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Home >> Chevrolet >> 1971 >> Chevelle Base, 2D Convertible, 5.7L Eng, Not Available Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Temperature Control >> Description >> Other Control Units >> Lo Relay

Lo Relay

Mounted on side of evaporator housing. Relay will be energized whenever selector control head in "Vent" or "De-Ice" or whenever Engine Thermal Switch or A./C Override Switch is closed. This will allow blower motor to operate at low blower speed.

NOTE: Relay may be energized whenever ignition switch is "On" with selector control head in "Off" position.
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