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3. FOR THE USER
3.1 Commissioning
Warning
Installing and commissioning of this
water heater should only be carried out
by a qualified competent heating
engineer.
Filling the water heater
1. Close the drain tap.
2. Open the cold water tap to the water
heater and open all taps where hot
water can be drained for de-
aeration. The water heater is filled
as soon as cold water flows from all
taps.
3. Close all hot water drain taps.
Putting into operation
1. Check whether the device has been
filled with water and whether the
gas supply to the water heater is
open.
2. Turn the temperature control knob
clockwise and place the control knob
in the ‘PILOT’-position ( X).
3. Remove the outer door of the
combustion chamber.
4. Keep the control button pushed-in
and press the piezo-ignitor several
times until the pilot burns (see
drawing 6).
5. Keep the control button (✸) pushed-
in for approximately 20 seconds.
After releasing the button the pilot
should remain burning. If the pilot
extinguishes you should wait 5
minutes before repeating the ignition
procedure.
6. Fit the outer door;
7. Turn the control button to the ‘ON’ ( )
position.
8. Place the temperature control button
in the correct position, preferably
position 4 (approximately 60°C). The
appliance will now operate fully
automatically.
3.2 Use
The appliance is under water
supply pressure (with a maximum
of 8 bar). The amount of cold water that
is added is equal to the amount of hot
water used. The gas control block
automatically regulates the gas supply.
The main burner will ignite as soon as a
reduction in water temperature is
sensed by the control thermostat. The
main burner will shut down as soon as
the water temperature returns to the
preset temperature.
Position 1 = approximately 30°C
Position 2 = approximately 40°C
Position 3 = approximately 50°C
Position 4 = approximately 60°C
Position 5 = approximately 70°C
Higher water temperatures will
cause more scale build up in the
appliance. It is for this reason that it is
recommended to place the temperature
control knob in position 4 as the
accumulation of scale will be reduced at
lower temperatures. In addition a safety
thermostat has been fitted. This
thermostat completely shuts off the gas
supply if the water temperature
reaches 82°C, also extinguishing the
pilot burner.
3.3 Putting out of operation
1. For short periods of time the control
knob should be turned to (✸); the
pilot keeps burning.
2. For longer periods of time the knob
should be turned to the (●) position;
the pilot is extinguished.
3. Close the gas tap in the supply pipe.
In case of longer interruptions or in
the event of risk of frost it is
recommended to also close the cold
water tap and to drain the appliance
after cooling (open the drain tap; it is
possible to connect a drain hose to
the drain tap; open the nearest hot
water drain point to prevent
airlocks).
To be able to drain the appliance
completely it should be disconnected
and tilted slightly in the direction of
the drain tap.