89
–Close the gas tap
–Undo the burner group
– Replace the main nozzles (5) supplied
in kit, and placing the copper washer
(4); to carry out this operation use a ø
7 wrench.
–Insert the bridge of the ìMETHANE-GPLî
connector of the electronic panel onto
the ìGPLî position (4 fig. 22).
– For the setting of the values of the maxi-
mum gas pressure and the minimum fol-
low the indications as specified in point
4.2. Once the operating pressure changes
have been carried out seal the regulators.
–The supply pressure must never be
greater than 50 mbar.
–Once the operations have been finished
cover, with the label supplied, the gas
pre-setting data on the data tag.
NOTE: After assembly the sealing capa-
city of all the gas connections must be
tested, using soapy water and special pro-
ducts, and avoiding the use of naked fla-
mes. The conversion must be carried out
only by authorised personnel.
4.5
DISASSEMBLY OF
EXPANSION VESSEL
To disassemble the expansion vessel pro-
ceed in the following way:
–Make sure that the boiler has been emp-
tied of water
–Unscrew the union that connects the
expansion vessel and the screws that
release it from its bracket.
Before refilling the system, make sure that
the expansion vessel is pre-loaded to a pres-
sure of 0.8÷1 bar.
4.6
REMOVAL THE OUTER CASING
For easy maintenance of the boiler it is pos-
sible to completely dismantle the casing fol-
lowing these simple instructions (fig. 33):
–Pull the front panel (5) fixed with pin clut-
ches forward.
–Unscrew the two screws that fix the con-
trol panel to the shell.
–Remove the side panel (6) by unscrewing
the two screws that fix it to the upper
bracket (7) and to the support control
panel. Push upwards to free it from the
notches in the right side.
20
15
10
5
8,1 (7.000) 11,6 (10.000)
17,4 (15.000)
23,2 (20.000)
POTENZA TERMICA kW (kcal/h)
PRESSIONE UGELL
O mbar
25
30
0
29,0 (25.000)
25
30
35
20
15
10
5
8,1 (7.000) 11,6 (10.000)
17,4 (15.000)
23,2 (20.000)
POTENZA TERMICA kW (kcal/h)
PRESSIONE UGELL
O mbar
25
30
0
29,0 (25.000)
25
30
Pressure/heat output diagram for propane gas (G31)
Fig. 31/b
Fig. 31/c
4
1
2
5
6
7
3
Fig. 32
KEY
1 Burner manifold
2 Extension 1/2”
3 Lock nut 1/2”
4 Washer ø 6,1
5 Nozzle M6
6 Protection
7 Burners
WARNING: To ensure a perfect
seal, always use the washer (4)
supplied in the kit when replacing
nozzles, even in burner units for
which it is not specified.
Pressure/heat output diagram for butane gas (G30)
HEAT OUTPUT kW (kcal/h)
N
OZZLE
PRESSURE
mbar
HEAT OUTPUT kW (kcal/h)
N
OZZLE
PRESSURE
mbar
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