Heatiator Heatilator BH60 - Manual (Page 35)

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Atmospheric Conversion
Atmospheric Conversion: Item # 1-00-232200, provides automatic fill, and converts the heating
system plumbing from pressurized to a zero pressure system. Allows for installation into more
places where codes and standards restrict pressurized systems. Note that when using the atmo-
spheric conversion, air bleeders and check valves may actually allow air into the lines. Another
reason it is important to have a licensed Plumber involved in each phase of your installation.
when using the atmospheric conversion, the circuit board dipswitch #6 must
be in the “ON” position. This will lower the overheat temperature parameters
to prevent boiling of the water. Since altitude affects the boiling point, it is also
recommended to set #6 to “ON” at elevations above 3000 ft.