User manual
1592022700 User manual iCHILL 200CX  Rel. 1.0 22/04/2009 
Pg.6/114
2   GENERAL FEATURES 
iCHILL IC200CX is an electronic controller for chiller unit applications having one or two circuits: 
•  Air/air 
•  Air/water 
•  Water/water 
•  Motocondensing 
Additional features: 
•  Heat pump with gas reversibility 
•  Free cooling function 
•  Recovery function 
2.1  MAIN FUNCTION 
Chiller management: 
•  One circuit up to 2 compressors (max 1 capacity step per compressor) 
•  Two circuits with 1 compressor per circuit (max 1 capacity step per compressor) 
•  Screw compressors 
•  Compressor inverter controlled 
Compressor start up: 
•  Direct 
•  Part winding 
Compressor Soft start: 
•  With step valve 
•  Automatic start-unloading (without load) 
•  External by-pass gas valve 
Capacity step control: 
•  Continuous control 
•  Step control 
•  Modulation control (screw compressors) 
Thermoregulation of the compressors 
•  Time running hours 
•  Number of start-up per hour 
Cooling liquid injection 
•  With dedicated PTC probe (for compressor one only) 
High temperature alarm of the compressor discharge side 
•  With dedicated PTC probe (for compressor one only) 
Complete management of two pump groups of the water side 
•  2 pumps evaporator side 
•  2 pumps condenser side 
Display layout customizable 
•  Temperature 
•  Pressure 
•  Time / RTC in real time 
Other display readings 
•  Safety digital inputs 
•  Compressors running hours 
•  Number of compressor start-up 
•  Pump running hours 
•  Delay counting to the next defrost 
•  Proportional output percentage status 
•  Compressors discharge temperature 
Alarm reset with custom password 
•  Alarm list 
•  Compressor thermal protection alarm 
Pump down management 
•  With dedicated pressure switch 
•  With low pressure switch 
•  With low pressure transducer 
Unloading circuit 
•  High temperature of the evaporator inlet water 
•  High temperature of the condenser inlet water (unit with recovery) 
•  High condensing pressure 
•  Low evaporating pressure 
Maintenance messages 
•  Compressors 
•  Evaporator pumps 
•  Condenser pumps 
Weekly Energy saving 










