JP6203590B2 - Bath device with water heater - Google Patents

Description

  The present invention provides a drain discharge control means for discharging drain to the outside of the reheating circulation path via a reheating circulation path connected to a bathtub, and after the drain is discharged by the drain discharge control means, The present invention relates to a bath apparatus with a hot water heater, comprising: cleaning control means for cleaning the inside of the recirculation circulation path with hot water passing through the circulation circulation path.

  For example, in Patent Document 1, the drain in the recirculation circuit connected to the bathtub is not discharged to the outside of the recirculation circuit, and the drainage of the bathtub is performed through the recirculation circuit. Has disclosed a bath apparatus with a water heater that prevents water from being mixed into bathtub hot water. In the bath device with a water heater of Patent Document 1, an error signal output when the bath device with a water heater is turned on or when the drain is stopped due to a failure of the drain discharge function for draining and discharging the drain to the bathroom through the circulation path. After being released or after draining with the drain discharge function, the error signal output at the time of stoppage due to a failure of the cleaning function that cleans the inside of the recirculation circuit with hot water passed through the recirculation circuit is canceled. After that, the cleaning function is always performed. As a result, even if a failure occurs during the operation of the drain discharge function or the cleaning function, the recirculation circuit does not remain uncleaned, so drain remains in the recirculation circuit. The bath is not refilled. Therefore, it can prevent that drain mixes in bathtub hot water.

JP 2012-77789 A

  However, in the above bath device with a water heater, after the power source of the bath device with a water heater is turned on or after the error signal output at the time of stoppage due to failure of the drain discharge function or the cleaning function is canceled, The cleaning function was operated to clean up the recirculation circuit. In such a case, for example, even before the power is turned on, even if the user knows that there is no need to clean up the recirculation circuit because the drain discharge operation has not been performed. Then, cleaning in the recirculation circuit will be performed. For this reason, due to the time required for this cleaning, there are inconveniences that it takes time until the hot water filling of the bathtub is completed, and the hot water used for the cleaning is wasted. In addition, for example, even if the draining operation is interrupted in the middle due to a failure of the bath apparatus with a hot water heater, or the cleaning operation in the recirculation circuit is interrupted in the middle, the user can save hot water consumed for the cleaning operation. For this reason, there was a case where it was not desired to clean the recirculation circuit.

  The present invention has been proposed in view of such a situation, and it is possible to select whether or not to clean the recirculation circuit, and waste the time required for this cleaning and the hot water used for the cleaning. It aims at providing the bath apparatus with a water heater which prevents this.

In order to achieve the above object, the invention described in claim 1 includes a hot water supply circuit provided with a heat exchanging portion that recovers sensible heat and latent heat from combustion gas generated by combustion of a burner, and is connected to a bathtub. The recirculation circuit is connected to the hot water supply circuit through the connection path, and has a drain outlet path that guides the drain generated by the heat exchange section to the recirculation circuit, Drain discharge control means for discharging drain to the outside of the recirculation circulation path through the drain lead-out path and the recirculation circulation path, and after draining the drain by the drain discharge control means, recirculation through the hot water supply circuit via the connection path And a cleaning control means for cleaning the inside of the circulation circuit with hot water passed through the road, and a bath device with a hot water heater, after the power of the bath device with a hot water heater is turned on or a drain discharge control means A notification means for notifying whether or not to select cleaning in the recirculation circuit after interruption of drain discharge or after cleaning in the recirculation circuit by the cleaning control means, and in the recirculation circuit Selection means capable of selecting whether or not to perform the cleaning is provided.
The invention according to claim 2 is characterized in that, in the configuration according to claim 1, a sounding device for notifying whether or not to select cleaning in the recirculation circuit is provided as a notification means. Is.
According to a third aspect of the present invention, in the configuration according to the first aspect, a light emitting device for notifying whether or not to select cleaning in the reheating circulation path is provided as the notification means by light emission. It is what.

According to the first aspect of the present invention, the user can easily know that the cleaning in the recirculation circuit can be selected by checking the notification content of the notification means.
In addition, the user can freely select whether or not to clean the recirculation circuit by using the selection means. Thus, for example, when the user does not need cleaning in the recirculation circuit, if the cleaning is not selected, the power is supplied to the bath apparatus with a hot water heater, the drainage is interrupted, or the cleaning is performed. Compared with the case where the cleaning is always performed after the interruption, the waste of time required for cleaning in the unnecessary recirculation circuit can be eliminated, and the time until the hot water filling of the bathtub is completed can be prevented. Moreover, it is possible to prevent waste of hot water used for the cleaning.
According to the second aspect of the present invention, the user can easily know whether or not to select cleaning in the recirculation circuit by checking the sound from the sound generation device.
According to the third aspect of the present invention, the user can easily know whether or not to select cleaning in the recirculation circuit by checking the light emission of the light emitting device.

It is a schematic system diagram of a bath apparatus with a hot water heater of an embodiment of the present invention. It is a general | schematic control block diagram for alert | reporting whether it chooses performing washing in a recirculation circuit in the bath apparatus with a water heater. It is a 1st flowchart regarding the process which the controller of the bath water heater with which a bath apparatus with a water heater is provided. It is the 2nd flowchart.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a schematic system diagram of a hot water bath device 1 according to an embodiment of the present invention. This bath apparatus 1 with a water heater includes a bath water heater 2 and a bathtub 4 installed in a bathroom 3. A first burner (not shown) is disposed in the bath water heater 2. In the bath water heater 2, a sensible heat recovery heat exchanger (not shown) is disposed upstream of the combustion gas of the first burner, and a latent heat recovery heat exchanger 7 ( (See FIG. 1). This sensible heat recovery heat exchanger recovers sensible heat of the combustion gas. On the other hand, the latent heat recovery heat exchanger 7 recovers sensible heat and latent heat of the combustion gas. A hot water supply circuit including a sensible heat recovery heat exchanger and a latent heat recovery heat exchanger 7 is formed in the bath water heater 2. In this hot water supply circuit, a water supply pipe (not shown) is connected to the inlet side of the latent heat recovery heat exchanger 7, and the outlet side of the latent heat recovery heat exchanger 7 is connected to the inlet side of the sensible heat recovery heat exchanger. ing. In addition, a tapping pipe (not shown) is connected to the outlet side of the sensible heat recovery heat exchanger. The sensible heat recovery heat exchanger and the latent heat recovery heat exchanger 7 are examples of the heat exchange section of the present invention.

  On the other hand, a second burner (not shown) is disposed in the bath water heater 2. A reheating heat exchanger 10 shown in FIG. 1 is disposed above the second burner in the bath water heater 2. This reheating heat exchanger 10 is provided in a recirculation circuit 11 connected to the bathtub 4. The follow-up circulation path 11 is formed by the forward pipe 12 and the return pipe 13. The forward pipe 12 is connected to the discharge port side of the bath circulation pump 14. Further, the forward pipe 12 is provided with a water flow switch 15 that is turned on when hot water flows through the forward pipe 12. In addition, the forward pipe 12 is provided with a thermistor 16 that detects the temperature of hot water flowing through the forward pipe 12. Further, a first three-way switching valve 17 is connected in the middle of the forward pipe 12. A discharge path 18 that communicates with the bathroom 3 is connected to the first three-way switching valve 17. By the first three-way switching valve 17, the forward pipe 12 and the return pipe 13 communicate with each other, and the forward pipe 12 and the discharge path 18 communicate with each other, and the forward pipe 12 and the return pipe 13 do not communicate with each other. It is configured to be switchable.

  As shown in FIG. 1, the return pipe 13 is connected to the suction port side of the bath circulation pump 14. In addition, the return pipe 13 is provided with a thermistor 25 that detects the temperature of hot water flowing through the return pipe 13. A second three-way switching valve 26 is connected in the middle of the return pipe 13. The second three-way switching valve 26 is connected to one end side of a pouring passage 27 as a connection passage of the present invention. Further, the other end side of the pouring channel 27 can be connected to a tapping pipe. On the other end side of the pouring passage 27, an electromagnetic valve 28 capable of opening and closing the hot water discharge pipe is provided. Further, the pouring channel 27 includes a check valve 29 for preventing a back flow from the recirculation circuit 11 to the pouring channel 27 and a back flow from the drain outlet channel 42 to the pouring channel 27 described later, A check valve 30 is provided to prevent backflow to the hot water discharge pipe. In addition, the pouring channel 27 is provided with a flow rate sensor 31 that detects the flow rate of the hot water in the pouring channel 27. A third three-way switching valve 32 is connected in the middle of the pouring channel 27.

  As shown in FIG. 1, a neutralizer 35 is provided below the latent heat recovery heat exchanger 7. In the neutralizer 35, the acidic drain generated in the latent heat recovery heat exchanger 7 is neutralized. A drain discharge pipe 36 is connected to the outlet of the neutralizer 35, and the outlet side of the drain discharge pipe 36 is connected to a drain tank 37. In the drain tank 37, the drain neutralized by the neutralizer 35 is temporarily stored. Further, the drain tank 37 is provided with water level sensors 38 to 40 for detecting the drain water level in the drain tank 37 and an overflow outlet 41 for discharging the drain exceeding the overflow level to the outside of the drain tank 37. Yes. In addition, one end side of a drain outlet path 42 for connecting the drain stored in the drain tank 37 to the recirculation circuit 11 side is connected to the lower portion of the drain tank 37. The other end side of the drain lead-out path 42 is connected to the third three-way switching valve 32 (see FIG. 1). The drain lead-out path 42 is provided with a check valve 43 that prevents a back flow from the pouring path 27 to the drain tank 37.

  As shown in FIG. 1, the first three-way switching valve 17 is connected to an electric circuit board 45 including a transmission / reception circuit, a power supply circuit, and the like. A bath remote controller 46 and a controller 47 provided in the bath water heater 2 are connected to the electric circuit board 45. In the present embodiment, as will be described later, when the user turns on the discharge start switch 48 of the bath remote controller 46, the controller 47 receives a discharge start command signal from the bath remote controller 46 via the electric circuit board 45. Each of the three-way switching valves 17, 26, and 32 is switched so that hot water passes from the outlet pipe to the recirculation circulation path 11 through the pouring line 27, thereby cleaning the recirculation circulation path 11.

  In FIG. 2, the general | schematic control block diagram for alerting | reporting whether the bath apparatus 1 with a hot water heater of this embodiment selects performing the cleaning in the reheating circulation path 11 to the user was shown. As shown in FIG. 2, the bath apparatus 1 with a hot water heater is installed in a controller 47 (see FIG. 1) of the bath water heater 2 and the bath water heater 2 that is installed in a kitchen, for example, and can be remotely operated. A hot water supply remote controller 52 and a bath remote controller 46 that is installed in the bathroom 3 (see FIG. 1) and can remotely control the bath water heater 2 are provided.

  The main board 51 includes a power supply detection circuit 54, a first arithmetic processing unit 55, a first communication circuit 56, and a storage unit 57. The power detection circuit 54 is connected to the first arithmetic processing unit 55. The power supply detection circuit 54 is used for detecting that the power supply cord of the bath water heater 2 is inserted into the outlet of a commercial AC power supply and the bath water heater 2 is in an energized state. The first arithmetic processing unit 55 is connected to the first communication circuit 56 and the storage unit 57. The first communication circuit 56 is used to transmit various signals to the hot water remote controller 52 and the bath remote controller 46 and to receive various signals transmitted from the remote controllers 46 and 52. The storage unit 57 stores a program for executing a process for informing whether or not to select cleaning in the recirculation circulation path 11 described later. Further, the storage unit 57 is capable of storing abnormality occurrence data that identifies that drain discharge, which will be described later, has been interrupted.

  As shown in FIG. 2, the hot water remote controller 52 includes a second communication circuit 58, a second arithmetic processing unit 59, a sound control circuit 60, a speaker 61, a lamp control circuit 62, and an LED (light emitting diode) 63. I have. The second communication circuit 58 is connected to the first communication circuit 56 of the main board 51 and the second arithmetic processing unit 59 of the hot water remote controller 52. The second communication circuit 58 is used for transmitting various signals to the first communication circuit 56 and receiving various signals transmitted from the first communication circuit 56. A sound control circuit 60 is connected to the second arithmetic processing unit 59, and a speaker 61 is connected to the sound control circuit 60. The sound control circuit 60 controls to emit sound from the speaker 61 based on the command signal from the second arithmetic processing unit 59. In addition, a lamp control circuit 62 is connected to the second arithmetic processing unit 59, and an LED 63 is connected to the lamp control circuit 62. The lamp control circuit 62 controls the LED 63 to be lit based on a command signal from the second arithmetic processing unit 59.

  Further, as shown in FIG. 2, the bath remote controller 46 includes a third communication circuit 65, a third arithmetic processing unit 66, a sound control circuit 60, a speaker 61, a lamp control circuit 62, and an LED 63. Here, the same components as those provided in the hot water supply remote controller 52 are denoted by the same reference numerals, and the description thereof is simplified. The third communication circuit 65 is connected to the first communication circuit 56 of the main board 51 and the third arithmetic processing unit 66 of the bath remote controller 46. The third communication circuit 65 is used for transmitting various signals to the first communication circuit 56 and receiving various signals transmitted from the first communication circuit 56. An audio control circuit 60 and a lamp control circuit 62 are connected to the third arithmetic processing unit 66. A speaker 61 is connected to the sound control circuit 60, and an LED 63 is connected to the lamp control circuit 62.

  Next, using FIG. 3 and FIG. 4, an example of a process or the like in which the first arithmetic processing unit 55 of the main substrate 51 notifies the user whether or not to select cleaning of the recirculation circuit 11 is performed. Will be explained. The first arithmetic processing unit 55 repeatedly executes the processes from the start to the end shown in FIGS. 3 and 4 based on a program stored in the storage unit 57 (see FIG. 2) at predetermined time intervals. As shown in FIG. 3, the first arithmetic processing unit 55 determines whether or not the bath water heater 2 is turned on (S1). Here, the power supply cord of the bath water heater 2 is inserted into a commercial AC power outlet and the bath water heater 2 is energized, so that the first arithmetic processing unit 55 receives a voltage from the power supply detection circuit 54 shown in FIG. It is determined whether a detection signal is received. In S1, when the first arithmetic processing unit 55 receives the voltage detection signal and determines that the power is turned on, it is determined whether or not the operation switch of the hot water remote controller 52 is in an ON state ( S2). Here, first calculation processing unit 55 determines whether or not an ON signal of the operation switch has been received from hot water supply remote controller 52.

  In S2, when the first arithmetic processing unit 55 receives the ON signal and determines that the operation switch of the hot water remote controller 52 is in the ON state, for example, a bath water heater 2 is installed in a house and a water flow test is performed. As in the case of performing, it is determined whether or not the bath water heater 2 is turned on for the first time (S3). Here, it is determined whether or not the initial flag at which the numerical value is switched from “0” to “1” is “0” when the first arithmetic processing unit 55 receives the first voltage detection signal from the power supply detection circuit 54. To do. If it is determined in S3 that the power is turned on for the first time, the first discharge operation selection notification process (S4) is executed. In the first discharge operation selection notification process (S4), as will be described below, the speaker 61 of the hot water remote controller 52 shown in FIG. Both lighting up for a predetermined time is performed. As described above, in this embodiment, it is possible to notify the user whether or not to select cleaning in the recirculation circuit 11 with a voice “Do you want to perform cleaning?”. In addition, it is possible to inform the user whether or not to select cleaning in the recirculation circuit 11 by turning on the LED 63 for a predetermined time. Therefore, it is possible to inform the user in an easy-to-understand manner that the cleaning in the recirculation circuit 11 can be selected by both the sound emitted from the speaker 61 and the lighting of the LED 63. The speaker 61 of the hot water remote controller 52 is an example of the notification means and the sounding device of the present invention, and the LED 63 of the hot water remote controller 52 is an example of the notification means and the light emitting device of the present invention.

  Specifically, in the first discharge operation selection notification process (S4), the process described below is executed. When the second arithmetic processing unit 59 shown in FIG. 2 receives a state notification signal notifying that the power is turned on for the first time from the first arithmetic processing unit 55 through the first and second communication circuits 56 and 58, the second arithmetic processing unit 59 shown in FIG. Arithmetic processing unit 59 transmits a voice output command signal to voice control circuit 60 of hot water remote controller 52. Subsequently, the audio control circuit 60 transmits an audio signal to the speaker 61, and emits a sound “Do you want to wash?” From the speaker 61. In addition, the second arithmetic processing unit 59 that has received the state notification signal transmits a lighting command signal to the lamp control circuit 62 of the hot water remote controller 52. Thereafter, the lamp control circuit 62 transmits a lighting control signal to the LED 63 so that the LED 63 is lit for a predetermined time.

  After the first discharge operation selection notification process (S4), the user turns on a discharge start switch provided in the hot water remote controller 52 to determine whether or not the discharge start switch is turned on. (S5). Here, first calculation processing unit 55 determines whether or not the discharge start switch ON signal has been received from hot water supply remote controller 52. In S5, when the first arithmetic processing unit 55 receives the ON signal and determines that the discharge start switch of the hot water remote controller 52 is in the ON state, a discharge operation process (S6) is executed. In the discharge operation process (S6), as will be described below, the drain in the drain tank 37 shown in FIG. 1 is provided in the bathroom 3 and placed under the bathtub 4 (not shown). After the drainage, the waste water is discharged to the outside of the bathroom 3, and after the drain is discharged, the inside of the circulation path 11 is washed with hot water from the hot water discharge pipe. In addition, the discharge start switch of the hot water remote controller 52 is an example of the selection means of the present invention.

Specifically, in this drainage operation process (S6), the process described below is executed. The first arithmetic processing unit 55 transmits the drive command signal to the second and third three-way switching valves 26 and 32 shown in FIG. 1 to switch the third three-way switching valve 32, and this third three-way switching valve. The drain lead-out path 42 and the pouring path 27 are connected via 32, the second three-way switching valve 26 is switched, and the pouring path 27 and the recirculation circulation path 11 are switched via the second three-way switching valve 26. Connect. In addition to this, the first arithmetic processing unit 55 transmits a drive command signal to the first three-way switching valve 17 shown in FIG. 1 to switch the first three-way switching valve 17, and this first three-way switching valve 17. The recirculation circulation path 11 (forward pipe 12) and the discharge path 18 are connected via 17. Thereafter, the first arithmetic processing unit 55 sends a drive signal to the bath circulation pump 14 shown in FIG. 1 to drive the bath circulation pump 14. Then, after the drain in the drain tank 37 circulates through the drain lead-out path 42, the pouring path 27, and the recirculation circuit 11 in order, through the discharge path 18 and the discharge section provided in the waterproof pan in the bathroom 3. It is discharged outside the bathroom 3.
In addition, after the drain is discharged to the outside of the bathroom 3, the first arithmetic processing unit 55 transmits a drive command signal to the third three-way switching valve 32 to switch the third three-way switching valve 32, The hot water outlet pipe and the pouring channel 27 are connected via the third three-way switching valve 32. Then, after the first arithmetic processing unit 55 transmits a drive command signal to the electromagnetic valve 28 and opens the electromagnetic valve 28, the first arithmetic processing unit 55 transmits a drive command signal to the bath circulation pump 14 to The bath circulation pump 14 is driven. As a result, hot water is circulated from the outlet pipe through the pouring channel 27 into the recirculation circuit 11. Therefore, the recirculation circuit 11 can be cleaned with this hot water. The first arithmetic processing unit 55 is an example of a drain discharge control unit and a cleaning control unit of the present invention.

  On the other hand, in S5, when the user does not turn on the discharge start switch of the hot water remote controller 52 and determines that the discharge start switch is in the OFF state, the standby operation process (S7) is executed.

Specifically, in the standby operation process (S7), the process described below is executed. By sending a drive command signal to each of the three-way switching valves 17, 26, 32 by the first arithmetic processing unit 55, the hot water pipe and the pouring channel 27 are connected via the third three-way switching valve 32, and the second The pouring channel 27 and the recirculation circuit 11 are connected via the three-way switching valve 26, and the forward pipe 12 and the return pipe 13 are communicated via the first three-way switching valve 17. While maintaining this state, the first arithmetic processing unit 55 continues a standby state in which it waits for reception of a command signal.
In the present embodiment, when the first arithmetic processing unit 55 determines that the operation switch of the hot water supply remote controller 52 is in the ON state based on the determination in S <b> 2 described above, the first arithmetic processing unit 55 transmits a drive command signal to the electromagnetic valve 28 to cause the electromagnetic valve 28 to operate. Open the valve. In this way, when the operation switch is in the ON state, hot water generated in the hot water supply circuit by the combustion of the first burner disposed in the bath water heater 2 is supplied from the hot water supply pipe 27 to the pouring channel 27 and the recirculation circuit. 11 is supplied to the bathtub 4 until the set water level is reached.

  If it is determined in S3 in FIG. 3 that the bath water heater 2 is not turned on for the first time, the draining performed in the discharging operation process (S6) is interrupted or the cleaning inside the recirculation circuit 11 is not performed. It is determined whether or not the operation has been interrupted (S8). Here, when the first arithmetic processing unit 55 causes the first arithmetic processing unit 55 to store in the storage unit 57 shown in FIG. 1 when drainage or the like is interrupted due to a failure of the bath water heater 2, for example, It is determined whether or not it is stored in the storage unit 57. In S8, when the first arithmetic processing unit 55 determines that the abnormality occurrence data is stored in the storage unit 57 and determines that the drain discharge is interrupted or the cleaning is interrupted, the first arithmetic processing unit 55 described above is performed. 1 discharge operation selection notification process (S4), determination in S5, discharge operation process (S6) or standby operation process (S7) are sequentially executed. On the other hand, when it is determined in S8 that there has been no interruption of drain discharge or the like, the standby operation process (S7) described above is executed.

  When it is determined in S2 that the operation switch of the hot water remote controller 52 is not in the on state but in the off state, it is determined whether or not the operation switch of the bath remote controller 46 shown in FIG. 1 is in the on state (S10). Here, the first arithmetic processing unit 55 determines whether or not the operation switch ON signal has been received from the bath remote controller 46. In S10, when the first arithmetic processing unit 55 does not receive the ON signal and determines that the operation switch of the bath remote controller 46 is in the OFF state, the process returns to the determination in S1. On the other hand, in S10, when the first arithmetic processing unit 55 receives the ON signal and determines that the operation switch of the bath remote controller 46 is ON, the bath water heater 2 is turned on as shown in FIG. It is determined whether it is the first time (S11). Here, the same determination as in S3 in FIG. 3 is made.

  In S11, when it is determined that the power is turned on for the first time, the second discharge operation selection notification process (S12) is executed. In the second discharge operation selection notification process (S12), a sound “Do you want to wash?” Is emitted from the speaker 61 of the bath remote control 46 shown in FIG. 2, and the LED 63 of the bath remote control 46 is lit for a predetermined time. I do both things. Specifically, in the second discharge operation selection notification process (S12), the third arithmetic processing unit 66 shown in FIG. 2 is turned on by the first arithmetic processing unit 55 through the first and third communication circuits 56 and 65. A status notification signal for notifying the second time is received. Thereafter, in the same manner as in the first discharge operation selection notification process (S4) described above, a sound “Do you want to wash?” Is emitted from the speaker 61 of the bath remote controller 46 and the LED 63 of the bath remote controller 46 is turned on for a predetermined time. Turn it on. As a result, similarly to the first discharge operation selection notification process (S4) described above, it is possible to notify the user in an easy-to-understand manner that the cleaning in the recirculation circulation path 11 can be selected. The speaker 61 of the bath remote control 46 is an example of the notification means and the sounding device of the present invention, and the LED 63 of the bath remote control 46 is an example of the notification means and the light emitting device of the present invention.

  After the second discharge operation selection notification process (S12), when the user turns on a discharge start switch 48 (see FIG. 1) provided on the bath remote controller 46, the discharge start switch 48 is turned on. It is determined whether or not (S13). Here, the first arithmetic processing unit 55 determines whether or not the ON signal of the discharge start switch 48 is received from the bath remote controller 46. In S13, when the first arithmetic processing unit 55 receives the ON signal and determines that the discharge start switch 48 is in the ON state, a discharge operation process (S14) is executed. In this discharge operation process (S14), the same process as the discharge operation process (S6) described above is performed. On the other hand, if the user does not turn on the discharge start switch 48 and determines that the discharge start switch 48 is in the OFF state in S13, a standby operation process (S15) is executed. In the standby operation process (S15), the same process as the standby operation process (S7) described above is performed. The discharge start switch 48 of the bath remote controller 46 is an example of the selection means of the present invention.

  If it is determined in S11 in FIG. 4 that the bath water heater 2 is not turned on for the first time, draining is interrupted or the cleaning in the recirculation circuit 11 is stopped, as in S8 in FIG. It is determined whether or not the operation has been interrupted (S16). In S16, when it is determined that the drain discharge is interrupted or the cleaning is interrupted, the second discharge operation selection notification process (S12), the determination of S13, the discharge operation process (S14), or the standby operation process is performed. (S15) are sequentially executed. On the other hand, if it is determined in S16 that there is no interruption such as drainage, the above-described standby operation processing (S15) is executed.

<Effect of this embodiment>
In the bath device 1 with a hot water heater according to the present embodiment, the user can hear the voice “Would you like to wash” emitted from the speaker 61 provided in the bath remote controller 46 or the “cleaning” issued from the speaker 61 provided in the hot water remote controller 52. By confirming the voice “Do you want to perform?”, It is possible to easily know that cleaning in the recirculation circuit 11 can be selected.
In addition, the user can easily know that the cleaning in the recirculation circuit 11 can be selected also by confirming the lighting of the LED 63 provided in the bath remote controller 46 or the lighting of the LED 63 provided in the hot water supply remote controller 52. Can do.

  Further, the user can freely select whether or not to clean the recirculation circuit 11 by using the discharge start switch 48 provided on the bath remote controller 46 or the discharge start switch provided on the hot water supply remote controller 52. it can. Therefore, for example, when the user does not need the cleaning, the cleaning in the recirculation circuit 11 must be selected without operating the discharge start switch 48 of the bath remote control 46 or the discharge start switch of the hot water supply remote control 52. Compared to the case where the cleaning is always performed after the power supply to the bath water heater 2 is turned on, after the drainage is interrupted, or after the cleaning is interrupted, the time required for the cleaning and the hot water consumed for the cleaning are compared. Can be wasted. As described above, in the present embodiment, the user can select whether or not to clean the recirculation circuit 11, so that unlike the conventional case, the reheating circuit 11 is always turned on after the bath water heater 2 is turned on. It is possible to solve the problem that the time until the hot water is discharged and the time until the hot water filling of the bathtub 4 ends is extended due to the cleaning of the inside. Therefore, user convenience can be improved.

  The present invention is not limited to the above-described embodiment, and can be implemented by appropriately changing a part of the configuration without departing from the spirit of the invention. In the above-described embodiment, in order to inform the user that cleaning of the recirculation circuit 11 can be selected, both sound is emitted from each speaker 61 and each LED 63 is lit. However, it is not limited to this. For example, the user may be informed that the cleaning can be selected simply by emitting a sound from each speaker 61, or may be informed to the user that the cleaning can be selected only by lighting each LED 63.

  Moreover, you may change the light emission mode of each LED63 when notifying a user that the said washing | cleaning is selectable not only lighting but blinking. Further, a lamp or the like may be lit or blinked instead of the LED 63 to notify the user that the recirculation circulation path 11 can be selected. In addition, unlike the above-described embodiment, a display unit is provided on the bath remote controller 46 or the hot water remote controller 52 instead of the speaker 61 and the LED 63, and for example, the text “Would you like to wash” is displayed on this display unit. The user may be informed that the cleaning can be selected. Furthermore, the display unit may be provided in the bath remote controller 46 or the hot water remote controller 52 in addition to the speaker 61 and the LED 63. In the above-described embodiment, the drain outlet passage 42 and the pouring passage 27 can be connected via the third three-way switching valve 32, but instead, the drain outlet passage 42 via the three-way switching valve. The recirculation circuit 11 may be connectable. Further, in the above-described embodiment, when the discharge start switch 48 of the bath remote controller 46 and the discharge start switch of the hot water remote controller 52 are turned on, the drain is discharged to the outside of the bathroom 3 and the inside of the recirculation circuit 11 is washed. However, the present invention is not limited to this. For example, when the discharge start switch 48 of the bath remote controller 46 or the discharge start switch of the hot water supply remote controller 52 is turned on, only the scavenging circulation path 11 may be cleaned. In addition, in the embodiment described above, an example in which the sensible heat recovery heat exchanger and the latent heat recovery heat exchanger 7 are provided separately in the bath water heater 2 is shown. The heat recovery heat exchanger and the latent heat recovery heat exchanger 7 may be integrated in the bath water heater 2.

  1 .... Bath equipment with hot water heater, 4 .... Bathtub, 7 .... Heat exchanger for latent heat recovery, 11 .... Reheating circuit, 27 ... Hot water supply passage, 42 ... Drain outlet passage, 55 ... 1 arithmetic processing unit, 61 .. speaker, 63 .. LED (light emitting diode).

Claims (3)

It has a hot water supply circuit provided with a heat exchange part that recovers sensible heat and latent heat from combustion gas generated by combustion of the burner, and has a reheating circulation path connected to the bathtub, A drain outlet path that is connected to the hot water supply circuit via a connection path and guides the drain generated by the heat exchanging section to the reheating circulation path, and the drain is connected to the drain outlet path and the reheating circulation. Drain discharge control means for discharging to the outside of the recirculation circuit through the passage, and after the drain is discharged by the drain discharge control means, it is passed from the hot water supply circuit to the recirculation circuit via the connection path. Cleaning control means for cleaning the inside of the recirculation circuit with hot water, and a bath device with a water heater,
The recirculation circulation after the hot water bath device is turned on, after the drain discharge is interrupted by the drain discharge control means, or after the cleaning control means is interrupted by the cleaning control means. Informing means for informing whether or not to select cleaning in the road;
A selection means capable of selecting whether or not to clean the recirculation circuit;
A bath apparatus with a hot water heater, characterized in that   The bath device with a hot water heater according to claim 1, wherein a sounding device for notifying whether or not to select cleaning in the reheating circulation path is provided as the notification means.   The bath apparatus with a hot water heater according to claim 1, wherein a light-emitting device that notifies whether or not to select cleaning in the reheating circulation path by light emission is provided as the notification means.

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