Housing Assembly HVAC: Service and Repair

HVAC Unit Removal And Installation

Removal
1. Recover refrigerant from A/C system referring to "Recovery "in Operation Procedure for Refrigerant Charge.
2. Drain engine coolant.
3. Remove hose bands (1), and then disconnect heater hoses (2) from HVAC unit.
4. Remove liquid pipe bolt (3), and then disconnect suction hose (4) and liquid pipe (5) from expansion valve (6).






5. Remove right side cowl top garnish.
6. Remove nuts (1).






7. Remove center console box.
8. Remove instrument panel with steering support member.
9. Remove nut (1) and rear duct (2), and then remove HVAC unit (3).






Installation
Reverse removal procedure noting the following points.
- Install drain hose (1) so that the arrow mark (2) is positioned toward the vehicle forward.






- Apply specified compressor oil to new O-ring.

: Compressor oil 99000-99022-00E (Compressor oil (DH-PS, 250cc))

- Tighten liquid pipe bolt to specified torque.

Tightening torque
Liquid pipe bolt: 12 N.m (1.2 kg-m, 9.0 lbf-ft)

- Tighten HVAC unit nut.

Tightening torque
HVAC unit nut: 10 N.m (1.0 kg-m, 7.5 lbf-ft)

- Evacuate and charge A/C system referring to "Evacuation" and "Charge" in Operation Procedure for Refrigerant Charge.
- Refill cooling system with coolant.