[tiger08]

Originally Posted by stockups

I was told the supply air in the house is the air going through your filter in the house and the return air is what coming out of the vent Also can someone recommend a good company


Thanks

Southwest air conditioning, Ontario air, both good companies. Sierra air may also be a good one but not super familliar with them.

One hour air, Yes air and all seasons air are at the bottom of my list, especially the last one I mentioned.

[SportyandMisty]

Originally Posted by MediocreButArrogant

Not sure why some of you keep suggesting the problem is due to sizing/capacity when the small temp difference between return and supply air clearly indicates a problem with his equipment NOT related to sizing.

^^^ This ^^^

Originally Posted by lvoc

Again guys a small delta T indicates an AC unit is not operating properly. That requires a professional.

Nothing else indicates a problem. In fact the system should be doing very well if you fix whatever is screwing up the unit.

^^^ This ^^^

Originally Posted by ft_chief

I think you are confusing Return Air with Outside Air temp. The RA thru your RA filters inside your house does not mix with outside air temp. The Supply Air and Return Air are a closed loop inside your house.

While mostly true, for future readers I'll point out that some houses that are very well insulated have a separate programmable system that pulls in fresh air on purpose. They tend to be set to come on every 20 mins or sometimes every 40 mins, and they run for 10 mins. They pull fresh air in because the house is so well insulated the system designers wanted a proactive way to get the fresh air.

The Pulte/Del Webb homes in Solera at Anthem have these systems. So do the Pulte/Del Webb houses in the Club @ Madeira Canyon.

YMMV.

[gvc8]

Originally Posted by tiger08

Southwest air conditioning, Ontario air, both good companies. Sierra air may also be a good one but not super familliar with them.

One hour air, Yes air and all seasons air are at the bottom of my list, especially the last one I mentioned.

+1 sierra air

[Reno Joe]

The important thing here is that you have a good relationship with a good HACV company. Get on an annual contract that includes an annual check up. If things go wrong, you will get priority service over people calling for the first time. That is important if the thing goes out in the middle of July.