I am looking at getting a new split heat pump system this fall. I wanted to be a little more educated as to the effects coil sizing and CFM have on my comfort so I can better voice those concerns to the professionals who will be coming to talk to me about my system install. As no one will better know what I define as comfort, I want to understand the effects changing these system parameters has on my comfort.
For a given system, if everything else were equal, as I understand it, a smaller indoor coil will get colder than a larger coil, increase latent cooling, decrease sensible cooling, lower EER, increase delta T, and increase cycle time.
As I understand it, these are the exact same results as reducing CFM if everything else remained equal, but that also adds the effect of reducing air noise.
Please let me know if I am not correct in my understanding here.
I do not have a grasp at all on what effects changing the indoor coil size has when in heating mode. That is what I am trying to understand. Any thoughts?
As far as CFM, it seems to me that a reduced CFM in heating mode would increase delta T.