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Replacing a Communication Gateway Module
NOTICE
To avoid damaging the circuit boards when
servicing the control box, wear Part No. 112190
grounding strap on your wrist and ground
appropriately.
To avoid electrical component damage, remove all
system power before plugging any connectors.
1. Follow the steps in Before Servicing, page 34.
2. Loosen the screws (124) and remove the
enclosure cover (117).
3. Remove the screws (182b) holding the
communication gateway module (CGM) to the
module base. Remove the CGM. You do not
have to disconnect the cables.
4. Install the new CGM (182a), using the screws
(182b).
5. Turn on
power at the main circuit breaker.
6. Turn on the con
trol box power switch. Check that
the three stat
us indicator lights are green.
7. Reinstall the
cover (117) and tighten the screws
(124).
Figure 3
0 Replacing a Communication Gateway
Module
332709B 45