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Home >> Chevrolet >> 1971 >> Chevelle Base, Not Available, 5.7L Eng, Not Available Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Temperature Control >> Operation >> Control Head Selector Lever >> Off

Control Head Selector Lever: Off

The system will come on as soon as the engine coolant temperature reaches 120°F or the in-car temperature reaches 80°F. Blower will then operate at fixed lower blower speed and conditioned air will flow through heater outlets (air will be heated if called for by selector dial setting; however, compressor will not operate to provide cooling).

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