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Electrical Connections; Electrical Power Supply; Position Of The Fuses In Control Unit - Bosch GWH 715 ES Installation Instructions Manual

Temperature modulated with electronic ignition suitable for heating potable water only - 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 should 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 715 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. 59).
6 720 608 158
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 on front of the control unit.
Fig. 35
B Pull control unit free to access and remove the six
screws from the back cover of the control unit, see
Fig. 36, pos. 2.
B Check the fuses in the printed circuit board, see Fig.
36, pos. 3.
Fig. 36 Location of fuses
B After verifying the fuses mount all parts in reverse
order.
Electrical connections
25

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