Technical Specifications
(Be sure to follow our instructions for proper setting and grout materials)
QuietWarmth
®
QuietWarmth
®
See our complete warranty at www.QuietWarmth.com, or call us at 888-379-9695 to request a copy.
(Example: bookcases, trunks, etc.)
This system operates on a maximum of 120 volts, do NOT hook up system to higher voltage
Install GFCI Breaker – (Over-current Protection)
1. QuietWarmth
®
must be installed with a ground fault circuit interrupter (GFCI). We recommend installing QuietWarmth
®
with
thermostat with a built in GFCI. If you are not using a thermostatic control having a GFCI already built-in, then install a dedicated,
indicating-type GFCI. This GFCI serves as a local disconnect. The thermostatic
control must be purchased separately.
• Note: Follow all local building and electrical codes.
• It is possible to branch from an existing circuit, but this is not recommended.
• Please consult with a qualied electrician to determine if the circuit can handle
the load and if the circuit is GFCI-protected. The size of the breaker is determined
by the total square footage of heated padding. (Depending on local codes, you
may need multiple breakers, multiple thermostats or a relay for systems larger than
15 Amps).
Install Electrical Boxes
2. Thermostats are usually located near the power leads. However, they can be
located almost anywhere, because the power leads and the sensor wire can be
routed to electrical junction boxes and extended to a location outside the heated
room (such as a utility room).
3. For the thermostat, install a 4” electrical box with a 1-gang mud ring. Electrical
boxes should be located on interior walls
typically 60” from the oor, according to NEC or other local code requirements.
4. The oor sensor wire can be extended up to 50’ (maximum) if necessary.
Bottom Plate Work
5. Drill or saw holes at the bottom plate (See Fig 1.) One hole is for routing the
power leads and the other hole is for routing the thermostat sensor wire. These
holes should be directly below the electrical box(es).
6. Power lead conduit: Remove one of the knock-outs in the 4” box to route the lead.
7. Install 1/2” minimum conduit from the bottom plate up to the electrical box. Install
3/4” conduit if necessary to make room for more lead wires when using multiple
QuietWarmth
®
heated underlayment pads. (See Fig 1.) Close one end of conduit
to junction box enclosure with appropriate tting/locknut. Close bottom end of the
conduit ush with the wall and t with insulated bushings to prevent chang of wire
on exposed edge.
8. The thermostat (purchased separately) comes with a oor sensor. The oor sensor can be installed in a conduit separate from
the power lead wire conduit although installation of the sensor in conduit is not necessary. Check the resistance of the sensor
wire to be sure it is near 14.8 kOhms at 68° F.
9. Open a second knock-out in the bottom of the thermostat box. Feed the sensor through the knock-out down through the cut-out
in the bottom plate, and out into the oor area where the QuietWarmth
®
heated underlayment will be installed.
Rough-in Wiring
11. Install appropriate electrical wire (conductor) from the power source and GFCI protection to the thermostat following all codes.
Leave extra wire at the thermostat box for making connections. Refer to the Typical Wiring Diagrams for help.
• Use Latex Portland cement mortar that conforms to test
requirements found in ANSI A118.4 or 118.11.
• Hydrate (mix with water) according to the bag recommendations.
• Use a slow mixer (300 rpm or less) or mix by hand.
• Allow mixture to slake per manufacturer’s instructions and then lightly remix.
• Mix epoxy grout as per manufacturers instructions.
• Use epoxy grout as per ANSI A108.4.3.0 or ANSI A108.6.3.0 or ANSI
A108.9.3.0.
(Use plastic trowel for heating element side if available)
• QuietWarmth® to sub-oor: 1/4”x1/4”x1/4” Square or “U” notch.
• Tile to QuietWarmth
®
: Use a square or “U” notch trowel with notch size
appropriate for the size and type of tile installed and required to achieve 95%
coverage. (Minimum 1/4”x3/8”x1/4”)
• Maximum variation of 1/4” in 10’-0”. Deection is not to exceed 1/360 of span.
• All cracks in excess of 1/16” must be repaired with appropriate materials.
• Surface must be clean, dry and free of contaminants and sealers.
• Lightweight concrete surfaces must comply with manufacturer’s specications for tile installations including minimum
compression strength and application of primer/sealer.
1. Lay out the QuietWarmth
®
heated underlayment.
2. Except for approximately 1” of space between the walls and QuietWarmth
®
to run the lead wires, be sure to run QuietWarmth
®
to the edges of the perimeter leaving no gaps. Where necessary, use Insulayment
®
underlayment padding to ll in the gaps.
Insulayment
®
(NOT QuietWarmth
®
) can be cut to size using a sharp utility knife and a straight edge.
3. Pull back the QuietWarmth
®
heated underlayment.
4.
5. Key the thin-set mortar into the sub-oor with the at side of a 1/4”x1/4” square or “U” notch trowel and then comb it with the
notched side using a left to right motion.
6. Apply the thin-set mortar only as far ahead as will allow installation of the QuietWarmth
®
prior to the mortar beginning to set or
“skin over”.
7. Lay the QuietWarmth
®
and lead wires back into the thin-set.
8. Immediately (within 10 minutes) roll the QuietWarmth
®
with a 75lb roller in diagonal directions.
9. Do not walk on the rolled areas for at least 16 hrs. Allowing trafc on the installed QuietWarmth
®
prior to full set may cause
indentations resulting in weak areas and hollow spots.
10. Make sure there is at least 95% transfer of the thinset.
11. Seams should be butted together, leaving no gaps or overlaps.
12. Allow the QuietWarmth
®
to set for at least 16 hrs.
• For QuietWarmth
®
to sub-oor: use EGP (Exterior Glue Plywood) Latex
Portland Cement Mortar that conforms to ANSI A118.11.
• For Tile to QuietWarmth
®
: use Latex Portland Cement Mortar that conforms to
ANSI A118.4 or A118.11.
• Use epoxy grout as per ANSI A118.3.
(Use plastic trowel for heating element side if available)
• QuietWarmth
®
pad to sub-oor: 1/4” x 1/4” x 1/4” Square or “U” notch.
• Tile to QuietWarmth
®
: Use a square or “U” notch trowel with notch size
appropriate for the size and type of tile installed and required to achieve 95%
coverage. (Minimum 1/4”x3/8”x1/4”)
• Sub-oor assembly must comply with ANSI requirements.
• 16”oc, 2”x10” minimum joist: total sub-oor thickness – 3/4” with clean structurally sound underlayment grade T&G plywood as
the top surface.
• 24”oc truss or I-joist: total sub-oor thickness – 1 1/2” with clean structurally sound underlayment grade T&G plywood as the top
surface.
• Must be free of all sealers and contaminants.
• Maximum variation of 1/4” in 10’-0”.
• Deection is not to exceed 1/360 of span when measured under 300lb concentrated load (see ASTM C627).
(Same as Installation Method #3-1)
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