Refrigerant Identification Tests. General Procedures

Special Service Tools / General Equipment

Refrigerant Identification Equipment

Activation

1. 1
   Follow the instructions supplied with the refrigerant identification equipment to obtain a test sample.
   

   • 198-RI2012yfp A/C Refrigerant Analyzer for use with R134a and R1234yf vehicles
     Use general equipment: refrigerant identification equipment
2. 2
   • If the R-134a purity level is 98% or higher by weight, the green PASS LED will illuminate. Weight concentrations of R-134a, R-12, R-22, hydrocarbons and air will be displayed on the digital display.

   • If the R-134a refrigerant does not meet the 98% purity level, the red FAIL LED will illuminate and an alarm will sound, warning the user of a potential hazard. Weight concentrations of R-134a, R-12, R-22 and hydrocarbons will be displayed on the digital display.

   • If the hydrocarbon concentration is 2% or more by weight, the red FAIL LED will illuminate, the digital display will show "High Hydrocarbon Content" and an alarm will sound, warning the user of a potential hazard. Weight concentrations of R-134a, R-12, R-22 and hydrocarbons will also be displayed on the digital display.
3. 3
   The percentage of air contained in the sample is displayed if the R-134a content is 98% or more. The refrigerant identifier excludes the effect of air when determining the refrigerant content of the sample, because air is not considered a contaminant, although air may affect air conditioning system performance. When the refrigerant identifier has determined that the refrigerant source is clean (R-134a is 98% or more by weight) and the air concentration is 2% or more by weight, it prompts the user whether purging air is desired.
4. 4
   If contaminated refrigerant is detected, repeat the Refrigerant Identification Test to confirm that the refrigerant is actually contaminated.
5. 5

   NOTICE: If contaminated refrigerant is detected, do NOT recover the refrigerant into R-134a recovery/recycling equipment. Recovering contaminated refrigerant contaminates the recovered refrigerant supply and may damage the recovery/recycling equipment.

   Recover the contaminated refrigerant using suitable recovery-only equipment designed to capture and store contaminated refrigerant only.
6. 6
   Determine and correct the cause of the customer's original concern.
7. 7
   Refer to the Air Conditioning (A/C) System Flushing procedure in Group 412.
8. 8
   Dispose of the contaminated refrigerant in accordance with all federal, state and local regulations.