Receiver/Dryer, Replacing Without The Need For Cleaning Refrigerant Circuit
There is usually a dryer cartridge or a desiccant bag installed in the receiver/dryer (depending on the design of the refrigerant circuit). Refer to Refrigerant Circuit (vehicle-specific service information) and APPROVED REFRIGERANT OILS AND REFRIGERANT OIL CAPACITIES (vehicle-specific service information).
- Pay attention to the general information for replacing components. Refer to GENERAL INFORMATION FOR REPLACING COMPONENTS .
Cleaning the refrigerant circuit means flushing with refrigerant R1234yf. Refer to REFRIGERANT CIRCUIT, CLEANING .
- For example, no escape of refrigerant and no ingress of moisture and dirt into circuit.
- If it is determined at a gas analysis that contaminated refrigerant was in the circuit but there is no concern about the A/C system function. Refer to REFRIGERANT GAS ANALYSIS, PERFORMING .
-- Discharge the refrigerant circuit. Refer to WORKING WITH A/C SERVICE STATION .
-- Remove the receiver/dryer. Refer to Refrigerant Circuit (vehicle-specific service information).
-- Remove the dirt from the receiver/dryer.
-- Weigh the removed receiver/dryer.
-- Add refrigerant oil to the new receiver/dryer until it is the same weight as the receiver/dryer that was removed.
-- Install the new receiver/dryer. Refer to Refrigerant Circuit (vehicle-specific service information).
-- Assemble, evacuate and fill the refrigerant circuit. Refer to WORKING WITH A/C SERVICE STATION .