11
A
D
B
E
C
Ø = Ø
B
-10
Fig. 3
A
Boiler door
B
Flame tube
C
Thermal insulation mat
D
Burner plate
E
Thermal insulation block
Check the thermal insulation mat at the flame tube.
The blue side of the thermal insulation mat has to face
the combustion chamber. It must be in close contact
with the flame tube.
Checking all connections and the sensor well on the heating water side for
tightness
Danger
There is a risk of injury when working on pres-
surised components.
Only open the connections on the heating water
side after the boiler has been depressurised.
If draining with a suction pump, only drain the
boiler with the air vent valve open.
Commissioning, inspection, maintenance
Checking gaskets and thermal insulation…
(cont.)
5692910
