ELEKTRA SnowTec 400V User manual

www.elektra.eu
ELEKTRA SnowTec®
• SnowTec®
• SnowTec® 400 V
• SnowTec®
Tuff
• SnowTec®
Tuff 400V
Heating
Mats
Instrukcja montażu PL
Installation manual UK
Инструкция по монтажу RU

Applications
ELEKTRA SnowTec®heating mats are intended
for prevention of snow and ice deposition on:
• driveways, roads, parking spaces and terraces,
• viaducts, bridges, loading ramps.
The installation of the heating mats depends
on the type of surface:
• in a layer of sand or dry concrete – for the ag-
stones, paving cobbles or asphalt surfaces,
• directly in concrete – for the concrete slabs
or reinforced concrete surfaces.
LS0H outer sheath
Tinned copper braiding
PET covered aluminum foil shield
XLPE insulation
Multi-wire
heating core
ELEKTRA SnowTec®heating mat’s cable structure
3

Heating Mats
ELEKTRA
ELEKTRA SnowTec®
Tuff heating mats can be
installed:
• directly in asphalt – the mat’s cable is
characterized by high thermal properties,
as well as resistance against bituminous
substances,
• directly in concrete – in concrete surfaces
characterized by the increased risk of
mechanical damage (e.g. in case when
concrete consolidation machinery is utilized),
as the mat’s cable is characterized by high
mechanical strengh.
ELEKTRA SnowTec®Tuff heating mat’s cable structure
primary FEP
insulation
multiwire
heating core
secondary
HDPE insulation
tin plated
copper wire
lapped screen
UV resistant
HFFR external sheath
Characteristics
Heating mats are manufactured as ready-made
units, suitable for direct installation. Composed of
single-side supplied heating cables.
Technical parameters:
• Dimensions:
Width 40 and 60 cm - ELEKTRA SnowTec®heating
mats, 60 cm - ELEKTRA SnowTec®
Tuff heating mats
4

Length from 2 to 25 m for the ELEKTRA SnowTec®
heating mats, from 1.5 – 27 m for the ELEKTRA
SnowTec®
Tuff heating mats
Thickness approx. 7.5 mm
Length of the power supply conductor
(“cold tail”) 4 m
• Surface heat output
– 300 W/m2 for the ELEKTRA SnowTec®heating mats,
– 400 W/m² for the ELEKTRA SnowTec®
Tuff heating mats
• Power supply:
– 230V for the ELEKTRA SnowTec®
and SnowTec®
Tuff heating mats,
– 400V for the ELEKTRA SnowTec® 400V
and SnowTec®
Tuff 400V heating mats
• Min. installation temperature:
-5°C SnowTec®, -25°C SnowTec®
Tuff
• Heating cables are screened, and their mains
connection via a residual current device constitutes
effective anti-shock protection.
• “cold” power supply conductor
• ELEKTRA VCD heating cable (SnowTec®) or
ELEKTRA TuffTec™heating cable (SnowTec®
Tuff)
• connecting joint between the power supply
conductor and the heating cable
• rating label
1
2
3
4
1
4
2 3
5

Heating Mats
ELEKTRA
Przewód grzejny zasilan
y
jednostronnie
Self-adhesive label
Note:
ELEKTRA SnowTec
®
and SnowTec
®Tuff
heating mats
are designed for the rated voltage 230 V, 50 Hz,
and ELEKTRA SnowTec® 400V and SnowTec®Tuff
400V heating mats – for the rated voltage 400
V, 50 Hz.
Heating mats’ power output may vary with +5%
and -10% from the label values.
!
The label features the following pictograph:
Note:
Never cut the heating cable. Only the cable
connecting tape can be cut, in order to shape
the heating mat as desired.
Never trim the heating cable, only the power
supply conductor may be trimmed if required.
Never squash the “cold tail”.
Do not ever undertake on your own any attempts
to repair the heating cables, and in case any
damage is detected, report the damage to
an ELEKTRA authorized installer.
Never stretch or strain the mat excessively,
nor hit it with sharp tools.
Do not install the heating mats when ambient
temperature drops below -5°C (SnowTec
®
), -25°C
(SnowTec®Tuf f).
The heating mat should not cross the expansion
joints.
!
Single-side powered
heating mat
6

Note:
Never lead the end joint and the connecting joint
between the heating cable and the power supply
conductor out of the surface. Both joints must be
placed - depending on the type of surface - within
the layer of sand, dry concrete or directly in concrete.
Never bend the joint and end seal.
Heating mats must be installed in accordance
with the instructions.
Mains connection of the heating mats should be
performed by an authorized electrician.
Power supply conductors (”cold tails”) in asphalt
should be positioned in the protective metal in-
stallation conduit. Alternatively, power supply con-
ductors can be led out of the area where asphalt
will be poured out.
!
General information
The length of the heating mat should match the
dimensions of the surface to be heated.
The heating mat can be shaped as desired by cut-
ting the xing tape (do not cut the heating cable
itself) and turning the mat in the required direction.
Applying insulation layer to the surfaces exposed
to wind from below can improve the effectiveness
of the heating.
To protect large areas against snow and ice depo-
si tion, one option is application of 400 V voltage
heating mats, which would evenly load the electric
supply. Application of such mats could also simplify
installation works, limiting the required number of
heating mats.
After the heating mats has been laid, secure the
mat’s cables to the surface to prevent from displa-
cement and maintain steady cable spacing.
7

Heating Mats
ELEKTRA
Controls
A properly selected control system will ensure
adequate operation of the system only during
snow and freezing rainfall. A temperature controller
with a temperature and moisture sensor will
automatically recognize the weather conditions.
The heating system will be then kept on standby
and only switched on when actually necessary.
For this purpose, DIN-bus installed controllers
ELEKTRA ETR2 and ETO2 can be utilised.
Snow & ice protection controls
ELEKTRA ETOG2 controller – max. load up to 3x16 A.
For applications in extended heating systems.
As standard, equipped with one temperature and
moisture sensor and an installation tube. Additio-
nal temperature and moisture sensor can be
connected to this controller, which will enable
protection of two outdoor areas.
ELEKTRA ETR2G controller – max. load up to 16 A,
total output of installed heating cables must not
exceed 3600 W. As standard, equipped with one
temperature and moisture sensor with installation
tube.
8

The heating mat layout should be commenced
from the side of the power supply, in such a way
to enable easy reach to the electricity supply. If
the cold tail needs to be extended, a heat shrink
joint should be used, ensuring that the connec-
tion is safely sealed.
Installation
Stage 1: Heating mat’s
installation
The heating mat can be laid:
• in the layer of sand constituting
the base for the asphalt, agstones
or paving cobbles surfaces,
• directly in concrete,
• directly in asphalt
(exclusively SnowTec®
Tuff).
ELEKTRA SMCG controller – max. load up to 2x16
A.
For applications in extended heating systems.
Enables remote operation via a web browser and
signaling of operating status or errors.
As standard, equipped with one temperature and
moisture sensor and an installation tube. Addi-
tional temperature and moisture sensor can be
connected to this controller, which will enable
protection of two outdoor areas.
9

Heating Mats
ELEKTRA
Flagstones, paving cobbles
and asphalt surfaces
Stages of works:
• the hard concrete core base that is covered
with a layer of sand or dry concrete of the
min. 30 mm thickness (min. 50 mm for the
asphalt surfaces), and then compacted,
Temperature
and moisture sensor
in installation tube
Paving cobbles
or flagstones
Sand or sand-cement
sub-crust min. 30 mm
ELEKTRA
SnowTec®
heating mat
Compacted
base
Cross section of pavement or driveway
made from agstones or paving cobbles
Flagstones, paving cobbles
and asphalt surfaces
Stages of works:
• the hard concrete core base that is covered
with a layer of sand or dry concrete of the
min. 30 mm thickness (min. 50 mm for the
asphalt surfaces), and then compacted,
• ELEKTRA SnowTec®heating mats are laid on
the layer of the compacted sand or dry con-
crete,
• securing the heating mat’s cables to the sur-
face,
• the mats are completely covered with a layer
of sand or dry concrete,
10

Example of ELEKTRA SnowTec®heating mats as laid
in the garage driveway made from paving cobbles
11

Heating Mats
ELEKTRA
Driveway Garage
Heating
cable
Linear drainage heating
It is also necessary to heat the oor drain (draina-
ge) in order to ensure the outow of water origi-
nating from snow melting. For this, use ELEKTRA
SelfTec®PRO 33 self-regulating cable. Place the ca-
ble at the through bottom, enter the cable’s end
into the drainage down to 0.5 m – 1.0 m deep.
The heating circuit should be connected to the
power source in the electric board of the drive-
way, so that it is switched on simultaneously
with the remaining heating circuits.
12

• ELEKTRA SnowTec®heating mats are laid on
the layer of the compacted sand or dry con-
crete,
• securing the heating mat’s cables to the sur-
face,
• the mats are completely covered with a layer
of sand or dry concrete,
• the nishing surface works follow – stage 4.
When protecting garage driveways against snow
and ice, it is not necessary to heat the entire
surface, but only the tyre tracks. The temperature
and moisture sensor should be placed within the
heated area, but not directly in the tyre tracks
under the car tyres’ path – in order to avoid snow
accumulation and unnecessary operation of the
heating system.
Concrete surfaces
Concrete surfaces require expansion joints.
Unreinforced concrete slabs should be divided
Cross section of pavement or driveway
made of concrete slab
Driveway Garage
Heating
cable
Temperature
and moisture sensor
in installation tube
Compacted
base
Concrete slab
min. 50 mm thick
Expansion
joint
ELEKTRA
SnowTec®
heating mat
13

Heating Mats
ELEKTRA
Asphalt surfaces
Stages of works:
• levelling the hardcore base,
• positioning the ELEKTRA SnowTec®
Tuff heating
mat,
• power supply conductors (”cold tails”) in
asphalt should be positioned in the protective
metal installation conduit. Alternatively, power
supply conductors can be led out of the area
where asphalt will be poured out,
• securing the heating mat’s cables to the surface,
• manual laying out of the 40-50 mm thick
asphalt layer – Stage 4,
• rolling the asphalt surface – Stage 4.
Cross section of a driveway or road with asphalt surface
40-50 mm-thick
layer of asphalt
Temperature
and moisture sensor
in installation tube
ELEKTRA
®
SnowTec Tuff
heating mat
Compacted
base
14

Stage 2: After the heating
mat has been laid
At this stage, it is necessary to undertake the
following steps:
• stick into the Warranty Card the self-adhesive
label, positioned on the power supply
conductor of the heating mat,
• in the Warranty Card, prepare asketch of the
heating mat’s layout positioning,
• feed the power supply conductor of the
heating mat into the switchboard,
• in case of planned delay in connection of the
heating cable to the electrical installation,
seal the power supply cable of the heating
cable against the possibility of internal
moisture penetration, using a protective cap
placed on the conduit or a heat shrinkable
end cap.
• perform the measurements of:
- heating wire resistance,
- insulation resistance.
The measurement results of the heating core’s
resistance should not vary from the one given
on the label with more than -5% and +10%.
The insulation’s resistance for the mat’s
heating cable, as measured with a tool of the
rated voltage 1000 V (e.g. megaohmmeter)
for at least 30 seconds, should not be below
50 MΩ. Enter the results into the Warranty
Card.
When the surface has been nished, repeat
the measurements and compare the results to
ensure that the mat has not been damaged
while surface installation works.
15

Heating Mats
ELEKTRA
(brown
or black)
(yellow-green)
Power supply conductors
Ohmmeter
Megaohmmeter
Insulation resistance measurement
(brown
or black)
(blue)
Heating wire’s resistance measurement
16

Stage 3: Temperature and
moisture sensor’s
installation preparation
• Establish the optimal positioning for the tem-
perature and moisture sensor – a place which
would be especially vulnerable to prolonged
low temperatures and increased moisture
deposition (e.g. in a shade or exposed to wind).
• Feed the protective conduit with the so called
“draw wire” from the planned sensor’s posi-
tioning to the switchboard (after the surface
has been completed, the protective conduit
will enable feeding the temperature and
moisture sensor’s wire).
Note:
Fill the spot selected for the sensor’s installa-
tion with material to be removed after concre-
te or asphalt has been cured (e.g. a wooden
block of 100 x 100 mm and the height equal to
the planned thickness of the nished surface).
!
Note:
The protective conduit should be run in such
a way to enable the future exchange of the tem-
perature and moisture sensor, if required.
!
In case of a signicant sensor’s distance from
the switchboard, or bending of the protective
conduit, it is necessary to:
• install an additional sealed electric box “on
the way” to the board, or
• install the protective conduit with a twisted
pair screened control cable, min. 3-pair (e.g.
LIYC Y-P 3x2x1.5)
– the sensor’s wire with the control cable is to be
connected with a heat shrink connecting joint.
17

Heating Mats
ELEKTRA
Stage 5: Temperature and
moisture sensor’s
installation
The temperature and moisture sensor should be
mounted in an installation tube after the surface
works have been completed.
Stage 4: Finishing
surface works
Concrete and paving cobbles
During surface works, level the installation tube, so
that it is located 5 mm below the surface level. Due
to this, water will be able to accumulate on the tem-
perature and moisture sensor installed in the tube.
Asphalt
At the time of pouring and rolling the asphalt, the
place selected for the positioning of the sensor
should be lled with material which – after the
asphalt has cooled down – will be removed (e.g. a
wooden block 10x10x10 cm in size).
Then, after rolling and cooling down of asphalt
have been completed, mount the installation tube.
The space between the tube and asphalt should be
lled with either concrete or asphalt poured cold,
and the tube should be levelled so that it will be
positioned 5 mm below the level of the surface.
Note:
The section of the protective conduit to be laid
in asphalt should be made of a metal pipe, due
to high temperatures present while asphalting.
!
18

Ground temperature and moisture sensor ETOG-56T with instal-
lation tube (for soil, concrete agstones, paving cobbles etc.)
can be used for heating control of driveways, trafc routes, etc.
Stage 6: Temperature
controller’s
installation
The heating mat connection to the domestic
electric circuit should be performed by an autho-
rised electrician.
The connection of the:
1. mains,
2. power supply conductors of the heating mat,
3. temperature sensor,
should be executed according to the diagram
included in the temperature controller’s Instructions.
Then feed the sensor’s wire with the so called “draw
wire” into the protective conduit installed before
nishing works on the surface. Under the sensor,
excess wire should be allowed (min. 300 mm) for
the future sensor replacement, if required.
Example of temperature and moisture sensor’s installation
in the surface
installation tube
protective
conduit
5 mm
sensor’s wire laid with
approx. 30 см excess
sensor
ller
e.g. concrete
surface
compacted base
under the surface
19

Heating Mats
ELEKTRA
Single-phase electric circuit
Connection diagram of
ELEKTRA SnowTec
®
and SnowTec
®Tuff
heating mats
with temperature and moisture sensor
and ELEKTRA ETR2G controller
ETR2G
230V
sensor cable
heating mat
N
NL
PE
LL
PE
L
N
grey
pink
yellow
white
brown
green
ETR2G
230V
heating mat
grey
pink
yellow
white
brown
green
N
NL
PE
LL
PE
L
N
sensor cable
Single-phase electric circuit Connection diagram of ELEKTRA SnowTec heating mat with temperature
and moisture sensor
and ELEKTRA ETR2G controller
®
20