Emerson Dixell iChill IC207D - WATER PUMP OF CONDENSER SIDE; CONDENSER WATER PUMP CONTROL; CONDENSER PUMP GROUP

1592015610 User manual IC200D EVO GB rel1.0 10.11.2015_rev10 IC200D 72/192
Parameter
Description
min
max
udm
US 53
Probe 1 selection for evaporator water pump modulation in Heat Pump
0
10
US 54
Probe 2 selection for evaporator water pump modulation in Heat Pump
0
10
US 55
Set point for maximum speed of modulationg evaporator water pump in Heat
Pump
30.0
-58
0.0
0
70.0
158
50.0
725
°C
°F
Bar
Psi
Dec
int
Dec
int
US 56
Proportional band for maximum speed of modulationg evaporator water pump
in Heat Pump
0.0
0
0.0
0
25.0
45
14.0
203
°C
°F
Bar
Psi
Dec
int
Dec
int
US 57
Minimum speed of the evaporator water pump in Heat Pump
0
100
%
US 58
Maximum speed of the evaporator water pump in Heat Pump
0
100
%
26. WATER PUMP OF CONDENSER SIDE
26.1 CONDENSER WATER PUMP CONTROL
Water pump operation mode:
CO21=0: Not enabled: water pump is not managed.
CO21 = 1: Continuous control
The water pump is ON only if the unit is running (chiller or heat pump).
When the Ichill is switched on in chiller or heat pump, the water pump is immediately activated and the first
compressor is switched on after CO17 delay.
When the Ichill is in STD-BY or remote OFF the water pump is OFF (with a delay if CO23>0).
The parameter Ar09 allows to set the status of the water pump in case of antifreeze if the Ichill is in stand-by.
CO21 = 2: on compressor demand
The water pump is ON only if at least a compressor is ON; in case of compressor activation, the water pump
is switched on CO17 before the compressor.
When the last compressor is switched off, the water pump is switched off after CO23 delay from compressor.
When the unit is in stand-by or remote off and the Ar09 =1, if the regulation requires the antifreeze heaters
also the water pump is turned on.
The pump is always off when:
 Remote OFF from digital input.
 Water pump overload.
 Condenser flow switch alarm if MANUAL reset.
During the defrost and when the compressor is off in dripping time the water pump/supply fan is on.
26.2 CONDENSER PUMP GROUP
It is possible to configure two condenser water pumps; the water pump to be activated is the pump with less
working hours.