Instructions for the installer

5.3 Regulation for natural gas

The hob has been inspected for G20 (2H) natural gas at a pressure of 20 mbar. To allow the unit to work with this type of gas, perform the same operations described in paragraph “5.2 Regulation for LPG”, but choose the nozzles and regulate the primary air for natural gas, as shown in the following table and in paragraph “5.4 Regulation of primary air”. After the regulations have been carried out, restore the seals with sealing wax or equivalent material.

Burner

 

 

 

 

Auxiliary (1)

 

 

 

 

 

 

Triple crown (2)

 

 

 

 

 

 

Double crown

 

internal (3)

 

 

 

 

 

 

 

external (3)

 

Rated heating

 

 

 

 

capacity

 

Natural gas – G20 20 mbar

(kW)

 

 

 

 

 

 

 

 

 

 

 

Nozzle diameter

 

Reduced flowrate

 

 

1/100 mm

 

(W)

 

 

 

1.05

 

73

 

380

 

 

 

3.3

 

130

 

1200

 

 

 

0.8

 

115

 

380

 

 

 

3.3

 

250

 

1200

5.4Regulation of primary air

Referred to distance “X” in mm.

 

BURNER

 

 

G20

 

G30/G31

 

 

 

 

 

 

20 mbar

 

28/37 mbar

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Auxiliary (1)

 

 

1.5

 

2

 

 

 

 

 

 

 

 

 

Triple crown (2)

 

 

1.5

 

3

 

 

 

 

 

 

 

 

 

Double crown

 

internal (3)

 

8.5

 

9

 

 

 

 

 

 

 

 

 

 

 

external (3)

 

1

 

9

 

27

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Smeg ER12150EU, ER12550EU, ER12150PP, ER12150NL, ER12550NL manual Regulation for natural gas, Regulation of primary air