NuAire Labgard NU-430-400 User Manual

OM0228 Page47of99
February/2014
7.5.3.1 ExhaustVolumeCalibrationwithouttheNU‐951‐012MotorizedButterflyValve
 Step1: Activatepowertothecabinet
  Turnonexhaustsystem
 Accesssensorsetupmenu
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 PressCALIBRATEEXHAUSTSENSORtoaccessindividualsensorcalibrationscreen.
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Step2: Turnon
motor/blowerandspotcheckafewdownflowpointstoverifydownflowisclosetothe
desiredsetpointof60fpm+5fpm.
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Step3: Now,measureinflowvelocityusingtherecommendedprocedurefoundinTable7.0.
 Ifnecessary,adjusttheexhaustsystemtoachievethecorrectinflowvelocity.UseTable7.1to
relatedownflowandexhaust/inflowvolumesandcorrespondingaverageairflowvelocities.Itis
alwaysdesirabletoachieveairflowvaluesthataresetascloseaspossibletonominal.Thisis
especiallyapplicabletotheinflowvelocityandit’srelationtoexhaustvolume,sincetheexhaust
sensoronlymonitorstheexhaustairflow.Iftheinflowvelocityiscalibratedattheouteredgeof
therange,agreaterchanceforalarmconditionswouldexistduetoitscloserproximitytothe
alarmlimits.
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PressUP/DOWNtochangeexhaustvolumetothevaluejustcalculatedusingtheinflowvolume.
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NOTE:Assumedownflowvelocityisatthenominalvalueof60fpmforexhaustvolumecalculation
purposesasitwillbeadjustedduringthedownflowcalibrationprocess.
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PressSAVEtoentertheexhaustvolumevalue.
MENU
xx:xx AM xx/xx/xx
UV
FL
UP
DOWN
ENTER
CALIBRATE DOWNFLOW SENSOR
CALIBRATE EXHAUST SENSOR
FIND NEW DOWNFLOW SENSOR
FIND NEW EXHAUST SENSOR
MENU
xx:xx AM xx/xx/xx
UV
FL
UP
DOWN
SAVE
DOWNFLOW = XX fpm SETPOINT = XX fpm
RAW EXHAUST = XXX cfm
CALIBRATED EXHAUST = XXX cfm
USE UP/DOWN TO CHANGE CALIBRATED
EXHAUST, ENTER TO SAVE NEW VALUE
PRESS DOWNFLOW SETPOINT TO CHANGE IT
PRESS MENU TO EXIT WITHOUT CHANGE
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NuAire Labgard NU-430-400 Specifications

General

Brand	NuAire
Model	Labgard NU-430-400
Category	Air Conditioner
Language	English