Hello I am new here and I was hoping that I could find some insight here on how to make my HVAC unit perform better.
We had a home built a little over a year ago and chose to have a Carrier Infinity system installed. Our house is 3200 sq ft single story. Our house has a lot of volume we have some 14’ ceilings and the rest are 12’. The installers installed 2 5 ton SEER 21 units outside and then the AFU’s (I think that’s what they are called) in the attic. We have zoning on each unit one unit cools 3 zones (Living Room, Master Bed, and Kitchen/Nook). The other cools 4 zones (Dining, Bedroom 1,2 Bedroom 3, and the Media Room) We have the Infinity control system for each and remote room sensors in each room. We live in the high desert in CA and our outside temps in the summer can reach 110+.
Now for my few questions. Sometimes the air comes out of the vents and it is really loud is this normal? We keep the house set at about 76 when we are here and the units seem to turn on an off all day. On for 10 mins and then off for maybe 30. Is there a way to program the units better that what I am doing. I have programmed them too cool in the morning to 76 and them shut off when we are not home until 83. Then come back on in the evening and stay at 76. Sometimes I do just use the hold function on the control if I am not comfortable. I guess at some point we had an issue with static pressure the came back and put in another return air duct for each unit. The return sizes are 20X30 with 1” filters in them. I don’t know how to check the static pressure on the control they did not show me. So I can report those numbers. Another thing is this summer our electric bills have been extremely high. I know I haven’t told you about all off my electric uses but I am sure the HVAC is my largest load. We have a gas dryer, stove, water heater…. Last month we used over 2500kWh of power and our bill was almost $600. Maybe this is normal I don’t know. I am just looking to get the best out of my HVAC system. Thanks for the time…BTW the model numbers on the units are 24ANA160A300…..