Installation step 5
Check the heater resistance with a digital multi-meter every half hour or so. If
the heater goes open circuit (no reading on the multi-meter)
DO NOT
CONTINUE
- call the technical helpline on 888-WARMFEET (927-6333).
Tile and grout
The thin set mortar and grout must include an additive for
flexibility and be suitable for use with underfloor heating.
Refer to the manufacturer’s instructions for usage.
Check that the space heating cable is fully taped and secure.
Tile as normal, taking care not to damage or dislodge the
space heating cable with the trowel or with the tiles. If
tiling with mosaic or similar tiles, it is advisable to cover
the space heating cable with latex self-leveling compound
before tiling to ensure a flat, smooth surface.
When selecting a trowel, we recommend 3/8” x 1/4” or greater.
When using a notched trowel, gently comb the adhesive in
straight lines in the same direction as the runs of the space
heating cable. The trowel should be used at an angle of
approximately 45 degrees to the floor.
Do not
allow the trowel to make contact with the space
heating cable while applying the mortar. Use sufficient
mortar to ensure that there are no voids or hollows under
the tile.
If a tile has been positioned incorrectly, take great care
not to damage the space heating cable when lifting.
Remember that tiles must not be lifted once the mortar is
dry, as this will damage the space heating cable.
Do not
store or cut tiles on top of the space heating cable.
Do not
allow chippings or dust to contaminate the floor during
tiling.
Care must be taken not to damage the space heating cable
during the tiling process. Use a piece of carpet, cardboard or
a dustsheet as a “crawl-board” to prevent the space heating
cable from being damaged by your feet or knees during the
tiling process.
Grout the floor as soon as possible as per the ceramic tile
adhesive manufacturer’s instructions. The heater should
not be made fully operational until such time as the tile
or concrete installer verifies that the cement materials
are fully cured (1-3 weeks).
Fill out your warranty card.
A
Use correct adhesive and grout
B
Tile as usual
C
Do not store tiles on heater
Installation step 6
23
Summary of Contents for USDW360
Page 9: ...9 Making electrical provision for the heater ...
Page 10: ...10 Heater Information ...
Page 11: ...11 ...
Page 14: ...Wiring configurations 14 ...
Page 26: ...26 NOTES ...
Page 28: ......