Important
Before making any type of adjustment, acti-
vate all the safety devices provided and de-
cide whether staff at work and those in the vi-
cinity should be informed.
In particular, turn off the gas and water supply
taps, cut off the electricity supply using the
master switch and prevent access to all devic-
es which might cause unexpected health and
safety hazards if turned on.
To carry out this operation, proceed as follows.
Open the hatch (A).
1)
Undo the screws to remove the drain lever (B).
2)
Undo the screws to remove the panel
3)
Back off the screw (D) which secures the ring
4)
nut (E).
Set the ring nut (E) at the distance (F) shown
5)
in the table
Tighten the screw (B).
6)
After making the setting, seal the screw with
7)
paint.
Replace all when the operation is complete.
8)
GB
3269830_inst_GB_rev.2
ADJUSTMENTS
INSTRUCTIONS AND WARNINGS FOR ADJUSTMENTS
ADJUSTING BURNER PRIMARY AIR
A
Important
These adjustments are only required if the
type of gas to be connected is diff erent from
that used for testing after the conversion pro-
cedure has been carried out (see page 13).
Caution - Warning
Adjustments must be carried out by author-
ised, qualifi ed staff , in accordance with the rel-
evant legal requirements.
GAS family
II (G25/20-25 mbar)
.
(C)
II (G25.1/25 mbar)
II (G20/20-25 mbar)
III (G30-G31/50 mbar)
III (G30/29 mbar)
III (G31/30-37 mbar)
III (G30-G31/36 mbar
D
B
C
- 14 -
Distance (F) (mm)
E
F
26
+0
-1
+0
26
-1
+0
26
-1
+0
26
-1
+0
21
-1
+0
21
-1
+0
21
-1
ENGLISH