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3/2 Solenoid Valve (Y) -
This valve controls the position of the inlet valve in response to signals from the
AirSmart Controller. It also provides a small amount of scavenge air to carry off compressor shaft seal oil
challenge. See inlet valve assembly (2) for more information.
Pressure Sensor - Sump Dry Side (B1) -
This device is connected after the minimum pressure valve. It
converts the pressure in the plant air system into an electrical signal for use by the
“ASG2” controller for
monitoring and control load/unload operation.
Pressure Sensor - Sump Wet Side (B2) -
This device is connected to the oil sump. It converts the pressure in
the oil sump into an electrical signal for use by the
“ASG2” controller for monitoring and control. Its signal, when
compared to that of sensor
(B1)
, indicates the pressure loss across the air/oil separator element and it can also
trigger a shutdown event in case an exceedingly high pressure is detected.
Air Filter Vacuum Switch (B3)
-
This switch is used to monitor air filter condition and alert the user if the filter
requires service or replacement.
Temperature Sensor - Sump Wet Side (R1) -
This device is connected to the oil sump. It measures the
temperature in the compressor discharge port via the
“ASG2” controller. Its signal can trigger a shutdown event
in case an exceedingly high temperature is detected.
Temperature Sensor – Sump Dry Side (R2) –
This device is connected to the outlet side of the air/oil coalescing
element assembly bolted to the discharge of the oil sump. It measures the temperature of the compressed air, via
the ASG2 controller, after final oil separation has been achieved. Its signal can trigger a shutdown event in case
an exceedingly high temperature is detected.
The following items are provided in the Total System Hardware option:
Receiver (21)
- Provides storage of compressed air and serves as a support for the compressor unit and optional
dryer.
Refrigerated dryer (22) -
The [optional] electric refrigerated dryer cools and lowers the dew point of the
compressed air stream delivered by the compressor unit by removing the condensed water vapor entrained.
Dryer bypass valve (23) -
This pair of three-way valves allows the isolation of the refrigerated dryer (from the
compressed air line) for trouble shooting or maintenance purposes.
Drain isolation valve (24) -
This valves isolate the condensate drain device from the compressed air lines, thus
allowing for maintenance and/or temporary condensate drainage functions.
Condensate drain valve (25) -
This device provides automatic condensate drainage from the receiver. It, along
with the receiver, replaces the water separator shipped loose with the basic package.
Pressure relief valve (26) -
This device protects the pressure containing components included with the received
against high pressure exceeding 188.5 psig. Section 9, See page 70, for maintenance information.
Pressure gauge (27) -
This device monitors the compressed air pressure within the receiver.
The following items are provided in the Inlet Flow Modulation Hardware option:
The inlet valve modulation system is employed to match the supply of compressed air delivered by the
compressor to the customer
’s grid demand. Air flow modulation is achieved by gradually throttling (e.g., closing)
the intake valve poppet until a steady state discharge pressure level is reached. A PID algorithm stored in the
ASG2 controller regulates the duration and frequency two-way solenoid valves fill or vent the compressed air
stream that adjust the position of the intake valve poppet
– and thus its throttling setting.
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...