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USER MANUAL – Release 1.2 of 01/01/2010
Page 11 of 191
Version: 02/03/2010
2. GENERALITIES
iPro.CHILL is a programmable controller for application on Air Conditioning units up to 4 circuits and 4
compressors per circuit.
It is possible to manage the following units:
•
Air/air
•
Air/water
•
Water/water
•
Condensing Units
All types with:
•
Heating with gas reversibility
•
Free cooling function
•
Recovery function
•
Domestic hot water function
2.1
MAIN FUNCTIONS
Management of the cooling unit with:
•
Single-circuit up to four compressors
•
Four circuits with odd number of compressors among the circuits
•
Four circuits up to 16 compressors
•
Screw compressors
Start-up of configurable compressors:
•
Direct
•
Part winding
•
Star delta
Compressor management with inverter (Not Available):
•
1 compressor per circuit
Configurable soft start-ups:
•
Start-up with unloading valve
•
Idle running valve
•
Gas by-pass valve outside the compressor
Unloaders management:
•
continuous working
•
step working
•
modulating working (screw compressors)
Compressors rotation and temperature control configurable from parameter:
•
by n° of running hours
•
by n° start-up hour
Compressors liquid injection function
•
Control with dedicated PTC probe
Compressors discharge high temperature alarm function
•
Control with dedicated PTC probe
Complete management of two water side pumping units:
•
2 pumps evaporator side
•
2 pumps condenser side
Customised default display of all variables
•
Temperatures
•
Pressures
Other displays available
•
Status of the digital inputs
•
Compressor running hours
•
N° compressor start-ups
•
Evaporator/condenser water pump running hours
•
Time remaining before defrost
•
Percentage of the proportional outputs
•
Compressors discharge temperature
Reset alarms using customised password
•
Historical alarms
•
Compressor thermal overload alarms
Possibility of enabling/disabling the individual circuit
