Regulation of burners, Adapting to different types of gas, Primary air adjustment – Bertazzoni H304GGVVI User Manual
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Models H304GGV(NE,CR,VI) [M7S0GTV4(D,L,N) (2 or 5)A]
Adapting to different types of gas
CAUTION: save the orifices removed from the appliance for future use
Burner
Position
Injector
Gas
Pressure
Max Rate
Min Rate
By-pass
diam. [mm.]
Type
[i.w.c.]
[BTU/h]
[W]
[BTU/h]
[W]
diam. [mm]
Auxiliary
Rear L
0,90
NG
4”
3400
996
900
264
Regulated
0,54
LP
(Propane)
11”
3400
996
900
264
0,29
Semi-Rapid
Front R
1,18
NG
4”
6100
1787
1500
439
Regulated
0,70
LP
(Propane)
11”
6100
1787
1500
439
0,36
Rapid
Rear R
1,55
NG
4”
10400
3047
2500
732
Regulated
0,92
LP
(Propane)
11”
10400
3047
2500
732
0,47
Front L Inner
0,80
NG
4”
2800
820
900
264
Regulated
Dual Burner
0,49
LP
(Propane)
11”
2800
820
900
264
0,29
Front L Outer
N°2 x 1,15
NG
4”
12000
3516
4500
1318
Regulated
N°2 x 0,70
LP (Propane)
11”
12000
3516
4500
1318
0,65
Oven
Oven 1,85 NG 4”
14500
4248
3500
1025
Regulated
downside 1,10
LP
(Propane)
11”
14500
4248
3500
1025 0,54
Broiler
Oven
1,70
NG
4”
12000
3516
Only Max
Only Max
No by-pass
upside
0,98
LP (Propane)
11”
12000
3516
Only Max
Only Max
No by-pass
REGULATION OF BURNERS
Primary air adjustment:
Broiler burner adjustment: to adjust the broiler burner loosen screw P and adjust the position X of the Venturi cone
according to the measurements indicated in table 4.
TABLE N°4: Burner primary air regulation (indicative)
Burner
Type of gas
Broiler
Inches
(mm)
NG (Natural Gas)
fully open
LP (Propane Gas)
fully open
Work surface burner adjustment: follow the instructions below to adjust the work surface burner minimum:
1) Light the burner and set the knob to the MINIMUM position (small flame).
2) Remove the knob of the valve that is press fit on the rod of that valve.
3) The cooker is equipped with safety valves, use a small slotted screwdriver the choke valve located on the valve body
and turn the choke screw to the right or left until the burner flame is adjusted to minimum
4) Make sure that the flame does not go out when switching quickly from the MAXIMUM to the MINIMUM position.
Oven burner adjustment: follow the instructions below to adjust the minimum:
1) Light the burner setting the knob to the MAXIMUM position.
2) Close the oven door and operate the oven for at least 10 minutes.
3) Set the knob to the MINIMUM position and then remove it.
4) With a slotted screwdriver turn the choking screw (by-pass screw at the left side of the thermostat bar) and, while
observing the flame at the same time through the cooker porthole, evaluate the consistency of the flame so it remains on
when switching quickly from the MINIMUM to the MAXIMUM position.
WARNING: The above-mentioned adjustment should be made only for natural gas, while for operation with
liquid gas the screw must be locked at the end in a clockwise direction. The broiler burner always
operates at maximum and therefore no minimum adjustment is required.