Standard compound controller with 3 compressors controlled by evaporation temperature
Compressor 1 constant (FC), compressors 2 and 3 directly controlled
Simple base load change
Monitoring of suction gas temperature
Oscillation protection function
Blocking time after compressor fault
Two-step load shedding and fast return flow
Operating hours counter for each compressor
Low temperature compressor control after pump-down
High and medium pressure control
Gas cooling fan control
Additional control circuits for:
Load shedding
Deheater
Fluid post-injection
Refrigerant monitoring
Heat recovery
Pressure monitoring
Integrated relay outputs
Bus connection by patch cable
Fastening via top-hat rail
Connection to the Wurm system through a Wurm CAN communication bus (C-BUS) and FRIGODATA XP
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