Copeland ZB15, ZB19, ZF09, ZS21, ZB21 Replacement Guidelines
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Scroll Compressors
Replacement Guidelines
1 Compressor Replacement...................................................................................................... 2
2 Scroll Compressor Replacement Procedure.........................................................................2
Torque Settings.................................................................................................................................................5
Copeland Replacement Part No’s..................................................................................... ................................5
Assembly Procedure.........................................................................................................................................6
Compressor Mounts .......................................................................... ................................................................6
Approved Oils................................................................................................................ ....................................6
Service Refill Quantity ... .... ..... ..... ......... .... ..... .... .......... .... ..... .... ..... ......... ..... .... ..... ......... .... ................................6
Lubricant Handling................................................................................................................................... .........7
3 System Evacuation and Charging Procedure ....................................................................... 7
Qualified Refrigerants........................................................................................... .... ..... ............. .......................7
4 Performance / Visual Checks..................................................................................................7
R404A Application Envelopes................................ ....................................................................................... ....8
C05.2.4/1007/E 1
1 Compressor Replacement
The following is intended to assist the service engineer to ensure the correct method for fitting of a new scroll
compressor where replacement is necessary. In the event that a compressor ne eds replacement it is vital to
diagnose and rectify the system fault which caused the problem in order to avoid the need for further
replacements. It is important to ensure that when a scroll compressor replacement is required, certain
procedures are carried out in the same manner as when first built and installed by the original manufacturer.
The main areas to note are correct torque values for service valves and the use of correct rubber mounts for the
application. For ease and clarity the following procedure has been provided as a pictorial sequence (Our
thanks to Space Engineering Ltd, in the UK who provided the photo sequence).
In the case of a motor burn, the majority of contaminated oil will be removed with the compressor. The rest of
the oil is cleaned through the use of suction and liquid line filter driers. A 100% activated alumina suction filter
drier is recommended but must be removed after 72 hours. It is highly recommended that the suction
accumulator be replaced if the system contains one. This is because the accumulator oil return orifice or screen
may be plugged with debris or may become plugged shortly after a compressor failure. This will result in
starvation of oil to the replacement compressor and a second failure.
2 Scroll Compressor Replacement Procedure
1
Begin by removing any
waste or rubbish from the
2
… clean away any dirt or
debris.
3
Remove all valve caps…
plant housin g …
4
… inspect for cracks or
damage…
5
… and store saf el y.
6
Select compressor, fit
service gauges, check
pressures.
2 C05.2.4/1007/E
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