Oil Level; Oil Fill, Removal And Capacity; Compressor Oil Capacity; Oil Testing - Trane CGAM Installation & Operation Manual

Maintenance
Table 64. Compressor fault indicators on protection module (CSHN compressors only)
Fault
PTC Overheat
PTC Reset Delay Active
Phase Loss
Wrong Phase Sequence
Note: Internal motor protection is not available on CHSD compressors (10 and 13T sizes).

Oil Level

Oil should also be visible in the sight glass when the compressor is running. When operating, each
compressor in a tandem or trio set may have a different oil level.
To check compressor oil level, refer to the label near the compressor sight glass. The compressor(s)
must be off. Wait three minutes. With tandem or triple compressors the oil level will equalize after
shutdown. Compressor oil level should be clearly visible within the sight glass when the
compressors are off.

Oil Fill, Removal and Capacity

The Model CSHN compressors have an oil charging valve with a dip tube that goes to the bottom
of the compressor. This can be used to add or remove oil from the compressor.
Model CSHD compressors have a Schrader valve in the middle of the compressor which is used
to add oil. To remove oil from these compressors, the system refrigerant charge must be removed
and then the oil can be removed using a suction style hand pump and tube in the oil equalizer tube
fitting. Oil can also be added to these compressors through the oil equalizer tube fitting. Care must
be taken to prevent moisture from entering the system when adding oil.

Compressor Oil Capacity

CSHD 125, 161 — 7 Pints
CSHN 184 —14.2 Pints
CSHN 250 —15.2 Pints
CSHN 315 —16.2 Pints
CSHN 374 —17.2 Pints
Use only Trane OIL00080 (1 gallon). Do not use any other POE oil.
NOTICE:
Equipment Damage!
Never reuse oil.

Oil Testing

Use Trane Oil Testing Kit KIT06815 only for testing lubricating oil in the Model CGAM chiller. Note
that the POE oil used in this product is very hygroscopic and easily absorbs and retains moisture.
The acceptable moisture content is less than 100 ppm and acceptable acid level is less than 0.5 TAN.
Note that refrigerant and moisture is very difficult to remove from this oil using vacuum. Also note
that once the seal on a container of POE oil is opened, the oil must be used.
In the event of a compressor failure, always test the oil with an acid test kit to determine whether
the compressor failure was mechanical or electrical. This is important because it dictates correct
cleanup procedure.
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LED on LED off
40 ms 460 ms
80 ms 920 ms
500 ms 500 ms
120 ms 120 ms
LED on LED off
40 ms 460 ms
80 ms 920 ms
500 ms 500 ms
120 ms 120 ms
CG-SVX17D-EN