Question about Weather King 12AJA3601AH Air Conditioner

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Low charge? weatherking 14.5 seer, r-410, low side 135#, highside 255#, 85 deg. ambient temp, liquid line temp around 84 deg. suction line temp about 64. house thermostat at 78 deg. looking for 72 deg. register putting out about 62 deg. can we damage anything until we can get tech support? what should normal operating ranges be?

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System is running a 24°F superheat and a 0°F subcooling at those readings. Saturation temperature is approx. 30°F lower than return air temperature.

Indications are of a low system charge. Ensure all your filters are clean and there are no obstructions that are limited airflow across the evaporator coil. Ensure the coils are clean and not frozen up.

Have it checked out. Looks like a low charge but can't tell without being in front of it. As far as normal ranges, that all depends on many factors. Based upon the info you have supplied, I would guesstimate that the operating pressures would be in the neighborhood of 350/160 to start and get the subcooling and superheat in check.

Posted on Aug 01, 2010

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