ProSelect Force Steam Gas Boiler Installation Manual

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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16).
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Figure16).
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Figure
16)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.
*SeePre-InstallationSection,Number5ofofthismanualforGasConversionKits.
WARNING
FAILURE TO FOLLOW THE FOLLOWING PROCEDURE EXACTLY COULD RESULT IN OVER-
FIRING OF THE BOILER AND A CARBON MONOXIDE HAZARD.
FIGURE 13: INTERMITTENT IGNITION PILOT BURNER FLAME
XI. System Start-up (continued)