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8
400 Series Thermostats  
Owner’s Manual  
Includes  
Operating Instructions and  
Warranty Information  
READ AND SAVE THESE INSTRUCTIONS  
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TAꢀꢁE Oꢂ CONTENTS  
AꢀOUT ꢃOUR NEꢄ THERꢅOSTAT  
Thermostat features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
How to identify your thermostat’s model number . . . . . . . . . . . . . . . . . . . . . . . . . 3  
Controls & display overview  
•ꢀNonꢀProgrammableꢀmodelsꢀ(8444,ꢀ8446,ꢀ8448) . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
•ꢀProgrammableꢀmodelsꢀ(8463,ꢀ8465,ꢀ8466) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
OꢆERATION & ꢆROgRAꢅꢅINg  
Operation (all models)  
•ꢀSelectꢀsystemꢀmodeꢀ(HEAT/COOL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
•ꢀChangeꢀtemperatureꢀsetting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
•ꢀSelectꢀfanꢀsettingꢀ(ON/AUTO/CIRC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
•ꢀResetꢀserviceꢀreminderꢀmessages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
•ꢀBatteryꢀinstallationꢀandꢀResetꢀButton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
roꢇrammable models only (8463, 8465, 8466)  
•ꢀSetꢀtimeꢀandꢀday . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
•ꢀUnderstandingꢀprogramꢀschedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
•ꢀProgressiveꢀrecovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
•ꢀChangingꢀprogramꢀschedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
•ꢀProgramꢀscheduleꢀoverridesꢀ(temporary,ꢀpermanent) . . . . . . . . . . . . . . . . . . . . . . . 11  
ꢄARRANTꢃ  
Limitedꢀwarranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Warrantyꢀregistration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
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EnergyStar ꢀcompliantꢀtoꢀreduceꢀyourꢀheating/coolingꢀ  
            
            
                                                        
                                                        
AꢀOUT ꢃOUR NEꢄ THERꢅOSTAT  
THERꢅOSTAT ꢂEATURES  
All 8400 series thermostats  
HOꢄ TO IDENTIꢂꢃ ꢃOUR THERꢅOSTAT’S  
ODEꢁ NUꢅꢀER  
Toꢀlocateꢀtheꢀmodelꢀnumber,ꢀremoveꢀtheꢀbatteryꢀcover.  
Large,ꢀclear,ꢀbacklitꢀdisplayꢀisꢀeasyꢀtoꢀreadꢀ–ꢀevenꢀinꢀ  
theꢀdark  
MODELꢀ  
NUMBER  
Displaysꢀroomꢀtemperature,ꢀtemperatureꢀsetting,ꢀandꢀ  
optionalꢀoutdoorꢀtemperature  
•ꢀ  
•ꢀ  
•ꢀ  
•ꢀ  
Frontꢀbatteryꢀdoorꢀaccessꢀforꢀfast,ꢀeasyꢀreplacement  
Builtꢀinꢀcompressorꢀprotection  
Circulationꢀfanꢀmodeꢀforꢀairꢀcleaning  
Airꢀfilter,ꢀhumidifier,ꢀdehumidifier,ꢀandꢀHVACꢀserviceꢀ  
indicators  
Autoꢀbacklightꢀ(activatedꢀwithꢀfirstꢀbuttonꢀpress)  
roꢇrammable models only (8463, 8465, 8466)  
odel 8444ꢀ  
odel 8446ꢀ  
odel 8448ꢀ  
Separatelyꢀprogrammableꢀweekday/weekendꢀ  
schedules  
Easyꢀtoꢀuseꢀtemperatureꢀcontrolꢀcanꢀoverrideꢀprogramꢀ  
scheduleꢀatꢀanyꢀtime  
ꢅodel 8463ꢀ  
ꢅodel 8465ꢀ  
ꢅodel 8466ꢀ  
®
expenses  
Progressiveꢀrecovery  
5
/2ꢀDayꢀProgrammable  
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AꢀOUT ꢃOUR NEꢄ THERꢅOSTAT – NON-ꢆROgRAꢅꢅAꢀꢁE ꢅODEꢁS  
CONTROꢁS & DISꢆꢁAꢃ OVERVIEꢄ – ꢅODEꢁS 8444, 8446, 8448  
CURRENTꢀINDOORꢀTEMPERATURE  
OUTDOORꢀTEMPERATUREꢀ(OPTIONAL)  
TEMPERATUREꢀSETTINꢂ  
SꢃSTEMꢀMODEꢀ  
SETTINꢂ  
EQUIPMENTꢀSTATUS  
SꢃSTEMꢀMODEꢀ  
UP  
(
PAꢂEꢀ6)  
FANꢀSETTINꢂꢀ  
PAꢂEꢀ7)  
DOWN  
(
HEAT ꢆUꢅꢆ ꢅODEꢁS ONꢁꢃ  
EMERꢂENCꢃꢀHEATꢀ(RED)  
SꢃSTEMꢀFAULTꢀ(ꢃELLOW)  
FANꢀSETTINꢂ  
INDICATORꢀSHOWSꢀTHROUꢂHꢀHOUSINꢂ  
QUICꢁꢀREFERENCEꢀCARD  
BATTERꢃꢀDOOR  
MESSAꢂEꢀCENTER  
LOWꢀBATTERꢃꢀWARNINꢂꢀ(PAꢂEꢀ7)  
NOTE:ꢀBACꢁLIꢂHTꢀISꢀACTIVATEDꢀWITHꢀFIRSTꢀBUTTONꢀPRESSꢀANDꢀAUTOMATICALLꢃꢀTURNSꢀOFF.  
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AꢀOUT ꢃOUR NEꢄ THERꢅOSTAT – ꢆROgRAꢅꢅAꢀꢁE ꢅODEꢁS  
CONTROꢁS & DISꢆꢁAꢃ OVERVIEꢄ – ꢅODEꢁS 8463, 8465, 8466  
CURRENTꢀINDOORꢀTEMPERATURE  
CURRENTꢀTIME  
OUTDOORꢀTEMPERATUREꢀ(OPTIONAL)  
TEMPERATUREꢀSETTINꢂ  
SꢃSTEMꢀMODEꢀ  
SETTINꢂ  
EQUIPMENTꢀSTATUS  
UP  
FANꢀSETTINꢂ  
SꢃSTEMꢀMODEꢀ  
(
PAꢂEꢀ6)  
DOWN  
FANꢀSETTINꢂꢀ  
PAꢂEꢀ7)  
(
HOLD  
PROꢂRAM  
HEAT ꢆUꢅꢆ ꢅODEꢁS ONꢁꢃ  
EMERꢂENCꢃꢀHEATꢀ(RED)  
SꢃSTEMꢀFAULTꢀ(ꢃELLOW)  
CURRENTꢀ  
SCHEDULEꢀ  
PERIOD  
INDICATORꢀSHOWSꢀTHROUꢂHꢀHOUSINꢂ  
(
PAꢂEꢀ8)  
QUICꢁꢀREFERENCEꢀCARD  
BATTERꢃꢀDOOR  
MESSAꢂEꢀCENTER  
LOWꢀBATTERꢃꢀWARNINꢂꢀ(PAꢂEꢀ7)  
NOTE:ꢀBACꢁLIꢂHTꢀISꢀACTIVATEDꢀWITHꢀFIRSTꢀBUTTONꢀPRESSꢀANDꢀAUTOMATICALLꢃꢀTURNSꢀOFF.  
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OꢆERATION – Aꢁꢁ ꢅODEꢁS  
SEꢁECT SꢃSTEꢅ ꢅODE  
CHANgE TEꢅꢆERATURE SETTINg  
(
Oꢂꢂ/HEAT/Eꢅ-HEAT/COOꢁ/AUTO)  
Appliesꢀtoꢀprogrammableꢀversionsꢀ(8463,ꢀ8465,ꢀ8466)ꢀ  
whenꢀinꢀHOLDꢀmode.  
ress  
ꢀtoꢀselect:  
AUTO:ꢀThermostatꢀautomaticallyꢀselectsꢀheatingꢀorꢀ  
coolingꢀdependingꢀonꢀtheꢀindoorꢀtemperature.ꢀ  
ꢆress  
ꢀorꢀ  
ꢀtoꢀadjustꢀtheꢀcurrentꢀsetting.ꢀ  
InꢀAUTOꢀuseꢀ  
COOLꢀsetting.  
ꢀtoꢀswitchꢀbetweenꢀtheꢀHEATꢀandꢀ  
Oꢂꢂ:ꢀHeatingꢀandꢀcoolingꢀsystemsꢀareꢀoff.  
HEAT:ꢀThermostatꢀcontrolsꢀonlyꢀtheꢀheatingꢀsystem.  
COOꢁ:ꢀThermostatꢀcontrolsꢀonlyꢀtheꢀcoolingꢀsystem.  
Eꢅ-HEAT:ꢀThermostatꢀcontrolsꢀemergency/auxiliaryꢀ  
heat.ꢀHeatꢀpumpꢀwillꢀnotꢀoperate.ꢀ(onlyꢀforꢀheatꢀpumpsꢀ  
withꢀauxiliaryꢀheatꢀonꢀmodelsꢀ8446,ꢀ8465,ꢀandꢀ8466)  
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OꢆERATION – Aꢁꢁ ꢅODEꢁS  
SEꢁECT ꢂAN SETTINg (ON/AUTO/CIRC)  
RESET SERVICE REꢅINDER ꢅESSAgES  
ress and hold ꢀandꢀ ꢀtogetherꢀforꢀthreeꢀ  
secondsꢀtoꢀresetꢀaꢀserviceꢀreminderꢀmessage.  
ATTERꢃ INSTAꢁꢁATION AND RESET ꢀUTTON  
RESET  
BUTTON  
ress  
ꢀtoꢀselect:  
ON:ꢀFanꢀrunsꢀcontinuously.ꢀUseꢀthisꢀmodeꢀforꢀmaximumꢀ  
airꢀcirculation/airꢀcleaning.  
AUTO:ꢀFanꢀrunsꢀonlyꢀwhenꢀtheꢀheatingꢀorꢀcoolingꢀ  
systemꢀisꢀon.  
TheꢀthermostatꢀcanꢀeitherꢀbeꢀACꢀorꢀbatteryꢀpowered,ꢀorꢀ  
both.ꢀWhenꢀwiredꢀtoꢀbeꢀACꢀpowered,ꢀtheꢀbatteriesꢀareꢀ  
optionalꢀandꢀonlyꢀprovideꢀbackupꢀpowerꢀtoꢀtheꢀclock.  
CIRC:ꢀSameꢀasꢀAUTO,ꢀbutꢀifꢀtheꢀfanꢀhasꢀbeenꢀoffꢀforꢀ20ꢀ  
minutesꢀtheꢀfanꢀwillꢀbeꢀactivatedꢀforꢀaꢀ10ꢀminuteꢀcycle.ꢀ  
Useꢀthisꢀmodeꢀforꢀaꢀbalanceꢀofꢀenergyꢀsavingsꢀandꢀairꢀ  
circulation/cleaning.  
Theꢀthermostatꢀhasꢀaꢀmemoryꢀbackupꢀthatꢀsavesꢀtheꢀ  
thermostat’sꢀsettingsꢀinꢀcaseꢀofꢀaꢀpowerꢀinterruption.ꢀ  
Theꢀresetꢀbuttonꢀlocatedꢀunderꢀtheꢀbatteryꢀcoverꢀcanꢀbeꢀ  
usedꢀtoꢀresetꢀtheꢀthermostatꢀbackꢀtoꢀfactoryꢀdefaults.  
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OꢆERATION & ꢆROgRAꢅꢅINg – ꢆROgRAꢅꢅAꢀꢁE ꢅODEꢁS ONꢁꢃ (8463, 8465, 8466)  
SET TIꢅE AND DAꢃ  
UNDERSTANDINg ꢆROgRAꢅ SCHEDUꢁES  
1
ꢆress  
ꢀtoꢀenterꢀtimeꢀsettingꢀmode.ꢀHourꢀandꢀ  
Theꢀdailyꢀscheduleꢀisꢀsplitꢀintoꢀfourꢀsections:  
AM/PMꢀareꢀflashing.  
AKE:ꢀ6am-8amꢀ–ꢀTemperatureꢀyouꢀwouldꢀpreferꢀtoꢀ  
wakeꢀupꢀto,ꢀuntilꢀyouꢀleaveꢀforꢀtheꢀday.  
EAVE:ꢀ8am-5pmꢀ–ꢀTemperatureꢀwhenꢀyouꢀareꢀawayꢀ  
fromꢀtheꢀhouseꢀduringꢀtheꢀday.  
RETURN:ꢀ5pm-10pmꢀ–ꢀTemperatureꢀyouꢀwouldꢀpreferꢀtoꢀ  
returnꢀto,ꢀuntilꢀbedtime.  
SꢁEEꢆ:ꢀ10pm-6amꢀ–ꢀTemperatureꢀyouꢀwouldꢀpreferꢀ  
duringꢀtheꢀnight.  
Theꢀtimesꢀshownꢀareꢀtheꢀdefaults.ꢀTheꢀstartꢀtimeꢀandꢀ  
temperatureꢀofꢀeachꢀsectionꢀcanꢀbeꢀchangedꢀtoꢀfitꢀyourꢀ  
scheduleꢀ(seeꢀpageꢀ10).ꢀ  
2
3
ꢆress  
ꢆress  
ꢀorꢀ ꢀtoꢀadjustꢀtheꢀhour.  
,ꢀtheꢀminutesꢀflash.ꢀꢆress  
toꢀadjustꢀtheꢀminutes.  
,ꢀtheꢀdayꢀflashes.ꢀꢆress  
toꢀadjustꢀday.  
ꢀtoꢀend.ꢀ“DONE”ꢀwillꢀdisplay.  
®
Thisꢀthermostatꢀisꢀpre-setꢀtoꢀuseꢀEnergyStar ꢀprogramꢀ  
ꢀorꢀ  
ꢀorꢀ  
settingsꢀ(seeꢀtheꢀchartꢀthatꢀfollows).ꢀWeꢀrecommendꢀ  
theseꢀsettings,ꢀsinceꢀtheyꢀcanꢀreduceꢀyourꢀheating/  
coolingꢀexpenses.ꢀ  
4
5
.ꢀꢆress  
.ꢀꢆress  
Theꢀthermostatꢀwillꢀreturnꢀtoꢀnormalꢀmodeꢀifꢀnoꢀkeyꢀisꢀ  
pressedꢀwithinꢀ3ꢀseconds.ꢀ  
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OꢆERATION & ꢆROgRAꢅꢅINg – ꢆROgRAꢅꢅAꢀꢁE ꢅODEꢁS ONꢁꢃ (8463, 8465, 8466)  
UNDERSTANDINg ꢆROgRAꢅ SCHEDUꢁES (CONTINUED)  
Set temps  
Event  
Event desiꢇnator  
WAꢁE  
Start time  
6:00AM  
8:00AM  
5:00PM  
Heat  
Cool  
1
2
3
4
70°Fꢀ(21°C)  
62°Fꢀ(17°C)  
70°Fꢀ(21°C)  
62°Fꢀ(17°C)  
78°Fꢀ(26°C)  
85°Fꢀ(29°C)  
78°Fꢀ(26°C)  
82°Fꢀ(28°C)  
LEAVE  
RETURN  
SLEEP  
10:00PM  
ROgRESSIVE RECOVERꢃ  
TheꢀProgressiveꢀRecoveryꢀfeatureꢀallowsꢀtheꢀthermostatꢀ  
toꢀactivateꢀtheꢀheatingꢀandꢀcoolingꢀequipmentꢀpriorꢀtoꢀ  
anꢀeventꢀinꢀorderꢀtoꢀreachꢀtheꢀdesiredꢀtemperatureꢀatꢀ  
theꢀstartꢀofꢀtheꢀnextꢀscheduledꢀevent.  
Example:  
SetꢀtheꢀWakeꢀtimeꢀtoꢀ6ꢀam,ꢀandꢀtheꢀtemperatureꢀtoꢀ70°.ꢀ  
Theꢀheatꢀwillꢀcomeꢀonꢀbeforeꢀ6ꢀam,ꢀsoꢀtheꢀtemperatureꢀ  
isꢀ70°ꢀbyꢀtheꢀtimeꢀyouꢀwakeꢀatꢀ6.  
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OꢆERATION & ꢆROgRAꢅꢅINg – ꢆROgRAꢅꢅAꢀꢁE ꢅODEꢁS ONꢁꢃ (8463, 8465, 8466)  
CHANgINg ꢆROgRAꢅ SCHEDUꢁES  
1
ꢆress ꢀtwiceꢀtoꢀenterꢀprogramꢀsettingꢀmode.ꢀ  
StartꢀtimeꢀofꢀtheꢀWAꢁEꢀeventꢀisꢀflashing.  
4
.ꢀꢆress  
,ꢀCOOLꢀsettingꢀflashes.ꢀꢆress  
ꢀorꢀ  
toꢀadjustꢀtheꢀcoolꢀsetting.  
2
3
ꢆress  
ꢆress  
ꢀorꢀ  
ꢀtoꢀadjustꢀtheꢀstartꢀtimeꢀ  
5.ꢀꢆress  
stepsꢀ2-5ꢀforꢀLEAVE,ꢀRETURNꢀandꢀSLEEPꢀevents.  
6.ꢀꢆress ꢀtoꢀchangeꢀtoꢀweekendꢀprogram.ꢀRepeatꢀ  
stepsꢀ2-4ꢀforꢀtheꢀweekendꢀprogram.  
ꢆress ꢀtoꢀend.ꢀ“DONE”ꢀwillꢀdisplay.ꢀ  
ꢀtoꢀadvanceꢀtheꢀnextꢀevent,ꢀandꢀrepeatꢀ  
,ꢀHEATꢀsettingꢀflashes.ꢀꢆress  
toꢀadjustꢀtheꢀheatꢀsetting.  
ꢀorꢀ  
7
Theꢀthermostatꢀwillꢀreturnꢀtoꢀnormalꢀmodeꢀifꢀnoꢀkeyꢀisꢀ  
pressedꢀinꢀ3ꢀseconds.ꢀ  
1
0
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OꢆERATION & ꢆROgRAꢅꢅINg – ꢆROgRAꢅꢅAꢀꢁE ꢅODEꢁS ONꢁꢃ (8463, 8465, 8466)  
ROgRAꢅ SCHEDUꢁE OVERRIDES (TEꢅꢆORARꢃ, ꢆERꢅANENT)  
Temporary proꢇram override ꢆermanent proꢇram override  
ress  
ꢀorꢀ  
ꢀtoꢀimmediatelyꢀadjustꢀtheꢀ  
ꢆress  
ꢀtoꢀpermanentlyꢀholdꢀtheꢀtemperatureꢀatꢀ  
temperature.ꢀThisꢀwillꢀtemporarilyꢀoverrideꢀtheꢀ  
itsꢀcurrentꢀsetting.ꢀThisꢀwillꢀoverrideꢀtheꢀtemperatureꢀ  
settingsꢀforꢀallꢀtimeꢀperiodsꢀofꢀtheꢀprogrammedꢀ  
schedule.ꢀWithꢀtheꢀthermostatꢀinꢀpermanentꢀoverrideꢀtheꢀ  
thermostatꢀtemperatureꢀcanꢀbeꢀmanuallyꢀadjustedꢀandꢀ  
willꢀstayꢀatꢀthatꢀsettingꢀuntilꢀtheꢀoverrideꢀisꢀcancelled.  
temperatureꢀsettingꢀforꢀtheꢀcurrentꢀprogrammedꢀtimeꢀ  
period.ꢀTheꢀnewꢀtemperatureꢀsettingꢀwillꢀbeꢀmaintainedꢀ  
untilꢀtheꢀnextꢀtimeꢀperiodꢀofꢀtheꢀprogrammedꢀschedule.ꢀ  
Toꢀcancelꢀtheꢀtemporaryꢀoverride,ꢀadjustꢀtheꢀtemperatureꢀ  
settingꢀbackꢀtoꢀtheꢀprogrammedꢀtemperature.  
Toꢀcancelꢀtheꢀpermanentꢀoverrideꢀpress  
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EꢁECTRONIC THERꢅOSTAT ꢂIVE ꢃEAR ꢁIꢅITED ꢄARRANTꢃ  
®
ourꢀResearchꢀProductsꢀCorporationꢀAprilaire ꢀThermostatꢀunitꢀisꢀexpresslyꢀwarrantedꢀforꢀfiveꢀ(5)ꢀyearsꢀfromꢀdateꢀofꢀinstallationꢀtoꢀbeꢀfreeꢀfromꢀ  
defectsꢀinꢀmaterialsꢀorꢀworkmanship.ꢀ  
ResearchꢀProductsꢀCorporation’sꢀexclusiveꢀobligationꢀunderꢀthisꢀwarrantyꢀshallꢀbeꢀtoꢀsupply,ꢀwithoutꢀcharge,ꢀaꢀreplacementꢀforꢀanyꢀthermostatꢀ  
whichꢀisꢀfoundꢀtoꢀbeꢀdefectiveꢀwithinꢀsuchꢀfiveꢀ(5)ꢀyearꢀperiodꢀandꢀwhichꢀisꢀreturned,ꢀtogetherꢀwithꢀtheꢀdateꢀofꢀinstallation,ꢀnoꢀlaterꢀthanꢀthirtyꢀ(30)ꢀ  
daysꢀafterꢀsaidꢀfiveꢀ(5)ꢀyearꢀperiodꢀbyꢀyouꢀtoꢀeitherꢀyourꢀoriginalꢀsupplierꢀorꢀtoꢀResearchꢀProductsꢀCorporation,ꢀMadison,ꢀWisconsinꢀ53701.  
THISꢀWARRANTꢃꢀSHALLꢀNOTꢀOBLIꢂATEꢀRESEARCHꢀPRODUCTSꢀCORPORATIONꢀFORꢀANꢃꢀLABORꢀCOSTSꢀANDꢀSHALLꢀNOTꢀAPPLꢃꢀTOꢀDEFECTSꢀINꢀ  
WORꢁMANSHIPꢀORꢀMATERIALSꢀFURNISHEDꢀBꢃꢀꢃOURꢀINSTALLERꢀASꢀCONTRASTEDꢀTOꢀDEFECTSꢀINꢀTHEꢀTHERMOSTATꢀITSELF.  
IMPLIEDꢀWARRANTIESꢀOFꢀMERCHANTABILITꢃꢀOFꢀFITNESSꢀFORꢀAꢀPARTICULARꢀPURPOSEꢀSHALLꢀBEꢀLIMITEDꢀINꢀDURATIONꢀTOꢀTHEꢀAFORESAIDꢀ  
FIVEꢀ ꢃEARꢀ PERIOD.ꢀ RESEARCHꢀ PRODUCTSꢀ CORPORATION’Sꢀ LIABILITꢃꢀ FORꢀ INCIDENTALꢀ ORꢀ CONSEQUENTIALꢀ DAMAꢂES,ꢀ OTHERꢀ THANꢀ  
DAMAꢂESꢀFORꢀPERSONALꢀINJURIES,ꢀRESULTINꢂꢀFROMꢀANꢃꢀBREACHꢀOFꢀTHEꢀAFORESAIDꢀIMPLIEDꢀWARRANTIESꢀORꢀTHEꢀABOVEꢀLIMITEDꢀ  
WARRANTꢃꢀISꢀEXPRESSLꢃꢀEXCLUDED.ꢀTHISꢀLIMITEDꢀWARRANTꢃꢀISꢀVOIDꢀIFꢀDEFECT(S)ꢀRESULTꢀFROMꢀFAILUREꢀTOꢀHAVEꢀTHISꢀTHERMOSTATꢀ  
INSTALLEDꢀBꢃꢀAꢀQUALIFIEDꢀHEATINꢂꢀANDꢀAIRꢀCONDITIONINꢂꢀCONTRACTOR.ꢀIFꢀTHEꢀLIMITEDꢀWARRANTꢃꢀISꢀVOIDꢀDUEꢀTOꢀFAILUREꢀTOꢀUSEꢀAꢀ  
QUALIFIEDꢀCONTRACTOR,ꢀALLꢀDISCLAIMERSꢀOFꢀIMPLIEDꢀWARRANTIESꢀSHALLꢀBEꢀEFFECTIVEꢀUPONꢀINSTALLATION.  
Someꢀstatesꢀdoꢀnotꢀallowꢀlimitationsꢀonꢀhowꢀlongꢀanꢀimpliedꢀwarrantyꢀlastsꢀorꢀtheꢀexclusionꢀorꢀlimitationꢀofꢀincidentalꢀorꢀconsequentialꢀdamages,ꢀ  
soꢀtheꢀaboveꢀexclusionsꢀorꢀlimitationsꢀmayꢀnotꢀapplyꢀtoꢀyou.  
Thisꢀwarrantyꢀgivesꢀyouꢀspecificꢀlegalꢀrightsꢀandꢀyouꢀmayꢀalsoꢀhaveꢀotherꢀrightsꢀwhichꢀvaryꢀfromꢀstateꢀtoꢀstate.ꢀ  
Thisꢀequipmentꢀifꢀinstalledꢀinꢀstrictꢀaccordanceꢀwithꢀtheꢀmanufacturer’sꢀinstructions,ꢀcompliesꢀwithꢀtheꢀlimitsꢀforꢀaꢀClassꢀBꢀcomputingꢀdeviceꢀ  
pursuantꢀtoꢀSubpartꢀJꢀofꢀPartꢀ15ꢀofꢀFCCꢀRules.  
ꢄARRANTꢃ REgISTRATION  
Please…Takeꢀaꢀfewꢀminutesꢀtoꢀvisitꢀusꢀon-lineꢀatꢀwww.aprilaire.comꢀtoꢀregisterꢀyourꢀAprilaireꢀproduct.  
Ifꢀyouꢀdoꢀnotꢀhaveꢀon-lineꢀaccess,ꢀpleaseꢀmailꢀaꢀpostcardꢀwithꢀyourꢀname,ꢀaddress,ꢀphoneꢀnumber,ꢀproductꢀpurchasedꢀ  
andꢀdateꢀofꢀpurchaseꢀto:ꢀResearchꢀProductsꢀCorporation,ꢀP.O.ꢀBOXꢀ1467,ꢀMadison,ꢀWIꢀ53701  
ꢃour ꢄarranty Reꢇistration information will not be sold or shared outside of this company.  
RESEARCHꢀPRODUCTSꢀCORPORATION  
P.O.ꢀBOXꢀ1467ꢀ•ꢀMADISON,ꢀWIꢀ53701-1467ꢀ•ꢀwww.aprilaire.com  
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