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  1. It broke. Idea/suggestion - call for service....

    It broke.
    Idea/suggestion - call for service. Site rules prohibit giving DIY advice.
  2. Replies
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    393

    Why are you using a contractor you donít trust?...

    Why are you using a contractor you donít trust? Get a contractor you DO trust.
  3. Replies
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    568

    I don't want every customer. If I have to explain...

    I don't want every customer. If I have to explain every step of the process in every repair I'd get less work done.
    Those who critique every charge get quoted a higher price for my trouble.
  4. Thread: PTAC argument

    by kdean1
    Replies
    18
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    389

    It is only traditional in an up-flow...

    It is only traditional in an up-flow configuration. It is completely wrong to do so for a down-flow.
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    49,925

    Publicly declaring that you’re a hack is not the...

    Publicly declaring that you’re a hack is not the best way to introduce yourself on a site for professionals.
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    594

    Was your old system the same size, or even...

    Was your old system the same size, or even smaller? Was a Manual J load calculation performed to determine what size is actually needed? Equipment which is too big will not dehumidify because it does...
  7. Thread: Pet Peeves

    by kdean1
    Replies
    157
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    2,750

    Adding one I haven't seen mentioned yet - many...

    Adding one I haven't seen mentioned yet - many people state the subject and then add a pronoun. Examples - The judge, he rendered a verdict. Or, congress they considered a bill. Or my wife she went...
  8. A larger dehumidifier will not be a bad thing....

    A larger dehumidifier will not be a bad thing. The Ultra-Aire units are built in the U.S.
    Honeywell now manufacturers theirs overseas.
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    151

    HVAC installation requires expensive, specialized...

    HVAC installation requires expensive, specialized tools, especially for ductless units. The seller would have you believe it is simple, but the many times I have been called to fix a DIY installation...
  10. I have experienced problems with Nest even with a...

    I have experienced problems with Nest even with a common wire. Don’t bother with a Nest professional. Just install a Honeywell and the problem will disappear.
  11. Thread: Loud Blower Fan

    by kdean1
    Replies
    8
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    245

    Did you “upgrade” the furnace to a larger one?...

    Did you “upgrade” the furnace to a larger one? I’ll wager it is too big.
  12. Replace the nest thermostat and see if the...

    Replace the nest thermostat and see if the problem goes away.
  13. Nest thermostats have been known to cause weird...

    Nest thermostats have been known to cause weird behavior. If you’re using a Nest I recommend anything else.
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    426

    That's very true. There are some members here...

    That's very true. There are some members here whose experience astounds me. Their posts reveal their knowledge in short order. I try read their posts thoroughly.
  15. We installed some Heat Controller condensers this...

    We installed some Heat Controller condensers this year for some apartments. The 1 & 1.5 ton units use 1/4 liquid line but I see 2 ton unit specifies 3/8" line. Models CMA18-SD

    My ICP distributor...
  16. Thread: Noisy supply

    by kdean1
    Replies
    17
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    618

    But his answer is correct.

    But his answer is correct.
  17. Thread: Pet Peeves

    by kdean1
    Replies
    157
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    2,750

    So here's mine. :whistle: I've noticed many...

    So here's mine. :whistle: I've noticed many posts here begin with "so."

    Irregardless - (not a word)
    Absolutely when "yes" is all that's needed.
    Driving without using turn signals.
    Boots on...
  18. Thread: Noisy supply

    by kdean1
    Replies
    17
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    618

    See post #6.

    See post #6.
  19. I didn’t know furnaces had a heat pump mode.

    I didn’t know furnaces had a heat pump mode.
  20. Replies
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    486

    Amperage must be measured with the door on as...

    Amperage must be measured with the door on as that is the way the unit will be used.
  21. Replies
    13
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    486

    You really need tools to measure air flow....

    You really need tools to measure air flow. Looking at motors and ducts cannot assess air flow.
    The Testo 510 is an inexpensive manometer. Once you start measuring static pressure and can read a...
  22. Replies
    45
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    1,702

    I don't remember if I read it (maybe on HVA-talk)...

    I don't remember if I read it (maybe on HVA-talk) or heard it on HVAC School podcast, but the current information is that fractionation is a non-issue for R410-A.
    In 2010 there were all kinds of...
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    28,236

    It's great that you're learning but PLEASE don't...

    It's great that you're learning but PLEASE don't resurrect a thread from 2013!
  24. Replies
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    1,702

    That information is about 10 years old and out of...

    That information is about 10 years old and out of date. R410-A is a near azeotropic blend rather than a true azeotropic blend. Information in the last few years is that R410-A does not fractionate as...
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    137

    After 16 years I recommend a new unit.

    After 16 years I recommend a new unit.
  26. I insist No Nest for our equipment. Too many...

    I insist No Nest for our equipment. Too many problems.
  27. Replies
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    253

    Get rid of the Nest. They are unreliable. Iíve...

    Get rid of the Nest. They are unreliable. Iíve experienced intermittent behavior on systems with Nest. Replacing the Nest eliminated the problem.
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    408

    High efficiency equipment does not remedy...

    High efficiency equipment does not remedy undersized ducts. The equipment manufacturer specifies static pressure for the equipment. It is up to the installing contractor to ensure proper ducting.
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    1,497

    Don’t accept a bid based on the size of the old...

    Don’t accept a bid based on the size of the old unit. Insist on a load calculation.
  30. Whatever Carrier says will work. Any thermostat...

    Whatever Carrier says will work. Any thermostat will provide basic cooling operation.
  31. Replies
    6
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    380

    What does Fujitsu tech support say?

    What does Fujitsu tech support say?
  32. We recommend getting a local contractor to fix it.

    We recommend getting a local contractor to fix it.
  33. Good idea. My doctor likes it when I bring my own...

    Good idea. My doctor likes it when I bring my own stethoscope and scalpel.
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    271

    Measure the draft and ensure proper combustion...

    Measure the draft and ensure proper combustion air.
  35. In answer to your statement, No. Site rules...

    In answer to your statement, No. Site rules prohibit giving advice for DIY.
  36. Replies
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    330

    Have it looked at by a tech? Site rules...

    Have it looked at by a tech?

    Site rules prohibit giving DIY advice.
  37. Replies
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    256

    A load calculation is for the whole house. Zoning...

    A load calculation is for the whole house. Zoning has to do with the duct system which is an altogether separate issue. But the ducting is even more critical when zoned. If only one zone is open, the...
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    1,290

    You’re the exception to the rule. :grin2:

    You’re the exception to the rule. :grin2:
  39. Replies
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    220

    Mitsubishi Hyper Heat has 100% heating capacity...

    Mitsubishi Hyper Heat has 100% heating capacity down to 5*. 80% capacity at -13*. Easy decision.
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    624

    Please have your post moved from AOP to the tech...

    Please have your post moved from AOP to the tech to tech forum.
  41. Replies
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    1,290

    The best you can hope for from the big box store...

    The best you can hope for from the big box store is a competent hack.
  42. I’m sorry to tell you that you need a different...

    I’m sorry to tell you that you need a different contractor. It’s not that hard to leak test a system. Perhaps you need a contractor to take the joints apart and remake the flares. I have had to do...
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    245

    Oh yeah. Your HW company has replaced part after...

    Oh yeah. Your HW company has replaced part after part, you've been without cooling for months, spent hours chasing the HW company, trying to find someone on a professional site to sympathize with you...
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    It is up to us as knowledgeable professionals to...

    It is up to us as knowledgeable professionals to educate customers.
    Selling an oversized air conditioner and installing it on an undersized duct system is done regularly by contractors...
  45. Ditto. And there’s the benefit of small...

    Ditto. And there’s the benefit of small footprint. We put some in an apartment this year. It’s too early to comment on performance or reliability.
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    1,464

    But there are instances where the circuit is in...

    But there are instances where the circuit is in the correct apartment and the low voltage wires go to a different apartment. That’s a nightmare to resolve as you have to go to multiple apartments to...
  47. Thread: My Unit

    by kdean1
    Replies
    12
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    402

    Your post belongs in the ask our pros forum as...

    Your post belongs in the ask our pros forum as you are Asking Our Pros or in Tech to Tech if you present your credentials.
  48. Replies
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    1,293

    Seriously? A Johnny Cash video “One Piece at a...

    Seriously? A Johnny Cash video “One Piece at a Time”

    I hope my label will save others the trouble of clicking the link.

    Are you suggesting that’s a good way to replace a heat pump? I don’t know...
  49. Replies
    3
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    257

    Your contractor did it wrong. Ductless systems...

    Your contractor did it wrong. Ductless systems are not charged by adding refrigerant to achieve a given pressure. The ONLY way is to remove all refrigerant and weigh in the proper charge. Only after...
  50. Old houses had ducts designed only for heat. The...

    Old houses had ducts designed only for heat. The second floor did not need as much heat as the first floor so the ducts were smaller or fewer than the ones for the first floor.
    The second floor has...
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