Refrigeration Systems

M-Series High Ambient Remote Condensing Units

Master-Bilt’s M-Series models are specially designed to function in high temperature environments.

Components are pre-wired and factory mounted. Package options on the basic standard remote unit include a factory pre-charged system with quick-connect liquid and suction line sets up to 50 ft.

M-Series units are available in hermetic and compliant scroll compressor models, with or without matching evaporator coils. They are factory assembled on a galvanized steel angle leg base and range from 1/4 to 15 HP. For needs above 15 HP, please consult factory for the best option, including high efficiency rack systems.

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)

Options

• 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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