Brand Name: Copeland
Model Number: QR90K1-TFD-501
Place of Origin: China

In 1990 Copeland introduced the QR line of compressors. The low sound characteristics of this compressor family were quickly recognized by the commercial air conditioning market.
The capacity range of the QR compressor is 7.5 to 12 horsepower (5.6 to 9 KW). All models have four cylin ders 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.
Motors used in these compressors are three phase suction cooled. Effective internal line break motor protection is used in most models.








