| 摘要 |
PURPOSE:To facilitate maintenance and inspection tasks and allow for an installation outdoors, by containing a piping header, a valve attached to a branch pipe of this header and a power terminal in a single box having a maintenance and inspection cover mounted thereon. CONSTITUTION:There is provided a feeding pipe header 1 for supplying a water from a heat source machine to a heating device and a return pipe header 2 for collecting a return water from the heating device to return the same to the heat source machine. These two headers 1, 2 all comprise main pipes 1a, 2a and a plurality of branch pipes 1b, 2b. A valve is provided at either of these branch pipes 1b or 2b for controlling a heating temperature and flow rate etc., A power terminal 4 connecting the valve 3 with a controller for controlling the valve 3 is contained inside a single box 5 together with respective headers 1, 2 and the valve 3. A maintenance and inspection cover 5a is freely removably attached to the body of box 5 by means of a make-up set screw 6. Thus, the headers, the valve and the power terminal can be maintained and inspected easily, while simultaneously realizing their installation outdoors. |
