Section 4
INSTALLATION
21
4.1 MOUNTING OF COMPRESSOR
A foundation or mounting capable of supporting the
weightofthe compressor,and rigidenough to main-
tainthecompressorframelevelandthecompressor
in alignment is required. The compressor frame
must be leveled and secured with foundation bolts,
and full uniform contact must be maintained be-
tween the frame and foundation. No piping loads
shall be transmitted to the compressor at the exter-
nal 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 (1m).Topreventexcessiveambienttemper-
ature rise, it is imperative to provide adequate ven-
tilation.
For water--cooled compressors, it is necessary to
check the cooling water supply. The water system
must be capable of supplying the flows shown in
Table I -- Water Supply R equir ements ( Water --
c ooled) , and mus t be maintained at all t imes . T hes e
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 greater.
Table 2 -- Ventilation Requir ements indic ates t he
ventilation requirements necessary to keep the
compressor running at anormal operating tempera-
ture. The fan air requirement is the volume of air
which must flow through the compressor for proper
ventilation. Thespecifiedheatrejectionrequirement
is the amount of heat that is radiated by the com-
pressor.Thisheatmustberemoved toassureanor-
mal operating temperature. With air--cooled com-
pressors 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 anair--cooled/af-
tercooled compressor where it will be exposed to
temperatures less than 32_F(0_C).
4.3 SERVICE AIR PIPING
Ser v ic e a ir piping s hould b e ins talled a s s hown in
F igur e 4 -- 1. A s hut -- off v alv e s hould be ins talled 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.
WARNING
!
“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 should not be used with PVC piping sys-
tems. Itmayaffect thebond atcemented joints. Cer-
tain other plastic materials may also be affected.
(I) Plastic Pipe Institute, Recommendation B,
Adopted January 19, 1972.
WATER TEMP. WATER FLOW
0_F(_ C) GPM (LITERS)
50HP (37KW) 60HP (45KW) 75HP (55KW)
70 (21) 7.0 (26.5) 9.0 (31.6) 10.5 (39.7)
80 (26.6) 10.5 (35.7) 11.5 (41.6) 14.0 (51.6)
(I)
Water pressure should be between 25 and 75 psig (1.7 and 5.2 bar).
100 HP (75KW)
14.0 (52.5)
18.8 (70.9)
TABLE 1--WATER SUPPLY REQUIREMENTS (WATER--COOLED)
(I)
Cooling Type Air--Cooled w/Aftercooler Water--Cooled
Motor HP/KW 50/37
Fan A ir CFM/
6,000/
Heat Rejection
166,000
60/45 75/55
7,500/ 7,500/
183,800 229,800
50/37
1,440/
13,300
60/45 75/55
2,845/ 2,845/
15,800 19,800
(I)
(I)
Applies to compressors with canopy only (vent fan).
M
3
/Hr
100/75
7,500/
301,000
BTU/Hour
100/75
2,845/
26,000
KCAL/HR 42,000 46,300 57,900 3,350 4,000 5,00075,800 6,550
10,200 12,700 12,700
2,450 4,850 4,85014,000
4,850
Heat Rejection
153,000 168,000 210,000
BTU/Hour
275,000
KCAL/HR 38,600 42,300 53,000 69,300
Cooling Water/
Ventilating Air/
TABLE 2-- VENTILATION REQUIREMENTS
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