JPH102608A - Hot-water supply apparatus - Google Patents
Hot-water supply apparatusInfo
- Publication number
- JPH102608A JPH102608A JP8177492A JP17749296A JPH102608A JP H102608 A JPH102608 A JP H102608A JP 8177492 A JP8177492 A JP 8177492A JP 17749296 A JP17749296 A JP 17749296A JP H102608 A JPH102608 A JP H102608A
- Authority
- JP
- Japan
- Prior art keywords
- water
- burner
- amount
- temperature
- combustion amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 238000002485 combustion reaction Methods 0.000 claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 239000008399 tap water Substances 0.000 claims description 4
- 235000020679 tap water Nutrition 0.000 claims description 4
- 239000008236 heating water Substances 0.000 claims description 3
- 239000001273 butane Substances 0.000 abstract description 4
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 abstract description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Regulation And Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明はバーナの燃焼量を調
節して出湯温制御する給湯器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater for controlling a hot water temperature by adjusting a combustion amount of a burner.
【0002】[0002]
【従来の技術】従来から、供給された水をバーナの燃焼
熱により加熱して出湯する給湯器が知られている。一般
にこのような給湯器は、バーナへのガス供給量を調節す
る比例弁を備え、バーナの燃焼量を調節して出湯温度を
設定温度に近づける出湯温制御を行なう。また、器具の
耐久性やバーナの燃焼性を考慮してバーナの最大燃焼量
が定められており、その最大燃焼量により器具の最大能
力が決まる。例えば入水温度に対して25℃上昇の湯を
1分間に16リットル出湯できる能力がある場合には、
能力は16号と区分される。バーナの最大燃焼量は比例
弁の最大開度により制限している。2. Description of the Related Art Conventionally, there has been known a water heater which supplies supplied water by heating the supplied water by the combustion heat of a burner. Generally, such a water heater is provided with a proportional valve for adjusting a gas supply amount to a burner, and performs a hot water temperature control for adjusting a combustion amount of the burner to make a hot water temperature close to a set temperature. In addition, the maximum burning amount of the burner is determined in consideration of the durability of the appliance and the burnability of the burner, and the maximum burning amount determines the maximum capacity of the appliance. For example, if there is a capacity to discharge 16 liters of hot water at a temperature rise of 25 ° C. per minute,
The ability is classified as No. 16. The maximum combustion amount of the burner is limited by the maximum opening of the proportional valve.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、比例弁
の開度が同じであっても、バーナの燃焼量が異なること
がある。例えば都市ガスではウォッベ指数(ガスの発熱
量をガスの比重の平方根で割った値)にバラツキがあ
り、比例弁開度が同じであってもウォッベ指数が大きけ
れば、それに比例してバーナの発生熱量が大きくなる。
また同様に、LPガスではブタンの含有率にバラツキが
あり、ブタンの含有率が高いほどバーナの発生熱量が大
きくなる。またウォッベ指数が低い場合にも、ガス通路
での圧損が大きくなることでガバナ特性の跳ね上がりが
起こり、バーナの発熱量が大きくなることがある。その
ため能力オーバーした(設定温度にまで水を温度上昇さ
せるのに必要な熱量がバーナの最大発生熱量を越えた)
状態では比例弁開度が最大となっていることにより、ウ
ォッベ指数が大きい等といった場合にはバーナの燃焼量
が最大燃焼量を越えてしまい、燃焼状態や耐久性等が悪
くなるといった問題があった。そのため実際には、燃焼
性や耐久性に余裕を持たせることが必要となり、例えば
最大能力が18号で使用できる器具にもかかわらず、最
大能力を16号として使用しなければならなかった。However, even if the opening of the proportional valve is the same, the burner combustion amount may be different. For example, in city gas, the Wobbe index (the value obtained by dividing the calorific value of gas by the square root of the specific gravity of gas) varies, and if the Wobbe index is large even if the proportional valve opening is the same, a burner is generated in proportion to it. The amount of heat increases.
Similarly, the butane content of the LP gas varies, and the higher the butane content, the greater the amount of heat generated by the burner. Further, even when the Wobbe index is low, the governor characteristics may jump due to an increase in pressure loss in the gas passage, and the calorific value of the burner may increase. As a result, the capacity was exceeded (the amount of heat required to raise the temperature of the water to the set temperature exceeded the maximum amount of heat generated by the burner)
In such a state, the proportional valve opening is at its maximum.Therefore, when the Wobbe index is large, the burner combustion amount exceeds the maximum combustion amount, and the combustion state and durability deteriorate. Was. Therefore, in practice, it is necessary to provide a margin in flammability and durability. For example, the maximum capacity has to be used as No. 16 even though the equipment can be used with No. 18 maximum capacity.
【0004】本発明の給湯器は上記課題を解決し、供給
ガスのバラツキに対してもバーナの燃焼量が最大燃焼量
を越えない給湯器を提供することを目的とする。An object of the present invention is to provide a water heater in which the above-mentioned problems are solved, and the burner combustion amount does not exceed the maximum combustion amount even when the supply gas varies.
【0005】[0005]
【課題を解決するための手段】上記課題を解決する本発
明の給湯器は、給水路から供給された水をバーナの燃焼
熱により加熱して出湯路に供給する熱交換器と、上記熱
交換器を流れる流量を検出する流量センサと、供給され
る水の温度を検出する入水温度検出手段と、上記出湯路
にて湯の温度を検出する出湯温度センサと、上記バーナ
の燃焼量を調節する燃焼量調節手段とを備えた給湯器に
おいて、上記流量センサの検出値と、上記入水温度検出
手段の検出値と、上記出湯温度センサの検出値とに基づ
いて算出した加熱量が所定値を越えた場合には、該加熱
量が該所定値以下になるようにバーナの燃焼量を調節す
ることを要旨とする。A water heater according to the present invention for solving the above-mentioned problems comprises a heat exchanger which heats water supplied from a water supply passage by combustion heat of a burner and supplies the water to a tap water passage. A flow rate sensor for detecting a flow rate flowing through the boiler, an incoming water temperature detecting means for detecting a temperature of supplied water, a hot water temperature sensor for detecting a temperature of hot water in the hot water path, and adjusting a combustion amount of the burner. In the water heater provided with the combustion amount adjusting means, the heating amount calculated based on the detected value of the flow rate sensor, the detected value of the incoming water temperature detecting means, and the detected value of the outlet water temperature sensor is a predetermined value. If it exceeds, the gist of the invention is to adjust the burner combustion amount so that the heating amount becomes equal to or less than the predetermined value.
【0006】上記構成を有する本発明の給湯器は、給水
路から供給された水をバーナの燃焼熱により加熱して出
湯する。ここで、バーナの燃焼量が器具に規定された最
大燃焼量を越えた場合にも、入水流量と入水温度と出湯
温度とから水の加熱に利用された熱量を算出し、その算
出値が所定値を越えた場合には、バーナの燃焼量が最大
燃焼量を越えていると判断して燃焼量を調節するため、
最大燃焼量以下に制限することができる。尚、入水温度
の検出は、給水路に温度センサを設けて直接温度検出す
るといった方法の他に、出湯温度と入水流量とバーナの
燃焼量とから逆算してもよく、また出湯開始時の出湯温
度センサの検出値から想定してもよい。[0006] The water heater of the present invention having the above-described structure heats the water supplied from the water supply channel by the combustion heat of the burner and discharges the water. Here, even when the burner combustion amount exceeds the maximum combustion amount specified for the appliance, the calorie used for water heating is calculated from the incoming water flow rate, the incoming water temperature, and the outlet water temperature, and the calculated value is determined to be a predetermined value. If the value exceeds the value, the burner burn rate is judged to exceed the maximum burn rate and the burn rate is adjusted.
It can be limited to the maximum combustion amount or less. In addition to the method of directly detecting the temperature by providing a temperature sensor in the water supply path, the detection of the incoming water temperature may be calculated back from the outgoing water temperature, the incoming water flow rate, and the combustion amount of the burner. It may be assumed from the detection value of the temperature sensor.
【0007】[0007]
【発明の実施の形態】以上説明した本発明の構成・作用
を一層明らかにするために、以下本発明の給湯器の好適
な実施例について説明する。図1は本発明の一実施例と
しての給湯器の概略構成図である。この給湯器は、給水
路1と出湯路2とが接続される熱交換器3と、熱交換器
3を流れる水を加熱するためのバーナ4と、バーナ4に
ガスを供給するガス供給路5と、燃焼制御を司どるコン
トローラ6とを備える。給水路1には、入水温度に応じ
た最大流量を調節する水ガバナ7と、入水流量を検出す
る流量センサ8と、入水温度を検出する入水温度センサ
9とが設けられ、また出湯路2には、出湯温度を検出す
る出湯温度センサ10が設けられ、その下流側には給湯
栓11が接続される。またガス供給路5には、流路の開
閉を行なうメイン電磁弁12,元電磁弁13と、ガス量
を調節する比例弁14とが設けられる。BEST MODE FOR CARRYING OUT THE INVENTION In order to further clarify the configuration and operation of the present invention described above, a preferred embodiment of the water heater of the present invention will be described below. FIG. 1 is a schematic configuration diagram of a water heater as one embodiment of the present invention. The water heater includes a heat exchanger 3 to which a water supply passage 1 and a tapping water passage 2 are connected, a burner 4 for heating water flowing through the heat exchanger 3, and a gas supply passage 5 for supplying gas to the burner 4. And a controller 6 for controlling combustion. The water supply path 1 is provided with a water governor 7 for adjusting the maximum flow rate according to the incoming water temperature, a flow rate sensor 8 for detecting the incoming water flow rate, and an incoming water temperature sensor 9 for detecting the incoming water temperature. Is provided with a tap water temperature sensor 10 for detecting a tap water temperature, and a hot water tap 11 is connected downstream thereof. The gas supply path 5 is provided with a main solenoid valve 12 for opening and closing the flow path, a main solenoid valve 13, and a proportional valve 14 for adjusting the gas amount.
【0008】コントローラ6は、図示しない周知の算術
論理演算回路を構成するCPU,RAM,ROMと、各
種センサからの信号を入力する入力インタフェースと、
各種アクチュエータに駆動信号を出力する出力インタフ
ェース等から構成される。またコントローラ6は、設定
温度を設定するための操作スイッチ等を備えたリモコン
15が接続される。The controller 6 includes a CPU, a RAM, and a ROM constituting a well-known arithmetic and logic operation circuit (not shown), an input interface for inputting signals from various sensors, and
It is composed of an output interface that outputs drive signals to various actuators. Further, the controller 6 is connected to a remote controller 15 including an operation switch for setting a set temperature.
【0009】またコントローラ6は、設定温度と入水温
度と入水流量とに基づいて、出湯温度を設定温度にする
ために必要なガス量を演算・制御するフィードフォワー
ド制御(以下、FF制御と呼ぶ)と、出湯温度と設定温
度との偏差に基づいてそのFF制御量を補正するフィー
ドバック制御(以下、FB制御と呼ぶ)とにより、比例
弁の開度を調節して出湯温制御を行なう。The controller 6 calculates and controls the amount of gas required to bring the hot water temperature to the set temperature on the basis of the set temperature, the incoming water temperature, and the incoming water flow rate. And the feedback control (hereinafter, referred to as FB control) for correcting the FF control amount based on the difference between the tapping temperature and the set temperature, thereby adjusting the opening of the proportional valve to perform the tapping temperature control.
【0010】次に、コントローラ6の行なう制御処理に
ついて図2のフローチャートを用いて説明する。給湯栓
11が開かれて器具への通水が開始され、流量センサ8
により所定値以上の流量を検出すると(S1:YE
S)、メイン電磁弁12,元電磁弁13を開弁してバー
ナ4にガスを供給し、図示しない点火装置により点火し
て(S2)燃焼動作を開始する。また、リモコン15で
設定された設定温度と入水温度センサ9の検出温度との
差と、流量センサ8の検出流量との積に基づいたFF制
御と、設定温度と出湯温度センサ10の検出温度との偏
差に基づいたFB制御とにより、比例弁14の開度を調
節して出湯温制御を行なう(S3)。Next, control processing performed by the controller 6 will be described with reference to the flowchart of FIG. The hot water tap 11 is opened to start water flow to the appliance, and the flow sensor 8
(S1: YE)
S), the main solenoid valve 12 and the main solenoid valve 13 are opened to supply gas to the burner 4 and ignited by an ignition device (not shown) (S2) to start a combustion operation. FF control based on the product of the difference between the set temperature set by the remote controller 15 and the detected temperature of the incoming water temperature sensor 9 and the flow rate detected by the flow rate sensor 8; The tapping temperature control is performed by adjusting the opening of the proportional valve 14 by the FB control based on the deviation of the hot water (S3).
【0011】出湯動作中、バーナ4の燃焼量が最大燃焼
量を越えていないかを判断するため、出湯温度と入水温
度との差(上昇温度)と、入水流量との積から、水の加
熱に利用された熱量を算出する(S4)。また、コント
ローラ6は予め定められたバーナ4の最大燃焼量での発
生熱量と熱効率との積を基準値として記憶しており、そ
の基準値と算出値とを比較することで、バーナ4の燃焼
量をチェックする(S5)。ここで、算出値が基準値以
下であれば(S5:NO)、バーナ4の燃焼量が最大燃
焼量以下であると判断する。しかし、算出値が基準値を
越えている場合には(S5:YES)、供給されるガス
のウォッベ指数が大きい等といった理由で、バーナ4の
燃焼量が最大燃焼量を越えてしまっていると判断し、比
例弁開度を閉方向に調節し供給ガス量を減少させて(S
6)バーナ4の燃焼量を減少させ、算出値が基準値以下
になった所で調節を終了する(S5:NO)。[0011] During the tapping operation, to determine whether or not the burned amount of the burner 4 exceeds the maximum burned amount, the water heating is determined from the product of the difference between the tapped water temperature and the incoming water temperature (rising temperature) and the incoming water flow rate. Is calculated (S4). Further, the controller 6 stores the product of the heat generation amount and the thermal efficiency at the predetermined maximum combustion amount of the burner 4 as a reference value, and compares the reference value with the calculated value to thereby determine the combustion of the burner 4. The amount is checked (S5). Here, if the calculated value is equal to or less than the reference value (S5: NO), it is determined that the combustion amount of the burner 4 is equal to or less than the maximum combustion amount. However, if the calculated value exceeds the reference value (S5: YES), it is determined that the burned amount of the burner 4 has exceeded the maximum burned amount because the Wobbe index of the supplied gas is large. Then, the proportional valve opening is adjusted in the closing direction to reduce the supply gas amount (S
6) The combustion amount of the burner 4 is reduced, and the adjustment is terminated when the calculated value becomes equal to or less than the reference value (S5: NO).
【0012】この給湯器の入水温度が15℃での出湯能
力線図を図3に示す。この給湯器では、入水流量にかか
わらず60℃の出湯が確保できるように、水ガバナ7に
より入水温度が15℃の時には最大流量が8.9リットル/
分に制限される。従って、設定温度を75℃に設定して
給湯栓11を全開にすると、点aに示すようにバーナ4
の燃焼量は最大となるが、出湯温度は60℃までしか上
がらない。ここで、ウォッベ指数が大きいか或はブタン
の含有率が高いといった状況により、バーナ4の燃焼量
が10パーセント高くなると、点bに示すように出湯温
度は64.4℃まで上昇するが設定温度には達しず、最
大燃焼量の10パーセントUPの燃焼量で燃焼し続ける
ため、バーナ4の燃焼性、器具の耐久性等が悪化する。
しかし本実施例の給湯器では、入水温度と出湯温度と入
水流量とから水の加熱に利用された熱量を算出し、バー
ナ4の燃焼量が最大燃焼量を越えていると判断した場合
には燃焼量を減少させるため、バーナ4の燃焼量を最大
燃焼量以下に制限することができる。FIG. 3 shows a tapping capacity diagram when the inlet water temperature of this water heater is 15 ° C. In this water heater, the maximum flow rate is 8.9 liters / hour when the incoming water temperature is 15 ° C. by the water governor 7 so that hot water at 60 ° C. can be secured regardless of the incoming water flow rate.
Limited to minutes. Therefore, when the set temperature is set to 75 ° C. and the hot water tap 11 is fully opened, the burner 4
Although the amount of combustion becomes maximum, the tapping temperature rises only up to 60 ° C. Here, when the combustion amount of the burner 4 is increased by 10% due to a situation such as a large Wobbe index or a high butane content, as shown at a point b, the tapping temperature rises to 64.4 ° C. , And the combustion continues at a combustion amount of 10% UP of the maximum combustion amount, so that the burnability of the burner 4, the durability of the equipment, and the like deteriorate.
However, in the water heater of the present embodiment, the calorie used for heating the water is calculated from the incoming water temperature, the outgoing water temperature, and the incoming water flow rate, and when it is determined that the combustion amount of the burner 4 exceeds the maximum combustion amount, In order to reduce the amount of combustion, the amount of combustion of the burner 4 can be limited to the maximum amount of combustion or less.
【0013】以上説明したように、本実施例の給湯器に
よれば、何等かの原因でバーナ4の燃焼量が最大燃焼量
を越えてしまった場合にも、出湯温度と入水温度との差
と入水流量との積から水の加熱に利用された熱量を算出
し、基準値と比較してバーナ4の燃焼量をチェックし、
算出値が基準値を越えた場合にはガス供給量を減少させ
ることで、バーナ4の燃焼量を最大燃焼量以下に制限す
るため、燃焼状態や耐久性を良好に保つことができ、器
具の耐久性やバーナの燃焼性を過剰に良くする必要が無
くなる。また、バーナ4の燃焼量を従来出湯温制御に用
いるセンサを利用して算出することで、新たにセンサを
用いる必要がないためコストを低減できる。As described above, according to the water heater of the present embodiment, even if the burned amount of the burner 4 exceeds the maximum burned amount for some reason, the difference between the outlet water temperature and the incoming water temperature can be improved. The amount of heat used for water heating is calculated from the product of the product and the flow rate of incoming water, and the amount of combustion of the burner 4 is checked by comparing with the reference value.
If the calculated value exceeds the reference value, the amount of gas supply is reduced to limit the amount of combustion of the burner 4 to the maximum amount of combustion or less. It is not necessary to improve the durability and the burnability of the burner excessively. Further, by calculating the amount of combustion of the burner 4 using a sensor conventionally used for hot water temperature control, it is not necessary to use a new sensor, so that the cost can be reduced.
【0014】尚、本実施例では入水温度センサ9により
入水温度を検出したが、入水温度センサ9を設けずに出
湯温度と入水流量と比例弁開度とから逆算してもよく、
また出湯開始時の出湯温度センサ10の検出温度或は温
度変化から入水温度を想定してもよい。また、本実施例
では入水温度と出湯温度と入水流量とから算出した水の
加熱に利用された熱量と、バーナ4の最大燃焼量での発
生熱量と熱効率との積である基準値とを比較したが、入
水温度と出湯温度と入水流量とから算出した熱量を熱効
率で割ることによりバーナ4の発生熱量を算出し、最大
燃焼量での発生熱量を基準値として比較してもよい。In this embodiment, the incoming water temperature is detected by the incoming water temperature sensor 9. However, without providing the incoming water temperature sensor 9, the outgoing water temperature, the incoming water flow rate, and the proportional valve opening may be calculated back.
Also, the incoming water temperature may be assumed from the detected temperature of the hot water temperature sensor 10 or the temperature change at the start of hot water supply. Further, in the present embodiment, the calorie used for heating the water calculated from the incoming water temperature, the outgoing water temperature, and the incoming water flow rate is compared with a reference value which is a product of the amount of heat generated at the maximum combustion amount of the burner 4 and the thermal efficiency. However, the amount of heat generated by the burner 4 may be calculated by dividing the amount of heat calculated from the incoming water temperature, the outlet water temperature, and the incoming water flow rate by the thermal efficiency, and the generated heat amount at the maximum combustion amount may be compared as a reference value.
【0015】以上本発明の実施例について説明したが、
本発明はこうした実施例に何等限定されるものではな
く、本発明の要旨を逸脱しない範囲において、種々なる
態様で実施し得ることは勿論である。The embodiments of the present invention have been described above.
The present invention is not limited to these embodiments at all, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention.
【0016】[0016]
【発明の効果】以上詳述したように、本発明の給湯器に
よれば、バーナの燃焼量を器具に規定された最大燃焼量
以下に制限することができるため、燃焼性や耐久性が悪
化することを防ぐことができ、器具の耐久性やバーナの
燃焼性を過剰に良くする必要が無くなる。また、従来か
ら出湯温制御に使用されているセンサを用いて水の加熱
に利用された熱量を算出することにより、新たにセンサ
等を設ける必要がないためコストを低減することができ
る。As described in detail above, according to the water heater of the present invention, the burner burn amount can be limited to the maximum burn amount specified for the appliance or less, and the burnability and durability deteriorate. Can be prevented, and it is not necessary to excessively improve the durability of the apparatus and the burnability of the burner. Also, by calculating the amount of heat used for heating water using a sensor conventionally used for hot water temperature control, it is not necessary to newly provide a sensor or the like, so that costs can be reduced.
【図1】本発明の一実施例としての給湯器の概略構成図
である。FIG. 1 is a schematic configuration diagram of a water heater as one embodiment of the present invention.
【図2】コントローラの行なう制御処理を表すフローチ
ャートである。FIG. 2 is a flowchart illustrating a control process performed by a controller.
【図3】出湯能力範囲を表すグラフである。FIG. 3 is a graph showing a tapping capacity range.
1…給水路、 2…出湯路、 3…熱交換器、 4…バ
ーナ、6…コントローラ、 8…流量センサ、 9…入
水温度センサ、10…出湯温度センサ、 11…給湯
栓、 14…比例弁、 15…リモコン。DESCRIPTION OF SYMBOLS 1 ... Water supply channel, 2 ... Hot water supply channel, 3 ... Heat exchanger, 4 ... Burner, 6 ... Controller, 8 ... Flow rate sensor, 9 ... Input water temperature sensor, 10 ... Hot water temperature sensor, 11 ... Hot water tap, 14 ... Proportional valve , 15 ... Remote control.
Claims (1)
熱により加熱して出湯路に供給する熱交換器と、 上記熱交換器を流れる流量を検出する流量センサと、 供給される水の温度を検出する入水温度検出手段と、 上記出湯路にて湯の温度を検出する出湯温度センサと、 上記バーナの燃焼量を調節する燃焼量調節手段とを備え
た給湯器において、 上記流量センサの検出値と、上記入水温度検出手段の検
出値と、上記出湯温度センサの検出値とに基づいて算出
した加熱量が所定値を越えた場合には、該加熱量が該所
定値以下になるようにバーナの燃焼量を調節することを
特徴とする給湯器。1. A heat exchanger for heating water supplied from a water supply passage by combustion heat of a burner and supplying the water to a hot water passage, a flow sensor for detecting a flow amount flowing through the heat exchanger, and a supplied water. A water inlet temperature detecting means for detecting a temperature, a hot water temperature sensor for detecting a temperature of hot water in the hot water path, and a combustion amount adjusting means for adjusting a combustion amount of the burner; If the heating amount calculated based on the detection value, the detection value of the incoming water temperature detection means, and the detection value of the tap water temperature sensor exceeds a predetermined value, the heating amount becomes equal to or less than the predetermined value. A water heater characterized in that the burner combustion amount is adjusted as described above.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17749296A JP3769660B2 (en) | 1996-06-17 | 1996-06-17 | Water heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17749296A JP3769660B2 (en) | 1996-06-17 | 1996-06-17 | Water heater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH102608A true JPH102608A (en) | 1998-01-06 |
JP3769660B2 JP3769660B2 (en) | 2006-04-26 |
Family
ID=16031855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17749296A Expired - Fee Related JP3769660B2 (en) | 1996-06-17 | 1996-06-17 | Water heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3769660B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112524633A (en) * | 2020-11-30 | 2021-03-19 | 芜湖美的厨卫电器制造有限公司 | Control method of water heater, water heater and readable storage medium |
-
1996
- 1996-06-17 JP JP17749296A patent/JP3769660B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112524633A (en) * | 2020-11-30 | 2021-03-19 | 芜湖美的厨卫电器制造有限公司 | Control method of water heater, water heater and readable storage medium |
CN112524633B (en) * | 2020-11-30 | 2024-07-16 | 芜湖美的厨卫电器制造有限公司 | Water heater control method, water heater and readable storage medium |
Also Published As
Publication number | Publication date |
---|---|
JP3769660B2 (en) | 2006-04-26 |
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