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13-25-608 Page 54
ADDITION OF OIL BETWEEN CHANGES
must be made when the oil level is below the minimum level
of the sight glass as read while the unit is completely off and blown down, and the foam has settled out.
1.
Be sure the unit is completely off and that no air pressure is in the oil reservoir.
2.
Disconnect, tag and lockout the power supply to the starter.
3.
Wipe away all dirt around the oil filler plug.
4.
Remove the oil filler plug and add oil as required to return the oil level to the middle of the sight
gauge.
5.
Install oil filler plug, run and check for leaks.
DO NOT OVERFILL (you should see oil slightly above the full line after running fully loaded and then
shutting down the machine and allowing the foam to settle out). The quantity required to raise the oil
level from
“MIN” to “FULL” is 1.7 Gals (6.4 L). Repeated addition of oil between oil changes may indicate
excessive oil carry-over and should be investigated.
Excessive oil carry-over can damage equipment. Never fill oil reservoir above
the “FULL” marker.
MOISTURE IN THE OIL SYSTEM –
During periods of low ambient temperatures, light duty cycles, high
humidity, or in the event of thermal mixing valve malfunction, the oil charge residing in the sump may not
reach a high enough temperature to keep water vapor from condensing as liquid water, a condition that
contaminates the oil charge, may cause excessive oil carryover, or result in compressor failure.
To help the end user determine if the compressor package is operating under potential water condensing
conditions, the charts in Fig 5-2 and 5-3 have been provided. To use, find the prevailing ambient
temperature along the horizontal scale of the chart, move vertically from this point until intercepting the
slanted line corresponding to the operating discharge pressure; and finally, move horizontally from this
point to read the corresponding water vapor dew point on the vertical scale. The compressor discharge
temperature must be maintained at a minimum of 10
°
F (5.5
°
C) above this dew-point temperature to
prevent condensation accumulation in the lubricant reservoir. Note that the charts conservatively assume
100% relative humidity for the ambient air.
The presence of water in the oil may be identified by one of the following means:
·
Oil drawn from the oil sampling valve attached to the sump (see Fig 1-2 on page 10).
·
Oil volume drained during an oil exchange.
·
Periodic (e.g., every 2000hrs) oil sample analyzed by a reputable laboratory.
Summary of Contents for APEX25-30A
Page 11: ...13 25 608 Page 10 Figure 1 2 COMPRESSOR ILLUSTRATION VARIABLE SPEED 304USC797 A Ref Drawing...
Page 12: ...13 25 608 Page 11 Figure 1 3 COMPRESSOR ILLUSTRATION FIXED SPEED 305USC797 A Ref Drawing...
Page 27: ...13 25 608 Page 26 Figure 4 2 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 1 of 4...
Page 28: ...13 25 608 Page 27 Figure 4 3 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 2 of 4...
Page 29: ...13 25 608 Page 28 Figure 4 3 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 3 of 4...
Page 30: ...13 25 608 Page 29 Figure 4 3 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 4 of 4...
Page 31: ...13 25 608 Page 30 Figure 4 3 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 1 of 4...
Page 32: ...13 25 608 Page 31 Figure 4 4 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 2 of 4...
Page 33: ...13 25 608 Page 32 Figure 4 4 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 3 of 4...
Page 34: ...13 25 608 Page 33 Figure 4 4 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 4 of 4...
Page 45: ...13 25 608 Page 44 Figure 4 7 WIRING DIAGRAM FS 575 VOLT 309USC546 01 Ref Drawing Page 1 of 3...
Page 46: ...13 25 608 Page 45 Figure 4 8 WIRING DIAGRAM FS 575 VOLT 309USC546 01 Ref Drawing Page 2 of 3...
Page 47: ...13 25 608 Page 46 Figure 4 8 WIRING DIAGRAM FS 575 VOLT 309USC546 01 Ref Drawing Page 3 of 3...
Page 51: ...13 25 608 Page 50 Figure 4 8 PIPING AND INSTRUMENTATION ILLUSTRATIONJ 301USC797 C Ref Drawing...