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How To Check AC Freon Refrigerant Level R-22 Or R-407C
https://losangeles.airconditioning.org/
The unit checked was an old R22 Ruud System. Blue side should read between 7075psi. & red side should read between 235 275psi. Keep in mind the temperature of the space being cooled was already 69°F so you suction or blue side gauge can be a little bit lower in the 65psi range.
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