JP2006234242A - Hot water supply system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot water supply system for allowing a constructor to do easy piping work for a hot water supply pipe while eliminating reworking labor for connecting the hot water supply pipe when there is an error in connection. <P>SOLUTION: The hot water supply system A comprises a water heater 1, a water-hot water mixing unit 2, and a remote control 3 for setting data for a target hot water supply temperature and transmitting it to the water-hot water mixing unit 2. The water-hot water mixing unit 2 has a control means 20 for determining a hot water supply destination in accordance with data for a correspondence relationship specified by a specifying means 20a between a plurality of tapping passages and a plurality of hot water supply destinations when hot water is supplied via one of the plurality of tapping passages R1-R3, and for controlling a plurality of water-hot water mixing means 23 so that the hot water is supplied at the target hot water supply temperature corresponding to the hot water supply destination. Specified content changing means 3, 20 are further provided for changing the data for the correspondence relationship specified by the specifying means 20a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hot water supply system capable of simultaneously supplying hot water discharged from a water heater to a plurality of hot water destinations such as kitchens, bathrooms, and washrooms, and more specifically, to a plurality of hot water destinations. The present invention relates to a hot water supply system that can suitably cope with a case where there is an erroneous piping in a hot water supply pipe for supplying hot water.

  As a specific example of a conventional hot water supply system, there is a combination of a hot water heater and a hot and cold water mixing unit having a plurality of hot and cold water mixing valves that adjust the temperature by mixing water with hot water discharged from the hot water heater ( For example, see Patent Documents 1 and 2). The hot and cold water mixing unit has a plurality of hot water supply paths provided with connection ports for hot water supply pipes in respective downstream portions of the plurality of hot water and water mixing valves, and the plurality of hot water supply paths are connected to the kitchen and bathroom via the hot water supply pipes. Hot water is sent to a plurality of hot water supply destinations such as a washroom. In addition, a remote controller is connected to the hot water heater and the hot water mixing unit, and a target hot water supply temperature for each hot water supply destination can be set by the remote controller.

  According to the hot water supply system having such a configuration, when hot water is supplied from the water heater to the hot / cold water mixing unit, it is possible to generate hot water of different temperatures using a plurality of hot water / water mixing valves. Therefore, it is possible to simultaneously supply hot water at a target hot water temperature set by the remote controller to a plurality of hot water supply destinations such as a kitchen, a bathroom, and a bathroom, which is convenient for the user.

  However, the prior art still has room for improvement as described below.

  That is, in the conventional hot water supply system, it is determined in advance which of the plurality of hot water supply paths of the hot water / water mixing unit corresponds to the plurality of hot water supply destinations. For example, among the plurality of hot water routes, the first hot water route corresponds to the kitchen, and the second and third hot water routes correspond to the bathroom and the washroom, respectively. For this reason, when constructing a hot water supply system, a hot water supply pipe for a kitchen is connected to the first hot water supply path, and hot water supply pipes for a bathroom and a bathroom are connected to the second and third hot water supply paths, respectively. Must.

  However, when such a hot water supply pipe is installed, the connection destination of the hot water supply pipe may be mistaken due to a mistake of a supplier. For example, there is a case where a hot water supply pipe for a bathroom or a washroom is mistakenly connected to a place where a hot water supply pipe for a kitchen must be connected to the first hot water supply path. If the hot water supply system is used by overlooking the erroneous connection as it is, when the hot water is supplied through the first hot water supply path, the temperature of the hot water is adjusted to the target hot water temperature of the kitchen. What should be done is the target hot water supply temperature in the bathroom or bathroom, and the hot water supply system will not be operated in the desired proper state. In particular, when not only the target hot water temperature is set for each hot water supply destination, but also the hot water flow rate and other various items are set for each hot water supply destination, all of these items are the actual hot water supply destinations. Does not correspond to this, and causes a larger problem. Therefore, the erroneous connection of the hot water supply pipe as described above cannot be overlooked as it is, and needs to be appropriately eliminated.

  On the other hand, conventionally, no means for easily eliminating the erroneous connection of the hot water pipe as described above has been taken. For this reason, conventionally, in order to eliminate the erroneous connection of the hot water supply pipe, it has been necessary to redo the pipe connection of the hot water supply pipe. However, such redoing of the pipe connection is very labor and time intensive for the contractor. Therefore, it is required to eliminate such a burden.

  In addition, conventionally, since it is predetermined which of a plurality of hot water supply pipes to be connected to a plurality of hot water supply paths of the hot water mixing unit, it is inferior in flexibility when performing piping work of the hot water supply pipes, In some cases, the operation is complicated. For example, when laying a hot water pipe for kitchen and trying to connect one end of this hot water pipe to the connection port of the hot water mixing unit, rather than connecting one end of this hot water pipe to the connection port for kitchen hot water, The connection may be easier when connected to the connection port for hot water supply or bathroom hot water supply. However, in the past, such a connection was not permitted, and the elbow pipe or other short pipe was added to one end of the hot water supply pipe for the kitchen, which had to be connected to the original connection port. There was a case. Therefore, it is desirable that this is also solved.

Japanese Patent Laid-Open No. 11-270868 JP 2003-83603 A

  The present invention has been conceived under such circumstances, and when there is an error in the connection of the hot water supply pipe, it is possible to eliminate the trouble of the contractor re-connecting the pipe, An object is to provide a hot water supply system capable of facilitating piping work.

  In order to solve the above problems, the present invention takes the following technical means.

  The hot water supply system provided by the first aspect of the present invention has a hot water supply device and a plurality of hot water mixing means for adjusting the temperature of the hot water discharged from the hot water supply device by mixing water, and these Set hot water / water mixing units that have multiple hot water supply paths with hot water pipe connection ports at each downstream part of multiple hot water mixing means, and target hot water temperature data corresponding to each of multiple hot water supply destinations. And a remote controller capable of transmitting this data to the hot water / water mixing unit, and a defining means for defining a correspondence relationship as to which of the plurality of hot water supply paths corresponds to the plurality of hot water supply destinations, The hot water mixing unit determines a hot water supply destination based on the correspondence when hot water is supplied through any of the plurality of hot water supply paths, and hot water supply at a target hot water temperature corresponding to the hot water supply destination. A hot water supply system having control means for controlling the plurality of hot water and water mixing means to be performed, wherein the correspondence between the plurality of hot water supply paths defined by the defining means and the plurality of hot water supply destinations Further, it is characterized by further comprising a regulation content changing means that can change the above.

  According to such a configuration, the construction company of the hot water supply system mistakes the connection destination of the plurality of hot water supply pipes, and the correspondence between the plurality of hot water supply paths of the hot water mixing unit and the plurality of hot water supply destinations is previously determined by the defining means. Even if the content is different from the defined correspondence, it is possible to cope with it appropriately by changing the defined content. That is, according to the present invention, the correspondence relationship between the plurality of hot water supply paths defined by the defining means and the plurality of hot water supply destinations is changed to the content corresponding to the connection of the actual hot water supply pipe that is erroneously connected, By this, the connection of the hot water supply pipe actually constructed can be assumed not to be an erroneous connection. For example, when a hot water supply pipe for kitchen is mistakenly connected to a hot water supply route specified for bathroom use, the specified content is changed assuming that this hot water supply route is a hot water supply route for kitchen. Then, the erroneous connection state of the hot water supply pipe is eliminated, and when hot water is supplied through the hot water supply path, the control means of the hot water mixing unit determines that the hot water supply destination is the kitchen and sets it corresponding to the kitchen. The hot and cold water mixing means is appropriately controlled so that hot water is supplied at the target hot water supply temperature. For this reason, according to the present invention, when the hot water supply pipe is erroneously connected, there is no need to redo the pipe connection, and the work burden on the contractor can be reduced. Further, as in the present invention, if the erroneous connection of the hot water supply pipes can be properly eliminated after the construction, the plurality of hot water supply pipes are appropriately connected to the plurality of hot water supply paths of the hot water mixing unit at the time of construction. What is necessary is just to connect. Therefore, the construction work of the hot water supply pipe is also facilitated.

  In a preferred embodiment of the present invention, the control unit of the hot water / water mixing unit includes a storage unit that stores the correspondence data, and the storage unit constitutes the defining unit, and the storage unit includes The stored correspondence data can be changed using the remote controller, and the remote controller constitutes the specified content changing means.

  According to such a configuration, the contents of the correspondence can be easily changed using a remote controller, which is convenient.

  In a preferred embodiment of the present invention, the remote control includes data display means, and the data display means includes a plurality of combinations of correspondence relationships between the plurality of hot water supply paths and the plurality of hot water supply destinations. The data selected from among the plurality of displayed combinations of data is transmitted to the control means of the hot and cold water mixing unit, and stored in the storage unit. The correspondence relationship data is changed to the contents corresponding to the selected data.

  According to such a configuration, the data display means of the remote controller can simply display the data related to a plurality of types of combinations regarding the correspondence relationship between the hot water supply path and the hot water supply destination, and simply select the one corresponding to the actual combination. The contents of the correspondence can be appropriately changed by the operation, which is more convenient.

  In a preferred embodiment of the present invention, the correspondence data can be changed only when the remote controller is set to a specific mode different from the normal mode.

  According to such a configuration, it is necessary to set the remote control to a specific mode in order to change the correspondence data. Therefore, there is no possibility that the correspondence data is erroneously changed during normal use of the hot water supply system.

  In a preferred embodiment of the present invention, the control means of the hot water / water mixing unit has a plurality of types of data settings corresponding to a plurality of types of combinations of the correspondence relationships between the plurality of hot water supply paths and the plurality of hot water supply destinations. A possible switch is provided, and when the switch is operated to change the setting data, the content of the correspondence relationship is changed.

  According to such a configuration, it is possible to appropriately change the correspondence between the hot water supply route and the hot water supply destination by operating the switch instead of operating the remote controller.

  The hot water supply system provided by the second aspect of the present invention has a hot water supply device and a plurality of hot water mixing means for adjusting the temperature by mixing water with the hot water discharged from the hot water supply device, and these Set hot water / water mixing units that have multiple hot water supply paths with hot water pipe connection ports at each downstream part of multiple hot water mixing means, and target hot water temperature data corresponding to each of multiple hot water supply destinations. And a remote controller capable of transmitting this data to the hot water / water mixing unit, and a defining means for defining a correspondence relationship as to which of the plurality of hot water supply paths corresponds to the plurality of hot water supply destinations. The hot water mixing unit determines a hot water supply destination based on the correspondence when hot water is supplied through any of the plurality of hot water discharge paths, and at a target hot water temperature corresponding to the hot water supply destination. A hot water supply system having control means for controlling the plurality of hot water mixing means so that hot water is supplied, and when the correspondence is defined by the defining means, the plurality of hot water supply paths and the plurality of hot water supply It is characterized in that any one combination can be arbitrarily selected from a plurality of types of combinations with respect to the corresponding relationship.

  According to such a configuration, at the time of piping construction of the hot water supply pipe, the correspondence relationship between the plurality of hot water supply paths and the plurality of hot water supply destinations is not defined, and after the piping construction is finished, It is possible to define the content to match the actual piping connection. In this way, it is possible to prevent erroneous connection of the hot water supply pipe itself. Therefore, similarly to the hot water supply system provided by the first aspect of the present invention, there is no need to redo the pipe connection work of the hot water supply pipe. In addition, when installing a plurality of hot water pipes, the hot water pipes need only be connected appropriately so that they can be easily connected to the hot water pipe connection port of the hot water mixing unit. Is also easier.

  Other features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an embodiment of a hot water supply system according to the present invention. The hot water supply system A of the present embodiment includes a hot water heater 1, a hot water mixing unit 2, and a plurality of remote controllers 3 (3A to 3C).

  The water heater 1 is, for example, a gas combustion type water heater, and its basic hardware configuration is the same as that conventionally known. Specifically, the water heater 1 is configured to burn fuel gas by the combustor 12 while feeding combustion air from the blower blower 16 into the can 11. A heat exchanger 14 having a water pipe 13 is provided above the combustor 12. A water supply pipe 40A such as a water pipe is connected to the water inlet 13a of the water pipe 13. Hot water obtained by heat exchange in the heat exchanger 14 is discharged from the hot water outlet 13b of the water pipe 13 and supplied to the hot water outlet 21a of the hot water mixing unit 2 via the pipe 41.

  The water heater 1 includes a control unit 10. The controller 10 includes a CPU and various memories attached thereto, and also includes a communication circuit (not shown) for communicating with the hot water / water mixing unit 2 and the remote controller 3. . This control part 10 performs change control of the tapping temperature. This control is performed by adjusting the amount of fuel gas supplied to the combustor 12, or by adjusting the opening degree of the flow rate adjusting valve 15 provided in the bypass passage 13c for mixing the hot water that has passed through the heat exchanger 14 with water. Done. In this water heater 1, when any of a plurality of hot water taps 6A to 6C described later is opened, a water flow is generated in the water pipe 13 and the flow rate exceeds a predetermined threshold value. 12 and the like are driven. Further, when the amount of flowing water decreases below the threshold value, the driving of the combustor 12 and the like is stopped, and such control is also handled by the control unit 10.

  As the plurality of remote controllers 3, there are, for example, a main remote controller 3A installed in a kitchen and sub-remote controllers 3B and 3C installed in a bathroom or a washroom. Each of these remote controllers 3 includes a plurality of operation switches 31 for inputting and setting data such as a target hot-water supply temperature and a hot-water supply flow rate (maximum hot-water supply flow rate), a display unit 32 for data display configured using a liquid crystal panel and the like. And a control unit 30 that executes various data processing and the like. The control unit 30 also has a function of performing data communication with the control unit 10 of the water heater 1 via the communication line 50. A DC voltage is applied to the communication line 50 so as to supply driving power from the water heater 1 to each remote controller 3. As the data communication method, a superposed two-core transmission in which AM modulated waves are superposed and transmitted. The method is used. When data such as a target hot water supply temperature is input and set in each remote controller 3, this data is transmitted to a control unit 20 described later of the hot water / water mixing unit 2.

  The sub remote controllers 3B and 3C can only set data about the bathroom or the bathroom where they are installed, whereas the main remote controller 3A is set by the sub remote controllers 3B and 3C. The data content can be taken in and stored, and data such as the target hot water temperature can be input and set for any hot water supply destination in the kitchen, bathroom, or washroom. Among the remote controllers 3A to 3C, at least the main remote controller 3A is, as will be described later, the first to third hot water supply paths R1 to R3 of the hot and cold water mixing unit 2 correspond to any hot water supply destination in the kitchen, bathroom, and washroom. It has a function for changing the correspondence relationship about what to do.

  The hot water mixing unit 2 includes a hot water pipe 21A having a hot water inlet 21a, a water pipe 21B having a water inlet 21b to which a water supply pipe 40B such as a water pipe is connected, and hot water and water flowing through these pipes 21A and 21B. Are mixed at a predetermined ratio to generate hot water having a desired temperature, and a control unit 20 that performs drive control of the hot and cold mixing valves 23 is provided. A plurality of pipes 24A to 24C are connected to the downstream side of the plurality of hot and cold mixing valves 23, and the first to third hot water discharge paths R1 to R3 are configured by these. Ends of the pipes 24A to 24C are, for example, connection ports 24a to 24c for connecting a plurality of hot water supply pipes 60A to 60C for circulating hot water to the kitchen, bathroom, and washroom. Hot-water taps 6A to 6C are attached to the terminal ends of hot-water pipes 60A to 60C.

  The structure of the hot / cold water mixing unit 2 will be described in further detail with reference to FIG. Ends of the pipes 21A and 21B or their branch pipes are connected to the hot water / water inlet upstream of each hot water / mixture valve 23. Each hot / cold water mixing valve 23 can change the mixing ratio of hot water and water by operating the valve body 23a by driving the electric motor M, for example. Of the pipes 21A and 21B, upstream of the hot / cold water mixing valve 23, a pair of on-off valves 22A and 22B, a hot water temperature and a pair of temperature sensors 70A and 70B for detecting the incoming water temperature, and the hot and cold water mixing valves 23. A plurality of check valves 74 are provided to prevent backflow from. In the pipes 24 </ b> A to 24 </ b> C on the downstream side of each hot water / water mixing valve 23, a temperature sensor 71 for detecting the temperature of hot water flowing out from each hot water / water mixing valve 23 and the maximum flow rate of hot water flowing out from each hot water / water mixing valve 23 are limited. An overflow prevention valve 72 and flow sensors 73A to 73C are provided. Signals from the various sensors described above are transmitted to the control unit 20, and the various valves described above (except for the check valve) are driven and controlled by the control unit 20.

  The control unit 20 includes a CPU and various memories attached to the CPU, like the control unit 10 of the water heater 1, and also includes a control unit 10 of the water heater 1 as shown in FIG. A communication circuit (not shown) that performs communication via the communication line 51 is also provided. This communication method is also a superposed two-core method similar to that described above. However, the hot water / water mixing unit 2 is supplied with power from, for example, a commercial power supply, and is not supplied with power using the communication line 51.

  The control unit 20 includes a storage unit 20a using an EEPROM as a nonvolatile memory, and the storage unit 20a includes first to third hot water supply paths R1 to R3 that are connected to a kitchen, a bathroom, and a bathroom. Correspondence data that defines which one of them corresponds is stored. This point will be described in more detail. First, the storage unit 20a stores six types of data of patterns 1 to 6 as shown in Table 1 below.

  Patterns 1 to 6 shown in Table 1 are examples of combinations of correspondence relationships between the first to third hot water supply routes R1 to R3 and three types of hot water supply destinations. In this hot water supply system A, for example, pattern 1 is selected as the initial data (data at the time of factory shipment), and the first to third hot water supply routes R1 to R3 correspond to the kitchen, bathroom, and washroom, respectively. There is a provision to do so. The storage unit 20a stores the initial data, and corresponds to an example of a defining unit according to the present invention. In addition, data such as a target hot water temperature for each hot water destination transmitted from the remote controller 3 is also stored in the storage unit 20a. As will be described later, when the hot water supply to the hot water supply destination is performed, the control unit 20 refers to those data stored in the storage unit 20a and performs hot water supply according to the data transmitted from the remote controller 3. The hot and cold water mixing valves 23A to 23C are configured to be executed.

  Next, the operation of the hot water supply system A will be described.

  First, the pipe connections of the hot water supply pipes 60A to 60C shown in FIG. 1 are as the initial data stored in the storage unit 20a, and are not erroneously connected. As described above, the initial data stored in the storage unit 20a is the content of the pattern 1 shown in Table 1, and the first to third hot water supply paths R1 to R3 are respectively a kitchen, a bathroom, and a bathroom. It is the content that it corresponds to the place. On the other hand, a hot water supply pipe 60A for a kitchen, a hot water supply pipe 60B for a bathroom, and a hot water supply pipe 60C for a bathroom are connected to the first to third hot water supply paths R1 to R3 so as to coincide with the above contents. ing. In this case, the hot water supply system A is operated without changing the initial data of the pattern 1 stored in the storage unit 20a.

  An example of the operation procedure of the control unit 20 during the operation will be briefly described. First, data such as a target hot water supply temperature for each hot water supply destination is transmitted from the remote controller 3 to the control unit 20, and the control unit 20 stores this data in the storage unit 20a. Next, for example, when the kitchen hot water tap 6 </ b> A is opened, a water flow is generated in the first hot water discharge path R <b> 1 connected to the kitchen hot water tap 6 </ b> A, and a detection signal to that effect is transmitted from the flow rate sensor 73 </ b> A. Based on this detection signal, the control unit 20 senses that hot water supply is started via the first hot water discharge route R1, and data on the correspondence relationship between the hot water supply route and the hot water supply destination stored in the storage unit 20a ( Based on the data of pattern 1, it is determined that the hot water supply destination is the kitchen. Then, the control unit 20 reads the data of the target hot water supply temperature of the kitchen from the storage unit 20a, determines the hot water temperature of the hot water heater 1 based on the target hot water temperature, and instructs the hot water heater 1 of the hot water temperature. Send data. This hot water temperature is, for example, about 5 to 10 ° C. higher than the target hot water supply temperature. The water heater 1 discharges hot water having a temperature according to the instruction data, and the hot water flows into the hot water mixing valve 23 </ b> A of the hot water mixing unit 2. The control unit 20 controls the hot water mixing valve 23A so that the temperature of the hot water becomes the target hot water supply temperature of the kitchen, and the hot water whose temperature is adjusted in this way is supplied to the hot water tap 6A of the kitchen via the hot water supply pipe 60A. Will be.

  On the other hand, when constructing the hot water supply system A, the connection destination of the hot water supply pipes 60A to 60C may be wrong. An example in that case is shown in FIG. In the figure, a hot water supply pipe 60B for a bathroom is connected to the first hot water supply path R1 defined as corresponding to the kitchen, and the second hot water supply path R2 defined as corresponding to the bathroom is used for the kitchen. A hot water supply pipe 60A is connected. Such an erroneous connection can be found, for example, by a test run after construction of the hot water supply system A. In this hot water supply system A, when such a hot water pipe is erroneously connected, the remote controller 3A is operated to rewrite the data stored in the storage unit 20a of the hot water mixing unit 2 as described below. Can be dealt with appropriately. In addition, the specific operation | movement procedure of the control part 30 of the remote control A in that case and the control part 20 of the hot water mixing unit 2 is demonstrated, referring the flowchart of FIG. 4 and FIG.

  First, the remote controller 3A is a specific mode for changing and setting the correspondence data between the first to third hot water supply paths R1 to R3 and the hot water supply destination separately from the normal mode set during the normal operation of the hot water supply system A. Is configured to be configurable. In the specific mode, for example, a specific switch operation is performed automatically or during a period from when the hot water supply system A is turned on to start up until the operation start switch of the remote control 3A is operated. It is configured to be set by. Of course, it may be set at a different time.

  When the specific mode is set (S1: YES), the control unit 30 of the remote controller 3A causes the display unit 32 to initially select one of the six types of patterns shown in Table 1 above. A screen is displayed (S2). This initial screen is, for example, a display as shown in FIG. 6A, and indicates that the initial setting of the hot water supply system A is the contents of the pattern 1 shown in Table 1 above. In this initial screen state, when a predetermined switch operation is performed, the display screen is switched to display contents as shown in FIG. 5B or FIG. Are sequentially performed (S3: YES, S4). When a switch operation for setting the display contents is performed in a state where such a display is made, the control unit 30 assumes that the pattern displayed at that time is selected. Is sent to the hot and cold water mixing unit 2 (S5; YES, S6). Since the connections of the hot water supply pipes 60A to 60C shown in FIG. 3 correspond to the pattern 2 in Table 1, the contractor of the hot water supply system A displays the screen shown in FIG. Therefore, a switch operation for setting this is performed. By this operation, data indicating that the pattern 2 has been selected is transmitted to the hot and cold mixing unit 2.

  When the control unit 20 of the hot water mixing unit 2 receives data indicating that the predetermined pattern as described above has been selected from the remote controller 3A (S10: YES), the correspondence relationship between the hot water supply path corresponding to the pattern and the hot water supply destination Is stored in the storage unit 20a as new correspondence data and updated (S11). Specifically, the control unit 20 receives data indicating that the pattern 2 is selected from the remote controller 3A, so that the data corresponding to the pattern 2, that is, the first to third tapping paths R1 to R3 are Data indicating that each corresponds to a bathroom, a kitchen, and a bathroom is stored in the storage unit 20a. The previous initial data stored in the storage unit 20a is erased, and the correspondence data is changed.

  When the data is changed, the connection state of the hot water supply pipes 60A to 60C shown in FIG. 3 is no longer an erroneous connection state. After the data change, when the hot-water tap 6B in the bathroom is opened, the flow rate sensor 73A of the first hot water discharge path R1 detects the water flow, and at that time, the control unit 20 is stored in the storage unit 20a. Based on the data, the hot water supply destination is appropriately determined to be a bathroom. Accordingly, the hot / cold water mixing valve 23A is controlled to generate hot water having a target hot water supply temperature in the bathroom, and hot water having a target hot water temperature set in advance corresponding to the bathroom is appropriately supplied to the bathroom. For this reason, even if the contractor of the hot water supply system A makes an erroneous connection as shown in FIG. 3 for the hot water supply pipes 60A to 60C, it is not necessary to redo those piping work, and the labor burden is increased. Reduced. The correspondence relationship between the first to third hot water supply routes R1 to R3 and the hot water supply destination can be changed to any of patterns 1 to 6 by the operation of the remote controller 3A. Even in the case of connection, it is possible to cope appropriately.

  Moreover, if the data content of the correspondence relationship memorize | stored in the memory | storage part 20a can be changed after finishing piping construction of the hot water supply pipes 60A-60C as mentioned above, the hot water supply pipes 60A-60C will be as initial data. There is no need to connect pipes. The contractor may connect the hot water supply pipes 60A to 60C appropriately so as to be easily connected to the first to third hot water supply paths R1 to R3. Therefore, the piping construction work of the hot water supply pipes 60A to 60C can be facilitated.

  7 and 8 show another embodiment of the present invention. In these drawings, elements that are the same as or similar to those in the above embodiment are given the same reference numerals as in the above embodiment.

  In the embodiment shown in FIG. 7, for example, three switches SW <b> 1 to SW <b> 3 for data setting are provided in the control unit 20 of the hot / cold water mixing unit 2. These switches SW1 to SW3 are, for example, dip switches, and the control unit 20 determines the first to third hot water supply paths R1 as described below based on the combination of on / off settings of the switches SW1 to SW3. ~ R3 is determined to correspond to any hot water supply destination in the kitchen, bathroom, or washroom.

  That is, there are six types of patterns 1 to 6 listed in Table 1 as combinations of the correspondence relationships between the first to third hot water supply routes R1 to R3 and the hot water supply destination. As shown in Table 2, the three switches SW1 to SW3 can be designated by on / off settings.

  The control unit 20 determines the correspondence between the hot water supply routes R1 to R3 and the hot water supply destination based on the contents of the on / off settings of the switches SW1 to SW3 and the correspondence shown in Table 2. . Therefore, as an initial setting, for example, in a state where the switches SW1 to SW3 are set to the contents of the pattern 1 in Table 2, when the hot water supply pipes 60A to 60C are erroneously connected to the state shown in FIG. By operating the switches SW1 to SW3 to change the setting contents corresponding to the pattern 2 in Table 2, erroneous connection of the hot water supply pipes 60A to 60C is eliminated. Of course, since any one of the patterns 1 to 6 can be set using the switches SW1 to SW3, it is possible to cope with erroneous connection of variations different from those in FIG. As can be understood from the present embodiment, in the present invention, the correspondence relationship between the hot water supply path of the hot water mixing unit and the hot water supply destination can be changed using means other than the remote controller.

  In the embodiment shown in FIG. 8, the piping 24C of the third hot water supply route R3 is branched into two, and two connection ports 24c for hot water supply pipes are provided. According to such a structure, the hot water supply destination can be increased, for example, the hot water whose temperature has been adjusted by the hot / cold water mixing valve 23C is supplied to two washrooms on the first and second floors of the house.

  The present invention can also be applied to a case where the hot water supply path is branched as shown in FIG. That is, in the configuration shown in the figure, as long as the hot water supply destination of the same system, for example, two hot water supply pipes 60C of two washrooms are connected to the two connection ports 24c of the third hot water supply route R3, Even if the hot water supply pipes 60A, 60B are erroneously connected to the two hot water supply paths R1, R2, if the hot water supply destination corresponding to the first and second hot water supply paths R1, R2 is changed accordingly, This is because the erroneous connection is appropriately eliminated.

  The present invention is not limited to the contents of the above-described embodiment. The specific configuration of each part of the hot water supply system according to the present invention can be varied in design in various ways.

  For example, in the above-described embodiment, at the stage of constructing the hot water supply system A, the correspondence relationships between the first to third hot water supply paths R1 to R3 and a plurality of hot water supply destinations are preset (initially set), and the hot water supply pipe After actually connecting the pipes 60A to 60C, the initially set contents are changed, but the present invention is not limited to this. In the present invention, at the stage of constructing the hot water supply system, the correspondence relationship between the hot water supply pipes 60A to 60C and the hot water supply destination is not set, and at the stage where the piping construction of the hot water supply pipes 60A to 60C is completed, the hot water supply pipes 60A. The correspondence relationship between the first to third hot water discharge paths R1 to R3 and the hot water supply destination is defined so as to match the actual connection situation between -60C and the first to third hot water discharge paths R1 to R3. It doesn't matter. In this case, as means for defining these correspondence relationships, as in the previous embodiment, the correspondence relationship is selected using the remote controller 3A, and the selected data is transmitted to the control unit 20 and stored. Means for storing in the unit 20a can be used. Also, when using the data setting switches SW1 to SW3, the settings of the switches SW1 to SW3 are invalidated until the piping construction is completed, and the settings of the switches SW1 to SW3 are valid after the piping construction is completed. As described above, the correspondence between the hot water supply route and the hot water supply destination can be defined.

  Further, in the hot water supply system according to the present invention, it is not necessary that the target hot water supply temperature, the amount of hot water, and the like are set only for one hot water supply destination. In the present invention, a plurality of target hot water supply temperatures and amounts can be set for one hot water supply destination. When hot water is actually supplied, the user can arbitrarily select one of the plurality of types. You can also

  For example, as a mode for performing shower hot water supply in the bathroom, the My shower mode can be set so that a plurality of users can use the shower at a preset hot water temperature and amount according to their preferences. You can also. An example of means for realizing this will be briefly described. First, the remote control 3 is provided with a switch for setting my shower so that the data setting screen for my shower can be displayed. The user sets his / her favorite shower temperature and shower flow data. This setting may be performed by entering specific numerical values, or the hot water is actually allowed to flow out of the shower head, the hot water temperature and amount are adjusted to the desired content, and the setting switch is operated. The hot water temperature and the hot water amount at the time of the setting operation may be determined by the control unit 20 of the hot water / water mixing unit 2 and stored. The data may be stored in the memory of the remote controller 3, but when the memory is a volatile memory, the data is lost when the power supply is cut off. As a means for coping with this, the data is transferred to and stored in the non-volatile storage unit 20a of the hot and cold water mixing unit 2, and when the power supply is cut off, The data may be transmitted to the remote controller 3. When the user actually uses the shower, the user selects a shower mode set in advance by performing a predetermined switch operation or the like. Thereby, it will be possible to take a shower at a hot water temperature and a hot water amount that suits one's preference. If the hot water temperature and the hot water amount can be set in a plurality of ways, each of the plurality of users can easily realize a shower according to their preference, which is more convenient. In addition, as a means for more convenience when using the shower in My Shower mode, appropriate values are set as initial values (already set at the time of factory shipment) as hot water temperature and hot water amount during My Shower. May be selectable. In this case, even if the user does not perform an operation of selecting a hot water temperature and a hot water amount in advance, a shower with an appropriate hot water temperature and hot water amount is possible. As a means for selecting the shower mode set by the user, instead of the user performing a switch operation by himself / herself, for example, based on the user's voice or based on a photographed image such as a face, a fingerprint, and a blood vessel pattern It is also possible to provide a means for discriminating the user and make the selection by this means.

  In the present invention, for example, an oil combustion type or other combustion type can be used as the water heater instead of the gas combustion type. Moreover, the kind of water heater is not limited to the instantaneous type. For example, a hot water storage type hot water heater that generates hot water using an electric water heater, other heat pumps, sunlight, or the like, stores the hot water in a hot water storage tank, and discharges the hot water as necessary can be used. Furthermore, it is possible to use a water heater in which the hot water temperature is constant and the hot water temperature cannot be changed.

  As hot water mixing means of the hot water mixing unit, hot water mixing means having a structure different from that of the hot water mixing valve 23 described above can be used. A plurality of hot water / water mixing means may be provided, and the specific number thereof is not limited. The remote controller is only required to be able to set the target hot water supply temperature in correspondence with at least a plurality of hot water supply destinations, and the specific number is not limited. The communication method between the remote controller and the hot / cold water mixing unit is not limited to the superimposed two-core method, and other communication methods such as a wireless communication method (including optical communication such as infrared communication) can be used. The water heater and the hot water / water mixing unit do not necessarily need to be connected by communication. This is because, for example, when a hot water supply device that cannot change the hot water temperature is used, there is no need to perform data communication between the hot water supply device and the hot water mixing unit.

It is explanatory drawing which shows an example of the hot water supply system which concerns on this invention. It is explanatory drawing of the hot water mixing unit used for the hot water supply system shown in FIG. It is principal part explanatory drawing which shows an example when the hot water supply pipe is misconnected to the hot water mixing unit shown by FIG. It is a flowchart which shows an example of the operation processing procedure of the control part of the remote control of the hot-water supply system shown by FIG. It is a flowchart which shows an example of the operation | movement process procedure of the control part of the hot water mixing unit of the hot water supply system shown by FIG. (A)-(c) is a principal part front view which shows the specific example of the screen displayed on the display part of a remote control. It is principal part explanatory drawing which shows the other example of the hot water supply system which concerns on this invention. It is principal part explanatory drawing which shows the other example of the hot water supply system which concerns on this invention.

Explanation of symbols

A Hot water supply system R1 to R3 First to third hot water supply routes SW1 to SW3 Switch 1 Water heater 2 Hot water mixing unit 3 (3A to 3C) Remote control 6A to 6C Hot water tap 20 Control unit (for hot water mixing unit)
20a storage unit (for hot water mixing unit)
23 Hot and cold water mixing valve 30 Control unit (of remote control)
31 Operation switch (on remote control)
32 Display (on remote control)
60A-60C Hot water supply pipe

Claims (6)

A water heater,
A plurality of hot water mixing means for adjusting the temperature by mixing the hot water discharged from the hot water heater and adjusting the temperature thereof, and a plurality of hot water pipe connection ports provided at the downstream portions of the hot water mixing means A hot and cold water mixing unit that forms a hot water outlet route,
A remote controller capable of setting target hot water supply temperature data corresponding to each of a plurality of hot water supply destinations and transmitting the data to the hot water mixing unit;
Defining means for defining a correspondence relationship as to which of the plurality of hot water supply destinations the plurality of hot water supply paths,
The hot water / water mixing unit determines a hot water supply destination based on the correspondence when hot water is supplied through any of the plurality of hot water supply paths, and hot water supply at a target hot water temperature corresponding to the hot water supply destination is performed. A hot water supply system having control means for controlling the plurality of hot water mixing means to be performed,
A hot water supply system, further comprising: a regulation content changing unit capable of changing a correspondence relationship between the plurality of hot water supply paths defined by the defining unit and the plurality of hot water supply destinations. The hot water / water mixing unit control means includes a storage unit for storing the correspondence data, and the storage unit constitutes the defining unit,
The hot water supply system according to claim 1, wherein the correspondence data stored in the storage unit can be changed using the remote controller, and the remote controller constitutes the specified content changing unit. The remote control includes data display means, and the data display means can display a plurality of types of combination data regarding the correspondence between the plurality of hot water supply paths and the plurality of hot water supply destinations.
Data selected from among the plurality of types of displayed data is transmitted to the control unit of the hot water / water mixing unit, so that the correspondence data stored in the storage unit is selected. The hot water supply system according to claim 2, wherein the hot water supply system is configured to be changed to contents corresponding to the data.   The hot water supply system according to claim 2 or 3, wherein the correspondence data can be changed only when the remote controller is set to a specific mode different from the normal mode. The control means of the hot water mixing unit is provided with a switch capable of setting a plurality of types of data corresponding to a plurality of types of combinations regarding the correspondence relationship between the plurality of hot water supply paths and the plurality of hot water supply destinations,
The hot water supply system according to claim 1, wherein the contents of the correspondence relationship are changed by changing the setting data by operating the switch. A water heater,
A plurality of hot water mixing means for adjusting the temperature by mixing the hot water discharged from the hot water heater and adjusting the temperature thereof, and a plurality of hot water pipe connection ports provided at the downstream portions of the hot water mixing means A hot and cold water mixing unit that forms a hot water outlet route,
A remote controller capable of setting target hot water supply temperature data corresponding to each of a plurality of hot water supply destinations and transmitting the data to the hot water mixing unit;
And a defining means for defining a correspondence relationship as to which of the plurality of hot water supply destinations corresponds to the plurality of hot water supply paths,
The hot water / water mixing unit determines a hot water supply destination based on the correspondence when hot water is supplied through any of the plurality of hot water supply paths, and hot water supply at a target hot water temperature corresponding to the hot water supply destination is performed. A hot water supply system having control means for controlling the plurality of hot water mixing means to be performed,
When the correspondence is defined by the defining means, any one combination can be arbitrarily selected from a plurality of types of combinations of the correspondence between the plurality of hot water supply paths and the plurality of hot water supply destinations. A hot water supply system characterized by comprising.

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