Product Description

In 1990 Copeland introduced the QR line of compressors.

The capacity range of the QR compressor is 7.5 to 12 horsepower (5.6 to 9 KW). All models have four cylinders and a double scotch yoke assembly in place of the normal piston rod assembly. The pistons, yokes, and slide blocks are made of special alloyed aluminum and the piston rings are cast iron. The pistons are housed in the rugged compressor body which uses precision bearings and a steel forged crankshaft well suited for high speed operation.

The five basic QR models are available with either stub tube or threaded rotalock external connections. Motors used in these compressors are three phase suction cooled. Effective internal line break motor protection is used in most models. An external solid state protection module, coupled with internal temperature sensors, is used on one special voltage QR15 model. The compressor is internally lubricated with a low foaming white mineral oil and external wrap-around crankcase heaters are standard on all models.

Product Features 

• Low Discharge Pulse Levels

• Lower Airborne Sound Transmission

• Wide Selection Range

• 50 Hertz 68200 to 119100 BTUH

                 17200 to 30000 KCALH

                 20000 to 34900 WATTS

• 60 Hertz 85300 to 142000 BTUH

                 21500 to 35800 KCALH

                 25000 to 41600 WATTS

• Wide Voltage Selection

• Wide Operating Range

• Internal Suspension

• Semi-Directional Gas Flow for Even Motor Cooling

• Low Foaming Mineral Base Lubricant

• Oil Level Test Valve

• Full Maximum Load Rundown Capability

• Internal Inherent Line Break Motor Protection on TFC, TFD, TFE Models

• Solid State Motor Protection on TSD Model

• Crankcase Heater on All Models

• Rotalock Connections or Stub Tubes

• Optional Oil Sight Glass

• Convenient Arrangement of Fittings and Terminal Box

• Nomenclature Reflects Nominal Capacity

Product Specification