Crown Bermuda Installation Manual

16) Checkthemanifoldpressureandadjustifnecessary.Todothis,usethefollowingprocedure:

a) Connectamanometertotheinletpressuretaponthegasvalve(seeFigure20).

b) Checktheinletpressurewithallgasappliancesonandoff.Theinletpressureattheboilermustbewithinthe

followinglimitsregardlessofwhatcombinationofappliancesisring:

 InletPress(inchesw.c.)  NaturalGas  LPGas

Min. 5.0 11.0

 Max.    14.0   13.0

 Iftheinletpressurefallsoutsideoftheselimits,ndandcorrectthecauseoftheproblembeforeproceedingfurther.

c) Connectamanometertothemanifold(outlet)pressuretaponthegasvalve(seeFigures23and24).

d) Readthemanifoldpressure.Itshouldbesetat:

        NaturalGas  LPGas

    ManifoldPress.(inchesw.c.) 3.5   10.0

e) Ifamanifoldpressureadjustmentisneeded,maketheadjustmentbyturningthepressureregulator(seeFigures23

and24)screwclockwisetoraisethepressureandcounterclockwisetoreducethepressure.Ifamanifoldpressure

adjustmentismade,recheckthelinepressuretobecertainthatitisstillwithinacceptablelimits.Replacethecover

screwontheregulator.

WARNING

FAILURE TO FOLLOW THE FOLLOWING PROCEDURE EXACTLY COULD RESULT IN OVER-

FIRING OF THE BOILER AND A CARBON MONOXIDE HAZARD.

FIGURE18:INTERMITTENTIGNITION  

  PILOTBURNERFLAME