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NOTES
of Rotation" decal is located on the coupling guard
between the motor and compressor to show proper
motor/compressor rotation.
Finally, verify all directions of rotations on all auxiliary
motors per their directional decals.
4.7
FLUID PIPING (REMOTE AIR-
COOLED OPTION ONLY)
To allow de-pressurization of the cooling package
and connecting piping between the compressor and
the
cooling
package
compressor, a 1/2" (13 mm) de-pressurization line
must be installed between the top of the fluid cooler
and the sump tank connection which is located on
the fluid supply and return line connection bracket.
This line must be maintained at a higher level than
the supply and return piping for the fluid cooler. The
supply and return piping for the fluid cooler must be
adequately sized to prevent excessive pressure
drop. The total pressure drop in the supply and return
piping and associated fittings and valves shall not
exceed 10 psig (0.7 bar)at the worst case operating
condition (usually lowest ambient). If the pressure
drop is in excess of 10 psig (0.7 bar), a pump should
be installed. Consult the Sullair Service Department
for recommendations.
It is recommended that shutoff valves be installed in
the supply and return piping to facilitate compressor
component's maintenance.
Because of the variability in installations, the fluid
necessary to fill the supply and return piping for the
fluid cooler is not part of the standard scope of supply
for the compressor. The fluid necessary to fill this
piping may be ordered from the nearest Sullair
representative or the representative from whom the
compressor was purchased. To assist in determining
the amount of fluid necessary to fill the piping, the
following chart may be used.
62
upon
shutdown
of
the
PIPE SIZE
2
2 1/2
3
4
6
4.8
ELECTRICAL PREPARATION
Interior electrical wiring is performed at the factory.
Required customer wiring is minimal, but should be
done by a qualified electrician in compliance with
applicable local electrical codes concerning isolation
switches, fuse disconnects, etc. Sullair provides a
wiring diagram for use by the installer.
A few electrical checks should be made to help
assure that the first start-up will be trouble free.
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. Verify that control
transformer primary is wired for correct line
voltage.
2. Check starter and overload heater sizes (see
Electrical Controls Section in Parts Manual).
3. Check all electrical connections for tight-
ness.
GALLONS/LITERS OF
FLUID PIPE SIZE PER 12
INCHES/304.8MM OF
PIPE
.1635/.62
.2555/.97
.368/1.39
.6542/2.48
1.4719/5.57
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