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Operation Instructions; Digital Display - Description; Before Commissioning The Appliance; Switching The Appliance On/Off - Bosch OptiFlow Professional GWH12 1 CTD E23 Operating Manual

Gas continuous flow water heater
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3

Operation instructions

Open all the water and gas valves.
CAUTION: Burns!
In the flue exit area, high temperatures may
be reached.
▶ Do not touch the flue exit area while in
operation.
Fig. 2
3.1

Digital display - description

1
2
Fig. 3
Digital display
[1] ON/OFF button
[2] Programming button
[3] LCD panel
[4] Feed button
[5] Return button
OptiFlow Professional
6720806426-06.1V
3
4
5
6720806146-02.1V
3.2

Before commissioning the appliance

CAUTION:
▶ The initial start-up of the water heater
must be done by an authorised installer
who will provide the customer with all
the information required for the proper
operation thereof.
▶ Check that the type of gas indicated on the rating plate is
the same type supplied to the appliance.
▶ Plug in the appliance to the electrical socket and switch on.
▶ Open the gas isolation valve of the installation.
▶ Open the water isolation valve of the installation.
3.3

Switching the appliance on/off

Switching on the appliance
By default, the heating temperature of the
water is:
55°C preset appliances: 55°C
50°C compliant appliances: 50°C.
▶ Press the button
.
The display shows the selected water temperature.
Fig. 4
Switching off the appliance
▶ Press the button
.
3.4

Temperature control

The temperature indicated on the LCD
display matches the pre-selected
temperature.
Operation instructions | 7
6720806146-03.1V
6 720 813 938 (2016/06)
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