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– remove the screws (3) securing the control panel (4)
– move the panel (4) upwards (a) but keeping it in the side
guides (5) to the end of travel
– bring it forwards and down (b) until it is horizontal
4
b
3
– close the gas valve
– loosen the "nozzle pressure" point (6) and the screw of the
"supply pressure" point (7) and connect each one to a pressure
gauge
6
– open the gas valve
– power the boiler by setting the main switch to "ON"
ON
To activate the "chimney sweep function":
– turn dial
– continually turn dial
– open one or more than one hot water tap
– turn dial
a
5
Fig. 53
– turn dial
7
Fig. 54
– to exit "Chimney sweep Procedure" move dial
Fig. 55
– close the taps opened previously and check that the appliance
– disconnect the pressure gauges, carefully close the pressure
D
to select the
z
symbol ("CHIMNEY SWEEP")
t
to the minimum setpoint value and
immediately afterwards to the maximum setpoint value. The
display will show symbols
8
t
to the maximum setpoint value to make the boiler
operate at maximum power "Hi" and check that the gas
pressure values on the pressure gauges correspond to those
given in the tables shown below. If they do not, carry out the
partial "CALIBRATING GAS VALVE" procedure (MAnu)
OFF
RESET
t
to the minimum setpoint value to make the boiler
operate at minimum power "Lo" and check that the gas
pressure values on the pressure gauges correspond to those
given in the tables shown below. If they do not, carry out the
manual "CALIBRATING GAS VALVE" procedure (MAnu)
OFF
RESET
anticlockwise from the
z
"CHIMNEY SWEEP" position to the
maximum setpoint value, or wait for the timer to end (~ 15
min). The display will show the DHW temperature
shuts down
points (6) and (7), put the control panel back to the original
position and refit the front panel (2).
and
c
Fig. 56
Fig. 57
D
Fig. 58
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