Bosch GWH 10-2 G Series, Installation Manual And Operating Instructions

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Operating instructions
6 720 608 992 (2021/02)
5 Operating instructions
5.1 Digital display - description
Fig. 8 Digital display
[1] Temperature/error code
[2] Malfunction indicator
[3] Temperature measurement units
[4] Heater in operation (burner turned on)
5.2 Before starting up the heater
▶ Check if the gas indicated on the rating plate is the same as
the one used at the location.
▶ Open the gas valve.
▶ Open the water valve.
5.3 Turning the heater on and off
Turning on
▶ Press the switch , position .
Fig. 9
Turn Hot Tap on, LED light on = Main burner on
Fig. 10
Turning off
▶ Press the switch , position .
5.4 Water flow
If the red LED starts flashing during operation, check the water
flow.
Open all water and gas isolation valves.
Purge the pipes.
CAUTION:
The front stainless steel panel in the burner and
pilot burner area may reach high
temperatures, with risk of burning in case of
contact, and must not be removed.
CAUTION:
▶ Initial startup must be performed by an
authorised gas fitter who will provide the
customer with all the necessary
information for optimum operation of the
gas heater.
Only press switch with no water flowing
(activation of the switch with water flowing will
result in an
FO fault. Turn the flow off then on to
clear fault).