Install Instructions

SunStat Thermostat

Factory Splice

Floor Sensor

WarmWire

Thin Set Mortar

Tile/Stone

A (-W) on the nameplate label

indicates a WarmWire cable

is approved for installation in

shower floors and/or benches.

STEP 5.5

If covering a bench seat in the shower with cable, secure it with hot glue or with HeatMatrix

or CableStrap located underneath waterproofing. Do not use fasteners that penetrate any

waterproofing membrane or waterproofing system. Use hot glue to secure a single run of

cable up the side of the bench riser. Fill in the seat area with cable. Then secure a single

run of cable down the riser if needed. Use an "s-shaped" curve to avoid sharp bends in the

cable at corners and help the cable to lay flat.

STEP 5.6

If the cable cannot exit the shower area, the end of the cable has a waterproof splice that

may be located in the shower area, fully embedded into the mortar like the heating cable.

STEP 5.7

If any part of the heating cable entering a shower area is damaged during installation, do

not attempt to repair it. A field repair or modification of the cable may result in serious

shock hazard.

Phase 6 - Final Steps

STEP 6.1

After the cable installation is completed, inspect the work. Make sure cable spacings are

correct and consistent, having no place where cables are less than 2" spacing, nor greater

than 4" spacing in the heated areas, no cables cross over each other, all the cables are

undamaged, and all areas to be heated are covered with cable.

STEP 6.2

Take resistance readings of the cable again to make sure it has not been damaged during

the installation. This is very important to do. Record these readings in the Cable and Sensor

Resistance Log (Table 4).

STEP 6.3

Lay cardboard, carpet, or similar material over the cables to protect them from damage until

the floor covering is installed.