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Type: Posts; User: joemach

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  1. Replies
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    I remember reading somewhere, some time ago, that...

    I remember reading somewhere, some time ago, that the USA had the highest education level before there was a Department of Education. It has been all down hill from there.

    Not sure about the...
  2. Replies
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    701

    Here is a good example why socialism/communism...

    Here is a good example why socialism/communism does not work. Someone should let Bernie in on this.

    An economics professor at a local college made a statement that he had never failed a single...
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    421

    Your best bet is to call a local contractor to...

    Your best bet is to call a local contractor to size your system properly and have them give you the options available.
  4. Thread: duct question

    by joemach
    Replies
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    430

    Don't see how it will work with only a 2 X 2 hole...

    Don't see how it will work with only a 2 X 2 hole in the firewall. Not much room for a body to get through after the ductwork. Or is this a flat roof that you will put in an rooftop unit? Maybe I...
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    I have the Supco M500. I know it is low grade,...

    I have the Supco M500. I know it is low grade, but for the handful of times I need it each year I can't justify a more expensive one. I do mostly residential.

    Not saying you should go with that...
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    1,005

    If possible, depending on time, I will disconnect...

    If possible, depending on time, I will disconnect the control wiring and turn on the disconnect the day before or at least hours to let the crankcase heater heat the oil in the compressor to get the...
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    950

    He was thinking a condensate trap. So where is...

    He was thinking a condensate trap.

    So where is the shut off valve? Unless the handle is hiding on the other side of the black iron pipe.
  8. Replies
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    2,363

    I usually do 75-100 lbs, then soap my braze...

    I usually do 75-100 lbs, then soap my braze joints. The reason being that at 200+ lbs a small leak will just blow the bubbles away and I will not see them. Once I am satisfied with no leaks, I then...
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    I use the standard of whatever the manufacturer...

    I use the standard of whatever the manufacturer states in their literature. Or at least I try to.

    But everyone has their own experience. As long as it works for you and doesn't cause problems, you...
  10. Replies
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    970

    The modulation occurs with the outdoor unit, not...

    The modulation occurs with the outdoor unit, not the indoor. So with a multi-head system you find the lowest the outdoor unit will modulate down to and match the heads to the lowest modulation of the...
  11. Replies
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    I never heard of a gas furnace needing a plate to...

    I never heard of a gas furnace needing a plate to restrict air flow on the intake. I install lots of Payne condensing gas furnaces which is the same as Carrier and have not run across this info....
  12. Thread: Bosch units

    by joemach
    Replies
    6
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    417

    I paired a 3 ton outdoor Bosch with a single...

    I paired a 3 ton outdoor Bosch with a single stage air handler and have no complaints from the customer. Seems to be keeping humidity down. He was from Arizona so, if there was high humidity I would...
  13. Are you sure the furnace is coming back on and...

    Are you sure the furnace is coming back on and not just the indoor fan?

    I have seen that happen many times.
  14. Thread: Mini split???

    by joemach
    Replies
    5
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    262

    If you don't have ducts, mi spits are the way to...

    If you don't have ducts, mi spits are the way to go. Much more efficient and makes zoning a system real easy.

    You also have more options on the type of indoor unit.
  15. Replies
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    2,363

    OK. Thanks.

    OK. Thanks.
  16. Replies
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    2,363

    Nitrogen testing

    I have had thus question for a while and never got around to ask anyone.

    On a system with a hard lockout TXV (I think that is what it is called), when putting nitrogen in a system to leak test...
  17. How do you get subcool & superheat without...

    How do you get subcool & superheat without pressures?
  18. Don't think pay/benefits should be based on years...

    Don't think pay/benefits should be based on years of experience or schooling. Should be based on competency at certain tasks.

    Like handling low voltage shorts, bad TXV, subcool/superheat.
    ...
  19. The answer you are looking for should be...

    The answer you are looking for should be contained in the install manual.
  20. Replies
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    747

    If you use Honeywell, the 800 or 900 series is...

    If you use Honeywell, the 800 or 900 series is the best. Can give you total control of your system and comfort. Even cheaper than the Nest. Just have to match the thermostat to your system and have...
  21. Thread: Weld of shame

    by joemach
    Replies
    35
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    6,964

    I do not think Shark Bite fittings are rated for...

    I do not think Shark Bite fittings are rated for HVAC. Could be wrong, though.
  22. Replies
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    What is the make & model number of the thermostat?

    What is the make & model number of the thermostat?
  23. Thread: Weld of shame

    by joemach
    Replies
    35
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    6,964

    OK. Makes sense. Guess I will have to do that...

    OK. Makes sense.

    Guess I will have to do that one day to see what it looks like.
  24. Replies
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    747

    Nest is an unreliable thermostat. It has damaged...

    Nest is an unreliable thermostat. It has damaged systems and even started fires.

    Smart vents choke the system down and cause high resistance in system and will damage your equipment.
  25. Thread: Weld of shame

    by joemach
    Replies
    35
    Views
    6,964

    What the heck is a shark fin reducer?

    What the heck is a shark fin reducer?
  26. How about scrap the board a use a couple relays?

    How about scrap the board a use a couple relays?
  27. I am near Penn State - State College, PA You...

    I am near Penn State - State College, PA

    You may have to do some shopping around for a temp agency that deals with a higher class of worker. I use Express Employment. Their headquarters is in...
  28. Have you tried temp agencies? I am in a similar...

    Have you tried temp agencies? I am in a similar boat as you, except that I do not quite have enough work for a guy full time. But what I do is hire through a temp agency. Sometimes you get lucky a...
  29. Thread: I need help!

    by joemach
    Replies
    31
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    1,153

    Maybe they will test refrigerant- maybe not. Who...

    Maybe they will test refrigerant- maybe not. Who knows how much effort they put into testing returned compressors? And is there really enough refrigerant left in there to test? I don't know.

    But I...
  30. Replies
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    So glad to hear things are going so well with...

    So glad to hear things are going so well with you. I miss having the little ones around. All grown up now and living on the other coast.

    Enjoy these times, they are the best.
  31. Thread: I need help!

    by joemach
    Replies
    31
    Views
    1,153

    How would they even know what gas was in the...

    How would they even know what gas was in the system?
  32. Replies
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    418

    2 stage equipment only comes in full tonnage. No...

    2 stage equipment only comes in full tonnage. No 1/2 ton systems.

    If you tuns the system off for a day, it will take forever to catch up.

    Your Nest is not going to save you any energy. Set the...
  33. Replies
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    1,955

    Doesn't sound like a crappy old Payne if it is...

    Doesn't sound like a crappy old Payne if it is doing what you say.

    I have put in tons of Payne units with almost no issues.
  34. Replies
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    That exhale is the defrost cycle. Pretty normal....

    That exhale is the defrost cycle. Pretty normal.

    If you have the operation manual it should explain the light issue.

    Try this link:...
  35. Replies
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    1,147

    This boils my blood. This unit could have a low...

    This boils my blood. This unit could have a low or high pressure switch open and the tech would never know it. It could be several other reasons that could be causing this. What this tech has done is...
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    Could be a faulty sensor. You need to find a tech...

    Could be a faulty sensor. You need to find a tech who will check the system over to find out what is going on.
  37. Power stealing thermostat: Power stealing is a...

    Power stealing thermostat:
    Power stealing is a way of powering a thermostat using the circuits that turn on and off your HVAC system, rather than using a dedicated power wire or a Common wire...
  38. Replies
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    1,181

    Never say a stat with an "Aux" setting. That is...

    Never say a stat with an "Aux" setting. That is something the stat does on its own.

    Also, he has natural gas back up. Would you want to run the gas furnace with the heat pump?
  39. Replies
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    1,005

    I have seen the same issue on Mitsubishi systems....

    I have seen the same issue on Mitsubishi systems. I assumed it was either refrigerant out-gassing or oil. Always longer in the winter.
  40. A new one on me. Thanks for the info. Never knew...

    A new one on me. Thanks for the info. Never knew what the inducer would run for a few seconds in cooling.
  41. Replies
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    3,511

    That stuff will clog the mini-split system up and...

    That stuff will clog the mini-split system up and it will need to be replaced. At least the outdoor unit anyway. It has no filter dryer.

    If you don't believe me, call the manufacturer.
  42. Replies
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    3,511

    NEVER use leak seal on a mini-split/ductless. You...

    NEVER use leak seal on a mini-split/ductless. You will kill it.
  43. Replies
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    328

    Irwin, The only thing I can think of is maybe...

    Irwin,

    The only thing I can think of is maybe talk with your local building department. They may have a better idea s to who would be responsible for this mistake.
  44. Replies
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    328

    If your HVAC system is 2 stage and the zone panel...

    If your HVAC system is 2 stage and the zone panel is set up correctly, you do not need a bypass damper.

    Let me try to explain why you system is shutting down:

    Let's say that your 2 zones are...
  45. I don't understand. That looks like the...

    I don't understand. That looks like the pre-charged line set. Not much else you can do the the extra.

    I did not know they made them anymore.
  46. Not all warrantee companies are bad. They offer...

    Not all warrantee companies are bad. They offer low compensation to the repairing contractor. But most guys doing home warrantee work are just starting out and want to impress how good a job they can...
  47. I think we need some solid numbers and info from...

    I think we need some solid numbers and info from the OP before we can really supply any help. Other than that we are just guessing.
    Static pressure? ESP?
    Condition of coil. Clean through & through?...
  48. There was a service alert from Carrier on those...

    There was a service alert from Carrier on those Bristol Compressors. I know at one time they were giving a credit towards a new system. But that might have been if it was still under warrantee. Not...
  49. Yes he is. But he is super human with a 100...

    Yes he is. But he is super human with a 100 terabyte hard drive of HVAC documentation.
  50. I like running my oil tank dry once a tear to run...

    I like running my oil tank dry once a tear to run the sludge out. I keep 10 gallons of diesel fuel handy to get it heating again if it runs out in dead of winter. I change filter, strainer & nozell...
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