Install Instructions

SunTouch UnderFloor Installation Manual 9
6. At the other end of the mat, place
a nail into the joist at 2” below the sub-
floor. Hang the fiber mesh of the mat
onto the nail. This will make it much
easier to staple the rest of the mat.
7. Continue stapling the mat mesh at
2” below the subfloor, every 4” to 6”.
Then remove the nail at the end that
held it up.
8. Raise the mat to the other joist and
staple the mat mesh 2” below the sub-
floor.
9. Using the same techniques, staple up all other mats.
Power Lead Installation
If not already done so, mount a junc-
tion box below the subfloor within
reach of the mat power leads. Install
more than one junction box, if needed,
for larger jobs. The junction box must
remain accessible in accordance with
electrical codes, so consider the loca-
tion of the junction box carefully should
the ceiling be finished after installation
of the mat(s).
Route the power leads from the
mat(s) to the junction box following
all electrical and building codes using
Junction box with multiple sets of mat lead wires, connected in parallel, and connected to the
power supply.
conduit and additional electrical boxes
where required.
For multiple mats, follow all electri-
cal codes concerning “box fill” maxi-
mums. Connect the leads in parallel
(black-to-black, white-to-white), and
not in series.
Connect the mat leads to the power
drop from the control electrical box or
SunStat Relay.
Again, do not overload the control.
The SunStat and SunStat Relay controls
must not be loaded with over 15 amps
of mats.
6.
7.
8.
9.