Mounting Of Compressor; Ventilation And Cooling; Ventilation Requirements; Fluid Level Check - Sullair LS-12 Operators Manual And Parts Lists

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. 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 flowing in and out
to the compressor to keep the operating tempera-
ture stable. The minimum distance that the com-
pressor should be from surrounding walls is three
(3) feet (0.9 m). To prevent excessive ambient tem-
perature 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 --- WATER FLOW REQUIREMENTS
WATER TEMP.
AT 70_F (21_C)
in GPM (LPM)
40HP
6 (22.7)
7 (26.5)
50HP
9 (34.1)
60HP
75HP
10.5 (39.75)
100HP 11.75 (44.5)
(water pressure should be between
25 and 75 psig (1.7 and 5.2 bar).
The pr oper water flow as indic a ted in
be maintained at all times. These figures apply to a
compressor running at full load with an aftercooler.
For cooler water or a partially loaded compressor,
slightly less water is required. However, for hotter
water the flow requirements are significantly great-
er.
TABEL 2--- VENTILATION REQUIREMENTS
Cooling Type
Motor HP
(I)
Fan Air CFM
Heat Rejection BTU/Hour
(I) Applies to compressors with canopy only (vent fan).
WATER FLOW
AT 80_F (27_C)
in GPM (LPM)
8 (30.3)
10.5 (39.75)
11.5 (44.5)
14 (53)
15.75 (59.6)
Table 1
Air---cooled w/Aftercooler
40 50 60
6,000 6,000 7,500
123,250 153,360 183,800
Ta bl e 2 shows the ventil ation r equir ements nec es -
sary to keep the compressor running at a normal
operating temperature. The fan air requirement is
the volume of air which must flow through the com-
pressor 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 office for assistance in utilizing this heat.
DO NOT install a water---cooled or an air---cooled/
aftercooled compressor where it will be exposed to
temperatures less than 32_F(0_C).

4.3 SERVICE AIR PIPING

Service air piping should be installed as shown in
F i g u r e 4 --- 1 . A s h u t --- o f f v a l v e s h o u l d b e i n s t a l l e d 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.
"The Plastic Pipe Institute recommends against the
use of thermoplastic pipe to transport compressed
air or other compressed gases in exposed above
ground locations, e.g. in exposed plant piping." (I)
Sullube 32 should not be used with PVC piping sys-
tems. It may affect the bond at cemented joints. Cer-
tain other plastic materials may also be affected.
(I) Plastic Pipe Institute, Recommendation B,
Adopted January 19, 1972.

4.4 COUPLING ALIGNMENT CHECK

No coupling alignment is required.

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
must
at the normal reading.

4.6 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 OSHA, National Electrical Code, and any other
75 100
7,500 7,500 1,440
229,800 302,410 11,200
Section 4
INSTALLATION
WARNING
!
Water---cooled
40 50 60
1,440 2,845 2,845
13,300 15,800 19,800
75 100
2,845
22,410
15