A/C fill point

[sprokit]

Can anyone tell me which one of the two points is the re-charge on the aircon?
The refill can says the low pressure pipe large diameter, but on mine the larger of the
two pipes fill cap has the letter H on it and the smaller pipe has the letter L.

Thanks

 

[Deleted account DD]

This is the fill

:thumb2

 

[sprokit]

Thanks Daved