18
Replacing the low setting nozzles (Fig. 13)
The low setting nozzles for the inner (
2
) and outer
(
1
) burners are located in the gas valve. They must
be replaced according to the new gas type and as
specified in the low setting nozzle table. Screw in
the nozzles fully and check that they are tight
(metallic seal).
If it should be necessary to correct the low-setting
nozzles (
1
) and (
2
) as the result of deviating gas
types and pressure, the flow rate can be increased
by turning to the left.
Replacing the main nozzles
Main nozzle replacement for the outer burner
(Fig. 14)
Replace the main nozzle
3
(SW 10) for the high
setting according to the new gas type and as
specified in the nozzle table. Beforehand, loosen
the screw
2
and push away the air regulation sleeve
1
and fix it in place with the screw
2
. Check the
absence of gas leaks on the installed main nozzle.
According to the new gas type, stick the included
adhesive label over the data specified on the gas
connection.
Adjust the air gap according to the table entitled
“Air gap adjustment" for the outer burner.
Main nozzle replacement for the inner burner
(Fig. 15)
Remove the supply line by undoing the union nut
4
(SW 8). Unscrew the injector screw
5
(SW 12) and,
using a small screwdriver, remove the nozzle
6
from
the injector
7
. Install the nozzle according to the
new gas type (see data in the nozzle table). To do
this, fit the nozzle
6
on the front of the injector
screw
5
and screw both of them into the injector.
Plug in the supply line and screw it in. Check for
the absence of leaks. Adjust the air gap as detailed
in the table entitled “Air gap for inner burner".
Fig. 15
distance in mm
Fig. 14
1
2
3
4
5
6
7
See table on Page 12 for details of nozzle settings.
Fig. 13
2
1
Caution:
the flame must neither go off nor flash
back when you change over swiftly from the high
to the low setting.
