Lorenzoni Lor Foil Kit 0.3 User manual

!
1!
LOR FOIL KIT 0.3
Riscaldamento elettrico
per pavimenti in legno e laminati
Electrical heating
for wooden and laminate floors
DESCRIZIONE
DESCRIPTION
LOR FOIL KIT 0.3 è un KIT completo per
il riscaldamento elettrico a pavimento
per interni, installabile sotto
pavimenti in legno e laminato.
Il kit è composto da una pellicola
isolante di 0,3 mm estremamente
robusta su cui è inserita la lamina V.
230, un cronotermostato digitale
(modello LOR-THERM 355), cavi di
alimentazione, connessione e
terminazione.
La posa risulta pratica e veloce
perché la pellicola si srotola come un
tappeto e può essere tagliata in base
alla superficie da coprire.
Non contiene alogeni o PVC.
LOR FOIL KIT 0.3 is a complete kit for
electric underfloor heating for
indoor, installed under wood flooring
and laminate.
The kit is composed of an insulating
film of 0.3 mm extremely robust (on
which is inserted the foil V. 230), a
digital timer (model LOR-THERM 355),
power cables, connection and
termination.
The installation is quick and easy
because the film is unrolled like a
carpet and can be trimmed according to
the surface to be covered.
It does not contain halogens or PVC.

General instructions
• Check that the foil is labelled for 230V and 100 W/m2.
• Lor Foil Kit 0.3 must only be installed in dry areas.
• The installation must be connected via a 30mA earth fault relay.
• The foil must be laid with the copper strips facing down.
• Do not install when the temperature is below +10oC.
• The thermal conductivity of the ooring material must be more than 0.16 m2K/W.
• The foil must be protected from damage. The oorcovering must be laid immediately after the foil has
been laid.
• The foils must be covered with non-ageing plastic lm, at least 0.2mm, before the oor is laid.
• Crimping tool must be used, otherwise the guarantee will be invalid.
• The foil must not be laid under xed ttings such as kitchen units, wardrobes, internal walls, etc., since
this leads to overheating, and not close to stoves or other heat sources.
• Insulating interior furnishings such as thick carpets or oor cushions must not be used.
• The maximum load per foil is 10 A. Above 10 A load, the foils must be divided up and connected via
a contactor.
• The foils must be controlled by a Lor-Therm 355 thermostat.
• Lorenzoni srl´s single core double insulated cable (RTK) supplied must be used.
Installation instructions Lor Foil Kit 0.3 100 W
Installation instructions Lor Foil Kit 0.3 100W
Read carefully through all the installation instructions before starting the installation
Before you start, compare the material in your Lor Foil Kit 0.3 with the table below.
Contents Lor Foil Kit
ARTICLE UNIT
Foil (m) 13,5 18 22,5 27 31,5 22,5
Thermostat (pcs) 1 1 1 1 1 0
Flexible conduit (pcs) 1 1 1 1 1 0
Terminals (pcs) 20 20 20 24 24 20
RTK cable black (m) 6,25 6,25 8 8 8 6,25
RTK cable blue (m) 6,25 6,25 8 8 8 6,25
Fixing tape (pcs) 1 1 1 2 2 1
Sealing tape green (pcs) 20 20 20 24 24 20
Insulating tape black (m) 0,54 0,54 0,54 0,65 0,65 0,54
Installation instruction (pcs) 1 1 1 1 1 0
The underoor heating system is a main voltage installation and must therefore be installed
and connected in accordance with the current national regulations.
Conguration 1 is used where the oorcovering
is wood/laminate
Conguration 2 is used where the oorcovering
is plastic matting
1

Installation instructions Lor Foil Kit 0.3 100 W
If there are obstacles:
If there is an obstacle in the way, cut the foil square
and t jumper wires around the obstacle, as shown
in gure 4.
Preparing to lay the foil
In addition to the Lor Foil Kit 0.3 you will need:
• Non-ageing plastic lm
• Insulation 6 mm
• Crimping tool
• Earth fault relay – if not already installed in the building
Remove any existing plastic matting.
Existing plastic matting must be removed, since the plasticiser in the matting may eventually
damage the insulation sheets.
g. 4
g. 2
g. 1 g. 3
Planning how to lay the foil
Make an accurate sketch of the oor and draw in the positions of the lengths of foil. Points to think
of when drawing the sketch:
• The position of the thermostat should take account of the power supply. Do not position the
thermostat where it will be in direct sunlight at any time.
• The lengths of foil must be butted edge-to-edge. The foils must cover as large an area as possible, but
the lengths of foil must not be pulled apart, since the differences in temperature will be noticeable.
• The total width of the foil is 43cm. The foils may be laid slightly overlapping, but the distance
between the copper strips must never be less than 5 mm.
• It´s important to ensure optimum cover where you will often stand, for example in front of the
kitchen units.
• To avoid draughts, plan for the foils to be laid right up to outside walls.
Figures 1 to 3 below show various possible ways of laying and connecting the foils.
2

Installation instructions Lor Foil Kit 0.3 100 W
Lay the insulation
Lay the insulation sheets butted edge-to-edge.
Leave a gap of about 1 cm at the wall on the con-
nection side, as shown in gure 6. In this area the
single-core connection cable will be placed.
To get a level surface, lay insulation over the entire
oor, even where no foil will be laid.
Fix the insulation sheets with tape, as shown in
gure 6, to stop them moving around while you
are working. Cut away the insulation above the
exible conduit.
Measure up the foil and cut it
Roll out the foil to the correct length. On the connection side, end the foil about 4-5 cm from the wall.
Using scissors, cut the foil square along the broken lines, as shown in gure 7. DO NOT cut into the black
areas. The distance from the cut edge to the black area must never be less than 3 mm. Use the xing tape
supplied to tape the long sides of the foil together. Fully tape the long sides.
Getting started
Make space for the flexible conduit
Cut or chase a channel for the exible conduit, as shown
in gure 5. The end of the exible conduit must be po-
sitioned centrally under a foil. The bend in the exible
conduit must not be too sharp or it will be difcult to
insert the oor sensor. Feed the sensor into the exible
conduit and tape off the end.
Vacuum-clean the area thoroughly.
g. 6
g. 7
g. 5
Thermostat
Flexible
conduit
Tape off the end
of the exible
conduit.
g. 8
3

Installation instructions Lor Foil Kit 0.3 100 W
Cut out for the terminals and make space for the connection cable
Mark the insulation where the terminals will go, as shown in gure 10. Make a cutout of about 3 x 6 cm
in the insulation. The terminals and the cables must not be protude of the upper surface of the insulation.
Important!
Never apply mechanical load to the cables.
Seal off the copper strip
Seal off the copper strip with the round green pieces
of tape, as shown in gure 9. Seal only the short side
that will not be connected with cable.
g. 9
g. 10
chisel
g. 11
g. 12
Adjust the crimping tool
For the terminals to be properly crimped, the pliers
must be correctly adjusted. When the crimping tool
is closed, the opening must not be larger than 1.3
mm. To adjust the crimping tool, unfasten the screw
and turn the toothed disc on the side of the crimping
tool; see gure 12.
4

Installation instructions Lor Foil Kit 0.3 100 W
Run the cable
Fix the connection cables with tape etc in the cavity shown
in gure 6. Cables can cross over in this cavity.
Important! Never apply mechanical load to the cables.
Connect the foils together
Connect the foils together as shown in gure 15. In an L-shaped room, the foils can be connected as
shown in gure 16.
Fit the terminals
Slip the terminal on to the foil and centre it on the copper strip. Squeeze the terminal rmly with your
ngers as shown in gure 13.
Crimp the terminal from both sides at an angle of 45º
across the perforated part, as shown in gure 14.
g. 13
g. 16
g. 15
Min. 5 mm between the copper strips
g. 14
Warning! Don´t
press here!
Press with
the tool here!
Press with
the tool
here!
5

Installation instructions Lor Foil Kit 0.3 100 W
Test the foils
Measure the total length of the foils. Work out the theoretical resistance by inserting the total length into
the formula in the test report. Enter the value in the report. Measure the resistance of the foils and enter
the value in the report. Compare the theoretical value with the measured value.
The tolerance on the resistance values is -5% to +10%. Measure the insulation resistance of the foils and
enter the value in the report. Make a record of the installation in the form of a photograph or a sketch, in
accordance with the instructions on the guarantee certicate, please see page 7.
Insulate the terminals
Cut 50x25 mm pieces of the black insulating tape. Pull off the
backing paper. Centre one piece of tape under the terminal
and one over the terminal, as shown in gure 19. The tape
must extend at least 5 mm beyond the end of the terminal.
Press the insulating tape rmly together with your ngers.
Do not apply mechanical strain or load to the terminals.
Connect the cables
Connect the lengths of foil together with
the single-core double-insulated RTK cables
supplied. Strip off about 6 mm of insulation
and insert the wire into the terminal. If there
is only one cable, bend the stripped wire
double, as shown in gure 17. NOTE that
the cables are double-insulated and that both
insulation layers has to be removed.
Crimp the terminal to the cable with the
crimping tool as shown in gure 18.
g. 17 g. 18
g. 19
Cover with non-ageing plastic film and lay the floorcovering
Cover the foils with non-ageing plastic lm, at least 0,2mm. When adding the next piece of plastic lm
overlap at least 200mm. Then lay the oorcovering immediately, in accordance with the arrangements
illustrated on page 1. Some kinds of wood, especially beech and Canadian maple, exhibit more natural
movement and are therefore not so suitable for underoor heating. The oorcovering should be chosen
with the guidance of the ooring supplier.
Test and connect the installation
After laying the oorcovering, test the foils. Enter the values in the test report. Keep a copy of the test
report near the electricity distribution board. Connect the thermostat.
6

Lorenzoni srl provides a 10 year guarantee for defective materials
in Lor Foil Kit 0.3 and Lor-Therm thermostats, henceforth called
”the Products”.
The guarantee only becomes valid under condition that the Products
are installed by a qualied electrician according to the applicable
regulations and in accordance with installation instructions
This guarantee certicate, including test record below, must
be completed in its entirety and, along with the materials specica-
tion or invoice, must be signed by the electrician who carried out the
installation. Furthermore, there must be photographs/sketches that
show the Products in their entirety after laying but before covering.
If defects to materials should arise in the Products during the gua-
rantee period, Lorenzoni srl undertakes to repair or alternatively
replace the Products at no cost to the purchaser.
Lorenzoni srl also undertakes to restore the oor to its original condi-
tion after the repair or replacement has been completed. In order to be
able to remedy the fault the purchaser must have saved or have access
to 1 m² of the existing oor material. For thermostats, with defects
that occur after 3 years Lorenzoni srl supplies a new thermostat.
*Applies only under condition that the product is installed
indoors, together with Lorenzoni srl’s control system.
The guarantee does not apply to installations that have been carried
out by an unqualied electrician or alternatively if an unqualied
electrician has carried out modications or repairs. Nor does the
guarantee apply if the defect has arisen as a result of using incorrect
materials and oor construction or as a result of incorrect installation.
Nor is damage covered that is a result of vandalism, re, lightning,
water damage or damage caused by negligence, abnormal usage or as
a result of an accident.
In the event of a material defect arising that is covered by the guarantee
Lorenzoni srl must be notied.
In the event of the guarantee being invoked, this guarantee certicate
with accompanying invoice of installation, material specication plus
completed and signed test record must be presented.
LORENZONI SRL
MICHELE LORENZONI
Electrical installation carried out by:
-------------------------------------------------------------
according to enclosed materials specication.
Date: --------------------------------------------------
Signature: -----------------------------------------------------
Guarantee Certicate
Lor Foil Kit 0.3
Installation instructions Lor Foil Kit 0.3 100 W
7

Length/Size Power/Voltage
___________ ___________
___________ ___________
___________ ___________
___________ ___________
___________ ___________
If the oor surface is to be replaced, the new material must be suitable for underoor heating. Contact your ooring supplier
for information. Do not position insulating material or oor xtures on surfaces where there is underoor heating. This
reduces heat transfer into the room and produces a higher temperature in the oor.
A detailed sketch of the terminations and splices in the foil, and the exact positioning of any connection boxes must be entered
above. In addition, take a photographic record of the laying process. This sheet or a copy of it should be displayed beside the
fuse panel.
Installation instructions Lor Foil Kit 0.3 100 W
Mark your drawing with the respective number
Test Report Lor Foil Kit 0.3
Tolerance of resistance values: -5 to +10%. Min. Insulation value 10 Mohm.
Installed length (m):
Installed length (m):
Installed length (m):
Before laying
Theoretical
RESISTANCE-
VALUE
Ohm
After xing
RESISTANCE-
VALUE
Ohm
INSULATION-
VALUE
Mohm
After oor covering
RESISTANCE-
VALUE
Ohm
INSULATION-
VALUE
Mohm
230 V, 100W/m², width: 43 cm
1322.5
length (m)=theoretical resistance value
8