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Type: Posts; User: David Goodman

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  1. Replies
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    Do you have the LGMV app for running diagnostics?

    Do you have the LGMV app for running diagnostics?
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    By the marking on the part in one picture, it...

    By the marking on the part in one picture, it looks like a 5” 125lb service strainer. All of the bolt heads look like they are rotated out.

    I can certainly envision the hoop stress component.
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    Wayne, thanks for re-engaging. Looking at the...

    Wayne, thanks for re-engaging.

    Looking at the third picture down, there is a chunk of the flange stuck to the insulation, it looks like it came from area of the bolt in the 9 O’clock position. The...
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    I, for one, am not learning anything about...

    I, for one, am not learning anything about chiller pipe failure at this point.

    Forensic examination of flange failure could be very useful, but we aren’t going in that direction. :det:
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    lzenglish, let’s assume that freezing wasn’t the...

    lzenglish, let’s assume that freezing wasn’t the root cause of this failure, and that possibly what people are seeing as obvious freeze damage occurred after the initial failure.

    What then could...
  6. I am confused. If you directed the HVAC...

    I am confused. If you directed the HVAC contractor to take an outdoor unit from one of your rental properties, and install it at another property, how did he install the wrong equipment?

    Did he...
  7. They know what you guys are like. So, they...

    They know what you guys are like. So, they installed an industrial strength fart fan.
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    Do you know why the evaporator target temperature...

    Do you know why the evaporator target temperature split on the iManifold report was 56°F?

    Was it because the Design/Rated Airflow was input as 400CFM?
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    What were your inlet and manifold pressures? ...

    What were your inlet and manifold pressures?
    Were they stable?
    Was this a positive or negative pressure valve?
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    Alright, I might see what you are talking about...

    Alright, I might see what you are talking about now.

    4 O’clock on the top picture appears thicker than 10 O’clock as well.
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    So you are saying that the inner edge of the top...

    So you are saying that the inner edge of the top picture is not rolled in?

    I’m pretty sure I can see the rolled edge at the end of the tubing in the bottom picture.

    You simply can’t compare the...
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    Pic’s are often appreciated. Where does the duct...

    Pic’s are often appreciated. Where does the duct go that is attached?
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    Could be a fresh air intake, but can’t be sure...

    Could be a fresh air intake, but can’t be sure without more details.
  14. So, really this installer works for a licensed...

    So, really this installer works for a licensed company, but does unlicensed side work.
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    Just a warning against relying on a trade...

    Just a warning against relying on a trade qualifier who doesn’t have plenty of money at risk in the business.

    No matter how well you think a contract has been constructed, if that person decides...
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    The top cut would need to be reamed to show the...

    The top cut would need to be reamed to show the tube thickness.
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    There should have been an “if” included.

    There should have been an “if” included.
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    Another possibility. All three units were...

    Another possibility.

    All three units were built custom at the same time. They were supposed to have 3K thermistors for the controller refrigerant temperature sensors, but 2.2K thermistors were...
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    If I am reading this correctly, you used three...

    If I am reading this correctly, you used three different probes to recheck the leaving water temp.. However, the liquid temp. was from the controller refrigerant temperature sensor which is part of...
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    Did you notice the copywrite date at the bottom...

    Did you notice the copywrite date at the bottom of their webpage. It is 2023. They must be from the future. I am pretty sure this is the year 2019. I wonder if their company was formed on April 1st....
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    Looks a bit like a frozen coil could have pushed...

    Looks a bit like a frozen coil could have pushed the line to the outside causing the break.
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    I suggest that you start a new thread. This one...

    I suggest that you start a new thread. This one is more than 8 years old.
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    At least they... Oh, never mind. I can’t find...

    At least they... Oh, never mind. I can’t find anything good to say.
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    DESA parts are common in the brands around here.

    DESA parts are common in the brands around here.
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    I haven’t found that replacing a gas control...

    I haven’t found that replacing a gas control valve on a fireplace is cost effective for the customer.

    The price of the valve alone is often about half the price of a new unit.

    After I add in my...
  26. That would be a “Free on me” job. If the...

    That would be a “Free on me” job.

    If the customer said they liked our work, and offered to pay a portion, I would accept whatever they offered.
  27. Oh boy! It is kind of like a car that won’t...

    Oh boy! It is kind of like a car that won’t start. First thing to check is if there is any gas.

    Was the first check by the technician you called before or after the gas had been turned off?
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    What I was thinking with my question about...

    What I was thinking with my question about superheat was that with a grossly undersized metering device, the sub-cooling might have been within reasonable range, but the superheat would have remained...
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    What was your superheat with the 2.5 ton TXV?

    What was your superheat with the 2.5 ton TXV?
  30. And water works so well on greasy restaurant...

    And water works so well on greasy restaurant package units.:gah:
  31. I appreciate your concern, and I hadn’t thought...

    I appreciate your concern, and I hadn’t thought about the possible acid corrosion problem in these coils until I read your post.

    Aluminum micro channel coils have been around for more than 10...
  32. That is what I found as well. Hanging a unit...

    That is what I found as well. Hanging a unit would also require verifying that the truss was capable of supporting the extra weight.
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    This is done in almost all of the stick built...

    This is done in almost all of the stick built homes here.
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    2015 UPC 608.5 does not mention that elbows...

    2015 UPC 608.5 does not mention that elbows cannot be used in the discharge pipe. 608.5(3) allows the pipe to terminate outside the building.
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    It took me a minute to notice the trees in the...

    It took me a minute to notice the trees in the background. That is a new one to me.
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    I did a little research. Ames Instruments is a...

    I did a little research.

    Ames Instruments is a trademark of HF filed on 6/21/2018. Several of the specifications 64017 are the same as the IDVM 550. The 64017 doesn’t have the BTLE capability...
  37. Interesting. I’d like to hear more about that,...

    Interesting. I’d like to hear more about that, but I don’t want anyone to get in deep doodoo on an open forum.
  38. Thread: Gas line

    by David Goodman
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    The most costly endorsement on my general...

    The most costly endorsement on my general liability insurance is for working on LP installations. LP and natural gas supply and appliances are safe when installed and maintained properly. They can be...
  39. Thread: Gas line

    by David Goodman
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    I certainly wouldn’t connect piping or csst that...

    I certainly wouldn’t connect piping or csst that someone else had purchased or installed.

    I understand wanting to save some money by doing part of the work yourself, but it is hard for me to...
  40. I came across a Rheem package unit last year...

    I came across a Rheem package unit last year where someone had replaced the reversing valve and put it in backwards. So, it was a cool active Rheem.
  41. I know the work space above the unit is going to...

    I know the work space above the unit is going to be tight. There likely won’t be any room for elbows to take the pipes to the existing vent opening. You will need to patch the old roof penetration,...
  42. What about putting the unit on an 8” high sub...

    What about putting the unit on an 8” high sub base 20” deep toward the back?

    The unit unit should be about 27.5-28” deep, but the supply opening should be toward the back and only 17.5-18” deep.
    ...
  43. Trying to wrap my head around this. The...

    Trying to wrap my head around this.

    The mini-split pumps won’t work because they aren’t designed to handle acidic condensate.

    Are you looking at downflow, upflow or potentially both?

    Do you...
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    I looked at the CostGuard information. Their...

    I looked at the CostGuard information. Their system doesn’t use a trap, and one of the lines is on positive pressure side. That doesn’t look like what is being used here.
  45. The pump might need to be located in the crawl...

    The pump might need to be located in the crawl space if that is acceptable to the AHJ. Freezing could be an issue in Iowa.
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    How long has that been holding up now?

    How long has that been holding up now?
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    I can't think of how to prevent the tube sheet...

    I can't think of how to prevent the tube sheet from corroding under the braze.
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    Fluke TP88 Rigid Back Probe Pins ...

    Fluke TP88 Rigid Back Probe Pins

    https://www.fluke.com/en-us/product/accessories/test-probes/fluke-tp88
  49. Who were the extremely poor people? The...

    Who were the extremely poor people?

    The landlords or the tenants?

    Landlords shouldn't be allowed to get away with providing substandard living conditions. They also do a great job of appearing...
  50. Has this complex had lightening strikes, or power...

    Has this complex had lightening strikes, or power outages?

    Had a complex with over 100 units. They all had compressor protectors, but the timing was the same on all of them. So, when power was...
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