35
9.6
Checks after commissioning
9.6.1
Chimney sweeper function
The chimney sweeper function is used by the qualified mainte-
nance technician to check the mains gas pressure, detect the
combustion parameters and to measure the combustion effi-
ciency required by legislation in force.
This function lasts 15 minutes and is activated by proceeding
as follows:
– disassemble the smoke outlet duct of the
Brava Slim HE 20 R e
and
Brava Slim HE 40 R e
, if not already removed
– 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
2
1
Fig. 43
– 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
3
a
b
5
4
Fig. 44
– close the gas valve
– loosen the screw of the "mains pressure" point (6) and con-
nect a pressure gauge
6
Fig. 45
– open the gas valve
– power the boiler by setting the main switch to "ON"
ON
Fig. 46
– press the button
y
for at least 1 second until "SUMMER"
mode
l
has been selected
– press and hold down the buttons
<
and
>
at the same time
for approximately 10 seconds until the message “Hi” appears
on the display together with the flashing symbols
l
and
n
– take the combustion data reading
– press the button
y
to exit the "Chimney sweeper Proce-
dure”. The boiler water delivery temperature will appear on
the display
– disconnect the pressure gauge, carefully close the pressure
point (6), put the control panel back to the original position
and refit the front panel (2).
Gas supply pressure
Type of gas
NATURAL GAS
UNIVERSAL LPG
Pressure (mbar/kPa)
11.3/1.13
27.5/2.75
Содержание 8112265
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