Scott:
SW> I am hoping some of the folks in atl.hvac will reply. I lerned the hard wa
SW> not to post home-owner qs there. Here is the deal
Guess they get a little snooty over there.
SW> Received two very different opinions of my a new HCAC proposal SW> 1) stated that an oversized 4 ton Maytag with a varaible speed fan would be SW> good for my updatirs. The problem is the air is not adequatly moving and SW> the system runs and does not bring down the temp quickly. Goodman unit 3 SW> ton with on small return sheet rocked over (fixed now). SW> SW> 2) Anoither HVAC tech agreed May is good stuff, but strogly objected to SW> oversizing with the 4 ton unit. Stated it would constatlyy come on and of
SW> thus incresing the electric use and not dehumidifing.
As the others stated, oversizing in this case is Not a Good Thing. not sure about the constantly on and off (my HVAC expertise is pretty much limted to changing the filter ) but the not dehumidifying is right. An oversized unit will not run long enough (key word is 'long'). BTW, don't you want to humidify the air in winter vs. taking additional moisture out?
SW> ANy way to tell who is correct. My first HVAC person, whom SW> I trust and has done work for me in the past repsectfully suggeted that the SW> econd tech did not fully understand the varible speed. SW> SW> Both were going to redo some duct work to make move the air better
Rectangular ducts will pass more air than cylindrical ducts. Had an addition done two summers ago; when talking about the system in general the present capacity came up. We noted the Dining Room was always cool. Part of the problem was when that room was added by a previous owner they tapped existing round ductwork at right angles with round ducts. These sections were replaced with rectangular duct
- much better!! :)
SW> Any thoughts (Spell check in on the blink, pardon the spelling)
See you over in one of the Windows conferences!
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