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Procedure for replacing obsolete pump with
maintenance free, extended life compressor
DESCRIPTION
A maintenance-free, long life Hargraves compressor has been instituted as an
across the board replacement for the obsolete KNF pump in ADH–2A COM
Dehydrators. The advantages of the new compressor are:
•
Brushless motor for long life and zero maintenance.
•
Hargraves' proprietary diaphragm material for longer life.
•
Higher airflow at pressures above 2 PSI, similar airflow below 2 PSI.
•
Smaller, lighter unit.
•
More efficient design requires less power to operate.
This procedure documents the steps required to perform a field upgrade from the
old pump to the new brushless unit.
PACKING LIST
23031
Hargraves Compressor Pump, small (Qty. 1)
12522
Hex nut (Qty. 4)
10378
Washer (Qty. 4)
16979
Spacer (Qty. 4)
17082
Cable Tie (Qty. 1)
17369
Tie Wrap Mount (Qty. 1)
23033
ADH–2A COM Pump Replacement Manual
Environmental Technology, Inc.
1850 N Sheridan Street • South Bend, IN 46628
www.networketi.com • helpdesk@networketi.com
23033 Rev. A
04/10
INSTALLATION MANUAL
Document Part Number 23033
http://www.networketi.com
®
ADH
–2A COM
Part Number 23031
Environmental Technology, Inc.
Page 1 of 4
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Summary of Contents for ETI ADH-2A COM
- Page 1 INSTALLATION MANUAL ® –2A COM Procedure for replacing obsolete pump with maintenance free, extended life compressor Part Number 23031 Document Part Number 23033 DESCRIPTION A maintenance-free, long life Hargraves compressor has been instituted as an across the board replacement for the obsolete KNF pump in ADH–2A COM Dehydrators.
- Page 2 INSTALLATION MANUAL Step 1: Turn off unit and remove plug. Step 2: Remove top cover. For rack mount units, remove 12 screws. For wall mount units, remove 10 screws. Step 3: Unscrew and remove the red and black wires. If wires cannot easily be removed from ferrite core, cut cable tie and open core to remove wires.
- Page 3 INSTALLATION MANUAL The new DC brushless pump is polarized. Failing to wire as shown will damage the pump motor and can cause additional damage to the dehydrator. TB1 label on circuit board White dot on circuit board Terminal Block TB1 (GR) (GR) Pins 1 and 3 are Ground.
- Page 4 Environmental Technology, Inc. to notify any person or organization of such revisions, changes or improvements. The ETI logo, We Manage Heat and ADH are registered trademarks of Environmental Technology, Inc. Copyright © 2010 Environmental Technology, Inc. All rights reserved.
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