I am getting estimates on a new system as my trane is on its last leg (13 years) and I did go to the contractor map and they came out and did (imagine this) a real Manual j, came out looked at ducts and a gave me a estimate.
My question is he is suggesting a few different units but I do want the VS unit,
4TWZ0036B Heat pump
TAM7ao36B Air handler
I have about 1800 square in WC florida and he is reworking my returns and putting in a larger couple of ducts and sealing the existing 5 year old duct work as it never was sealed with mastic. The owner a real nice guy and the local company is a Father Son company. The owner told me that my internal pressure is way to high and reworking the ducts return air will correct this which makes tons of sense and I have read that here in the last few months researching a new unit here on this site. I like the company and will not nickel and dime him on a PROFFESIONALLY installed and properly sized and adjusted system as I have read here is what I need.
The question I have is the communicating part of the above, don't I want a Tam 8 for that part and the thermostat. I am not sure if I want to deal with the Trane clean air effects but I will research that this weekend.
Any advise please and thanks