Smeg PX140 - Manual (Page 9)

Instructions for the Installer
27
5.3 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 “ 5.4 Adjusting the
primary air flow”.
Burner
Rated heat
Capacity (kW)
Natural gas - G20 20 mbar
Nozzle diameter Reduced heat capacity
1/100 mm (W)
Auxiliary 1.05 73 400
Semi rapid 1.7 92 450
Rapid 3.0 123 1050
Ultra Rapid 4.2 150 1400
5.4 Adjusting the primary air flow
Refers to the gap “X” in mm.
BURNER
G20
20 mbar
G30/G31
30/37 mbar
0.5 3 Auxiliary
Semi rapid 0.5 2
2 3.5 Rapid
Ultra Rapid 4 open
To identify the burners on your hob, refer to the drawings in point “ 5.8 Hob burner
layout”.