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7
USER GUIDE
7.1
USING THE BOILER
7.1.1
LEARNING YOUR WAY AROUND THE
CONTROL PANEL
Before carrying out any work on the boiler, switch the
power off at the mains switch installed in the boiler room
by the electrician.
Turn the ON/OFF switch on the control panel off.
(item marked 2, Fig. 23)
1 - Thermostat adjustable between 60 and 90° C
Central heating systems are generally designed to operate at
amaximum of 80° C. When used at lower temperatures, a 3-way mixer
valve installed on the heating flow pipe
temperature to be set manually or, if you decide to install a regulator
, automatically.
2.2.4)
We recommend that you set the thermostat to the maximum values to
get the best out of the domestic hot water system.
There is a risk of burns from hot water!
The water stored in the domestic hot water tank in the boiler can be at
a very high temperature.
In all cases, install the thermostatic mixer (Fig. 5b on page 4) on the
domestic hot water flow pipe which must not exceed 60° C. A mixer or
mixing valve at each point of use is recommended.
2 - ON/OFF switch
(item marked 2, Fig. 23)
This must be used to switch the boiler off before carrying out any work
on it.
3 - Summer/Winter selector switch
"Winter" position: provides both domestic hot water and central heating
functions. "Summer" position: The room thermostat or regulator
is switched off. The central heating circulator is also switched off. Only
the domestic hot water function is provided. You can use the thermostat
(1) to reduce the temperature and save energy. If there is not enough
hot water available, we recommend setting the thermostat (1) to its
maximum value.
When the weather turns cold again, simply select "Winter" to reactivate
the heating system.
4 - Thermometer
(item marked 4, Fig. 23)
Reads the boiler primary circuit (central heating) temperature directly.
5 - Controller
(item marked 5, Fig. 23)
Please refer to the enclosed instructions if you have chosen this option.
Fig. 23: Control panel
12
(FIG. 23)
(item marked 1, Fig. 23)
(see Fig. 3 on page 3)
(item marked 3, Fig. 23)
1
3
2 4
5
7.1.2
CENTRAL HEATING SYSTEM GAUGE PRESSURE
Your system is fitted with a central heating safety valve, set to 3 bar,
which is fitted with a pressure gauge.
First make sure that the water in the system is still pressurised. When
cold and after the air in the system has been bled, the pressure gauge
should show a pressure of between 1 and 2, depending on the height
of the building: (1 bar = 5m / 1.5 bar = 10 m and 2 bar = 15 m).
To add water, open the filling valve (Fig. 2 and 3 on page 3). Make sure
the valve is properly closed after filling. Bleed the air in the system to
get an accurate water pressure reading.
7.1.3
SAFETY VALVE
(item marked 2, Fig. 3 on page 3)
allows the
(§
If you notice anything unusual after this short trial, please
inform the installing engineer.
7.1.4
SAFETY UNIT
(item marked 1, Fig. 5a and 5b on page 4)
A monthly inspection is recommended:
Lift the lever on the emptying device for a few seconds to ensure that
the safety valve is working properly.
(§ 2.2.4)
If you notice anything unusual after this short trial, please
inform the installing engineer.
(central heating)
The water, which may flow out of the safety valve
is very hot and may cause serious burns.
The pipe discharging to waste water disposal
systeme should be open to the atmosphere and
installed in accordance with current regulations.
Make sure there is nobody near the flow of hot
water.
(domestic hot water)
The water flowing out of the safety unit may be
extremely hot.
The pipe discharging to waste water disposal
systeme should be open to the atmosphere and
installed in accordance with current regulations.
Make sure there is nobody near the flow of hot
water.
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