Ouellet OTR - Manual (Page 21)

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5. IMPORTANT!
The Therma Cable system must be controlled by a temperature control system.
If Therma Cable is to be used for floor warming, an electronic floor temperature
control featuring a floor sensor is recommended to ensure heat levels never exceed
the floor covering’s maximum temperature tolerance.
If the system is to be used for radiant heating, the room thermostat controls heat
and is reacting to room and not floor temperature therefore a floor covering with
greater temperature resistance must be used.
The room temperature control and floor temperature sensor must never be
installed where they will be exposed to sunlight or air drafts.
IMPORTANT!
The Therma Cable floor heating system must be connected to a ground fault
circuit interrupter (GFCI) when installed in a bathroom. Ouellet Canada Inc.
strongly recommends the use of a GFCI in all rooms featuring the
Therma Cable system.
Recommended temperature regulation devices:
1- Thermostat with floor sensor and integrated GFCI (floor warming only).
2- Rheostat dimmer switch with a GFCI.
3- Electronic ambient thermostat with a GFCI (radiant room heating).