Ensto tassu9 [13/29] Installation of underfloor heating fig a

Ensto tassu9 [13/29] Installation of underfloor heating fig a
13
INSTALLATION OF UNDERFLOOR HEATING (Fig. A)
1. Soil
2. Compacted gravel
3. Thermal insulation
4. Plastic fi lm
5. Reinforced concrete fl oor slab
- the surface of the slab must be cleaned thoroughly
before the cable is spread out
6. Fixing strip
- the xing strip is nailed to the base casting. It is easiest
to attach the strip before the concrete is fully set.
- if the slab is cast in a single work stage, attach the
cable to the mesh reinforcement.
7. Heating cable
8. Concrete screed
- in direct heating, thickness 30-50 mm, storage
heating 50-80 mm
9. Finish material
- in direct heating hard, very thermally conductive
(e.g. ceramic tile)
- in storage heating, less thermally conductive (e.g.
parquet, cork or vinyl fl ooring)
10. Thermostat
TASSU-S
TASSU-S heating cable is designed for renovation
installation on top of an old fl ooring surface, on a
plasterboard or wooden fl ooring. The loading per
metre of the cable is approx. 10 W/m.
Recommended laying distances
The usual laying distance for underfl oor heating is
9-12 cm.
In a plasterboard fl oor, the laying distance is min.
10 cm.
INSTALLATION ON TOP OF AN OLD FLOOR (Fig. B)
1. Old fl ooring
- Note! Check the old flooring adheres to the
subfl oor
- the surfaces must be free of dirt and dust
- wash the old fl ooring with crystal soda or a suitable
solvent
- vinyl fl ooring must be dried and roughened, remove
loose fragments
- level out the old fl ooring with plaster if necessary
2. Adhesion layer
- an approx. 2 mm layer of renovation plaster is spread
on vinyl fl ooring to make an adhesion surface.
The plaster is allowed to set for approx. 24 hours.
- the new fl oor’s adhesion to the concrete and slab
surface is ensured when necessary with a suitable
adhesive
3. Mesh ( e.g. thin wire mesh, approx. 25x25 mm)
- attachment of the mesh and cable with hot glue
or similar
- a cable may also be attached to a concrete and slab
oor with an fi xing strip
4. Heating cable
5. Screed and fi ller if necessary
- renovation plaster, which should cover the entire
cable
6. Installing the surfacing
- vinyl fl ooring is laid with glue and a tile fl ooring
with renovation plaster
7. Flooring
- vinyl fl ooring or ceramic tiling
8. Thermostat
INSTALLATION ON A PLASTERBOARD FLOOR
(Fig. C)
1. Plasterboard layer
- an intact layer of plasterboard should be left under
the cables. Additional strips of plasterboard will be
attached to this.
2. Heating cable
3. Plasterboard strips
- attach the strips to the base with nails or similar
4. Grooves for heating cable
- the cable is laid in the grooves, which are fi lled with
a mineral-based plaster
5. Filler (if necessary)
6. Extra-hard plasterboard
- if the fl oor structure underneath is suffi ciently
rigid, the surface tiling can be performed without a
plasterboard layer; a layer of boards is recommended
under vinyl fl ooring
7. Damp-proofi ng
- damp-proofi ng under a tiled fl oor
- damp-proofi ng can be left out under watertight
vinyl fl ooring
8. Flooring material
- vinyl fl ooring or ceramic tiling
9. Thermostat

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