Electrical Preparation- Supervisor; Motor Rotation Direction Check - Sullair LS-100L Operator's Manual

1. Check incoming voltage. Be sure that compres-
sor is wired for the correct incoming voltage.
2. Check starter for correct size, proper overload
relay, and heaters.
3. Check all electrical connections for tightness.
4. "DRY RUN" the electrical controls by disconnect-
ing the three (3) motor leads from the starter.
Energize the control circuits by pressing the
" " pad, and check all protective devices to
be sure that they will de-energize the starter coil
when tripped.
5. Reconnect the motor leads and jog the motor for
a direction of rotation check as explained in
Section 4.8.
Wiring diagram for standard compressors is sup-
plied on the inside cover of the Control Center.
Optional compressor wiring diagrams will vary.
4.7 ELECTRICAL PREPARATION- SUPERVISOR II
Interior electrical wiring is performed at the factory.
Required customer wiring is minimal, but should be
done by a qualified electrician in compliance with
OSHA, National Electric Code and/or any applica-
ble local electrical code concerning isolation switch-
es, fused disconnects, etc. Sullair provides a wiring
diagram for use by the installer.
An electrical check should be made to help assure
that the first start-up will be trouble-free.
Lethal shock hazard inside. Disconnect all power
at source, before opening or servicing.
1. Check incoming voltage. Be sure that the incom-
ing voltage is the same voltage that the com-
pressor was wired for.
2. Check starter and overload heater sizes.
3. Check all electrical connections for tightness.
4. "DRY RUN" the electrical controls by disconnect-
ing the three (3) motor leads from the starter.
Energize the control circuits by pushing the
" "(START) pad and check all protective
devices to be sure that they will de-energize the
starter coil when tripped.
5. Reconnect the three (3) motor leads and jog the
motor for a direction of rotation check, as
explained in Section 4.8.

4.8 MOTOR ROTATION DIRECTION CHECK

Motor rotation check must be made at compressor
start-up. Remove comperssor panel as needed to
view motor rotation.
After the electrical wiring has been done, it is nec-
essary to check the direction of the motor rotation.
Pull out the EMERGENCY STOP button and press
once, quickly and in succession, the "
(START) and "
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, discon-
nect the power to the starter and exchange any two
of the three power input leads, then re-check rota-
tion. A "Direction of Rotation" decal is located on the
motor to show proper motor/compressor rotation.
An alternative to this procedure is to set the
Supervisor II to display P1. Pull out the EMER-
GENCY STOP button and press once, quickly and
in succession, the "
(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 pres-
sure 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.
Section 4
INSTALLATION
" (STOP) pads. This action
" (START) and "
"
"
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