EN • 17
ENGLISH
FRANCAIS
NEDERLANDS
ES
p
A
ño
L
IT
ALIAN
o
DE
u
TSCH
664Y3300
INSTALLATIoN
propane conVersIon
As indicated on the data plate, the boiler is factory preset to
operate with G20 gas and G25 gas.
To convert the boiler to G30 gas or G31 type gas, it is necessary
to:
• change the orifice
• adjust the CO
2
• adjust parameters 13 to 19 of the MCBA (see MCBA parameters
for the specialist).
The CO
2
parameters to be set are indicated in the technical data
table.
Changing the orifice:
1. Turn off the gas and electric power supplies.
2. Unscrew the three-piece connection (A) of the gas pipe
below the valve.
3. Unplug the gas valve (B).
4. Disassemble the gas valve-venturi assembly (C).
5. Remove the gas valve from the venturi (D) and change the
orifice (F).
Important: make sure to position the seal(s) (E) of
the orifice correctly.
6. Reassemble the gas valve-venturi assembly, following the
same procedure in reverse order.
Check that the boiler has no gas leaks while
operating.
Conversion is not allowed in every country; please
refer to the category table.
Before adjusting the CO
2
, it is important to set the
fan speeds as indicated in the following table.
(see also mCBA parameters for the specialist).
Orifice
Prestige Solo
50
Prestige Solo
75
Prestige Solo
120
g20
—
—
8,6
g25
—
—
—
g30
6,0
6,8
6,7
g31
6,0
6,8
6,7
Parameter with front panel closed
prestige solo 50
prestige solo 75
prestige solo 120
g20 - g25
g30 - g31
g20 - g25
g30 - g31
g20 - g25
g30 - g31
CO
2
[max power]
% co
2
9,4
10,8
9,4
10,8
9,0
10,3
Maximum fan speed
rpm
5600
5300
6500
6500
6000
5600
CO
2
[min power]
% co
2
9,3
10,4
9,3
10,4
8,5 - 9,5
10 - 10,5
Minimum fan speed
rpm
1700
1700
1700
1700
1500
2000
Parameter with front panel open
CO
2
[max power]
% co
2
9,2
10,5
9,2
10,5
8,8
10,1
CO
2
[min power]
% co
2
9,1
10,1
9,1
10,1
8,3 - 9,2
10 - 10,5
Propane conversion Prestige Solo 120
Propane conversion Prestige Solo 50 - 75
D
A
B
C
E
F
D
A
F
C
E
B
Summary of Contents for 120
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