KAL-FIRE ECO-prestige 75, Installation Instructions Manual

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26.7 Roof duct with existing flue duct/ chimney (C91)
With an existing flue duct, use two connectors. At the top use
the ventilation plate with a draught-increasing hood. Connect
a flue liner or flexible flue liner to this, fitted through the
existing duct.
Check the flue duct for any leaks that may
cause low pressure and prevent the closed system from
functioning properly.
Mount the cover plate at the entrance
to the flue duct. Ensure this is well sealed.
If using an existing chimney as the air supply and as an
exhaust, use a flue liner or flexible flue liner and fit this in the
centre of the existing duct. The minimum dimensions of the
chimney must equal the diameter of the concentric material
– in this case 200/130 mm.
Maximum permitted vertical length: 12 metres
See paragraph 26.5 and 26.6 for possible flue configurations
26.8 Integrated measuring points
The Fairo ECO-prestige is equipped with built-in measuring points. These allow the concentrations of CO and O
2
to be measured
after connecting the flue. Carry out this measurement before completing the installation of the fire in order to ensure that the duct
is correctly installed.
To measure the concentrations of CO and O
2
:
1 Open the outer front frame (above the glass). The measuring points
are marked O
2
and CO. Remove the rubber cap.
2 Connect the measuring tool to the CO measuring point to determine
the level of carbon monoxide. The level should be lower than 1000 ppm*. If it
is above this level, check the burner pressure and the positioning of the
furnishings and ensure that the smoke outlet is not obstructed.
3 Connect the measuring tool to the O
2
measuring point to determine
the level of oxygen. The minimal level is 19%. If it is lower than this level, check
the air-tightness of the concentric duct and ensure that the outlet vents are
not obstructed.
*
Eco-prestige fires should have a CO value between 500 and 1000 ppm.