Where do I add the static pressures for the HVAC system?

On the heating or cooling system detailed screen, in the Delivery System frame, click the Perf Dtl… button. You can enter static pressures there.

Note, static pressures are for data collection purposes only as of v3.0.4; they do not impact delivery efficiency in the modeled home. In an update soon we will add ability to model delivery systems with static pressures.