Flextherm GreenCableSurface Guide D'installation page 8

Securing the Cold Lead to the Connection Box
To make it easier to pass the cold lead through to the connection box
wrap the label around it (picture 10). Tape the label with electrical tape to
maintain it in place. The cable identification label must remain on the cable.
Removing it will void the cable's limited warranty.
Pull the cold lead in the conduit using fish tape, if required. If necessary, cut
any excess of the cold lead while keeping the product's identification label.
To do so, remove the black sheath all the way to the desired spot without
damaging the conductors, slide the identification label over the conductor
and cut the excess wire.
Install a protective plate if required at the bottom lathe of the wall (figure 11).
Cable Verification
Once the cable installation is completed, once again verify the cable's
integrity as explained in the section "Cable Verification". Record the results
on the limited warranty card. Should the cable have been damaged during
installation, do not install the flooring. Contact FLEXTHERM Customer Service
at 1 800 353-9843.
System Protection
Between the installation of the cable and the laying of the flooring, protect
the cable with cardboard or similar soft material and restrict access to the
area. A hard material (such as a plywood sheet) could damage the cable.
It is recommended to take photographs of the cable installation before
installing the flooring. These pictures will prove that your installation meets
all the standards and written instructions and will be a useful reminder
should you have to renovate.
Floor Covering Installation
General Overview of the Various Techniques
Once the cable has been installed and tested, proceed to the application
of the mortar or self-levelling underlayment and the installation of the floor
covering.
FLEXTHERM's floor heating system is compatible with high-grade polymer-
modified mortars and can also be embedded in high-grade polymer-
modified self-levelling underlayments. Please refer to the manufacturer's
recommendations in regards to the use of their product with floor heating
systems.
8
FLEXTHERM proposes two common installation techniques: the mortar
glazing technique and the self-levelling underlayment glazing technique.
Please note that the following instructions do not represent a complete
flooring installation guide. They only pinpoint the specificities to be observed
while installing over a floor heating system. Always follow the flooring
manufacturer's directions in regards to the use of their products.
Floor Covering Laying Techniques
1. Polymer-modified Mortar Glazing Technique (picture 12)
– Ceramic or natural stone flooring
Picture 10
This technique involves glazing the cables with the same type of mortar that
will be used for the floor covering. A thin layer of polymer-modified mortar
is spread over the cable (in the same direction as the wire) with a flat trowel.
Pull the trowel at a 45° angle using a little pressure. Spread the mortar in a
way that the space between the cables is completely filled. It is not necessary
to fully cover the gauges.
Once the glaze is set, proceed with laying the tile as per the manufacturer's
recommendations.
2. Polymer-modified Self-Levelling Underlayment Glazing Technique
(picture 13) – All types of flooring
Picture 11
Since the cables have a tendency to float on the self-levelling underlayment
ensure that they are well secured to the floor surface with gauges at 1 m (3 ft)
intervals.
Using a smooth scraper, spread a thin layer of self-levelling underlayment.
Once the underlayment is set, proceed with laying the floor covering as per
the manufacturer's recommendations.
Picture 12
Picture 13
Green Cable Surface Installation Guide