Compressor Rotation; Fan Rotation - Quincy QSI-90 Instruction Manual

Compressor Rotation

Compressor rotation must be checked
prior to start-up. Proper rotation is
clockwise (as viewed from the power-
input end). The power-input end of the
compressor is marked with an arrow
noting the proper rotation. Operating the
compressor in incorrect rotation will result
in extreme damage to the compressor

Fan Rotation

QSI compressors use a centrifugal fan.Fan
rotation is checked making sure the fan
ratation matches the arrow decal. The fan
must rotate in the direction indicated by
the arrow.
Section III - Installation
and warranty coverage will be voided. To
check for proper rotation, jog the starter
button, allowing the motor to turn 2 or 3
revolutions. Observe the drive element
for correct direction. If incorrect rotation is
observed, lock out power supply, reverse
electrical leads L and L
1
starter. Recheck for correct rotation.
Alternate method to check rotation is to
remove drive coupling element prior to
bump starting the motor.
NOTICE!
Never assume the fan rotation
is correct based on the induced
air flow across the coolers. A
centrifugal fan can pull the airflow
across the coolers when rotating
in either direction, however,
incorrect rotation will cause a
high discharge temperature.
at the motor
3
15