Mounting Of Compressor; Ventilation And Cooling; Service Air Piping; Coupling Alignment Check - Sullair 10B Series Operator's Manual

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 (.91m) and preferable six (6) feet (1.83m) or
more from the fan air discharge end of the com-
pressor.
For water---cooled compressors, it is necessary to
check the cooling water supply. The proper water
flow should be as follows:
WATER TEMP .
( F)
_
70
80
Ta ble One below indicates the ventila tion require -
ments necessary to keep the compressor running
at a normal operating temperature. The fan air re-
quirement is the volume of air which must flow
through the compressor for proper ventilation. The
specified heat rejection requirement is the amount
TABLE ONE -- VENTILATION REQUIREMENTS
MOTOR HP
FAN AIR CFM
HEAT REJECTION BTU/HR.
MOTOR HP
FAN AIR CFM
HEAT REJECTION BTU/HR.
MOTOR HP
FAN AIR CFM
HEAT REJECTION BTU/HR.
WATER FLOW
(GPM)
25HP 30HP 40HP
3.75 4.50 5.75
5.00 6.00 7.50
25
2000
59,400
AIR ---COOLED W/AFTERCOOLER
25
2000
68,400
25
720
8400
of heat that is radiated by the compressor. This heat
must be removed to assure a normal operating
temperature. 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
temperature less than 32_F(0_C).

4.3 SERVICE AIR PIPING

Service air piping should be installed with a shut ---
off valve installed to isolate the compressor from
the service line if required. The service line should
be equipped with water legs and condensate
drains throughout the system. Both air---cooled
and water---cooled aftercoolers are available as
standard equipment.

4.4 COUPLING ALIGNMENT CHECK

With the compressor unit directly flange---mounted
to its drive, the coupling supplied with the compres-
sor is always properly aligned for operation. How-
ever, we recommend that you re---check the cou-
pling gap before start ---up or when handling the
unit. A #@ 3 2 to !@ 8 " axial clearance should be main-
tained for the coupling gap.

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 on the sump. If
the sump is properly filled, the fluid level should not
fall below the center of the sight glass when the
compressor is shutdown.
AIR ---COOLED
30 40
2000 2600
71,400 91,800
30 40
2000 2600
82,200 106,200
WATER ---COOLED
30 40
720 720
10,000 13,000
Section 4
INSTALLATION
17