Accumulator HVAC: Service and Repair

Air Conditioning Accumulator Replacement

Removal Procedure





Caution:
Refer to Battery Disconnect Caution Battery Disconnect Caution.

1. Disconnect the negative battery cable.

2. Discharge and recover the refrigerant. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.

3. Remove the high-pressure pipe-to-receiver-dryer connecting block nut and remove the pipe from the receiver-dryer.

4. Remove the receiver-dryer-to-condenser pipe nut.





5. Loosen the bolt that secures the receiver-dryer band clamp.

Important:
Hold the receiver-dryer-to-condenser pipe to support it so that the pipe is not damaged while being removed from the receiver-dryer.


6. Remove the receiver-dryer by sliding it up and out of the band clamp.

7. Cap all open connections to prevent contamination.

8. Drain the oil from the receiver-dryer into a graduated container. Record the amount of oil drained.

9. Discard the used oil.

Installation Procedure





Important:
Do not uncap the new receiver-dryer until just prior to installation.


1. Add the new oil to the new receiver-dryer. Use the exact amount of oil that you drained from the old receiver-dryer.

2. Install new O-rings onto the 2 pipes that connect to the receiver-dryer.

3. Install the receiver-dryer into the band clamp. Support the receiver-dryer-to-condenser pipe while pushing the receiver-dryer upward until the pipe is fully installed.

Notice:
Refer to Fastener Notice Fastener Notice.

4. Tighten the bolt on the band clamp.

Tighten the band clamp bolt to 5 Nm (44 lb in).





5. Install the high-pressure pipe into the receiver-dryer.

6. Install the high-pressure pipe-to-receiver-dryer connecting block nut.

* Tighten the high-pressure pipe-to-receiver-dryer connecting block nut to 10 Nm (89 lb in).

* Tighten the receiver-dryer-to-condenser pipe nut to 14 Nm (10 lb ft).

7. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.