Operation CHARM
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Mercury
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1994
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Sable V6-182 3.0L
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Repair and Diagnosis
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Sensors and Switches
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Sensors and Switches - HVAC
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Refrigerant Pressure Sensor / Switch
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Description and Operation
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A/C Pressure Switch
A/C Pressure Switch
PURPOSE
Operates the high speed electro-drive fan from 1000 RPM, with the refrigerant pressure below 150 psi, to 1800 RPM, with the refrigerant pressure over 250 psi.