Trane Technologies CenTraVac CVHE - Reassembly of Waterboxes; Torque Requirements and Waterbox Weights

96
CVHE-SVX005B-EN
Figure 62. Waterbox rigging and lifting—condenser
and evaporator connections
Reassembly
Once service is complete, the waterbox should be
reinstalled on the shell following all previous
procedures in reverse. Use new O-rings or gaskets on
all joints after thoroughly cleaning each joint.
IImmppoorrttaanntt:: Torque waterbox screws as specified in
“Torque Requirements and Waterbox
Weights,” p. 96.
Torque Requirements and Waterbox
Weights
NNoottee:: These chillers are assembled with SAE fasteners.
Table 23. CenTraVac chiller screw torques — SAE
Screw Size
Torque — Gasket type O-ring Torque — Flat
in ft·lb N·m ft·lb N·m
3/8
25 33.9 12–18 16.3–24.4
1/2
70 94.9 33–50 44.7–67.8
5/8
150 203.4 70–90 94.9–122.0
3/4
250 339.0 105–155 142.4–210.2
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