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INSTALLATION
SECTION 3
DIMENSIONS
MAXIMUM WORKING PRESSURE
MODEL
AC-65
AC-105 & AC-125
HOSE
FH-1
FH-1-1/2
PART NO.
83-0735
83-0736
A
12"
16"
B
1" NPT
1-1/2" NPT
70
O
F
525 PSIG
450 PSIG
300
O
F
460 PSIG
395 PSIG
400
O
F
435 PSIG
370 PSIG
WEIGHT
2.0 LBS
3.0 LBS
FIGURE 3A FLEXIBLE HOSE
FIGURE 3B RECOMMENDED INSTALLATION
3.3 FLEXIBLE HOSE INSTALLATION
IMPORTANT
A FLEXIBLE HOSE MUST BE INSTALLED BETWEEN
THE COMPRESSOR AND AFTERCOOLER TO
VALIDATE THE WARRANTY ON THE AFTERCOOLER.
The flexible hose must be installed perpendicular to the direction
of vibration from the compressor.
If a flexible hose was not ordered with the aftercooler, one can
be ordered from your Van Air distributor. Figure 3A lists the
hose required for each aftercooler model.
3.4 PIPING INSTALLATION
CAUTION
ALL PIPING MUST BE ADEQUATELY SUPPORTED AND
ISOLATED FROM VIBRATION. EXCESSIVE STRESS OR
VIBRATION IN THE PIPING WILL CAUSE DAMAGE TO
THE AFTERCOOLER CORE.
TO ENSURE PROPER OPERATION, MAKE SURE THAT
THE INLET AND OUTLET PIPING ARE CORRECTLY
CONNECTED TO THE UNIT. REFERENCE FIGURE 2.2.
If the aftercooler is to be installed in an existing piping system,
clean the piping to remove accumulated dirt, pipe scale, oil, and
other contaminants before installing the unit.
A properly sized pressure relief valve should be installed after
the compressor and before any block valves. The relief valve
should be installed in compliance with all applicable federal,
state, and local codes.
To isolate the aftercooler for maintenance, install bypass piping
around the aftercooler and separator (if installed). Reference
Figure 3B.
Connect the inlet piping to the inlet of the aftercooler, reference
Section 2.2 for location. Make sure that the flexible hose is
properly installed before the aftercooler inlet. Provide supports
wherever necessary to prevent stress on the aftercooler.
Supports should be installed close to the inlet and outlet
manifolds. Use either overhead or stiff-leg type supports.
