14
2.2
Commissioning
2.2.1 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 taps.
2.2.2 Putting into operation
1. Make sure the device is filled with
water and the gas pipe to the boiler
is open.
2. Turn the temperature-control knob
fully to the right and turn the control
knob to the position ‘PILOT FLAME’
(
✸
).
3. Keep the control knob depressed
and press the piezo igniter a few
times until the pilot flame is burning
(see Fig. 8.)
4. Keep the control knob (
✸
)
depressed for about 20 seconds.
When released, the pilot flame
should continue to burn. Should the
pilot flame go out, wait 5 minutes
before repeating the ignition
procedure. The size of the pilot flame
Fig. 8 – Operation gas-control block
may be adjusted (see also ‘Adjusting
the pilot flame’).
5. Turn the control knob to the ‘ON’
( ) position.
6. Turn the temperature-control knob
to the desired position, preferably to
position 4 (approx. 60°C). The
device will now operate
automatically.
7. Check the burner pressure setting
(see Fig. 10) and adjust if required
based on the technical information
(see page 10)
2.3
Adjusting the pilot
flame
The pilot flame is adjusted using the
adjusting screw underneath the plastic
covering plate on the right side of the
gas-control block. The pilot flame
should be adjusted in such a way that
the pilot flame correctly surrounds the
thermocouple element and the pilot-
flame burner is burning. After
adjustment of the pilot flame, replace
the covering plate (see Fig. 9). Turning
clockwise will reduce the gas supply;
turning anticlockwise will increase the
gas supply.
AOS 0484
