Two-Stage Condensing Units & Systems

Two stage condensing, units with Bitzer compressors, matched with 1 or 2 Medium Profile evaporators are designed for applications requiring a suction temperature below -40° F SST. The two stage system can operate down to -65° F SST which allows for room temperatures down to -50° F. These systems are ideal for blood, plasma, pharmaceutical, food and various other storage needs.

Standard Features

Condensing Unit

• Bitzer two stage compressor
• Discharge and suction vibration eliminators
• Discharge muffler
• Encapsulated high pressure switch
• Adjustable low pressure switch with superhose
• Crankcase heater and crankcase pressure regulator
• Compressor contactor w/circuit breaker
• Floating Tube™ coil design
• Flooded head pressure controls
• Pressure fan cycling (multiple fan units)
• Oil separator - return line solenoid valve and time delay
• Mechanical subcooler
• Replaceable core liquid line filter drier
• Suction accumulator and replaceable core suction filter
• Defrost timer
• Defrost heater and evaporator fan contactors with fusing
• Phase monitor, anti short cycle timer, and pumpdown switch

Evaporator

• Thermo-Flex™ coil design
• Thermostatic expansion valve factory installed
• Liquid line solenoid valve factory installed
• Low temperature motors
• Double wall insulated drain pan
• Adjustable defrost termination and fan delay

Notes

For more information, please contact your local Sales Representative or Account Engineer.

Certifications