Preparation For Installation - Emerson EASYHEAT Warm Tiles Elite Mats Directives D'installation Et D'utilisation

TOOLS/MATERIALS REQUIRED FOR INSTALLATION
• drill
• assorted bits
• chisel
• megohmmeter
• ohmmeter
• trowels
• wire stripper/cutter
• other usual tools/materials for electrical and tile flooring installations

PREPARATION FOR INSTALLATION

DO NOT INSTALL MATS AT THIS TIME
OVERVIEW
• WTE mats are available in a variety of sizes and shapes. Various floor
areas may be warmed with a single mat or by using a combination
of mats. Do not alter the length of the mat or heating cable to suit a
floor area larger or smaller than the recommended range for any mat.
Ensure the mat you have chosen is the correct size and voltage.
• When using multiple WTE mats, ensure the outside wire of adjacent
mats are within 1-1/2" to 3" of one another to ensure the cable
spacing and heat distribution are consistent across the floor. Spacing
closer than 1-1/2", can cause the cable to overheat. Do not space
mats greater than 3" apart, as the floor will not warm to a comfortable
temperature.
• The mat cannot be re-shaped to fit a floor area different than its
original shape.
• The heating cables are inside the mat between the fabric layers; the
complete mat is laid directly on the floor.
• All cold leads and the power supply must terminate and be connected
within an appropriate electrical connection box. The electrical
connection box and conduit must be listed/approved and of sufficient
volume to accommodate the wiring/connectors associated with the
thermostat/control, cold leads and power supply wiring.
• Space between the outside perimeter of the heating mat and the
surrounding room walls may be set to 1 1/2" to 6".
• Thermal insulation of space below the floor to be heated is optional. It
is, however, required that insulation be installed where the tempera-
ture of the underlying space is expected to be less than 50°F/10°C.
This will reduce energy consumption and improve the performance of
your Warm Tiles system. Where possible, it is also recommended to
insulate above the cold air return ducts under the floor.
• The heating mat will have to be embedded in a masonry base
(cementituous based mortar/thinset).
• It is recommended the Warm Tiles system be the only load on the
power supply circuit.
• There is no top or bottom side to the WTE mats. Mats may be flipped
in any direction to place the lead wire as close as possible to the
electrical connection box.
• If a thermostat is used to control the system, install the thermostat
sensor wire at the same time as the heating mat installation, as it must
also be embedded in the cementitious based mortar.
SELECT THERMOSTAT, SWITCH CONTROL
It is recommended a floor temperature sensing thermostat be used
to control the WTE floor warming mat system. This thermostat must
have the appropriate voltage, current and agency approvals, such as
Underwriters Laboratories (UL) or Canadian Standards Association
(CSA) for the area in which it is being installed. Note also that floor
temperature sensing thermostats are provided with a sensor cable that
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CAN T. (800) 794-3766
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must be installed in the floor at the same time as the heating cable/
mat is installed. EasyHeat offers a wide variety of thermostats suitable
for your application – visit www.easyheat.com.
Relays can be used in conjunction with a thermostat to control large
heated areas – EasyHeat offers relay kits for use with thermostats – visit
www.easyheat.com.
PLAN TILING METHOD
Do not install mat at this time.
TILE TIPS: To minimize potential tile cracking, it is important that
the subfloor on which the tile is to be laid is sufficiently rigid.
• It may be necessary to apply an underlayment such as backerboard,
plywood or metal lathe and mortar to achieve a solid application
surface to ensure the floor is stable, smooth and clean. Tile experts
typically require a 1-1/2" thick subfloor base for ceramic tile. Consult
your local tile service center, the Tile Council of America, or the Tile,
Terrazzo and Marble Association of Canada for methods and materials.
• WTE mats can be installed in tiled showers or other areas in the
bathroom, although it is recommended that you check with your local
electrical inspector first to verify that this application is allowed in
your jurisdiction. Waterproof membranes are usually used in these
areas and in other areas where large water spills may occur. These
membranes are typically composed of a thin waterproof film (max.
0.080" thick). These membranes can be used in conjunction with
the Warm Tiles systems by laying the mat on the floor first, then
covering with a scratch coat of cement-based underlayment. The
waterproof membrane is then installed on top of the scratch coat, and
the flooring completed in the usual manner. The heat will not usually
affect waterproofing membranes, but you should check with the
manufacturer to be certain.
• Anti-fracture membranes are sometimes installed in floors to
accommodate stress caused by differential movement of the sub-
floor components. This stress can be a major cause of cracking and
delamination of tiled surfaces. Anti-fracture membranes are usually
installed in a similar manner to waterproof membranes; Warm Tiles
mats are laid on the floor first, and then covered with a scratch
coat of cement-based mortar. The anti-fracture membrane is then
typically installed on top of the scratch coat and the floor finished in
accordance with the installation instructions for the membrane.
• If using metal lathe, always apply a scratch coat on the lathe prior to
laying mat – the metal lathe can be sharp enough to cut the heating
cable. The scratch coat will provide a smooth surface for the mat.
• For optimum performance, the top of the heating cables should be
a maximum of 3/4" below the finished floor surface. However, if the
floor is insulated below, it is possible to increase this depth to 2-1/2".
• Always keep a few spare tiles in case a repair is necessary at a future
date.
ELECTRICAL ROUGH-IN INSTALLATION: NEW CONSTRUCTION
For new construction, it is recommended that rough-in be completed
before drywalling begins.
N1. Determine the appropriate location and height for the electrical
connection box. A single mat installation would typically require a
15 cubic inch box. Consider proximity to other outlet boxes, ease
of routing the cold lead to the heated area, and accessibility of the
heating controller during normal use. Typically the cold lead enters the
same wall cavity in which the electrical connection box is located.
N2. Install the electrical connection box, adjusting box projection to suit
expected wall covering (Figure N2).
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