From: "TURTLE" 
Newsgroups: misc.consumers.house
Subject: Re: Is my A/C system too small?
Date: Mon, 28 Jun 2004 15:43:40 -0500


 wrote in message news:qi6nc0ho39flurggvuk63t64bs3fjiect7@4ax.com...
> I have a brand new house approx 2000 sq feet the home builder had a 3
> 1/2 ton carrier weathermate system installed.I live in houston high
> humidty and gets pretty hot here.During the winter the system seemed
> to heat good enough,but now that summer is here its cooling is
> terrible.During the day if we set it too 75 once it gets past noon the
> unit never shuts off so we have to raise to 78 or 79 and its not even
> really hot outside its 90 or so.We have had the a/c contractor out
> several times for other problems and monday their coming out once
> again to check the system.I dont think the unit is big enough i know
> you cant really use the rule of thumb method but everything ive read
> says we need more along the lines of a 4 ton unit.One other thing the
> builder told us to keep the humidity setting at 70 but according to
> the ASHRAE faq it should be between 30 to 60% any thoughts or
> suggestions would be really appreciated.
>
>
> Thanks
>
> David

This is Turtle.

On 2,000 Sq. Feet home Well insulated, and Roof venting good. The 3.5 ton System should keep your house at 75ºF year round but your
going to see it run a bunch to keep it there. If it will let the house temp. go above 75ºf during the day. You have a problem and
could well be that it needs a 4 ton as to the heat load calculation that was run on the house. You did get the heat load calculation
to look at did you not ?

If it will rise above the set point of 75ºF ---- Raise some Hell.

TURTLE


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.711 / Virus Database: 467 - Release Date: 6/25/2004