Operation CHARM
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Dodge or Ram Truck
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1999
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RAM 3500 Van V8-5.9L VIN Z LDC
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Repair and Diagnosis
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Specifications
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Pressure, Vacuum and Temperature Specifications
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Refrigerant Pressure Sensor / Switch, HVAC
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System Specifications
System Specifications
A/C PRESSURE SWITCHES
Low Pressure Control (suction line mounted)
opens
< 12 - 19 psi
resets
> 30 psi
High Pressure Control (discharge line mounted)
opens
> 450 - 490 psi
resets
< 270 - 330 psi