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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. Check whether the water-heater
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 (✸).
3. Remove the outer and inner door of
the combustion chamber.
4. Keep the control knob pushed-in and
press the piezo-ignitor several times
until the pilot burns (see Figure 6).
Figure 6 - Operation of the gas control
block
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. The size of the pilot flame
can be adjusted (see also “Pilot
adjustment”).
6. Subsequently remount the outer and
inner door; see “Mounting the inside
door”.
7. Turn the control button to the ‘ON’
( ) position.
8. Check the burner pressure setting
(see Fig. 9) and adjust if required
based on the technical information
(see section 1.4).
9. Place the temperature control button
in the correct position, preferably
position 4 (approximately 60°C). The
appliance will now operate fully
automatically.
AOS 0484