Danfoss ECflex Operating guide
MAKING MODERN LIVING POSSIBLE
Installation Guide
ECflex Heating Applications
EFSIC EFTPC
www.EH.danfoss.com
Danfoss A/S is not liable or bound by warranty if these
instructions are not adhered to during installation or service.
The English language is used for the original instructions.
Other languages are a translation of the original instructions.
(Directive 2006/42/EC)
© 2012 Copyright Danfoss A/S
Installation Guide ECflex Heating Applications
Table of Contents
1 Introduction ............................................. 3
1.1 Safety Instructions ...................................... 5
1.2 Installation Guidelines .................................... 7
1.3 System Overview ....................................... 8
1.4 Functional Overview ..................................... 8
2 Installation Step by Step ...................................... 9
2.1 Fastening Methods ...................................... 9
2.2 Calculating C-C Distance ................................... 10
2.3 Planning the Installation ................................... 11
2.4 Preparing the Installation Area ............................... 11
3 Installing Elements ......................................... 11
3.1 Installing Heating Elements ................................. 12
4 Indoor Applications ........................................ 13
4.1 Floor Heating in Thin Beddings ............................... 14
4.2 Floor Heating in Joist Floor Constructions ......................... 15
4.3 Floor Heating with EFCI DRY ................................ 16
4.4 Floor Heating in Concrete Floors .............................. 17
5 Outdoor Applications ....................................... 19
5.1 Snow Melting on Ground Areas ............................... 20
5.2 Frost Protection of Pipes ................................... 21
6 Finalizing the Installation ..................................... 23
7 Optional Settings .......................................... 24
7.1 Floor Temperature Settings ................................. 24
1 Introduction
In this installation manual, the word “element” refers
to heating cables.
For other applications please contact your local sales
office.
The intended uses of the heating elements covered
by this installation manual are shown in the following.
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Installation Guide ECflex Heating Applications
Floor heating in thin beddings (<3 cm)
- see section 4.1.
Floor heating with EFCI DRY
- see section 4.3.
Floor heating in joist floor constructions
- see section 4.2.
Floor Heating in Concrete Floors (>3 cm)
- see section 4.4.
Snow and ice melting on ground areas
- see section 5.1.
4
Frost protection of pipe systems
- see section 5.2.
VIAMJ202 Danfoss Heating Solutions
Installation Guide ECflex Heating Applications
1.1 Safety Instructions
Elements must always be connected by an authorised electrician using a fixed connection.
De-energize all power circuits before installation
▪
and service.
The connection to the power source must not
▪
be directly accessible to the end user.
Each heating cable screen must be earthed in
▪
accordance with local electricity regulations and
connected to a residual current device (RCD).
Recommended RCD trip rating is 30 mA, but
▪
Never cut or shorten the heating element
Cutting the heating element will void the war-
▪
ranty.
Cold leads can be cut or shortened to suit re-
▪
quirements, only.
may be up to 300 mA where capacitive leakage
may lead to nuisance tripping.
Heating elements must be connected via a
▪
switch providing all pole disconnection.
The element must be equipped with a correctly
▪
sized fuse or circuit breaker, e.g. 10/13 A for a
1.5 mm2 cold lead and 16/20 A for a 2.5 mm
cold lead.
2
Elements must always be installed according to local building regulations and wiring rules as well as
the guidelines in this installation manual
Any other installation may hamper element
▪
functionality or constitute a safety risk, and will
void the warranty.
Make sure that elements, cold leads, connection
▪
boxes, and other electrical components do not
come into contact with chemicals or flammable
materials during or after installation.
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Installation Guide ECflex Heating Applications
The presence of a heating element must
be made evident by affixing caution signs or
▪
markings at the power connection fittings
and/or frequently along the circuit line where
clearly visible.
be stated in any electrical documentation fol-
▪
lowing installation.
Never exceed the maximum heat density (W/m2)
for the actual application.
1. Heating cable
2. Thermostat
3. Sensor
4. Screen
5. RCD
6. All-pole
switch
7. Fuse
Connections
Phase - Black
▪
Neutral - Blue
▪
Earth - Screen
▪
6
VIAMJ202 Danfoss Heating Solutions
Installation Guide ECflex Heating Applications
1.2 Installation Guidelines
Caution! Do not use M1 classified elements in
▪
areas subject to high mechanical loads or impact. See section 1.3 for classification.
The product does not contain harmful substan-
▪
ces.
Prepare the installation
site properly by removing sharp objects, dirt,
etc.
Elements may not touch
or cross themselves or
other elements and must
be evenly distributed on
Regularly measure ohmic
resistance and insulation
resistance before and
during installation.
The elements and especially the connection
must be protected from
stress and strain.
areas.
Store in a dry, warm place at temperatures be-
▪
tween +5 °C to +30 °C.
Do not lay heating elements under walls and
fixed obstacles. Min. 6 cm
air is required.
The element should be
temperature controlled
and not operate at ambient temperature higher
than 10°C in outdoor ap-
Keep elements clear of insulation material, other
heating sources and expansion joints.
A floor sensor is recommended in all floor heating applications and
mandatory under wooden floors.
plications.
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Installation Guide ECflex Heating Applications
1.3 System Overview
ECflex EFSIC EFTPC
Mechanical Class (IEC 60800) M2 C (IEC60800: 1992)
Floor heating in thin beddings (<3 cm) D D
Floor heating in joist floor constructions - P
Floor heating with EFCI DRY - P
Floor heating in concrete floors (>3 cm) D P
Snow and ice melting on ground areas D A
Frost protection of pipe systems A P
M2, C For use in applications with higher risk of
mechanical damage.
P Primary recommendation for this applica-
tion.
1.4 Functional Overview
D Designed and approved for this application.
A Applicable but there are better options.
- Not applicable! Do not use!
1. Element
2. C-C distance
3. Cold lead connection
4. Cold lead
5. Connection box (if any)
6. Sensor
7. Thermostat
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VIAMJ202 Danfoss Heating Solutions
Installation Guide ECflex Heating Applications
2 Installation Step by Step
2.1 Fastening Methods
Danfoss TWISTCLIP
For use on reinforcement mesh.
EFCI Fast
For keeping exact C-C distance (2.5 cm steps) on even
surfaces.
Cable ties
For use on reinforcement mesh. Do NOT fix the loop.
The cable must be able to move.
Danfoss CLIP CC
For keeping exact C-C distance (1 cm steps) on even
surfaces, UV resistant.
Tape or hotmelt glue
For fixing elements to hard, dry, even surfaces.
Danfoss Aluminium Tape
For ensuring efficient heat transfer.
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