Underfloor Mat Submittal

Project Name: ___________________________________________________________________________________________
HeatWeave Representative: _______________________________________________________________________________
Unit Tag #:_______________________________ Order #: _______________________________ Date: ________________
Designer: __________________________ Submitted By: _______________________________ Date: ________________
Contractor: __________________________ Approved By: _______________________________ Date: ________________
HeatWeave
®
UnderFloor Mat
PRODUCT DESCRIPTION
General
The Heatweave UnderFloor mat is a series resistance type heating
element assembled into a foil "radiator" surface. It is installed indoors
under a wood subfloor between the joists in residential and light
commercial applications. Floor coverings above may be any type, with a
maximum of R-11 total insulation for all layers.
An EMF field monitor, held at 1/2" above operating heating elements
and set to milligauss scale, must indicate less than one milligauss
across the entire heating element and mat assembly. This is the field
added to the ambient while the heating element is operating.
Heating mat shall be tested by manufacturer for correct resistance
and insulation integrity before leaving the factory. Compliance with this
quality criteria shall be certified on the label of each mat.
All heating mats furnished under this section shall be supplied by
a single manufacturer. Manufacturer shall have at least 20 years
experience manufacturing floor-warming systems. The product shall
have a limited 25-year warranty.
Heating mat made with self-regulating wire or a wire not assembled
into a foil surface mat construction is not acceptable for this
application.
The Heating Mat
The resistance heating wire for the heating mat shall be series
resistance type that cannot be cut to length on jobsite. It shall be UL
Submittal and Specification
Watts Radiant 4500 E. Progress Place Springfield, MO 65803-8816
Phone: [phone] Fax: [phone] www.wattsradiant.com
Recognized for the U.S. and Canada for this application. Insulation
shall be rated for continuous duty at 194°F (90°C). The mat can
produce up to 10 watts/sq. ft. (108 watts/sq. meter).
The heating cable assembly shall be made of two individual heating
wires twisted around each other to reduce the EMF to nearly zero. Each
wire shall be made of oxygen-free copper or Nickel-Copper conductor
shall be encapsulated in an inner layer of ETFE fluoropolymer. This
insulation shall be surrounded by a stainless steel braid to provide a
ground path.
Factory applied end termination splice shall have a diameter of 3/16"
and shall be crimped, soldered, and environmentally sealed. Power
leads shall be of sufficient length to reach junction boxes as shown on
detailed drawings. The finished mat shall have only one power lead at
one end of the mat. Power leads shall be minimum 10' long, made of
stranded wire recognized by Underwriters Laboratories Inc. (UL
®
), and
color-coded to match the standard NEC wire color scheme. This power
lead assembly shall be shielded with a tin-coated copper braid bonded
to the ground wire and the heating wire ground braid. A polymer coated
foil shall be adhered to the cable, on the top and bottom, providing
conductive and radiant heat transfer.
CONTROL/OPERATION
The control system shall include a SunStat Pro thermostat. This
control shall have the following attributes as a minimum: dual-voltage
capability (120V/240V); floor, air, or air/floor sensing; Regulator (no-
sensor) capability; SmartStart (early start) technology; temperature
set-back and related programming; home automation remote control;
15-ft long Class 2 double insulated floor sensor; and master control
capability with direct connection to SunStat Relays.
The SunStat shall have an integral Ground Fault Circuit Interrupter
(GFCI) Class A (5mA) and integral 16-amp Relays. If the system
requires more than 15 amps, SunStat Relay(s) shall be used as
needed. SunStat Relays shall be capable of connecting directly to the
main SunStat thermostat.
If an alternate control is used, the power supply circuit shall have a
Class A GFCI. All controls shall be installed according to local codes
and manufacturer recommendations.
CODE LISTINGS/SPECIFICATIONS
The heating mat shall be Listed by UL
®
for the U.S. and Canada.
The manufacturer shall be a member of the Radiant Panel
Association, TCNA, WFCA, NTCA, USGBC, and other industry
associations.
Charter Member:
Radiant Panel Association
Dual wire
configuration
allows for single point
connection and ultra-low EMF
(electromagnetic field)
ETFE insulation
Stainless steel braided grounding jacket
Oxygen-free
copper heating
element
The Wire
Print Form