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  1. Replies
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    You are correct that the Honeywell TH6110D is a...

    You are correct that the Honeywell TH6110D is a single stage thermostat. I prefer staging by the thermostat over the furnace. Thus would request the Honeywell TH6220D series, this has 2 stage heating...
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    Could be a faulty/failing ECEM board? Swap that...

    Could be a faulty/failing ECEM board? Swap that out for sh!ts and giggles with a known good one.
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    Pipe to pipe fittings I can see, running and...

    Pipe to pipe fittings I can see, running and installing a ton of refrigerant piping, industrial piping, and even a few residential/light commercial couplers and ells. But getting all the manufactures...
  4. Thread: Relay

    by slctech
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    481

    https://www.engineeredair.com/parts/1g830m432.pdf...

    https://www.engineeredair.com/parts/1g830m432.pdf

    Straight from the manufacturer
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    There are a few other things I have come across...

    There are a few other things I have come across in these RARE scenarios that has not already been brought up.
    1) Improper gas pipe sizing. Usually multiple rooftops and when they are all operating...
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    As for the gas valves, I believe anything over...

    As for the gas valves, I believe anything over 500,000btu requires two for redundancy, if one doesn't close, the other will. They are usually both energized and de-energized simultaneously. Very...
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    Most of us know that there is an OEM shipped...

    Most of us know that there is an OEM shipped inner pipe and an outer casing to run up through the blower compartment to prevent flue gases being pulled into the return. One main issue with this is...
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    Another down-flow furnace head scratcher

    No real explanation needed.
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    This will blow your minds: This little device...

    This will blow your minds:

    This little device I am holding in my hands was deemed so confidential back in the days that I signed numerous letters of confidentiality punishable by prison and fines...
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    Poisson Ratio................key to ceramics...

    Poisson Ratio................key to ceramics versus metals. NASCAR engines all run on ceramic bearings and ceramic sleeved piston cylinders. Tesla's cars all run on ceramic bearings in their motors...
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    559

    If we are replacing bearings in the field, we...

    If we are replacing bearings in the field, we have had great success on larger horsepower VFD driven motors going to SKF hybrid bearings. Cost is worth it, though they are ceramic, we think fragile....
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    The best thing when dealing with a tandem...

    The best thing when dealing with a tandem compressor set is to replace both compressors. However, at a minimum removing the good compressor and draining it of all the oil, pour some good oil in and...
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    Since Caleffi redesigned the end switches I have...

    Since Caleffi redesigned the end switches I have not had any problems with them. Before, I was replacing end switches routinely.

    I also like the Danfoss TWA and ABRA series actuators
    ...
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    1,571

    Just chuck the re-chargeable crap and charger and...

    Just chuck the re-chargeable crap and charger and use your everyday "C" cell batteries. It took me a moment to remember that this originally was suppose to be rechargeable.

    Funny thing is that...
  15. Replies
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    1,571

    All I know is that I have had the good ole...

    All I know is that I have had the good ole TIF8800 for nearly two decades and she just keeps sniffing.

    Never played with any other sniffers. Kind of been loyal to mine. I like the way you turn on...
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    3,159

    Love the input.

    Love the input.
  17. Replies
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    3,159

    A bit of serenity on an other wise chaotic roof. ...

    A bit of serenity on an other wise chaotic roof.

    651181





    THE END
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    Some more :gah::gah::gah::gah::gah::gah::gah:

    Some more


    :gah::gah::gah::gah::gah::gah::gah:
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    Been busy, so finally this weekend got a chance...

    Been busy, so finally this weekend got a chance to catch up.

    So the job went off with out a hitch. Old unit, duct, and girders were craned off and sat on an awaiting flatbed.
    650981


    New...
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    You got a bit of mail

    You got a bit of mail
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    What is the economizer module you are dealing...

    What is the economizer module you are dealing with, or are you working with Reliatel?

    What is the model# of the Voyager RTU your working with, we can probably get you set-up with what you need via...
  22. Thread: Russia

    by slctech
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    3,406

    I guess I have two questions on the second...

    I guess I have two questions on the second location pictures:

    1) In the picture of the outdoor Lennox condensing unit, what is the blue stuff on the 45 elbow on the suction line?

    2) I notice...
  23. Thread: Wiring diagram

    by slctech
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    416

    Add an email address in your profile and either I...

    Add an email address in your profile and either I or RUNDAWG can get you emailed with the service manual.
  24. Replies
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    On the economizer module itself are the P and P1...

    On the economizer module itself are the P and P1 terminals. They usually come with a factory jumper to allow only adjustment of the Minimum Position Setting to controlled directly by the adjustment...
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    Not knowing the exact module, why not just...

    Not knowing the exact module, why not just utilize the Minimum Position terminals P and P1. I am sure currently they are jumpered. Just need a 135 ohm resistor across that to drive your mimimum...
  26. All good, TB. Probably be calling you this...

    All good, TB.

    Probably be calling you this week. Got a few questions for ya on the mutual paths are careers may be taking.
  27. TB, we need to be careful here...........TMI for...

    TB, we need to be careful here...........TMI for the open forum, in my opinion. So at this moment with the serial number we know that this unit does not have the capability to have some mysterious...
  28. Model number of rooftop unit? Depending on the...

    Model number of rooftop unit?

    Depending on the model, it may have a communicating board (ComfortLink) and if this is the case it can be fairly simple for a tech with the proper communicating...
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    EcoVent was not purchased or acquired by Emerson....

    EcoVent was not purchased or acquired by Emerson. Basically, Emerson, gets a bunch of EcoVent's stock in exchange for money. This type of investment is coined a "series-a-round". EcoVent, being new,...
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    Quality is nothing to jump up and down about, but...

    Quality is nothing to jump up and down about, but rugged enough for all I would ever use it for. Hard case like my other, and treat it with respect as I do my Flir, Combustion Analyzer, CO Detector,...
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    This is the one I ended up getting after my...

    This is the one I ended up getting after my Extech/No-Name was stolen.
    Vividia VA-350, got it on Amazon.

    Have had it about a week, but much better image than my Extech and all I really wanted was...
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    I guess this is good example why it is against...

    I guess this is good example why it is against code to utilize galvanized regular duct pipe for a flue.
  33. Replies
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    I had issues with certain programs such as...

    I had issues with certain programs such as SimplicityPC, Trane Rover, and Honeywell TStatSpec operating on Windows 10 so reverted back to Windows 8 on my field laptop. But I did upgrade my office...
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    http://www.heatcraftrpd.com/PDF%5CI&O%5CH-IM-64L.p...

    http://www.heatcraftrpd.com/PDF%5CI&O%5CH-IM-64L.pdf

    Good and Basic diagrams towards the end of this document.....basically covers 90% of your Bohn/Heatcraft stuff you will come walk into.

    As...
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    Living here in, Utah, home of all things...

    Living here in, Utah, home of all things genealogy. Can simply tell you to box it all up and just donate it to the LDS Genealogical Library. They will inventory it all, scan it, and index it. Been...
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    Scotty, called me yesterday. Had tried everything...

    Scotty, called me yesterday. Had tried everything we talked about. House in question is 10 minutes from my place so we scheduled to meet together first thing this morning before I had to head out on...
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    Stopped by the metal fab shop and verified curb...

    Stopped by the metal fab shop and verified curb dimensions. Curb about finished.

    645681

    645691
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    I think the adaptor ring is if your trying to...

    I think the adaptor ring is if your trying to mate a EON 5.0 ECM module to the original 2.3 ECM Motor. Since you have a newer EON 5.0 ECM motor (which does not have a true end plate), does it not...
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    Look in ERV or HRV equipment, depending on your...

    Look in ERV or HRV equipment, depending on your climate region. Installation of these units on newly constructed homes is code now in Canada and I am sure coming soon to the U.S.
    HRV/ERV are more...
  40. Replies
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    In-line duct booster fans are nothing more than a...

    In-line duct booster fans are nothing more than a useless novelty item.

    As for your question that particular control board is just a run of the mill basic board with multi speed taps, thus you do...
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    Evolution of a commercial RTU done RIGHT

    I knock out about two of these type of retro's a month. I will be very honest that I f!@# despise horizontal duct work and the less the better!

    This particular job has a 1979 Carrier RTU. Been a...
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    Local guy and right up the road from me. He...

    Local guy and right up the road from me. He noticed I was from the area and he emailed me and we talked a bit yesterday. Told him to get his count up and keep a thick skin around the open forum. I...
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    Me thinking that you can strap a million miles of...

    Me thinking that you can strap a million miles of grounding to this thing, but I have a suspicion that someone with electrical prowess needs to make sure they are not dealing with loose or floating...
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    Goodman?

    Goodman?
  45. Replies
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    It looks like one, but it is not.

    It looks like one, but it is not.
  46. Awwwwwwwww Not being an ass. Just your new...

    Awwwwwwwww

    Not being an ass. Just your new here with only 4 posts to your name. Stick around long enough and you start to pick-up on some very common trends.
    1) New guy
    2) Cry for help....in...
  47. Why does it always seem to be a Goodman when...

    Why does it always seem to be a Goodman when these so called installers come crying for help:rolleyes:
  48. Replies
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    I am not a TAB or NEBB certified guy and if...

    I am not a TAB or NEBB certified guy and if someone needs or an engineer requires such exhaustive reporting, then they can obtain the services from such entities or we can sub-contract one for them....
  49. First thing I always look at is the static...

    First thing I always look at is the static pressure across the blower (TESP). If you are not pulling or pushing enough air across any furnace, your just wasting your time. Once proper air-flow is...
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    You know, it just comes down to engineering. What...

    You know, it just comes down to engineering. What achieves the greatest efficiency and broadest range of static, with least amount of space, noise, and horse-power.

    There is a whole science to the...
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