Jacuzzi Dome For Shower Surround System None - Manual (Page 8)

1. Select Thermostat / Switch Control
A thermostat, a voltage adjuster or a switch may control the system. The selected device
must have the appropriate voltage, current and agency approvals for the location in which it
is being installed. Consult with your local electrical professional.
• A thermostat with a floor temperature sensor is recommended since this will control the
FLOOR temperature at a comfortable level.
• Voltage adjusters, such as light dimmers typically used for incandescent lights, can
also be used to control the cables. These devices adjust the voltage applied to the
cables, which in turn adjust the heat output of the cables, which in turn adjust the
output of the floor. These units usually provide satisfactory control, but floor temperature
can drift if the thermal conditions of the floor in the room change.
• Other control options, such as room ambient thermostats, light switches, etc., are
NOT recommended as these will not maintain a comfortable floor temperature.
2. Plan Tiling Method
Do not install mat at this time.
TILE TIPS
To minimize potential tile cracking, it is important that the subfloor on which the
tile is to be laid is sufficiently rigid.
• It may be necessary to apply an underlayment such as backerboard and / or mesh and mortar
to achieve a solid application surface to ensure the floor is stable, smooth and clean. Tile
experts typically require a 1
" thick subfloor base for ceramic tile. Consult your local tile service
center, the Tile Council of America, or the Tile, Terrazzo and Marble Association of Canada for
methods and materials.
• Moisture barriers are often used to contain large water spills in bathrooms. These barriers are typi-
cally a waterproof thin film (max. 0.080 " thick) laid on the floor; any necessary joints will be
sealed with an appropriate waterproof adhesive. These barriers can be used in conjunction with
Jacuzzi floor warming systems by laying the mat on the floor first, then covering with a scratch coat.
The moisture barrier is then laid on top of the scratch coat, and the flooring completed in the
usual manner. The heat will not usually affect moisture barriers, but you should check with the
manufacturer to be certain.
• For ease in mortar troweling, lay cables along the length of the room.
• If using metal mesh, always apply a scratch coat prior to laying mat - the metal mesh can be
sharp enough to cut the heating cable.
• For optimum performance, the top of the heating cables should be a maximum of 3 /
4
" below the
finished floor surface. However, if the floor is insulated below, it is possible to increase this depth
to 2
1 /
2
".
• Always keep a few spare tiles in case a repair is necessary at some future date.
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