Section 40 (Manual HVAC Systems - F150): Description
WARNING: This page is about a different car, the 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For description and operation information not covered in this article, see DESCRIPTION & OPERATION
in HEATER SYSTEMS article.
The A/C-heater system is a blend-air type, consisting of a control panel, compressor and clutch, blower motor, evaporator core, condenser core, accumulator-drier and plenum assembly. System is controlled by a clutch cycling pressure switch and a A/C high pressure cut-off switch. Vehicles equipped with 4R70W transmissions are equipped with Compressor Anti-Slugging Strategy (CASS). CASS is designed to alleviate damage to compressor in case of liquid refrigerant accumulation in compressor.
Blower motor is located in plenum assembly, under instrument panel. Plenum assembly contains evaporator core, heater core, floor/defrost door, panel/defrost door and electric motor actuated temperature blend door.