47
INST
ALLER Section
(en)
7219840.02 (1-03/16)
16. GAS VALVE
This appliance does not require any mechanical adjustment on the valve. The system ensures electronic
auto-adaptation.
Pi
Gas supply pressure tap
Pout
Gas at burner pressure tap
16.1 GAS CONVERSION METHODS
Only an Authorised Technical Assistance Service can convert boiler operation from
G20
to
G31
gas or vice-versa. To calibrate, set
the board parameters (fan rpm - see
TABLE 1
) as indicated below:
Access
MENU 2
as described in section
PARAMETERS SETTING.
•
B
Sitherm Pro
B B
2720
B.
•
B
On
B.
•
B
2721
B.
•
B
Natual gas or LPG
B .
•
B
2720
B.
•
B
OFF
B.
•
C
Boiler Settings
B B
2441
B.
•
B
B.
•
C
Burner Control
B.
•
B
9524
B.
•
B
B.
•
B
9529
B.
•
B
B.
When the gas change is completed the boiler data plate must be amended to indicate the new gas data.
TABLE 1: FAN SPEED PARAMETERS
PARAMETERS - rpm
2441
9529
9524
Boiler
model
Pmax heating
Pmax DHW
Pmin
G20
G31
G20
G31
G20
G31
33
5200
5100
7100
7000
1000
1250
24
4700
4400
6800
6500
1000
1500
Содержание NUVOLA PLATINUM +
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