I had to replace my Flextherm controllers for my in-floor electric heat system under the tiles in a main bathroom and kitchen area. The controllers were 10 years old and all had failed at between 3 and 5 years. A quick call to suppler revealed that yes they tended to fail but had a new improved version, the FLP 35. I didn’t want to change brands ( but I should have just to spite the supplier.) The original heating wires and sensors were still OK. The controllers were available on Amazon.ca for about $80 US each.
Here is what I found: All the wiring terminals were clearly marked on both the old module and new module. There are two supply line wires labeled L1 and L2. It was important to keep these properly in their proper terminals. The two load wires can be mounted in the two load terminals, and polarity does not matter. The two sensor wires are mounted to the sensor wires and polarity does not matter.
For those uncomfortable with wiring please use an electrician. The job went well and works great. Programing is pretty easy. I set my temp readout to degrees C..
Here are some shots with the new unit to the right. A third photo shows the “ out of the house mode” and the floor is cooling from the previous “morning setting” of 25C back to the “ out of house mode” of 22 C.
Here is what I found: All the wiring terminals were clearly marked on both the old module and new module. There are two supply line wires labeled L1 and L2. It was important to keep these properly in their proper terminals. The two load wires can be mounted in the two load terminals, and polarity does not matter. The two sensor wires are mounted to the sensor wires and polarity does not matter.
For those uncomfortable with wiring please use an electrician. The job went well and works great. Programing is pretty easy. I set my temp readout to degrees C..
Here are some shots with the new unit to the right. A third photo shows the “ out of the house mode” and the floor is cooling from the previous “morning setting” of 25C back to the “ out of house mode” of 22 C.
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