3000PB, 3700B, 4500B, 3000PVB, 3700VB, 4500VB User Manual 4: Installation
02250216-786 R01
Subject to EAR, ECCN EAR99 and related export control restrictions. 49
and (Stop) pads. This action will bump start the
motor for a very short time. When looking at the motor
fro
m 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/sump tank pressure.
Pull out the EMERGENCY STOP button and press once,
quickly and in succession, the (Start) and
(Stop) 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 ch
ecked. It should
rotate counter-clockwise when viewing the fan motor
from the backside of the motor.
Figure 4-2: Motor rotation direction
A. Fan motor rotation direction
B. Main motor rotation direction
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