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Orfice tube size and color?

Discussion in 'A/C & Heater systems - HVAC' started by D M Dickson, August 31, 2007.

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  1. D M Dickson

    D M Dickson New Member

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    City, State:
    N. Charleston South Carolina
    Year, Model & Trim Level:
    91 Explorer 2 WD
    When converting an R-12 system to a 134A it appears that different size and colors of the orfice tube are available, what seems to work the best for a conversion on a stock 91' Exp? Thx for any help.
     
    D M Dickson, August 31, 2007 Top of Page
    #1

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  3. ma96782

    ma96782 Well-Known Member

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    And Notes About the Re-Charge...........
    Aloha, Mark
     
    ma96782, August 31, 2007 Top of Page
    #2
  4. D M Dickson

    D M Dickson New Member

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    City, State:
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    Year, Model & Trim Level:
    91 Explorer 2 WD
    Thx for the graphs and info, the blue orfice tube may be the way to go for the 134, i'll give it a try and find out how it works.
     
    D M Dickson, September 1, 2007 Top of Page
    #3
  5. torchroadster

    torchroadster New Member

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    City, State:
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    Year, Model & Trim Level:
    '93 XLT 2WD, 5 spd
    I just did an R-12 to R-134 conversion on my '93. I went from a red orifice tube to a blue one. The results are very good. The outlet airtemperature is in the high 30 to low 40 degree range.
     
    torchroadster, September 17, 2007 Top of Page
    #4
  6. TumblingDice27

    TumblingDice27 New Member

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    Aren’t they different colors merely to represent the actual climate temperature range perimeters for the automobile’s permanent place of most use or point of destination? Between ( X low to Z high ) temp range as in, the blue is colder part of states, and red represents warmer? Similar to the thermostats installed when the car is manufactured will not be distributed the same for every car, but rather different depending on the part of the globe it is going to be used most.
     
    TumblingDice27, August 9, 2019 Top of Page
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