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
2
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-programmablemodels(8444,8446,8448).....................................................22
•Programmablemodels(8463,8465,8466).........................................................23
Thermostat features .............................................................................24
Troubleshooting .................................................................................25
Specifications...................................................................................27
61000652C 8400 Tstat Install.indd 2 10/13/09 11:08:56 AM
3
INSTALLATION
INSTALLATION LOCATION RECOMMENDATIONS
Thermostat should be mounted:
•Onaninteriorwall,inafrequentlyoccupiedspace.
•Approximately5‘abovefloor.
•Atleast18”fromoutsidewall.
•Thermostatcanbemountedtoaverticaljunctionbox.
Do not mount thermostat:
•Behinddoors,incorners,orotherdeadairspaces.
•Indirectsunlight,nearlightingfixtures,orother
appliancesthatgiveoffheat.
•Onanoutsideorunconditionedareawall.
•Intheflowofasupplyregister,instairwells,ornear
outside doors.
•Onawallwithconcealedpipesorductwork.
61000652C 8400 Tstat Install.indd 3 10/13/09 11:08:57 AM
4
OUTDOOR TEMPERATURE SENSOR (OPTIONAL)
Outdoortemperaturecanbemeasuredbyattachingan
8052sensortotheS1andS2terminals.Systemsetting
#05(Remotesensor)isusedtoenablesensor.
Heat pump models can use the outdoor temperature to
effectivelyutilizetheheatpump:
•WhentheoutdoortemperatureislessthantheLow
BalancePoint,theheatpumpwillbelockedoutand
onlyauxiliaryheatingwillbeused.
•WhentheoutdoortemperatureishigherthantheHigh
BalancePoint,theauxiliaryheatingwillbelockedout
andonlytheheatpumpwillbeusedtoprovideheating.
INSTALLATION
C
G
Y
W
RL
S1 S2 O/B W2 Y2
RC
•Installonsideofbuildingoutofdirectsunlight
(north side recommended).
•Mountabovesnowline.
•Mountatleast3’awayfromexhaustventsand
condensing lines.
•Maximumwirelengthis300’.
•Donotroutewiresalong120VAClines.
61000652C 8400 Tstat Install.indd 4 10/13/09 11:08:57 AM
5
THERMOSTAT MOUNTING
1.Removethebackofthethermostat,bypressingthe
tabonthebottomoftheunit.
2.Pullwiresthroughtheopeningonthebackofthe
thermostat.
3.Positionandlevelthebackofthethermostatonwall
and mark the hole locations with a pencil.
4.Drill1/4”holes&insertsuppliedanchors(drywallonly).
5.Placebackoveranchors,insertandtightenscrews.
6.Sealwireentryholestopreventdraftsaffecting
temperature readings.
INSTALLATION
POWER & RESET OPTIONS
Thethermostatisdualpower.ItcaneitherbeACor
batterypowered,orboth(toprovidebackuppowerfor
theclock).Batteriesareoptionalifthethermostatwas
connectedtoACpowerwheninstalled.
Forheatpumpmodels(8446,8448HP,8465,8466HP)
24VACmustbeconnectedinorderforthesystemfault
and emergency heat indicators to operate.
Thethermostathasamemorybackupthatsavesthe
thermostat’ssettingsincaseofapowerinterruption.
Theresetbuttonlocatedunderthebatterycovercanbe
usedtoresetthethermostatbacktofactorydefaults.
Thesystemsettingswillalsoberesetbacktodefaults.
61000652C 8400 Tstat Install.indd 5 10/13/09 11:08:58 AM
6
WIRING TERMINAL
Wire specifications
18-24gaugethermostatwire
Installation notes
•EnsurepowerattheHVACequipmentisoff.
•Loosenscrewterminals,insertstrippedwireand
re-tighten.
•Pushtheexcesswirebackintotheopeningandplug
thewallopeningtopreventdrafts.
INSTALLATION
RC–24VACsupplycooling*
R–24VACsupplyheating*
W–1ststageheat/auxiliary
Y–1ststagecooling/compressor
G– Fan
C–Common(optionalwhenpoweredbybatteries)
S1 & S2 – outdoor temperature sensor (optional)
O/B–Reversingvalve
L– System fault indicator
W2–2ndstageheat/auxiliary
Y2–2ndstagecooling/compressor
*Jumper between RC & R is used in single transformer systems
(see wiring diagrams).
C
G
Y
W
RL
S1 S2 O/B W2 Y2
RC
61000652C 8400 Tstat Install.indd 6 10/13/09 11:08:58 AM
7
WIRING – MODEL 8463 & 8444 SINGLE
TRANSFORMER (USE JUMPER WIRE)
INSTALLATION
C
G
Y
W
RS1 S2
RC
HEATING
COOLING
FAN
OUTDOOR TEMP
SENSOR
JUMPER
TRANSFORMER
WIRING – MODEL 8463 & 8444 TWO
TRANSFORMERS (REMOVE JUMPER WIRE)
C
G
Y
W
RS1 S2
RC
HEATING
COOLING
FAN
OUTDOOR TEMP
SENSOR
HEATING
TRANSFORMER
COOLING
TRANSFORMER
61000652C 8400 Tstat Install.indd 7 10/13/09 11:08:58 AM
8
WIRING – MODEL 8465 & 8446 SINGLE
TRANSFORMER (USE JUMPER WIRE)
INSTALLATION
AUX HEATING
COMPRESSOR
FAN
REVERSE VALVE
FAULT DETECT
OUTDOOR TEMP
SENSOR
JUMPER
TRANSFORMER
C
G
Y
W
RL
S1 S2 O/B
RC
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
C
G
Y
W
RL
S1 S2 O/B
RC
61000652C 8400 Tstat Install.indd 8 10/13/09 11:08:58 AM
9
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
NOT USED
JUMPER
TRANSFORMER
C
G
Y
W
RL
S1 S2 O/B W2 Y2
RC
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
NOT USED
HEATING
TRANSFORMER
COOLING
TRANSFORMER
C
G
Y
W
RL
S1 S2 O/B W2 Y2
RC
61000652C 8400 Tstat Install.indd 9 10/13/09 11:08:58 AM
10
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
C
G
Y
W
RL
S1 S2 O/B W2 Y2
RC
JUMPER
1st AUX HEATING
1st COMPRESSOR
FAN
REVERSE VALVE
FAULT DETECT
2nd AUX HEATING
2nd COMPRESSOR
OUTDOOR TEMP
SENSOR
HEATING
TRANSFORMER
HEAT PUMP
TRANSFORMER
C
G
Y
W
RL
S1 S2 O/B W2 Y2
RC
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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5
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6
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