Refrigeration Systems

Remote condensing units consist of a condenser coil, compressor, receiver tank and other components assembled on a common base. Remote systems may be used with walk in coolers and freezers, reach ins, merchandiser display cases and other equipment. 

As the name implies, remote systems are located away from refrigeration equipment, frequently outside a building or on a roof. Remote location allows heat produced from the system to be released outside without increasing inside building temperatures or the air conditioning load. 

Master-Bilt’s M-Series models are specially designed to function in high temperature environments with a standard weather hood to protect from the elements. All components are pre-wired and factory mounted. Compressor choices include hermetic (compressor and motor sealed inside one housing) and compliant scroll (two interleaving scrolls compress refrigerant contained inside). M-Series units are also available with or without matching evaporator coils.

Standard Features

  • EPA SNAP compliant with HFO blended refrigerants (R448A/R449A)
  • Medium temp units available in hermetic and compliant scroll compressor models
  • Compliant, energy efficient scroll compressors featured exclusively in low temp units for added reliability
  • With or without matching evaporator coils
  • Factory assembled on a galvanized steel angle leg base.
  • Range from 1/4 to 15 H.P.
  • Generously-sized condenser for dependable performance
  • Pre-piping kit including sight glass
  • Pre-wiring kit (defrost timer standard on low temp models only)
  • Preset non-adjustable high and low pressure controls for medium temp units. Non-adjustable high and adjustable low pressure controls for low temp.
  • Crankcase heater
  • Head pressure control valve ensures proper operation in low ambient conditions
  • Suction service valve
  • Heavy-duty galvanized steel base
  • Liquid line filter/drier
  • Pre-wired electrical control panel
  • Timer (standard on low temp models only)
  • Compressor contactor
  • Defrost heater contactor (when required)
  • Rifled tubes in condenser add efficiency
  • PSC condenser fan motors
  • Large liquid receiver (for max. 100 ft. line run)
  • One year limited compressor warranty (optional four year extended warranty available)


  • Special voltages
  • Insulated and heated receiver (thermostatically controlled)
  • Suction accumulator (shipped loose)
  • Coated condenser coils
  • Oil separator
  • Phase loss/low voltage monitor
  • Factory pre-assembled evaporator coil (includes factory pre-mounting of thermostatic air control and expansion valve)
  • Factory pre-charged system with quick connect liquid and suction line sets up to 50 ft. (specify length when ordering)
  • Adjustable low pressure control for medium and high temp units
  • Dual pressure control (adjustable)
  • Circuit breaker
  • Suction filter
  • Fan cycling switch
  • Pre-mounted solenoid at evaporator
  • Liquid line solenoid valve (shipped loose)
  • Timer for medium temp units
  • Heavy-duty rack base
  • Energy saving Master Controller electronic control system
  • Reverse Cycle Defrost option for Master Controller 
  • Extended four year limited compressor warranty


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