Refrigerant Identification / Testing

The refrigerant used in this refrigerant system is R-134a. R-134a refrigerant is the only type that can be used in the A/C system.

NOTE: R-134a requires use of PAG Compressor Oil F7AZ-19589-DA or Motorcraft YN-12c or equivalent meeting Ford specification WSH-M1C231-B.

R-134a systems can be identified by examining the following areas:
- Vehicle's refrigerant charge tag indicates R-134a service.
- High and low service charge ports require quick connect adapters to preclude use of R-12 service equipment.

SPECIAL SERVICE EQUIPMENT

CAUTION: Do not use R-12 Special Tools and Equipment when servicing R-134a systems. Also, do not use R-134a Special Tools and Equipment when servicing R-12 systems. Doing so may cause damage to the A/C system. Refer to the Rotunda Equipment Catalog for more information on R-134a Special Servicing Equipment.

- Rotunda R-134a Refrigerant Center 176-00003 or equivalent
- Rotunda R-134a Center 023-00105 or equivalent
- Rotunda R-134a Automatic Calibration Halogen Leak Detector 023-R1003 or equivalent
- Rotunda R-134a Manifold Gauge Set 176-R032A or equivalent
- Rotunda R-134a Low-Side Quick Disconnect 176-R0036 or equivalent
- Rotunda R-134a High-Side Quick Disconnect 176-R0037 or equivalent
- Rotunda 1.2 CFM Vacuum Pump 023-RO162 or equivalent
- Rotunda 4 CFM Vacuum Pump 023-RO163 or equivalent

Test equipment must be connected to the refrigerant system in order to make system tests. If a charging station is used, follow the instructions provided by the station manufacturer.







REFRIGERANT IDENTIFICATION
Prior to recovering or charging the refrigerant from any vehicle, you must use a refrigerant identifier such as Rotunda A/C Refrigerant Analyzer 198-00001 or equivalent. The refrigerant identifier is used to identify gas samples taken directly from the refrigeration system or storage containers. The identifier will display:
- either "R-12" or "R-134a" if the purity is better than 98% by weight.
- "FAIL" if neither of the two gases have been identified or if they are not at least 98% pure.
- "HC" and a horn will sound if the gas detected contains a hydrocarbon (flammable material).

After analysis is made and displayed, the identifier purges the unit of the sampled refrigerant gas and is ready for the next sample.

It neither R-12 nor R-134a has been identified as 98% pure, do not service the A/C refrigeration system. Always refer to the refrigerant identifier manufacturer's instructions for proper tool usage.