Abstract: Disclosed herein is a hot/cold water supply system with an improved control part. Cold water that has remained in a pipe is re-circulated through a circulating water pipe and is re-supplied into and heated by a boiler rather than being discharged out of a faucet, and the temperature of the water is adjusted in a thermo-and-geared valve to a temperature preset by a user so that water with a low temperature deviation can be supplied to the user. Further, an excessive load is prevented from being applied to the thermo-and-geared valve. Water of different temperatures preset by users can be supplied to corresponding control zones. A sudden deviation in temperature can be prevented when the boiler re-ignites. When the temperature of water reaches a preset temperature, a control panel indicates it to the user on a display and/or by providing a sound, thus making it more convenient to use.

Abstract: [Technical Problem] The discharge of mixed hot and cold water by means of a manually operated faucet handle or a manual control valve is not convenient to get an optimum temperature as the temperature of discharged water varies from user to user, and because the temperature of discharged water changes while in use, users have to operate the faucet handle again until an optimum temperature is realized. [Technical Solution] Meanwhile, the temperature-controlled mixed water and hot/cold water supply system of the present invention is designed to have start-up/stop control over a water heater and the control over a circulating water pump such that mixed water having a user-set temperature may be provided via respective water spouts that are installed in a shared bathroom, a kitchen, a private bathroom and a laundry room, respectively, thereby discharging mixed water having a preset temperature ready for immediate use.

Abstract: Disclosed herein is a built-in wall water service box. The water service box of the present invention includes a case (100) which is connected to cold and hot water pipes (10, 20) and is open at a front end thereof, and a faucet unit (200) which is provided in the case (100) and mixes cold and hot water, which enters the case (100), with each other. The water service box further includes a cover (300) which protects the faucet unit (200) and is coupled to the open front end of the case (100), and a cover flush-mounting unit (400) which is provided between the case (100) and the cover (300) to adjust a gap between the cover (300) and the case (100) embedded in a wall.

Abstract: The present invention provides a water field box 1 including a case 2 having a flexible hose 9 for connecting a soft duct 34 and a water field 33 inside, and a plate 12 for opening/closing the case 2; wherein the flexible hose 9 is coupled to the soft duct 34 protected by a flexible bellow pipe 8 through a socket 6 having different diameters at one end and also coupled to the water field 33 at the other end thereof, the opening/closing plate 12 has a frictional protrusion 19 and a repair hole 13, and a flange member 14 around outline of the hole to be opened/closed by an opening plate 21, the socket 22 having different diameters is for inserting and fitting a connection pipe 29 of the water field 33 and coupled to the opening plate 21 through a socket inserting port 23 and a threshold 24, both being formed on a part of the opening plate 21, and, at the same time, coupled and integrated with the flexible hose 9.