A/C pressure specs

[RatLabGuy]

Does anybody know, or know where to find, the target pressure specs for the Mazda5 A/C?

Our '10 isn't quite as cold as it used to be, and there is a notable difference between when it is idling, and running down the road at a higher RPM, at least on a really hot day.
My manifold gauges tell me ~27 psi on the low side and 175 on the high side. To me this seems a little low but not awful, w/ other cars I'm used to the high side being > 200psi though.

Can't seem to find this anywhere, or a link to an FSM page that has the specs.

 

[loosenut]

Below pressure specs are done with rpm at 1500 and a/c set to max/recirculate.

 

[RatLabGuy]

Great, thanks.
Did not know you had to rev up to 1500 RPMs. I see how that'd be important b/c it sets the rate for the compressor. I was just at idle, probably 750ish. Will have to try again later.

Looks like on the low side I'm pretty close to spec though.