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  1. Replies
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    354

    I torch the flare after Ive made it to remove...

    I torch the flare after Ive made it to remove brittleness from the copper.

    More often, i cut out the flare and use a coupling with silflos.
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    476

    Running R22 for 35 years. Reused lineset for new...

    Running R22 for 35 years. Reused lineset for new R410a. couple times, leaks appear at solder joints. POE or R410 does a great job of cleaning.
  3. Replies
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    252

    Had an engineer tell me, years ago, that the...

    Had an engineer tell me, years ago, that the wire's current rating is not dependant on the size of the wire, but the material used to insulate it.
  4. Check condesate drain for proper vent and traps

    Check condesate drain for proper vent and traps
  5. Replies
    9
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    252

    Only concern would be to have the common colors...

    Only concern would be to have the common colors used in HP setups. r-bl-yel-white-orange, etc.

    For me, Gets real confusing when troubleshooting and wire color switches two or three times.
  6. Virgin refrigerant liquid enters the liquid line...

    Virgin refrigerant liquid enters the liquid line , pulled through the TXV and then enters compressor and is stored in the cond. coil.
  7. Why not just close liquid line service valve and...

    Why not just close liquid line service valve and pump down and add liquid from virgin refrigerant bottle to get a close charge.
  8. We really have to wait until 2048 to see if they...

    We really have to wait until 2048 to see if they aren't as good.

    My experience with thirty year old CU's is they have a replacement compressor and have had a cpouple condenser motors replaced.
    ...
  9. Sounds like Spirit Air. Most companies would...

    Sounds like Spirit Air.

    Most companies would include this as routine on a new compressor replacement.

    Ask them how moch to replace the whole condensing unit. much less labor and coils are...
  10. Replies
    7
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    353

    Cap terminal are designed to rip the electrical...

    Cap terminal are designed to rip the electrical connection apart when they bulge, thus killing the power
  11. Replies
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    264

    did compressor feel hot? Maybe coincidence it...

    did compressor feel hot? Maybe coincidence it resets when you are there. Could it be bypassing internally- only reason it would "now work" after turning off then on. If it is scroll, make sure it...
  12. Replies
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    917

    I only use a non electric siphon hose. doesn't...

    I only use a non electric siphon hose. doesn't get it all, but the sponge will get the rest.
  13. If lucky, only one of two of the conductors,is...

    If lucky, only one of two of the conductors,is open. In that case, the tech can ground one side of the transformer and complete the circuit through the metal. As stated, wireless pump down works...
  14. Replies
    7
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    353

    they should have a release mechanism to keep them...

    they should have a release mechanism to keep them from exploding and vent the pressure. Guess it didn't work!
  15. Are you checking in the hottest time of day. ...

    Are you checking in the hottest time of day. What Ive seen.

    wrong fan motor speed. failed cap. and vovercharged or dirty.

    Any bmay cause compressor to turn off on internal overload until it...
  16. Replies
    1
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    172

    minisplit and fresh air

    Designing a new house. Fresh air is required, per energy code. If I go minisplit, how is OA damper interlocked with minisplit and what OA system do you suggest?
  17. Replies
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    222

    Check on converting existing propane to NG. May...

    Check on converting existing propane to NG. May just need an orifice change. Minis may not keep up.

    Geo hase 30% contribution from government. May be equal to air heat pump pricing after that...
  18. Gripes me when I design a system, then the...

    Gripes me when I design a system, then the installer will change duct lay out that I designed. Maybe they have a better perspectyive on the situation, but they better call me before they change my...
  19. Might be a slow flowing drain causing Float...

    Might be a slow flowing drain causing Float switch to be activated (or rather deactivated)
  20. Replies
    4
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    313

    Have tech check out to see if the Scoll...

    Have tech check out to see if the Scoll compressor is starting in reverse.
  21. Replies
    12
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    468

    Can be done, Have a good tech set that up for...

    Can be done, Have a good tech set that up for you. You can have a selection switch added on the wall.
  22. Trane use to require line set replacement as a...

    Trane use to require line set replacement as a condition of R410a, else they wouldn't honor warranty. Still the case??

    BUT,I have never had an issue with old oil in lineset when I have upgraded. ...
  23. Replies
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    379

    some manufactures have illustrated picture of...

    some manufactures have illustrated picture of various system seytups. They include boxes next to the important stuff to enter your data. I think Armstrong/Allied Air and Goodman are a couple.
  24. I do bakeries. Use to use nitrogen to blow out...

    I do bakeries. Use to use nitrogen to blow out refer condensers. The cinnamon sugar dust smells great. I then realize that the whole place could blow as soon as the dust cloud made its way to the...
  25. Thread: Puzzled

    by timjimbob
    Replies
    14
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    551

    Scroll. Have you tried to add 410 to get 15...

    Scroll. Have you tried to add 410 to get 15 degree. TXV on indoor coil, I assume.
  26. Replies
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    904

    scroll ran backwards after I momentary killed...

    scroll ran backwards after I momentary killed power.
  27. Replies
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    904

    I must admit, I have left withoiut verifying the...

    I must admit, I have left withoiut verifying the system was working.

    HO Complaint was occassionally, AC wasn't cooling. Also, when it wasn't cooling, the CU sounded different.
    OK, I get out...
  28. Bearings. They heat up and seize after the unit...

    Bearings. They heat up and seize after the unit runs.
  29. If you have two systems, could be the drains are...

    If you have two systems, could be the drains are tied tegether.
  30. You could have syncronized dampers, but the whole...

    You could have syncronized dampers, but the whole house AC(that is in the cooler zone) would have to be controlled by the thermostat and need to be "called on" to satisfy the sound proof room heat...
  31. Replies
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    904

    "He left without seeing it wasn't cooling"! If...

    "He left without seeing it wasn't cooling"!

    If this was the case, he is the wrong man. Serrvice man can tel;l if it is cooling from the gauge readings. Are you sure it wasn't working when he...
  32. Replies
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    673

    New install, with 97% furnace,

    New install, with 97% furnace,
  33. Replies
    16
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    673

    neg pressure setup allows water level to drop...

    neg pressure setup allows water level to drop when blower starts. Waste water is dumped until slow drain causes float to turn off blower. A lot of water, retained in the coil is then drained from...
  34. Replies
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    673

    Found that wiring that way, on a neg pressure...

    Found that wiring that way, on a neg pressure coil, cause short cycling. And creates an overflow anyway. Any thoughts/
  35. Replies
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    911

    What does install manual say?

    What does install manual say?
  36. Had a HO who demanded, and got 64 degrees. AC...

    Had a HO who demanded, and got 64 degrees. AC company used a large single stage equipment. Problem was sooty mold and back of sheetrock was all wet. Do not ry to achieve 64 degrees without...
  37. Replies
    16
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    673

    overflow water switch recommendation

    I am tying a condesate water switch to a 97% furnace. 2H/2C system. What circuit should I hook this to?
  38. Replies
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    699

    Certainly know who is paying DG522's tuition

    Certainly know who is paying DG522's tuition
  39. Bad amping motor (ifit were seizing) could cause...

    Bad amping motor (ifit were seizing) could cause cap to blow. Furnace running on limits- caused by a blower motor running too slow. All related to bad motor, quite possible.

    Hey, bad circuit...
  40. Replies
    11
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    492

    Manual J calcs take alot of time. As a...

    Manual J calcs take alot of time. As a contractor, I do not give that info up easily for someone else to use. I use a third party engineering company to do Manual Js. You could call one of them.....
  41. Replies
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    193

    daiken- off the shelf parts

    Daiken conventional split systems are new in this area. Do they use regularly available parts?
  42. Replies
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    2,069

    ECM motor.. module replacement. I usually will...

    ECM motor.. module replacement. I usually will cut an access hole in theside of the cabinet so I can accss the module on the ECM. Most of the time, the module only is bad and motor doesn't have to...
  43. Replies
    44
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    2,069

    helps to not use a multi hp motor. I scratch...

    helps to not use a multi hp motor.

    I scratch the bracket location on the old motor. Sharpie is always dried up.
  44. Replies
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    1,271

    Went to a copeland compressor seminar. We asked...

    Went to a copeland compressor seminar. We asked about biflow suction filter and agent says there is one Emerson makes. It was a johnstone sponsored seminar. I'll see what the part number is.
  45. When it your own, I can't keep from hovering. ...

    When it your own, I can't keep from hovering. Always worried he will cut his hand off or catch something on fire. OK he is now close to thirty and still worry he may get hurt. Hard to not remember...
  46. Replies
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    357

    There have been concerns voiced about fiberglass...

    There have been concerns voiced about fiberglass particles in the air stream, but not a big enough issue to ban its use. Not here, at least.
  47. Thread: Outdoor AC

    by timjimbob
    Replies
    4
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    295

    It will work. Ypour neighbor won't like it.

    It will work. Ypour neighbor won't like it.
  48. Replies
    7
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    357

    Duct board is designed for air stream use. Why...

    Duct board is designed for air stream use. Why do you think it is a health risk?
  49. Replies
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    1,120

    Law of physics. Work = energy=heat. All work...

    Law of physics. Work = energy=heat. All work produces heat at a rate of 3.4 BTU per watt, input. Even humans about 600BTU per worker. Crazyfuzzy is right on. A watt is a watt is a watt. Any work...
  50. Replies
    5
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    684

    any ports have a shrader valve?

    any ports have a shrader valve?
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