Model H1301 Recovery and Recycling System
Installation, Operation and Maintenance Manual
Revision-L September, 2019
Page 86 of 105
VII. System Maintenance Procedures
O. Vapor Compressor Oil Renewal (continued)
14. Connect the nitrogen source to the AV-3 access valve and pressurize the compressor
housing to 200 psi. The access valve end of the connecting plumbing must contain a
valve core depressor.
15 Leak test the threads of the sight glass using leak detector fluid.
16. Remove the nitrogen source and depressurize the compressor housing by depressing
the valve core of the AV-3 access valve.
17. Connect the vacuum pump and vacuum gauge to the AV-3 access valve. Operate the
pump to gain a minimum vacuum indication of ā28ā Hg then remove the vacuum pump
from the access valve and immediately complete the following final oil fill.
18. Place approximately 18 ounces of compressor refrigeration oil 3GS, Grade-150 into a
container.
19. Place the open cut end of the modified hose so that it is under the surface of the oil.
20. Connect the fitting service end of the modified hose containing the core depressor
onto the AV-3 access valve. The vacuum in the compressor housing will immediately
begin to draw oil from the container through the hose.
21. View the compressor oil sight glass and disconnect the hose from the AV-3 access
valve when the oil level is from 1/4 to 1/2 full on the sight glass.
CAUTION: Do Not Overfill the compressor with oil.
22. Reinstall the valve cap back to the AV-3 access valve.
23. Reinstall the hood and connect the hood fan electrical connector. Reconnect the main
electrical power back to the machine.
Alternately:
An Oil Fill Syringe is available from
Neutronics: part number 6-02-6001-51-0.
The Syringe connects directly to the AV-3
access valve. The Syringe holds the oil
and fills through a manual on/off valve:
eliminating the need for filling through a
refrigeration service hose.
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