R134a pressure question

[Unilevers]

is that running at 1000 rpm on max cold?

Ideally you want 15-20 psi low side and 150 ish high side while running at 1000RPM max cool. If you let it sit and equalize it will be very close if you take whatever temp it is outside in Fahrenheit and thats what you pressures should equalize too.

Excessive low side means overcharge, low low side means undercharge or a plugged orifice tube or Expansion valve. High high side means overcharge, or the fan/cutout isnt working, or the condenser is blocked. Low high side means undercharge, too much cooling, or a stuck expansion valve.