Specifications

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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in put,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