ASHP for PGH in Climate Zone 6 – GreenBuildingAdvisor

We live in a recently built house (not passive certified but following PGH principles).  The house has three floors with radiant floor heating installed in the basement and main floor.  We’d like to retrofit ASHPs for AC and additional heating on the second floor.

 

After substantial reading and research (thanks to this forum) I was considering hiring a professional firm to do perform the Manual J and system design but the consulting costs for the firm I spoke to were very high for a relatively small project.

calculations (which I’ve attached here).  It was very seamless to upload the

architectural plans and prompt it to use the included window and door schedule.  As I don’t have any HVAC background, my first question is if these numbers seem reasonable?

Based on these calculations I would consider a Fujitsu ARU12RGLX with ducting for the basement and the main floor (installed in the mechanical room) and a Fujitsu ARU9RGLX for the second floor installed in a closet with short duct runs to 2 bedrooms and the main hallway.

Just trying to get a sense if this approach seems reasonable from a sizing

perspective?  The main goal is have more continuous running for humidity control (which can be problematic during our summers).