Section 2
INSTALLATION
6
Figure 2---1 Service Air Piping (Typical Installation)
2.6 FLUID PIPING (AIR---COOLED ONLY)
To allow depressurization of the cooling package
and connecting piping between the compressor
and the cooling package upon shutdown of the
compressor, a !@2”(13 mm) depressurization line
must be installed between the top of the fluid cooler
and the sump tank connection which is located on
the fluid supply and return line connection bracket.
This line must be maintained at a higher level than
the supply and return piping for the fluid cooler.
The supply and return piping for the fluid cooler
must be adequately sized to prevent excessive
pressure drop. The total pressure drop in the sup-
ply and return piping and associated fittings and
valves shall not exceed 10 PSIG (0.7 bar). If the
pressure drop is in excess of 10 PSIG (0.7 bar), a
pump should be installed. Consult the Sullair Ser-
vice Department for recommendations.
It is recommended that shutoff valves be installed
in the supply and return piping to facilitate com-
pressor component’s maintenance.
Because of the variability in installations, the fluid
necessary to fill the supply and return piping for the
fluid cooler is not part of the standard scope of sup-
ply for the compressor. The fluid necessary to fill
this piping may be ordered from the nearest Sullair
representative or the representative from whom the
compressor was purchased. To assist in determin-
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