S
ST
TE
EP
P 11..11::
IIn
nsstta
allll G
GF
FC
CII B
Brreea
ak
keerr
((O
Ov
veerrccu
urrrreen
ntt P
Prro
otteeccttiio
on
n))
The SunTouch mat must be pro-tect-
ed by a ground fault circuit interrupter
(GFCI). This can be done either by the
internal GFCI in the SunTouch FloorStat
(as long as it directly controls the mat)
or an indicating-type GFCI
circuit breaker. This GFCI serves as a
local disconnect.
Note: Follow all local building and
electrical codes.
Note: It is possible to branch from
an existing circuit, but this is not
recommended. Please consult with a
qualified 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 heating
mat. (Depending on local codes, you
may need multiple breakers for systems
larger than 20 amps.)
Typical Amperage Requirement:
120 VAC SunTouch mats:
0.1 amps per sq.ft., or
10 amps per 100 sq.ft. of mat.
240 VAC SunTouch Mats:
0.05 amps per sq.ft., or
5 amps per 100 sq.ft. of mat.
S
ST
TE
EP
P 11..2
2::
IIn
nsstta
allll E
Ex
xtteerrn
na
all
C
Co
on
ntta
acctto
orr ((rreella
ay
y))
Depending on the amperage require-
ments of the mat(s), an external contac-
tor may be required. Consult with an
electrician to determine the type and size
of contactor. Do not load the FloorStat
control with more than 15 amps. Be sure
to protect this contactor circuit with a
GFCI breaker.
S
ST
TE
EP
P 11..3
3::
IIn
nsstta
allll E
Elleeccttrriicca
all
B
Bo
ox
xeess
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 or
basement).
T
Th
heerrm
mo
osstta
att::
Install a 4"-square,
2-1/8" deep electrical box with a
1-gang mud ring. Electrical boxes
should be located on interior walls, typi-
cally 60" from the floor, according to
NEC or other local code requirements.
Note: The FloorStat sensor wire
can be extended up to a maximum of
50', if necessary.
S
ST
TE
EP
P 11..4
4::
B
Bo
otttto
om
m P
Plla
attee W
Wo
orrk
k
Drill or saw holes at the bottom plate
as indicated at right. One hole is for
routing the power leads or conduit and
the other is for the thermostat sensor.
These holes should be directly below the
electrical box(es) (see photos at right).
S
ST
TE
EP
P 11..5
5::
IIn
nsstta
allll P
Po
ow
weerr L
Leea
ad
d
C
Co
on
nd
du
uiitt a
an
nd
d T
Th
heerrm
mo
osstta
att S
Seen
nsso
orr
P
Po
ow
weerr L
Leea
ad
d C
Co
on
nd
du
uiitt::
The armored
power lead can be installed with or with-
out electrical conduit depending on code
requirements. In either case, remove one
of the knock-outs in the 4" box to route
the lead. If electrical conduit is not
required by code, install a wire collar to
secure the 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, which will accom-
modate multiple power leads.
T
Th
heerrm
mo
osstta
att S
Seen
nsso
orr::
A floor sensor
comes with our FloorStat control. It can
be installed in a conduit separate from
the electrical power lead although this is
not necessary. If a conduit is installed,
the tip of the conduit should be metallic
in order for the sensor to give a true
temperature reading. Open a second
knock-out in the bottom of the thermo-
stat box. Feed the sensor (and conduit)
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 you have the thermostat and
sensor, install the sensor now, but wait
to install the thermostat until after the
mat is installed.
Note: The sensor is located in the
thermostat packaging.
S
ST
TE
EP
P 11..6
6::
R
Ro
ou
ug
gh
h--iin
n W
Wiirriin
ng
g
Install appropriate electrical wire
(conductor) from the power source and
breaker protection to the thermostat fol-
lowing all codes. Leave 6"–8" extra wire
at the thermostat box. Refer to the
Typical Wiring Diagrams at the end of
this manual for help.
M
Ma
att A
Am
mp
peerra
ag
gee R
Reeq
qu
uiirreem
meen
nttss
Mat Size
Square Footage
Amp Draw
112
20
0 V
VA
AC
C,, 112
2""--w
wiid
dee m
ma
att
12" x 10'
10 sq. ft.
1.0
12" x 15'
15 sq. ft.
1.5
12" x 20'
20 sq. ft.
2.0
12" x 25'
25 sq. ft.
2.5
12" x 30'
30 sq. ft.
3.0
12" x 35'
35 sq. ft.
3.5
12" x 40'
40 sq. ft.
4.0
12" x 45'
45 sq. ft.
4.5
12" x 50'
50 sq. ft.
5.0
112
20
0 V
VA
AC
C,, 2
24
4""--w
wiid
dee m
ma
att
24" x 5'
10 sq. ft.
1.0
24" x 10'
20 sq. ft.
2.0
24" x 15'
30 sq. ft.
3.0
24" x 20'
40 sq. ft.
4.0
24" x 25'
50 sq. ft.
5.0
24" x 30'
60 sq. ft.
6.0
24" x 35'
70 sq. ft.
7.0
24" x 40'
80 sq. ft.
8.0
112
20
0 V
VA
AC
C,, 3
36
6""--w
wiid
dee m
ma
att
36" x 5'
15 sq. ft.
1.5
36" x 6'8"
20 sq. ft.
2.0
36" x 8'4"
25 sq. ft.
2.5
36" x 10'
30 sq. ft.
3.0
36" x 15'
45 sq. ft.
4.5
36" x 20'
60 sq. ft.
6.0
______________________________________________
2
24
40
0 V
VA
AC
C,, 112
2""--w
wiid
dee m
ma
att
12" x 20'
20 sq. ft.
1.0
12" x 30'
30 sq. ft.
1.5
12" x 40'
40 sq. ft.
2.0
12" x 50'
50 sq. ft.
2.5
2
24
40
0 V
VA
AC
C,, 2
24
4""--w
wiid
dee m
ma
att
24" x 10'
20 sq. ft.
1.0
24" x 15'
30 sq. ft.
1.5
24" x 20'
40 sq. ft.
2.0
24" x 25'
50 sq. ft.
2.5
24" x 30'
60 sq. ft.
3.0
24" x 35'
70 sq. ft.
3.5
24" x 40'
80 sq. ft.
4.0
24" x 45'
90 sq. ft.
4.5
24" x 50'
100 sq. ft.
5.0
24" x 60'
120 sq. ft.
6.0
24" x 70'
140 sq. ft.
7.0
24" x 80'
160 sq. ft.
8.0
2
24
40
0 V
VA
AC
C,, 3
36
6""--w
wiid
dee m
ma
att
36" x 10'
30 sq. ft.
1.5
36" x 13'4"
40 sq. ft.
2.0
36" x 16'8"
50 sq. ft.
2.5
36" x 20'
60 sq. ft.
3.0
36" x 30'
90 sq. ft.
4.5
36" x 40'
120 sq. ft.
6.0
P
Ph
ha
assee 11.. E
Elleeccttrriicca
all R
Ro
ou
ug
gh
h--iin
n..
R
Reeffeerr tto
o a
allll d
drra
aw
wiin
ng
gss o
on
n p
pa
ag
geess 1111,, 116
6,, a
an
nd
d 117
7 b
beeffo
orree b
beeg
giin
nn
niin
ng
g eelleeccttrriicca
all w
wo
orrk
k..
SunTouch Space Warming Manual
5
Power lead
conduit
Power
lead
conduit
Floor sensor
conduit
Power lead
NailTite
Wire Clip
Sensor wire
Power lead
Sensor
wire