Specifications

Parts replacement
Instructions for installation and servicing ecoTEC 839592_13 69
9
1
3
2
4
Fig. 9.2 Dismantling fan with gas fitting
> Pull out the plug (4) from the gas valve.
> Pull out the plug (3) from the fan.
> Remove the three screws (2) on the burner module
(1).
> Remove the complete “gas valve/fan” unit.
5
Fig. 9.3 Gas fitting/fan screwed joint
> Remove both fixing screws (5) on the gas valve and
remove the fan from the gas valve.
> Replace the defective component.
b
Caution!
Risk of material damage from incorrect
installation!
The gas valve and fan may be damaged.
> Fit the gas valve and the fan in the same
position as before.
> Screw on the fan with the gas valve. Use new seals.
> Install the complete “gas valve/fan” unit in reverse
sequence.
> After completing the work, check for gas leaks and
perform a function check (see section 7.6).
9.4 Replacing expansion vessel
a
Danger!
Risk of personal injury and/or material
damage as a result of improper installation!
You need to follow the corresponding safety
instructions in order to safely replace the
component.
> Before replacing the component, comply
with the safety instructions in section 9.1.
> Disconnect the appliance from the mains as described
in Section 9.1, and close the service valve in the gas
supply pipe.
> Close the flow and return service valves and drain the
water from the boiler.
1
2
3
4
Fig. 9.4 Replacing expansion vessel
> Undo the nut (4) on the water pipe on the lower side
of the expansion vessel.
> Remove both screws (1) retaining plate (2) and
remove the retaining plate.