Heating and ventilation system - description

The heater is of the type which utilises waste heat from the engine coolant. The coolant is pumped through the matrix in the heater casing where air, force-fed by a duplex radial fan, disperses the heat into the vehicle interior.

Fresh air enters the heater or the ventilator ducts through the grille at the rear of the bonnet lid. Air is extracted from the interior of the vehicle through outlets at the rear edges of the doors.

There are differences between the heater used on Base models and other versions in the Escort range. On Base models, a twospeed fan switch is used instead of the threeposition switch used on other versions. On all models except the Base version, central and side window vents are incorporated in the facia panel.

The heater/ventilator controls are of lever type or rotary type on later models, operating through cables to flap valves which deflect the air flowing through the heater both to vary the temperature and to distribute the air between the footwell and demister outlets.

    See also:

    Weber 2V carburettor automatic choke unit - adjustment
    XR3 models 1 Remove the air cleaner as described in Section 2. 2 Disconnect the electrical lead to the automatic choke. 3 Unscrew and remove the three screws which hold the automatic choke housi ...

    Cargo area (P100 models) - removal and refitting
    Note: A suitable lifting crane and tackle will be required for this operation. Removal 1 Disconnect the battery negative lead. 2 Remove the fuel filler cap, then drain the fuel tank. 3 Remove th ...

    Cooling, heating and air conditioning systems
    General information and precautions General information The cooling system is of pressurised type, and consists of a front mounted radiator, coolant pump, cooling fan, wax type thermostat, and an ...