While waiting for my Carrier guy to get back to me - something stalled - I got a bid from an Amana installer - he is recommending 4 ton (14 SEER RCE Prestige & 80% AMV8 Furnace) whereas everyone else (Carrier, York) has said 3.5 ton.
When asked why 4 ton when others recommend 3.5 his reply was, we always use the 4 ton for 1600 sq ft. - (4 x 400) and you are almost 1600 - plus its only $50 bucks more - so why not?
My current never did a *great* job rig is 3 ton (installed when 1987 1500 sq ft tract house was built). FWIW, Amana guy would pull the current 40 amp and put in a 50 amp breaker.
So here is the Big Q:
Will 1/2 ton one way or another pose any significant problem - eg, too fast/slow cooling, inappropriate cycling, etc?