Installation Guide

THERMOFILM® – The complete underfloor heating solution for all wood & laminate floors.
Thermosoft International Corporation Installation Manual: ThermoFilm®
Page 13
INSTALLING VAPOR BARRIER & MAKING CONNECTIONS
Laying Poly Vapor Barrier
The installed THERMOFILM must be covered
with the polymer vapor barrier to provide
optimum moisture and additional
mechanical/electrical protection.
To install, roll out the vapor barrier, cut to length
and overlap adjacent pieces by a minimum of 4”
(fig.7). Tape along the entire length of the
overlap using duct tape. Always remember to
cover the entire floor with the vapor barrier,
even unheated areas.
Making The Electrical Connections
Please note the following steps must only be
carried out by a qualified electrician.
If connecting several mats, all connections must
be done in PARALLEL.
Using the graph paper supplied draw a sketch
showing the approximate position, width and
length of each THERMOFILM together with the
thermostat sensor position and number each of
the elements on the drawing.
THERMOFILM leads can be connected together
using Wago connectors. A separate connector is
used for the live and neutral connections. A
single pair of connectors will connect 4
THERMOFILMs to the thermostat (fig.9a).
To connect up to 7 elements, 2 pairs of
connectors will be required with each pair being
connected together using a suitable link wire.
Cut the lead wires inside the junction box to
approximately 4”. Carefully strip back 0.5” of
the cable insulation taking care to completely
remove the clear inner insulation.