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| Refrigerant
oil in the auto A/C system |
Q:
How much refrigerant oil should I add to the A/C system when recharging?
A: As outlined above,
there may not be a requirement to add oil to the A/C system every time it's
recharged. However, if the system requires oil, you should only be adding
the amount of oil that's been lost. With leaks or 'normal' loss of refrigerant
oil through the a/c compressor shaft seals it may be difficult to determine
exactly how much to add. Therefore, you should follow the general 'rules'.
Adding 1-2 ounces for loss through small leaks or through the compressor
shaft seal is acceptable. When replacing components, there are additional
guidelines that should be followed. They are; A/C Condenser - 1 oz.; Accumulator
or receiver drier - 1 oz.; Evaporator - 3 oz.; Compressor - Generally, the
amount removed plus one ounce (1oz.). For more detailed refrigerant oil
specifications, follow the service manual for your specific application. |
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only 'perpetual' A/C service manual that is constantly updated! Best of all,
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and discussion board at the COOL ZONE. You'll get all the right answers
to your questions about troubleshooting and diagnosing auto A/C systems. |
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This
was probably one of the best books on recharging air conditioning that I
have seen...
