Quest Controls BACnet T-Stat User manual

Rev1.1,7/28/11
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BACnetTStatbyQuestControls
User’sManualRev1.1
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COPYRIGHTNOTICE
Copyright©2011byQuestControlsInc.(QUEST).
ThematerialdiscussedinthispublicationistheproprietarypropertyofQUEST.
QUESTretainsallrightstoreproductionanddistributionofthispublication.
Specificationsaresubjecttochangewithoutnotice.
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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|1
TableofContents
1.0Overview.................................................................................................................................................2
1.1Applications.........................................................................................................................................2
1.2FeaturesandBenefits.........................................................................................................................2
2.0Installation/Wiring................................................................................................................................3
2.1Installingthemountingplate..............................................................................................................3
2.2Wiring..................................................................................................................................................4
3.0FrontPanelDisplay/KeypadOperation..................................................................................................6
3.1RunMode............................................................................................................................................6
3.2OccupiedOverride..............................................................................................................................6
3.3AdjustingSetpoints.............................................................................................................................6
3.4ProgrammingtheT‐Stat......................................................................................................................6
3.4.1Programmingflow........................................................................................................................7
3.4.2SubMenus...................................................................................................................................7
4.0BacNETProgramming.............................................................................................................................9
5.0OspreyFMSInterface..............................................................................................................................9
5.1LoggingIn............................................................................................................................................9
5.2MainDashboardPage.........................................................................................................................9
5.3ProgrammingPage............................................................................................................................10
6.0SettingCommunicationsJumpers........................................................................................................11
6.1RS485EndofLineandBiasing..........................................................................................................11
6.2RemoteZoneSensorJumper12.......................................................................................................11
7.0CareandCleaning.................................................................................................................................13
8.0Troubleshooting....................................................................................................................................13
9.0Specifications........................................................................................................................................14
Attachment1‐BACnetProtocolImplementationConformanceStatement...............................................2
Attachment2–OspreyProgrammingPage...............................................................................................14
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Figure1–BackPlateMounting.....................................................................................................................................3
Figure2‐ConnectionDescriptions................................................................................................................................4
Figure3–TypicalWiringDiagram.................................................................................................................................5

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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|2
Figure4‐ProgrammingFlow.........................................................................................................................................7
Figure5‐SettingCommunicationJumpers.................................................................................................................12
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1.0Overview
TheQuestControlsBACnetthermostatisdesignedforunitaryequipmentwithsingleormulti‐stage
heatingandcoolingpackages.Itisaneasytousethermostatforsmalltomediumsizedcommercial
buildings.
TheQuestControlsBACnetT‐Statprovidesfunctionalityandconfigurabilitytoaccommodatemost
conventional&heatpumpapplications.Theapplicationspecificapproachensuresthatcommissioningis
straightforwardandhassle‐free.EachBACnetT‐Statcontainsinternalprogramminglogic&aninternal
scheduletooperateindependentlyandcanbeconfiguredtolockoutlocalaccesstoensure
programmingintegrityandongoingcorrectcontrol.TheBACnetT‐Statcanalsoremotelycommunicate
throughBACnetMSTPwiththeOspreyFMSdashboard.
TheBACnetT‐Statcontainsanonboardtempsensormakingitsuitableforzonemounting,orremote
inputforpanelmounting.TheBACnetT‐Statincludesanadditional4/20milliampinput,digitalinput,
andanalog&digitaloutputs.
1.1Applications
Quest’sBACnetthermostatisdesignedtocontrolmostunitaryhvacequipmentincluding:
RooftopUnits Split‐systems GasPacks HeatPumps
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1.2FeaturesandBenefits
•StandaloneornetworkoperationtocontrolHVACsystem
•BACnetMS/TPcommunications
•Controlbasedoninternalorremotezonetemperaturesensor
•Monitorzonetemp,dischargeairtempandfanstatus
•7daytimeclockwith2Occupiedand1UnOccupiedschedules
•2stagesofcooling+2stagesofheat+1fan
•Backlightdisplay
•2line16characterdisplayforeaseofuse
•AdjustableMin&Maxruntimeforstages
•Sensorcalibrationthroughkeypad
•5buttonkeypadanddisplayforeasyprogramming
•Lockoutorlimituseraccessviapassword
•TempdisplayedinForC
•OverridewithselectableOccupiedtimer(0to240min)
•BACnetMACaddress&BACnetNetaddress
•Tempuseradjustlimit
•DaylightSavingsTimeadjustment
•Useindustrystandard10ktype3thermistor

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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|3
2.0Installation/Wiring
TheBACnetTStatutilizesasimpletounderstand,applicationspecificconfigurationforwiringto
eitheraSingleorTwoStageConventionalorHeatPumpMechanicalUnit.
1-1/16"
1-1/2" 2-1/4"
3-1/4"
Back mounting plate 5-3/8", 5-1/2"with cover
Back mounting plate 3-5/8", 3-7/8"with cover
1-9/16"
1/2"
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Figure1–BackPlateMounting
2.1Installingthemountingplate
1. PlantheLocation–Whenzonemounting,theT‐Statshouldbeneareyelevel,onaninterior
wallandawayfromexternalsourcesofheatorcold(windows,doors,HVACsupplyducts,
Servers,etc)
2. PreparetheArea‐Themountingscrewholeswilllineuponastandardduplexoutletbox,or
canbeflushmountedtothewall.Whenflushmounting,ensureclearanceforthewirestoexit
throughthecenterwindowonthebackplate.Installoutletboxorscrewanchors,run
thermostatwires,sensorwire,andbuscable.
3. Removethecover‐ThecoveroftheT‐Statisheldonbyfourclips,twoonthetopandtwoon
thebottom.Removethecovercarefully,thecovermaybesnuganddepressingtheclips
throughtheslotopeningsmayhelpingettingthecoveroff.

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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|4
4. MountthePlate‐Dressthewiresthroughthecenterwindowonthebackplateandinstall
mountingscrews.Tightenscrewstoensuretheplateismountedsecurely,butdonotover
tightenandwarpthebackplate.
2.2Wiring
1. TerminatetheWireConnections–Cutoffexcesswire,dresswireflushtothebackpaneland
strip1/4”ofinsulationtoexposeconductor.InsertandtightenusingtheWireTerminations
diagram.
2. ConnectionDescriptions:
ZONE+ Formountingaremotetemperaturesensor,setJumper
ZONE– J1/2totop&middleandSENSSPOTtooffonfrontpanel
SUPPLY+ SupplyDucttemperaturesensor
SUPPLY– 
FANP+ FANProofofRuncurrenttransducer
FANP– 
MA+ 24mAinputforoptionalsensor
MA24/‐  “Onfuturemodels”
DIN+ Digitalinputforoptionalinput
DIN– “Onfuturemodels”
AOP+ Analogoutputforadditionalcontrol
AOP– “Onfuturemodels”
BUSD0‐  BusWirefromQuestBACnetRouterandthenonto
BUSD1+additionalT‐Stats
BUSC 
R 24VACpower‐red
C 24VACcommon‐black
FANG FanControl–green
COOLY1 CallforCool,stage1‐yellow
COOLY2 CallforCool,stage2–Blue/Orange
HEAT
W1/B CallforHeat,stage1‐white
HEATW2 CallforHeat,stage2–Varies
0 HeatPumpReversingValve‐orange
Figure2‐ConnectionDescriptions
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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|5
3. TypicalWiringDiagram
+ -
ZONE
+ -
SUPPLY
+ -
FAN P
+ -
MA
+ -
D IN
+ -
AOP DO- D1+ C
BUS
R C G Y 1 Y2 W/B W2 O
FAN COOL HEAT
WIRE RACEWAY
CT
24VAC
R CF Y1Y2W1W2
Supply Fan
Cool Stage 1 Cool Stage 2 Heat Stage 1 Heat Stage 2
HVAC ControlInterface
Located in HVAC system
For remote mounting
of zone sensor From Q3 Gateway To Additional T-Stats
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Figure3–TypicalWiringDiagram
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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|6
3.0FrontPanelDisplay/KeypadOperation
TheQuestBACnetT‐Stathasa2X16characterbacklitLCDdisplayandfivebuttonsforstatusreviewand
programming.Thebacklitisnormallyoffbutwillturnonwithapressofanykey.Thebacklightwillturn
offafterafewsecondsofnokeysbeingpressed.Thefirstpressofthekeypadwillturnonthebacklight
andtelltheT‐Stattobereadyforadditionalkeypresses.Allkeypadoperationdescribedbelowisafter
youpressandreleaseanykeytoenablethebacklight.
3.1RunMode
Thedisplaywillshowthecurrentdayoftheweekandtimealongwith
thezonesensorreadingonthetopline.Thesecondlinewillshowthe
systemstatusi.e.callingforcoolingorheatingalongwiththefan
statusofONorAuto.Additionalstatusinformationcanbereviewedbypressingtheleftorrightarrow
keys.Thiswillcyclethedisplayonthesecondlinetoshow:Occupiedstatus,currentsetpoints,control
mode,Fanproofstatusandsupplyairreading.
3.2OccupiedOverride
PressthecenterbuttonuntiltheT‐Statasksifyouwanttoenter
occupiedoverridemode.ThedefaultvalueisNo,sousetheupor
downarrowtochangethevaluetoYes.Thenpressthecenterbutton
againtoacceptyourchoice.IfyouchooseYesthentheT‐Statwillbeinoccupiedoverridemodeforthe
programmeddelaytimeorunlesstheuserpressesthecenterbuttonagaintodisabletheoccupied
overridemode.
3.3AdjustingSetpoints
TheT‐Statwillallowuserstoadjustthesetpointsupordownbased
upontheallowableamountprogrammedintotheT‐Stat.Presseither
theupordownarrowuntiltheSetpointChangemessageappearson
lineone.Thenusetheup/downarrowstoincreaseordecreasethesetpoints.Noteboththeheatand
coolsetpointswillmovethesameamounttomaintainthefactoryspecifiedoperatingwindow.Thepre
programmedlimitwillpreventtheuserfromadjustingthesetpointsoutoftheallowablerange.Press
thecenterbuttontoacceptyourchanges.Thesechangeswillstayinplaceduringtheoccupiedhours
andresetwhentheStatgoesintounoccupied.IftheStatwasintheunoccupiedmodewhentheuser
pressedtheup/downarrowsitwillgointooccupiedoverridemode(sameaspressingthecenterbutton)
andallowthesetpointadjustment.
3.4ProgrammingtheTStat
Pressandholdtheleftandrightarrowsimultaneouslyuntilthedisplay
saysProgramChoices.Thescreenispasswordprotectedwiththe
factorydefaultpasswordof11.Usetheup/downarrowkeystochange
thepasswordvalueandpressthecenterbuttontologin.Passwordscanbeturnedofforchangedto
anyvaluefrom11to99viaBACnet.Fromthismenuusetheup/downarrowstonavigatetothe
AccessCode
11

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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|7
availablechoices:System,Setpoints,Schedules,Clock&Run.Choosingoneoftheseoptionswillpresent
theavailablechoices.Usetheup/downarrowstocyclethroughthechoicesforeachfieldandthe
centerbuttontoacceptthechangeandmovetothenextchoice.Onceyoustartinoneoftheprogram
menus,youmuststepthroughallchoicesuntiltheendinordertoacceptyourchanges.Pressthe
centerbuttontoacceptthecurrentprogramvalueandgoontothenextchoice.Thefactorydefault
valuesareunderlinedbelow:

NOTE:FactorydefaultfortemperaturereadingsisinFahrenheit.

3.4.1Programmingflow:
Mon09:09A 81F
Cool1 FanAuto
AccessCode
11
ProgramChoices
System
ProgramChoices
Run
ProgramChoices
Schedules
ProgramChoices
Clock
ProgramChoices
Setpoints
EnteringSystem
Menu
EnteringRunMenu
EnteringSchedules
Menu
EnteringClockMenu
EnteringSetpoints
Menu

Figure4‐ProgrammingFlow

3.4.2SubMenus
System:Thisisthemenufordoingtheinitialsystemsetup.Itemsprogrammedunderthismenuare:
HVACtype:Conventional1,Conventional2,Heatpump1,Heatpump2,Gasheat1,Gasheat2
ControlMode:Auto,Cool,Heat,Off
OccupiedFanMode:Auto,On
UnoccupiedFanMode:Auto,On
TemperatureUnits:FahrenheitorCelsius
ZoneSensorSpot:OnBoardorOffBoard
ZoneTemperatureOffset:‐9to9(0)
SupplySensorOffset:‐9to9(0)
OccupiedOverrideTime0‐240minutes(factorydefault60)
BACnetMACAddress:1‐127(1)
BACnetNetworkAddress:1‐4194(0)
BaudRate:9,600,19200,38400,57600,76800



BACnetT‐StatUser’sManualRev1.1,7/28/11Page|8

Setpoints:
UsedtosetalloftheT‐Statssetpoints
OccCoolSpt:40‐90(72)
OccHeatSpt:40‐90(68)
UnoccCoolSpt:40‐90(85)
UnoccHeatSpt:40‐90(55)
CoolStg2Delta:1‐9(2)
HeatStg2Delta:1‐9(2)
C/HMinDelta:2‐9(4)
UserAdjustMax:0‐5(5)

Clock:Thisisusedtosetthesystemclock.Usetherightarrowkeytomovetothenextfieldandthe
up/downarrowtochangethefield.Timeisenteredin24hourformat.Pressthecenterbuttonto
acceptchanges.

Schedules:Schedulessupporttwooccupiedwindowsperday.Thetoplinewillshowthedayofthe
weekandeitherwindow1or2.Usetheup/downarrowkeystochangethefield’svalueandthe
left/rightarrowkeystochangetothehoursandminutesfields.Timeisenteredin24hourformat.
Pressthecenterbuttontoacceptthechangestothewindowandmovetothenextavailablewindow.
Youmustcyclethroughallwindowstogettotheendandcompletetheprogramming.Itisacceptable
tojustpressthecenterbuttontoskipandmoveontothenextwindow.

Inthisexample,onMondaymorningat8amtheT‐Stat
willswitchtotheoccupiedsetpoints.Thiswill
continueuntil5pmwhenitwillreverttothe
unoccupiedsettings.Sincethewindow2timeisall
zeros,therewillnotbeasecondoccupiedwindowfor
thatday.


Inthisexample,therewillbetwooccupiedmode
changesonMonday.Thefirstisfrom5amandruns
until8amandthesecondwilloccurat4:30pmand
continueuntil10pm.



Run:PutstheT‐Statbackinrunmode


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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|9
4.0BacNETProgramming
TheBACnetthermostatmaybeprogrammedusingeitherthekeypadanddisplayorthroughthe
OspreyFMSwebinterface.Keypadcanalsobelockedouttorequireremoteprogrammingonly.Before
programmingwiththeOspreyFMSinterface,thenyoumustsettheaddress,baudrateandtemperature
scale.
5.0OspreyFMSInterface
OspreyFMSprovidesatoolforeasy,straightforwardcommissioningandongoingmanagementofthe
BACnetthermostat.Authorizeduserscanremotelysignintotheinterfacetomonitor,schedule,
programandalarm.TofindoutifOspreyFMSisavailableatyourinstallation,speakwiththeproject
managerorcontactQuestControlsformoreinformation.
5.1LoggingIn
OspreyFMSiscompatiblewithmostversionsofInternetExplorer,Firefox,ChromeandSafarirunningon
WindowsOS,OSX,iOSoranyoperatingsystemwithbrowsersupportforjavascript.
Tologin,gotohttps://www.ospreyfms.com.Ifyouhaveanalreadyassignedusernameandpassword
enterithere(Note:botharecAsEsEnSiTiVe).Toarequestalogin,clickonthelinkatthebottomofthe
pageorcontactyourprojectmanager.
5.2MainDashboardPage
Afterloggingin,themaindashboardpageprovidesmonitoringandalarminginformationonallyour
connectedsites.Clickingonasiteontheleftofthemapwillbringuptheconnectedcontrols,including
theBACnetthermostatsinthetablebelowthemap.EachiconbelowrepresentsaBACnetthermostat
andsignifiesitscurrentoperatingstatus.FordetailsconsulttheOspreyFMSmanual.




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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|10
Toaccesstheprogrammingpage,clickontheBACnetthermostaticoninthebottomtable.Apopupwill
appear.ClickontheProgramtab,andthenclickontheControllerProgrammingbuttonatthebottom
right.

5.3ProgrammingPage
TheprogrammingpageprovidesaninterfaceformakinganychangetoprogramsettingsontheBACnet
thermostat.Thepagealsoprovidestoolsforassigningschedulesandalarms.Fordetailsoncreating
schedulesandalarmsrefertotheOspreyFMSmanual.

ForalargerimageoftheProgrammingPagepleaserefertoAttachment2attheendofthismanual.

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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|11
MakingchangesintheProgrammingPageisstraightforwardandcanbemadebytypinginthedesired
value.Allprogrammingcapabilitiesoutlinedearlierinthemanualarereflectedonthispage.Sections
onthepageinclude:
•Heating&CoolingSetpoints
•ScheduleSelection
•AlarmOptions
•SystemModeOptions
•Calibrations&Lockouts
•StageOffsets&Differentials
•FanProving&LocalOverride
Onceallchangesarecompleted,clicktheSaveChangesbutton.Changeswillbesentdownviathe
internettotherespectiveBACnetthermostat.Allow5minutesforthechangestotakeeffect.
6.0SettingCommunicationsJumpers
ThejumpersareontheT‐Statmainboard,removethemountingplateandturnovertheT‐Stattolocate
thejumpers.RefertoFigure5forjumperidentificationandsettings.
6.1RS485EndofLineandBiasing
WiringoftheRS485networkwillrequiretheuseofEndofLineandBiasResistors.WehaveJumpersJ13
,J14&J17forthis.Functionisasfollowsto:enabletheEndofLineresistor(EOL)movejumperJ13to
pins1&2(UP).ToenablelinebiasingthemovejumpersJ14&J17topositions1&2(UP).EOLis
requiredforthelastboardinadaisychaining.Biasingisonlyrequiredifneededonthenetwork.
Pleasenotethatjumper13issecondfromleft,14isthirdand17isfifth(orlastjumper).
6.2RemoteZoneSensorJumper12
WhenaremotemountedZoneTemperaturesensorisused,theT‐Stat
NOTE:JumpersJ15&J16areforfutureconfigurationandmustbeleftinthedisabledpositiononpins2
&3.Theboardwillexperiencecommunicationsissuesifthosejumpersaremoved.


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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|12
Jumperonpins1&2enables“EndofLineResistor”
(FutureUse)
Jumperonpins1&2enables“LineBiasing”
Jumperonpins1&2enables“LineBiasing”
(FutureUse)
Denotespin1
Jumperonpins1&2whenusinga“RemoteZone
TemperatureSensor”
Denotespin1

Figure5‐SettingCommunicationJumpers


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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|13
7.0CareandCleaning
TheBACnetT‐Statshouldprovideyearsofuninterruptedservice.Minimalpreventivemaintenanceis
required.However;itisimportanttomakesurethattheT‐
Statiskeptfreeofdust.AdustyT‐Statwillnotallowairto
circulateproperlyaroundthebuilt‐intemperaturesensor
effectingproperoperationoftheunit.


8.0Troubleshooting
LCDScreenisdarkandnocharactersare
displayed
Removecoverandverifypresenceofpoweronthe“R”
terminal,checkconnectionofthecommononthe“C”
terminal.Checkforpresenceof24VACbetweenRandC.
T‐StatmodesayCool1,butcompressor
doesnotengage
VerifyconnectiontoHVACunit.Ensureshort‐cycletimeris
notinhibitingunit.
Clocklosestimeafterpowerfailure ReplacetheCR1025Lithiumbattery
ButtonsdonotrespondPressbuttonsslowly,somefunctionsmaytakepressingthe
buttontwice.
DisplayiscorruptedFirst,cyclepowertotheunit.Ifthisdoesnotcorrectthe
problem,resetsystembyremovingtheT‐Statbodyfromthe
mountingplate.Thenreturnthebodytothemountingplate
whiledepressingtheuparrow,centerbuttonanddown
arrowallatthesametime.Thedisplaywillrespondwith
“ColdSense”,thesebuttonsmustbeheldforaminimum5
second.Thiswillbegina
systemrestartandthe
displaywillrespondwith
“ColdStart”.Releasethebuttonsatthistime.Thisaction
willresettheT‐Statandreturnallsettingstotheirfactory
defaults.Allcustomscheduleswillbeerased.


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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|14
9.0Specifications

Power

Interoperability
Communication  BACnetMS/TP
BACnetProfile  B‐ASC
BaudRate 9600,19200,38400,57600,76800bps
MACAddress BACnetMS/TPMACAddress;
  Adjustablefrom1–127
NetworkAddress BACnetNetAddress;
  Adjustablefrom1–4194

Hardware
MemoryFlashMemory
Backup   Batterygoodfor6months

Environmental
OperatingTemperature 0Cto50C;32Fto122F
StorageTemperature ‐30Cto50C;‐22Fto122F
RelativeHumidity  0to95%non‐condensing

Enclosure
Color   QuestWhite
Dimensions  3.65”x5.30”x1.5”
(300mmx200mmx100mm)
ShippingWeight  0.75lbs(.34kg)

AgencyApprovals
UL UL873(US)andCSAC22.2No.24(Canada)
FCC ComplianttoCFR47,Part15,SubpartB,
 ClassA(US)
CA Title24

Inputs
DigitalInput Relaydrycontactonlyacross
  CterminaltoDI1
Zone&Supply  10KType3thermistor
CO2(future)
Outputs
ContactOutputRating 
Eachrelayoutput(G,Y1,Y2,W1/B,W2,O)
 has:30VAC,1Amaximum30VAC,3Ain‐rush
AnalogOutput(future) 0‐20mAor0‐10VDC

LCDDisplay
Type   BacklitLCDdisplay
DisplayArea  2rowsof16characterseach

Functionality
Resolution
‐Temperature  +/‐0.1C(+/‐0.2F)
‐Humidity*
‐CO2*



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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|2
Attachment1BACnetProtocolImplementationConformanceStatement
Date: June 7, 2011
Vendor Name: Quest Controls, Inc.
Product Name: Qstat 10000
Product Model Number: 10000
Application Software Version: 1.0.0
Firmware Revision: 1.0.0
BACnet Protocol Revision: 1
Product Description:
The Quest BACnet T-Stat operates as either a standalone or networked controller of unitary HVAC equipment. It is
designed for two-stage selectable control of conventional (Electric & Gas heat) and heatpump units. In addition, the
Quest BACnet T-Stat has an internal zone temperature sensor, and inputs for remote zone temperature, supply-air
temperature & fan proving. The LCD screen provides an easy, intuitive interface for setup, commissioning and
ongoing programming. This control is designed to work in harmony with the Osprey FMS central server – with
capabilities for expanded functions such as demand response, curtailment, and internet-based outdoor air
temperature.
BACnet Standardized Device Profile (Annex L):
 BACnet Operator Workstation (B-OWS)
 BACnet Advanced Operator Workstation (B-AWS)
 BACnet Operator Display (B-OD)
 BACnet Building Controller (B-BC)
 BACnet Advanced Application Controller (B-AAC)
: BACnet Application Specific Controller (B-ASC)
 BACnet Smart Sensor (B-SS)
 BACnet SmartActuator (B-SA)
List all BACnet Interoperability Building Blocks Supported (Annex K):
•Data Sharing – ReadProperty-B (DS-RP-B)
•Data Sharing – WriteProperty-B (DS-WP-B)
•Dynamic Device Binding-B (DM-DDB-B)
•DeviceCommunicationControl-B (DM-DCC-B)
•TimeSynchronization-B (DM-TS-B)
•UTCTimeSynchronization-B (DM-UTC-B)
•ReinitializeDevice-B (DM-RD-B)
Segmentation Capability:
 Able to transmit segmented messages Window Size
 Able to receive segmented messages Window Size
Standard Object Types Supported:
-Analog Input -Analog Value -Binary Input -Binary Value -Device -Multistate Input
(Note – No objects are dynamically creatable or deletable.)

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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|3
Analog Input Object Detail
Supported Properties Writable? Property Range Restrictions
Object Identifier N N/A
Object Name N N/A
Description N N/A
Object Type N N/A
Present Value N N/A
Status Flags N N/A
Event State N N/A
Out of Service N N/A
Units N N/A
Instance Description Writable? Notes
AI-0 Raw Zone Temp N Fahrenheit or Celsius reading of the zone thermistor, directly from
the sensor (no offsets applied).
A reading of -25F indicates an open sensor condition and a reading
of 150F indicates a shorted sensor condition.
AI-1 Raw Supply Air N Fahrenheit or Celsius reading of the supply air thermistor, directly
from the sensor (no offsets applied).
A reading of -25F indicates an open sensor condition and a reading
of 150F indicates a shorted sensor condition.
Analog Value Object Detail
Supported Properties Writable? Property Range Restrictions
Object Identifier N N/A
Object Name N N/A
Description N N/A
Object Type N N/A
Present Value Y (some) Y
Status Flags N N/A
Event State N N/A
Out of Service N N/A
Units N N/A
Instance Description Writable? Units Limits Default Notes
AV-0 MAC Address Y None 1..127 1 MS/TP MAC address needs to be
unique in each network. You should
restart the unit after changing the

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Instance Description Writable? Units Limits Default Notes
address.
Note that the device object id is the
MSTP Network * 1000 + the MAC
address.
AV-1 MSTP Network Y None 0..4194 0 MS/TP Network address should be
unique for each network. You
should restart the unit after changing
the address.
Note that the device object id is the
MSTP Network * 1000 + the MAC
address.
AV-2 Zone Offset Y TempF or
TempC -9F..9F 0 Added toAI-0 (Zone sensor) to create AV-19 (Zone Reading). Use
this number to calibrate your
system.
AV-3 Supply Offset Y TempF or
TempC -9F..9F 0 Added to AI-1 (Supply sensor) to create AV-20 (Supply Reading). Use
this number to calibrate your
system.
AV-4 Residual Fan Delay Y Seconds 0..180 30 Number of seconds to let the fan
continue running after the system
reaches setpoint.
AV-5 Occupied Cool Spt Y TempF or
TempC 42F..90F 74F Occupied stage 1 cooling setpoint.
AV-6 Unoccupied Cool Spt Y TempF or
TempC 42F..90F 85F Unoccupied stage 1 cooling setpoint.
AV-7 Occupied Heat Spt Y TempF or
TempC 40F..88F 68F Occupied stage 1 heating setpoint.
AV-8 Unoccupied Heat Spt Y TempF or
TempC 40F..88F 55F Unoccupied stage 1 heating setpoint.
AV-9 Cool 2 Stage Delta Y TempF or
TempC 1F..9F 2F Degrees above the stage 1 cooling setpoint where stage 2 energizes.
AV-10 Heat 2 Stage Delta Y TempF or
TempC 1F..9F 2F Degrees below the stage 1 heating setpoint where stage 2 energizes.
AV-11 Cool Heat Min Diff Y Seconds 2F..9F 4F The minimum difference between
stage 1 heating and cooling
setpoints. Note that the system will
automatically adjust the stage 1
cooling setpoint to enforce this limit.
AV-12 Cool Min On Time Y Seconds 60..600 120 The minimum time that a cooling
stage must be on before the system
will change from that particular
stage.
AV-13 Cool Min Off Time Y Seconds 60..600 120 The minimum time that a cooling
stage must be off before the system
will change into that particular

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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|5
Instance Description Writable? Units Limits Default Notes
cooling stage.
AV-14 Heat Min On Time Y Seconds 60..600 120 The minimum time that a heating
stage must be on before the system
will change from that particular
stage.
AV-15 Heat Min Off Time Y Seconds 60..600 120 The minimum time that a heating
stage must be off before the system
will change into that particular
heating stage.
AV-16 Max User Spt Adjust Y TempF or
TempC 0..5F 5F The range a user can adjust the cool or heat setpoint from the front panel.
AV-17 Occupied Override Time Y Minutes 0..240 60 The time the system will be in
occupied mode when a front panel
user requests transition.
AV-18 Override Time Left Y Seconds 0..(AV-
17*60) N/A The time left in occupied mode if the system was overridden at the
front panel.
AV-19 Zone Reading Y TempF or
TempC -25F..150F N/A The zone sensor reading corrected with the zone offset (AI0 + AV2).
AV-20 Supply Reading Y TempF or
TempC -25F..150F N/A The supply sensor reading correct with the supply offset (AI1 +AV3).
AV-21 Restart Delay Y Seconds 0..900 0 The time the system will wait after
restart before transitioning into any
HVAC stage.
AV-22 Occupied Mode Status N None N/A N/A A bit encoded value of the current
occupied status.
Bit 0 – On if BACnet overrride
exists
Bit 1 – On if front panel override
exists
Bit 2 – On if time schedule override
exists
Note all bits could be On.
AV-23 Cool Stage 1 Spt N TempF or
TempC N/A N/A The current stage 1 cooling setpoint including any front panel offset.
AV-24 Heat Stage 1 Spt N TempF or
TempC N/A N/A The current stage 1 heating setpoint including any front panel offset.
AV-25 Mon Sched Win 1 Start Y Minutes 0..1440 0 Number of minutes since midnight
to begin occupied mode for this
window.
AV-26 Mon Sched Win 1 End Y Minutes 0..1440 0 Number of minutes since midnight
to end occupied mode for this
window.
Set both the Start and End values to
0 to mark this window as unused.

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BACnetT‐StatUser’sManualRev1.1,7/28/11Page|6
Instance Description Writable? Units Limits Default Notes
AV-27 Mon Sched Win 2 Start Y Minutes 0..1440 0 Number of minutes since midnight
to begin occupied mode for this
window.
AV-28 Mon Sched Win 2 End Y Minutes 0..1440 0 Number of minutes since midnight
to end occupied mode for this
window.
Set both the Start and End values to
0 to mark this window as unused.
AV-29 Tue Sched Win 1 Start Y Minutes 0..1440 0 Number of minutes since midnight
to begin occupied mode for this
window.
AV-30 Tue Sched Win 1 End Y Minutes 0..1440 0 Number of minutes since midnight
to end occupied mode for this
window.
Set both the Start and End values to
0 to mark this window as unused.
AV-31 Tue Sched Win 2 Start Y Minutes 0..1440 0 Number of minutes since midnight
to begin occupied mode for this
window.
AV-32 Tue Sched Win 2 End Y Minutes 0..1440 0 Number of minutes since midnight
to end occupied mode for this
window.
Set both the Start and End values to
0 to mark this window as unused.
AV-33 Wed Sched Win 1 Start Y Minutes 0..1440 0 Number of minutes since midnight
to begin occupied mode for this
window.
AV-34 Wed Sched Win 1 End Y Minutes 0..1440 0 Number of minutes since midnight
to end occupied mode for this
window.
Set both the Start and End values to
0 to mark this window as unused.
AV-35 Wed Sched Win 2 Start Y Minutes 0..1440 0 Number of minutes since midnight
to begin occupied mode for this
window.
AV-36 Wed Sched Win 2 End Y Minutes 0..1440 0 Number of minutes since midnight
to end occupied mode for this
window.
Set both the Start and End values to
0 to mark this window as unused.
AV-37 Thu Sched Win 1 Start Y Minutes 0..1440 0 Number of minutes since midnight
to begin occupied mode for this
window.
AV-38 Thu Sched Win 1 End Y Minutes 0..1440 0 Number of minutes since midnight
to end occupied mode for this
window.
Set both the Start and End values to