IOM-WR-TapeMat 1526
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STEP 2.3:
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).
Power lead
conduit
Wire
Clip
Power
lead
Sensor wire
Sensor wire
If going in to an existing wall, cut out
dry wall and chisel out bottom plate
to route wires to control.
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:
The SunStat Control sensor 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.
STEP 2.5:
Rough-in Wiring:
Install appropriate 12 or 14 AWG electrical wire from the circuit breaker or branch circuit
source to the SunStat Control electrical box (and SunStat Relay box(es) if needed) following
all codes, see
Table 5
.
If SunStat Relay(s) are used, feed appropriate wire between the SunStat Relay(s) and the
SunStat Control. See SunStat Relay instructions for details of wire size and type.
