Removal and Installation

HVAC Unit Removal and Installation

HVAC Unit Components

Removal

1) Recover refrigerant from A/C system with recovery and recycling equipment referring to "Recovery" in Service and Repair Operation Procedure for Refrigerant Charge.
2) Drain engine coolant referring to Cooling System Draining Cooling System Draining
, and then disconnect heater hoses from HVAC unit.
3) Remove cowl top cover from vehicle body referring to Service and Repair Cowl Top and Front Lower Cross Member Components.
4) Remove instrument panel from vehicle body referring to Service and Repair Instrument Panel Removal and Installation.
5) Loosen a bolt (1) and remove pipes from expansion valve (2).






6) Remove HVAC unit (1) from vehicle body by removing nuts (2).






Installation

Evaporator Inspection

Evaporator Temperature Sensor Inspection

Reverse removal procedure noting the following instructions.

- Replenish specified amount of compressor oil to compressor suction side referring to "Replenishing Compressor Oil" in Service and Repair Operation Procedure for Refrigerant Charge.
- Install the padding (1) to the installation hole uniformly.





- Evacuate and charge the A/C system referring to "Evacuation" and "Charge" in Service and Repair Operation Procedure for Refrigerant Charge.
- Refill cooling system with coolant referring to Cooling System Refilling Cooling System Refilling.
- Adjust control cables referring to HVAC Control Unit Removal and Installation HVAC Control Unit Removal and Installation. (vehicle with manual type A/C)