Unit installation

20
Shutting down the system
1. Switch OFF the mains isolator or the
power supply and safeguard against
unauthorised reconnection.
2.
Pull plug-in connector fA and lÖ
from the burner.
3. Close the gas shut-off valve.
Opening the boiler door
1. Remove the gas supply pipe.
2. Undo the four screws on the boiler
door and open the door.
!
Please note
Scratches inside the combustion
chamber can lead to corrosion.
Never put tools or other objects
into the combustion chamber.
Separating the neutralising system (if installed) from the boiler
and connecting the drain hose
C
BA
1.
Separate hose A to the neutralising
system from siphon
B
.
2.
Connect drain or cleaning hose C to
the siphon and run it to the drain.
Cleaning the combustion chamber and heating surfaces
Thoroughly clean the combustion cham-
ber and heating surfaces with a water
jet.
!
Please note
Scratches on parts that are in
contact with flue gas can lead to
corrosion.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5692 907 GB