1
91.7.1 - GB/IE
InstructIons pErtaInInG to thE InstaLLEr
table 2
table 2.1
Counter clockwise
Model
turns of screw
(V)
wH 50
3
wH 60
3
3
/
4
wH 70
4
3
/
4
table 3
table 1
Gas consumption at 15 °C
1013 mbar
wH 50
wH 60
wH 70
gas G20 - 2H - 20 mbar
PCI (MJ/m
3
) NET
34.02
34.02
34.02
Consumption at max. heat output (m
3
/h)
4.91
6.00
7.08
Consumption at min. heat output (m
3
/h)
1.58
1.69
2.11
Gas nozzle (mm)
8.5
15
---
Gas consumption at 15 °C
1013 mbar
wH 50
wH 60
wH 70
gas G31 - 3P - 37 mbar
PCI (MJ/Kg) NET
46.34
46.34
46.34
Consumption at max. heat output (Kg/h)
3.60
4.40
5.20
Consumption at min. heat output (Kg/h)
1.16
1.24
1.55
Gas nozzle (mm)
8.5
15
---
G20 - 2H - 20 mbar
G31 - 3P - 37 mbar
CO
2
max. heat output
8.7 %
10 %
CO
2
min. heat output
8.4 %
9.8 %
IMportant:
in the case of conversion from natural gas to propane (LPG), the following operations must be
performed before calibrating the gas valve as illustrated previously:
• Turn adjuster screw (V) on the gas valve through the number of complete revolutions specified in table 3.
