A/C Diagnosis Chart from Sanden

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stamp11127

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This should help out:

https://www.sanden.com/objects/SANDEN_SYSTEM_DIAGNOSIS_CHART.pdf

This is for a txv system with the old style bulb. Principle is the same for an orifice tube system except that the drier is replaced with an accumulator after the evap. The orifice tube will be located after the condenser.
This also doesn't work if you have added sealer during a recharge.
 
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