Honeywell HM512W1005 - TrueSTEAM Lon Wireless... User manual

69-2285EF-01
TM
TrueSTEAM™
PROFESSIONAL INSTALLATION GUIDE • GUIDE D’INSTALLATION PROFESSIONNELLE
Included In thIs humIdIfIer Box
matérIel comprIs dans l’emBallage
Remote installation requires separate purchase of the
Honeywell Remote Mounting Kit (#50024917)

Wire cutter/stripper
1-3/4-in. diameter hole saw
1/8-in. drill bit
Standard screwdriver
18-gauge wire (up to 5 conductor)
Torx driver T-20 and T-30

TrueSTEAM flushes water at or above 140°F (60°C).
Refer to local codes for proper draining practices
for hot water.
Condensate pump rating of 212°F (100°C) if used.
Drip pan with water sensor shut-off required underneath
TrueSTEAM if installed in or above finished space.
TrueSTEAM
Mounting bracket and hardware
Water filter and backflow preventer
Saddle valve
eWater supply hose
fDrain hose (10 feet)
gDuct nozzle and gasket
hOwner’s manual
IService label
J1Prestige HD color control*
J2TrueIAQ control*
J3Humidity control*
J4VisionPRO IAQ control*
*Control based on model ordered.
e
h
fI
J1J2J3J4
g
GETTING
STARTED MOUNTING PLUMBING WIRING APPENDICES
OPERATION
AND SERVICE

Contenu de cette boîte
ASystème TrueSTEAM
BSupport de montage et visserie
CVanne d’arrêt et dispositif
anti-refoulement
DVanne à étrier
ETuyau d’alimentation en eau de
1/4 po
FTuyau de vidange de 1/2 po
(3 m/10 pi)
GBuse de gaine et joint
HGuide du propriétaire
IÉtiquette relative aux
réparations
JBasé sur le modèle commandé,
inclut :
- Prestige HD (sans fil)
- TruelAQ
- Régulateur d’humidité H8908
- Régulateur VisionPRO IAQ
- Aucun régulateur dans
l’emballage
Outils nécessaires (non fournis)
• Coupe-l/outilàdénuder
• Troudescied’undiamètrede
1 3/4 po
• Foretde1/8po
• Tournevisstandard
• Fildecalibre18(jusqu’à5
conducteurs)
• EntraîneurTorxT-20etT-30
Autres exigences
• LesystèmeTrueSTEAMévacue
l’eau à une température
de140°F(60°C)ouplus.
Reportez-vous aux codes
locaux pour obtenir des
pratiques de vidange
adéquatesdel’eauchaude.
• Servicenominaldelapompe
àcondensatsde(100°C)
(212°F),siunetellepompeest
utilisée.
• Plateaud’écoulementavec
détecteur de coupure d’eau en
dessous.SystèmeTrueSTEAM
si installé dans ou au-dessus
d’unespaceni.
Installation à distance
L’installationàdistancerequiert
l’achat séparé du nécessaire de
montage à distance (no50024917).
LESDIRECTIVESD’INSTALLATION
COMMENCENTÀLAPAGE1

TrueSTEAMTM
NEED HELP? For assistance with this product please visit http://yourhome.honeywell.com
or call Honeywell Customer Care toll-free at 1-800-468-1502.
Read and save these instructions.
®U.S.RegisteredTrademark.Patentspending.Copyright©2009HoneywellInternationalInc.Allrightsreserved.
?
TrueSTEAMHumidicationSystem69-2285EF—01
GETTING
STARTED MOUNTING PLUMBING WIRING APPENDICES
OPERATION
AND SERVICE
1
GETTING STARTED
Safety Definitions and Precautions . . . . . . . . . . . . . . 2
Setting Homeowner Expectations ............... 3
Important Installation Requirements . . . . . . . . . . . . . 4
MOUNTING
Choosing a Mounting Method . . . . . . . . . . . . . . . . . . 5
Duct Mounting .............................. 6
STEP ONE: Select a Mounting Location . . . . . . . 6
STEP TWO: Connect the Duct Nozzle ......... 6
STEP THREE: Install Mounting Bracket
to the Duct............................ 7
STEP FOUR: Install TrueSTEAM onto the
MountingBracket ...................... 7
PLUMBING
Choosing the Proper Water Filter . . . . . . . . . . . . . . . 8
STEP ONE: Test the Water Hardness . . . . . . . . . 8
STEP TWO: Interpret the Test Result.......... 9
Water Supply and Water Drain Connections ...... 10
STEP ONE: Connect the Cold Water Supply ... 10
STEP TWO: Tap into a Water Line ........... 10
STEP THREE: Connect TrueSTEAM to the
Water Pipe. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
STEP FOUR: Connect the Water Drain ....... 11
WIRING
Before Wiring TrueSTEAM.................... 12
Using the DIP Switches . . . . . . . . . . . . . . . . . . . 12
STEP ONE: Remove the TrueSTEAM Cover ... 12
STEP TWO: Understand the DIP Switches . . . . 12
STEP THREE: Set the Automatic Flush
CycleTiming......................... 13
WIRING, CONTINUED
Deciding on the Wiring Configuration . . . . . . . . . . . 14
STEP ONE: Make Power Monitoring Decision. . 14
STEP TWO: Make System Fan
Regulation Decision . . . . . . . . . . . . . . . . . . . 16
STEP THREE: Make Add-On Air
Proving Decision ...................... 18
Wiring the TrueSTEAM . . . . . . . . . . . . . . . . . . . . . . 19
Using the Terminals . . . . . . . . . . . . . . . . . . . . . . 19
Routing the Wires........................ 19
Using the Correct Control Diagram ............. 20
OPERATION AND SERVICE
StartupandCheckout....................... 23
Routine Maintenance........................ 24
Automatic Cleaning Cycle . . . . . . . . . . . . . . . . . 24
Manual Cleaning Cycle . . . . . . . . . . . . . . . . . . . 24
STEP ONE: Initiate a Flush Cycle . . . . . . . . . . . 24
STEP TWO: Remove the Water Tank ......... 26
STEP THREE: Clean the Tank .............. 27
STEP FOUR: Replace the Water
Level Sensor (if necessary).............. 27
STEP FIVE: Reinstall the Tank.............. 28
Changing the Water Filter.................. 29
Troubleshooting ............................ 30
APPENDICES
A:Specifications ........................... 34
B: Parts List ............................... 35
C: Remote Installation ....................... 36
D: Advanced Wiring ......................... 38
E: Advanced Draining . . . . . . . . . . . . . . . . . . . . . . . 41
F: Reverse Osmosis Filter .................... 42

GETTING
STARTED
Safety Definitions and Precautions
Safety Definitions
Thesesafetytermsidentifyinformationyoumustread.
CAUTION:Indicatesahazardoussituationwhich,ifnotavoided,couldcausebodilyinjury
orpropertydamage.
WARNING:Indicatesahazardoussituationwhich,ifnotavoided,couldresultindeathorseriousinjury.
Safety Precautions
CAUTION:VoltageHazard.
Cancauseelectricalshockorequipmentdamage.
DisconnectHVACequipmentbeforebeginninginstallation.
WARNING:Electrocution,HeavyEquipment,andWaterHazard.
Cancausedeath,blindness,andwaterdamagetohome,andheatingelementfailure.
CAUTION:SteamCondensation,Fire,andFreezingWaterHazard.
Cancausefailureoffanorlimitcontrolorresultinwaterdamagetohome.
Make sure you read and understand the following safety hazards before installing, using, or working
with the TrueSTEAM humidifier:
Donotdirectthesteamnozzleatpeople.•
Waterinsidetankcanbeveryhot.Explainthistohomeownerandemphasizethewarninglabel•
onTrueSTEAM.
Scaldingdangerfromdrainingwater.Whenthewatertankdrains,thewatercanbehotenoughto•
causeinjury.Makesurethehomeownerunderstandsthedangerofhotwaterandsteam.
TrueSTEAMHumidicationSystem69-2285EF—01
2

GETTING
STARTED
MakesurethehomeownersknowwhattoexpectfromtheirTrueSTEAMhumidier.Discussthefollowingpoints
withthehomeownersandansweranyquestionstheyhave.
Achieving Humidity Setpoint.• Itmaytakeuptoaweekofcontinuousoperationtoachievethehumidity
setpoint.Thisdependsonsuchfactorsasweather,sizeofhome,furnishingsinthehome,andinsulation.
Plastic or Rubber Odor.• Atstartup,itisnormaltosmellaslightplasticodorinthehome.Iftheremotehose
isused,theremaybeaslightrubberodor.Theseodorswillgoawaywithinafewdays.
Ideal Humidity.• 35%relativehumidityintypicalwinterweatherisconsideredidealbyindustryexperts.
Homeownerscanadjusttotheirowncomfortoruntilthereiscondensationonthewindows.Lowerthe
setpointifcondensationappears.
Unit Not Humidifying.• IfTrueSTEAMisnotrunningbutthehumidityisbelowthesetpoint,thehumidity
controlmayhaveafrostprotectionsetting.TrueSTEAMwillnothumidifywhileinadraincyclemode.
Setpoint Not Reached.• Ifhumiditydoesn’treachthesetpoint,TrueSTEAMmaybeundersizedforthehome.
Thiscanbeduetofactorssuchasinsulation,windows,andaridclimate.Also,theoutdoortemperaturemay
betoolowtomaintainthehumiditylevel.Waitfortheoutdoortemperaturetowarmcloserto20°F(-6°C).Ifthe
desiredhumidityisstillnotreached,thenalargercapacityTrueSTEAMmaybeneeded.
Home Ventilation.• Excessiveventilationsendsmoistairoutsideandreplacesitwithdryair.Thiscanmakeit
hardtomaintainthehumiditysetpoint.Ifinstallingaventilator,useasolutionthatretainsmoisture.AnEnergy
RecoveryVentilator(ERV)isrecommended.
Cleaning Required Light.• IftheCleaningRequiredlightison,cleanTrueSTEAMusingthestepsfoundin
the “Routine Maintenance” section on page 24, or in the Homeowner’s Operating Manual.TrueSTEAMwill
continuetorunnormallywhilethislightison.
Hard Water.• Thehome’swaterhardnessdetermineshowoftenTrueSTEAMmustbecleaned.Awater
hardnesstestkitisprovidedwithyourTrueSTEAM.Itwillhelpyoudeterminethecleaningintervalandlter
requirementsforyourTrueSTEAM.
Energy Consumption.• Theremaybeaslightincreaseinoverallenergyconsumptionwhenoperating
anyhumidier.However,TrueSTEAMwillmakethehomefeelwarmer.Thisallowsthehomeownertolower
thetemperaturesettingonthethermostat.Everydegreeloweronthethermostatcansaveupto3%on
heatingcosts.
Setting Homeowner Expectations
TrueSTEAMHumidicationSystem69-2285EF—01 3

GETTING
STARTED
Personal Safety
WearsafetyglasseswhileinstallingTrueSTEAM.•
Donotcutintoanyairconditioningorelectricalline.•
Followprofessionalsafetystandardsandalllocalregulations.•
Mounting Location
MountTrueSTEAMinalevelpositiontoavoidwaterdamageorheatingelementfailure.•
InstallTrueSTEAMonthesupplyduct.UsetheRemoteMountingKitifductmountingisnotpossible.•
DonotinstallTrueSTEAMwheretheambienttemperatureislowerthan34°F(1.1°C)orhigher•
than104°F(40°C).
MountingareamustbestrongenoughtosupportTrueSTEAM’sweightwhenfullofwater(upto15lbs.).•
Choosealocationthatiswellventilated.DonotinstallTrueSTEAMincompletelyenclosedspaces,suchasa•
cabinetorunventilatedcloset.
Allowatleast1footclearancetoventilationholesintheTrueSTEAMcover.Donotcovertheholes.Covering•
themcanincreasethetemperatureinsideTrueSTEAMandshortenitslife.
Donotmountdirectlytoductboard.TheremotemountnozzleattachmentisallowedonlywithaHoneywell•
ductboardadapterkit.See “Appendix B: Parts List” on page 35.
Ifusednearapoolorspa,makesureTrueSTEAMcannotfallintothewaterorbesplashed.Also,ensure•
TrueSTEAMispluggedintoagroundfaultinterrupted(GFI)outlet.
Duct Nozzle
Donotinstalltheductnozzleintoasupplyductwithstaticpressureexceeding0.5in.w.c.•
Donotinstalltheductnozzlethroughwoodensidewalls(e.g.,oorjoist).•
Iftheducthasexposedinsulationontheinterior,besurethenozzleextendsbeyondtheinsulation.Clear•
awayexcessinsulationattheinsertionpoint,orreplaceasectionofinsulatedduct(approximately6in.x
6in.)withrigid,non-insulatedsheetmetal.
Allowatleast4in.clearancebetweennozzleoutletandanyinteriorducttoavoidwatercondensation.•
MountTrueSTEAMwherethenozzleoutlethasaminimum24in.ofdownstreamopenairspace.•
Water Drainage
Consultlocalplumbingcodesfordrainsize,material,andmaximumtemperatureallowed.•
Important Installation Requirements
Failure to comply with these requirements will result in voided warranty, improper installation, and
service callbacks.
TrueSTEAMHumidicationSystem69-2285EF—01
4

MOUNTING
Choosing a Mounting Method
BeforeinstallingTrueSTEAMinahome,youmustdecidewhichmountingmethodyouwanttouse:
Which is right for you?
ThismanualcoversductmountingofTrueSTEAM.ForRemoteMountingInstructions,see “Appendix C: Remote
Installation” on page 36 or “Document 69-2317” (includedwithRemoteMountingKit).
TrueSTEAMHumidicationSystem69-2285EF—01 5
DUCT MOUNTING – if you can mount
TrueSTEAM onto the supply duct of
the HVAC system:
The generated steam goes directly into the
supplyduct.
This is the simplest type of installation, but
it requires that a suitable mounting location
canbefoundonthesupplyduct.
Return Supply
M29596
REMOTE MOUNTING – if a suitable
mounting location can not be found
on the supply duct:
The TrueSTEAM can be mounted up to 20
feetawayfromthesupplyductfor
selectmodels.
A remote hose must be installed to carry
steamfromTrueSTEAMtothesupplyduct.
 Youwillneedtousearemotemountingkit
(see “Appendix B: Parts List” on page 35).
Supply
M29597
Before proceeding:
I have decided to use: Duct Mounting Remote Mounting

MOUNTING
Duct Mounting
Before beginning Duct Mounting:
 Ihaveconrmedlocalcodesforproperdrainingpracticesforhotwater
I have chosen an installation location that meets the requirements on page 4
FollowthesestepstomountTrueSTEAMdirectlytothesupplyductofthehomeowner’sHVACequipment.
STEP ONE: Select a Mounting Location
Choosealocationthathasaccesstoacold
watersupplypipe.
SelectaverticalorhorizontalsurfaceontheHVAC
supplyduct,withadequateclearances,where
TrueSTEAMcanbemounted.
Makesurethereisa120VACelectricaloutlet
ratedfortheTrueSTEAMmodelbeinginstalled.
Ensurethelocationisnearadrainwithahigh-
temperaturewaterrating.Consultlocalplumbing
codesforproperdrainage.Ifnomainoordrain
is available, see “Appendix E: Advanced Draining”
on page 41.
STEP TWO: Connect the Duct Nozzle
Slidethefoamgasketoverthenozzle.
Makesuretheo-ringgasketisproperlyseated
inthegroove.
InserttheductnozzleintoTrueSTEAM.Twist
clockwisetoensureatightseal.
M29598
M29599
TrueSTEAMHumidicationSystem69-2285EF—01
6
TrueSTEAM Required Minimum
Model: Circuit Capacity:
HM506 7Amps
HM509 10Amps
HM512 12Amps
1
4
2
3
3
2
1

MOUNTING
Before proceeding to Plumbing:
I selected a duct mounting location
I connected the duct nozzle
 Iinstalledthemountingbrackettotheduct
 IinstalledtheTrueSTEAMontothemountingbracket
TrueSTEAMHumidicationSystem69-2285EF—01 7
STEP THREE: Install Mounting Bracket to the Duct
Position the template on the supply duct:
Makesurethetemplateislevelandinthedesired•
positionontheduct.
EnsureproperclearancesfromA-coil.•
Makesuretheductnozzlewillhaveproper•
clearancesfromductwalls.
Minimum 4-inch clearance from nozzle outlet to•
anyductwall.
Minimum24inchesofdownstreamopenductair•
space.(Neededtopreventwatercondensation.)
Drillthe1-3/4inchhole.
Securethemountingbrackettotheduct,usingfour
self-drillingsheetmetalscrewsprovided.
STEP FOUR: Install TrueSTEAM onto the Mounting Bracket
Makesurethefoamgasketispositionedcorrectly
overthenozzle.
LiftTrueSTEAMintoplaceagainstthemounting
bracket.Insertthenozzledirectlyintotheducthole.
Checkthefoamgasket–itmustformatightsealin
theducthole.
PushdowntosecureTrueSTEAMtothebracketarms.
Flow
4”
12”
(min)
4”4”
M29600
M29601
2
3
1
3
2
1
4

PLUMBING
TrueSTEAMusesawatertanktoholdwaterinplaceasitisconvertedtosteam.Whenwaterisboiled,the
dissolvedmineralsinthewater(knownaswaterhardness)falloutinsolidform.Thissolidmineralfalloutis
knownasscaleorsediment.
Thequantityofscaleorsedimentandthetimeittakestoaccumulateinthetankdependsonthehardnessofthe
TrueSTEAMwatersupply.Theharderthewater,themoredissolvedmineralsitholds.Thisleadstofastersolid
mineralaccumulationinthetank.
Honeywellprovideswaterltrationsolutionsthatttheneedsofthehome’swaterhardness.Awaterhardness
testkitisincludedwithTrueSTEAMtoassesswhichlterisneeded.
STEP ONE:Test the Water Hardness
Filltheplastictubewithwaterdirectlyfromthe
TrueSTEAMinputwatersource.
Note:ItisimportanttotestthespecicinputtoTrueSTEAM,asitmay
differfromthefaucettapsinthehome.
Dip the colored end of one of the test strips into the
tube’swaterfor3seconds.
Removetheteststrip.Donotshakethestrip.
Wait 20 seconds and then match the test strip’s
colortotheclosestcolorblockonthewater
hardnessscale.
Note:Stripcolorresultsarenolongervalidafteroneminute.
Before beginning Plumbing:
I have completed the duct mounting installation, including installing the duct nozzle and securely
mounting TrueSTEAM to the duct
Choosing the Proper Water Filter
M29684
TrueSTEAMHumidicationSystem69-2285EF—01
8
1
2
4
3

PLUMBING
STEP TWO: Interpret the Test Result
Thecolorblockwillrecommendthebestwaterltermethodforthehome.
Which is right for you?
If water hardness is in range 3:
Honeywellrecommendsthehomeinstalla
watersoftenerforitswatersupply.Water
hardness in this range negatively affects
faucets,dishwashers,showerheads,laundry
machines,anddrains,aswellasTrueSTEAM.
If water hardness is in range 1:
Honeywellrecommendsusingthe
polyphosphatelter(soldseparately).
Proceed to “Water Supply and Drain
Connections” on page 10.
M29602
If water hardness is in range 2:
HoneywellrecommendsusingtheROFiltration
system(soldseparately).
Note:IftheROFiltrationSystemisnotused,setthehomeowner’s
expectationthatadditionalcleaningbeyondonceperseasonwill
benecessary.
Proceed to “Water Supply and Drain
Connections” on page 10. See “Appendix F:
Reverse Osmosis Filter” on page 42 to install
the filter.
M29661
TrueSTEAMHumidicationSystem69-2285EF—01 9

PLUMBING
STEP ONE: Connect the Cold Water Supply
Useonlycoldwater.Donotusehotwatersupply.
Insertoneendofthewaterlineintothewaterlter.
Usethe1/4-inchplasticwaterlineprovidedora
1/4-inchcopperwaterline.Applyamodestpullto
ensureatightt.
Useclampsortiestosecurethewaterlterina
locationthatallowsforremovingandreplacingitin
thefuture.Honeywellrecommendschangingthe
waterlterannually.
Installtheprovidedbackowpreventer,asrequired
bycode.See “Appendix F: Reverse Osmosis Filter”
on page 42 if using the Reverse Osmosis Filter.
Cutthewaterlinesoitislongenoughtoreachfrom
thewaterltertothesupplyttingonthebottom
oftheTrueSTEAM.
InsertthewaterlineintotheTrueSTEAM
supplytting.
STEP TWO:Tap into a Water Line
Consultlocalcodesforproperplumbing.•
Use the saddle valve provided or a T-fitting and•
manualshutoffvalvetotapintoacoldwaterline.
Refertotheliteratureincludedwiththevalveyou•
choseandthelocalplumbingcodes.Useproper
techniqueforthevalve.
M29604
Saddle Valve
T-fitting
Water Supply
Line
Manual Shutoff
Valve
M29605
Water Supply and Drain Connections
TrueSTEAMHumidicationSystem69-2285EF—01
10
4
3
2
1
5

PLUMBING
STEP THREE: Connect TrueSTEAM to the Water Pipe
Connectoneendoftheremaininglengthofwater
linetothebackowpreventer.Applyamodestpullto
ensureatightt.See “Appendix F: Reverse Osmosis
Filter” on page 42 if using the Reverse Osmosis Filter.
Connecttheotherendofthislinetothesaddlevalve
orT-ttingandmanualshutoffvalve.
STEP FOUR: Connect to the Water Drain
Consultandfollowlocalplumbingcodesfordrain•
pipesizeandmaximumtemperaturerequirement.
Theidealinstallationisdirectlytothemainoor•
drainusingtherubberhoseprovided.
Ifdirectoordrainaccessisnotavailable,• see
“Appendix E: Advanced Draining” on page 41.
Connectthe1/2-inchdrainhoseprovidedtothedrain
ttingonthebottomoftheTrueSTEAM.
Use the hose clamp provided to secure the drain hose
tothebarbedtting.
Routethedrainhosetotheoordrain.Thehosemust
haveacontinuousdownwardslope.
Directthehoseoutletintotheoordrain.Secure
thehosetoreducetheriskofhotwaterpooling
orsplashing.
M29606
M29607
Before proceeding to Wiring:
I have confirmed minimum required circuit capacity
 Ihaveconnectedthewatersupplyusingcoldwater
I have installed the drain connection
CAUTION: Scalding Hazard.
During operation, hot water may exit drain and can cause burns from scalding.
Make sure the hose is securely connected to the drain.
TrueSTEAMHumidicationSystem69-2285EF—01 11
2
1
3
2
1
4

WIRING
TrueSTEAMwiringisdifferentfromevaporativepadhumidierwiring.Inadditiontosolenoidwatervalve
actuation,TrueSTEAMcanmonitorsystempowerandregulatesystemfanoperation.
Using the DIP Switches
ThewiringfeaturesareconguredbyDIPsettings,whicharedescribedundertheTrueSTEAMcover.
STEP ONE: Remove the TrueSTEAM Cover
Loosenthecoverscrew.
Slidecoveroutfromfront.
Withthecoverremoved,youwillseesixDIPswitches
totheleftoftheuserinterfacepanel.Thismanual
referstoDIPs1–6fromlefttoright.
STEP TWO: Understand the DIP Switches
DIPS 1 and 2 are used for maintenance.
DIP 1 and DIP 2:Together,thesetwoDIPsspecify
howoftentheautomaticushcycleisperformed.See
“Set the Automatic Flush Cycle Timing” on page 13.
65432
On
Off
1
M29608
65432
On
Off
1
M29609
Before Wiring TrueSTEAM
BeforewiringtheTrueSTEAM:
 Iwillreadthesection“UsingtheDIPSwitches”beginningonthispage
 Iwillreadthesection“DecidingontheWiringConguration”beginningonpage14
CAUTION: Voltage Hazard.
Be sure TrueSTEAM is not plugged in when removing the cover.
TrueSTEAMHumidicationSystem69-2285EF—01
12
12
3

WIRING
DIPS 3, 4, and 5 are used for humidifying.
DIP 3: Usedtoenablewirelessoperation.
IfDOWN(default),wirelessterminalisdisabled.•
IfUP,wirelessterminalisenabled.•
DIP 4:Usedtocongurepowermonitoring.
IfDOWN(default),TrueSTEAMlooksforRinput•
beforeallowinghumidity.
IfUP,TrueSTEAMdoesnotlookforRInputbefore•
allowinghumidity.Powerisstillallowedtopass
throughifRiswired.See “Make Power Monitoring
Decision” on page 14.
DIP 5:Usedtocongureback-upair
proving(optional).
IfDOWN(default),TrueSTEAMdoesnotlookforair•
movementthroughanairprovingdevice.
IfUP,TrueSTEAMlooksforCconnectionbefore•
allowinghumidity.Wireanairprovingdevice
betweenTrueSTEAMCandSystemC.See “Make
Add-On Air Proving Decision” on page 18.
Note:SettingDIP5uprequiresDIP4tobedown.IfDIP4isup,DIP5
positionwillnotbeused.
DIP 6:Notusedatthistime.
STEP THREE: Set the Automatic Flush Cycle Timing
UseDIP1andDIP2tocongurehowoften•
TrueSTEAMwillautomaticallyushthetank.
Timingfortheautomaticushisbasedonhoursof
activeheatingelementtime.
Thehome’swaterhardnessdetermineshowoften•
automaticushingshouldbeperformed.
Theautomaticushtimingcanbechangedany•
time after installation by setting the DIP 1 and
DIP2positions,asshownatleft. See “Automatic
Cleaning Cycle” on page 24 for a description of
the automatic flushing process.
65432
On
Off
1
M29610
65432
On
Off
1
M29611
65432
On
Off
1
M29612
65432
On
Off
1
M29613
65432
On
Off
1
654321
654321
654321
On
Off
On
Off
For water that is filtered through
the Honeywell RO Filter System.
For soft water without
a softener or filter.
For water that is put through
a softener before
entering TrueSTEAM.
For hard water without
a softener or filter.
On
Off
M29614
TrueSTEAMHumidicationSystem69-2285EF—01 13

WIRING
YouneedtodecideonthecongurationsyouwillusebeforewiringtheTrueSTEAM,Thesedecisionswillaffect
howtheconnectionsaremade,howtheDIPswitchesareset,andhowTrueSTEAMoperatesforthehomeowner.
STEP ONE: Make Power Monitoring Decision
PowerMonitoringisacongurationthatallowsTrueSTEAMtohumidifyonlywhenithasconrmationthatthe
HVACsystemtransformerhaspower.ThishelpspreventsteamfromenteringthesupplyductwhentheHVAC
systemisnotoperating.Therearetwowaystocongurepowermonitoring,dependingonthehumidity
control used:
CONFIGURATION 1• –Usingathermostatwithintegratedhumiditycontrol
CONFIGURATION 2• –Usingahumidistatseparatefromthethermostat
Which is right for you?
Beforemakingdecisionsaboutwiringcongurations:
 IunderstandwhentousetheDIPswitchesandhowtosetthemforthehumiditycontrol.
CONFIGURATION 1 — using a thermostat
with an integrated humidity control such as
VisionPRO IAQ or Prestige — is ideal for
contractors who:
 Wantsimpliedwiring–TrueSTEAM
only needs to be connected to the HUM
terminalsfromthecontrol.
Provide integrated system and accessory
controlinthelivingspace.
Are using VisionPRO IAQ or
Prestigethermostat.
Proceed to “Wiring Basics: Configuration 1”
illustration at top of next page.
CONFIGURATION 2 — using a humidistat
separate from the thermostat such as H8908
or TrueIAQ — is ideal for contractors who:
Use a humidity control separate from
thethermostat.
Wish to locate the humidity control on the
returnduct.
Proceed to “Wiring Basics: Configuration 2”
illustration at bottom of next page.
Deciding on the Wiring Configuration
TrueSTEAMHumidicationSystem69-2285EF—01
14

WIRING
WIRING BASICS: CONFIGURATION 1
When using a thermostat with integrated
humidity control (such as VisionPRO IAQ
or Prestige):
Thethermostatispoweredbythe•
systemtransformer.Inthisconguration,
thethermostatmusthavepoweror
TrueSTEAMwillnotbeableto
producesteam.
Becausethethermostatknowswhenthe•
systemtransformerhaspower,setDIP4
toUP,sothatitisnotlookingforanRinput
fromthesystemR.
WIRING BASICS: CONFIGURATION 2
When using a humidistat separate from the
thermostat (such as H8908 or TrueIAQ):
TrueSTEAMgenerallysuppliespower•
tothehumidistat.Inthisconguration,
TrueSTEAMmustmonitorHVACsystem
powertodetermineifhumidityisallowed.
LeaveDIP4intheDOWNposition(factory•
setting),andwiretheHVACsystemRand
CtotheTrueSTEAMRandC.TrueSTEAM
willverifypowerispresentbeforeallowing
steamproduction.
65432
On
Off
1
Thermostat with
Humidity Control
HVAC System
Tr ueSTEAM 1
HUM
HUM
23
R
C
M29615
65432
On
Off
1
Humidity Control
HVAC System
TrueSTEAM
HUM
HUM
R
C
M29616
Note:Thisimageisnotacompletewiringdiagram.Itonlydepictspowermonitoring.
See “Wiring the TrueSTEAM” on page 19.
Note:Thisimageisnotacompletewiringdiagram.Itonlydepictspowermonitoring.
See “Wiring the TrueSTEAM” on page 19.
TrueSTEAMHumidicationSystem69-2285EF—01 15

WIRING
STEP TWO: Make System Fan Regulation Decision
SystemFanRegulationisacongurationthatrequiresTrueSTEAMtomonitortheHVACsystemfanandmake
surethefanisonifhumidityisneeded.Thishelpsensurethatairowwilldistributehumidityintothelivingspace,
andpreventswatercondensationintheduct.Therearetwowaystoconguresystemfanregulation,depending
on the humidity control used:
CONFIGURATION 1• –Usingathermostatwithintegratedhumiditycontrol
CONFIGURATION 2• –Usingahumidistatseparatefromthethermostat
Which is right for you?
CONFIGURATION 1 — using a thermostat
with an integrated humidity control such as
VisionPRO IAQ or Prestige — is ideal for
contractors who:
Want integrated control of the humidifier and
HVACsysteminthelivingspace.
Want the system fan to turn on immediately
uponacallforhumidity.
Proceed to “Wiring Basics: Configuration 1”
illustration at top of next page.
CONFIGURATION 2 — using a humidistat
separate from the thermostat such as H8908
or TrueIAQ — is ideal for contractors who:
Use a humidity control separate from
thethermostat.
Wish to avoid excessive air circulation in
thehome.TrueSTEAMfancallswillnotbe
sentoutoftheTrueSTEAMGFterminaluntil
thewatertemperaturereaches176°F(just
beforeboiling).
Note:ThisfeaturecanbeusedwithVisionPROIAQaswell.
See page 21.
Proceed to “Wiring Basics: Configuration 2”
illustration at bottom of next page.
TrueSTEAMHumidicationSystem69-2285EF—01
16

WIRING
WIRING BASICS: CONFIGURATION 1
When using a thermostat with integrated
humidity control (such as VisionPRO IAQ
or Prestige):
A thermostat controls the fan and•
TrueSTEAM.Thecontrolwillnotallow
steam production unless the system fan
ison.
WireThermostatGtotheHVACsystemG•
asnormal.
Wire TrueSTEAM HUM terminals to the•
systemHUMterminals.
WIRING BASICS: CONFIGURATION 2
When using a humidistat separate from the
thermostat (such as H8908 or TrueIAQ):
The external humidity control does•
notmonitororcontrolthesystemfan.
TrueSTEAM must confirm that the fan has
powerbeforeallowinghumidity.
BreakthethermostatGtoHVACsystem•
Gconnection.WirethermostatGto
TrueSTEAMGT.WireTrueSTEAMGFto
HVACsystemG.
ThermostatGcallswillpassdirectly•
throughTrueSTEAM.Ifthissignalis
not present, and humidity is needed,
TrueSTEAMwillrelaypowerfromitsRT
terminaltoGFandouttoHVACsystem
Gtoensurethefanhaspowerfor
humiditycalls.
Thermostat with
Humidity Control
HVAC System
Tr ueSTEAM 1
HUM
HUM
2 3
R
C
M29617
Humidity Control
Thermostat
TrueSTEAM
HVAC System
HUM
HUM
R
G
GT
GGF
M29618
Note:Thisimageisnotacompletewiringdiagram.Itonlydepictsfanregulation.See
“Wiring the TrueSTEAM” on page 19.
Note:Thisimageisnotacompletewiringdiagram.Itonlydepictsfanregulation.See
“Wiring the TrueSTEAM” on page 19.
TrueSTEAMHumidicationSystem69-2285EF—01 17

WIRING
STEP THREE: Make Add-On Air Proving Decision
Inadditiontomonitoringsystempowerandfanregulation,TrueSTEAMcanmonitorphysicalairmovement
throughanoptionaladd-onairprovingdevice.Ifanairprovingdeviceisadded,TrueSTEAMcancreatesteam
onlyifthefanismovingairthroughthesupplyduct.
WIRING BASICS
WireTrueSTEAMRandCtoHVACsystem•
RandCwithanairprovingdevicein-line
onC.
CongureairprovingthroughDIP5on•
TrueSTEAM.SetDIP5upandkeep
DIP4down.
TrueSTEAMwilllookforphysicalair•
movementthroughitsCconnectionbefore
steamenterstheduct.
65432
On
Off
1
HVAC System
TrueSTEAM
R
C
R
C
M29619
Note:Thisimageisnotacompletewiringdiagram.Itonlydepictsadd-onairproving.
See “Wiring the TrueSTEAM” on page 19.
TrueSTEAMHumidicationSystem69-2285EF—01
18