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Quest DEH 3000R Installation, Operation and Maintenance Instructions

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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.

Quest Engineering DEH 3000R User Manual

Questions and Answers: