Daikin 90 Plus AFUE - Page 55

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©2014DaikinNorthAmerica,LLC
CheckingDuctStatic
 Measurethepositivestatic
pressure ofthesupplyductatthe
outletofthefurnace.
 TotalStaticExample:
 Negativestaticpressure:‐.4”w.c.
 Positivestaticpressure:.2”w.c.
 Totalexternalstaticpressure
wouldbe:.6”w.c.
 Thedifferencebetweenthetwo
numbersisthetotalexternalstatic
pressureonthesystem.
©2014DaikinNorthAmerica,LLC
QUESTIONS?