Refrigeration Systems


Master-Bilt offers its most complete condensing units in the built-up B-series. These units, factory assembled on a galvanized steel channel leg base, are available from 7 to 40 H.P. Because components are pre-wired and factory mounted, field installation time is minimal.

Standard Features

  • Field installation requires connections for electrical supply and refrigeration lines, evacuation and charging only.
  • Available in compliant scroll and Discus™ compressor models.
  • With or without matching evaporator coils.
  • Liquid line vibration absorber (semi-hermetic only)
  • Adjustable dual pressure control
  • Head pressure control (flooding valve)
  • Suction line vibration absorber (semi-hermetic only)
  • Heavy-duty channel leg base with lockable hood
  • Pre-wired electrical control panel with timer and circuit breaker or fuse block
  • Snap-down hinged weather hood
  • Suction line filter
  • Crankcase heater
  • Liquid line filter/drier
  • Sight glass
  • Liquid & suction line kit with service valve
  • Liquid line solenoid valve (shipped loose)
  • Timer
  • Generously-sized condenser (for 105° to 110°F ambient)
  • Large liquid receiver (for maximum 250 ft. line run)
  • Defrost heater contactor (when required)
  • PSC condenser fan motors
  • Compressor contactor
  • One year limited compressor warranty (optional four year extended warranty available)


  • Water-cooled units
  • Special voltages
  • Oil separator
  • Insulated and heated receiver (thermostatically controlled)
  • Suction accumulator (shipped loose)
  • Coated condenser coils
  • Phase loss/low voltage monitor
  • Factory pre-assembled evaporator coil (includes factory pre-mounting of temperature control and expansion valve)
  • Pre-mounted solenoid at evaporator
  • Master Controller Reverse Cycle Defrost electronic control system
  • Extended four year limited compressor warranty


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