The thermostatic expansion valve (TEV or TXV) is erroneously considered by some to be a mysterious and complex device. As a result, many valves are needlessly replaced when the cause of the system ...
My last column focused on refrigerant flow problems. (See "Analyzing Refrigerant Flow Problems," Jan. 12.) In it, we discussed how cooling coil sizes, refrigerant subcooling, liquid and suction line ...
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