Elba P70 Mode D'emploi page 29

GB TABLE FOR THE CHOICE OF THE INJECTORS
Gas type:
G20
Auxiliary (A)
Semi-rapid (SR)
Rapid (R)
Triple ring (TRC)
Fish (PS)
Gas type:
G30/G31
Auxiliary (A)
Semi-rapid (SR)
Rapid (R)
Triple ring (TRC)
Fish (PS)
Fig. 5.3
Fig. 5.4
Fig. 5.5
NOMINAL
BURNERS POWER
(HS - kW)
NOMINAL
BURNERS POWER
(HS - kW)
OPERATIONS TO BE PERFORMED WHEN SUBSTITUTING
THE INJECTORS
J
To replace the injectors:
Remove the gratings, the burner covers and the knobs;
Using a wrench substitute the nozzle injectors "J" (Fig. 5.3 - 5.4) with those most
suitable for the kind of gas for which it is to be used.
The burner are conceived in such a way so as not to require the regulation of the
primary air.
REGULATING THE BURNER MINIMUM SETTING
When changing from one type of gas to another, the minimum tap output must also be
correct, considering that in this position the flame must be about 4 mm long and must
remain lit even when the knob is turned sharply from the maximum to the minimum posi-
tion.
The adjustment is performed with the burner lit, as follows:
Turn the knob to the minimum position.
Remove the tap knob.
J
On gas valves provided with adjustment screw in the centre of the shaft (fig. 5.5):
Using a screwdriver with max. diameter 3 mm, turn the screw inside the tap until the
correct setting is obtained.
On gas valves provided with adjustment screw on the valve body (fig. 5.6):
Turn the screw "A" to the correct setting with a screwdriver.
In models with a gas-lighter incorporated into the knob, turn screw "A" via the hole in
the microswitch.
For G 30/G 31 gas, tighten the adjustment screw completely.
Fig. 5.6
REDUCED
POWER
(HS - kW)
1,00 0,30
1,75 0,45
3,00 0,75
3,50 1,50
1,75 0,75
REDUCED
POWER
(HS - kW)
1,00 0,30
1,75 0,45
3,00 0,75
3,50 1,50
1,75 0,75
A
II
Cat:
Ø INJECTEUR
PRESSURE
(1/100 mm)
72 (X)
97 (Z)
115 (Y)
135 (T)
94 (Y)
Ø INJECTEUR
PRESSURE
(1/100 mm)
50
65
85 28-30/37
95
68
LUBRICATING THE GAS
TAPS
If one of the gas taps becomes difficult to
turn, dismantle it, thoroughly clean with
petrol and apply special high-temperature
grease.
These operations must be performed by a
specialised engineer.
2H3+
GAS
(mbar)
20
GAS
(mbar)
29