Pentair Raychem IceStop User manual

IceStop System
INSTALLATION AND OPERATION MANUAL FOR
ROOF AND GUTTER DE-ICING SYSTEMS
THERMAL MANAGEMENT WWW.PENTAIRTHERMAL.COM

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Raychem-IM-H58067-IceStopRoofGutterDeIcingCOM-EN 18/01
Important Safeguards and Warnings
WARNING: FIRE AND SHOCK HAZARD.
IceStop roof and gutter de-icing systems must be
installed correctly to ensure proper operation and to
prevent shock and fire. Read these important warnings
and carefully follow all the installation instructions.
•To minimize the risk of fire from sustained electrical
arcing if the heating cable is damaged or improperly
installed and to comply with Thermal Management
requirements, agency certifications, and national
electrical codes, ground-fault equipment protection
must be used on each heating cable branch circuit.
Arcing may not be stopped by conventional circuit
breakers.
•Approvals and performance are based on the use of
Raychem parts only. Do not substitute parts or use
vinyl electrical tape.
•Bus wires will short if they contact each other. Keep
bus wires separated.
•Connection kits and cable ends must be kept dry
before and during installation.
•The black heating cable core and fibers are conduc-
tive and can short. They must be properly insulated
and kept dry.
•Damaged bus wires can overheat or short. Do not
break bus wire strands when scoring the jacket or
core.
•Damaged heating cable or connection kits can cause
electrical shock, arcing or fire. Do not attempt to
repair or energize damaged cable. Remove damaged
sections at once and replace them with a new length
using the appropriate Raychem splice kit. Replace
damaged connection kits.

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Raychem-IM-H58067-IceStopRoofGutterDeIcingCOM-EN 18/01
Table of Contents
1 General Information 1
1.1 UseoftheManual 1
1.2 IceStopApplications 1
1.3 SafetyGuidelines 2
1.4 TypicalRoofandGutterSystem 3
1.5 Approvals 6
1.6 Warranty 6
2 Pre-Installation Checks 7
2.1 CheckMaterials 7
2.2 ConnectionKitsandAccessories 8
2.3 ReviewtheDesign 12
3 Heating Cable Installation 13
3.1 HeatingCableHandling 13
3.2 ProtectingtheHeatingCable 14
3.3 VisualInspection 14
3.4 HeatingCableLayout 15
4 Attachment Methods 29
4.1 Overview 29
4.2 RoofAttachmentMethods 30
4.3 AttachmentMethodsforOtherAreas 35
5 Control, Monitoring and Power Distribution 39
5.1 ControlSystems 39
5.2 PowerDistribution 44
6 Commissioning and Preventive Maintenance 48
6.1 SystemStart-upandOperation 48
6.2 InsulationResistance(Megohmmeter)Test 48
6.3 ContinuityTest 51
7 Test Procedures 52
7.1 Tests 52
7.2 InsulationResistanceTest–Test1 52
7.3 InsulationResistance(Megohmmeter)Test 53
7.4 FaultLocationTests 56

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Raychem-IM-H58067-IceStopRoofGutterDeIcingCOM-EN 18/01
8 Troubleshooting Guide 60
9 Installation and Inspection Records 66

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Raychem-IM-H58067-IceStopRoofGutterDeIcingCOM-EN 18/01
1
General Information
1.1 Use of the Manual
ThismanualcoverstheinstallationofRaychem
IceStoproofandgutterde-icingsystem.Themanual
coversgeneralheatingcableinstallationprocedures
andspecificinstallationdetailsandshowsavailable
connectionkits.Themanualalsodiscussescontrols,
testing,andperiodicmaintenance.
Thismanualassumesthattheproperroofandgutter
de-icingdesignhasbeencompletedaccordingtothe
RoofandGutterDe-Icing:IceStopSystemDesign
Guide(H56070).
OnlytheapplicationsdescribedinSection1.2are
approvedbyThermalManagementforIceStop
systemswhenusedwithapprovedRaychem
connectionkits.Theinstructionsinthismanual
andtheinstallationinstructionsincludedwiththe
connectionkitsmustbefollowedfortheThermal
Managementwarrantytoapply.Contactyour
ThermalManagementrepresentativeforother
applicationsandproducts.
1.2 IceStop Applications
RaychemIceStopisaroofandgutterde-icingsystem
thatprovidesdrainpathsforthefollowing
applications:
•Roofsmadefromstandardroofingmaterials,
includingshake,shingle,rubber,tar,wood,metal,
andplastic.
•Guttersmadefromstandardmaterials,including
metal,plastic,andwood.
•Downspoutsmadefromstandardmaterials,
includingmetalandplastic.
Theguidedoesnotprovideinformationforusingan
IceStopsystemforthefollowingapplications:
•Preventingsnowmovementonroofs—IceStopwill
notkeepsnoworicefromfallingofftheroof.
IceStopisdesignedtoremovemeltwater,not
accumulatedsnow.Snowfencesorsnowguards
shouldbeusedtoeliminatesnowmovement.