WarmlyYours TempZone Floor Heating Cable (Twin) - Manual (Page 9)

Electrical Considerations SECTION 4
6
4.1 Floor Sensors and Temperature Control
Floor Sensor (not required for all systems)
Systems using a Smartstat™ Programmable Thermostat or Easystat™ Thermostat may require a low-voltage floor sensor.
Carpet or laminate flooring manufacturers may require the use of a low-voltage sensor with their floor covering. Check with
the manufacturer for specific recommendations.
This sensor is embedded in the floor and monitors the floor temperature. Check the ohms reading of the sensor wire before
and after installation to make sure it has not changed. Most sensor wires have an ohms reading of 8,000 to 20,000 Ω,
and your ohmmeter must have a 20 kΩ setting for this measurement. The floor sensor should be centered in between two
resistance wires, leaving approximately 1.5 inches on either side and extending about 6 inches into the heated area. Avoid
placing the sensor in an area affected by a draft, a radiator or other heat source, or the sun.
A second, backup sensor may be installed and can be purchased separately.
The sensor cable should be routed to the thermostat and installed on the wall at a suitable operating height.
Do not allow any other cable to overlap the sensor cable. When heating laminate and carpeted floors (U.S. only), the
maximum temperature setting limit on thermostat should not exceed the flooring manufacturer’s recommendations.
Route TempZone™ Floor Heating Cable (Twin) lead wires to a junction box or to the thermostat. Never connect the floor
heating cable to other cables. The thermostat and the cable lead wires must be connected in parallel--not in series.
Type of Wire Color
120 V Yellow and Black
240 V Red and Black
Floor Sensor Black