suntouch TapeMat D12 User manual

Installation Manual
TapeMat™
Series D12
Please be aware local codes may require this
product and/or the thermostatic control to be
installed or connected by an electrician.
Please leave this manual with the end user.

2SunTouch TapeMat Installation Manual
Welcome to SunTouch®!
SunTouch floor heating mats are a simple way to heat any indoor space. This instruction manual is provided as a guide
to installing SunTouch TapeMats, including design considerations, installation steps, limitations, precautions, and floor
covering guidelines.
Specifications for TapeMat:
SunTouch TapeMat is a complete heating mat consisting of
a series heating wire and a power lead for connection to the
electric power supply. The heating wire length cannot be
cut to fit.
Controls: SunTouch TapeMats must be controlled by a
SunStat® floor sensing thermostat.
Voltage: 120 VAC, 240 VAC, 1-phase (see Table 2)
Watts: 12 W/sqft (41 Btu/h/sqft)
Maximum circuit load: 15 A
Maximum circuit overload protection: 20 A breaker
GFCI: (Ground Fault Circuit Interrupter) required for
each circuit (included in the SunStat control)
Listing: UL Listed for U.S. and Canada under UL 1693
and CAN/CSA C22.2 No. 130-03, File No. E185866
Application: Type (X) (See UL Name Plate Label on product) For indoor floor heating application only. Only embedded in
polymer modified cement based mortar . UL Listed to U.S. Standards only for installation into a shower area. (See 4.10 for
details).
Minimum bend radius: 1 inch
Maximum exposure temperature: (Continuous and storage) 194ºF (90ºC)
Minimum installation temperature: 50ºF (10ºC)
Skill Level
Installation must be performed by qualified persons, in accordance with local codes, ANSI/NFPA 70 (NEC Article 424) and CEC
Part 1 Section 62 where applicable.
Intermediate skills in electrical wiring required. The heating product may be secured in place by qualified installers, however,
consider hiring an electrician to rough in the power supply wiring. Please be aware local codes may require this
product and/or the SunStat control to be installed or connected by an electrician.
Expected floor temperature
Heating performance is never guaranteed. SunTouch TapeMat is designed to deliver 12 W/sq.ft. The floor temperature
attainable is dependent on how well the floor is insulated, the temperature of the floor before start up, and the overall thermal
drain of the floor mass. Insulation is required for best performance. Refer to Phase 5 for important design considerations.
Double-
sided Tape
Heating Wire
Factory Splice
Power lead
Mat Mesh
Table of Contents
Phase 1 Designing the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .pg 4
Phase 2 Preparations ...........................................pg 5
Phase 3 Electrical Rough-in .....................................pg 8
Phase 4 TapeMat Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .pg 9
Phase 5 Floor Coverings ........................................pg 13
Phase 6 Control Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .pg 15
Appendices ........................................................pg 16
Control Wiring ......................................................pg 19
Connections ........................................................pg 21
Troubleshooting ....................................................pg 22
Warranty ........................................................pg 23

SunTouch TapeMat Installation Manual 3
As with any electrical product, care should be taken
to guard against the potential risk of fire, electric
shock, and injury to persons. The following cautions
must be observed:
NE VER install TapeMat under carpet, wood, vinyl, or
other non-masonry flooring without embedding it
in thin-set, thick-set, or self-leveling mortar.
NE VER install TapeMat in adhesives or glues
intended for vinyl tile or other laminate flooring. It
must be embedded in polymer-modified mortar.
NE VER cut the heating wire. Doing so will cause
dangerous overheating and will void the warranty.
The power lead may be cut shorter if necessary, but
never remove completely from the heating wire.
NE VER bang a trowel or other tool on the heating
wire. Be careful not to nick, cut, or pinch the wire
causing it to be damaged.
NE VER use nails, staples, or similar to fasten the
heating wire to the floor.
NE VER attempt to repair a damaged heating wire,
splice, or power lead using unauthorized parts. Use
only factory authorized repair parts and methods.
NE VER splice one mat heating wire to another mat
heating wire to make a longer mat. Multiple mat
power leads must be connected in parallel in a
junction box or to the thermostat.
NE VER install one mat on top of another or overlap
the heating wire on itself. This will cause
dangerous overheating.
NE VER forget to install the floor sensor included with
the thermostat.
NE VER install TapeMat in any walls, or over walls or
partitions that extend to the ceiling.
NE VER install mats under cabinets or other built-
ins having no floor clearance, or in small closets.
Excessive heat will build up in these confined
spaces, and the mat can be damaged by fasteners
(nails, screws, etc.) used to install built-ins.
NE VER remove the nameplate label from
the power leads. Make sure it is viewable for
inspection later.
NE VER extend the heating wire beyond the room or
area in which it originates.
NE VER allow a power lead or sensor wire to cross over
or under a heating cable. Damage could result.
AL WAYS completely embed the heating wire and
factory splices in the floor mortar.
AL WAYS maintain a minimum of 2" spacing between
heating wires.
AL WAYS pay close attention to voltage and amperage
requirements of the breaker, the thermostat, and
the TapeMat. For instance, do not supply 240 VAC
power to 120-VAC TapeMat as damage will result.
AL WAYS make sure all electrical work is done by
qualified persons in accordance with local building
and electrical codes, Section 62 of the Canadian
Electrical Code (CEC) Part I, and the National
Electrical Code (NEC), especially Article 424.
AL WAYS use copper only as supply conductors to the
thermostat. Do not use aluminum.
AL WAYS seek help if a problem arises. If ever in
doubt about the correct installation procedure to
follow, or if the product appears to be damaged,
the factory must be called before proceeding with
the installation.
Installation must be performed by qualified personnel,
in accordance with local codes and standards. A licensed
electrician is recommended. Read these important
warnings and all installation instructions prior to
installation. Failure to do so can result in fire, shock,
property damage, personal injury, and/or death.
CAUTIONS!
ReAd BefORe INSTAllINg TApeMAT
Table 1

4SunTouch TapeMat Installation Manual
Phase 1: Designing the System
SunTouch TapeMat should be installed in all interior floor
areas intending to be warmed. It cannot be used for exterior
applications, snow melting, or in ceilings. In many applications
it can be used to heat the room but an accurate heat-loss
calculation must be made to determine if enough heat will be
provided to match the heat loss.
STEP 1.1
Make a sketch of the room and measure the overall room size.
Measurement should be made from wall-to-wall and include
size and location of cabinets, tub, toilets, etc. Determine
the total square footage of floor area to be warmed by
subtracting out the area associated with the built-ins. Keep in
mind the following:
• Heat will not radiate beyond about 1-1/2" on either
side of the heating wire, therefore consistent coverage
is important.
• Do install heating wire within about 1-1/2” to 2” from a
counter or vanity in the kick-space to ensure warmth in
this area.
• Do not install the heating wire underneath cabinets or
fixtures having no floor clearance or inside a wall. Excessive
heat will build up and cause damage.
• Do not run the heating wire into small closets or other
confined areas where excessive heat will build up.
• Do not install the heating wires closer than 6" from toilet
rings to avoid possible melting of wax rings.
• Do not directly cross expansion joints.
• Do not place the heating wire any closer than 4" from other
items such as forced air ducting or potable piping to avoid
overheating them.
• TapeMat must be laid in a manner to prevent surface
obstructions being placed directly over the mat location.
Failure to do so will result in capturing heat and may allow
potential damage from mounting brackets, bolts, or similar
penetrations associated with pedestals, support columns,
walls, or similar.
• Install the heating wires 4" to 6" away from the perimeter
walls of the room. It may be placed closer, but is
unnecessary since most people do not stand this close to
the wall. Make sure the heating wire will not be located
underneath finish trim.
• The heating wire and factory splices must be completely
embedded in the thin-set. Only the power lead may
exit the thin-set and enter the wall. Pull power leads
through UL Listed conduit to a UL Listed junction box or
the control box.
STEP 1.2
Multiply the heated area square footage calculated in Step 1.1
by 0.90 to allow 4" to 6" spacing around the edges of the floor
area. Use this resulting square footage to select the appropriate
mats from Table 2 on page 5.
Remember:
• Do not exceed 15 amps at 120 VAC (1800 watts) or
15 amps (3600 watts) at 240 VAC through a single SunStat or
SunStat Relay.
• Select either 120 VAC or 240 VAC depending on the power
available. DO NOT mix voltages on the same SunStat if more
than one mat is to be installed to cover an area.
• Load no more than 12 amps on a 15-amp circuit breaker, or
16 amps on a 20-amp circuit breaker.
• If the area requires more than 15 amps to be controlled by
one thermostat use SunStat Relays to take the additional amp
load.
• See the Wiring Diagrams in Appendix for further information.
If the exact size of product calculated is not found in the
selection Table 2 on page 5, it may be necessary to adjust the
warming area(s) or select the next smaller size. Remember, the
heating wire must never be cut shorter to fit, and must be
completely embedded in thin-set, thick-set, or self-leveling
concrete. Failure to do so may result in damage to the
product. Do not select a product larger than necessary.
Small bath design
Gross Room Area: 8 x 5 = 40 sf
Built-in Areas
Sink and Toilet: 2 x 5 = 10 sf
Bath Tub: 2.5x 5 = 12.5 sf
Total Heated Area: 40 - (10 + 12.5) = 17.5 sf
TapeMat Coverage: 17.5 x 0.90 = 15.75 sf
Chosen TapeMat Size: 15 sf.
Sink
Toilet
Bath Tub
8 ft
5 ft 2-1/2 ft
5 ft
2 ft

SunTouch TapeMat Installation Manual 5
STEP 1.3
Make sure proper subfloor materials are selected in accordance
with the construction and floor covering requirements. Use of
an anti-fracture membrane, backerboard, or other materials are
recommended when installing tile or other stone floor covering.
STEP 1.4
Pay careful attention to the total amps when selecting
multiple mats to make sure the controls, circuit breaker
panel, and all wiring have the proper capacity. Design circuit
protection and wiring to handle 125% of total amp load.
Table 2 (TapeMat sizes)
120 VAC
2 ft Wide
Mat Square
Footage
Mat Size
(W x L)
Model
Number
Amp
Draw Ohms
10 2' x 5' 12000524 1.0 102-125
15 2' x 7'-6" 12000724 1.5 71-87
20 2' x 10' 12001024 2.0 49-60
25 2' x 12'-6" 12001224 2.5 39-48
30 2' x 15' 12001524 3.0 30-37
35 2' x 17'-6" 12001724 3.5 25-31
40 2' x 20' 12002024 4.0 22-27
45 2' x 22'-6" 12002224 4.5 19-23
50 2' x 25' 12002524 5.0 17-21
60 2' x 30' 12003024 6.0 14-17
70 2' x 35' 12003524 7.0 12-14
80 2' x 40' 12004024 8.0 11-13
3 ft Wide
15 3' x 5' 12000536 1.5 71-87
20 3' x 6'-8" 12000636 2.0 49-59
25 3' x 8'-4" 12000836 2.5 39-48
30 3' x 10' 12001036 3.0 30-36
45 3' x 15' 12001536 4.5 19-23
60 3' x 20' 12002036 6.0 14-17
240 VAC
2 ft Wide
Mat Square
Footage
Mat Size
(W x L) Model Number
Amp
Draw Ohms
20 2' x 10' 24001024 1.0 206-252
30 2' x 15' 24001524 1.5 148-180
40 2' x 20' 24002024 2.0 98-120
50 2' x 25' 24002524 2.5 79-97
60 2' x 30' 24003024 3.0 60-64
70 2' x 35' 24003524 3.5 50-62
80 2' x 40' 24004024 4.0 43-53
90 2' x 45' 24004524 4.5 38-47
100 2' x 50' 24005024 5.0 34-42
120 2' x 60' 24006024 6.0 28-35
140 2' x 70' 24007024 7.0 24-29
160 2' x 80' 24008024 8.0 22-27
3 ft Wide
30 3' x 10' 24001036 1.5 144-176
40 3' x 13'-4" 24001336 2.0 97-118
50 3' x 16'-8" 24001636 2.5 78-95
60 3' x 20' 24002036 3.0 60-74
90 3' x 30' 24003036 4.5 38-47
120 3' x 40' 24004036 6.0 28-35
It is important to select the proper sized TapeMat for the given
area. TapeMat can not be cut shorter in order to fit a given area.
Doing so will damage the heating wire and will prevent the system
from working.
Phase 2: Preparations
Before installing TapeMat, make sure to fully inspect the
products and carefully plan the site. The following steps may
not necessarily occur in the order shown, depending on
contractor and electrician scheduling and variations in site
preparation requirements.
Items Needed
Materials:
- SunStat thermostat control with floor sensor. The SunStat is
available from your SunTouch dealer. All other items can be
purchased locally. The SunStat is listed separately from the
TapeMat.
- 20-amp circuit breaker (single for 120-VAC and dual
for 240-VAC systems)
- UL Listed electrical box (extra deep) for the control;
single-gang (not a gangable type) for one or two mats or
4"-square deep box with a single-gang "mud ring" cover
- 4" junction box with a cover (if needed)
- Flexible or rigid UL Listed conduit (for new construction)
- 12-gauge or 14-gauge electrical wiring cable
(consult local code)
- Wire nuts if using an additional junction box
- Nail plate
Tools:
- Di gital multi-meter for ohms testing;
must read up to 20,000 ohms to measure sensor
- Drill with 1/2" & 3/4" bits
- Hammer and chisel
- Wire strippers
- Phillips screwdriver
- Fish tape
- Hole saw
- Floor covering installation tools
Note: Installer must be familiar with electrical wiring
techniques (licensed electrician recommended). If
applicable for the installation, installer must also be
familiar with floor covering techniques.

6SunTouch TapeMat Installation Manual
Tips
Co ntrols: The SunStat controls will provide direct
floor-warming control or can be set to sense air
temperature with a floor temperature limit. Other controls
may not give the same desired level of control or overall
comfort and are not recommended.
Lo udMouth™: The LoudMouth is a continuity monitor with an
integrated alarm. An alarm will sound if damage occurs to
the heating wire during installation. The LoudMouth stays
connected to the power leads throughout the TapeMat
installation. A small screwdriver for connecting the leads is
included with the LoudMouth monitor.
INSPECT CABLE, CONTROL, and SENSOR
STEP 2.1
Remove the TapeMat, control, and sensor from their
packages. Inspect them for any visible damage
and verify everything is the correct size and type
according to the plan and the order. Do not attempt to
install a damaged product.
STEP 2.2
Record the product information in Table 4. Give this
information to the homeowner to keep in a safe place.
The TapeMat model number, serial number, voltage, and
resistance range are shown on a nameplate label attached
to the power leads, as well as the marking "(x)-FOR INDOOR
FLOOR HEATING APPLICATIONS".
Do not remove this nameplate label. The electrical
inspector will need to see this.
STEP 2.3
Use a digital multi-meter set to the 200Ω or 2000Ω (2kΩ)
range to measure the resistance between the conductors
of the mat power leads. Record these resistances in Table 4
under “Out of the box before installation”.
The resistance should measure within the resistance range
on the nameplate label. If it is a little low, it may be due
to low air temperatures or meter calibration. Consult the
factory if in doubt.
CAUTION: Make sure power is not applied to the
product until it is fully installed and ready for final
testing. All work must be done with power turned
off to the circuit being worked on.
Record the information from the
nameplate label into the Mat
and Sensor Resistance Log.
Leave the nameplate label
attached to the power leads for
later inspection.
Press the test lead tips to the Black and White (or Blue for 240 VAC) power lead wires.
This reading should correspond to the factory resistance range on the nameplate label
attached to the Power lead.
Readings between the White (or Blue for 240 VAC) and Ground or the Black and Ground
power lead wires should measure “open”, or “O.L”, or the same as displayed when the test
leads are not touching anything.
Black Lead
White or Blue Lead
Ground Lead
Black Lead
200 ohm setting
Black wire to COM
Red wire to Ω
White or Blue Lead
Ground Lead
Black Lead
White or Blue Lead
Ground Lead

SunTouch TapeMat Installation Manual 7
Measure the resistance between either of the white or
black leads and ground lead. This measurement should be
“open”, usually indicated by an “OL” or a “I”. This is the same as
displayed when the test leads are not touching anything.
If there is any change in the reading, record this information
and contact the factory before continuing. This could
indicate damage, test lead problems, or a number of other
issues. Try “pinning” the test leads to the cable lead wires
against a hard non-metal surface if the readings continue to
fluctuate.
Change the meter to the 20,000 ohms (20 kΩ) range.
Measure between the lead wires of the floor sensor. This
resistance varies according to the temperature sensed.
Table 3 provides approximate resistance-to-temperature
values for reference.
The LoudMouth monitor (sold separately) will constantly monitor
the heating wire during the entire installation process. If the wire is cut or damaged
during installation, the LoudMouth will sound an audible alarm.
Temperature Typical Values
55°F (13°C) 17,000 ohms
65°F (18°C) 13,000 ohms
75°F (24°C) 10,000 ohms
85°F (29°C) 8,000 ohms
Table 3 (floor sensor resistance values)
Mat 1 Mat 2 Mat 3
Mat serial number
Mat model number
Mat voltage
Mat resistance range
Sensor
OUT OF THE BOX BEFORE INSTALLATION
Mat white to black
Mat white to ground
Mat black to ground
Sensor
AFTER MAT IS SECURED IN PLACE
Mat white to black
Mat white to ground
Mat black to ground
Sensor
AFTER SLAB IS POURED
Mat white to black
Mat white to ground
Mat black to ground
Sensor
Retain this log to retain the warranty! Do not discard!
Table 4 - TapeMat Resistance Log

8SunTouch TapeMat Installation Manual
Table 5 - Circuit Breakers and Supply Wire
Mat(s) Supply Wire Breaker
VAC total amps (AWG)* qty type** rating
120 up to 12 amps 14 1 SP 15 or 20 A
120 up to 15 amps 12 1 SP 20 A
240 up to 12 amps 14 1 DP 15 or 20 A
240 up to 15 amps 12 1 DP 20 A
* Recommended only. Follow local codes for wire gauge size.
** SP= single-pole, DP=double-pole
! CAUTION
Do not perform any electrical work unless qualified to do
so. Work should be done with great care and with power
turned off to the circuit being worked on. Follow all local
building and electrical codes.
Phase 3: Electrical Rough-in
STEP 3.1:
Circuit Breaker (Overcurrent Protection)
SunTouch TapeMat(s) must be protected against overload
by a circuit breaker. GFCI type (ground fault circuit interrupter)
or AFCI type (arc-fault circuit interrupter) breakers may be
used if desired, but are not necessary.
The rating of the breaker (see Table 5) is determined by
the amp draw of the heating mats (see Table 2 or the
Nameplate Label). If multiple mats are to be controlled by one
SunStat, total their amp draws. If this total exceeds 15 amps,
an additional breaker will be required. The total amps on each
breaker can not exceed 15 amps. Do not use breakers rated
over 20 amps.
It may be possible to tap into an existing breaker as long as
there is adequate capacity for the mat(s) and any additional
appliance, such as a hair dryer or vacuum cleaner. Avoid
circuits which have lighting, motors, exhaust fans, or hot tub
pumps due to possible interference.
STEP 3.2:
Install Electrical Boxes
SunStat Thermostat:
Install an extra-deep electrical box for the SunStat
thermostat. Follow the instructions included with the
SunStat for complete information on location and wiring.
SunStat Relay:
Install an extra-deep electrical box for any SunStat Relay(s).
The SunStat Relay is used when more than 15 amps must
be controlled by one SunStat thermostat. Follow the
instructions included with the SunStat Relay for complete
information on location and wiring.
Junction Boxes:
If a mat is to be located so its Power lead is not long enough
to reach the SunStat or SunStat Relay directly, a junction
box must be installed. Do not attempt to make a
connection to other wiring without a junction box. Use a
standard junction box with a cover, mounting it below the
subfloor, in the attic, in the wall, or in another location
easily accessible after all coverings are complete.
For construction with an existing wall or where the wall is
covered, cut the necessary openings to mount the electrical
boxes listed above. Wait to install the boxes until all wiring is
fed into these locations to make it easier to pull the wire.
Note: The SunStat sensor wire can be extended up to a
maximum of 50’. Follow the installation instructions
that are included with the SunStat for details.
Install an extra-deep single-gang box if
connecting one or two cables to the control.
Use a 4"-square deep box with a single-
gang mud ring cover if connecting three
cables, because the extra room is needed
for the wire, wire nuts, and control.

SunTouch TapeMat Installation Manual 9
Power lead
conduit
Wire Clip
Power lead
Sensor wire
Sensor wire
Conduit enclosing power lead.
If going in to an existing
wall, cut out dry wall and
chisel out bottom plate to
route wires to control.
STEP 3.3:
Bottom Plate Work
Drill or chisel holes at the bottom plate as indicated. One hole
is for routing the power lead conduit and the other is for the
thermostat sensor. These holes should be directly below the
electrical box(es).
STEP 2.4:
Install Power Lead Conduit and Thermostat Sensor
Power Lead Conduit:
The shielded power lead can be installed with or without
electrical conduit (recommended for added protection
against nails or screws) depending on code requirements.
Remove one of the knock-outs in the electrical box to route
the power lead. If electrical conduit is not required by code,
install a wire collar to secure the power leads where they
enter the box. If conduit is required by code, install 1/2"
(minimum) conduit from the bottom plate up to the
electrical box. For multiple power leads (multiple mats)
install 3/4" conduit.
Thermostat Sensor:
A floor sensor is included with the SunStat control. It can
be installed with or without electrical conduit depending
on code requirements. Conduit is recommended for added
protection against nails or screws. Do not place the sensor
in the same conduit as the power leads to avoid possible
interference. Open a separate knock-out in the bottom of
the thermostat box. Feed the sensor (and conduit, if used)
through the knock-out, down through the cut-out in the
bottom plate, and out into the floor where the heating
mat will be installed. If the sensor wire needs to be secured
to the wall stud, wait until after the mat and sensor are
completely installed on the floor.
Note: The sensor is located in the bottom of the
thermostat packaging.
STEP 3.4:
Rough-in Wiring
Install appropriate 12 or 14 AWG electrical wire from the
circuit breaker or branch circuit source to the SunStat
electrical box (and SunStat Relay box(es) if needed) following
all codes, see Table 5.
If SunStat Relay(s) are used, feed appropriate wire (see SunStat
Relay installation manual for size and type) between the
SunStat Relay(s) and the SunStat.
Phase 4: TapeMat Installation
STEP 4.1:
Floor Cleaning
The floor must be completely swept of all debris including
all nails, dirt, wood, and other construction debris. Make
absolutely sure there are no objects on the floor which might
damage the TapeMat wire.
Wet mop the floor at least twice to ensure there is no dirt or
dust. This will allow proper bonding of the mortar and proper
stick of the double-sided tape.
STEP 4.2:
Material
Make sure all of the correct materials have been purchased.
A general list of materials is found at the beginning of
this manual.
Verify the amount of mat supplied is the proper size for the
area to be heated before beginning the installation. Verify
thermostat location.

10 SunTouch TapeMat Installation Manual
TABLE 6:
MAT TURNS AND “FILLIN” TECHNIQUES
This table contains some of the common turns and techniques
used to layout around corners, angles, and built-ins.
Mat mesh
removed
Use hot glue to
attach wire to the oor.
Cut mat
C
ut mat
Roll
over
C
ut mat
Flip mat
over
Rotate
Installing in front of cabinets and toilets:
Install mat right up to the face of the
cabinet as shown above.
Mat can be installed under tile to
within 4"–6" from the wax ring, and
can slightly underlay the foot of the
toilet if need be (approximately 20"
from wall).
Fill-in Technique.
180° or Back-to-Back Turn. 90° or Flip Turn.
Carefully cut the orange mesh to make turns. Never cut, nick, or otherwise damage
the heating wire.
STEP 4.3:
Position the Power Leads
Carefully cut the tie binding the power lead coil. Do not nick
the braid covering the power lead.
Place the mat on the floor to ensure the power lead will reach
the SunStat electrical box or junction box installed earlier.
If the power lead will need to cross a long distance to reach
the control location, it may be possible to cut the mat mesh
and pull loose the length of heating wire needed.
Make sure the power lead factory splice is to be completely
flat and in the floor mortar, not in the wall.
STEP 4.4:
Test Fit the Mat
Roll out the mat, flipping it as needed to cover the intended
area. This is very important to ensure proper fit before
proceeding. If there is too much mat for the area it cannot
be cut shorter and heating wire cannot be routed into a wall,
under baseboards, or other similar areas. All heating wire
must be embedded in the floor mortar.
Install the mat approximately 4"–6" away from walls, showers,
tubs, toilets, drains, etc. Install in-line with vanity and counter
areas. Install roughly 18"–20" from back wall in toilet area.
DO NOT leave gaps between the mats. The heat will con-
duct only about 1-1/2" from the heating wire. Mat should be
installed continuously across the floor. Never install mats in
a fashion causing the heating wires to be any closer than 2"
from each other or to overlap.
To warm the maximum amount of floor area, it may be
necessary to make the mat(s) fit odd-shaped spaces, fit
into corners, and work around angles and built-ins. See
Table 6 for technique examples and the Appendix for full
layouts, additional techniques, and cautions.
Roll-over Turn.
CAUTION: Do not cut the heating wire to make it fit
the area. Doing so will cause dangerous overheating
and will void the warranty.

SunTouch TapeMat Installation Manual 11
STEP 4.5:
Secure the Mat to the Floor
After test-fitting the mat and deciding what technique
will be used to help fill any odd spaces, carefully cut the mesh
where needed.
Lay the mat down flat. Ensure it fits well and has no folds or
large ripples.
IMPORTANT: Securing the mat as flat as possible will help
make a smooth surface for spreading mortar.
Begin removing the liner from the double-sided tape along
one mat edge and press the tape down, ensuring the mat
lays flat.
Remove the liner from the double-sided tape along the
other mat edge and press the tape down. Pull on the mat as
needed to ensure it is flat as possible but be careful not to
pull the tape loose.
If an area of mesh does not lay flat enough, use a length of
the double-sided tape supplied in the Installation Kit, hot-
glue, or pneumatically applied staples to help. This may be
necessary at the ends of the mat. If staples are used, 3/8" x
1/4" chisel type are recommended. Do not staple closer than
1/4" (7 mm) from the heating wire. Be very careful not to
damage the heating wire.
DO NOT staple or apply tape over the heating wire. Damage
can result.
DO NOT use nails, duct tape, other types of tape, or other
unapproved fasteners to hold the heating wire or
mesh in place. Damage can result.
STEP 4.6
Use a digital multi-meter to measure the resistance between
the conductors of the power leads again. Record these
resistances in Table 4 under “After mat is secured in place”.
STEP 4.7
Connect the LoudMouth to the TapeMat power lead. If
multiple mats are used, connect them to the LoudMouth in
series (white-to-black). Only one white, black, and ground
lead should be connected to the LoudMouth. Refer to the
Appendix for control and LoudMouth wiring diagrams.
STEP 4.8
Feed the power leads through the conduit to the control
electrical box, leaving at least 6"-8" of free power lead. Chisel
a slot in the floor to recess the factory splice level with the
heating wire. Secure the factory splice with hot glue so it
cannot be pulled into the conduit.
It may be necessary to use a metal nail plate to protect the
power lead and sensor wire as they transition into the wall.
This will help prevent nail penetrations from drywall and
baseboards trim. Chisel a path for the power lead and factory splice. Use hot glue
to secure to the floor. Place a metal nail plate over the transition
point to protect the power lead and sensor wire.
Power Lead/
Heating Wire
Connection
Nail
Plate
Floor
Sensor

12 SunTouch TapeMat Installation Manual
STEP 4.9
Feed the sensor wire through the sensor conduit, leaving
at least 6"-8" of free lead length at the control electrical
box. Weave the sensor at least 1' into the mat area halfway,
between the heating wires, and secure it using hot glue. Do
not cross the heating wires. It may be necessary to chisel a
small section of the subfloor to accommodate the sensor,
depending on the thin-set thickness being used.
Top-Down view of TapeMat and the sensor entering wall.
Heating Wire
SensorTape
Conduit Power Lead Factory Splice
(in thin-set, not in conduit)
STEP 4.10:
Shower Application
Note: Acceptance of this application must be verified
by the local inspector or authority having
jurisdiction (AHJ). UL Listed to U.S. Standards only
for this application.
1. Refer to diagrams in the Appendix, especially page 17.
2. Never install SunTouch TapeMat in shower walls (or any
other wall).
3. Never make a field splice to mats installed in a shower.
4. Do not attempt to use anything other than a factory
approved component to repair the heating wire in any
way; serious hazard could result.
5. Use the double-sided tape or hot-glue to secure the mat.
Do not use staples or anything that will damage any
waterproofing membrane.

SunTouch TapeMat Installation Manual 13
6. Make a 1” wide notch in the curb to embed the heating
wire. Ensure the wire is not pinched or bent sharply. Do
not run the heating wire through a non-masonry curb,
causing it to overheat.
7. Embed mats in mortar and install only under tile,
stone, brick, or other masonry surface, per this
instruction manual.
8. Never begin the mat in a shower. The connection
between the power lead and the heating wire must
be fully embedded in mortar and located at least
1' (304.8 mm) away from shower openings and other
areas normally exposed to water.
9. Mat controls must be located at least 4' away from
shower openings. Controls cannot be exposed to water
or touched by a person while in the shower area.
10. All grout seams should be sealed after the mortar and
grout has completely cured.
11. As an option, consider installing a dedicated mat in
the shower area, separate from the rest of the floor.
This will increase control options, allowing less floor to
be warmed when the shower is not required. It will
also allow for better isolation of the shower area in the
off-chance a problem occurs.
STEP 4.11
Take photographs of the mat installation. This can be very
useful later during remodel work to help avoid possible wire
damage. Keep the photos with this installation manual and
provide to end user upon completion.
Phase 5: Floor Coverings
It is recommended to consult with professional flooring
installers to make sure proper materials are used and
proper installation techniques are followed. Please note, this
installation manual is not a structural or a floor coveirng
installation manual and is intended only for general guidance
as it applies to the SunTouch TapeMat product.
Illustrated floor schematics can be found in the Appendix for
additional reference.
When installing tile or stone, the Tile Council of North
America (TCNA) guidelines or ANSI specifications should be
followed as a minimum standard.
A latex-modified thin-set cement-based mortar and
grout is recommended instead of water-based multi-purpose
materials when installing a radiant product.
Do not use solvent based adhesives or pre-mix mortars
because they are not as heat resistant.
Select the proper size trowel for the installation of tile or
stone. We recommend a minimum 3/8" x 1/4" trowel. This
trowel works well for most ceramic tile. A thicker thin-set can
be used if required. Select the thin-set thickness in
accordance with the floor covering requirements.
For additional information on tile installation, please
contact TCNA at 864-646-8453 or visit their web site
at www.tileusa.com.
When installing floor coverings other than tile or stone,
follow industry and/or manufacturer’s recommendations.
Ensure the mat is first covered with a layer of self-leveling
cement based mortar, letting it cure fully before applying any
surface underlayment, floating wood or laminate flooring,
carpet, etc. The combined R-values of all floor coverings
over the mat should not exceed R-3. Higher R-values
will diminish performance. Consult the floor covering
manufacturer to verify compatibility with radiant electric
heat. Also, make sure nails, screws, or other fasteners do
not penetrate the floor in the TapeMat area. The wire can eas-
ily be damaged by fasteners penetrating the floor.
All floor coverings must be in direct contact with the
cement-based mortar encasing the mat. Do not elevate the
floor above the mortar mass. Do not install 2" x 4" wooden
nailers (sleepers) on top of a slab for the purpose of attaching
hardwood. Any air gap between the heating mat and the fin-
ished floor covering will drastically reduce the overall output
of the heated floor.
Care should be taken when laying area rugs, throw rugs, and
other surface products on the floor. Most products are okay
to use, but if in doubt, consult the product manufacturer for
compatibility. Do not use rubber backed products.
When placing furniture make sure an air clearance of at least
1-1/2" is available. Furniture able to trap heat can damage the
heating system, the flooring, and the furniture over time.
Locate power lead and factory connection to heating wire at least
1’ outside the shower area.
Heating Wire
Factory Splice
Shower Curb
Tile
Thinset Mortar
Notches in Shower Curb
(Minimum 1” wide, to avoid sharp
bends in cable and ensure cable is
fully embedded in mortar.)

14 SunTouch TapeMat Installation Manual
! CAUTION
Never bang a trowel on the Heating
Wire to remove excess mortar from
the trowel. This could damage the
heating wire.
DOUBLEPLYWOOD OVER FRAME FLOOR
Tile/stone or
laminate flooring
Tile/stone or
laminate flooring
Tile/stone or
laminate flooring
TapeMat
Plywood
Main Plywood Subfloor
Latex-Portland cement
mortar bond coat
Insulation (per International
Residential Code, Chapter 11)
Concrete slab with
rewire or rebar
Crack isolation membrane
TapeMat
Thin-set or self-leveling
mortar bed
Insulation (per International
Residential Code, Chapter 11)
Insulation (per International
Residential Code, Chapter 11)
Cement backerboard,
thick-set, or self-leveling
mortar bed
TapeMat
Thin-set
THIN-SET OVER SLAB ON GRADE
CEMENT BACKERBOARD OVER FRAME FLOOR
Type of Construction
Mortar Applications:
Thin-set and thick-set (self-leveling) mortar
applications are illustrated to the right.
a. If a backer board or plywood sheeting is
used to strengthen the floor, or if the mat
will be placed directly onto the slab, install
TapeMat in the thin-set mortar bond coat
above these materials.
b. If a thicker mortar bed, or self-leveling
concrete, is used to strengthen the floor,
Tapemat can be installed in either the mor-
tar bed (dry-set) or in the mortar bond coat
directly below the tile or stone.
TapeMat is generally installed above the
self-leveling mortar in a thin-set bond coat.
Use plastic lath instead of the typical metal
lath when installing in a self-leveling layer.
Self-leveling Mortar Applications:
These are appropriate applications if installing
engineered wood, vinyl, laminate, or carpet
floor coverings. Attach the TapeMat to the
subfloor or slab, then pour self-leveling mortar
1/4" to 1/2" thick according to manufacturer’s
specifications. Install floor covering after the
mortar has cured.
Special Precautions
Iso lation Membrane: Install the TapeMat
above the membrane, whenever possible,
unless recommended otherwise by the
membrane manufacturer.
Ins ulation: Insulation dramatically enhances
the performance and efficiency of
floor-warming systems. Do not install rigid
insulation directly above or below backer
board or mortar.
Mo saic Tile: When installing mosaic tile, it is
recommended to apply a two-step process.
First, embed the TapeMat in a thin mortar
bed (1/4"–3/8"), then thin-set the mosaic
tile according to typical practice.
Ex pansion Joints: Do not install heating mats
through an expansion joint. Install mats
right up to the joint, if necessary, but not
through the joint.

SunTouch TapeMat Installation Manual 15
Phase 6: Control Installation
Step 6.1:
Install the Controls
If it has not already been done, install an electrical box for the
SunStat and SunStat Relay. Do not forget to attach a single-
gang mud-ring to mount the SunStat if a 4” square box was
used. See Phase 3 for details.
Step 6.2
Refer to the wiring diagrams in the Appendix of this
manual for typical configurations.
Step 6.3
Read and follow the instructions included with the SunStat
thermostat and SunStat Relay for complete connection
instructions, requirements, and mounting.
Step 6.4
Make any final connections to the circuit breaker or branch
circuit source
Step 6.5
System Start Up
After all controls are installed, do not energize the system,
except to briefly test operation of all components (no longer
than 10 minutes). Do not put the system into full operation
until the tile or flooring installer verifies all cement materials
are fully cured (typically two to four weeks). See mortar
manufacturer’s instructions for recommended curing time.
NOTE: Most laminate and wood floor manufacturers
specify their flooring should not be subjected to
temperatures over 82 to 84F (27 to 28C). Check
with the flooring dealer or manufacturer and set
the thermostat appropriately.
Refer to the installation sheets provided with the controls
for proper setting. The system should now operate as
designed. Please leave this instruction manual, SunStat
instructions, and copies of photos of the installed heating
system with the end user.
Bottom plate
cut-outs
Power
supply
Sensor installed in floor
(equal distance between two heating wires)
electrical box
Single-gang Mud Ring
(if required)
Electrical conduit
Sensor wire
Mat power lead
Mat Mesh
Thin-set, thick-set,
thin-slab, or self-leveling
mortar bed
Tile, stone, or laminate
floor covering
SunStat Thermostat
Double-sided Tape
Heating Wire
General layout of the TapeMat installation

16 SunTouch TapeMat Installation Manual
Appendix
90° or Flip Turn
Roll-over Turn
180° or Back-to-Back Turn
Fill-in Technique
Types of turns
Step-by-step layout for a typical bathroom
1. 2. 3.
4. 5. 6.
7. 8.

SunTouch TapeMat Installation Manual 17
Toilet
Shower
Shower
Bath Tub
Bath Tub
Closet
Bathroom layout 1: One 2' x 20' mat
Bathroom layout 2: One 2' x 15' mat, one 2' x 60' mat
Vanity
Vanity
Doorway
Doorway
Control
Control
Control
One 2' x 15' mat
One 2' x 60' mat
Toilet
Install 4"–6" from walls.
Install mats right up to the face of the
cabinet. The heat only conducts about
1-1/2" from the wire.
Install mats 4"–6" away from wax ring
(18"–20") from back wall.
Fill in triangular areas by
removing wire from mat and
securing with hot glue..
Do not begin the mat inside the shower area. The
controls should NEVER be installed in the shower
area, or where anyone in the shower could touch
the controls. Install the controls a minimum of 4'
away from the shower area.
Never install the mat
in shower walls (or
any other walls).
Locate power lead and connection
to heating element outside the
shower area.
Toilet
IMPORTANT
See phase 4 for complete details
and Cautions. This application into
a shower area must be verified by
the local inspector or the authority
having jurisdiction.
Locate power lead and factory connection to heat-
ing wire at least 1' outside the shower area.
Heating Wire
Factory Splice
Shower Curb
Tile Thinset Mortar
Notches in Shower Curb
(Minimum 1” wide, to avoid sharp
bends in cable and ensure cable is
fully embedded in mortar.)

18 SunTouch TapeMat Installation Manual
Front Entryway
Sink
Small bath layout 2: One 3' x 8'-4" mat
Doorway
Doorway
Bath Tub
Vanity
Small bath layout 1: One 3' x 5' mat
Front entryway layout: Two 3' x 10' mats, one 3' x 5' mat
Control
Install mats right up to the
face of the vanity. The heat
transfers only about 1-1/2"
from the wire.
Control
Bath Tub
Control

SunTouch TapeMat Installation Manual 19
Ground
Black Black
Black
White
White White
Line 1
Load 1
Load 2
Line 2
120 or 240VAC
Sensor Wire
(no polarity)
TapeMat
(maximum 15 amps)
120/240 VAC
SunStat
Two or more
TapeMats
(maximum 15 amps)
Ground
Black Black
Black
White
White White
Line 1
Load 1
Load 2
Line 2
Sensor Wire
(no polarity)
120/240 VAC
SunStat
120 or 240VAC
120/240VAC Control Wiring Diagrams
Typical Wiring for multiple
Tapemats with SunStat
Control (120/240VAC)
20-amp circuit.
Note: All electrical work must be done by a qualified licensed
electrician in accordance with local building and electri-
cal codes, and the National Electrical Code (NEC), espe-
cially Article 424 of the NEC, ANSI/NFPA70 and Section
62 of CEC Part 1.
! CAUTION
Make sure 120 VAC is supplied
to 120 VAC mats and 240 VAC
is supplied to 240 VAC mats.
Otherwise, dangerous overheating
and possible fire hazard can result.
Ground
Black Black
Black
White
White White
Line 1
Load 1
Load 2
Line 2
120 or 240VAC
Sensor Wire
(no polarity)
TapeMat
(maximum 15 amps)
120/240 VAC
SunStat
Two or more
TapeMats
(maximum 15 amps)
Ground
Black Black
Black
White
White White
Line 1
Load 1
Load 2
Line 2
Sensor Wire
(no polarity)
120/240 VAC
SunStat
120 or 240VAC
Typical Wiring for one
TapeMat with SunStat
Control (120/240VAC)
20-amp circuit.

20 SunTouch TapeMat Installation Manual
Relout
2
3
4
5
RelinRelin
Relout
2
3
4
5
RelinRelin
Relout
Setback
Sensor
2
3
4
5
Relout Relin
Relin
Relout RelinRelin
Relout
120/240 VAC
SunStat Relay
120/240 VAC
SunStat Relay
Up to 10 SunStat Relays
can be connected to
one SunStat Cotrol
120/240 VAC
SunStat Control
Two or more120 VAC or
240 VAC Heating Mats
(maximum 15 amps)
Ground
Black Black
Black
White
White White
Line 1
Load 1
Load 2
Line 2
120 VAC or 240 VAC
Sensor Wire
(no polarity)
120/240 VAC
SunStat Control
Two or more120 VAC or
240 VAC Heating Mats
(maximum 15 amps)
Ground
Black Black
Black
White
White White
Line 1
Load 1
Load 2
Line 2
120 VAC or 240 VAC
Sensor Wire
(no polarity)
120/240 VAC
SunStat Relay
Diagram for connection of signal wire
between SunStat Control and Relays
Use size 18- to 24-gauge 2
conductor wire up to 100 feet
(30 m) in length to connect
SunStat to SunStat Relay.
Typical Wiring for SunStat
with SunStat Relay(s)
20-amp circuit for each SunStat and
SunStat Relay
! CAUTION
Make sure 120 VAC is supplied to 120
VAC mats and 240 VAC is supplied to
240 VAC mats. Otherwise, dangerous
overheating and possible fire hazard
can result.
Note: All electrical work must be done by
a qualified licensed electrician in
accordance with local building and
electrical codes, and the National
Electrical Code (NEC), especially Article
424 of the NEC, ANSI/NFPA70 and Section
62 of CEC Part 1.
SunStat Relay Connection Diagrams
Two or moreTapeMats
(maximum 15 amps)
Ground
Black Black
Black
White
White White
Line 1
Load 1
Load 2
Line 2
120 or 240 VAC
120 or 240 VAC
Sensor Wire
(no polarity)
120/240 VAC
SunStat
Two or moreTapeMats
(maximum 15 amps)
Ground
Black Black
Black
White
White White
Line 1
Load 1
Load 2
Line 2
120/240 VAC
SunStat Relay