Aggregated channel switching unit and method of manufacturing same

摘要

An aggregated channel switching unit is disposed between a heat source unit and a plurality of utilization units to switch flow of refrigerant in the refrigerant circuit. The aggregated channel switching unit including a plurality of first refrigerant pipes having switch valves, a plurality of second refrigerant pipes, and a casing accommodating the first and second pipes. The first and second pipes are aggregated as an assembly. The first pipes are connected to a high-low pressure gas communicating pipe and a suction gas communicating pipe extending from the heat source unit. The second refrigerant pipes are connected to a liquid communicating pipe extending from the heat source unit and a liquid pipe extending to the utilization units. Adjacent pairs of the first and second pipes extend approximately in parallel to each other at predetermined intervals in the assembly. The first and second pipes are alternately disposed in the assembly.

主权项

1. An aggregated channel switching unit adapted to be disposed between a heat source unit and a plurality of utilization units, the aggregated channel switching unit being configured and arranged to switch flow of refrigerant in a refrigerant circuit formed by the heat source unit and the plurality of utilization units, the aggregated channel switching unit comprising:
a plurality of first refrigerant pipes, each of the first refrigerant pipes being provided with a switch valve, the first refrigerant pipes being configured and arranged to be connected to a high-low pressure gas communicating pipe and a suction gas communicating pipe, and the high-low pressure gas communicating pipe and the suction gas communicating pipe extending from the heat source unit; a plurality of second refrigerant pipes, each of the second refrigerant pipes being configured and arranged to be connected at one end to a liquid communicating pipe extending from the heat source unit, and each of the second refrigerant pipes being configured and arranged to be connected at the other end to a liquid pipe extending to the utilization units; and a casing configured and arranged to accommodate the plurality of first refrigerant pipes and the plurality of second refrigerant pipes, with the plurality of first refrigerant pipes and the plurality of second refrigerant pipes being aggregated as an assembly, every adjacent two of the plurality of first refrigerant pipes being configured and arranged to extend approximately in parallel to each other at a predetermined interval in the assembly, every adjacent two of the plurality of second refrigerant pipes being configured and arranged to extend approximately in parallel to each other at a predetermined interval in the assembly, and the first refrigerant pipes and the second refrigerant pipes are alternately disposed in the assembly.