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Home >> Buick >> 1973 >> Centurion 2D Convertible >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Temperature Control >> Operation >> Control Head Selector Lever >> Lo

Control Head Selector Lever: Lo

The system will come on immediately if in-car temperature is 80°F or above or will be delayed until engine coolant temperature reaches 140°F. Blower will operate at fixed low blower speed and conditioned air will be delivered through air conditioning outlets, heater outlets or both (bi-level operation). Compressor will operate and air will be cooled or heated as required by position of temperature dial.

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