1592015610 User manual IC200D EVO GB rel1.0 10.11.2015_rev10
IC200D
70/192
In this configuration, the logic of switching on and off of the compressors (parameters CO14 and CO15) is
partially active; it is possible to switch on a compressor of a specific circuit, but in case of machine
configuration which provides more than one compressor in a circuit is the controller to determine which
compressor has to be switched on according to the logic determined by parameter.
For this operation mode it is not possible to configure the compressor rotation by operation time (CO72 must
be set to 0).
24.5 ERROR OF CONDENSING UNIT
Possible alarms:
• In case of contemporary activation of the digital inputs congured as chiller regulation request and heat
pump regulation request the unit is placed in the OFF and the upper display the label Ferr.
• In case of incorrect configuration of the digital inputs (function enabled and not set up the correct number of
inputs, or if the number of digital input and the number of
compressors doesn’t correspond), it will be
reported the alarm configuration ACF4.
25.
EVAPORATOR WATER PUMP / SUPPLY FAN (AIR/AIR UNIT)
Water pump / supply fan operation mode:
CO16=0:
Not enabled: water pump/supply fan is not managed.
Attention:
The air / air unit configured with CO16= 0 does not manage the output for integration heaters.
CO16 = 1:
Continuous control
The water pump / supply fan 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 CO18>0).
The parameter Ar09 allows to set the status of the water pump in case of antifreeze if the Ichill is in stand-by.
CO16
= 2:
on compressor demand
The water pump / supply fan 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 / supply fan is switched off after CO18 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.
Evaporator 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.
25.1 EVAPORATOR PUMP GROUP
It is possible to configure two evaporator water pumps; the water pump to be activated is the pump with less
working hours.
When a water pump works continuosly for CO19 time, the other one is switched on and after CO20 second
the first one is switched off.
If a water pump overload occurs, the water pump is switched off and the other one is switched on.
Note: During the defrost and when the compressor is off in dripping time, the pump is on.
