King Electrical Floor Heating Cable Installation Manual
18
9.1
The floor sensor must be positioned exactly halfway
between two heating cables to accurately read the
floor temperature. Place the sensor bulb at least
12” into the heated area. Mark the spot on the floor
where the sensor bulb will be located.
STEP 9: Install the floor sensor
9.3
Use a fish tape or pull string to pull the sensor
wire to the electrical box, but not in the box.
IMPORTANT TEST 2: Test the cable resistance, cable
insulation and floor sensor now
that the cable is installed on the
floor. Record the readings on the
cable label and the data table on
page 6.
9.2
To make sure the sensor bulb will not create a high
spot in the floor, chisel a .25” channel into the floor
and lay the sensor bulb into the channel. Apply hot
glue to secure the bulb into place.
Position floor sensor halfway
between the heating cables
Test cable before embedding
STEP 10: Apply scratch coat
Scratch coat application
10.1
Apply a scratch coat of thin-set or self-leveling mortar
uniformily over the entire floor area. Make sure the
heating cables are completely embedded. Follow the
compound manufacture’s instructions.
10.2
Use a plastic straight edge trowel and cover the entire
areas that don’t have cable to maintain uniform height.
10.3
Apply the mortar in the same direction of the cable runs
to minimize lateral movement.
IMPORTANT TEST 3: TEST THE CABLE RESISTANCE, CABLE
INSULATION AND FLOOR SENSOR
RESISTANCE TO BE SURE NO DAMAGE
OCCURRED DURING THE THIN-SET
APPLICATION. RECORD THE READINGS
ON THE CABLE LABEL AND IN THE DATA
LOG ON PAGE 6.
