I give an example of how to measure the refrigerant charge on an R-454B air conditioning system equipped with a TXV metering device! Learn more about HVAC in our book here: https://www.acservicetech.com/product-page/new-2nd-edition-paperback-refrigerant-charging-and-service-procedures-for-ac . . . #refrigerant #refrigeration #hvac #hvacr #charging #TXV #R454B #acservice #acservicetech #hvactech #technician #hvactraining #HVACtips #procedures #chargingport #metering | AC Service Tech LLC
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