R22 R410 Dead horse... new stick.

[HTHVAC]

I am the home owner.

Contractor# 1

Replaced leaking coil.

Never did work right. Run 30 mins... compressor quits.

24 hrs later.

Fan motor in air handler dies. (Bad luck)

Contractor# 2

Fixed fan.

Compressor still squeeling and then quitting.


Contractor# 2

Deduced compressor was "shot" that it was incapable of building head preasure.

Also discovered the condensor was R22 and the new coil said R410...

He said thats fine so long as contractor# 1 installed a correct expansion valve.

Contractor# 2 Replaces compressor. New one pumps but the same again. Squeely gassy sound.. then goes off.

Contractor# 2 Inspected the Exp valve and could not confirm it was R22 or not.

The new stick.....

Did Contractor# 1 use R22... or R410 Gas???

Did they replace the exp valve.... ???

How... do know???

I am NOT... replacing a 3yr old R22 condensor... with a new compressor. And if it is R22... im gonna request recovering it and re using that expensive crap.


I am at a loss. Just want my a/c for christmas (Florida)

... ya. 86F today...

[frank]

So, what do you want us to do?

[Rob White]

.

I think I agree with Frank.

Maybe Contractor number 3 will be of more help?



Rob

.

[The Viking]

Only one solution,
Find contractor #3 but this time find a contractor you can trust and who knows what (s)he's doing.

BTW, as you had so much trouble, I am willing to waive my daily rate but travel and accommodation will need to be covered.

[HTHVAC]

How do I know what type of ***** they put in there?

Is there some way that I can tell ?

How do I know that I have the correct expansion valve for that ***** after I have determined that?.


As for Contractor number 3 I want to have this information before they show up because I want to know what I'm dealing with instead of getting a run around. I'm tired of the try this try that maybe this maybe that.

I work around Industrial Refrigeration lot at a Chemical plant... the compressor is running but then there's a pressure release like a relief valve and then it cuts off compressor to seems like it's getting logged. What sounds like from what I've been reading expansion valve is allowing liquid to get back to the compressor because it's not functioning properly.

If that's the case the machinary mechanical Tech in me tells me there's either the wrong ***** for this condensor or the wrong expansion valve
..... i just want to know how I can check to see what ***** I have and what expansion valve the rest of the unit is functioning.

[HTHVAC]

I manage contracts at work as well and a trustworthy contractor is a needle in a hay stack.

[The Viking]

R22 is a medium pressure refrigerant whilst R410a is a high pressure refrigerant, any knowledgable engineer would easily be able to tell the difference by comparing pressure against temperature.

However, how much is these repairs costing you and how much is a new system on your side of the pond?
BTW, what system are we talking about? Make? Model?

[cadwaladr]

No r22 here,there are replacements but 410 it too high pressure for old systems probably best to invest in some new equipment with refrigerant that has low odp.

[HTHVAC]

System is international comfort products.

If i knew what i was looking for on pressure vs temp i could use my personal manifold to check.

[mikeref]

Using the wrong refrigerant is not easy. R22 systems have a 1/4 inch access valve. R410a and R32 are 5/16.

[Grizzly]

Using the wrong refrigerant is not easy. R22 systems have a 1/4 inch access valve. R410a and R32 are 5/16.

They were originally supposed to be as you state Mike.
However no-one seems to be sticking to that basis.
IE 5/16 = R410a.
I work on European units that are on 410a and have 3/8 service valves.
A temperature pressure comparision is as others have stated the was to go.
Grizzly

[mikeref]

They were originally supposed to be as you state Mike.
However no-one seems to be sticking to that basis.
IE 5/16 = R410a.
I work on European units that are on 410a and have 3/8 service valves.
A temperature pressure comparision is as others have stated the was to go.
Grizzly

Thanks for the info Grizzly. Helped with 9 spits last month. All were either using 410a or R32. (5/16 valves.)
Best wishes to you and yours over the Xmas and new year. ..Mike.