Aprilaire 8846 User manual

ELECTRONICTHERMOSTAT

COMMUNICATING THERMOSTAT SYSTEMINSTALLATION MANUAL

A. GET ALL THE COMPONENTS YOU WILL NEED

ILLU.sTRATION1- APRILAIREBYACAUTOMA110NSYSTEMCOMPONENTS

B. DISCONNECI POWER TO THE HVAC SYSTEMS

C. LOCATE AND MOUNT THE COMPONENTS

ILLU.sTRA110N 2 - LOCATE AND MOUNT THE COMPONENTS

DIAGRAM1- APRlLAIRESYSTEMCOMPONENTSINTER-CONNEC170NS

D. RUN ALL REQUIRED WIRES

ILLUSTRA110N3- RUN WIREFORTHESYSTEM

E. CONNECTTHE HVAC/ZONESYSTEMCONTROLWIRES

DIAGRAM2- BYAC CONTROL WIRING

F. ADDRESSEACH COMMUNICATION CARD

ILLUSTRA110N4- ADDRESSCOMMUNlCA110NCARDS

G.CONNECTTHE COMMUNICATIONWIRES

DIAGRAM 3 - COMMUNlCA110N WIRING WITH COMMUNICA110N CARD

IN COMMUNlCA110N PANEL

DIAGRAM 4 -COMMVNICA110N WIRING WITH COMMUNlCA110N CARD

IN SUB-BASE

H. INSTALL THEPROTOCOLADAPTER

ILL USTRA110N 5 - CONNECT THE PROTOCOL ADAPTER

I. PROVIDE POWER TO THE COMMUNICATION PANEL

ILLUSTRATION 6 -PROVIDE POWER TO THE COMMUNlCA110N PANEL

J. POWER UP ALL HVAC EQUIPMENT AND THERMOSTATS

ILLUSTRA110N7- POWERTHERMOSTATSONEATA 11MB

K. CHECKOUT HVAC SYSTEM OPERATION

L. SETUP COMPUTER FOR COMMUNICATIONS CHECKOUT

Me CHECKOUT COMMUNICATIONS TO EACH THERMOSTAT

N. TROUBLE SHOOTING

ILL USTRA110N15- TROUBLESHOOTING

o. OPTIONAL- INSTALL AUXILIARY INPUTS/OUTPUTS

ILL USTRA110N 16- AUXILIARY DIGITAL INPUTS AND OUTPUTS

P. OPTIONAL- INSTALL AUTOMATIONSYSTEMSOFfWAREPACKAGE

ILLU.sTRA110N17-EXAMPLEOF COMPLETEDINTER-CONNEC110NDIAGRAM

APRn..ARECOMMANDSET

SYSTEMWIRING SCHEMATIC- COMMUNICATION CARDSIN PANEL

SYSTEM WIRING SCHEMATIC - COMMUNICATION CARD IN SUB-BASE

EXTRA INTER-CONNECTION DIAGRAMS

APRILAIRE COMMUNICATING THERMOSTAT SYSTEM INSTALLATION MANUAL

A. GETALL THEITEMSYou Wn.L NEED

Componentsyouwill need...(seeDlustration 1onpage2)

. OneAprilaire8 CommunicatingThennostatfor eachzoneorsinglezoneHVAC system(seeTHERMOSTAT

GUIDE below)

. OneAprilaire CommunicationPanelpereight(8)thermostatsin thesystem(seeCOMMUNICATION

PANEL GUIDE below)

. OneApriIaire ProtocolAdapter(partnumber8811)per32thermostats

. 4 to 8conductorthermostatcabledependingonequipmentstages(18- 20gauge)

. Category5communicationwire (4-pairtwistedcableavailablethroughResearchProducts-partno.8026)

. One24V AC transfonner,ungrounded(partnumber8027)

. Computerwith Windows'95, '98 orWindowsNT andProationStat*PlusHVAC Automationsoftwareor an

RS-232or RS-485basedautomationsystem.

. OP1l0NAL: Model 8041RemoteTemperatureSensor,Model 8044RemoteHumidity Sensor,Model 8040

IndoorTemperatureControlSensor,Model8043Humidity ControlSensor,Model8025OutputCard

Toolsyouwill need...

. Smallflat headscrewdriverfor teInlina1screws(1/8" widetip)

. Mediumsizeflat/phillips headscrewdriverfor componentmountingscrews

. Volt/ohm meter

. Wire strippers

. Smalllevel (useto mountcomponentslevel,requiredfor appearanceonly)

THERMOSTAT GUIDE

MODEL

8844

8846

8847

8848

DESCRIPTION

Singlestageheat,singlestagecool

Singlestageheatpumpwith onestageof auxiliaryheat

Two stageheatpumpwith onestageof auxiliaryheat

Two stageheat,two stagecool

How they communicate

8840seriesthennostatscommunicateto theAprilaire CommunicationCardusingaproprietaryprotocol. Thistype

of communicationshouldnotbetransmittedoverwire runslongerthan300ft. TheCommunicationCard

communicateswith your computeror automationsystem.You musthaveoneCommunicationCardfor each

thermostatandit canbelocatedin oneof twoplaces.Thepreferredlocationisin theAprilaire Comm~rncation

Panel,thealternatelocationisin aModel8809CommunicatingSub-Basewhichmountsbehindthethermostat

Oneof thefunctionsof theconununicationcardistotranslatethecommunicationsignaltoRS-485,whichcanbe

transmittedoverwire lengthsup to4000ft. Useamodel8809CommunicatingSub-Baseonly if theAprilaire

Thermostatis locatedfartherthan300ft. from theCommunicationPanel Alternatively,if multiplethermostatsare

locatedmorethan300feetaway,useaseparateCommunicationPanelfor thedistantthermostatsanddaisychainall

ConununicationPanelsusingtheRS-485bus.

COMMUNICATION PANEL GUIDE

TheCommunicationPanelis aswitchcontrolledcommunicationbusthatcanholdupto eight(8)Aprilaire

CommunicationCards.Thisallowsthermostatcommunication(transmit,receiveorboth)tobeturnedonandoff at

oneconvenientlocationwhichsimplifiesinstallationandtroubleshooting.

Model Number Definition: 880X -The 'X' representsthe number of Communication Cards mounted in the

CommunicationPanelfromzeroto eight(8). OrderoneCommunicationPanelpereightthermostats.

FOR EASEOF INSTALLATION ANDTROUBLE SHOOTINGDO THE FOLLOWING:

Y'" HaveCommunicationCardsmountedin theCommunicationPanelexceptif athermostatistobelocatedfarther

than300ft. away,thenuseaModel 8809Sub-Base.

Y'" UseaCommunicationpanelonall systemswith morethanonezone,evenifusing Model8809Sub-Bases.The

troubleshootingbenefitswill outweighthecostof theCommunicationpanel

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B. DISCONNEcr POWERTOALL BY AC EQUIPMENTAND/ORZoNE CONTROLPANELS

C. LOCATE ANDMOUNT THEAUTOMAnON SYSTEMCOMPONENTS(SEEILLUSTRAnON 2 ONPAGE4)

1. Thermostatsareto belocatedaswouldnonnallybedone.Referto thethermostatinstallationinstructions

for details. ReviewDiagram 1onpage5whichshowshowall thecommunicationcomponentsare

connectedtogetherand~ write downthe location of or a namefor eachthermostat in thesystem.This

will assistin thesoftwareset-up.Additionalcopiesareavailablein thebackof thismanual.

2. Mount thezonecontrolpanel(s)if theHVAC system(s)iszoned.Refertothezonecontrolpanel

installationinstructions.

3. TheAprilaire CommunicationPanelmustbemountedindoorsin anaccessiblelocationsuchasaclosetor

utility room All thennostatswill bewiredtotheCommunicationPanel,soadequateworkspacewill be

important. Mount theCommunicationPanelusingthehardwareprovided. ThereareWireaccessholeson

thetop,bottomandbackof theCommunicationPanel.Theenclosuredoorhingesontheside.

4. TheModel 8811Aprilaire ProtocolAdaptermustbeplacedwithin sixfeetof thehostcomputeror main

automationsystempanel. TheProtocolAdapterdoesnotgetfasteneddown. All thecablesandconnectors

neededto attachtheProtocolAdaptertothecomputerorautomationsystemareincludedwith theadapter.

S. TheModel 8027Plug-inTransformerisusedtopowerthecommunicationsystem.Thetransfonneris

wired to theCommunicationPanel.Locatethistransformerin thesamespaceastheCommunicationPanel

if possible.

D. RUNTHEREQUIREDWIRES(SEEILLUSTRAnON3 ONPAGE6)

1. Runthermostatcablefrom eachthennostattotheappropriateHVAC systemor zonecontrolpanel. Use4

through8-conductorthennostatcabledependingonthetypeof equipmentandnumberof equipmentstages.

Runonemorewire thanwouldberequiredif connectingto amechanicalthermostat.

-Cr If you areusingremotetemperatureorhumiditysensorsaspartof yourinstallation,nowis thetimeto

run theadditionalwiresfor theseitems. Referto theinstallationdiagramsprovidedwith thesensorsto

deteImineanyadditionalwiring requirements.

2. At theHVACizonecontrolsystem,useapieceof tapeto ~ label the location of the thermostat onthe

cableasyougo.

3. RunCategory-S,4-pairtwistedcable(8-conductor)from eachthermostattotheCommunicationPanel.

4. At theCommunicationPanel,useapieceof tapeto ~ label the location of thethermostat on the cable

asyou go.

S. RunCategory-SWirefrom theCommunicationPaneltotheProtocolAdapter.

6. Runtwo-conductorthennostatcablefromtheModel 8027Transformerto theCommunicationPanel. You

canuseCategory-Swire, butyoumustuseonepairof wirespertenninal.

E. CONNECT THE CONTROL WIRES TO THE HV AC/zONE SYSTEM AND THERMOSTATS (SEE DIAGRAM 2, PAGE 7)

1. Make suretheHVAC systempowerisoff.

2. IMPORTANT! REMOVE THE YELLOW SHUNT(JUMPER)LOCATED ON THETHERMOSTAT

CIRCUIT BOARD TO ISOLATE EQUIPMENTCONTROLCIRCUITSFROM COlo.,{MUNICAnON

CIRCUITS. ThethennostatInstallationInstructionsshowstheproperwayto openthethennostat.

3. ConnectthecontrolWiresasshownonDiagram 2 onpage7. Usecolorcodingwherepossible.

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APRll.AIRE COMMUNICATING THERMOSTAT SYSTEM INSTALLAnON MANUAL

F. ADDRF3S EACH COMMUNICATION CARD (SEE ILLUSTRATION 4 ON PAGE 10)

1. EachCommunicationCardmusthaveits ownaddressin orderto communicateproperlywith thesystem.

THIS IS A CRITICAL STEPTO ENSURE COMMUNICATIONS.

2. CommunicationCardsin theCommunicationPanelshouldbeaddressedasshownin Illustration 4. Start

with address#1. Addressthecardsby removingshunts(orpinjumpers)from thetwo pinsonwhich it is

installed.

3. CommunicationCardsin sub-basesshouldbeaddressedaccordingto thelocationin theCommunication

Panelin whichtheyarewired. Forexample,asub-base/thermostatwiredto the2adsetof terminalsnom

thetop,ontheleft-handsideof thecommunicationPanelshouldhaveaddress#2. SeeDlustration 4 for

thecorrectaddress,andusetheillustrationincludedwith thesub-baseinstructionstodeterminewhich

shunts/jumpersaretoberemoved.

4. ~ Write down the addressfor eachthermostat on Diagram 1(page5).

G. CONNECf mE COMMUNICATION WIRES TO THE COMMUNICATION PANn AND THERMOSTAT

1. MAKE SURETHAT ALL SWITCHESIN mE COMMUNICATION PANEL ARE OFF.

2. Connectthecommunicationwires.

. UseDiagram 3 onpage11if thecommunicationcardfor thethermostatis locatedin the

CommunicationPanel.

. UseDiagram 4 onpage12if theCommunicationCardfor thethermostatis locatedin theModel 8809

sub-baselocatedbehindthethermostat

IInstallation "1"tp:use color-coamg and lib l.:UN~l~l~li

H. CONNECT Tm: COMMUNICATION PANEL TO THE PROTOCOL ADAPTER AND CONNECT THE PROTOCOL

ADAPTER TO THE HOST COMPUTl:ROR AUTOMATION SYSTEM (SEE ILLUSTRATION 5 ON PAGE 13)

1. MAKE SURETHAT ALL SWITCHESIN mE COMMUNICATION PANEL ARE OFF!

2. UseCategory-5wire to connectthe"RS-485SERIAL IN" terminalsontheCommunicationPanelwith die

"Flying Leads"of thecorrespondingcolorontheProtocolAdapter(seemustration 5,page13).

3. ConnecttheRS-232port of theProtocolAdaptertothecomputeror automationsystem.A 6 ft. flat cable

with RJ-ll (phonejack) connections,andanRJ-ll to DB9 transitionconnectorareprovided.

4. Note:Oldercomputersoftenused25-pinconnectorsonports,whichrequiresaDB25connector.A DB9

connectorfits a9-pinport. DB9 toDB25 transitionsareavailableatmostcomputerretail stores.

5. PoweruptheProtocolAdapterwith dieplug-in transfonnerprovided. The"Power' LED ontheProtocol

Adapteralongwith the"Enable"LED's shouldlight upwhenpoweris applied.

I. PROVIDEPOWERTomE COMMUNICATIONPANEL(SEEILLUSTRATION6 ONPAGE14)

1. MAKE SURETHAT ALL SWITCHESIN mE COMMUNICATION PANEL ARE OFF!

2. Usea2-wire thennostatcableto connecttheloadtenninalsof theModel 8027Plug-inTransformerto d1e

24VAC terminalsof theCommunicationPanel(seeDlustration 6 onpage14).

3. Plug-inthetransformer.

4. The green LED on the bottom of the Communication Panel should be on. NO OTHER LED ON mE

COMMUNICATION PANEL SHOULD BE ON. .

J. TURNON POWER TO ALL BY AC EQUIPMENT AND TO THE THERMOSTATS (SEE ILLUSTRATION 7, PAGE 15)

1. Turnonpowerto theHVAC and/orzonecontrolsystems.

2. Goto theCommunicationsPanelandverify thatthegreenLED ondiebottomof theCommunicationPanel

istheonly oneon. If anyotherLED ison,immediatelyunplugthetransformerthatpowersthe

CommunicationPanel.If everythingisO.K., goon to step3.

. If anyotherLED is on.it is likely thattheyellow shunt/jumperonthecircuit boardof oneof the

thennostatshasnotbeenremoved.Goto thethennostats,separatethefront panelfrom thebaseand

look atthethermostatcircuit board. Removetheyellow shunt/jumperto isolatethecommunication

APRll.AIRE COMMUNICATING THERMOSTAT SYSTEM INSTALLAnON MANUAL

circuit from thecontrolcircuits. RefertothethermostatInstallationinstructionsfor theproperwayto

openthethermostat.

3. Turn onthepowerswitchto oneof thethennostats(seeDlustratioD 7 onpage15). ThegreenLED

immediatelyabovethepowerswitchshouldgoon,andthecorrespondingthennostatdisplayshouldpower

up. DO NOT TURN ONANY O1HER SWITCHES.TheLED's ontheCommunicationCardwill flash

onandoff once.

4. Oneby one,turnononly thepowerswitches(notthecommunicationswitches)for eachthermostat.Verify

thatthegreenLED comesonandthatthethermostatdisplaypowersup.

K. CBECK-oUTHVAC SYSTEMOPERATION

Usethecheckoutprocedurefoundin dieInstallationSheetprovidedwith diethermostatsto verify

equipmentoperation.Thisprocedurewill verify thatthethermostatoperatestheequipment.

Communicationsystemcheckoutwill beperformednext.

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