Installation Guide
Thin mats
Installation Guide
Thin mats
1
Introduction
Thin mats are floor heating elements,
based on heating cables mounted with
tape on self adhesive mesh for floor heat-
ing only.
To get the full installation guide, warranty
registration, product information, tips &
tricks, addresses, etc. visit
www.devi.com
and
www.gb.manuals.devi.com
.
Symbol description referring
to product marking.
Direct floor heating:
Installation in concrete:
2
Safety instructions
Thin mats must always be installed ac-
cording to local building regulations and
wiring rules as well as the guidelines in
this installation manual.
• This appliance can be used by children
aged from 8 years and above and per-
sons with reduced physical, sensory or
mental capabilities or lack of experience
and knowledge, if they have been given
supervision or instruction concerning
use of the appliance in a safe way and
understand the hazards involved, by a
person responsible for their safety.
• Children shall not play with the
appliance.
• Cleaning and user maintenance shall not
be made by children without supervision.
• De-energize all power circuits before
installation and service.
• The screen from each heating element
must be connected to earth in accord-
ance with local electricity regulations.
• Residual current device (RCD) protection
is required. RCD trip rating is max. 30 mA.
• Thin mats must be connected via a
switch providing all pole disconnection
that can be locked in the off position.
• The thin mat must be secured with a
correctly sized fuse or circuit breaker
according to local regulations.
• Thin mats must always be fully cov-
ered with non-flammable material e.g.
concrete, screed or tile glue by at least
5 mm incl. tiles.
• Thin mats must always be controlled by
a thermostat that limits the floor tem-
perature to max. 35 °C (DEVIreg™ Smart,
DEVIreg™ Touch, DEVIreg™ Opti or
DEVIreg™ 530M).
• Never exceed the maximum heat density
(W/m) for the actual application.
• In case of a wooden subfloor, the maxi-
mum installed output is 100 W/m².
• On concrete subfloor the maximum of
200 W/m² is allowed if: the thickness of
the concrete covering above the heating
element, is more than 4 cm (40 mm).
• Thin mats are not to be interconnected.
• All thin mats in the same room must
have the same heat density (W/m2)
unless they are connected to separate
floor sensors and thermostats.
• The enclosed label must be filled in
and placed adjacent to the distribu-
tion board, describing location of the
thin mat.
• If supply cord is damaged it must be
replaced by the manufacturer, its service
agent or similarly qualified persons in
order to avoid hazard.
The presence of a thin mat must
• be made evident by affixing caution
signs in the fuse box and in the distribu-
tion board or markings at the power
connection fittings.
• be stated in any electrical documenta-
tion following the installation.
3
Installation guidelines
• It is not recommended to install thin mats
at temperatures below –5 °C.
• The subfloor construction must be
secure to avoid relative movement after
installation.
• Prepare the installation site properly by
removing sharp objects, dirt, etc.
• If walking on the elements is necessary
during installation and carefully purring
of screed, only use soft shoes.
• Be careful not to damage the thin mat
with sharp tools, shovel, bucket etc.
• Minimum distance between heating ca-
bles; heating cable and conductive parts;
heating cable and other heating sources
such as hot water pipes and chimneys,
must be at least 50 mm.
• Heating cables may not touch or cross
themselves or other heating cables.
• Heating cable bending diameter must be
at least 6 times cable diameter.
• The thin mats are not to be installed on
irregular surfaces.
• The thin mat must be fully embedded in
screed (fine concrete).
• Do not lay thin mats under walls and
fixed obstacles.
• Do not place objects that will cause a
thermal block e.g. furniture, thick carpets,
etc. Min. 6 cm air space is required.
• The flooring must not have a thermal
insulation value of more than
R < 0.18 m2K/W corresponding to 1.8 Tog.
• Keep thin mats clear of insulation material,
other heating sources and expansion joints.
• Position the thin mat so that it is at least
half the C-C distance from obstacles.
• Thin mats must always be in good contact
with the heat distributor (e.g. concrete).
• Always roll out thin mats with the heating
cables facing up.
• Ensure not to crease the thin mat.
• If additional securing is required hot melt
glue, double adhesive tape or tile glue
can be used.
• When the thin mat reaches the area
boundary, cut the liner/net and turn the
mat before rolling it back. Do not cut the
heating cable.
• The thin mat and especially the con-
nection must be protected from stress
and strain.
• Free end from cold lead must be pro-
tected by installer to avoid water from
coming in.
4
Application overview
The thin mats listed below all are for floor
heating and comply with the EN/IEC
60335-1 st EN/IEC 60335-2-96.
• DEVIheat™ 100S/150S
• DEVIcomfort™ 100T/ 150T
• DEVImat™ 70T/100T/150T/200T
5
Warranty
A 20 year full service warranty is valid for
DEVI thin mats and cables.
For full warranty text visit
www.devi.com,
devi.danfoss.com/en/warranty/
The DEVIwarranty™ is granted to:
Address
Stamp
Product
Art. No.
Resistance [Ω]
Laying out Date
& Signature
Resistance [Ω]
Insulation [MΩ]
Connection Date
& Signature
Resistance [Ω]
Insulation [MΩ]
DEVI
4
5
DEVI
EN
