Summer Performance of Heat Pumps in Heating Climates

Getting enough capacity from a heat pump to heat a home in a heating climate is not that hard, but there are many issues that can arise if you don’t size it correctly.
ACCA (the Air Conditioning Contractors of America) has a series of books that give guidance design of HVAC systems. Manual S is the book that gives guidance on the selection of heating and cooling systems. The focus of this session with be the selection of heat pumps.
Manual S gives specific guidance on equipment selection that specifically pertains to the limiting of oversizing of equipment, so we don't have moisture problems in the summer. I believe this is a topic that is ripe for this audience and the impending electrification only enhances it's need. At last year’s conference I covered what proper airflow is following the guidance of Manual S, this time we'll cover proper equipment selection with a focus on the latent capacity of the equipment versus the latent gain on the structure.  If you live in a heating climate where you deal with humidity in the summertime this is an invaluable topic to understand in its entirety.