PURPOSE: To eliminate the variation of water temperature in each faucet even hot water is used concurrently in plural faucets with cold-water and hot-water supplied by one piping for one faucet.
CONSTITUTION: A hot-water supplying heat source apparatus 2, cold-water supplying header 4, and hot-water header 6 are provided in a multi-zone heat source apparatus 1. Flow control valves 5 and 7 and a mixing valve 9 are provided every faucet 11 in the multi-zone heat source apparatus 1. A single duct 23 is installed, via a control-wire-attached sheath pipe every faucet 11, to be connected to each mixing valve 9. A water temperature setter on the faucet 11 side and the mixing valve 9 and the flow control valves 5 and 7, etc., on the multi-zone heat source apparatus 1 side are connected via a control wire 18 of the control-wire-attached sheath pipe. Cold-water and hot-water are mixed to the temperature set with a water-temperature setter, with the mixing valve 9 every faucet 11 in the multi-zone heat source apparatus 1. Mixed cold-water or hot-water is carried with the single pipe 23 every faucet 11.
KUBOTA SHIGERU
OTA TAKANOBU
