Operation Instructions; Digital Display - Description; Before First Use Of The Appliance; Switching The Appliance On/Off - Bosch OptiFlow Professional GWH12 1 CTD E23 F5 L Operating Manual

3

Operation instructions

Open all the water and gas valves.
CAUTION: Hot surface!
The front of the appliance may reach high
temperatures.
3.1

Digital display - description

Fig. 2 Digital display
[1] ON/OFF button
[2] Programming button
[3] LCD panel
[4] Temperature increase button
[5] Temperature decrease button
3.2

Before first use of the appliance

CAUTION:
▶ The initial start-up of the water heater
must be done by an authorised installer
who will hand the customer the
operating instructions.
▶ Check that the type of gas indicated on the rating plate is
the same as the gas to which the appliance is connected.
▶ 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.
OptiFlow Professional
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 screen cover shows the selected water temperature.
Fig. 3
Switching the appliance off
▶ Press the button
3.4

Temperature control

The temperature indicated on the LCD
display matches the pre-selected
temperature.
▶ Press the buttons
temperature.
Fig. 4
Operation instructions | 7
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or until you reach the desired
6 720 813 939 (2016/05)