16
Replacing the low setting nozzles (Fig. 11)
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. 12)
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. 13)
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. 13
distance in mm
Fig. 12
1
2
3
4
5
6
7
See table on Page 10 for details of nozzle settings.
Fig. 11
2
1
Caution:
the flame must neither go off nor flash
back when you change over swiftly from the high
to the low setting.
