PROBLEM TO BE SOLVED: To provide an artificial carbonated spring system that uses a heat source machine for hot water supply heating, including a low temperature heating circuit.SOLUTION: When a carbonated spring addition reheating mode is selected, a three-way valve V3 is configured so that the side of a carbonated spring addition reheating system C4 is opened and bathtub water circulates in the flow path drawn in a thick line. An on-off valve V1 is opened simultaneously, and a carbon dioxide gas is supplied in a carbon dioxide dissolver 3a from a carbon dioxide cylinder 4. Bathtub circulation water dissolved with the carbon dioxide becomes a carbonated spring, and is dropped into a bathtub 5. Alternatively, when a normal reheating mode is selected, the three-way valve V3 is configured so that the side of a normal reheating system C3 is opened, and thereby the bathtub water circulates in the flow path shown in Fig. 5(c). In this case, the carbon dioxide is not added.COPYRIGHT: (C)2014,JPO&INPIT【課題】低温暖房回路を備えた給湯暖房用熱源機を利用する人工炭酸泉システムを提供する。【解決手段】炭酸泉添加追焚が選択された場合には、三方弁V3は炭酸泉添加追焚系統C4側が開となり、浴槽水は太線の流路で循環する。同時に開閉弁V1が開となり、炭酸ガスボンベ4から炭酸ガス溶解部3aに炭酸ガスが供給され、炭酸ガスを溶解した浴槽循環水が炭酸泉となり、浴槽5に落とし込まれる。一方、通常追焚が選択された場合には、三方弁V3は通常追焚系統C3側が開となり、これにより浴槽水は図5(c)の流路で循環する。この場合は、炭酸ガスの添加は行われない。【選択図】図5(d)
