
1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005
Pg.8/106
2 GENERAL FEATURES
iCHILL IC200L 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 4 compressors
• Two circuits with different compressor number per circuit
• Double circuit up to 6 compressors
• Screw compressors
Compressor start up:
• Direct
• Part winding
• Star - delta
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
High temperature alarm of the compressor discharge side
• With dedicated PTC probe
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
Single circuit stand-by
• Circuit maintenance
• To work with only one circuit
Single compressor stand-by
• Compressor maintenance
• Compressor malfunction
Pump down management
• With dedicated pressure switch
• Low pressure switch
• 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
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