Honeywell PRESTIGE THX9321 User guide

Honeywell
System
Installation
Guide
THX9321/9421 Prestige °IAQ and RF ElM
With wireless accessories
Control for up to 4 HeaU2 Cool heat pump systems or up to 3HeaU2 Cool
conventional systems for residential and commercial applications.
installation guide for:
* Prestige THX9321/9421 thermostat
* Equipment Interi_aee Module (ELM)
*Portable Comfort Control
• Wireless Outdoor Sensor
• Wireless Indoor Sensor
• RedLINK '° Intemet Gateway
Quick start guide
0Install thermostat .......................................................... page 3
Install optional Equipment Interface Module (ELM) ................ 3
Power optional accessories ................................................... 4
Link thermostat to wireless network ...................................... 5
Link optional accessories to wireless network ...................... 6
Install optional sensors .......................................................... 7
Customize thermostat (installer options) ............................... 8
Wiring guides .................................................................. 10-17
Key features .................................................................... 18-25
Device replacement and specifications .......................... 26-27
DISCONNECT POWER BEFORE iNSTALLATiON. Cancauseelectricalshockor equipmentdamage,
MERCURY NOTICE: If thisproductis replacinga controlthatcontainsmercuryin a sealedtube, do not placetheold control
in thetrash,ContacttheThermostatRecyclingCorporationatwww.thermostat-recycle.orgor 800-238-8192for informationon how
andwhereto properlyandsafelydispose ofyour oldthermostat,
Must be installed by atrained, experienced technician. Readthese instructionscarefully.Failuretofollow
these instructionscan damagethe productor causea hazardouscondition.
_.3U.S.RegisteredTrademark.
Copyright© 2011 HoneywellInternationalInc.
All rights reserved. 69-2490-03

System Installation Guide
Your Honeywell advantage
RedLINK TM Compatible
Increase your content and profit per job by including RedLINK TM accessories that meet
your customers comfort and convenience needs. RedLINK accessories include the Wireless
Outdoor Sensor, Portable Comfort Control (PCC), Equipment Interface Module (ELM),
RedLINK Internet Gateway, Wireless Indoor Sensor, TrueSTEAM TM humidifier with Wireless
Adapter, TrueZONE TM zoning panel with Wireless Adapter, Vent Boost Remote and Wireless
Remote.
Customizable Service Reminders
Set up to 10 service reminders. Choose from the pre-set options or customize your own.
Reminders based on date, outdoor temperature or a dry contact input witt alert customers
with instructions to contact you for assistance.
Delta TAlerts and Diagnostics
Alerts give customers a sense of security white also enabling you to service or replace the
equipment prior to a loss of heating or cooling. Based on limits you set at installation, cus-
tomers can be alerted when their system is not operating as expected. The system alert witt
instruct customers to contact you for assistance. Requires ElM.
Delta T Installer Test
Save time by viewing Delta T white running a system test to verify proper operation. Requires
ElM.
Universal Inputs = 81 and $2
Assignable inputs altow you to configure Indoor and Outdoor Temperature Sensors,
Discharge and Return Air Sensors or Dry Contact Devices. Dry Contact Devices can be
used to trip pre-set or customized alerts on the thermostat home screen. Requires ElM.
User Interaction Log
The interaction log stores history of thermostat setting changes including temperature, sys-
tem and installer setup. You can use the interaction log to save time by determining if the
issue is a system error or an accidental user error.
Configurable for Residential and Light Commercial Applications
One thermostat does it nit to meet the needs of Residential and Light Commercial applica-
tions. Simply select Residential or Commercial during the installer setup. If Commercial is
selected, the thermostat witt use commercial language, meet buitding codes and offer 365
day holiday scheduling.
USB Port for Quick Installer Setup
Save time by using a USB stick to upload installer settings and service reminders in one
simple step.
Equipment Setup Wizard
The thermostat installer uses plain language and simple questions to guide you through
the set-up process. Settings are automatically modified according to the type of equipment
selected, helping to eliminate common installation errors.
Selectable Sensors
When paired with a Wireless Indoor Sensor(s) you have the ability to choose which
sensor(s) to use for temperature, humidification and dehumidification. They can be used
in combination for temperature averaging--or individually--to condition humidity levets in
separate spaces.
69-2490--03 2

O
®
THX9321/9421 Prestige _IAQ and RF ElM
Install thermostat
THX9421 : Mount the thermostat and wire to O and R terminals of the MCR32387
Equipment Interface Module (ELM), or to a separate 24 volt transformer (not
provided).
THX9321: Install and wire as above if using ElM. if not, see pages 13=15.
When usedwiththe ElM,the relaysin thethermostatdo not function,
O Install Equipment Interface Module (if used)
[If no ElM is used, skip to Section 3.]
Use screws & anchors as appropriate for the mounting surface. Mount the ElM
near the HVAO equipment, or on the equipment itself.
strip 1/4"insulation,theninsert wiresas shown.
NOTE:Ifyou installmore thanonethermostatand
ElM,the ElMsmustbe at least2 feetapart,
MCR32389
If installinga discharge/return air sensor, it must
be locatedbetweenthe IAQequipmentandthe
heating/coolingequipment.Thesensorsmustbe
in air thatis mixedwell (awayfroma-c0il/heat
exchanger).See page7.
69-2490--03

System /nstallation Guide
Power optional accessories
[If no wireless accessories are used, skip to Section 4.]
Outdoor air sensor indoor air sensor Portable Comfort Control
0_0
MCR32937
Install2freshAAlithiumbatteries
MCR32938
Install2freshAAAalkalinebatteries MCR32939 Install 3 freshAAalkalinebatteries
RedL|NK TM lnternet Gateway
The Honeywell RedLINK Internet Gateway gives your customers remote access
to home climate=control systems from any location with Internet access.
Using a Web browser, users can review and adjust indoor temperature,
system mode and other settings. The Gateway can also send alerts to as many
as 6 email addresses if a problem occurs.
ConnectRedLINKGatewaytoa
routeror modemwith Ethernet
cable(RJ45).
A Connectpowercordto
II _nn_lr_trid_ly°aUtle_lln°titch
®
M32940
69-2490--03 4

THX9321/942fPrestige_IAQ and RF ElM
OLink thermostat to the wireless network
(if used with an ElM or TrueZONE Wireless Adapter)
Next, link all components and RedLINK 'Maccessories to the wireless network.
|nitiai powerup configuration
When the thermostat is first activated, it wilt lead you through the steps
necessary to define and set up your system. The steps will change depending on
the type of system and thermostat you're installing.
Setup options for THX9321 Setup options for THX9421
If non-zonedsystem: If non-zonedsystem:
*Setup forthermostatonly *Setup forElM connection
,Setup foruse with ElM
If zonedsystem:
*Setup forElM wiredto zonepanel
,Setup br thermostatwired tozonepanel
,Setup forRedLINKwireless connectiontozone panel
(usingTHM400OTrueZONEWirelessAdapter)
If zonedsystem:
•Setup br ElM wiredto zonepanel
•Setup forRedLINKwireless connectiontozone panel
(usingTHM400OTrueZONEWirelessAdapter)
Link thermostat to ElM or TrueZONE _Wireless Adapter
Use the step-by=step thermostat menus to define your system type (above).
When you reach the Wireless Setup screen, follow the steps below:
M_;R32941
"Connected" status light
•Green flashing: InWirelessSetup mode.
•Green steady: Systemisworking normally,
o
Pressand releasethe CONNECTbuttonatthe ElMor Wireless
Adapter,andmake surethe "Connected"lightis flashinggreen.
If the "Connected"lightdoesnotflash, makesure no other
RedLINKdevicesare inWirelessSetup mode,then try again.
If the "Connected"lightdoesnotflash on theWireless
Adapter,consulttheTrueZONEmanualforhelp.
Red: Wirelessdevice(s)notcommunicating.CheckElM andRedLINKdevices.
Whilethe ElM lightisflashing,press NEXTto link
the thermostatwith the ElM.Aftera brief delay,
the screenwill display"DeviceConnected."
At any screenyou can press HELPfor moreinformation,
or pressBACKto change earlieroptions.
5 69-2490--03

System/nstallationGuide
Link optional accessories to wireless network
While the Add Device screen is displayed
on the thermostat, press and release the
CONNECT button on each wireless device, as
described below. Accessories need to be at
least 2 feet away from the thermostat or ElM
during the linking process.
PressDONEafter all deviceshavebeen linked
Wireless outdoor sensor
Pressandrelease CONNECT.After
a shortdelaythe thermostatwill
displayoutdoortemperatureand
humidity.
Portable Comfort Control
Wireless indoor sensor
Pressandrelease CONNECT.
Aftera short delay,thestatus light
willglow greenfor15 seconds.
Ifthe statuslightturns red,
thesensordidnot linkwith the
thermostat.
Innormaloperation,this light
remainsoff.If itbeginsflashing
red,batteriesare low(powerwill
be depletedafter3 weeks).
MCR32942
PressCONNECTon the PortableComfortControldisplayscreen.Press DONEwhen the
screendisplays "Connected,"then exitor continueto linkanotherthermostat.
Error messages:
E1 29 Incompatibledevicecannotbe connected.
E1 34 LowRFsignal. Movedeviceto adifferent locationand try again.
E1 38 Makesure the thermostator the ElM is inWirelessSetup mode,
andthe PortableComfortControlis at least 2feet away(600ram).
The linkingprocedurewilltime out ifthere is no keypressfor 30 minutes.Tobeginagain,
press andholdthe blankspacein the lowerright cornerofthe screen(anarrow may
appear here).Holduntilthe displaychanges (about3 seconds).
RedLiNK |nternet Gateway Pressandreleasethe buttonon the bottomofthe Internet
Gateway.After a shortdelay,the RedLINKstatuslightwillglow
steadygreen.
MCR32943
The InternetGatewaymustbe registeredonlinebefore
use atwww.mytotalconnectcomfort.com.Enterthe MAC
IDand MACCRC numberslocatedon the bottomof
the InternetGateway.Foradditionalinformation,see
instructionsprovidedwith the device.
69-2490--03 6

Install optional sensors
[If no sensors are used, skip to Section 7.]
THX9321/9421 Prestige _IAQ and RF ElM
To install outdoor air sensor
1 Mount the sensor on a vertical
exterior wall, at least 6inches below
any overhang. Choose a location
protected from direct sunlight.
2 Place sensor securely in bracket,
facing away from wall.
M2_4_,
To install indoor air sensor
1 Remove the waltptate and mount it 4
to 6 feet above the floor on an interior
watt. Drill 3/16=inch holes for drywall,
7/32=inch for plaster.
2 Attach sensor securely to watlplate as
shown.
M32936
To install discharge/return air sensor
1Instalt the sensor between the IAQ
equipment and the heating/cooling
equipment. The sensors must be in air
that is mixed well (away from a=coiV
heat exchanger).
2 Drill 1/4=inch hole for the sensor
probe and mount it to the ductwork
with enclosed screws.
Connect wires to Sl or S2 terminals at
the ElM.
Z69-2490--03

SystemInstallationGuide
0Setup installer options {ISU)
To configure the thermostat, press MENU>INSTALLEROPTIONS,then enter date
code when prompted (printed on back of thermostat). Or press MENU> EQUIPMENT
STATUSto find the date code.
A brief summary of installer options follows. You can download a complete list of
all options at _://customer.honeyweH.com.
Press CREATE SETUP to set at_ system
settings one by one.
Press VIEW/EDIT to select a specific
function and make quick changes.
TIP: Youcan use thethermostatUSB portto downloadallsystemconfigurationandinstalleroptions,includingyour company
nameandcontactinformation.Youcan uploadthisdata to eachthermostatyou install,tosave time.
R:ResidentialC:CommercialB:Both Thermostatfunctions ke i,_ i requirean ElM (seepage3),
1000 Lanqua_ B
1010 Residential/Commercial B
1020 Zone Number B
1030 DeviceName B
1030 DeviceNameon HomeScreen C
1040 Programmable/Non-programmable B
1050 Fahrenheit/Celsius B
1060 OutdoorAir Sensor B
2000 HeatingSystemType B
2010 HeatingEquipmentType B
2020-2100 Heat Stages B
2050 GeothermalForcedAir System B
2060 ReversingValveO/B B
2070-2090 Cool/CompressorStages B
2110 FanOperationin Heat B
2120,2180 BackupHeatType B
2130,2170 BackupHeatStages B
2150,2200 BackupHeatOperation B
2160,2210 BackupHeat FanOperation B
2190 ExternalFossilFuel Kit B
2220 L/ATerminalSetup C
3000 Manual/AutoChangeover B
3000 AutoChanqeoverDeadband B
3010 TemperatureControl Options B
3020 FinishWith HighCool Stage B
3021 FinishWith High HeatStage B
3030 StagingControl- Cool Differentials B
3040-3060 StagingControl- Heat Differentials B
3070 BalancePoint Onlyor Differential B
3080,3090 StagingControl- BackupHeat Differentials B
3110 BackupHeat UpstageTimer B
3120 OutdoorCompressorLockout B
3120 OutdoorBackupHeat Lockout B
3130,3150 Heat CyclesPerHour B
3140 CoolCycles PerHour B
3160 BackupHeatCycles PerHour B
69-2490--03
3170-3190 C__e raI, Throttlin ran e C
3200-3220 HeatingDerivative,Integral,Throttlingrange C
3240 MinimumCompressorOffTime B
3260 ExtendedFanRunTime in Cool B
3260 ExtendedFanRunTime in Heat B
4000 Numberof ScheduledPeriods B
4010 Pre-occupancyPurgeDuration C
4020 Override:Standardor InitiateOccuap_ C
4030 OverrideDuration C
4050 MinimumRecoverySettings- Heat C
4060 MaximumRecoverySettings- Heat C
4070 MinimumRecoverySettings- Cool C
4080 MaximumRecoverySettings- Cool C
4090 AdaptiveIntelligentRecovery R
4100 MinimumCoolSetpoint B
4100 MaximumHeatSetpoint B
4110 KeypadLockout B
4120 WirelessRemote*-
Home/OccupiedCoolSetpoint B
4120 WirelessRemote*
Home/OccupiedHeat Setpoint B
4130 WirelessRemote*
Away/UnoccupiedCool Setpoint B
4130 WirelessRemote*
Away/UnoccupiedHeat Setpoint B
4140 WirelessRemote*
Vacation/HolidayCool Setpoint B
4140 WirelessRemote*
Vacation/HolidayHeat Setpoint B
_!_:i_i_i!ii_!ii;iiiiiiii;i!_!_i_!_ii_iiii_iiii_iiii_iiii_iiii_iiii_iii_i!_ii_i_!_i_!i_i_i_!_!_!_{_!_!_!_ii_i_!_;i!_!_i!_!_i_i_!_i_;_i_iii_i_ii!iiii_iiii_iii_!_iiii_iiiii_i_!_!_!ii¸ii!iiiiiiii_i_!i_ili¸i!i!iiiiiiiiiiii_iiiiiii_i_i!iiiiiiiiiiiiiiiii_iiiiiii_iiiiiii_!i!_!
5040 IndoorSensorsUsedbrTemperature Control B
*WirelessRemote- comingsoon.

THX9321/9421 Prestige ®IAQ and RF ElM
installer options (ISU)
Thermostatfunctionsm ;ke_:i_:ay_ i requirean ElM (seepage3),
_,!,!i!_ii!_!!!_!_!!ii!i!i!!!i!iii!!!!ii!!!i!_!_i_¸i_!$_i_!!!ii_!!!_!!_i!i!!!i!i!i!_!i_i_!!!_!_!!!!_!!i!!i_i_i!_!iii!!i_ii!i!i!ii_i_i_i_i_i_!_!_!i!_!_!_!_!_!iii!i!i!i!i!i!_!_i_!
7000 FilterType B
7020 HumberofAir Filters B
7110 Air FilterReplacementReminder B
7110 Air Filter2 ReplacementReminder B
7120 EACCell CleaningReminder B
7120 EACPre-Filter CleaningReminder B
7120 EACPost-FilterReplacementReminder B
8000 HumidifierType B
8010
8030
8050
8060
8070
8080
8100
8100
9000
9010
9020
9040
9050
9050
9070
9080
9090
9100
9110
IndoorSensorUsedforHumidificationControl B
TerminalsWired tothe Humidifier B
Humidification-WindowProtection B
SystemModesAllowing Humidification B
HumidificationControl B
HumidifierLockout B
CleanTank/WaterFilterReplacementReminderB
HumidifierPad ReplacementReminder B
DehumidificationEquipment B
IndoorSensorUsedfor DehumidificationControl B
HumiditySensorDisplayedonthe HomeScreen B
TerminalsWired toDehumidificationEquipment B
A/Cwith LowSpeed FanSetup B
HotGas BypassSetup C
Dehumidification- OvercoolinqLimit R
9120 SystemModesAllowing Dehumidification B
9130 DehumidifierFanControl B
9140 DehumidifierLockout B
9180 DehumidificationAwayMode B
9190 DehumidificationAwayMode- FanControl B
9200 DehumidificationAway Mode-
LowLimitTemperature B
9200 DehumidificationAwayMode-
TemperatureSetting B
9200 DehumidificationAwayMode-
DehumidificationSetting B
9210 DehumidifierFilterReplacementReminder B
10000 VentilationType B
10020 TerminalsWiredto Ventilator/FreshAir Damper B
10050 VentilationControlMethod B
10060 VentilationFanControl B
10090 Numberof Bedrooms R
10090 Sizeof House R
10100 VentilationLevel(CFM) R
10120 VentilationPercentOnTime B
10130 VentilationLowTemperatureLockout B
10130 VentilationHighTemperatureLockout B
10130 VentilationHigh DewpointLockout B
10140 LockoutVentilationon Hum/DehumCalls B
10160 Ventilateon HighIndoorHumidity B
10170 VentilatorCoreCleaninq Reminder B
10170 VentilatorFilter CleaningReminder B
11000 Numberof UVDevices B
11050 UV BulbReplacementReminder B
11050 UV Bulb2 ReplacementReminder B
12000 InstallerCustomReminders B
14000 ClockFormat B
14010 DaylightSavingTime B
14020 IndoorTemperatureDisplayOffset B
14020 IndoorHumidityDisplayOffset B
15000-15020Dealer name,phone,email,website,message B
DehumidificationControl C
DehumidificationMinimumOnTime C
High HumidityComfort ResetSetting C
DehumidificationHighLimit RangeStop C
9 69-2490--03

System/nstallationGuide
ElM wiring guide -- conventional systems
Typical wiring of a conventional system with up to 3=stage heat and 2-stage cool
with one transformer.
"-POWER r--m
HEAT r"_
COOL
FAN
U1 r-_
U2
_ U3 r==l
TO TH ERMOSTAT
SONV
iw
W3-
Y2
________ _-
U3
U2
tic-
!
FURNACE
TRANSFORMER
=
____JCONs_EO20_sT4ONAL
Sl AND $2 TERMINALS
See guideson followingpagesforthermostatwiring andgeothermalradiantheatwiring.
A Wirea maximumof 2 sensorsusingthe $1 and$2 terminals.See ISU5000-6190for options.
A Removejumper(s)if usingseparatetransformers.
,_ See Economizerwiring section.
See followingpagesforadditionalthermostatwiring guidlinesforheat pumps,
geothermalsystemsandoptionalEconomizer.
69-2490--03 10

THX9821/942fPrestige_IAQ and RF ElM
ElM wiring guide -- heat pump systems
Typical wiring of a heat pump system with up to four-stage heat and two-stage
cool with one transformer.
STATUS --
LEDS
CHANGEOVER VALVEj'=
_=._=U j _EAT
| ! STAGE1
BACKUP HEAT
[ STAGE2
I Y [COMPRESSOR1
3 I
_ -JUMPERS
" _ AIR HANDLER
TRANSFORMER
-_ CONNECT OPTIONAl_
| SENSORS TO
$1 AND $2 TERMINALS
___MAX, 2SENSORS}
,_ _46
,_ See guideson followingpagesforthermostatwiring andgeothermalradiantheatwiring.
A Wirea maximumof 2 sensorsusingthe $1 and$2 terminals.See ISU5000-6190for options.
A L/Aterminalsendscontinuousoutputwhen thermostatissetto EMHEATmode,exceptwhenset upfor Economizer
orTOD.See Economizerwiring section.
11 69-2490--03

System /nstallation Guide
ElM wiring guide -- geothermal radiant heat
Typical wiring for geothermal radiant heat, geothermal forced=air, and backup
heat with one transformer.
STATUS =
LEDS
ElM TOTHERMOSTAT
HEATPUMP
-_OWER== ----4_---- _ OZB--
HEAT E:3 _-----41----- _ AUX1
COOL _ _---II---- _ AUX2
FAN _ -----tl---- _ Y
U2 _ -'_F---- _ G n
__ US _ ----4_'--" _ LiA_
u3U3
Corq
OPTIONAL _ RH
JUMPER_ RC
R
C
JUMPERS
$2 m
SENSORS S2 m
S1
S1_
O__CHANGEOVER VALVEF
___Jd _
[STAGE I
BACKUP HEAT L
STAGE--.-----Z--2F
-- I __y
LiCOMPRESSORMONITOR--
HEATSTAGE1 J"
AIR HANDLER
TRANSFORMER
CONNECT OPTtONAL
SENSORSTO
$1 AND S2 TERMINALS
(MAX. 2 SENSORS)
MCR32947
U1,U2 or U3 terminalsmustbe usedforgeothermalradiantheat (ISU2010).Thermostatallows2 stagesof radiantheat--
geothermal(stage 1)andboiler (stage2).
A "U"terminalsare normallyopendry contactswhenset up forgeothermalradiantheat.You mustinstallafieldjumper ifradiant
heat ispoweredbysystemtransformer.Do NOTinstalla fieldjumperif radiantheat has itsowntransformer.
A L/Aterminalsendscontinuousoutputwhen thermostatissetto EMHEATmodeexceptwhen setup forEconomizerorTOD.
See Economizerwiring section.
69-2490--03 12

THX9321/9421Prestige_IAQ and RF ElM
Thermostat wiring guides -- Prestige THX9321
Typical wiring of a 3-heat /2-coot heat
pump system with one transformer
Transformer _D R24 C
®U2
MCR32948
Typical wiring of a 3-heat /2-cool heat
pump system with two transformers
®R
© u2
OR ZONE PANEL _} U2
Backup Beat _ R ............i..............................
Transformer _ C MCR32950
Typical wiring of a 2-heat /2-cool con-
ventional system with one transformer
Transformer _A4CR24 C '
©Re
oR _
®W
Qw
®U2
MCR32949
Typical wiring for geothermal radiant
heat, geothermal forced-air and back-
up heat with one transformer
Transf..... __
I©c
i©mo o_
I®R
i
EOTHERMAL IQ U1 - :2-
i
HEAT i@U =_"
UA STAGE I '(_ U2 T _
MCR32951
U1 andU2 terminalsare drycontacts.
A L/Aterminalsendscontinuousoutputwhen thermostatissetto EMHEATmodeexceptwhen setup forEconomizerorTOD.
See Economizerwiring section,
A U1 or U2terminals mustbe usedforgeothermalradiantheat (ISU2010).Thermostatallows 2stages of radiantheat--
geothermal(stage 1)andboiler (stage2),
_I_ "U"terminalsare normallyopendry contactswhen setup forgeothermalradiantheat.Youmustinstalla fieldjumperif radiant
heat ispoweredbysystemtransformer.Do NOTinstalla fieldjumperif radiantheat has itsowntransformer.
A Removejumper ifusingseparatetransformers,
Connectthe THP9045WiresaverModuletothe Kterminalin heating/coolingapplicationsthatdo not havea commonwire
atthe thermostat,The Kterminalcannotbe usedin heat-onlyapplications.See THP9045installationinstructionsfor more
information.
13 69-2490--03

System/nstallationGuide
Prestige THX9321 or ElM:
Using universal relays to control heating or cooling
Powering universal relay with system
transformer (THX9321 shown)
Transformer 24 C
HEAT STAGE3 or _
©Re o
®u,:u_
®U,:iA
_U2_i
_U2 2=T'_
MCR32952
Powering universal relay with separate
heating transformer (THX9321 shown)
Transformer C A!
9 RC 8
9U_i
Transformer _ U2 ; "_
DU_::rA
MCR32953
A U1/U2/U3terminalsare normallyopen drycontactswhen setup fora stage 01heatingor cooling.
A Youmustinstalla fieldjumper ifthe stage ofheatingor coolingis poweredbysystemtransformer.Do NOT installa field
jumper ifthe stageof heatinghas itsowntransformer.
_ U1/U2/U3terminals are assigned to a stage of heating or cooling inthe Installer Setup. Options are:
• Heat --Stage 3 (last stageof heating)-- ISU2100,2140,or 2170
• Cool;Stage3 -- ISU2080
• Cool;Stage4 -- ISU2090
• Geothermalradiantheat:Stage 1 -- (seewiring guide on pages 12-13)
• Geothermalradiantheat:Stage 2 -- (seewiring guide on pages 12-13)
69-2490--03 14

THX9321/9421Prestige_IAQ and RF ElM
Wiring guide -- |AQ equipment (ElM or thermostat)
"U" terminals can be used for humidification, dehumidification or ventilation.
Typicalhookup of powered humidifier.
MA
i2o
Typical hookup of powered ventilation.
MA
i2o_ ....................
M32396
Typicalhookup of powered dehumidifier
(whole house dehumidifier).
VA
i2o VAC
......
VAq
Typical hookup of non-powered humidifier.
NON-PoWERED
IM32394
Typical hookupof non-powered ventilation.
JUMPER BETWEEN
R AND U1
24 MAC "_
Typical hookupof variable speed blower for
dehumidification in low speed.
/I',
A
DEHUMIDIFICATION I
WITH LOW SPEEDFAN _ FIELD INSTALLED
JUMPER BETWEEN
RAND U1
KEY
/'_ ANY COMBINATION OF UNIVERSAL RELAYS (U1, U2, U3) CAN BE USED. THEY ARE SET IN THE THERMOSTAT
INSTALLER SETUP.
Z_ WIRE THE THERMOSTAT OR ElM UNIVERSAL RELAY TO THE LOW SPEED FAN FOR DEHUMIDIFICATION
CONTROLAT THE EQUIPMENT. THE THERMOSTAT OR ElM RELAY CAN BE SET TO NORMALLY OPEN OR
"=-=1 NORMALLY CLOSED IN THE THERMOSTAT INSTALLER SETUP.
=.,L= = NORMALLY OPEN, DRY CONTACTS
__T
= NORMALLY CLOSED, DRY CONTACTS
M32954
15 69-2490--03

System/nstallationGuide
Economizer Module wiring guides
Typical wiring of a W7220 Economizer Module for a heat pump system, using a
Prestige THX9321 thermostat or Equipment interface Module.
R°oftopunjt_
O/B N YI AUX AUX2 G J
® ® ® ® ® ® ®j
W7220 Economizer Module
(Seewidngg@delEnesprovidedwiththeproduct)
SD_@B @
®
Transformer
I dl
_ @ @ @ @
/R
Therm0stat/E!M
MCR32959
Typical wiring of a W7220 Economizer Module for a conventional system, using a
Prestige THX9321 thermostat or Equipment Interface Module.
W7220 Economizer Module
(SeewNngguideEinesprovidedwiththe product)
SD_@B@
occ@
Y2Je -----_#>
','_o@ ....
Yll@ _ _y_......... /j
R00ftop Unit
N Y1 Y2 Wl W2 G
@ @ @ @ @ @
L
.... f..... _ .
T
MCR32955
A "A" or "L/A" terminal must be configured for Economizer in the instaIler setup (tSU 2220).
These terminals are powered by the cooling transformer (Rc terminal).
A Terminal AUX 2 is present only on the Equipment interface Module.
69-2490-- 03 16

THX9321/9421 Prestige_IAQ and RF ElM
Economizer Module wiring guides
Typical wiring of a W7213/W7214 Economizer Module for a heat pump system,
using a Prestige THX9321 thermostat or Equipment Interface Module.
Rooftop Unit ]
O/B N YI Y2 kUX AUX2 G /
Io o/
W7213/W7214 Economizer Module
(SeewNngguideIEnesprovidedwiththe product)
OorB @
N@
4 0
2&5@
TR @
>> Y2
;%Y1 A
i i ui
I III
11
Transformer l [ R _ _ I
MCR32956
Typical wiring of a W7212 Economizer Module for a conventional heating system,
using a Prestige THX9321 thermostat or Equipment Interface Module.
W7212 Economizer Module
(See widng guidelines provided with the product)
N (_
TRtO
Ro0ft0pUnit : I
.... 0 0 o o 0 0
F G 0 o
MCR32957
A "A" or "L/A" terminal must be configured for Economizer in the installer setup (tSU 2220).
These terminals are powered by the cooling transformer (Rc terminal).
A Terminal AUX 2 is present only on the Equipment Interface Module.
1Z 69-2490--03

SystemInstallationGuide
Economizer and TOD operation {ISU 2220)
Comrnercial use only
The Economizer can greatly reduce energy costs if configured properly. In some
climates the cooling system may run hundreds of hours, when it may not be
required to maintain indoor comfort, in some conditions, ventilation with outdoor
air can achieve the same level of comfort at lower cost. Tables below explain how
the Economizer feature maintains comfort while minimizing costs.
Thermostat Mode
Occupied
Occupied temporarily
Occupied
Occupied temporarily
Pre-occupancy purge
Unoccupied
Unoccupied temporarily
Standby
Unoccupied
Unoccupied temporarily
Standby
Non-programmable
Non-programmable
Equipment Operation A-L/A terminal:
Economizer
Heat/Cool/Fan running
Heat/Cool/Fan running
Heat/Cool/Fan NOT running
Heat/Cool/Fan NOT running ON
Fan running
Cooling system running
Cooling system running
Cooling system running
Cooling system NOT running OFF
Cooling system NOT running
Cooling system NOT running ON
Fan running
Fan NOT running OFF
Occupied
Occupied temporarily
Temperature overrides
Unoccupied
Unoccupied temporarily
Standby
Non-programmable
A-L/A terminal:
Thermostat Mode TOD
ON
OFF
69-2490--03 18

THX9321/9421 Prestige_IAQ and RF ElM
Heat pump with outdoor temperature lockouts
Outdoor temperature lockouts are optional. See installer Setup
options (ISU 3120).
Backup heat allowed to run with heat pump (see tablebelow)
Heat pump only . !
Heat pump With backUP heat aS needed I
_=IP====Backup heat lockout
_=IP====Compressor lockout
No backupheat unlessindoortemperaturedropsto selectedBackupHeat Differentialsetting,or BackupHeat
UpstageTimer expires.Heat pump stays ONwhen backup heat turns on.
Backup heat NOT allowed to run with heat pump
Heat pump only
Heat pump or backup heat operates *
Seetablebelow)
Backup heat lockout
Compressor lockout
No backupheat unlessindoortemperaturedropsto selectedBackupHeat Differentialsetting,or Backup
HeatUpstageTimer expires.Heat pump turns OFFwhen backup heat turns on.
Heat pump and backup heat operation
Backup Heat Type Backup Heat Operation Backup Heat Fan Operation
Electric forced air Allowed to run with heat pump Thermostat controls fan
Gas or oil forced air NOT allowed to run with heat pump Equipment controls fan
Hot water radiant heat Allowed to run with heat pump [n/a]
Hot water fan coil Selectable in installer setup Thermostat controls fan
Other Selectable in installer setup Selectable in installer setup
19 69-2490--03

SystemInstallationGuide
Basic and Advanced Temperature Control Options {iSU 3010)
Basic Options: The Installer Setup displays basic temperature control options
which include Backup Heat Differential, Backup Heat Upstage Timer and Outdoor
Temperature Lockouts. Note: Outdoor Temperature Lockouts only apply to Heat
Pump applications.
Advanced Options: The Installer Setup displays both Basic and Advanced
Options. Advanced temperature control options include Finish With High Coot
Stage, Finish With High Heat Stage, Temperature Differential settings per stage
and Cycle Rate settings per stage.
FinishWith HighHeat or C001Stage- Whena multi-stageheatingor coolingsystemis used,this featurekeepsthe highstage
ofthe heatingor coolingequipmentrunninguntilthedesired setpointis reached.Recommendedsettingfor GeothermalHeat
Pumpsto allowthe 100pto rest.
Backup heat differential and upstage timer
A backup heat differential and backup heat upstage timer can be set on any
system that has more than one type of heating equipment. See installer setup
options (ISU 3070-3110).
Normal operation
When the Backup Heat Differential is set to Comfort, the thermostat uses backup
heat as needed to keep the indoor temperature within 1o F (0.5 ° C) of the set-
point. If the Backup Heat Upstage Timer is used, the thermostat delays the back-
up heat from turning on until the timer expires.
When the Backup Heat Differential is set to 2° F or higher, backup heat is not
used unless the indoor temperature drops to the Backup Heat Differential setting
or the Backup Heat Upstage Timer expires. The upstage timer starts when the
highest stage of the previous equipment type turns on.
Manual temperature change
When the Backup Heat Differential is set to Comfort, the thermostat uses backup
heat as needed to keep the indoor temperature within 1o F (0.5 ° C) of the set-
point.
When the Backup Heat Differential is set to 2° F or higher, if the primary heat is
making progress as expected, backup heat witl not be used to reach the new
setpoint. Set to a higher number to use less backup heat (a greater difference
between the current indoor temperature and the new setpoint is required to turn
on backup heat). See note below.
Programmed recovery
If the primary heat is making progress as expected, backup heat will not be used
to reach the setpoint of the next program period. Backup heat is atway_ restrict=
ed during a programmed recovery when the Adaptive Intelligent Recovery feature
is used. Set the Backup Heat Differential to a higher number to use less backup
heat. See note below.
During a programmedrecovery(orwhen thetemperaturesetpointis changedby the user),thethermostatwaitsto turn on the
backupheat dependingon systemperformance,loadconditionsand howmanydegreesthe temperaturesetpointischanged.
Backupheatwill be usedONLYwhen thetemperatureis notrisingquicklyenoughtoreachthe setpointina reasonabletime.
69-2490--03 20