Checks And Adjustments; Chimney Sweep Function - Sime Brava Slim BF Manual De Instalación Y Mantenimiento

3.7

Checks and adjustments

3.7.1

Chimney sweep function

The chimney sweep function is used by the qualified maintenance
technician to check the gas pressure at the nozzles, detect
the combustion parameters and to measure the combustion
efficiency required by 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
2
– 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
– 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
88
1
a
3
– open the gas valve
– power the boiler by setting the main switch to "ON"
– press the button
mode l has been selected
– press and hold down the buttons
for approximately 10 seconds until the message "Hi" appears
on the display together with the flashing symbols
Fig. 33
– open one or more than one hot water tap
– press the button
power "Hi" and check that the gas pressure values on the
pressure gauges correspond to those indicated in the table
below
– press the button
power "Lo" and check that the gas pressure values on the
pressure gauges correspond to those indicated in the table
below. The message "Lo" will appear on the display together
with the flashing symbols
5
Fig. 34
6
7
ON
y for at least 1 second until "SUMMER"
< and > at the same time
> to make the boiler operate at maximum
< to make the boiler operate at minimum
l and n
EN
Fig. 35
Fig. 36
l and n