Bosch Appliances NCT 685 C Regulation for LPG, Instructions for the installer, Rated, Burner

Models: NCT 685 C NCT 685 N NCT 685 B NCT 675 N NET 682 C NET 682 N

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5.2 Regulation for LPG

Instructions for the installer

5.2 Regulation 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

 

 

 

 

 

 

Burner

 

heating

 

 

LPG – G30/G31 28/37 mbar

 

 

 

capacity

 

 

 

 

 

 

 

 

(kW)

 

 

 

 

 

 

 

 

 

Nozzle

By-pass

Reduced

Flowrate

Flowrate

 

 

 

diameter

 

mm

flowrate

g/h G30

g/h G31

 

 

 

1/100 mm

 

1/100

(W)

 

 

Auxiliary (1)

 

1.05

48

30

33 (*)

380

76

75

Semi-rapid (2)

 

1.65

62

30

33 (*)

380

120

118

Average rapid (3)

 

2.55

76

37

40 (*)

750

185

182

Large rapid (4)

 

3.1

85

 

45

800

225

222

Triple crown (5)

 

3.9

95

 

65

1700

283

279

Triple crown (6)

 

3.3

87

 

65

1700

240

236

Double crown

internal (7)

0.8

42

26

33 (*)

380

58

57

 

external (7)

3.3

87

 

55

1200

240

236

(*) By-pass value for valveless appliances.

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Bosch Appliances NCT 685 C Regulation for LPG, Instructions for the installer, Rated, Burner, LPG - G30/G31 28/37 mbar