Aprilaire 8846 User manual

ELECTRONICTHERMOSTAT
COMMUNICATING THERMOSTAT SYSTEMINSTALLATION MANUAL
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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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APRILAIRE COMMUNICATING THERMOSTAT SYSTEM INSTALLAnON MANUAL
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
R

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.
9

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APRaAIRE COMMUNICATING THERMOSTAT SYSTEM INSTALLADON MANUAL
L. SETUP COMPUTER FOR COMMUNICATION SYSTEM CHECKOUT (SEE ILLUSTRATIONS 8 -14)
1. Turn onthemaincommunicationswitchesontheCommunicationPanel(seeDlustration 8).
-- --
485 seRI.A.LN ON ON POWER
ORB..BKRD ~~ 24VAC
~~~~~OFFA,OFF8, "I ~
J.- TURNON MAIN
COMMUNICATIONSWITCHES
INCOMMUNICATIONPANEL
ll.LUSTRAnON 8
2. ConnecttheProtocolAdapterRS232outputto acomputerwith Windows'95, '98 orWindowsNT. This
mayalreadyhavebeendonein step0-3.
3. Turnonthecomputer.
4. FromtheStart menu,selectPROGRAMS~ ACCESSORIES~ COMMUNICAnONS=>
BYPERTERMINAL (seeIllustration 9). Hyperterminalis ateIII1ina1emulatorprogramprovidedwith
Windowsthatwewill useto testthecommunicationsystem.
+:. If you now havetheHYPERTE~AL folder available,skip the nextstepand goto Step6.
If theCOMMUNlCA TIONS orHYPERTE~AL folderisnotpresent,youwill needto addthis
programtoyourWindowssetup.FromtheStart menu,selectSETTINGS =>CONTROL PANEL, then
select(doubleclick) theAdd/RemovePrograms icon. SelecttheWindowsSetuptab,andplaceaJ in
s.
16

theCommunicationscomponentbox(seeDlustration 10). Thiswill addHyperterminalto your Windows
setup. Gobackto Step4 andgetintotheHypertenninalfolderasdescnDed.
6. Doubleclick theHypertrm icon. You will thenbeaskedto namethenewconnectionandselectanicon.
Type in anynameyouwant(theshorterthebetter)andselectthe"atom-like" symbolattheendof theIcon
list (seemustration 11). Thenclick OK
. ~-~..,,-- .-
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APRILAIRE COMMUNICATING THERMOSTAT SYSTEM INSTALLATION MANUAL
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ILLUSTRATION 11
17
.

APRILAIRE COMMUNICATINGTHERMOSTATSYSTEMINSTALLAnON MANUAL
7. Thiswill bring upa L dialogbox. Fromthepull downnextto "Connectusing:",selecttheCom
port to which theProtocolAdapteris connected(seemuskation 12). Startwith Comport I (or thenext
lowestavailablenumber)if youareunsurewhichonetouse. Click OK.
A dialogboxshouldappear.Usethepull-downmenusortypein thefollowing for each
selection(seemustration 13):
Bitspersecond:9600
Databits: 8
Parity:None
Stopbits: 1
Flow control:none
Click OK.
-"--~ -~ "---'~---'ccc 'c..
8.
't
ILLUSTRAnON 12 ILLUSTRATION 13
9. FromtheFile pull-downmenu,selectProperties. Thiswill bringupa- dialogbox.
10. SelecttheSettingstab. Makethefollowing
selections(seeIllustration 14a):
Terminalkeys [
Ctrl+H
Emulation:Auto Detect
Telnettem1iDal:ANSI ;
Backscrollbuffer lines:500
c~~~AI.to~ -~'*~~"'£.iIiJ
,,"_H~11H'n'~-~'-.
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ll..LUSTRATION 14a
~
18

APRILAIRE COMMUNICATING THERMOSTAT SYSTEM INSTALLADON MANUAL
11. Then selectthe1A~(';11~etup...1button. This
following selections(seeDlustration 14b):
./ Sendline endswith linefeeds
./ Echotypedcharacterslocally
./ Appendline feedsto incoming
line ends
./ Wraplinesthatexceedterminal
width
12. Click OK toputawaybothdialogboxes.
13. Verify thatyouhaveaconnectionbetween
diecomputerandtheProtocolAdapter.
HavetheProtocolAdapterwithin eyesight
of thecomputerkeyboard.Typeany
characterandconfiml thatthe"RS-485,
Data.TX" LED andthe"RS-232,Data,
RX" LED (seeDlustratioD 5 onpage13)
ontheProtocolAdapterflashasyoutype.
TheLED's flashvery quickly.
14. Hit Enterto clearthecommandline.
Note: onWindows'98 computers,
Hypertenninaldoesnotechotyped
characters(doesn'tshowthemonthescreen
asyou type)locally.Do notbeconcerned.
This canbealittle confusing,butdoesnot
affectthecheckoutof thethermostat
co!!1~,-~nicationsystem.
COMMUNICATION
£ SWITCHES
. If you wereunable to verify aconnection,specifyadifferentcomport. GototheFile pull down
menu,andselectProperties. Changethe"Connectusin&:"settingto adifferentportby usingthepull
downmenuoptions. Starttypingandlook for theProtocolAdapterLED's to flash. Repeatuntil you
havesuccessfullyverifiedconnectionbetweenthecomputerandcommunicationsystem,oruntil you
run outof comportsto choosefrom in the"Connectusing:"pull down. If thereisstill no
communicationyouaregoingto havetoconsultacomputerprofessional.
M. CHECK-oUT COMMUNICATIONS TO EACH THERMOSTAT
1. Goto eachthermostatandpresstheFanbuttonif
necessaryto turntheFantoAuto. If it ison,you COMMUNICATION
will seeafan symbolonthethermostatdisplay.If SWITCHES\
thereisno fansymbolit isin Auto. Refertothe A
thermostatInstallationliteratureif thisisunclear.
Thefan will beusedlaterto verify
communications.
2. Goto thecomputerandtypeSN?(it doesnot
matterif it issmallor capitalletters)thenbit enter.
You shouldget no responsebecausenoneof
thecommunicationswitchesto thethermostats
havebeenturnedonyet.
3. Goto theCommunicationPanelandturnonthe
communicationswitchesfor thethermostatwith
address#1. If thecommunicationcardswere
addressedaccordingtoIllustration 4 (page10),
theseswitcheswill bein theupperleft-bandcomerof thecommunicationpanel.
IJ"&t 3&V ~ [IJ
94 [g]~ [g] 88
POWER --_J OfT ~ '-- POWER
SWITCH SWITCH
19