Compressor Oversized

Probable Cause:

Due to wrong capacity selection, the direct drive
motor is running too fast.

Wrong size pulley (low suction pressure).

Evaporator’s design capacity is less than the
actual load.

 

Remedy:

Reselect the compressor, replace direct drive,
motor for proper speed.

Reduce the compressor speed by installing the
proper size pulleys, or provide compressor
capacity control.

Match evaporator to load requirements.