Rear A/C-Heater
REAR HEATER AND AIR CONDITIONERAn optional rear heater and air conditioner unit is available on 127 inch wheelbase and extended 127 inch wheelbase models with the optional front air conditioner, and operates in conjunction with the front heater and air conditioner. This unit consists of a blower motor, a thermal expansion valve, a cable actuated rear water valve, a combination coil unit, and an electronic rear mode control actuator motor that operates a rear heat-A/C mode door and the rear water valve. The rear heater and air conditioner unit is contained in a housing mounted to the floor panel in the passenger compartment between the fuel filler inlet housing and the rear wheel housing near the left rear side panel. A trim cover is mounted to the unit.
The rear heater and air conditioner unit recirculates and conditions the air in the vehicle. The electronic rear mode control motor operates the heat-A/C mode door in unison with the rear water valve. This ensures that when the unit is in the heat mode (water valve is open), the conditioned air is directed through a horizontal duct to outlets in the left side panel lower trim; and, when the unit is in the A/C mode (water valve is closed), the conditioned air is directed through a vertical duct to an overhead duct and outlets integrated into the rear headliner.
The rear heater plumbing is connected to the front heater plumbing; and the rear air conditioner plumbing is connected to the front air conditioner plumbing. A thermal expansion valve on the rear heater and air conditioner unit controls refrigerant flow to the combination coil.