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AGL_Ref_ST_ZO_E_Rev00
3.2 Compressor mounting parts
The compressors are designed to be mounted on vibration absorber grommets. The grommets
dampen the start-up surge of the compressor and minimise sound and vibration transmission to the
compressor base during operation. The metal sleeve inside is a guide designed to hold the grommet
in place. It is not designed as a load-bearing member, and application of excessive torque to the
bolts can crush the sleeve. Its inner diameter is approximately 8.5 mm to fit, eg, an M8 screw. The
mounting torque should be 13 ± 1 Nm. It is critically important that the grommet is not compressed.
See Emerson spare parts software for reference.
Standard mounting parts for ZO*AG
– Soft mountings
Standard mounting parts for ZOV*AG
– Soft mountings
Figure 12: Rubber mounting parts with sleeves
3.3 Shut-off valves and adaptors
CAUTION
Leaking system! System breakdown!
It is recommended to periodically re-
torque all pipe and fixing connections to the original settings after the system
has been put into operation.
Torque settings of system valves and adaptors with Rotalock connections might decrease
significantly after some time in operation. Recurring temperature changes, vibration and other
influencing parameters can lead to expansion and contraction of the metal material and a relaxation
of the gaskets. It is recommended to periodically retorque the Rotalock connections to the original
settings.
However, pipe plugs with sealant applied at the factory are not to be retorqued, as this would break
the seal and create a leak path in the cured sealant.
Figure 13: Shut-off valves and connection adapters
Rotalock shut-off valves are available for the suction as well as discharge sides.
Please refer to
Appendix 1
for proper tightening torques.
NOTE: More information about adaptors and shut-off valves can be found in the Emerson
spare parts software, available at
www.climate.emerson.com/en-gb/tools-resources
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