LG Multi V 5

DOASOperation
Followinginstallation,DOASconfigurationandtestingincludestheprocess
identifiedbelow.
5.ChecktheSimpleUnitOperation(SupplyAirControl)
‐.Dehumidification: DefaultSettingofActivatingDehumidificationmodeisbasedonOADewPoint.
DewpointiscalculatedbyOATempandOAHumidity.WhenOAtempisgreaterthandewpoint setpoint(e.g 60F),
unitentersdehumidificationmode.
Indehumidificationmode,thereisaseparatetargettemperature,whichisMainCoilTemperature.
Unitwill
cooldowntoCoolingCoiltemperatureandthenreheattotheTargettemperature,under
Cooling/HeatingTargetTemperature.
LGSplitDOASSetUpReferenceGuide
DewPoint:60F
IfOAdewpointisover(e.g 60F)
Dehumidificationmodeisactivated
DOASUnitoperatestocooldown
by55FbyMainCoilfordehumidification
3.Reheatto72FbyHotgasreheatCoil
NOTE: ToControltheUnitbaseonSpaceHumidityorenthalpyfordehumidificationmode,a3
rd
partySensormustbeinstalled.
‐.Additionally,checkwhethertheunitenterstheDehumidificationmodeproperlywiththeManualOverride
function.IftheOAdewpointissetas60Fforactivatingdehumidificationmode,OAdewpointshouldbehigherinorder
toenterdehumidificationmode.Thereisnowaytoset
dewpointdirectlyonmanualoverride,pleaserefertothe
‘DewpointCalculator’ontheSupportMenuonWebUI.There,theadjustmentoftheTemp.andHumiditywillsetup
dewpoint.
‐.Whileadjustingthetemperatureandhumidity
values,checkwhetherthedewpointishigher
thanthevaluewesetintheWebUI,andifitis,
putthetemperatureandhumidityvaluesin
Manualoverride andcheckthattheunit
entersdehumidificationmode.
Temperature
RelativeHumidity
Dewpoint
Support