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Type: Posts; User: rglasgow

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  1. Replies
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    Why yes I do know why the liquid pressure...

    Why yes I do know why the liquid pressure registered at the service valve 150 psi (at least for R410) and near zero on suction service valve. But I try not to get into debating on the internet....
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    3,448

    I understand a lot more than I can explain. Thats...

    I understand a lot more than I can explain. Thats why I read more than I speak Mr. Sapote.
  3. If you are thinking of starting over, start with...

    If you are thinking of starting over, start with a Manual J. In central Texas, I have a 3 1/2 ton cooling a 4000 square feet foamed house.
  4. Replies
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    3,448

    I have found the Amana TXV’s to lock down upon...

    I have found the Amana TXV’s to lock down upon initial start up. They are generally adjustable. What is compressor amp draw while running. If you only have 150 psi discharge, amp draw will be low. If...
  5. As pecmsg said “it’s still dirty”.

    As pecmsg said “it’s still dirty”.
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    I am impressed! Is this your own house?

    I am impressed! Is this your own house?
  7. Replies
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    That will be a long commute to Austin Texas

    That will be a long commute to Austin Texas
  8. Replies
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    Not really looking to hire anyone at this time....

    Not really looking to hire anyone at this time. Where are you located?
  9. Replies
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    796

    Large return air leak or fresh air duct making...

    Large return air leak or fresh air duct making house go positive when blower runs?
  10. Replies
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    796

    Backdraft damper in exhaust fan?

    Backdraft damper in exhaust fan?
  11. Replies
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    1,518

    You may try looking for a one-man shop that just...

    You may try looking for a one-man shop that just needs someone occassionally for the heavier work. My son-in-law has a good full-time job but he helps me on the weekends when I am busy.
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    I admit that they weren’t necessarily lazy...how...

    I admit that they weren’t necessarily lazy...how much easier it would have been to put that condenser near the ground? Maybe they forgot the line set cover
  13. Thread: Testo 420

    by rglasgow
    Replies
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    728

    When I get a chance I will do a traverse and see...

    When I get a chance I will do a traverse and see what I come up with. May be a few days before I get a chance to complete.
  14. Thread: Testo 420

    by rglasgow
    Replies
    17
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    728

    Not sure what the 5 digit numbers are. May be...

    Not sure what the 5 digit numbers are. May be unique to each test run. I took measurements as single measurements and not as multiple measurements. You save measurements then download to computer....
  15. Thread: Testo 420

    by rglasgow
    Replies
    17
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    728

    Without using AK, I came up with 1185 cfm by...

    Without using AK, I came up with 1185 cfm by adding each supply register. Furnace is set for 1200 cfm per dip switches and ecm motor. Return came up at 1046. Will let you know as I learn.
  16. Thread: Testo 420

    by rglasgow
    Replies
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    728

    I did not use an AK factor. Dont understand why...

    I did not use an AK factor. Dont understand why it would be necessary on a flowhood. Please elaborate. I understand using AK on anometer.
  17. Thread: Testo 420

    by rglasgow
    Replies
    17
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    728

    I guess I wasn't clear about equipment. I believe...

    I guess I wasn't clear about equipment. I believe in multistage(I have a 5 stage system), BUT would rather have single with proper duct vs multistage with crappy duct. I have worked for a company...
  18. Thread: Testo 420

    by rglasgow
    Replies
    17
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    728

    I am not a T&B expert needing a flowhood. Mainly...

    I am not a T&B expert needing a flowhood. Mainly residential, but a lot of customer's eyes glaze over when I discuss static pressures and related airflow. Thinking I can get homeowner to write down...
  19. What part of Central Texas?

    What part of Central Texas?
  20. Replies
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    615

    That book is going to be well traveled. Notice...

    That book is going to be well traveled. Notice the name on front? I sold you that book several years back.
  21. Thread: Testo 420

    by rglasgow
    Replies
    17
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    728

    Thanks for your reply Bill! I ordered from my...

    Thanks for your reply Bill! I ordered from my local distributor today.
  22. Thread: Testo 420

    by rglasgow
    Replies
    17
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    728

    Testo 420

    I am looking at obtaining a flowhood for residential work. Any negatives from anyone concerning the Testo 420 flowhood?
  23. Replies
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    And when he finished that install...he just took...

    And when he finished that install...he just took a step back and ADMIRED his creation!! He was so proud!!
  24. Replies
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    Glad you found someone who knew to adjust the...

    Glad you found someone who knew to adjust the TXV! Keep their number handy and have them keep up with the maintenance on your system.
  25. Replies
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    Gravity drain or pump?

    Gravity drain or pump?
  26. Hey Pecmsg, That was quite a read!!

    Hey Pecmsg, That was quite a read!!
  27. Replies
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    Sounds way oversized! Many contractors think you...

    Sounds way oversized! Many contractors think you can oversize minisplits. Mini splits can ramp up and down in capacity BUT as the capacity ramps down the sensible heat ratio increases. It has less...
  28. Replies
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    Coil is in warranty from distributor. I am...

    Coil is in warranty from distributor. I am installing contractor so I am taking care of replacement. I detected the leak using an H-10 Pro leak detector.
  29. Replies
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    I had ordered a coil and went to supply house...

    I had ordered a coil and went to supply house this morning to pick up. Doors were all locked. An employee had the covid. Dont know when I can get the coil.
  30. Replies
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    If he only checked fittings, the leak could be in...

    If he only checked fittings, the leak could be in coil. I have one about the same age and story. Leaky indoor coil.
  31. Would you need to heat the pool if you are...

    Would you need to heat the pool if you are running the ac?
  32. You need a better contractor on site. Not enough...

    You need a better contractor on site. Not enough return would suggest low airflow. Low airflow generally causes temperature difference to be greater due to colder coil. If a contractor suggests more...
  33. You stated that insulation starts at 4” from air...

    You stated that insulation starts at 4” from air handler. Needs insulation all the way to air handler. Condensation may be forming and running into insulation and finding a pinhole to exit.
  34. If you are asking if it will cool the three...

    If you are asking if it will cool the three upstair’s rooms while the wall mount is located above the stairs, I believe you will have issues.
  35. I assume you are referring to draft inducer...

    I assume you are referring to draft inducer motor. And no it sure not be running at all when using ac. Time for a service call.
  36. Replies
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    Depends entirely on what you units you use. Some...

    Depends entirely on what you units you use. Some ducted are designed for 0.20 TESP and others are designed for up to 0.80 TESP. Of course you need to use Manual D to design ductwork and not just...
  37. I guess it’s back to the Nest theory.

    I guess it’s back to the Nest theory.
  38. Listen to VPT99! That compressor is running...

    Listen to VPT99! That compressor is running backwards. Could be Nest. Most common issue I see is (depending upon float switch used) a slow drain is causing the float to bounce. Once compressor runs...
  39. Replies
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    Another thought...you were going to put condenser...

    Another thought...you were going to put condenser on other side of sidewalk and trench for the lineset. Why not install condenser by the house and pour a section of sidewalk to dogleg out to fence...
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    If there is not enough airflow out of “small...

    If there is not enough airflow out of “small ceiling supply at far end”, then adding a return running 60 feet is a waste of money.
  41. I found it humorous that Dallas County’s list of...

    I found it humorous that Dallas County’s list of essential businesses includes liquor stores.
  42. Replies
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    Post a pic of the ring. Maybe I can get some...

    Post a pic of the ring. Maybe I can get some brownie points also!
  43. Replies
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    Look at manufacturer’s specs and see what the...

    Look at manufacturer’s specs and see what the throw would cover. Instead of a wall mount, maybe a suspended four way cassette head will give you a better coverage area.
  44. Instead of draining into downspout, run drain...

    Instead of draining into downspout, run drain down exterior of downspout.
  45. Thread: Tare Weight

    by rglasgow
    Replies
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    1,287

    Rundawg sounds So much more knowledgable when he...

    Rundawg sounds So much more knowledgable when he says it!
  46. Thread: Tare Weight

    by rglasgow
    Replies
    9
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    1,287

    From my experience, the R410 tank is about 9...

    From my experience, the R410 tank is about 9 pounds.
  47. Thread: Tare Weight

    by rglasgow
    Replies
    9
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    1,287

    I dont believe there is a tare weight on tank....

    I dont believe there is a tare weight on tank. But I have been wrong before.
  48. Thread: Tare Weight

    by rglasgow
    Replies
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    1,287

    Weigh tank before and after servicing unit. Dont...

    Weigh tank before and after servicing unit. Dont need a tare weight for the tank.
  49. Replies
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    Is it my old eyes or is the return coming into...

    Is it my old eyes or is the return coming into the back of the furnace?
  50. Replies
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    As previously stated, if he doesn’t know DC...

    As previously stated, if he doesn’t know DC voltage between communication terminals 1 & 2, he is chasing his tail. And yes I have seen the same symptoms other than the changing superheat settings.
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