RBM PAD INDOO User manual

INSTRUCTION MANUAL
MI_ MORE PAD INDOOR
ELECTRICAL INDOOR
RADIANT HEATING SYSTEM
MORE PAD INDOOR

MORE PAD INDOOR
• Maximum self-adjusted temperature at 30°C.
• Suitable for radiant heating of floors, walls and/or ceilings of rooms, also for discontinuous use.
• Suitable for heating and defrosting mirrors.
• Suitable for radiant heating of wet areas, shower cubicles, caldarium areas with any type of final finish.
• Maintenance-free.
• Self-adjusting system with automatic load modulation when the maximum surface temperature is reached.
WHAT IS MORE PAD INDOOR
ELECTRICAL INDOOR
RADIANT HEATING SYSTEM
It is a radiant heating system based on the use of
a very thin (1.2 mm) mat made with a modulating
and self-adjusting semiconductor technopolymer,
which heats up when electric current passes. The
reaction triggered is
a molecular vibration of the nanoparticles
that generates progressive heating of the
semiconducting polymer.
As the temperature of the mat increases,
the nanoparticles contained in the polymer
compound move away from each other
resulting in a progressive decrease in electrical
continuity; the closer the temperature
approaches the maximum threshold reached by
the polymer, the lower the electrical absorption
through the mat.
This characteristic, called PTC (positive
temperature coefficient), uses the heating of the
material to limit the current flowing through it (and
therefore electrical consumption) as a result of
progressive temperature increase.
Therefore, for the same end effect (temperature
of the heating element), using this semiconductor
technology significantly reduces overall power
consumption compared to a similar heater with
electrical conductors operating with heating
resistors, thanks to the natural, automatic
modulation and self-adjustment of the end
temperature without any thermostatic control and
limiting element.

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• semiconductor technopolymer, modulating and self-
regulating, with heating by the passage of electric current by
molecular vibration
• Can be installed on the floor, wall or ceiling.
• None
• Dry with a floating floor or glued to a desolidarising
sheathing.
• Other finishes on screed or fibre-reinforced levelling
compound
• System with electrical insulation class III SELV;
• Can be installed in the bathroom and shower compartment in
zone 1 as per IEC 64-8;
• The system does not generate electromagnetic phenomena during
operation
• Plastering with water-based cement mortar that can be smoothed over
reinforcement mesh;
• Ceramic wall tiles glued onto levelling compounds;
• Dry application of plasterboard;
• Integration of domestic heating systems;
• Heating of wet rooms (shower rooms, tepidarium, wellness areas,
etc.);
• Heating of rooms not served by air conditioning;
• Heating of rooms in discontinuous use with danger of frost;
• Heating of motor homes, caravans and boats;
• Heating of surfaces subject to fogging (mirrors in bathrooms,
wellness areas, etc.);
• Evaporation of water from internal walkways for anti-slip safety;
PAD INDOOR “IN BRIEF”
FUNCTIONL
PRINCIPLE
APPLICATION
INSTALLATION
ROUTINE
MAINTENANCE
FLOOR
FINISH
SAFETY
ELECTROMAGNETIC
COMPATIBILITY
WALL/CEILING
FINISH

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The symbols below, together with their associated wording, indicate the potential risk arising from failure to comply
with the prescription to which they have been combined.
Warns that failure to comply with the requirement entails a risk of damage to
the equipment constituting the mixing unit.
Warns that there is a risk of electric shock if not observed.
Warns that failure to comply with the requirement entails a risk of harm to
persons, animals and/or property.
. WARNINGS BEFORE INSTALLATION
PAD INDOOR is powered by the building’s electrical system.
• Check that the operating conditions of your system (voltage and power) are within
the functional limits of the air conditioning system.
• Check that the power supply is adequately protected as described in the following
Chapter 9 PAD INDOOR system installation;
Before installation, make sure that the electrical system, if any, has been carried out in
a workmanlike manner by requesting the “Declaration of Conformity” and the relevant
mandatory attachments.
Danger
Risk of electric
shock
Warning
Danger
.INFORMATION AND WARNINGS
. IDENTIFICATION OF PICTOGRAMS
PAD INDOOR is a radiant climate control system with electrically powered heating
elements embedded in the building envelope.
Before using the system, read the warnings in this manual carefully, as they provide
important information on safe installation, operation and maintenance.
Use of the system for purposes other than
those specified is not allowed.
Keep this manual in a safe place for further reference, especially when ordering spare
parts.
Danger
Warning
Warning

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. GENERAL WARNINGS FOR SAFE USE
Improper installation can cause damage to people, animals or property.
The manufacturer is not liable for damage caused by installation errors, non-compliance
with these instructions and improper use of the system and individual devices.
Also note the following:
• If the degree of protection does not allow it, do not get the equipment wet and do
not install it unprotected, in humid environments or near jets or splashes of water or
other liquids.
• Due to the presence of very hot parts (power drivers), do not place paper and/or
plastic objects on the equipment or in its immediate vicinity;
• Packaging parts (plastic bags, expanded polystyrene, etc.) must not be left within the
reach of children as they are potential sources of danger.
• The operation of the control and monitoring equipment as well as the handling of the
entire appliance must be prevented by children and incapacitated persons;
• Due to the presence of hot parts, contact burns are possible;
• Allow hot equipment (power drivers) to cool down adequately before any
maintenance work;
• However, use all protective measures necessary to reduce the possibility of injury
Any work on the electrical circuit, regarding ordinary or extraordinary maintenance
operations, must be carried out by professionally specialised personnel authorised
according to Italian Ministerial Decree 37/2008;
Refrain from conducting work yourself;
It is strongly recommended to follow the maintenance instructions for the best operation
of the system and, if parts of the system have to be replaced, to use the original spare
parts supplied by the manufacturer
Before carrying out any cleaning and maintenance work, make sure that:
• The power supply is switched off by means of the thermomagnetic circuit breaker
located on the power supply line of the air conditioning system.
• It is very dangerous to operate the system without any component, especially if this
is a safety guard or mechanical and/or electrical safety device;
• Under no circumstances should the air-conditioning system be started up by
unqualified personnel during maintenance operations;
In the event of a fault or malfunction of the equipment, switch off the power supply by
means of the line protection circuit breaker;
Do not tamper with the system’s equipment.
For reactivation and/or repair, contact the company that issued the declaration of
conformity, or alternatively contact your local electrical installer if there are no warranty
claims.
Danger
Danger
Danger
Risk of electric
shock
Danger
Risk of electric
shock
Danger
Pericolo
Warning

MORE PAD INDOOR
AD INDOOR is a mat that self-modulates electrical consumption and self-adjusts
maximum surface temperature;
Absorption and surface temperature depend on the ability of the environment to absorb
the energy released by the mat.
The lower the starting temperature, the higher the initial absorption (see chapter 7) and
the lower the surface temperature reached. During room temperature optimisation, the
absorption will decrease and the surface temperature will rise to about 30°C, with the
room temperature at about 20°C. If the room temperature tends to rise, the mat’s self-
modulating capacity will further reduce consumption as it has reached its natural self-
regulating limit of approximately 30°C.
Self-modulation depends on the semiconductor material and is limited to maximum
50% of initial consumption; therefore, if the area of action of the mat is covered with an
obstruction that almost completely prevents heat exchange, the surface temperature
may reach 54°C.
An obstruction that could prevent the almost complete heat exchange of the PAD
INDOOR mat is a condition that is difficult to recreate in reality. The building structures on
which the mat is placed always allow for the dispersion of the energy not released to the
environment. In any case, it is advisable, when laying on the floor, that the flat parts of the
furniture are always fitted with feet to facilitate heat transfer to the room.
Danger
Warning
Danger
Warning

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. GENERAL INFORMATION
. GENERAL INFORMATION ON LOGISTICS
• PAD INDOOR is an electric radiant heating
system;
• PAD INDOOR consists of a thin mat,
electrically powered at very low voltage,
that self- modulates electrical consumption
and self- adjusts maximum surface
temperature;
• PAD INDOOR is not an amorphous thin film
extruded resistor in cable, traditional or
carbon conductor;
• The heating of the mat takes place
thanks to the molecular vibration of
the technopolymer making up the
semiconductor mat;
• Thermal expansion of the nanoparticles
gradually reduces electrical absorption,
thereby self-limiting the surface
temperature;
• Heated surfaces do not run the risk of
overheating when covered;
• The maximum surface temperature is
compatible with the surface temperature
limits of the flooring currently in force (UNI
EN 1264);
• PAD INDOOR is a radiant system that can
be combined with very low inertia finishes,
with final thicknesses limited to just 15 mm
(dry finish with plasterboard wall panel,
or application of ceramic coating with
bonding);
• The response times of the PAD INDOOR
system are the same as those of a similar
hydronic radiant system, and depend on
the mass to be energised and the average
starting radiant temperature. Normally, in
a residential environment, the wait for the
design surface temperature to be reached
is about 15...20 minutes for a very low inertia
finish;
• The PAD INDOOR system, like any radiant
system, must provide for the interruption of
heat conduction in the direction opposite
to the radiant transfer into the room. For
this reason, it is essential that the surface
on which the system will be installed is
adequately insulated. If there are no specific
requirements, provide an insulating layer
of at least 20 mm EPS from the rest of the
building envelope;
• The mat is produced in 30-metre rolls, each
of which is tested to verify the nameplate
power consumption;
• Check that the boxes have not been
damaged, are not wet or damp and above
all that they do not have a manufacturing
date prior to 5 years from the year of
installation;
• hen opening the package, avoid using
blades or cutters to avoid unintentionally
cutting into the product contents;
• Protect against UV radiation (like all
polymers it is photosensitive);

MORE PAD INDOOR
• Read the labels on the packaging to
check that the product is correct for the
installation being carried out;
• Installation must be carried out by qualified
personnel who have been trained in
advance, including with the aid of this
manual;
• Avoid direct contact of the technopolymer
with aluminium and/or aluminium alloy
components to prevent possible interaction
with the molecular vibration of the
technopolymer;
• The PAD INDOOR can be cut to size as
there is no minimum length required;
• Any scraps can be reused by electrically
wiring them together to give electrical
continuity between the mat portions;
• It can be cut or drilled, in case of
interference with obstacles (e.g. electrical
boxes), as long as the lateral electrical
conductors are not interrupted;
• It can be nailed and/or stapled for fixing
to the substrate at any point, taking care
to avoid affecting the lateral electrical
conductors;
. GENERAL INFORMATION FOR INSTALLATION
• It can also be curved and bent at right
angles (between slats) to fit the profile to be
heated;
• Do not allow metal parts that pass through
or touch the mat (e.g. paper clips, drywall
screws, etc.) to come into contact with
metal masses. If this were to happen, the
area in which contact takes place could be
subject to a significant reduction in surface
temperature due to the alteration of the
transit of electrical energy;
• Avoid contact with solvents as well as with
glues and two-component mortars that
could compromise the long-term stability of
the technopolymer;
• The surface of the mat can be covered
with any type of building finish (including
tiles, natural stone, parquet, cement mortar
plaster, laminate and carpet); the transfer
of thermal energy must take place by
contact between the layers that interpose
themselves with the environment to be
heated;
. GENERAL INFORMATION ON ELECTRICAL INSTALLATION
• The electrical wiring must be sized and
executed in accordance with Italian
Presidential Decree 37/08 and subsequent
amendments and integrations;
• The installation must be carried out by a
qualified installer, following the rules of art
set out in the current technical regulations
for the installation of electrical systems as
well as in this installation manual, using
certified products that allow the declaration
of conformity to be issued;
• If the rooms served by a single electric
meter exceed the size or installed power
limits laid down in Italian Ministerial Decree
37/08, the electrical dimensioning of
the system and the related project must
be drawn up and signed by a qualified
professional registered with a professional
association;
• The PAD INDOOR heating system,
consisting of the radiant mat and its
accessories, such as self-amalgamating
tape, crocodile crimp terminals and power
supply drivers 320 and 600, enables the
creation of an electrical system in insulation
class III SELV to allow installation in special
environments such as wet rooms and
shower compartments

MORE PAD INDOOR
• The PAD INDOOR system complies with the requirements imposed by European Regulation
1188/2015 Annex II Table II on the energy efficiency of electric heating systems incorporated in
the interior finish of the building envelope;
• In order to comply with the ErP Directive 2009/125/EC, as well as with current legislation
on energy containment in buildings, the mat must be associated with an electronic room
temperature control, with at least daily division into several time bands for controlling at least
two levels of room temperature (chronothermostat);
• In combination with the RBM MORE advanced thermoregulation system, associate the PAD
INDOOR system with the control of window opening as well as the remote function control APP;
• The control drivers included in the PAD system accessories are optimised for the correct
operation of the mat, with the inclusion of a soft start curve that attenuates the absorption peak
at switch-on;
. GENERAL INFORMATION ON ENERGY EFFICIENCY
.  IDENTIFICATION OF THE MANUFACTURERDISTRIBUTOR
This manual provides the technical information necessary for the installation, use and
maintenance of the air-conditioning system PAD INDOOR.
For any further clarification, the customer can contact the manufacturer’s Technical
Sales Support:
RBM S.p.A. - Via S.Giuseppe, 1 - 25075 NAVE ( BRESCIA ) - ITALY
Tel ++39 030 2537211 - Fax ++39 030 2531799
[email protected]

MORE PAD INDOOR
. SYSTEM COMPONENTS
The components of the PAD INDOOR system are listed below in this manual.
For further accessories that are not strictly related to the PAD INDOOR system, which may be necessary for the
installation of underfloor heating systems, refer to the general RBM MORE catalogue.
PRODUCT TABLE
Series Description
3857
Electric heating mat with very low voltage 36 VDC and low
consumption, made of self-modulating semi-conducting
technopolymer for radiant heating on floors, walls and
ceilings, with double copper conductor cord embedded in
the technopolymer Width 310 mm - Supplied in rolls, length
10 or 30 m
3970
Feeder to control very low voltage current modulating
utilities with constant output voltage
230VAC/36VDC - Power output 320 W - watertight IP65
SELV
3858.A
Feeder to control very low voltage current modulating
utilities with constant output voltage
230VAC/36VDC - Power output 600 W – watertight IP65
SELV
3858.B
Feeder to control very low voltage current modulating utili-
ties with constant output voltage
230VAC/36VDC - Power output 1000W
3859
Protective, thermally conductive sheet, to be laid over
the Pad Indoor mat, when the floor installation involves
aggressive cements and adhesives and/or when the laying
distance exceeds 150 mm in order to favour the uniformity of
the surface temperature.
Width 700 mm - Supplied in rolls, length 20 m
3860
Crimp terminal to connect the part of the mat to the
electrical distribution cables.
Supplied in packs of 20 or 200 pcs.
3862 Crimping clamp with flat jaws.
3861
Double-sided, self-amalgamating bituminous tape for
dielectric sealing of the areas affected by the crimping
between terminal, electrical cable and technopolymer. Width
30 mm - Supplied in rolls, length 20 m

MORE PAD INDOOR
. TECHNICAL FEATURES
DRIVER
of power supply
320W
Electrical power supply 90...305 VAC
Controllable rated power 320 W
Absorption 8.9 A
Feeder driver consumption in stand-by 0.5 W
Full load efficiency 94.6 %
Adjustable output voltage 36 VDC
Feeder electrical protection IP 65
Type of protection SELV
Short-circuit protection YES
Overload protection YES
Overvoltage protection YES
Overtemperature protection YES
Soft-start curve for starting load limitation YES
Remote on-off consent YES
Working environment temperature -40..+70 °C
Max. ambient working temperature (peaks) 90 °C
Dimensions (LxDxH) 252x90x43.8 mm
Feeder weight 1.9 kg
Mat
PAD INDOOR
Semiconductor material PE
Conductor material Copper braid
Braid equivalent section 5 mm2
Mat specific weight 1,15 Kg/m2
Width 310 mm
Thickness 1,2 mm
Roll Lenght 10/30 m
Nominal temperature (at 20°C) 29,8 °C
Max temperature (with limited heat exchange with the environment) 54 °C
Electrical power supply 36 V DC
Rated input power (at 10°C) 28,8 W
Absorption reduction (when reaching final temp) -50 %
Length max. single branch power supply 7 m

MORE PAD INDOOR
DRIVER
of power supply
600W
Electrical power supply 90 ÷ 305 VAC
Controllable rated power 601,2 W
Absorption 16,7 A
Feeder driver consumption in stand-by 0,5 W
Full load efficiency 96 %
Adjustable output voltage 30,6 ÷ 37,8 VDC
Feeder electrical protection IP 65
Type of protection SELV
Short-circuit protection YES
Overload protection YES
Overvoltage protection YES
Over-temperature protection YES
Soft-start curve for starting load limitation YES
Remote on-off consent YES
Working environment temperature -40 ÷ +55 °C
Max. ambient working temperature (peaks) 90 °C
Dimensions (LxDxH) 280x144x48,5 mm
Feeder weight 3,9 kg
DRIVER
of power supply
1000W
Electrical power supply 90 ÷ 264 VAC
Controllable rated power 1.008 W
Absorption 28 A
Feeder driver consumption in stand-by 0,2 W
Full load efficiency 95,5 %
Adjustable output voltage 36 ÷ 43,2 VDC
Short-circuit protection YES
Overload protection YES
Overvoltage protection YES
Over-temperature protection YES
Soft-start curve for starting load limitation YES
Remote on-off consent YES
Working environment temperature -30 ÷ +50 °C
Max. ambient working temperature (peaks) 50 °C
Dimensions (LxDxH) 240x111,4x41 mm
Feeder weight 1,74 kg

MORE PAD INDOOR
ErP Directive - Regulation EU/1188/2015
System information for electrically powered domestic room heaters built into the building envelope
Model identier: PAD INDOOR
Data Symbol Value Unit Data Unit
Thermal power Type of heat output, only for electric storage space
heating appliances (indicate only one option)
Nominal heat
output
Pnom 0,03 kW manual thermal load control, with integrated
thermostat
NO
Minimum heat
output (indicative)
Pnom 0,012 kW manual control of the heat load with feedback of
the ambient and/or external temperature
NO
Maximum conti-
nuous heat output
Pnom 0,03 kW electronic heat load control with room and/or
outside temperature feedback
NO
Auxiliary power
consumption
fan-assisted heat output NO
At nominal heat
output
elmax 0,035 kW Type of heat output/room temperature control (indi-
cate only one option)
At minimum heat
output
elmax 0,035 kW single-stage heat output without room tempera-
ture control
NO
In stand-by mode 0,035 kW two or more manual steps without room tempera-
ture control
NO
ηs = 38,9% > 38% with room temperature control via mechanical
thermostat
NO
with electronic room temperature control NO
with electronic room temperature control and
daily timer
NO
with electronic room temperature control and
weekly timer
YES
Other control options (multiple options can be se-
lected)
room temperature control with presence de-
tection
NO
room temperature control with detection of open
windows
YES
with remote control option YES
with adaptive start-up control YES
with operating time limitation NO
with black globe thermometer NO
Contacts RBM SpA - via S.Giuseppe 1 - NAVE (BS) - ITALIA

MORE PAD INDOOR
. POSSIBLE APPLICATIONS
The main information concerning the possible applications of the PAD INDOOR system in the rooms to be heated is
given below:
The very low thermal inertia of the radiant element, in the case
of dry installation, allows for quick adjustment of the system.
Excellent in cases of intermittent or discontinuous management.
Direct bonding of the flooring is possible after applying a layer of
adhesive with or without a self-levelling cement additive to even
out the laying surface.
The very low thermal inertia of the radiant element allows for fast
system adjustments. It is possible to apply the heating element
and sandwich it dry with a plasterboard finishing panel. Excellent
in cases of intermittent or discontinuous management.
Excellent in the case of renovations and additions to rooms
without a heating system, as a result of the non-invasive work
required.
The very low thermal inertia of the radiant element allows for fast
system adjustments. The heating element can be applied with a
plastered, tiled or drywall finish.
Excellent in cases of intermittent or discontinuous management.
Excellent for heating shower cubicles, integrating bathrooms and
anti-fogging heating of mirrors.
advantages and limitationsapplication
. CERTIFICATIONS
EC declaration of conformity with directives:
• EU Regulation 1188/2015 implementing Directive 2009/125/EC (ErP) with regard to ecodesign requirements for
space heating appliances.
• Restriction of Hazardous Substances (RoHS) Directive 2011/65/EU.
• Directive on waste electrical and electronic equipment (WEEE) 2012/19/EU.
• Electromagnetic Compatibility (EMC) Directive 2014/30/EU.
• EU Regulation 305/2011 on construction products, reaction to fire of the heating element according to EN 13505-
1:2019 (Fire classification of construction products and building elements - Part 1), Classification E, Efl.

MORE PAD INDOOR
. APPLICATION DETAILS
INTERFERENCE MANAGEMENT
he PAD INDOOR is a semiconductor. As the
power conducting element is missing, it can be
interrupted at will in the event of interference
with fixed elements such as light centres, socket
boxes, etc.
Only preserve the integrity of the lateral electrical
conductors embedded in the technopolymer.
. LEGISLATIVE INFORMATION
In the case of renovation or energy refurbishment, it is possible to derogate from the minimum internal living space
height of 10 cm.
This possibility is of fundamental importance when it is necessary to insert a radiant floor or ceiling
system inside an existing building.
Italian Ministerial Decree 26.06.2015 - Annex 1, art. 2.3.4
In existing buildings that have undergone major renovations or energy redevelopment as defined in Article 2,
paragraph 1, letters l-vicies ter) and l-vicies quater) of the Italian legislative decree, with the specifications set out in
paragraphs 1.3 and 1.4 of this Annex, in the case of the installation of heating systems equipped with radiant floor or
ceiling panels and in the case of insulation from the inside, the minimum heights of the living quarters provided for in
the first and second paragraphs of Italian Ministerial Decree of 5 July 1975 may be derogated from, up to a maximum
of 10 centimetres.
However, in mountain municipalities above 1,000 metres above sea level, the minimum height of habitable rooms
may be reduced to 2.55 metres, taking into account local climatic conditions and the local building type
Specifically, the energy requalification activities of a building fall within the normal activities of routine or extraordinary
maintenance as stated in
Italian Legislative Decree 192.2005 - art. 2 definitions
l-vicies ter) “energy requalification of a building” an existing building undergoes energy requalification when the work,
however named, including but not limited to: routine maintenance, renovation and conservative restoration, falls into
types other than those indicated in letter l-vicies quater); ( * )
(*) the different types concern so-called “major renovation” with work being performed on a surface area 25% larger
than the building envelope

MORE PAD INDOOR
INTEGRATION AND
ELIMINATION OF FOGGING
Exampe of wa heating with
bonded mirror fixed with
siicone.
CALDARIUM AND SHOWER AREAS
The PAD INDOOR has a compete abiity to
adhere to the shapes of seats and fase ceiings
with the possibiity of covering them with any type
of finish.
This makes it possibe to safey create weness
zones, even in norma shower cubices.
. REGULATORY INFORMATION
Specia environments and appications IEC
standard 64-8 part 7
Bathrooms have specia environmenta
conditions that ead to greater risks, especiay
reated to the possibiity of eectrocution through
direct and indirect contact by the user.
The rues for instaation in these rooms depend
on the identification of danger zones defined by
the position of the bath and/or shower within the
room in question.
This determines the voumes, caed “zones”,
within which the eectrica instaation and
components must meet certain minimum
characteristics.

MORE PAD INDOOR
Cass III with SELV protection is soey achieved by couping the Indoor PAD with the 320 or 600 DRIVER.
The instaation of the PAD INDOOR system must therefore be excuded (see orange area):
• within the voume of the tank;
• within the voume of the shower tray;
If there is no shower tray, the area to be excuded is the area
within a radius of 1.2 m from the shower head and a height of 10 cm.
Outside these voumes, it is possibe to insta the PAD INDOOR and the corresponding power ines.
Regardess of the intended instaation, whether foor, wa or
ceiing, the PAD system must be separated from the buiding
enveope in the same way as any radiant air conditioning system.
This requirement is suppementary to any thermo-technica
dimensioning reated to the energy efficiency of the buiding-
instaation system.
To enabe the radiant system to be thermay decouped from the
buiding enveope, it may be sufficient, for exampe for the wa or
ceiing, to insta a sheet of pasterboard pre-couped with an EPS
insuation pane, with a minimum thickness of 20 mm.
Warning
surface on which
the PAD INDOOR
is to be fixed
Eectrica characteristics of the PAD INDOOR
system
Suppy votage 36 VDC
Insuation cass cass III SELV
Protection cass IPX7
Area where
installation is not
possible
Free zone
installation
Installation Area
with Driver 320 or
600
INDOOR PAD INSTALLATION ( refer to IEC 64-8 PART 7 )

MORE PAD INDOOR
. DIMENSIONING
Power output of the PAD INDOOR mat
The nomina namepate power, corresponding to the power consumption vaue at 36VDC, is deivered at a temperature
between 5 and 10 C, the vaue at which the buiding enveope is normay paced in non-heated or frost- free conditions.
The chart beow shows the sef-adjusting capacity of the technopoymer as the contact temperature of the mat
changes.
PAD INDOOR TEMPERATURE °C
OUTPUT VALUES
PoWER W/m
0 5 10 15 20 25 30 35 40
37
32
27
22
17
12
7
Model
Linear
Power
W/m
Active area
m2/m
Maximun yield
W/m2
yield W/m2as a function
of the distance in mm between mats
PAD INDOOR 25 0.31 80 mm 25 50 100 150 200 250
W/m275 75 60 55 50 40

MORE PAD INDOOR
• Determine the peak demand, in W, of the room to be heated;
• Cacuate the deveopment in metres of PAD INDOOR as a function of the W/m yied; increase the deveopment by
at east 30% to take into account the share of energy dispersed towards the separation insuation with the buiding
enveope.
• Choose the type of instaation (foor, wa, ceiing) and, depending on the surface avaiabe, determine the number
of strips of PAD OUTDOOR to be aid; it is advisabe to keep the distance between one mat and the next between
25 and 250 mm; if the surface finish is to be fixed mechanicay (e.g. pasterboard or parquet strips), preferaby ay
the mat at right anges to the direction of fixing of the finish itsef.
• Determine the peak eectrica power by mutipying the tota deveopment in metres of PAD OUTDOOR by the
nomina eectrica power absorbed at 10°C;
• To determine the number of power suppies required to drive the system, divide the tota eectrica power
determined in point 4) by the eectrica power that can be deivered by the drivers avaiabe from the system
accessories.
• For the correct choice of power suppy driver, it is advisabe that the eectrica power that can be suppied is at
east 90% of the maximum eectrica power that can be suppied by the driver. For exampe, the 1000 W driver can
suppy 900 W of PAD INDOOR;
• If the PAD is to suppy power to wet areas that can be cassified as specia environments, it is necessary to use ony
power suppy drivers capabe of raising the protection of the eectrica system to SELV (Safety Extra Low Votage);
• Determine the instaation position of the driver in order to proceed with the dimensioning of the extra-ow votage
power ines; the cabe route must be as short as possibe in order to imit votage drop as much as possibe.
• For the DC extra-ow votage ine, provide one or more distribution backbones for connecting, in parae, the
36VDC output of the power suppy driver to the junction boxes to be ocated near the PAD INDOOR mats to be
powered;
• Each junction box must contain a distribution manifod from which the power cord of each mat is derived. Each
cord sha feed a ength of PAD INDOOR not exceeding 7 metres.
• The maximum votage drop recommended by IEC 64/8 is 4 % from the point of deivery to the ast consumer,
normay divided into 1.5 % for the ine from the measuring instrument (meter) and 2.5 % for the interna eectrica
distribution;
• For the 36VDC extra-low voltage line downstream of the distribution drivers, it is preferable to dimension the line so
that the total voltage drop of the line does not exceed 0.5 VDC. However, it is possible to correct the output voltage
of the driver within the range given in the technical characteristics section.
• The following tables can be used for an initial awareness of power line dimensioning:
Information for eectrica dimensioning:
For dimensioning, proceed in the foowing ogica sequence:
Warning
This sizing method is intended to provide rapid sensitivity on the necessary heating amount
to meet the peak therma requirements of the environment. This method does not repace
the thermo-technica cacuation, which must consider the emission vaue towards the
environment as we as the imitation constituted by the therma resistance of the finishing
eement.
power W
power matching the size of the
driver
cable length
m
cable cross section mm2
unipolar type
H07V-K or FS17 450/750V
600 5 6
600 10 10
600 15 16
600 20 16
1000 5 10
1000 10 16
1000 15 25

MORE PAD INDOOR
Example: If we were to imagine a wall heating system consisting of 9 strips of PAD
INDOOR, each 2 metres long (60 W) and connected to a 600W power supply driver,
we could assume the following line combinations:
Regardless of the size of the rooms and the electrical power installed, the electrical
system to be built must always be preceded by the project drawn up as provided for
by Italian Ministerial Decree 37/2008 art. 5 comma 1;
PAD INDOOR power cord
length
m
length of DRIVER
connection backbone
m
cord section mm2
unipolar type
H07V-K or FS17 450/750V
backbone section mm2
unipolar type
H07V-K or FS17 450/750V
20 - 2,5 -
10 5 2,5 10
5 10 2,5 16