Coupling Alignment Check - Sullair 3000P User Manual

SECTION 4
4.4 COUPLING ALIGNMENT
CHECK
No coupling alignment is required.
4.5 FLUID LEVEL CHECK
The air compressor is shipped with the proper
amount of fluid installed. However, it is necessary to
check the fluid level at the time of installation and
during continued operation of the compressor. The
fluid level is to be checked when the compressor is in
the SHUT DOWN MODE (fluid level may not be
visible when operating), and by looking at the sight
glass on the separator/sump tank. To be able to see
the fluid level it may be necessary to start the
machine and build the separator/sump tank pressure
up to 10/20 psi and then shut down. If no fluid level is
seen in the sight glass add fluid to the center of the
glass. Do not overfill in any case. When a complete
fluid change is performed, fill the separator/sump
tank to the maximum allowable fluid level, which is
center of the sight glass.
4.6 ELECTRICAL PREPARATION
Interior electrical wiring is performed at the factory.
Required customer wiring should be done by a
qualified electrician in compliance with OSHA,
National Electric Code and/or any applicable local
electrical code concerning isolation switches, 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. The compressor and drive should be
properly grounded/earthed in accordance with Local
and National Code requirements.
Installation of this compressor must be in accordance
with recognized electrical codes and any local Health
and Safety Codes.
Feeder cables should be sized by the customer/
electrical contractor to ensure that the circuit is
3000P-4500 USER MANUAL
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. Cable
sizes may vary considerably so the mains terminals
will accept up to 50 mm2 (1 awg) (37/4 Sk & 50/60 H)
and up to 90 mm2 (3/0 awg) (55/75 k & 75/100 H)
cable.
Feeder cable connections to incoming terminals L1-
L2-L3 should be tight and clean.
The applied voltage must be compatible with the
motor and compressor data plate ratings.
A starter hole is provided for incoming power
connection. If it is necessary to make a hole in the
control box in a different location, care should be
taken to not allow metal shavings to enter the starter
and other electrical components within the box. If
another hole is used, the original hole must be
blocked off:
DANGER Lethal shock hazard inside. Disconnect all
power at source before opening or servicing.
1. Check incoming voltage. Be sure that the
incoming voltage is the same voltage that the
compressor was wired for.
2. Check motor starter and overload heater
sizes.
3. Check all electrical connections for tight-
ness.
4. "DRY RUN" the electrical controls by discon-
necting the three (3) motor leads from the
starter. Energize the control circuits by push-
ing 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 Motor Rotation Direction Check
on page 58.
57