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htlky
LEVEL-VI
Joined: 03 Jun 2006
Posts: 265
 64.93
Location: Louisville, Ky
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 Posted: Wed Jun 18, 2008 11:08 pm Post subject: |
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have had a number of 410's in the carriers, chalked it up to hot tourches! arrg!?!?!??!  |
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superheat
LEVEL-I
Joined: 30 Jun 2008
Posts: 9
2.47
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| Posted: Sat Aug 02, 2008 3:49 pm Post subject: |
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| Are there any flare TEV valves used in residential? |
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ServiceF1rst
HVACPROTech® Admin
Joined: 07 May 2006
Posts: 7750
1220.85
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| Posted: Sat Aug 02, 2008 4:09 pm Post subject: |
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| superheat wrote: | | Are there any flare TEV valves used in residential? |
Not that I've seen in a long time - doesn't mean there are none but I would suspect the OEM's pretty much eliminated them as a pretty high potential for refrigerant loss.
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Of all the instruments utilized in the HVAC/R trades - I trust analog gauges the least. |
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superheat
LEVEL-I
Joined: 30 Jun 2008
Posts: 9
2.47
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| Posted: Sat Aug 02, 2008 4:38 pm Post subject: |
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Thanks, in the old "days " we used flare fittings a lot. I kow the pros and cons just thinking a flare would eliminate overheat of the valve. Also would be a faster change out of the valve.
However I don't see it happening |
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gonefishing
Global Moderator
Joined: 05 Jun 2006
Posts: 3621
443.58
Location: Texas
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| Posted: Sat Aug 02, 2008 5:19 pm Post subject: |
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| superheat wrote: | Thanks, in the old "days " we used flare fittings a lot. I kow the pros and cons just thinking a flare would eliminate overheat of the valve. Also would be a faster change out of the valve.
However I don't see it happening |
I agree 100%. Replaced my system a while back. Flared the drier in just ahead of the
evaporator where it should be. A good flare will last forever............... 
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Leonardo Da Vinci once said:
"Those who give themselves to ready and rapid practice before they have learned the theory,
resemble sailors who go to sea in a vessel without a rudder" |
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subcool2
LEVEL-X
Joined: 18 Sep 2006
Posts: 1422
292.57
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| Posted: Sat Aug 02, 2008 5:24 pm Post subject: |
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| superheat wrote: | Thanks, in the old "days " we used flare fittings a lot. I kow the pros and cons just thinking a flare would eliminate overheat of the valve. Also would be a faster change out of the valve.
However I don't see it happening |
..I thought I saw a Trane coil recently with some type of mechanical connector, maybe flare. From some earlier discussion with Trane distributor reps, the option of converting 22 coils to 410A will be possible, by changing the TXV...
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"if it ain't broke, don't fix it"... |
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gonefishing
Global Moderator
Joined: 05 Jun 2006
Posts: 3621
443.58
Location: Texas
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| Posted: Sat Aug 02, 2008 5:38 pm Post subject: |
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Most OEMs are using the Chatliff fitting on one end of the new TXVs. Placing all TXVs outside of the
coil cabinet would be one of the best digressions our industry has seen. That along with standardized
connections would fix most failed expansion valve problems...........
_________________
Leonardo Da Vinci once said:
"Those who give themselves to ready and rapid practice before they have learned the theory,
resemble sailors who go to sea in a vessel without a rudder" |
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wolfdog
Global Moderator
Joined: 29 May 2006
Posts: 795
77.30
Location: Dallas,Texas
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| Posted: Sat Aug 02, 2008 8:49 pm Post subject: |
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| Brand new 410 valve for an All Style coil yesterday. DOA and had to get a replacement. Last year I had a run of Alco power heads that were failing. The year before it was Parker valves leaking internally and getting jiggy. |
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ServiceF1rst
HVACPROTech® Admin
Joined: 07 May 2006
Posts: 7750
1220.85
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| Posted: Sun Aug 03, 2008 8:38 am Post subject: |
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 But, what were they getting jiggy with?
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Of all the instruments utilized in the HVAC/R trades - I trust analog gauges the least. |
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MechAcc
LEVEL-VI
Joined: 16 Sep 2006
Posts: 302
58.39
Location: Sterling, IL
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| Posted: Sun Aug 03, 2008 8:38 am Post subject: |
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| Just to let everyone know Sporlan has a kit with Chatliff and flare adapters for their sweat on txv's |
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