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Thread: txv v.s. fixed

  1. #66
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    I agree with the premise that orifices last. This is true TXVs last also so this is not even an argument as far as I am concerned. Air conditioning systems have a very low change in temp in the conditioned space. My idea is why use a txv in this situation? It is not needed. Something to go wrong. A refrigeration box rnges from od temp to maybe 20 below. evap temps vary

  2. #67
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    I was being sarcastic trying to get people to think. There are applications for both

  3. #68
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    For example If you have a varying heat load a txv would be usefull

  4. #69
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    If the load varified will always be the same then a piston will do

  5. #70
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    Can't argue with me on this I am right

  6. #71
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    That is why so many get pissed at me.

  7. #72
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    Originally posted by driftamile
    Can't argue with me on this I am right
    Sure I can, your wrong.
    Actually the load varies quite a bit for A/C, about 30* outside, and inside if you don't condition the space.
    If a walk-in is set at 38* does it change more than a house thermostat set at 74*?
    And A/C you have varying latent load. This is a Txv's real benefit for A/C.

  8. #73
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    Originally posted by driftamile
    That is why so many get pissed at me.
    Might be because you have trouble forming paragraph's, therefore the multiple single sentence posts.

  9. #74
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    Originally posted by rsmith46
    Originally posted by driftamile
    That is why so many get pissed at me.
    Might be because you have trouble forming paragraph's, therefore the multiple single sentence posts.
    That's what I was thinking, or 30 posts on one topic,or 1 per sentence, trying to compete with our beloved OSR.
    If everything was always done "by the book"....the book would never change.

  10. #75
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    driftamile
    Professional Member

    Registered: Jul 2004
    Posts: 1275

    1275 Posts that most be on what 5 threads?
    __________________________________________________ _______________________
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  11. #76
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    Originally posted by rsmith46
    Originally posted by driftamile
    Can't argue with me on this I am right
    Sure I can, your wrong.
    Actually the load varies quite a bit for A/C, about 30* outside, and inside if you don't condition the space.
    If a walk-in is set at 38* does it change more than a house thermostat set at 74*?
    And A/C you have varying latent load. This is a Txv's real benefit for A/C.
    The load is the temperature of the air across the evaporator coil. In cooling mode, the load remains relatively the same after the initial temperature is achieved.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  12. #77
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    Originally posted by RoBoTeq
    Originally posted by rsmith46
    Originally posted by driftamile
    Can't argue with me on this I am right
    Sure I can, your wrong.
    Actually the load varies quite a bit for A/C, about 30* outside, and inside if you don't condition the space.
    If a walk-in is set at 38* does it change more than a house thermostat set at 74*?
    And A/C you have varying latent load. This is a Txv's real benefit for A/C.
    The load is the temperature of the air across the evaporator coil. In cooling mode, the load remains relatively the same after the initial temperature is achieved.
    Doesn't the load or temperature of the air across the evaporator of a walk-in remain relatively the same? This reasoning for using a fixed orifice makes no sense.

  13. #78
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    Originally posted by rsmith46
    Originally posted by RoBoTeq
    Originally posted by rsmith46
    Originally posted by driftamile
    Can't argue with me on this I am right
    Sure I can, your wrong.
    Actually the load varies quite a bit for A/C, about 30* outside, and inside if you don't condition the space.
    If a walk-in is set at 38* does it change more than a house thermostat set at 74*?
    And A/C you have varying latent load. This is a Txv's real benefit for A/C.
    The load is the temperature of the air across the evaporator coil. In cooling mode, the load remains relatively the same after the initial temperature is achieved.
    Doesn't the load or temperature of the air across the evaporator of a walk-in remain relatively the same? This reasoning for using a fixed orifice makes no sense.
    Is this the commercial refrigeration section?
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


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