Hot-water supply system and method executed by computer for controlling the hot-water supply system

Abstract

A processing executed by a hot-water supply system includes: receiving an input of a temperature (setting temperature) of hot water to be supplied by the hot-water supply system from a user; determining, by a processor of each hot-water supplier, whether the setting temperature exceeds an upper limit value of a temperature of hot water capable of being supplied by the hot-water supplier; in a case where the setting temperature exceeds the upper limit value, notifying a system controller that the setting temperature exceeds the upper limit value; transmitting a signal prohibiting a hot-water supply operation to all hot-water suppliers; notifying a remote controller that hot water cannot be supplied; and outputting a status that hot water cannot be supplied at the setting temperature.

What is claimed is: 
     
         1 . A hot-water supply system comprising:
 a plurality of hot-water suppliers; and   a system controller for controlling a hot-water supply operation performed by the plurality of hot-water suppliers, wherein   each of the plurality of hot-water suppliers comprises:   a control device that communicates with the system controller to control an action of the hot-water supplier; and   a memory that holds an upper limit value of a temperature of hot water capable of being supplied by the hot-water supplier,   the system controller transmits a setting temperature of hot water to be supplied by the hot-water supply system to each of the hot-water suppliers,   each of the control devices respectively determines whether the setting temperature exceeds the upper limit value,   any one of the control devices, based on determining that the setting temperature exceeds the upper limit value, notifies the system controller that the setting temperature exceeds the upper limit value, and   the system controller prohibits operation of each of the plurality of hot-water suppliers.   
     
     
         2 . The hot-water supply system according to  claim 1 , wherein
 the system controller notifies, to outside of the hot-water supply system, that the setting temperature exceeds the upper limit value.   
     
     
         3 . A hot-water supply system comprising:
 a plurality of hot-water suppliers; and   a system controller that communicates with the plurality of hot-water suppliers to control a hot-water supply operation performed by each of the hot-water suppliers, wherein   each of the plurality of hot-water suppliers comprises:   a control device that communicates with the system controller to control an action of the hot-water supplier; and   a memory that holds an upper limit value of a temperature of hot water capable of being supplied by the hot-water supplier, and   the system controller is configured to:
 determine whether a setting temperature of hot water to be supplied by the hot-water supply system exceeds any of the upper limit values, and 
 prohibit operation of each of the plurality of hot-water suppliers based on determining that the setting temperature exceeds any of the upper limit values. 
   
     
     
         4 . The hot-water supply system according to  claim 3 , wherein
 the system controller notifies, to outside of the hot-water supply system, that the setting temperature exceeds the upper limit value.   
     
     
         5 . A method executed by a computer for controlling a hot-water supply system comprising a plurality of hot-water suppliers, the method comprising:
 determining whether a setting temperature of hot water to be supplied by the hot-water supply system exceeds an upper limit value of a temperature of hot water capable of being supplied by any of the plurality of hot-water suppliers; and   prohibiting supply of hot water at the setting temperature based on determining that the setting temperature exceeds the upper limit value.   
     
     
         6 . The method according to  claim 5 , further comprising:
 notifying, to outside of the hot-water supply system, that the setting temperature exceeds the upper limit value.