nVent RAYCHEM H61652 Manuel utilisateur

Marque: nVent RAYCHEM

Modèle: H61652

Taper: Manuel utilisateur

WinterGard Mesh

Surface Snow Melting System

EN Installation and Operation Manual for Surface Snow Melting

CF Manuel d’installation et d’utilisation pour la fonte de neige en surface

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TABLE OF CONTENTS

Important safeguards and warnings ........................................................................................................................................................... 

. General information ...............................................................................................................................................................................

1.1 Use of the manual ...............................................................................................................................................................................................5

1.2 WinterGard Mesh applications ...........................................................................................................................................................................5

1.3 Safety guidelines ................................................................................................................................................................................................. 5

1.4 Electrical codes ................................................................................................................................................................................................... 5

1.5 Approvals .............................................................................................................................................................................................................5

1.6 Warranty ..............................................................................................................................................................................................................6

1.7 WinterGard Mesh catalog numbers ...................................................................................................................................................................6

. Required parts & equipment ................................................................................................................................................................... 

2.1 Spacer, junction box, supply lead and caution sign .......................................................................................................................................... 7

2.2 Controller ............................................................................................................................................................................................................7

2.3 Panels ..................................................................................................................................................................................................................7

2.4 Conduits .............................................................................................................................................................................................................. 7

2.5 Electrical control equipment ..............................................................................................................................................................................7

2.6 Storage of WinterGard Mesh .............................................................................................................................................................................7

2.7 Test equipment ................................................................................................................................................................................................... 7

. Installation guidelines & procedures ......................................................................................................................................................

3.1 Area to be heated ................................................................................................................................................................................................ 8

3.2 Preparing the subsurface ...................................................................................................................................................................................9

3.3 Conductor resistance and insulation resistance tests.....................................................................................................................................9

3.4 WinterGard Mesh installation ..................................................................................................................................................................... 10-14

. System operation.................................................................................................................................................................................. 

. System maintenance ............................................................................................................................................................................ 

. System troubleshooting ........................................................................................................................................................................ 

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CF IMPORTANT SAFEGUARDS AND WARNINGS

WARNING: FIRE AND SHOCK HAZARD

nVent RAYCHEM WinterGard Mesh Surface Snow Melting Systems must be installed correctly to ensure proper operation and to prevent

shock and fire. Read these important warnings and carefully follow all installation instructions.

• Minimum installation temperature of the WinterGard Mesh Surface Snow Melting System is °F(-°C).

• WinterGard Mesh Surface Snow Melting System is rated weather resistant and suitable for installations in wet areas (-WS).

• Approvals and performance of the WinterGard Mesh Surface Snow Melting systems are based on the use of approved components and

accessories.

• To avoid damage to the heating system, do not energize it until it has been completely embedded and the installation has been

completed.

• Ground fault equipment protection must be used on each branch circuit with this heating system in order to minimize the danger of

fire and to comply with the requirements of nVent warranties, agency certifications, and national electrical codes. Arcing may not be

stopped by conventional circuit protection.

• Heating wires must be spaced at least / in (. cm) from any combustible surface.

• Minimum bending radius of the heating wire must not be less than six times its diameter.

• The heating wire must not touch, cross over, or overlap itself.

• De-energize the heating system before installation or servicing.

• The heating system must be properly grounded according to applicable electrical codes.

• Terminations must be kept dry before, during, and after installation.

• Damaged heating systems can cause electrical arcing or fire. If heating wires or terminations are damaged, they must be repaired or

replaced. Contact nVent customer service for assistance.

• Rebar, wire mesh or other conductive materials used to support the heating system or to sit above it must be grounded in accordance

with CSA Standard C., Section  or the National Electrical Code as applicable.

• Megohmmeters operate at high voltage. This voltage is hazardous and possibly lethal. Read and follow all instructions included with

the instrument you are using.

CAUTION: a ground fault protection device must be used with this heating device.

English

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1. GENERAL INFORMATION

Use of the Manual

This manual covers the installation procedures, testing, and maintenance for nVent RAYCHEM WinterGard Mesh Snow Melting Systems,

accessories, and controls for surface snow melting in concrete, asphalt, and sand or limestone screenings under paving stones*.

This manual assumes that a proper snow melting or anti-icing design has been completed according to nVent's recommendations. Only the

applications described in this manual are approved by nVent for nVent RAYCHEM WinterGard Mesh Surface Snow Melting Systems and only

when used with approved accessories.

The instructions in this manual and the installation instructions included with the control systems, power distribution systems, and

accessories must be followed for the nVent warranty to apply.

For design assistance, technical support, or information regarding other applications not shown here, please contact your nVent

representative or nVent directly.

nVent

7433 Harwin Drive

Houston, TX 77036

USA

Tel +1.800.545.6258

Fax +1.800.527.5703

thermal.info@nVent.com

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Important: For the nVent warranty and agency approvals to apply, the instructions that are included in this manual and product packages

must be followed.

*Special permission for paver snow melting is required from the Authority Having Jurisdiction.

WinterGard Mesh Applications

Surface Snow Melting: Surface snow melting systems prevent the accumulation of snow on ramps, slabs, driveways, sidewalks, platform

scales, and stairs under typical snow conditions.

Anti-Icing: Anti-icing systems keep the surface temperature above freezing to prevent ice formation.

Safety Guidelines

As with any electrical equipment, the safety and reliability of any system depends on the quality of the products selected and the manner

in which they are installed and maintained. Incorrect design, handling, installation, or maintenance of any of the system components could

damage the Surface Snow Melting System and may result in inadequate snow melting, electric shock, or fire. To minimize these risks and to

ensure that the system performs reliably, read and carefully follow the information, warnings, and instructions in this guide.

Pay special attention to the following:

• Important instructions are marked Important

• Warnings are marked WARNING

Electrical Codes

Article 426 of the National Electrical Code (NEC) and Section 62 of the Canadian Electrical Code (CEC) govern the installation of fixed

outdoor surface snow melting and de-icing systems. All installations must be in compliance with these and any other applicable national

and local codes.

Approvals

WinterGard Mesh systems are approved for use in nonhazardous areas only.

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Warranty

nVent warrants all nVent RAYCHEM WinterGard Mesh Systems against faulty workmanship and use of defective materials for two (2) years

from the date of purchase. This warranty can be amended only by a written instrument signed by a duly authorized officer of nVent. Buyer’s

exclusive remedy under this warranty shall be to have nVent, within a reasonable time, repair such goods, or supply replacement goods, or

credit Buyer’s account for such goods and accept their return, whichever nVent may elect at its sole discretion. nVent shall in no event be

liable for the cost of removal or installation, for loss or damage to or loss of use of facilities or other property, loss of revenue, loss of use of

revenue, loss of anticipated profits, or other damages or costs of any kind whatsoever, whether direct, indirect, incidental, or consequential.

Notwithstanding the foregoing, nVent shall have no liability whatsoever unless: (a) Buyer promptly notifies nVent in writing after discovery

of an alleged nonconformity and includes a detailed explanation of the alleged nonconformity; (b) buyer promptly returns goods to nVent

postage prepaid, at 250 West Street, Trenton, Ontario, K8V 5S2, Canada or 7433 Harwin Drive, Houston, Texas, 77036, USA; and (c) nVent

examination of such goods establishes to nVent satisfaction that such alleged nonconformities actually exist and occurred in the cause

of proper and normal use and were not caused by accident, misuse, neglect, alteration or improper installation, repair or testing or such

other cause outside of the responsibility of nVent under this Limited Warranty. THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER

REPRESENTATIONS, WARRANTIES, OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTY

OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT, AND OF ANY OTHER OBLIGATION OR LIABILITY

ON THE PART OF nVent, WHETHER BY STATUTE, CONTRACT, STRICT LIABILITY, TORT OR OTHERWISE. If the goods are a consumer

product in buyer’s jurisdiction, the above exclusion or limitation of incidental or consequential damages and the above disclaimer of implied

warranties may not apply. The term of any such implied warranty is limited to the term of this two-year Limited Warranty. Some jurisdictions

do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply. This warranty gives consumers specific

legal rights, and consumers may also have other rights, which vary by jurisdiction.

WinterGard Mesh Catalog Numbers

The catalog number for WinterGard Mesh encodes the product characteristics as follows:

WM[a]-[bb][cc]

• WM = WinterGard Mesh

• [a] = Voltage

o 1 = 120 V

o 2 = 240 V

• [bb] = Width (ft)

o 02 = 2 ft

o 03 = 3 ft

• [cc] = Length (ft)

o 05 = 5 ft

o 10 = 10 ft

o 15 = 15 ft

o 20 = 20 ft

o 25 = 25 ft

o 30 = 30 ft

o 35 = 35 ft

o 40 = 40 ft

o 45 = 45 ft

o 50 = 50 ft

o 60 = 60 ft

• Area coverage (ft2) = Width x Length

• Power (W) = Area coverage (ft2) x 50 W/ft2

For example, WM1-0205 is 120 Volts, 2 ft wide, 5 ft long, 10 ft2 area, and 500 Watts.

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2. REQUIRED PARTS & EQUIPMENT

Spacer, junction box, supply lead and caution sign

When it is necessary to loosen the heating wire from the mesh, the plastics strips (Model EM2-SPACER-PL) will help maintain the correct

spacing 3” (7.6 cm). For asphalt layer the metal spacer (Model HARD-SPACER-GALV-25MM-25M) should be used. Extension of the cold leads

needs to be done in a junction box. The connection between the control panel and the junction box is made by a suitable supply lead.

For installation in asphalt, the sensor cables must be protected by a metal conduit pipe or be laid under the asphalt layer in the substrate

underneath. The conduit pipe is sealed at the end so the asphalt cannot seep in. Ensure that the heating wire and the splice and end seal

terminations are completely enveloped by the asphalt without air pockets. Allow asphalt to cool to temperature of approximately 212°F

(100°C) before pouring it within 30" (76 cm) of the terminations. This work needs to be done before the asphalt pouring of the entire surface

will be executed.

Minimum one snow melt caution sign (Model SMCS or SMCS-CF) should be used per system.

Controller

nVent offers control units specially designed for the surface snow melting application. They incorporate combined temperature and moisture

sensors to ensure efficient operation of the system.

Panels

nVent offers a range of standard panels specifically designed for the surface snow melting application. Each panel contains a built in control

unit, plus circuit breakers and a residual current device (RCD).

Conduits

Conduits (not included) are required to protect the cold lead and the sensor connection lead.

Electrical control equipment

If nVent standard panels are not used, addition items will be required to complete the system:

• Contactors

• Circuit breakers

• Residual current device (RCD) 30 mA.

Storage of WinterGard Mesh

Storage temperature range: -40°F to 113°F (-40°C to 45°C). Store all system elements in a clean, dry place.

Test equipment

• Ohmmeter

• 2500 Vdc insulation resistance tester (500 Vdc minimum)

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3. INSTALLATION GUIDELINES & PROCEDURES

Area to be heated

Determine the exact area to be heated and consider the following factors:

• Ensure the area to be heated complies with the data in the design instructions. See Table 1 for product selection.

• Establish junction box location(s) and ensure the connection leads are long enough.

• Inspect and clean the substratum before installation, removing sharp objects that can damage the heating element.

• The heating element must not be shortened or altered.

Covered area

Lay the heating cable right

up to the drain-off gutter.

Covered area

Also heat the surfaces on which

braking will occur, e.g. before a

barrier or a magnetic card reader.

Also heat the

drain gutter.

Heat at least three

feet (one meter) into

the covered area, as

incoming vehicles can

bring in snow.

Do not run the heating

mat over expansion joints.

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Preparing the Subsurface

WinterGard Mesh should be installed on a stable subsurface. In suspended structures the substratum may consist of finished slabs,

prestressed concrete or a suspended structure with poured concrete. WinterGard Mesh can be laid on all subsurfaces.

In the case of poured concrete, ensure that the surface is smooth and all sharp objects are removed. Ramps on a solid substratum do not

require additional thermal insulation.

Appropriate preparations should be made for installing the temperature and moisture sensor.

Conductor Resistance and Insulation Resistance Tests

Test WinterGard Mesh by measuring the conductor resistance and the insulation resistance.

Test the conductor resistance with an ohmmeter. The measured resistance should be within -5% to +10% of the nominal resistance values

shown in Table 1.

Cold lead

Conductor

Ohmmeter

Test the insulation resistance with a 2500 Vdc (500 Vdc minimum) insulation resistance tester. The reading should be 100 Mohms or higher.

Cold lead

Conductor

Insulation

resistance

tester

Record all measured values on the Installation Test Record provided.

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Table : WinterGard Mesh Product Selection

Catalog # Voltage (V) Width (ft) Length (ft) Area (ft)  Power (W)

WM1-0205 120 2 5 10 28.8 500

WM1-0210 120 2 10 20 14.4 1000

WM1-0215 120 2 15 30 9.6 1500

WM1-0220 120 2 20 40 7.2 2000

WM1-0225 120 2 25 50 5.8 2500

WM1-0230 120 2 30 60 4.8 3000

WM1-0310 120 3 10 30 9.6 1500

WM1-0315 120 3 15 45 6.4 2250

WM1-0320 120 3 20 60 4.8 3000

WM2-0205 240 2 5 10 115.2 500

WM2-0210 240 2 10 20 57.6 1000

WM2-0215 240 2 15 30 38.4 1500

WM2-0220 240 2 20 40 28.8 2000

WM2-0225 240 2 25 50 23.0 2500

WM2-0230 240 2 30 60 19.2 3000

WM2-0235 240 2 35 70 16.5 3500

WM2-0240 240 2 40 80 14.4 4000

WM2-0245 240 2 45 90 12.8 4500

WM2-0250 240 2 50 100 11.5 5000

WM2-0260 240 2 60 120 9.6 6000

WM2-0310 240 3 10 30 38.4 1500

WM2-0320 240 3 20 60 19.2 3000

WM2-0325 240 3 25 75 15.4 3750

WM2-0330 240 3 30 90 12.8 4500

WM2-0340 240 3 40 120 9.6 6000

WinterGard Mesh Installation

All connections and electrical testing should be carried out by a qualified electrician. For irregularly shaped areas, it is acceptable to cut the

mesh and adjust the heating element position in order to achieve good coverage; however…

• The heating element must not be cut or damaged

• The heating element must not be crossed over itself

• The heating element must not be installed within 3” (7.6cm) of another section of heating element

• WinterGard Mesh must not installed across expansion joints or across separate concrete slabs

Minimum wire spacing is ” (.cm)

The mesh must be secured to the underlaying surface to prevent movement during the installation. The cold lead cable should be protected

in a conduit. The entire length of heating wire should be covered by wet sand-cement mixture, screed, dry sand, or asphalt depending on the

selected top surface.

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Installation Overviews

Cement screed

ground

SoilConcrete/compacted

substrate

WinterGard

Mesh Temperature and

moisture sensor

Installation in cement screed or asphalt

Sand bed / or cement /

sand mixture

1" to1.5"

Stones / paverSoil ground

WinterGard

Mesh

Max. 2.5"

Temperature and

moisture sensor

Installation under pavers

Cement screed

ground

0.75"

SoilConcrete / compacted

substrate

WinterGard

Mesh

Asphalt layer

1.22"

Temperature and

moisture sensor

• Do not use any heavy equipment, machinery, or vehicles on top of an exposed WinterGard Mesh system.

• If the heating element needs to be loosened from the mesh to achieve good coverage, the installer should use spacers to keep the heating element spacing consistent.

• For installation under pavers (stone or brick), ensure that there is a solid base of 4” to 8” (102 mm to 203 mm) of crushed rock aggregate base and that it is tamped down and

prepared for the mortar pour.

Installation under asphalt

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Step : Install the sensor lead

Sensor housing/or

wooden block

Heating

cable

Conduit

Concrete/

Screed/

Asphalt

The sensor lead should be routed

through a metal conduit in the

layer below the heating system.

Step : Make provisions for installation of the temperature/

moisture sensor

For sensors comprising a separate housing and sensor, install only the housing at

this stage. For sensors without a separate housing, use a spacer the same size as

the sensor (such as a wooden block) to create a void for the sensor to be installed

into later.

The sensor housing or spacer should be placed mid-way between heating elements

in an open area, away from trees, bushes, or other obstructions that would prevent

precipitation from falling directly on the sensor.

Support the sensor housing or spacer so that it will be vertical and level with the

lowest point of the adjacent surface.

50505050

Sensor

Heating

cable

Step : Complete the layer below the heating system

Level with the lowest

adjacent surface Surface Sensor Filling material

Sub surface

Install the subsurface materials

in accordance with applicable

building and electrical codes.

Step : Perform Conductor Resistance and Insulation

Resistance Tests as described in section .

Carry out the resistance tests on each circuit to ensure the product

is within spec prior to installation.

Record the values for each circuit on the Installation Test Record.

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Step : Install WinterGard Mesh throughout the heated area

2 ft / 3 ft

xx ft

Laying spacing as given

Spacer

(prestamped plastic strip,

for asphalt metal VIA-Spacer)

Heating cable

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Step : Inspect the heating system

a) Visually check the heating system for damage.

b) Verify that any loose heating cable is secured with spacers.

c) Verify that the correct cable spacing of 3” (10 cm) has been

maintained and that the heating cable is being kept away from

sharp edges and not crossing expansion joints or across separate

slabs.

d) Verify that the heating system is installed at the correct depth

throughout the heated area.

e) Inspect the connection leads for correct installation.

Step : Complete a detailed sketch of the layout

Record the layout of each circuit, with particular reference to the

position of the connection leads.

Step : Perform conductor resistance and insulation

resistance tests as described in section .

Carry out the resistance tests on each circuit to detect any damage

that may have occurred during installation.

Record the values for each circuit on the Installation Test Record.

Step : Install the surface materials

Install concrete, asphalt, or pavers in accordance with applicable

building and electrical codes.

Step : Perform conductor resistance and insulation

resistance tests as described in section .

Carry out the resistance tests on each circuit to detect any damage

that may have occurred after installation.

Record the values for each circuit on the Installation Test

Record.

Step : Connect and install the moisture sensor

Install the moisture sensor

in accordance with the

manufacturer’s instructions.

Ensure the sensor is mounted

vertically and supported at the

correct height so the top of the

sensor is level with the lowest

adjacent surface.

Level with the lowest

adjacent surface

Step : Connect and install the temperature sensor

Install the temperature

sensor in accordance with the

manufacturer’s instructions.

Step : Complete wiring and install control and monitoring

equipment

Install panels, control units, thermostats and manual control

equipment in accordance with the manufacturers’ instructions.

Step : Perform conductor resistance and insulation

resistance tests as described in section .

Carry out the final resistance tests on each circuit prior to powering

up the system.

Record the values for each circuit on the Installation Test Record.

Step : Perform final system inspection and tests

a) Inspect all wiring for conformance to design drawings.

b) Verify that all protection devices have the correct rating.

c) Perform controller checks in accordance with the manufacturer’s

instructions.

d) Complete required testing in accordance with applicable building

and electrical codes.

Step : Documentation

The installer must supply the operator/owner with the layout

drawing and a copy of the Installation Test Record.

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4. SYSTEM OPERATION

Operate the system in accordance with the control and monitoring instructions. Max. exposure temperature for WinterGard Mesh: -149°F

(-65°C) (for asphalt pouring, short term exposure up to 464°F (240°C) is allowed).

5. SYSTEM MAINTENANCE

The system has no moving parts and therefore requires minimum maintenance. Refer to and comply with applicable codes and requirements

for the maintenance of electrical equipment. Circuit breakers should be checked periodically. Residual current devices (RCD) should be

tested at least once annually. Periodically inspect the system controls by operating them to ensure that they function correctly.

6. SYSTEM TROUBLESHOOTING

Trouble Shooting Guide

WARNING: Isolate supply before working on any part of the electrical system.

Problem A: Over-current protection (circuit breaker) trips or blows

Probable causes Correction

Electrical fault at:

• connection lead

• damaged heating cable

Locate and rectify the fault and reset or replace protection.

Protection undersized

Re-establish what the current loads are going to be and install new

protection (NB: if protection is replaced, ensure it is compatible with

the supply cable).

Defective protection Replace

Problem B: Residual current device trips

Probable causes Correction

Excessive moisture in junction box Dry out and check seal; replace if necessary.

Perform an insulation resistance test.

Earth fault at:

• connection

• damaged heating cable

Locate and rectify the fault and reset or replace rcd.

Leakage current too high:

power cable or heating cable too long Correct problem and re-design.

Contactor bouncing Replace with higher quality contactor

Voltage spikes in power supply network Reset rcd. If condition persists, use clean power supply.

Defective rcd Replace

Problem C: Ice/snow not melting

Probable causes Correction

Loss of supply current due to over-currentor residual

current device operating. Follow procedures outlined in A and B above.

Loss of supply cable continuity Locate and rectify fault.

Incorrect setting or operation of system controls Replace

Incorrect contactor sizing or damaged contactor Rectify

Problem D: Ice/snow begins to melt, but system turns off too soon

Probable causes Correction

Incorrect setting or operation of system controls. Repair system control unit or set system controls correctly.

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TABLE DES MATIÈRES

Mises en garde et avertissements importants .......................................................................................................................................... 

. Informations générales ........................................................................................................................................................................ 

1.1 Utilisation du manuel ........................................................................................................................................................................................ 19

1.2 Applications du treillis WinterGard .................................................................................................................................................................. 19

1.3 Informations de sécurité .................................................................................................................................................................................. 19

1.4 Codes de l’électricité ......................................................................................................................................................................................... 19

1.5 Approbations .....................................................................................................................................................................................................19

1.6 Garantie .............................................................................................................................................................................................................20

1.7 Numéros de catalogue du treillis WinterGard .................................................................................................................................................20

. Pièces et équipement nécessaires ........................................................................................................................................................ 

2.1 Entretoise, boîte de jonction, câble d’alimentation et panneau d’avertissement ......................................................................................... 21

2.2 Régulateur ......................................................................................................................................................................................................... 21

2.3 Paneaux ............................................................................................................................................................................................................ 21

2.5 Appareillage de commande électrique ........................................................................................................................................................... 21

2.6 Entreposage du treillis WinterGard .................................................................................................................................................................. 21

2.7 Équipement d’essai .......................................................................................................................................................................................... 21

. Directives et procédures d’installation ................................................................................................................................................. 

3.1 Surface à chauffer ............................................................................................................................................................................................22

3.2 Préparation de la subsurface ...........................................................................................................................................................................23

3.3 Tests de résistance des conducteurs et de résistance d’isolement .............................................................................................................23

3.4 Installation du treillis WinterGard ...............................................................................................................................................................24-28

. Opération du système ...........................................................................................................................................................................

. Entretien du système ............................................................................................................................................................................ 

. Dépannage du système ......................................................................................................................................................................... 

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Français canadien

MISES EN GARDE ET AVERTISSEMENTS IMPORTANTS



Les systèmes de fonte de neige de surface du treillis WinterGuard nVent RAYCHEM doivent être installés correctement pour assurer le bon

fonctionnement et éviter les risques d’incendie ou de chocs électriques. Lisez attentivement les mises en garde suivantes et suivez les

instructions d’installation.

• La température d’installation minimale du système de fonte de neige de surface du treillis WinterGard est de 

• Le système de fonte de neige de surface du treillis WinterGard est classé résistant aux intempéries et convient aux installations dans

les zones humides (-WS).

• Les homologations et le rendement des systèmes de fonte de neige de surface du treillis WinterGuard reposent sur l’utilisation de

composants et d’accessoires approuvés.

• Pour éviter d’endommager le système de chauffage, ne le mettez pas sous tension tant qu’il n’a pas été complètement intégré et que

l’installation n’est pas terminée.

• Une protection d’équipement contre les fuites à la terre doit être utilisée sur chaque circuit de dérivation avec ce système de chauffage

afin de minimiser le risque d’incendie et de se conformer aux exigences des garanties nVent, des certifications d’agence et des codes

électriques nationaux. Un disjoncteur ordinaire peut ne pas être assez sensible pour prévenir les arcs continus.

• Les câbles chauffants doivent être à au moins ,/

• Le rayon de courbure minimum du câble chauffant ne doit pas être inférieur à six fois son diamètre.

• Le câble chauffant ne doit pas se toucher, se croiser ou se chevaucher.

• Mettez le système de chauffage hors tension avant l’installation ou l’entretien.

• Le système de chauffage doit être correctement mis à la terre conformément aux codes électriques applicables.

• Les extrémités doivent être gardées au sec avant, pendant et après l’installation.

• Des systèmes chauffants endommagés peuvent provoquer des arcs électriques et des incendies. Si les câbles chauffants ou les

extrémités sont endommagés, ils doivent être réparés ou remplacés. Contactez le service à la clientèel nVent pour obtenir de l’aide.

• Les barres d’armature, treillis métalliques ou autres matériaux conducteurs utilisés pour soutenir le système de chauffage ou sur lequel

ceux-ci sont installés doivent être mis à la terre conformément à la norme CSA C., section  ou au Code national de l’électricité, le

cas échéant.

• Les mégohmmètres fonctionnent à haute tension. Cette tension est dangereuse et peut-être mortelle. Lisez et suivez toutes les

instructions fournies avec l’instrument que vous utilisez.

Un dispositif de protection contre les fuites à la terre doit être utilisé avec cet appareil de chauffage.

nVent.com/RAYCHEM

1. 

Utilisation du manuel

Ce manuel couvre les procédures d’installation, les tests et l’entretien des systèmes de fonte de neige du treillis WinterGard nVent RAYCHEM,

des accessoires et des commandes pour la fonte de neige de surface dans le béton, l’asphalte, le sable ou les couches de calcaire sous les

pierres de pavage*.

Ce manuel suppose qu’un modèle adéquat de système de fonte de neige ou de déglaçage a été installé conformément aux

recommandations de nVent. Seules les applications décrites dans ce manuel sont approuvées par nVent pour les systèmes de fonte de

neige de surface du treillis WinterGard nVent RAYCHEM et seulement lorsqu’elles sont utilisées avec des accessoires approuvés.

Les instructions de ce manuel et les consignes d’installation qui accompagnent les systèmes de contrôle, les systèmes de distribution

électrique et les accessoires doivent être suivies pour que la garantie de nVent s’applique.

Pour une assistance à la conception, un soutien technique ou des renseignements sur d’autres applications non présentées ici, veuillez

communiquer avec votre représentant nVent ou avec nVent directement.

nVent

7433 Harwin Drive

Houston, TX 77036

ÉTATS-UNIS

Tél. +1.800.545.6258

Fax +1.800.527.5703

thermal.info@nVent.com

nVent.com/RAYCHEM

 Pour que la garantie de nVent et les homologations des agences s’appliquent, les instructions fournies dans ce manuel, y

compris les produits et ensembles, doivent être suivies.

* Une autorisation spéciale est requise de l’autorité compétente ayant juridiction pour les applications de fonte de neige sur la chaussée.

Applications du treillis WinterGard

 Les systèmes de déneigement de surface empêchent l’accumulation de neige sur les rampes, les dalles, les

entrées, les trottoirs, les échelles de plateforme et les escaliers dans des conditions de neige typiques.

 Les systèmes de déglaçage maintiennent la température de la surface au-dessus du point de congélation pour prévenir la

formation de glace.

Lignes directrices en matière de sécurité

Comme avec tout équipement électrique, la sécurité et la fiabilité de tout système dépendent de la qualité des produits sélectionnés et d’une

conception, d’une installation et d’un entretien appropriés. La mauvaise conception, une manutention inappropriée, l’installation ou l’entretien

inadéquats de tout composant du système pourrait endommager le système de déneigement de surface et entraîner un déneigement

inadéquat, une décharge électrique ou un incendie. Pour réduire ces risques et assurer un fonctionnement de manière fiable du système,

lisez attentivement les informations, avertissements et instructions présentés dans le guide et suivez-les à la lettre.

Accordez une attention particulière aux éléments suivants:

• Les instructions importantes sont repérées par le terme Avertissement

• Les avertissements portent la mention AVERTISSEMENT

Codes de l’électricité

L’article 426 du National Electrical Code (NEC) et l’article 62 du Code canadien de l’électricité (CCE) régissent l’installation de systèmes fixes

de fonte de neige de surface et de déglaçage à l’extérieur. Toutes les installations doivent être conformes à ces codes et à tout autre code

national et local applicable.

Homologations

Les systèmes de treillis WinterGard sont approuvés pour une utilisation dans des zones non dangereuses uniquement.

nVent.com/RAYCHEM

Garantie

nVent garantit tous les systèmes de treillis WinterGuard nVent RAYCHEM contre les défauts de fabrication et l’utilisation de matériaux

défectueux pendant deux (2) ans à compter de la date d’achat. Cette garantie ne peut être modifiée que par un document écrit signé par un

agent dûment autorisé de nVent. Le seul recours de l’acheteur en vertu de cette garantie consiste à ce que nVent, dans un délai raisonnable,

répare le produit ou fournisse un produit de remplacement ou encore crédite le compte de l’acheteur pour ledit produit et en accepte le

retour, selon l’éventualité retenue par nVent et ce, à sa seule discrétion. nVent ne doit en aucun cas être tenue responsable du coût de la

dépose ou de l’installation, de tout dommage ou perte de jouissance des lieux ou de toute autre propriété, de toute perte de revenu, de

toute perte de l’utilisation des revenus, de la perte de profits anticipés ou de tout dommage ou coût de quelque nature que ce soit, qu’il

s’agisse de dommages directs, indirects, accessoires ou consécutifs. En dépit de ce qui précède, nVent n’assume aucune responsabilité à

moins que: (a) L’acheteur avise rapidement nVent par écrit après avoir découvert toute non-conformité présumée et fournit une explication

détaillée de ladite non-conformité présumée; (b) l’acheteur retourne sans tarder les produits à l’attention de nVent, port payé, à l’adresse

suivante: 250 West Street, Trenton, Ontario, K8V 5S2, Canada ou 7433 Harwin Drive, Houston, Texas, 77036, USA; et (c) l’examen effectué

par nVent desdits produits établit, à la satisfaction de nVent, que les non-conformités présumées existent réellement et sont survenues

suite à l’utilisation normale du produit, non pas suite à un accident, à une mauvaise utilisation, à de la négligence, à une modification, une

réparation ou une vérification ou toute autre cause ne relevant pas du champ de responsabilité de nVent en vertu de la présente garantie

limitée. LA PRÉSENTE GARANTIE TIENT LIEU DE TOUTE REPRÉSENTATION, GARANTIE OU CONDITIONS, EXPRESSES OU IMPLICITES,

Y COMPRIS, SANS TOUTEFOIS S’Y LIMITER, TOUTE GARANTIE IMPLICITE DE QUALITÉ MARCHANDE, À LA CONFORMITÉ À UN USAGE

PARTICULIER ET À L'ABSENCE D'INFRACTIONS, AINSI QUE TOUTE AUTRE OBLIGATION OU RESPONSABILITÉ DE LA PART DE nVent, QUE

CE SOIT PAR RÈGLEMENT, CONTRAT, RESPONSABILITÉ STRICTE, DÉLIT OU AUTREMENT. Si les produits sont considérés comme un produit

de consommation dans la juridiction de l’acheteur, les exclusions et limitations décrites ci-haut en lien avec les dommages accessoires ou

indirects, ainsi que la clause de non-responsabilité des garanties implicites, peuvent ne pas s’appliquer. Les modalités d’une telle garantie

implicite sont limitées aux modalités de la présente garantie de deux (2) ans. Certaines juridictions ne permettent pas de limitation sur la

durée d’une garantie implicite, dans de tels cas, ces limites peuvent ne pas s’appliquer à vous. Cette garantie donne au consommateur des

droits légaux spécifiques et ce dernier peut avoir d’autres droits, lesquels peuvent différer selon la juridiction.

Numéros de catalogue du treillis WinterGard

Le numéro de catalogue du treillis WinterGard encode les caractéristiques du produit comme suit:

WM[a]-[bb][cc]

• WM = treillis WinterGard

• [a] = tension

o 1 = 120 V

o 2 = 240 V

• [bb] = largeur (pi)

o 02 = 2pi

o 03 = 3pi

• [cc] = longueur (pi)

o 05 = 5pi

o 10 = 10pi

o 15 = 15pi

o 20 = 20pi

o 25 = 25pi

o 30 = 30pi

o 35 = 35pi

o 40 = 40pi

o 45 = 45pi

o 50 = 50pi

o 60 = 60pi

• Surface de couverture (pi2) = largeur x longueur

• Puissance (W) = surface de couverture (pi2) x 50 larg./pi2

Par exemple, WM1-0205 est de 120 V, 2pi de large, 5pi de long, surface de 10 pi2 et 500 W.

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nVent RAYCHEM H61652 Manuel utilisateur

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nVent RAYCHEM H61652 Manuel utilisateur

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