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3-90-07205R19_05/13
Atmospheric Conversion
AtmosphericConversion:Item#1-00-232200,providesautomaticll,andconvertstheheatingsystem
plumbingfrompressurizedtoazeropressuresystem.Allowsforinstallationintomoreplaceswhere
codesandstandardsrestrictpressurizedsystems.Notethatwhenusingtheatmosphericconversion,
airbleedersandcheckvalvesmayactuallyallowairintothelines.Anotherreasonitisimportanttohave
alicensedPlumberinvolvedineachphaseofyourinstallation.
Whenusingtheatmosphericconversion,thecircuitboarddipswitch#6mustbeinthe“ON”position.
This will lower the overheat temperature parameters to prevent boiling of the water. Since altitude
affectstheboilingpoint,itisalsorecommendedtoset#6to“ON”atelevationsabove3000ft.
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