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  1. You can't have hot gas and liquid in the line...

    You can't have hot gas and liquid in the line together. If it was saturated meaning there is no subcooling, vapor and liquid would be in the line at the condensing temperature. Low charge would drop...
  2. I agree with Ikapigian Subcooling is the only way...

    I agree with Ikapigian Subcooling is the only way !
  3. Replies
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    F.Y.I. An electronic sight glass is a perfect...

    F.Y.I.
    An electronic sight glass is a perfect tool to verify this problem
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    With these pressures I would expect more of a...

    With these pressures I would expect more of a temperature drop across the coil. Aside from that it clearly looks like (is) a flow problem. You said that there was a negligible temperature drop across...
  5. Thread: Join RSES?

    by coolinman
    Replies
    8
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    745

    Your company name speaks for itself.

    Your company name speaks for itself.
  6. Thread: Join RSES?

    by coolinman
    Replies
    8
    Views
    745

    What is your Career worth to you. If you are...

    What is your Career worth to you.
    If you are looking at dollars and cent's. We'll hell you don't need anything. Take your cash and enjoy. R.S.E.S. is the largest Educational Organization in our...
  7. Your the one to tell us what you get. You seem to...

    Your the one to tell us what you get. You seem to have a handle on this.
    You don't beleve what the equipitment ratings are.

    Now Do you understand Power Factor as it applies to what your paying...
  8. Thread: Jug of R22

    by coolinman
    Replies
    3
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    1,004

    I have a green valve (one way) tank. Dupont R-12...

    I have a green valve (one way) tank. Dupont R-12 with a (gross) weight of around 34 Lbs. 28-29 lbs Virgin R-12. I paid around 20.00 a Lb when I Purchasted it. I would be happy with 20.00 a Lb to a...
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    1,435

    The reason I asked about Superheat is if the...

    The reason I asked about Superheat is if the valve is overfeeding the Subcooling will be low and to increase it you would be overcharging the system. You just can't use one condition when charging a...
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    1,300

    The easy way to check is with the outdoor unit...

    The easy way to check is with the outdoor unit not running check for current flow on the high voltage supplying the unit. This is not fool proof there may be a thermostat to turn it off when not need...
  11. Replies
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    1,435

    Is this a water to air heat pump. What is the...

    Is this a water to air heat pump. What is the noise you hear. Is it in the refrigerant lines. Also no mention of Superheat reading.
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    1,300

    I would check to see if there is a crankcase...

    I would check to see if there is a crankcase heater and if its working. The refrigerant should also be checked. Sounds like what is called flooded starting. If there is a long line set there may need...
  13. Throw a sightglass and pressure tap in the liquid...

    Throw a sightglass and pressure tap in the liquid line by the condensing unit. The liquid (3/8") service valve is giving low side pressure in heating so you can't tell liquid pressure. I use a...
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    Never seen that before. I would think there has...

    Never seen that before. I would think there has to be an abnormal amount of virbration to shake these parts apart. I don't believe the complete weld would break popping off the power assembly.
    Just...
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    4,906

    kefah The reason your having problems with the...

    kefah

    The reason your having problems with the new R-410A systems is due to the characteristics of the refrigerant and the outdoor temperatures your experiencing. R-410A is not designed for air...
  16. Replies
    11
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    1,330

    Did anyone bother to check all the operating...

    Did anyone bother to check all the operating conditions of the system or is this all an assumption as to what’s happening. Being this is a new unit you should have all the manufactures literature and...
  17. Replies
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    4,906

    Are you trying to say you are cooling some inside...

    Are you trying to say you are cooling some inside rooms at the plant that reach 60-70C when It's 51C outdoor. Or your trying to cool inside when it reaches 60-70C outside.
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    1,729

    I absolutely agree with allen38 on matching...

    I absolutely agree with allen38 on matching amperage and not horsepower when replacing fractional horsepower motors. N.E.M.A. standards allow a range of current flow in horsepower ratings where a...
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    1,729

    Have you checked for voltage imbalance on your 3...

    Have you checked for voltage imbalance on your 3 phase 480. I would also look for poor connections. For years I took care of a facility - 7 buildings 2500 tons of air mainly 10 ton split's mostly 480...
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    2,239

    I've had condenser leaks develop at the factory...

    I've had condenser leaks develop at the factory braze connections on the header and never got a refrigerant allowance. Got new coil but no refrigerant. Complained but did no good.
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    403

    Your lucky its not 60 or it could be raining up...

    Your lucky its not 60 or it could be raining up there. Do they leave the windows open also ????????
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    403

    Tell me this is a JOKE.

    Tell me this is a JOKE.
  23. Hey RegalPF Earning a BS in Mechanical...

    Hey RegalPF
    Earning a BS in Mechanical Engineering mentioned by FL.HVAC is the cats meow and would open many doors. With a Mechanical Engineering degree you would need the school time and also you...
  24. Replies
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    1,513

    Remember to always check your superheat and...

    Remember to always check your superheat and subcooling. You need to be sure you don't have liquid refrigerant coming back to the compressor so make sure you have superheat in the return gas line to...
  25. Thread: Sad!

    by coolinman
    Replies
    5
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    1,863

    I've never had a problem with driers. I think...

    I've never had a problem with driers. I think this for me has contributed to low callback issues and system reliability. I don't think liquid driers should be placed in series nor the wrong size be...
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