Ouellet OTM - Manual (Page 24)

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Q.11 : Can I connect two Thermat systems to the same thermostat?
A.11 : Yes. You can even connect additional systems provided the connection is
parallel and total output does not exceed the thermostat’s capacities.
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 Thermat be installed over concrete?
A.13 : Yes. Apply a concrete sealer before installing the Thermat system.
See Section 4.
Q.14 : Can carpet be installed over Thermat?
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 Thermat?
A.15 : Yes, you can install multilayer wood flooring (Engineered flooring), provi-
ded its thermal resistance does not exceed R = 1.40 (RSI = 0.246).
Q.16 : Is the use of self-levelling cement mandatory when installing
ceramic tile?
A.16 : If the room is small, an experienced tiler can do a good job without using
self-levelling cement, but this method is not recommended. The heating
cable must always be completely embedded in cement or an equivalent
binder (cement glue, ceramic glue, self-levelling cement). If the room is
medium-sized or large, the use of self-levelling cement is strongly recom-
mended to ensure the ceramic is perfectly levelled.