Single Duct Pneumatic Control Diagrams

OPEN
4
FAN
3
F
1/OPN
3
H
2/CLO
0-10V
OUT
OUTPUTS
SWITCHED
COM
DAMPER
OUT
(USA) 019917-007
(CAN) 020171-001
0-10
COM
COM
CW
CCW
NOTE 1:
TRANSFORMER
SECONDARY COM
MUST BE EARTH
GROUNDED
PRICE
SUPPLIED
ACTUATOR
OPN
2
CLO
1
-24V COM
COM
+24V HOT
NOTE 2:
WIRES 1-6 ARE PLENUM RATED CABLES FOR
24VAC POWER AND CONTROL CIRCUITS
MAX 10VA PER CONTACTOR
*STAGES 2 AND 3 ARE OPTIONAL
C
24VAC BINARY OUTPUTS
PAC - PRICE ANALOG CONTROLLER
PAC - 250000-600
24VAC
POWER
SAT
SENSOR
LINKER
PAC THERMOSTAT
SERVICE
HOT
COM
1
2 3
4
5
6 7
8
L H
NOTE 3: DO
NOT USE
GAUGE TAPS!
L
H
CONTACT
FLOW SENSOR
6
5
AIR FLOW
COM
CLOSE
Control Sequence
Number 5803
FAN POWERED
DIGITAL CONTROLS
R
PAC DIAL STAT
250055-100
AIR FLOW
SUPPLY AIR TEMPERATURE
(SAT) SENSOR
(OPT. - REQUIRED FOR HCCO)
250000-050
Calibration note: Suitable min and max heating flows must be
selected in order to maintain flow through energized electric coils
of at least 200 fpm and at least 70 cfm/kW throughout the entire
operating range.
LEGEND
FACTORY FLOW SENSOR TUBING
FACTORY ELECTRICAL WIRING
FIELD ELECTRICAL WIRING
CONTROL GRAPH
Continuous Fan Operation
Ai
r
Ai
r
ol
m
On
Co
at
He
ar
Air Vol
Max Heating
Max. Cooling
W
Min. Heating
Min. Cooling
Room
Set point
Cool
Room Condition
1
4
5
6
7
8
Warm
R
ENGINEER:
CUSTOMER:
SUBMITTAL DATE:
3
Sequence of Operation -- Constant Volume Heat/cool changeover
OR cooling With up to 3 stage binary reheat - Pressure Independent
On power up the damper will calibrate closed for 2 minutes.
**If no SAT sensor is present, the controller assumes Cool supply air at all
times**
While the space is occupied, the unit fan operates continuously supplying a
constant volume of supply air.
Cool supply air: On an increase in space temperature the controller regulates
the actuator to open the VAV damper and increase the flow of cool air. On an
increase of space temperature greater than the cooling proportional band, the
airflow is maintained at its pre-selected maximum setting.
On a decrease in space temperature the controller regulates the actuator to
close the VAV damper and reduce the flow of cool air. If the space temperature
decreases to less than the cooling proportional band, the airflow is maintained at
the pre-selected minimum setting.
Warm supply air: On a decrease in space temperature the controller regulates
the actuator to open the VAV damper and increase the flow of warm air. On a
decrease of space temperature greater than the heating proportional band, the
airflow is maintained at its pre-selected maximum setting.
On an increase in space temperature the controller regulates the actuator to
close the VAV damper and reduce the flow of warm air. If the space temperature
increases above the heating proportional band, the airflow is maintained at the
pre-selected minimum setting.
Reheat Operation: On a decrease in space temperature into the heating
proportional band, the HW valve is modulated to increase heat proportionally to
room demand.
PROJECT:
C Copyright PRICE INDUSTRIES LIMITED 2014
2
264453
SPEC. SYMBOL:
FAN POWERED
PAC
C.V.PRESSURE INDEPENDENT
HEAT/COOL C/O OR COOLING
WITHFIELD WIRED TRI-STATE HW
2014/03/14
REV
0
FAN
3
+24V HOT
1
-24V COM
2
NOTE 2:
WIRES 1-4 ARE PLENUM RATED CABLES FOR
24VAC POWER AND CONTROL CIRCUITS
MAX 10VA PER CONTACTOR
ANALOG OUTPUT MAX: 10mA
(USA) 019917-007
(CAN) 020171-001
0-10V
OUT
OUTPUTS
SWITCHED
H
COM
DAMPER
OUT
0-10
COM
OPN
CLO
PRICE
SUPPLIED
ACTUATOR
COM
COM
CW
CCW
NOTE 1:
TRANSFORMER
SECONDARY COM
MUST BE EARTH
GROUNDED
3
2
1
F
C
24VAC BINARY OUTPUTS
PAC - PRICE ANALOG CONTROLLER
PAC - 250000-600
24VAC
POWER
SAT
SENSOR
LINKER
PAC THERMOSTAT
SERVICE
HOT
COM
1
2
3
4
5
6
7
8
L H
NOTE 3: DO
NOT USE
GAUGE TAPS!
L
H
CONTACT
FLOW SENSOR
4
AIR FLOW
0-10VDC
Control Sequence
Number 5804
FAN POWERED
DIGITAL CONTROLS
R
PAC DIAL STAT
250055-100
AIR FLOW
SUPPLY AIR TEMPERATURE
(SAT) SENSOR
(OPT. - REQUIRED FOR HCCO)
1
250000-050
Calibration note: Suitable min and max heating flows must be
selected in order to maintain flow through energized electric coils
of at least 200 fpm and at least 70 cfm/kW throughout the entire
operating range.
LEGEND
FACTORY FLOW SENSOR TUBING
FACTORY ELECTRICAL WIRING
FIELD ELECTRICAL WIRING
CONTROL GRAPH
Continuous Fan Operation
Max Heating
Max. Cooling
ol
Ai
r
a
He
Co
m
Ai
r
ar
Air Vol
W
n
tO
Min. Heating
Min. Cooling
Room
Set point
Cool
Room Condition
5
6 7
8
Cool supply air: On an increase in space temperature the controller regulates
the actuator to open the VAV damper and increase the flow of cool air. On an
increase of space temperature greater than the cooling proportional band, the
airflow is maintained at its pre-selected maximum setting.
On a decrease in space temperature the controller regulates the actuator to
close the VAV damper and reduce the flow of cool air. If the space
temperature decreases to less than the cooling proportional band, the airflow is
maintained at the pre-selected minimum setting.
Warm supply air: On a decrease in space temperature the controller
regulates the actuator to open the VAV damper and increase the flow of warm
air. On a decrease of space temperature greater than the heating proportional
band, the airflow is maintained at its pre-selected maximum setting.
On an increase in space temperature the controller regulates the actuator to
close the VAV damper and reduce the flow of warm air. If the space
temperature increases above the heating proportional band, the airflow is
maintained at the pre-selected minimum setting.
Reheat Operation: On a decrease in space temperature, the controller
modulates the 0-10VDC ouput to increase heat proportionally to the room
demand.
Warm
R
ENGINEER:
CUSTOMER:
SUBMITTAL DATE:
4
Sequence of Operation -- Constant Volume Heat/cool changeover
OR Cooling With Analog modulating reheat - Pressure Independent
On power up the damper will calibrate closed for 2 minutes.
**If no SAT sensor is present, the controller assumes Cool supply air at all
times**
While the space is occupied, the unit fan operates continuously supplying a
constant volume of supply air.
PROJECT:
C Copyright PRICE INDUSTRIES LIMITED 2014
2 3
264454
SPEC. SYMBOL:
FAN POWERED
PAC
C.V.PRESSURE INDEPENDENT
HEAT/COOL C/O OR COOLING
WITH FIELD WIRED ANALOG HW
2014/03/14
REV
0

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