Flextherm Green cable mat Guide D'installation page 6

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 the cable (picture 8).
Tape the label around the cold lead with electrical tape to hold it in place.
The cable identification label must remain on the cable. Removing it will
automatically void the mat's limited warranty. With the fish cord, slide the
cold lead through the wall and pull it into the connection box. Secure the
cable to the box connector hub. Install a protective plate at the bottom lathe
of the wall (picture 9).
Mat verification
Once the mat installation is completed, verify the cable's integrity as
explained in the "Mat Verification" section. Record the results on the limited
warranty card. Should the cable have been damaged during installation, do
not install the flooring. Immediately contact FLEXTHERM customer service at
1-800-353-9843.
System protection
In the time elapsed between the installation of the mat and the installation
of the flooring, protect the mat with cardboard or similar soft material and
restrict access to the area. A more rigid material (such as plywood sheeting)
could damage the cable integrated to the mat. It is recommended to take
photographs of the mat 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 renovate in the future.
Floor covering installation
General overview of the various techniques
Once the mat 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 heating mat is compatible with most 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.
FLEXTHERM proposes two installation techniques: the mortar glazing
technique and the self-levelling underlayment glazing technique.
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Please note that the following instructions do not represent a complete
flooring installation guide. They only pinpoint the basics 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.
Compatible floor coverings
FLEXTHERM's Green Cable Mat is only compatible with ceramic and natural
stone floor coverings.
Floor covering installation techniques
1. Polymer-modified Mortar Glazing Technique (picture 10)
Picture 8
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 mat (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 in between the cables is fully filled.
Once the glaze is set, proceed with the installation of the tile as per the
manufacturer's recommendations.
2. Polymer-modified Self-levelling Underlayment Glazing Technique
Picture 9
(picture 11)
Since the mat has a tendency to float on the self-levelling underlayment
ensure that it is well secured to the floor surface (sub-floor).
Using a smooth scraper spread a thin layer of self-levelling underlayment.
Once the underlayment is set, proceed with the installation of the floor
covering as per the manufacturer's recommendations.
General guidelines for mortars and
self-levelling underlayments
Whatever the selected technique the heating mat, as well as the mechanical
joint and floor probe must be completely embedded in the mortar or self-
levelling underlayment. FLEXTHERM generally recommends 6 to 10 mm (1/4
to 3/8 in) of mortar or self-levelling underlayment covering the mat.
WARNING: The floor covering must be in direct contact with
the mortar or self-levelling underlayment material that
encases the heating mat. Do not elevate the floor above the
concrete mass below: air gaps will act as insulating agents and
would prevent the heat from reaching the flooring.
Picture 10
Picture 11
TM
Green Cable Mat Installation Guide