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Appliance details
B Remove the 5 screws on the front retaining bar (see
Fig. 24, pos. 1 and 2) being careful not to damage
the foam sealant material on it.
B Remove the two electrical strip connectors inside the
board (Fig. 25) and then loosen the 120V 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.
Rubber
grommets
Fig. 25 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. 24, 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.
B While holding the board in one hand or resting it on
a flat surface, remove the front cover of the control
board by removing its 4 screws.
B Once open, locate JP3 on the printed circuit board
(see Fig. 26). The board is supplied with a jumper
placed on one JP3 pin, this means that one of the
jumper sockets is connected to a JP3 pin and the
other socket of the jumper is in the air. To make the
high altitude adjustment complete, the jumper must
be connected to both pins.
B Remove the jumper from the JP3 pin (see Fig. 26).
B Line up the two jumper sockets with the two JP3
pins.
B Insert the jumper.
B Replace the front cover to the control board and re-
insert into heater and then proceed with previous
steps in reverse order. Be sure that the rubber
grommets of the electrical strip connectors are in
place and the 2 yellow igniter wires get re-
connected.
18
Once auxiliary cover is
off, pull off the two
electrical strip connec-
tors inside the board.
Once off, the wiring
strands can be removed
from the area of the
board by pulling their
rubber
grommets
outward.
Fig. 26 Control board adjustment for high altitudes
(above 4000 ft)
For altitudes greater than 8000 ft (2438 m),
i
a
special
measurement needs to be done. Please
contact CEC for detailed instructions.
2.13 Water connections
When facing the heater, the ¾" cold water inlet is on the
bottom right and the hot water outlet is on the bottom
left. Install the heater centrally in the building if possible
and make hot water piping runs as short as possible.
COLD
HOT
Fig. 27
B The use of a union when connecting both water
pipes to the inlet and outlet connections is
recommended, this will facilitate any necessary
servicing and required cleaning of the inlet water
particle screen.
Although water piping throughout the building may be
other than copper, we recommend that copper,
galvanized or suitably rated stainless steel flex line
piping be used for the water heater connections (follow
local codes if more stringent). Plastics or other PEX
type plumbing line materials are not suitable for
connecting directly to the water heater. Keep water inlet
and outlet pipes to no less than ¾" (19.05mm) diameter
to allow the full flow capacity.
If the cold and hot connections to the heater are
High altitude adjustment
(above 4 000 ft)
adjustment
and
CO
INLET FILTER
SCREEN
6 720 607 072 (16 January)
2
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