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20
8.5 To Light the Boiler (fig. 21)
a. Open controls panel door.
b. Switch on electricity supply.
c. Adjust room thermostat and all external controls to «ON». Check operation of pump.
d. Turn the boiler thermostat to maximum. Fan will run (A waiting time of max 3 minutes before fan will
run is possible!), and main burner will light.
e. Temporarily turn off by switching off electricity supply.
Important Note: If the burner stops for C.H. only after a waiting time of 3 minutes will the boiler light again!
fig. 21
P
+
-
P
AUTO
R
O
V
E
R
R
ID
E
12:31
x
x
4
AUTO
Flame viewing
opening
C.H. pressure
gauge
C.H. boiler
thermostat
Fault diagnostic lights
Domestic hot water thermostat
Time clock (if fitted)
Flame
failure
reset knob
C.H./D.H.W. selector switch