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  1. Replies
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    These arent perfect answers but thoughts to think...

    These arent perfect answers but thoughts to think of. Good questions.

    Remember higher temps = higher pressures. whatever the metering device. A slightly low system wont show the same pressures as...
  2. Replies
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    4,234

    The beer in the walk-in needs to be colder 34-36...

    The beer in the walk-in needs to be colder 34-36 degrees preferably.
    The glycol loop needs to be somewhere under 30 but this only removes heat buildup from the tap lines. Most run around 25 deg...
  3. Replies
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    4,066

    Appreciate all your inputs. Living and...

    Appreciate all your inputs.

    Living and learning still.
  4. Replies
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    4,066

    Chuck the oil is saturated with it. Cracker I...

    Chuck the oil is saturated with it.

    Cracker I saw that copeland bulletin in your link, thanks.

    Instead of saying the only solution I should have said is system replacement the best solution....
  5. Replies
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    4,066

    R134a and green slime anyone?

    Green slime in refrigerant. Heard of it never seen it but then I have only been in the biz for a few decades.

    Maybe someone can help identify this.

    I have a small R134a system, 8' cold well...
  6. Replies
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    616

    Alternate refrigerant recovery.

    Good sense and logic says recover all refrigerants. I allways attempt to recover as complete as possible.
    An unintentional accidental release recently of R404a caused me to try and understand just...
  7. Replies
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    5,818

    I recently looked at published internet equipment...

    I recently looked at published internet equipment pricing. Shipping costs are extra.

    When compared to our sell prices we are very close pricewise on every item they list with our ship and handling...
  8. Replies
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    2,273

    yep If I remember right that was a particularly...

    yep
    If I remember right that was a particularly nasty store. Is that the one with a million pigeons on the roof. They had moved into and shat over all the equipment. Equip was pretty old and heat...
  9. Replies
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    In the late 90s I was with a company where we did...

    In the late 90s I was with a company where we did the service and maintenance on around 240 KM stores in the southwest.
    We had one guy who did all the PM inspections in all of AZ. 6 or7 guys in AZ...
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    774

    Thankyou Powell Yeah I knew it was a 98 model...

    Thankyou Powell

    Yeah I knew it was a 98 model changeout. guess I should have know the A too but didnt register.
  11. Replies
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    774

    Oil questions conversion 404a

    Copeland mn#LACA-0131A-TAC-800 sn#CT98102235

    Putting a closed up bakery on line after a 4 year shutdown. System is at least 30 years old no condenser tag.

    W/IN freezer system flat leaks found...
  12. Replies
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    1,411

    :) I know this thread is going astray but I think...

    :) I know this thread is going astray but I think all you answered the OPs question very well.

    I wasnt talking about a 40 ton just a 2 ton my newest guy was working on today. His logic was that...
  13. Replies
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    1,411

    "It isn't the amount of time, it's how clean he...

    "It isn't the amount of time, it's how clean he gets the system when doing it. It can take a lot longer to clean a large system than a small system"

    Sorry I just went through this with a tech...
  14. 50k BTU/h Too much air flow, motor set on high...

    50k BTU/h
    Too much air flow, motor set on high speed, duct too large, low gas pressure, fan delay, all these need to be checked by your service company.
    Check the temperature rise across the...
  15. Replies
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    1,075

    Check with wright/hennepin electric (whe.org) I...

    Check with wright/hennepin electric (whe.org)
    I have several customers who are monitored by them. they can do temperature, water, fire, burglar whatever. and they serve a wide area around the TCs...
  16. Thread: Hallowell HPs

    by airon
    Replies
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    991

    oops double post. How do I just delete these?

    oops double post.

    How do I just delete these?
  17. Thread: Hallowell HPs

    by airon
    Replies
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    991

    Thanks coldin utah I'll see if I cant figure out...

    Thanks coldin utah I'll see if I cant figure out that E.
    50% is a nice savings.
  18. Replies
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    1,671

    ERV/HRV simply exchange the air in the home. HRV...

    ERV/HRV simply exchange the air in the home. HRV for the north country. They do not for the most part provide enough makeup air for a wood burner and exhaust.
    That said many folks do use them...
  19. Replies
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    Whats your water temp? Outside temp? If the...

    Whats your water temp? Outside temp?
    If the system was sized correctly I wouldnt think there would be any need for electric backup at all.
    If your water (loop) temp is say 55deg then I would think...
  20. Replies
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    2,656

    You will not go wrong spending the extra 14 seer...

    You will not go wrong spending the extra 14 seer dollars for a 95% high efficiency variable speed 2 stage Goodman furnace. Those extra dollars will earn their way.
    ...
  21. Thread: boiler room

    by airon
    Replies
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    857

    Thats called a destabilizer. One who causes you...

    Thats called a destabilizer. One who causes you to slip and break the purple peeper out.
    Closely related to the gremlins that snicker from behind the pipes at 3AM wich cause unknown flame failures.
  22. Replies
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    579

    Vision pro 3h 2c w outside senser is all we use...

    Vision pro 3h 2c w outside senser is all we use for Goodman equipment and find them to be the most effective and efficient. Readily adjustable operating points at the stat.
    When install costs are...
  23. Thread: Hallowell HPs

    by airon
    Replies
    8
    Views
    991

    Thankyou Gary. There are afew threads on these...

    Thankyou Gary.

    There are afew threads on these units I see.

    They do appear to make sense at low temps ( to -30 deg f) in my area normal mid winter lows to -10. El co-op power costs at .09. Off...
  24. Thread: Hallowell HPs

    by airon
    Replies
    8
    Views
    991

    Hallowell HPs

    Hi does anyone have any direct experience with the Hallowell heat pumps.

    Installed, monitored or have one themselves? Is the cooling side good? does the staging operate on the cooling side?
    Any...
  25. Replies
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    1,692

    Turboaire refrigerated boxes.

    I happen to like these units, especially their prep tables. In comparison to other units built today I think they are better. Some of their low end upright R/ins are as advertised and priced...
  26. I remember the biggest problem in the changeover...

    I remember the biggest problem in the changeover from the big 3 refrigerants, R12, R502 and R500 wasnt so much adapting to the many many alternates that came on the market, but it was more in the...
  27. Replies
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    1,442

    You can move a lot of air through a 20x20 duct....

    You can move a lot of air through a 20x20 duct. 2400 cfms shouldnt be a problem. Might be a little noisy at the returns and verify statics.

    You would have to twin the units so that both blowers...
  28. Replies
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    5,185

    I agree, nice looking install. I like the...

    I agree, nice looking install.

    I like the literature rack with what looks like a service log on it instead of in it.
  29. I might install it but would have to price the...

    I might install it but would have to price the job as if I sold the unit, with proper margins built in above your costs and even then no warranty on equipment or labor.

    I would however provide 30...
  30. Thread: Cold Remedies?

    by airon
    Replies
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    1,403

    Put a few drops of hydrogen peroxide in your...

    Put a few drops of hydrogen peroxide in your ears.

    I actually found this when googling the question a few months back and have since heard a lot of people who do it.

    Not sure if it helped but...
  31. Replace the valve with one rated for LP. check...

    Replace the valve with one rated for LP.

    check the data you will need a higher manifold pressure for LP maybe 6" on low and 10"on hi fire.

    A few equip mfgs supply an either or LP/NG valve where...
  32. Replace the valve with one rated for LP. check...

    Replace the valve with one rated for LP.

    check the data you will need a higher manifold pressure for LP maybe 6" on low and 10"on hi fire.

    A few equip mfgs supply an either or LP/NG valve where...
  33. Replies
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    1,670

    First congratulations on having a go at it....

    First congratulations on having a go at it. Sounds like great opportunities await you.

    When estimating anything of size I use a few different cost estimators to help cover the unknowns or not...
  34. Replies
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    Hotshot and green oil.

    New account today through referal with 7 w/in cooler 2w/in freezers and multiples of other refer units and I/Ms as well as multiple hvac equipment.

    Walked into facilities and could see oil glowing...
  35. Replies
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    859

    1st stage is for cooling with light loads. In...

    1st stage is for cooling with light loads.

    In heating you get more BTUs from the outside ambients running full speed.

    This is a fault when designing a system for cooling only. Heat becomes...
  36. Replies
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    5,763

    With some of the logic posted here I guess we...

    With some of the logic posted here I guess we should raise our prices on Goodman equipment so the customer feels they get a better deal.

    If we price our equipment next to Tranes or other mfgs...
  37. Replies
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    5,763

    Mayguy. The goodman board is set up to run 2...

    Mayguy.
    The goodman board is set up to run 2 stages of heat either timed through the board or with a 2 stage stat. Its set by jumper position.
    All Goodmans are 2 stage.

    I have installed quite...
  38. Replies
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    1,079

    :)I gathered that from your response above and...

    :)I gathered that from your response above and agree with your cons completely in that case.

    But if it is just the compressor been there done that a few times.

    Funny thing is though, I have...
  39. Thread: R404A and R507

    by airon
    Replies
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    817

    I use 404a because thats what we carry and the...

    I use 404a because thats what we carry and the majority of our serviced equipment calls for it..

    404a runs slightly lower pressures at given temps, does that translate to better electrical...
  40. Replies
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    1,079

    No reason it wont work. Remember comp rated...

    No reason it wont work.

    Remember comp rated BTU capacity drops as evap temp drops. Example; 60k btu at 45 degrees hi temp evap may be 40,000 at 20 deg med temp. Dont quote me check mfg curves for...
  41. Go with the highest efficiency possible 95%...

    Go with the highest efficiency possible 95% variable speed and 2 stage. Use a vision pro 3 stg heat or better control with outside sensor for changeover.

    Centerpointe energy has a calculator on...
  42. Thread: TXV Needed?

    by airon
    Replies
    2
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    638

    As long as its a matched system no TXV required.

    As long as its a matched system no TXV required.
  43. Thread: lockout temp?

    by airon
    Replies
    11
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    1,363

    At 40 degrees in Minnesota we open the windows...

    At 40 degrees in Minnesota we open the windows and put on shorts.

    Most of our customers are set up to lock out the heat pumps at 20-25 degrees. A few go lower still.
  44. Try these guys. They may have something to meet...

    Try these guys. They may have something to meet your needs.

    http://www.ur.com/index.php/equipment/rental/browse/?category=Aerial+Lifts&page=1
  45. Replies
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    2,032

    Paul I dont know your machine exactly, but...

    Paul

    I dont know your machine exactly, but most of them held around 3 lbs.Receivers allow some room for non critical charge. Do you know the original gas? Also a site glass off reciever if not...
  46. Thread: which way to go?

    by airon
    Replies
    5
    Views
    636

    If you can have only ONE control. Pressure...

    If you can have only ONE control.

    Pressure control by far. Allways set up by quages.

    Not as easily influenced by wayward drafts from open doors etc.. and you can avoid many frosted coils. Much...
  47. Thread: smell

    by airon
    Replies
    25
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    2,414

    The problem has been there for 15 years. Some...

    The problem has been there for 15 years. Some good advice given on vent pipes and open drains.

    A couple other thoughts worth mentioning.

    Bathroom exhaust fans on roof I assume. What type of...
  48. Replies
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    904

    All the major manufacturers, Duke, Sterling,...

    All the major manufacturers, Duke, Sterling, Taylor, Ross, etc.. have training available as well as good manuals for all their equipment.

    The machines are simpler than they appear. Basic...
  49. Thread: Infrared Cameras

    by airon
    Replies
    14
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    1,502

    the infrareds dont work so well on reflective...

    the infrareds dont work so well on reflective surfaces like shiny metal duct. Secondly a lot of indoor metal residential duct is not insulated and therefore the camera becomes useless.

    Great tool...
  50. Answer is Yes.

    Answer is Yes.
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