R-1234YF Recovery Procedure - EMEA
Review the safety precautions and warnings in this information before performing this procedure. Failure to follow these instructions may result in serious or fatal injury.
Various aftermarket manufacturers produce A/C system sealants that are designed to stop A/C refrigerant system leaks. The use of A/C system sealants may result in damage to A/C refrigerant recovery/evacuation/recharging equipment or the vehicle A/C system and are not recommended for use by FCA US LLC.
A small amount of refrigerant oil is removed from the A/C system each time the refrigerant system is recovered and evacuated. Before charging the A/C system, you MUST replenish any oil lost during the recovery process. See the equipment manufacturer instructions for more information.
- If use of aftermarket A/C system sealant is suspected, the A/C system should be tested for sealant prior to refrigerant system recovery. See the operating instructions supplied by the equipment manufacturer for proper use and care of this equipment.
- Connect an R-1234yf refrigerant recovery/recycling/charging station (1) that meets SAE standard J2843 to the refrigerant system.
- Run the engine with air conditioner engaged for 10-15 minutes.
- Depending on the type of engine in the vehicle, move or remove any parts that obstruct connecting of the recovery, evacuation, charging station (1a), to the corresponding charging valve (1b) and (1c) of the air conditioning.
- Remove the caps from the service ports (1b and 1c).
- Connect the high pressure hose (HIGH) of the equipment corresponding to the high pressure quick coupler service port (1b).NOTE:
To engage the fittings (3a) on the quick coupler valves, you need to pull up the knurled fitting (3b). After connecting, tighten the locking cap (3c).
- Connect the low pressure hose (LOW) to the low pressure quick coupler service port (1c).NOTE:
For added security, the quick coupler fittings (3a) of the hoses connecting the equipment are of different diameters: high pressure side is larger than the low pressure side and low pressure side is smaller than the high pressure side.
- Recover the A/C refrigerant system following the operating instructions supplied by the recovery/recycling/charging station manufacturer.
- During the emptying of the system, the compressor oil extract accumulates in an appropriate container.NOTE:
The oil is highly hygroscopic: avoid leaving open containers.
- Refill the system with new oil in the same amount as indicated on the container.NOTE:
In case of replacement of some components, it is necessary to add, for each of the replaced parts, the following amounts of oil:
- A/C Lines, 5 cm3/m
- Evaporator, 40 cm3
- Condenser with integrated filter, 50 cm3
In case of accidental breakage which causes "quick emptying of the system (in less than 5 minutes), it is not possible to determine the exact amount of oil loss since the high fluid pressures can cause" entrainment ". In this case, begin with an initial amount of 50 cm3.