Section II - Description
Operating Modes
WARNING!
Never assume it is safe to work on a
compressor because it is not operating.
It may be in standby mode and could
restart at any time. Follow all safety
instructions in Section V - Maintenance
or Service Preparation.
Load/No Load
In the Load/No Load mode, the
compressor does not modulate the inlet
valve. The valve is either fully open or it is
closed. If system demands include regular
periods of air usage at less than full load,
a large compressed air storage capability
is required with this type of control.
Without adequate storage, rapid cycling
may occur. This will cause wide system
pressure fl uctuations that may affect the
performance of equipment using the
compressed air. Load/No Load works with
Auto Dual control to turn the compressor
off during extended periods of no demand.
8
Summary of Contents for QGV-20
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Page 70: ...Appendix A Dimensional Drawings QSI 90 120 140 micro 66...
Page 71: ...Appendix A Dimensional Drawings QSI 90 120 140 micro dry 67...
Page 72: ...Appendix A Dimensional Drawings QSI 90 120 140 micro tank mounted 68...
Page 73: ...Appendix A Dimensional Drawings QSI 90 120 140 micro dry tank mounted 69...
Page 74: ...Appendix A Dimensional Drawings QSI 90 120 140 guage 70...
Page 75: ...Appendix A Dimensional Drawings QSI 90 120 140 guage dry 71...
Page 76: ...Appendix A Dimensional Drawings QSI 90 120 140 guage tank mounted 72...
Page 77: ...Appendix A Dimensional Drawings QSI 90 120 140 guage dry tank mounted 73...
Page 78: ...Appendix A Dimensional Drawings QGV 20 25 30 460V 74...
Page 79: ...Appendix A Dimensional Drawings QGV 20 25 30 460V dry 75...
Page 80: ...Appendix A Dimensional Drawings QGV 20 25 30 460V tank mounted 76...
Page 81: ...Appendix A Dimensional Drawings QGV 20 25 30 460V dry tank mounted 77...
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