© 2016 tekmar 670_D - 10/16
670_D10/16
Snow Melting Replaces: New
WiFi Snow Melting Control 670
Installation & Operation Manual
Features• MobileappforiOSandAndroid• Automaticsoftwareupdates• Automaticsnow/icedetection• Supportsbothinslab&retrofitaerialsensors• Supportsmultiplezoneswithpriority• Idling
• AutoStorm• WarmWeatherShutDown• ColdWeatherCutOff• EconoMelt• SlabProtection• TandemSnow/IceDetection• Equipmentexercising
IntroductionTheWiFiSnowMeltingControl670operateshydronicandelectricheatingequipmentdesignedtomeltsnowand/oricefromroadsandwalkwaysurfaces.ThecontrolworkswiththetekmarSnow/IceSensor090orSnowSensor095toautomaticallydetectsnoworiceandoperatesasingleboiler,steamvalve,orelectriccabletosupplyheattotheslab.Boilerreturnprotectionisprovidedtonon-condensingboilersusingamixingvalveorvariablespeedinjectionmixingpump.ThetekmarConnectmobileapplicationallowsforremoteoperationandmonitoringofthesnowmeltingsystemfromanywhereintheworld.
20Mod Boiler 19
WiFi Snow Melting Control 670Boiler & Mixing / Electric
Power 115 V (ac) ±10%, 60 Hz, 20 VARelays 230 V (ac) 5 A 1/3 hpVar. Pump 230 V (ac) 2.4 A
1084-01Designed and assembled in Canada
Date
Cod
eH
2055
A
1 kΩ max 1 kΩ max
Opn3
Var
2
–Mix V/mA1
+Pwr4
MixCls5
Blu8
Yel9
Brn/10
SlabMan
11
MeltC
12Blk/7
ComRed6
Boiler 121
Stage 1Boiler 1Stage 2
HeatRelay
SystemPump–
22
+
23 24 25Do Not Apply Power
Mix15
SupCom16
Boil17
Out18
Com14
tN413 282726
Power29
L
30
N
For product literature:Pour la documentation du produit:Para la literatura del producto:tekmarControls.com
Disconnect all power before opening.WARNING
Coupez l'alimentation avant l'ouverture.ATTENTION
Desconecte la electricidad antes de abrir.ADVERTENCIA
Signal wiring must be rated at least 300 V.Le câblage du signal doit être d'une capacité d'au moins 300 V.Cableado de señal debe tener unacalificación mínima de 300 V.
Contains WiFi transceiver:FCC ID: Z64-CC3100M0DR1, IC: 4511-CC3100M0DR1Meets Class B: FCC Part 15B, ICES-003
Manual Melt
Time Left- - : - - hrs
Outdoor32 °F
Settings Status
System is Melting
Stop
10:30 AM
Warming Up
2of48© 2016 tekmar 670_D - 10/16
Table of Contents
Getting Started
ImportantSafetyInformation.............................................3Installation.........................................................................4
Preparation.................................................................... 4PackagingContents...................................................... 4PhysicalDimensions..................................................... 4InstallationLocation....................................................... 4InstallingtheEnclosure................................................. 5Rough-InWiring............................................................. 6SensorWiring................................................................ 7tekmarNet...................................................................... 9ManualMeltInput......................................................... 10EquipmentWiring......................................................... 10TestingtheSensorWiring............................................ 13TestingtheControlWiring............................................ 13ManualOverride–MaximumHeat.............................. 14ManualOverride–Purge............................................. 14ManualOverride–Test................................................ 14ManualOverride–Off.................................................. 14AccessLevels............................................................... 14
UserInterface...................................................................15HomeScreen................................................................ 15SystemOperation......................................................... 15Symbols........................................................................ 16HelpScreen.................................................................. 16StatusMenuNavigation............................................... 16SystemStatusMenu.................................................... 17SlabStatusScreen....................................................... 18WeatherStatusScreen................................................ 18SettingsMenuNavigation............................................ 19TempMenu................................................................... 20AwayMenu................................................................... 21DisplayMenu................................................................ 21WiFiMenu..................................................................... 22TimeMenu.................................................................... 22EnergyMenu................................................................ 23MonitorMenu................................................................ 24Setup–SystemSetupMenu........................................ 25Setup–BoilerSetupMenu.......................................... 26Setup–MixingSetupMenu......................................... 27tekmarNetMenu........................................................... 28ToolboxMenu............................................................... 29OverrideMenu.............................................................. 30
tekmarConnectMobile&WebApp.................................31AddControltoApp....................................................... 31Account......................................................................... 32MyDevices................................................................... 32ControlOperation......................................................... 33EnergyUsage............................................................... 33
SequenceofOperation................................................... 34SnowMeltingOverview................................................ 34Melt–AutomaticStartandStop.................................. 34Melt–EconoMelt.......................................................... 35AdditionalMeltingTime................................................ 35Melt–AutomaticStartandTimedStop....................... 35TandemSnow/IceDetection........................................ 36Melt–ManualStartandTimedStop........................... 36Melt-TrackedStartandStop...................................... 36IdleOperation............................................................... 37StormOperation........................................................... 37SlabTemperatureControl............................................ 37SlabProtection............................................................. 38WarmWeatherShutDown........................................... 38ColdWeatherCutOff................................................... 38SnowMeltZonesandPriority...................................... 38TimeClock.................................................................... 40AwayOperation............................................................ 40tekmarNetSceneOperation......................................... 40ApplicationModes........................................................ 41ElectricOperation......................................................... 41PulseWidthModulationZoneOperation..................... 41BoilerOperation............................................................ 42MixingOperation.......................................................... 43BoilerandMixingOperation......................................... 43OutdoorSensor............................................................ 43Exercising..................................................................... 43PostPurge.................................................................... 43
Troubleshooting............................................................... 44ErrorMessages(1of4)................................................ 44ErrorMessages(2of4)................................................ 45ErrorMessages(3of4)................................................ 46FrequentlyAskedQuestions........................................ 47
TechnicalData................................................................. 48LimitedWarrantyandProductReturnProcedure........... 48
CongratulationsonthepurchaseofyournewSnowMeltingControl!Thismanualcoversthecompleteinstallation,programmingandsequenceofoperationforthiscontrol.Youwillalsofindinstructionontesting,commissioning,andtroubleshootingthecontrolandsystemthatitoperates.
© 2016 tekmar 670_D - 10/163of48
Theinstallermustensurethatthiscontrolanditswiringareisolatedand/orshieldedfromstrongsourcesofelectromagneticnoise.Conversely,thisClassBdigitalapparatuscomplieswithPart15oftheFCCRulesandmeetsallrequirementsoftheCanadianInterference-CausingEquipmentRegulations.However,ifthiscontroldoescauseharmfulinterferencetoradioortelevisionreception,whichisdeterminedbyturningthecontroloffandon,theuserisencouragedtotrytocorrect
theinterferencebyre-orientatingorrelocatingthereceivingantenna,relocatingthereceiverwithrespecttothiscontrol,and/orconnectingthecontroltoadifferentcircuitfromthattowhichthereceiverisconnected.CetappareilnumériquedelaclasseBrespectetouteslesexi-gencesduRèglementsurlematérielbrouilleurduCanada.
Radio Frequency Interference
Important Safety InformationItisyourresponsibilitytoensurethatthiscontrolissafelyinstalledaccordingtoallapplicablecodesandstandards.tekmarisnotresponsiblefordamagesresultingfromimproperinstallationand/ormaintenance.
Thisisasafety-alertsymbol.Thesafetyalertsymbolisshownaloneorusedwithasignalword(DANGER,WARNING,orCAUTION),apictorialand/orasafetymessagetoidentifyhazards.Whenyouseethissymbolaloneorwithasignalwordonyourequipmentorinthismanual,bealerttothepotentialfordeathorseriouspersonalinjury.
Thispictorialalertsyoutoelectricity,electrocution,andshockhazards.
Thissymbolidentifieshazardswhich,ifnotavoided,couldresultindeathorseriousinjury.
Thissymbolidentifieshazardswhich,ifnotavoided,couldresultinminorormoderateinjury.
Thissymbolidentifiespractices,actions,orfailuretoactwhichcouldresultinpropertydamageordamagetotheequipment.
ReadmanualandallproductlabelsBEFOREusingtheequipment.Donotuseunlessyouknowthesafeandproperoperationofthisequipment.Keepthismanualavailableforeasyaccessbyallusers.ReplacementmanualsareavailableattekmarControls.com
• Itistheinstaller’sresponsibilitytoensurethatthiscontrolissafelyinstalledaccordingtoallapplicablecodesandstandards.
• Improperinstallationandoperationofthiscontrolcouldresultindamagetotheequipmentandpossiblyevenpersonalinjuryordeath.
• Thiscontrolisnotintendedforuseasaprimarylimitcontrol.Othercontrolsthatareintendedandcertifiedassafetylimitsmustbeplacedintothecontrolcircuit.
Donotattempttoservicethecontrol.Therearenouserserviceablepartsinsidethecontrol.Attemptingtoservicethecontrolvoidsthewarranty.
4of48© 2016 tekmar 670_D - 10/16
Preparation
Tools Required-----------------------------------------------------------------------------------------• tekmarorjewelerscrewdriver• Phillipsheadscrewdriver
• Needle-nosepliers• Wirestripper
Materials Required-------------------------------------------------------------------------------------• 18AWGLVTsolidwire(low-voltageconnections)• 14AWGsolidwire(line-voltageconnections)
• Four1/8"-1"woodscrews
Installation Location
Installation
Physical Dimensions
Choosetheplacementofthecontrolearlyintheconstructionprocesstoenableproperwiringduringrough-in.
• Keepthecontroldry.Avoidpotentialleakageontothecontrol.• Maintainrelativehumiditylessthan90%inanon-condensingenvironment.• Avoidexposuretoextremetemperaturesbeyond32-122°F(0-50°C).• Installawayfromequipment,appliances,orothersourcesofelectricalinterference.• Installtoalloweasyaccessforwiring,viewing,andadjustingthedisplayscreen.• Installapproximately5feet(1.5m)offthefinishedfloor.• Locatethecontrolnearpumpsand/orzonevalvesifpossible.• Provideasolidbackingwhichtheenclosurecanbemountedto.Example:plywoodorwallstuds.• Usetheconduitknockoutsprovidedontheupper,lower,backandsidesoftheenclosureforwiring.
Packaging Contents
Thefollowingareincludedintheproductpackaging:• 1WiFiSnowMeltingControl670• 3UniversalSensor082• 1OutdoorSensor070• 1screwdriver
• 1ApplicationBrochure670_A• 1InstallationandOperationManual670_D• 1UserManual670_U
Front View Side View
2–7/8"(72 mm)
1/2" Knock-out (x 5 back) (x 5 bottom)
Mounting Base
CL
1/2"(13 mm)
7/8"(23 mm)
6–5/8"(170 mm)
7–5/8"(193 mm)
1–7/8" (49 mm)
1/2"(14 mm)
3/16" (5 mm)
20Mod Boiler 19
WiFi Snow Melting Control 670Boiler & Mixing / Electric
Power 115 V (ac) ±10%, 60 Hz, 20 VARelays 230 V (ac) 5 A 1/3 hpVar. Pump 230 V (ac) 2.4 A
1084-01Designed and assembled in Canada
Date
Cod
eH
2055
A
1 kΩ max 1 kΩ max
Opn3
Var
2
–Mix V/mA1
+Pwr4
MixCls5
Blu8
Yel9
Brn/10
SlabMan
11
MeltC
12Blk/7
ComRed6
Boiler 121
Stage 1Boiler 1Stage 2
HeatRelay
SystemPump–
22
+
23 24 25Do Not Apply Power
Mix15
SupCom16
Boil17
Out18
Com14
tN413 282726
Power29
L
30
N
For product literature:Pour la documentation du produit:Para la literatura del producto:tekmarControls.com
Disconnect all power before opening.WARNING
Coupez l'alimentation avant l'ouverture.ATTENTION
Desconecte la electricidad antes de abrir.ADVERTENCIA
Signal wiring must be rated at least 300 V.Le câblage du signal doit être d'une capacité d'au moins 300 V.Cableado de señal debe tener unacalificación mínima de 300 V.
Contains WiFi transceiver:FCC ID: Z64-CC3100M0DR1, IC: 4511-CC3100M0DR1Meets Class B: FCC Part 15B, ICES-003
Manual Melt
Time Left- - : - - hrs
Outdoor32 °F
Settings Status
System is Melting
Stop
10:30 AM
Warming Up
© 2016 tekmar 670_D - 10/165of48
Installing the Enclosure
• Installthecontrolenclosuretoawallortoanelectricalbox.• Threewiringchamberdividersareincluded.Thedividersprovideabarriertokeeplowvoltagewiringseparatedfromline
voltagewiring.• Ifthedividersarenotused,thenlowvoltagecircuitsmustusewireratedatleast300V.
Press down at the fingertipgripsontopofthefrontcoverandpulloutanddown.
Lift thefrontcoverupandawayfromthecontrol.
Loosen the screws at thefrontofthewiringcover.
Thewiringcoverpullsstraightoutfromthewiringchamber.
Thebaseisreadyformounting.Thecontrolliftsupandawayfromthebase.
Pressthecontrolreleasecliponthebaseinsidethewiringchamberandslidethecontrolupwards.
Remove the safety dividersfrom the wiring chamber bypulling them straight out oftheirgrooves.
Thereare10conduitknock-outsatthebackandbottomofthewiringchamber.
13Mountingholes
Controlrelease
clip
Controlreleaseclip
Thecontrol canbemountedonastandardDINrail.Firstremovethecontrolfromitsbaseandthen,using the hooks and spring cliponthebackofthecontrol,mountitontotheDINrail.Thiswillbeapopularoptionforthosewhoprefertomountthecontrolinsidealargerelectricalpanel.TheDINSnapKitM9303issoldseparately.
The wiring can enter thebottomorthebackoftheenclosure.Knock-outspro-videdinthebaseallowthewiringtoberuninconduitup to the enclosure. Thebase also has holes thatlineupwith themountingholes of most commonelectricalboxes.
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Rough-In Wiring
Low-Voltage Wiring-------------------------------------------------------------------------------------Pull two conductor 18 AWG LVT cable, up to 500 feet (150 m) long, for the following equipment:• Outdoortemperaturesensor• Mixsupplysensor• Boilersensor• Single-stageon/offboiler• Modulatingboiler0-10V(dc)or4-20mA• Mixingvalveormixinginjectionpumpusinga0-10V(dc)
or4-20mAsignal.
Pull three conductor 18 AWG LVT cable, up to 500 feet (150 m) long, for the following equipment:• MixingvalvesusingafloatingactionsignalPull four conductor 18 AWG LVT cable, up to 500 feet (150 m) long, for the following equipment:• SnowSensor095• Two-stageon/offboilerPull the Snow/Ice Sensor 090 or 094 cable to the control.
Line-Voltage Wiring------------------------------------------------------------------------------------Pull two conductor 14 AWG cable, up to 500 feet (150 m) long, for the following equipment:• Systempump• Boilerpump• Heatexchangeron/offinjectionpump• Variablespeedinjectionpump
Topreventtheriskofpersonalinjuryand/ordeath,makesurepowerisnotappliedtothecontroluntilitisfullyinstalledandreadyforfinaltesting.Allworkmustbedonewithpowertothecircuitbeingworkedonturnedoff.Pleasebeawarelocalcodesmayrequirethiscontroltobeinstalledorconnectedbyanelectrician.
• Installthesuppliedwiringcompartmentbarriersbyslidingthemintothegroovesprovidedtoisolatethelowandline-voltagewiring.
• Stripallwiringtoalengthof3/8in.or10mmforallterminals.• Acircuitbreakerorpowerdisconnectthatprovidespowertothecontrolshouldbelocatednearbyandclearlylabeled.• Refertothecurrentandvoltageratingsatthebackofthismanualbeforeconnectingdevicestothiscontrol.
© 2016 tekmar 670_D - 10/167of48
• Thetemperaturesensor(thermistor)isbuiltintothesensorenclosure.
• Theoutdoorsensorcaneitherbemounteddirectlyontoawallandthewiringshouldenterthroughthebackorbottomoftheenclosure.Donotmounttheoutdoorsensorwiththeconduitknockoutfacingupwardsbecauseraincouldentertheenclosureanddamagethesensor.
• Inordertopreventheattransmittedthroughthewallfromaffectingthesensorreading,itmaybenecessarytoinstallaninsulatingbarrierbehindtheenclosure.
• Theoutdoorsensorshouldbemountedonanorth-facingwall.Theoutdoorsensorshouldnotbeexposedtoheatsourcessuchasventilationorwindowopenings.
• Theoutdoorsensorshouldbeinstalledatanelevationabovethegroundthatwillpreventaccidentaldamageortampering.
Mounting the Outdoor Sensor--------------------------------------------------------------------------
• Connect18AWGorsimilarwiretothetwoterminalsprovidedintheenclosureandrunthewiresfromtheoutdoorsensortothecontrol.Donotrunthewiresparalleltotelephoneorpowercables.Ifthesensorwiresarelocatedinanareawithstrongsourcesofelectromagneticinterference(EMI),shieldedcableortwistedpairshouldbeusedorthewirescanberuninagroundedmetalconduit.Ifusingshieldedcable,theshieldwireshouldbeconnectedtotheComter-minalonthecontrolandnottoearthground.
• Followthesensortestinginstructionsinthismanualandconnectthewirestothecontrol.
• Replacethefrontcoverofthesensorenclosure.
Wiring the Outdoor Sensor-----------------------------------------------------------------------------
Removecoverby
slidingup-wardsaway
fromthebase.
Towirefromtheback,
removetheknock-outinthesensor
base.
S1S1
Ifusingconduit,
removetheflexibleplug
fromthebasebottom.
S1S1 Attachthe
basetothewall,soffit
orelectricalbox.
S1S1
Wires from outdoorsensor to control’soutdoor sensor andsensor commonterminals
Sensor is built intothe enclosure
Wiresfromoutdoorsensor
andsensorcommon
terminalsontekmarcontrolS1
S1
Sensor Wiring
Atthecontrol:• Connecttheoutdoorsensortoterminals16and18.
Com16
Boil17
Out18
8of48© 2016 tekmar 670_D - 10/16
TheUniversalSensor082isdesignedtomountonapipeorinatemperatureimmersionwell.Thesensorshouldbeplaceddownstreamofapumporafteranelboworsimilarfitting.Thisisespeciallyimportantiflarge-diameterpipesareusedasthethermalstratificationwithinthepipecanresultinerroneoussensorreadings.Propersensorlocationrequiresthatthefluidisthoroughlymixedwithinthepipebeforeitreachesthesensor.
Strapped to PipeTheUniversalSensorcanbestrappeddirectlytothepipeusingthecabletieprovided.Insulationshouldbeplacedaroundthesensortoreducetheeffectofaircurrentsonthesensormeasurement.
Mounting the Boiler and System Sensors--------------------------------------------------------------
Mounting the Mix Supply Sensor-----------------------------------------------------------------------Themixsupplysensorisusedwhenoperatingamixingvalveoravariablespeedinjectionpumpisinstalled.• Ifapplicable,connectthemixsupplysensortoterminals14and15.
Mounting the Boiler Sensor----------------------------------------------------------------------------
Theboilersensorisusedwhenoperatingaboiler.• Ifapplicable,connecttheboilersensortoterminals16and17.
BottomofEnclosure080
UniversalSensor
CableTie
SensorWell
RetainingClip
UniversalSensor
Immersion WellIfaUniversalSensorismountedonto1"(25mm)diameterLtypecopperpipe,thereisapproximatelyan8seconddelaybetweenasuddenchangeinwatertemperatureandthetimethesensormeasuresthetemperaturechange.Thisdelayincreasesconsiderablywhenmildsteel(blackiron)pipeisused.Ingeneral,itisrecommendedthatatemperaturewellbeusedforsteelpipeofdiametergreaterthan1-1/4"(32mm).Temperaturewellsarealsorecommendedwhenlargediameterpipesareusedandfluidstratificationispresent.
Conduit ConnectionTheUniversalSensorandUniversalSensorEnclosure080(soldseparately)arespecificallydesignedtomountontoa3/8"(10mm)IDtemperaturewellthatissuppliedwithanendgroove.Toinstallthewell,plumbateeintothepipeandfixthewellintothetee.The080enclosurehasa7/8"(22mm)backknockoutthatmustberemovedandfittedoverthetemperaturewell.Theuniversalsensoristheninsertedintothewellandtheretainingclipsuppliedwiththeenclosureissnappedontothewellendgroove.Ifthewellhasathreadedend,theinstallermustsupplyastandardthreadedconduitretainingring.Thetwowiresfromthesensorareconnectedtotheterminalblockprovidedintheenclosure.Theothersideoftheterminalblockisusedtoconnectwiresfromthecontrol.
Com16
Boil17
Mix15
SupCom14
© 2016 tekmar 670_D - 10/169of48
Snow/Ice Sensor---------------------------------------------------------------------------------------
Snow Sensor-------------------------------------------------------------------------------------------
Slab Sensor--------------------------------------------------------------------------------------------
ASnow/IceSensor090or094canbeconnectedtothecontrol.The090hasa65'(20m)cableandthe094hasa208'(63m)cable.Thecablemaybeextendedtoatotallengthof500'(150m)using18AWGcable.Anyjunctionboxesmustkeptdry.
IftheSnow/IceSensorinputisused:• Connecttheredwiretoterminal6.• Connecttheblackwiretoterminal7.• Connectthebluewiretoterminal8.• Connecttheyellowwiretoterminal9.• Connectthebrownwiretoterminal10.
ASnowSensor095canbeconnectedtothecontrol.
IftheSnowSensorinputisused:• Connecttheredwiretoterminal6.• Connecttheblackwiretoterminal7.• Connectthebluewiretoterminal8.• Connecttheyellowwiretoterminal9.
ASlabSensor072or073canbeinstalledeitheraloneortogetherwithaSnowSensor095.
IftheSlabSensorinputisused:Connecttheslabsensortoterminals7and10.
tekmarNet
The670canbeconnectedtoothertekmarNetcommunicationcompatiblecontrolsusingthetN4bus.
IftekmarNetisused:• ConnecttN4onthe670terminal11tothetN4wiringterminalontheotherdevice.• ConnectConthe670terminal12totheCwiringterminalontheotherdevice.• tekmarNetispolaritysensitive.
Blu8
Yel9
Brn/10
SlabBlk/7
ComRed6
SnowSensor
095
Blu8
Yel9
Brn/10
SlabBlk/7
ComRed6
Blu8
Yel9
Brn/10
SlabBlk/7
ComRed6
other tN4 control
670
11C
12tN4 CtN4
10of48© 2016 tekmar 670_D - 10/16
Equipment Wiring
Wiring the Analog Mixing Output-----------------------------------------------------------------------Thecontrolcanoperateamixingvalvebyprovidinga0-10V(dc)ora4-20mAsignaltothevalveactuatingmotor.• Ifapplicable,connectthemixingactuatorpositive(+)toterminal1.• Ifapplicable,connectthemixingactuatornegative(-)toterminal2.
Thecontrolprovidesafloatingactionsignaltooperateafloatingactionactuator.Thefloatingactionmixingoutputusesdryrelaycontactsthatcanswitcheither24,120,or230V(ac).Whenusing24V(ac),aTransformer009isrequiredtopowertheactuator.Theactuatorterminalsaretypicallylabeledforclockwiseandcounterclockwiserotation.Thecontrol'sopenandcloseterminalsarewiredtotheactuatordependingonthedirectionthevalverotatestoopenandcloserespectively.• ConnectthepowersourcetothePwrterminal4onthecontrol.• ConnecttheOpnterminal3totheactuatorterminalthatrotatesthevalveopen.• ConnecttheClsterminal5totheactuatorterminalthatrotatesthevalveclose.• Ifusinga24V(ac)transformer,connecttheactuatorcommontothetransformerC.• Ifusinga120Vor230V(ac)powersupply,connecttheactuatorcommontothe
powersupplyneutral(N).
Wiring the Floating Action Mixing Output---------------------------------------------------------------
Avariablespeedinjectionmixingpumprequiringupto230V(ac),2.4Aisoperatedthroughterminals3and4.Forsimplicityinwiringandtroubleshooting,aseparatebreakerforthepumpisrecommended.• Connect115or230V(ac)powerLtothePwrMixterminal4.• ConnectawirefromVarterminal3tothepumpL.• ConnectawirefromthepumpNtothepowerNeutral.• Connectthegroundwire(G)tothepump.
Wiring the Injection Mixing Pump----------------------------------------------------------------------
Manual Melt Input
Themanualmeltinputallowsthecontroltobemanuallyswitchedtomeltingoperationusingaswitch.Thisconnectionisoptional.
IftheManualMeltinputisused:Connectaswitchtoterminals13and14.Theswitchmaybeeitherdry(novoltage)oravoltagesignalupto32V(ac).
ManMelt
Com1413
2
–Mix V/mA1
+
ComCloseOpen
C NLR
Opn3
VarPwr4
MixCls5
LNG
LNG
Opn3
VarPwr4
Mix
© 2016 tekmar 670_D - 10/1611of48
Thecontrolprovideseithera4-20mAora0-10V(dc)outputtotheboiler.Polaritymustbeobserved.• ConnecttheMod+terminalfromtheboilertoterminal19.• ConnecttheMod-terminalfromtheboilertoterminal20.• Somemodulatingboilersrequireanenabletostartfiringtheboiler.Connecttheboilerenableto
thestage1terminals21and22.
The4to20mAoutputcanbeconvertedtoa0-135ΩoutputforaModutrolIV™gasvalveactuatingmotorusinga0-135ΩtekmarConverter005(soldseparately).
The4to20mAoutputcanbeconvertedtoa0-135ΩoutputforaV9055™gasvalveactuatingmotorusinga0-135ΩtekmarConverter005(soldseparately).
ModutrolIV
tekmar
BRW
+-
tekmar
V9055
+-
BRW
ModutrolIV™0-135Ω Actuating
Motor
BRW
Mod+
-
SnowMeltingControl
670
ModutrolIV™andV9055™aretrademarksofHoneywell,Inc.
Wiring to a Modulating Boiler---------------------------------------------------------------------------
ModutrolIV
tekmar
BRW
+-
tekmar
V9055
+-
BRW
BRW
V9055™0-135ΩActuatingMotor
Mod+
-
SnowMeltingControl
670
Wiring to a Single-Stage Boiler-------------------------------------------------------------------------
Asingle-stageboilerisenabledthroughtheT-Tcontacts.• ConnectStage1terminals21and22totheboilerT-Tcontacts.
Wiring to a Two-Stage Boiler---------------------------------------------------------------------------
Atwo-stageboilerisenabledthroughtheT-Tcontacts.• ConnectStage1terminals21and22totheboiler'sstage1contacts.• ConnectStage2terminals23and24totheboiler'sstage2contacts.
Stage1T T
Boiler 121
Stage 1
22
Mod EnableT T+ -
20Mod Boiler 19
Boiler 121
Stage 1–
22
+
Stage2T T
Stage1T T
Boiler 121
Stage 1Boiler 1Stage 2
22 23 24
Modutrol IV V9055
12of48© 2016 tekmar 670_D - 10/16
WR
Providea15Acircuitfortheinputpower.• Connectthe115V(ac)linewire(L)toterminal29.• Connecttheneutralwire(N)toterminal30.
N
L
Power29
L
30
N
Wiring the Input Power---------------------------------------------------------------------------------
Iftheheatrelayisoperatingapump:Thepumpcanberatedupto230V(ac),5A,1/3hpandswitchedthroughterminals25and26.Forsimplicityinwiringandtroubleshooting,aseparatebreakerforeachpumpisrecommended.• Connectthepowersourcelinewire(L)toterminal26.• Connectawirefromterminal25tothepumpL.• ConnectawirefromthepumpNbacktothepowersourceneutral.• Connectthegroundwire(G)tothepump.
Iftheheatrelayiswiredtoanelectricalcontactor:• Connectawirefromterminal25totheelectricalcontactorR.• Connectawirefromterminal26totheelectricalcontactorC.
Iftheheatrelayiswiredtoa24V(ac)on-offvalve:• Connectthepowersourceredwire(R)toterminal25.• Connectawirefromterminal26tothevalveR.• ConnectawirefromthevalveCtothepowersourcecommon.
Wiring the Heat Relay----------------------------------------------------------------------------------
Asystempumprequiringupto230V(ac),5A,1/3hpcanbeswitchedthroughterminals27and28.Forsimplicityinwiringandtroubleshooting,aseparatebreakerforeachpumpisrecommended.• Connectthepowersourcelinewire(L)toterminal28.• Connectawirefromterminal27tothepumpL.• ConnectawirefromthepumpNbacktothepowersourceneutral.• Connectthegroundwire(G)tothepump.
Wiring the System Pump-------------------------------------------------------------------------------
LNG
LNG
HeatRelay
25 26
RC
RC
HeatRelay
25 26
HeatRelay
25 26
LNG
LNG
SystemPump
2827
© 2016 tekmar 670_D - 10/1613of48
Agoodqualitytestmetercapableofmeasuringupto5,000kΩ(1kΩ=1000Ω)isrequiredtomeasurethesensorresistance.Inaddition,theactualtemperaturemustbemeasuredwitheitherahigh-qualitydigitalthermometer,orifathermometerisnotavailable,asecondsensorcanbeplacedalongsidetheonetobetestedandthereadingscompared.First,measurethetemperatureusingthethermometerandthenmeasuretheresistanceofthesensoratthecontrol.Thewiresfromthesensormustnotbeconnectedtothecontrolwhilethetestisperformed.Usingthechartbelow,estimate
thetemperaturemeasuredbythesensor.Thesensorandthermometerreadingsshouldbeclose.Ifthetestmeterreadsaveryhighresistance,theremaybeabrokenwire,apoorwiringconnectionoradefectivesensor.Iftheresistanceisverylow,thewiringmaybeshorted,theremaybemoistureinthesensororthesensormaybedefective.Totestforadefectivesensor,measuretheresistancedirectlyatthesensorlocation.Do not apply voltage to a sensor at any time as damage to the sensor may result.
Testing the Sensor Wiring
Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance°F °C °F °C °F °C °F °C-50 -46 490,813 20 -7 46,218 90 32 7,334 160 71 1,689-45 -43 405,710 25 -4 39,913 95 35 6,532 165 74 1,538-40 -40 336,606 30 -1 34,558 100 38 5,828 170 77 1,403-35 -37 280,279 35 2 29,996 105 41 5,210 175 79 1,281-30 -34 234,196 40 4 26,099 110 43 4,665 180 82 1,172-25 -32 196,358 45 7 22,763 115 46 4,184 185 85 1,073-20 -29 165,180 50 10 19,900 120 49 3,760 190 88 983-15 -26 139,403 55 13 17,436 125 52 3,383 195 91 903-10 -23 118,018 60 16 15,311 130 54 3,050 200 93 829-5 -21 100,221 65 18 13,474 135 57 2,754 205 96 7630 -18 85,362 70 21 11,883 140 60 2,490 210 99 7035 -15 72,918 75 24 10,501 145 63 2,255 215 102 64810 -12 62,465 80 27 9,299 150 66 2,045 220 104 59815 -9 53,658 85 29 8,250 155 68 1,857 225 107 553
Testing the Control WiringRemovethefrontcoverfromthecontrol.Testing the Power-------------------------------• Useanelectricalmetersettomeasure(ac)voltage.• MeasurebetweentheLandNterminals.• Thereadingshouldbe115V(ac)+/–10%.Hand Manual Override---------------------------ThecontrolincludesaHandManualOverridemenutocheckifthecontrol’srelaysareoperatingandthatthecontroliswiredcorrectlytothesnowmeltingequipment.Step1: PressSettingsbutton.Step2: PressOverridebutton.Step3: PressManualOverride.Step4: SelectManualOverridetoHand.Step5: PressBackbutton.Step6: Thefollowingoutputscanbeoperated:• SystemPumprelay• HeatRelay• BoilerStage1relay• BoilerStage2relay• BoilerModulation0-10V(dc)or4-20mAsignal• MixSystemOutput0-10V(dc)or4-20mAsignal• MixSystemOutputfloatingactionrelays• MixSystemOutputvariable-speedinjectionpump
For each relay output• Useanelectricalmetersettomeasure(ac)voltage.• Measurebetweentherelaywiringterminals.• Whentherelayisoff,thevoltageshouldbe115V(ac).• Whentherelayison,thevoltageshouldbe0V(ac).For the Boiler Modulation• UseanelectricalmetersettomeasureV(dc)ormA.• SettheBoilerModulationto100%.• Thevoltagebetweenthe+and–wiringterminalsshouldbe
10V(dc)or20mA.• SettheBoilerModulationto0%.• Thevoltagebetweenthe+and–wiringterminalsshouldbe
0V(dc)or4mA.For the Mix System Output – Floating Action• Useanelectricalmetersettomeasure(ac)voltage.• SettheMixOutputto100%.Thefloatingactionopenwiring
terminalwillbeclosedforthelengthofthemotorspeedset-ting(defaultis105seconds).
• Whenopening,thevoltagebetweentheopenandcommonwiringterminalsshouldbe24V(ac)or115V(ac).
• Whenopening,thevoltagebetweenthecloseandcommonwiringterminalsshouldbe0V(ac).
• SettheMixOutputto0%.Thefloatingactionclosedwiringterminalwillbeclosedforthelengthofthemotorspeedset-ting(defaultis105seconds).
• Whenclosing,thevoltagebetweentheopenandcommonwiringterminalsshouldbe0V(ac).
• Whenclosing,thevoltagebetweenthecloseandcommonwiringterminalsshouldbe24V(ac)or115V(ac).
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Manual Override – Maximum HeatInhydronicapplicationmodes,thecontrolincludesaMaximumHeatoperationwherethecontroloperatesthesnowmeltingsystemtomaintainthemaximumallowedheatingsetpoints.Thisallowstestingofthesnowmeltingsystemduringwarmweather.
Step1: PressSettingsbutton.Step2: PressOverridebutton.Step3: PressManualOverride.Step4: SelectManualOverridetoMaxHeat.Step5: PressBackbutton.ThecontrolstartstheMaxHeat
operation.Step6: ExittheManualOverridebyselectingAuto.
Whenoperatingahydronicsnowmeltingsystem,itisnecessarytopurgeandbleedallairoutofthesystem.ThecontrolincludesaPurgeoperationwherethesystem,primaryandboilerpumpsareallturnedontoassistinpurgingairfromthesystem.
Step1: PressSettingsbutton.Step2: PressOverridebutton.Step3: PressManualOverride.Step4: SelectManualOverridetoPurge.Step5: PressBackbutton.ThecontrolstartsthePurge
operation.Step6: ExittheManualOverridebyselectingAuto.
Manual Override – Purge
ThesnowmeltingsystemcanbemanuallyturnedoffandthecontrolremainsoffuntilmanuallychangedbacktoAuto.Thisallowstheinstallerorendusertopermanentlydisablethesnowmeltingsystemwithoutremovingpowerfromthecontrol.
Step1: PressSettingsbutton.Step2: PressOverridebutton.Step3: PressManualOverride.Step4: SelectManualOverridetoOff.Step5: PressBackbutton.Thecontrolisnowintheoffmanual
override.Step6: ExittheManualOverridebyselectingAuto.
Manual Override – Off
Whenoperatinganelectricsnowmeltingsystem,thecontrolincludesaTestoperationwheretheelectricalheatingcablescanbeenergizedfor10minutes,afterwhichthecontrolresumesnormaloperation.Thisallowstestingoftheelectricsnowmeltingsystemduringwarmweather.
Step1: PressSettingsbutton.Step2: PressOverridebutton.Step3: PressManualOverride.Step4: SelectManualOverridetoTest.Step5: PressBackbutton.Thecontrolstartstheelectric
testoperationforupto10minutesbeforeexitingautomatically.
Step6: ExittheManualOverridebyselectingAuto.
Manual Override – Test
For the Mix Output – Analog Mixing• UseanelectricalmetersettomeasureV(dc)ormA.• SettheMixOutputto100%.• Thevoltagebetweenthe+and–wiringterminalsshouldbe
10V(dc)or20mA.• SettheMixOutputto0%.• Thevoltagebetweenthe+and–wiringterminalsshouldbe
0V(dc)or4mA.For the Mix Output – Variable Speed Injection Mixing• UseanelectricalmetersettomeasureV(ac).• SettheMixOutputto100%.
• ThevoltagebetweentheVarandNwiringterminalsshouldbe115V(ac).
• SettheMixOutputto0%.• ThevoltagebetweentheVarandNwiringterminalsshould
be0V(ac).Exiting the Hand Manual Override---------------• ExittheManualOverridebyselectingAuto.• Installthefrontcover.
Access LevelsThecontrolisshippedpre-programmedwithcommonsettings.Thecontrolhasan“Installer”accesslevelthatallowsfullaccesstoallsettingsanda“User”accesslevelthatrestrictsthenumberofsettingsavailable.Thecontroldefaultstothe“User”accesslevelafter12hoursofoperation.
Tochangetothe“Installer”accesslevel:• Step1:PresstheSettingsbutton.• Step2:PresstheToolboxbutton.• Step3:PressAccessLevel.• Step4:PresstheInstallerradiobutton.
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Home Screen
User Interface
System Operation
Viewstatusofsensorreadingsandequipment.
Remainingmeltingruntime
Systemoperationinformation
Gotosettingsmenutosetupcontrol
Informationaboutslabandoutdoorconditions
SYSTEM IS MELTING• Thecontrolhaseitherdetectedsnow/iceandautomaticallystartedorthecontrolwasmanually
started.• "WarmingUp"isshownwhentheslabisbelowtheslabtargettemperature.
SYSTEM IS OFF• Thesnowmeltingsystemisoffandisreadytodetectsnoworice.• "WarmWeatherShutDown"isshownwhentheslabandoutdoortemperatureareabovethe
WWSDsetting.DuringWWSD,thesnowwillmeltnaturallyduetowarmoutdoortemperatures.• "ColdWeatherShutDown"isshownwhentheoutdoortemperatureisbelowtheCWCOsetpoint.
Theoutdoortemperatureissocoldtheheatingsystemdoesnothavecapacitytomeltsnow.• "MeltPending"isshownwhenthesystemisoffduringCWCObutwillresumemeltingoncethe
outdoortemperatureincreasesabovetheCWCOsetpoint.
SYSTEM IS IDLING• Thecontrolispre-heatingtheslabtotheidlingsetpoint.Thisreducestheamountoftimeneeded
toreachthemeltingsetpointintheeventsnoworiceisdetected.
STORM PREDICTED• TheInternetweatherforecastispredictingasnowfallandthecontrolispre-heatingtheslabto
thestormsetpoint.Thisreducestheamountoftimeneededtoreachthemeltingsetpointintheeventsnoworiceisdetected.
SYSTEM IN OVERRIDE / SYSTEM IN EXERCISING• Thecontrolisinamanualoverridefortesting,commissioningorexercising.• Thedescriptionfieldexplainswhichtypeofoverrideisactive.
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Symbols
!WARNING SYMBOLThecontrolhasaerrormessage.Pressthewarningsymboltodeterminetheerrorcodeandinformationonhowtotakecorrectiveaction.RefertotheTroubleshootingsectionforalistoferrorcodes.
Help Screen
ThedisplayincludesaHelpscreenforeachsetting.TheHelpscreenprovidesadescriptionofthesettingthatisidenticaltothedescriptionfoundintheInstallationandOperationManual.
Status Menu NavigationStep1:PresstheStatusbuttonontheHomeScreen.Step2:PresseithertheSystem,SlaborWeatherbutton.Step3:Pressupordownbuttonstoscrollthroughthelist.
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System Status MenuDescription Range Access
MANUAL MELT INPUTWhenManualMeltwiringterminal13isshortedtocommonwiringterminal14,thecontrolisenabledandentersthemeltingoperationunlesspreventedbywarmweathershutdownorcoldweathercutout.Whenthemanualmeltinputisdisconnected,thecontrolcompletesthemeltingcycleandthenreturnstooff,idleorstormoperation.Conditions:Always
Off,Enabled UserInstaller
TEKMARNETWhentekmarNetcommunicationispresent,thestatusshowsactive.WhenthereisnotekmarNetcommunication,thestatusisoff.Conditions:Always
Off,Active UserInstaller
BOILER TARGETTheboilertargetcalculatedbythecontrolbasedonoutdoortemperature,slabtemperatureandthemelting,idling,orstormsetpoints.“---”isdisplayedwhennoheatisrequired.Conditions:ApplicationmodeissettoBoilerorBoiler+Mix.
–––,50to230°F
(10.0to110.0°C)
UserInstaller
BOILER SUPPLYCurrentboilersupplywatertemperature.Conditions:ApplicationmodeissettoBoilerorBoiler+Mix.
-31to266°F(-35.0to130.0°C) Installer
BOILER OUTPUTCurrentboilerplantpercentoutput.Conditions:ApplicationmodeissettoBoilerorBoiler+Mix.
0to100% UserInstaller
STAGE 1Currentstatusofthestage1relay.Conditions:ApplicationmodeissettoPWMZone,Mixing,Boiler,orBoiler+Mix.
OnorOff UserInstaller
STAGE 2Currentstatusofthestage2relay.Conditions:BoilertypeissettoStage2.
OnorOff UserInstaller
MIX TARGETThemixtargetcalculatedbythecontrolbasedonoutdoortemperature,slabtemperatureandoneofeitherthemelting,idling,orstormsetpoints.”---”isdisplayedwhennoheatisrequired.Conditions:ApplicationmodeissettoMixingorBoiler+Mix.
–––,70to200°F
(21.0to93.5°C)
UserInstaller
MIX SUPPLYCurrentmixsupplywatertemperature.Conditions:ApplicationmodeisnotsettoElectric.
-31to266°F(-35.0to130.0°C)
UserInstaller
MIX OUTPUTCurrentpositionofthemixingvalveoroutputofthevariablespeedinjectionpump.Conditions:ApplicationmodeissettoMixingorBoiler+Mix.
0to100% UserInstaller
SYSTEM PUMPCurrentstatusofthesystemlooppump.Conditions:ApplicationmodeissettoPWMZone,MixingorBoiler+Mix.
OnorOff UserInstaller
HEAT RELAYCurrentstatusoftheheatrelay.Conditions:ApplicationmodeissettoPWMZone,Boiler,MixingorBoiler+Mix.
OnorOff UserInstaller
ELECTRIC ENABLE RELAYCurrentstatusoftheelectricsnowmeltenablerelay.Conditions:ApplicationmodeissettoElectric.
OnorOff UserInstaller
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Slab Status Screen
Weather Status Screen
Description Range Access
OUTDOORCurrentoutdoorairtemperatureasmeasuredbytheoutdoorsensororfromthetekmarNetsystemorInternetweatherforecast.“–––”isdisplayedwhennooutdoortemperaturereadingisavailable.Conditions:Alwaysavailable.
–––,-67to149°F
(-55.0to65.0°C)
UserInstaller
SLAB TARGETTheslabtargetcalculatedbythecontrolbasedonoutdoortemperatureandthemelting,idling,orstormsetpoints.“---”isdisplayedwhennoheatisrequired.Conditions:Alwaysavailable.
–––,32to110°F
(0to43.0°C)Installer
SLAB SENSORCurrentslabsensortemperature.Conditions:Snow/icesensorsettoIn-slaborslabsensorissettoOn.
-58to167°F(-50.0to75.0°C)
UserInstaller
SENSOR WATER STATUSCurrentstatusofsnow/icesensormoisturedetector.Conditions:Snow/icesensorissettoIn-slaborAerial.
DRYorWET UserInstaller
Currentoutdoorconditions
Predictedsnowforecast
WhenWiFiisturnedon,thecontrolreceivesweatherdatafromtheInternet.Thecurrentweather,outdoortemperatureandforecastsnowfallinformationisdisplayed.
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Settings Menu Navigation
Step1:PresstheSettingsbuttonontheHomeScreen.Step2:Pressoneofthetenbuttons.Step3:Pressupordownbuttonstoscrollthroughthelist.Step4:Pressthehighlightedsettingnametochangethesettingvalue.
• ®
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Description Range Access
MELTING SETPOINTSelectthedesiredtemperatureofthesnowmeltsurfacewhenmelting.Conditions:Alwaysavailable.
32to95°F(0.0to35.0°C)Default=36°F
(2.0°C)
UserInstaller
IDLING SETPOINTSelectthedesiredtemperatureofthesnowmeltsurfacewhenidling.Idlingpreheatstheslabwhentheslabisdrybutcoldandallowsfasterreactiontimetoreachthemeltingtemperaturewhensnowisdetected.Recommendedforcommercialuseonly.Conditions:Alwaysavailable.
OFF,20to95°F(-6.5to35.0°C)
Default=Off
UserInstaller
STORM SETPOINTSelectthedesiredtemperatureofthesnowmeltsurfacewhileoperatinginthestormoperation.Stormoperationtemporarilypreheatstheslabtoallowfasterreactiontimetoreachthemeltingtemperaturewhensnowisdetected.StormoperationisautomaticallyactivatedbytheInternetweatherforecastormanuallystartedbyaUserSwitchorGateway.Conditions:Alwaysavailable.
OFF,20to95°F(-6.5to35.0°C)
Default=Off
UserInstaller
MANUAL MELT TIMESelecttheamountofrunningtimewhenmanuallystartingthesystem.Conditions:Alwaysavailable.
0:30to24:00hours
Default=4:00hours
UserInstaller
ADD MELT TIMESelecttheamountofadditionalmeltingtimeaftertheSnow/IceSensorisdry.Thisallowslowspotsontheslabtofullydrybeforethesnowmeltingsystemisshutoff.Conditions:Snow/icesensorissettoIn-slaborAerial
0:00to6:00hours
Default=0:00hours
Installer
STORM RUN TIMESelecttheamountofstormruntimetopre-heattheslabwhenadvisedofawinterstormwarning.Conditions:Stormsetpointissettoatemperature.
0:30to24:00hours
Default=8:00hours
Installer
SENSITIVITYSelecthowsensitiveSnow/IceSensoristowaterdetection.Conditions:Snow/icesensorissettoIn-slaborAerial.
Auto,Min,-2,-1,Mid,+1,+2,MaxDefault=Auto
Installer
WWSDSelectthetemperatureabovewhichthesnowmeltingsystemisshutoffduringwarmweather.Thisallowsthesnoworicetomeltofftheslabnaturally.Conditions:Alwaysavailable.
Auto,32to95°F(0.0to35.0°C)Default=Auto
Installer
CWCOSelectthetemperaturebelowwhichthesnowmeltingsystemisshutoffduringextremelycoldweather.Belowthistemperature,theheatlossoftheslabexceedsthecapacityoftheboilerorheatingappliance.Conditions:Alwaysavailable.
Off,-30to50°F(-34.5to10.0°C)Default=10°F
(-12.0°C)
Installer
Temp Menu
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Away Menu
Display Menu
Description Range Access
TEMPERATURE UNITSSelectFahrenheitorCelsiustemperatureunits.Conditions:Alwaysavailable.
°For°C UserInstaller
SCREEN BRIGHTNESSSelectthescreenbrightness.Conditions:Alwaysavailable.
0to100%Default=75%
UserInstaller
CLEAN SCREENTheCleanScreentimerlocksthescreenfor10secondsallowingtheusertowipethescreenwithamoistcloth.Donotusesolventstocleanthescreen.Conditions:Alwaysavailable.
N/A UserInstaller
AwaySelectawaytopreventsnowmeltingoperationandsaveenergy.
At HomeSelectathometoallowauto-maticsnowmeltingoperation.
Thehome/awaychangesdevicessystem-wide.AllthermostatsandcontrolsthataregroupedtogetherasalocationonthetekmarConnectmobileappwillchangetogether.AllthermostatsandcontrolsonatekmarNetsystemwillalsochangetogether.
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WiFi Menu
Time Menu
Description Range Access
WIFIEnableordisableWiFiconnectivity.Thehelpscreendisplaysthefollowinginformation:• IPAddress• SubnetMask• GatewayIP• MACAddressConditions:Alwaysavailable.
OfforOn UserInstaller
NETWORK SSIDSelecttheWiFinetworkfromthelist.Conditions:WiFiissettoOn.
ListofWiFiNetworks
UserInstaller
ZIP/POSTAL CODEEnteraUSZIPorCanadianpostalcode.TheZIP/PostalCodeisusedtoprovidethelocationfortheweatherinformation.TheweatherserviceisavailableintheUSAandCanadaonly.Conditions:WiFiissettoOn.
USZIPformat12345
CanadaPostalCodeformat
A1B2C3
UserInstaller
TIME SOURCESelecttosettothetimeautomaticallyormanually.Conditions:WiFiissettoOn.
Auto,Manual
UserInstaller
Description Range Access
TIME SOURCESelecttosettothetimeautomaticallyormanually.AutoisonlyavailablewhenWiFiissettoOn.Conditions:Alwaysavailable.
Auto,Manual
UserInstaller
SET TIME AND DATEConditions:Alwaysavailable.
N/A UserInstaller
TIME FORMATSelecteither12or24hourformat.Conditions:Alwaysavailable.
12hr,24hr
Default=12hr
UserInstaller
TIME ZONESelectthelocation'stimezone.Conditions:AvailablewhenTimeSourceissettoManual.
Hawaii,Alaska,Pacific,Mountain,Central,Eastern,
Atlantic,NFLD,
(Newfoundland)
UserInstaller
DAYLIGHT SAVINGSSetDaylightSavingstoOntoautomaticallyadjustfortimechangesinthespringandfall.Conditions:Alwaysavailable.
OfforOnDefault=On
UserInstaller
BeforeusingtheWiFifeaturesofthisproduct,youmustaccepttheTermsofUse,asamendedfromtimetotimeandavailableatWattsWater.com/Terms-of-Use.Ifyoudonotaccepttheseterms,thisproductcanstillbeusedwithoutWiFifeatures.
• Pressboxfield.• Thenadjustwitharrowbuttons.
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Energy Menu
Viewthesnowmeltingsystemrunninghoursinthepastweek.
Viewthesnowmeltingsystemrunninghoursinthepastyear.
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Monitor MenuDescription Range Access
MELTING ENERGYRecordstheamountofenergysincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeissettoElectric.
0to999999kWh UserInstaller
MELTING HOURSRecordsthenumberofmeltinghourssincethecounterwaslastreset.Conditions:Alwaysavailable.
0to999999hours
UserInstaller
HEAT HOURSRecordsthenumberofhourstheboilerfiredortheelectriccableheatedsincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeisBoiler,Boiler+MixandElectric.
0to999999hours
UserInstaller
HEAT CYCLESRecordsthenumberofcyclestheboilerturnedonortheelectriccableheatedsincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeisBoiler,Boiler+MixandElectric.
0to999999cycles Installer
SYSTEM PUMPRecordsthenumberofhoursthesystempumphasoperatedsincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeisnotsettoElectric.
0to999999hours Installer
SLAB SENSOR HIGHRecordsthehighestmeasuredslabtemperaturesincethecounterwaslastreset.Conditions:AvailablewhenSnow/IceSensorissettoIn-slaborSlabSensor=On.
-58to167°F(-50.0to75.0°C) Installer
SLAB SENSOR LOWRecordsthelowestmeasuredslabtemperaturesincethecounterwaslastreset.Conditions:AvailablewhenSnow/IceSensorissettoIn-slaborSlabSensor=On.
-58to167°F(-50.0to75.0°C) Installer
OUTDOOR HIGHRecordsthehighestmeasuredoutdoorairtemperaturesincethecounterwaslastreset.Conditions:Alwaysavailable.
-67to149°F(-55.0to65.0°C) Installer
OUTDOOR LOWRecordsthelowestmeasuredoutdoorairtemperaturesincethecounterwaslastreset.Conditions:Alwaysavailable.
-67to149°F(-55.0to65.0°C) Installer
BOILER HIGHRecordsthehighestmeasuredboilertemperaturesincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeissettoBoilerorBoiler+Mix.
-31to266°F(-35.0to130.0°C) Installer
BOILER LOWRecordsthelowestmeasuredboilertemperaturesincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeissettoBoilerorBoiler+Mix.
-31to266°F(-35.0to130.0°C) Installer
MIX SUPPLY HIGHRecordsthehighestmeasuredmixtemperaturesincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeissettoPWMZone,MixingorBoiler+Mix.
-31to266°F(-35.0to130.0°C) Installer
MIX SUPPLY LOWRecordsthelowestmeasuredmixtemperaturesincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeissettoPWMZone,MixingorBoiler+Mix.
-31to266°F(-35.0to130.0°C) Installer
RESET ALL?Resetsallthecountersinthemonitormenuatonce.Conditions:Alwaysavailable.
N/A Installer
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Setup – System Setup MenuDescription Range Access
APPLICATION MODETheApplicationModeselectstheoperationofthemechanicalequipment.ApplicationMode“PWMZone”operatesapumporzonevalvetoprovideheattothesnowmeltingsystem.
ApplicationMode“Mixing”operatesamixingvalveoravariablespeedinjectionmixingpumptoheatthesnowmeltingsystem.Theheatsourceisenabled.
ApplicationMode“Boiler”operatesamodulating,1-stageor2-stageboilertoheatthesnowmeltingsystem.
ApplicationMode“Boiler+Mix"operatesamixingvalveoravariablespeedinjectionmixingpumpandcontrolstheboilertemperaturetoheatthesnowmeltingsystem.
ApplicationMode“Electric”useselectriccablestoheatthesnowmeltingsystem.Conditions:Alwaysavailable.
PWMZoneMixingBoiler
Boiler+MixElectric
Default=Boiler+Mix
Installer
SNOW/ICE SENSORSelectifaSnow/IceSensor090or094"Inslab",oraSnowSensor095"Aerial"isinstalled.Conditions:Alwaysavailable.
None,In-slab,Aerial
Default=In-slabInstaller
SLAB SENSORSelectifaSlabSensor072or073isinstalled.Conditions:Availablewhensnow/icesensorissettoNoneorAerial.
OfforOnDefault=Off Installer
SLAB PROTECTIONSelectifaconcreteslabshouldbeprotectedfromlargetemperaturedifferentialstoavoidcrackingtheconcreteduetohightensilestress.Thislimitstheheat-uprateoftheconcreteslab.Slabprotectionisnotrequiredforinstallationswithbrickpavers,asphaltorothernon-concretematerials.Conditions:Availablewhen1)ApplicationmodeissettoMixing,BoilerorBoiler+Mix,2)Snow/icesensorissettoInslaborslabsensorissettoOn.
OfforOnDefault=On Installer
ECONOMELTEconoMeltallowstheusertomechanicallyremovesnowthenmanuallystartthesystemtomelttheremainingthinsnowlayeroricewithanautomaticstopwhenthesensorisdry.Conditions:Availablewhensnow/icesensorissettoIn-slab.
OfforOnDefault=Off Installer
MAX MELT DAYSLimittheamountofmeltingruntimeaftersnowisautomaticallydetectedbyaSnow/IceSensor090or094,oraSnowSensor095.Conditions:Alwaysavailable.
Off,0.5to7daysDefault=3days Installer
OUTDOOR SENSORSelectiftheoutdoorairtemperatureismeasuredbythecontrol,byatekmarNetsystemorbytheInternetweatherservice.Conditions:Alwaysavailable.
Control,tekmarNet,
InternetDefault=Control
Installer
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Setup – Boiler Setup Menu
Description Range Access
BOILER TYPESelectthetypeofboileroperatedbythecontrol.Mod=Modulatingboilerwithanadjustablefiringrateusinga0-10V(dc)or4-20mAsignal.1Stage=Singleone-stageon/offboiler.2Stage=Singletwo-stageon/offboiler.EMS=Modulatingboilerwithanadjustabletargettemperatureusinga0-10V(dc)or4-20mAsignal.Enable=EnableforApplicationModePWMZoneorMix.Control=CallforheattotekmarNetcontrol.Conditions:Alwaysavailable.
Mod,1Stage,2Stage,
EMS,Enable,Control
Default=Mod
Installer
BOILER MODULATION TYPESelectbetweena0-10V(dc)or4-20mAsignaltocontrolthemodulatingboiler.Conditions:Availablewhen1)ApplicationModeissettoBoilerorBoiler+Mix,and2)BoilerTypeissettoModorEMS.
0-10Vor
4-20mADefault:0-10V
Installer
BOILER MIN MODULATIONSettheboilerminimummodulationoftheboilerburner.Conditions:Availablewhen1)ApplicationModeissettoBoilerorBoiler+Mix,and2)BoilerTypeissettoMod.
0to50%Default=0% Installer
BOILER MODULATION DELAYSetthetimetheboileroperatesattheminimumfiringratebeforeallowingthefiringratetochange.Thisallowstheboilerignitionsystemtoestablishaflame.Conditions:Availablewhen1)ApplicationModeissettoBoilerorBoiler+Mix,and2)BoilerTypeissettoMod.
Off,10to180seconds
Default=OffInstaller
BOILER MOTOR SPEEDSetthetimerequiredforthemodulatingburneractuatingmotortofullyopenthegasvalveorramptheburnerfanspeedfromofftofullspeed.Setto30secondsunlessotherwiserecommendedbytheboilermanufacturer.Conditions:Availablewhen1)ApplicationModeissettoBoilerorBoiler+Mix,and2)BoilerTypeissettoMod.
30to230seconds
Default=30Installer
BOILER DIFFERENTIALThetemperaturedifferentialthatthecontrolusestocycletheboileronandoff.Thedifferentialissplitevenlyhalfaboveandhalfbelowoftheboilertarget.Conditions:AvailablewhenApplicationModeissettoBoilerorBoiler+Mix.
Auto,2to42°F(1.0to23.5°C)Default=Auto
Installer
BOILER MINIMUMWhenApplicationModeissettoMixingorBoiler+Mix:Theboilerreturnminimumprotectsbothcondensingandnon-condensingboilersfromcoldreturnwatertemperatures.Themixingvalveisclosedorthevariablespeedinjectionmixingisreducedwhentheboilerreturntemperaturefallsbelowthissetting.WhenApplicationModeissettoBoiler:Theminimumallowedboilertargettemperature.Checktheboilermanufacturer’smanualforrecommendedreturnwatertemperatures.
Off,50to180°F(10.0to82.0°C)
Default=OffInstaller
EMS SIGNAL MINIMUMThestartingvoltagefortheEMSboilersignal.ThisvoltagecorrespondstotheEMSLowTemperaturesetting.Checktheboilermanufacturer’smanualforthestartingvoltagefortheEMSsignalrange.Conditions:Availablewhen1)BoilerTypeissettoEMS,and2)BoilerModulationTypeissetto0-10V.
0.5to10VdcDefault=0.5Vdc Installer
EMS LOW TEMPERATURETheEMSboilertargettemperaturethatcorrespondstotheEMSSignalMinimumvoltageor4mA.Checktheboilermanufacturer’smanualfortheminimumEMStargettemperature.Conditions:AvailablewhenBoilerTypeissettoEMS.
50to210°F(10to99.0°C)Default=50°F
(10.0°C)
Installer
EMS HIGH TEMPERATURETheEMSboilertargettemperaturethatcorrespondsto10V(dc)or20mA.Checktheboilermanufacturer’smanualforthemaximumEMStargettemperature.Conditions:AvailablewhenBoilerTypeissettoEMS.
50to210°F(10.0to99.0°C)Default=210°F
(99.0°C)
Installer
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Setup – Mixing Setup Menu
Description Range Access
MIXING TYPESelectthemixingoutputtype.Floating=Floatingactionmixingoutputtooperateamixingvalve.Injection=Injectionmixingoutputtooperateawet-rotor,impedanceprotectedpumpwithacurrentlessthan2.4A.0-10V=Analogmixingoutputprovidesa0-10V(dc)signal.4-20mA=Analogmixingoutputprovidesa4-20mAsignal.Conditions:AvailablewhenApplicationModeissettoMixingorBoiler+Mix.
Floating,Injection,0-10V,
4-20mADefault=Floating
Installer
MIX MOTOR SPEEDSetthetimethatthemixingactuatingmotorrequirestooperatefromfullyclosedtofullyopen.Checkthemixingactuatormotorinstructionmanualforthemotorspeedtime.Conditions:Availablewhen1)ApplicationModeissettoMixingorBoiler+Mix,and2)MixingTypeissettoFloating,0-10V,or4-20mA.
30to230seconds
Default=105seconds
Installer
MIX MAXIMUMSetthemaximumoperatingtemperatureofthesystemsupplywatertemperature.Conditions:AvailablewhenApplicationModeissettoMixingorBoiler+Mix.
80to180°F,Off(26.5to82.5°C)Default=140°F
(60.0°C)
Installer
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tekmarNet Menu
Description Range Access
ADDRESSINGThetekmarNetaddressofthiscontrol.Selectbetweenautomaticandmanualaddressing.Tomanuallysettheaddress,usetheupordownbuttons.Conditions:Availablewhenthe670isconnectedtoothercontrolsusingtekmarNetcommunication.
Auto,b:01tob:24,1:01to1:24,2:01to2:24,3:01to3:24
Installer
DEVICE COUNTProvidesacountofallthetekmarNetthermostats,setpointcontrolsandsnowmeltingcontrolsonatN4bus.Conditions:Availablewhenthe670isconnectedtoothercontrolsusingtekmarNetcommunication.
1to24 Installer
SNOW MELT ZONESelectthesnowmeltingzonethatthiscontroloperates.Snowzone1hasthehighestprioritywhilesnowzone12hasthelowestpriority.Conditions:Availablewhenthe670isconnectedtoothercontrolsusingtekmarNetcommunication.
1to12 Installer
TRACK ZONESelecttotrackandrecordtherunninghoursofsnowzone1andrepeatthisruntimeonthiscontrol.Thisallowssnowmeltingzoneswithoutasnow/icesensortoautomaticallystart.Conditions:Availablewhen1)The670isconnectedtoothercontrolsusingtekmarNetcommunicationand2)Snowzoneissetto2through12.
OfforOn Installer
MELT GROUPAUserSwitchorGatewaymaybeusedtomanuallystartmeltingthezone.SettheMeltGroupnumbertothecorrespondingSetpointEnablenumberontheUserSwitchorGateway.Conditions:Availablewhenthe670isconnectedtoothercontrolsusingtekmarNetcommunication.
1to12 Installer
STORM GROUPAUserSwitchorGatewaymaybeusedtomanuallystartthestormoperationforthezone.SettheStormGroupnumbertothecorrespondingSetpointEnablenumberontheUserSwitchorGateway.Conditions:Availablewhenthe670isconnectedtoothercontrolsusingtekmarNetcommunication.
1to12 Installer
PRIORITYSelectthepriorityofthesnowmeltingsystem.Conditions:Availablewhen1)The670isconnectedtoothercontrolsusingtekmarNetcommunicationand2)ApplicationModeissettoPWMMode,MixorElectric.
Off,Conditional,Full
Default=OffInstaller
AWAY SCENE SelectifthecontrolshouldacceptorignoretheawaycommandfromthemobileapporfromatekmarNetsystem.Conditions:Alwaysavailable.
OfforOnDefault=On Installer
TN4 SYSTEM PUMP SelectifthesystempumplocatedonthetekmarNetSystemControlshouldoperatewhenthesnowmeltzoneisheating.Conditions:Availablewhenthe670isconnectedtoothercontrolsusingtekmarNetcommunication.
OfforOn Installer
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Toolbox Menu
Description Range Access
ERROR CODEThecurrenterrorcodeisdisplayed.Conditions:Alwaysavailable.
SeeErrorCodeSection
UserInstaller
ACCESS LEVELSelecttheaccesslevelofthecontrol.Thisdetermineswhichmenusanditemsareavailablethroughtheuserinterface.Conditions:Alwaysavailable.
UserorInstallerDefault=Installer
UserInstaller
TYPE 670Productinformation.SW:J1254ASVN:XXXConditions:Alwaysavailable.
J1254ALastletterindicates
softwareversion
UserInstaller
LOAD DEFAULTSSelect“Yes”toreloadthefactorydefaultsonthecontrol.Conditions:Alwaysavailable.
NoorYes UserInstaller
CALIBRATE TOUCHSCREENAsequenceofstepstocalibratethetouchscreen.Conditions:Alwaysavailable.
N/A UserInstaller
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Override MenuDescription Range Access
MANUAL OVERRIDEManuallyoverridethenormalautomaticoperationofthecontroltotesttheequipmentoroperatethesystematthemaximumtemperaturelimits.Auto=Normaloperation.Hand=Manualoverrideofeachrelayoutput.MaxHeat=Operatehydronicsystematmaximumheat.Test=Operateelectricsystemfor10minutes.Purge=Hydronicsystempurgeoperatespumpstohelpbleedairfromthesystem.Conditions:Alwaysavailable.
Auto,Hand,
MaxHeat,Test,
Purge,Off
UserInstaller
SYSTEM PUMPManuallyturnonthesystempumpduringtheHANDManualOverride.Conditions:Availablewhen1)ApplicationModeissettoPWMZone,Boiler,MixingorBoiler+Mix,and2)ManualOverrideissettoHand.
OfforOnDefault=Off
UserInstaller
HEAT RELAYManuallyturnontheheatrelayduringtheHANDManualOverride.Conditions:Availablewhen1)ApplicationModeissettoPWMZone,MixorElectricand2)ManualOverrideissettoHand.
OfforOn UserInstaller
BOILER ENABLEManuallyturnontheboilerduringtheHANDManualOverride.Conditions:Availablewhen1)ApplicationModeissettoPWMZoneorMixand2)ManualOverrideissettoHand.
OfforOnDefault=Off
UserInstaller
BOILER MODULATIONManuallysetthemodulatingboilerfiringrateduringtheHANDManualOverride.Conditions:Availablewhen1)ApplicationModeissettoBoilerorBoiler+Mix,2)ManualOverrideissettoHand,and3)BoilerTypeissettoMod.
0to100%Default=0%
UserInstaller
BOILER STAGE 1Manuallyturnontheboilerstage1duringtheHANDManualOverride.Conditions:Availablewhen1)ApplicationModeissettoBoiler,Boiler+Mixand2)ManualOverrideissettoHand.
OfforOnDefault=Off
UserInstaller
BOILER STAGE 2Manuallyturnontheboilerstage2duringtheHANDManualOverride.Conditions:Availablewhen1)ApplicationModeissettoBoilerorBoiler+Mix,2)ManualOverrideissettoHand,and3)BoilerTypeissettoStage2.
OfforOnDefault=Off
UserInstaller
BOILER EMSManuallysetthemodulatingboilerfiringrateduringtheHANDManualOverride.Conditions:Availablewhen1)ApplicationModeissettoBoilerorBoiler+Mix,2)ManualOverrideissettoHand,and3)BoilerTypeissettoEMS.
Off,50to210°F(10to99.0°C)Default=Off
UserInstaller
MIX OUTPUTManuallysetthemixingvalveorinjectionmixingpumpoutputduringtheHANDManualOverride.Conditions:Availablewhen1)ApplicationModeissettoMixingorBoiler+Mix,and2)ManualOverrideissettoHand.
0to100%Default=0%
UserInstaller
HAND DURATIONSelecttheamountoftimethattheHANDOverrideisineffectbeforereturningtoAutomaticoperation.Conditions:AvailablewhenManualOverrideissettoHand.
0:10to72:00hours
Default=0:10hour
UserInstaller
MAX HEAT DURATIONSelecttheamountoftimethatMaxHeatisineffectbeforereturningtoAutomaticoperation.Conditions:Availablewhen1)ApplicationModeissettoPWMZone,Boiler,MixingorBoiler+Mix,and2)ManualOverrideissettoMaxHeat.
0:10to72:00hours
Default=24:00hour
UserInstaller
PURGE DURATIONSelecttheamountoftimethatthePurgeisineffectbeforereturningtoAutomaticoperation.Conditions:Availablewhen1)ApplicationModeissettoPWMZone,Boiler,MixingorBoiler+Mix,and2)ManualOverrideissettoPurge.
0:10to72:00hours
Default=24:00hour
UserInstaller
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tekmar Connect Mobile & Web App
BeforeusingtheWiFifeaturesofthisproduct,youmustaccepttheTermsofUse,asamendedfromtimetotimeandavailableatWattsWater.com/Terms-of-Use.Ifyoudonotaccepttheseterms,thisproductcanstillbeusedwithoutWiFifeatures.
Step 1• Createanewaccount.• Thenloginusing
yourusernameandpassword.
Step 2ClickAddaDevice
Step 3Onthe670,press:• Settings• WiFi• RegisterDevice
Step 4• Enterthe8digit
registrationnumberfromthe670.
• Enterthedevice'sname.
• Theappsupportsmultiplesitelocations.Enterthelocationforthe670.
The670isnowlistedontheMyDevicespage.
TheWiFiSnowMeltingControlcanberemotelyviewedandadjustedremotelyfromthetekmarConnectapp.• DownloadthetekmarConnectmobileappfromtheiTunes®AppStore®
orfromtheGooglePlayTMStore.• AlternativelygotothetekmarConnect.comwebsite.
Add Control to App
ThecontrolusesthefollowingoutboundportstoconnecttotheInternet:HTTPport80,SNTPport123,TLSport443,MQTTport883Networksblockingoutboundportswillneedtoallowopentheseportsbaseduponthecontrol'sMACaddress.
REGISTRATIONTo finish registering your snow melt control, enter the code displayed below at tekmarConnect.com
87180139
Back
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MyDevicesListsallthedevicesatalocation
Home/Away• Togglesalocationbetween
homeandaway.• Selectingawaysavesenergy
bypermanentlyshuttingoffthesnowmeltsystem.
• Thermostatsoperateatenergysavingtemperatures.
DeviceNameTakesyoutotheadjustmentpageforthedevice.
LocationsChangetodifferentlocations.
AddMoreLocations
AddMoreDevices
AccountTakesyoutotheaccountpage.
555-555-5555
YourName
Edityouraccountdetails:• Firstandlastname• Emailaddress• Phonenumber
Changethetemperatureunits.
Logoutoftheapp
Account
My Devices
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Providescontrolstatus:• SystemisOff• SystemisMelting• StormPredicted• SystemisIdling• SysteminOverride
Viewruntimeenergyusage
Togglebetweendailyandmonthlyenergyusageviews.
Numberofhoursthesnowmeltingsystemisoperating.
BacktoMyDevices
Backtocontrolpage
• Editdevicename• Deletedevices
• Presstostartmelting• Presstostopmelting• GreyedoutwhenoffforWarm
WeatherShutDownorColdWeatherCutOut
Control Operation
Energy Usage
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Sequence of OperationSnow Melting OverviewAsnowmeltingsystemcanofferasafe,convenient,andcosteffectivewayofremovingsnowandicefromthesnowmeltingslabandsimilarsurfaces.Safetyisincreasedbyactivatingthesnowmeltingsystemassoonasthesnowfallsratherthanwaitingformechanicalsnowremovalaftersnowhasaccumulated.Thiseliminatessliphazardsandreducestheriskofinjurybymechanizedsnowmeltingequipment,therebyreducingpotentialliabilitycosts.Theeliminationofsnowplowequipmentandcorrosivesaltsalsoreducesdamagetotheslabsurfaceandtotheenvironment.Whencontrolledcorrectly,snowmeltingsystemscanbecostcompetitivecomparedtomechanicalsnowremoval.Thesnowmeltingcontrolcanoperateinoneoffourdifferentways:
Melt Heatstheslabtomeltsnoworice.Defaultis36°F(2°C)Idle Preheatstheslabjustbelowfreezingtoshortenthe
timerequiredtomeltsnow.Defaultisoff.
Melt – Automatic Start and StopAutomaticstartandstopoperationrequirestheinstallationofaSnow/IceSensor090(65'or20mcable)or094(208'or63mcable).Thesensorisinstalledin-slablevelwiththemeltingsurface.Thecontrolcontinuallymonitorsthesensorforthepresenceofmoistureandslabtemperatureconditionsinwhichsnoworicemaybepresent.Whenmoistureisdetected,thecontrolshows“SensorWaterStatus–Wet”intheSlabStatusmenu.Whenthesensorisdrythecontrolshows“SensorWaterStatus–Dry”.ThecontrolincludesaSensitivitysettingintheTemperaturesmenuthatallowstheinstallertoadjusttheamountofmoisturerequiredtostartandstopthemeltingoperation.Inareaswithlowamountsofdustand/orairpollution,thesensitivitymayneedtobeincreased.ThedefaultsensitivitysettingisAuto.Thissettingallowsthecontroltoautomaticallydeterminethebestsuitablesensitivity
PushSTOPButton
090or094andSlabDryandAddMeltTimeElapses
or
Idle
Off WWSD
MobileAppStopButton
Gateway482or485StopMessage
090or094DetectsWater
ExitsCWCOMelt
Suspended
EntersCWCO
Melting
AutoStart/AutoStop
settingfortheinstallation.Whenmoistureisdetectedandtheslabandoutdoortempera-turesareatorbelowfreezing,thecontrolwillautomaticallystartthesnowmeltingsystem.Asthesnoworicemeltsandtheslabdriesoff,thesensoralsodriesoffatthesametime.Whenthesensorisdry,thesnowmeltsystemautomaticallyshutsoff.Iftherearelowspotsontheslabsurfacethatdryoffslowerthanthesensor,additionalmeltingruntimecanbeincludedbyadjustingtheAdditionalMeltTimesettingintheTemperaturesmenu.If the snow melting system is manually stopped, the snow/ice sensor must fully dry before it is able to detect a new snow fall and automatically start the snow melting system.
Snow/Ice Sensor 090 or 094
Theslabtemperaturemustreachtheslabtargetinorderforthesystemtoshutoffautomatically.Thecapacityoftheheatsourcemustbesizedtoensuremeltingaslowasthecoldweathercutoff.Inaddition,theheatsourcemaximumtemperaturesetting
mustbesettoprovidethefullcapacityoftheheatingappliance.Forexample,boileraquastatsshouldbesetto180°F(82°C).Failuretomeettheserequirementsmayresultinthesnowmeltingsystemnotautomaticallyshuttingoffwhentheslabisdry.
OutdoorTemperature
SlabTemperature
MELT
IDLEorSTORM
WWSD
CWCO
ControlentersIdleandwaits
forMeltEnable
Storm Temporarilypreheatstheslabjustbelowfreezingtoshortenthetimerequiredtomeltsnow.Defaultisoff.
Off SnowmeltingsystemisoffThedisplayshowsthecontroloperationinthehomescreen.
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Melt – EconoMelt
WhenaSnow/IceSensor090or094isinstalled,theinstallercanchoosetoselecttoeitherautomaticallyormanuallystartthesnowmeltingsystem.SelectingEconoMelttoOnallowssnowremovalusingasnowploworshovel.Theremainingthinlayerofsnoworicethatmechanicalsnowremovalmethodsareunabletoremovecanbemeltedusingthemanualstartoperation.Thesnowmeltingsystemstopswhenthesensorisdry.ThefactorydefaultforEconoMeltisOff.
PushMeltButton
MobileAppMeltButton
Gateway482or485MeltMessage
ManualMeltSwitch
090andSlabDryandAddMeltTimeElapses
WWSD
PressStopButton
MobileAppStopButton
Melting
ManualStart/AutoStop
Off
ExitsCWCOMelt
Suspended
EntersCWCO
Melt – Automatic Start and Timed Stop
Automaticstartwithatimedstopoperationrequirestheinstal-lationofaSnowSensor095.Thesensorisaerialmountedonapolenearthemeltingsurface.ItishighlyrecommendedtoalsoinstallaSlabSensor072(20’or6mcable)or073(40’or12mcable)inordertoregulatetheslabtemperatureandoperatethesnowmeltingsystematthehighestpossibleefficiency.Thecontrolcontinuallymonitorsthesnowsensorforthepresenceofmoistureandslabtemperatureconditionsinwhichsnoworicemaybepresent.Whenmoistureisdetected,thecontrolwillshow“SensorWaterStatusWet”intheSlabStatusmenu.Whenthesensorisdrythecontrolwillshow“SensorWaterStatusDry”.ThecontrolincludesaSensitivitysettingintheTemperaturesmenuthatallowstheinstallertoadjusttheamountofmoisturerequiredtostartand
stopthemeltingoperation.Inareaswithlowamountsofdustand/orairpollution,thesensitivitymayneedtobeincreased.ThedefaultsensitivitysettingisAuto.Thissettingallowsthecontroltoautomaticallydeterminethebestsuitablesensitivitysettingfortheinstallation.WhenmoistureisdetectedandboththeslabandoutdoortemperaturesarebelowtheMeltingsetting,thecontrolautomaticallystartsthesnowmeltingsystem.ThesnowmeltingsystemoperatestoheattheslabtotheslabtargettemperatureandcontinuestooperateuntilthetimesetbytheManualMeltRunTimeintheTemperaturesmenuelapses.Ifthe095re-detectswater,thetimerisrestartedtooperateforthefullruntime.
Snow Sensor 095
095DetectsWater
ManualMeltRunTimeElapses
WWSD
PushStopButton
MobileAppStopButton
Gateway482or485StopMessage
CWCO
Melting
AutoStart/TimedStop
or
Idle
Off
095RedetectsWater
Additional Melting Time
DrySnow Ice Sensor
ASnow/IceSensor090or094automaticallyshutsoffthesnowmeltingsystemwhenthewatersensorisdry.Duetotheconstructionoftheslabandthelayoutoftheheatingpipeorelectricalcable,theremaybeareasthatdonotmeltcom-pletely.TheAdditionalMeltTimesettingintheTemperaturesmenuallowstheinstallertosetadditionmeltingtimeafterthesensorisdry.
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Melt – Manual Start and Timed StopThesnowmeltingsystemcanbestartedmanuallyinoneoffourdifferentmethods:• TouchtheMeltbuttononthecontroldisplay• Throughthemobileapp• ThroughaGateway482or485meltrequestmessage• BymanuallyconnectingtheManualMeltandComwiring
terminals13and14together.
PushMeltButton
MobileAppMeltButton
Gateway482or485MeltMessageManualMeltSwitch
ManualMeltRunTimeElapses
WWSD
PushStopButton
MobileAppMeltButton
Gateway482or485StopMessage
CWCO
Melting
ManualStart/TimedStop
or
Idle
Off
Oncemanuallystartedandtheslabwarmsuptotheslabtarget,thesnowmeltingsystemrunsuntilthetimesetbytheManualMeltRunTimesettingintheTemperaturesmenuelapses.
IfamanualstarthasbeenprovidedandaSnow/IceSensordetectswater,thecontrolchangesfrommanualmelttoautomaticoperation.ThesnowmeltingsystemrunsuntilthesensorisdryandtheAdditionalMeltTimeelapses.
Tandem Snow/Ice Detection
The670canbepairedtogetherwitha654toallowtwoSnow/Icesensors090or094orSnowSensors095tobeinstalledforasinglezone.Thisprovidesfullredundancyandincreasesthesnowdetectionarea.Bothsensorsareusedtodetectsnoworiceandifeithersensoriswetthesnowmeltingzonestartsmelting.Thecontrolcontinuestooperateuntilbothsensorsaredry.Thisallowssnoworicedetectionoverawiderarea.Intheeventofasensorfailure,thecontrolcontinuestooperatenormally,givingbuildingmaintenancestafftimetotroubleshootandreplacethefaultysensorifnecessary.
PressMeltbuttontostartmeltingoperation
Melt - Tracked Start and StopThesnowmeltingsystemcanhavemultiplezones.Zoneshavetheoptiontotrackthemeltingruntimeofzone1.Thisisusefulincaseswherezone1hasanautomaticSnow/IceSensorinstalledandtheremainingzonesdonot.Thisallowszones2to12togainthefunctionalityofautomaticstartingandstoppingwithonlyoneSnow/Icesensorinstalledinthesystem.Whenzone1detectssnoworice,itstartsmelting.Zoneswithtrackingenabledcanalsostartmeltingunlesspriorityisselected.Whenthesensorinzone1isdryortheManualMeltRunTimehasfullyelapsed,itsendsasignaltothetrackedzonesthatzone1hasstopped.EachzonecancontinuetooperatetocompletetheirownAdditionalMeltTimeafterwhichthezonestopsheatingandreturnstotheOfforIdleoperation.Zoneswithpriorityselectedstartafterzone1hasfinishedmeltingandrepeatthesameruntimeaszone1.
Zone1
TrackMeltStartandStop
RecordsRun Time
Snow / IceSensor
SlabSensor
SlabSensor
Zone2 Zone3
RepeatsZone 1 RunTime + AddMelt Time
RepeatsZone 1 RunTime + AddMelt Time
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Idle OperationWhenthesnowmeltingsystemstartsfromacoldtemperature,theremaybealongtimedelaybeforetheslabiswarmenoughtomeltsnow.Thistimedelayallowssnowtoaccumulateontheslabwhichisnotacceptableinsomecommercialandinstitutionalapplications.Todecreasethestart-uptime,theslabcanbepre-heatedtomaintainaminimumtemperature.ThisisknownastheIdletemperature.Idlingrequireslargeenergyconsumptionandisgenerallyrecommendedforinstitutionaland/orcommercialinstallationswheresafetyconcernsareparamount.Thedisplayshows"SystemisIdling"whenthecontrolisinidleoperation.Whendesigningasnowmeltingsystem,anengineermayspecifytheamountofallowedsnowaccumulationastheSnow-FreeAreaRatio.Therearethreedifferentlevels.ASnow-FreeAreaRatioof1isdefinedasasystemthatmeltsallsnowasitfallswithnoallowedaccumulation.ThisrequiresthattheIdletemperaturebesetjustbelowfreezing.Examplesofthesetypesofapplicationsinclude:• Hospitalemergencyareas• Helicopterlandingpads• Parkinggarageramps
ASnow-FreeAreaRatioof0.5isdefinedasasystemwithpartialsnowaccumulationontheslabbutnotinallareas.
ThesetypesofsystemsmayalsouseIdlingbutusuallysetatatemperatureseveraldegreesbelowfreezingtoreduceenergyconsumption.Applicationsmayinclude:• Steepresidentialdriveways• Commercialsidewalks• LoadingdocksASnow-FreeAreaRatioof0isdefinedasasystemthatallowssnowaccumulation.Thesesystemsoperatethesnowmeltingsystemfromacoldstartresultinginthelowestenergyconsumptioncostsandthelongesttimestostartmeltingsnow.InthiscasesettheIdletooff.Thisisrecommendedformostresidentialapplicationssuchas:• Flatresidentialdriveways• Patios• ResidentialsidewalksSomesystemsaredesignedforkeepingaslabsurfacefreeoficeratherthanfreeofsnow.Themostcommonapplicationsinclude:• Carwashbaysandaprons• Aircrafthangeraprons• TurfconditioningongolfcoursegreensThesesystemsrequiretheuseofIdlingatornearfreezingthroughoutthewinterandmayresultinhighenergyconsumption.
Storm Operation
TheStormoperationcombinesthebenefitsofafastresponsetimetogetherwithloweroperatingcosts.Typicallythestormtemperatureissetbelowfreezingtomaximizeenergysavings.IntheeventthatsnowfallsandisdetectedbyaSnow/IceSensororaSnowSensororthesystemismanuallystarted,thesnowmeltsystemheatstheslabuptothemeltingtemperatureandcompletesameltingcycle.Shouldnosnowfallduringthestormtimeperiod,thecontrolexitsStormoperationandreturnstoOff.TheStormoperationissetupbysettingtheStormtemperatureandtheStormRunTimeintheTemperaturesmenu.
Auto Storm--------------------------------------ThecontrolautomaticallychecksanInternetweatherservicetodeterminethesnowfallforecastforaregionbasedupontheUSZIPorCanadianpostalcode.WhentheStormfeatureisonandsnowfallispredicted,thecontrolautomaticallyheatstheslabtothestormsetting.WhenconnectedusingtekmarNet,a670canautomaticallystartthestormoperationonaSnowMeltingControl654.Todothissetthe670andthe654tousethesameStormGroupnumber.
AutoStorm(WeatherPredictive)
UserSwitchButton
GatewayStormEnable
StormRunTimeElapses
Awayscene
UserSwitchButton
GatewayStormDisable
WWSDCWCO
StormOff
If
Then
forecast
Manual Storm-----------------------------------ThestormoperationcanbemanuallystartedbyaUserSwitch480or481oraGateway482or485.ThemanualstormusestheStormGroupnumberinthetekmarNetmenu.SetupProcedureStep1:Setthe670StormGroupnumberfrom1to12.Thedefaultis12.Step2:SettheUserSwitchortheGatewaytousethecorre-spondingStormGroupnumber.WhentheUserSwitchbuttonispressed,the670willentertheStormOperation.Likewise,activatingtheStormGroupontheGatewaycausethe670toentertheStormOperation.
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670
tekmarNet
Snow MeltZone 1
Snow MeltZone 2
670
Snow Melt Zones and Priority
Slab ProtectionInahydronicsnowmeltingsystem,theboilerorheatingplantcapacitymaybemuchlargerthantheloadofthesnowmeltingzones.Thiscanresultinlargetemperaturedifferentialsbetweenthesupplywatertemperatureandtheslabcreatinglargetensilestressesontheslab.Concreteisweaktotensileforcesandwhenrepeatedlyexposedtotensileloadstheconcretemaycrack.ThismaybepreventedbyselectingtheSlabProtectionsettingintheSystemSetupmenutoOn.Thecontrolmeasuresandlimitsthetemperaturedifferentialbetweenthesupplywaterandtheslab.
tensile stresses
Dividingasystemintoanumberofsnowmeltingzonesandprioritizingthezoneoperationreducesthesizerequirementsofthehydronicheatingplantortheamperageoftheelectricalservicepanel.Thisresultsinlowerinitialcapitalcostofthesnowmeltingsystem.Thetradeoffisthatsomesnowmeltzonesmaynotbeabletomeltassoonasthesnowfallbeginsandtheusermusttoleratesnowaccumulationontheslab.ThesnowmeltsystemusingSnowMeltingControl654and670mayhaveupto12snowmeltzones.Zone1hasthehighestpriorityandzone12hasthelowest.TheprioritysettinginthetekmarNet®menuallowstheinstallertoselectthelevelofzonepriorityfortheentiresnowmeltsystem.Changingtheprioritysettingononecontrolwillupdateonallothersnowmeltcontrolsatthesametime.Thezonepriorityhas3settinglevels.Thereissomeriskthatlowerpriorityzonesmayiceupwhentheyareshutoffbythehigherpriorityzone.Forexample,ifahighpriorityzoneshouldfinishmeltingandallowalowerpriorityzonetostartmelting,andthenanewsnowfalloccurs,thehighpriorityzonewillshutoffthelowerpriorityzones.Thismaypotentiallyallowthelowerpriorityzonestoiceover.Thelimitationsofzoningand
usingprioritymustbecarefullyconsideredanddiscussedwiththebuildingownersandoccupantswhendesigningthesnowmeltingsystem.PrioritydoesnotapplywhentheapplicationmodeissettoBoiler.Inthismode,theboilerisdedicatedtoasinglesnowmeltingzonesopriorityisnolongerapplicable.
Slab Temperature Control
Controllingtheslabtemperatureiscriticaltominimizingthecostofsnowmelting.ThisrequiresthateitheraSnow/IceSensor090or094oraSlabSensor072or073isinstalled.TheSnow/IceSensorcontainsabuilt-inslabtemperaturesensor.Whilethecontrolcanoperatewithoutaslabsensorinstalled,operatingcostsaremuchhigher.Theslabisoperatedusingslaboutdoorreset.Astheoutdoortemperaturegetscolder,theheatlossoftheslabincreases.Inordertokeeptheslabsurfaceataconstanttemperaturewhileoperating,theinnercoreoftheslabmustbeheatedabovethemelt,idleorstormtemperaturesetting.Theamountthattheslabinnercoretemperatureisabovethemelt,idleorstormsettingisproportionaltotheoutdoortemperature.Sincetheslabsensorisinstalledbelowthesurfaceoftheslab,itisnotmeasuringthetrueslabsurfacetemperaturebutrathertheinnercoretemperature.Thecontrolautomaticallycompensatesforthistemperaturedifference.TheSlabitemin
theStatusmenudisplaystheactualmeasuredtemperature,soitisnormaltoviewslabtemperaturesthatexceedthemelt,idle,orstormtemperaturesettings.
Surface temperature = 35ϒF
Decreasing Air Temperature
Incr
easi
ng S
lab
Cor
e Te
mpe
ratu
re
SlabSurfaceTemperatureisConstant
SlabOutdoorResetSlabOutdoorReset
Core(sensor)iswarmer
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Priority = NoneAllzoneshavethesamepriorityandcanoperateatthesametime.Thissettingisrecommendedwhentheboilerplantcapacityissizedlargerthantheheatlossofallzonesatdesignconditions.
Priority = ConditionalThezonewiththelowerprioritystartsmeltingwhenthezonewithhigherpriorityiswarmenoughtomeltsnoworice.Thissettingisrecommendedwhentheboilerplantcapacityissizedtobelargerthantheheatlossofeachzonewithsomeextracapacity.
Priority = FullThezonewiththelowerprioritystartsmeltingoncethezonewithhigherpriorityhasfinishedmeltingallsnoworicefromtheslab.Thissettingisrecommendedwhentheboilerplantcapacityissizedtobethesameastheheatlossofeachzoneatdesignconditions.
Hydronic Priority Levels--------------------------------------------------------------------------------
Electric Priority Levels---------------------------------------------------------------------------------Electricsnowmeltingoffersthreelevelsofpriority:None,ConditionalandFull.TheNoneandFullpriorityoptionsfunctionthesameaswiththehydronicoperation.TheConditionalpriorityisuniquetoelectricaloperation.Thehighestpriorityzoneoperatesfirst.Wheneverthehighestpriorityzoneshuts
offitsrelay,thelowerpriorityzoneisallowedtostartmeltingandcloseitsrelay.Onlyoneelectricalrelayisallowedtobeonatanytime.Thiseliminateslargeinstantaneousdemandsandavoidssurchargesfromtheelectricalutility.
Zone 1
MELT
OFF
Zone 2
MELT
OFF
Zone 1
MELT
OFF
Zone 2
MELT
OFF
Zone 1
MELT
OFF
Zone 2
MELT
OFF
Zone 1
MELT
OFF
Zone 2
MELT
OFF
Zone 1 Relay
ON
OFF
Zone 2 Relay
ON
OFF
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Thecontrolhasabuilt-intimeclockthatcanbesetmanuallyorautomaticallybytheInternet.Abattery-lessbackupallowsthecontroltokeeptimeforupto4hourswithoutpower.ThetimeclocksupportsautomaticadjustmentforDaylightSaving
Time(DST)oncetheday,monthandyearareentered.UsetheTimemenutosetthecorrecttime,day,monthandyear.Ifthetimeanddateissetincorrectly,thecontrolmaybeunabletocommunicatetothemobileapp.
Time Clock
Away Operation
tekmarNet Scene Operation
Whileonvacationandawayfromabuilding,itmaynotbenecessarytooperatethesnowmeltingsystem.Theawayfeatureallowstheusertoshutoffthesnowmeltingsystemtomaximizeenergysavings.TheAwayfeaturecanbeactivatedthroughthe:
• Awaymenu• tekmarConnectmobileapp• tekmarNetUserSwitch480or481• tekmarNetGateway482or485
ThetekmarNetsystemsupportsupto8scenes.The670supportstekmarNetscenes1(normaloperation)and2(away).DuringtekmarNetscenes3through8,the670remainsinscene1(normaloperation).
Warm Weather Shut Down
Cold Weather Cut Off
Duringwarmweather,theslabiswarmenoughtonaturallymeltsnoworice.ThecontrolhasaWarmWeatherShutDown(WWSD)settingintheTemperaturesmenuthatpreventsthecontrolfromenteringMelt,IdleorStormoperationinordertoconserveenergy.Thecontrolshows,"SystemisOff–WarmWeatherShutDown"onthedisplaywhenWWSDisineffect.
Automatic (Auto)ThecontrolentersWWSDwhenboththeslabtemperatureandtheoutdoortemperatureexceedtheMeltingSetpointtemperaturesettingbymorethan2°F(1°C).
Manual WWSDThecontrolentersWWSDwhentheoutdoorairtemperatureexceedstheWWSDsettingby1°F(0.5°C)andwhentheslabtemperatureexceeds34°F(1°C).ThecontrolexitsWWSDwhentheoutdoorairtemperaturefalls1°F(0.5°C)belowtheWWSDsettingoriftheslabtemperaturefallsbelow34°F(1°C).ThisallowstheMeltingSetpointsettingtobesethigherthantheWWSD.Thisisusefulwhenhighslabtemperaturesarerequiredtomeltthesnoworice.Anexampleofthisareinstallationsusingpavingbricksontopofsandandconcretelayers.
Maintainingthemeltingoridlingsetpointtemperatureduringextremelycoldtemperaturesisnotonlyexpensivebutmaybeimpossibleiftheheatlossoftheslabexceedstheinputcapacityoftheheatingplantorelectriccable.ThecontrolturnsthesnowmeltingsystemoffwhentheoutdoorairtemperaturedropsbelowtheColdWeatherCutOff(CWCO)temperatureandtheslabisbelowfreezing.Thisisasafetyandenergysavingmeasure.Thecontrolshows,"Systemis
Off–ColdWeatherCutOff"onthedisplaywhenCWCOisineffect.WhenthetemperaturereachestheCWCOsettinginanactivelymeltingsystemwithan090or094,meltingissuspendeduntiltheoutdoortemperaturerisesabovetheCWCOsettingatwhichtimemeltingisresumed.Ifan090or094isnotinstalled,meltingisstoppedwhenCWCOisineffectandmeltingdoesnotresumewhenthetemperaturerisesabovetheCWCOsetting.
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Application Modes
Pulse Width Modulation Zone Operation
Thesnowmeltingcontrolcanoperateeitheranelectricorahydronicsnowmeltingsystem.Ahydronicsystemcanbecategorizedasboiler,mixing,boilerandmixing,orpulsewidthmodulationzoneoperation.Adedicatedboileronlyprovidesheatforthesnowmeltingsystem.Asharedboilerprovidesheatforthesnowmeltingsysteminadditiontothespaceheatingand/oradomestichotwatersystem.ThesechoicesaffectwhichApplicationModeisselectedintheSystemSetupmenu:
• PWMZone PulseWidthModulationZoneOperation• Boiler BoilerOperation• Mixing MixingOperation• Boiler+Mix BoilerandMixingOperation• Electric ElectricalOperation
Electric OperationTheApplicationModeshouldbesettoElectricwhenoperatinganelectricheatingcable.Thecontroloperatestheheatrelayona20-minutepulsewidthmodulationcycle.Theheatrelayinturnactivatesalinevoltageelectricalcontactortoenergizetheelectricalcableheaterinstalledintheslab.Therelayontimeisdeterminedbythecalculatedslabtargetandbythemeasuredslabtemperaturereading.Astheslabtemperaturereachestheslabtarget,theon-timepercycleoftherelayisreducedtopreventtheslabtemperaturefromovershooting.Ifnoslabsensorisinstalledtherelayremainson100%ofthetimeuntiltheMeltoperationhascompleted.IdleandStormoperationarenotavailablewhenaslabsensorisnotinstalled.Theelectricoperationrequirestheinstallationofanoutdoorsensor.Aslabsensorishighlyrecommendedinordertoreduceoperatingcosts.
Relay operation:• Heatrelay—cyclesonandoffusingPulseWidthModulation• Systempump—notused• Primarypump—notused• Boilerstage1—notused• Boilerstage2—notused
TheApplicationModeshouldbesettoPulseWidthModulation(PWM)Zonewhenthesnowmeltingsystemiswarmedfromaheatsourcethatissharedwithotherloadsinabuilding.Thecontroloperatesthesystempumptooperatecontinuouslyduringmelt,idleandstormoperation.Theboilerstage1relayoperatesona20-minutepulsewidthmodulationcycle.Therelayontimeisdeterminedbythecalculatedslabtargetandbythemeasuredslabtemperaturereading.Astheslabtemperaturereachestheslabtarget,theontimepercycleoftherelayisreducedtopreventtheslabtemperaturefromovershooting.Ifnoslabsensorisinstalledtheheatrelayremainson100%ofthetimeuntiltheMeltoperationhascompleted.IdleandStormoperationarenotavailablewhenaslabsensorisnotinstalled.ThePWMZoneoperationrequirestheinstallationofanoutdoorsensor.Aslabsensorishighlyrecommendedinordertoreduceoperatingcosts.
Relay operation:• Systempump—operatescontinuouslyduringmelting,
idlingorstorm• Heatrelay—cycleson/offusingPulseWidthModulationto
controltheslabtemperature• Boilerstage1—cycleson/offusingPulseWidthModulation
tocontroltheslabtemperature• Boilerstage2—notused
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Boiler Operation
TheApplicationModeshouldbesettoBoilerwhenthesnowmeltingsystemhasadedicatedboilerorheatsourceandthereisnomixingdevice.Theboilerispipedprimary-secondarytothesnowmeltingloop,therebyallowingtheboilertofireonandoffwhileallowingcontinuousflowthroughthesnowmeltingsystemloop.ThecontrolcalculatesaBoilerTargetbasedupontheSlabTarget,whichinturnisbaseduponthemeasuredoutdoortemperatureandtheMelt,IdleorStormtemperaturesetting.TheboilerisfiredtomaintaintheBoilerTargetattheBoilerSupplySensorlocation.Thecontrolcanoperateaboilerinoneoffourdifferentmethods:modulatingboiler,1stage,2stageandEMS.TheBoilerTargetisshownintheSystemStatusmenu.SettingsfortheboileroperationarelocatedintheBoilerSetupmenu.
1 Stage Boiler-----------------------------------Thecontrolturnstheboilerstage1relayonorofftofiretheboilerandmaintaintheBoilerTargettemperature.Theboilersupplytemperatureoperatesonadifferentialthatishalfaboveandhalfbelowtheboilertarget.ThestatusoftheboilerisshownintheSystemStatusmenu.
2 Stage Boiler-----------------------------------Thecontrolturnstheboilerstage1and2relaysonorofftofireasingleboilerinordertomaintaintheBoilerTargettemperature.Theboilersupplytemperatureoperatesonadifferentialthatishalfaboveandhalfbelowtheboilertarget.TheboilerstagingisoperatedautomaticallyusingPIDlogic.Thestatusoftheboilerstages1and2isshownintheSystemStatusmenu.
Modulating Boiler-------------------------------Thecontrolcanoperateasinglemodulatingboilerusingthemodulatingoutputandtheboilerstage1contact.Thecontroloperatestheboilerbyfirstswitchingtheboilerstage1contacttoallowthemodulatingboilertogothroughtheignitionsequence.Theboilerstage1contactmaynotberequiredonallmodulatingboilers.A0-10V(dc)or4-20mAanalogsignalisthenusedtomodulatetheboilerfiringratestartingat50%(5V(dc)or12mAsignal)for30seconds.Afterthe30-seconddelayhaselapsed,thecontrolwillthenallowtheboilertomodulatedowntotheBoilerMinimumModulationsettingandholdittherefortheBoilerModulationDelaytimesetting.Afterthemodulationdelayhaselapsed,thecontrolusesPIDlogictochangetheboilerfiringratesignalinordertosatisfytheboilertargettemperature.Whenthefiringratesignalisreduceddowntotheminimummodulatingsettingandtheboilersupplytemperatureexceedstheboilertargetby1/2ofthedifferential,thecontrolwillshutofftheboilerburner.ThemodulatingsignaloutputisshownbytheBoilerOutputintheSystemStatusmenu.TheBoilerModulationDelaysettingisdeterminedbytheboilermanufacturer.Itistheamountoftimethattheburnermustoperatebeforetheinternalboilercontrolallowsanexternalsignaltooperatetheburner.TheBoilerMotorSpeedsetstherateatwhichthemodulatingelectricalsignalcanchange.FormostmodulatingboilerswithanECMfan,theboilermotorspeedcanbesetto30seconds.Forcommercialboilerswithamodmotor,settheboilermotorspeedaccordingtothetimerequiredbythemodmotortotravelfromtheclosedtoopenposition.
Theboileroperator,oraquastat,remainsintheburnercircuitandactsasasecondaryupperlimitontheboilertemperature.Itisrecommendedtosettheboileraquastattemperaturetoatleast180°F(82.0°C)inordertopreventshortcyclingoftheburner.
EMS Voltage V (dc)
EMSSIGNAL
MIN
10V(dc)
EMSLOW
TEMP
EMSHIGHTEMP
Sup
ply
Wat
er T
empe
ratu
re
EMS Current mA
EMSSIGNAL
MIN
20mA
EMSLOW
TEMP
EMSHIGHTEMP
Sup
ply
Wat
er T
empe
ratu
re
EMS---------------------------------------------Whentheboilerisrequiredtooperate,thecontrol'sboilermodulationoutputisadjustedtoanappropriateanalogsignalcorrespondingtotheboilertargettemperatureandthenturnsontheboilerstage1relay.TheanalogsignalisproportionaltotheboilertargetinalinearlinedefinedbytheEMSSignalMinimum,theEMSLowTemperature,andtheEMSHighTemperaturesettings.
Relay operation:Systempump—operatescontinuouslyduringmelting,idlingorstormHeatrelay—cycleson/offwithboilerstage1Boilerstage1—cycleson/offbasedonboilertargetBoilerstage2—cycleson/offbasedonboilertargetwhenusingatwo-stageboiler,otherwiseoff.
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Mixing Operation
TheApplicationModeshouldbesettoMixingwhenamixingvalveoramixinginjectionpumpisinstalledwithasharedboilerplant.Fourmixingoptionsareavailable:• Floatingactionmixingvalve• Variable-speedinjectionpump• Analogmixingusing0-10V(dc)• Analogmixingusing4-20mAThecontrolcalculatestheSlabTargettemperaturebasedontheoutdoorairtemperatureandtheMelting,IdlingorStormSetpoint.ThecontrolthendeterminestheMixSystemTargetbasedontheSlabTargetrequirements.TheMixMaximumsettinglimitstheuppertemperatureoftheMixSystemTarget.TheMixSystemTargetisshownintheSystemStatusmenu.Fordesignandsizingofthevariable-speedinjectionmixingpump,pleaserefertotheEssayE021.
Relay operation:• Systempump—operatescontinuouslyduringmelting,
idlingorstorm
• Heatrelay—closeswhenthemixingvalveisopenorthevariablespeedinjectionpumpisoperating.
• Boilerstage1—turnsonwhenthevalveisopenorthevariablespeedinjectionpumpisoperating.
• Boilerstage2—notusedIf using Floating Action Mixing• Floatingactionopen—contactclosesmomentarilywhen
pulsingactuatoropen• Floatingactionclosed—contactclosesmomentarilywhen
pulsingactuatorclosedIf using Variable Speed Injection Mixing• InjectionMixingOutput—avariablespeedsignalis
suppliedtothepumpIf using Analog Mixing• AnalogMixingOutput—asignalrangesbetween0-10V
(dc)or4-20mA
Post Purge
ExercisingInahydronicsnowmeltingsystem,thecontroloperatesthesystem,primary,boiler,variablespeedinjectionmixingpumpandmixingvalveevery3daystopreventpumpandvalveseizure.
Theboilerorheatsourceisshutoffandthesnowmeltingsystemcontinuestooperatefor20secondstopostpurgeheatfromtheboilertotheload.
Boiler and Mixing OperationTheApplicationModeshouldbesettoBoiler+Mixwhenamixingvalveoramixinginjectionpumpisinstalledtoregulatethesupplywatertemperaturetothesnowmeltingsystemwithadedicatedboilerplant.Inthiscase,thecontroloperatesboththemixingdeviceandthededicatedboileratthesametime.ThecontrolcalculatestheSlabTargettemperaturebasedontheoutdoorairtemperatureandtheMelting,IdlingorStormSetpoint.ThecontrolthendeterminestheMixSystemTargetbasedontheSlabTargetrequirements.ThecontrolthendeterminestherequiredBoilerTargetthatisrequiredtomeettheMixSystemTarget.RefertotheBoilerandMixingOperationsectionsfordetailedinformationontheboilerandmixingoperation.
Relay operation:• Systempump—operatescontinuouslyduringmelting,
idlingorstorm• Heatrelay—operateswhentheboilerisfiring
• Boilerstage1—cycleson/offbasedonboilertarget• Boilerstage2—cycleson/offbasedonboilertargetwhen
usingatwo-stageboiler,otherwiseoff.If using Floating Action Mixing• Floatingactionopen—contactclosesmomentarilywhen
pulsingactuatoropen• Floatingactionclosed—contactclosesmomentarilywhen
pulsingactuatorclosedIf using Variable Speed Injection Mixing• InjectionMixingOutput—avariablespeedsignalissupplied
tothepumpIf using Analog Mixing• AnalogMixingOutput—asignalrangesbetween0-10V
(dc)or4-20mA
Outdoor SensorTheoutdoorairtemperatureisrequiredforallapplicationmodes.Thecontrolhastheoptiontomeasureanoutdoorairsensorortheoutdoortemperaturecanbeprovidedthrough
thetekmarNetsystemorthroughtheInternetweatherservice.ThisisselectedbytheOutdoorSensorsettingintheSystemSetupmenu.
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1.Find:IfthecontrolshowstheWarningSymbol onthescreen,itisindicatingaproblemonthesystem.2.Identify:PresstheWarningSymboltoviewtheerrorcode.3.Solve:Usethechartbelowtomatchtheerrorcodetotheoneonthecontrol.Usethedescriptiontosolve
theproblem.
Error Messages (1 of 4)Description
TEMPERATURE MENU SAVE ERRORThecontrolfailedtoreadtheTemperaturesmenusettingsfrommemoryandhasreloadedthefactorydefaultsettings.ThecontrolstopsoperationuntilallsettingsintheTemperaturesmenuarechecked.Tocleartheerror,settheaccessleveltoInstallerandcheckallsettingsintheTemperaturesmenu.
SYSTEM SETUP MENU SAVE ERRORThecontrolfailedtoreadtheSystemSetupmenusettingsfrommemoryandhasreloadedthefactorydefaultsettings.ThecontrolstopsoperationuntilallsettingsintheSystemSetupmenuarechecked.Tocleartheerror,settheaccessleveltoInstallerandcheckallsettingsintheSystemSetupmenu.
BOILER SETUP MENU SAVE ERRORThecontrolfailedtoreadtheBoilerSetupmenusettingsfrommemoryandhasreloadedthefactorydefaultsettings.ThecontrolstopsoperationuntilallsettingsintheBoilerSetupmenuarechecked.Tocleartheerror,settheaccessleveltoInstallerandcheckallsettingsintheBoilerSetupmenu.
MIXING SETUP MENU SAVE ERRORThecontrolfailedtoreadtheMixingSetupmenusettingsfrommemoryandhasreloadedthefactorydefaultsettings.ThecontrolstopsoperationuntilallsettingsintheMixingSetupmenuarechecked.Tocleartheerror,settheaccessleveltoInstallerandcheckallsettingsintheMixingSetupmenu.
tekmarNet MENU SAVE ERRORThecontrolfailedtoreadthetekmarNetmenusettingsfrommemoryandhasreloadedthefactorydefaultsettings.ThecontrolstopsoperationuntilallsettingsinthetekmarNetmenuarechecked.Tocleartheerror,settheaccessleveltoInstallerandcheckallsettingsinthetekmarNetmenu.
WiFi MENU SAVE ERRORThecontrolfailedtoreadtheWiFimenusettingsfrommemoryandhasreloadedthefactorydefaultsettings.ThecontrolstopsoperationuntilallsettingsintheWiFimenuarechecked.Tocleartheerror,settheaccessleveltoInstallerandcheckallsettingsintheWiFimenu.
MAX MELT DAYS ERRORThecontrolhasoperatedinmeltingforthetimesetbyMaximumMeltDayssettinglocatedintheSystemSetupmenu.Thiserrorisusuallycreatedwhenthereisamechanicalsystemfailureresultinginthesnowmeltslabnotheatingcorrectly.CleartheerrormessagebytouchingtheCancelbuttonwhileviewingtheerrormessage.UsetheManualOverridemenutomanuallycheckthateachcomponentofthemechanicalsystemisoperatingcorrectly.Ifnecessary,changetheMaximumMeltDayssettingtoalongertimeperiodortoOff.
OUTDOOR SENSOR OPEN CIRCUIT ERRORDuetoanopencircuit,thecontrolisunabletoreadtheOutdoorSensor070onterminals16and18.ThiserrormayalsooccurwhenusingtheoutdoortemperaturefromatekmarNetsystem.Thecontrolcontinuestooperateandassumesanoutdoortemperatureof32°F(0°C).EnergysavingfeaturessuchasWarmWeatherShutDown(WWSD)andColdWeatherCutOff(CWCO)aredisabled.Checktheoutdoorsensorwireforopencircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacetheoutdoorsensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
OUTDOOR SENSOR SHORT CIRCUIT ERRORDuetoashortcircuit,thecontrolisunabletoreadtheOutdoorSensor070onterminals16and18.Thecontrolcontinuestooperateandassumesanoutdoortemperatureof32°F(0°C).EnergysavingfeaturessuchasWarmWeatherShutDown(WWSD)andColdWeatherCutOff(CWCO)aredisabled.Checktheoutdoorsensorwireforshortcircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacetheoutdoorsensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
Troubleshooting
!Itisrecommendedtocompleteallwiringtoensuretroublefreeoperation.Shouldanerroroccur,simplyfollowthesesteps:
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Description
MIX SUPPLY SENSOR OPEN CIRCUIT ERRORDuetoanopencircuit,thecontrolisunabletoreadtheMixSupplySensor082onterminals15and16.Thecontrolstopsoperationanddoesnotprovideanyheat.Checkthesystemsupplysensorwireforopencircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacethemixsupplysensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
MIX SUPPLY SENSOR SHORT CIRCUIT ERRORDuetoashortcircuit,thecontrolisunabletoreadtheMixSupplySensor082onterminals15and16.Thecontrolstopsoperationanddoesnotprovideanyheat.Checkthesystemsupplysensorwireforshortcircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacethemixsupplysensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
BOILER SENSOR OPEN CIRCUIT ERRORDuetoanopencircuit,thecontrolisunabletoreadtheBoilerSensor082onterminals16and17.Whenapplicationmodeissettoboilerorboiler+mixthecontrolstopsoperation.Inallotherapplicationmodes,thecontrolcontinuestoheatthesnowmeltingsystembutdoesnotcontroltheboileroperatingtemperature.Checktheboilersensorwireforopencircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacetheboilersensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
BOILER SENSOR SHORT CIRCUIT ERRORDuetoashortcircuit,thecontrolisunabletoreadtheBoilerSensor082onterminals16and17.Whenapplicationmodeissettoboilerorboiler+mixthecontrolstopsoperation.Inallotherapplicationmodes,thecontrolcontinuestoheatthesnowmeltingsystembutdoesnotcontroltheboileroperatingtemperature.Checktheboilersensorwireforshortcircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacetheboilersupplysensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
SLAB SENSOR OPEN CIRCUIT ERRORDuetoanopencircuit,thecontrolisunabletoreadtheSlabSensor072or073onterminals7and10.IdlingandstormaredisabledandenergysavingfeaturessuchasWarmWeatherShutDown(WWSD)andColdWeatherCutOff(CWCO)areoperatedusingtheoutdoortemperatureonly.Checktheslabsensorwireforopencircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacetheslabsensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.Iftheslabsensorhasbeenintentionallyremoved,settheslabsensorsettinginthesystemsetupmenutooff.
SLAB SENSOR SHORT CIRCUIT ERRORDuetoashortcircuit,thecontrolisunabletoreadtheSlabSensor072or073onterminals7and10.IdlingandStormaredisabledandenergysavingfeaturessuchasWarmWeatherShutDown(WWSD)andColdWeatherCutOff(CWCO)areoperatedusingtheoutdoortemperatureonly.Checktheslabsensorwireforshortcircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacetheslabsensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
SNOW SENSOR YELLOW WIRE OPEN CIRCUIT ERRORDuetoanopencircuit,thecontrolisunabletoreadtheyellowwireconnectedtotheSnow/IceSensor090or094,ortheSnowSensor095onterminals7and9.Thecontrolcannolongerautomaticallydetectsnoworice,butmanualstartofthesnowmeltingsystemisstillavailable.Checkthesnow/icesensororsnowsensoryellowandblackwiresandanywiresplicesforopencircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacethesensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
SNOW SENSOR BLUE WIRE OPEN CIRCUIT ERRORDuetoanopencircuit,thecontrolisunabletoreadthebluewireconnectedtotheSnow/IceSensor090or094,ortheSnowSensor095onterminals7and8.Thecontrolcannolongerautomaticallydetectsnoworice,butmanualstartofthesnowmeltingsystemisstillavailable.Checkthesnow/icesensororsnowsensorblueandblackwiresandanywiresplicesforopencircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacethesensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
SNOW SENSOR BLUE WIRE SHORT CIRCUIT ERRORDuetoashortcircuit,thecontrolisunabletoreadthebluewireconnectedtotheSnow/IceSensor090or094,ortheSnowSensor095onterminals7and8.Thecontrolcannolongerautomaticallydetectsnoworice,butmanualstartofthesnowmeltingsystemisstillavailable.Firstcheckthesnow/icesensororsnowsensorfordirtordebris.Theringstructureofthesensormayneedcleaningwithhotsoapywaterandanylonbrush.Rinsewithwater.Second,checkthesnow/icesensororsnowsensorblueandblackwiresandanywiresplicesforshortcircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacethesensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
Error Messages (2 of 4)
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Description
SNOW SENSOR BROWN WIRE OPEN CIRCUIT ERRORDuetoanopencircuit,thecontrolisunabletoreadthebrownwireconnectedtotheSnow/IceSensor090or094onterminals7and10.IdlingandStormisdisabledandenergysavingfeaturessuchasWarmWeatherShutDown(WWSD)andColdWeatherCutOff(CWCO)areoperatedusingtheoutdoortemperatureonly.Checkthesnow/icesensorbrownandblackwiresforopencircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacethesensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
SNOW SENSOR BROWN WIRE SHORT CIRCUIT ERRORDuetoashortcircuit,thecontrolisunabletoreadthebrownwireconnectedtotheSnow/IceSensor090or094onterminals7and10.IdlingandStormisdisabledandenergysavingfeaturessuchasWarmWeatherShutDown(WWSD)andColdWeatherCutOff(CWCO)areoperatedusingtheoutdoortemperatureonly.Checkthesnow/icesensorbrownandblackwiresforshortcircuitsaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacethesensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
SNOW/ICE SENSOR ERRORThecontrolisunabletoproperlydetecttheSnow/IceSensor090or094onterminals6,7,8,9and10.Thecontrolcannolongerautomaticallydetectsnoworice,butmanualstartofthesnowmeltingsystemisstillavailable.Checkthesnow/icesensorbrown,yellow,redandblackwiresaccordingtothesensorinstallationmanual.Itisimportanttocheckanycablesplicesforloosewiringconnections.Itmaybenecessarytoreplacethesensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
SNOW SENSOR ERRORThecontrolisunabletoproperlydetecttheSnowSensor095onterminals6,7,8,and9.Thecontrolcannolongerautomaticallydetectsnowbutmanualstartofthesnowmeltingsystemisstillavailable.Checkthesnowsensoryellow,redandblackwiresaccordingtothesensorinstallationmanual.Itmaybenecessarytoreplacethesensor.Oncetheerrorhasbeencorrected,theerrormessageautomaticallyclears.
Error Messages (3 of 4)
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Symptom Look For... Corrective Action
Touchscreen is off Power to control Useelectricalmetertomeasure115V(ac)voltageoninputpowerLandN
terminals.
System pump always on Display shows Idle Idleoperationrequiresthatthesystempumpoperatecontinuouslywhilebelowthe
meltingtemperaturesetting.
Blue short Dirt or salt on snow/ice sensor
Thesnow/icesensorrequiresregularcleaning.Avoidusingroadsaltonthesnowmeltingslab.
Slab is above melt temperature
Slab Target Theslabisheatedtotheslabtarget.
System running with no snow
System is Idling IdlingheatstheslabwhenthetemperaturefallsbelowtheIdletemperature.
System is MeltingDuringcoldweathercutoff(CWCO),thesystemisshutoff.Ifitshutsoffduringameltcycle,thesystemresumesmeltingoncetheoutdoortemperatureisaboveCWCO.
Remaining Run Time Systemmanuallystarted.
Slab and Slab Target
Theslabmustreachtheslabtargettemperatureinorderforthesystemtoshutoff.Lowerthecoldweathercutoff(CWCO)orincreasetheboileraquastatsetting.
Snow on slab but system did not start
System is Off Systemhasbeenmanuallystoppedandtheautomaticsnow/icesensorneverdried,therebypreventingthesystemfromautomaticallystarting.
Frequently Asked Questions
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: Watts.com/prop65
670_D - 10/16 48 of 48 © 2016 tekmar
Tel: (250) 545-7749 • Fax: (250) 984-0815 tekmarControls.com
All specifications are subject to change without notice
Limited Warranty The liability of tekmar under this warranty is limited. The Purchaser, by taking receipt of any tekmar product (“Product”), acknowl-edges the terms of the Limited Warranty in effect at the time of such Product sale and acknowledges that it has read and understands same.
The tekmar Limited Warranty to the Purchaser on the Products sold hereunder is a manufacturer’s pass-through warranty which the Purchaser is authorized to pass through to its customers. Under the Limited Warranty, each tekmar Prod-uct is warranted against defects in workmanship and materials if the Product is installed and used in compliance with tekmar’s instructions, ordinary wear and tear excepted. The pass-through warranty period is for a period of twen-ty-four (24) months from the production date if the Product is not installed during that period, or twelve (12) months from the documented date of installation if installed within twenty-four (24) months from the production date.
The liability of tekmar under the Limited Warranty shall be limited to, at tekmar’s sole discretion: the cost of parts and labor provided by tekmar to repair defects in materials and / or workmanship of the defective product; or to the exchange of the defective product for a warranty replacement product; or to the granting of credit limited to the original cost of the defective product, and such repair, exchange or credit shall be the sole remedy available from tekmar, and, without limiting the foregoing in any way, tekmar is not responsible, in contract, tort or strict prod-uct liability, for any other losses, costs, expenses, inconveniences, or damages, whether direct, indirect, special, secondary, incidental or consequential, arising from ownership or use of the product, or from defects in workmanship or materials, including any liability for fundamental breach of contract.
The pass-through Limited Warranty applies only to those defective Products returned to tekmar during the warranty period. This Limited Warranty does not cover the cost of the parts or labor to remove or transport the defective Product, or to reinstall the repaired or replacement Product, all such costs and expenses being subject to Purchaser’s agreement and warranty with its customers.
Any representations or warranties about the Products made by Purchaser to its cus-tomers which are different from or in excess of the tekmar Limited Warranty are the Purchaser’s sole responsibility and obligation. Purchaser shall indemnify and hold
tekmar harmless from and against any and all claims, liabilities and damages of any kind or nature which arise out of or are related to any such representations or war-ranties by Purchaser to its customers.
The pass-through Limited Warranty does not apply if the returned Product has been damaged by negligence by persons other than tekmar, accident, fire, Act of God, abuse or misuse; or has been damaged by modifications, alterations or attachments made subsequent to purchase which have not been authorized by tekmar; or if the Product was not installed in compliance with tekmar’s instructions and / or the local codes and ordinances; or if due to defective installation of the Product; or if the Prod-uct was not used in compliance with tekmar’s instructions.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, WHICH THE GOVERNING LAW ALLOWS PARTIES TO CONTRACTU-ALLY EXCLUDE, INCLUDING, WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, DURA-BILITY OR DESCRIPTION OF THE PRODUCT, ITS NON-INFRINGEMENT OF ANY RELEVANT PATENTS OR TRADEMARKS, AND ITS COMPLIANCE WITH OR NON-VIOLATION OF ANY APPLICABLE ENVIRONMENTAL, HEALTH OR SAFETY LEGISLATION; THE TERM OF ANY OTHER WARRANTY NOT HEREBY CONTRACTUALLY EXCLUDED IS LIMITED SUCH THAT IT SHALL NOT EXTEND BEYOND TWENTY-FOUR (24) MONTHS FROM THE PRODUCTION DATE, TO THE EXTENT THAT SUCH LIMITATION IS ALLOWED BY THE GOVERNING LAW.
Product Warranty Return Procedure All Products that are believed to have defects in workmanship or materials must be returned, together with a written description of the defect, to the tekmar Representative assigned to the territory in which such Product is located. If tekmar receives an inquiry from someone other than a tekmar Representative, including an inquiry from Purchaser (if not a tekmar Representative) or Purchaser’s customers, regarding a potential warranty claim, tekmar’s sole obligation shall be to provide the address and other contact informa-tion regarding the appropriate Representative.
Limited Warranty and Product Return Procedure
Technical DataWiFi Snow Melting Control 670 Boiler & Mixing / ElectricLiterature 670_A,670_C,670_D,670_J,670_UControl Microprocessorcontrol.Thisisnotasafety(limit)control.Packagedweight 4.3lb.(1960g)Dimensions 6-5/8"Hx7-9/16"Wx2-13/16"D(170x193x72mm)Display 3.5",colortouchscreenEnclosure BluePVCplastic,NEMAtype1Approvals CSACUS,meetsclassB:ICES&FCCPart15Ambientconditions -4to122°F(-20to50°C),<90%RHnon-condensing,outdoorusepermittedwhenusedinNEMA3enclosurePowersupply 115V(ac)±10%,60Hz,20VARelays 230V(ac),5A,1/3hpBoilermodulatingoutput 0-10V(dc)500Ωminimpedance/4-20mA1kΩmaximpedanceInjectionmixingpump 230V(ac),2.4A1/6hp,fuseT2.5A250VFloatingmixingoutput 230V(ac),5AAnalogmixingoutput 0-10V(dc)500Ωminimpedance/4-20mA1kΩmaximpedanceManualmeltcall Shortor0-32V(ac)Communications WiFi802.11n,2.4GHz,WPA2encryptionMobileapp AppleiOS,AndroidSensors NTCthermistor,10kΩ@77°F(25°C±0.2°C)ß=3892
–Included OutdoorSensor070and2ofUniversalSensor082–Optional tekmartype:072,073,082,090,094,095
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