Tz custom fit manual_5, Electrical tests, Installing the mat – WarmlyYours TempZone Custom Mat User Manual
Page 5

Electrical Tests
Check the resistance of the mat. The resistance for 120V mats is measured between the black and white conductors; the
resistance for 240V mats is measured between the red and black conductors. The resistance value measured should be
+/- 10% of the resistance value noted on the rating label.
Test insulation integrity by connecting a resistance meter across the black lead and the ground braid. The value should be
infi nite; depending on the type of meter used, the screen may be blank or display OL.
Measure the resistance across the two conductors of the temperature sensor, the resistance value will change with
temperature, as such it may read anywhere from 8,000-14,000 ohms.
If there are problems with any of these tests, contact WarmlyYours before proceeding further.
Once the above is complete, carefully roll the mat back up and have ready for the next step
Installing the Mat
IMPORTANT
Take care not to damage the mat during installation, avoid placing heavy equipment or pails of mortar on the mat.
Using square notch trowel, 1/4” x 1/4” or larger (e.g. 3/8” x 3/8”) apply a layer of thinset to the subfl oor area which will
be covered by the WarmlyYours mat. If the subfl oor area is particularly large, it may be necessary to apply the thinset in
sections. Carefully roll the mat onto the thinset layer.
The entire mat must be in contact (embedded) with the thinset layer. To ensure complete contact use a rubber grout fl oat
to press the mat into the thinset. To check the bond between the mat and thinset peel up an edge of the mat, the mat
should look at least 90% covered with thinset material. Check that the splices and cold leads are in the proper positions.
Level any adjacent thinset areas not covered by the mat with a trowel. To avoid subsequent tiling problems, the adjacent
areas must be level with the top of the mat surface.
If there is more than one mat being installed, ensure the edges of the mats are butted up against each other, this ensures
even heating across the fl oor. Run the cold leads into the electrical junction box and protect at the sill plate with a guard
plate Conduct electrical tests as previously described. If there are any problems contact WarmlyYours before proceeding
further. Your installation may require inspection at this point; consult with your local building and electrical inspection
authorities.