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  1. For the direction of air handler, most...

    For the direction of air handler, most mobile/manufactured homes have the ductwork in the floor, with crossover ducts under the home. In my area of southern Arizona, where it was 100į today, my 1973...
  2. Howís the van with your new, to you, engine?...

    Howís the van with your new, to you, engine? Hoping itís back to normal and as expected. Last I remember it came back, air only out of defrost... Repair video is gone. Figured Iíd double check as...
  3. Motor guy pulled it, or broke that fitting off...

    Motor guy pulled it, or broke that fitting off the reservoir. Should be a quick fix if it just pulled off, hard to reach if it needs to be replaced.
  4. https://youtu.be/m_S5sOx7csk

    https://youtu.be/m_S5sOx7csk
  5. Oh man, I spend a chunk of time, growing up in...

    Oh man, I spend a chunk of time, growing up in England. Lakenheath from 83-86. And Bentwaters from 86-89, lived off base near the castle in Framingham. My friends parents were the caretakers of the...
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    Check the condensate collection on that air...

    Check the condensate collection on that air dryer, Iíve had a few that were destroyed by not draining them. They assumed they were auto drain, but were not.
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    Is that a pez dispenser or a pen of some kind?...

    Is that a pez dispenser or a pen of some kind? Passenger side door jam of rear door with a face, maybe the Presidentís on it?
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    Navien hot water heater

    All gas appliances are required to have an appropriately sized flexible gas connector (these are single use items BTW) in my area, due to it being a seismic zone. In the event of an earthquake, all...
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    My brother in law uses that tiny jewelers torch...

    My brother in law uses that tiny jewelers torch set. He seems to like it, Iíve seen him braze 15% 1-1/8Ē Copper with that torch. In my opinion it takes too long, he also has a ridiculously long...
  10. Electronic leak detector, zero/recalibrate...

    Electronic leak detector, zero/recalibrate re-test. Verify with BigBlu from Refrigeration Technologies, they even sell a SubZero version for low temp. Out of all the bubbles Iíve tried BigBlu will...
  11. Just reading thru all these, Dan SW... can get...

    Just reading thru all these, Dan SW... can get you a really close manual j heatload, just by answering a few questions about location and whatnot he asked a few pages back. And I think everyone else...
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    When your tech does go out to check your furnace,...

    When your tech does go out to check your furnace, please let them know everything you changed (like the dip switches). And which safety circuits were bypassed. The unit should not be able to run with...
  13. What part of the world are you located? In very...

    What part of the world are you located? In very dry areas, like the desert where Iím at weíll use up to 500 CFM per ton. In very humid areas the design may be as low as 325 CFM per ton. We frequently...
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    Your thermostat is just a switch. If you had a...

    Your thermostat is just a switch. If you had a lamp that didnít work, the switch is the last thing youíd check. Would you blame the switch if you turned it on and off quickly? A thermostat really is...
  15. https://uploads.tapatalk-cdn.com/20191204/de952e60...

    https://uploads.tapatalk-cdn.com/20191204/de952e6090ccdda3f38a66687248a3fd.jpg
    They certainly make 4Ē filters specifically for filter grilles.
  16. I just checked NCI website, myhomecomfort dot org...

    I just checked NCI website, myhomecomfort dot org thereís 5 contractors listed from 89101. Thereís so much info on that site (that I havenít seen and will be catching up on). NCI has a strong focus...
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    Most of those Honeywell thermostats have a built...

    Most of those Honeywell thermostats have a built in 5 minute delay. Switching quickly from heat to cool will activate the 5 minute timer. Itís a safety. Anytime you switch the power off or heat to...
  18. Iím so sorry you are dealing with this. You...

    Iím so sorry you are dealing with this. You shouldnít have to train the contractors that are there to fix the problem. The descriptions youíve given for the first few contractors donít give...
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    Years ago we had a few of the safe-T-switches...

    Years ago we had a few of the safe-T-switches fail. Switched to the EZ trap from Rectorseal and havenít had any issues. All the other benefits of the EZ trap make it a no brainer. The little...
  20. What brand, and model/serial is this furnace if...

    What brand, and model/serial is this furnace if any of those labels are legible? I have seen many brand new furnaces that have burner orifices capped from the factory. Itís not guaranteed that a...
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    https://uploads.tapatalk-cdn.com/20191128/22de864a...

    https://uploads.tapatalk-cdn.com/20191128/22de864ae0a145f36dd37becf16e20ba.filehttps://uploads.tapatalk-cdn.com/20191128/eb1dc923eb2a952dc89d72cebf1f17e9.file
    These are in a 5000 sq. foot, the duct...
  22. Replies
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    Hello fellow Tucsonian, Iíve built and...

    Hello fellow Tucsonian, Iíve built and conditioned over 20 garage-mahal types all over the area. A mini split will not make you happy or comfortable. Ducted unitary systems are much better. I have...
  23. Iíd assume the roofers would charge for...

    Iíd assume the roofers would charge for installing tie off points, and youíd know if they installed them.
    The picture shows double wall flue pipe....
  24. I would call out a reputable HVAC company to...

    I would call out a reputable HVAC company to check the flue. Many Roofers I have met canít tell the difference between an exhaust fan and a dryer vent, and a flue pipe. An HVAC company can check...
  25. https://uploads.tapatalk-cdn.com/20191118/788ab136...

    https://uploads.tapatalk-cdn.com/20191118/788ab13677dd4543cf517ba58eaeb1f7.jpg
    https://uploads.tapatalk-cdn.com/20191118/8d6d7b05f004f5ed589226dddbc64e41.jpg
    This one is bad in these pictures, from...
  26. Replies
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    I found these rolls of filter media from the same...

    I found these rolls of filter media from the same people that made your filters.https://uploads.tapatalk-cdn.com/20191118/80e50a73727e76a8a6cf001c4c559fd9.jpg
    The blue one looks the most like the...
  27. Replies
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    The pre-filters keep the pocket filters from...

    The pre-filters keep the pocket filters from loading up with the biggest stuff. They donít show a different on the magnahelic adding them. I found your filters listed at 50-60% efficiency. I can...
  28. Replies
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    When to replace bag filters?

    Since you mentioned Carrier system, do you have the thermostat/controller that lists static pressure on one of the screens? That is included in their higher end controllers and is basically a...
  29. Replies
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    When to replace bag filters?

    This is the home that has a digital static pressure gauge.
    https://uploads.tapatalk-cdn.com/20191117/49ee561c9bb61191768f6def79521c6a.jpg
    The Testo brand meter with the blue hoses between the zone...
  30. Replies
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    When to replace bag filters?

    I have bag filters set up in one of my personal systems. The best way to tell when itís time to replace is a gauge. The most basic of gauges that I sell are a couple hundred bucks installed (trip...
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    Thatís precisely what I envisioned, just a...

    Thatís precisely what I envisioned, just a different paint job in the cartoon that plays in my mind.
  32. Replies
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    Thinking about it now, I havenít got any emails...

    Thinking about it now, I havenít got any emails from this site in a long time, maybe itís been since the ďcrashĒ. Do you get email notifications if someone replyís?
  33. Where are you reading 14v at, terminal strip at...

    Where are you reading 14v at, terminal strip at air handler from C to R? Is common grounded? What do you get from R to common at transformer? And from R at the terminal strip to cabinet ground? Do...
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    The CO detectors from the store will only alert...

    The CO detectors from the store will only alert at a deadly level. Do not trust them. A low level CO monitor will alert you when any CO is present.
    Believe it or not, the pictures look like a...
  35. The Testo static is a neat addition, I donít...

    The Testo static is a neat addition, I donít recall seeing a digital incorporated into an install. Iíve seen plenty magnahelic brand analog with the sweep needle as part of a permanent install. Was...
  36. The gas line is certainly worth it, the parts are...

    The gas line is certainly worth it, the parts are all there just configured improperly. A single grain of sand or dirt or rust can ruin a gas valve in the furnace. Anytime a gas line is cut dirt and...
  37. Several manufacturers have falsely drawn pictures...

    Several manufacturers have falsely drawn pictures of a drip leg and describe a sediment trap. A sediment trap will serve both purposes, where a drip leg will not. Must change direction.
    The...
  38. If you search on this site for user Teddy Bear...

    If you search on this site for user Teddy Bear heís the dehumidifier expert. Most of his replyís will have the information that youíd need when talking with your local HVAC contractor. Pros that...
  39. Just a thought... have you looked into a whole...

    Just a thought... have you looked into a whole house dehumidifier appliance? By air sealing and adding insulation you have reduced the sensible load. The latent load remains and can only be addressed...
  40. Any brand is better, seriously. Itís excellence...

    Any brand is better, seriously. Itís excellence thru advertising, the manufacturer convinced people their product is great, itís not. Iíve had no less than 20 nest (thereís a reason itís a 4 letter...
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    Those insider units were difficult to design,...

    Those insider units were difficult to design, itís a package unit that sits entirely in the home. Thereís an outside air from under the house that cools the condenser coil with outdoor air and...
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    Iíve had good luck with the Solderweld brand...

    Iíve had good luck with the Solderweld brand products, the powder flux has a color change indicator built in. They also have
    Al-Cop rod that is shaped like a U channel with the flux inside the U,...
  43. Are there any other drains in your utility room,...

    Are there any other drains in your utility room, or a washing machine? The unit could be pulling air out of dry drains when running, supply air leaks cause the living area to become a negative...
  44. You can try a product called ďSpray NineĒ if the...

    You can try a product called ďSpray NineĒ if the bleach concerns you. It cleans and kills mold and mildew, bacteria and all kinds of things that could potentially smell in the air handler drain. I...
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    Of the 200ish HVAC techs that I know in Tucson,...

    Of the 200ish HVAC techs that I know in Tucson, most should be able to accomplish this project. What part of town? Iím picturing mid-town. Sealing the ductwork should be pretty simple, depending on...
  46. Is the air itself loud going thru the grille? The...

    Is the air itself loud going thru the grille? The new one is a fixed bar which does flow much better than the original stampface grille. Sometimes those humming noises are from the louvers...
  47. Where is your furnace/air handler in the house?...

    Where is your furnace/air handler in the house? Attic, basement, crawl space, garage, hallway mechanical room? Is the 3 ton system you referred to the one thatís not keeping up? How much square...
  48. Replies
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    If the home you are dealing with is in Tucson,...

    If the home you are dealing with is in Tucson, AZ. The A/C is probably set up for the majority of the year, as a desert system. This year in particular has been an unusual monsoon. High humidity with...
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    Do you have a phase monitor on the unit? Like a...

    Do you have a phase monitor on the unit? Like a basic ICM450, itíll add protection from the voltage fluctuations. Most supply houses near me carry them, I try to offer them on all 3 phase systems. ...
  50. What kind of control (thermostat) do you have,...

    What kind of control (thermostat) do you have, many will indicate if itís in first or second stage. It might be in a sub-menu of a sub-menu.



    If itís an unloading scroll itíd be 67% in first...
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