Mounting Parts; Brazing Procedure - Emerson Copeland Scroll ZH04K1P Manual

lubrication. For multiple compressor parallel configurations, the compressors must be positioned
completely vertically on a totally horizontal surface or rail.

3.1.4 Mounting parts

The compressors are designed to be mounted on vibration absorber grommets (part of the
standard delivery). The grommets dampen the start-up surge of the compressor and minimise
sound and vibration transmission to the compressor base during operation. The grommets are
supplied with the compressors. 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.
If the compressors are mounted in tandem or used in parallel, then the hard mountings (bolt
M9 5/16") are recommended. The mounting torque should be 27 ± 1 Nm. It is possible to deliver
these hard mounting parts as a kit, or on request to deliver the compressor with these parts
instead of the rubber grommets.
NOTE: For more information, please refer to Technical Information C7.11.2 "Scroll
Mounting Parts".
Mounting parts for single compressor applications:
ZH04K1P, ZH05K1P: 3 pieces per compressor
ZH06K1P to ZH19K1P, ZHI05K1P to ZHI23K1P: 4 pieces per compressor
Mounting parts for single compressor applications:
ZHI27K1P to ZHI46K1P: 4 pieces per compressor
Figure 4: Rubber mounting parts with sleeve and washer
3.2

Brazing procedure

IMPORTANT
Blockage! Compressor breakdown! Maintain a flow of oxygen-free
nitrogen through the system at very low pressure during brazing. Nitrogen
displaces the air and prevents the formation of copper oxides in the system.
If allowed to form, the copper oxide material can later be swept through the
system and block screens such as those protecting capillary tubes, thermal
expansion valves, and accumulator oil return holes.
Contamination or moisture! Bearing failure! Do not remove the plugs until
the compressor is set into the unit. This minimises any entry of contaminants
and moisture.
C6.2.26/1013-1116/E 9