Two-Stage Condensing Units and Systems
Two-stage condensing units with Bitzer compressors, matched with one or two 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. |
Bitzer two-stage compressor condensing unit
- 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 with 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 dryer
- 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
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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
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