Copeland ZB15, ZB19, ZF09, ZS21, ZB21 Replacement Guidelines

Scroll Compressors

<![if ! IE]>

<![endif]>Guidelines Replacement

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 needs 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			2			3
	Begin by removing any			… clean away any dirt or				Remove all valve caps…
	waste or rubbish from the			debris.
	plant housing…

4			5			6
	… inspect for cracks or			… and store safely.				Select compressor, fit
	damage…							service gauges, check
								pressures.

2	C05.2.4/1007/E