Hello Energy Modelers! I am new to Open Studio, and try to model two speed fan based on ASHRAE 90.1-2013 6.5.3.2.1a: two stages of fan control. For example, Drag PTHP from the library to a zone. Click on the PTHP, the edit on the right side will show OS:Fan:ConstantVolume. Anyone know how to change PTHP's fan control type?

Many thanks!