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  1. Did you try turning the power off and then on...

    Did you try turning the power off and then on again?

    If that works just send us a check for $275.00 and we'll call it good.

    :cheers:
  2. Replies
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    For brazing pipe that big I'd want a full-sized...

    For brazing pipe that big I'd want a full-sized oxy-acetylene setup with a fairly beefy rosebud tip.

    Maybe even 2 of them with a second guy helping to heat up that copper while you shove silphos...
  3. Your thinking is a little backwords on this too. ...

    Your thinking is a little backwords on this too. It kind of goes against conventional thinking, but "restrictions" in a squirrel cage fan system actually cause a motor to work less hard.

    The air...
  4. Why would you think higher HP would be better? I...

    Why would you think higher HP would be better? I think it would be worse.

    Motors like to do work. They are happiest when they are running close to FLA. If a motor is oversized then the amp draw...
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    Do these things have doors, and if so are the...

    Do these things have doors, and if so are the gaskets in good shape and are the doors closing properly?

    Once per week is someone propping the doors open for an extended time in order to load...
  6. Yeah right. Tethers are great when the place is...

    Yeah right. Tethers are great when the place is brand new and the inspector is there, but it usually don't take long before someone disconnects and then "forgets" to hook them back up again.

    I...
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    OK, since you're in Canada I'll bet you got...

    OK, since you're in Canada I'll bet you got confused on the lengths of pipe that he had.

    25 feet of 1 inch pipe, then 3 feet of .5 inch pipe, then the furnace.

    The city official wanted to size...
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    Huh?? I'm with Yakima Dave on this one. By...

    Huh?? I'm with Yakima Dave on this one.

    By your and the lady at the city's logic, it doesn't matter how big you make the gas pipe, if there is a reducer in it it all has to be sized as if it were...
  9. Not sure how you'll start a HVAC company when you...

    Not sure how you'll start a HVAC company when you don't know anything about HVAC. Sure you can rent an office and answer the phone, but who are you going to send out to the service or install calls?...
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    Thank you rundawg (and Mr. Davis) for setting me...

    Thank you rundawg (and Mr. Davis) for setting me straight.

    I guess nevermind what I said about cold air being able to burn better and being more efficient.

    :cheers:
  11. How big was the old unit? 5 tons is the biggest...

    How big was the old unit? 5 tons is the biggest size they make. Was the old system also a 5 ton?

    If the old unit was smaller, this might be your answer. Smaller systems with smaller evaporator...
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    I have never heard an argument for it decreasing...

    I have never heard an argument for it decreasing efficiency, especially from any "learned folks with credentials". How would it decrease efficiency?

    It INCREASES efficiency because of 2 reasons. ...
  13. pecmsg has nailed it. This is a very common...

    pecmsg has nailed it. This is a very common problem. The electrical boxes on the outside of the coolers/freezers should be weather-proof boxes, and the ones on the inside should be regular ones. I...
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    Yeah do that, but get yourself some of this stuff...

    Yeah do that, but get yourself some of this stuff first...

    https://www.dap.com/media/34395/seal-n-peel-clr_18324.jpg
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    What makes you think it needs recharging? ...

    What makes you think it needs recharging?

    Tiny refrigeration systems like this thing are what's known as "critically charged" systems. They require a minuscule amount of refrigerant and it can...
  16. First of all, if they are offering to give you...

    First of all, if they are offering to give you $1100 I would take it, and then cancel the home warranty and then get another company out there. Those home warranty companies are known for doing...
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    I've never doped them, and I don't recall ever...

    I've never doped them, and I don't recall ever seeing dope on them, so therefore I guess I'd have to say NO!
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    Have you ever heard the expression "Loud pipes...

    Have you ever heard the expression "Loud pipes save lives"? Just get rid of the stupid muffler and be done with it.

    In all reality very few units come with mufflers on them and they really don't...
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    Can't you just use the burner that's built into...

    Can't you just use the burner that's built into the MUA to test the high limit? That's what I do. There should be a way to force it into high fire which usually does the job if it's somewhat warm...
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    Hold on there before you go telling everyone it's...

    Hold on there before you go telling everyone it's safe. If the air handler is in the same room as a conventional gas/propane water heater then I would say it's not safe. This is because the open...
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    One reason is because soft soldered refrigerant...

    One reason is because soft soldered refrigerant joints are against fire code. (In a fire they can come apart and either feed the fire and/or create toxic fumes).
  22. Hindsight is 20/20. I commend the dude for...

    Hindsight is 20/20. I commend the dude for trying. It sounds like he has some skills with the torch and that he almost got it. It also sounds like it was a kind of a fun experiment, so what the...
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    Another difference between residential and...

    Another difference between residential and commercial stats is that with residential the setback periods are called wake, away, home, and sleep. Commercial stats call them occupied and unoccupied. ...
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    Will there be some kind of back up heat with a...

    Will there be some kind of back up heat with a controller that automatically switches between the heat pump and the back up heat based on outdoor temperature? If so, then everything might be OK.
    ...
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    Sometimes turning it off for 8 hours or 24 hours...

    Sometimes turning it off for 8 hours or 24 hours or whatever isn't long enough. Ice can take a LONG time to melt sometimes.

    You did have that thing back together with the access panels on before...
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    Are you sure all of the ice melted from the...

    Are you sure all of the ice melted from the evaporator coil? Evaporators are usually hard to see and perhaps it's still frozen up. Try running the heat for a few minutes to see if that improves...
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    You should adjust the sheaves so that the amps...

    You should adjust the sheaves so that the amps are about the same as before. Definitely check the amp draw and make adjustments as necessary so that the motors don't exceed nameplate FLA.

    You...
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    Sounds like you did good. If you think about it,...

    Sounds like you did good. If you think about it, there should really be weather tite junction boxes on the outside of the cooler/freezer and normal type on the inside, but the way everyone does it...
  29. In addition to what AR said above, an oversized...

    In addition to what AR said above, an oversized system will also be noisier and will be more problematic/will have a shortened life.

    If you want something that provides more comfort, is quieter,...
  30. Wow, that sucks. Here's the only way to fix it...

    Wow, that sucks. Here's the only way to fix it that I know of.

    Wait a few months until you get a really cold day. Then go to a car dealer and trade that sucker in for a new one.

    Good luck!
  31. The adapter R600 made to screw onto his...

    The adapter R600 made to screw onto his refrigeration hose is handy and very easy to make.

    You can get pretty much any air chuck, along with a 1/4" MPT x male flare adapter.

    Here's an example...
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    The only effects I can see, assuming that the...

    The only effects I can see, assuming that the belts can be adjusted to maintain the same RPM as before, would be that the belts would be a little more expensive and would last a lot longer.

    A "B"...
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    They do make pipe insulation that is UV...

    They do make pipe insulation that is UV resistant. It might be kind of hard to find, but I'm sure you could order a couple of pieces from the interwebs. Otherwise I would try some black Rustoleum...
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    With 2 evaporators on one condensing unit, I have...

    With 2 evaporators on one condensing unit, I have sometimes seen bubbles in sight glasses even when the units have the proper charge. Did he torch the receiver before he left to find out what the...
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    Has a final inspection by the city inspector been...

    Has a final inspection by the city inspector been done yet? If so, what did they say about it?

    I'm assuming that a permit was pulled and that the guy who did the work was licensed and bonded to...
  36. I of course was just being a smart ass in my post...

    I of course was just being a smart ass in my post above.

    I'm intrigued by BB's ideas. Hey BB (or anyone else for that matter), would you keep and use the existing expansion valves, which are...
  37. I'm sure if you can't make it work, some hack...

    I'm sure if you can't make it work, some hack shop down the street sure can.

    Maybe in addition to BB's ideas, pipe those 2 evaps that are already hung to one of the condensing units, then hang the...
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    Your air conditioner is too big. It cools down...

    Your air conditioner is too big. It cools down too fast and then shuts off before the humidity can be removed. What you want is a smaller system that has nice LONG run cycles. This is common sense...
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    Man, that sucks. I'm sitting here starring at...

    Man, that sucks. I'm sitting here starring at your pictures and racking my brain on how I would solve that. I got nothing, other than I would have been alternating between solder and flux and...
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    I'm not sure exactly what you're talking about,...

    I'm not sure exactly what you're talking about, but from what I understand, soldering aluminum takes some serious skills compared to soldering/brazing copper.

    If you're just going for a temporary...
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    Pffffft...Word's on the street that conventional...

    Pffffft...Word's on the street that conventional vehicles don't need solar panels.
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    Do you actually believe this? You think in a few...

    Do you actually believe this? You think in a few years every other car manufacturer will go out of business? Sure, that sounds realistic.

    Think of what would happen if electric cars did start to...
  43. Defrost is sometimes optional on walk in coolers....

    Defrost is sometimes optional on walk in coolers. They might have gotten away without it if it weren't for them leaving the door open.

    With that being said, there is no good reason that I can...
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    As long as it was an accident and you are truly...

    As long as it was an accident and you are truly sorry, I think we can let it slide this one time. Just don't ever do it again.

    By the way, welcome to HVAC-TALK! Your user name implies that you...
  45. Would something like this work? ...

    Would something like this work?

    https://images-na.ssl-images-amazon.com/images/I/71YpgMFVvmL._SL1205_.jpg
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    There's no such thing as a free lunch. Well,...

    There's no such thing as a free lunch. Well, actually there is, but its usually a pretty crappy lunch that might have been dropped on the floor and probably has hair in it.

    Then they charge you...
  47. Most of the high end systems are designed to use...

    Most of the high end systems are designed to use what is known as a "communicating" controller. These are proprietary thermostats that are designed to better control functions such as variable speed...
  48. Thread: old fridge

    by ammoniadog
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    C'mon BB, really? Are you just messing with us?...

    C'mon BB, really? Are you just messing with us?

    The problem with laying it down is that the oil that's supposed to be in the bottom of the compressor can drain out and go somewhere else. Also,...
  49. Thread: old fridge

    by ammoniadog
    Replies
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    703

    That's not how things work. If it "needs...

    That's not how things work. If it "needs refrigerant", then that means some of the refrigerant has leaked out from somewhere.

    If the system still has the proper amount, adding more will not...
  50. Duh.... Take another look at what you wrote and...

    Duh.... Take another look at what you wrote and see if any light bulbs light up.

    Seeing make up air units without filters is a big pet peeve of mine. I used to go around to different places...
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