JP6846033B2 - Identification tool for water heater - Google Patents

Description

The present invention relates to an identification tool for a water heater.

Conventionally, a hot water supply device for boiling water by transferring the heat burned by a gas burner to water introduced from the outside has been widely provided. In this type of hot water supply device, a water inlet for inflowing water from the outside and a hot water outlet for discharging the hot water generated by the hot water supply device to the outside are provided, and an external pipe is provided for the water inlet and the hot water outlet. By connecting the roads, it is possible to introduce water from the outside and supply hot water to the outside.

Japanese Unexamined Patent Publication No. 2012-079999

Generally, in a hot water supply device, a filter is provided on the downstream side of the water inlet to remove foreign matter from the water supplied through the water inlet. However, in general, the connecting portion between the water inlet and the hot water outlet has a common shape or an approximate shape, so that they may be erroneously connected at the time of construction or maintenance, and foreign matter may enter the appliance.

As a measure to prevent such a misconnection from occurring, for example, in the case of a water heater, a method of engraving characters in the vicinity of each of the water inlet and the hot water outlet can be mentioned, but the characters are hidden behind the case. It is difficult to see visually, and it may take time to confirm or overlook.

On the other hand, although it is not related to the erroneous connection between the water pipeline and the hot water pipeline, a technique such as Patent Document 1 has been proposed as a technique for preventing the erroneous connection of the pipes. However, the technique of Patent Document 1 has a problem that the confirmation work takes time and labor because the pipe cannot be identified unless the control unit performs the control operation.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an identification tool for a hot water supply device capable of clearly indicating a water inlet and a hot water outlet with high visibility.

The identification tool for a water heater, which is one aspect of the present invention, is
A first exposed pipe that is provided with a water inlet that serves as an inlet for water from the first external pipe and is connected to the first external pipe, and a water passage that allows water that has flowed in from the outside through the water inlet to pass through. The gas burner, the heat exchanger that transfers the heat generated by the gas burner to the water passing through the water passage to boil the hot water, and the hot water outlet configured as the outlet of the hot water boiled by the heat exchanger are provided. It is attached to a hot water supply device having a second exposed pipe to which a second external pipe for flowing hot water flowing out from a hot water outlet is connected.
A first display member attached to the first exposed pipeline or a portion connected to the first exposed pipeline and represented by at least one of a symbol or a figure indicating water.
A second display member attached to the second exposed pipe or a portion connected to the second exposed pipe and showing at least one of a symbol or a figure indicating hot water.
Have.

Since the identification tool for the hot water supply device can be configured as a member different from the case of the hot water supply device, it is easy to improve the visibility as compared with the configuration in which the case is engraved or the like. Therefore, it becomes easier for the persons concerned to recognize that the first exposed pipe is a water-related pipe and the second exposed pipe is a hot water-related pipe. Therefore, when a person concerned confirms which is the pipeline related to water and which is the pipeline related to hot water, it becomes easier to perform the confirmation work more quickly and more accurately.

FIG. 1 is a schematic view schematically showing the appearance of a hot water supply device to which an identification tool for the hot water supply device according to the first embodiment is attached. FIG. 2 is a schematic circuit diagram of the hot water supply device of FIG. FIG. 3 is a schematic view showing a state in which the identification tool for the hot water supply device according to the first embodiment is attached to the hot water supply device. FIG. 4A is a plan view showing the first display member, and FIG. 4B is a plan view showing the second display member.

A desirable example of the present invention is shown below.

The first display member has a first plate-shaped member configured in a plate shape, and is a symbol or a symbol indicating water by one or a plurality of penetrating portions formed so as to penetrate in the thickness direction in the first plate-shaped member. At least one of the figures may be represented. The second display member has a second plate-shaped member configured in a plate shape, and is a symbol or a symbol indicating hot water by one or a plurality of penetrating portions formed so as to penetrate in the thickness direction in the second plate-shaped member. At least one of the figures may be represented.

In the identification tool for the hot water supply device configured in this way, at least one of water or a symbol or a figure indicating hot water can be represented by a simpler configuration in each of the first display member and the second display member. .. Further, since at least one of the symbol or the figure can be represented by the plurality of penetrating portions, the represented symbol or the figure can be recognized when viewed from either the front side or the back side.

The surface portion of the first plate-shaped member may be represented by the first color, and the surface portion of the second plate-shaped member may be represented by a second color different from the first color.

In the identification tool for the hot water supply device configured in this way, each of the first display member and the second display member can be distinguished by a color, and it is possible to grasp which color indicates which display member. Can confirm which is the water pipeline and which is the hot water pipeline more quickly and more accurately.

<Example 1>
Hereinafter, Example 1 showing an example of the invention will be described with reference to the drawings.
(Configuration of hot water supply device 1)
The identification tool 100 for a hot water supply device (hereinafter, also referred to as the identification tool 100), which is an example of the present invention, can be used for the hot water supply device 1 as shown in FIGS. 1 and 2. First, the configuration of the hot water supply device 1 will be described.

The hot water supply device 1 shown in FIGS. 1 and 2 is configured as a bath / hot water supply system having a hot water supply device function for a bathtub and a function for heating water in the bathtub, and has an appearance as shown in FIG. As shown in FIG. 2, the hot water supply device 1 mainly includes a hot water supply side circuit 2 and a bath side circuit 3. The hot water supply side circuit 2 includes a water inlet pipe 12, a hot water outlet pipe 10, a gas burner 4, a heat exchanger 6, and the like, and functions as a path for heating tap water supplied from the outside to discharge hot water. The bath side circuit 3 includes a gas burner 54, a heat exchanger 56, a pipe 66, a circulation pump 62, a thermistor 64, 65, etc., and is used for circulation heating at the time of automatic hot water filling, additional cooking of the bath, and the like.

In the hot water supply side circuit 2 shown in FIG. 2, the pipeline composed of the water inlet pipe 12, the heat transfer pipe 8a, the pipe 20, the heat transfer pipe 7a, and the hot water outlet pipe 10 functions as a water passage. The water inlet pipe 12 is configured as a path through which water flows from the water inlet 16, and the hot water outlet pipe 10 is configured as a path for delivering hot water to the hot water outlet 18. The gas burner 4 corresponds to an example of a hot water supply side burner, and is a portion that burns combustion gas to generate combustion exhaust. The heat exchanger 6 corresponds to an example of a hot water supply side heat exchanger, and is water that passes through a hot water supply side water passage (a pipe composed of a water inlet pipe 12, a heat transfer pipe 8a, a pipe 20, a heat transfer pipe 7a, and a hot water outlet pipe 10). It is a part that transfers the heat generated by the gas burner 4 to boil hot water. It works to transfer heat. The heat exchanger 6 includes a primary heat exchanger 7 and a secondary heat exchanger 8, and the primary heat exchanger 7 is arranged in the hot water supply combustion chamber 90 on the upstream side of the combustion exhaust path of the gas burner 4 to provide secondary heat. The exchanger 8 is arranged on the downstream side of the combustion / exhaust path in the hot water supply / combustion chamber 90.

In the hot water supply side circuit 2 shown in FIG. 2, a water inlet pipe 12 is connected to the inlet of the secondary heat exchanger 8 so as to supply tap water. The water inlet pipe 12 is provided with a thermistor 25 as a water temperature detecting unit and a water amount sensor 34 for detecting the amount of water flowing through the water inlet pipe 12. The heat transfer tube 8a of the secondary heat exchanger 8 is connected to the downstream side of the water inlet pipe 12, and the heat transfer tube 8a of the secondary heat exchanger 8 and the heat transfer tube 7a of the primary heat exchanger 7 are further downstream of the heat transfer tube 8a. The pipe 20 connecting the above is connected. The heat transfer tube 7a of the primary heat exchanger 7 is connected in a configuration connected to the pipe 20, and the hot water discharge pipe 10 is configured to discharge hot water heated by the primary heat exchanger 7 to the outlet of the primary heat exchanger 7. Is connected. The hot water outlet pipe 10 is provided with a thermistor 26 for detecting the temperature of the water in the hot water outlet pipe 10. The heat exchanger 6 functions to recover the latent heat by the secondary heat exchanger 8 after recovering the sensible heat of the combustion exhaust by the primary heat exchanger 7.

In this configuration, the water inlet pipe 12, the heat transfer pipe 8a, the pipe 20, the heat transfer pipe 7a, and the hot water outlet pipe 10 correspond to an example of the water flow pipe, and were introduced from the first external pipeline 191 provided outside the hot water supply device 1. It functions as a flow path for water to pass through. The first external pipeline 191 is configured as, for example, a pipeline for supplying water from tap water.

As shown in FIG. 2, the hot water supply device 1 is provided with a bypass path 14 as a water passage path for bypassing between the water inlet pipe 12 and the hot water outlet pipe 10, and the bypass path 14 is provided with a bypass valve 32. There is. In the water inlet pipe 12, a water flow control valve 33 is provided on the upstream side of the branch position to which the bypass path 14 is connected, and the water flow control valve 33 varies between the closed state and the fully open state of the water flow control valve 12. The structure is such that the opening can be continuously changed.

The gas pipe 40 that supplies gas to the gas burner 4 includes a gas source solenoid valve 42, a hot water supply gas proportional control valve 44, and a hot water supply switching solenoid valve 46, 46, for each branch pipe to each gas burner 4. Each is provided. Further, below the hot water supply combustion chamber 90, a fan 48 for supplying combustion air to each gas burner 4 (hot water burner) and gas burner 54 (bath burner) is provided. A switching solenoid valve 53 is provided in the branch pipe from the gas pipe connected to the gas burner 54 (bath burner). The hot water supply gas proportional control valve 44 and the hot water supply switching solenoid valve 46 function to adjust the amount of gas to the gas burner 4.

In the bath side circuit 3, the pipe 66 has a forward pipe 67 for guiding water from the bathtub 60 side to the heat exchanger 56 side and a return pipe 66 for guiding water from the heat exchanger 56 side to the bathtub 60 side. A pipe 68, and an intermediate pipe 69 connected to the forward pipe 67 and the return pipe 68 and passing through the heat exchanger 56 are provided. The pipe 66 guides the water drawn from the bathtub 60 to the heat exchanger 56 by the forward pipe 67 during the additional cooking operation or the boiling operation, and guides the water passing through the heat exchanger 56 to the bathtub 60 by the return pipe 68. It is a circulation route. The heat exchanger 56 includes a bath primary heat exchanger 57 and a bath secondary heat exchanger 58, and transfers the heat generated by the gas burner 54 (bath side burner) to the water passing through the pipe 66 (circulation path). The going pipe 67 is provided with a circulation pump 62 and a thermistor 64 for detecting the temperature of water passing through the going pipe 67. A drop pipe 70 branched from the hot water discharge pipe 10 is connected to the return pipe 68, and the drop pipe 70 is provided with a hot water supply solenoid valve 72 and a drop water amount sensor 74. Further, the hot water supply device 1 is provided with a controller 22, which functions as a control unit for controlling the water amount adjusting unit, the gas amount adjusting unit, and the like described above, and can perform various controls and calculations.

(Structure of identification tool)
The identification tool 100, which is an example of the present invention, is attached to the hot water supply device 1 as shown in FIG. As shown in FIGS. 1 and 3, the hot water supply device 1 includes a case 5 for accommodating a gas burner 4 and a water passage, and the first exposed pipe 15 and the second exposed pipe are exposed from the case 5. A road 17 is provided.

The first exposed pipeline 15 is a pipeline arranged so as to communicate with the water inlet pipe 12 on the upstream side of the water inlet pipe 12 (FIG. 2) described above, and is arranged so as to project from the outer surface portion of the case 5. There is. At the end of the first exposed pipe 15, a water inlet 16 serving as an inlet for water from the first external pipe 191 is provided, and as shown in FIG. 1, the first exposed pipe 15 is provided with a first water inlet. In the state where the external pipeline 191 is connected, the water supplied from the first external pipeline 191 flows in through the water inlet 16 and is guided to the water inlet pipe 12 side. Further, a water filter 35 is provided in the internal space of the first exposed pipe line 15, and the water filter 35 allows the water flowing in from the water inlet 16 to move to the water inlet pipe 12 side. It functions to prevent foreign matter mixed in the water pipe 12 from moving to the water inlet pipe 12.

The second exposed pipe line 17 is a pipe line arranged so as to communicate with the hot water discharge pipe 10 (FIG. 2) on the downstream side of the hot water discharge pipe 10 described above, and is arranged so as to protrude from the outer surface portion of the case 5. There is. At the end of the second exposed pipe 17, a hot water outlet 18 configured as an outlet for hot water boiled by the heat exchanger 6 is provided, and as shown in FIG. 1, the second exposed pipe 17 is provided with a second outlet. In the state where the external pipeline 192 is connected, the hot water flowing out from the hot water outlet 18 is guided to the second external pipeline 192.

The identification tool 100 as shown in FIGS. 3 and 4 can be attached to the hot water supply device 1 configured in this way. Specifically, the protruding portion 19a is formed so as to protrude from the outer peripheral portion of the first exposed pipeline 15. The protruding portion 19a is formed in a tubular shape, and the internal space of the protruding portion 19a and the internal space of the first exposed pipeline 15 communicate with each other, and the internal space of the protruding portion 19a and the internal space of the first exposed pipeline 15 are connected to each other. The water filter 35 is arranged so as to straddle it. Then, the first display member 110 is attached to the protruding portion 19a. Further, a projecting portion 19b is formed so as to project from the outer peripheral portion of the second exposed pipeline 17, and the second display member 120 is attached to the projecting portion 19b.

The first display member 110 mainly includes a plate-shaped first plate-shaped member 112 and a first mounting member 114 which is a member for mounting the first plate-shaped member 112. The first plate-shaped member 112 is made of, for example, a resin material, and is a member representing at least one of a symbol or a figure indicating water. In the examples of FIGS. 3 and 4, the surface portion of the first plate-shaped member 112 is represented by a first color (for example, a cold color such as blue), and penetrates through the first plate-shaped member 112 in the thickness direction. A symbol (specifically, the kanji for "water") indicating water is written by a plurality of penetrating portions 112a formed so as to perform the above. Specifically, in the Chinese character "water", the first through-hole portion 113a representing the portion of the second stroke and the second through-hole portion 113b representing the portion of the first, third, and fourth strokes are separate. Each of the through holes is formed in a groove shape. The kanji for "water" is represented by the through-holes 113a and 113b formed separately at different positions in this way, and the structure has a strong strength while clearly indicating "water".

At a position closer to one end in the longitudinal direction of the first plate-shaped member 112, an elongated hole portion 112b for passing the first mounting member 114 is formed as a hole portion penetrating in the thickness direction. As shown in FIG. 3, the first mounting member 114 is made of, for example, a resin material and is configured as a band-shaped or string-shaped member that can be flexed and deformed, and is arranged so as to be inserted through the elongated hole portion 112b. The first mounting member 114 is bent while being inserted through the elongated hole portion 112b, and is mounted so that both end portions of the first mounting member 114 are locked to the above-mentioned protruding portion 19a. Specifically, openings 114a and 114b are formed near both ends of the first mounting member 114, respectively, and protrusions 19a connected to the first exposed pipe line 15 are inserted into these openings 114a and 114b. It is installed so that it can be used.

The second display member 120 mainly includes a second plate-shaped member 122 configured in a plate shape and a second mounting member 124 which is a member for mounting the second plate-shaped member 122. The second plate-shaped member 122 is made of, for example, a resin material, and is a member representing at least one of a symbol or a figure indicating water. In the examples of FIGS. 3 and 4, the surface portion of the second plate-shaped member 122 has a second color (for example, orange) different from the color of the surface portion of the first plate-shaped member 112 (first color). A symbol (specifically, the hiragana of "Yu") is represented by a plurality of penetrating portions 122a formed in the second plate-shaped member 122 so as to penetrate in the thickness direction. It is written. Specifically, the hiragana of "Yu" is divided into three parts, each of which is represented as a through hole. The through-hole portion 123a represents the first portion (the portion from the starting point of the beginning of writing to the position intersecting the portion of the second stroke) in the hiragana of "Yu". The through-hole portion 123b represents the second portion (the portion located on the right side of the portion of the second stroke) of the first stroke in the hiragana of "Yu". The through-hole portion 123c represents a third portion (a portion other than the first portion and the second portion described above) of the first stroke and a portion of the second stroke in the hiragana of “Yu”. The hiragana of "Yu" is represented by the through-holes 123a, 123b, and 123c formed separately at different positions in this way, and it has a strong structure while clearly indicating "Yu". ..

At a position closer to one end in the longitudinal direction of the second plate-shaped member 122, a long hole portion 122b for passing the second mounting member 124 is formed as a hole portion penetrating in the thickness direction. As shown in FIG. 3, the second mounting member 124 is configured as a band-shaped or string-shaped member that can be flexed and deformed, and is arranged so as to be inserted through the elongated hole portion 122b. The second mounting member 124 is bent while being inserted into the elongated hole portion 122b, and both ends of the second mounting member 124 are mounted so as to be locked to the above-mentioned protruding portion 19b. Specifically, openings 124a and 124b are formed near both ends of the second mounting member 124, respectively, and protrusions 19b connected to the second exposed pipe line 17 are inserted into these openings 124a and 124b. It is installed so that it can be used.

Next, the effect of this configuration will be illustrated.
Since the identification tool 100 for the hot water supply device shown in FIGS. 3 and 4 and the like can be configured as a member different from the case 5 of the hot water supply device 1, visibility is compared with a configuration in which the case 5 is engraved or the like. Easy to increase. Therefore, it becomes easier for the persons concerned to recognize that the first exposed pipe line 15 is a pipe line related to water and the second exposed pipe line 17 is a pipe line related to hot water. Therefore, when a person concerned confirms which is the pipeline related to water and which is the pipeline related to hot water, it becomes easier to perform the confirmation work more quickly and more accurately.

For example, if the first external pipeline 191 and the second external pipeline 192 are erroneously connected, the first external pipe is connected to the outlet (spout outlet 18) of the hot water outlet pipe 10 which is a pipeline in which the water filter 35 does not exist. If the road 191 is erroneously connected and water is supplied from the first external pipe 191 in this state, foreign matter mixed in the water invades into the hot water supply device through the hot water outlet pipe 10. There is a risk that it will end up. However, if the above-mentioned identification tool 100 is used, the person concerned can surely confirm which is the pipeline related to water and which is the pipeline related to hot water, so that such an erroneous connection can be prevented. As a result, it is possible to effectively prevent the intrusion of foreign matter due to incorrect connection.

As shown in FIG. 3, the first display member 110 has a first plate-shaped member 112 configured in a plate shape, and a plurality of penetrations formed so as to penetrate in the thickness direction in the first plate-shaped member 112. A symbol (specifically, a kanji) indicating "water" is represented by part 112a. The second display member 120 has a second plate-shaped member 122 configured in a plate shape, and is "hot water" by a plurality of penetrating portions 122a formed so as to penetrate in the thickness direction in the second plate-shaped member 122. A symbol (specifically, hiragana) is displayed. The identification tool 100 configured in this way can represent a symbol indicating water or hot water in each of the first display member 110 and the second display member 120 with a simpler structure. Further, since the symbol can be represented by a plurality of penetrating portions, the represented symbol can be recognized when viewed from either the front side or the back side.

In the discriminator 100 shown in FIGS. 3 and 4, the surface portion of the first plate-shaped member 112 is represented by the first color, and the surface portion of the second plate-shaped member 122 is different from the first color. It is represented by the color of. In this way, each of the first display member 110 and the second display member 120 can be distinguished by a color, and a person who knows which color indicates which display member is a tube related to water. It is possible to confirm which is the conduit for hot water on the road more quickly and more accurately.

<Other Examples>
Various changes may be made to the above-described embodiment, and various configurations may be added. Hereinafter, other embodiments will be briefly described.

In the above-described embodiment, a symbol (Kanji) indicating water is shown by a plurality of penetrating portions formed so as to penetrate in the thickness direction in the first plate-shaped member 112, but a symbol indicating water by one penetrating portion is shown. (For example, kanji) may be indicated. The symbol indicating water is not limited to kanji, but may be hiragana or katakana, or may be indicated in a foreign language other than Japanese (for example, English meaning cold water), or an abbreviation (for example, "mizu"). It may be our "mi" only character, etc.). The content represented by the first plate-shaped member 112 is not limited to a symbol, but may be a figure indicating water (for example, a figure imitating a water droplet), or the symbol and the figure may be used in combination. Further, the configuration for expressing a symbol or a figure on the first plate-shaped member 112 is not limited to the penetrating portion, and a symbol or a figure representing water is expressed by drawing a picture or a character on the first plate-shaped member 112. Alternatively, another member such as a seal may be attached and represented.

In the above-described embodiment, a symbol (hiragana) indicating hot water is shown by a plurality of penetrating portions formed so as to penetrate in the thickness direction in the second plate-shaped member 122, but a symbol indicating hot water by one penetrating portion is shown. (For example, hiragana) may be indicated. The symbol indicating hot water is not limited to hiragana, but may be kanji, katakana, or the like, may be indicated in a foreign language other than Japanese (for example, English meaning hot water), or may be an abbreviation. The content represented by the second plate-shaped member 122 is not limited to the symbol, but may be a figure indicating hot water (for example, a figure imitating steam), or the symbol and the figure may be used in combination. Further, the configuration for expressing a symbol or a figure on the second plate-shaped member 122 is not limited to the penetrating portion, and a symbol or a figure representing hot water is expressed by drawing a picture or a character on the second plate-shaped member 122. Alternatively, another member such as a seal may be attached and represented.

In the above-described embodiment, the first display member 110 is attached to the portion connected to the first exposed pipe line 15 (protruding portion 19A protruding from the first exposed pipe line 15), but the first exposed pipe line 15 It may be attached to.

In the above-described embodiment, the second display member 120 is attached to the portion connected to the second exposed pipeline 17 (protruding portion 19B protruding from the second exposed pipeline 17), but the second display member 120 is attached to the second exposed pipeline. It may be attached.

The first mounting member 114 and the second mounting member 124 have a configuration in which an opening is formed at the end of the strip-shaped member and the protruding portion is inserted through the opening, but the exposed pipeline or the exposed pipe is installed. Any configuration may be used as long as it can be attached to a portion connected to the road. For example, a notch may be formed at the end of the strip-shaped member, and the notch may be attached so as to be hooked on the exposed pipe line or the portion connected to the exposed pipe line. Alternatively, the first mounting member 114 and the second mounting member 124 may be configured by a string-shaped member and mounted by a method such as binding.

1 ... Hot water supply device 4 ... Gas burner 6 ... Heat exchanger 7a, 8a ... Heat transfer tube (water passage)
10 ... Hot water pipe (water passage)
12 ... Water inlet pipe (water passage)
15 ... 1st exposed pipe 16 ... Water inlet 17 ... 2nd exposed pipe 18 ... Hot water outlet 19a ... Protruding part (portion connected to the 1st exposed pipe)
19b ... Protruding part (part connected to the second exposed pipeline)
20 ... Piping (waterway)
100 ... Identification tool for hot water supply device 110 ... First display member 112 ... First plate-shaped member 120 ... Second display member 122 ... Second plate-shaped member 191 ... First external pipeline 192 ... Second external pipeline

Claims (3)

A first exposed pipe that is provided with a water inlet that serves as an inlet for water from the first external pipe and is connected to the first external pipe, and a water passage that allows water that has flowed in from the outside through the water inlet to pass through. The gas burner, the heat exchanger that transfers the heat generated by the gas burner to the water passing through the water passage to boil the hot water, and the hot water outlet configured as the outlet of the hot water boiled by the heat exchanger are provided. It is attached to a hot water supply device having a second exposed pipe to which a second external pipe for flowing hot water flowing out from a hot water outlet is connected.
A first display member attached to the first exposed pipeline or a portion connected to the first exposed pipeline and represented by at least one of a symbol or a figure indicating water.
A second display member attached to the second exposed pipe or a portion connected to the second exposed pipe and showing at least one of a symbol or a figure indicating hot water.
Have a,
The first display member includes a plate-shaped first plate-shaped member and a first mounting member which is a member for mounting the first plate-shaped member.
The second display member includes a plate-shaped second plate-shaped member and a second mounting member which is a member for mounting the second plate-shaped member.
A first elongated hole portion is formed in the first plate-shaped member.
A second elongated hole portion is formed in the second plate-shaped member.
The first mounting member is formed in a band shape, has a first opening and a second opening formed at both ends thereof, and is bent in a state of being inserted through the first elongated hole. The first protrusion connected to the first exposed pipeline is attached so as to be inserted into the first opening and the second opening.
The second mounting member is formed in a band shape, has a third opening and a fourth opening formed at both ends thereof, and is bent in a state of being inserted through the second elongated hole. An identification tool for a water heater, which is attached so that a second protrusion connected to the second exposed pipeline is inserted into the third opening and the fourth opening. The first display member, at least one of the symbols or figures 1 or water by a plurality of through portions formed so as to penetrate in the thickness direction in the first plate member is represented,
The second display member according to claim at least one of the symbols or figures showing the hot water by one or more penetration portions formed so as to penetrate in the thickness direction in the second plate-like member is represented 1 Identification tool for water heaters described in. The surface portion of the first plate-shaped member is represented by the first color.
The identification tool for a water heater according to claim 2, wherein the surface portion of the second plate-shaped member is represented by a second color different from the first color.

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