CMC

CMC

Version:

MCC/LC

Compressor units for machinery room installation

The units have a galvanised and polyester painting steel casing (RAL 7035). The basic version comes with the following: compressors, liquid receiver fitted with safety valve, shut-off valve and filter on the liquid line (only for scroll units), general safety high pressure switch (manual reset) and LP (automatic reset), high pressure switch with automatic reset for compressor, 2 low pressure switches for electromechanical safety, pressure switches for condensing regulation, direct parallel of compressors, inlet pressure sensor, low and high pressure manometers, liquid and oil sight glasses, oil separator.

On request, units can be supplied complete with:

  • Rubber vibration dampeners D
  • Special wooden crate packing P
  • Filter and shut-off valve on suction line FSA
  • Electrical panel QEM
  • Controller MRACK or EKC331
  • Electronic oil level (trax oil) TXO
Compressor

The units come with two different compressor types:

  • Semihermetic: MCC/LC x B, Bitzer - MCC/LC x F, Frascond.
  • Scroll: MCC/LC x C, Copeland

All compressors are fitted with suction and discharge valves, charging connections, crankcase heater, oil sight glass, oil charge and rubber vibration dampeners.

50 Hz three-phase electric motors are protected by internal thermistors, in the lower power units, and by an external Kriwan module in the other models.

On request the compressors and fans can be supplied with a different voltage and frequencies.
QEM Electrical panel (optional)

Installed on the unit, it includes: door main switch, thermal relay compressor and condenser fans, protection fuses (opt with automatic switches), compressor contactor and condenser fans, compressor delayed start-up timer, protected secondary circuit by transformer, warning lights, terminal box ready for: pressure switches, fan speed regulator and Kriwan.

The regulation of the compressor pack is made by pressure steps controller, complete with serial card (optional) for connection to a monitoring system. In order to avoid units stops due to controller brake down, the unit foresees also a safety regulation by pressure-switch.

The electrical panel is supplied with all components completely wired (compressors, fans, pressostats,etc.)