Model Number

QXR-1

Basic Application Information for Hermetic Compressors

Lanhai hermetic compressors are engineered to do specific air conditioning and refrigeration tasks. Hermetic compressors are designed for a particular evaporator temperature range and a specific refrigerant.

A. Evaporator Temperatures

The key specification is the evaporator temperature of the system. Compressors which are operating outside their design evaporator temperature range can be expected to have poor pumping efficiency and experience motor problems. Lanhai hermetic compressors are designed for one of the following evaporator temperature ranges shown in Table 1-1.

B. Refrigerant

Use only the serial label refrigerant when charging the system. Using a different refrigerant can lead to excess system pressure, damage to the compressor and an explosion. For example, using R-502 in a compressor designed for R-12 can lead to higher operating pressures that can overload the bearings and overwork the motor. Use of a refrigerant other than the serial label refrigerant will void the compressor warranty.

Application Approved Evaporator Temperatures

Air Conditioning +32?F to +55?F
Improved Performance Air Conditioning +32?F to +57?F
Heat Pump (Approved Models) -15?F to +55?F
High Evaporator Temperature +20?F to +55?F
Medium Evaporator Temperature -10?F to +30?F
Low Evaporator Temperature -30?F to +10?F
(Normal Torque Motor)
Low Evaporator Temperature -40?F to +10?F
(High Torque Motor)
Commercial 0?F to +50?F