JP2565102B2 - Freezing prevention device for forced air supply / exhaust water heater - Google Patents
Freezing prevention device for forced air supply / exhaust water heaterInfo
- Publication number
- JP2565102B2 JP2565102B2 JP5205906A JP20590693A JP2565102B2 JP 2565102 B2 JP2565102 B2 JP 2565102B2 JP 5205906 A JP5205906 A JP 5205906A JP 20590693 A JP20590693 A JP 20590693A JP 2565102 B2 JP2565102 B2 JP 2565102B2
- Authority
- JP
- Japan
- Prior art keywords
- bath
- hot water
- water supply
- heat exchange
- turned
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Combustion (AREA)
- Control For Baths (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は強制給排気型給湯器の凍
結防止装置に関し、詳しくは給湯用熱交換缶体の他に風
呂加熱用熱交換缶体を比較的近接して並設配置し、強制
給排気によって各熱交換缶体内での燃焼を行い、給湯及
び風呂加熱を行うことができるようにした強制給排気型
給湯器における凍結防止装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a freeze prevention device for a forced air supply / exhaust type water heater, and more specifically, in addition to a hot water supply heat exchange can body, a bath heating heat exchange can body is arranged relatively close to each other. The present invention relates to an antifreezing device for a forced air supply / exhaust type water heater, which is capable of performing hot water supply and bath heating by performing combustion in each heat exchange can body by forced air supply / exhaust.
【0002】[0002]
【従来の技術】給湯用熱交換缶体と風呂加熱用熱交換缶
体とを1つのケースの中に並設配置して給湯と風呂加熱
を行うことができるようにした給湯器が従来より提供さ
れている。このような給湯器においては、スペースの関
係から前記給湯用熱交換缶体と風呂加熱用熱交換缶体と
は相互に近接して並設される場合が多い。そしてこの場
合、前記両熱交換缶体間の空間に、それぞれ給湯用熱交
換器の温度を検出してこれが0℃付近まで低下するとス
イッチオンする給湯側凍結防止運転スイッチと、風呂加
熱用熱交換器の温度を検出してこれが0℃付近まで低下
するとスイッチオンする風呂側凍結防止運転スイッチと
が設けられ、それぞれ、給湯器側では給湯側凍結防止運
転スイッチがオンすることで、給湯用熱交換器に取り付
けた電熱ヒータの加熱が開始され、風呂加熱側では風呂
側凍結防止運転スイッチがオンすることで、風呂循環ポ
ンプによる循環が開始されるようになされている。2. Description of the Related Art A water heater in which a hot water supply heat exchange can and a bath heating heat exchange can are arranged side by side in one case to perform hot water supply and bath heating has been provided. Has been done. In such a water heater, in many cases, the hot water supply heat exchange can and the bath heating heat exchange can are arranged in close proximity to each other due to space limitations. In this case, a hot water supply side anti-freezing operation switch that detects the temperature of the hot water supply heat exchanger in the space between the two heat exchange cans and switches on when the temperature drops to around 0 ° C., and a heat exchange for bath heating There is a bath-side antifreeze operation switch that is turned on when the temperature of the water heater is detected and drops to around 0 ° C. On the water heater side, the hot-water supply side antifreeze operation switch is turned on. The heating of the electric heater attached to the vessel is started, and when the bath side freeze prevention operation switch is turned on at the bath heating side, circulation by the bath circulation pump is started.
【0003】[0003]
【発明が解決しようとする課題】ところが、上記従来の
給湯器においては、特に強制給排気型の給湯器において
は、燃焼運転を行っていない場合には、ケース内の空気
の流通が悪いこともあって、前記給湯器側凍結防止運転
スイッチのオンにより電熱ヒータがオンすると、その電
熱ヒータの影響によって周囲が適当に加温され、比較的
近くにある風呂側凍結防止運転スイッチの温度が上が
り、このため風呂側も凍結防止運転を行う必要があるに
も関わらず、風呂側凍結防止運転スイッチがオンせず、
凍結防止運転を開始しないという問題があった。However, in the above-mentioned conventional water heater, particularly in the forced air supply / exhaust type water heater, when the combustion operation is not performed, the air flow in the case may be poor. Then, when the electric heater is turned on by turning on the water heater side anti-freezing operation switch, the surroundings are appropriately heated by the influence of the electric heater, and the temperature of the bath side anti-freezing operation switch located relatively near rises. For this reason, the bath side antifreeze operation switch does not turn on, even though the bath side must also perform antifreeze operation,
There was a problem that the freeze prevention operation was not started.
【0004】そこで、本発明は上記従来の欠点を解消
し、風呂側凍結防止運転が給湯側の電熱ヒータによって
悪影響をうけることなく、必要時には確実に風呂側凍結
防止運転がなされるようにし、給湯側の凍結防止のみな
らず風呂側の凍結防止も確実に行うことができる強制給
排気型給湯器の凍結防止装置の提供を目的とする。Therefore, the present invention solves the above-mentioned drawbacks of the prior art, and ensures that the bath-side antifreezing operation is reliably performed when necessary without the bath-side antifreezing operation being adversely affected by the electric heater on the hot-water supply side. It is an object of the present invention to provide a freezing prevention device for a forced air supply / exhaust water heater that can surely prevent not only the freezing on the side but also the freezing on the bath side.
【0005】[0005]
【課題を解決するための手段】上記目的を達成するた
め、本発明の強制給排気型給湯器の凍結防止装置は、ケ
ース内に給湯用熱交換缶体と風呂加熱用熱交換缶体とを
並設配置して強制給排気により燃焼運転を行うと共に、
前記両熱交換缶体間の空間にそれぞれ給湯用熱交換器の
温度を検出してこれが0℃付近まで低下するとスイッチ
オンする給湯側凍結防止運転スイッチと風呂加熱用熱交
換器の温度を検出してこれが0℃付近まで低下するとス
イッチオンする風呂側凍結防止運転スイッチとを設け、
給湯側は前記給湯側凍結防止運転スイッチのオンによっ
て給湯用熱交換器の一部に取り付けた電熱ヒータによる
加熱を開始し、風呂加熱側は前記風呂側凍結防止運転ス
イッチのオンによって風呂循環ポンプによる循環を開始
するようにして凍結を防止するようにした強制給排気型
給湯器の凍結防止装置であって、風呂側凍結防止運転に
ついては、前記給湯用熱交換缶体と風呂加熱用熱交換缶
体の両方が燃焼を行っていない場合に前記給湯側凍結防
止運転スイッチだけがオンした場合にも、前記風呂循環
ポンプを運転して凍結防止運転を行うよう構成したコン
トローラを設けていることを特徴としている。In order to achieve the above-mentioned object, a freezing prevention device for a forced air supply / exhaust type water heater according to the present invention includes a heat exchange can body for hot water supply and a heat exchange can body for bath heating in a case. Combining them to perform combustion operation by forced air supply and exhaust,
The temperature of the hot water supply heat exchanger is detected in the space between the two heat exchange cans, and when the temperature drops to around 0 ° C, the hot water supply side antifreeze operation switch and the temperature of the bath heating heat exchanger are detected. A bath-side antifreeze operation switch that turns on when the temperature drops to around 0 ° C is installed.
The hot water supply side starts heating by the electric heater attached to a part of the hot water supply heat exchanger by turning on the hot water supply side antifreezing operation switch, and the bath heating side by the bath circulation pump by turning on the bath side antifreezing operation switch A freezing prevention device for a forced air supply / exhaust type water heater that starts circulation so as to prevent freezing. Regarding the bath side freezing prevention operation, the hot water supply heat exchange can body and the bath heating heat exchange can Con only the hot water supply side antifreezing operation switch when both of the body is not performing combustion even when turned on, which is configured to perform freezing prevention operation by driving the bath circulation pump
It is characterized by having a trolley .
【0006】[0006]
【作用】上記本発明の特徴によれば、給湯用熱交換缶体
と風呂加熱用熱交換缶体の何れもが燃焼を行っていない
場合には、風呂側の凍結防止運転は、風呂側凍結防止運
転スイッチのオンによってのみならず、風呂側凍結防止
運転スイッチがオンしなくても給湯側凍結防止運転スイ
ッチがオンした場合には、運転が開始される。即ち、給
湯用熱交換缶体と風呂加熱用熱交換缶体の何れの缶体に
おいても燃焼が行われていない場合には、何れの熱交換
缶体の熱交換器においても同程度の温度状況になってい
ると考えることができるので、従って、給湯側凍結運転
スイッチがオンすれば、風呂側凍結防止運転スイッチが
例えオンしていない場合においても、この原因が給湯側
の電熱ヒータによる影響と考え、実際には風呂側の熱交
換器も0℃付近まで低下しているとして、風呂側の凍結
防止運転を開始するのである。これによって風呂側の熱
交換器や循環ポンプの凍結を確実に予防することができ
る。According to the features of the present invention described above, when neither the hot water supply heat exchange can body nor the bath heating heat exchange can body is burning, the bath side freeze prevention operation is performed. The operation is started not only by turning on the prevention operation switch, but also when the hot water supply side freeze prevention operation switch is turned on even if the bath side freeze prevention operation switch is not turned on. That is, when combustion is not performed in either the hot water supply heat exchange can body or the bath heating heat exchange can body, the same temperature condition is obtained in any heat exchange can body heat exchanger. Therefore, if the hot water supply side freeze operation switch is turned on, even if the bath side anti-freeze operation switch is not turned on, this causes the effect of the electric heater on the hot water supply side. Considering this, it is assumed that the heat exchanger on the bath side has actually dropped to around 0 ° C., and the antifreezing operation on the bath side is started. This can reliably prevent freezing of the heat exchanger and circulation pump on the bath side.
【0007】[0007]
【実施例】図1は本発明装置の実施例を示す断面構成
図、図2は給湯側の凍結防止制御例を示すフローチャー
ト、図3、図4、図5はそれぞれ風呂側の凍結防止制御
例を示すフローチャートである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view showing an embodiment of the device of the present invention, FIG. 2 is a flow chart showing an example of antifreezing control on the hot water supply side, and FIGS. It is a flowchart showing.
【0008】ケース1内に、給湯用熱交換缶体10と風呂
用熱交換缶体20が比較的近接して並列して設けられ、そ
れらの間に空間Sを形成している。前記給湯用熱交換缶
体10と風呂用熱交換缶体20は共通の排気筒30に接続され
ている。また前記ケース1には給気筒40が接続され、外
部からの空気が供給されるようになっている。この排気
筒30と給気筒40によって強制給排気がなされる。前記給
湯用熱交換缶体10、風呂用熱交換缶体20には、それぞれ
下部に送風ファン11、21が設けられ、また内部に燃焼バ
ーナ12、22が設けられている。また燃焼バーナ12、22の
上方にそれぞれ給湯用熱交換器13、風呂加熱用熱交換器
23が設けられている。In the case 1, a hot water supply heat exchange can body 10 and a bath heat exchange can body 20 are provided relatively close to each other in parallel, and a space S is formed between them. The hot water supply heat exchange canister 10 and the bath heat exchange canister 20 are connected to a common exhaust pipe 30. A cylinder 40 is connected to the case 1 so that air is supplied from the outside. Forced supply / exhaust is performed by the exhaust cylinder 30 and the supply cylinder 40. The heat exchange can body 10 for hot water supply and the heat exchange can body 20 for bath are provided with blower fans 11 and 21, respectively, at their lower portions, and combustion burners 12 and 22 are provided therein. In addition, above the combustion burners 12 and 22, there are a heat exchanger 13 for hot water supply and a heat exchanger for bath heating, respectively.
23 are provided.
【0009】前記給湯用熱交換缶体10の給湯用熱交換器
13は、そのパイプが一部、缶体10から空間Sに突出し、
その突出した部分に給湯側凍結防止運転スイッチ14(以
下Q側F点スイッチと称する)と電熱ヒータ15とが設け
られている。また風呂加熱用熱交換缶体20の風呂加熱用
熱交換器23も、そのパイプが一部、缶体20から空間Sに
突出し、その突出した部分に風呂側凍結防止運転スイッ
チ24(以下F側F点スイッチと称する)が設けられてい
る。前記Q側F点スイッチ14は、給湯用熱交換器13の温
度が0℃付近まで低下するとスイッチオンするスイッチ
である。また同様にF側F点スイッチ24は風呂加熱用熱
交換器23が0℃付近まで低下するとスイッチオンするス
イッチである。前記電熱ヒータ15は給湯用熱交換器13が
凍結するのを防止するための加熱ヒータである。Hot water heat exchanger of the hot water heat exchange can body 10
In 13, a part of the pipe projects from the can body 10 into the space S,
A hot water supply side anti-icing operation switch 14 (hereinafter referred to as a Q side F point switch) and an electric heater 15 are provided at the protruding portion. Also, in the bath heating heat exchanger 23 of the bath heating heat exchange canister 20, a part of its pipe projects from the can body 20 into the space S, and the bath side freeze prevention operation switch 24 (hereinafter referred to as F side) An F point switch) is provided. The Q-side F point switch 14 is a switch that is turned on when the temperature of the hot water supply heat exchanger 13 decreases to around 0 ° C. Similarly, the F-side F-point switch 24 is a switch that is turned on when the bath heating heat exchanger 23 is lowered to around 0 ° C. The electric heater 15 is a heater for preventing the heat exchanger 13 for hot water supply from freezing.
【0010】前記風呂加熱用熱交換器23は追い焚き循環
路50を介して浴槽60に接続している。追い焚き循環路50
には風呂循環ポンプ51と風呂温度センサ52と水流スイッ
チ53が設けられている。前記ケース1内の下部の隅に外
気温センサ70が設けられ、雰囲気温度を検出するように
している。符号80はコントローラで、各センサからの情
報、図示しないリモートコントローラからの指令を入力
し、給湯器各部に所定の動作指令を出力する。The bath heating heat exchanger 23 is connected to a bath 60 through a reheating circulation path 50. Reheating circuit 50
A bath circulation pump 51, a bath temperature sensor 52, and a water flow switch 53 are provided in the. An outside air temperature sensor 70 is provided in the lower corner of the case 1 to detect the ambient temperature. Reference numeral 80 denotes a controller, which inputs information from each sensor and a command from a remote controller (not shown) and outputs a predetermined operation command to each part of the water heater.
【0011】前記Q側F点スイッチ14は、給湯用熱交換
缶体10が非燃焼の場合に、給湯用熱交換器13の温度が0
℃付近まで低下すると、スイッチオンし、これによって
電熱ヒータ15が給湯用熱交換器13を加熱する。一方、F
側F点スイッチ24は、風呂加熱用熱交換缶体20が非燃焼
の場合に風呂加熱用熱交換器23の温度が0℃付近まで低
下すると、スイッチオンし、これによって風呂循環ポン
プ51が駆動を開始して、浴槽水を風呂加熱用熱交換器23
に循環する。そして、さらに本発明では、給湯用熱交換
缶体10及び風呂加熱用熱交換缶体20の何れもが非燃焼の
場合においては、例えF側F点スイッチ24がオフの状態
であっても、Q側F点スイッチ14がオンした場合には、
風呂循環ポンプ51の運転を行うようにしている。The Q-side F point switch 14 keeps the temperature of the hot water supply heat exchanger 13 at 0 when the hot water supply heat exchange can body 10 is not combusted.
When the temperature drops to around 0 ° C., the switch is turned on, whereby the electric heater 15 heats the hot water supply heat exchanger 13. On the other hand, F
The side F point switch 24 is switched on when the temperature of the bath heating heat exchanger 23 drops to around 0 ° C. when the bath heating heat exchange can body 20 is non-combusting, and the bath circulation pump 51 is driven by this. Start the bath water to heat the bath heat exchanger 23
Circulates. Further, in the present invention, when neither the hot water supply heat exchange can body 10 nor the bath heating heat exchange can body 20 is non-combusting, even if the F side F point switch 24 is in the OFF state, When the Q side F point switch 14 is turned on,
The bath circulation pump 51 is operated.
【0012】図2〜図5を参照して凍結防止運転の具体
的な制御動作を説明する。先ず図2に従って給湯側の凍
結防止動作を説明すると、今、図示しない炎検出器等に
より、給湯用熱交換缶体10の燃焼バーナ12の非燃焼状態
が検出されている場合において(S1でイエス)、Q側
F点スイッチ14がオンした場合(S2でイエス)には、
コントローラ80は電熱ヒータ15をオンする(S5)。ま
た前記S2で、Q側F点スイッチ14がオフの場合であっ
ても、外気温センサ70が3℃以下を示す場合(S3でイ
エス)には、さらに外気温センサ70が−2℃以下か否か
によって後の条件が異なるものの(S4)、何れの場合
にも電熱ヒータ15をオンする(S5、S9)。電熱ヒー
タ15のオンによって給湯用熱交換器13が直接的に加熱さ
れ、給湯用熱交換器13の凍結が防止される。そして、前
記Q側F点スイッチ14がオンした場合と外気温センサ70
が−2℃以下の場合には、電熱ヒータ15を40分間スイッ
チオンした後(S6)、スイッチオフ(S7)し、10分
の待機をもって(S8)、再びS1 に戻る。前記S4で
ノーの場合には電熱ヒータ15はオンされるが(S9)、
20分を経過することで(S10)、スイッチオフし(S1
1)、30分の待機をもって(S12)、再びS1に戻る。A specific control operation of the antifreezing operation will be described with reference to FIGS. First, the freezing prevention operation on the hot water supply side will be described with reference to FIG. 2. Now, when the non-combustion state of the combustion burner 12 of the hot water supply heat exchange can body 10 is detected by a flame detector (not shown) or the like (Yes in S1). ), When the Q side F point switch 14 is turned on (Yes in S2),
The controller 80 turns on the electric heater 15 (S5). Even if the Q side F-point switch 14 is turned off in S2, if the outside air temperature sensor 70 indicates 3 ° C. or lower (Yes in S3), whether the outside air temperature sensor 70 is −2 ° C. or lower. Although the subsequent conditions differ depending on whether or not (S4), the electrothermal heater 15 is turned on in any case (S5, S9). When the electric heater 15 is turned on, the hot water supply heat exchanger 13 is directly heated, and the freezing of the hot water supply heat exchanger 13 is prevented. When the Q side F point switch 14 is turned on and when the outside air temperature sensor 70
If the temperature is below -2 ° C, the electric heater 15 is switched on for 40 minutes (S6), then switched off (S7), and after waiting for 10 minutes (S8), the process returns to S1 again. If S4 is NO, the electric heater 15 is turned on (S9),
After 20 minutes (S10), the switch is turned off (S1
1) After waiting for 30 minutes (S12), the process returns to S1 again.
【0013】次に風呂側の凍結防止運転制御を図3〜図
5に沿って説明すると、先ず図3において、今、給湯器
側及び風呂側の図示しない炎検出器等により、給湯器側
(Q側)及び風呂側(F側)の何れの燃焼バーナ12、22
も非燃焼状態であることが検出されている場合において
(S1でイエス)、Q側F点スイッチ14がオンした場合
(S2でイエス)には、F側のF点スイッチ24のオン、
オフの有無に関わらず、コントローラ80は風呂循環ポン
プ51をオンする(S6)。前記S1で、給湯器側(Q
側)及び風呂側(F側)の両方が非燃焼状態であると言
えない場合(S1でノー)でも、風呂側(F側)が非燃
焼の場合には(S3でイエス)、F側F点スイッチ24が
オンすることで(S4でイエス)、コントローラ80は風
呂循環ポンプ51をオンする。さらにS4でF側F点スイ
ッチ24がオフの場合(S4でノー)でも、外気温センサ
70が3℃以下の場合(S5でイエス)には、風呂循環ポ
ンプ51をオンする。循環ポンプ51のオンによって循環ポ
ンプ51が駆動し、浴槽60水が追い焚き循環路50を風呂加
熱用熱交換器23に循環して、該風呂加熱用熱交換器23や
循環路50、及び循環ポンプ51等での凍結を防止する。前
記循環ポンプ51がオンした後(S6)、追い焚き循環路
50の水流スイッチ53が30秒間連続してオンすれば(S7
でイエス)、これによって所定の凍結防止動作がなされ
たとして、循環ポンプ51がオフされる(S9)。S7で
水流スイッチ53が5分間経過しても30秒間連続してオン
しない場合には(S8でイエス)、浴槽60内に水がない
として、風呂循環ポンプ51をオフする(S10)。Next, the freezing prevention operation control on the bath side will be described with reference to FIGS. 3 to 5. First, in FIG. 3, the flame detector (not shown) on the water heater side and the bath side, etc. Either combustion burner 12, 22 on the Q side) or the bath side (F side)
If the Q side F-point switch 14 is turned on (YES in S2) when it is detected that the F-side F-point switch 24 is turned on (YES in S1), the F-side F point switch 24 is turned on,
The controller 80 turns on the bath circulation pump 51 regardless of whether it is turned off (S6). In S1, the water heater side (Q
Side) and the bath side (F side) cannot be said to be in a non-combustion state (No in S1), but the bath side (F side) is non-combustion (Yes in S3), F side F When the point switch 24 is turned on (Yes in S4), the controller 80 turns on the bath circulation pump 51. Even if the F side F point switch 24 is turned off in S4 (No in S4), the outside temperature sensor
If 70 is 3 ° C. or lower (YES in S5), the bath circulation pump 51 is turned on. When the circulation pump 51 is turned on, the circulation pump 51 is driven, and the water in the bathtub 60 is reheated and circulates through the circulation passage 50 to the bath heating heat exchanger 23, and the bath heating heat exchanger 23, the circulation passage 50, and the circulation. Prevent freezing in the pump 51 etc. After the circulation pump 51 is turned on (S6), a reheating circulation path
If the water flow switch 53 of 50 is turned on continuously for 30 seconds (S7
Yes), and the circulation pump 51 is turned off because the predetermined freeze prevention operation has been performed by this (S9). In S7, if the water flow switch 53 does not turn on continuously for 30 seconds even after 5 minutes have passed (YES in S8), it is determined that there is no water in the bathtub 60, and the bath circulation pump 51 is turned off (S10).
【0014】前記S9で風呂循環ポンプ51がオフした場
合には、図4に示すフローに進む。即ち、風呂循環ポン
プ51がオフした時点で、Q側F点スイッチ14がオンして
いる場合(S11でノー)かF側F点スイッチ24がオンし
ている場合(S12でノー)には、5分の待機時間をもっ
て(S16)、再び図3のS1に戻る。また、Q側F点ス
イッチ14がオフで(S11でイエス)且つF側F点スイッ
チ24もオフ(S12でイエス)の場合には、風呂温度セン
サ52が15℃以下か否か判定し(S13)、以下の場合(S
13でイエス)には、更に外気温センサ70の温度によっ
て、該外気温センサ70の温度が−2℃以下の場合には5
分間の待機時間を与える(S14でイエス、S15でイエ
ス、S16)、また外気温センサ70の温度が1℃以下の場
合に15分の待機時間を与え(S14でイエス、S15でノ
ー、S18)、また外気温センサ70の温度が1℃を越える
場合には50分間の待機時間を与える(S14でノー、S1
7)。前記S13で、風呂温度センサ52が15℃を越える場
合にも(S13でノー)、外気温センサ70の温度により、
外気温センサ70の温度が−2℃以下の場合には5分間の
待機時間を与え(S19でイエス、S20でイエス、S2
1)、また外気温センサ70の温度が1℃以下の場合には3
0分間の待機時間を与え(S19でイエス、S20でノー、
S22)、また外気温センサ70の温度が1℃を越える場合
には90分間の待機時間を与える(S19でノー、S23)。When the bath circulation pump 51 is turned off in S9, the process proceeds to the flow shown in FIG. That is, when the bath circulation pump 51 is turned off, if the Q side F point switch 14 is on (No in S11) or the F side F point switch 24 is on (No in S12), After waiting for 5 minutes (S16), the process returns to S1 in FIG. When the Q-side F-point switch 14 is off (Yes in S11) and the F-side F-point switch 24 is also off (Yes in S12), it is determined whether the bath temperature sensor 52 is 15 ° C or lower (S13). ), In the following case (S
If the temperature of the outside air temperature sensor 70 is -2 ° C. or lower, 5 is given according to the temperature of the outside air temperature sensor 70.
Give a waiting time of one minute (Yes in S14, Yes in S15, S16), and give a waiting time of 15 minutes when the temperature of the outside air temperature sensor 70 is 1 ° C or less (Yes in S14, No in S15, S18). If the temperature of the outside air temperature sensor 70 exceeds 1 ° C, a waiting time of 50 minutes is given (NO in S14, S1
7). Even if the bath temperature sensor 52 exceeds 15 ° C. in S13 (NO in S13), depending on the temperature of the outside air temperature sensor 70,
When the temperature of the outside air temperature sensor 70 is −2 ° C. or less, a waiting time of 5 minutes is given (Yes in S19, Yes in S20, S2
1) If the temperature of the outside air temperature sensor 70 is 1 ° C or less, 3
Give a waiting time of 0 minutes (Yes in S19, No in S20,
If the temperature of the outside air temperature sensor 70 exceeds 1 ° C., a waiting time of 90 minutes is given (NO in S19, S23).
【0015】前記S10で風呂循環ポンプ51がオフされた
場合、即ち風呂循環ポンプ51がオンされたにも関わらず
5分経過しても水流スイッチ53が30秒以上連続してオン
しない場合に、風呂循環ポンプ51がオフされた場合に
は、図5のフローに進む。そして、Q側F点スイッチ14
がオンしている場合(S31でノー)かF側F点スイッチ
24がオンしている場合(S32でノー)には、30分の待機
時間をもって(S35)、図3のS1に戻る。またQ側F
点スイッチ14がオフで(S31でイエス)且つF側F点ス
イッチ24もオフ(S32でイエス)の場合には、外気温セ
ンサ70の温度よって、該外気温センサ70の検出温度が−
2℃以下の場合には30分間の待機時間を与える(S33で
イエス、S34でイエス、S35)。外気温センサ70の検出
温度が1℃以下の場合には60分の待機時間とする(S33
でイエス、S34でノー、S36)。さらに、外気温センサ
70の検出温度が1℃を越える場合には、90分の待機時間
とする(S33でノー、S37)。When the bath circulation pump 51 is turned off in S10, that is, when the water circulation switch 53 is not turned on continuously for 30 seconds or more even after 5 minutes have passed even though the bath circulation pump 51 is turned on, When the bath circulation pump 51 is turned off, the process proceeds to the flow of FIG. And the Q side F point switch 14
Is on (No in S31) or F side F point switch
If 24 is turned on (NO in S32), the process returns to S1 of FIG. 3 with a waiting time of 30 minutes (S35). Q side F
When the point switch 14 is off (Yes in S31) and the F-side F point switch 24 is also off (Yes in S32), the temperature detected by the outside air temperature sensor 70 depends on the temperature of the outside air temperature sensor 70.
If the temperature is 2 ° C or less, a waiting time of 30 minutes is given (S33: Yes, S34: Yes, S35). When the temperature detected by the outside air temperature sensor 70 is 1 ° C. or less, the standby time is 60 minutes (S33).
Yes, S34, No, S36). In addition, the outside temperature sensor
When the detected temperature of 70 exceeds 1 ° C., the waiting time is 90 minutes (NO in S33, S37).
【0016】[0016]
【発明の効果】本発明は以上の構成、作用よりなり、請
求項1に記載の強制給排気型給湯器の凍結防止装置によ
れば、給湯用熱交換缶体と風呂加熱用熱交換缶体の両方
が燃焼を行っていない場合に給湯側凍結防止運転スイッ
チだけがオンした場合にも、前記風呂循環ポンプを運転
して凍結防止運転を行うよう構成したコントローラを設
けているので、風呂側の凍結防止運転が給湯側の電熱ヒ
ータによって悪影響をうけることなく、必要時には確実
に風呂側凍結防止運転がなされ、給湯側の凍結防止のみ
ならず風呂側の凍結防止をも確実に行うことができる。According to the freeze prevention apparatus for a forced air supply / exhaust type water heater according to the first aspect of the present invention, the present invention has the above-described structure and operation, and the heat exchange can body for hot water supply and the heat exchange can body for bath heating. A controller configured to operate the bath circulation pump to perform antifreeze operation even when only the hot water supply side antifreeze operation switch is turned on when both are not burning
Since the anti-freezing operation on the bath side is not adversely affected by the electric heater on the hot water supply side, the anti-freezing operation on the bath side is reliably performed when necessary. Can also be done reliably.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明装置の実施例を示す断面構成図である。FIG. 1 is a cross-sectional configuration diagram showing an embodiment of the device of the present invention.
【図2】給湯側の凍結防止制御例を示すフローチャート
である。FIG. 2 is a flowchart showing an example of freeze prevention control on the hot water supply side.
【図3】風呂側の凍結防止制御例を示すフローチャート
である。FIG. 3 is a flowchart showing an example of freeze prevention control on the bath side.
【図4】風呂側の凍結防止制御例を示すフローチャート
である。FIG. 4 is a flowchart showing an example of freeze prevention control on the bath side.
【図5】風呂側の凍結防止制御例を示すフローチャート
である。FIG. 5 is a flowchart showing an example of freeze prevention control on the bath side.
1 ケース 10 給湯用熱交換缶体 13 給湯用熱交換器 14 給湯側凍結防止運転スイッチ(Q側F点スイッチ) 15 電熱ヒータ 20 風呂加熱用熱交換缶体 23 風呂加熱用熱交換器 24 風呂側凍結防止運転スイッチ(F側F点スイッチ) 50 追い焚き循環路 51 風呂循環ポンプ 60 浴槽 70 外気温センサ 80 コントローラ S 空間 1 Case 10 Heat exchange can body for hot water supply 13 Heat exchanger for hot water supply 14 Hot water supply side freeze prevention operation switch (Q side F point switch) 15 Electric heater 20 Heat exchange can body for bath heating 23 Heat exchanger for bath heating 24 Bath side Antifreeze operation switch (F side F point switch) 50 Reheating circulation circuit 51 Bath circulation pump 60 Bathtub 70 Outside air temperature sensor 80 Controller S space
Claims (1)
用熱交換缶体とを並設配置して強制給排気により燃焼運
転を行うと共に、前記両熱交換缶体間の空間にそれぞれ
給湯用熱交換器の温度を検出してこれが0℃付近まで低
下するとスイッチオンする給湯側凍結防止運転スイッチ
と風呂加熱用熱交換器の温度を検出してこれが0℃付近
まで低下するとスイッチオンする風呂側凍結防止運転ス
イッチとを設け、給湯側は前記給湯側凍結防止運転スイ
ッチのオンによって給湯用熱交換器の一部に取り付けた
電熱ヒータによる加熱を開始し、風呂加熱側は前記風呂
側凍結防止運転スイッチのオンによって風呂循環ポンプ
による循環を開始するようにして凍結を防止するように
した強制給排気型給湯器の凍結防止装置であって、風呂
側凍結防止運転については、前記給湯用熱交換缶体と風
呂加熱用熱交換缶体の両方が燃焼を行っていない場合に
前記給湯側凍結防止運転スイッチだけがオンした場合に
も、前記風呂循環ポンプを運転して凍結防止運転を行う
よう構成したコントローラを設けていることを特徴とす
る強制給排気型給湯器の凍結防止装置。1. A hot water supply heat exchange can body and a bath heating heat exchange can body are arranged side by side in a case to perform combustion operation by forced air supply / exhaust, and in the spaces between the both heat exchange can bodies, respectively. Detects the temperature of the heat exchanger for hot water supply and switches it on when it decreases to around 0 ° C. Detects the temperature of the anti-freezing operation switch on the hot water supply side and the heat exchanger for bath heating and switches it on when it decreases to around 0 ° C. A bath side freeze prevention operation switch is provided, and the hot water supply side starts heating by an electric heater attached to a part of the hot water supply heat exchanger when the hot water supply side freeze prevention operation switch is turned on, and the bath heating side freezes on the bath side. This is a freezing prevention device for a forced air supply / exhaust type water heater that prevents freezing by starting circulation by the bath circulation pump when the prevention operation switch is turned on. In addition, even when both the hot water supply heat exchange can body and the bath heating heat exchange can body are not burning, even if only the hot water supply side freeze prevention operation switch is turned on, the bath circulation pump is operated. An anti-icing device for a forced air supply / exhaust water heater, characterized in that a controller configured to perform anti-freezing operation is provided .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5205906A JP2565102B2 (en) | 1993-07-27 | 1993-07-27 | Freezing prevention device for forced air supply / exhaust water heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5205906A JP2565102B2 (en) | 1993-07-27 | 1993-07-27 | Freezing prevention device for forced air supply / exhaust water heater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0743015A JPH0743015A (en) | 1995-02-10 |
JP2565102B2 true JP2565102B2 (en) | 1996-12-18 |
Family
ID=16514717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5205906A Expired - Fee Related JP2565102B2 (en) | 1993-07-27 | 1993-07-27 | Freezing prevention device for forced air supply / exhaust water heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2565102B2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2006003904A1 (en) | 2004-07-02 | 2008-04-17 | ヤマハ発動機株式会社 | V-belt type continuously variable transmission for small vehicle and saddle riding type vehicle |
JP2006300470A (en) * | 2005-04-25 | 2006-11-02 | Matsushita Electric Ind Co Ltd | Hot water storage type water heater |
JP5602883B2 (en) | 2010-02-08 | 2014-10-08 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | High directional boundary microphone |
JP2012255595A (en) * | 2011-06-09 | 2012-12-27 | Panasonic Corp | Hot-water storage type water heater |
JP6017824B2 (en) * | 2012-04-23 | 2016-11-02 | リンナイ株式会社 | Hot water storage water heater |
JP6115754B2 (en) * | 2013-01-21 | 2017-04-19 | 株式会社ノーリツ | Heat source machine and freeze prevention control method |
-
1993
- 1993-07-27 JP JP5205906A patent/JP2565102B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0743015A (en) | 1995-02-10 |
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