Trane RTAA-70 Installation & Maintenance Manual page 122

122
Maintenance
5. Remove the seven bolts on the oil filter cover. A pan may be necessary to
catch any oil that is released after the cover is loosened.
NOTE: Observe the placement of copper gasket under one bolt head.
6. Remove the cover and oil filter element.Install the new filter element.
7. Coat the new cover gasket with refrigerant oil.
8. Install the cover plate and cover plate gasket.
9. Install a new copper gasket under the same bolt head that had one at
time of removal. Replace all other bolts and tighten to 150 ft. lbs.
10. Energize the three solenoid valves on the compressor by jumpering the
proper terminals at the UCM.
11. Evacuate to 400 microns from the three ports in Step 2 and perform a
rise test.
12. De-energize the three solenoid valves.
13. Reconnect the Aeroquip coupling that was separated or open valve in
Step 3 or, on later chillers, backseat the oil supply line angle valve.
CAUTION
Equipment Damage!
The Aeroquip valve must be completely tightened to open the
valve. If the valve is not completely tightened, the valve may
remain closed, causing catastrophic damage to the compressor.
NOTE: Insure that this step is performed before Step 15, as this will insure
that the oil filter housing is full of oil before the compressor is started.
14. Backseat the suction and discharge service valves.
15. Remove the manifold gauge sets.
RTAA-SVX01A-EN