13-25-607 Page 34
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 "AirSmart" 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 "AirSmart" 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 converts the
temperature in the oil sump into an electrical signal for use by the "AirSmart" controller for monitoring and control.
Its signal is used to monitor compressor temperature and also trigger a shutdown event in case an exceedingly
high temperature is detected.
(The following items are provided in the Total System configuration:)
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 53, for maintenance information.
Pressure gauge (27) -
This device monitors the compressed air pressure within the receiver.
Summary of Contents for APEX15-18A
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Page 32: ...13 25 607 Page 30 Figure 4 7 WIRING DIAGRAM VS 575 VOLT 307UCC546 A Ref Drawing Page 2 of 4...
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Page 34: ...13 25 607 Page 32 Figure 4 9 WIRING DIAGRAM VS 575 VOLT 307UCC546 A Ref Drawing Page 4 of 4...
Page 37: ...13 25 607 Page 35 Figure 4 10 PIPING AND INSTRUMENTATION ILLUSTRATION 301UCC797 F Ref Drawing...
Page 60: ...13 25 607 Page 58 Figure 9 6 Compressor Module Hardware 308UCC810 C Ref Drawing Page 1 of 1...
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