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  1. One Possible Reason

    Circuit boards can develop intermittent connections at the solder joints. It's not anything you can see with your eyes. Nor can you prevent it. If it's going to happen, it's going to happen. When it...
  2. California requires a license. The citizens...

    California requires a license. The citizens therein would be better off if it didn't. The term "licensed contractor" implies some level of competence. Nothing could be further from the truth, at...
  3. Got it. Thanks rundawg! It's much appreciated. ...

    Got it. Thanks rundawg! It's much appreciated.

    I had forgotten there was a closed area. This place has a lot of forums.
  4. Need Literature on York's Modulating Gas Valves - Please!

    I think they used to operate by PWM. Now they operate by varying the voltage? I dunno. I'd love a link to appropriate troubleshooting related reading if you have one.

    I have to admit I'm not up to...
  5. If you're giving them the option to perform a...

    If you're giving them the option to perform a real refrigerant leak repair, you're doing more than most of the contractors in my area. The locals I regularly follow behind (that is to say, clean up...
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    I started with a printer on the van using...

    I started with a printer on the van using something akin to Quickbooks. I got tired of the bad ergonomics of typing in the field, not to mention the rate at which I had to replace the mobile printer....
  7. Besides blown capacitors, which is a gimme, low...

    Besides blown capacitors, which is a gimme, low refrigerant due to leaks is my number one summertime issue.

    That's because (it seems as though) the vast majority of local contractors either "gas...
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    It seems like you're putting the cart before the...

    It seems like you're putting the cart before the horse Canyonero. It appears that you want to replace a compressor without knowing why it's loud. It may simply be overcharged. I came across a couple...
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    "Trane don't need no stinking wax." I assume...

    "Trane don't need no stinking wax."

    I assume that's what a Trane guy would say. They are a proud bunch. ;) But seriously, someone recommends waxing?!

    From what I read in your other threads...
  10. I hate to kick a guy when he's down, but the...

    I hate to kick a guy when he's down, but the others are right mulmurhouse. It appears that the installing contractor focused on selling a box rather than providing service.

    You expressed concern...
  11. I read rider77's link for the first time ever...

    I read rider77's link for the first time ever moments ago. I expected it to be a worthless puff piece. That's no comment on rider, especially since I don't know him. I just don't expect anything good...
  12. If you find a company that fits the bill...

    If you find a company that fits the bill WoodHeated, let me know who it is. I'd like to be able to refer someone in your area, I just can't find anyone to recommend.

    As for Dan's load calc, I...
  13. Ah... Now why didn't I think about that?...

    Ah... Now why didn't I think about that? Irregular voltage spikes or dips could easily cause that. For some reason I had my brain stuck on the mechanical side of things.

    Thank you everyone for...
  14. Well... It's not quite the answer I was...

    Well... It's not quite the answer I was expecting, but so far it's the only answer I got. I'll investigate the tiny welder man theory. ;)
  15. Any idea what this compressor noise (momentary oscillations) is?

    This recording is of a 16 year old 4 ton Trane condenser with a scroll compressor. It was low on refrigerant. The recording was taken after it was charged. I didn't notice the noise prior to...
  16. I hope you're right 'cause I'm about to order it....

    I hope you're right 'cause I'm about to order it. Thanks!
  17. Adapter to Access Automotive Refrigerant?

    I rarely do medium temp, so I don't wish to buy a 30 pound tank of 134A. The 12 ounce can at Autozone is perfect for the little refrigerator I'm working on. The automotive hose they sell is not...
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    Daniel is on point. I don't think it's worth the...

    Daniel is on point. I don't think it's worth the extra investment unless you are going to be there for quite some time. I'm speaking strictly in terms of ROI. Intangibles such as environmental...
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  20. There is a decent chance the system is oversized...

    There is a decent chance the system is oversized for the home, hence the noise. It's a little late to do anything about that.

    Generally speaking it's a bad idea to lower the fan's speed. Not only...
  21. What's the difference between Carrier's current gen replacement inducer motors?

    The kit numbers are 326628-760 through 326628-765. You can view the installation instructions here.

    In terms of physical dimensions, I think they're all the same. Perhaps the wheel is different on...
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    The ducts' sizes are not actually relevant to the...

    The ducts' sizes are not actually relevant to the pressurization issue you're dealing with. Your supply vents could each be 20 inches in diameter. They can still only supply as much air to the...
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    The supply ducts can only supply the air that the...

    The supply ducts can only supply the air that the air handler draws in. You report that your basement pressure is positive. Therefore the air handler must be drawing air from some place other than...
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    Entitled much? I spent fifteen minutes last night...

    Entitled much? I spent fifteen minutes last night looking up data on a two-stage Carrier product and posting the precise results for your viewing pleasure. That buys me dinner at the hourly rate that...
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    You're fine Limey. I'm just being conservative....

    You're fine Limey. I'm just being conservative. And yes, if the air handler has two breakers then one is probably for the heat strips only. The unit outside has its own breaker as well.
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    Rama kinda sorta said... "My surgeon is a...

    Rama kinda sorta said...

    "My surgeon is a quack who believes in bloodletting and phrenology, but my surgery is already scheduled and I'm a little tight on time. Can you please tell me how my...
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    As you know, the forum prohibits DIY questions. I...

    As you know, the forum prohibits DIY questions. I don't know how close I'm getting to that line. If you can't figure out whether your air handler has one or two breakers, it's probably best for me to...
  28. Thanks Smoke. I should be more specific. Years...

    Thanks Smoke. I should be more specific.

    Years ago I read that adaptive recovery mode determines how far in advance it cycles on (and off and on and on and off - which is why some customers...
  29. I have a quick question myself for those that may...

    I have a quick question myself for those that may know: Does the thermostat's adaptive recovery (or whatever they're calling it these days) alter the CPH during recovery? It may not be altering CPH...
  30. Replies
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    You are correct. An air conditioner moves heat...

    You are correct. An air conditioner moves heat from inside to outside. A heat pump is an air conditioner with a reversing valve (and other stuff) that reverses the flow of refrigerant, thereby moving...
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    As suggested, a 2 stage 45K furnace locked in...

    As suggested, a 2 stage 45K furnace locked in first stage is the way to go in my opinion. The Carrier/Bryant/Tempstar/Payne/Day&Night 80% AFUE version thereof (which is actually 44K BTUH input) will...
  32. The correct thing to do is get a real diagnosis....

    The correct thing to do is get a real diagnosis. "Bad shape" doesn't mean anything. Imagine going to the doctor for knee pain and his professional diagnosis is "bad shape". You can do that by hiring...
  33. Realmsteel: What I believe has changed is the...

    Realmsteel: What I believe has changed is the pan's seal to the chassis that it sits under. The water level in the pan is normal.

    Dennis: You were working on a similar First Company air handler?
  34. Doesn't make sense: Air leak causes water to overflow ceiling AH.(pics & vid inside)

    I've never seen this before. Now I've seen it twice in a month. The video is something I did for the landlord of the first unit I saw. The pictures are from the second. Both are First Company air...
  35. Tim: Thanks very much. That's good knowledge,...

    Tim:

    Thanks very much. That's good knowledge, of which I understand partially. I doubt my meter can read a change in duty cycle. It can read frequency, so I'll check that next time.

    Anyone:
    ...
  36. Well... Now that you say that, maybe not. Thanks...

    Well... Now that you say that, maybe not. Thanks for planting uncertainty. (j/k ;))

    I'll be going back in a week or two. I'll check again. If I don't read a voltage drop I'll take a picture or...
  37. How does the ICM3XX head pressure control reduce fan speed?

    I assumed it did so by lowering the voltage. However, after installing this one I see that the input and output voltage are the same even when the condenser fan is running slow.

    The next thought...
  38. Thank you for the feedback gents.

    Thank you for the feedback gents.
  39. Thank you Sic! The point of this thread is to, if...

    Thank you Sic! The point of this thread is to, if possible, avoid compressor removal. :) Maybe it's a crazy thought, but I won't know till I try.
  40. I've performed a lot of searches on this forum...

    I've performed a lot of searches on this forum and on the net in general. It appears that, for high temp at least, R-438A is the best no oil change choice and R-407C is the best "some oil change...
  41. It's not to sample. It's to convert to from R-22...

    It's not to sample. It's to convert to from R-22 to R-407C.

    I don't know if this is widely accepted, but it's what I'm going with: The gentleman that put this class on states that we need only a...
  42. Quickest way to extract *some* oil from a compressor that's not being replaced?

    My thought is to cut the suction line and use an automotive style extractor.

    Thoughts on that idea? Better ideas?

    I think it might work well on a recip. I'm not as certain about scrolls.
  43. I realize it's not necessarily popular, but...

    I realize it's not necessarily popular, but soldering with Stay-Bright 8 will keep it a lot cooler. By the time I've finished soldering a typical joint, the liquid soap has only started to boil.
    ...
  44. deleted (Don't have the * next to my name! :))

    deleted

    (Don't have the * next to my name! :))
  45. Thread: UV Lights

    by Irascible
    Replies
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    52,088

    In reply to the preceding post: Sterilizing...

    In reply to the preceding post:

    Sterilizing the coil might be needed in humid climates. It’s certainly not needed here (a dry climate) in a typical residential application. Regardless of the...
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    Min and max settings are useful, but it's the...

    Min and max settings are useful, but it's the program that I need to lockout.

    I'll read up on those suggestions and others that may come. I appreciate the help.
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    Best option for t-stat with lockout?

    I have a customer that wants to lockout the program, leaving occupants with only the ability to temporarily change the setting - a fairly common request I think.

    I liked the Totaline thermostats...
  48. Thread: UV Lights

    by Irascible
    Replies
    66
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    52,088

    Let me rephrase that old post by saying that it's...

    Let me rephrase that old post by saying that it's about a fifth of a second of exposure, depending. You're not going to sterilize much of anything in a fifth of a second.
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    More details? An X SEER condenser with a recip...

    More details? An X SEER condenser with a recip and an X SEER condenser with a scroll is still X SEER. Or are we talking about some other measure?

    That's not to imply I would choose recip if I...
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    Stating the obvious here: A referral isn't fool...

    Stating the obvious here: A referral isn't fool proof, but it's 200% better than calling Joe Schmoe out of the phone book. :)
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