Compressor Rebuilding

OUR ENGINEERING DEPARTMENT REBUILD AND RECONDITION COMPRESSORS
Carrier Thermoking York Denso Zexel Calsonic Sanden Delphi	Tama Tecumseh Seiko Seiki Halla Diesel Kiki GM Mitsubishi Nihon Radiator	Shaft seal replacement Complete overhaul Complete rebuilding Clutch overhaul Bench testing All brands No job too big or too small
Years of experience in all makes and models.
HANDY HINTS Ensure there is enough oil in the compressor Give the compressor a few turns by hand before fitting

Technical Section

WHEN FITTING A REPLACEMENT COMPRESSOR

We are getting back compressors which are seized due to lack of oil. It is YOU the technician who must ensure that there is enough oil in the compressor to start with and that it is getting sufficient oil return. There is no warranty issue when a compressor has seized due to lack of oil. It is not the fault of the compressor.

There are a few points to remember when fitting a replacement compressor.

1. Sufficient oil is in the compressor and the system for the size of the system. A simple rule of thumb about how much oil is required is 20% of the refrigerant charge weight in grams and call that millilitres of oil.
   • E.g. 20% of 800 grams = 160 mls of oil . This is typical only of an auto a/c system.
   • Many compressors today do not come with any oil and oil must be fitted. Others come with a minimal amount of oil and extra oil must be added. You really must know how much oil is in the new compressor before fitting it. If it is not labeled on the compressor then you must drain it measuring the quantity. If you do not know this quantity you should not be fitting the compressor.
2. The correct type of recommended oil is fitted for the refrigerant and temperature.
3. Ensure the system is thoroughly flushed.
4. That any other faults in the system are rectified before running a new compressor.

Never assume that just fitting a replacement compressor will solve the previous compressor's problem and never assume the compressor has enough oil or the right type of oil. Compressors don't fail in brand new systems due to lack of oil. The designers of the systems have done their maths and the compressors work perfectly for years.

In a refrigeration system, where temperatures are a lot lower, a different grade of oil might have to be used for proper oil return and an oil separator might have to be fitted.

Automotive a/c compressors are designed and warranted for automotive a/c use only. Often these pumps will work successfully in a refrigeration system providing there is sufficient oil return and correct superheat is achieved etc. etc. but please remember they were not designed for it and manufacturers will not warrant a failed auto a/c compressor in a refrigeration system, period. Even more so if it is seized.

We supply important information with every compressor sold - both new and rebuilt - which you should read before fitting because we really don't want to see a perfectly sound operating piece of expensive equipment destroyed shortly after installation.

Eftpos and major credit cards accepted