How much low on refrigerant?

Old 07-14-22, 03:18 PM
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How much low on refrigerant?

Hi Experts, indoor evaporator coil froze up on me, I hooked up the gauges and I see a subcool of about 4 and very high superheat. Is there a way to estimate how much refrigerant I'm missing? Unit is a 4 ton carrier with initial charge of 7lb r410.

Old 07-14-22, 04:43 PM
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Sorry.... pressures and charging are something that we don't discuss on this site.

Charging your a/c.

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