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5
Using the remote control
6 720 606 990
4.2 Remote control trans-
ceiver PCB installation
Pre-installation preparation
B Disconnect power supply to heater.
B Remove plastic decals on front
panel.
B Loosen two Philips head screws
located behind plastic decals.
B Lift front cover upward and remove.
Fig. 3
B Remove the 5 screws on the front
retaining bar (see Fig. 3, pos. 1 and
2) being careful not to damage the
foam sealant material on it.
B Remove control unit auxiliary cover
(Fig. 3, pos. 4).
B Remove the two electrical strip
connectors inside the auxiliary cover
(Fig. see diagram below) and then
loosen the 110V power supply cord
retaining nut located underneath the
heater. Once loosened, the power
cord can be pulled up through the
heater to provide sufficient slack.
Fig. 4 Electrical strip connectors
B At the ignition electrodes, pull off the
2 yellow igniter wires that come from
the top of the control board (Fig. 3,
pos. 3). Then pull the complete
control board forward and out of the
heater, pull up the power supply
cord further if more slack is needed.
Warning: For safe-
ty reasons, discon-
nect the power
supply to the water
heater before per-
forming installation.
Once auxiliary cover
is off, pull off the two
electrical strip
connectors from the
board. Once off, the
wiring harness can
be removed from the
case by pulling their
rubber seals
outward.
6720606990-0701_(Remote control).fm Page 5 Tuesday, January 30, 2007 10:07 AM