Bertazzoni her series, Installation, Maintenance & Use Instructions

Page: 9 / 44

9
OVEN BURNER ADJUSTMENT ONLY MODEL 60X60
Only model 60x60 1)Primary air adjustment:
Oven burner adjustment : follow the instructions below to adjust the primary air for
the over burner:
1) Remove the oven bottom.
2) Loosen the screw
P and adjust the position X of the Venturi cone (Fig.9)
according to the measurements.
Fig 9
Burner primary air regulation (indicative)
BURNER
Type of gas Oven (mm)
M6
Natural G20 fully open
Butane G30 fully open
Propane G31 fully open
WARNING: After completing the above-mentioned replacements, adjust the
burners, as described in the paragraph below. Seal any adjustment and pre-
adjustment devices. Replace the existing rating plate with a new one corresponding
to the new gas adjustment.
This rating plate is contained in the spare nozzle
bag.
Adaption to various types of gas APPLIANCE CATEGORY:
II
2H3+
Burner Types of Gas Pressure Nozzle
Diameter
Rater Capacity Reduced
Capacity
by-pass
Diameter
mbar 1/100 mm. g/h l/h kw kcal/h kw kcal/h 1/100 mm.
Natural G20 20 77 - 95 1 860 0,48 413 34 reg.
Auxiliary Butane G30 30 50 73 - 1 860 0,48 413 34
Propane G31 37 50 71 - 1 860 0,48 413 34
Natural G20 20 117 - 167 1,75 1505 0,6 516 36 reg.
Semi-Rapid Butane G30 30 66 127 - 1,75 1505 0,6 516 36
Propane G31 37 66 125 - 1,75 1505 0,6 516 36
Natural G20 20 129 - 286 3 2580 1,05 903 52 reg.
Rapid Butane G30 30 87 218 - 3 2580 1,05 903 52
Propane G31 37 87 214 - 3 2580 1,05 903 52
Natural G20 20
Int 70
- 476 5,0 4300 0,48 413
Int 34 reg.
Ext 2 x 110 Ext 65 reg
Dual
Butane G30 30
Int 46
334 - 4,6 3956 0,48 413
Int 34
Ext 2 x 69 Ext 65
Propane G31 37
Int 46
328 - 4,6 3956 0,48 413
Int 34
Ext 2 x 69 Ext 65
Natural G20 20 150 - 429 4,5 3870 2 1720 70 reg.
Oven Butane G30 30 95 327 - 4,5 3870 2 1720 70
90X60 Propane G31 37 95 321 - 4,5 3870 2 1720 70
Natural G20 20 125 - 286 3 2580 1 860 48
Oven Butane G30 30 85 218 - 3 2580 1 860 48
60X60 Propane G31 37 85 214 - 3 2580 1 860 48
Check correct operation of the ignition system and operation of burners individually
and in combination. Burner flames should be clear blue, with no yellow tipping. If the
burners show any abnormality check that burner heads are correctly located.
Note: These burners have no aeration adjustment.