Aprilaire 8400 series Guide de configuration

8400 Series Thermostats

READ AND SAVE THESE INSTRUCTIONS

Safety &

Installation

Instructions

61000652C 8400 Tstat Install.indd 1 10/13/09 11:08:56 AM

Installation location recommendations................................................................3

Outdoor temperature sensor (optional) ................................................................4

Thermostat mounting..............................................................................5

Power & reset options.............................................................................5

Wiring terminal ..................................................................................6

Wiring diagrams .................................................................................7

TABLE OF CONTENTS

INSTALLATION

SETUP & TESTING

REFERENCES

System setup instructions .........................................................................11

System test mode ...............................................................................16

Quick reference to controls & display

 •Non-programmablemodels(8444,8446,8448).....................................................22

 •Programmablemodels(8463,8465,8466).........................................................23

Thermostat features .............................................................................24

Troubleshooting .................................................................................25

Specifications...................................................................................27

61000652C 8400 Tstat Install.indd 2 10/13/09 11:08:56 AM

INSTALLATION

INSTALLATION LOCATION RECOMMENDATIONS

Thermostat should be mounted:

•Onaninteriorwall,inafrequentlyoccupiedspace.

•Approximately5‘abovefloor.

•Atleast18”fromoutsidewall.

•Thermostatcanbemountedtoaverticaljunctionbox.

Do not mount thermostat:

•Behinddoors,incorners,orotherdeadairspaces.

•Indirectsunlight,nearlightingfixtures,orother

appliancesthatgiveoffheat.

•Onanoutsideorunconditionedareawall.

•Intheflowofasupplyregister,instairwells,ornear

outside doors.

•Onawallwithconcealedpipesorductwork.

61000652C 8400 Tstat Install.indd 3 10/13/09 11:08:57 AM

OUTDOOR TEMPERATURE SENSOR (OPTIONAL)

Outdoortemperaturecanbemeasuredbyattachingan

8052sensortotheS1andS2terminals.Systemsetting

#05(Remotesensor)isusedtoenablesensor.

Heat pump models can use the outdoor temperature to

effectivelyutilizetheheatpump:

•WhentheoutdoortemperatureislessthantheLow

BalancePoint,theheatpumpwillbelockedoutand

onlyauxiliaryheatingwillbeused.

•WhentheoutdoortemperatureishigherthantheHigh

BalancePoint,theauxiliaryheatingwillbelockedout

andonlytheheatpumpwillbeusedtoprovideheating.

INSTALLATION

S1 S2 O/B W2 Y2

•Installonsideofbuildingoutofdirectsunlight

(north side recommended).

•Mountabovesnowline.

•Mountatleast3’awayfromexhaustventsand

condensing lines.

•Maximumwirelengthis300’.

•Donotroutewiresalong120VAClines.

61000652C 8400 Tstat Install.indd 4 10/13/09 11:08:57 AM

THERMOSTAT MOUNTING

1.Removethebackofthethermostat,bypressingthe

tabonthebottomoftheunit.

2.Pullwiresthroughtheopeningonthebackofthe

thermostat.

3.Positionandlevelthebackofthethermostatonwall

and mark the hole locations with a pencil.

4.Drill1/4”holes&insertsuppliedanchors(drywallonly).

5.Placebackoveranchors,insertandtightenscrews.

6.Sealwireentryholestopreventdraftsaffecting

temperature readings.

INSTALLATION

POWER & RESET OPTIONS

Thethermostatisdualpower.ItcaneitherbeACor

batterypowered,orboth(toprovidebackuppowerfor

theclock).Batteriesareoptionalifthethermostatwas

connectedtoACpowerwheninstalled.

Forheatpumpmodels(8446,8448HP,8465,8466HP)

24VACmustbeconnectedinorderforthesystemfault

and emergency heat indicators to operate.

Thethermostathasamemorybackupthatsavesthe

thermostat’ssettingsincaseofapowerinterruption.

Theresetbuttonlocatedunderthebatterycovercanbe

usedtoresetthethermostatbacktofactorydefaults.

Thesystemsettingswillalsoberesetbacktodefaults.

61000652C 8400 Tstat Install.indd 5 10/13/09 11:08:58 AM

WIRING TERMINAL

Wire specifications

18-24gaugethermostatwire

Installation notes

•EnsurepowerattheHVACequipmentisoff.

•Loosenscrewterminals,insertstrippedwireand

re-tighten.

•Pushtheexcesswirebackintotheopeningandplug

thewallopeningtopreventdrafts.

INSTALLATION

RC–24VACsupplycooling*

R–24VACsupplyheating*

W–1ststageheat/auxiliary

Y–1ststagecooling/compressor

G– Fan

C–Common(optionalwhenpoweredbybatteries)

S1 & S2 – outdoor temperature sensor (optional)

O/B–Reversingvalve

L– System fault indicator

W2–2ndstageheat/auxiliary

Y2–2ndstagecooling/compressor

*Jumper between RC & R is used in single transformer systems

(see wiring diagrams).

S1 S2 O/B W2 Y2

61000652C 8400 Tstat Install.indd 6 10/13/09 11:08:58 AM

WIRING – MODEL 8463 & 8444 SINGLE

TRANSFORMER (USE JUMPER WIRE)

INSTALLATION

RS1 S2

HEATING

COOLING

FAN

OUTDOOR TEMP

SENSOR

JUMPER

TRANSFORMER

WIRING – MODEL 8463 & 8444 TWO

TRANSFORMERS (REMOVE JUMPER WIRE)

RS1 S2

HEATING

COOLING

FAN

OUTDOOR TEMP

SENSOR

HEATING

TRANSFORMER

COOLING

TRANSFORMER

61000652C 8400 Tstat Install.indd 7 10/13/09 11:08:58 AM

WIRING – MODEL 8465 & 8446 SINGLE

TRANSFORMER (USE JUMPER WIRE)

INSTALLATION

AUX HEATING

COMPRESSOR

FAN

REVERSE VALVE

FAULT DETECT

OUTDOOR TEMP

SENSOR

JUMPER

TRANSFORMER

S1 S2 O/B

WIRING – MODEL 8465 & 8446 TWO

TRANSFORMERS (REMOVE JUMPER WIRE)

AUX HEATING

COMPRESSOR

FAN

REVERSE VALVE

FAULT DETECT

OUTDOOR TEMP

SENSOR

AUX HEATING

TRANSFORMER

HEAT PUMP

TRANSFORMER

S1 S2 O/B

61000652C 8400 Tstat Install.indd 8 10/13/09 11:08:58 AM

WIRING – MODEL 8466 & 8448 SINGLE

TRANSFORMER (USE JUMPER WIRE)

FOR HEAT/COOL SYSTEM

INSTALLATION

1st HEATING

1st COOLING

FAN

2nd HEATING

2nd COOLING

OUTDOOR TEMP

SENSOR

NOT USED

JUMPER

TRANSFORMER

S1 S2 O/B W2 Y2

WIRING – MODEL 8466 & 8448 TWO

TRANSFORMERS (REMOVE JUMPER WIRE)

FOR HEAT/COOL SYSTEM

1st HEATING

1st COOLING

FAN

2nd HEATING

2nd COOLING

OUTDOOR TEMP

SENSOR

NOT USED

HEATING

TRANSFORMER

COOLING

TRANSFORMER

S1 S2 O/B W2 Y2

61000652C 8400 Tstat Install.indd 9 10/13/09 11:08:58 AM

INSTALLATION

WIRING – MODEL 8466 & 8448 SINGLE

TRANSFORMER (USE JUMPER WIRE)

FOR HEAT PUMP SYSTEM

1st AUX HEATING

1st COMPRESSOR

FAN

REVERSE VALVE

FAULT DETECT

2nd AUX HEATING

2nd COMPRESSOR

OUTDOOR TEMP

SENSOR

HEAT PUMP

TRANSFORMER

S1 S2 O/B W2 Y2

JUMPER

1st AUX HEATING

1st COMPRESSOR

FAN

REVERSE VALVE

FAULT DETECT

2nd AUX HEATING

2nd COMPRESSOR

OUTDOOR TEMP

SENSOR

HEATING

TRANSFORMER

HEAT PUMP

TRANSFORMER

S1 S2 O/B W2 Y2

WIRING – MODEL 8466 & 8448 TWO

TRANSFORMERS (REMOVE JUMPER WIRE)

FOR HEAT PUMP SYSTEM

61000652C 8400 Tstat Install.indd 10 10/13/09 11:08:59 AM

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