ETI NETCOM ADH NEMA Assembly Replacement Procedure page 4

7. Using a tubing wrench or vacuum tubing pliers, carefully
remove the two air hoses connected to the existing
humidity sensor. Try to not move the fittings or break the
seal. Refer to Figure 4.
Air Out hose (straight fitting)
Figure 4. THE TWO HUMIDITY SENSOR AIR HOSES.
8. Using the diagonal cutters, cut the two tie wraps
securing the humidity sensor assembly to the two tie
wrap mounts.
9. Once both air hoses and the terminal block have been
disconnected and the two tie wraps have been cut,
remove the existing
dehydrator.
10. Place the new humidity sensor onto the two tie wrap
mounts from which the original assembly was removed.
Rotate the sensor on the two mounts so that the two air
hoses reach their respective 90° and straight fittings, just
as they were on the original assembly. The Air Out hose
connects to the straight fitting. The Air In hose connects
to the 90° fitting. There is no right or wrong angle for the
humidity sensor itself in terms of its function. All that
matters is that each air hose connects securely to its
respective fitting. Do not yet apply the tie wraps.
11. Install the new humidity sensor terminal block to the
electrical connector which was removed in step 6.
Tighten the two captive end screws to secure the
terminal block in place.
12. Once the rotation of the humidity sensor is determined
based on the position of the hoses to the fittings, secure
the new humidity sensor assembly in place by feeding
the two tie wraps from the kit through the slot in each
mount, knurled side up. Tighten the tie wraps, then cut
off the excess from each one.
MODEL ADH NEMA
Air In hose (90° fitting)
humidity sensor from
4
13. Reconnect the "Y" section of the tubing assembly,
disconnected in step 5, to the outlet port fitting.
14. Reinstall the front cover removed in step 4 of this section.
If it was placed upside down on the lid of the unit during
this procedure, carefully turn the cover back over and
work it back into position, past the wires and other
components in the enclosure. Reinstall the four corner
screws securing the front cover to the chassis.
15. Reconnect the ground wire by inserting it behind the
retaining screw from which it was removed in step 3, then
tighten the ground wire retaining screw. Connect the
terminal block to the power connector by holding it in
place then tightening the two captive screws. Reconnect
both ends of the orange Ethernet cable removed in step 3
of this section. It does not matter which end of the
Ethernet cable goes into which receptacle.
16. With the ground wire, power connector and Ethernet
cable reconnected, close the lid of the NEMA enclosure
and secure the two latches opposite the hinges. Secure
the lid in place by reinstalling the two captive screws in the
two outer corners of the lid.
CONTACTING CUSTOMER SERVICE
For technical help, questions or comments concerning this
product or any ETI product contact Customer Service 8:00 a.m.
the
- 5:00 p.m. Eastern Time.
Email: info@networketi.com
Web: networketi.com
Mail: ETI
1850 North Sheridan Street
South Bend, IN 46628
HUMIDITY SENSOR ASSEMBLY REPLACEMENT PROCEDURE | PART NO.
HUMIDITY SENSOR ASSEMBLY
REPLACEMENT PROCEDURE
24105 REV B.0