Immergas VICTRIX 26 2 I, Руководство пользователя

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25
STV2I ed 11/09 VICTRIX 2 I Export
Technical Documentation Technical Documentation
Key:
1 - Gas valve inlet pressure point
2 - Gas valve outlet pressure point
3 - Off-Set adjustment screw
12 - Outlet gas flow rate regulator
To carry out the control correctly and,
if necessary
, regulate
the air-gas ratio, proceed as follows:
VK 4115 gas valve
Calibration of the maximum CO
2
.
- start the boiler in chimney sweep phase and adjust the CH
temperature selector switch, which is present on the control
panel, to maximum .
- withdraw the combustion products by inserting the analyser
probe fully home.
- check whether the value of carbon dioxide (CO
2
) is within
the limits indicated in the table regarding the maximum heat
output ( see table above).
- if the values are incorrect, take them within the limits by
acting on the off-set adjusting screws (12) of the gas valve.
By turning in a clockwise direction the CO
2
value decreases,
by turning in an anti-clockwise direction, it increases.
Calibration of the minimum CO
2
.
- at the end of the adjustment of the maximum CO
2
, take
the central heating temperature selector switch present on
the control panel to minimum and check whether the value
of carbon dioxide (CO
2
) measured corresponds with that
indicated in the table stating the minimum output ( see table
at the side).
- if the values are incorrect, take them within the limits by
acting on the off-set adjusting screws (3) of the gas valve.
By turning in a clockwise direction the CO
2
value decreases,
by turning in an anti-clockwise direction, it increases.
Gas transformation.
The adaptation to the type of gas different to that for which
the boilers are prepared as per standard is performed using the
relevant kit (methane or LPG).
The transformation consists in the replacement of the gas noz-
zle positioned in correspondence with the inlet of the Venturi
pipe and adjustment of the maximum heat output (see nominal
and minimum heat output regulation).
Finally, check the carbon dioxide value (CO
2
) at maximum
and minimum power output which must be corrected if
necessary by regulating the off-set signal ( see air-gas ration
regulation).