[ryanxo]

I think the main issue is the lack of air flow. Air comes out of the vents very very soft while in everyone elses house it comes out fast. I don't know how to fix it.

2 Ton Trane XR11 outside and inside air handler is matched.
1344 sq ft single story house. Brand new insulated windows and insulation in the attic.
I've checked all the ducts and sealed them up.
All the ducts are insulated flex duct running off a main fiber board trunk.

I've had 2 ac Techs out here both say the system is fine. All they really did was check the freon, crawl up in the attic for 10 minutes, take my $100 deductible and leave.
My friend let me borrow his temp gun and I have been going crazy with it.
In the main trunk in the attic I took off one of the ducts and stuck the temp gun inside... it was 50 degrees. Used the temp gun at the vent(register) and it was 68 degrees with minimal air flow. All vents have low air flow.

At night air coming out of the vents is about 58. I dont think the issue is the ducts they all seem fairly new. A few of the runs are questionable with a 90 degree bend or 2 but still shouldnt effect air flow to ALL registers.

Is there a way to make this thing blow faster so the air has less time to warm up!?

 

[ryanxo]

Duct work is 6 inches except for the 2 bathrooms which are 4 inches which I think is right isnt it?
Insulation is about 10 inches deep in most places except for where I laid a board down to crawl out to each of the ducts to check for leaks.

How big is the return for a 2 ton unit supposed to be?

 

[ryanxo]

There are 11 vents/supply registers in the house. 1 return.

Flex duct running to all of them. All are 5 or 6 inches (not sure exactly)except for the 2 going to the 2 bathrooms. They are 4 inches.

 

[ryanxo]

All the ducts are insulated flex duct running off a main fiber board trunk.

sooo yes

 

[ryanxo]

OK guys I took A LOT of pics. Wanna help me out with a diagnosis?

OK This is the return... AKA where it comes out of my house and runs into the AC. Obviously I took the flex duct piece off so I could take a pic of inside. I put it back on and metal taped it when i was done. Why the Heck is their rust inside?

Resizing the pics ... be back in 1 sec

This is the side of my AC. Pretty fubar Duct work... really hoping that isn't the problem.

This is what it looks like with the return duct back on.

THis is the beginning of the main trunk. That 90 degree turn right off the bat cannot be a good thing.

And here is the whole thing

 

[ryanxo]

Really? I thought it looked clean! hahaha

 

[ryanxo]

The sad part is I've had one guy clean it and 2 other AC techs come out and tell me there was nothing wrong. Yet with one little picture u guys pointed it out. Now how the hell should I clean this thing? Go at it with a can of evap coil cleaner? I don't wanna take it out of the system.

Thanks btw!

 

[ryanxo]

Here is a close up. Forgot I took this one too.

 

[ryanxo]

Outside coils were cleaned by the same guy that cleaned the inside ones. He took most of the panels off and sprayed cleaner all over it. Then went to town with the water hose.

I don't know how to put it in high speed mode. I tried to look at it and figure it out but there are just random wires that go everywhere. Not nearly as simple as everyone made it sound.

Yes it passed the intense sheet of paper test!

I really don't think it's leaking ducts that are the issue. I've been up there every day this week with the AC blasting and cannot find any leaks that are big enough to feel any air at all. The only way I can tell is with a temp gun right on the duct it is cooler than the air around it.

Yesterday, my AC was running literally ALL day. There was condensation constant dripping out the pipe out back. The copper line was sweating so much that the slab the AC is on was wet and thats with the copper line having brand new rubber insulation on it. Bought that from Lowes.

It's cooling its just not pushing out hardly any air. I am beyond frustrated with this damn thing.

Should I just rip all the freaking duct work out and redo it? I'm completely at a loss here on what to do.

 

[ryanxo]

It's hotter than the devils butthole here today. A very nice 94 degrees outside with an index of 101. A very coooool 79 inside. The temp in the house is steady rising


Helpppp meeee