Trane R Series Installation, Operation And Maintenance Manual page 144

Maintenance
Figure 45. Oil system schematic
Oil system consists of the following components:
• Compressor
• Oil separator
• Discharge line with service valve
• Oil line from separator to compressor
• Oil line drain (lowest point in system)
• Oil cooler - optional
• Oil temperature sensor
• Oil line shut off valve with flare service connection
• Oil filter (internal to compressor) with flare fitting
service connection and schrader valve
• Oil flow control valve (internal to the compressor after
the filter)
• Oil return line from evaporator with shut off valve and
strainer
Refer to Table 1, p. 12 throughTable 10, p. 21
standard oil charge for each circuit.
Note: Recommendation: check the oil level in the sump
using a sight glass or a manometer, attached to
charging hoses.
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RTAC-SVX01J-EN