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  1. Replies
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    some are motorized actuators. They use 120 volt...

    some are motorized actuators. They use 120 volt to open and spring closed. Others are accordion style with a lead link keeping them open. I suppose you would only verify that they are all open. The...
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    x2 much better than ceiling fans or the most...

    x2
    much better than ceiling fans
    or the most efficient is the Cambridge "S" series
    look here
    http://www.cambridge-eng.com/products/s_series.asp
  3. Replies
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    3,194

    I'd show you my impact driver, but I'd have to...

    I'd show you my impact driver, but I'd have to unzip my fly 1st
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    1,260

    let's say for example that your furnace is 21"...

    let's say for example that your furnace is 21" wide, but the coil sitting up on top is only 12" wide sitting inside a sheetmetal plenum (really for a 14" wide furnace). Then a sheetmetal plate is...
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    756

    some of the predators still using obsolete...

    some of the predators still using obsolete honeywell logic modules, but now using belimo actuators
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    284

    is the thermostat designed for electric heat? If...

    is the thermostat designed for electric heat? If it is it will have a gas/electric switch probably on the back or in setup need to change to electric heat and fan on in heat
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    317

    More than likely you have your thermostat setup...

    More than likely you have your thermostat setup for heat pump. This needs to be changed to conventional
  8. leaking seals or doors

    leaking seals or doors
  9. most carrier's limit switch kills 24v power to...

    most carrier's limit switch kills 24v power to the board. Get your post count up and apply for pro status for more info
  10. 2 things. One replace the liquid line filter...

    2 things. One replace the liquid line filter dryer with a new one, don't replace with a piece of copper. Two in post #1 you said charge appeared low, you added 4.5 kg of r-22 and later recovered 5.5...
  11. uh not in Minnesota. Full referral here. we...

    uh not in Minnesota. Full referral here. we always have enough. If not we bring in travelers
  12. Replies
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    1,431

    new one on me. Since we're in the pro's forum...

    new one on me. Since we're in the pro's forum mind elaborating
  13. sorry you apparently didn't read the rules NO...

    sorry you apparently didn't read the rules

    NO DIY
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    574

    are you a tech??? change the gauges out

    are you a tech???
    change the gauges out
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    893

    they are nicknamed Honeywell dumb valves for a...

    they are nicknamed Honeywell dumb valves for a reason
  16. Replies
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    not legally. I've seen it done, but it's a big no...

    not legally. I've seen it done, but it's a big no no
  17. what that means when you set 200 to fossil fuel...

    what that means when you set 200 to fossil fuel except as mentioned above about defrost they will only run one or the other, not both. Lets say it's 43 outside a call for heat will start the heat...
  18. Replies
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    1,098

    screw R-134A it won't pull down below 0 degrees...

    screw R-134A it won't pull down below 0 degrees and depending on ambient (at higher ambient temperatures R-134A looses capacity compared to R-12 & R401B).
    R401B or MP66 is your best option and still...
  19. they have 10 different tests that I know of. I...

    they have 10 different tests that I know of. I passed, but don't remember the questions. either you know it or you don't. I think there were a few questions on rack systems
  20. Replies
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    6,953

    my favorite tool swings between my legs

    my favorite tool swings between my legs
  21. A CAPT 4961 is a very large coil. Probably larger...

    A CAPT 4961 is a very large coil. Probably larger than your original coil. Larger = less restriction. You didn't loose BTU's anywhere, now just have less restriction & more flow which is a good thing
  22. also older units like Lennox for example actually...

    also older units like Lennox for example actually have the heat exchanger before the evaporator coil. unlike most today blowing cold air from the coil all summer long with moisture condensing on the...
  23. x2

    x2
  24. your furnace is a 60,000 BTU input. 49,200 is the...

    your furnace is a 60,000 BTU input. 49,200 is the output=81% efficient. They need to do load calculations especially since more than likely your current furnace is over sized as was the norm back in...
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    1,499

    unlikely and he has plenty of time it's his own...

    unlikely and he has plenty of time it's his own freezer!!!
  26. Replies
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    1,499

    or charge the old fashion way. By using the frost...

    or charge the old fashion way. By using the frost line method. If suction line is frosting slowly a little bit at a time remove some refrigerant until frost drops to just inside the box as the...
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    694

    no that's OK the supplies are closed on the zones...

    no that's OK the supplies are closed on the zones that are not calling, the returns being open are irrelevant. Does the system have a bypass damper and duct?
  28. Replies
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    1,226

    X2 or merv 7, but if you still have high...

    X2
    or merv 7, but if you still have high temperature rise make sure any dampers (if they are present on ducting) are open and all registers (supply & return) aren't closed. As a last resort switch...
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    deleted

    deleted
  30. you are wrong on that one unless you're talking...

    you are wrong on that one unless you're talking about a 90% or higher condensing furnace. Modern 80% furnaces put out higher stack temperatures than the older 75-80% ones, because the older ones had...
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    444

    eliminate the time delay!

    eliminate the time delay!
  32. Replies
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    869

    I would see if the humidifier can be relocated to...

    I would see if the humidifier can be relocated to the supply line. Pretty ineffective on the return
  33. I'm in Minnesota (zone 5) ditch the 16 seer. Not...

    I'm in Minnesota (zone 5) ditch the 16 seer. Not anymore comfortable than 13 seer and your cooling season is too short and the payback is probably 20-30 years or more. Sounds like your evaporator...
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    oh and by the way if you bought the furnace on...

    oh and by the way if you bought the furnace on the internet then there's usually no warranty as most manufacturers have that posted on their websites
  35. Replies
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    strip heaters running

    strip heaters running
  36. Replies
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    487

    yea make pictures larger

    yea make pictures larger
  37. Replies
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    although the higher efficiency would be a good...

    although the higher efficiency would be a good option for your area, you'll realize greater savings by sealing and insulating the house. Who said you're old furnace is undersized (the service tech?)...
  38. Replies
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    hello It's a ductless split condenser. yeah it...

    hello It's a ductless split condenser. yeah it could warm the room up, but you literately could sleep right next to it and get a good nights sleep as it's so quiet
  39. Replies
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    woooh don't necessarily jump to conclusions. Yes...

    woooh
    don't necessarily jump to conclusions. Yes it could be an unscrupulous contractor, but then again could have just been a piece of insulation that came loose from the air handler/furnace. Your...
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    yea forgot about those

    yea forgot about those
  41. Thread: Hilmor

    by superfittertech
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    1,675

    can't swage hard copper as it will crack only use...

    can't swage hard copper as it will crack only use on soft copper
  42. Replies
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    that's not the big boy. The big boy is the...

    that's not the big boy. The big boy is the Milwaukee spline. Will make holes up to 2" even in the hardest concrete
  43. Replies
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    subcooling only matters if a txv is installed and...

    subcooling only matters if a txv is installed and there is no receiver. (usually don't see it in refrigeration)
    although shortly some nay Sayers who'll tell me that's not right
  44. as far as WiFi is concerned All Mitsubishi...

    as far as WiFi is concerned All Mitsubishi "Hyperheat" unit systems are RedLink™ enabled for MHK1 Wireless Remote Controller kit. If they're RedLink (Honeywell wireless) usually you can add a gateway...
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    any modcon boiler will save money over the oil...

    any modcon boiler will save money over the oil boiler. No need to change out piping. Pipe primary/secondary, install spirovent and a diaphragm tank. & be sure to install outdoor sensor for reset. The...
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    without seeing it, I'd say lazy contractor. Call...

    without seeing it, I'd say lazy contractor. Call someone else. 2nd opinion needed
  47. Replies
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    only on 3 ton and above and on high end units

    only on 3 ton and above and on high end units
  48. Replies
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    814

    Goodman has all aluminum coils and I think...

    Goodman has all aluminum coils and I think Nordyne has all aluminum microchannel coils
  49. Replies
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    2,250

    try washing the indoor coils with a solution of...

    try washing the indoor coils with a solution of water and automatic dish washing detergent. Sometimes the manufacturing process leaves residual oil on the aluminum fins and since it's slick fan blows...
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    if you can diagnose and find a place open on a...

    if you can diagnose and find a place open on a Sunday then have at it. That's why it's called EMERGENCY service. Tech is paid overtime or double-time + gas and insurance. It all adds up
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