Bosch OptiFlow Professional GWH12 1 CTD E23, Operating Manual

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6 720 813 939 (2016/05) OptiFlow Professional
Operation instructions | 7
3 Operation instructions
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
▶ 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.
3.3 Switching the appliance on/off
Switching on the appliance
▶ Press the button .
The screen cover shows the selected water temperature.
Fig. 3
Switching the appliance off
▶ Press the button .
3.4 Temperature control
▶ Press the buttons or until you reach the desired
temperature.
Fig. 4
Open all the water and gas valves.
CAUTION: Hot surface!
The front of the appliance may reach high
temperatures.
CAUTION:
▶ The initial start-up of the water heater
must be done by an authorised installer
who will hand the customer the
operating instructions.
By default, the heating temperature of the
water is:
55°C preset appliances: 55°C
50°C compliant appliances: 50°C
The temperature indicated on the LCD
display matches the pre-selected
temperature.