Accumulator HVAC

The compressor system requires 240 ml (8 fl. oz.) of PAG refrigerant oil.
New oil must be added to the system when components are replaced, as follows:

- Compressor - Remove the compressor and drain the oil. Measure the oil removed. Drain the oil from the new compressor. If more than 30 ml (1 fl. oz.) is drained from the compressor being replaced, install that amount of clean oil back into the new compressor. If less than 30 ml (1 fl. oz.) is drained from the old compressor, add 60 ml (2 fl. oz.) of clean oil to the new compressor.
- Evaporator - Add 90 ml (3 fl. oz.).
- Condenser - Add 30 ml (1 fl. oz.).
- Accumulator - Add 105 ml (3.5 fl. oz.).

The accumulator should only be replaced when a physical perforation to the shell is found resulting in a leak, the O-ring seat is damaged, or the inlet/outlet line fitting threads are damaged. With signs of extensive oil leakage:

- Remove the accumulator. Drain, measure and record quantity of oil in accumulator.
- If amount of oil drained is less than 90 ml (3 oz.), add 90 ml (3 oz) of new oil to the system.
- If amount of oil drained is more than 90 ml (3 oz), add same amount of new oil as drained.