Daikin 90 Plus AFUE - Page 44

43
©2014DaikinNorthAmerica,LLC
GasManifoldPressureMeasurementandAdjust
 Manifoldpressuremustbe
measuredwithburnersoperating.
 Stepstomeasureandadjustthe
manifoldpressure:
 Turnoffgasandpowertofurnace.
 Attachmanometerhosetothe
outletpressurebarbongasvalve.
 Turnongasandpowertofurnace.
 Closethermostat“R”and“W1”
contactstocallforlowstageheat.
 Measurethegasmanifoldpressure
withburnersfiring.
Outlet
Pressure
Barb
©2014DaikinNorthAmerica,LLC
GasManifoldPressureMeasurementandAdjust
 Removeregulatorcoverscrew
fromthelow(LO)outletpressure
regulator.
 Adjusttowerandturnscrew
clockwisetoincreasepressure,or
counterclockwisetodecrease
pressure.
 Replaceregulatorcoverscrew.
(LO)PressureRegulatorAdjust