Danfoss Self-limiting cables on drum Installation guide
Installation Guide - Self-limiting cables on drum
EN
Installation Guide
Self-limiting cables on drum
Intelligent solutions with lasting effect
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Installation Guide |
Self-limiting cables on drum |
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Table of Contents |
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1 |
Introduction |
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2 |
Safety instructions |
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3 |
Installation guidelines |
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4 |
Application overview |
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Thermostats/controllers |
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Accessories |
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6.1 |
Fixing elements |
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6.2 |
Connection kits |
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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
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AN384935621519en-010101 |
DEVI |
Installation Guide |
Self-limiting cables on drum |
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1 Introduction
In this installation guide, the phrase “heating cable” refers to self-limiting cables on drums.
2 |
Safety instructions |
To get the full installation guide, warranty registration, product information, tips & tricks, addresses, etc.
visit www.devi.com.
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 |
The presence of a heating cable must
•Be made evident by affixing caution signs in the fuse box and in the distribution board or markings at the power connection fittings 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 fire 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".
•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 sufficiently fixed and mounted according to the installation guide.
•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 qualified person.
4 |
Application overview |
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Pipe tracing |
Tank frost |
Sprinkler |
Domestic hot |
Roof and |
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protection |
systems |
water |
gutter |
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DEVIpipeguard™ LSZH (T) |
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DEVIpipeguard™ (B) |
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DEVIpipeguard™ Industry |
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DEVIhotwatt™ (B) |
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DEVIiceguard™ (T) |
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DEVIiceguard™ (B) |
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Heating cables can be customized for the specific 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 sufficient mechanical strength, flammability resistance, UV resistance and water proofing - and to design the heating unit with correct output for the specific 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, specific output, heating circuit length, voltage etc.) can be found at www.devi.com
DEVI |
AN384935621519en-010101 |
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Installation Guide |
Self-limiting cables on drum |
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5 |
Thermostats/controllers |
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Pipe tracing |
Tank frost |
Sprinkler |
Domestic hot |
Roof and |
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protection |
systems |
water |
gutter |
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DEVIreg™ 330 |
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DEVIreg™ 316 |
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DEVIreg™ 610 |
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DEVIreg™ 850 IV |
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DEVIreg™ Hotwater |
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DEVIreg™ Multi |
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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 specific 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 specific installations.
5
2
1
3
4
1 - Controller; 2 - DIN-rail; 3 - Electric cabinet; 4 - Cold lead connection; 5 - Sensor connection
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AN384935621519en-010101 |
DEVI |
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