Manual

SunTouch WarmWire Installation Manual 11
the floor with adhesives. Do not use fasteners that penetrate any waterproofing
membrane or waterproofing system. Fill in the floor area with cable. Around the
drain leave at least 2” spacing from the edge of the flange. Make sure cable is not
placed where door hardware, handrails, or other items may mount to the floor.
STEP 5.26 If covering a bench seat in the shower, cut lengths of strap and secure
to the top surface of the seat with adhesives. 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.
STEP 5.27 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 5.28 If any part of the heating cable entering a shower area is damaged dur-
ing installation, do not attempt to repair it. A field repair or modification of the
cable may result in serious shock hazard.
Final Steps
STEP 5.29 If a second cable is to be installed in the area, all power leads must come back
to the control, or to a junction box and then to the control. NEVER run power leads across
heating cables, under baseboard areas, or other potentially damaging areas. Never join two
cables in series.
STEP 5.30 To secure long lengths of heating cable, place additional, short lengths of the
strap at 3–4-ft. intervals. Spray the back of the strap with a high-tack adhesive, and slide the
strap, upside down, under the cables. Turn the strap over when it is positioned and adhere
to the floor. Press the tabs down over the cables. If a spray adhesive was not used, carefully
secure these short lengths of strap to the floor without damaging the cable.
STEP 5.31 After the cable installation is completed, inspect the work. Make sure all tabs are
pressed down, cable spacings are correct, no cables cross over each other, all the cables are
undamaged, and all areas to be heated are covered with cable.
STEP 5.32 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 S ensor Resistance Log (page 6).
STEP 5.33 (optional) With the heating portion of the cable fully installed, it is recommend-
ed that the cable be temporarily connected to the power source and allowed to heat for
several minutes. After the cables begin to feel warm to the touch, disconnect the power.
STEP 5.34 Lay cardboard, carpet, or similar material over the cables to protec t them from
damage until the floor cover ing is installed.
SunStat Control
Factory Splice
SunStat Sensor
WarmWire
CableStrap
Thin Set Mortar
Tile/Stone
WarmWire models ending in “-J” on the UL tag can be
installed in shower floors and/or benches.