Ouellet OTR - Manual (Page 23)

23
6.2 Installation
Q.7: Can I install one Therma Cable system on top of another?
A.7: NEVER. The system will overheat. Heating power must not exceed
12W/sq. ft. (130W/sq. m).
Q.8: Can Therma Cable be used for exterior snow melting?
A.8: No. Therma Cable is designed to provide comfort and heating in indoor
residential applications only.
Q.9: Is a GFCI necessary?
A.9: A GFCI is required in the bathroom. It is recommended for all other rooms.
Q.10: Is a floor sensor necessary?
A.10: Yes, to control the floor surface temperature, so that it does not exceed
the maximum temperature tolerated by the type of floor covering. It is
highly recommended to install two temperature sensors supplied with
the thermostat and the product selected, but ONLY ONE SENSOR must
be connected to the internal four positions connector (on ‘ In / Sensor ‘
locations C and D) of the thermostat, while the other can serve as a spare
one, if a malfunction of the first one appear in the event. It is important to
consider that a space between both sensors must be at least of 12’’ a part
of each other. Also, both temperature sensors must be located at the same
distance (1.5’’) between the spires of the heating cable.
Q.11: Can I connect two Therma Cable systems to the same thermostat?
A.11: Yes, and even more connected in parallel but the total power consumption
must not exceed the capacity of the thermostat or power unit which the
MAXIMUM CURRENT IS LIMITED TO 15 AMPS for each of them (Ex.:
300 ft² for 240 Vac and 150 ft² for 120 Vac). Please refer to the related
tables products to find out what is the amperage consumed by the chosen
product.
Q.12: What happens if the voltage applied is the wrong one?
A.12: Connecting a 120V product to a 240V/208V current will overheat the
system and lead to an overheating and failure. A 240V/208V product
connected to a 120V current will produce virtually no heat. It is therefore
very important to connect the right product to the right voltage.
Q.13: Can Therma Cable be installed over concrete?
A.13: Yes. Apply a concrete sealer before installing the Therma Cable system.See
Section 4.
Q.14: Can carpet be installed over Therma Cable?
A.14: Yes, if the system is completely embedded in self-levelling cement. You can
install low-pile carpet over the slab if the carpet’s thermal resistance does
not exceed R = 1.40 (RSI = 0.246).
Q.15: Can wood flooring be installed over Therma Cable?
A.15: Yes, you can install multilayer wood flooring (Engineered flooring),
provided its thermal resistance does not exceed R = 1.40 (RSI = 0.246).