Fan Motor; Electrical Data - Ingersoll-Rand SL90 Installation, Operation And Maintenance Manual

61115.10.33
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FAN MOTOR

Observe the compressor cooling fan . The rotation should
be in accordance with the fan rotation decal affixed to the
fan motor . Cooling air should exhaust from the top of the
compressor enclosure .
Should the motor rotation not be correct, put the main
isolator in the OFF position .
Interchange any two fan motor leads at the fan manual motor
starter (MMS) . Close and fasten the starter box door . Recheck
for correct rotation .
Do not operate the machine with the panels removed
as this may cause overheating and operators to be
exposed to high noise levels .
Do not start or operate the machine in temperatures below
or approaching 0 °C (32 °F), because the operation of the
regulation system, the unloader valve, the safety valve, will be
compromised . Your Ingersoll Rand distributor will advise on
low ambient modifications .
80448574 Rev A
INSTALLATION
CAUTION
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ELECTRICAL DATA

An independent electrical isolator should be installed
adjacent to the compressor .
Feeder cables should be sized by the customer/electrical
contractor to ensure that the circuit is balanced and not
overloaded by other electrical equipment . The length of
wiring from a suitable electrical feed point is critical as voltage
drops may impair the performance of the compressor .
Feeder cable connections to studs L1–L2–L3 on isolator
should be tight and clean .
The applied voltage must be compatible with the motor and
compressor data plate ratings .
The control circuit transformer has different voltage tappings .
Ensure that these are set for the specific applied voltage prior
to starting .
Never test the insulation resistance of any part of
the machines electrical circuits, including the motor
without completely disconnecting the Xe controller .
CAUTION
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