Oil Charge

Current compressor systems require 270 ml (9 fl. oz.) of poly-alkylene glycol (PAG) refrigerant oil.

PAG refrigerant oil must he added to the system when components are replaced, as follows:
a. All Compressors (drain and measure the oil).
1. Drain oil out both the suction and discharge ports of the replacement as well as the old compressor.
2. Remove compressor crankcase drain bolt and drain oil from compressor crankcase.
^ If less than 30 ml (1 fl. oz.) is drained - add 60 ml (2 fl. oz.) to the new compressor.
^ If more than 30 ml (1 fl. oz.) is drained - add same amount that was drained to the new compressor.
3. Install compressor crankcase drain bolt. Tighten compressor crankcase bolt 20 Nm (15 lbs. ft.).
b. Receiver Dehydrator.
^ Add 105 ml (3.5 fl. oz.) to receiver dehydrator.
c. Evaporator.
^ Add 90 ml (3 fl. oz.) oil.
d. Condenser.
^ Add 30 ml (1 fl. oz.) oil.
e. Refrigerant oil loss due to a large leak:
^ If the refrigerant charge is abruptly lost due to a large refrigerant leak, approximately 90 ml (3 fl. oz.) of refrigerant oil will be carried out of the system with the refrigerant. Any failure that causes an abrupt refrigerant discharge will experience this oil loss. Failures that allow the refrigerant to seep or bleed off over time do not experience this oil loss.
^ Upon replacement of a component which caused a large refrigerant leak, add 90 ml (3 fl. oz.) of new PAG refrigerant oil plus:
^ The required amount of oil for the particular component (as outlined above).
^ Add the oil directly to the replaced component if possible. If the oil cannot easily be added to the replaced part, add the oil to the receiver dehydrator.