Ford Freestar, Monterey 2004-2006

Refrigerant Identification Testing

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NOTE
This procedure requires the use of Refrigerant Identifier with Air Radicator 198-00003 or equivalent.


NOTE
An A/C refrigerant analyzer must be used to identify gas samples taken directly from the refrigeration system or storage containers prior to recovering or charging the refrigerant system. Follow the instructions included with the refrigerant identifier to obtain the sample for testing.

  1. The diagnostic tool will display one of the following: If the purity level of R-134a is 98% or greater by weight, the green "PASS" light emitting diode (LED) will light. The weight concentrations of R-134a, R-12, R-22, hydrocarbons, and air will be displayed on the digital display.
    1. If refrigerant R-134a does not meet the 98% purity level, the red "FAIL" LED will light and an alarm will sound alerting the user of potential hazards. The weight concentrations of R-134a, R-12, R-22, and hydrocarbons will be displayed on the digital display.
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    3. If hydrocarbon concentrations are 2% or greater by weight, the red "FAIL" LED will light, "Hydrocarbon High" will be displayed on the digital display, and an alarm will sound alerting the user of potential hazards. The weight concentrations of R-134a, R-12, R-22, and hydrocarbons will also be displayed on the digital display.
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  3. The percentage of air contained in the sample will be displayed if the R-134a content is 98% or greater. The diagnostic tool eliminates the effect of air when determining the refrigerant sample content because air is not considered a contaminant, although air can affect A/C system performance. When the diagnostic tool has determined that a refrigerant source is pure (R-134a is 98% or greater by weight) and air concentration levels are 2% or greater by weight, the diagnostic tool will prompt the user if an air purge is desired.
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  5. If contaminated refrigerant is detected, repeat the refrigerant identification test to verify that the refrigerant is indeed contaminated.
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