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  1. Let it go, they did a 900% better job than what I...

    Let it go, they did a 900% better job than what I normally see in the residential industry. You can get a bit of loss from the gauge connection. Like others said, the vacuum is a secondary form of...
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    Both

    Both
  3. Overnight pressure tests usually result in around...

    Overnight pressure tests usually result in around 2-20psig pressure drop because it's cooler in the morning. Example if it's 90° when pressurized, and 70° when you check in the morning you'll have...
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    I don't think it's the velocity or the resistance...

    I don't think it's the velocity or the resistance at that particular point that's the issue. The issue is the turbulence it creates downstream. There's actually studies showing segmented 90° bends...
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    Yeah, back to reality, I'll probably look at the...

    Yeah, back to reality, I'll probably look at the CPS Black Max lever benders. Are they any good?
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    Finally found drill powered deburring tool good...

    Finally found drill powered deburring tool good for copper!!!

    https://remstoolsusa.com/rems-113835-reg-10-54e-outer-inner-pipe-deburrer-for-drill-1-2-2-1-8/
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    My dream tubing bender.

    I had an idea to improve the garbage T style tubing benders that ripple the inside radius of the tubing. I've tried oil, but it just doesn't seem to work, maybe grease is better? I have the Hilmor...
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    Ok, I see they are $700 for the 3 jaw kit. The...

    Ok, I see they are $700 for the 3 jaw kit. The only issue I see is finding a good chamfering tool than can connect to a 1/2" drill.

    Edit: I guess Ridgid make a good one that outside reams and...
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    It's actually a killer deal. You buy $500 in...

    It's actually a killer deal. You buy $500 in fittings, get a full jaw kit, and a $100 Visa gift card. They've had the promo going for a few months for the past couple years. Don't know if they've...
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    I would assume Lennox Complete Care has changed...

    I would assume Lennox Complete Care has changed over the years, I think it's called Comfort Shield now. Most of them are 3rd party insurance companies handling the Extended labor warranty. So,...
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    LOL, I was joking, but I was actually envisioning...

    LOL, I was joking, but I was actually envisioning a Frankenstein unit with it connected on the supply side making it a positive pressure cabinet. I seriously doubt it would fit inside the unit...
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    Could always just buy a cased coil for 1/2 the...

    Could always just buy a cased coil for 1/2 the price of a replacement coil.
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    Don't quote me on this, but I don't think the M12...

    Don't quote me on this, but I don't think the M12 does black iron fittings above 3/4". Also Zoomlock Max and RLS formerly known as Zoomlock are now 2 completely different fittings. Zoomlock Max...
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    LOL, it kills me how expensive replacement coils...

    LOL, it kills me how expensive replacement coils are for air handlers. You might as well just buy a new one and make it easy on yourself. I just looked it up, and I would pay almost as much for the...
  15. I can share the details in the pro section, but...

    I can share the details in the pro section, but not on the open forum. Neither the branch box nor outdoor unit can power more than 1 SVZ air handler, so an alternative power source must be used. ...
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    Most 2 stage units are upper level equipment for...

    Most 2 stage units are upper level equipment for most brands. This means they typically have a better fan blade and other such design options to help reduce noise. I'm a Trane, Bosch and Mitsubishi...
  17. I installed an MXZ multi with 2 SVZ's and 2 wall...

    I installed an MXZ multi with 2 SVZ's and 2 wall hungs with a 5 port branch box. It was approved on Diamond System Builder as well. So, far (after some adjustments) the homeowner is reporting...
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    Had this happen on a Goodman 90+ unit in a 1 year...

    Had this happen on a Goodman 90+ unit in a 1 year old home. I asked why they didn't have the installing contractor out to look at it. They said they couldn't get ahold of them. I check it and find...
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    Flush it, it will be fine. FWIW, you probably...

    Flush it, it will be fine. FWIW, you probably did the right thing by giving them the boot. That company is a joke, not worthy of being called hvac technicians. They are quite simply hacks.
  20. What was the aux winding current and voltage...

    What was the aux winding current and voltage across the capacitor when the fan was spinning in each direction? What was the resistance across each winding of the fan motor? Did you check the...
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    Why is this a question? Who said it wasn't...

    Why is this a question? Who said it wasn't grounded properly? What do you mean by "proper" grounding?

    Did you have just the compressor replaced or the whole outdoor unit?
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    Yeah, that's typically not in a company's best...

    Yeah, that's typically not in a company's best interest. Fixing screwed up installations can be a bag of worms that seasoned technicians know to stay away from.

    Your installing contractor needs...
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    Is there a space restriction that you need the...

    Is there a space restriction that you need the XV19 vs the XV18 or XV20i? IMO I would go for the 18 over the 19.

    The XC95m is the better furnace and it's fully communicating, the S9V2 is not. ...
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    $900 for a recovery machine? You can get a brand...

    $900 for a recovery machine? You can get a brand new Appion G5twin for $650 if you catch it on sale. What kind of $900 machine do you need for residential/ light commercial? Unless it's one of the...
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    The meter looks to have 15" to each side, it's...

    The meter looks to have 15" to each side, it's not 30" to each side or 60" total. The disconnect does not have to adhere to the same requirements as the panel box. It simply needs to be...
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    My big concern would be getting ahold of the high...

    My big concern would be getting ahold of the high SEER variable speed equipment. Last I checked they're all on backorder.
  27. You need to have a technician evaluate some...

    You need to have a technician evaluate some options. Finding where all of the wires go and exactly what they control is required before proceeding.
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    Why would you go with the XV19 when the XV18 is...

    Why would you go with the XV19 when the XV18 is better in every way, including price, more modulation and efficiency, with the exception it's not side discharge and maybe the db level is slightly...
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    Sorry for the loss. As for the tools, they...

    Sorry for the loss.

    As for the tools, they are probably worth $1k max if they are newer and have some useful life left in them, otherwise they're probably 1/2 that value.

    Unfortunately,...
  30. I don't quite understand why people want to...

    I don't quite understand why people want to complain on the internet and out a company with potentially wrong information without even contacting the company with their concerns?

    We don't know if...
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    I choose Trane. If I believed Lennox were...

    I choose Trane. If I believed Lennox were better, then I would be a Lennox dealer. While I have some complaints about Trane, all mfgs. have issues. None are perfect, but I'm still a Trane dealer...
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    I'm confused as to why the tech that tightened...

    I'm confused as to why the tech that tightened the txv couldn't perform a leak search. Am I missing something? Or did you just tell him we'll see if that holds for a while because the leak search...
  33. NEST is the only thermostat I find fails by...

    NEST is the only thermostat I find fails by randomly energizing half of the proper signals. Most other thermostats have better redundancy, meaning they either work or they don't. That's why NEST is...
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    For round duct traverse using a Pitot tube, use...

    For round duct traverse using a Pitot tube, use the log linear method, and take the measurements no less than 2-3 duct diameters down stream of the disturbance. The closer you get the more error is...
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    I've had one for several years, and it works...

    I've had one for several years, and it works great. If you are looking at doing larger piping than 1-1/4", or black iron then go with M18. My M12 kit came with 1/2"-1-1/4". The RLS jaws work fine...
  36. I'm extremely confused with this post. You need...

    I'm extremely confused with this post. You need to clarify what it is you're talking about. A blower capable of running "up to" 4 tons air flow is available in a 60Mbtuh furnace which is small to...
  37. How much difference is there? If your ducting is...

    How much difference is there? If your ducting is capable of handling 5 tons cooling you shouldn't have to dial back an 80Mbtuh 2-stage furnace. Low stage will likely work just fine, again if...
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    It depends, many mfg’s are starting to use more...

    It depends, many mfg’s are starting to use more rotary compressors. If a non-bleed txv is installed on the coil a hard start accessory will likely be required. Some equipment mfg’s won’t include...
  39. I can wash my car from 15' away too, but just...

    I can wash my car from 15' away too, but just because it's getting wet doesn't mean it's getting clean. Also, if you're complaining about toxicity, just imagine what kind of toxic fumes the coil...
  40. The minimum is 500fpm for exhaust hoods. With...

    The minimum is 500fpm for exhaust hoods. With 10" you'll be at ~1100fpm @600cfm at ~1/3 the static of the 8" duct. While the 8" duct will have much greater velocity ~1750fpm, it's likely the motor...
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    Home diagnostics, service repairs, installation,...

    Home diagnostics, service repairs, installation, and maintenance when I have time. I have a list of maintenances of people waiting. I wish I could find someone to take over installations, but it's...
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    I was an LLC until my CPA told me I would be...

    I was an LLC until my CPA told me I would be better off being an S-Corp. He set it all up, and saved me quite a bit on taxes. The LLC is the bare minimum anyone should start with. You definitely...
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    Meanwhile, all of this fictional data crunching...

    Meanwhile, all of this fictional data crunching will likely end up with a poor installation using existing leaky ducting. With a split ducted system your ducting is key to high efficiency. It...
  44. As long as your new air handler has a txv...

    As long as your new air handler has a txv refrigerant metering device the Bosch will work fine. It won’t be 20 SEER though. More than likely it will be in the 15-16 SEER range, but that’s much...
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    Exactly the same, too time consuming and a...

    Exactly the same, too time consuming and a battery eater!
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    Hello Jim, will the next gen Testo 300 have...

    Hello Jim, will the next gen Testo 300 have integrated use with the new Bluetooth adapter on Measurequick or is it not possible? Seems Testo is still a bit behind when it comes to integration.
  47. Fingers crossed, maybe I just need to be patient,...

    Fingers crossed, maybe I just need to be patient, this is a brand new feature. Maybe I need to do a YouTube video and expressed to Testo how they need to integrate the app a little more effectively....
  48. Ok, the 300 firmware update worked. Only issue I...

    Ok, the 300 firmware update worked. Only issue I have now is the 300 will not integrate with all probes. So, that means if I want an intake air temp measurement I need to buy the new air probes,...
  49. UUUUUUGGGGGHHHHH! Did I go down the wrong rabbit...

    UUUUUUGGGGGHHHHH! Did I go down the wrong rabbit hole? I was finally able to get ahold of the BT adapter, but can't seem to get it to work on the phone app like the advertisement states. The app...
  50. Your system doesn’t seem to be configured...

    Your system doesn’t seem to be configured properly. You need to have your installer back out if CL1 and C2 are working as designed.
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