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M-AP-001-EN Rev. Q
20.4 Mounting Base
The compressor must be mounted on a rigid surface of sufficient structural integrity to support the
weight of the compressor and valves (refer to "Figure 16-8 Center of Gravity Capacitor Side View
(Excluding TTH/TGH Compressors)", "Figure 16-9 Center of Gravity Top View (Excluding TTH/TGH
Compressors)", "Figure 16-10 TTH/TGH Center of Gravity Capacitor Side View", "Figure 16-11 TTH/
TGH Center of Gravity Top View", and "Table 16-2 Center of Gravity X-Y Coordinates"). A mounting kit
is available to isolate the compressor from the supporting structure and to minimize vibration from
other rotating equipment. The compressor mounting rails should be level ± 3/16” (5mm) in the lateral
and longitudinal planes.
NOTE
If isolation pads are used at the four (4) mounting base points, the overall height of the compressor will change. Be sure to
measure accordingly based on the insulator used.
1. If isolation pads are used, install four (4) pads in accordance with the footprint dimensions
given in "Figure 20-2 Mounting Base (TTS/TGS/TTH/TGH Series)".
2. Mount the compressor onto the isolation pads. Ensure the compressor mounting rails are
properly isolated from the base frame once the attaching hardware is secured; for example,
the screw should not extend from the compressor mounting rails to the base frame (refer
to "Figure 20-3 Incorrect Compressor Mounting Pad Installation" and "Figure 20-4 Correct
Compressor Mounting Pad Installation").
3. Check that the compressor mounting rails are level ± 5mm (3/16”) in the lateral and
longitudinal planes.
Figure 20-2 Mounting Base (TTS/TGS/TTH/TGH Series)
Figure 20-3 Incorrect Compressor Mounting Pad Installation
484.3
300.0
Spring
Washer
Screw
Compressor
Mounting Rail
Flat Washer
Nut
Rubber Mount
Base Frame
Screw too long
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