Quote:
Originally Posted by Capt. Carrera
This issue occurred once before. It was an=bout six years ago. I put down the vapor barrier and all was well. Obviously the solution was marginal. One summer of 100 degree temps at 85% humidity was too much.
The suspected culprits remain, poorly installed ducts, poor ventilation, both, or other. All I know is I don't want to deal with someone akin to the Travelers trying to "fix" the problem. |
Based on the fact that the problem may exist more when the temps are humidity are high, I would direct my attention to the overall airflow of the system. It sounds like your system is under designed for the environment in which it operates. Does the system have enough CFM designed into the air handler? Is the evaporator undersized for any reason? Does the system rely heavily on flex duct? If so are they collapsed? Restrictive return grills and undersized filters will also contribute to this problem. I would fully recommend that you contact a contractor that specializes in heat pump design. The chances are that they may be from more of a system design school of thought opposed to throw products at a problem and see if it helps.