Install Instructions

the SunTouch is enough heat to match the heat loss of
the structure.
SunTouch is designed to deliver 12 W/sq.ft. The floor temper-
ature attainable is dependent on how well the floor is insulated,
the temperature of the floor before start up, and in the case of
uninsulated slab applications, the thermal drain of the underly-
ing materials. Please refer to your designer if you have further
questions regarding the surface temperature you can expect from
SunTouch in your particular construction.
NOTE: SunTouch has been tested to the American Standard
Test Method ASTM C627, a standard test method
for evaluating ceramic floor tile installation systems using the
Robinson-Type Floor Tester.
This test was performed by
The Tile Council of America
for installation above a concrete
slab and above a framed floor.
This testing resulted in a rating
of “Heavy” for normal (non-
vehicular) commercial and light
institutional use. This would
include all (non-vehicular) resi-
dential use as well.
Never install SunTouch
directly below vinyl, carpet,
or wood flooring. SunTouch must be completely embedded
in polymer-modified mortar, including all splices, per UL
requirements. Do not use glues or adhesives. Non-masonry
flooring materials such as carpet, vinyl, or hardwood can be
installed over SunTouch if the mat is installed in polymer-
modified mortar. Minimum installation temperature is 50⁰F
(10⁰C). Minimum bend radius of heating cable is 1 inch.
If you have any questions, please view our installation video,
visit our Web site at www.suntouch.com, or call us at
888-432-8932.
Orange woven mat
Heating wire
2 SunTouch Space Warming Manual
Welcome to SunTouch!
Braided metal
grounding jacket
Heating
elements
ETFE insulation
Tough Outer Layer
Enlarged cutaway view of the heating wire.
Shielded
power lead
SunTouch floor-warming mats are easy to install and
engineered for safety.
• SunTouch mats come in many different sizes and they
can be shaped and used in combinations to warm any
room.
• SunTouch power leads and heating elements are fully
grounded from one end to the other. The heating ele-
ments are covered with high-temperature ethylene-tetra-
fluoroethylene (ETFE) insulation.
• SunTouch heating elements are manufactured with a
braided twin-wire design and shielded to reduce electro-
magnetic fields (EMF) to ultra-low levels.
• SunTouch mats are tested to the independently-verified
Radiant Electric Emissions Test (REET) for use in living
areas.
• SunTouch controls are GFCI protected.
The SunTouch Mat: The heating wire is woven into a spe-
cial orange fiber to make rectangular mats. These mats are
manufactured for 120 VAC and 240 VAC, in 1-, 2-, and 3-ft.
widths. Mats range from 10 sq.ft. to 160 sq.ft., depending on
width, length, and voltage. Mats of different dimensions must
be wired together in parallel (not series) to fill larger areas.
However, they must be the same voltage. For example, to warm
an 80 sq.ft. area, many combinations are possible: two
2’ x 20’ mats; or even a combination of one 3’ x 20’ and one
1’ x 20’. Never combine 120 VAC mats with 240 VAC mats.
SunTouch is a safe and efficient electric floor-warming
product for interior applications. It cannot be used for exterior
snowmelting applications. It is generally intended for installa-
tion below tile, stone, and other masonry flooring materials in
residential and moderate commercial installations. SunTouch
can be used to heat a room, as well as warm the floor, provided
the heat loss of the room falls below the mat’s capabilities.
Please refer to specific design information provided for heat-
ing applications, especially when installing non-masonry
flooring materials. The designer must determine if the output of