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  1. Replies
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    20oz bottled water and a 20oz Coke both costs...

    20oz bottled water and a 20oz Coke both costs $1.50 at the vending machine. Since bottled water is usually just filtered city water, we can see that the retail price and raw materials cost are very...
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    Northcutt got a violation letter from EPA last...

    Northcutt got a violation letter from EPA last year for the 12a/22a/502a
    Which has been going for like the past 20 years.

    Just around the same time as some investment company submits a...
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    And China connected lobbyists are influencing the...

    And China connected lobbyists are influencing the EPA.
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    Not to nitpick, but you still got it wrong. Read...

    Not to nitpick, but you still got it wrong. Read this: http://www.gpo.gov/fdsys/pkg/FR-2015-04-10/pdf/2015-07895.pdf

    What you were taught in training might be outdated, just as this discussions...
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    maybe some sort of two part stuff that cures with...

    maybe some sort of two part stuff that cures with each other instead of the moisture in air?
  6. Thread: ICECOLD

    by ICanHas
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    I think its what you think it is... snake oil. ...

    I think its what you think it is... snake oil.

    http://i.imgur.com/AIz5OKI.jpg

    Who did they play golf with last weekend that put them in this situation? Offer to call tech support for...
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    Your requirements are unclear. You should start...

    Your requirements are unclear. You should start your own thread in refrigeration section and clearly explain what you need and your limits.

    The needs of passenger vehicle ACs are different from...
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    There isn't much space for condenser or...

    There isn't much space for condenser or evaporator in a modern car.
  9. Replies
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    R-170 or R-32 aren't allowed part of the list for...

    R-170 or R-32 aren't allowed part of the list for household fridges. That's why I'm saying go check the EPA page.


    Don't sweat it. There are A1 replacement for those that can be used in existing...
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    Hydrocarbon... future or not?

    The natural refrigerants ammonia and sulfur dioxide were the earliest in use.
    CO2 was too difficult to use. We then had methyl chloride, which exists in the nature as well.

    Freon replaced those...
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    Enviro-Safe site still has suggestive comments...

    Enviro-Safe site still has suggestive comments trying to appeal the product for DIY AC.

    Instead of just saying for use in equipment specifying R-290 only and to follow the equipment service...
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    Though you're an OEM repair, you seem quite aware...

    Though you're an OEM repair, you seem quite aware of the rogue products like HC-12a and 22a floating around. are you someone who specialize with HC stuff or speaking on behalf of a HC type company?...
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    What if propane was topped off on top of R22?...

    What if propane was topped off on top of R22? Enjoy your hydrofluoric acid smoked burger.



    The graphs bust the myth that HCs are so efficient that it will make a pig fly.

    Hydrocarbon...
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    I meant the belief that "hydrocarbon is...

    I meant the belief that "hydrocarbon is substantially more efficient" is a myth created by a trick that exploits capacity.

    For example
    Danfoss MTZ18 have ratings for both 404A and 134a.

    For...
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    They're all A3, except for R32, which is A2L....

    They're all A3, except for R32, which is A2L. R-170 is ethane, which is a hydrocarbon.



    Yes, it does, but what's your point? Whisky isn't considered "flammable", but, if you heat it up, it...
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    It could be due to bad crimping or prior...

    It could be due to bad crimping or prior mishandling (yanking on terminal by wire :censored: ) that caused the crimped area to arc
  17. Replies
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    This thread clearly looks like shade tree trial...

    This thread clearly looks like shade tree trial and error DIY ;)

    Auto systems are custom engineered systems. The DIYer seems convinced he can determine the charge better than the factory, but he...
  18. Was the compressor the size of a household fridge...

    Was the compressor the size of a household fridge like the picture I posted or was it fist sized?


    What sort of temperature range are you talking about? Thermoelectric is notoriously inefficient,...
  19. Many wine chiller they sell with digital...

    Many wine chiller they sell with digital temperature setting uses thermoelectric. I heard sealed box electronics for use in extremely dust places use peltier as well.



    This one is a lot more...
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    I want the chuck that lets you attach loose end...

    I want the chuck that lets you attach loose end capillary to the pusher. Everything else, I an come up with easily.
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    Blank user status.

    Dad asked us to report the glitch when we run into users with blank titles.
    I have but they're not getting adjusted anymore. should we still bother?
  22. Replies
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    Because, they're meant to be like a window unit....

    Because, they're meant to be like a window unit. Stay out of it.
  23. There are other ones you can take a look at as...

    There are other ones you can take a look at as well. Sometime in the past year, the code language may have been incorrectly understood that drain must allow cleaning without having to disassemble. It...
  24. 1/20th hp R134a compressor. What is this used for?

    http://www.grainger.com/product/PANASONIC-Refrigeration-Compressor-4MG94

    I was looking at some capillary charts and spotted 1/20 hp. I didn't think such a small compressor existed, but I found it....
  25. It's not really fantasized threat. It's true that...

    It's not really fantasized threat. It's true that building automation is not designed to fend off the same type of breach as iPhone or bank web servers. Service menu is kept locked behind sequences...
  26. Embedded Systems poses a new level of security threats

    It is possible to see the actual working of mechanical devices. They can not contain malwares.

    Embedded systems have a firmware and can have many hidden codes that can be exploited and all "soft"...
  27. Replies
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    I am not sure. It might be something that's...

    I am not sure. It might be something that's soluble in refrigerant but coagulates.

    There's a picture of inside of clogged capillary here and explanation of stuff that takes place...
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    http://www.walmart.com/ip/Pennzoil-Siphon-Pump/167...

    http://www.walmart.com/ip/Pennzoil-Siphon-Pump/16795103#reviews
    http://i.imgur.com/FhypwA2.jpg

    KISS
  29. Replies
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    I believe the sludge forms from discharge gas...

    I believe the sludge forms from discharge gas baking stuff which then lodges in the capillary.
    Back flushing the condenser with R22 is important or it will re-clog.
  30. Replies
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    Did you read my long response on previous page? ...

    Did you read my long response on previous page?

    http://hvac-talk.com/vbb/showthread.php?1786451-Cycling-Clutch-Orifice-Tube-question&p=21014811#post21014811

    Since we expect our cars to get...
  31. It will be a point of drama.

    It will be a point of drama.
  32. Replies
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    That's because your weather is mild thus far....

    That's because your weather is mild thus far. You'll be around 260-300 psi on a sunny 100 degree day in bumper to bumper traffic.
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    Freon 12 is superior

    Freon 12 is superior
  34. Replies
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    Where do you set the best point? Factory...

    Where do you set the best point?

    Factory charge is designed to give fair performance over winter defogging, highway driving on a humid day in Florida as well as stop and go on a 110*F day in...
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    PS: if you're using the same compressor with a...

    PS: if you're using the same compressor with a different engine, you should check that compressor RPM at idle is about the same as what it was before. The computer knows how fast the compressor is...
  36. Thread: Nest T Stat

    by ICanHas
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    Incoming call from. . . or email from. . .

    Incoming call from. . . or email from. . .
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    http://www.macromatic.com/blog/understanding-time-...

    http://www.macromatic.com/blog/understanding-time-delay-relay-functions/
    This table is well worth bookmarking.
  38. Influencers are often tasked with delivering...

    Influencers are often tasked with delivering certain messages in their own hand typed words. Both threads do. In this case, the message is that "MC is customer oriented and provides exceptional...
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    Patent process requires proper formatting, but as...

    Patent process requires proper formatting, but as you can see from here, utter gibberish in contents are allowed.

    https://www.google.com/patents/US6662569
    ...
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    What's going on between ICOR and DuPont?

    They had identical "drop-in" refrigerants in the past.

    R-422A = DuPont MO79 = ICOR One Shot
    Replaced by R-422C ICOR One Shot C, very similar.

    R-417A = DuPont MO59 = ICOR NU-22
    Replaced by...
  41. It was a fairly obvious spam thread from what...

    It was a fairly obvious spam thread from what looks like a burner account.
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    True. I'd like to know the 0.6-0.7 conversion...

    True. I'd like to know the 0.6-0.7 conversion factor.
  43. Replies
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    Light is radiated energy and it will turn into...

    Light is radiated energy and it will turn into heat in the end, except for what escapes out windows.
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    It's just a difference in unit. Everywhere else,...

    It's just a difference in unit. Everywhere else, cooling/heating capacity is expressed in kW.
    3,413 BTU=1kW

    Also, 400cfm/ton is a value used for general comfort cooling assuming ordinary...
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    Can you explain this a little bit and where I can...

    Can you explain this a little bit and where I can read up on it?
    When you burn a 300W light bulb, it puts out 1,000 BTU, mostly as radiant heat, which is absorbed by things in the room.
    So,...
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    Do I have this right? Now: Power on = timer...

    Do I have this right?
    Now: Power on = timer start, but timer recycles, so it uses lockout relay to suppress the recycling.

    http://www.airotronics.com/site/product-intervalon_TGL.php
    Something...
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    Before the days digital meters, probably. I would...

    Before the days digital meters, probably. I would use 2000K range.
    Copeland recommended cut off is 500K, after you wipe down the terminals.
    ...
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    All the modern meters will have the equivalent....

    All the modern meters will have the equivalent. Some meters will shift through ranges to give you the most precision but only some will give you manual override. You use the automatic can get real...
  49. The latest link for actual Federal Register...

    The latest link for actual Federal Register
    http://www.gpo.gov/fdsys/pkg/FR-2015-04-10/pdf/2015-07895.pdf

    I would like to add that even though EPA has cleared cutting loose HCs in legal...
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    So, what is there to GAIN from using hydrocarbon...

    So, what is there to GAIN from using hydrocarbon given that they too are susceptible to patent racket too?
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