Ouellet OWC-R - Manual (Page 23)

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Q.9: Is it mandatory to have a ground fault circuit-breaker-detector?
R.9: Although Canadian regulations in effect do not require the installation of a ground fault circuit-breaker/
detector, we highly recommend its use for concrete cable applications. In the United States, a ground fault
circuit interrupter (GFCI) must be used with this heating device in bathrooms and in hydromassage bathtub
locations as long as any others concrete cable installations.
Q.10: Must we have a temperature sensor?
A.10: Yes. This will control the floor surface temperature so it does not exceed the maximum temperature
allowable for the type of floor covering used. Although it is not mandatory to have a temperature sensor when
the system is used with an ambient air thermostat, Ouellet Canada Inc. recommends using a temperature
sensor as well.
Q.11: Can two OWC-R concrete cable systems be connected to the same thermostat?
A.11: Yes, (more if need be) parallel-connected if the total capacity does not exceed that of the thermostat.
Q.12: What happens when the voltage applied is the wrong one?
A.12: A product intended for 240/208V connected to 347V: there will be overheating and then a breakdown will
occur. It is therefore very important to connect the product to the proper voltage.