This is the second PR for addendum n (ISC). 1.Provide a lower fan turndown for units with chilled water cooling. The 2/3 fan speed in the original requirement was provided for DX cooling units to prevent coil freezing. 2.Step up the implementation date for chilled water cooling units. 3.Retain ECB Table 11.3.2A which was marked for deletion due to an error in Addendum n (the table was struck out in the motion as the committee wanted the ECB subcommittee to address the changes to Table 11.3.2A as a separate Addendum). 4.Clarify the threshold for 'low cooling demand.'