Instructions / Assembly

9
Step 1 -
Electrical Supply
The installation of electrical systems presents risks of fire and
electrical shock which can result in personal injury. All electrical
connections should be carried out by a qualified electrician in
accordance with the National Electrical Code and all local Codes. For
installations in Canada, refer to relevant sections in the CEC.
The heater MUST be connected to the electrical system through a
UL/cUL certified Ground Fault Circuit Interrupter (“GFCI”). If you are
not using a thermostat with an integral GFCI, ensure that the branch
circuit supplying your heaters is GFCI protected and if possible, use
a dedicated GFCI protected circuit to supply each heated zone. This
requirement is critical to the safe operation of the heater.
For smaller areas, you may be able to utilize an existing circuit. In
most cases, however, you will need a separate dedicated circuit to
power the Warmup heating cables.
NOTE: The power leads must be protected where they leave the floor
by a suitable UL/cUL certified conduit.
NOTE: A UL/cUL certified junction box is required if more than two
heaters are being installed.
NOTE: If conducting an insulation resistance test on the supply to
the thermostat, the thermostat and heaters must be isolated or
disconnected. This is to prevent the thermostat and heater(s) from
being exposed to test voltages that exceed its specified limit.
Warmup
Thermostat
Coldtail joint recessed
into the membrane
& subfloor. Coldtail
connected to the
thermostat
Termination Joint
recessed into
the membrane &
subfloor.
Coldtail installed
in UL/cUL certified
conduit.
Floor Sensor 12” into heated
area. Floor sensor connected
to thermostat