ECM Fan Performance Chart: Dip Switch Settings

This technical bulletin covers an error presented in the ECM Fan Performance chart for the GT/GS/H series, “B” revision packaged units.

If you have a unit which was shipped with an Installation, Operation, and Maintenance manual with a revision dated of February 23, 2010 or earlier, the information in the ECM Fan Performance Chart shows reversed dip switch settings for the “B” and “C” CFM options.


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