64
7.7
Checks and adjustments
After checking that the boiler is operating correctly, you must
take combustion readings as well as maximum and minimum
power readings, and check the combustion efficiency by activat-
ing the
chimney sweeper function
.
7.7.1
Chimney sweeper function
The chimney sweeper function is used by the qualified mainte-
nance technician to check the gas pressure, detect the combus-
tion parameters and measure the combustion efficiency when
required by the legislation in force.
This function lasts 15 minutes and is activated by proceeding
as follows:
– if the panel (2) has not already been removed, remove the
two screws (1), pull the front panel (2) forwards and release it
from the top by lifting it
1
2
Fig. 134
– use the tabs (3) to release the control panel (4)
– bring the panel forwards and downwards until it is horizontal
4
3
3
Fig. 135
– close the gas valve
– loosen the screw of the "mains pressure" point (5) and con-
nect a pressure gauge
5
7
6
Fig. 136
– open the gas valve
– power the boiler by setting the main switch to "ON"
ON
Fig. 137
Leave the appliance to stabilise, then:
– follow the procedure described in the section “
” up to “accessing the submenus”
– turn the
encoder to select the
“Chimney sweeper”
(Chimney sweeper) submenu
– press the
click
encoder to confirm the selected submenu
and access the relevant data display
TECHNICAL
Plant solution
[...]
Technician param.
[...]
Chimney sweeper
[...]
Info
[...]
Fig. 138
