Danfoss Indoor Heating Applications Operating guide

MAKING MODERN LIVING POSSIBLE
Installation Guide
Indoor Heating Applications
Mats and cables
www.heating.danfoss.com
Installation Guide Indoor Heating Applications & Pipe Tracing
Table of Contents
1 Introduction � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 3
1.1 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Installation guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 System overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Installation step by step� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6
2.1 Calculating C-C distance for heating cables. . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Planning the installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Preparing the installation area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Installing elements � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 7
3.1 Installing heating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Sensor Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Indoor applications � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 9
5 Optional settings � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 17
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Danfoss VIEXD202
Danfoss VIEGC502
Installation Guide Indoor Heating Applications & Pipe Tracing

1 Introduction

In this installation manual, the word “element” refers to both heating cables and heating mats.
If the words “heating cable” or “heating mat” are used, the instruction in question applies only to this type of element.
All dimensioning, product selection, installation and commissioning of any given application are the responsibility of an authorized installer.
Any application using heating elements or thermo­stats purchased by end user must be approved by an authorized electrician prior to commissioning.
• Including type, size, installation and connec­tion of the heating element.
• Including type, size, connection and settings of the thermostat controlling the heating element.
• Children shall not play with the heating element.
• This heating element can be used by children aged from 8 years and above and

1�1 Safety Instructions

persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervi­sion or instruction concerning use of the appliance in a safe way and understand the hazards involved.
• Cleaning and user maintenance shall not be made by children without supervision.
The intended use of the heating elements covered by this installation manual is oor heating, only.
• According to IEC 60335 the mats may not be installed in a metallic oor or storage heating application.
• Mats shall be fully embedded in at least 5 mm concrete, screed, tile adhesive or similar. incl. tiles
Never cut or shorten the heating element
• Cutting the heating element will void the warranty.
• Cold leads can be shortened to suit require­ments.
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Installation Guide Indoor Heating Applications & Pipe Tracing
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Elements must always be connected by an au­thorised electrician using a xed connection�
• De-energize all power circuits before installa­tion and service.
• Each heating element screen must be earthed in accordance with local electricity regulations and connected to a residual cur­rent device (RCD).
• RCD trip rating is max. 30 mA.
• Heating elements must be connected via a
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.
switch providing all pole disconnection.
• The element must be equipped with a cor­rectly sized fuse or circuit breaker according to local regulations.
1. Heating cable
2. Thermostat
3. Sensor
4. Screen
5. RCD
6. All-pole switch
7. Fuse
Connections
• Phase - Brown
• Neutral - Blue
• Earth - Screen
The presence of a heating mat must
• be made evident by axing caution signs or markings at the power connection ttings and/or frequently along the circuit line where clearly visible
• be stated in any electrical documentation following the installation.
Never exceed the maximum heat density (W/m) for the actual application�
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Danfoss VIEXD202
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Installation Guide Indoor Heating Applications & Pipe Tracing

1�2 Installation guidelines

Prepare the installation site properly by removing sharp
objects, dirt, etc.
Keep elements clear of insula-
tion material, other heating
sources and expansion joints
The elements and sensors shall
be installed minimum 30 mm
away from conductive parts of
the building, e.g. water pipes.
Regularly measure ohmic resist-
ance and insulation resistance before and during installation
Elements may not touch or cross
themselves or other elements
and must be evenly distributed
A oor sensor is mandatory and
must be connected to a thermo-
stat limiting the oor tempera-
ture to maximum 35°C.
• Caution! Do not use M1 classied elements in areas subject to high mechanical loads or impact, see section 1.3 for classication.
Do not lay heating elements
under walls and xed obstacles.
Min. 6 cm air is required
The elements and especially the
connection must be protected
from stress and strain.
on areas.
The element should be tempera-
ture controlled and not operate
at ambient temperature higher
than 10°C in outdoor applica-
tions.
• Store in a dry, warm place at temperatures between +5 °C to +30 °C.

1�3 System overview

Standards ECcomfort
(LXmat)
ECbasic
(EFSIC)
ECex
(EFTPC)
ECheat (EFSM)
ECmat (EFTM)
ECaqua
(EFTWC)
60800:2009 (cable) - + (M1) + (M2) - - + (M1)
60335-2-96 (mat) + - - + + -
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Installation Guide Indoor Heating Applications & Pipe Tracing
M1 For use in applications with low risk of mechani­cal damage, e.g. installed on even surfaces and
M2 For use in applications with high risk of mechani­cal damage.
embedded in screeds with no sharp objects.
Floor heating in: ECcomfort
(LXmat)
ECbasic
(EFSIC)
ECex
(EFTPC)
ECheat (EFSM)
ECmat (EFTM)
Thin Beddings (< 3 cm) + + - + + -
Joist Floor Constructions + - + - - -
Danfoss Reflect (+) - + - - -
Concrete Floors (> 3 cm) (+) + + (+) (+) -
Frost protection of pipes - (+) + - - +

2 Installation step by step

2�1 Calculating C-C distance for heating cables

The C-C distance is the distance in centimetres from the centre of one cable to the centre of the next.
For heating of pipes, please refer to the number of cables per metre, see section 4.5.
C - C [cm] =
or
C - C[cm] =
Max� C-C distance
Thin beddings (<3 cm) 10 cm Joist oor constructions 20 cm Danfoss Reflect 20 cm Concrete oors (>3 cm) 15 cm
Area [m]
Cable length [m]
Cable output [W/m] Heat density [W/m]
x 100 cm
x 100 cm
ECaqua
(EFTWC)
• Heating cable bending diameter must be at least 6 times cable diameter.
• The actual cable length may vary +/- 2 %.
230V/400V
C-C [cm] W/m² @ 6 W/m W/m² @ 10 W/m W/m² @ 18 W/m W/m² @ 20 W/m
5 120 200 - -
7,5 80 133 - -
10 60 100 180 200
12,5 48 80 144 160
15 40 67 120 133
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Danfoss VIEXD202
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