Mounting Of Compressor Package - Sullair LS-20S Operator's Manual And Parts List

4.1 MOUNTING OF COMPRESSOR PACKAGE

The compressor package should be placed over a
surface or foundation that is capable of supporting
its weight, while remaining level and free of deflec-
tions which may affect the driveline mounts or the in-
board pipework.
It is recommended that the package frame be lev-
eled and secured to the foundation with adequate
anchorage, and that a good grade grouting be used
to insure full contact between the load bearing sur-
faces.
Do not twist frame.
The compressor/motor driveline is self--aligned by
the use of a rigid distance piece and supported by
flexible vibration isolation mounts. Poor leveling or
excessive deflections may adversely affect the op-
eration and longevity of these devices.
No piping loads should be transmitted to the air and
water connections provided with the package.
4.2 VENTILATION AND COOLING
For air--cooled compressors, select a location to
permit a sufficient unobstructed flow of air through
the compressor to keep the operating temperature
stable. The minimum distance that the compressor
should be from surrounding walls is three (3) feet
(0.91m). To prevent excessive ambient temperature
rise, it is imperative to provide adequate ventilation.
If ductwork is attached to cooler air discharge, the
high static fan option should be selected.
For water--cooled compressors, it is necessary to
check the cooling water supply. The water system
must be capable of supplying the following flows:
WATER TEMP.
_F/ _C
125HP/90KW
70/ 21
80/ 27
Water flow requirements are based on 80_F to
85_F (27_C to 29_C) water inlet temperature.
Recommended water pressure range is 25 to 75
psig (1.7 to 5.2 bar).
VENTILATION REQUIREMENTS
Cooling Type
Motor HP
Fan Air CFM (I)
Heat Rejection to ventilating air BTU/min.
Heat Rejection to water, BTU/min.
(I)
Applies to compressors with canopy only (vent fan).
DANGER
!
WATER FLOW
GPM/ LPM
150HP/110KW
18/ 68 22/ 83
25/ 95 30/ 114
NOTE
Air-cooled
125
16,400
6,081
The table below indicates the ventilation require-
ments necessary to keep the compressor running at
a normal operating temperature. The fan air require-
ment is the volume of air which must flow through
the compressor for proper ventilation. The specified
heat rejection requirement is the amount of heat that
is radiated by the compressor. This heat must be re-
moved to assure a normal operating temperature.
With air--cooled compressors it is possible to use
this heat for space heating, providing no additional
pressure drop is created across the fan. Consult a
Sullair representative for assistance in utilizing this
heat.
DO NOT install a water--cooled or an air--cooled/af-
tercooled compressor where it will be exposed to
temperature less than 32_F(0_C).
4.3 SERVICE AIR PIPING
Service air piping should be installed as shown in
F igur e 4 -- 1. A s hut -- off v alv e s hould be ins t alled t o
isolate the compressor from the service line if re-
quired. Also notice that the service line should be
equipped with water legs and condensate drains
throughout the system.
4.4 SHAFT COUPLING CHECK
The compressor unit and motor are rigidly con-
nected via a cast adaptor piece which maintains the
shaft coupling in proper alignment. It is recom-
mended that prior to initial startup, all coupling fas-
teners are checked for proper tensioning. Refer to
t he Coupling S er v ic e P r oc edur es
Maintenance section of this manual.
4.5 FLUID LEVEL CHECK
The air compressor is also supplied with the proper
amount of fluid. However, it is necessary to check
the fluid level at installation. The level is checked by
looking at the sight glass located near the sump. If
the sump is properly filled, the fluid level should be
visible in the sight glass.
4.6 MOTOR ROTATION CHECK
After the electrical installation has been done, it is
necessary to check the direction of motor rotation.
Pull out the EMERGENCY STOP button and press
once, quickly and in succession, the (START) "I"
and (STOP) "O" pads. This action will "bump start"
the motor for a very short time. When looking at the
motor rear end, the driveline should be rotating
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-
150
16,400
7,527
Section 4
INSTALLATION
inc luded in t he
Water-cooled
125 150
(I) (I)
2,845 2,845
1,340 1,340
6,081 7,527
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