Chiller is operating even though the temperature is is within the setpoint

edit

Hi there! :D

I recently took a look into the details of the Cooling system in my model and i found out that it is operating even though there is no use for cooling and it got me wondering why.

The airtemperature is well within the setpoints and from what i understand the chiller should not be operating then. The temperature should rise to the setpoint before the chiller is activated. So why is this happening? (See figures below)

Also here is a link to my model, if anyone are interested.

Cooling Setpoint (Black), Chiller electric energy (Blue), Zone Air temperature (Turquoise)

.

The HVAC system