Patent ID: 9335078
Filing Date: 2016-05-10
CPC Classification: F16K,F25B

Claim Text:
1. An air conditioning system for refrigerant based cooling of air within a building, the building having an exterior wall, the air conditioning system comprising: (a) a condenser unit mounted outwardly from the exterior wall, the condenser unit having a liquid refrigerant output port and an evaporated refrigerant input port; (b) an evaporator unit mounted inwardly from the exterior wall, the evaporator unit having a liquid refrigerant input port and an evaporated refrigerant output port; (c) a pair of refrigerant carrying lines, each line among the pair of refrigerant carrying lines having a condenser unit end and an evaporator unit end, one of said lines extending from the condenser unit's liquid refrigerant output port to the evaporator unit's liquid refrigerant input port, and the other of said lines extending from the evaporator unit's evaporated refrigerant output port to the condenser unit's evaporated refrigerant input port; and (d) exterior and interior pairs of isolation valves, said valve pairs being respectively operatively connected to the refrigerant carrying lines' condenser and evaporator unit ends, each valve among the exterior and interior pairs of isolation valves having upstream and downstream ends and having first and second pressure testing ports respectively opening said each valve's upstream and downstream ends; wherein each valve among the exterior and interior pairs of isolation valves comprises a downwardly positioned seat; wherein each valve among the exterior and interior pairs of isolation valves further comprises a valve sealing element positioned upwardly with respect to said each valve's downwardly positioned seat, and further comprising a jack screw actuator positioned upwardly from the downwardly positioned seat and positioned upwardly from the valve sealing element, said each valve's jack screw actuator being connected operatively to said each valve's sealing element for downwardly seating and upwardly unseating and for alternatively permitting and resisting flows of the refrigerant between said each valve's upstream and downstream ends.