Immergas VICTRIX Zeus 26 1 I, Руководство пользователя

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19
STVZ1I ed 10/09 VICTRIX Zeus 1 I
Technical Documentation Technical Documentation
To carry out the control correctly and, if necessary, regulate
the air-gas ratio, proceed as follows:
SIT 848 Gas Valve
Calibration of the maximum CO
2
.
- start the boiler in chimney sweep functioning mode and
adjust the C.H. temperature selector, 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
.
- when the maximum CO
2
has been regulated, take the CH
temperature selector switch, present on the control panel,
to minimum and check the correspondence of the carbon
dioxide (CO
2
) value measured with that indicated in the
table for 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).
Key:
1 - Gas valve inlet pressure point
2 - Gas valve outlet pressure point
3 - Off/Set adjustment screw
12 - Outlet gas flow rate regulator