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  1. #27
    Join Date
    Jul 2000
    Location
    Guayaquil EC
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    12,776
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    Quote Originally Posted by BALloyd View Post
    It was tounge in cheek regarding Icemeister saying we might end up back with R12 and R502.

    Sent from my SM-N910W8 using Tapatalk
    I suppose I shouldn't have posted that in Sporlan's forum, but I was so full of hope for the old days.

  2. Likes BALloyd liked this post
  3. #28
    Join Date
    Aug 2013
    Location
    Templeton MA
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    18
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    R 290

  4. #29
    Join Date
    Aug 2013
    Location
    Templeton MA
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    18
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    We have just started testing our smaller systems with R290 against 1234yf and 134a. 1234 had a 7% drop in capacity from 134 and 290 had an increase in capacity by 35%. And has no GWP. But it can blowup.

  5. #30
    Join Date
    Mar 2013
    Location
    Billington Heights, NY
    Posts
    9,373
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    Quote Originally Posted by Danicus187 View Post
    We have just started testing our smaller systems with R290 against 1234yf and 134a. 1234 had a 7% drop in capacity from 134 and 290 had an increase in capacity by 35%. And has no GWP. But it can blowup.
    so can 1234yf in the right circumstances, just like 290. but in a normal functioning system, neither are bombs
    Experience - knowing when to get the hell out of the way and plug your ears. "Don't be a sissy. Turn it on!"
    Poodle Head Mikey - "the world is well populated with the unknowing and the uncaring and the stupid."

  6. #31
    Join Date
    Sep 2014
    Location
    NW Arkansas
    Posts
    969
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    With 290, what happens when a compressor blows out?

    Sent from my SAMSUNG-SM-G891A using Tapatalk

  7. #32
    Join Date
    Jul 2012
    Location
    WA
    Posts
    2,008
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    Quote Originally Posted by Snaple4 View Post
    With 290, what happens when a compressor blows out?

    Sent from my SAMSUNG-SM-G891A using Tapatalk
    You need fuel and oxygen for an explosion. I suppose if there was enough air in the system it could explode due to a burn out.

  8. #33
    Join Date
    Aug 2013
    Location
    Templeton MA
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    18
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    I've worked on small refrigeration in kitchens where on several occasions I've found burnt charred wires and such. It would be unfortunate if there was a significant leak in such a system. Refrigerant grade propane has no odor. That being said it works really well. We will be continuing to test with it in very low temperature this week to see how it compares to 404a

  9. #34
    Join Date
    Mar 2007
    Location
    In the Conservatory with a Lead Pipe
    Posts
    13,534
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    Quote Originally Posted by Snaple4 View Post
    With 290, what happens when a compressor blows out?

    Sent from my SAMSUNG-SM-G891A using Tapatalk
    Probably a flame thrower just like 404A

  10. #35
    Join Date
    Mar 2007
    Location
    In the Conservatory with a Lead Pipe
    Posts
    13,534
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    Quote Originally Posted by Danicus187 View Post
    We have just started testing our smaller systems with R290 against 1234yf and 134a. 1234 had a 7% drop in capacity from 134 and 290 had an increase in capacity by 35%. And has no GWP. But it can blowup.
    I'm begining to see why they had no problems switching to 290 on small units. They are saving money on the tiny coils and compressors. It's mogreen in the pocket.

  11. #36
    Join Date
    Jan 2010
    Posts
    12,748
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    Correct me if I'm wrong but doesn't DuPont (Chemours) hold the patient on R1234yf and has entered into a anti-competitive arrangement with Honeywell ?
    Correct me again but wasn't it after there original refrigerant patients ran out that all these new blends arrived ?
    Seems to be making a complete circle once again.

  12. #37
    Join Date
    May 2011
    Location
    Ontario, OR
    Posts
    368
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    Following.

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