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Operating the boiler
6720814333 (2018/04) 5
3 Operating the boiler
3.1 Overview of components
Fig. 1 Overview of components
[1] Control panel
[2] Pump
[3] Hydraulic isolation valves with temperature gauges
[4] Gas isolation valve
[5] Pressure gauge
3.2 Opening the gas isolation valve
Push the gas isolation valve in and turn anti-clockwise until the valve
lines up with the gas line.
Fig. 2 Opening the gas isolation valve
3.3 Opening service valves
Open both service valves so that the tap lines up with pipework.
Fig. 3 Opening service valves
3.4 Switch on the boiler
Put the on/off switch to position “1” ( figure 5, [1]).
3.5 Check water pressure
For the boiler to work efficiently, the normal water pressure must be
between 1.0 and 2.0 bar.
Ask the installer whether a higher pressure is necessary.
Read off the water pressure on the display (Chapter 4.1, page 6).
Top up the heating system if necessary (Chapter 5.1, page 8).
Fig. 4 Read off the water pressure
3.6 Setting the maximum boiler temperature
Set the maximum boiler temperature required in the setup menu
(Chapter 4.2).
3.7 Heating controller settings
Some of the functions described in this document change when
connecting a heating controller, i.e. room thermostat or weather-
compensated controls. The controls exchange parameters with the
boiler.
You should therefore carefully read the operating instructions for the
corresponding heating controls.
6720814333-01.1TD
4 353
2
1
6720814333-02.1TD
The heating and DHW operations can be switched on and
off independently of one another.
6720814333-03.1TD
6720813683-1.1TD
5


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