AC down (loss of refrigerant)... need advice

[I_bend_metal]

I would have a leak test done the company i work for also waves the leak test fee if u bought a new system from us. I would want to know wher the leak is 90% of the time the leak is in the indoor coil. as for equipment, 13 seer or higher and make sure if u do go with a whole new 13 seer system that they add a txv valve not a fixed orfice. running a fixed orfice will only get u about 11 seer on a 13 seer system.

A fully matched 13 seer system, even with a fixed orifice, will indeed give you a 13 seer rating. My equipment will actually reach over 14 seer without the addition of a TVX.

That being said, a TXV is a good thing, add in a variable speed motor and we are now starting to get comfy!

[beenthere]

, 13 seer or higher and make sure if u do go with a whole new 13 seer system that they add a txv valve not a fixed orfice. running a fixed orfice will only get u about 11 seer on a 13 seer system.

And what proof of this do you have. or are you just stating an unfounded opinion.

[Swampfox]

Goodman gets 13 seer with fixed metering, even with 410a

[beenthere]

Goodman gets 13 seer with fixed metering, even with 410a

A couple brands do. Or they wouldn't have ARI ratings of 13SEER.

And I just don't recall any brand getting a boost of 2 SEER just for adding a TXV.
But, I'm old and senile, so I may have just forgot.

[I_bend_metal]

Goodman gets 13 seer with fixed metering, even with 410a

Goodman actually can get 14 seer without a TXV!!

[I_bend_metal]

running a fixed orfice will only get u about 11 seer on a 13 seer system.

I want proof of this statement.....and not just because some dude in a pickup truck with a magnetic HVAC sign said so!

[beenthere]

I want proof of this statement.....and not just because some dude in a pickup truck with a magnetic HVAC sign said so!

What if its a van with a magnetic sign. LOL

[I_bend_metal]

What if its a van with a magnetic sign. LOL

Better be a bigger freaking sign in that case!

[Skip 2 my lou]

Goodman actually can get 14 seer without a TXV!!

Many things can be done on paper that don't exist in the really real world. IMHO this is one of the few ways Goodman can degrade itself. Do they even have anything on paper for their reasoning behind sticking with the piston?

The only reason I can think of is if you have an evaporator that failed on a 30 year old "beer can cold" compressor. If you correct the charge...it will die.


"If you build it they will come"

[beenthere]

I don't recall ARI having Goodman rerate any or those units.
Some other manufacturers had to rerate some of their units.

[OpenTrackRacer]

Thanks again for all the feedback. The contractor is going to come out and perform a leak check on the existing system. If I buy anything new, they'll waive the cost.

With that in mind, I had a follow on question. They're quotting me Lennox units for the total replacement option. Can anyone give me an opinion of these models...

13ACX-048-230 and CH33-48C

XC13-048-230 and CH33-50/50C

They're both 13 SEER. The first one has a five year parts and one year labor warranty while the second up the compressor warranty to ten years. The second system is supposed to be quieter as well but that's not really a big deal to me. As expected, the second one is more money.

Any feedback on these systems?

Thanks!