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  1. Carrier/Bryant has had a lot of issues with coil...

    Carrier/Bryant has had a lot of issues with coil leaks (as have other manufacturers). Google "formicary corrosion" and you can read tons about it. The replacement coils have mostly been converted...
  2. Anytime you increase the MERV rating of a filter...

    Anytime you increase the MERV rating of a filter you are going to add air resistance to the unit. I'm not a fan of arbitrarily using a heavy duty filter just because you can jam it in the existing...
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    I prefer to keep systems as matched as possible...

    I prefer to keep systems as matched as possible for warranty purposes. Does Trane still give the full warranty if you use the ADP coil? Also, I find it hard to believe Trane doesn't offer their own...
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    Are you looking for a permanently installed...

    Are you looking for a permanently installed solution or something you can remove? Mini-split systems would be the quietest by far, or you could get a portable A/C. Portables dump the hot air out a...
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    Here's my recommendation for an inexpensive wi-fi...

    Here's my recommendation for an inexpensive wi-fi stat:

    http://www.pro1iaq.com/t701i
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    925

    I think the name of the tool generates some...

    I think the name of the tool generates some confusion. The "R410A" flaring tool is meant for flaring mini-split linesets for systems using R-410A. This flier from Yellow Jacket explains the...
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    Short answer: No. Most primaries are made of...

    Short answer: No.

    Most primaries are made of aluminized steel with a stainless secondary heat exchanger IIRC. Carrier experimented with using secondaries made of other metals with a coating...
  8. Yes and no. The furnace doesn't have the...

    Yes and no. The furnace doesn't have the capability of two stage cooling, so one of two things will have to happen: Either they wire the A/C so it only runs in high (which defeats the variable...
  9. Flex connectors like that are common in HVAC. ...

    Flex connectors like that are common in HVAC. Nothing on your system should ever be getting anywhere near hot enough to melt that. I'm sure it's fine.
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    Unless your lines run in some really wacky way...

    Unless your lines run in some really wacky way then there's no reason you couldn't do a flush on the lineset. Be aware that switching to R410 also requires a change of metering device (your coil...
  11. Yes. A hum is OK. Nothing to worry about.

    Yes. A hum is OK. Nothing to worry about.
  12. Some engineer somewhere (who's never had to...

    Some engineer somewhere (who's never had to actually fix something he designed) thought it was a good idea.

    Had to change a dual blower in a 5 ton drive Goodman once. Took pictures first, and...
  13. I've been hammering this into my kids for a...

    I've been hammering this into my kids for a couple of years now. I want them to learn a trade for their own good. My father pushed me into trade school, and I'm glad he did. I explained to them...
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    I love the argument that "Europe has been doing...

    I love the argument that "Europe has been doing it for years, quit being wimps!". No one is saying that R290 wouldn't work or isn't a good refrigerant. There's three really simple reasons for not...
  15. I love dual fuel systems. Yes, it will take you...

    I love dual fuel systems. Yes, it will take you a while to get your payback on it BUT if you're building a new house the idea is that you're going to be in it for a long time. The beauty of dual...
  16. Calls like this one are tricky. Could removing...

    Calls like this one are tricky. Could removing the bulb have killed your compressor in a week? It's possible, but I doubt it. By removing the bulb from the line he is forcing the valve to be fully...
  17. There's a bunch of things that could be wrong,...

    There's a bunch of things that could be wrong, none of which you should be attempting yourself. If she can't afford a service call start skimming the garage sales for a used window A/C.
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    You got what you paid for. An AC system should...

    You got what you paid for. An AC system should only have one filter-drier on it. At this point, to make it right the company would have to remove all the refrigerant and cut out the drier in the AC...
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    263

    I'm not sure why he would've had to remove the...

    I'm not sure why he would've had to remove the refrigerant at all, worst case if the condenser doesn't hold it all he might need to add a pound when he re-starts it.

    I would definitely get...
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    Time to call for service

    Time to call for service
  21. Replies
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    675

    The phone shouldn't catch fire or anything like...

    The phone shouldn't catch fire or anything like that. Do as the others have suggested - call it and see if you can pin down where it is. If you do cut the ducts open with tin snips watch for sharp...
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    If I knew for a fact a system had R290 in it I...

    If I knew for a fact a system had R290 in it I wouldn't touch it. I wouldn't want anything to do with it. I don't have equipment for dealing with hydrocarbon refrigerants nor do I care to buy such...
  23. It's micro-channel, as long as it holds pressure...

    It's micro-channel, as long as it holds pressure it should be fine. If you're ordering your own stuff online then you're already rolling the dice, might as well put it in.
  24. That first set of photos is completely wrong if...

    That first set of photos is completely wrong if that's a supply. (It looks like there are other ducts coming off the top, so I will assume it is the supply). It looks like someone did that...
  25. Replacing coils in an 18 year old unit is not a...

    Replacing coils in an 18 year old unit is not a very good idea. You're near the expected life of the equipment, and with R-22 being phased out it's going to get super-expensive if you need to add...
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    Breakers are not meant to be an operating...

    Breakers are not meant to be an operating control. Whoever this guy is doesn't sound like he's very comfortable wiring these up. I don't know what recourse you have, but that's not the correct way...
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    All of our Supco's got sent back to the factory. ...

    All of our Supco's got sent back to the factory. No one said why, just box them up and send them out. We are stocking the AG3000 now.
  28. Thread: HVAC reset

    by dougfamous
    Replies
    7
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    287

    If the outdoor fan is working but the compressor...

    If the outdoor fan is working but the compressor isn't, then it's time for a service call.
  29. It must be wonderful to have so much free time...

    It must be wonderful to have so much free time that you can take apart your system and tinker with it.

    In the meantime, I stand by my post. There's no reason for you to go "re-engineering" your...
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    Outdoor is 2.5.

    Outdoor is 2.5.
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    237

    There's a few reasons the service valve would ice...

    There's a few reasons the service valve would ice up, all of which would require you to call for service.
  32. Why are you taking it apart at all? Leave it the...

    Why are you taking it apart at all? Leave it the way they designed it.
  33. Replies
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    The main difference between the Maytag and...

    The main difference between the Maytag and Airtemp systems is the outdoor unit. The Airtemp is a basic condensing unit, the Maytag is the "premium" model with the IQ drive. Either system would use...
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    A few thoughts: - You should not use a shared...

    A few thoughts:

    - You should not use a shared return unless both furnaces are "twinned" - meaning they are wired to both operate at the same time off of the same thermostat. If yours are split up...
  35. It could be any one of a dozen different things. ...

    It could be any one of a dozen different things. The breaker should not have caused this particular issue, but I can't say you didn't need a new one. I would recommend calling the company back and...
  36. The correct answer is: What does the...

    The correct answer is:

    What does the installation manual for the unit say? If the unit is rated to operate with the line sizes as they are then you're OK to flush and re-use. If not, you should...
  37. Replies
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    It could be urine, it could be salt, it could be...

    It could be urine, it could be salt, it could be pool chemicals. No matter what it is, it's definitely ruined that condenser. If you replace it I'd suggest putting the new one up on a stand. Even...
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    You could have quite a few problems - anything...

    You could have quite a few problems - anything from the wrong capacitors or motor to a wiring problem. You need a service technician to properly diagnose and repair it.
  39. Yes. You've wasted money and time replacing...

    Yes.

    You've wasted money and time replacing parts that are obviously not the problem. Please call a service technician and have it properly repaired before you make your problem worse or get...
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    That's classic animal urine damage. Do you have...

    That's classic animal urine damage. Do you have a male dog?
  41. Hmm, let's see: - No trap on AC drain -...

    Hmm, let's see:

    - No trap on AC drain
    - Flexible appliance gas connector not allowed, can't penetrate cabinet with it, and no bushing or protection.
    - black iron gas line crooked
    - re-used...
  42. Replies
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    If you hadn't post pictures of it, I would not...

    If you hadn't post pictures of it, I would not have believed this. Holy. Sh**. The combination of absolute balls, determination, and outright stupidity required for this is legendary. If I had to...
  43. This is directly from LG's installation manual...

    This is directly from LG's installation manual (page 39)

    "Components such as oil traps, solenoid valves, filter-dryers, sight glasses, tee fittings, and other after-market accessories are not...
  44. Replies
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    There are known issues with Carrier indoor...

    There are known issues with Carrier indoor evaporators and leaks. Have your service company contact Carrier for the warranty information.
  45. A few thoughts: - 5 ton drive furnaces...

    A few thoughts:

    - 5 ton drive furnaces (especially Carrier) REQUIRE either two side return ducts or a bottom return duct. I'd be pretty sure your current system is just a single side return and...
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    I understand your situation - I was there once. ...

    I understand your situation - I was there once. However, you need to calm down a bit and avoid the temptation to just take the cheapest way out. I wouldn't recommend you purchase a unit yourself...
  47. Your unit should've come with two manuals - an...

    Your unit should've come with two manuals - an installation manual for your contractor and an owner's manual for you. Sometimes the factory forgets to put them in, but if that's the case the manuals...
  48. If you have multiple return grilles feeding the...

    If you have multiple return grilles feeding the unit then it's better to use a filter at the air handler. The problem with 1" filter slots is that you're only going to be able to do so much...
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    These are inexpensive and help everyone out:...

    These are inexpensive and help everyone out:
    http://www.diversitech.com/Product?id=01t80000002s6ORAAY

    Also, if you don't know what refrigerant is in it:...
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    http://www.diversitech.com/Product?id=01tC00000045...

    http://www.diversitech.com/Product?id=01tC00000045MOMIA2
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