Technical data

Ichill 200CX EVO rev 1.1 14/11/2013
Pag. 38 of 151
Keyboard selection
CF58 = 0: pushing key the unit starts in chiller, pushing key the unit starts in heat pump
CF58 = 1: pushing
key the unit starts in heat pump, pushing key the unit starts in chiller
Analog input selection
CF58 = 0 NTC, External air temperature probe > CF60+ CF61 the unit starts in chiller, NTC, External air
temperature probe < CF60
the unit starts in heat pump.
CF58 = 1 NTC, External air temperature probe > CF60+ CF61
the unit starts in chiller, NTC, External air
temperature probe < CF60 the unit starts in heat pump.
16. COMPRESSOR REGULATION
CF74
Working mode of the compressor
0 = chiller and heat pump
1 = only chiller
2 = only heat pump
0 2
It is possible to decide how many compressors are used in chiller, heat pump and sanitary water production.
o parameter CO76: number of compressors to use in chiller
o parameter CO77: number of compressors to use in heat pump
o parameter CO78: number of compressors to use in sanitary water
In case of contemporary production of sanitary water and chiller the number of compressors is defined
by sanitary water request.
16.1 Compressor Security Time
o CO01 Minimum ON time of the compressor after switching on
o CO02 Minimum OFF time of the compressor after switching off
o CO91 Minimum time between two switch on of the same compressor
17. CHILLER / HEAT PUMP REGULATION
17.1 Parameter Description
Par. ST01 Chiller Setpoint
It allows to set the chiller working temperature within the range ST02..ST03.
Par. ST02 Minimum setpoint limit in chiller.
The user cannot program a setpoint value lower than ST02, the range is –30 °C..ST01.
Par. ST03 Maximum setpoint limit in chiller.
The user cannot program a setpoint value higher than ST02, the range is ST01..70°C.
Par. ST04 Heat pump setpoint
It allows to set the Heat pump working temperature within the range ST05..ST06.
Par. ST05 Minimum setpoint limit in heat pump.
The user cannot program a setpoint value lower than ST05, the range is –30 °C..ST04.
Par. ST06 Maximum setpoint limit in heat pump
The user cannot program a setpoint value higher than ST06, the range is ST01..70°C.
Par. ST07 Regulation band width in chiller mode.