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Electrical Connections; Electrical Power Supply; Position Of The Fuses In Control Unit - Bosch C 950 Installation Manual

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Fig. 47 Gas pressure test port (left tapping)

Electrical connections


Electrical power supply

▶ For safety reasons, disconnect the power supply
cord to the heater before any service or testing is
▶ 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
Power cord length: 3ft.
Note: The outlet the appliance is plugged into should be clear from
possible water damage.

Position of the fuses in control unit

To check fuses, proceed as follows:
▶ Remove the front cover, see fig. 4, page 8.
Static Gas Pressure Reading (see chapter 4.14)
enter here: ___________________ Date: ___________
Operating Gas Pressure Reading (see chapter 4.14)
enter here: ___________________ Date: ___________
Table 45
▶ 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 | 37
6 720 805 440 (2014/11)



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1050 esC 950 esC 1050 es