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Optional Pumpout Compressor Oil Charge
Use oil conforming to Carrier specifications for reciprocating compressor usage. Oil
requirements are as follows:
ISO Viscosity........................................................68
Carrier Part Number............................. PP23BZ103
The total oil charge, 4.5 pints (2.6 L), consists of 3.5 pints (2.0 L) for the compressor and one
additional pint (0.6 L) for the oil separator.
Oil should be visible in one of the compressor sight glasses both during operation and at
shutdown. Always check the oil level before operating the compressor. Before adding or
changing oil, relieve the refrigerant pressure as follows:
1.
Attach a pressure gage to the gage port of either compressor service valve (Figure 37).
2.
Close the suction service valve and open the discharge line to the storage tank or the
machine.
3.
Operate the compressor until the crankcase pressure drops to 2 psig (13 kPa).
4.
Stop the compressor and isolate the system by closing the discharge service valve.
5.
Slowly remove the oil return line connection (Figure 37). Add oil as required.
6.
Replace the connection and reopen the compressor service valves.