Motor Rotation Direction Check - Sullair 3000P User Manual

3000P-4500 USER MANUAL
4.7 MOTOR ROTATION
DIRECTION CHECK
Motor rotation check must be made at compressor
start- up. The compressor can be damaged if it runs
in the wrong direction for more than a few seconds.
Motor rotation can be viewed through the opening in
the drive adapter housing. After the electrical wiring
has been done, it is necessary to check the direction
of the motor rotation. Pull out the EMERGENCY
STOP button and press once, quickly and in
succession, the " " (START) and "
pads. This action will bump start the motor for a very
short time. When looking at the motor from the end
opposite the compressor unit, the shaft should be
turning clockwise. If the reversed rotation is noted,
disconnect the power to the starter and exchange
any two of the three power input leads, then re-check
rotation. A "Direction of Rotation" decal is located on
the motor drive housing to show proper motor/
compressor rotation. An alternative to this procedure
is to set the WS Controller to display P1 separator/
58
sump tank pressure. Pull out the EMERGENCY
STOP button and press once, quickly and in
succession, the "
pads. This action will bump start the motor for a very
short time. If motor rotation is correct there will be
immediate pressure shown. If no pressure is present,
reverse rotation is occurring. Disconnect the power
to the starter and exchange any two of the three
power input leads. Recheck rotation as outlined
above.
Fan motor rotation should also be checked. It should
" (STOP)
rotate counter-clockwise when viewing the fan motor
from the backside of the motor.
SECTION 4
" (START) and " " (STOP)