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Pressures should run approximately 69 psg on suction and head may vary between 225 and 250.The 69psig converts to a 40 degree coil.
Note from image below, 69psig is ideal with a 40 degree coil. Coil will start icing at about 55psig as that converts to a 32 degree coil.
(Note the green scale on gauge shows coil temperature)
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