SPARK PLUG COLD BU OUTSIDE AIR FILTER f NOZZLE EXHAUS DRAIN 1 T COMBUSTION BLOWER P IGNITION UNIT BASE F BREAKER POINTS FROM COMB USTION AIR Fig 1 1 2 N a flow of fuel to the combustion chamber in the event of any interruption of the electrical supply to the combustion blower The relay is mounted on the top half of the heater case just above the ignition coil Heater Control Switch The heater control Fan switch is installed on the right side of the air distributor and is actuated by a air shutoff door to the ventilator blower The door is provided to shut off outside ram air when the heater is not in use The heater control switch is connected to the door through a lever arm This arrangement insures that the air door will be open whenever the heater is used The switch controls the speed of the ventilating air blower and also provides power to the heater thermostat which in turn controls heater operation Ventilator Blower The ventilating air blower is mounted on the heater case and pulls air in through the cowl vent and across the heat exchanger blowing it into the air distributor The blower system permits selection of high or low volume air Combustion Blower The combustion air blower is designed to provide the proper amount of air for combustion of the gasoline which is admitted to the burner IGNITION COIL 1 HEAT EXCHANGER RNER VENTILATOR BLOWER HOT AIR r AIR DISTRIBUTOR T I J TO CAR INTERIOR HERMOSTAT OVERFLOW TO GAS TANK 1 RESSURE TO BURNER EGULATOR GAS TANK TO CARBURETOR ENGINE FUEL PUMP Ing System Schematic through the nozzle The blower itself is mounted on the right fender skirt inside the baggage compartment The breaker points are attached to the end of the motor and are actuated by the cycling of a two lobed cam which is fitted over an extended shaft of this motor Distributor and Defroster Components An air distributor is mounted to the interior of the car at the dash panel below the plenum chamber and serves to direct air received from the ventilating air blower either directly to the car interior through an opening at the floor area or through defroster openings hoses and outlets to the windshield area A control cable operated door in the distributor proportions the amount of air directed to windshield or floor areas The distributor contains the thermostat which regulates the output of the heater and the heater control Fan switch which controls the ventilation blower speed and provides power to the heater system Control Assembly The heater control assembly is mounted to the lower flange of instrument panel at center of panel without CORVAIR SHOP MANUAL