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Shuttle valve (30.1) –
This device taps compressed air for the modulation system from within the package or the
customer grid, avoiding supply pressure lapses during start-up.
Pressure regulator and Gauge (30.2) –
These devises regulate and indicate the compressed air signal that is
used by the modulation system. A setting of 25-30 psig is recommended.
Check valves (30.3) –
These devices control the unidirectional flow of compressed air within the modulation
system.
Two-way solenoid valve -Fill (30.4) –
This devices fills the inlet valve
Actuator (2.1)
with compressed air,
gradually closing it and thus reducing the intake air flow to the compressor. An
orifice (30.4)
limits the fill flow
rate.
Two-way solenoid valve -Vent (30.7) –
This devices vents the compressed air within inlet valve
Actuator (2.1)
,
gradually opening it and thus increasing the intake air flow to the compressor. An
orifice (30.5)
limits the vent
flow rate.
Summary of Contents for APEX25-30B
Page 11: ...13 25 608 Page 10 Figure 1 2 COMPRESSOR ILLUSTRATION VARIABLE SPEED 304USC797 01 Ref Drawing...
Page 12: ...13 25 608 Page 11 Figure 1 3 COMPRESSOR ILLUSTRATION FIXED SPEED 305USC797 01 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...
Page 86: ...NOTES...
Page 87: ...NOTES...