Nordpeis Q-27FL Manuel D'installation page 23

Recessing the insert
When recessing the insert, adjacent walls that are not
classed as fire walls or are considered unsuitable for
heat loads must be protected by non-combustible
material according to the specification below.
All joints on the non-combustible material must be
sealed using the manufacture's recommended met-
hod. The area between the insert and the recess must
be ventilated according to the specification/dimension
diagrams on page 24. When top connecting a steel flue
please refer to the relevant manufacturer's installation
instructions. Observe the safety distances to combus-
tible material that steel flues require. Heat radiation
from the hatch is strong and is why combustible mate-
rial must not be placed closer than 1.5 m in front of the
hatch. When recessing, building material must not be in
direct contact with the insert due to the thermal expan-
sion of the insert.
Material requirements
The building material must not be combustible.
The thermal conductivity coefficient λ may be a maxi-
mum of 0.14 W/mK. The thickness of the building ma-
terial must always be at least 100 mm. In cases where
the building material's insulation properties are given as
a U-Value, this must be a maximum of 1.4 W/ m²K.
List of suitable materials:
Aerated concrete: λ=0.12-0.14
Vermiculite: λ=0.12-0.14
Calcium silicate: λ=0,09
Sealing*
If the recess is to extend to the ceiling, a seal must be
made above the convection exhaust. This is to prevent
hot air collecting in the recess closest to the ceiling.
The seal must a maximum of 100 mm above the
convection exhaust's upper edge and must be made up
of 20 mm thick building boards made of calcium silicate
or a panel with at least a 50 mm thickness of rock wool
on top.
Convection air
The convection air ventilates the surround, cools the
insert and transports the hot air out into the room. The
total sum of the effective cross section area up and
down must not be less than the stated values. The air
intake must be positioned somewhere between the
floor and the bottom of the insert, up to or on the sides
of the recess. The vent must be positioned above the
insert's highest point up to or to the sides of the recess.
Observe the minimum distance up to the ceiling (see
diagram on page 25).
Convection air in: 600 cm²
Convection air out: 600 cm²
To service the hatch's runners, all recess parts built out
in front of the moulding below the hatch, e.g. shelves,
must be removable. Note that building regulations apply
regarding the area below and in front of the insert, see
section "Hearth plate".
REFRACTORY
GLASS CANNOT
BE RECYCLED
Refractory glass should
be disposed of as resid-
ual waste, together with
pottery and porcelain
Recycling of the refractory glass
Refractory glass cannot be recycled. Old glass, bre-
akage or otherwise unusable refractory glass, must be
discarded as residual waste. Refractory glass has a
higher melting temperature, and can therefore not be
recycled together with glass. In case it would be mixed
with ordinary glass, it would damage the raw material
and could, in worst case end the recycling of glass. It is
an important contribution to the environment to ensure
that refractory glass does not end up with the recycling
of ordinary glass.
GB
23