TemperZone TZT-701 User guide

TZT-701 Thermostat
InstallerManual
Edition1.20608

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ConsiderableefforthasbeenmadetoengineertheTZT-701thermostat systemsothatit isintuitive,reliableandeasytoinstall.
Usingacommonsenseapproachtotheinstallationwillensuretheproductisinstalledefficientlyandtothecustomer’s
satisfaction.Pleasereadand understandthisinstructionmanual priortocommencing installationtoensurethebestoutcomesfor
allconcerned. Thismanualistobeusedinconjunctionwiththe“UserManual”.
temperzoneItemDescriptionsand PartNumbersforeachcomponent oftheTZT-701
Thermostatsystemcanbefound attheend ofthis document.
Installation
As withanyairconditioningprojectundertaken,carefulinstallationisthekeytoasuccessfuloutcome.Timetakenduringthis
installationprocess will berewardedbyahappycustomerand fewercall-backs.
ThestepsrequiredtoinstalltheTZT-701 thermostatare:
1. Readandunderstand thismanual.
2. SettheDIPswitchesandFaultLogicswitchontheMainPCB tosuit theproject/userrequirements.
3. Wirethewallcontrollerandoptionalremotetemperaturesensor(s)tothemainPCB.
4. Wirethezone/outsideairdamperstothemainPCB.
5. Poweruptheairconditioning system.
6. Settheinstallersoftwareoptions(ifrequired).
7. Programandsetupthewallthermostat.(TheUserManualwillassistwiththis).
8. Commissioning-Testingtheheating, coolingand otherfunctions.
Forconvenience thelayoutof thismanual isinthesameorderasthestepslistedabove
SettingtheDIPswitches
IfthetemperzoneTZT-701maincontrolPCBwasfactoryfitted,controlwiring andswitchselectionsshouldhavebeenpre-set
priortodispatchand switches1to5shouldnotneedfieldadjustment. Settingof DIPswitches6to8arealwaysup totheinstaller
tosetbecausetheydeterminehowtheend-userisgoingtooperatethethermostat.Ifretrofitting aTZT-701,theInstalleris
responsibleforsetting alltheDIPswitchestosuittheunitconfigurationandthecustomer’srequirements.
SettingtheFaultLogicswitch
LocatednexttotheDIPswitchesistheFault Logicswitch.Itisvitalthat yousetthistosuit theoperationof theTWO“Fault /
Occupancy”inputsontheTZT-701.Therearetwoinputs–“FaultC”and “Fault V”.Readmoreabouttheseinputsonpage10 of
thismanual. IfyouarenotconnectinganythingtoeitheroftheseinputsthentheFault Logicswitchshouldbeinthe“A”position
(i.e.totheleft)otherwisetheGreenSystemOK LEDwillnotilluminateand thethermostatwill notruntheunit.
N.B. IfretrofittingtheTZT-701 toaunit,asuitable weather-prooflocationmustbechosentomounttheMainPCB
(TZT-701ME,orTZT-701BB plusTZT-701TR)sothat itisnotexposedtorainormoisture spray.Itshouldalsobeinan
electricallysafesituationtoavoiddangertobuildingoccupants. Normallyintheceilingcavity, orneartheIndoorunit.
(Thedrawingonpage3shows thelocationof theFunctionSelectionDIPswitchesonthemainPCB.)
NormallyFactorySet
(Not recommendedtobealtered)
SW1- FanSpeedSelect
SwitchOn=3speedFanRelayG1=Low, G2=Med, G3=High
SwitchOff=SingleSpeedFan. RelayG1only(RelaysG2&G3arenotused)
SW2- TZT-701ControlMethod.(ThisswitchshouldalwaysbeON)
ReverseCycle Systemcontrolmethod.
SW3- EquipmentStages
SwitchOn=Multi-stageequipmentcontrol
SwitchOff=SingleStageequipmentcontrol(Y2&W2outputsdisabled)
SW4- RVMode (ThisswitchshouldalwaysbeON)
SwitchOn=RevisingValve (W1/OBrelay)energisesinHeatMode. (B)
SW5CompressorAnti-RapidCycleDelayTimer
SwitchOn=4MinDelayonbreaktimer(anti-rapidcycle).
SwitchOff=Anti-RapidTimeDelayOff

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InstallerSelectable
SW6 -Thermostat Mode
SwitchOn=Programmable(See “UserManual”page7forResidential,orpage10forCommercial)
SwitchOff =Manual(See “UserManual”page12)
SW7 -ZoningMode(See “UserManual”page6regarding Commonzoningfeatures,
SwitchOn=Zoningenabledpages7and9regardingResidentialzoning,
SwitchOff =Zoningdisabledpages10and12 regarding Commercialzoning,
andpage14 regardingZoneControlgenerally.)
SW8 –DailyEvents
IfSwitch6=ON (Programmablethermostatmode)
Switch8On=ResidentialProgramming.4eventsperday(Wake/Leave/Return /Sleep)
(See “UserManual”page8)
Switch8Off =CommercialProgramming. 2eventsperday(Start/Stop)
(See “UserManual”page10)
IfSwitch6=OFF (Manualthermostatmode)
Switch8On=2Individualset pointgroups(Day&NightManualMode)
(See “UserManual”page13–“Day/NightSetpoints”)
Switch8Off =1eventManualMode
(See “UserManual”page13–“Day/NightSetpoints”)
Wiring
AnoverallviewoftheTZT-701BB inputandoutputwiring hasbeenprovidedbelow.
Backupbattery.
Abackup batteryisprovidedinsidetheWall Controller. TheONLYfunctionofthisbatteryistokeeptheclockrunning duringa
poweroutage. Thebatterylifeistypically8-10 yearsinnormalservice.Replacementbatteriescanbeobtainedfrommostbattery
suppliers.Thebatteryisa-Lithium3VCoincell,typeCR1220.

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Mountingthewall controller
TheTZT-701canonlybeasaccurateasthetemperaturesensorfittedtothewall controller,oritsoptionalremotetemperature
sensor(s)permit.Itisthereforeessential that thewall controllerbeinstalledinalocationthatistypical oftheambientroom
temperature. Donotinstallthewallcontrollerinadraft, nearafloor, behinddoorsoronanon-insulatedexternalwall. Alsoavoid
placingthewall controllerinareaswheretheairmovementislimited,affectedbydirectsunlightorotherareasnot“typical”of
thetemperatureof theroom.
Further,whenmounting theTZT-701WCbeawarethat draftsmaytraveldownthe
insideofcavitywalls, (especiallyifmountedonexternal walls)andenterthebackofthe
wall controllerorsensorenclosurethroughthecableentryholesinthewall.Itis
importanttofullyseal theseholestopreventanydraftsaffectingtheinternallymounted
temperaturesensor.ItisrecommendedtomounttheTZT-701 orremotesensors
approximately1.5to1.7metresfromthefloorwherepossible.
Place the“CommunicationCable”andany“RemoteTemperatureSensor”wires,if
applicable(seethebottomsectiononthispage),throughthelargeopeninginthe
thermostat baseplate.Thenplace thethermostatbaseonthewall andusingappropriate
screws, firmlyattachthebasetothewall.Sealanyholeswherecablesenterthebackof thethermostat.
TheTZT-701wallcontrollermustbewiredtothemainPCBfittedintheairconditionerusing4corescreenedcable ONLY.
temperzonecableP/N201 000 033 (10mlong) and201000034 (20mlong) isrecommendedforthiswiring. Thescreenonthe
cablemustbegroundedatoneend only(normallyatthe“MainBoard”end)toeliminatenoisecorruptingthedatastream.
Maximumcablerunisrealisticallylimitedtoacableloopresistance of20 ohms.
Thisworksouttobeaproximately150 metreswhenusingthesamegaugecableas
temperzonesuppliesinthe10mand20mlengths.Theabsolutemaximumcablerun
usingalargercross-section4-corescreenedcableis1,000 metres.
Wheneachconductorof the“CommunicationCable”isterminatedinthenumbered
screwterminal connectorsattachedtothewall controllerbackplate,and the
“RemoteTemperatureSensor”wires(ifapplicable)havebeenconnectedtothe
“TT”labelledterminals,thewallcontrollercanbeassembled.
Ensurethefold-downbuttoncoverisattachedtothefrontoftheTZT-701 (soyouhavethetworemainingpiecesattached
together,theplasticlidandthewallcontrollercontainingtheLCDandelectronics).Alignthetopthethermostat(withthefold-
downcoverattached) sothat themounting lugsonthetopofthethermostat matewiththeholesinthetopofthebaseplate.Swing
thelowersectionof thewall controllerontothebase(screwedtothewall)untilitclipssecurelyclosed.
Take notethattheinternallymountedroomsensordoesnotjambetweenthetwocasehalveswhensnappingthecasetogether-
thismaydamagethetemperaturesensor.
Usingaremotetemperaturesensor
Ifusingaremotetemperaturesensor(P/N201 000 044TZT701- RS1Single
Sensor,orP/N201 000 045TZT701-RS2Dual Sensorversionsareavailable)
ratherthantheonefactory-fittedinsidethewall controller,attachthetwin
conductorcabletothissensor, totheterminalsmarked“TT” inthewall controller
baseplate.TheTZT-701 willautodetectthissensoranddisabletheonboard
temperaturesensorinsidethewall controller.
Commonfigure“8”(ELVTwin0.2mm2to0.5mm2)cable issuitableprovidedthesensorrunsarenotextraordinarilylong
(>30m),andthattheydon’trunpasthighvoltagecableorelectricallynoisyenvironments.temperzonesuppliessuitablewirein
severallengths,1.5m(P/N201000046),6m, (P/N201 000 047),12m(P/N201 000 048),and25m(P/N201000049).
As thewall controller“Autodetectsthisremotesensorandusesit whenavailable,
placinganOn/Off switchinlinewiththeremotesensorpermitsittobeturnedOn
orOfffromaremotelocation.Forexample,theTZT-701 wall controllermaybe
mountedinanofficereceptionwitharemotetemperaturesensormountedina
boardroom. Thisenablesswitchingthetemperaturesensing locationsbetweenthe
boardroomandreceptionwithaninlineswitch.
Multipleremotesensorscanbeusedwherethetemperatureaveragingof alarger
areaisrequired.AcombinationofourTZT701-RS1andTZT701-RS2sensors
mayberequiredtosatisfycomplexsensor“averaging”configurations.
Moreexamplesof sensorsconfigurationsaregivenonpage12.
Wallcontroller“Communication
Cable”wiringschedule
WallController MainPCB
1 1
2 2
3 3
4 4

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Anoteregardingsuitablesensors
The“sensor”partnumbersgivenintheprevioussectionrelating to“RemoteSensors”andthefollowingsectionregarding
“Zoning”,refertosensorswhicharehousedinaplasticbox, suitableformountingonawall inavisiblelocation.Thisisbrought
toyourattentioninthepartnumbertableattheendof thisdocument.
Howeveryoumaynotneedtomountthesensorinavisiblelocation. YoumaysimplywantasensorprotrudingintoaReturnAir
ductinwhichcaseyouprobablydon’twantorneedtheplasticbox.Ifthisisthecase,youcanexchangetheTZT-701RS1
RemoteSensor(P/N201 000 044),foreitherthe2mor5mBareSensorsshowninthePartNumbertable.Thesesensorsare
housedincopperbulbswithwireof thespecifiedlengthalreadyattached.Thefixedwirecanbeextendedusinganyof theSensor
leadsshowninthetable(plusaconnectorblocktojointhem)aftercuttingoffthefactory-fittedplug.
Zoning
Note:-Zonecontrolfunction cannotbeusedwhentheOutsideairfunction isused.
Dipswitch#7MUSTbeON forzonecontroltooperate.
TheTZT-701 iscapableof activelycontrollingtwoseparatetemperaturecontrolledzones. TheoptionalZone
2temperaturesensorisrequiredifthesecondzoneistobetemperaturecontrolled.Theoptional Zone2
sensoristemperzoneP/N201 000 044.Youwill alsorequiresometwinELVwireasmentionedinthe
sectiononthepreviouspageregarding“UsingaRemoteSensor”.ThetemperzonePartNumbersof various
lengthsof suitablewireareshownat theend of thisdocument.Thezonetwotemperaturesensorisconnected
totheZ2terminalsonthemainPCB. Ifthissensorisfittedcorrectlyandthezoningfunctionhasbeenturned
on(SW7=On)thezonetwotemperaturewillbedisplayedontheLCD.
TheLCDwill showwhichzoneisactiveand alsotheZone2temperatureiftheoptional Zone2sensorhas
beenfitted.
TochangetheactivezonetaptheOn/Off buttontocyclethroughZone1only,Zone2onlythenbothZones.
Youarenotabletoclosebothzonessimultaneously.
StatusLED’sareprovidedonthemainPCBtoshowwhichzonesareopen.
Thezonedamperrelaycontactrating [e-mail]
permittedtowiremultiplezonedampersinparallelifrequiredprovidedthecontact
rating isnotexceeded.Note.Somebrandsof zonedamperscannotbewiredin
paralleldueto“damperfeedback”.Damperfeedbackwill causethedampersto
continuallymoveopenandclosedregardless of theTZT-701 relaystatus.Check
withyourdamperproviderthatthedamperchosenissuitableforparallelconnection.
TheTZT-701activezoningfunctionwillopenand closezonedampersandturn
heatingandcoolingonoroffasrequiredtoensurethatallzonesthat areon, arekept at
theirdesiredtemperature.TheTZT-701 doesNOTsimplyaveragezone
temperaturesresulting inarea’sthataretoo hotorcool.
As aconsequence ofthisadvancedzonemanagementmethodtheremayseemtobeunusual delaysbeforeheatingorcooling
starts.TheTZT-701 hastimedelaysinplace thatprovideadequatetimeforzonedamperstomovetotheircorrectpositionprior
tostarting theheatingorcooling.Whencommissioningthezoning systempatience mayberequiredassomedelaysareup to4
minutesinlengthtogivezonedamperstimetomove, andfor run-ondelaystoexpire.
OutsideAirEconomyfunction
Note:-OutsideAirEconomyfunctioncannotbeusedwhenthezonecontrolfunctionisused.
Dipswitch#7MUSTbeOFF fortheEconomyfunctiontooperate.
TheTZT-701 hasanintegratedoutsideaireconomyfunctionthat whenused, will takeadvantageofcooleroutsideairtocoolthe
building.Theoptionaloutsideairtemperaturesensorwillberequired-temperzoneP/N201000 044.
TheZone1&Zone2dampersareusedtocontroltheoutsideaireconomydampers.
Toactivatetheoutsideaireconomyfunction
1. Turn Dipswitch#7 toOFF (Zoning disabled)
2. Fit therequiredoutsideairtemperaturesenortothe“OA”terminalsonthe
mainPCB.
3. EntertheInstallermenu andsetthe“EC”functionto“On”.See theinstaller
menuonpage9formoreinformationonsettingthisfunction.
(Note:Youcannotcompletestep3ifsteps1&2arenotalreadydone.)

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Ifeconomymodeisused,thefollowing4statesof coolingcanexist.
CoolingNOTrequired
InsideDamperisOpen.
OutsideDamperisClosed.
CompressorsOff.
Fanassetbyuser. (OnorOff).
NormalCooling -Outsideairisless than2°Ccoolerthantheinsideairtemperature.
InsideDamperisOpen.
OutsideDamperisClosed.
Compressorsrun.
Fanrunning.
“Cooling”isshownintheLCD.
Stage1Economy- Outsideairisleast2°Ccoolerthantheinsideairtemperature.
Insidedamperclosed.
Outsidedamperopen.
Compressorsrun.
Fanrunning.
“Cooling”&“Economy”isshownintheLCD
Stage2Economy- Outsideairisleast6°Ccoolerthantheinsideairtemperature.
Insidedamperclosed.
Outsidedamperopen.
CompressorsOFF.
Fanrunning.
“Cooling”&“Economy”isshownintheLCD
[e-mail]tiplezonedampersinparallelif
required, suchasaindoorreliefdamperprovidedthiscontact ratingisnotexceeded.
Note:Somebrandsof zonedamperscannotbewiredinparalleldueto“damperfeedback”.Damperfeedbackwill causethe
damperstocontinuallymoveopenand closedregardless oftheTZT-701 relaystatus. Checkwithyourdamperprovidertoensure
suitabilityforparallel connectionbeforeusingadamperinthisway.

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AdvancedInstallerSoftwareFunctions.
Note:- In almostallbutafewcaseswillthefunctions inthismenuneedtobealteredfrom theirdefaultstate.
TheTZT-701 hasaPINprotectedmenu that permitstheinstallerto“finetune”theTZT-701 forthespecificrequirementsofthe
installationortoenable/disableadvancedfunctionsasrequiredfortheproject.
EnteringInstallerMode
Ifnotalready, turn theTZT-701onwiththeOn/Off Button.
Next,press andhold theModebuttonfor30 seconds.After30 secondstheTZT-701WCLCDwillshow“88:15”.Usingthe(p)
ordown(q)buttonsadjustthisnumbertoshow“88:21”(factorydefault)ortothePINvaluethatyouhavepreviouslyset.
TaptheModebutton. Ifthe2digit PINhasbeenenteredcorrectlytheLCDwill showthefirstmenuitemintheinstallermenu. If
thePINisincorrect youwill beexitedfromthismenu.
Whenintheadvancedinstallermenuyouwill beautomaticallyexitedifnobuttonsarepressedfor60 seconds.
Themenuitemsareshownintheirorderofappearance below.Tappingthemodebuttonwill advance youthroughthemenu
options.Tapping orholdingtheup (p)ordown(q)buttonspermitthevaluestobeadjusted.Thefactory-setdefault valuesfor
each“AdvancedInstaller”parameterareshownintheexamplesfollowing:
PN=21SetPin
ThisisthePINtoenterinstallermodeinfutureattempts.Thismenu itempermitstheusertosettheirownPINiftheydonotwish
tousethefactorydefault PINof 21.
Caution-
IfthisPIN valueischangedand forgottenyouwill notbeabletore-entertheInstallermenuand
thewall controller mustbereturnedtotemperzoneorapprovedservice centretobeunlocked.
Theremay beafeeforthisservice.
LC=00 KeyboardLock
TheTZT-701 isfittedwithakeyboardlocktopreventunauthorisedtampering.Whenthekeyboardlockisactivethepadlock
symbolwill bedisplayedontheLCD.Whenalockedbuttonhasbeenpressedthepadlockwill flashtoinformtheuserthedesired
functionhasbeenlocked.
LC=00KeyboardLockOFF
LC=01KeyboardLockON Level1
LC=02KeyboardLockON Level2
Level1Lock
In Programmablemode-AllTZT-701buttonsarelocked.
In Manualmode-allTZT-701buttonsEXCEPTtheon/offbuttonarelocked.
Level2Lock
In Programmablemode-AllTZT-701buttonsEXCEPTtheON/OFF buttonarelocked.
InManual mode-all TZT-701 buttonsEXCEPTtheON /OFF andtemperatureup (p)orTemperaturedown(q)
buttonarelocked.
Td=00 Temperature Display Mode
TheTZT-701 canhidethecurrentroomtemperatureifrequiredandonlydisplaythesettemperatureforthecurrentoperational
mode.IftheTZT-701 isheating,orthelastmodewasheatingtheTZT-701 will onlydisplaytheheating settemperature(Not
currentroomtemperature). IftheTZT-701 iscooling, orthelastmodewascoolingtheTZT-701 will onlydisplaythecoolingset
temperature(Notcurrentroomtemperature).
TD=00= TheTZT-701will displayboththeRoomTemperature&SetTemperature
TD=01= TZT-701willdisplaysettemperatureonly.
C1=00 Zone1CalibrationFunction
TheTZT-701 mainzonetemperaturesensorisextremelyaccurateand assuchit shouldneverneedtobecalibrated.You should
exhaustall otherexplanationsforperceivedtemperatureinaccuraciesbeforemakinganyadjustmentstotheTZT-701 temperature
sensor.Therangeof adjustmentis+/-3c

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C2=00 Zone2CalibrationFunction
TheTZT-701zonetwotemperaturesensorisextremelyaccurateandassuchitshouldneverneedtobecalibrated.Youshould
exhaustall otherexplanationsforperceivedtemperatureinaccuraciesbeforemakinganyadjustmentstotheTZT-701 temperature
sensor.Therangeof adjustmentis+/-3c
AO=01AnalogueOutputSpan
Thisparametercontrolsthetemperaturespanoverwhichthe“Cool” and“Heat” analogoutputstraversethe0-10Vrange.
CF=C DisplayUnits
ThissetstheTZT-701displayunitsasCelsius“C”orFahrenheit“F”forall usermenu’sandmostinstallermenus.
CT=00ManualCountDown TimeValue
Note:Thisfunctiononlyoperatesinmanualmode(SW6=Off)
TheTZT-701canbesettoautomaticallyswitchtheairconditioningoffinCT=XX hours, adjustablefrom0to8.
Thisfeatureisusefulininstallationswheretheairconditioningshouldonlyrunforalimitedtime,orwhereanareaisused
infrequently–suchastrainingroomsforexample.TheinstallercansetanAutoOfftime,sothat “XX”hoursaftertheTZT-701
isturnedonitwillautomaticallyswitchitselfoffagain.Adjustmentrangeis0to8hours(00=Countdowntimerfunctionisoff).
HL=30HeatingLimitSetpoint
TheTZT-701 canlimitthemaximumpermittedheatingsettemperatureifrequired. Thismayreduce energycostsbytheinstaller
settingrealisticvalues. WhentheusersetstheHeatingtemperaturethat equalstheHL=XX valuethepadlocksymbolontheLCD
will flashindicating themaximumpermittedheatingsettemperaturehasbeenreached.Therangeis00(off)~30c
CL=15 CoolingLimitSetpoint
TheTZT-701 canlimittheminimumpermittedCoolingsettemperatureifrequired. Thismayreduce energycostsbytheinstaller
settingrealisticvalues. WhentheusersetstheCoolingtemperaturethat equalstheCL=XX valuethepadlocksymbolontheLCD
will flashindicating theminimumpermittedcooling settemperaturehasbeenreached.Therangeis15~37c(off)
SD=02 StageDelays
Thisvaluesetsthetemperaturedifference indegC(F)between1st &2nd stagesofheatingand cooling,and2nd &3rd stagesof
heating.Thisvalueisadjustablebetween1&3deg.
OS=00 AdaptiveRecovery. (OptimisedStart)
AdaptiveRecoveryoroptimisedstartcomparesthedifferencesbetweenthecurrentsetpoint,theroomtemperatureandthe
outsideairtemperature(ifOA sensorisfitted) todeterminethemostenergyefficienttimetostarttheheating,cooling orAir
conditioningsystemtoensuretheroomisattheset pointbytheeventstarttime.
OS=00=Optimisedstartisoff. (Theheating orcoolingwillstart(orstop) attheeventtime)
OS=01 =Optimisedstartison.(Theheating orcoolingsystemwill start(orstop) beforetheeventtimetoachievethe
desiredtemperaturebytheeventtime)(IfOutsideAirSensorFitted)
FO=02 IndoorFanOptions.
ThisfunctionisenabledonlywhenthefanmodeisFanOn.“FAN ON”will bedisplayedintheLCD.
TheTZT-701hasthecapabilitytocontroltheindoorfaninanumberof intelligentwaysdescribedbelow:
Option0 Thefanwillruncontinuously-100% of thetime, 24hoursaday7daysaweek.
(Note:Ifyouwantthefancyclingon&offwithheating orcooling cycles, setthefanmodeto“AutoFan”)
Option1. Thefanwillruncontinuouslywhileincoolingmodetoensurefreshairventilationandtoaidincooling
(i.ethefanwill continuetorunwhencoolingstops)butautomaticallychangemodestocyclethefanon
andoff whenthelastmodeisheating.(Thispreventspossiblecolddraftswhileheatingisnotactive).
Option2.
(Default). AvailableonlyiftheTZT-701 isinaProgrammableMode. TheFanwill RuncontinuouslyfromtheWake
(orStart)Programtothesleep(orStop) programandthenruninAUTOmodeovernighttomaintainthe
nighttimeset points.Thisensuresventilationduringdaytimeoccupiedhoursand quiet comfortovernight.
Option3. AvailableiftheTZT-701 isinProgrammableModeOnly.
Thismodeisthecombinationof option1andoption2describedabove.

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PZ=00 ZoneProgramming
Shoulditbedesired,theTZT-701will permittheusertoprogramzone(s)toautomaticallychangeatthesametimesasthe
variousdailyevents. Thiswillpermit theusertoprogramthesleepzonetoturn onwhenthesleepprogrambeginsforexample.
WhenthisfunctionisenabledtheTZT-701addsanextrasteptotheprogrammingsequence
PZ=00 = Programzonefunctionisoff.
PZ=01 = Programzonefunctionison.
FS=00 FanSpeedLimit
Note:Thisfunctiononlyoperateswhenzoning isenabled(SW7=On) andonlywhenthefanisset to3speedmode(SW1=On).
Toprotecttheducting,fanmotorsandotherpressuresensitivecomponents,ifrequiredtheinstallercandisabletheuseofhigh-
speedindoorfanwhenonlyonezoneison(Zone1orZone2).Thefancanruninhighspeedonlywhenbothzonesareon.
FS=00 = High-speedfananytime
FS=01 = High-speedfanonlywhenbothzonesareon. (LedZ1&Z2lit –BothonmainPCB)
Fn=0A EquipmentMode
TheTZT-701 cancontrolbothheatingandcoolingsystems.However, theremaybesituationswheretheTZT-701 istocontrola
Heatingonlysystem, oraCooling onlysystem. InthesecircumstancestheTZT-701 canbesettoheat onlyortocoolonlymodes
toeliminateuserconfusion.Intheheat orcoolonlymodeallreference tothenon-usedmodeisremovedfromthemodeselection
buttonandallprogramming andtemperatureselectingfunctionsetc.
In heatingonlymode, themodebuttontogglesbetweenheatandfanonly.
In coolingonlymode, themodebuttontogglesbetweencoolandfanonly.
Fn=A= Automode(BothHeating&Cooling control).
Fn=C= Coolonlymode(Heatingfunctionand optionsdisabled).
Fn=H= Heat onlymode(Coolingfunctionand optionsdisabled).
tC=12 ClockMode
TheTZT-701hasbotha12-hour,am/pm, ora24-hour militarystyleclock.
TC=12 = AM/PM clocktype
TC=24= Militarystyle24 hourclocktype.
FC=-- FaultCool
Thefunctionof theFaultInputs(FltC&FltV)canbechangedtobecomean“occupancyinput”.
FCisthecoolingtemperatureyouwishtomaintainwhentheFltCorFltVinputsareactive.
Rangeis35cto“—“(off)
FH=-- FaultHeat
Thefunctionof theFaultInputs(FltC&FltV)canbechangedtobecomean“occupancyinput”.
FHistheheatingtemperatureyouwishtomaintainwhentheFltCorFltVinputsareactive.
Rangeis“—“(off)to37c
FF=A FaultFan
Thefunctionof theFaultInputs(“Flt C”&“FltV”)canbechangedtobecomean“occupancyinput”
FF isthefunctionyouwishthefantoimplementwhentheFaultCorFaultVinputsareactive.
FF=0 = FanisOFF whenthefault/occupancyinputisactive.
FF=1= FanislockedtoLowspeedwhenthefault/occupancyinputisactive.
FF=2 = FanislockedtoMedspeedwhenthefault/occupancyinputisactive.
FF=3 = FanislockedtoHigh speedwhenthefault/occupancyinputisactive.
FF=A = FanislockedtoAutospeedwhenthefault/occupancyinputisactive. (Default)
DI=-- DeactivateIndoorfan(onHeatcycle)
TheTZT-701 willmonitorthefancoil temperatureand stoptheindoorfanwhenthefancoil temperaturefallsbelow27c.
However,ifrequiredthisvaluecanbeadjustedbysettingtheDI-XX valuetoyourpreferredtemperature.
EC=0F EconomyFunction
Economyfunctionpermitstheintroductionofoutsideairintoabuildingiftheoutsideairtemperatureiscoolenough toassist
withthecoolingof thebuilding.
EC=OF= EconomyfunctionOFF
EC=On= EconomyfunctionON
(Note:OnlyifoutsideairsensorisconnectedtotheOA terminals(onthemainPCB) AND Sw7=0ff (Zoningdisabled))

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AdditionalCapabilities
Fault/Occupancyinputs
Note:Thefaultlogicof theTZT-701is“Fail-Safe”.
AgreenLEDisfittedonthemainPCBand labelled“System OK”. IfthisLEDisnotlit, thenafault conditionexistsfromeither
ofthefaultinputsoraninternallydetectedTZT-701 fault.Whenafaultisdetectedthefaultrelaywill deactivateand theGreen
“SystemOK”LEDwillturn off.
TheTZT-701MainPCBisfittedwithtwoequipmentfaultinputs.Theseinputsaremarked“FltV”and“FltC”.
Ifeitherorbothof thesefaultinputsaretripped,thefollowingdefault1eventswilloccur
•All heating &cooling outputswillbesettoOFF
•Theindoorfanissettolowspeed. (Tomaintainventilation)
•TheonboardFAULTrelaywill turn OFF.
•Thegreen“SYSTEMOK”LEDonthemainPCBwillturn OFF.
•Theword“Fault”onthewallcontrollerLCDwillbevisible.
Thesefault inputscanbeusedtoautomaticallyshuttheairconditioningsystemdowninthefollowingcircumstrances.
•TheAirConditioningHP/LPlimithasbeenreached(BymonitoringtheHP/LPswitchstatus).
•Thewaterflowforawatersourcedheat pumphasfailed(By monitoringaflow/pressureswitch).
•Thecondensatetrayisfull(iffittedwithaliquidlevelswitch).
•Aphaseforthecompressorhasfailed(ifaphasefailrelayisfitted).
•Afireinputhasbeentrippedorotheremergencyshutdowneventhasoccured.
•Otherexamplesfortheuseof thefaultinputsinclude-Duct pressureswitches,remotetimeclockoverrideshutdowns,
DDCshutdownsignalsetc.
Thefunctioningoftheinputsaredescribedbelow:
FaultInputV(Voltage)
(24VAC.) “Flt V”isusedwhena“fault” issignalledbytheapplication(orloss)of a24VACsignal. TheTZT-701shutsdownwhenthisoccurs.
FaultInputC(Contact)
(Drycontact) “Flt C”isusedwhena“fault”issignalledbytheclosing(oropening) of avoltage-free,dry contactwheninthefaultcondition.
SW1, “FaultLogicSelect”onthemainPCBselectsthelogic ofthefaultinput, eitheranormalorfailsafefaultinput.
See thewiringexampleonpage3forthisswitchlocation
Position“A” Iftheswitchisinposition“A”theTZT-701willbeinfaultwhenfaultinput“V”
has24VACapplied toit, oriffaultinput“C”contactsareshorted.
Position“B” Iftheswitchisinposition“B”theTZT-701willbeinfaultwhen24VAChasbeen
removed fromfault input“V”orwhenanopencircuitisdetectedat faultinput“C”.
Occupancyinputs&Outputs
As discussedbrieflyabove, theTZT-701 faultinputfunctioncanberedefinedbychangingthree separateparametervaluesinthe
advancedinstallermenu.Thespecificparameters(FF,FHandFC)aredescribedonpage9of thismanual.
Whenthefault input(s)areactive,theFF (Fault fanspeedisselected),FH (fault heatingsetpointisused) and FC(fault cooling
setpointisused).
TheOccupancy/fault inputscanthenbeconnectedtoadoorkeyswitch, movementsensor,DDCbuildingmanagementsystem,
alarmsystem(forautomaticun-occupiedmodewhenalarmisarmed) ortoaremoteoverrideswitchthatwhentripped,will
substitutetheroomoccupantstemperaturesettingsfortheFF,FH&FCAdvancedinstallermenuvalues.Whenthisinputis
returnedtothenormalstate,sowill theuserset temperaturevalues.
StatusOutput.
[e-mail] energisewhenevertheTZT-701 is
operating afunctionof theairconditioningsystem.TherelaydoesnotoperateifpowerisappliedtotheTZT-701butthe
thermostatisnotcalling fortheAirConditionertorun.
Thisrelay’sprimaryfunctionistoprovidefeedbacktootherequipmentthattheheatingorcoolingsystemisinuse.Thiscanbe
usedasa“heart-beat”indicatorthatwilltriparemotealarmiftheheating orcoolingsystemhasnotbeenusedforapre-setperiod
oftime.Alternatively, thiscanbeconnectedtoanenergyconsumptiondataloggerforbillingpurposes.

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LCD Modeindicators/Diagnostics:
Compressorprotectiondelay.
Iftheword“Heat” or“Cool” flashesintheLCD,a4-minuteAnti-RapidCycledelayisinprogress. Heatingorcooling
callswillnotbeinitiatedduringthissafetylockoutperiod.
HeatingorCoolingrunning.
Theword“Heat” or“Cool” will changeto“Heating”or“Cooling”whentheairconditioning systemisactuallyheating
orcooling.
StageIndication.
Asmall“full stop”will appearontheend of theword“MODE”whenstage2heatingorcooling isbeingcalled.This
full stopwillflashwhenAuxiliaryheatingiscalled/required.
SpannerIcon
Theappearance of the“spanner”iconintheLCDindicatesaninternalTZT-701faulthasoccurred.Typicallyloss of
communicationbetweenthewallcontrollerandthemainPCB.
FAULT Iftheword“Fault”appearsintheLCD,anexternaldevice connectedtooneof thefaultinputsonthemainPCBhas
beenactivated.
Note: Theword“FAULT” isNOTshowniftheFF,FHorFCvalueshavebeensettoanoccupancyfunctionand the
fault inputisactive.
PadlockICON
Thepadlocksymbolwill beshownwheneverthekeyboardislocked. Ifalockedbuttonhasbeenpressed,orauser
controllimithasbeenreachedthepadlocksymbolwill flashtoremindtheusertheattemptedoperationisprohibited.
MainPCBIndicators&Functions:
Reversingvalvelogic
TominimisereversingvalveoperationstheTZT-701will keepthereversingvalveinitslastmodewhenthecompressors
stop.Forexample,whentheheating setpointisreachedthereversingvalvewill stayenergisedwhenthecompressor
stopsreadyforthenextheatingcall. Thereversingvalvewill onlychangemodeinthisexampleuntil justbeforecooling
isrequiredwhereitwillstayde-energisedwhenthecompressorstops.
Turning theTZT-701OFF atthewallcontrollerorthe240/off/24Vswitchwillde-energisethereversingvalve.
LEDindicators
All relaysontheTZT-701 areidentifiedbyprintingonthePCB. Toassistwithdiagnosticseachrelaycoil hasaLEDin
parallel sothatwhenarelaycoil isenergised,theassociatedLEDwill beon.
SystemOK indication
ThegreensystemOK indicatorwill belitwhenevertheTZT-701 isoperating normally.
PowerONindicator
AnilluminatedREDpower-onindictorsignalsthepresence ofpowerand showsthatthefuseontheTZT-701 mainPCB
isnotblown.
Zonesafetyrelay
WithSW7settooff(Zoneselect)theTZT-701 will keeponezonerelayonat all timestoprotectagainstaninstaller
forgetting toturn SW7toonafterwiringzonedamperstotheA/Csystem.

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SensorConfigurations
The“TT”“OA”or“Z2”inputsareabletoacceptmultiple temperaturesensorinputsratherthanjustasinglesensorifit is
necessarytoaveragethetemperatureoveralargerarea thanonetemperaturesensorcanaccommodate.Typical sensor
configurationsaredetailedbelow.
Note:Singleelement(P/N201000044)andtwinelementP/N201000045)sensorsmayberequired.
3sensoroptionnotrecommendedasthetwin-elementsensorhasthesameoverall influence ontheaveragetemperatureasthe
twosingle-elementsensorsinthesamecircuit.Inotherwords, ithastwice asmany“votes”aseachof thesinglesensors.
1x201000044 2 x201000045 1 x201000045plus
2x201000044 4x201000044
Testing&Setup
TheTZT-701 shouldberegardedasastandard thermostatforsetup andtesting.Asimplecommonsenseattitudeshouldbe
appliedtothetesting of thesystem
TotesttheHeatingsimplyraisetheheatingsetpointtemperatureabovetheroom(orzonetemperature)andensuringtheAir
conditioningstartsinheatmodeandrunssatisfactorily,verifythatwarmairisbeing producedanddirectedtotheappropriate
zoneasshownontheTZT-701 walldisplay. VerifythecorrectLEDS (asdeterminedbythemodesetup) areilluminatedoninthe
mainPCB. Thismayormaynotincludetestingthethree indoorfanspeedsinheatingmode(ifapplicable). Testingthecooling is
equallysimple,lowerthecoolingsetpointtemperaturetobelowthecurrentroomtemperatureand insuretheAirconditioning
startsincoolmodeandrunssatisfactorilyandchilledairisproduced.Thismayormaynotincludetestingthethree indoorfan
speedsincoolingmode.
Tip:-TheTZT-701LCDwillchangethewordHeat (orCool)toHeating(orCooling) whenheating orcoolingistakingplace.
Thefull stop“.“ontheendof theword“MODE” will becomevisiblewhentheTZT-701isdemanding2nd stageheating or
cooling,and flashwhenthe3rd stageof heatingisbeingused.
PleasenotetheEconomyfunctionoverridesthenormal zoningfunction.IfEconomymodehasbeensetthistesting procedure
maynotworkastheTZT-701maydetermineoutsideairisbettersuitedforcooling purposethanrunning thecoolingsystem.If
Economymodeisactive, theword“Economy”will bevisibleontheLCDifoutsideairisbeingusedtocool.
Once thecorrectoperationof theHeating&cooling systemhasbeenverifiedtestingof thezoning (ifinstalled) mustbe
completed. ThesimplestwaytoaccomplishthisistoturntheTZT-701 toFanonlymodeandtaptheon/offbuttontoselectZone
1only.Assuming ZoneDampershavebeenfittedand arecorrectlywiredbacktotheTZT-701,airshouldonlybecomingfrom
theZone1ventsand theZ1LEDonthemainPCBshouldbeon(Z2LEDshouldbeOFF).SelectZone2onlybytappingthe
On/Off buttonandverifythatairisonlycoming fromtheZone2registersandtheZ2LEDonthemainPCBshouldbeon(Z1
LEDshouldbeOFF).
Testotherfunctionsthat mayhavebeenactivatedoneachinstallationof theTZT-701 suchasoutdoorairtemperaturesensors,
timerfunctionsandkeyboardlocksetctoensurethesystemperformsasexpected.IftheTZT-701 isNOTperforming
satisfactorilypleasestudythatfunctionagaininthismanual.If,youhavequestionsorconcerns,pleasecontacttemperzoneoran
authorisedagentfortechnicalsupport.

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FanCoil sensor
TheTZT-701 fancoil sensorisresponsibleforwarmstart,residual heat /coolfanrunonandindoorfanspeedwhentheuserhas
selectedAutoFanspeedmode.
HeatingIndoorfancontrolTemperatures
Increasing temperature/speeds DecreasingTemperature/speeds
FanturnsONinLowspeed33c TurnsOff at27c
FanspeedincreasestoMediumSpeed39c Turnstolowat 33c
Fanincreasestohighspeed45c Turnstomediumat39c
CoolingIndoorfancontrolTemperatures (Hysteresisnotshown)
LowspeedSetpointtemp<1.5cawayfrom
Roomtemperature
Mediumspeed Setpointtemp>1.5c<2.5caway
fromRoomtemperature
HighSpeed Setpointtemp>2.5cawayfrom
Roomtemperature
0.5cHysteresishasbeenprovidedtopreventrapidfanspeedchanges.
Variable Capacity Unitoperation
TheTZT-701 hastwoAnalogoutputsignals(OneforHeatingandoneforCooling) whichcanbeusedtoindicatehowfaraway
fromSetPointtheRoomtemperaturepresentlyis.Thesesignalscanbeusedintemperzone’sDigitalScroll units.Thewiringof
thesesignalsanddetailsabouttheirfunctionisthereforenotcoveredinthiseditionof thisdocument.Thewiringof theseExtra
LowVoltage(0 –10VDC) signalswill beshownonthewiringdiagramsof theDigital Scroll unitswhichhavetheappropriate
hardwarefittedtomakeuseof them.
TZT-701 sensorresistance table–allsensors
TEMPERATURE RESISTANCE TEMPERATURE RESISTANCE
-20°C 98.9k 35°C 6.5k
-10°C 56.05k 40°C 5.3k
-5°C 42.8k 45°C 4.35k
0°C 32.95k 50°C 3.6k
5°C 25.6k 55°C 2.95k
10°C 20.0k 60°C 2.45k
15°C 15.35k 65°C 2.05k
20°C 12.5k 70°C 1.75k
25°C 10.0k 75°C 1.45k
30°C 8.05k 80°C 1.25k
Commissioninghint.
Ifcommissioningalargeapartmentproject,bykeepingawall controllerwithyouandswapping it fortheroomwall controller
fittedtotheapartmentyoucaneasilyactivateheating/coolingand zonefunctionsetcwhileyouareat themainPCBtoverify
correctequipmentoperation.Simplyswapthewiringbacktotheapartmentcontrolleratthecompletionof thecommissioning
process.Thiseliminatestheneedfortwopeoplewhencommissioning orendless tripsup anddownladderstochangefunctionsor
fanspeedswiththeapartmentfittedcontroller.

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Troubleshooting
FaultTable
Symptom SuspectedFault Suggestedremedy
LossofpowertomainPCB
Checksupplyvoltagepresent
PCBFusefailed.
CheckPCBfuses
240V/24Vswitchinwrongposition
Checkvoltageselectionswitch
PowerLEDonmainPCBisnoton
FaultyPowerLED Checktosee ifanyotherPCBLEDS
areon.
Deviceconnectedtofaultinputhas
initiatedashutdown. Correctfaultfromexternaldevice.
Faultlogicjumper(A/Bswitch)inthe
wrongposition.
Changefaultlogicswitchposition
“SystemOK”LEDOFF &“Fault”is
displayedonLCDwhennofaultexists.
ShortonFlt“A”faultinputcabling. Checkfaultinputwiring
SpannericononinLCD
Noequipmentfunction InternalTZT-701Faultdetected. Communicationloss betweenmain
PCBandwallcontrollershouldbe
stronglysuspected.
Makesureyouusescreenedcable.
Checkwiringbetweenwallcontroller
andmainPCBforshortsoropen
circuits.Ensurecorrectwiring.
Cannotselecteitherheatorcoolmodes TZT-701setforHeatingorcooling
onlymodes(Function“Fn”=CorH) See Advancedusermenuonpage9for informationonthisfunction.
PIN21 doesnotlet meintoinstaller
mode PINhasbeensettoanothervalueby anotherperson. Contact installerforthecurrentPIN. Returnwallcontrollertotemperzoneor
approvedservice agentforresetting.
(Service Fee mayapply)
Thismaynotbeafault. Checkfancoil sensortemperatureas
fancoilmaynotbeat correct
temperatureforfanoperation.
Fansometimesstopsandstarts
intermittentlywhileheatingorcooling
isrunning CheckFunctionswitch1,2&4for
correctposition TZT-701maynotbeincorrect operationalmode.
MainPCBpowerLEDisonbutwall
controllerhasnodisplay Faultycontrolwiring. Checkwiringbetweenwallcontroller andmainPCB.
NoHeating(orcoolingorfanetc)
outputsfromtherelays FunctionnotcalledbyTZT-701. ChecktheLEDonmainPCBforthe relaytoensuretheTZT-701iscalling
thefunctioninquestion.
AirConditioningSystemseemstoruns
continuously. Heatingand orcoolingtemperaturesset atunrealisticvalues.
Setalowerheattemperatureand/ora
highercoolingtemperature.
FansettoFanON mode
ChangefanmodetoAuto
ErraticDamperoperation–constantly
movingdespitenochangeinTZT-701
damperoutput.
Somebrandsof dampers“feedback”
voltageonthenon-usedterminals.i.e.
whiledrivingopenvoltagecanbefound
fromthedamperonthedriveclosed
terminal.Thisfunctionprevents
dampersbeingwiredinparallelonone
output.
Replace thedamperwithabrand that
doesnothavethisfeedbackproblem
Somebuttonsdonotappeartooperate Keyboardlockison.
(See the“LC”functiononpage7) Enterinstallermode&unlockbuttons. Requirescorrectpin. See page7

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Edition1.2(0608) Page15of 16
Specifications
InputVoltage24VAC/240VAC(fused) selectable
OperatingTemperature0-50C(32 to122F)RH0-95% (non-condensing)
Sizes:WallController 113x103x23mm
ControlPCB190x140x61mm
TempSensors-10KNTCtypeII
Accuracy+/-0.3degC@25C
Resolution0.1degC
ControlRangeOff to38c
OutsideAirtempdisplayrange-8~60c
Backlight-BlueEL
OptimisedStartmethod-TimetoStartVs TempDifferentialmethod
DisplaySize74x55mm
CommunicationsProtocol-NativeRS485 -150Mmaxrun4corecable.
Relays(Maximumratings-allsuppliedVoltageFree)
FanLow-Max10A240VInductive
FanMed-Max10A240VInductive
FanHigh-Max10A240VInductive
Heat 1-Max10A240VInductive
Heat 2-Max10A240VInductive
Cool1-Max10A240VInductive
Cool2-Max10A240VInductive
Damper1-Max5A240VInductiveChangeover
Damper2-Max5A240VInductiveChangeover
Fault-Max1A240VInductiveChangeover
Status-Max1A240VInductive
ApprovalsCE,Ctick
WarrantyInformation
Thisproductiswarrantedaccordingtotemperzone’sstandard conditionsapplicabletotheunitthisthermostatisfittedto.
Exclusions
As thethermostat’scaseisnotweather-proof, thiswarrantydoesnotcoverrain, moisturedamageorusingthisequipmentoutside
ofthequotedspecifications, norhandlingabuse.
temperzonePartNumbers
ItemDescription Part
Number ItemFunction
SensorRed–2mlong 201 000101 BareSensor–Redtwinwirewithplug (Cutoffplug)-Dischargetemp.
SensorYellow–2mlong 201 000102 BareSensor–Yellowtwinwirewithplug(Cutoff plug) -Indoorcoil
SensorRed–5mlong 201 000116 BareSensor–Redtwinwirewithplug (Cutoffplug)-Return Air
201 000033 CommunicationCable–10mlong(Cutoffplugsateachend)
201 000034 CommunicationCable–20mlong(Cutoffplugsateachend)
TZT-701ME 201 000040 ThermostatMainBoardinaMetalEnclosurewithaTransformer
TZT-701BB 201 000041 ThermostatMainBoardbyitself. –NoEnclosureorTransformer
TZT-701WC 201 000042 ThermostatWallController
TZT-701TR 201 000043 TransformerrequiredtopowertheMainBoard
TZT-701RS1 201 000044 RemoteAirtemperatureSensorinPlasticBox-SingleBead
TZT-701RS2 201 000045 RemoteAirtemperatureSensorinPlasticBox-TwinBead
201 000046 1.5mlongSensorlead(Cutoff plug whenusedwithTZT-701)
201 000047 6mlongSensorlead(Cutoff plug whenusedwithTZT-701)
201 000048 12mlongSensorlead(Cutoff plug whenusedwithTZT-701)
201 000049 25mlongSensorlead(Cutoff plug whenusedwithTZT-701)

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Contactdetails
temperzoneltd.NewZealandHeadOffice: 38 TidalRoad Postal Address PrivateBag93303
MangereOtahuhu
Auckland Manukau1640
NewZealand Auckland
Ph:[phone] Fax:[phone]
e-mail:sales&temperzone.co.nz
temperzoneltd.AustralianHeadOffice: 7ABessemerStreet Postal Address PO Box6448
Blacktown DeliveryCentreBlacktown
SydneyNSW2148
Australia Australia
Ph:[phone] Fax:[phone]
e-mail:sales&temperzone.com.au
ThisproducthasbeenproducedbySmartTempAustraliaexclusivelyfortemperzone.
Intellectualrightsapply-allrightsreserved.
ThisproductisPatentPending.
Duetocontinualproductimprovementspecificationssubjecttochangewithoutnotice.