Hot and cold water mixing discharge device

A hot and cold water mixing discharge device comprising a cold water inflow passage connected to a cold water source;

• a hot water inflow passage connected to a hot water source;
• a mixing chamber in which a cold water and a hot water are mixed together to make a warm water;
• an automatic temperature control means provided between said chamber and each of said passages so that the ratio of the flow rates of said cold and hot waters flowing into said chamber is automatically modulated by said means depending on a preset temperature for said warm water;
• a warm water passage communicating with said chamber;
• a by-pass for optionally connecting said cold water inflow passage and said hot water inflow passage to said warm water passage around said means;
• a flow rate control means provided in said by-pass in order to regulate the flow rate of said cold and hot water flowing from said by-pass to said warm water passage, wherein the flow rate control means is provided at the upstream end of the by-pass, and includes a means for regulating the flow rates of the cold and hot waters from the cold and the hot water inflow passages;
• and a discharge port provided at the downstream end of said warm water passage.