Smeg 3EM-374N, 3EM-375N, 3EM-374B, 3EM-375B Regulation for natural gas, Regulation of primary air

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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.

 

 

 

 

 

 

 

Rated heating

 

 

 

 

 

 

Burner

 

 

 

 

capacity

 

Natural gas – G20 20 mbar

 

 

 

 

 

 

 

 

(kW)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nozzle diameter

 

Reduced flowrate

 

 

 

 

 

 

 

 

 

 

1/100 mm

 

(W)

 

 

 

 

 

 

 

 

 

 

 

 

 

Auxiliary (1)

 

 

 

 

1.05

 

73

 

380

 

 

 

 

 

 

 

 

 

 

 

 

 

Semi-rapid (2)

 

 

 

1.65

 

92

 

380

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Average rapid (3)

 

 

2.55

 

115

 

750

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Large rapid (4)

 

 

3.1

 

126

 

800

 

 

 

 

 

 

 

 

 

 

 

 

 

Triple crown (5)

 

 

3.9

 

140

 

1400

 

 

 

 

 

 

 

 

 

 

 

 

 

Triple crown (6)

 

 

 

3.3

 

130

 

1200

 

 

 

 

 

 

 

 

 

 

 

 

 

Double crown

 

internal (7)

 

0.8

 

67

 

380

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

external (7)

 

3.3

 

130

 

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

 

1.0

 

 

 

 

 

 

 

 

 

 

 

Semi-rapid (2)

 

 

1.5

 

1.5

 

 

 

 

 

 

 

 

 

 

 

Average rapid (3)

 

 

1.0

 

1.5

 

 

 

 

 

 

 

 

 

 

 

Large rapid (4)

 

 

2.5

 

2.5

 

 

 

 

 

 

 

 

 

 

 

Triple crown (5)

 

 

2.0

 

3.5

 

 

 

 

 

 

 

 

 

 

 

Triple crown (6)

 

 

2.0

 

2.5

 

 

 

 

 

 

 

 

 

 

Double crown

 

internal (7)

 

9.0

 

1.0

 

 

 

 

 

 

 

 

 

 

 

external (7)

 

1.5

 

8.0

To identify the burners on your hob, refer to the drawings in point “6.3 Arrangement of burners on hob “

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Contents Contents Instructions for Safe and Proper USE IntroductionPlate on the Casing Must not be Removed Positioning of HOB Instructions for the installerInstructions for the installer Plate for any reason Electrical ConnectionGAS Connection Discharge of combustion products Connection to LPGVentilation of rooms Removing the hob Adaptation to Different Types of GASRated BurnerheatingLPG G30/G31 28/37 mbar capacity Regulation for LPGRegulation of primary air Regulation for natural gasRegulation of minimum for LPG Final OperationsRegulation of minimum for natural gas Lubrication of gas taps Arrangement of burners on hobInsructions for the user Using the HOBIgnition of the burners with safety device Practical advice for using the burnersDiameter of containers Using a griddle plateCleaning of cooking hob components Cleaning and MaintenanceCleaning

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