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  1. Replies
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    Yup - I see a couple a year. I carry a universal...

    Yup - I see a couple a year. I carry a universal pressure switch so I can replace it on the spot and get the heat back on. I've seen old stuck switches, poor/hi resistance contacts, cracked...
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    539

    This applies to a lot of commercial, too. For...

    This applies to a lot of commercial, too. For the managers, it's not their money, but it is often their year end bonus at stake. For owners it is their money. You've got to be the professional and...
  3. Replies
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    1,643

    Most common would have to be my Crescent Hammer,...

    Most common would have to be my Crescent Hammer, Screw-Pry, and Georgia Boot Panel Alignment tool. The 16-3 Extension Rope comes in handy sometimes, too.
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    "Well, nobody's called me to fix the heat yet...

    "Well, nobody's called me to fix the heat yet because you're too stupid to stop coming here..."
  5. If I had to guess, the JB has the same size...

    If I had to guess, the JB has the same size reservoir with a bigger pump "cartridge" in the 7cfm, displacing more oil, therefore reducing it's capacity...
  6. Open forum. But... dip-switch.

    Open forum. But... dip-switch.
  7. Replies
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    2,099

    Same here - I've never needed to replace one...

    Same here - I've never needed to replace one unless it was specified in a maintenance (Nieco flame broiler at a certain "gourmet" hamburger establishment). Clean out with torch tip cleaners and...
  8. Replies
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    178

    That delay is very common on newer equipment. ...

    That delay is very common on newer equipment. Some manufacturers give a fancy name like "quiet shift" or the like. The scroll compressor in your heat pump has a tendency to hammer very loudly when...
  9. Replies
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    728

    2000. Why are you getting gasses from a parts...

    2000. Why are you getting gasses from a parts house?? Go to a welding supply. We use Oxarc for oxy, acetyline, nitro, and co2.
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    528

    For a crack I can see that, especially if you...

    For a crack I can see that, especially if you don't eliminate the stress on it. This was a hole burned into the copper.
  11. Replies
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    528

    Fill. Then replace the drier. Don't make it...

    Fill. Then replace the drier. Don't make it harder than it needs to be.
  12. Replies
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    311

    The control pictured is for the humidifier. The...

    The control pictured is for the humidifier. The control at your thermostat is to dehumidify in summer using the air conditioner. The chart on the humidistat is suggested to prevent condensation...
  13. Again - this is because the schedule is...

    Again - this is because the schedule is programmed to have fan "on." Read my previous post again, then re-program your schedules to fan "auto."
  14. Check your schedule. The 8000 (I assume you are...

    Check your schedule. The 8000 (I assume you are referring to the older green back-lit thermostat) allows you to set the fan to auto or on during the different scheduling periods...
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    406

    Higher temp = more energy = more money...

    Higher temp = more energy = more money...
  16. Replies
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    3,304

    That's the "Nintendo" repair. Be sure to blow on...

    That's the "Nintendo" repair. Be sure to blow on the chip for good measure... Some Fireye gas controllers are like that, too.
  17. Thread: Pro

    by cjpwalker
    Replies
    2
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    204

    http://hvac-talk.com/vbb/showthread.php?116113-How...

    http://hvac-talk.com/vbb/showthread.php?116113-How-to-apply-for-Professional-Membership
  18. Replies
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    3,239

    1/4 inch or 5/16??

    1/4 inch or 5/16??
  19. Replies
    46
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    3,239

    Craftsman Nextec 12v right angle impact. What...

    Craftsman Nextec 12v right angle impact. What can I say - got it for my birthday 3 years ago, and is in the top three of my most used tools along with my meter and my 6-in-one. It has never skipped...
  20. Replies
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    453

    Carrier adds this as a safety - if it sees a heat...

    Carrier adds this as a safety - if it sees a heat call upon startup it assumes the power went out during a heat call and runs the blower for 30 seconds to cool the HX before restarting.
  21. Replies
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    409

    Yes. Most of us are familiar with John Mills'...

    Yes. Most of us are familiar with John Mills' hard work and research putting this list together and maintaining it. I think you are supposed to get permission before re-printing it.
    ...
  22. Replies
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    453

    It is very possibly how the thermostat is...

    It is very possibly how the thermostat is configured, so that it will send a call for fan along with the heat call.
  23. Replies
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    545

    ...or it's that they are like underwear - pull...

    ...or it's that they are like underwear - pull 'em off, flip 'em around and you're good for another day! :whistle:
  24. Replies
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    545

    Did you ever have a flashlight with weak...

    Did you ever have a flashlight with weak batteries. I mean a real flashlight, non-LED. It would flicker or go out, you would beat the hell out of it and it would work again...
  25. Replies
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    2,028

    I'll say this - it comes in handy! I had a flat...

    I'll say this - it comes in handy! I had a flat in the middle of BFE the other day. After putting the spare on the service van in the snow I found it had about 20psi in it (of air). I don't have...
  26. Replies
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    1,121

    Another thing I have seen more than once is the...

    Another thing I have seen more than once is the pipe exiting the trap assy. will be mistakenly piped to the cleanout at the bottom instead of the actual outlet.

    531611
  27. Replies
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    1,121

    Did you check the other things I mentioned? ...

    Did you check the other things I mentioned?

    What has been your fix when it's shut down - are you pulling the inducer and draining it manually? Is there any standing water in the collector at that...
  28. Replies
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    1,121

    Here's one we did a few weeks back where we had...

    Here's one we did a few weeks back where we had to remote the trap assembly. It is also very common on horizontal installations.

    531521
  29. Replies
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    1,121

    No. The collector box is not trapped internally...

    No. The collector box is not trapped internally on lennox equipment. UPG (York, Coleman, Luxaire) does that.
  30. Replies
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    1,121

    The trap is permitted to be remoted away from the...

    The trap is permitted to be remoted away from the furnace - up to 5 feet. Make sure that the line from the furnace to the trap is pitched away from the furnace with no sags forming a double-trap. ...
  31. Thread: Picking a CA

    by cjpwalker
    Replies
    14
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    783

    I just purchased a UEI Smart Bell Plus. It's...

    I just purchased a UEI Smart Bell Plus. It's definitely a "starter" model (the screen displays only one measurement at a time, it doesn't print or communicate to a printer, and it doesn't measure...
  32. Replies
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    1,045

    The cool thing about VRV is, unlike a VAV system...

    The cool thing about VRV is, unlike a VAV system where you are making a constant supply temp and then re-heating at each box, or on a hot-deck/cold-deck setup where you're burning the candle at both...
  33. Replies
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    964

    With the icomfort installed all of the dip...

    With the icomfort installed all of the dip switches will be ignored. The thermostat takes control of the system and all settings take place there.

    It is really designed for factory trained techs...
  34. Replies
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    I guess the other thing to consider is real world...

    I guess the other thing to consider is real world experience. I've had service calls in the past with complaints of power bills doubling, arriving to find out that the heat pump has been dead for a...
  35. Replies
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    Here is an example with Lennox equipment (that is...

    Here is an example with Lennox equipment (that is what I have access to).

    Per the "ACCA Manual S Capacity Calculator" on Lennox's Davenet dealer website, a 3-ton 13 seer heatpump system consisting...
  36. Replies
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    We were just subbed to install an engineered...

    We were just subbed to install an engineered system like this - a Cold Zone unit. Five circuits/compressors run the entire restaurant, with 5 or six lowboys - reach-ins and drawers - all on one ...
  37. Replies
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    Glad to hear that you are all fixed up. ...

    Glad to hear that you are all fixed up.

    Sorry - i missed your additional questions the other day.

    Your AC will no communicate directly with the iComfort as it uses conventional control...
  38. Replies
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    3,245

    No. "High pressure moves to low pressure. ...

    No.

    "High pressure moves to low pressure. Always" -Dan Holohan

    In the gas burner example where the gas flow causes a venturi effect and pulls the air into the burner: no air pulls back into...
  39. Replies
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    412

    Where is the outdoor sensor and what does the...

    Where is the outdoor sensor and what does the outdoor temp display say when it clicks over too early?
  40. Replies
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    1,492

    Nice collection. We don't do a whole lot of PTAC...

    Nice collection. We don't do a whole lot of PTAC work, but we have a couple of accounts. Mostly just dirty - pull, take apart, and wash coils... One office still has five of their original GE...
  41. Replies
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    964

    What is the full model number of your furnace? ...

    What is the full model number of your furnace? If the last two digits are -03 or higher please ask your Lennox dealer about upgrading to the iComfort Wifi thermostat.

    Your G71 is Lennox's first...
  42. Replies
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    915

    x2 for Dan Holohan. I sought out a couple of his...

    x2 for Dan Holohan. I sought out a couple of his books this summer because I wanted to learn more about hydronic and steam. We have a little of one, and I don't think any of the latter, but I want...
  43. Replies
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    701

    Oh, and they're not worth a damn in the car due...

    Oh, and they're not worth a damn in the car due to the UV coating on your windshield.
  44. Replies
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    701

    I didn't care for them - they take too long to...

    I didn't care for them - they take too long to lighten up. If your on a white roof and stick your head into the control panel they'll end up on your head and you will be squinting. Also, as they...
  45. It's the last one you'll ever need! Order in the...

    It's the last one you'll ever need! Order in the next 10 minutes and we'll send you TWO!
  46. 1.21 jiggawatts!

    1.21 jiggawatts!
  47. Replies
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    775

    The mark doesn't indicate a positive or negative...

    The mark doesn't indicate a positive or negative side of the capacitor. It shows which terminal is adjacent to the case indicating which terminal would likely short to ground if the capacitor...
  48. Replies
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    1,616

    Nope. Neither of those roofs are 40 years old,...

    Nope. Neither of those roofs are 40 years old, and I'd bet you couldn't touch that POS let alone roof under it without the whole thing falling apart.
  49. Replies
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  50. Modern induced draft furnaces do have more moving...

    Modern induced draft furnaces do have more moving parts and thus make more noise - especially at startup - than the old natural draft units. It is necessary for today's more efficient equipment to...
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