Specifications

BACnetTStatUser’sManualRev1.1,7/28/11 Page|2
Figure4‐ProgrammingFlow.........................................................................................................................................7
Figure5‐SettingCommunicationJumpers.................................................................................................................12
1.0Overview
TheQuestControlsBACnetthermostatisdesignedforunitaryequipmentwithsingleormultistage
heatingandcoolingpackages.Itisaneasytousethermostatforsmalltomediumsizedcommercial
buildings.
TheQuestControlsBACnetTStatprovidesfunctionalityandconfigurabilitytoaccommodatemost
conventional&heatpumpapplications.The
applicationspecificapproachensuresthatcommissioningis
straightforwardandhasslefree.EachBACnetTStatcontainsinternalprogramminglogic&aninternal
scheduletooperateindependentlyandcanbeconfiguredtolockoutlocalaccesstoensure
programmingintegrityandongoingcorrectcontrol.TheBACnetTStatcan alsoremotelycommunicate
throughBACnetMSTPwiththeOspreyFMSdashboard.
TheBACnetTStatcontainsanonboardtempsensormakingitsuitableforzonemounting,orremote
inputforpanelmounting.TheBACnetTStat includesanadditional4/20milliampin put,digitalinput,
andanalog&digitaloutputs.
1.1Applications
Quest’sBACnetthermostatisdesignedtocontrolmostunitaryhvacequipmentincluding:
RooftopUnits Splitsystems GasPacks HeatPumps
1.2FeaturesandBenefits
StandaloneornetworkoperationtocontrolHVACsystem
BACnetMS/TPcommunications
Controlbasedoninternalorremotezonetemperaturesensor
Monitorzonetemp,dischargeairtempandfanstatus
7daytimeclockwith2Occupied and1UnOccupiedschedules
2stagesofcooling+
2stagesofheat+1fan
Backlightdisplay
2line16characterdisplayforeaseofuse
AdjustableMin&Maxruntimeforstages
Sensorcalibrationthroughkeypad
5buttonkeypadanddisplayforeasyprogramming
Lockoutorlimituseraccessvia
password
TempdisplayedinForC
OverridewithselectableOccupiedtimer(0to240min)
BACnetMACaddress&BACnetNetaddress
Tempuseradjustlimit
DaylightSavingsTimeadjustment
Useindustrystandard10ktype3thermistor