Originally Posted By: Perry Savas
This post was automatically imported from our archived forum.
I recently had my old HVAC system replaced. My Sub told me to keep the same tonage system (5 Ton). My old Air Handler was from 1989, and my condenser from 1996. I live in Daytona Beach, FL and right on the beach therefore most things don’t survive salt to well. That being said, I have a multitude of new problems that I never had while running my ol system.
1st Problem - My new Variable Speed Air Handler is creating exsessive condensation in my ductwork and on the unity itself. The interior of my ducts are filled with water and ruining drywall, insulation, etc....what can be the problem ???
2nd Problem - The previous homeowner put a 400 sqft addition onto the house. They took a 14" supply right off the main trunk into this room with no return. That's about 2 Tons of Air. It worked fine before but now the trouble begins. If I leave the 14"supply open my AC runs for 6 or more hours straight. If I close the supply My AC Runs great but creates tons of moisture, I'm thinking due to the excessive tonage it's creating, and I cannot find a happy medium, but i never had this problem while the old system was installed and my AC guys are stumped. Now If I add A return in this room of adequate size could this resolve the problem.
Also, I have a new second/separate unit. My AC guys want to put a return for the new unit in a room that is cooled by the old (main) unit. Does that sound right ?
Any Help would be greatly appreciated because i am totally dumbfunded of how this new system can create sooooo many more problems and destroy my house !!