Daikin 90 Plus AFUE - Measuring Temperature Rise

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©2014DaikinNorthAmerica,LLC
TemperatureRiseMeasurement
 Operatefurnacewith
burnersfiringfor
approximately10minutes.
 Ensurethatallregistersand
ductdampersareopen.
 Placetempsensorsinthe
returnandsupplyducts.
 Subtractthereturnair
temperaturefromthe
supplyairtemperatureto
determinetheair
temperaturerise.
©2014DaikinNorthAmerica,LLC
TemperatureRiseMeasurement
 Adjusttemperatureriseby
adjustingthecirculator
blowerspeed.
 Increase theblowerspeed
toreducetemperaturerise.
 Decreasetheblowerspeed
toincreasetemperature
rise.
 Refertothe“Startup
ProcedureandAdjustment‐
CirculatorBlowerSpeeds”
sectionofyourfurnace
manualforinstructionson
howtoadjustblower
speeds.
TSupply
DoNOTmeasure
supplyairtempin
thisarea
MeasureHere
TReturn
RISE=
TSupply–TReturn