Champion Compressors Ltd. Manual No. 975203 Rev H
12
7.3.2 Ci 75 / 110 (Star-delta, CSU)
The main supply leads connect to the compressor through conduit entry
points on both the cabinet panels and electrical enclosure. The three phase
wires connect directly to terminals marked. Connection of the earth wire
should be bolted to the starter enclosure using the M6 earthing bolt provided.
Please refer to the circuit diagram supplied with your machine.
Fig. 2 - Electrical Connection - Ci75SD - 110
7.3.3 Motor Rotation Direction
The power supply must be correctly connected for the motor to rotate in the
correct direction. This can be checked by toggling the Off/Auto switch located
on the pressure switch / starter (Stop / Start) or the compressor lid (Star-
Delta, CSU). Note that if your machine is fitted with an auto restart facility,
there may be a delay of up to 30 seconds after toggling the Off/Auto switch.
The motor and airend rotate in the direction indicated by the arrow marked ‘D’
on the airend and motor fan cowling (anti-clockwise viewed from drive shaft
end). In the event that the motor has been disconnected or removed for
service reasons, ensure that the power supply is reconnected in the correct
sequence prior to start-up.
Change incoming power leads only. Refer to Work instruction Q36-34a
for correct wiring sequence.
WARNING: Rotation in the wrong direction will damage the airend and
will void warranty.
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