Hi y'all, newby here. I recently removed a number of trees that were shading my house and now I may have an AC capacity issue. Now during the summer if I set the units below about 80F they will both run nearly continuously. I don't know if it is normal, if my units are old and need attention, or if they are under sized. Anyway here is the data.
I have a 4200 ft^2 house with two Carrier heat pumps for cooling. The model numbers are 38YH030310 and 38RQ034320. The YH unit runs constantly during the day with a setpoint of 80F. The outside air temp is 95F, pressures are 260 and 55. Air temperature out of the register is 57-60F depending on distance from handler. Return air temp is drawn near the floor and about 77F. The air filter is fairly clean.
What is the capacity in tonnage and BTU for each unit and does it appear normal for the one unit to run all day to maintain temperature?
[Edited by jd990 on 07-16-2006 at 04:09 PM]