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Instructions for the Installer
5.2
Adjusting for bottled gas
Undo the screw A and push the support B fully down. Remove the nozzle C with a
spanner and fit the suitable one following the instructions in the tables referring to the
type of gas to be used. The nozzle must not be tightened with a torque of more than 3
Nm. Return the support B to its original position, so that the nozzle C is perfectly
covered.
Regulate the air flow by moving the Venturi pipe D until the distance "X" stated in point
"5.5 Adjusting the primary air flow" is obtained and secure it with the screw A. When the
adjustments are complete, restore the seals with wax or an equivalent material.
Burner
Semi rapid (1)
Rapid (2)
Ultra-Rapid (3)
5.3
Adjusting for town gas
Proceed as described in point "5.2 Adjusting for bottled gas" but select the nozzles and adjust
the primary air flow for town gas, as indicated in the table below and in point "5.4 Adjusting
the primary air flow"..
Burner
Semi rapid (1)
Rapid (2)
Ultra-Rapid (3)
5.4
Adjusting for natural gas
The appliance is tested with G20 (2H) natural gas at the pressure of 20 mbar. To return the
appliance to the condition required to use this type of gas, proceed as described in point "5.2
Adjusting for bottled gas" but select the nozzles and adjust the primary air flow for natural gas,
as indicated in the table below and in point "5.5 Adjusting the primary air flow".
Burner
Semi rapid (1)
Rapid (2)
Ultra-Rapid (3)
Nominal
heat
Bottled gas – G30/G31 30/37 mbar
capacity
(kW)
Nozzle
By-pass
diameter
1/100 mm
1.7
62
2.9
80
4.2
98
Nominal
heat
capacity
(kW)
Nozzle diameter
1.7
2.9
4.2
Nominal
heat
capacity
(kW)
Nozzle diameter
1.7
2.9
4.2
Reduced
Capacity
mm
heat
g/h G30
1/100
capacity
(W)
33
500
124
50
1050
211
65
1600
305
Town gas – G110 8 mbar
Reduced heat capacity
1/100 mm
165
230
300
Town gas – G20 20 mbar
Reduced heat capacity
1/100 mm
92
123
145
Capacity
g/h G31
121
207
300
(W)
500
1050
1100
(W)
500
1050
1400
11
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