Danfoss DEVIpipeguard LSZHT User manual

Installation Guide
Self-limiting cables on drum
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. To get the full installation guide, warranty registration, product information, tips & tricks, addresses, etc.
visit www.devi.com .
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.
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".
3 Installation guidelines
• It is not recommended to install heating cables at tempera-
tures 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.
• 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.
4 Application overview
Pipe tracing Tank frost
protection
Sprinkler
systems
Domestic hot
water
Roof and
gutter
DEVIpipeguard™ LSZH (T) 
DEVIpipeguard™ (B)  
DEVIpipeguard™ Industry  
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
3DEVI AN384935621519en-010101

Installation Guide Self-limiting cables on drum
5 Thermostats/controllers
Pipe tracing Tank frost
protection
Sprinkler
systems
Domestic hot
water
Roof and
gutter
DEVIreg™ 330 
DEVIreg™ 316   
DEVIreg™ 610  
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.
1
2
3
4
5
1 - Controller; 2 - DIN-rail; 3 - Electric cabinet; 4 - Cold lead connection; 5 - Sensor connection
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Installation Guide Self-limiting cables on drum
6 Accessories
A comprehensive range of accessories for self- limiting cables is available.
In order to nd all accessories please refer to Product Catalogue or visit www.devi.com
6.1 Fixing elements
DEVIclip™ Roof Hook
For xing cables to roong screws, UV protected.
DEVIclip™ Guard Hook
For xing cables to the snow guard and roof edge,
UV protected.
DEVIclip™ Relief
For relieving cables hanging in downpipes.
Spaceclip
For attaching cables and relieving from sharp edges.
DEVIfast™ Double
For xing cable loops in downpipes.
DEVI Aluminium Tape
For ensuring ecient heat transfer.
5DEVI AN384935621519en-010101

Installation Guide Self-limiting cables on drum
6.2 Connection kits
Connection kits
DEVIpipeguard™ LSZH (T),
DEVIiceguard™ (T)
DEVIpipeguard™ (B),
DEVIhotwatt™ (B),
DEVIiceguard™ (B)
DEVIpipeguard™ Industry
DEVIconnecto

DEVI EasyConnect

Connection kits for
DEVIpipeguard™ Industry

DEVIconnecto
Picture Name Description
DEVIconnecto B-S Heating cable connection with 1,5 m power cable and
end terminal
DEVIconnecto B-C Heating cable slice/extension for connecting two
heating cables
DEVIconnecto B-T Heating cable T-branch as a T-junction for three heating
cables and 1 end terminal
DEVIconnecto B-TE2 Heating cable double connection with 1,5 m power
cable and 2 end terminals
DEVIconnecto B-TE3 Heating cable T-branch with 1,5 m power cable and 3
end terminals
DEVIconnecto B-X Heating cable X-branch for 4 heating cables incl. 2 end
terminals
DEVIconnecto B-A Heating cable connection with power cable 1,5 m
without end terminal
DEVIconnecto B-E Heating cable end terminal
DEVIconnecto Bracket For installation of the DEVIconnecto connection outside
the insulation
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Installation Guide Self-limiting cables on drum
DEVI EasyConnect
Picture Name Description
heating cable
ECM
ECF
power supply
assembly view
DEVI EasyConnect EC-1 Power supply connection set
ECEM
ECS
ECF
ECM
power supply
assembly view
heating cable
DEVI EasyConnect EC-2 Power supply connection set for 2 cables
ECS
ECF ECM
assembly view
power supply
heating cable
DEVI EasyConnect EC-3 Power supply connection set for 3 cables
heating cable
end muff
DEVI EasyConnect EC-ETK End plug set
ECF
ECM
assembly view
end muff
heating cable
DEVI EasyConnect EC-1+ETK Power supply connection set with end plug
7DEVI AN384935621519en-010101

Installation Guide Self-limiting cables on drum
Picture Name Description
assembly view
ECM
ECF heating cable
DEVI EasyConnect EC-T1 Connection set for heating to heating cable
ECEM
ECS
ECM
ECM
assembly view
heating
cable
heating
cable
DEVI EasyConnect EC-T2 Set for heating cable branching – 1 to 2
DEVI EasyConnect EC-JB4 Junction box for connecting 4 heating
cables - 1 to 4
Connection kits for DEVIpipeguard™ Industry
Picture Name Description
Connection kit for
DEVIpipeguard™ 30/60 Industry
(PT-30/60) heating cables
With clamping block for the connection of cold
lead and heating cable, shrink end-cap, shrink
tubes, bitumen gaskets and ferrules.
Connection kit for
DEVIpipeguard™ 30/60 Industry
(PT-30/60) heating cables
For mounting in connection box with screw
connections. With cable gland M20x1,5 with
locknut, shrink end-cap, shrink tubes, bitumen
gasket and ferrules.
Polyester box ABSC for
DEVIiceguard™ and
DEVIpipeguard™
For SLC (DEVIiceguard™, DEVIpipeguard™)
Insulation introduction End plug set
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Installation Guide Self-limiting cables on drum
7 Typical installations
7.1 Typical pipe tracing installation
1
2
3
4
5
45°
90°
45°
90°
45°
90°
45°
90°
1
3
Fig. 1 Fig. 2
1 - Heating cable; 2 - Aluminum tape; 3 - Wire sensor; 4 - Insulation; 5 - Warning label/tape
1. Check the pipe system to be heated and
make sure that the pipes are dry, smooth and
tight. Check and prepare the switch board.
2. Draw a plan positioning cable(s), sensors
and thermostat, cable connections, cold tail,
connection box, cable paths and switch board.
3. Check the insulation resistance of the heat-
ing cables. The measured value shall be no less
than 50 MΩ.
4. Make connection and end terminations
using only authorized accessories.
5. Straight lines and sensor must be tted
as shown at Fig.2. Twisted lines are attached
as shown for every approx.1 m pipe with
aluminum tape.
6. Apply aluminum tape below (mandatory for
plastic pipes) and on top on the whole length
of the cable. Make sure that the cables do not
cross sharp edges.
7. Attach and cover the sensor and the tip on
top of the pipe with aluminum tape. Extend
cold tails/leads and keep connections dry.
Mount connection box on the pipe or close
to it and install the thermostat on the pipe or
near it (depends on thermostat).
8. Re-check the insulation resistance. Connect
cables to connection boxes and to the switch
board.
9. After insulation, place safety marking tape
on the insulation jacket or pipe trenches for
every 5 m. In subsurface installations, a cover
ribbon with a warning sign must be laid 10 cm
above the cables.
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Installation Guide Self-limiting cables on drum
7.2 Typical roof protection installation
1
2
1
2
3
Fig. 3 Fig. 4
1 - Heating cable (UV protected); 2 - Fixing element; 3 -Roof sensor
1. Prepare the installation site properly by re-
moving sharp objects, leaves and mud. Check
and prepare the switchboard.
2. Develop the layout plan for cable(s), sen-
sors and thermostats, cable connections/
cold tails, connection box, cable paths and a
switchboard.
3. Check the insulation resistance of the heat-
ing cables. The measured value shall be no less
than 50 MΩ.
4. Make connection and end terminations
using only authorized accessories.
5. Install the connection box and xing acces-
sories in the gutters, gutter valleys, on the roof
and/or the cable.
6. Install the cable(s) on the roof, in gutters and
downpipes. Check once again and compare
the insulation resistance.
7. Install sensors and extend sensor cables,
cold tails/terminate cables and place connec-
tions dry. Seal all penetrations, e.g. through
roofs and walls.
8. Check once again and compare the insula-
tion resistance. The measured value shall be
no less than 50 MΩ.
9. Install thermostat/controller and connect
cables to the connection boxes and to the
switchboard.
Persons involved in the installation and testing of electrical trace heating systems shall be suitably trained in all special tech-
niques required. Installations are intended to be carried out under the supervision of a qualied person.
Additional installation steps should be done according to Application Guide (www.devi.com).
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Installation Guide Self-limiting cables on drum
8 Standard compliance
EN/IEC 62395-1 Electrical resistance trace heating systems for
industrial and commercial applications - Part 1: General and
testing requirements.
9 Warranty
A 5-year product warranty is valid for:
• self-limiting cables: DEVIiceguard™ (T),
DEVIiceguard™ (B), DEVIpipeguard™ Industry,
DEVIpipeguard™ (B), DEVIhotwatt™ (B).
A 10-year product warranty is valid for:
• self-limiting cable: DEVIpipeguard™ LSZH (T).
Should you, against all expectations, experience a problem with
your DEVI product, you will nd that Danfoss oers DEVIwarranty
valid from the date of purchase that was no later than 2 years from
production date on the following conditions: During the warranty
period Danfoss shall oer a new comparable product or repair the
product if the product is found to be faulty by reason of defective
design, materials or workmanship.The repair or replacement.
The decision to either repair or replace will be solely at the discre-
tion of Danfoss. Danfoss shall not be liable for any consequential
or incidental damages including, but not limited to, damages to
property or extra utility expenses. No extension of the warranty
period following repairs undertaken is granted.
The warranty shall be valid only if the WARRANTY CERTIFICATE is
completed correctly and in accordance with the instructions, the
fault is submitted to the installer or the seller without undue delay
and proof of purchase is provided. Please note that theWARRANTY
CERTIFICATE must be lled in, stamped and signed by the author-
ized installer performing the installation (Installation date must
be indicated). After the installation is performed, store and keep
the WARRANTY CERTIFICATE and purchase documents (invoice,
receipt or similar) during the whole warranty period.
DEVIwarranty shall not cover any damage caused by incorrect con-
ditions of use, incorrect installation or if installation has been car-
ried out by non-authorized electricians. All work will be invoiced in
full if Danfoss is required to inspect or repair faults that have arisen
as a result of any of the above. The DEVIwarranty shall not extend
to products which have not been paid in full. Danfoss will, at all
times, provide a rapid and eective response to all complaints and
inquiries from our customers.
The warranty explicitly excludes all claims exceeding the above
conditions.
For full warranty text visit www.devi.com.
devi.danfoss.com/en/warranty/
WARRANTY CERTIFICATE
The DEVIwarranty is granted to:
The insulation resistance shall be measured by means of a DC voltage of at least 500 V for one minute.
The measured value shall be no less than 50 MΩ.
Address Stamp
Purchase date
Serial number of the product
Product Art. No.
Installation Date
& Signature Insulation [MΩ]
Connection Date
& Signature Insulation [MΩ]
11DEVI AN384935621519en-010101

Installation Guide Self-limiting cables on drum
08091502 & AN384935621519en-010101 Produced by Danfoss © 07/2021
Danfoss
can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to
produc
ts already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
Al
l trademarks in this material are property of the respective companies. Danfoss and all Danfoss logotypes are trademarks of Danfoss A/S. All rights reserved.
Danfoss A/S
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oss.com
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