JPH0658598A - Freeze protecting device for warm water type air conditioner - Google Patents

Freeze protecting device for warm water type air conditioner

Info

Publication number
JPH0658598A
JPH0658598A JP4214886A JP21488692A JPH0658598A JP H0658598 A JPH0658598 A JP H0658598A JP 4214886 A JP4214886 A JP 4214886A JP 21488692 A JP21488692 A JP 21488692A JP H0658598 A JPH0658598 A JP H0658598A
Authority
JP
Japan
Prior art keywords
hot water
warm water
temperature sensor
water valve
microcomputer
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.)
Pending
Application number
JP4214886A
Other languages
Japanese (ja)
Inventor
Masayuki Mochida
正幸 持田
Original Assignee
Matsushita Seiko Co Ltd
松下精工株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Seiko Co Ltd, 松下精工株式会社 filed Critical Matsushita Seiko Co Ltd
Priority to JP4214886A priority Critical patent/JPH0658598A/en
Publication of JPH0658598A publication Critical patent/JPH0658598A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To provide a freeze protecting device for a warm water type air conditioner which can switch a warm water valve through a warm water valve driver by providing an indoor temperature sensor and a warm water coil temperature sensor in an indoor unit and always monitoring temperatures from the sensors by a microcomputer. CONSTITUTION:A microcomputer 4 provided in an indoor unit 1 fetches temperature data as analog signals from a room temperature sensor 2, a warm water coil temperature sensor 3, controls a warm water valve 9 based on the data through a warm water valve driver 6, thereby automatically protect against freeze without interrupting a warm water circuit at the time of stopping in winter.

Description

【発明の詳細な説明】Detailed Description of the Invention
【0001】[0001]
【産業上の利用分野】本発明は、温水式空気調和機の凍
結保護装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a freeze protection device for a hot water type air conditioner.
【0002】[0002]
【従来の技術】近年、住宅設備には浴室および台所への
給湯及び空気調和が不可欠となってきているが、両者を
システム化するための商品として、暖房はボイラーを熱
源として温水を用いて暖房を行い、冷房は電気式の冷房
用室外機を熱源として冷媒を用いて冷房する温水式空気
調和機が普及して来た。
2. Description of the Related Art In recent years, hot water supply to a bathroom and kitchen and air conditioning have become indispensable for housing equipment. As a product for systemizing both, heating is performed by using hot water from a boiler as a heat source. For the cooling, a hot water type air conditioner has been popular, which uses an electric outdoor unit for cooling as a heat source and uses a refrigerant as a heat source.
【0003】従来、この種の温水式空気調和機の凍結保
護装置を図2を参照しながら説明する。図に示すよう
に、室内機101は冷媒用熱交換器104と温水用熱交
換器103と温水弁102とファンモータ105および
運転制御装置106などによって構成されている。さら
にボイラー107はファーネス108、ポンプ109な
どで構成される温水回路115および運転制御装置11
0と、外気温センサー111などによって構成されてい
て、前記温水回路115は温水配管113によって室内
機101の温水用熱交換器103と接続されている。冷
房用室外機112は冷媒配管114によって室内機10
1の冷媒用熱交換器104と接続されている。そこで前
記室内機101の運転制御装置106は図3に示すよう
な構成となっている。すなわち、暖房運転の場合にはリ
モコン122からの信号を受けたマイクロコンピュータ
117は室温センサー116によって室温を検知し必要
に応じて熱源制御ドライブ回路121からボイラー10
7へ運転指令を送り、前記ボイラー107を運転すると
ともに、温水弁ドライブ回路119に出力して温水弁1
02を開け、ボイラー107からの温水を温水用熱交換
器103に流通させ、ファンモータドライブ回路118
に出力してファンモータ105を運転して、室内空気を
前記温水用熱交換器103で暖める。
A conventional freeze protection device for a hot water type air conditioner of this type will be described with reference to FIG. As shown in the figure, the indoor unit 101 includes a heat exchanger 104 for refrigerant, a heat exchanger 103 for hot water, a hot water valve 102, a fan motor 105, an operation control device 106, and the like. Further, the boiler 107 includes a furnace 108, a hot water circuit 115 including a pump 109, and an operation control device 11.
0, an outside air temperature sensor 111, etc., and the hot water circuit 115 is connected to the hot water heat exchanger 103 of the indoor unit 101 by a hot water pipe 113. The outdoor unit 112 for cooling is connected to the indoor unit 10 by a refrigerant pipe 114.
No. 1 refrigerant heat exchanger 104 is connected. Therefore, the operation control device 106 of the indoor unit 101 is configured as shown in FIG. That is, in the heating operation, the microcomputer 117 receiving the signal from the remote controller 122 detects the room temperature by the room temperature sensor 116, and the heat source control drive circuit 121 causes the boiler 10 to operate as needed.
7 to operate the boiler 107 and output it to the hot water valve drive circuit 119 to output the hot water valve 1
02 is opened, hot water from the boiler 107 is circulated to the hot water heat exchanger 103, and the fan motor drive circuit 118
Is output to drive the fan motor 105 to warm the room air with the hot water heat exchanger 103.
【0004】次に冷房の時には同様にしてマイコン11
7は室外機112へ運転指令を送り、冷房用室外機11
2を運転し冷媒ガスを冷媒用熱交換器104に流通させ
るとともにファンモータ105を運転して室内空気を前
記冷媒用熱交換器104で冷却するのである。
Next, during cooling, the microcomputer 11 is similarly operated.
7 sends an operation command to the outdoor unit 112, and the outdoor unit 11 for cooling
2 is operated to allow the refrigerant gas to flow through the refrigerant heat exchanger 104, and the fan motor 105 is operated to cool the room air by the refrigerant heat exchanger 104.
【0005】上記構成において、これらのシステムには
通常ボイラー107と冷房用の室外機112は室外に設
置されることが多く、ボイラー107と室内機101を
連絡している温水配管は0゜C以下の外気にさらされる
時もあり、厳冬期の凍結防止装置としては以下のように
なっていた。
In the above structure, the boiler 107 and the outdoor unit 112 for cooling are usually installed outdoors in these systems, and the hot water pipe connecting the boiler 107 and the indoor unit 101 is 0 ° C or less. There were times when it was exposed to the outside air, and it was as follows as a freeze prevention device in the severe winter season.
【0006】すなわちボイラー107と室内機101と
の間の温水配管113は0゜C以下の外気にさらされる
こととなり、ボイラー107が停止していればやがては
前記温水配管113中の水は氷結して、前記温水配管1
13を破壊してしまうので、ボイラー107の運転制御
装置110は外気温センサー111によって外気温を監
視していて、外気温が0゜C近くであって、ボイラー1
07の運転が必要ないときは温水回路115のポンプ1
09のみ運転して、前記温水配管113の水を流通させ
て凍結を防止するようになっていた。
That is, the hot water pipe 113 between the boiler 107 and the indoor unit 101 is exposed to the outside air of 0 ° C. or less, and if the boiler 107 is stopped, the water in the hot water pipe 113 will be frozen. The hot water pipe 1
The operation control device 110 of the boiler 107 monitors the outside air temperature by the outside air temperature sensor 111, and the outside air temperature is close to 0 ° C.
Pump 1 of the hot water circuit 115 when the operation of 07 is not necessary
Only the 09 is operated, and the water in the hot water pipe 113 is circulated to prevent freezing.
【0007】しかし当然この場合には、温水弁102を
開けておく必要がある。したがってたとえば就寝前に室
内機101が停止している場合で、早朝外気温が0゜C
を下まわることが予想される場合には、ユーザーは温水
弁手動スイッチ120を操作して温水弁102を開けて
おくようにしていたのである。
However, in this case, of course, it is necessary to open the hot water valve 102. Therefore, for example, when the indoor unit 101 is stopped before going to bed, the outside air temperature is 0 ° C early in the morning.
If it is expected that the temperature will fall below the range, the user operated the hot water valve manual switch 120 to open the hot water valve 102.
【0008】[0008]
【発明が解決しようとする課題】このような従来の温水
式空気調和機の凍結保護装置では、温水弁手動スイッチ
120を手動で操作するようになっているため操作がわ
ずらわしく、かつ操作を忘れたときに、外気温が0゜C
を下まわってしまうと、温水配管113にたまっている
水が永結して凍結破壊してしまうという問題があった。
In such a conventional freeze protection device for a hot water type air conditioner, since the hot water valve manual switch 120 is manually operated, the operation is troublesome and the operation is forgotten. Sometimes the outside temperature is 0 ° C
If it goes down, there is a problem that the water accumulated in the hot water pipe 113 will be long-lived and frozen and destroyed.
【0009】本発明は上記従来の課題を解決するもの
で、室温センサーと温水コイル温度センサーの検知する
温度が共に低い場合にはマイクロコンピュータにより温
水弁を自動的に開閉することのできる温水式空気調和機
の凍結保護装置を提供することを目的とする。
The present invention solves the above-mentioned conventional problems. When the temperature detected by the room temperature sensor and the temperature of the hot water coil temperature sensor are both low, the hot water valve can be automatically opened and closed by a microcomputer. An object is to provide a freeze protection device for a harmony machine.
【0010】[0010]
【課題を解決するための手段】本発明の温水式空気調和
機の凍結保護装置は上記目的を達成するために、室内機
に備えられた室内の温度を検知する室温センサーと、温
水用熱交換器の配管温度を検知する温水コイル温度セン
サーと、この温水コイル温度センサーと、前記室温セン
サーからのアナログ信号を取り込んで温度データを認識
するマイクロコンピュータと、前記マイクロコンピュー
タで取り込んだ温度データをもとに判断して制御される
温水弁ドライブ回路と、この温水弁ドライブ回路を介し
て開閉する温水弁を備えた構成としたものである。
In order to achieve the above-mentioned object, a freezing protection device for a hot water type air conditioner according to the present invention has a room temperature sensor for detecting an indoor temperature provided in an indoor unit and a heat exchange for hot water. Hot water coil temperature sensor for detecting the pipe temperature of the vessel, this hot water coil temperature sensor, a microcomputer for recognizing temperature data by taking in an analog signal from the room temperature sensor, and a temperature data taken in by the microcomputer. In this configuration, a hot water valve drive circuit that is controlled based on the above judgment and a hot water valve that opens and closes via this hot water valve drive circuit are provided.
【0011】[0011]
【作用】本発明は上記した構成により、室温センサーと
温水コイル温度センサーの検知する温度をマイクロコン
ピュータで常時監視しておき、ある温度以下になるとマ
イクロコンピュータより温水弁ドライブ回路を制御し、
この制御によって温水弁を開として、ボイラー側からの
温水を循環させることによって凍結を防止することがで
きる。
According to the present invention, the temperature detected by the room temperature sensor and the hot water coil temperature sensor is constantly monitored by the microcomputer, and when the temperature becomes lower than a certain temperature, the microcomputer controls the hot water valve drive circuit.
Freezing can be prevented by opening the hot water valve by this control and circulating hot water from the boiler side.
【0012】[0012]
【実施例】以下、本発明の一実施例について図1を参照
しながら説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
【0013】すなわち、室内機1に備えられたマイクロ
コンピュータ4は、室温センサー2と温水コイル温度セ
ンサー3と接続されており、常に、室内の温度、あるい
は、温水用熱交換器103の温度をアナログ信号として
取り込んでいる。また、前記マイクロコンピュータ4は
リモコン10からの出力信号によって運転を判断し、室
外機11へ運転信号を出力するとともに、温水弁ドライ
ブ回路6を介して温水弁9を開閉し、さらには、ファン
モータドライブ回路5を介してファンモータ8を制御
し、又熱源制御ドライブ回路7を介してボイラー12に
信号を送信し制御するのである。
That is, the microcomputer 4 provided in the indoor unit 1 is connected to the room temperature sensor 2 and the hot water coil temperature sensor 3 to constantly measure the indoor temperature or the temperature of the hot water heat exchanger 103 as an analog signal. It is captured as a signal. Further, the microcomputer 4 judges the operation by the output signal from the remote controller 10, outputs the operation signal to the outdoor unit 11, opens and closes the hot water valve 9 through the hot water valve drive circuit 6, and further, the fan motor. The fan motor 8 is controlled via the drive circuit 5, and a signal is transmitted to the boiler 12 via the heat source control drive circuit 7 for control.
【0014】上記構成において、リモコン10より暖房
信号が出力されたときには、マイクロコンピュータ4は
温水弁9を開け、ボイラー12を運転し、ファンモータ
8を運転して暖房をおこない、リモコン10より冷房信
号が出力されたときには、マイクロコンピュータ4はフ
ァンモータ8を運転するとともに、室外機11に運転指
令を送信し冷房運転を行う。また、リモコン10より停
止信号が出力された場合には、温水弁ドライブ回路6に
指令して温水弁9を閉じ、同様に熱源制御ドライブ回路
7およびファンモータドライブ回路5に指令して、ボイ
ラー12、ファンモータ8も停止させるが、このような
状態の時も前記室温センサー2および温水コイル温度セ
ンサー3はマイクロコンピュータ4で常時監視が行わ
れ、温度データによって温水弁ドライブ回路6を介して
温水弁9を開閉させ凍結を防止することができる。
In the above configuration, when the heating signal is output from the remote controller 10, the microcomputer 4 opens the hot water valve 9, operates the boiler 12, operates the fan motor 8 to perform heating, and outputs the cooling signal from the remote controller 10. Is output, the microcomputer 4 operates the fan motor 8 and also transmits an operation command to the outdoor unit 11 to perform the cooling operation. When a stop signal is output from the remote controller 10, the hot water valve drive circuit 6 is instructed to close the hot water valve 9, and similarly, the heat source control drive circuit 7 and the fan motor drive circuit 5 are instructed to operate the boiler 12 Although the fan motor 8 is also stopped, the room temperature sensor 2 and the hot water coil temperature sensor 3 are constantly monitored by the microcomputer 4 even in such a state, and the hot water valve is driven via the hot water valve drive circuit 6 according to the temperature data. It is possible to open and close 9 to prevent freezing.
【0015】このように本発明の実施例の温水式空気調
和機の凍結保護装置によれば、停止モード中に室温セン
サー2および温水コイル温度センサー3が検知した温度
が両センサーとも10゜C以下の場合、停止モードであ
っても、温水弁ドライブ回路6を介して温水弁9を開
け、温水を循環させることによって凍結を防止し、前記
温水弁9を開けた後に、温水コイル温度センサー3の検
知した温度が30゜C以上になれば温水配管113中の
水も凍結しなくなるため温水弁ドライブ回路6を介して
温水弁9を閉じるのである。
As described above, according to the freeze protector for the hot water type air conditioner of the embodiment of the present invention, the temperature detected by the room temperature sensor 2 and the hot water coil temperature sensor 3 during the stop mode is 10 ° C or less for both sensors. In the case of, even in the stop mode, the hot water valve 9 is opened through the hot water valve drive circuit 6 to prevent freezing by circulating hot water, and after the hot water valve 9 is opened, the hot water coil temperature sensor 3 When the detected temperature becomes 30 ° C. or higher, the water in the hot water pipe 113 does not freeze, so the hot water valve 9 is closed via the hot water valve drive circuit 6.
【0016】[0016]
【発明の効果】以上の実施例から明らかなように、本発
明によれば、たとえ、リモコンによる運転停止のときに
も、室温センサーと、温水コイル温度センサーの温度を
常時マイクロコンピュータによって監視し、厳冬期に手
動操作によって温水弁を開けていたのを、ボイラー側の
凍結防止機構によって凍結を未然に防止するため、ボイ
ラー内のポンプを運転して温水を循環させるシステムが
働く前に、温水弁を事前にマイクロコンピュータの判断
によって温水弁を開けるようにしたため、温水回路が遮
断されることがなく、凍結防止が自動的におこなわれ、
従来のように温水弁の手動操作による忘れを防止し、凍
結による配管亀裂を未然に防止することができる温水式
空気調和機の凍結保護装置を提供できる。
As is apparent from the above embodiments, according to the present invention, the temperature of the room temperature sensor and the temperature of the hot water coil temperature sensor are constantly monitored by the microcomputer even when the operation is stopped by the remote controller. The hot water valve was opened manually during the severe winter, but the anti-freezing mechanism on the boiler side prevents freezing.Therefore, before the system that operates the pump in the boiler to circulate hot water works, the hot water valve Since the hot water valve was opened in advance based on the judgment of the microcomputer, the hot water circuit is not interrupted and freezing is automatically prevented.
It is possible to provide a freeze protection device for a hot water type air conditioner that can prevent forgetting due to manual operation of a hot water valve and can prevent pipe cracks due to freezing as in the past.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明の一実施例の温水式空気調和機の凍結保
護装置の制御図
FIG. 1 is a control diagram of a freeze protection device for a hot water air conditioner according to an embodiment of the present invention.
【図2】従来の技術の説明に付する温水式空気調和機の
構成図
FIG. 2 is a configuration diagram of a hot water type air conditioner for explaining a conventional technique.
【図3】従来の温水式空気調和機の凍結保護装置の制御
FIG. 3 is a control diagram of a conventional freeze protection device for a hot water air conditioner.
【符号の説明】[Explanation of symbols]
1 室内機 2 室温センサー 3 温水コイル温度センサー 4 マイクロコンピュータ 6 温水弁ドライブ回路 9 温水弁 1 Indoor unit 2 Room temperature sensor 3 Hot water coil temperature sensor 4 Microcomputer 6 Hot water valve drive circuit 9 Hot water valve

Claims (1)

    【特許請求の範囲】[Claims]
  1. 【請求項1】室内機に備えられた室内の温度を検知する
    室温センサーと、温水用熱交換器の配管温度を検知する
    温水コイル温度センサーと、この温水コイル温度センサ
    ーと、前記室温センサーからのアナログ信号を取り込ん
    で温度データを認識するマイクロコンピュータと、前記
    マイクロコンピュータで取り込んだ温度データをもとに
    判断して制御される温水弁ドライブ回路と、この温水弁
    ドライブ回路を介して開閉する温水弁を備えてなる温水
    式空気調和機の凍結保護装置。
    1. A room temperature sensor for detecting an indoor temperature provided in an indoor unit, a hot water coil temperature sensor for detecting a pipe temperature of a hot water heat exchanger, the hot water coil temperature sensor, and A microcomputer that takes in an analog signal to recognize temperature data, a hot water valve drive circuit that is controlled based on the temperature data taken in by the microcomputer, and a hot water valve that opens and closes via this hot water valve drive circuit Freezing protection device for hot water type air conditioners.
JP4214886A 1992-08-12 1992-08-12 Freeze protecting device for warm water type air conditioner Pending JPH0658598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4214886A JPH0658598A (en) 1992-08-12 1992-08-12 Freeze protecting device for warm water type air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4214886A JPH0658598A (en) 1992-08-12 1992-08-12 Freeze protecting device for warm water type air conditioner

Publications (1)

Publication Number Publication Date
JPH0658598A true JPH0658598A (en) 1994-03-01

Family

ID=16663196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4214886A Pending JPH0658598A (en) 1992-08-12 1992-08-12 Freeze protecting device for warm water type air conditioner

Country Status (1)

Country Link
JP (1) JPH0658598A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014025639A1 (en) * 2012-08-06 2014-02-13 Schneider Electric Buildings, Llc Advanced valve actuation system with integral freeze protection
KR101520236B1 (en) * 2014-12-01 2015-05-22 주식회사 케이프로텍 air conditioner with freeze protection system and freeze protection method for the air conditioner
US9534795B2 (en) 2012-10-05 2017-01-03 Schneider Electric Buildings, Llc Advanced valve actuator with remote location flow reset
US9658628B2 (en) 2013-03-15 2017-05-23 Schneider Electric Buildings, Llc Advanced valve actuator with true flow feedback
US10007239B2 (en) 2013-03-15 2018-06-26 Schneider Electric Buildings Llc Advanced valve actuator with integral energy metering
US10295080B2 (en) 2012-12-11 2019-05-21 Schneider Electric Buildings, Llc Fast attachment open end direct mount damper and valve actuator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014025639A1 (en) * 2012-08-06 2014-02-13 Schneider Electric Buildings, Llc Advanced valve actuation system with integral freeze protection
US8833384B2 (en) 2012-08-06 2014-09-16 Schneider Electric Buildings, Llc Advanced valve actuation system with integral freeze protection
US9534795B2 (en) 2012-10-05 2017-01-03 Schneider Electric Buildings, Llc Advanced valve actuator with remote location flow reset
US10295080B2 (en) 2012-12-11 2019-05-21 Schneider Electric Buildings, Llc Fast attachment open end direct mount damper and valve actuator
US9658628B2 (en) 2013-03-15 2017-05-23 Schneider Electric Buildings, Llc Advanced valve actuator with true flow feedback
US10007239B2 (en) 2013-03-15 2018-06-26 Schneider Electric Buildings Llc Advanced valve actuator with integral energy metering
KR101520236B1 (en) * 2014-12-01 2015-05-22 주식회사 케이프로텍 air conditioner with freeze protection system and freeze protection method for the air conditioner

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