COLD/HOT WATER SUPPLY SYSTEM WITH AN IMPROVED CONTROL UNIT

WIPO Patent Application WO/2010/134770

A2

The present invention provides a cold/hot water supply system for public facilities, wherein residual water in a pipeline circulates to a hot water boiler through a circulating water pipe instead of being drained through a faucet, the circulated water is heated, and the hot water is adjusted by a thermostat and a geared valve to the temperature set by a user such that mixed water with less variations in temperature can be stably supplied. The cold/hot water supply system of the present invention is provided with an improved control unit for preventing the immoderate operation of the thermostat and the geared valve, for supplying water having a temperature set by a user to each zone, for preventing a sudden variation in temperature during the reignition of the hot water boiler, and for providing information via a screen and/or a voice from a speaker of a control panel upon reaching the preset temperature, thereby improving convenience for the user.

JPS6454176	METHOD FOR CONTROLLING COOLING DEVICE AND COOLING DEVICE
WO/2005/090874	MULTI-VARIABLE CONTROL OF REFRIGERANT SYSTEMS
JPS5843359	SOLAR HEAT COLLECTING DEVICE

LEE YEONG-CHUN (KR)

PCT/KR2010/003199

November 25, 2010

May 20, 2010

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PIP CO LTD (KR)
LEE YEONG-CHUN (KR)
KISEUNG METAL CO LTD (KR)

F24D19/10; E03B1/00; F24D17/00; F24H1/48

KR100679605B1	2007-02-06
KR100489440B1	2005-05-17
KR100559161B1	2006-03-13
KR20080037541A	2008-04-30
KR20080039690A	2008-05-07

HWANG, JUNG-HYUN (KR)
황정현 (KR)

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