1.
Undo M 10 nut
A
on lever
B
of
rotary damper
C
.
2.
Adjust the lever until all pulsating
noises have ceased (the lever mir-
rors the damper position).
3.
Lock the rotary damper with M 10
nut.
4.
Readjust the burner, if required.
Shutting down the heating system
1.
Switch OFF the main isolator or the
power supply and safeguard
against unauthorised reconnection.
2.
Pull plug-in connectors
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 screws on the boiler door
and open the door.
!
Please note
Scratches inside the combus-
tion chamber can lead to corro-
sion.
Never put tools or other objects
into the combustion chamber.
Separating the neutralising system from the boiler and con-
necting the drain hose
1.
Separate hose or pipe
A
to the
neutralising system from the flue
gas collector or siphon.
2.
Remove the siphon (if installed)
from the condensate drain.
Further details regarding the individual steps
(cont.)
9
Commissioning, inspection, maintenance
56
92
405
GB
Summary of Contents for VITOCROSSAL 300
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