Additional Considerations - Flextherm XPRESS Guide D'installation

Single-circuit installations
Connect the system's green wire (ground) to the terminal in the connection
box. Proceed as per the instructions in the electronic thermostat installation
manual. Identify the circuit on the electrical panel.
Multiple-circuit installations
Should your installation exceed 15 A, you will need one thermostat and
the appropriate number of expansion units, as indicated in the "Preliminary
Electrical Installation" section. For their connection, refer to the instruction
guide provided with those items. Identify the circuits on the electrical panel.
Keep Installation and User Guides
Please keep the thermostat instructions in a safe place for future reference.
Floor covering installation
Precautions to take during flooring installation
Install the floor covering in accordance with the manufacturer recommenda-
tions. Never screw or nail in the floor.
All floor covering must be in direct contact with the concrete slab that
encases the heating cable. 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.
The Concrete Mat Xpress is compatible with most floor coverings: ceramic,
natural stone, engineered wood, vinyl, floating floor, linoleum, parquet and
carpet (without rubber backing or carpet padding).
For floor coverings other than ceramic and natural stone, always check
with the manufacturer of the floor covering first, to make sure its product is
compatible with FLEXTHERM floor heating systems.
If you choose floating floor, certain factors could influence heat transmission
to the surface such as: the insulation factor of the membrane used or the air
pockets created by an uneven subfloor.
Note regarding the floor stability
The stability of the floor covering may vary from one to the other. Adhesive
manufacturers and the Tile Council of North America (TCNA) strongly
recommend the use of expansion joints on the perimeter of the room and
obstacles as well as across the room (reference TCNA article EJ-171).
Should you require more information regarding tile setting contact the TCNA
(www.tcnatile.com).

Additional considerations

Use of rugs
Do not lay a rug on a floor equipped with a floor heating system. The heat
that would get trapped could alter your rug or floor covering. The use of a
bath mat is acceptable as long as it is taken off the floor once the bath period
is over.
For the same reason, do not lay a piece of furniture under which air cannot
freely circulate on a floor under which there is a heating system.
Maintenance
FLEXTHERM's floor heating system is maintenance free.
Should it stop heating, immediately contact FLEXTHERM Customer Service
at 1 800 353-9843.
During a repair, always cut the power.
Concrete Mat Xpress Installation Guide
Limited Warranty
The Concrete Mat Xpress bears a 20 year limited warranty.
Please refer to the FLEXTHERM Limited Warranty Statement
inserted in this document for complete details.
Return the Limited Warranty Registration Card filled with
the results of the three (3) cable verifications (resistance and
insulation) in order to preserve the Limited Warranty of your
system.
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