6
Electrical Conduit
Local electrical codes often require the power leads be installed inside
a metal or plastic conduit when running behind the wall from the foil
mat to the control device. When using an in-fl oor sensor, if local code
requires the low voltage wires be housed in conduit, it must be a
separate conduit from the conduits used to house the power leads
(high voltage).
Junction Box
If multiple foil mats are used, it can be easier to run the cold lead
wires to a junction box fi rst, and then connect the junction box to the
thermostat.
Duct Tape
Tape is needed to hold the foil mats in place as the fl ooring is installed.
Any brand of Duct tape can be used.
Off-Cuts of Cardboard or Carpet Scraps
To protect the foil mats during the installation.
THE SAFETY OF THE GFCI:
Environ II panels MUST be connected to the electrical system through
a Ground Fault Circuit Interrupter (a “GFCI”). The WarmlyYours Smart-
Stat incorporates a GFCI. If you are not using the SmartStat, ensure
that the branch circuits that supply your panels are GFCI-protected, or,
if possible, a dedicated GFCI is incorporated in each circuit supplying
your panels.
This requirement is critical to the safe operation of your
Environ II panel.
NOTHING ON TOP:
Environ II panels must not be installed under cabinets or other fi ttings
or furniture that will be permanently installed and attached to the fl oor.
Built-in cabinets and other furniture with solid bases must not be placed
over the panels. More specifi c details are contained in the “Restrictions
on Furniture Placement” sections later in this Installation Manual.
NO OTHER HEATERS UNDERNEATH:
Environ II panels must NOT be installed on top of other in-fl oor radiant
heating systems (for example hydronic or in-cement systems) UNLESS
the other system is permanently disconnected in such a way that it
cannot be inadvertently switched on while the Environ II panels are
also in use. Similarly, Environ II panels must also NOT be installed on
fl oors where radiant ceiling heating panels are used in the room directly
below where the Environ II panel is installed.
NEVER IN DIRECT CONTACT WITH CEMENT:
Environ II panels must not be installed in thinset cement, or in direct
contact with a cement or concrete subfl oor or slab. There must always
be an underlayment pad under Environ II panels.
SPECIAL LOCATIONS:
Environ II panels must ONLY be installed INDOORS, and MUST NOT
be installed in “HAZARDOUS LOCATIONS” or “WET” areas, as defi ned
in the National Electrical Code.
HOW THICK IS THE PANEL:
Environ II panels are less than 1/16” thick. The power supply cord comes
in 2 sizes: 1/4” (6mm) diameter round or 9/64” x 13/32” (4mm x 10mm)
fl at. A section of the carpet cushion or underlayment pad is removed
during installation so that the power supply cord cannot be felt under the
carpet or laminate fl oor. Since the thickness of the panel is negligible,
no allowance needs to be made for it when calculating fl oor levels and
height differences across thresholds. When installing under laminate
a channel may have to be chased into the subfl oor to avoid any fl oor
levelling problems.
