There was an increase in space temperature at End X, which is evidenced in the trend. This increase was due to our disabling the fans for quarterly greasing. 

Initially, the air handlers were configured to raise their supply air set points when in Start-Up mode; this mode occurs whenever the program loses fan status, such as during unoccupied periods, so that upon start-up, the system is not overloaded trying to pull the supply air temperature down as fast as possible. Since the only time the fans are theoretically off is when we grease them, which only takes thirty seconds, there is no need to gradually reduce supply air temperature.

I have changed the Start-Up supply air temperatures at EX and EY from 61 to 55, which is roughly the supply air temperature the air handlers normally produce. This should reduce any space temperature increases after quarterly greasing tasks.