Instructions for the installer

5.2Regulation for LPG

Loosen screw A and push support B all the way. Use a double head wrench to remove nozzle C and assemble the suitable one, following the instructions indicated in the reference charts, with respect to the type of gas to use. The screwing torque of the nozzle should never exceed 3 Nm. Reposition support B so that nozzle C is covered perfectly.

Move the Venturi tube D to regulate the air flow until distance “X” is reached indicated in the chart in paragraph “5.4 Regulation of primary air” and then secure the tube by means of screw A. After the regulations have been carried out, restore the seals with sealing wax or equivalent material.

Rated

Burnerheating capacity

LPG – G30/G31 28/37 mbar

Nozzle

 

 

Reduced

 

 

 

diameter

 

By-pass

Flowrate

 

Flowrate

 

flowrate

 

1/100

 

1/100 mm

g/h G30

 

g/h G31

 

(W)

 

mm

 

 

 

 

 

 

 

 

 

 

 

Auxiliary

 

 

1.05

 

 

 

 

Semirapid

1.65

 

 

 

 

 

Rapid

 

2.55

 

 

 

 

Rapid large

3.1

 

 

 

 

Ultra rapid (5)

3.3

 

 

 

 

 

Double

 

Internal

 

0.8

crown

 

 

 

 

 

External

3.3

 

 

 

 

Fish pan

 

2

48

 

30 (1)

380

 

 

 

380

62

30 (1)

 

 

 

650

76

37 (2)

 

 

 

750

85

43

 

 

 

1200

87

55 (4)

 

 

 

380

42

30 (1)

 

 

 

1200

87

55 (4)

 

 

 

750

67

43 (3)

7675

120 118

185 182

225 221

240236

58 57

240236

145143

(1)= 33 for valveless appliances. (2)= 40 for valveless appliances. (3)= 45 for valveless appliances. (4)= 65 for valveless appliances.

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Smeg SNL574GH manual Regulation for LPG, LPG G30/G31 28/37 mbar