Section 4
INSTALLATION
17
4.1 MOUNTING OF COMPRESSOR
A foundation or mounting capable of supporting the
weight of the compressor, and rigid enough to
maintain the compressor frame level and the com-
pressor in alignment is required. The compressor
frame must be leveled and secured with foundation
bolts, and full uniform contact must be maintained
between the frame and foundation. The compres-
sor unit and driver must be aligned after installation
as specified in the Operator's Manual. No piping
loads shall be transmitted to the compressor at the
external connections.
4.2 VENTILATION AND COOLING
For air-cooled compressors, select a location to
permit sufficient unobstructed air flow in and out of
the compressor cooling package to keep the oper-
ating temperature stable. The minimum distance
that the compressor should be from surrounding
walls is three (3) feet (91.4cm). To prevent exces-
sive ambient temperature rise, it is imperative to
provide adequate ventilation.
For water-cooled compressors, it is necessary to
check the cooling water supply. The water system
must be capable of supplying the following flows:
Table 1 below indicates the ventilation require-
ments necessary to keep the compressor running
at a normal operating temperature. The fan air
requirement is the volume of air which must blow
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 removed to assure a normal operating
temperature. With air-cooled compressors it is pos-
sible to use this heat for space heating, providing
excessive pressure drop is not created across the
fan. Consult a Sullair office for assistance in utiliz-
ing this heat.
DO NOT install a water-cooled or an air-
cooled/aftercooled compressor without adequate
freeze protection where it will be exposed to tem-
perature less than 32ºF(0ºC).
4.3 SERVICE AIR PIPING
Service air piping should be installed as shown in
Figure 4-1. A shut-off valve should be installed to
isolate the compressor from the service line if
required. Also notice that the service line should be
equipped with water legs and condensate drains
throughout the system.
4.4 COUPLING ALIGNMENT CHECK
In preparation for the factory test, the coupling sup-
plied with your compressor is properly aligned for
operation. However, due to shipping and handling,
it is necessary to recheck the coupling alignment.
Refer to Coupling Alignment procedure explained in
the Maintenance Section of this manual.
4.5 FLUID LEVEL CHECK
Your air compressor is also supplied with the prop-
er 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 on the
sump. If the sump is properly filled, the coolant level
should fill the sight glass.
4.6 ELECTRICAL PREPARATION
Interior electrical wiring is performed at the factory.
Any other wiring should be performed by a qualified
electrician and in full compliance with OSHA,
National Electrical code and/or any applicable
Federal, State and Local codes, standards and reg-
ulations concerning isolation switches, fuse discon-
TABLE 4-1 VENTILATION REQUIREMENTS (TYPICAL)
COOLING TYPE AIR-COOLED WATER-COOLED
Motor HP/KW: 100/75 125/93 150/112 200/150 250/187 100/75 125/93 150/112 200/150 250/187
Vent Fan Flow
CFM/M
3
/MIN (I): 13,000/368 14,500/411 14,500/411 19,000/538 19,000/538 2,370/67 2,370/67 2,370/67 2,370/67 2,370/67
Heat Rejection:
BTU/Hour 285,100 353,940 412,500 545,040 699,875 22,410 28,110 33,610 50,390 55,990
KCAL/Hour 71,848 89,196 103,954 137,355 176,375 5,648 7,084 8,470 12,700 14,110
(I) Applies to compressors with canopy only (vent fan).
WATER WATER FLOW (TYPICAL)
TEMP. (GPM/LPM)
ºF/ºC 100HP/ 125HP/ 150HP/ 200HP/ 250HP/
75KW 93KW 112KW 150KW 187KW
70/21 14/15.3 17.5/66 21/79.5 40/151 49/185
80/27 18.75/71 23.5/89 28/106 44/166 54/204
Water pressure should be between 25 and 75 psig (1.7 and 5.2 bar).
"The Plastic Pipe Institute recommends against
the use of thermoplastic pipe to transport com-
pressed air or other compressed gases in
exposed above ground locations, e.g. in
exposed plant piping." (I)
PVC piping should not be used with Sullube sys-
tems. It may affect the bond at cemented joints.
Certain other plastic materials may also be
affected.
(I) Plastic Pipe Institute, Recommendation B,
Adopted January 19, 1972.
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