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6. Rotation - Check for correct motor rotation by jogging the motor. See “Unit Setup Adjustments” in
Controller Operating and Service Manual. Compressor drive shaft rotation must be
counterclockwise, standing facing the compressor sheave.
WARNING
Operation with incorrect motor rotation can damage equipment and cause oil
eruption from the compressor inlet. When checking motor rotation, induce
minimum rotation (less than one revolution if possible). Never allow motor to
reach full speed.
WARNING
The compressor unit’s direction of rotation must be check every time the
compressor is reconnected to the power supply.
7. System Pressure - The discharge pressure of the unit is set at the factory. To change the
discharge pressure, set the controls to the desired load pressure. DO NOT EXCEED THE
MAXIMUM OPERATING PRESSURE ON THE COMPRESSOR NAMEPLATE. See "Operating
Adjustments" in Controller Operating and Service Manual.
WARNING
Operation at excessive discharge air pressure can cause personal injury or
damage to equipment. Do not adjust the full discharge air pressure above the
maximum stamped on the unit nameplate.
8. Operating Mode - Refer to SECTION 4, page 17 for detailed information on the control system.
9. Enclosure - Check for damaged panels or doors. Check all screws and latches for tightness. Be
sure doors are closed and latched.
DANGER
The compressor starts and stops automatically. Automatic restarting can
cause injury or death. Open, lockout and tagout main disconnect and any other
circuits before servicing the unit.
WARNING
The enclosure doors must be in place and fastened down to keep the
compressor package from overheating when the compressor is running.
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