General Procedures - Refrigerant Identification Test

Activation

1. 1
   Follow the instructions supplied with the refrigerant identifier equipment to obtain a sample for testing. For the proper refrigerant analyzer,
   Refer to: Climate Control Tools and Equipment (412-00 Climate Control System - General Information, General Procedures).
2. 2
   • If the purity of R-134a or R-1234yf is 98% or higher by weight, the green PASS LED illuminates. Mass concentrations of R-1234yf, R-134a, R-12, R-22, hydrocarbons and air will be shown on the digital display.

   • If the R-134a or R-1234yf refrigerant does not meet 98% purity, the red FAIL LED illuminates and an alarm sounds to warn the user of a potential hazard. The mass concentrations of R-1234yf, R-134a, R-12, R-22 and hydrocarbons will be shown on the digital display.

   • If the hydrocarbon concentration is 2% or more by weight, the red FAIL LED illuminates, the digital display shows High Hydrocarbon Content, and an alarm sounds to warn the user of a potential hazard. The mass concentrations of R-1234yf, R-134a, R-12, R-22 and hydrocarbons will also be shown on the digital display.
3. 3
   The percentage of air in the sample will be displayed if the R-134a or R-1234yf content is 98% or more. The refrigerant identifier excludes air when determining the refrigerant sample content because air is not considered a contaminant, although air may affect A/C system performance. When the refrigerant identifier determines that the refrigerant source is clean (R-134a or R-1234yf is 98% or higher by weight) and air concentration levels are 2% or more by weight, it will advise the user whether an air purge is required.
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 with R-134a or R-1234yf recovery/recycling equipment. Recovering contaminated refrigerant will contaminate the refrigerant recovery/recycling equipment 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
   Follow the A/C system flushing procedure.
   Refer to: A/C System Flushing (412-00 Climate Control System - General Information, General Procedures).
8. 8
   Dispose of the contaminated refrigerant in accordance with all federal, state and local regulations.