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1. | Connect a R-134a refrigerant recovery/recycling/charging station (A) to the high-pressure service port (B) and the low-pressure service port (C), as shown, following the equipment manufacturer¢s instructions.
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2. | Open high pressure valve to charge the system to the specified capacity, then close the supply valve, and remove the charging system couplers.
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3. | Check the system for leaks using a R-134a refrigerant leak detector with an accuracy of 14 g (0.5 oz) per year or better. |
4. | If you find leaks that require the system to be opened (to repair or replace hoses, fittings, etc.), recover the system. |
5. | After checking and repairing leaks, the system must be evacuated. |