Immergas MAGIS Victrix, Instruction And Warning Book

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3.5 CONVERTING THE BOILER TO
OTHER TYPES OF GAS.
If the boiler has to be converted to a different gas
type to that specified on the data plate, request
the relative conversion kit for quick and easy
conversion.
The gas conversion operation must be carried
out by an authorised company (e.g. Immergas
After-Sales Technical Assistance Service).
To convert to another type of gas the following
operations are required:
- disconnect the appliance;
- replace the nozzle located between the gas pipe
and gas/air mixing sleeve (Part. 7 Fig. 1-28),
taking care to disconnect the appliance during
this operation;
- re-power the appliance;
- calibrate the number of fan revolutions (parag.
3.6);
- adjust the correct air/gas ratio (parag. 3.7);
- seal the gas flow rate regulation devices (if
settings are modified);
- after completing the conversion, apply the
sticker, contained in the conversion kit, near
the data-plate. Using an indelible marker pen,
cancel the data relative to the old type of gas.
These adjustments must be made with reference
to the type of gas used, following that given in
the table (Par. 3.20).
3.6 CALIBRATION OF NUMBER OF FAN
REVS.
Attention: verification and calibration is
necessary, in the case of transformation to other
types of gas, in the extraordinary maintenance
phase with replacement of the circuit board,
air/gas circuit components or in the case of
installations with fume extraction systems, with
horizontal concentric pipe measuring more
than 1 metre.
The boiler heat output is correlated to the
length of the air intake and flue exhaust pipes.
This decreases with the increase of pipe length.
The boiler leaves the factory adjusted for
minimum pipe length (1m). It is therefore
necessary, especially in the case of maximum pipe
extension, to check the ∆p gas values after at least
5 minutes of the burner operating at nominal
heat output, when the temperatures of the intake
air and exhaust flue gases have stabilised. Adjust
the nominal and minimum heat output in the
domestic hot water and central heating modes
according to the values in the table (Par. 3.19)
using the differential manometers connected to
the ∆p gas pressure points (15 and 16 Fig. 1-28).
Access menu “M5” (Parag. 3.9) and adjust
the ignition power “P50”, while within item
“SERVICE” adjust the following parameters:
- boiler maximum heat output “P62”;
- boiler minimum heat output “P63”;
- maximum central heating output “P64”;
- minimum central heating output “P65”.
Listed below are the default settings featured
on the boiler:
Magis Victrix
P50 36 % 40%
P62
G20:
5500 (rpm)
LPG:
5000 (rpm)
P63
G20:
1000 (rpm)
LPG:
1000 (rpm)
P64
G20:
5000 (rpm)
LPG:
4500 (rpm)
P65
G20:
1000 (rpm)
LPG:
1000 (rpm)
P.C.B.
Key:
1 - Gas valve inlet pressure
point
2 - Gas valve outlet pressure
point
3 - Off/Set adjustment screw
12 - Outlet gas flow rate
regulator
Gas Valve 8205 Gas Valve 848
Key:
4 - Fuse 3.15 AF
5 - Selector S34: must be set on On