10
When selecting heating mats remember:
Do not exceed 15 amps through a single thermostat or circuit relay.
Select either 120 VAC or 240 VAC depending on the local availability. Never
mix voltages on the same circuit.
Avoid loading circuit breakers to more than 80% of their capacity. This means
a maximum of 12 amps on a 15 amp breaker.
If the calculated size is not available, don’t use a larger mat, use the next
smallest size. Remember that the heating ribbon must never be cut shorter
to
fi
t.
Make sure an appropriate subfloor material has been installed in accordance
with the floor covering, construction requirements, and all local building
codes and regulations. Warmset mat systems can be installed over a variety
of subfloors. Make sure that your chosen subfloor is compatible with cement
adhesives. Common subfloor materials are plywood, existing tiles, cement,
various insulations, and concrete slabs.
When selecting multiple mats, pay close attention to the total current
load. Try to design your system so that it does not exceed 80% of the
rated current of the breaker.
Use a Warmset thermostat (or equivalent) to operate the system. These
thermostats must be purchased separately and are equipped with a
ground fault circuit interrupter (GFCI) that will protect the system in case
of fault. Warmset thermostats have the following specifications:
They are designed for electric in
fl
oor heating.
They are able to accept the chosen voltage (120-VAC or 240-VAC).
They have a rated power of 15 A.
They contain a GFCI and include a floor sensor.
They are UL listed for both Canada and the US.
01
Before Beginning
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