Curious if there are laws or requirements in place, specifically in the state of Texas, that establish a minimum tonnage requirement based on certain square footages for residential applications?
I have a 2,762 sqft house (8ft ceilings throughout the 2/3rds of the house, 9ft in the remaining 1/3rd) that was built in August of 2005. The builder installed a single 5 ton unit using a damper system to divide that single system into two zones - up and down.
It seems to be underpowered and after talking with friends, I've learned that laws may exist requiring a 2nd unit in my case. If such a law or requirement exists, if you know where I could find the documentation, that would greatly help!
Thanks for any help or suggestions you may have.