AC diagram and spec 2002

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M123

Viking
Joined
Apr 8, 2020
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Hi.
Do anyone have diagram over how the AC on a 2002 should perform and what pressure the system work under?

I am not sure my AC work at it's fullest potential. At idle warm engine (close loop) and all exit close beside from the center and the fan at lowest speed the temperature in the outlet never goes down lower then ~7°C (44.6 degrees Fahrenheit)
It's doesn't matter what humidity or outside temperature it's measure static the same.

I wonder if it's needed top of some or are this the way the AC one this trucks are supposed to work?

Thanks.
 
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