Since no Static was measured ,I think they have no way of knowing if a 3 ton coil,with or without the ypass ,I mwentioned will work.
Originally posted by ahdofu
No pressure measurements were taken. The house heating needs are for a 5-ton unit as I live in the pacific northwest area and heating requirements far surpass the cooling requirements. As I said in my original post, the cooling requirements were based on Manual-J analysis. This pointed to a 3-ton AC unit. Given my existing blower, however, I'm unable to go with a 3-ton system as the smaller indoor coil would restrict the furnace too much during the heating season. Also the AC manufacture has a maximum limit of one ton in over sizing the indoor coil. So in all I have the following two options:
1) A 5-ton AC with a 5-ton indoor coil or
2) a 4-ton AC with a 5-ton indoor coil.
I'm leaning towards the latter option and in my original question, I was inquiring about people's experience in this area. Thanks for all the replies.