Oil Level Check-Leak Condition

If external oil leakage is evident, check compressor oil level using the following procedures:

1. Discharge system as outlined, then measure amount of oil collected in discharge container.

CAUTION: If more than 1/2 ounce of oil is collected when discharging system, an equal amount of new refrigeration oil must be added to the system.

2. On models with A-6 axial compressor, proceed as follows:
a. Remove compressor and accumulator, drain oil from components into a suitable container and measure amount of oil recovered.
b. If more than 4 ounces are recovered, add the same amount of new refrigeration oil to system.
c. If less than 6 ounces are recovered, add 6 ounces.
3. On models with R-4 or HR-6 compressors, proceed as follows:
a. Remove accumulator, drain oil remaining in accumulator into a suitable container and measure amount of oil recovered.

NOTE: These compressors do not have an oil sump, therefore it is unnecessary to drain this compressor to check system oil level.

b. If the amount of oil recovered is 3 ounces or more, add the same amount of new refrigeration oil to system.
c. If less than 3 ounces of oil are recovered, add 3 ounces of new refrigeration oil to system.
4. Add refrigeration oil, as needed, to compressor sump or accumulator. Reinstall components, then evacuate and recharge system.