Proper 134a Charge amount?

[jasonran]

Hey guys, anyone know the proper low side pressure for the A/C system? What charge level indicates a "full" charge?

 

[techno]

I do!
0.15 - 0.25 MPa (1.5 - 2.5 kgf/cm2)

 

[jasonran]

Thanks! How does that convert with the typical pressure meter that measures whole numbers-? For example, with the system on high, my measurement shows 32 (lbs?). Is that the right pressure?

 

[techno]

The low pressure side translates into 22 - 36 psi.

The high pressure side should be 199 - 227 psi.

The test conditions should at 86 - 95

 

[jasonran]

Thanks a million!