ETI NETCOM ADH Replacement Procedure
Automatic air dehydrator main circuit board assembly
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- Manual (71 pages) ,
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Summary of Contents for ETI NETCOM ADH
- Page 1 MODEL ADH NETCOM ® AUTOMATIC AIR DEHYDRATOR WITH ETHERNET ® NETCOM™ AUTOMATIC AIR DEHYDRATOR MAIN CIRCUIT BOARD ASSEMBLY REPLACEMENT PROCEDURE Replacement Kit Part Number 24084 Document Part Number 24097 South Bend, Indiana USA networketi.com ADH INSTRUCTION MANUAL | PART NO. 24097...
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Page 2: Safety Information And Warnings
SAFETY INFORMATION AND WARNINGS Abnormal Odor or Smoke Rack Mounting In the event of smoke or a burning or Before and after rack mounting the abnormal odor, immediately interrupt ADH NETCOM, ensure that the rack power to the ADH NETCOM with the is stable. - Page 3 TOOLS REQUIRED ADH NETCOM MAIN CIRCUIT The following tools are needed to perform BOARD ASSEMBLY this procedure: REPLACEMENT PROCEDURE Straight slot screwdriver • This procedure addresses the removal and Tubing wrench or vacuum tube pliers • replacement of the Main Circuit Board 1/4-inch nut driver •...
- Page 4 Figure 1a. THE ADH NETCOM MAIN CIRCUIT BOARD ASSEMBLY. South Bend, Indiana USA networketi.com ADH INSTRUCTION MANUAL | PART NO. 24097...
- Page 5 Figure 1b. THE ADH NETCOM MAIN CIRCUIT BOARD ASSEMBLY. South Bend, Indiana USA networketi.com ADH INSTRUCTION MANUAL | PART NO. 24097...
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Page 6: Removal And Replacement
MAIN CIRCUIT BOARD ASSEMBLY Remove both top panels and the front REMOVAL AND REPLACEMENT panel. To remove the front panel, it is necessary to disconnect the two To replace the Main Circuit Board Assembly sets of electrical leads (4 total) (23253) either NETCOM... - Page 7 REMOVAL OF THE AC POWER SUPPLY Both the RS422 A and B MODULE communications ports, as well as the Ethernet communications port, all on Disconnect the red and black leads the back of the dehydrator, are running from the AC power supply actually part of the Main Circuit Board module to terminal block J4.
- Page 8 Using the 5/16” nut driver, loosen and Using the 5/16” nut driver, loosen and remove the nuts and lock washers remove the two nuts and lock washers securing the existing compressor securing the existing AC power supply mounting bracket to the chassis. module to the chassis.
- Page 9 From circuit board terminal block J1, carefully remove all leads connected To remove leads, to it. Refer to Figure 13. Disconnect gently press in on all leads from terminal block. orange release tabs using flat blade screwdriver. Figure 10. TERMINAL BLOCK J17. To remove leads, gently press in on orange release By now, all six leads should be tabs using flat blade screwdriver.
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Page 10: Electrical Connector
With all electrical leads and cables and the outlet manifold air hose disconnected from the board, and with the two stand-offs also removed, with both hands, gently pry and lift the main circuit board assembly out of the chassis. When removing the board, pay close attention to the communications ports on the back of the unit as they are, in fact, part of the... - Page 11 Using the information in Figure 17, connect leads from humidity sensor terminals on circuit board terminal block J17. Either lead may be connected to Press in gently on orange release tabs using flat either terminal. blade screwdriver to replace leads. Lead Connector / Terminal...
- Page 12 Connect the two AC power supply Reconnect the compressor air hose to leads (black and red) to the two left- the compressor fitting. Refer back to side terminals on J4 from which the Figure 9 on page 8. original leads were disconnected. Re-install the compressor and its Connect them with the black lead on ®...
- Page 13 To replace the Main Circuit Board Assembly (23253) in an ADH NETCOM AC NEMA, perform the steps below. Shut machine power unplugging the unit. Open the two front door latches, loosen the two captive screws in the corners of the housing opposite the Power Green hinges, then open the NEMA box.
- Page 14 Remove and retain the four mounting Disconnect the two pairs of white and red LED leads (4 total) from the screws from the four corners of the four terminals on the right side of protective front cover, then slowly lift terminal block J4.
- Page 15 Both the RS422 A and B From circuit board terminal block J1, communications ports, as well as the carefully remove leads Ethernet communications port and connected to it. Refer to Figure 6. Use the Reset button, are actually all part a flat blade screwdriver to gently press in on each orange release tab, then of the Main Circuit Board Assembly.
- Page 16 With all electrical leads and cables and the outlet manifold air hose disconnected from the board, and with the three mounting screws also removed, with both hands, gently pry Leads connect to and lift the main circuit board out of Terminal Block J1 on the chassis.
- Page 17 Using the information in Figure 10, connect the leads from the humidity sensor to the terminals on terminal block J17. Either yellow lead may be connected to Press in gently on orange release tabs using flat either terminal. blade screwdriver to replace leads. Lead Connector / Terminal...
- Page 18 Reconnect the Alarm Relay cable Connect power supply leads to terminal block J4 with the black lead to the left-side receptacle on the on the left (+24 RET) and the red lead new circuit board and secure with on the right (+24). Refer to Figure 12. release handles.
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Page 19: Questions And Comments
Inc. reserves the right to revise this publication and to make changes and improvements products described in this publication without the obligation of ETI, Inc. to notify any person organization such revisions, changes or improvements. No part of this manual may be...
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