Quest Engineering DEH 3000R Installation, Operation And Maintenance Instructions

Quest Engineering
Brand
Quest Engineering
Model
DEH 3000R
Category
Thermostats
Type
Installation, Operation And Maintenance Instructions

Quest Engineering DEH 3000R is a digital control device that offers precise monitoring and adjustment of relative humidity levels, fan operation, and ventilation in your space. With a sleek design and user-friendly interface, it seamlessly integrates with your existing HVAC system, providing you with the convenience of controlling multiple aspects of your indoor environment. The DEH 3000R features a large, backlit LCD display for easy viewing and intuitive navigation, allowing you to quickly access and modify settings as needed.

Quest Engineering DEH 3000R is a digital control device that offers precise monitoring and adjustment of relative humidity levels, fan operation, and ventilation in your space. With a sleek design and user-friendly interface, it seamlessly integrates with your existing HVAC system, providing you with the convenience of controlling multiple aspects of your indoor environment. The DEH 3000R features a large, backlit LCD display for easy viewing and intuitive navigation, allowing you to quickly access and modify settings as needed.

Installation, Operation and Maintenance Instructions
– Read and Save These Instructions –
This manual is provided to acquaint you with
the Quest DEH 3000R so that installation,
operation, and maintenance can proceed
successfully. Ultimate satisfaction depends
on the quality of installation and a thorough
understanding of this equipment.
Quest DRY 150
Installation, Operation and Maintenance Instructions
4201 Lien Rd
Madison, WI 53704 1-800-533-7533
www.QuestProtect.com sales@thermastor.com
– Read and Save These Instructions –
Specications subject to change without notice.
TS-721
12/12
1
Quest DEH 3000R Digital Control
Quest DEH 3000R Digital Control:
• Digitalcontrolofrelativehumidity
(DigitalSet-Point)
• Fan/Filteroperation
• Programmableventilationtimer
• Sleekdesign
• Large,easy-to-readbacklitLCDdisplay
• Hightemperaturecut-out
• Dryoutcycletimer
• Autoreboot
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Quest DEH 3000R Installation, Operation and Maintenance Instructions
Table of Contents
1.Specications.................................................................. 3
2.Installation...................................................................... 3
2.1 ControlPanelInstallInstructions............................. 3
2.2 RemoteSensorInstallInstructions........................... 4
2.3 RemoteSensorUsage............................................. 4
2.4 RemoteSensorWiringInstructions.......................... 4
2.5 ControlPanelWiringInstructions............................ 5
2.6 AuxiliaryRelayOperation....................................... 6
2.7 Dehumidierlock-OFForlock-ON........................ 7
2.8 Testing.................................................................... 8
3.Operation........................................................................ 9
3.1 Display................................................................... 9
3.2 Setting.................................................................. 10
3.3 PersonalSettingsReferenceList............................ 10
3.4 On/OffandDisplaySettings.................................. 10
3.5 SettingClock........................................................ 10
3.6 AdjustingtheRelativeHumidity............................ 11
3.7 FanSettingandOperation.................................... 11
3.8 DamperOperationandSetting(Ventilation)......... 12
3.9 TemperatureCutoutProgramming........................ 14
Warranty............................................................... 15
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24VACYellowWire 24VACRedWire
Damper
WhiteWire
(Optional.See
warningbelow)
Dehumidier
BlueWire
Fan
GreenWire
ON-Detect
Common
OFF-Detect
NormallyOpen
Common
NormallyClosed
Optional
Use
Optional
Use
1. Specications
Part#(P/N)  4028531
Model:  QuestDEH3000RDigitalControl
Electrical:  24VAC
MaxCurrent–
DMP,COMP,FAN:  1Ampeach
HumidityOperatingRange:  10–95%
HumidityControlRange:  35–70%
HumidityAccuracy: 
±
5%
Output:  3Amps24VAC
Aux.RelayCapacity  5Amps
TempRange/  30°-90°F,2%
Accuracy
Size  4.95"Lx1.06"Wx4.19"H
FOR HVAC INSTALLER ONLY:
2. Installation
InstalltheQuestDEH3000Rremotesensorinacentralarea
ofthestructurewhereitwillsensetherelativehumidityofthe
structureaccurately.Donotinstalltheremotesensorwhere
itmaynotaccuratelysensetherelativehumiditysuchasnear
HVACsupplyregisters,nearexteriordoorsandwindows,ornear
apoolorspa.Installinaccordancewithallapplicablecodesand
standards.
2.1 Control Panel Install Instruc-
tions
1. Separatethefrontpanelfromtheback
panelbydepressingthemiddlesections
ofthetopandbottomofthefrontpanel.
2. Locatethewiringaccessholeinthe
wallorotheratmountingsurface.
Placethebackpanelintopositionand
drilltheappropriatemountingholes.
3. Insertthescrewsandtighten.Levelas
necessary.
4. Maketheelectricalconnectionstothe
terminalsonthebackpanelasshownin
theapplicablewiringdiagram(seeSections2.2-2.4).
5. Testtheinstallation(seeSection2.5).
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2.2 Remote Sensor Install Instructions
This section is applicable only to customers who have purchased a remote
sensor package. The standard DEH 3000 controller does not offer remote
functionality.
2.3 Remote Sensor Usage
IMPORTANT!
•Theuseofspraypaintonthesensorhousingmaydamagethesensorandisnotcoveredbytheproduct
warranty.
Theremotesensingoptionisusedwhenaninstallationrequiresmountingthehumidityandtemperaturesensor
outoftheconditionedspaceorwhenitisdesiredtospecicallymonitorandcontroltheconditionsataparticular
locationinalargerconditionedspace.
Boththeneedforandlocationoftheremotesensorshouldbedeterminedbyaheating/coolingprofessional.
2.4 Remote Sensor Wiring Instructions
1.Routingsignalwires:
Youwillberequiredtosupplyandroute24gauge,4conductorsolidwire(2-linetelephonewire)betweenthe
DEH3000Rcontrollerandtheremotesensorlocation.•Donotrunwireslongerthan100ft.
•Theuseof24gaugewireisoptimal.Thinnergaugewiremaylimitsensordistance.Thickergaugeswillnotwork
withspliceconnectorsprovided.
•Avoidroutingparalleltohighvoltagewiring.
•Maintainadistanceof2ft.ormorefromhighvoltagelines.
2.Sensorconnection:
Thesensorcanbemountedtoawallorceilingsurface.Idealsensorlocationis5ft.abovetheoor.Wires
shouldexitthrougha½”diameterholeinthemountingsurfaceatthemountinglocation.Usetheprovidedsplice
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connectorstoconnectthe4wiresfromtheremotesensortotheuser-suppliedinterconnectwire.Besuretokeep
propercolorsattachedtoeachother.
3.Sensormounting:
Youwillneedtwoscrewstomountthesensor.Usethetwoslottedholestomountthebaseofthesensortothe
wallandthensnapthecoverintoplace.
4.Controllerconnection:
Usetheprovidedspliceconnectorstoconnectthe4wiresfromtheDEH3000Rtotheuser-suppliedinterconnect
wire.Besuretokeepthepropercolorsattachedtoeachother.
Continuewiththeinstallationasdescribedintherestofthismanual.
2.5 Control Panel Wiring Instructions
WARNING! DO NOT ALLOW THE YELLOW WIRE FROM THE QUEST DEHUMIDIFIER
TO CONTACT THE RED OR WHITE WIRES FROM THE QUEST DEHUMIDIFIER, DAMAGE TO THE 24-VOLT
TRANSFORMER WILL RESULT.
WARNING! THE QUEST DEH 3000R DIGITAL CONTROL OPERATES ON A LOW
VOLTAGE CIRCUIT (24 VAC) AND MUST NEVER CONTACT OR BE CONNECTED TO A HIGH VOLTAGE
CIRCUIT.
WARNING! UNPLUG THE QUEST DEHUMIDIFIER BEFORE WIRING THE DEH 3000R.
Theinstallermustsupplyalleldwiring,includingthewiringbetweentheQUESTdehumidierand
theQuestDEH3000R.SomeofthecontrolwiresleavingtheQUESTdehumidiermaynotbeused
insomecontrolsituationsandshouldbeleftdisconnectedwithwirenutstapedontothestripped
ends.
BesuretoconsulttheelectricalschematicinthismanualortheinternalelectricalboxoftheQuest
dehumidierbeforemakinganycontrolconnections.
WARNING! ONLY CONNECT THE WHITE WIRE TO THE CONTROL IF IT IS WIRED IN A
CIRCUIT THROUGH AN ELECTRIC DAMPER, OTHERWISE TRANSFORMER DAMAGE MAY RESULT.
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TheWhitewirecontrolstheoptionalmotorizeddamperthatcanbeinstalledintoafreshair
duct.Thisdamperprovidestheabilitytocontrolfreshairventilationusingtheventilation
timerfunctionoftheQuestDEH3000Randtheterminal
labeled“DMP” (SeeSection3.8).Leavethe“DMP”
terminalunusedifamotorizeddamperisnotused,and
capofftheWhitewirefromtheQuestdehumidier.
Standard wire colors for thermostats are as follows:
Description Color Terminal code
24VAC Red R
CallforHeat White WorW1
ForceFanOn Green G
Compressor
CallforCooling Yellow YorY1
2.6 Auxiliary Relay Operation
Itmaybedesirabletocoordinatefanoperationofthecentral
heating/coolingsystemwithdehumidierfanoperation.The
QuestDEH3000Rcontainsarelaythatprovidesthisability.
TherelayterminalslabeledNC,COMandNOoperate
accordingtothefollowingchart:
FAN COM to NO COM to NC
ON CONNECTED OPEN
OFF OPEN CONNECTED
Commonuses(assumingstandardthermostatwiringcolorsas
noted):
NO
COM
NC
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Lock-out the A/C during dehumidier fan operation
ThiswillturnofftheA/Cwheneverthedehumidierfanruns.
1.WiretheYellowthermostatterminaltotheNCterminalontheQuestDEH3000R.Theinstaller
mustsupplythewiringbetweentheQuestdehumidierandthecontrolpanel.Besuretosafelyroutethe
controlwirestopreventdamageduringinstallation.Be
carefulnottocrossthewireswhenconnectingtheQuest
dehumidierandtheremotecontrolpanelordamageto
thetransformermayresult.
2.RuntheYellowwirefromtheA/CunittotheCOM
terminalontheQuestDEH3000R.
Energize the A/C central fan during dehumidier fan
operation
ToautomaticallyruntheA/CFANwhenthedehumidier
fanruns.
1.AttachasecondGreenwiretotheGreenfanwire
terminalonthethermostat.
2.ConnectthenewGreenwiretotheCOMterminalonthe
QuestDEH3000R.
3.RunawirefromtheRedterminalonthethermostatto
theNO(NormallyOpen)terminalontheQuestDEH
3000R.
2.7 Dehumidier lock-OFF or lock-ON:
A/C sensor feature
Toautomaticallyactivateordeactivatethedehumidierwhentheairconditionerruns.
Activate dehumidication when the air-conditioner is running.
A voltmeter is required for the next steps to ensure the correct wiring from
the A/C transformer is used to set up the Lock-in dehumidier function.
1.ThecommonwirefromtheexistingA/Ctransformer(usuallyBlack)
mustbeattachedtothe“COM”sensorterminalbetween“ON-D”
and“OFF-D”ontheDEH3000R.
TIP: The common wire can be identied as the wire from the A/C
transformer that reads 0 volts between it and the Yellow air conditioning call
for cooling wire.The incorrect wire will give a 20 to 28 volt reading.
2.AnotherYellowwiremustbeaddedtothe
thermostatYellowterminalandruntothe“ON-D”
sensorterminalontheQuestDEH3000R.
A/C
Unit
Red
Green
Yellow
A/C
Unit
Red
Green
Yellow
A/C
Unit
Red
Green
Yellow
A/C
Unit
Red
Green
Yellow
ON-D
COM
OFF-D
TO A/C
TO A/C
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Deactivate dehumidication when the air-conditioner is running.
Avoltmeterisrequiredforthenextstepstoensurethe
correctwiringfromtheA/Ctransformerisusedtosetup
theLock-outdehumidierfunction.
1. ThecommonwirefromtheexistingA/C
transformer(usuallyBlack)mustbeattachedto
the“COM”sensorterminalbetween“ON-D”
and“OFF-D”ontheDEH3000R.
TIP: The common wire can be identied as the wire
from the A/C transformer that reads 0 volts between
it and the Yellow air conditioning call for cooling wire.
The incorrect wire will give a 20 to 28 volt reading.
2.AnotherYellowwiremustbeaddedtothethermostatYellowterminalandruntothe“OFF-D”
sensorterminalontheDEH3000R.
2.8 Testing
Verifythewiringconnections.
WARNING! ONLY CONNECT THE WHITE WIRE TO THE CONTROL IF IT IS WIRED IN
A CIRCUIT THROUGH AN ELECTRIC DAMPER, OTHERWISE TRANSFORMER DAMAGE MAY RESULT.
Aftercheckingthewiring,thisshorttestwillconrmproperhook-up.
1. InstallfrontcoveroftheQuestDEH3000R;connectthetoprst,thenthebottom.
2.PlugintheQUESTdehumidier.TheQuestDEH3000Rshouldpowerup.
3.TurntheQuestDEH3000RONbypressingthe“ON/OFF”button.
4.VerifydehumidicationoperationbyadjustingtheRH“SETPOINT”tobelowthe“%RH”
readingonthedisplay.Usethedown“RH”button.ConrmQuestfanandcompressor
operation.BothshouldbeONnow.
IncreasetheRH“SETPOINT”onthedisplaytowellabovethe“%RH”readingonthedisplay.Pressthe“RH”
uparrowtoincreasetheRH“SETPOINT”.
AfterrunningthedehumidiercompressortheQuestDEH3000Rappliesa10minuterestartlockoutonall
functions.Youwillhavetowaitfortherestartlockouttoexpire.
5.VerifyFAN-onlyoperation:
a.Checkthe“VENT”modeonthedisplay,itwilleitherbe“CLOSED”or“OPEN”.Ifitis“CLOSED”goto
thenextstep.Ifitis“OPEN”,pressandholdthe“VENT”keyuntil“OPEN”ashesonthedisplay,release
thekeyandthenpressitonemoretime.“OPEN”willchangeto“CLOSED”.Don’ttouchthekeysfor
severalsecondsuntilitstopsashing.
b.Pressandholdthe“FAN”buttonuntil“AUTO”beginsashingonthedisplay,releaseit,andthenpressit
againtoswitchthefantothe“ON”setting.
c.ConrmthattheQUESTfanisON.QuestcompressormustbeOFF.Ventilationdamper(ifused)should
beCLOSED.
6.VerifyoptionalVENToperation(ifelectricdamperisinstalled):
a.Pressandholdthe“FAN”buttonuntil“ON”ashesonthedisplay.
b.Releasethe“FAN”button,thenpressitagaintoswitchfanoperationto“AUTO”.
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c.Pressandholdthe“VENT”buttonuntil“CLOSED”ashesonthedisplay.
d.Releasethe“VENT”button,thenpressitagaintoswitchventmodeto“OPEN”.
e.ConrmthattheQuestfanisON.VentilationdamperisOPEN.QUESTcompressormustbeOFF.
f.Pressandholdthe“VENT”buttonuntilthe“OPEN”ashesonthedisplay.
g.Releasethe“VENT”button,thenpressitagaintoswitchventmodeto“CLOSED”.
Troubleshooting:
Ifanyfunctionsarenotworkingproperly,checkthewiringandconnections.Avoltmetermaybeusedacross
terminalstoverifyvoltage.Ifthereisconcernaboutthedehumidiernotoperatingproperly,theleadsexitingthe
QUESTdehumidiermaybeconnectedaccordingtothefollowingchart:
Wire connections Operation
Yellow&Blue Fan&Compressor
Yellow&Green FanOnly
WARNING!DO NOT MAKE ANY OTHER CONNECTIONS OR TRANSFORMER DAMAGE
MAY RESULT.
7.VerifyanyadditionaloptionalcontroloperationssuchasfaninterlockorA/Clockout.
8.ProceedtotheOperationsection.
FOR INSTALLER & OWNER:
3. Operation
Onthedisplayscreen,asolid“O”infrontofanyofthe3functions(SETPOINT,VENT,FAN)indicatesthefunction
isoperating.Aashing“O”indicatesitisinawaitmodeandnotavailableatthemoment.No“O”indicatesthe
functioniscurrentlyOFF.
Solid“O”before Indicates
SETPOINT Dehumidieron
VENT Freshairventilationcycleinprogress
FAN Fanon
Waitmodeisafactory-programmedtimeperiodmeanttopreventshortcycles.Thisextendsthelifeofthe
dehumidier.Whenaashing“O”isencountered,theunitisinwaitmodeandIT COULD BE UP TO 10
MINUTES BEFORE OPERATION RESUMES.
3.1 Display
•Wheneverthereispowertothecontrol,itwilldisplaythetime,theday,%relativehumidity,andtemperature.
•WhenthecontrolisactuallyswitchedON,the%RHsetpoint,fanstatus,runmode(programorhold),andfresh
airventilationstatusisdisplayed.
•Whenakeyispressedthedisplaywilllightforapproximately½aminute.
•TheTimeandDayisdisplayedatthetopofthescreen.
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•RHandTemperaturearedisplayedinrealtime.
•Asolid“O”beforetheSETPOINT,VENT,ORFANindicatesthefunctionis
operating.
•Aashing“O”beforetheSETPOINT,VENT,ORFANindicatestheunitis
inwaitmode.
3.2 Setting
Duringtheset-upprocess,ifyoumakeamistake,simplycontinue.Youcanalwaysgobacktoadjustthesettings.
Ifyouleavethecontrolaloneanddon’ttouchanybuttonsfor10seconds,thecontrolwillrememberany
changesmadeandreturntothenormaldisplayscreen,allowingyoutoproceedtothenextstep.
3.3 Personal Settings reference list
Please record your settings here.
Function Factory setting My Setting
SETPOINT(%RH) 50%
VENT Closed
FAN Auto
TEMPCUTOUT 99°
3.4 On/Off and display items
Pressthe“ON/OFF”buttontoturnthesystemONorOFF.
WhenthesystemisON,thesetpoint,fanstatus,operationmode(RUNor
HOLD),andfreshairventstatusisdisplayed.
WhenthesystemisOFF,thecontrolwilldisplaythetime,day,%RH,and
temperature.
Whentheunitisshipped,itisinmanual(hold)mode.
3.5 Setting Clock Time
1.Pressandholdthe“CLOCK”button.Thehourdisplaywillash.Release
thebutton.
2.Usetheup/down“RH”buttonstochangethevalue.
3.Pressthe“CLOCK”buttonagainandtheminutedisplaywillash.Use
the“RH”buttonstochangethevalue.
4.Pressthe“CLOCK”buttonagainandAMorPMwillash.Usethe“RH”buttonstochangethevalue.
5.Pressthe“CLOCK”buttonagainandthedaydisplaywillash.Usethe“RH”buttonstochangethevalue.
6.Don’ttouchanybuttonsforseveralsecondsuntilthedisplaystopsashing,thiswillsaveyoursettings.Ifyou
needtochangeanythinggobacktostep#1.
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3.6 Adjusting the relative humidity “SETPOINT”
TheQuestDEH3000Rsensestheambientrelativehumidity(%RH)ofthespaceinwhichitislocated,itcomes
factorypresettohold50%relativehumidity.
Therelativehumidity“SETPOINT”(desiredRHtobemaintained)operates
thedehumidierfunctionoftheQuestdehumidier.Ithasnoeffectonthe
optionalVENT(freshairventilation)orFAN(airrecirculation)functionsifthey
arebeingused.
Operation
Thestandardrangethatthedehumidierholdsaroundyour“SETPOINT”
is3%.Withasetpointof50%,thedehumidierwillrununtiltherelative
humidityreaches47%.Thedehumidierwillthenswitchoffuntiltherelative
humidityreaches53%.
Ifthesetpointishigherthantheambientrelativehumidity,thespacedoesnotneedtobedehumidiedsothe
dehumidierwillnotrun.
Example:Setpoint:50%RH
Currentcondition:45%RH–Thedehumidierwillbeoff(no“O”indicatorwillbedisplayed).
Ifyoursetpointisbelowtheambientcondition,thedehumidierwillbeonand“O”willdisplay.
Example:Setpoint:50%RH
Currentcondition:55%RH–Thedehumidierwillbeon(“O”displayed).
3.7 Fan Setting and Operation
Usethe“FAN”buttontochangethefanoperation.Thereare2choicesforfanoperation:“ON”or“AUTO”.The
factorypresetis“AUTO”.
“ON”–ThefanintheQuestdehumidierwillruncontinuously.Thisdoesnotaffecteitherthedehumidication
orventilationfunctionsofthesystem.Thesystemmayormaynotbeventilatingordehumidifyingwhilethefanis
running.Thissettingiscommonlyusedformaximumairltrationand/orairrecirculation.
“AUTO”–IndicatesthefanwillrunwhentheQuestDEH3000Rcallsfordehumidicationorventilation.Ifthe
controlhasnotcalledfordehumidicationfor3hours,thecontrolwillautomaticallyrunthedehumidierfanfor
10minutes.
Afteradehumidicationcycle,thefanautomaticallyshutsofffor10minutes.Thispauseallowsthewatertodrain
fromthedehumidier.
Asolid“O”indicatesthefanisoperating.Aashing“O”indicatesthefanisinawaitmode.No“O”indicatesthe
fanisOFF.
Tosettheoperation:
1.Pressandholdthe“FAN”button.Thecurrentfansettingwillbegintoash
onthedisplay.Releasethebutton.
2.Pressthe“FAN”buttontotogglebetweenthe“ON”and“AUTO”modes.
Withthefaninthe“AUTO”mode,thefanwilloperateonlywhenneeded
byotherfunctionsofthesystem.ThefanwillremainOFFunlessthesystem
isdehumidifyingorventilating.Thefanalwaysrunsduringdehumidication
andventilationandthefan“O”iconwillbelit.Tocompletelyturnthe
systemOFF,usethe“ON/OFF”buttonasdescribedearlier.
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3.8 Damper Operation and Ventilation,
Manual (Hold) Mode
The“VENT”settingcontrolstheventilationfunctionofthesystem.Ithasnocontroloverthedehumidication
function.Inordertoprovideventilation,themotorizeddampermustbeopenandthefanmustberunning.The
controllertakescareofthesetwofunctionsautomaticallysothatwheneverthedamperisopen,thefanisrunning.
Theventilationindicator“O”willbedisplayedwhenevertheunitisventilating.Thefanoperationindicator“O”
willalsobelit.
Therearethreedamperoperationmodes:
1.“OPEN”–holdmode:Thedamperwillbeopenandthedehumidierfanwillbecontinuouslyoperatingto
introducefreshairintothespace.Usethismodeforcontinuousfreshairventilation.Thefanisalwaysonwhen
thedamperisopen.
2.“CLOSED”–holdmode:Thedamperwillneveropen,andthedehumidierwillnotventilate.Thefanwillstill
operatenormallyforrecirculationanddehumidication.
3.“PROGRAMMED”mode:TheQuestDEH3000Rwilloperatethemotorizeddamperandthedehumidierfan
accordingtotheprogrammedventilationschedule(Section3.9).
Thefactorypresetforthe“VENT”settingis“CLOSED”.
Toset“OPEN”–holdor“CLOSED”–holdventilationoperation:
1.Pressthe“VENT”button.Thecurrentsettingwillbegintoashonthedisplay.Releasethebutton.
2.Pressthe“VENT”buttonagaintoswitchbetween“OPEN”and“CLOSED”.
3.Leavethecontrolalonefor10secondsandyoursettingswillbesaved.
Damper Operation and Ventilation, Programmed Ventilation
Thisexampleshowsthesysteminprogrammode(denotedbytheschedule15minuteson,5minutesoffandthe
wordRUNinthelowerrightcornerofthedisplay).
TheQuestDEH3000Rwilloperatefreshairventilationaccordingtoyour
ventilationprogram.Thecontrolneedstobeprogrammedtoturnthe
ventilationfunctionONandOFFatthedesiredintervals.Thisisdoneby
programmingtheventilationtimer.
Therearetwoprogramsavailableforventilation:
1.MondaythroughSunday
2.MondaythroughFriday&Saturday/Sunday
Eachblockofdayshasamorningscheduleandanightschedule.Morning
istherst12hoursofthedayandnightisthesecond12hours.
Eachschedulehas:
•A“START”timewhentheventilationschedulebegins,
•An“OPEN FOR”durationfortheamountoftimethedamperstaysopenin5minuteintervals,from0to60,
•And“CLOSED FOR”durationwhichclosesthedamperforaspeciedtimein5minuteintervalsfrom0to60.
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Setting the Ventilation Program:
1.Pressthe“PROGRAM ENTER”buttonuntilthefollowingmenu
appears:
2.Usingtheup/down“RH”buttons,highlight“PROGRAM”andselect
itbypressingthe“PROGRAM ENTER”button.Thefollowingmenu
appears:
Youcanselectfrom:
“MON-FRI”“SAT-SUN”forseparateweekdayandweekendschedules,or
“MON-SUN”whichgivesyouequalweekdayandweekendschedules.
3.UsingtheUp/Down“RH”buttons,highlightandthenselectoneofthetwochoices.Theexamplegivenshows
howtoprogramseparateweekdayandweekendschedules.Thesamemethodisusedifyouchoosetheother
program.
Example:menuwhenyouselect“MON-FRI”“SAT-SUN”:
1.Enterthestartingtimeforweekdaysusingtheup/down“RH”buttonstochangethetime.
2.Pressthe“PROGRAM ENTER”buttontoswitchtothe“OPEN FOR”setting.Usingtheup/down“RH”buttons,
changethedurationthatthedamperwillventilatefreshair.
3.Pressthe“PROGRAMENTER”buttontoswitchtothe“CLOSEDFOR”setting.Usingtheup/down“RH”
buttons,changethedurationthatthedamperwillremainclosedbetweenventilationcycles.
Fortheexamplegiven,startingat8:00AMinthemorning,thecontrolwillventilatefreshairfor15minutesthen
stopfor15minutes.Thisscheduleof15minutesopen,15minutesclosedwillcontinueuntilthestarttimeofthe
nightschedule.
Morningscheduleisavailableanytimefrom12:00AMuntil11:59AM.
Nightscheduleisavailableanytimefrom12:00PMuntil11:59PM.
4.Press“PROGRAMENTER”againtogotothe“MON-FRI”nightschedule.Repeatthestepslistedaboveforthis
andthe“SAT-SUN”dayandnightschedules.
quest
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Quest DEH 3000R Installation, Operation and Maintenance Instructions
14
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Whenyouhavenishedprogrammingyourschedule(eitherthe7-dayversionortheweekday/weekendsplit
version),usethedown“RH”buttontohighlighttheEXIToptionandthenpress“PROGRAM ENTER”toselectit.
RunningtheVentilationProgram
Pressandholdthe“PROGRAM ENTER”buttonuntilthe“PROGRAM”screenappears.
Usethedown“RH”buttontohighlight“RUN PROGRAM”:
Thenpress“PROGRAMENTER”toselectit.Thedisplaywillappearasfollows:
3.9 Temperature Cutout Programming
Dehumidiersproduceheatwhendehumidifyinganddependinguponoutsideconditions,theventilation
functionmayalsointroducewarmair.Someconditionsmayintroduceenoughheattodrivetemperaturesup.
TheQuestDEH3000RtemperaturecutoutfeaturedisablesallQuestoperationsiftemperaturesreachthecutout
setpoint.
Inmostinstallationsthisfeaturewillnotneedtobeused(thecutoutisfactorysetto99°F).Ifalowertemperature
cutoutisdesired,programthesetpointbypressingandholdingthe“PROGRAMENTER”buttonuntilthe
“PROGRAM”screenappears.Presstheup/down“RH”buttonsuntil“TEMPCUTOUT”highlighted.Thenpress
the“PROGRAMENTER”buttonagaintoselectit.Nowusethe“RH”upor“RH”downbuttonstoadjustthe
setpoint.Press“PROGRAMENTER”toreturntothehomescreen.
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Quest DEH 3000R Installation, Operation and Maintenance Instructions
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sales@questprotect.com
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quest
WARRANTOR:
Therma-StorLLC
4201LienRd
Madison,WI53704
Telephone:1-800-533-7533
WHO IS COVERED: Thiswarrantyextendsonlytotheoriginalresidentialend-useroftheQuest
DEH3000RDehumidier&VentilationSystemController,andmaynotbeassignedortransferred.
FIRST YEAR WARRANTY: Therma-StorLLCwarrantsthat,forone(1)yeartheQuestDEH3000R
Dehumidier&VentilationSystemControllerwilloperatefreefromanydefectsinmaterialsand
workmanship,orTherma-StorLLCwill,atitsoption,repairorreplacethedefectivepart(s),freeof
anycharge.
END-USER RESPONSIBILITIES:WarrantyservicemustbeperformedbyaServicerauthorizedby
Therma-StorLLC.Iftheend-userisunabletolocateorobtainwarrantyservicefromanauthorized
Servicer,heshouldcallTherma-StorLLCattheabovenumberandaskfortheTherma-StorLLC
ServiceDepartment,whichwillthenarrangeforcoveredwarrantyservice.Warrantyservicewillbe
performedduringnormalworkinghours.
TheEnd-usermustpresentproofofpurchase(lease)uponrequest,byuseofthewarrantycardor
otherreasonableandreliablemeans.Theend-userisresponsiblefornormalcare.Thiswarrantyonly
appliestoresidentialapplicationsanddoesnotcoveranydefect,malfunction,etc.resultingfrom
misuse,abuse,lackofnormalcare,corrosion,freezing,tampering,modication,unauthorizedor
improperrepairorinstallation,accident,actsofnatureoranyothercausebeyondTherma-StorLLC's
reasonablecontrol.
LIMITATIONS AND EXCLUSIONS:IfanyQuestDEH3000RDehumidier&VentilationSystem
Controllerpartisrepairedorreplaced,thenewpartshallbewarrantedforonlytheremainderofthe
originalwarrantyperiodapplicablethereto(butallwarrantyperiodswillbeextendedbytheperiod
oftime,ifany,thattheQuestDEH3000RDehumidier&VentilationSystemControllerisoutof
servicewhileawaitingcoveredwarrantyservice).
UPONTHEEXPIRATIONOFTHEWRITTENWARRANTYAPPLICABLETOTHEQuestDEH3000R
Dehumidier&VentilationSystemControllerORANYPARTTHEREOF,ALLOTHERWARRANTIES
IMPLIED BY LAW, INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, SHALLALSO EXPIRE.  ALLWARRANTIES MADE BYTHERMA-STOR LLC ARE SET
FORTHHEREIN,ANDNOCLAIMMAYBEMADEAGAINSTTHERMA-STORLLCBASEDONANY
ORAL WARRANTY. IN NO EVENT SHALLTHERMA-STOR LLC, IN CONNECTION WITHTHE
SALE,INSTALLATION,USE,REPAIRORREPLACEMENTOFANYQuestDEH3000RDehumidier
&VentilationSystemControllerORPARTTHEREOFBELIABLEUNDERANYLEGALTHEORYFOR
ANYSPECIAL,INDIRECTORCONSEQUENTIALDAMAGESINCLUDINGWITHOUTLIMITATION
WATER DAMAGE (THE END-USER SHOULD TAKE PRECAUTIONS AGAINST SAME), LOST
PROFITS,DELAY,ORLOSSOFUSEORDAMAGETOANYREALORPERSONALPROPERTY.
Somestatesdonotallowlimitationsonhowlonganimpliedwarrantylasts,andsomedonotallow
theexclusionorlimitationofincidentalorconsequentialdamages,sooneorbothoftheselimitation
maynotapplytoyou.
LEGAL RIGHTS: Thiswarrantygivesyouspeciclegalrights,andyoumayalsohaveotherrights
whichvaryfromstatetostate.
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Quest Engineering DEH 3000R Installation, Operation And Maintenance Instructions

Quest Engineering
Brand
Quest Engineering
Model
DEH 3000R
Category
Thermostats
Type
Installation, Operation And Maintenance Instructions

Quest Engineering DEH 3000R is a digital control device that offers precise monitoring and adjustment of relative humidity levels, fan operation, and ventilation in your space. With a sleek design and user-friendly interface, it seamlessly integrates with your existing HVAC system, providing you with the convenience of controlling multiple aspects of your indoor environment. The DEH 3000R features a large, backlit LCD display for easy viewing and intuitive navigation, allowing you to quickly access and modify settings as needed.

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