Automatic Climate Control 1964 to 1968

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The basics of the system are that the temperature sensors and the temperature dial provide an input to the amplifier which in turn sends an electrical signal to the transducer. The transducer varies the vacuum signal to the power servo.

The power servo controls the blower speed; switches the various vacuum signals and positions the temperature door.

All the air that flows through the system goes through the A/C evaporator and is cooled to the max. The air then goes through the heater core or bypasses the core and the temperature door controls how much air bypasses the heater core and how much is reheated.

No vacuum on the power servo puts the system in max A/C and a high vacuum puts it into max heat. I do not recommend you put full engine vacuum on the power servo because that might damage an otherwise good diaphragm.

Created by admin. Last Modification: Monday 30 of November, 2009 23:48:29 MST by admin.

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