Control Procedures For Auxiliary Equipments - Carrier 16LJ-F Series Operation Manual

2-3. CONTROL PROCEDURES FOR AUXILIARY EQUIPMENTS

(1) On-off control of the auxiliary equipments such as chilled water pump, cooling water pump, cooling
tower fan and hot water pump shall be linked to the absorption chiller operation for the safety of the
absorption chiller.
(2) It is necessary to operate the auxiliary equipments following the interlocking signal from the chiller.
Those equipments and the chiller shall be wired according to the manufacture's specified wiring
diagram. The chiller includes "chilled water pump on-off signal" and "cooling water pump on-off
signal" and "hot water pump on-off signal" as standard equipment system.
(3) The chiller also includes "cooling tower fan on-off signal" as standard.
Operation signal
ON
OFF
Chiller
RUN
STOP
Cooling tower fan ON
on-off signal
OFF
Cooling water
ON
flow switch
(option) OFF
Cooling water
ON
pump on-off
OFF
signal
Hot water pump
ON
on-off signal
OFF
1
Chilled water
ON
pump on-off
OFF
signal
Chilled water ON
flow switch
OFF
Cooling tower fan
RUN
STOP
Cooling water
RUN
pump
STOP
Chilled water
RUN
pump
STOP
Hot water pump
RUN
STOP
AHU or FCU ON
OFF
7
9
5
8
3
5
4
6
6
2
2
10
11
Chiller stop
12
13
13
20
15
14
14
16
16
17
19
2-3
1 hour after chiller stop
21