Robinair 34134-2K Refrigerant Recovery, Recycle, Recharge Unit - Manual (Page 14)

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© 2000 Robinair, SPX Corporation
Maintenance
WARNING
Steps 1 – 5 are critical to avoid possible hazardous release of refrigerant!
1. Make sure both tank valves and manifold valves are open.
2. Make sure the service couplers are closed.
3. Turn control panel switch to RECOVER.
4. Monitor manifold gauges until pressure reads below zero.
5. Turn RECOVER/VACUUM switch to OFF.
6. Remove filter by unscrewing nuts located at each end of the filter. Dispose of
the old filter according to all local and state regulations.
7. Inspect the condition of the gaskets inside the copper tubes that are connected
to the filter. Install new filter and hand tighten.
8. Turn the control panel switch to VACUUM for 5 minutes.
9. Turn RECOVER/VACUUM switch to OFF.
NOTE: Following filter-drier replacement, the filter capacity must be reset.
REPLACING THE FILTER-DRIER
The filter-drier on this unit is designed to trap acid, and particulates and is formu-
lated to remove moisture from the refrigerant. Typically, you can recover up to
300 pounds of refrigerant between filter changes.
CAUTION!
For best results, use a Robinair filter-drier (part no.
34430). All performance tests and claims are based on using this
specially-blended filter-drier. Use of any other may affect performance
results.
Filter-Drier
INST 0757