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5
Electrical connections
5.1
Electrical power supply
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.
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
10, fig. 76).
Fig. 48
Connecting power supply cord
[1] Power cord length: 3ft.
Note: The outlet the appliance is plugged into should be clear
from possible water damage.
5.2
Position of the fuses in control unit
To check fuses, proceed as follows:
▶ Remove the front cover, see fig. 4, page 12.
C 950/C 1050 (Pro TL 175 C/199 C) – 6 720 805 440 (2019/10)
6720608643-15.1AL
1
▶ Remove the three screws from the control unit.
Fig. 49
▶ Remove the six screws from the back cover of the control
unit, see fig. 50, pos. 2.
▶ Check the fuses in the printed circuit board, see fig. 50,
pos. 3.
Fig. 50
Fuses position
▶ After checking the fuses, reinstall all parts in reverse order.
Electrical connections
51
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