User guide

Before You Begin
SECTION 2
3
2.2 Important Electrical Precautions Before Installation
IMPORTANT: Where required, all electrical connections should be performed by a licensed, certied electrician in
accordance with local and national electrical code requirements.
2.2.1TempZone™FloorHeatingCable(Twin)hasanearth-groundingbraid(metalsheath).Theearth-groundingbraidshouldbe
properlygrounded.Thecorewiresshouldbeconnectedtothemainpowersupply.
2.2.2Verifythatcablevoltagematchesthevoltageofcircuit.
2.2.3ChecktheohmsresistanceoftheTempZone™FloorHeatingCable(Twin)before,during,andafterinstallation.Resistance
valueshouldmatchthevaluegivenonthelabelattachedtothecable.Atoleranceof-5/+10%at20ºC(68ºF)isallowed.
2.2.4Localelectricalcodesmayrequirethelow-voltagesensorwiretobeinstalledinconduit.Ifthisisrequired,donotinstallthe
low-voltagesensorleadintheconduitcontainingthecoldleads.Provideaseparateconduitforthelow-voltagesensorwire.
2.2.5WarmlyYoursstronglyrecommendsconnectingtheCircuitCheck™orPowerMan™devicetowarnofaccidentaldamagetothe
TempZone™FloorHeatingCable(Twin)orleadwiresduringinstallation.
2.2.6TempZone™FloorHeatingCable(Twin)shouldbeconnectedtoaListedClass–AGroundFaultCircuitInterrupter(GFCI).If
usingoneofourprogrammableornonprogrammableListedthermostatsthatincludeabuilt-inGFCI,thenaseparateClass–A
GFCIisnotrequired.
2.2.7IftheGFCIistrippedduringnormaloperationandcannotbereset,theremaybeafaultinthecable.DoNOTattempttore-
energizetheTempZone™FloorHeatingCable(Twin).DoNOTbypasstheGFCIunderanycircumstances.Contactaqualied
electricianorWarmlyYoursforassistance.
2.2.8Indicatewhichbranchcircuitsorcircuitbreakerssupplythepowertotheoorheatingcableinaconvenientlocation
(e.g.tapedtothecircuitbreakerbox)forreferencebytheelectricalinspectororhomeowner.RetaintheULlabelsforeach
TempZone™FloorHeatingCable(Twin).LeaveoneULlabelattachedtotheoorheatingcable.
2.2.9UseonlyListedconduit,ttings,andothercomponents.
2.2.10TempZone™FloorHeatingCable(Twin)shallnotextendbeyondtheroomorareainwhichitoriginates.
2.2.11TheTempZone™FloorHeatingCable(Twin)shouldonlybeinstalledbyqualiedpersonnelwhoarefamiliarwiththe
constructionandoperationoftheTempZone™FloorHeatingCable(Twin)andtherisksinvolved.
2.2.12TheinstallationoftheTempZone™FloorHeatingCable(Twin)shallbeinaccordancewithallmanufacturer’sinstructionsand
localandnationalcodes.
2.2.13InCanada,theinstallationshallbemadeaccordingtotheprovisionsofsection62oftheCanadianElectricalCode,Part1.
2.2.14Whenusedinwetlocations,theinstallationshallbeinaccordancewiththeNationalElectricalCode(NEC),NFPA-70and
CAN/CSA-C22.1,CanadianElectricalCode(CEC),PartI.FinalapprovaloftheinstallationistobedeterminedbytheAuthority
HavingJurisdiction(AHJ).TheULListingforthisproductdoesnotcoveruseinwetlocationsintheUnitedStates.Installations
shallbeinaccordancewiththeNationalElectricCode,NFPA70andanyotherapplicablejurisdictionalcodesandnal
acceptanceistobemadebytheAuthorityHavingJurisdiction(AHJ).
WARNING : Risk of electric shock and re. Damage to supply conductor insulation may occur if conductors are
routed less than 2 in. (51 mm) from this heating product. Refer to installation instructions for recommended
means of routing supply conductors.