JPS6115016A - Controlling system of hot-water supplier - Google Patents
Controlling system of hot-water supplierInfo
- Publication number
- JPS6115016A JPS6115016A JP59134102A JP13410284A JPS6115016A JP S6115016 A JPS6115016 A JP S6115016A JP 59134102 A JP59134102 A JP 59134102A JP 13410284 A JP13410284 A JP 13410284A JP S6115016 A JPS6115016 A JP S6115016A
- Authority
- JP
- Japan
- Prior art keywords
- water
- temperature
- hot
- burner
- signal
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
- F23N1/082—Regulating fuel supply conjointly with another medium, e.g. boiler water using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2223/00—Signal processing; Details thereof
- F23N2223/22—Timing network
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/18—Measuring temperature feedwater temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/14—Fuel valves electromagnetically operated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2241/00—Applications
- F23N2241/04—Heating water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は瞬間式給湯機の制御装置に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a control device for an instantaneous water heater.
瞬間式給湯機の概略構造を第4図に示す。図において、
燃焼筒1の上部にフィン型熱交換器2が配設され、下部
には通常、3本のガンタイプバーナ3,4.5が配設さ
れている。熱交換器2への給水配管にはフローセンサ2
1が設けられ、熱交換器2本体の水配管にはその中途部
分に水温セ/すとしてのサーミスタ6が設けられている
。バーナ3,4.5の給油配管には電磁弁31 、41
。Figure 4 shows the schematic structure of the instant water heater. In the figure,
A fin-type heat exchanger 2 is arranged in the upper part of the combustion cylinder 1, and three gun-type burners 3, 4.5 are usually arranged in the lower part. Flow sensor 2 is installed in the water supply piping to heat exchanger 2.
1 is provided, and a thermistor 6 as a water temperature sensor is provided in the water piping of the main body of the heat exchanger 2 in the middle thereof. Solenoid valves 31 and 41 are installed in the oil supply pipes of burners 3 and 4.5.
.
51がそれぞれ設けられている。サーミスタ6゜フロー
センサ21等からの信号は制御回路7へ送られる。制御
回路7ではこれらの信号にもとづいて電磁弁31,41
.51の開閉を制御すると共に。51 are provided respectively. Signals from the thermistor 6° flow sensor 21, etc. are sent to the control circuit 7. The control circuit 7 operates the solenoid valves 31 and 41 based on these signals.
.. In addition to controlling the opening and closing of 51.
燃焼用送風機82点火装置(図示省略)等を制御する。The combustion blower 82 controls the ignition device (not shown) and the like.
この給湯機は、フローセンサ21から信号が送出されて
いる間だけ給湯可能である。すなわち。This water heater can supply hot water only while a signal is being sent from the flow sensor 21. Namely.
電磁弁31,41.’51を開くにはフローセンサ21
からの信号を必要とする。給水配管中の水の流れが検出
されると、・ぐ−ナ3,4.5が点火され。Solenoid valves 31, 41. Flow sensor 21 to open '51
Requires a signal from When the flow of water in the water supply pipe is detected, gunners 3 and 4.5 are ignited.
熱交換器2中を通る水は加熱されず湯になシ出湯配管か
ら所定場所へ給湯される。湯温はバーナ3゜4.5の点
火、消火制御によル設定温度に維持される。勿論、この
設定温度は可変である。The water passing through the heat exchanger 2 is not heated, but instead becomes hot water and is supplied to a predetermined location from the hot water piping. The water temperature is maintained at the set temperature by controlling the ignition and extinguishing of the burner 3°4.5. Of course, this set temperature is variable.
ところで、この種の瞬間式給湯機では、一旦給湯を停止
し再給湯時に適温の湯が出た後に、少しの間冷水が出て
、その後適温になるという現象がある。この現象は熱交
換器、2内に冷水のサンドイッチ状態が生ずることによ
る。このことを第5図(a)〜(、)を参照して説明す
る。By the way, in this type of instantaneous water heater, there is a phenomenon in which after the hot water supply is stopped once and hot water at an appropriate temperature is dispensed when hot water is re-supplied, cold water is dispensed for a short period of time, and then the temperature returns to the appropriate temperature. This phenomenon is due to the creation of a cold water sandwich within the heat exchanger, 2. This will be explained with reference to FIGS. 5(a) to 5(,).
第5図(、)において、給湯継続中は適切な燃焼制御が
行われているので、適温の湯が出ている。In FIG. 5 (,), since appropriate combustion control is being performed while hot water supply continues, hot water at an appropriate temperature is flowing out.
第5図(b)で給湯を停止すると、フローセンサの信号
で燃焼はただちに停止する。When hot water supply is stopped in FIG. 5(b), combustion is immediately stopped by a signal from the flow sensor.
給湯停止後、数秒〜数分経過した後、給湯を再開すると
、第5図(c)の如く、残ル湯が給湯されるが給水配管
からの供給水がサーミスタ6周辺に到達するまで燃焼は
停止したままである。When the hot water supply is resumed several seconds to several minutes after the hot water supply is stopped, the remaining hot water is supplied as shown in Fig. 5(c), but combustion does not occur until the water supplied from the water supply pipe reaches the area around the thermistor 6. It remains stopped.
第5図(d)において、低温の供給水がサーミスタ3周
辺に到達すると、燃焼が再開する。In FIG. 5(d), when the low-temperature supply water reaches the vicinity of the thermistor 3, combustion resumes.
第5図(、)において、燃焼が始まっても熱交換器内の
水の一部は温度上昇することなく出湯配管から出てしま
う。In FIG. 5 (,), even if combustion starts, some of the water in the heat exchanger comes out of the hot water tap piping without increasing its temperature.
本発明は、上記の如き給湯温度の不安定という問題点を
解消した給湯機の制御装置を提供しようとするものであ
る。The present invention aims to provide a control device for a water heater that solves the problem of unstable hot water supply temperature as described above.
本発明においては、水温センサ付近の水温が設定温度ま
で上昇して点火信号が出ていない場合でも、給湯再開時
には所定時間だけ強制的に燃焼を行う回路を加えたこと
を特徴とする。すなわち。The present invention is characterized by the addition of a circuit that forcibly performs combustion for a predetermined period of time when hot water supply is restarted even when the water temperature near the water temperature sensor has risen to the set temperature and no ignition signal is output. Namely.
フローセンサからの信号で給水開始時からの給水量を検
出する回路と流速を検出する回路とを含んで、水温セン
サ付近の水温が設定温度を越えている場合でも、給湯開
始時にはあらかじめ定められた第10給水量から第2の
給水量に至るまでの間だけ流速に応じた熱量による燃焼
を行う回路を備えている。It includes a circuit that detects the amount of water supplied from the start of water supply using a signal from the flow sensor, and a circuit that detects the flow rate. A circuit is provided that performs combustion using an amount of heat depending on the flow rate only from the tenth water supply amount to the second water supply amount.
以下に本発明の詳細な説明する。 The present invention will be explained in detail below.
第1図は本発明の一実施例のブロック図であり。FIG. 1 is a block diagram of one embodiment of the present invention.
第4図に示した給湯機に適用する場合について説明する
。したがって、第4図と同一部分は同一参照番号で示す
。A case where the present invention is applied to the water heater shown in FIG. 4 will be explained. Therefore, the same parts as in FIG. 4 are designated by the same reference numerals.
バーナ3,4.5への燃料油供給配管にそれぞれ、電磁
弁31,41.51が設けられている。また。Solenoid valves 31, 41.51 are provided in the fuel oil supply pipes to the burners 3, 4.5, respectively. Also.
熱交換器の中途配管内に水温検出用のサーミスタ6が設
けられている。電磁弁31は温度設定器33からの信号
とサーミスタ6からの信号とを入力とする比較器32の
出力で制御される。電磁弁41は温度設定器43からの
信号とサーミスタ6からの信号とを入力とする比較器4
2の出力で一制御され、同様にして、電磁弁51は比較
器52の出力で制御される。なお、前述したように、比
較器と電磁弁との間にはそれぞれ、フローセンサ21か
らの信号でつくられる通水信号を一方の入力とするアン
ドグー)34.44.54が設けられている。A thermistor 6 for detecting water temperature is provided in the intermediate piping of the heat exchanger. The solenoid valve 31 is controlled by the output of a comparator 32 which receives a signal from the temperature setting device 33 and a signal from the thermistor 6 as input. The solenoid valve 41 has a comparator 4 which receives a signal from the temperature setting device 43 and a signal from the thermistor 6 as input.
Similarly, the solenoid valve 51 is controlled by the output of the comparator 52. Note that, as described above, between the comparators and the electromagnetic valves, there are provided the AND/GO valves 34, 44, and 54, each of which receives a water flow signal generated from the signal from the flow sensor 21 as one of its inputs.
したがって、水配管からの給水、言い換えれは出湯配管
からの給湯が行われていなければ、電磁弁は開かないし
、燃焼中に給湯が停められれば自動的に消火することと
なる。Therefore, unless water is being supplied from the water piping, or in other words, hot water is not being supplied from the hot water piping, the solenoid valve will not open, and if the hot water supply is stopped during combustion, the fire will be automatically extinguished.
電磁弁31の制御系では温度設定器33で設定した第1
0設定温度T1に対応した信号とサーミスタ6から得ら
れた水温検出信号の比較を行い、設定温度TIの方が高
ければ電磁弁31を開として燃焼を継続する。そして、
サーミスタ6の周辺水温が設定温度近くまで達すると、
電磁弁31は閉となシ消火する。In the control system of the solenoid valve 31, the first temperature set by the temperature setting device 33 is
The signal corresponding to the zero set temperature T1 is compared with the water temperature detection signal obtained from the thermistor 6, and if the set temperature TI is higher, the solenoid valve 31 is opened to continue combustion. and,
When the water temperature around the thermistor 6 reaches close to the set temperature,
The solenoid valve 31 is closed to extinguish the fire.
電磁弁41の制御系では、温度設定器43の第2の設定
温度T2は温度設定器33の設定値TIよυ数℃〜数十
℃低くされる。In the control system of the electromagnetic valve 41, the second set temperature T2 of the temperature setter 43 is lowered by a few degrees Celsius to several tens of degrees Celsius than the set value TI of the temperature setter 33.
更に、電磁弁5Jの制御系では、温度設定器53の第3
の設定温度T3が設定温度T2 より数℃〜数十℃低
くされる。Furthermore, in the control system of the solenoid valve 5J, the third temperature setting device 53
The set temperature T3 is set several degrees Celsius to several tens of degrees Celsius lower than the set temperature T2.
したがって、この装置によれば給水状態になれば、バー
ナ3,4.5共に点火され燃焼を始める。Therefore, according to this device, when water is supplied, both burners 3 and 4.5 are ignited and combustion begins.
熱交換器中の水温が上昇して第3の設定温度T3に達す
るとバーナ5が消火し、第2の設定温度T2に達すれは
バーナ4が消火する。更に、温度が上昇して第10設定
温度TtK達すると、バーナ3も消火する。When the water temperature in the heat exchanger rises and reaches the third set temperature T3, the burner 5 is extinguished, and when the water temperature reaches the second set temperature T2, the burner 4 is extinguished. Furthermore, when the temperature rises and reaches the tenth set temperature TtK, the burner 3 is also extinguished.
本発明では、この装置に更に1強制燃焼回路を設けたこ
とを・特徴とする。この回路は、フローセンサ21から
の信号を利用して、アンドゲート34.44.54の出
力に無関係に流速に応じた燃焼を行わせる回路である。The present invention is characterized in that this device is further provided with one forced combustion circuit. This circuit is a circuit that uses a signal from the flow sensor 21 to perform combustion according to the flow velocity regardless of the output of the AND gates 34, 44, and 54.
ここで、フローセンサ21は、第2図にその概略構成を
示すように、流速に比例して回転数が変化するロータ2
11の回転をセンサ212で検出するものであシ、単位
時間当たシのパルス数が流速に比例している・やルス信
号を発注する。Here, the flow sensor 21 has a rotor 2 whose rotational speed changes in proportion to the flow velocity, as shown in FIG.
11 is detected by a sensor 212, and a pulse signal is generated in which the number of pulses per unit time is proportional to the flow velocity.
強制燃焼回路は、カウンタ72aとデコーダ73aとで
フローセンサ21からの/セルス状信号を給水開始時点
よシ計数し始め、あらかじめ定められた値になると信号
を送出することにより、あらかじめ定められた第10給
水量を検出する回路と、同様にして、カウンタ26とデ
コーダ36とであらかじめ定められた第2の給水量を検
出する回路と、これら2つの給水量検出回路の出力で電
磁弁31,41.51開閉用の信号をつくる演算回路7
4と2周波数−電圧変換器75と比較器76゜77.7
8とにより給水の流速があらかじめ定められた高、中、
小のいずれの範囲に属するかを検出′する回路とを含む
。The forced combustion circuit starts counting the signal from the flow sensor 21 at the start of water supply using the counter 72a and the decoder 73a, and sends out a signal when it reaches a predetermined value. 10 A circuit for detecting the water supply amount, a circuit for similarly detecting a second water supply amount predetermined by the counter 26 and a decoder 36, and a solenoid valve 31, 41 using the output of these two water supply amount detection circuits. .51 Arithmetic circuit 7 that creates opening/closing signals
4 and 2 frequency-voltage converter 75 and comparator 76°77.7
8, the flow rate of water supply is predetermined as high, medium,
and a circuit for detecting which range of the small range it belongs to.
電磁弁31,41.51はそれぞれ、アンドゲート34
.44.54の出力の他に、アンドダート35゜45.
55の出力でも開閉可能に構成されている。The solenoid valves 31, 41.51 are each connected to an AND gate 34.
.. In addition to the output of 44.54, and dart 35°45.
It is configured so that it can be opened and closed even with an output of 55.
すなわち、アンドゲート35には演算回路74の出力と
低流速検出用の比較器78の出力とが入力されている。That is, the output of the arithmetic circuit 74 and the output of the comparator 78 for low flow velocity detection are input to the AND gate 35.
また、アンドゲート45には演算回路74の出力と中流
速検出用の比較器77の出力が、アンドダート55には
演算回路74の出力と高流速検出用の比較器76の出力
がそれぞれ入力されている。Further, the output of the arithmetic circuit 74 and the output of the comparator 77 for medium flow velocity detection are input to the AND gate 45, and the output of the arithmetic circuit 74 and the output of the comparator 76 for high flow velocity detection are input to the AND gate 55. ing.
次に、各部の入出力信号波形を示した第3図を参照して
動作を説明する。Next, the operation will be explained with reference to FIG. 3 showing input/output signal waveforms of each part.
この回路は、給湯を開始したと同時に、フo −センサ
21からのパルス信号がカウンタ72a。In this circuit, at the same time that hot water supply starts, a pulse signal from the fo sensor 21 is sent to the counter 72a.
72bに送出可能となる。72b.
第3図の期間a+bは熱交換器内の水が低温状態にある
場合の給湯の推移を示した波形図である。Period a+b in FIG. 3 is a waveform chart showing the transition of hot water supply when the water in the heat exchanger is in a low temperature state.
カウンタ72a、?2bは到来するパルス信号を゛計数
し、デコーダ73a、73bはあらかじめ定められた計
数値ml + m2 (町〈m2)で信号を出力する。Counter 72a, ? 2b counts incoming pulse signals, and decoders 73a and 73b output a signal at a predetermined count value ml+m2 (m2).
演算回路74はデコーダ73aの町計数時からデコーダ
73bのm2計数時までの間ハイレベルの信号を出力す
る。一方、この間の給水が8例えば中流速であれは、比
較器77.78から・・イレベル信号が出力され、この
ことにより電磁弁31.41には演算回路74の出力で
規定される時間tだけ開となる信号が送られる。しかし
、この時には既に電磁弁31.41にはアンドグー)3
4.44から燃焼信号が送られているので、前記信号は
無効となシ。The arithmetic circuit 74 outputs a high level signal from the time when the decoder 73a counts the town until the time when the decoder 73b counts m2. On the other hand, if the water supply during this period is 8, for example, at a medium flow rate, the comparators 77, 78 output a level signal, and this causes the solenoid valve 31, 41 to be supplied for the time t specified by the output of the arithmetic circuit 74. A signal to open is sent. However, at this time, the solenoid valve 31.
Since the combustion signal is being sent from 4.44, the signal is invalid.
アンドグー)34.44に基づく信号により燃焼する。Andgoo) 34. Burns by a signal based on 44.
凌た。給水の流速が低速であれば、比較器78のみがハ
イレベル信号を出力することにより、バーナ3に付属し
た電磁弁31のみに信号が送られるが、この場合でもバ
ーナ3はアンドゲート34の信号に基づき燃焼する。Surpassed. If the flow rate of the water supply is low, only the comparator 78 outputs a high level signal, and a signal is sent only to the solenoid valve 31 attached to the burner 3. However, even in this case, the burner 3 receives the signal from the AND gate 34. Burn based on.
第3図の期間b + cを参照して、サーミスタ6周辺
の水温が設定温度T2を越えてバーナ5に続いてバーナ
4が消火した後、給湯を中止し、一定時間再び給湯を開
始する場合について説明する。時刻tlに給湯を再開す
ると、デコーダ73g、73bはそれぞれ計数値町+m
2で信号を出力し、演算回路74からはm1計数時から
m2計数時までの間・・イレペル信号が出力される。こ
の結果、アンドダート35,45を介して電磁弁31.
41に信号が送られ、バーナ4が時間tだけ燃焼する。Referring to period b + c in Figure 3, when the water temperature around the thermistor 6 exceeds the set temperature T2 and burner 4 is extinguished following burner 5, hot water supply is stopped and hot water supply is restarted for a certain period of time. I will explain about it. When hot water supply is restarted at time tl, the decoders 73g and 73b each have a count value of +m.
2, and the arithmetic circuit 74 outputs an irregular signal from m1 counting to m2 counting. As a result, the solenoid valve 31.
A signal is sent to 41 and burner 4 burns for a time t.
なお2バーナ3については、アンドゲート34からの信
号にもとづいて燃焼している。したがって、この場合に
はバーナ4の強制的な燃焼によ)冷水のサンドインチ現
象が防止され、第3図中、破線で示すような従来生じて
いた熱交換器内の温度分布の偏在も生じなくなる。Note that the second burner 3 burns based on the signal from the AND gate 34. Therefore, in this case, the forced combustion of the burner 4) prevents the cold water sandwich phenomenon, and also causes the uneven temperature distribution inside the heat exchanger, which conventionally occurs, as shown by the broken line in Figure 3. It disappears.
カウンタ72a、72bの計数値は給水量に対応してい
ることは言うまでもない。そして、デコーダ73a、7
3bで設定されるml r ml はそれぞれ、熱交換
器2の水容量を考慮して1通常、町は水容量のμの給水
量対応値+mfiは水容量とほぼ等しい給水量対応値と
なるように設定される。It goes without saying that the counts of the counters 72a and 72b correspond to the amount of water supplied. And decoders 73a, 7
ml r ml set in 3b is calculated by taking into account the water capacity of the heat exchanger 2. Normally, in a town, the water capacity μ corresponds to the water supply amount + mfi is a value corresponding to the water supply amount that is almost equal to the water capacity. is set to
なお、実施例ではバーナを3本用いてその点火。In addition, in the example, three burners were used for ignition.
消火による3段階の発熱食切ル替えを行う装置について
説明したが1本発明はバーナ1本による点火、消火の制
御は勿論の事、バーナ2あるいは4本以上による切り替
え制御にも適用できる。Although a device for switching exothermic food in three stages by extinguishing has been described, the present invention can be applied not only to control of ignition and extinguishing using one burner, but also to control of switching using two or four or more burners.
以上説明してきたように1本発明によれは給湯量の大小
にかかわらず給湯再開時の熱交換器内の冷水サンドイン
チ現象を防止でき、この結果、一時的に冷水が出るとい
う欠点の無い給湯機を提供できる。As explained above, one feature of the present invention is that the cold water sandwich phenomenon in the heat exchanger when hot water supply is resumed can be prevented regardless of the amount of hot water supply, and as a result, the hot water supply does not have the drawback of temporary cold water coming out. We can provide equipment.
第1図は本発明の一実施例のブロック図、第2図はその
中のフローセンサの断面図、第3図は熱交換器内の水温
変化と第1図の各部の入出力信号波形のタイムチャート
図、第4図は本発明が適用される給湯機の概略構成図、
第5図(、)〜(、)は従来例Q欠点を説明するための
図。
図中、1は燃焼筒、2は熱交換器、3,4.5はバーナ
。Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a sectional view of a flow sensor therein, and Fig. 3 shows changes in water temperature in the heat exchanger and input/output signal waveforms of each part in Fig. 1. A time chart diagram, FIG. 4 is a schematic configuration diagram of a water heater to which the present invention is applied,
FIGS. 5(,) to 5(,) are diagrams for explaining the drawbacks of conventional example Q. In the figure, 1 is a combustion tube, 2 is a heat exchanger, and 3 and 4.5 are burners.
Claims (1)
サの信号を利用して、給湯が行われている間、検出水温
と設定温度との差に応じて点火、消火の燃焼制御を行う
装置において、前記水配管にフローセンサを設け、該フ
ローセンサからの信号により給水開始時からの給水量を
検出する回路と流速を検出する回路とを含み、給湯開始
時にはあらかじめ定められた第10水量を検出してから
第2の水量を検出するまで前記流速に応じた熱量での燃
焼を強制的に行う回路を備えたことを特徴とする給湯機
の制御装置。1. Combustion control for ignition and extinguishment according to the difference between the detected water temperature and the set temperature while hot water is being supplied, using the signal from the water temperature sensor installed in the middle of the water pipe of the heat exchanger. The water piping is provided with a flow sensor, and the apparatus includes a circuit for detecting the amount of water supplied from the start of water supply and a circuit for detecting the flow velocity based on a signal from the flow sensor, and a circuit for detecting the flow rate from the start of water supply. 1. A control device for a water heater, comprising a circuit that forcibly performs combustion with an amount of heat according to the flow rate from when a second amount of water is detected to when a second amount of water is detected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59134102A JPS6115016A (en) | 1984-06-30 | 1984-06-30 | Controlling system of hot-water supplier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59134102A JPS6115016A (en) | 1984-06-30 | 1984-06-30 | Controlling system of hot-water supplier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6115016A true JPS6115016A (en) | 1986-01-23 |
JPH0239701B2 JPH0239701B2 (en) | 1990-09-06 |
Family
ID=15120493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59134102A Granted JPS6115016A (en) | 1984-06-30 | 1984-06-30 | Controlling system of hot-water supplier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6115016A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62179562U (en) * | 1986-04-30 | 1987-11-14 | ||
JPH01114616A (en) * | 1987-10-28 | 1989-05-08 | Noritz Corp | Hot water feeder |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58115242A (en) * | 1981-12-26 | 1983-07-08 | Yamatake Honeywell Co Ltd | Temperature controller of instantaneous water heater |
-
1984
- 1984-06-30 JP JP59134102A patent/JPS6115016A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58115242A (en) * | 1981-12-26 | 1983-07-08 | Yamatake Honeywell Co Ltd | Temperature controller of instantaneous water heater |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62179562U (en) * | 1986-04-30 | 1987-11-14 | ||
JPH01114616A (en) * | 1987-10-28 | 1989-05-08 | Noritz Corp | Hot water feeder |
JPH0331970B2 (en) * | 1987-10-28 | 1991-05-09 | Noritsu Kk |
Also Published As
Publication number | Publication date |
---|---|
JPH0239701B2 (en) | 1990-09-06 |
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