DeDietrich G25 Manual de Serviço descarregar pdf (Página 73)

15/02/2011 - 300014279-001-J DTG(E)130 - 35/45/65/90/115 Eco.NOxPlus

15. Maintenance

 Operational mode

When the boiler is fouled, carry out the following maintenance

operations:

- Open the heating body,

- Clean the burner,

- Clean the heat exchanger using the tool provided,

- Clean the fan,

- Clean the siphon,

- Close the heating body,

- Measure the combustion.



Opening and closing the heating body

` Remove the front panel of the casing.

` Disconnect the following electrical connections:

- Ionization probe + Earth cable



- Fan



- Gas block

.

` Unscrew the gas valve joint .

` Take out the air inlet silencer .

` Unscrew the 13 holding nuts on the inspection hatch .



There is a 230 V electricity supply at the back of the fan

which must be disconnected (Marker )



If the inspection hatch seal remains stuck, it is necessary

to replace it

` Remove the inspection hatch, fan, burner and gas block unit.

- Tilt the top of the unit until the burner comes out completely,

- Then remove the inspection hatch, the fan and the gas valve unit.

` Carry out the cleaning operation.

` Connect the rear connector before putting the hatch back in

place.

` Close the heating body following the above procedure in

reverse order.



Cleaning the burner

` Remove the 3 screws and the 3 holding lugs on the burner .

` Remove the burner.

` Carry out a visual check on the general appearance of the

burner.

` Carefully clean the burner with compressed air.

` Put the burner and its fastenings back in place.

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