Nibe Contura Ci50, Installation Instructions Manual

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!
GB
95
Service
Make sure it is possible to access the damper control and
counterweight through hatches or ventilation grilles in the surround.
RECESSING THE INSERT
Convection air
Sealing
The recess must not go all the way up to the ceiling, leave an air
gap of at least 20 mm closest to the ceiling. The recess must be
sealed off above the convection exhaust. The seal must be 100
mm above the convection exhaust’s upper edge and must be made of 100 mm non-flammable material according to the material
requirements above. Use heat-resistant silicone, for example,
between the seal and chimney.
The building material must not be combustible.
The thermal conductivity coefficient
λ
must be a maximum of
0.14 W/mK.
The thickness of the building material 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.
Material requirements
The convection air ventilates the surround, cools the insert and
transports the hot air out into the room. The effective cross
section area on the air intake and exhaust must not be less than
the stated values. The air intake must be positioned somewhere
between floor level and the bottom of the insert, at the front or
on the sides of the recess. The vent must be positioned above the
insert’s highest point at the front or to the sides of the recess.
If the air intake respectively the vent is positioned on the sides,
the areas for the left respectively right sides must be the same
size to ensure that the insert is evenly cooled.
The distance from the exhausts on the sides to the combustible
wall behind must be 100 mm.
Observe the minimum distance up to the ceiling (see diagram on
page 97).
Convection air in: 600 cm²
Convection air out: 600 cm²
If the convection outlets are directed upwards the following
applies
- the recess must be free-standing or placed against a
non-combustible wall.
- the distance from the air outlet to combustible roof must be at
least 750 mm.
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 method. The area between
the insert and the recess must be ventilated according to the
specification/dimension diagrams on page 97. When connecting a steel flue, please refer to the particular
manufacturer's installation instructions. Observe the safety
distance to combustible material required by the steel flue Heat
radiation from the door is strong and because of this combustible
material must not be placed closer than 1.5 m in front of the door.
When recessing, building material must not be in direct contact
with the insert due to the thermal expansion of the insert.
Note that building regulations apply regarding the area below and
in front of the insert, see section ”Hearth plate”.
Recessing the insert
List of suitable materials:
Aerated concrete
λ
=0.12-0.14
Vermiculite
λ
=0.12-0.14
Calcium silicate
λ
= 0.09