minutes, and OFF for 4 minutes.
If 16 ºC < =Tr < 25 ºC, indoor fan, MTV1 and AUX2 will be ON for 3 minutes, and OFF for 6 minutes.
If Tr <16 ºC, indoor fan, MTV1 and AUX2 will be turned off for 4 minutes.
At the end of the above dehumidification cycle, system will decide the next dehumidification control option.
Indoor fan will run at low speed throughout the dehumidification process.
≧
AUTOMODE
•
If current running mode is auto cool mode, it will change over to auto heat mode upon satisfy all the conditions
below:
i.
ii.
•
≧
Ts-Tr 1.0°C(or -4 ºC if economy contact is activated)
MTV1 has stop 10 min.
≧
If current running mode is auto heat mode, it will change over to auto cool mode upon satisfy all the conditions
below:
i.
ii.
≧
Tr-Ts 1.0°C(or +4 ºC if economy contact is activated)
MTV2 has stop 10 min.
≧
COMMON FEATURES FOR BOTH 2-PIPES and 4-PIPES SYSTEMS
SLEEP FUNCTION
•
•
•
•
Sleep function can only be set in cool and heat mode
In cool mode, after sleep function is set, the indoor fan will run at low speed and Ts will increase 2 °C during 2
hours.
In heat mode, after sleep function is set, the indoor fan will run at set speed and Ts will decrease 3 °C during 2
hours.
Changing of operation mode will cancel sleep function
Page.48
The COOL mode SLEEP profile is as follows:
ORE TRASCORSE DALLA IMPOSTAZIONE DI SLEEP
HOURS SINCE SLEEP SET
SLEEP INSERITO
SLEEP SET ON
SLEEP DISINSERITO
SLEEP SET OFF
The HEAT mode SLEEP profile is as follows:
SLEEP INSERITO
SLEEP SET ON
SLEEP DISINSERITO
SLEEP SET OFF
ORE TRASCORSE DALL’IMPOSTAZIONE DI SLEEP
HOURS SINCE SLEEP SET
Page.49
AUTO FAN SPEED
•
•
In COOL mode, if Tr<Ts+2°C, indoor fan runs at low speed.
If Ts+2°C≤Tr<Ts+3°C, indoor fan runs at medium speed. If
Tr≥Ts+3°C, indoor fan runs at high speed.
In COOL mode, the fan speed cannot change until it has run at this speed over 30 seconds.
Tr=Ts+3
ALTA VELOCITA
HIGH SPEED
SENSORE LOCALE (Tr)
ROOM SENSOR (Tr)
MEDIA VELOCITA’
MEDIUM SPEED
Tr=Ts+2
BASSA VELOCITA’
LOW SPEED
Tr=Ts
Page.50
•
•
In HEAT mode, if Tr≤Ts-1°C, indoor fan runs at low speed.
If Ts-3°C≤Tr<Ts-1°C, indoor fan runs at medium speed.
If Tr<Ts-3°C, indoor fan runs at high speed.
In HEAT mode, the fan speed cannot change until it has run at this speed over 30 seconds.
SENSORE LOCALE (Tr)
ROOM SENSOR (Tr)
Tr=Ts
BASSA VELOCITA’
LOW SPEED
Tr=Ts-2
MEDIA VELOCITA’
MEDIUM SPEED
Tr=Ts-3
Page.51
ALTA VELOCITA’
HIGH SPEED
SWING / LOUVER (ORIENTAMENTO / DEFLETTORE)
•
•
•
•
•
•
•
•
For remote handset with Control Box – I (Integrated Full Control Version)
Whenever indoor fan is running, louver can swing or stop at the desired position.
Louver angle: 0~100 º, opens clockwise with largest angle at 100 º.
Swing angle: 35~100 º, opens clockwise to 68º.
Below are the 4 fixed positions which can be set from wireless LCD handset.
Position
Angle against vertical
1
2
3
4
35 º
57 º
83 º
100 º
For wired wall pad with Control Box – I (Integrated Full Control Version)
Louver angle: 0~100 º, opens clockwise, and with biggest angle at 100 º.
Swing angle: 35~100 º, opens clockwise to 68º. User may stop louver at any desired poison between 35~100 º.
BUZZER
•
•
If a command is received by a master unit, it will respond with 2 beeps
If a command is received by a slave unit, it will respond with 1 beep.
OPERATION OF CONTROL PANEL ON CASSETTE UNIT
On/Off Switch on the Front Panel
•
•
•
•
•
This is a tact switch to select Cool→Heat→Off operation mode.
In COOL mode, the set temperature of the system is 24ºC with auto fan speed and swing. There are no timer and sleep
modes.
In HEAT mode, the set temperature of the system is 24ºC with auto fan speed and swing. There are no timer and sleep
modes.
Master unit that does not use LCD wall pad will globally broadcast. Please refer to Global Control communication on
page 39 for reference.
Note: When button pressing is effective, master unit buzzer will beep twice and slave unit beeps once.
LED Indication and Error Description
LED lights Indication - with Master-Slave Connection
For unit with handset only
Error message can be found in LED lights on unit body. Table below indicate the error code for master
and all slave unit.
For all units (both master and slave) – Red LED
High speed
Red LED On
For master unit indicating defect status of all slave unit
Unit 2 failure
Blink 2 times, stop 3 sec
Page.52
For all units (both master and slave) – Red LED
Unità 3 guasto
Lampeggia 3 volte, si ferma 3 secondi
Unit 3 failure
Blink 3 times, stop 3 sec
Unit 4 failure
Blink 4 times, stop 3 sec
Unit 5 failure
Blink 5 times, stop 3 sec
Unit 6 failure
Blink 6 times, stop 3 sec
Unit 7 failure
Blink 7 times, stop 3 sec
Unit 8 failure
Blink 8 times, stop 3 sec
Unit 9 failure
Blink 9 times, stop 3 sec
Unit 10 failure
Blink 10 times, stop 3 sec
Unit 11 failure
Blink 11 times, stop 3 sec
Unit 12 failure
Blink 12 times, stop 3 sec
Unit 13 failure
Blink 13 times, stop 3 sec
Unit 14 failure
Blink 14 times, stop 3 sec
Unit 15 failure
Blink 15 times, stop 3 sec
Unit 16 failure
Blink 16 times, stop 3 sec
Unit 17 failure
Blink 17 times, stop 3 sec
Unit 18 failure
Blink 18 times, stop 3 sec
Unit 19 failure
Blink 19 times, stop 3 sec
Unit 20 failure
Blink 20 times, stop 3 sec
Unit 21 failure
Blink 21 times, stop 3 sec
Unit 22 failure
Blink 22 times, stop 3 sec
Unit 23 failure
Blink 23 times, stop 3 sec
Unit 24 failure
Blink 24 times, stop 3 sec
Unit 25 failure
Blink 25 times, stop 3 sec
Unit 26 failure
Blink 26 times, stop 3 sec
Unit 27 failure
Blink 27 times, stop 3 sec
Unit 28 failure
Blink 28 times, stop 3 sec
Unit 29 failure
Blink 29 times, stop 3 sec
Unit 30 failure
Blink 30 times, stop 3 sec
Unit 31 failure
Blink 31 times, stop 3 sec
Unit 32 failure
Blink 32 times, stop 3 sec
Medial speed
For all units - Yellow LED
Yellow Led on
For all units - Green LED
Low speed
Green LED ON
Electric Heater failure
Blink 1 time, stop 3 sec
Indoor coil sensor 2 failure
Blink 2 times, stop 3 sec
Return air sensor failure
Blink 3 times, stop 3 sec
Indoor coil sensor 1 failure
Blink 4 times, stop 3 sec
Indoor coil low temperature protection
Blink 5 times, stop 3 sec
Indoor coil over heat protection
Blink 6 times, stop 3 sec
Water pump failure
Blink 7 times, stop 3 sec
Table 2
For unit with wall pad only
•
Error message can be found in both LED lights on unit body (please refer to Table 2) and wall pad error indication.
(Please refer to item 23 on page 32. )
•
Note: If the address of slave unit is not set LED lights and Wall pad of the master unit will not show the status of the
defective slave unit.
Page.53
LED lights Indication - Without Master-Slave connection
For unit with handset only
High speed
Medial speed
Low speed
Per tutte le unità
For all units
Red LED On
Yellow LED On
Green LED On
For all units - Green LED
Electric Heater failure
Blink 1times, stop 3 sec
Return air sensor failure
Blink 3 times, stop 3 sec
Indoor coil sensor 1 failure
Blink 4 times, stop 3 sec
Indoor coil low temperature protection Blink 5 times, stop 3 sec
Indoor coil over heat protection
Blink 6 times, stop 3 sec
Auto Restart
•
The system uses non-volatile memory to save the present operation parameters when system is turned off or in case of
system failure or cessation of power supply. Operation parameters are mode, set temperature, swing louver’s position,
and the fan speed. When power supply resumes or the system is switched on again, the same operations as previously
set will function.
Drain Pump
•
Drain pump turns on if thermostat cut in during cooling or dehumidification cooling cycle. It remains on for at least 5
minutes after thermostat cut out. During mode change from cooling to non cooling mode, water pump will on for
minimum 5 minutes.
•
Warning! If turn off the system by circuit breaker (or main power supply) the drain pump does not work at
all.
Float Switch
Float-switch open before turning on.
•
If float switch (N/C) is opened before the unit is turned on. MTV1 is off. Drain pump and indoor fan will operate.
After float switch is closed, MTV1 is on.
Float switch is opened, when unit is on.
•
≧
If float switch is opened continuously 5sec, drain pump will work and MTV1 cut off. When the float switch is
closed, the drain pump will run for additional 5 minutes. If the float switch is opened for 10 minutes continuously,
MTV1 will remain off. Indoor fan runs at set speed and system report error.
Page.54
Float switch is opened, when unit is off.
•
If the float switch is opened, the drain pump will work. When the float switch is closed, the drain pump will run for
additional 5 minutes. If the float switch is opened for 10 minutes continuously, system report error.
Electric Heater Safety Switch
•
•
3.5
≧
Before the Electric Heater is turned on, the EH safety switch must be closed. If this contact is opened for 1sec,
heater must be cut off immediately and report error. Once the contact is returned to close position 60sec, reset the
error and heater is allowed to cut in again.
Should EH safety switch be opened
3 times within 60 minutes, heater is not allowed to cut in anymore. Turn off
the unit to reset the fault provided that the switch has returned to close position.
≧
≧
CONTROL BOX – II , NO CONTROL VERSION & CONTROL BOX – III, ZONE CONTROL
VERSION
Definition of Input and Output ports
code
2-Pipe
4-Pipe
Chilled water
Sensor
CN7
Indoor coil
Chilled water coil
Relay 1
PR-O1
Relay 2
PR-O2
Relay 3
PR-O3
Phase
L
Neutral
N
Earth
GND
Digital input
Float switch
Float
Voltage-free (NC)
Voltage output
Water pump
WP
Voltage output (L)
Output
Stepping motor
CN1-4
Output
Alarm
I/O
Analogue Input
Power input
Power input
Page.55
Power On Setting
Power supply to the PCB and all the loads connected to
the voltage outputs. Max length: 5 m.
Power supply to the PCB and all the loads connected to
the voltage outputs. Max length: 5 m.
Power supply to the PCB and all the loads connected to
the voltage outputs. Max length: 5 m.
Voltage-free (NO)
Wiring Diagram
Control Box – II, No Control Version
Page.56
Control Box – III, Zone Control Version
Page.57
Zone Control Wiring Diagram with Control Box – III
Page.58
Control System Operation for 2-Pipe and 4-Pipe System
Power On Setting
•
•
The unit is turned ON, if any of the relays are in powered ON state.
The unit is turned OFF, if all the relays are in powered OFF state.
Alarm
•
If the Float Switch is open for 5 min, the voltage-free alarm contact is closed.
Drain Pump
When the unit is turned ON,
•
if Ti1<15 ºC, the drain pump will be turned on.
•
if Ti1>=15 ºC, the drain pump will be turned off.
When the unit is turned OFF,
the drain pump will be turned off after a delay of 5min.
•
At any time,
•
When the float switch is opened, the drain pump will turn ON.
•
When float switch is close (OFF), the drain pump will turn OFF after a delay 5 min.
Swing / Louver
•
•
When the unit is off, the louver is closed with the largest angle at 100 º (against the vertical). When the unit is
switched ON, the louver opens up to a maximum angle at 87 º (against the horizontal).
When the unit is turned off, the louver will be closed with largest angle at 100 º.
LED Indication and Error Description
LED Indication
High speed
Medial speed
Low speed
Error Description
Indoor Coil Sensor Failure
Water Pump Failure
Red LED On
Yellow LED On
Green LED On
Red LED status
On
L Blink
Yello LED status
Blink
Blink
Green LED status
Blink
Blink
Table 3
Page.59
Sensor Resistance R-T Conversion Table
Resistance :
Beta Constant :
T
(℃)
-30
-29
-28
-27
-26
-25
-24
-23
-22
-21
-20
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
R (25°C) = 10KΩ ± 1%
B (25/85) = 3977 ± 1%
Rmin
(KΩ)
174
163.4
153.6
144.4
135.8
127.8
120.3
113.3
106.7
100.6
94.9
89.51
84.5
79.8
75.39
71.26
67.37
63.73
60.3
57.08
54.05
51.19
48.51
45.98
43.61
41.36
39.25
37.26
35.38
33.6
31.93
30.35
28.85
27.44
Rnom
(KΩ)
182.7
171.5
161.1
151.3
142.2
133.8
125.8
118.4
111.5
105.1
99.03
93.39
88.11
83.17
78.53
74.18
70.1
66.26
62.67
59.28
56.1
53.12
50.3
47.66
45.17
42.82
40.61
38.53
36.56
34.71
32.97
31.32
29.76
28.29
Rmax
(KΩ)
191.8
179.9
168.9
158.5
148.9
140
131.6
123.8
116.5
109.7
103.3
97.41
91.85
86.64
81.76
77.19
72.9
68.88
65.1
61.55
58.22
55.08
52.14
49.37
46.77
44.31
42
39.83
37.78
35.85
3402
32.3
30.68
29.15
T
(℃)
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Rmin
(KΩ)
26.11
24.85
23.65
22.52
21.45
20.44
19.48
18.58
17.71
16.9
16.12
15.39
14.69
14.03
13.41
12.81
12.24
11.7
11.19
10.71
10.24
9.8
9.374
8.969
8.584
8.218
7.869
7.537
7.221
6.92
6.633
6.36
6.099
5.85
Rnom
(KΩ)
26.9
25.59
24.35
23.17
22.06
21.01
20.02
19.7
18.18
17.33
16.53
15.77
15.05
14.37
13.72
13.1
12.52
11.96
11.43
10.93
10.45
10
9.57
9.16
8.77
8.4
8.047
7.71
7.39
7.085
6.794
6.517
6.252
6
Rmax
(KΩ)
27.71
26.34
25.05
23.83
22.68
21.59
20.55
19.58
18.65
17.77
16.94
16.16
15.41
14.7
14.03
13.4
12.79
12.22
11.67
11.15
10.66
10.2
9.765
9.351
8.957
8.582
8.225
7.885
7.56
7.251
6.956
6.675
6.407
6.151
Page.60
Resistance :
Beta Constant :
T
(℃)
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
Page.61
R (25°C) = 10KΩ ± 1%
B (25/85) = 3977 ± 1%
Rmin
(KΩ)
5.614
5.387
5.172
4.966
4.769
4.582
4.402
4.231
4.067
3.911
3.761
3.618
3.481
3.35
3.225
3.105
2.99
2.88
2.774
2.673
2.576
2.483
2.394
2.309
2.227
2.149
2.073
2.001
1.931
1.865
1.801
1.739
1.68
1.623
1.569
1.516
1.466
Rnom
(KΩ)
5.759
5.53
5.31
5.101
4.901
4.71
4.527
4.353
4.186
4.027
3.874
3.728
3.588
3.454
3.326
3.204
3.086
2.974
2.866
2.762
2.663
2.568
2.477
2.39
2.306
2.225
2.148
2.074
2.002
1.934
1.868
1.805
1.744
1.686
1.63
1.576
1.524
Rmax
(KΩ)
5.907
5.673
5.451
5.238
5.034
4.84
4.654
4.477
4.307
4.144
3.989
3.84
3.697
3.561
3.43
3.305
3.185
3.07
2.959
2.854
2.752
2.655
2.562
2.472
2.386
2.304
2.224
2.148
2.075
2.005
1.937
1.872
1.81
1.75
1.692
1.637
1.583
T
(℃)
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
Rmin
(KΩ)
1.417
1.37
1.326
1.282
1.241
1.201
1.162
1.125
1.089
1.055
1.021
0.9891
0.9582
0.9284
0.8998
0.8721
0.8455
0.8198
0.795
0.7711
0.748
0.7258
0.7043
0.6836
0.6635
0.6442
0.6255
0.6075
0.59
0.5732
0.5569
Rnom
(KΩ)
1.474
1.426
1.379
1.335
1.292
1.25
1.211
1.172
1.135
1.1
1.065
1.032
1
0.9697
0.9401
0.9115
0.8839
0.8573
0.8316
0.8069
0.783
0.7599
0.7376
0.7161
0.6953
0.6752
0.6558
0.6371
0.619
0.6015
0.5846
Rmax
(KΩ)
1.532
1.482
1.434
1.389
1.344
1.302
1.261
1.221
1.183
1.146
1.111
1.077
1.044
1.012
0.9818
0.9522
0.9237
0.8961
0.8696
0.8439
0.8192
0.7953
0.7722
0.7499
0.7283
0.7075
0.6874
0.6679
0.6491
0.631
0.6134
4.
TROUBLESHOOTING
Symptoms
Cause
The fan coil does not
start up
Insufficient output
Noise and vibrations
No voltage
Remedy
- Check for presence of voltage
- Check fuse on board
Mains switch in the “OFF posn
- Place in the “ON” position
Faulty room control
- Check the room control
Faulty fan
- Check fan motor
Filter clogged
- Clean the filter
Air flow obstructed
- Remove obstacles
Room control regulation
- Check
Incorrect water temperature
- Check
Air present
- Vent
Contact between metal parts
- Check
Loose screws
- Tighten screws
Page.62
5.
DIMENSIONAL DRAWINGS
CH2O 20G– 30G
Page.63
CH2O 40G– 50G
Page.64
CH2O 60H– 70H
Page.65
CH2O 100H– 120H
Page.66
CH2O 40GB1
Page.67
CH2O 60HB1
Page.68
CH2O 80HB1
143
158
8
0
1
0
5
50
204
Page.69
5
9
1
5
1