Patent ID: 8375991

Claim:
A valve assembly comprising: a body including, a first open end, a second open end, a passageway extending between the first and the second open ends, a first port defined by the body and connected to the passageway, a second port defined by the body and connected to the passageway adjacent the first port, a third port defined by the body and connected to the passageway, and a fourth port defined by the body and connected to the passageway; a first valve member received in the passageway at an intersection of the passageway and the first port, the valve member including a tee shaped passage such that, in a first position the valve member opens the passageway and the first port, in a second position the valve member closes the passageway d connects the first open end to the first port, in a third position the valve member closes the passageway and connects the first port to the second open end, and in a fourth position the valve member opens the passageway and closes the first port; a second valve member for opening and closing the third port; an expansion tank connected to the second open end of the body of the valve; a fill valve and backflow preventer assembly connected to the first port of the body of the valve assembly; and an air separator connected to the first open end of the body of the valve assembly.