
MAINTENANCE INSTRUCTIONS
26
P
ARAMETER
10
–
M
INIMUM CENTRAL HEATING OUTPUT
Before switching on the boiler to adjust the setting, insert a
pressure gauge in the pressure take-off point ‘
B
’ on the gas
valve (see fig. 1).
6. Open the parameters menu and select parameter P10 -
The pressure gauge will indicate the gas pressure. If this
pressure value is different to that on the rating plate of the
boiler (see ‘Gas pressure adjustment table’ 5.4) use buttons
‘
’ and ‘
’ to modify the value of the parameter. The
range of settings is 00 – 80.
7. Press and release button ‘S’ to confirm. The parameter
number P10 will appear on the display.
8. Switch off the appliance and switch it back on again to
render the new parameter operative.
P
ARAMETER
11
–
M
AXIMUM
C
ENTRAL
H
EATING GAS PRESSURE
(N
ATURAL GAS
0.75
K
P
A
/
U
NIVERSAL
LPG
2.50
K
P
A
)
6. Open the parameters menu and select parameter P11.
Adjust the value of the parameter to 99.
7. Press button ‘S’ and release it to confirm. The value P11
will appear on the display.
8. Switch off the appliance and switch it back on again to
render the new parameter operative.
9. Press button Press button ‘S’ for 7 seconds until the
number ‘07’ flashes on the display (chimney sweep function).
In this way, the boiler will run at maximum heating power for
15 minutes. The pressure gauge will indicate the gas
pressure. If this pressure value is different to that on the
rating plate of the boiler (see ‘Gas pressure adjustment table’
5.4) adjust the gas regulator as follows:
a.
remove aluminium plug ‘
A’
(fig. 1) and use a screwdriver
to the rotate the plastic screw to regulate the maximum
gas pressure;
b.
replace aluminium plug ‘
A’
on the gas valve;
c.
switch off the boiler. Make sure that the pressure gauge is
removed and that there are no gas leaks.
6. To set the maximum heating power, then open the
parameters menu and adjust parameter P11 from ‘99’ to the
required value according to the Pressure-Power correlation
diagrams (see ‘Gas pressure adjustment table’ 5.4).
7. Press and release button ‘S’ to confirm. The parameter
number P11 will appear on the display.
8. Switch off the appliance and switch it back on again to
render the new parameter operative.
66
24
S
S
S
S
P 10
P 11