Trane RTWB Helical-Rotary Installation Operation & Maintenance page 35

Oil separator check level
Follow the steps listed below and
refer to the notes listed in Figure 12.
1. Turn off the unit.
2. Attach the hoses and sight glass
to the oil-separator Schrader
valves, as shown in Figure 12.
Remove non-condensibles.
3. After the unit has been off for 10
minutes, move the sight glass up
and down until the level can be
seen.
4. After the level has been
determined, remove the sight
glass and hoses.
RTWB-SVN01B-E4
Periodic
Maintenance
Figure 15 – System Oil Specifications
1: Oil separator
2: Valve
3: ¼" refrigeration hose
4: Sight glass
5: Minimum oil level
6: Maximum oil level
Table 12 – Oil level limit
Minimum oil level (mm)
Maximum oil level (mm)
Oil separator diameter
152 mm 203 mm
90 120
155 205
254 mm
145
235
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