Trane Optimus RTHD, Инструкция по установке, эксплуатации и обслуживанию

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Maintenance
RTHD-SVX01K-EN 71
Oil Sump Level Check
Running the chiller at minimum load is the best for the
quickest return of oil to the separator and sump. The
machine still needs to sit for approximately 30 minutes
before the level is taken. At minimum load, the discharge
superheat should be highest. The more heat in the oil as it
lays in the sump, the more refrigerant will boil off in the
sump and leave more concentrated oil.
The oil level in the oil sump can be measured to give an
indication of the system oil charge. Follow the procedures
below to measure the level.
1. Run the unit fully unloaded for approximately 20
minutes.
2. Cycle the compressor off line.
3. Attach standard refrigeration hose with a sight tube in
the middle to the oil sump drain valve and the
condenser service valve at the top of the condenser.
Using high pressure rated clear hose with appropriate
fittings can help speed up the process.
Note: A shutoff valve at one end of the hose is
recommended to facilitate hose drainage after
oil level check is completed.
4. After the unit is off line for 30 minutes, move the
sightglass along the side of the oil sump.
5. The level should be between 2” and 5” from the
bottom of the oil sump.
Note: If oil levels are not between 2” and 5”, contact Trane
service.
NOTICE
Equipment Damage!
Operating compressors with service valves open will
result in severe oil loss and equipment damage.
Never operate the compressor with the sight glass
service valves opened. Close the valves after checking
the oil level.
Figure 40. Determining oil level in sump
6” Sight tube
Std Refrigeration Hose