System manifold for integrated delivery of refrigerant and leak detection dye, and methods of delivering leak detection dye

摘要

A method, system and manifold for use in the delivery of refrigerant and leak detection dye to an automotive air conditioning unit after evacuation of the unit and without removal of the manifold from a fitting of the unit between delivery of the dye and the refrigerant, and without requirement by the operator to refill the dye between each delivery of dye and refrigerant. The refrigerant and dye come from separate, not inline, reservoirs. The refrigerant provides a wash for dye from the fitting. The method, system and manifold are substantially automated and are operated with limited operator intervention.