Search Results - HVAC-Talk: Heating, Air & Refrigeration Discussion

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Type: Posts; User: doug112959

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  1. Replies
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    Techs working hours???????

    I recently switched jobs from building maintenance to service tech for hvac company. The thing is, after I finish the last job of the day I receive no pay for travel time back to the shop . I do not...
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    3,725

    Suction line icing at compressor

    New Carrier a/c system with txv metering device has suction line icing at compressor. (acts like it's hunting) Any thoughts?? Should txv on a new system have to be adjusted?
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    3,802

    Brazing without nitrogen again

    The company I work for has been informed by an employee of a contractor that we are using to install a/c units that they are NOT using nitrogen while brazing. The owner assured us that they...
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    They are discharge mufflers. Keeps the...

    They are discharge mufflers. Keeps the refrigerant pulsating sound from the scroll to a minimum ...correct? :o
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    I replaced a scroll compressor on a newer carrier...

    I replaced a scroll compressor on a newer carrier heat pump and it had a filter/drier between the compressor and reversing valve on discharge line. It also had a field installed filter/drier outside...
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    This is why I enjoy this forum so much. There is...

    This is why I enjoy this forum so much. There is so much to learn. I was always instructed to pull and maintain a minimum of 500 microns to assure a dry system, and to be careful not to pull down to...
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    OOP'S...Duct :D

    OOP'S...Duct :D
  8. Replies
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    Probably used good old American steel and other...

    Probably used good old American steel and other American made products to make the units back then. Big business may have designed value for the customer into the units back then:). Today we all know...
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    If you google search "package unit" you should...

    If you google search "package unit" you should find plenty of info and choices.
    I have seen dual fuel system but they are kinda pricey. What your describing does not sound like one to me. Heat...
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    I really don't think the time to cool down heated...

    I really don't think the time to cool down heated copper efects the trash level from brazing without nitrogen. I always use nitrogen. Its a very important tool. I always use a micron guage and my...
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    20,075

    Filter drier

    I have never used a filter or a drier (One or the other). I have only used a filter/drier (One unit).
  12. Replies
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    I figured my statement would get a response. I...

    I figured my statement would get a response. I was just saying that aftey I repair a system I make sure my vacuum will HOLD below 500 microns and therefor the machine is DRY and without a leak....
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    Another mystery for me

    I replaced a compressor on a practically new (about 2 years old) carrier heat pump recently. I found it strange (to me anyway) that this unit had 2 filter driers installed on the liquid line. It...
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    Amen brother

    Amen brother
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    215
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    I agree with you that anything other than...

    I agree with you that anything other than refrigerant and oil (sometimes treatment) is bad for the unit. I don't need a drier, just a filter, but filter driers are one unit so it gets both. I always...
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    215
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    20,075

    The flakes are from contaminants in the air....

    The flakes are from contaminants in the air. Nitrogen displaces the air.
  17. Replies
    215
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    20,075

    I just replaced a 2.5 ton scroll compressor on a...

    I just replaced a 2.5 ton scroll compressor on a 2 year old carrier unit this guy installed. This time I used nitrogen, maintained a vacuum of 500 microns, charged by weight and fine tune with...
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    714

    Indeed.....Indeed::D

    Indeed.....Indeed::D
  19. Replies
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    714

    Your so right. I really meant to say THANKS for...

    Your so right. I really meant to say THANKS for all the valuable advise that I have received from you guy's at no charge.
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    714

    What a bargain

    All this valuable advise and its FREE.
    THANKS
  21. Replies
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    Pots and pans.....A CO connection?

    Correct me if I am wrong. When burning fuel, the nitrogen and carbon mixed with oxygen and burns. The nitrogen burns quicker than the carbon. The carbon has to make it to the outside of the flame...
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    Brazing without nitrogen

    Contractor's putting in 98 new Carrier high efficiency heat and air systems on a property of a housing complex I work for. When asked, in general conversation about using nitrogen while brazing, he...
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    Thank you for your advice.......knowledge.

    Thank you for your advice.......knowledge.
  24. Replies
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    Thanks BigJon. I am going to do just that...

    Thanks BigJon.
    I am going to do just that (apply for membership). Its obvious that I can learn a lot here.
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    Adjusting charge on heat pump

    Would someone tell me the best way to adjust r-22 charge on heat pump while in heating mode. (winter)
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