Beretta 20141085, Installation Manual

Page: 67 / 112

67
SUPPLY GAS PRESSURE CHECK
- Turn the main system switch "off"
- Access the module and identify the unit you want to check (it is
not necessary to do it for all the units)
- Loosen by about two turns the pressure inlet screw (1) up-
stream of the gas valve and connect the pressure gauge
1
1
- Power the thermal module by setting the system's and the ap-
pliance's master switches to "On".
- Press the MENU key, select "System test" and press
●
to con-
firm.
“
Menu
”
“
Domestic Hot Water (DHW)
”
“
Information
”
“
Settings
”
“
System Test
”
- select the unit between "Master" and "Dep1 ... N"
“
System Test
”
“
Boiler
” “
Managing
”
- select "Max. power" with the ▲ / ▼ keys and press ● to con-
firm. The fan starts turning at its maximum speed (which can
vary based on the model).
“
System Test
”
“
Test State
” “
High Power
”
“
Fan Speed
”
0
“
rpm
”
“
Ionisation
”
0.0 μA
DESCRIPTION G20 G30 G31
Wobbe index 45,7 80,6 70,7 MJ/m
3
Nominal supply pressure 20 28-30 37 mbar
After the checks:
- select "OFF" with the
▲
/
▼
keys and press
●
to confirm.
- Disconnect the pressure gauge and tighten again the pres-
sure test point screw (1) upstream from the gas valve.
“
System Test
”
“
Test State
” “
Off
”
“
Fan Speed
”
0
“
rpm
”
“
Ionisation
”
0.0 μA
- After completing the operations, close the module doors.