9
Injectors replacement
• Remove the pan supports.
• Remove the burner's caps and crowns.
• With a socket spanner 7 unscrew and remove the
injectors (Fig. 7), and replace them with the ones
required for the type of gas in use (see Table "
Injectors
").
• Reassemble the parts, following the same procedure
backwards.
• Replace the rating label (placed near the gas supply
pipe) with the relevant one for the new type of gas
supply. You can find this label in the package of the
injectors supplied with the appliance.
Should the feeding gas pressure be different or variable
compared with the required pressure, an appropriate
pressure adjuster must be fitted on the gas supply pipe,
in compliance with the rules in force.
Fig. 7
Adjustment of minimum level
To adjust the minimum level of the burners, proceed as
follows:
• Light the burner.
• Turn the knob on the minimum position.
• Remove the knob.
• With a thin screwdriver, adjust the by-pass screw (see
Fig. 8). If changing from natural gas 20 mbar to liquid
gas, completely tighten the adjustment screw until a
small regular flame is obtained. If changing from liquid
gas to natural gas 20 mbar, undo the by-pass screw
about 1/2 of a turn. If changing from natural gas 20 mbar
to natural gas 13 mbar undo the by-pass screw about
1/4 of a turn. If changing from liquid gas to natural gas
13 mbar, undo the by-pass screw about 3/4 of a turn.
• Finally check the flame does not go out when quickly
turning the knob from the maximum position to the
minimum position.
This procedure can easily be carried out, anyhow the hob
has been positioned or built in the working top.
Burner
Ø By-pass
in 1/100
of mm
Auxiliary
28
Semi-rapid
32
Rapid
40
Ultra rapid
56
Table: By-pass diameters
Table: Injectors
Fig. 8
By-pass screw
TYPE
TYPE OF
INJECTORS
NOMINAL
REDUCED
NOMINAL
NOMINAL
OF GAS
BURNER
MARKS
POWER
POWER
POWER
PRESSURE
1/100 mm
INPUT
k W
mbar
k W
m3/h
g/h
Ultra-rapid (triple crown)
146
4,00
1,20
0,381
-
Rapid (large)
113
2,80
0,65
0,267
-
Semi-rapid (medium)
96
2,00
0,45
0,190
-
20
Auxiliary (small)
70
1,00
0,33
0,095
-
Ultra-rapid (triple crown)
98
4,00
1,20
-
288
Rapid (large)
86
2,80
0,65
-
202
Semi-rapid (medium)
71
2,00
0,45
-
144
28-30/37
Auxiliary (small)
50
1,00
0,33
-
72
Ultra-rapid (triple crown)
147
3,00
1,20
0,318
-
Rapid (large)
108
2,13
0,52
0,210
-
Semi-rapid (medium)
105
1,72
0,42
0,186
-
13*
Auxiliary (small)
80
0,90
0,30
0,085
-
NATURAL
GAS
G 20
LPG
(Buthane/
Propane)
Adaptation to different types of gas
!
!
!
!
!
!
!
!
!
!
NATURAL
GAS
G 20
*
for Russia only.
