ZEST BOLT Service Manual

AIR CONDITIONING 36 11.14 FLUSHING THE A/C SYSTEM FOR CONTAMINATION OF LUBRICATING OIL REMOVAL Some oil is lost whenever air conditioning system components are replaced. Where the system has been ruptured, contaminated, or a compressor has to be removed and reinstalled or replaced, the system should be checked for contamination and, if so, the entire system must be flushed. Currently the only method recommended when flushing is with refrigerant R134a. CAUTION: A Refrigerant Recovery Unit (RRU) should be used to capture the R134a used for flushing. The R134a, must be reclaimed via the RRU into a separate bottle. Use only a dedicated R134a RRU. IMPORTANT: The complete air conditioning system must contain 120 ± 10 cc of factory installed refrigerant oil. NOTE: A new compressor will contain 120cc of factory installed lubricating oil. 1. Flush individual components. 2. Self-made flushing will be required as A/C system component fittings all differ in size, shape and thread size. 3. Invert decanting cylinder to use refrigerant in liquid form. 4. Reverse flush components. 5. Do not flush through a compressor otherwise possible internal damage could occur. 6. Recover / recycle flushing refrigerant, the recovery device will remove contaminants through a filtration system.