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Old 09-09-2011, 06:19 PM   #16
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convert R22 evap coil to R410a - need TXV


Just wait untill you have to clean it out of a system. You will have a much different opinion.

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Old 09-09-2011, 08:13 PM   #17
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convert R22 evap coil to R410a - need TXV


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Originally Posted by Master of Cold View Post
Just wait untill you have to clean it out of a system. You will have a much different opinion.
I learned that the hard way.
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Old 09-10-2011, 04:55 AM   #18
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convert R22 evap coil to R410a - need TXV


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Originally Posted by AirstarFilters View Post
Yet to experience. Lots if nay saying contractors , zero home or business owners. Used in automotive industry with smaller orifices for tears.
Yep. And lots of those systems have been back to the shop to have their screens and orifices changed out.

The garage just down from me, makes lots of money on systems that have had leak stops put in them.
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Old 05-21-2015, 08:25 AM   #19
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convert R22 evap coil to R410a - need TXV


Hi Raylo,

I was wondering if you ever were able to install the Carrier coils in your R22 A/C HVAC system? If so, can you please tell me how it went? Was it do able?

Also, I live in NJ and none of the local distributors are willing to sell me the coils. I called about 6 places. They all want to install it. Did you run into that issue?

Has anybody else faced this issue, where they are not willing to sell you parts? Its such a pain...


Thanks,
John M.
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Old 05-21-2015, 08:37 AM   #20
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convert R22 evap coil to R410a - need TXV


What's your full unit model number , if the coil's available...we can get it. Funny how now we're learning about the real reason for clogged TXVs and screens - R410a breaking down the gasket / seals in the valves...NOTHING to do with Super Seal , A/C Leak Freeze and similar products.
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Old 05-21-2015, 08:45 AM   #21
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convert R22 evap coil to R410a - need TXV


Thanks Airstar. I used a electronic leak detector and it seems like the evap coils are leaking. I am putting the UV dye in tomorrow to confirm, but 90% that the coils are leaking. The coil model number is: CNRVP3617ACA

Btw, is this normal practice for Carrier dealers? To not sell parts to consumers? Also, thats good to know about the R410A. Scary, but good to know...
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Old 05-21-2015, 09:36 AM   #22
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convert R22 evap coil to R410a - need TXV


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Originally Posted by AirstarFilters View Post
What's your full unit model number , if the coil's available...we can get it. Funny how now we're learning about the real reason for clogged TXVs and screens - R410a breaking down the gasket / seals in the valves...NOTHING to do with Super Seal , A/C Leak Freeze and similar products.
First I have heard of this. Can you share where you got the information from?
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Old 05-21-2015, 10:03 AM   #23
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convert R22 evap coil to R410a - need TXV


It's not the refrigerant, it's an additive that was being added to the compressor oil from Copeland causing failed TXVs.
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Old 05-21-2015, 11:16 AM   #24
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convert R22 evap coil to R410a - need TXV


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It's not the refrigerant, it's an additive that was being added to the compressor oil from Copeland causing failed TXVs.
Did Emerson ever issue a final report? There was also a rumor of an unauthorized rust inhibitor coating change from suppliers of Copland compressor parts?
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Old 05-21-2015, 11:51 AM   #25
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convert R22 evap coil to R410a - need TXV


I think there was, but I'd have to look.
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Old 05-21-2015, 02:05 PM   #26
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convert R22 evap coil to R410a - need TXV


Yes, after some initial reluctance one of the locals sold me the R-410A TXV. The coil I had purchased online ~2007 from AC Overstock.com or such. The coils were readily available online then and not that $$. (like ~$300)

But I decided to not replace the R22 condenser just then so I pumped it down, installed the coil with the pre-installed R22 TXV, evacuated and brought it back up. Also checked subcooling and dialed in the charge. Still going strong 4 years on from coil replacement, 19 years total on condenser. <probably just jinxed myself>

Good luck, I hope you can find the parts you need.

Quote:
Originally Posted by ashishm02 View Post
Hi Raylo,

I was wondering if you ever were able to install the Carrier coils in your R22 A/C HVAC system? If so, can you please tell me how it went? Was it do able?

Also, I live in NJ and none of the local distributors are willing to sell me the coils. I called about 6 places. They all want to install it. Did you run into that issue?

Has anybody else faced this issue, where they are not willing to sell you parts? Its such a pain...


Thanks,
John M.
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Old 05-21-2015, 02:12 PM   #27
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convert R22 evap coil to R410a - need TXV


Oh wow, you kept the same compressor/condenser and had no issues? I was thinking if I can't get the R22 coil, I would buy a 410A coil and replace the TXV, but it just seems like a lot of work. Your way seems much easier
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Old 05-21-2015, 02:20 PM   #28
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convert R22 evap coil to R410a - need TXV


My only problem was a small leak in the original coil. I was toying with the idea of upgrading to a new R-410 2 stage condenser while doing the work, but opted for the cheaper quick fix.

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Originally Posted by ashishm02 View Post
Oh wow, you kept the same compressor/condenser and had no issues? I was thinking if I can't get the R22 coil, I would buy a 410A coil and replace the TXV, but it just seems like a lot of work. Your way seems much easier
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Old 05-21-2015, 03:17 PM   #29
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convert R22 evap coil to R410a - need TXV


Quote:
Originally Posted by AirstarFilters View Post
What's your full unit model number , if the coil's available...we can get it. Funny how now we're learning about the real reason for clogged TXVs and screens - R410a breaking down the gasket / seals in the valves...NOTHING to do with Super Seal , A/C Leak Freeze and similar products.

R410A does not break down seals or gaskets.

If you have a paper from any manufacturer stating it does. Post a copy of it.
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Old 05-21-2015, 03:19 PM   #30
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convert R22 evap coil to R410a - need TXV


Quote:
Originally Posted by ashishm02 View Post
Thanks Airstar. I used a electronic leak detector and it seems like the evap coils are leaking. I am putting the UV dye in tomorrow to confirm, but 90% that the coils are leaking. The coil model number is: CNRVP3617ACA

Btw, is this normal practice for Carrier dealers? To not sell parts to consumers? Also, thats good to know about the R410A. Scary, but good to know...
Standard practice not to sell parts to home owners unless they we're installing the part also.

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