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Electrical Connections; Electrical Power Supply; Position Of The Fuses In Control Unit - Bosch GWH C 800 ES Installation Instructions Manual

Temperature modulated with electronic ignition suitable for heating potable water - not approved for space heating purposes intended for variable flow applications
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4

Electrical connections

4.1

Electrical power supply

Warning:
For
disconnect the power supply cord to
the heater before any service or testing
is performed.
Warning:
This
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 GWH C 800 ES requires an electrical power
supply from a 120VAC / 60Hz circuit (with a dedicated
outlet) and must be properly grounded.
A means for switching off the 120VAC power supply
must be provided.
The heater is wired as shown in the wiring diagram
(chapter 9, Fig. 65).
6 720 608 643
safety
reasons,
heater
must
be
4.2

Position of the fuses in control unit

To check fuses, proceed as follows:
B Remove the front cover, see Fig. 4, page 6.
B Remove the three screws from the control unit.
Fig. 39
B Remove the six screws from the back cover of the
control unit, see Fig. 40, pos. 2.
B Check the fuses in the printed circuit board, see Fig.
40, pos. 3.
Fig. 40 Fuses position
B After checking the fuses, reinstall all parts in reverse
order.
Electrical connections
27

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