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2.12
ASSEMBLING THE GAS
ASSEMBLY
Connect the gas assembly to the burner ma-
nifold as shown in fig. 12.
The gas assembly may be assembled on the
right or left side of the manifold.
ATTENTION: If the gas assembly is mounted
on the left side of the manifold, remove and
turn the gas valve 180° to be able to have
front access to adjustments. Move the con-
nection pipe too and, after assembly, test
the gas connection seals using soapy water
or specific products, without using naked
flames.
2.13
ASSEMBLING THE CONTROL
PANEL (fig. 12/a)
Remove the control panel's protective co-
ver and insert the wiring guard on the front
upper panel, anchoring it in place with the
screws provided.
Replace the cover. Proceed to assemble the
instrument panel, anchoring it in place with
the screws provided.
Insert the instrument bulbs in their she-
aths: first insert the control thermostat bulb,
pushing it in until it touches the bottom of the
sheath.
WARNING: To ensure correct temperature
control in the boiler, the bulbs of the con-
trol and safety devices must be inserted in
the sheath from the side corresponding to
the heating system delivery and return con-
nections. If the heating system delivery and
return connections are on the left side of
the generator, the gas assembly must also
be assembled on the left side to permit this
arrangement.
2.14
ASSEMBLING THE
ELECTRICAL PANEL
(fig. 12/b)
Remove the cover of the electrical panel and
anchor the control panel to the lower front
wall using the screws provided.
Connect the two sockets to the plugs from
the control panel.
Complete the electrical panel by connecting
the rest of the cables. Unwind the cables of
the ignition and detection electrodes emer-
ging from the electrical panel.
Insert the ignition electrode in the hole
between the head and the intermediate on
the gas assembly side, anchoring it to the
two stud bolts (fig. 12/c).
Perform the same operation on the detection
electrode, which will go in the hole provided
between the head and the intermediary at
the other end of the body.
NOTE: When assembling the two electro-
des, be very careful not to break their cera-
mic coating; they must be replaced imme-
diately if it is broken.
52
3
2
KEY
1 Connection pipe
1
to burner manifold
2 Gas assembly
3 Bulb sheath
KEY
1 Protective cover
2 Wiring guard
3 Front upper panel
4 Instrument panel
5 Instrument bulbs
6 Sheath
7 5 pole plug
8 7 pole plug
Fig. 12/a
KEY
1 Cover
2 Electrical panel
3 Lower front panel
4 5 pole plug
5 7 pole plug
7 1-2 gas solenoid valve cable
8 Minimum gas pressure
switch cable
9 Minimum gas pressure valve cable
10 Detection electrode
11 Ignition electrode
Fig. 12/b
KEY
1 Ignition electrode
2 M5 x 15 stud bolt
3 Washer ø 5.3
4 Nut M5 OT
5 Right head
6 Intermediate element
with nib
Fig. 12/c
Fig. 12
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