Danfoss Self-limiting cables on drum Installation guide

Installation Guide - Self- limiting cables on drum

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Installation Guide

Self -limiting cables on drum

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Installation Guide Self-limiting cables on drum

Table of Contents

1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Installation guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4 Application overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5 Thermostats/controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

6 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.1 Fixing elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.2 Connection kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

7 Typical installations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

7.1 Typical pipe tracing installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

7.2 Typical roof protection installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

8 Standard compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

9 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

AN384935621519en-010101 DEVI2

Installation Guide Self-limiting cables on drum

1 Introduction

In this installation guide, the phrase “heating cable” refers to
self-limiting cables on drums.

2 Safety instructions

Heating cables must always be installed according to local
building regulations and wiring rules as well as the guidelines
in this installation manual.

• De-energize all power circuits before installation and service.

• Residual current device (RCD) protection is required. RCD trip
rating is max. 30 mA.

• The screen from each heating cable must be connected to
earthing terminal in accordance with local electricity regulations.

• Heating cables must be connected via a switch providing all
pole disconnection.

• The heating cable must be equipped with a correctly sized
fuse or circuit breaker according to local regulations.

• Never exceed the maximum heat density (W/m or W/m²) for
the actual application. Refer to Application Guide.

• Heating cable must be used together with an appropriate
thermostat to secure against overheating and reduce energy
consumption.

3 Installation guidelines

• It is not recommended to install heating cables at tempera­tures below -5°C.

• Heating cable bending diameter must be at least 10 times
the cable diameter (to the inside of the cable).

• Do not bend connections.

• Free end from cold lead and kit components must be
protected by installer to avoid water from coming in.

• Ensure that the cable is suciently xed and mounted
according to the installation guide.

4 Application overview

To get the full installation guide, warranty registration,
product information, tips & tricks, addresses, etc.

visit www.devi.com

The presence of a heating cable must

• Be made evident by axing caution signs in the fuse box
and in the distribution board or markings at the power
connection ttings and/or frequently along the circuit line
where clearly visible (tracing).

• Be stated in any electrical documentation following the
installation.

For use with sprinkler systems

• The alarm output shall be connected to and monitored by
the re detection alarm system.

• Systems shall be permanently connected to the power supply.

• Minimum ambient temperature shall not be less than -5°C.

• If backup power is being provided for the building electrical
systems, it shall also provide backup power supply for the
trace heating system.

• Heating system for sprinkler systems should be indicated
by "for supply piping and branch lines including sprinkler

heads".

• The heating cables must be temperature controlled.

• Ensure controllers and sensors are connected according to the
applicable installation guide and/or application guide.

• Measure, verify and record insulation resistance during
installation.

• Persons involved in the installation and testing of electrical
trace heating systems shall be suitably trained in all special
techniques required. Installations are intended to be carried

out under the supervision of a qualied person.

.

Tank frost

protection
DEVIpipeguard™ LSZH (T)
DEVIpipeguard™ (B)
DEVIpipeguard™ Industry

Pipe tracing

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 
 

DEVIhotwatt™ (B)
DEVIiceguard™ (T)
DEVIiceguard™ (B)

Heating cables can be customized for the specic project, depending, length of heating cable and length of cold leads.
DEVIiceguard™ heating cables should not be in direct contact with bitumen. For more details contact your local DEVI sales company.

Note: It is the full responsibility of the installer/designer to use proper cold lead dimensioned for the purpose and assembly
sets that establish sucient mechanical strength, ammability resistance, UV resistance and water proong - and to design
the heating unit with correct output for the specic application to avoid overheating of the cable or building materials.

Regarding other types of applications please contact your local DEVI sales company.

More information about applications (maximum linear output, specic output, heating circuit length, voltage etc.) can be found
at www.devi.com

Sprinkler

systems

Domestic hot

water



Roof and

gutter




3DEVI AN384935621519en-010101

Installation Guide Self-limiting cables on drum

5 Thermostats/controllers

Tank frost

protection
DEVIreg™ 330
DEVIreg™ 316
DEVIreg™ 610

Pipe tracing

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DEVIreg™ 850 IV
DEVIreg™ Hotwater
DEVIreg™ Multi

The DEVIreg™ thermostat/controller must be commissioned as prescribed in the installation instruction and adjusted where
local conditions vary in relation to factory settings. Before every heating season or at least once per year, check for faults in the
switchboard, thermostat and sensors.
Each heating cable screen must be earthed in accordance with local electric regulations and connected to a residual current
device (RCD).
The DEVIreg™ thermostat must be commissioned as prescribed in the thermostat manual. Recommended temperature setting is
according to Application Guide or Installation Guide.
More information about thermostats and controllers can be found at www.devi.com.

Sensors:

• Sensors can be live (230 V) components and must be treated according to specic Installation Guide and local standards.

• Sensors can be extended using cable with the same cable construction and cross sections (up to 50 m, sensors for DEVIreg™ 850 IV
should be extended according to Installation guide).

• See section 7 for specic installations.

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2

Sprinkler

systems

5

1

Domestic hot

water



Roof and

gutter



3

4

1 - Controller; 2 - DIN-rail; 3 - Electric cabinet; 4 - Cold lead connection; 5 - Sensor connection

AN384935621519en-010101 DEVI4