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7. Install the oil filler plug and operate the unit for about a minute allowing oil to fill all areas of the
system. Check for leaks.
8. Shut down unit, allowing the oil to settle, and be certain all pressure is relieved.
9. Add oil, if necessary, to bring level to
“FULL.”
Use only CLEAN containers and funnels so no dirt enters the reservoir. Provide for clean storage of oils.
Changing the oil will be of little benefit if done in a careless manner.
Use only the replacement element shown on the filter tag or refer to the parts
list for the part number.
Excessive oil carry-over can damage equipment. Never fill oil reservoir above
the “FULL” marker.
Improper oil filter maintenance will cause damage to equipment. Replace filter
element every 1000 hours of operation. More frequent replacement could be
required depending on operating conditions. A filter element left in service too
long may damage equipment
THERMOSTATIC MIXING VALVE.
This device, housed within the compressor body, mixes hot and
cooled oil and delivers a tempered mixture to the oil filter and finally the compressor injection port - see
FIGURE9- 1, Page 76, for its location.
The thermostatic element expands with heat. When oil coming from the sump is 5ºC below its setting, the
oil flow from the cooler is blocked. Within these two temperature limits the valve gradually mixes hot
separator oil with cooled heat exchanger oil to maintain a nearly constant injection temperature. When
the oil temperature exceeds the element
’s setting, the valve blocks all hot oil from entering and only
cooled oil is delivered.
Its nominal setting is stamped on the valve body. It may be verified by immersing the valve assembly into
an open container with lubricating oil, raising its temperature to its nominal setting and checking that the
element strokes fully from closed to open.)
Fixed speed packages typically use 55ºC thermostatic elements and variable speed packages use 70ºC
ones. If the standard element on a fixed speed package does not prevent water condensation for a given
combination of discharge pressure, ambient temperature and ambient relative humidity, it may be
replaced with the higher temperature one (70ºC). When this modification is made, it may be desirable to
change (see "Lubricant Change Procedure in this section) the oil charge with a high temperature one
(AEON 9000TH). Depending on the prevailing ambient temperature, the controller setting for the high
discharge temperature shutdown may have to be reset to 240ºF also. Consult GD for further details.
Optional Element.
If the compressor is used in a predominantly cold (<32ºF, 0ºC) and/or humid
environment, proper oil viscosity and avoidance of water vapor condensation in the oil system may be
achieved by using a higher setting (158ºF, 70ºC) thermostatic element. Consult Gardner Denver for
details.
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...