Quest Engineering DEH 3000 Installation, Operation And Maintenance Instructions - Quest Deh 3000
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Quest DEH 3000
Installation, Operation and Maintenance Instructions
9
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3.4 On/Off and display items
Pressthe“ON/OFF”buttontoturnthesystemONorOFF.
WhenthesystemisON,thesetpoint,fanstatus,operationmode(RUNor
HOLD),andfreshairventstatusisdisplayed.
WhenthesystemisOFF,thecontrolwilldisplaythetime,day,%RH,and
temperature.
Whentheunitisshipped,itisinmanual(hold)mode.
3.5 Setting Clock Time
1.Pressandholdthe“CLOCK”button.Thehourdisplaywillflash.Release
thebutton.
2.Usetheup/down“RH”buttonstochangethevalue.
3.Pressthe“CLOCK”buttonagainandtheminutedisplaywillflash.Use
the“RH”buttonstochangethevalue.
4.Pressthe“CLOCK”buttonagainandAMorPMwillflash.Usethe“RH”buttonstochangethevalue.
5.Pressthe“CLOCK”buttonagainandthedaydisplaywillflash.Usethe“RH”buttonstochangethevalue.
6.Don’ttouchanybuttonsforseveralsecondsuntilthedisplaystopsflashing,thiswillsaveyoursettings.Ifyou
needtochangeanythinggobacktostep#1.
3.6 Adjusting the relative humidity “SETPOINT”
TheQuestDEH3000sensestheambientrelativehumidity(%RH)ofthespaceinwhichitislocated,itcomes
factorypresettohold50%relativehumidity.
Therelativehumidity“SETPOINT”(desiredRHtobemaintained)operates
thedehumidifierfunctionoftheQuestdehumidifier.Ithasnoeffectonthe
optionalVENT(freshairventilation)orFAN(airrecirculation)functionsif
theyarebeingused.
Operation
Thestandardrangethatthedehumidifierholdsaroundyour“SETPOINT”
is3%.Withasetpointof50%,thedehumidifierwillrununtiltherelative
humidityreaches47%.Thedehumidifierwillthenswitchoffuntilthe
relativehumidityreaches53%.
Ifthesetpointishigherthantheambientrelativehumidity,thespacedoesnotneedtobedehumidifiedsothe
dehumidifierwillnotrun.
Example:Setpoint:50%RH
Currentcondition:45%RH–Thedehumidifierwillbeoff(no“O”indicatorwillbedisplayed).
Ifyoursetpointisbelowtheambientcondition,thedehumidifierwillbeonand“O”willdisplay.
Example:Setpoint:50%RH
Currentcondition:55%RH–Thedehumidifierwillbeon(“O”displayed).