Installation & Operation Manual •...

© 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


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.

6of48© 2016 tekmar 670_D - 10/16

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


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.


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.


HEAT RELAYCurrentstatusoftheheatrelay.Conditions:ApplicationmodeissettoPWMZone,Boiler,MixingorBoiler+Mix.


ELECTRIC ENABLE RELAYCurrentstatusoftheelectricsnowmeltenablerelay.Conditions:ApplicationmodeissettoElectric.


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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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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


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


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


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.


SLAB SENSOR LOWRecordsthelowestmeasuredslabtemperaturesincethecounterwaslastreset.Conditions:AvailablewhenSnow/IceSensorissettoIn-slaborSlabSensor=On.


OUTDOOR HIGHRecordsthehighestmeasuredoutdoorairtemperaturesincethecounterwaslastreset.Conditions:Alwaysavailable.


OUTDOOR LOWRecordsthelowestmeasuredoutdoorairtemperaturesincethecounterwaslastreset.Conditions:Alwaysavailable.


BOILER HIGHRecordsthehighestmeasuredboilertemperaturesincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeissettoBoilerorBoiler+Mix.


BOILER LOWRecordsthelowestmeasuredboilertemperaturesincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeissettoBoilerorBoiler+Mix.


MIX SUPPLY HIGHRecordsthehighestmeasuredmixtemperaturesincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeissettoPWMZone,MixingorBoiler+Mix.


MIX SUPPLY LOWRecordsthelowestmeasuredmixtemperaturesincethecounterwaslastreset.Conditions:AvailablewhenApplicationModeissettoPWMZone,MixingorBoiler+Mix.


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


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)


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


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

28of48© 2016 tekmar 670_D - 10/16

tekmarNet Menu


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


AWAY SCENE SelectifthecontrolshouldacceptorignoretheawaycommandfromthemobileapporfromatekmarNetsystem.Conditions:Alwaysavailable.

OfforOnDefault=On Installer

TN4 SYSTEM PUMP SelectifthesystempumplocatedonthetekmarNetSystemControlshouldoperatewhenthesnowmeltzoneisheating.Conditions:Availablewhenthe670isconnectedtoothercontrolsusingtekmarNetcommunication.

OfforOn Installer

© 2016 tekmar 670_D - 10/1629of48

Toolbox Menu


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

32of48© 2016 tekmar 670_D - 10/16

MyDevicesListsallthedevicesatalocation

Home/Away• Togglesalocationbetween

homeandaway.• Selectingawaysavesenergy

bypermanentlyshuttingoffthesnowmeltsystem.

• Thermostatsoperateatenergysavingtemperatures.

DeviceNameTakesyoutotheadjustmentpageforthedevice.

LocationsChangetodifferentlocations.

AddMoreLocations

AddMoreDevices

AccountTakesyoutotheaccountpage.

[email protected]

[email protected]

555-555-5555

YourName

Edityouraccountdetails:• Firstandlastname• Emailaddress• Phonenumber

Changethetemperatureunits.

Logoutoftheapp

Account

My Devices

© 2016 tekmar 670_D - 10/1633of48

Providescontrolstatus:• SystemisOff• SystemisMelting• StormPredicted• SystemisIdling• SysteminOverride

Viewruntimeenergyusage

Togglebetweendailyandmonthlyenergyusageviews.

Numberofhoursthesnowmeltingsystemisoperating.

BacktoMyDevices

Backtocontrolpage

• Editdevicename• Deletedevices

• Presstostartmelting• Presstostopmelting• GreyedoutwhenoffforWarm

WeatherShutDownorColdWeatherCutOut

Control Operation

Energy Usage

34of48© 2016 tekmar 670_D - 10/16

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.

© 2016 tekmar 670_D - 10/1635of48

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


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


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

© 2016 tekmar 670_D - 10/1637of48

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.

38of48© 2016 tekmar 670_D - 10/16

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

© 2016 tekmar 670_D - 10/1639of48

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.


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.


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:

© 2016 tekmar 670_D - 10/1645of48

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

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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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