Contura NIBE i50, Руководство по установке, Страница: 15 / 20

195
1 2
4 3
T25
GB
95
Self-closing door
(ONLY APPLIES TO GERMANY)
Rear connection
If connecting at the rear, we recommend using
a 45°+45° angle with a soot hatch and with the
centre 195 mm above the sleeve.
It is important that sweeping can be carried
out through convection grates or a hatch in the
surround.
Chimney
CHIMNEY/SELF-CLOSING DOOR
The insert is approved for connection to a chimney designed to
withstand flue gas temperatures of up to 350°C. The external
diameter of the connection sleeve is Ø
150
mm.
The insert requires a chimney draft that creates a negative
pressure of 20–25 Pa in the firebox. The draft is affected
primarily by the length and area of the chimney and also by how
well sealed it is. The minimum recommended chimney length is 3.5
m and a suitable cross-section area is 150-200 cm
2 (Ø140-160
mm). Carefully check that the chimney is sealed and that there is
no leakage of smoke from the soot doors or connections.
Note that sharp bends and horizontal lengths in a flue pipe reduce
the draft in the chimney. The maximum horizontal length of flue
pipe allowed is 1 m, provided the flue pipe rises vertically for at
least 5 m. It must be possible to sweep the full length of the flue,
and the soot doors must be easily accessible.
If two fireplaces are connected to the same chimney flue, the
stove must be fitted with a self-closing door.