Honeywell TH8320U Thermostat User Manual


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VisionPRO
TM
TH8000 Series
11
69-2693—01
ENGLISH
Auto Changeover(SetupFunction0300):WhensettoAuto,thethermostatautomaticallyselects
heating or cooling depending on the indoor temperature. Heat and cool settings must be at least 2 de-
greesapart.Iffunction0380issettoOn,theheatandcoolsettingsmustbeatleast5degreesapart.
Remote Sensor(SetupFunction0340):Ifanoptionaloutdoorsensorisinstalled,thethermostatcan
displaytheoutsidetemperature.Ifanoptionalremoteindoorsensorisinstalled,thethermostatwill
display the temperature at the sensor location (the internal sensor in the thermostat is not used).
Adaptive Intelligent Recovery(SetupFunction0530):Allowsthethermostatto“learn”howlongthe
furnaceandairconditionertaketoreachprogrammedtemperaturesettings,sothetemperatureis
reached at the scheduled time.
Compressor Protection(SetupFunction0580):Forcesthecompressortowaitafewminutesbefore
restarting,topreventdamage.Duringthistime,themessage“Wait”ashesonthedisplay.
Dehumidication control(SetupFunction0380):TH8321models monitor the indoor humidity level
and automatically activate the cooling system to reduce humidity by lowering the temperature by up
to3degreesbelowthecurrentcoolsetting.
Heat Pump Temperature Lockout (with fossil-fuelbackup):Ifthethermostatisinstalledwithan
optionaloutdoorsensor,youcanselectacompressorlockouttemperature(Function0350).When
theoutdoortemperatureisbelowthelockouttemperature,onlytheauxiliaryheatoperates.Whenthe
outdoortemperatureisabovethelockouttemperature,onlythecompressoroperates.
Heat Pump Temperature Lockouts (with electric heatbackup):Ifthethermostatisinstalledwith
anoptionaloutdoorsensor,youcanselectacompressorlockouttemperature(Function0350)and/
oranauxiliaryheatlockouttemperature(Function0360).Whentheoutdoortemperatureisbelowthe
compressorlockouttemperature,onlytheauxiliaryheatoperates.Whentheoutdoortemperatureis
abovetheauxiliarylockouttemperature,onlythecompressoroperates.Iftheoutdoortemperatureis
betweenthecompressorandauxiliarylockouttemperatures,boththecompressorandauxiliaryheat
can operate.
Shaded areas below apply only to TH8320/TH8321.
Special functions
Please contact your distributor to order replacement parts.
Outdoor temperature sensor ..............................PartNumberC7089U1006
Remote indoor temperature sensor .................. PartNumberC7189U1005
Cover plate* ............................................................PartNumber32003796-001
*(Use to cover marks left by old thermostats.)
Accessories & replacement parts
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