I WARM Spooled Kit User manual

INSTALLATION
MANUAL

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Contents
1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Configuration of the System . . . . . . . . . . . . . . . . . . 5
4. Preparation for Installation . . . . . . . . . . . . . . . . . . . 8
5. IWARM Floor Heating System Installation . . . . . . .12
6. Turning the System on and Operation . . . . . . . . . .27
7. Advices and Notes . . . . . . . . . . . . . . . . . . . . . . . . . .27
8. Your Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
9. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
10. Plan of the Premises . . . . . . . . . . . . . . . . . . . . . . . .33
11. Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

1. General
Dear Customer!
You have purchased a IWARM floor heating system.
Thank you for your choice. We are sure that our product
will meet all your expectations and bring warmth and
comfort in your home.
Please read the following advices carefully before
installing the system:
JWe recommend you to buy an IWARM Additional Kit
with a thermostat, temperature gage, protective cor
rugated tube for the temperature gage, and a service
box. This will ensure reliable operation of your IWARM
floor heating system.
Jmake sure that your floor area corresponds to the effi
ciency of the system you bought. Advices on how to
choose your system and recommendation for heating
cable spacing are given in the Appendix to this
instruction. Adhere to the recommended spacing
when weaving the cable. Do not allow it to approach
together closer than 60 mm.
Jbefore installing the system make sure it is suitable for
your floor finishing. IWARM system is intended for
floors with ceramic or stone tiles or into grout.
Jplan the installation of your heating cable so that it will
not be damaged during subsequent works.
Jif you do not want to apply tile immediately after your
heating system has been installed, make sure that
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your heating elements will not be damaged during this
time (e.g. cover the elements with cardboard or ply
wood sheets).
Jwe recommend you to use only grades of mixtures
which allow for floor heating.
Jmake sure the element heats before any tiling works
(according to instructions in paragraph 5, pages
19–20, 25).
Jtake care not to displace or damage the cable when
applying tiles.
Jread carefully the restrictions on heating system
installation and operation given in paragraph 8.
These instructions contain IWARM floor heating sys
tem installation and connection rules. Remember that
proper and long service of your floor heating system is
99 %depend on its proper installation. Follow the
instruction here when installing your floor heating system.
You can install the system on your own, or turn to either a
qualified electrician or our wiremen.
2. Application
IWARM floor heating system is a universal room elec
tric infloor heating system which can be installed under
floors with tile covering (or other decorative flooring) and
into grout. This system can operate as:
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1. Main heating system in detached buildings including
those where there is no any central heating system.
2. Additional (comfort) heating system. Installed
together with other heating devices and is intended to
give additional thermal comfort.
Heating system power choice is based on the follow
ing considerations:
JA heating element nominal power shall be:
— 110–120 W per square meter, min, of free floor
space (IWARM as an additional system).
— 130–150 W per square meter (IWARM as the main
heating system).
JIf IWARM is used as the main heating system, it shall
cover 70 %, min, of total floor space in the room.
Consult your sales manager or service department if
you want to use this heating system in your balconies, win
ter gardens, rooms with many windows, open doorways
and arches, or rooms with more than 4 m high ceilings.
Our qualified staff will help you to choose the right system
which will ensure sufficient heating in you home.
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3. System delivery kit
IWARM floor heating system consists of a reel of
heating cable element and assembly tape. A thermostat
is necessary for the reliable operation of IWARM floor
heating system. We also recommend you to buy an
I-WARM Additional Kit with a thermostat, temperature
probe, protective corrugated tube for the temperature
probe, and a service box.
Heating section (IWARM heating system) as well as a
thermostat and a service box (IWARM Additional Kit)
have certificates with their specifications and warranties.
3.1. Heating section
Heating section is a heating cable of a sertain length
with 3 m long installation cable. Connection of the heat
ing cable and installation cable, as well as terminal seal
ing are made in enclosed splicing and terminal cou
plings. These boxes are highly reliable. They are repeat
edly tested at the factory.
Sections with different nominal power have different
colors and marking to facilitate their distinguishing.
Sections specifications and wiring diagrams are given in
the Appendix to these instructions.
Heating cables of heating sections are made and test
ed according to high reliability technology. Heating sec
tions approved by Russian Compliance Certificates, Fire
Safety Certificates and Hygiene Certificate.
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Cable insulation is made of tough, heatresisting, non
flammable Tefzel fluoropolymer. Cable shield is made of
aluminum foil reinforced with copper line. The shield pro
vides mechanical and electrical protection and increases
heat resistance of the cable. Cable jacket is made of
heatresistant, hard PVC.
Heating cables are made of highquality materials by
leading polymer producers.
Doubleconductor cable makes it possible to feed the
section from one end only. This facilitates section laying
out in the room.
To connect IWARM section properly pay atten
tion to installation wire coloring.
Blue and brown wires go to the heating wires and are
connected to the thermostat.
Plain conductor with twisted copper wires is connect
ed with the protective shield of the cable. This conductor
has to be connected to the building grounding loop (or
neutral conductor).
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Green Box element
thermostat
thermostat
terminal blocks
service box
grounding loop
or neutral conductor
Coupling
muff
Heating core terminals
(blue and brown)
Screen
terminal
Termination
muff
Installation wire
(cold lead) Terminal
connections Power supply
220 VAC
Sensor
of temperature
control
circuit
IWARM section

3.2. Prepunched band installation
Prepunched band installation is used to facilitate
heating sections laying out and fixing to the floor sur
face. Pieces of tape are fixed to the subfloor. The tape
has equally spaced fixing lugs to assure equal element
spacing.
3.3. Thermostats
A thermostat allows for energy saving, turning on only
when the thermal comfort in the room needs to be sus
tained.
With programmable thermostats you can set your own
temperature schedule for a day or a week. We recommend
you to use new IWARM series thermostats.
3.4. Service box
The service box is used to appliance cords when sev
eral heating sections are installed, as well as to facilitate
sensor of temperature replacement in case of its defect.
Connections are made in twopart terminal blocks.
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4. Preparation for Installation
4.1. Floor Preparation
To provide long service life of the floor heating system
and to eliminate possible damages to the heating cable
during installation works you need to do some preparato
ry works.
How to prepare the surfaces to lay out the heating
cable is described below.
JConcrete floor: provide smooth, clean and dry sur
face (preliminary level uneven floor surface with any
smoothing mixture). Use primer to get better floor sur
face. Wait for the floor to dry after the surface treat
ment (according to the instructions for use).
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It is recommended to apply primer
to the surface
The floor surface should be
smooth, clean and dry

JCeramic floor tiles: provide clean, dry and smooth
surface without sharp edges, irregularities and so on.
JWooden floor: Secure the floor planks, cover with
waterproof plywood sheets 18 mm in thickness or any
other similar material sheets and fix them with screws
to provide reliable and stable base. It is not recom
mended to put plywood sheets onto beams or joists 
such base will not have necessary mechanical
strength. Strong base is important to prevent cracks in
the mortar or adhesive mixture. Sharp edges of these
cracks can damage the heating cable.
JFloor with finishing: previous floor finishing (e.g.
laminates, cork and so on) shall be removed together
with the adhesive layer.
JFinishing (tarbitumen mixture) used as water
proofing: shall be covered with no less that 50 mm
screed. Put the heating cable onto dry screed (screed
drying time is 28 days). Consult the manufacturer if
you use any other waterproofing finishing. We recom
mend you to use high quality mixtures with polymer
plastic additives.
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