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Electrical connections
4 Electrical connections
4.1 Electrical power supply
The water heater requires an electrical power supply
from a 120VAC / 60Hz properly rated receptacle and
must be properly grounded.
The heater is wired as shown in the wiring diagram
(chapter 9, Fig. 72).
Fig. 45 Connecting power supply cord
1 Power cord length: 3ft.
Note: Outlet appliance is plugged in to should be
clear from possible water damage.
4.2 Position of the fuses in control unit
To check fuses, proceed as follows:
B Remove the front cover, see Fig. 4, page 7.
B Remove the three screws from the control unit.
Fig. 46
B Remove the six screws from the back cover of the
control unit, see Fig. 47, pos. 2.
B Check the fuses in the printed circuit board, see Fig.
47, pos. 3.
Fig. 47 Fuses position
B After checking the fuses, reinstall all parts in reverse
order.
Warning: For safety reasons,
disconnect the power supply cord to
the heater before any service or testing
is performed.
Warning: This heater must be
electrically grounded in accordance
with the most recent edition of the
National Electrical Code. NFPA 70. In
Canada, all electrical wiring to the
heater must be in accordance with local
codes and the Canadian Electrical
Code, CSA C22.1 Part 1. Do not rely
on the gas or water piping to ground the
metal parts of the heater.
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