Any HVAC guys in the house?

It's according to the unit. What's the make?

Sorry, it's Goodman. Small residential for 1200 square foot house

Last year I did this.
$175 labor
$100 for freon.

He must have lied to me he said the refrigerant was like $50 a pound or something. Quoted me $450 which seemed fair but he's talking like he's done me some huge favor

How old is t he system, probably a three ton , is it a heat pump or do you have a gas fired furnace, is it an old 22 system or a 410?

It depends on how old the unit is. Older ones use the refrigerant that was discontinued so it's really expensive now, like many hundreds to refill the whole thing.

It's heat pump. Got it 8 years ago

R22 is currently $40 per pound, and that before mark up.

Ok it’s a R410 system then, probably be better off replacing the coil in the air handler, 410 operates at much higher pressures and is causing coils to split and leak all over the place.

$500

Itemized could be pretty expensive through a company.
$90 diagnostic fee
$150/repair
$200-$400 to evacuate and replace LL Filter drier
$60/lb of refrigerant.

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Last Edited by Psychedelic Mashed Potatoes on 10/04/2022 02:54 PM

You can evacuate and fill with propane(R-290) if you set the pressures right. Of course, it's illegal, but it will work well and it's cheap.

also it uses 35% less power because the head pressure on the highside is lower (Under 200 LBs)

Depending on the tonnage of the system. R410A is running 90 to 150 bucks a pound.

If it is a Carrier coil throw it out and never use a Carrier coils ever again. They are junk. N frame design plus drain pan in the middle of the coil reduces your cfm performance.

Get a A frame coil and add a TXV.

500 to 1200 bucks if you replace the coil.

I helped a friend out looking for a leak on a small system.

We thought that it was a leak in the evaporator. Installation was 2 years ago.

Upon further review we went under the house and pulled the insulation off a section of the suction line 3/4"

Low and behold never seen this before. We pumped the system up 450 psi of nitrogen. Just a 4" section of the 3/4" had microscopic pin holes. Multiple holes that you couldn't see...

We only could see it if we wet the line and seen a tiny mist in multiple areas with the flashlight.

We are replacing the refrigerant lines... Never seen this...

I've seen this and also along crack in a straight line about 4" long 20ton pac

Bubbles are your best leak search and looking for oil

Yep

Dad had a old torch with a vacuum hose you used the hose around fittings and if your flame glows green you found a leak

Kinda way I use my lighter if I'm lazy

Nothing like the smell of phosgene gas in the morning

LoL what about unsweating a old r12 compressor that s*** is straight mustard gas and I've been hit quite a few times probably hence why I have bad migraines now at 39

Yeah it is bad stuff. Before recovery machines. We would just release the charge to change out the compressor. I never cut the line I just unsweat the lines. Everytime I'd get that nasty phosgene gas as it is with R22. Not sure what R410A is but probably the same or worse.

If you get that burning shit into your sinuses and lungs. You step away and breath heavy to get it out of your lungs. That shit can kill you. R22 and flame = phosgene gas not mustard. Not kidding.

I imagine R12 is way worse as it is way more loaded with chlorofluorocarbons

Yeah shits nasty but to be quiet honest what the running pressures on a 290 refrigerant I've never used it before

I believe that all the recovered R22 is used after the fuel systems on geoengineering.

Have you ever seen a compressor explode with a full charge? It shoots out this lingering white cloud and expands like crazy. I call it the death cloud.

I never used 290

It's ironic that it's legal to charge a system with the potential to damage the atmosphere of our planet but heaven forbid an accident with a flammable refrigerant damage lives or property that an insurance company would have to pay out a claim on.

No but I've had a exv swap for a 400 ton Rtac train the tech prior was supposed to recover 134a he recovered only one side of the circuit when I activated the exv in tech view program BOOOOOOOM About 150 pounds of liquid into the air I was quite f****** pissed