9
( 9 ) ADJUSTMENT FOR OPERATE WITH OTHER TYPES OF GAS
BEFORE ADJUSTING CHECK THE GAS CATEGORY OF THE APPLIANCE.
If the appliance has category I2.. it will be supplied with pressure regulator. In this case NO CHANGES
ARE ALLOWED.
If the appliance has gas category II.. (it is not supplied with pressure regulator) it can be regulated for the
transformation from natural gas to LPG and vice versa. To do this follow the instructions:
change the injectors of the main burners and of the pilot flame, regulate the reduced range (see chart 2)
and regulate the primary air of the main burners.
All the injectors necessary for the adjustment are supplied in a bag together with the appliance.
The injectors of the burner are marked in hundredths of mm, while those of the pilot flame have a reference
number.
( 9-a ) Replacement of the injectors and regulations
To reach the main injectors remove the drawers and the plate under the drawer.
To reach the pilot, you must follow this procedure
• remove the terminal from the stack, detail (Fig. 2)
• remove the front from the stack, detail (Fig. 2)
• remove the hack
• extract the water collection drawer, detail (Fig. 4)
• extract the bottom plate, detail (Fig. 4)
• remove the knob and extract the piezoelectric device, detail. (Fig. 4)
• unscrew the self-threading screws of the front and detach it, detail (Fig. 4)
( 9-a1 ) Pilot flame (Fig. 5)
Replace the nozzle "G" according to that stated in chart 2 after having unscrewed nut "H".
The pilot flame does not need any adjustment.
( 9-a2 ) Main burner (Fig. 5 e 6)
Unscrew the injectors "E". Assemble the foreseen injector according to chart 2.
( 9-a3 ) Minimum adjustment (Fig. 7)
Remove the knob and adjust the flame in the minimum position until a stable and even flame is obtain; for
the suitable input see chart 2.
For the operation with liquid gas the adjustment screw indicated by an arrow (Fig. 07) must be screwed
down completely.
After each new adjustment of screw, seal itself with paint or sealing wax.
( 9-b ) Adjustment of the primary air of the burner (Fig. 6)
The air adjustment ferrule is to be positioned in the "X" mm measurement stated in chart 2. After the
positioning, screw down the blocking screw and check the appearance of the flame.
( 10 ) ACCESS AND DISASSEMBLY OF THE PIECES
(To be done only by qualified installers)
( 10-a ) Gas cock, pilot, ignition spark plug, thermocouple, burners
To gain access to these details you must remove several panels or particular plates as illustrated in figure
4 and in paragraph 9-a.
Once the components have been made accessible their replacement is very easy, unscrewing their own
nuts or attachments for each one.
After each replacement repeat the seal test of the gas circuit.
