JPH10253079A - Temperature controller for composite warm water heating system - Google Patents

Temperature controller for composite warm water heating system

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Publication number
JPH10253079A
JPH10253079A JP6152597A JP6152597A JPH10253079A JP H10253079 A JPH10253079 A JP H10253079A JP 6152597 A JP6152597 A JP 6152597A JP 6152597 A JP6152597 A JP 6152597A JP H10253079 A JPH10253079 A JP H10253079A
Authority
JP
Japan
Prior art keywords
temperature
heating
hot water
room
room temperature
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
Application number
JP6152597A
Other languages
Japanese (ja)
Other versions
JP3703596B2 (en
Inventor
Yoshimi Tsujimoto
吉視 辻本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rinnai Corp
Original Assignee
Rinnai Corp
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 Rinnai Corp filed Critical Rinnai Corp
Priority to JP06152597A priority Critical patent/JP3703596B2/en
Publication of JPH10253079A publication Critical patent/JPH10253079A/en
Application granted granted Critical
Publication of JP3703596B2 publication Critical patent/JP3703596B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent abnormal high temperature of a floor heating panel upon starting an operation in a composite warm water heating system and hence improve comfortability. SOLUTION: Upon starting a composite heating operation with an indoor machine 2 and a floor heating panel 3 the operation is usually started at an 8 speed of a maximum heating capability, and warm water heated to high temperature (75 deg.C) in response to the 8 speed in a heating heat exchanger 12 is supplied to the indoor machine 2 and the floor heating panel 3 to quickly raise indoor temperature. When fresh air temperature detected by a fresh air temperature thermistor 404 upon starting of the operation exceeds 15 deg.C, and set temperature of a remote controller 4 exceeds 27 deg.C, the operation is started at a 6 speed, a smaller heating capability than the 8 speed, and there is supplied warm weater heated to a high temperature (67 deg.C)) in response to the 6 speed slightly lower than the 8 speed. Temperature of the warm water supplied to the floor heating panel 3 is lowered owing to heat dissipation so that it can be suppressed to a predetermined surface temperature (36 deg.C) without reaching abnormal high temperature.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、一つの加熱源によ
って加熱された温水を床暖房パネルと室内暖房機にそれ
ぞれ循環させるための温水循環回路を形成して、室内の
暖房を行う複合温水暖房システムの温度制御装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined hot water heating system for heating a room by forming a hot water circulation circuit for circulating hot water heated by one heating source to a floor heating panel and an indoor heater. The present invention relates to a temperature control device for a system.

【0002】[0002]

【従来の技術】室内暖房機および床暖房パネルによって
室内の暖房を同時に行う複合温水暖房システムでは、床
暖房パネルからは内部を循環する温水からの放熱により
暖房を行い、室内暖房機では、内部の暖房用熱交換器に
備えられた対流ファンによって、室内空気を暖房用熱交
換器内に通過させて温水の熱によって加熱して、温風と
して室内へ向かって吹き出すことで暖房が行われる。こ
の場合、システムの制御を簡略化するために、室内暖房
機による暖房能力を基準にした温水の温度制御が行わ
れ、バーナを備えた加熱用熱交換器によって加熱された
同一温度の温水が、床暖房パネルと室内暖房機へ共に供
給される。
2. Description of the Related Art In a combined hot water heating system in which a room is heated by an indoor heater and a floor heating panel at the same time, the floor heating panel performs heating by radiating heat from hot water circulating in the interior. Heating is performed by passing room air through the heating heat exchanger and heating it with the heat of hot water, and blowing it out into the room as warm air by a convection fan provided in the heating heat exchanger. In this case, in order to simplify the control of the system, the temperature control of the hot water based on the heating capacity of the indoor heater is performed, and the hot water of the same temperature heated by the heating heat exchanger including the burner is used. It is supplied to both the floor heating panel and the indoor heater.

【0003】一方、室内温度制御としては、暖房運転の
開始初期には、できるだけ大きな暖房能力を確保して室
内温度を速やかに上昇させるために、最大暖房能力で運
転が開始され、その後、室温を検知する室温サーミスタ
の検知室温がリモコン等で設定される設定温度に達する
までは、運転開始時の最大暖房能力が継続され、検知室
温が設定温度に達すると、暖房能力が1段下げられて、
その後は、検知室温が設定温度に達する毎に、順次、暖
房能力が1段づつ下げられ、逆に、検知室温が設定温度
より低くなると暖房能力が1段上げられるように、暖房
能力をその前の暖房能力との増減によって逐次変更する
ように、能力制御を行うようにしたものがある。この場
合、最大暖房能力時には、室内暖房機および床暖房パネ
ルへ供給される温水の温度は、冷寒時に十分な暖房能力
が確保できるようにするために、例えば70℃以上に設
定されている。
On the other hand, in the room temperature control, in the early stage of the heating operation, the operation is started at the maximum heating capacity in order to secure the heating capacity as large as possible and quickly raise the room temperature, and thereafter, the room temperature is reduced. Until the detected room temperature of the detected room temperature thermistor reaches the set temperature set by the remote controller or the like, the maximum heating capacity at the start of operation is continued, and when the detected room temperature reaches the set temperature, the heating capacity is reduced by one step.
Thereafter, each time the detected room temperature reaches the set temperature, the heating capacity is sequentially reduced by one step. Conversely, when the detected room temperature is lower than the set temperature, the heating capacity is increased by one step so that the heating capacity is increased by one step. There is an apparatus in which capacity control is performed so as to be sequentially changed in accordance with increase and decrease with respect to the heating capacity. In this case, at the time of the maximum heating capacity, the temperature of the hot water supplied to the indoor heating unit and the floor heating panel is set to, for example, 70 ° C. or more in order to ensure a sufficient heating capacity during cold and cold.

【0004】[0004]

【発明が解決しようとする課題】上記の構成からなる複
合温水暖房システムにおいて、例えば、使用者が速やか
な室温上昇を望んで、リモコンによって設定する設定温
度を、通常より著しく高く設定した場合(例えば、設定
温度27℃以上)や、外気温度が比較的高く暖房負荷が
小さい場合(例えば、外気温度15℃以上)などには、
複合暖房運転が最大暖房能力で開始されて、室内暖房機
および床暖房パネルへ供給される温水の湯温が高くなる
ように制御されると、高温の温水が床暖房パネルへ供給
されることになり、例えば、暖房負荷が小さい場合に
は、床暖房パネルからの放熱量が小さいために、床暖房
パネルの表面温度が十分に低下せず体温以上の温度(例
えば40℃)になるため、体感的に不快感を感ずる。ま
た、設定温度が著しく高いと、室内温度が設定温度に容
易に達しないため、高温の温水がいつまでも床暖房パネ
ルへ連続して供給されることになり、その結果、比較的
暖房負荷が大きい場合であっても、床暖房パネルの表面
温度が異常に上昇し、やはり不快感を与えてしまうとい
う問題がある。
In the combined hot water heating system having the above-described structure, for example, when the user desires a rapid rise in room temperature, the set temperature set by the remote controller is set to be much higher than usual (for example, , The set temperature is 27 ° C. or higher), or when the outside air temperature is relatively high and the heating load is small (for example, the outside air temperature is 15 ° C. or higher).
When the combined heating operation is started at the maximum heating capacity and the temperature of the hot water supplied to the indoor heater and the floor heating panel is controlled to increase, the high-temperature hot water is supplied to the floor heating panel. For example, when the heating load is small, since the amount of heat radiation from the floor heating panel is small, the surface temperature of the floor heating panel does not sufficiently decrease and becomes a temperature equal to or higher than the body temperature (for example, 40 ° C.). Feels discomfort. Also, if the set temperature is extremely high, the room temperature does not easily reach the set temperature, so that high-temperature hot water is continuously supplied to the floor heating panel forever, and as a result, when the heating load is relatively large. Even so, there is a problem that the surface temperature of the floor heating panel abnormally rises, which also causes discomfort.

【0005】本発明は、一つの加熱源によって加熱され
た同一温度の温水を室内暖房機と床暖房パネルに供給す
る温水循環回路を設けた複合温水暖房システムにおい
て、複合運転開始時の床暖房パネル温度の異常上昇を防
止し、快適性の向上を図ることを目的とする。
SUMMARY OF THE INVENTION The present invention relates to a combined hot water heating system provided with a hot water circulation circuit for supplying hot water of the same temperature heated by one heating source to an indoor heater and a floor heating panel. An object is to prevent an abnormal rise in temperature and improve comfort.

【0006】[0006]

【課題を解決するための手段】本発明は、請求項1で
は、放熱用配管の内部を通過する温水を熱源とし、前記
放熱用配管からの放熱によって室内を暖房する床暖房パ
ネルと、室内空気を循環させる対流ファンを備えた暖房
用熱交換器に温水を通過させて、前記対流ファンの作動
により室内空気を前記暖房用熱交換器によって加熱して
室内を暖房する室内暖房機と、加熱手段の加熱により内
部を通過する水を加熱する加熱用熱交換器とを具備し、
前記床暖房パネルおよび前記室内暖房機を前記加熱用熱
交換器に対して並列に設けて、前記加熱用熱交換器によ
って加熱された温水をポンプによって前記床暖房パネル
および前記室内暖房機に循環させる温水循環回路を形成
した複合温水暖房システムにおいて、室内の目標室温を
設定するための室温設定器と、室内の温度を検知する室
温センサと、外気温度を検知する外気温度センサと、前
記加熱用熱交換器で加熱された温水の温度を検知する加
熱温度センサと、前記加熱用熱交換器で加熱された温水
を前記室内暖房機および前記床暖房パネルに循環させて
室内の暖房を行う複合暖房運転時の暖房能力を、前記室
温設定器による設定温度と前記室温センサによる検知室
温との温度差に応じて決定する手段であって、前記複合
暖房運転開始時の前記暖房能力を、前記外気温度センサ
の検知する外気温度が所定外気温度以下または前記室温
設定手段の設定温度が所定設定温度以下の場合には、最
大暖房能力に決定し、前記外気温度センサの検知する前
記外気温度が前記所定外気温度を越え且つ前記室温設定
手段の前記設定温度が前記所定設定温度を越えている場
合には、前記最大暖房能力より小さく制限された制限暖
房能力に決定する暖房能力決定手段と、該暖房能力決定
手段により決定された前記暖房能力に応じて前記加熱用
熱交換器によって加熱される温水の目標湯温を決定する
目標湯温決定手段と、該目標湯温決定手段により決定さ
れた前記目標湯温と前記加熱温度センサの検知湯温とに
基づいて前記加熱手段の加熱量を制御する加熱制御手段
とを具備することを技術的手段とする。
According to a first aspect of the present invention, there is provided a floor heating panel for heating a room by radiating heat from the heat radiating pipe, using hot water passing through the inside of the heat radiating pipe as a heat source. An indoor heater for heating the room by passing warm water through a heating heat exchanger having a convection fan that circulates the air, and heating the room air by the heating heat exchanger by operating the convection fan; A heating heat exchanger that heats water passing therethrough by heating the
The floor heating panel and the room heater are provided in parallel with the heating heat exchanger, and hot water heated by the heating heat exchanger is circulated to the floor heating panel and the room heater by a pump. In a combined hot water heating system that forms a hot water circulation circuit, a room temperature setter for setting a target indoor room temperature, a room temperature sensor for detecting an indoor temperature, an outside air temperature sensor for detecting an outside air temperature, and the heating heat A heating temperature sensor that detects the temperature of the hot water heated by the exchanger; and a combined heating operation that circulates the hot water heated by the heating heat exchanger to the indoor heater and the floor heating panel to heat the room. The heating capacity at the time, means for determining according to the temperature difference between the set temperature by the room temperature setter and the room temperature detected by the room temperature sensor, at the start of the combined heating operation When the outside air temperature detected by the outside air temperature sensor is equal to or less than a predetermined outside air temperature or the set temperature of the room temperature setting unit is equal to or less than a predetermined set temperature, the heating capacity is determined to be the maximum heating capacity, and the outside air temperature sensor detects the heating capacity. When the outside air temperature exceeds the predetermined outside air temperature and the set temperature of the room temperature setting means exceeds the predetermined set temperature, the heating capacity is determined to be the limited heating capacity limited to less than the maximum heating capacity. Determining means, target hot water determining means for determining a target hot water temperature of the hot water heated by the heating heat exchanger according to the heating capacity determined by the heating capacity determining means, and the target hot water determining means And a heating control means for controlling a heating amount of the heating means based on the target hot water temperature determined by the above and a hot water temperature detected by the heating temperature sensor. .

【0007】以上の構成により、本発明の請求項1で
は、室内暖房機と床暖房パネルとによって暖房を行う複
合暖房運転が開始されるとき、外気温度センサにより検
知される外気温度が所定外気温度を越えていて、且つ、
室温設定器によって設定される設定温度が所定設定温度
を越えている場合には、最大暖房能力より小さく制限さ
れた制限暖房能力が暖房能力として決定される。この結
果、加熱用熱交換器で加熱される温水の目標湯温は、最
大暖房能力に対応した高温の湯温ではなく、制限暖房能
力に応じた制限された低めの目標湯温となり、室内暖房
機および床暖房パネルへは、制限された目標湯温に加熱
された温水が供給される。従って、外気温度が高く、暖
房負荷が小さい場合に、設定温度が高くなっていても、
室内暖房機および床暖房パネルへ高温の温水が供給され
ることがなく、温度が制限された温水が供給されるた
め、床暖房パネルの表面温度が異常に上昇して、使用者
に不快感を与えることがない。また、暖房負荷が小さい
場合に、過剰な暖房能力で運転を開始することがないた
め、エネルギー消費を抑制できる。
According to the first aspect of the present invention, when the combined heating operation for heating by the indoor heater and the floor heating panel is started, the outside air temperature detected by the outside air temperature sensor is equal to the predetermined outside air temperature. Is over and
When the set temperature set by the room temperature setting device exceeds the predetermined set temperature, the limited heating capacity limited to be smaller than the maximum heating capacity is determined as the heating capacity. As a result, the target hot water temperature of the hot water heated by the heating heat exchanger is not a high-temperature hot water temperature corresponding to the maximum heating capacity, but a lower target water temperature limited according to the limited heating capacity. Hot water heated to the limited target hot water temperature is supplied to the machine and the floor heating panel. Therefore, when the outside air temperature is high and the heating load is small, even if the set temperature is high,
High-temperature hot water is not supplied to the indoor heater and the floor heating panel, and hot water with a limited temperature is supplied, so that the surface temperature of the floor heating panel rises abnormally, causing discomfort to the user. I will not give. Further, when the heating load is small, the operation is not started with an excessive heating capacity, so that energy consumption can be suppressed.

【0008】逆に、複合暖房運転が開始されるとき、外
気温度センサにより検知される外気温度が所定外気温度
を越えていなければ、室温設定器によって設定される設
定温度に関係なく、最大暖房能力が決定される。また、
複合暖房運転が開始されるとき、設定温度が所定設定温
度を越えていなければ、外気温度に関係なく同じく最大
暖房能力が決定される。従って、これらの場合には、加
熱用熱交換器で加熱される温水の目標湯温を決定する目
標湯温決定手段によって最大暖房能力に応じた高温が目
標湯温として決定され、加熱手段は、決定される高温の
温水が得られるように、制御される。この結果、最大暖
房能力に応じた高温の温水が、室内暖房機および床暖房
パネルへ供給され、速やかに、室内の温度を上昇させ
る。
Conversely, if the outside air temperature detected by the outside air temperature sensor does not exceed the predetermined outside air temperature when the combined heating operation is started, the maximum heating capacity is set regardless of the set temperature set by the room temperature setter. Is determined. Also,
If the set temperature does not exceed the predetermined set temperature when the combined heating operation is started, the maximum heating capacity is also determined regardless of the outside air temperature. Accordingly, in these cases, the target hot water temperature determining means for determining the target hot water temperature of the hot water to be heated by the heating heat exchanger determines a high temperature corresponding to the maximum heating capacity as the target hot water temperature, Control is performed so that the determined high-temperature hot water is obtained. As a result, high-temperature hot water according to the maximum heating capacity is supplied to the indoor heater and the floor heating panel, and the temperature of the room is quickly raised.

【0009】ここで、例えば、検知された外気温度が所
定外気温度より低く、設定された設定温度が所定設定温
度より高い場合にも、暖房能力は最大暖房能力に決定さ
れ、加熱される温水の温度が高温となるが、この場合に
は、外気温度が低く暖房負荷が大きいために、床暖房パ
ネルへ供給された温水の温度は大きな暖房負荷によって
低下しやすい。この結果、床暖房パネルの表面温度が不
快感を与えるほど高温になることはない。
Here, for example, even when the detected outside air temperature is lower than the predetermined outside air temperature and the set temperature is higher than the predetermined temperature, the heating capacity is determined to be the maximum heating capacity and the heated water is heated. Although the temperature becomes high, in this case, since the outside air temperature is low and the heating load is large, the temperature of the hot water supplied to the floor heating panel tends to decrease due to the large heating load. As a result, the surface temperature of the floor heating panel does not become so high as to cause discomfort.

【0010】また、例えば、検知された外気温度が所定
外気温度より高く、設定温度が所定設定温度より低い場
合にも、暖房能力は最大暖房能力に決定され、加熱され
る温水の温度が高温となるが、この場合には、暖房負荷
が小さいため、高温の温水が室内暖房機および床暖房パ
ネルへ供給されることによって、室内の温度が速やかに
上昇し、運転開始後の短時間の間に設定温度より高くな
るため、室内温度の上昇に伴って暖房能力が下げられる
ことになり、それに伴って床暖房パネルへ供給される温
水の目標温度も低くなる。従って、床暖房パネルへは、
運転開始初期に高温の温水が供給されるが、その供給時
間が短時間であるため、床暖房パネルの表面温度が不快
感を感ずるほど異常に上昇することがない。
Further, for example, even when the detected outside air temperature is higher than a predetermined outside air temperature and the set temperature is lower than a predetermined set temperature, the heating capacity is determined to be the maximum heating capacity, and the temperature of the heated hot water is determined to be high. However, in this case, since the heating load is small, high-temperature hot water is supplied to the indoor heater and the floor heating panel, so that the indoor temperature quickly rises, and during a short time after the start of operation, Since the temperature is higher than the set temperature, the heating capacity is reduced with an increase in the room temperature, and accordingly, the target temperature of the hot water supplied to the floor heating panel is also reduced. Therefore, to the floor heating panel,
Although high-temperature hot water is supplied at the beginning of the operation, the supply time is short, so that the surface temperature of the floor heating panel does not rise abnormally so as to cause discomfort.

【0011】以上の運転開始動作を行う複合温水暖房シ
ステムでは、ポンプが作動し加熱手段が加熱用熱交換器
の加熱を行うと、温水循環回路では加熱用熱交換器で加
熱された温水が室内暖房機の暖房用熱交換器と床暖房パ
ネルへ供給され、室内暖房機では対流ファンの作動によ
って循環する室内空気が加熱されて吹き出され、床面で
は近傍の空気が床暖房パネルから放射される熱によって
加熱される。その後、室温センサによる検知室温と室温
設定器による設定温度との温度差に応じて暖房能力が決
定され、各暖房能力に対応した目標湯温になるように加
熱制御手段によって加熱量を制御された加熱手段によっ
て加熱された温水が、室内暖房機と床暖房パネルへそれ
ぞれ供給されて、室内の暖房を行う。
In the combined hot water heating system performing the above-described operation start operation, when the pump is operated and the heating means heats the heating heat exchanger, the hot water heated by the heating heat exchanger is supplied to the room in the hot water circulation circuit. Heat is supplied to the heating heat exchanger of the heater and the floor heating panel. In the indoor heater, the circulating indoor air is heated and blown out by the operation of the convection fan, and on the floor, nearby air is radiated from the floor heating panel. Heated by heat. Thereafter, the heating capacity was determined according to the temperature difference between the room temperature detected by the room temperature sensor and the temperature set by the room temperature setter, and the heating amount was controlled by the heating control means so as to reach the target hot water temperature corresponding to each heating capacity. The hot water heated by the heating means is supplied to the indoor heater and the floor heating panel, respectively, to heat the room.

【0012】請求項2では、請求項1において、前記暖
房能力決定手段は、段階的に設定された複数の暖房能力
を有し、前記設定温度と前記検知室温との温度差範囲に
応じた所定周期で室内の温度を検知する室温検知動作を
行い、前記各所定周期の経過後の前記温度差範囲が前記
所定周期を決定したときの前記温度差範囲と同じである
ときには、前記暖房能力を1段だけ変更し、前記各所定
周期の経過後の前記温度差範囲が前記所定周期を決定し
たときの前記温度差範囲と異なる場合には、前記暖房能
力の変更を行わず、新たな温度差範囲に対応した所定周
期だけ待機した後に、再び、前記室温検知動作を行うこ
とを技術的手段とする。
According to a second aspect of the present invention, in the first aspect, the heating capacity determination means has a plurality of heating capacities set in stages, and a predetermined heating capacity is determined according to a temperature difference range between the set temperature and the detected room temperature. Performing a room temperature detection operation of detecting the temperature of the room in a predetermined cycle, and when the temperature difference range after the lapse of each of the predetermined cycles is the same as the temperature difference range when the predetermined cycle is determined, the heating capacity is set to 1 If only the step is changed and the temperature difference range after each of the predetermined cycles is different from the temperature difference range when the predetermined cycle is determined, the heating capacity is not changed and a new temperature difference range is set. The technical means is to perform the room temperature detection operation again after waiting for a predetermined period corresponding to the above.

【0013】請求項3では、請求項2において、前記暖
房能力決定手段は、前記暖房能力を変更する際に、前記
検知室温が前記設定温度より高い場合には、決定されて
いる前記暖房能力を1段だけ下げ、前記検知室温が前記
設定温度より低い場合には、決定されている前記暖房能
力を1段だけ上げることを技術的手段とする。
According to a third aspect of the present invention, in the second aspect, the heating capacity determining means changes the determined heating capacity if the detected room temperature is higher than the set temperature when changing the heating capacity. If the detected room temperature is lower than the set temperature by one step, the determined heating capacity is raised by one step as technical means.

【0014】以上の構成により、請求項2、3では、設
定温度に対する検知室温の温度差が算出され、その温度
差範囲に応じた周期だけそのときの暖房能力で待機す
る。暖房能力が、そのときの暖房負荷に対して過剰また
は不足している場合には、この周期時間の間に検知室温
と設定温度との温度差の範囲は、設定温度に対して高い
状態あるいは低い状態のままである。従って、所定周期
が経過した後に、検知室温が設定温度に対して低い場合
には暖房能力を1段上げ、検知室温が設定温度に対して
高い場合には暖房能力を1段下げる。この暖房能力の変
更によって室内温度が変化するが、暖房能力が暖房負荷
に対してまだ過剰または不足の状態を継続している場合
には、引き続き検知室温と設定温度との温度差の範囲
は、設定温度に対して高い状態あるいは低い状態のまま
であるため、上述のとおり、再び、暖房能力を変更す
る。
With the above arrangement, the temperature difference between the set room temperature and the detected room temperature is calculated, and the apparatus stands by at the current heating capacity for a cycle corresponding to the temperature difference range. If the heating capacity is excessive or insufficient with respect to the heating load at that time, the range of the temperature difference between the detected room temperature and the set temperature during this cycle time is high or low with respect to the set temperature. It remains in a state. Therefore, after the predetermined period elapses, if the detected room temperature is lower than the set temperature, the heating capacity is raised by one step, and if the detected room temperature is higher than the set temperature, the heating capacity is lowered by one step. The room temperature changes due to this change in the heating capacity, but if the heating capacity is still excessive or insufficient with respect to the heating load, the range of the temperature difference between the detected room temperature and the set temperature continues to be: Since the state remains higher or lower than the set temperature, the heating capacity is changed again as described above.

【0015】暖房能力の変更によって、暖房能力が暖房
負荷に対して適切なものとなれば、、温度差の範囲は、
検知室温が設定温度と同じであると判定できる範囲内に
落ちつく。この場合には、暖房能力の変更は行わず、現
状を維持するようにし、逆に、温度差が反転して暖房能
力が不足または過剰になった場合には、それぞれの周期
が経過した後に、再び、暖房能力を変更する。以後、こ
れらを繰り返す。
If the heating capacity becomes appropriate for the heating load by changing the heating capacity, the range of the temperature difference becomes
The detected room temperature falls within the range that can be determined to be the same as the set temperature. In this case, the heating capacity is not changed and the current state is maintained, and conversely, if the temperature difference is reversed and the heating capacity becomes insufficient or excessive, after each cycle has elapsed, Again, change the heating capacity. Thereafter, these are repeated.

【0016】以上のように、検知室温と設定温度との温
度差の温度差範囲に応じて決まる周期だけ待機して、温
度差範囲が変化しない場合に暖房能力の変更を行う請求
項2、3では、室内温度の立ち上がりを速やかに行うた
めには、運転開始時に必ず暖房能力を大きい側から決定
することになり、請求項1の構成を有しない場合には、
常に、最大暖房能力で運転を開始することになる。従っ
て、こうしたものでは、検知室温が設定温度に達しない
限り、運転開始時の最大暖房能力がいつまでも続くこと
になり、上述のとおり、床暖房パネルの表面温度が異常
に上昇して、不快感を招くことになる。
As described above, the heating capacity is changed when the temperature difference range does not change after waiting for a period determined according to the temperature difference range of the temperature difference between the detected room temperature and the set temperature. Then, in order to quickly raise the room temperature, the heating capacity is always determined from the larger side at the start of operation, and if the configuration of claim 1 is not provided,
The operation always starts at the maximum heating capacity. Therefore, in such a device, unless the detected room temperature reaches the set temperature, the maximum heating capacity at the start of operation will continue forever, and as described above, the surface temperature of the floor heating panel abnormally rises, causing discomfort. Will be invited.

【0017】しかし、本発明では、請求項2、3のよう
に、暖房能力を決定するものであっても、外気温度と設
定温度に対してそれぞれ上述の条件を設けて、最大暖房
能力で運転が開始される場合を制限しているため、外気
温度や設定温度が高い場合に、たとえ、検知室温が設定
温度に達しない場合が生じても、最大暖房能力で運転が
継続されることがなく、制限された制限暖房能力での運
転に限定されるため、床暖房パネルの表面温度が異常に
上昇して不快感を与える恐れがない。また、外気温度が
高く暖房負荷が小さい場合や、設定温度が必要以上に高
く設定された場合に、最大暖房能力での運転が継続され
ることがないため、無駄なエネルギー消費を無くすこと
ができる。
However, according to the present invention, even when the heating capacity is determined, the above-described conditions are provided for the outside air temperature and the set temperature, and the operation is performed at the maximum heating capacity. When the outside air temperature or the set temperature is high, even if the detected room temperature does not reach the set temperature, the operation is not continued at the maximum heating capacity. However, since the operation is limited to the limited heating capacity, there is no possibility that the surface temperature of the floor heating panel abnormally rises to cause discomfort. Further, when the outside air temperature is high and the heating load is small, or when the set temperature is set higher than necessary, the operation at the maximum heating capacity is not continued, so that unnecessary energy consumption can be eliminated. .

【0018】請求項4では、請求項3において、前記目
標湯温決定手段は、前記床暖房パネルの表面温度が所定
表面温度以下になるように前記目標湯温を決定すること
を技術的手段とする。床暖房パネルでの表面温度は、供
給される温水の温度のみで決まらず、外気温度等の暖房
負荷により変化する。従って、例えば、最大暖房能力が
決定される場合の外気温度条件下での床暖房パネルでの
放熱量を考慮して、最大暖房能力に対応する目標湯温を
設定し、さらに、その他の各暖房能力に対応して、これ
より低い目標湯温を設定しておくことによって、各暖房
能力下で常に床暖房パネルの表面温度を所定表面温度
(例えば36℃)以下に保つことができ、不快感を与え
ることをなくすことができる。
According to a fourth aspect, in the third aspect, the target hot water temperature determining means determines the target hot water temperature such that the surface temperature of the floor heating panel is equal to or lower than a predetermined surface temperature. I do. The surface temperature of the floor heating panel is determined not only by the temperature of the supplied hot water but also by the heating load such as the outside air temperature. Therefore, for example, a target hot water temperature corresponding to the maximum heating capacity is set in consideration of the amount of heat released from the floor heating panel under the outside air temperature condition when the maximum heating capacity is determined, and further, each other heating By setting a lower target hot water temperature in accordance with the capacity, the surface temperature of the floor heating panel can always be kept at a predetermined surface temperature (for example, 36 ° C.) or less under each heating capacity, and discomfort is caused. Can be eliminated.

【0019】[0019]

【発明の実施の形態】次に本発明を、以下に示す実施例
に基づいて説明する。図1は、本発明の複合温水暖房シ
ステムに係わる温水暖房式エアコンシステムの実施例を
示す。図1において、1は加熱源及び冷却源を有し屋外
に設置される室外機、2は室内上方の壁部に配置される
室内機であり、3は放熱用温水配管を有し室内の床面に
配置される床暖房パネルであり、室内機2は温水配管及
び冷却用配管によって、床暖房パネル3は温水配管によ
って室外機1とそれぞれ接続されている。この室外機
1、室内機2、床暖房パネル3及びこれらを接続する温
水配管、冷却配管により温水回路10および冷凍サイク
ル20がそれぞれ形成されている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described based on the following embodiments. FIG. 1 shows an embodiment of a hot water heating type air conditioning system according to the combined hot water heating system of the present invention. In FIG. 1, reference numeral 1 denotes an outdoor unit having a heating source and a cooling source and installed outdoors, 2 denotes an indoor unit disposed on a wall above the room, and 3 denotes a floor having a hot water pipe for heat radiation. The indoor unit 2 is connected to the outdoor unit 1 by hot water piping and cooling piping, and the floor heating panel 3 is connected to the outdoor unit 1 by hot water piping. A hot water circuit 10 and a refrigeration cycle 20 are respectively formed by the outdoor unit 1, the indoor unit 2, the floor heating panel 3, and hot water pipes and cooling pipes connecting these.

【0020】室外機1には、温水回路10の構成とし
て、一定回転で駆動される循環ポンプ11、加熱用熱交
換器12、プレッシャータンク13が設けられ、加熱用
熱交換器12には加熱源としてのガスバーナ100が備
えられている。また、床暖房パネル3へ向かう温水配管
には、床暖熱動弁14が設けられている。他方、冷凍サ
イクル20の構成としては、インバータ制御されるモー
タにより駆動されて冷媒である冷媒ガスを圧縮する圧縮
機21、凝縮器22、ストレーナ23、キャピラリチュ
ーブ24が設けられ、凝縮器22には放熱ファン25が
備えられている。
The outdoor unit 1 is provided with a circulating pump 11, a heating heat exchanger 12, and a pressure tank 13 that are driven at a constant rotation as a configuration of a hot water circuit 10. The heating heat exchanger 12 has a heating source. A gas burner 100 is provided. Further, a floor warming valve 14 is provided in the hot water pipe toward the floor heating panel 3. On the other hand, as a configuration of the refrigeration cycle 20, a compressor 21, a condenser 22, a strainer 23, and a capillary tube 24, which are driven by an inverter-controlled motor and compress refrigerant gas, are provided. A heat dissipation fan 25 is provided.

【0021】室内機2には、温水回路10の構成として
暖房用熱交換器15が設けられ、冷凍サイクル20の構
成として冷房用熱交換器26が設けられ、各熱交換器1
5、26に対して、室内空気を循環させる対流ファン2
00が備えられていて、室内空気を冷房用熱交換器26
→暖房用熱交換器15の順で通過させて、再び室内へ送
り出す。
The indoor unit 2 is provided with a heating heat exchanger 15 as a configuration of the hot water circuit 10 and a cooling heat exchanger 26 as a configuration of the refrigeration cycle 20.
Convection fan 2 for circulating indoor air for 5 and 26
00 is provided, and the indoor air is supplied to the heat exchanger 26 for cooling.
→ Pass through the heating heat exchanger 15 in order, and send it out to the room again.

【0022】室外機1、室内機2及び床暖房パネル3に
おいて、温水回路10は、循環ポンプ11の吐出側に加
熱用熱交換器12の流入側が接続され、加熱用熱交換器
12の流出側で温水配管が2つに分岐し、一方には室内
機2の暖房用熱交換器15の流入側が接続されている。
分岐した他方の温水配管には、床暖熱動弁14を介して
床暖房パネル3の流入側と接続されている。暖房用熱交
換器15の流出側の温水配管と床暖房パネル3の流出側
の温水配管は合流し、プレッシャータンク13を介して
循環ポンプ11の吸引側に接続されている。
In the outdoor unit 1, the indoor unit 2 and the floor heating panel 3, the hot water circuit 10 has a discharge side of a circulation pump 11 connected to an inflow side of a heating heat exchanger 12, and an outflow side of the heating heat exchanger 12. The hot water pipe branches into two, and one of the hot water pipes is connected to the inflow side of the heating heat exchanger 15 of the indoor unit 2.
The other branched hot water pipe is connected to the inflow side of the floor heating panel 3 via the floor warming valve 14. The hot water pipe on the outflow side of the heating heat exchanger 15 and the hot water pipe on the outflow side of the floor heating panel 3 join together and are connected to the suction side of the circulation pump 11 via the pressure tank 13.

【0023】以上の構成を有する温水回路10では、循
環ポンプ11の作動によって、循環ポンプ11→加熱用
熱交換器12→暖房用熱交換器15→プレッシャータン
ク13→循環ポンプ11の循環回路で、または循環ポン
プ11→加熱用熱交換器12→床暖熱動弁14→床暖房
パネル3→プレッシャータンク13→循環ポンプ11の
循環回路で、ガスバーナ100によって加熱された温水
が循環する。
In the hot water circuit 10 having the above configuration, the circulation pump 11 operates to operate the circulation pump 11 → heating heat exchanger 12 → heating heat exchanger 15 → pressure tank 13 → circulation pump 11. Alternatively, the hot water heated by the gas burner 100 circulates in a circulation circuit of the circulation pump 11 → the heat exchanger 12 for heating → the floor heating / heating valve 14 → the floor heating panel 3 → the pressure tank 13 → the circulation pump 11.

【0024】他方、冷凍サイクル20では、冷媒は、冷
媒圧縮機21→凝縮器22→ストレーナ23→キャピラ
リチューブ24→冷房用熱交換器26→冷媒圧縮機21
を循環し、循環中に、冷媒は凝縮器22で気相→液相の
状態変化をして熱の放出を行い、冷房用熱交換器26で
液相(霧状)→気相の状態変化をして熱の吸収を行って
室内空気を冷却する。
On the other hand, in the refrigeration cycle 20, the refrigerant is supplied to the refrigerant compressor 21 → condenser 22 → strainer 23 → capillary tube 24 → cooling heat exchanger 26 → refrigerant compressor 21
During the circulation, the refrigerant changes the state from the gas phase to the liquid phase in the condenser 22 to release heat, and the refrigerant changes state from the liquid phase (mist) to the gas phase in the cooling heat exchanger 26. To absorb heat and cool the room air.

【0025】室外機1の加熱源であるガスバーナ100
は、燃焼用空気を燃焼ファン101によって供給するも
ので、ガスバーナ100へ燃料ガスを供給する燃料供給
路102には、2つのガス電磁弁103、104とガス
比例弁105が設けられており、また、ガスバーナ10
0の炎口の近傍には、点火電極106とフレームロッド
107とが設けられている。
Gas burner 100 which is a heating source of outdoor unit 1
Is for supplying combustion air by a combustion fan 101, and a fuel supply passage 102 for supplying a fuel gas to a gas burner 100 is provided with two gas solenoid valves 103 and 104 and a gas proportional valve 105. , Gas burner 10
An ignition electrode 106 and a frame rod 107 are provided in the vicinity of the flame outlet 0.

【0026】制御装置400は、使用者によって操作さ
れるリモコン4に応じて各種の運転をマイコンによって
制御するもので、室外機1と室内機2とに別れて設けら
れていて、相互に各種の信号を伝送する。
The control device 400 controls various operations by a microcomputer in accordance with a remote controller 4 operated by a user. The control device 400 is provided separately for the outdoor unit 1 and the indoor unit 2 and mutually controls various operations. Transmit the signal.

【0027】制御装置400は、各種の制御を行うため
に、室外機1の加熱用熱交換器12の温水の流出側で温
水温度を検知する高温水サーミスタ401、室内機2の
暖房用熱交換器15の温水の流出側で温水温度を検知す
る室内温水サーミスタ402、室内機2内で室内温度を
検知する室温サーミスタ403、室外機1が設置される
屋外の外気温度を検知する外気温度サーミスタ404を
備えている。
The control device 400 includes a high-temperature water thermistor 401 for detecting the temperature of hot water at the outlet of the hot water of the heating heat exchanger 12 of the outdoor unit 1 and a heat exchange for heating of the indoor unit 2 for performing various controls. The indoor hot water thermistor 402 for detecting the hot water temperature on the hot water outflow side of the unit 15, the room temperature thermistor 403 for detecting the indoor temperature in the indoor unit 2, and the outdoor air thermistor 404 for detecting the outdoor outdoor temperature where the outdoor unit 1 is installed. It has.

【0028】以上の構成からなる温水暖房式エアコンシ
ステムは、制御装置400によって、暖房運転として
は、床暖房パネル3のみによる床単独運転、床暖房パネ
ル3と室内機2によるデュエット暖房運転を、また、冷
凍サイクル20の作動を伴うものでは、室内機2のみに
よるドライ運転、床暖房パネル3と室内機2によるデュ
エットドライ運転、室内機2による冷房運転がそれぞれ
制御される。なお、冷房運転および各ドライ運転におい
ては、圧縮機21を駆動するインバータ制御として、圧
縮機21の回転数が制御される。以下では、暖房運転と
しての床単独運転とデュエット暖房運転について説明す
る。
In the hot water heating type air-conditioning system having the above-described configuration, the controller 400 controls the floor heating panel 3 to operate the floor alone, the floor heating panel 3 and the indoor unit 2 to perform the duet heating operation. In the operation involving the operation of the refrigeration cycle 20, the dry operation only by the indoor unit 2, the duet dry operation by the floor heating panel 3 and the indoor unit 2, and the cooling operation by the indoor unit 2 are controlled. In the cooling operation and each dry operation, the rotation speed of the compressor 21 is controlled as inverter control for driving the compressor 21. Hereinafter, the floor alone operation and the duet heating operation as the heating operation will be described.

【0029】〔床単独運転〕床単独運転は、床暖房パネ
ル3のみによって暖房運転を行うものである。床単独運
転では、循環ポンプ11を一定回転で駆動し、決定され
た目標湯温TOになるように、燃焼ファン101および
ガス比例弁105を制御して、ガスバーナ100の燃焼
量を調節する。
[Floor-only operation] In the floor-only operation, heating operation is performed only by the floor heating panel 3. In the sole-bed operation, the circulation pump 11 is driven at a constant speed, and the combustion fan 101 and the gas proportional valve 105 are controlled to adjust the combustion amount of the gas burner 100 so that the determined target hot water temperature TO is attained.

【0030】床単独運転では、運転開始時に、リモコン
4の床暖房運転のオン操作に応じて床暖房ホットダッシ
ュ動作を一定時間の間だけ行う。床暖房ホットダッシュ
動作の後には、リモコン4により7段階に設定される床
暖房レベルHnと外気温度サーミスタ404の検知する
外気温度Taとに応じて、加熱用熱交換器12で加熱さ
れる温水の目標湯温TOを決定する。
In the single floor operation, the floor heating hot dash operation is performed only for a predetermined time in accordance with the ON operation of the floor heating operation of the remote controller 4 at the start of the operation. After the floor heating hot dash operation, the warm water heated by the heating heat exchanger 12 is set according to the floor heating level Hn set in seven steps by the remote controller 4 and the outside air temperature Ta detected by the outside air temperature thermistor 404. The target hot water temperature TO is determined.

【0031】リモコン4によって設定される各床暖房レ
ベルは、暖房能力が最低の1速では、床面温度が26℃
になるように、中間の4速では、床面温度が31℃にな
るように、最高の7速では、床面温度が36℃になるよ
うにするものであり、それぞれの床暖房レベルにおい
て、外気温度Taが低いほど高く、高いほど低く目標湯
温TOを外気温度Taに応じて決定するものである。床
単独運転において決定される目標湯温TOの一例を表1
に示す。
The floor heating level set by the remote controller 4 is such that the floor temperature is 26 ° C. in the first speed having the lowest heating capacity.
In the fourth intermediate speed, the floor surface temperature is set to 31 ° C., and in the seventh highest speed, the floor surface temperature is set to 36 ° C. At each floor heating level, The lower the outside air temperature Ta, the higher the temperature, and the higher the outside air temperature, the lower the target hot water temperature TO is determined in accordance with the outside air temperature Ta. Table 1 shows an example of the target hot water temperature TO determined in the single floor operation.
Shown in

【0032】[0032]

【表1】 [Table 1]

【0033】なお、床単独運転の間にも、加熱用熱交換
器12で加熱された温水が室内機2の暖房用熱交換器1
5にも循環するが、床単独運転では、対流ファン200
の作動は停止されていて、暖房用熱交換器15の内部を
通過する温水の熱が室内へ放出されにくくなっているた
め、暖房用熱交換器15による暖房効果はほとんど得ら
れない。また、床暖房ホットダッシュ動作では、外気温
度Taと床暖房レベルHnに応じた上記表1の目標湯温
TOではなく、各床暖房レベルHnに応じた高温の目標
湯温TO(例えば65℃〜85℃)に設定して、ガスバ
ーナ100の加熱量を高温サーミスタ401の検知温度
に基づいて制御する。
The hot water heated by the heating heat exchanger 12 is supplied to the heating heat exchanger 1 of the indoor unit 2 even during the floor alone operation.
5, but in the floor alone operation, the convection fan 200
Is stopped, and the heat of the hot water passing through the interior of the heating heat exchanger 15 is hardly released to the room, so that the heating effect of the heating heat exchanger 15 is hardly obtained. Further, in the floor heating hot dash operation, instead of the target hot water temperature TO in Table 1 according to the outside air temperature Ta and the floor heating level Hn, a high target water temperature TO (for example, 65 ° C. or more) corresponding to each floor heating level Hn. (85 ° C.), and controls the heating amount of the gas burner 100 based on the detected temperature of the high temperature thermistor 401.

【0034】〔デュエット暖房運転(複合暖房運転)〕
デュエット暖房運転は、室内機2と床暖房パネル3とに
より室内の暖房を行うものであるが、主に室内機2によ
って室内の温度を上昇させるもので、床暖房パネル3
は、室内機2の補助として作用することになる。従っ
て、上記の床単独運転において、制御に用いられたリモ
コン4により設定される床暖房レベルHnは、デュエッ
ト暖房運転では用いられず、暖房能力の制御には無関係
となる。
[Duet heating operation (combined heating operation)]
The duet heating operation is for heating the room by the indoor unit 2 and the floor heating panel 3, but is mainly for increasing the room temperature by the indoor unit 2 and the floor heating panel 3.
Will act as an aid to the indoor unit 2. Therefore, in the above-mentioned floor independent operation, the floor heating level Hn set by the remote controller 4 used for the control is not used in the duet heating operation, and has no relation to the control of the heating capacity.

【0035】デュエット暖房運転でも、循環ポンプ11
を一定回転で駆動し、加熱用熱交換器12で加熱される
温水の温度が、決定された目標湯温TOになるように、
燃焼ファン101およびガス比例弁105を制御して、
ガスバーナ100の燃焼量を調節する。また、室内機2
の対流ファン200の駆動、停止を制御して、駆動時に
は、暖房用熱交換器15に室内空気を通過させることに
よって、加熱して室内へ温風として吹き出す。
Even in the duet heating operation, the circulation pump 11
Is driven at a constant rotation so that the temperature of the hot water heated by the heating heat exchanger 12 becomes the determined target hot water temperature TO.
By controlling the combustion fan 101 and the gas proportional valve 105,
The combustion amount of the gas burner 100 is adjusted. In addition, indoor unit 2
The driving and stopping of the convection fan 200 are controlled, and at the time of driving, the room air is passed through the heating heat exchanger 15 to be heated and blown into the room as warm air.

【0036】デュエット暖房運転の能力制御では、外気
温度サーミスタ404によって検知される外気温度Ta
およびリモコン4によって設定される目標温度Tset と
に応じた始動制御を行い、その後、室温サーミスタ40
3により検知される検知室温Trとリモコン4による設
定温度Tset との温度差に応じて暖房能力を最小の1速
から最大の8速までの間で決定する温調制御を行う。
In the capacity control of the duet heating operation, the outside air temperature Ta detected by the outside air temperature thermistor 404 is used.
And start control according to the target temperature Tset set by the remote controller 4, and thereafter, the room temperature thermistor 40
In accordance with the temperature difference between the detected room temperature Tr detected by the controller 3 and the set temperature Tset by the remote controller 4, a temperature control is performed to determine the heating capacity from the minimum first speed to the maximum eighth speed.

【0037】始めに、図2に基づいて、始動制御につい
て説明する。本実施例の始動制御は、通常では、速やか
に室内温度を上昇させることができるとともに、外気温
度が高く暖房負荷が小さい場合や、リモコン4の設定温
度Tset が不必要に高く、暖房中に室内温度が設定温度
Tset に容易に達しにくいような場合に、高温の温水が
床暖房パネル3へ供給されて、床暖房パネル3の表面温
度が異常に高くなって、使用者に不快感を与えることが
ないようにするためのものである。
First, the starting control will be described with reference to FIG. Normally, the start control according to the present embodiment can quickly raise the room temperature, and when the outside air temperature is high and the heating load is small, or when the set temperature Tset of the remote controller 4 is unnecessarily high and the room temperature is increased during heating. In the case where the temperature does not easily reach the set temperature Tset, high-temperature hot water is supplied to the floor heating panel 3 and the surface temperature of the floor heating panel 3 becomes abnormally high, thereby causing discomfort to the user. There is no such thing.

【0038】ここでは、複合暖房運転が開始されると、
始めに外気温度サーミスタ404によって検知される外
気温度Taが、暖房負荷の大きさを判別するための所定
外気温度として設定された15℃を越えるか否かを判別
する。外気温度Taが15℃以下の場合には(ステップ
10においてYES)、暖房負荷が十分に大きく、高温
の温水を床暖房パネル3へ連続して供給しても、床暖房
パネル3からの放熱量が大きいために、床暖房パネル3
の表面温度が異常に高くなることがないと判断して、通
常の運転開始として、暖房能力を8速に設定して運転を
開始し(ステップ11)、後述する温調制御へ移行する
(ステップ100)。
Here, when the combined heating operation is started,
First, it is determined whether or not the outside air temperature Ta detected by the outside air temperature thermistor 404 exceeds 15 ° C. set as a predetermined outside air temperature for determining the size of the heating load. When the outside air temperature Ta is equal to or lower than 15 ° C. (YES in Step 10), the heating load is sufficiently large, and even if high-temperature hot water is continuously supplied to the floor heating panel 3, the heat radiation amount from the floor heating panel 3 Floor heating panel 3
It is determined that the surface temperature does not become abnormally high, and as a normal operation start, the heating capacity is set to the eighth speed, the operation is started (step 11), and the process shifts to the temperature control control described later (step 11). 100).

【0039】ステップ10において、外気温度Taが1
5℃を越える場合には(NO)、さらに、リモコン4に
よって設定された設定温度Tset が所定設定温度として
設定された27℃を越えるか否かを判別する。設定温度
Tset が27℃以下の場合は(ステップ12においてY
ES)、デュエット暖房運転によって熱量が室内に与え
られたとき、上述のとおり外気温度taが15℃であっ
て暖房負荷が小さい状況下にあるために、室内温度が十
分に上昇して、確実に室内温度が設定温度Tset に到達
すると見なすことができる場合である。この場合には、
室内温度が十分に上昇したときに、後述する温調制御に
よって暖房能力が次第に小さくなるように変更され、こ
の暖房能力の変更に伴って、室内暖房機2および床暖房
パネル3へ供給される温水の温度が次第に低くなること
が予測できる。
In step 10, the outside air temperature Ta is set to 1
If it exceeds 5 ° C. (NO), it is further determined whether or not the set temperature Tset set by the remote controller 4 exceeds 27 ° C. set as a predetermined set temperature. If the set temperature Tset is 27 ° C. or less (Y in Step 12)
ES), when heat is given to the room by the duet heating operation, since the outside air temperature ta is 15 ° C. and the heating load is small as described above, the room temperature sufficiently rises, and This is the case where it can be considered that the room temperature reaches the set temperature Tset. In this case,
When the room temperature has risen sufficiently, the heating capacity is changed so as to be gradually reduced by the temperature control control described later, and the hot water supplied to the room heater 2 and the floor heating panel 3 with the change in the heating capacity. Can be expected to gradually decrease.

【0040】この結果、運転開始当初は高温の温水が供
給されても、温調制御による暖房能力の変更に伴って供
給される温水の温度が次第に低く変更されるため、高温
の温水が継続して供給される時間が長時間にならず、床
暖房パネル3の表面温度が異常高温になることがない。
従って、この場合(ステップ12においてYES)に
は、室内温度の速やかな上昇を優先させるために、ステ
ップ11へ移行して、暖房能力が8速の通常の運転開始
をする。
As a result, even if high-temperature hot water is supplied at the beginning of the operation, the temperature of the supplied hot water is gradually lowered in accordance with the change of the heating capacity by the temperature control, so that the high-temperature hot water continues to be supplied. The supply time does not become long, and the surface temperature of the floor heating panel 3 does not become abnormally high.
Therefore, in this case (YES in step 12), the process shifts to step 11 in order to give priority to a quick rise in the room temperature, and normal operation with a heating capacity of 8th speed is started.

【0041】設定温度Tset が27℃を越える場合には
(ステップ12においてNO)、設定温度Tset が過剰
に高く、通常の運転開始を行って、暖房能力が8速に決
定されると、室内温度が容易に設定温度Tset に到達し
ないばかりでなく、暖房負荷が小さい状況下であるため
に、床暖房パネル3における放熱が促進されないため、
高温の温水が床暖房パネルへ供給される状態が長く継続
されると、床暖房パネル3の表面温度が著しく上昇し、
使用者に不快感を与える状態である。このため、この場
合には、暖房能力を最大暖房能力ではなく、制限暖房能
力である6速に制限した暖房能力で運転を開始して(ス
テップ13)、後述する温調制御へ移行する(ステップ
100)。
If the set temperature Tset exceeds 27 ° C. (NO in step 12), the set temperature Tset is excessively high, a normal operation is started, and if the heating capacity is determined to be the 8th speed, the indoor temperature is set. Not only does not easily reach the set temperature Tset, but also because the heating load is small, the heat radiation in the floor heating panel 3 is not promoted.
If the state in which high-temperature hot water is supplied to the floor heating panel continues for a long time, the surface temperature of the floor heating panel 3 rises significantly,
This is a state that gives the user discomfort. For this reason, in this case, the operation is started with the heating capacity limited to the 6th speed, which is the limited heating capacity, instead of the maximum heating capacity (step 13), and the process proceeds to the temperature control control described later (step 13). 100).

【0042】以上の始動制御を行って運転を開始した後
には温調制御を行う。次に、上記ステップ100におけ
る温調制御について説明する。温調制御は、ある速数で
運転した状態で検知室温Trを設定温度Tset と比較
し、設定温度Tset に対する検知室温Trの温度差の程
度に応じた周期時間だけ同じ速数の暖房能力を継続し、
温度差に応じた周期時間が経過した後に、温度差が同じ
温度差範囲内にある場合には、その速数Nを大きくまた
は小さくする決定して、その決定に応じて現状の速数N
を上下させることによって、新たな速数Nを決定して、
以後、同様に、温度差に応じた周期で検知室温Trを設
定温度Tset と比較して、必要に応じて速数を変更す
る。
After the operation is started by performing the above-described start control, temperature control is performed. Next, the temperature control in step 100 will be described. In the temperature control, the detected room temperature Tr is compared with the set temperature Tset while operating at a certain speed, and the heating capacity of the same speed is continued for a cycle time corresponding to the degree of the temperature difference between the detected room temperature Tr and the set temperature Tset. And
If the temperature difference is within the same temperature difference range after the elapse of the cycle time according to the temperature difference, it is determined to increase or decrease the speed N, and according to the determination, the current speed N
To determine a new speed N,
Thereafter, similarly, the detected room temperature Tr is compared with the set temperature Tset at a cycle corresponding to the temperature difference, and the speed is changed as necessary.

【0043】この決定のために、本実施例の温調制御で
は、検知室温Trが設定温度Tsetと等しいとみなされ
る温度範囲として、検知室温Trが設定温度Tset に対
して等しい状態から1℃までの範囲で低い状態を設定し
ている。すなわち、 温度差ΔT=検知室温Tr−設定温度Tset で得られる温度差ΔTが、−1≦ΔT≦0℃の場合を、
検知室温Trが設定温度Tset と等しいと判断する。ま
た、温度差ΔTが、ΔT<−1℃の場合には、検知室温
Trが設定温度Tset より低く、1℃<ΔTの場合に
は、検知室温Trが設定温度Tset より高いとそれぞれ
判断する。
For this determination, in the temperature control of this embodiment, the temperature range in which the detected room temperature Tr is considered to be equal to the set temperature Tset is set to a temperature range from a state where the detected room temperature Tr is equal to the set temperature Tset to 1 ° C. The low state is set in the range. That is, when the temperature difference ΔT obtained by the temperature difference ΔT = detected room temperature Tr−set temperature Tset is −1 ≦ ΔT ≦ 0 ° C.,
It is determined that the detected room temperature Tr is equal to the set temperature Tset. When the temperature difference ΔT is ΔT <−1 ° C., it is determined that the detected room temperature Tr is lower than the set temperature Tset, and when 1 ° C. <ΔT, the detected room temperature Tr is higher than the set temperature Tset.

【0044】この温度差判断に基づいた本実施例の温調
制御について、図3に基づいて、以下に詳細に説明す
る。まず、検知室温Trを設定温度Tset と比較し、そ
の温度差ΔTが−1≦ΔT≦0℃の場合には(ステップ
101において[−1〜0℃])の場合には、検知室
温Trが設定温度Tset と等しい状態であると判断し
て、現状維持として速数Nの変更を行わず、検知室温T
rと設定温度Tset との比較を繰り返す(ステップ10
1)。
The temperature control of this embodiment based on the temperature difference judgment will be described in detail below with reference to FIG. First, the detected room temperature Tr is compared with the set temperature Tset, and when the temperature difference ΔT is −1 ≦ ΔT ≦ 0 ° C. ([−1 to 0 ° C. in step 101]), the detected room temperature Tr is It is determined that the state is equal to the set temperature Tset, and the speed N is not changed to maintain the current state.
r and the set temperature Tset are repeated (step 10).
1).

【0045】検知室温Trを設定温度Tset と比較し、
設定温度Tset に対して検知室温Trが1℃以上低く、
その温度差ΔTがΔT<−1℃の場合には(ステップ1
01において[−1℃以下])、そのときの速数Nで
7分間待機し(ステップ110)、7分間経過した時点
でも、なお設定温度Tset に対して検知室温Trが、1
℃以上低い場合には(ステップ111においてYE
S)、速数Nを1速上げて(ステップ112)、暖房能
力を大きくする。
The detected room temperature Tr is compared with the set temperature Tset,
The detected room temperature Tr is lower than the set temperature Tset by 1 ° C. or more,
If the temperature difference ΔT is ΔT <−1 ° C. (Step 1
01 [-1 ° C. or less]), and waits for 7 minutes at the speed N at that time (step 110).
° C or more (YE
S) The speed N is increased by one speed (step 112) to increase the heating capacity.

【0046】検知室温Trを設定温度Tset と比較した
場合に、逆に設定温度Tset に対して検知室温Trが+
1℃までの範囲で高く、その温度差ΔTがΔT≦1℃の
場合には(ステップ101において[+1℃以
内])、そのときの速数Nで5分間待機し(ステップ1
20)、5分間経過した時点でも、なお設定温度Tset
に対して検知室温Trが、1℃までの範囲で高い場合に
は(ステップ121においてYES)、速数Nを1速下
げて(ステップ122)、暖房能力を小さくする。
When the detected room temperature Tr is compared with the set temperature Tset, the detected room temperature Tr is +
If the temperature difference is high up to 1 ° C. and the temperature difference ΔT satisfies ΔT ≦ 1 ° C. ([within + 1 ° C.] in step 101), it waits for 5 minutes at the speed N at that time (step 1).
20) Even after 5 minutes, the set temperature Tset
On the other hand, if the detected room temperature Tr is high in the range up to 1 ° C. (YES in step 121), the speed N is decreased by one speed (step 122) to reduce the heating capacity.

【0047】検知室温Trを設定温度Tset と比較した
場合に、設定温度Tset に対して検知室温Trが1℃以
上高く、その温度差ΔTが1℃<ΔTの場合には(ステ
ップ101において[+1℃以上])、そのときの速
数Nで3分間待機し(ステップ130)、3分間経過し
た時点でも、なお設定温度Tset に対して検知室温Tr
が、1℃以上高い場合には(ステップ131においてY
ES)、対流ファン200の作動を3分間停止する(ス
テップ132)。このとき、室内機2の暖房用熱交換器
15にも温水が循環するが、暖房用熱交換器15は対流
ファン200の作動によって内部を通過する温水の熱が
室内へ放出される構造であるため、暖房用熱交換器15
による暖房効果はほとんど得られない。この対流ファン
200の停止時は、室内機2による暖房を停止させ、床
暖房パネル3のみによって暖房を行うことになり、この
場合は、大きな熱量で能動的に暖房を行うのではなく、
室内温度が著しく低下することを防止するための熱量が
室内に放出されるようなホットキープ動作を行う。これ
によって、ホットキープ動作の3分間は、室内を暖める
能力がさらに低下するため、室内温度の上昇を抑制で
き、室内温度を下げることが可能となる。
When the detected room temperature Tr is compared with the set temperature Tset, if the detected room temperature Tr is higher than the set temperature Tset by 1 ° C. or more and the temperature difference ΔT is 1 ° C. <ΔT ([+1 ° C or more]), and waits for 3 minutes at the speed N at that time (step 130). Even after the lapse of 3 minutes, the detected room temperature Tr still exceeds the set temperature Tset.
Is higher than 1 ° C. (Y in step 131)
ES), the operation of the convection fan 200 is stopped for 3 minutes (step 132). At this time, the hot water circulates also in the heating heat exchanger 15 of the indoor unit 2, but the heating heat exchanger 15 has a structure in which the heat of the hot water passing through the inside is released into the room by the operation of the convection fan 200. Therefore, the heating heat exchanger 15
The heating effect is hardly obtained. When the convection fan 200 is stopped, heating by the indoor unit 2 is stopped, and heating is performed only by the floor heating panel 3. In this case, heating is not actively performed with a large amount of heat.
A hot keeping operation is performed such that heat for preventing the indoor temperature from dropping remarkably is released into the room. Thus, the ability to warm the room is further reduced for three minutes of the hot keeping operation, so that the rise in the room temperature can be suppressed, and the room temperature can be lowered.

【0048】なお、ホットキープ動作においては、対流
ファン200の作動が停止するため、暖房効率が下がる
とともに、室内空気の循環が停止して検知室温Trの正
しい検知ができなくなる。このため、ホットキープ動作
の3分間が経過した後には、再び対流ファン200を3
分間だけ駆動する(ステップ133)。この対流ファン
200が駆動されている3分間に、室内空気が暖房用熱
交換器15を通過して冷却するため、正しく室内温度を
検知することができる。
In the hot keeping operation, since the operation of the convection fan 200 is stopped, the heating efficiency is reduced, and the circulation of the indoor air is stopped, so that the detection of the detected room temperature Tr cannot be performed properly. Therefore, after three minutes of the hot keeping operation, the convection fan 200 is turned off again for three minutes.
It is driven for only a minute (step 133). Since the room air passes through the heating heat exchanger 15 and cools for three minutes while the convection fan 200 is driven, the room temperature can be correctly detected.

【0049】3分間の対流ファン200の作動の後に、
検知室温Trが設定温度Tset よりまだ高い場合には、
再び、対流ファン200の作動を停止してホットキープ
動作を行い、検知室温Trが設定温度Tset より下がっ
ていた場合には、ホットキープ動作を終了して、再び温
調動作を行う。
After operating the convection fan 200 for three minutes,
If the detected room temperature Tr is still higher than the set temperature Tset,
Again, the operation of the convection fan 200 is stopped to perform the hot keeping operation. If the detected room temperature Tr is lower than the set temperature Tset, the hot keeping operation is terminated and the temperature control operation is performed again.

【0050】以上の温調制御によって決定される速数N
と、各速数Nにおける目標湯温TOとの関係を表2に示
す。
The speed N determined by the temperature control described above
Table 2 shows the relationship between the target hot water temperature TO at each speed N.

【0051】[0051]

【表2】 [Table 2]

【0052】上記、ステップ132によって対流ファン
200が停止して、室内機2の暖房が停止しているホッ
トキープ動作の間は、検知室温Trが設定温度Tset に
対して十分に上昇している状態であり、室内に対する大
きな加熱量が不要な状態である。従って、ホットキープ
動作の間には、加熱用熱交換器12で加熱される温水の
目標湯温TOを、1速における目標湯温TOではなく、
外気温度サーミスタ404によって検知される外気温度
Taに基づいて決定する。本実施例時では、外気温度T
aに対応してあらかじめ設定されたホットキープ動作時
の目標湯温TOのデータがマイコンのメモリに記憶され
ており、外気温度サーミスタ404により検知された外
気温度Taが与えられると、その温度に対応した目標湯
温TOが決定される。ホットキープ動作時において決定
される目標湯温TOの一例を表3に示す。
During the hot keeping operation in which the convection fan 200 is stopped in step 132 and the heating of the indoor unit 2 is stopped, the detected room temperature Tr is sufficiently raised with respect to the set temperature Tset. This is a state where a large heating amount for the room is unnecessary. Therefore, during the hot keeping operation, the target hot water temperature TO of the hot water heated by the heating heat exchanger 12 is not the target hot water temperature TO in the first speed, but
The determination is made based on the outside air temperature Ta detected by the outside air temperature thermistor 404. In this embodiment, the outside air temperature T
The data of the target hot water temperature TO at the time of the hot keeping operation set in advance corresponding to a is stored in the memory of the microcomputer, and when the outside air temperature Ta detected by the outside air temperature thermistor 404 is given, the temperature corresponding to that temperature is The determined target hot water temperature TO is determined. Table 3 shows an example of the target hot water temperature TO determined during the hot keeping operation.

【0053】[0053]

【表3】 [Table 3]

【0054】表3に示すように、ホットキープ動作の場
合には、例えば、外気温度Taが0℃以下の場合には、
目標湯温TOが70℃に決定され、20℃以上の場合に
は目標湯温TOが40℃に決定されるなど、単純に固定
された一定の温度の温水が床暖房パネル3に供給されな
いため、時節毎の暖房負荷に適した暖房能力が得られ
る。
As shown in Table 3, in the case of the hot keeping operation, for example, when the outside air temperature Ta is 0 ° C. or less,
Since the target hot water temperature TO is determined to be 70 ° C., and if the target hot water temperature TO is higher than 20 ° C., the target hot water temperature TO is determined to be 40 ° C., for example, the hot water of a fixed fixed temperature is not supplied to the floor heating panel 3. Thus, a heating capacity suitable for the heating load at each time is obtained.

【0055】尚、対流ファン200は、上記のとおり決
定される目標湯温TOの温水が暖房用熱交換器15へ供
給される場合に、室内機2から吹き出される温風の温度
が最適になるように、各速数N毎に適切に設定された回
転数にそれぞれ制御される。また、運転終了後には、ガ
スバーナ100の燃焼停止後、2分を経過してから循環
ポンプ11の作動を停止することにより、余熱を利用し
て滑らかに暖房運転を停止させる。
The convection fan 200 optimizes the temperature of the hot air blown from the indoor unit 2 when the hot water having the target hot water temperature TO determined as described above is supplied to the heating heat exchanger 15. In such a manner, the rotation speed is controlled to an appropriately set rotation speed for each speed N. Further, after the operation is completed, the operation of the circulation pump 11 is stopped two minutes after the combustion of the gas burner 100 is stopped, so that the heating operation is smoothly stopped using the residual heat.

【0056】以下、デュエット暖房運転における作動を
説明する。リモコン4により、デュエット暖房運転の開
始が指示されると、室内温度の上昇を速やかに行うため
に、デュエット暖房運転の開始後の30分間は、温水回
路10の床暖房パネル3への温水配管に設けられた床暖
熱動弁14を閉弁し、循環ポンプ11を駆動するととも
にガスバーナ100の燃焼を開始し、加熱用熱交換器1
2で加熱される温水の温度を、上述の始動制御により選
択された速数Nの目標湯温TOに調節する。
Hereinafter, the operation in the duet heating operation will be described. When the start of the duet heating operation is instructed by the remote controller 4, in order to quickly raise the room temperature, the hot water piping to the floor heating panel 3 of the hot water circuit 10 is connected for 30 minutes after the start of the duet heating operation. The provided floor warming valve 14 is closed, the circulating pump 11 is driven, and the combustion of the gas burner 100 is started.
The temperature of the hot water heated in Step 2 is adjusted to the target hot water temperature TO of the speed N selected by the above-described start control.

【0057】この始動制御によって、デュエット暖房運
転が開始されるとき、外気温度サーミスタ404により
検知される外気温度Taが15℃を越えていて、且つ、
リモコン4によって設定される設定温度Tset が27℃
を越えている場合には、最大速数である8速より小さく
制限された6速が速数Nとして決定される。この結果、
加熱用熱交換器12で加熱される温水の目標湯温TO
は、8速に対応した高温ではなく6速に応じた制限され
た低めの目標湯温TOとなるため、室内機2および床暖
房パネル3へは、制限された目標湯温TOに加熱された
温水が供給される。従って、外気温度が高くて暖房負荷
が小さい場合に、設定温度Tset が高くなっていても、
床暖房パネル3へ高温の温水が供給されることがなく、
温度が制限された温水が供給されるため、床暖房パネル
3の表面温度が異常に上昇して、使用者に不快感を与え
ることがない。また、暖房負荷が小さい場合に、過剰な
暖房能力で運転を開始することがないため、エネルギー
消費を抑制できる。
According to this start control, when the duet heating operation is started, the outside air temperature Ta detected by the outside air temperature thermistor 404 exceeds 15 ° C., and
The set temperature Tset set by the remote controller 4 is 27 ° C
Is exceeded, the sixth speed limited to be smaller than the maximum speed of 8 is determined as the speed N. As a result,
Target hot water temperature TO of hot water heated by heating heat exchanger 12
Is not the high temperature corresponding to the 8th speed but the limited lower target hot water temperature TO corresponding to the 6th speed, so that the indoor unit 2 and the floor heating panel 3 are heated to the limited target hot water temperature TO. Hot water is supplied. Therefore, when the outside air temperature is high and the heating load is small, even if the set temperature Tset is high,
No hot water is supplied to the floor heating panel 3,
Since the hot water whose temperature is limited is supplied, the surface temperature of the floor heating panel 3 does not abnormally rise and does not cause discomfort to the user. Further, when the heating load is small, the operation is not started with an excessive heating capacity, so that energy consumption can be suppressed.

【0058】逆に、デュエット暖房運転が開始されると
き、外気温度サーミスタ404により検知される外気温
度Taが15℃を越えていなければ、リモコン4によっ
て設定される設定温度Tset に関係なく、最大速数であ
る8速が決定される。また、デュエット暖房運転が開始
されるとき、設定温度Tset が27℃を越えていなけれ
ば、外気温度に関係なく同じく最大速数の8速が決定さ
れる。従って、これらの場合には、最大速数に応じた高
温が目標湯温TOとして決定され、ガスバーナ100の
燃焼量は、決定される高温の温水が得られるように、制
御される。この結果、8速に応じた高温の温水が、室内
機2および床暖房パネル3へ供給され、速やかに、室内
の温度を上昇させる。
Conversely, if the outside air temperature Ta detected by the outside air temperature thermistor 404 does not exceed 15 ° C. when the duet heating operation is started, the maximum speed is set regardless of the set temperature Tset set by the remote controller 4. The eighth gear, which is a number, is determined. Also, when the duet heating operation is started, if the set temperature Tset does not exceed 27 ° C., the maximum speed of the eighth speed is determined regardless of the outside air temperature. Therefore, in these cases, the high temperature corresponding to the maximum speed is determined as the target hot water temperature TO, and the combustion amount of the gas burner 100 is controlled such that the determined high-temperature hot water is obtained. As a result, high-temperature hot water corresponding to the eighth speed is supplied to the indoor unit 2 and the floor heating panel 3 and quickly raises the indoor temperature.

【0059】ここで、例えば、検知された外気温度Ta
が15℃より低く、設定温度Tsetが27℃より高い場
合にも、速数Nは8速に決定され、加熱される温水の温
度が高温となるが、この場合には、外気温度が低く暖房
負荷が大きいために、床暖房パネル3へ供給された温水
の温度は大きな暖房負荷によって低下しやすい。この結
果、床暖房パネル3の表面温度が不快感を与えるほど高
温になることはない。
Here, for example, the detected outside air temperature Ta
Is lower than 15 ° C. and the set temperature Tset is higher than 27 ° C., the speed N is determined to be 8th, and the temperature of the hot water to be heated is high. In this case, the outside air temperature is low and the heating Since the load is large, the temperature of the hot water supplied to the floor heating panel 3 tends to decrease due to a large heating load. As a result, the surface temperature of the floor heating panel 3 does not become so high as to cause discomfort.

【0060】また、例えば、検知された外気温度Taが
15℃より高く、設定温度Tset が27℃より低い場合
にも、速数Nは8速に決定され、加熱される温水の温度
が高温となるが、この場合には、暖房負荷が小さいた
め、高温の温水が室内機2および床暖房パネル3へ供給
されることによって、室内の温度が速やかに上昇し、運
転開始後の短時間の間に設定温度Tset より高くなるた
め、室内温度の上昇に伴って温調制御によって速数Nが
下げられることになり、それに伴って床暖房パネル3へ
供給される温水の目標温度TOも低くなる。従って、床
暖房パネル3へは、運転開始初期に高温の温水が供給さ
れるが、その供給時間が短時間であるため、床暖房パネ
ル3の表面温度が不快感を感ずるほと異常に上昇するこ
とがない。
Also, for example, when the detected outside air temperature Ta is higher than 15 ° C. and the set temperature Tset is lower than 27 ° C., the speed N is determined to be 8 speed, and the temperature of the heated hot water is determined to be high. However, in this case, since the heating load is small, high-temperature hot water is supplied to the indoor unit 2 and the floor heating panel 3 to quickly raise the indoor temperature, and for a short time after the start of operation. Since the set temperature Tset is higher than the set temperature Tset, the speed N is reduced by the temperature control as the room temperature increases, and accordingly, the target temperature TO of the hot water supplied to the floor heating panel 3 also decreases. Accordingly, high-temperature hot water is supplied to the floor heating panel 3 at the beginning of the operation, but since the supply time is short, the surface temperature of the floor heating panel 3 rises abnormally when the user feels discomfort. Nothing.

【0061】なお、ガスバーナ100の所定の点火制御
し、循環ポンプ11の駆動を開始した後でも、室内温水
サーミスタ402の検知温度が十分に高くなるまでは
(例えば30℃)、冷風の吹き出しを防止するために、
対流ファン200の駆動を開始せず、十分温度が上昇し
た後に、対流ファン200による送風を開始する。
Even after the predetermined ignition control of the gas burner 100 is started and the driving of the circulation pump 11 is started, the blowing of cold air is prevented until the detected temperature of the indoor hot water thermistor 402 becomes sufficiently high (for example, 30 ° C.). To do
After the temperature of the convection fan 200 has sufficiently increased without starting the driving of the convection fan 200, the convection fan 200 starts blowing air.

【0062】その後の温調制御では、リモコン4による
設定温度Tset と室温サーミスタ403の検知による検
知室温Trとの温度差に基づいて決まる暖房能力として
の速数Nに応じて加熱用熱交換器12で加熱されて流出
する温水の目標湯温TOが決定される。デュエット暖房
運転の開始後の30分間は、床暖熱動弁14が閉弁され
ているため、温水回路10内の温水は、室内機2の暖房
用熱交換器15のみへ供給され、対流ファン200の作
動によって温風が室内へ吹き出される。
In the subsequent temperature control, the heating heat exchanger 12 is controlled according to the speed N as the heating capacity determined based on the temperature difference between the set temperature Tset by the remote controller 4 and the detected room temperature Tr detected by the room temperature thermistor 403. The target hot water temperature TO of the hot water heated and flowing out is determined. For 30 minutes after the start of the duet heating operation, since the floor heating valve 14 is closed, the hot water in the hot water circuit 10 is supplied only to the heating heat exchanger 15 of the indoor unit 2 and the convection fan The warm air is blown into the room by the operation of 200.

【0063】デュエット暖房運転の開始して30分が経
過すると、閉弁されていた床暖熱動弁14が開弁され
て、加熱された温水が床暖房パネル3へも供給され、室
内機2と床暖房パネル3とにより室内が暖房され、その
後も温調運転が継続される。なお、デュエット暖房運転
の運転開始後30分を経過するまでに、室温サーミスタ
403で検知される検知室温Trがリモコン4で設定さ
れた設定温度Tsetより高くなると、上述のホットキー
プ動作に移行し、このホットキープ動作に移行する場合
には、運転開始後30分を経過していなくても床暖熱動
弁14は開弁される。
When 30 minutes have elapsed after the start of the duet heating operation, the floor heating / heating valve 14 which has been closed is opened, and the heated hot water is also supplied to the floor heating panel 3 and the indoor unit 2 And the floor heating panel 3 heats the room, and the temperature control operation is continued thereafter. If the detected room temperature Tr detected by the room temperature thermistor 403 becomes higher than the set temperature Tset set by the remote controller 4 by 30 minutes after the start of the duet heating operation, the process proceeds to the hot keeping operation described above. When shifting to this hot keeping operation, the floor warming valve 14 is opened even if 30 minutes have not elapsed after the start of operation.

【0064】温調制御において、室温サーミスタ403
で検知される検知室温Trのリモコン4で設定された設
定温度Tset に対する温度差が、+1℃以内の間は、室
内機2の対流ファン200が作動して、床暖房パネル3
と室内機2とによるデュエット暖房運転が継続される。
温調制御中に、室温サーミスタ403で検知される検知
室温Trがリモコン4で設定された設定温度Tset より
+1℃以上高くなって、それが3分間続くと、、室内機
2による暖房動作を休止して、床暖房パネル3のみによ
り暖房を行うホットキープ動作に入る。
In the temperature control, the room temperature thermistor 403
While the temperature difference between the detected room temperature Tr and the set temperature Tset set by the remote controller 4 is within + 1 ° C., the convection fan 200 of the indoor unit 2 operates and the floor heating panel 3
And the indoor unit 2 continue the duet heating operation.
During the temperature control, the detected room temperature Tr detected by the room temperature thermistor 403 becomes higher than the set temperature Tset set by the remote controller 4 by + 1 ° C. or more, and if it continues for 3 minutes, the heating operation by the indoor unit 2 is stopped. Then, a hot keeping operation for heating only by the floor heating panel 3 is started.

【0065】ホットキープ動作になった場合には、温水
回路10の加熱用熱交換器12で加熱される温水の目標
湯温TOを、外気温度サーミスタ404で検知される外
気温度Taに基づいて上記表3のとおり決定する。3分
間のホットキープ動作により対流ファン200が停止し
た後には、再び対流ファン200が3分間作動する。こ
の3分間の対流ファン200の作動が終了した時点で、
室温サーミスタ403により室内温度を検知し、この検
知室温Trが設定温度Tset より+1℃以上高い場合に
は、対流ファン200は上述のとおり、再び3分間だけ
停止した後、3分間作動する。
In the case of the hot keeping operation, the target hot water temperature TO of the hot water heated by the heating heat exchanger 12 of the hot water circuit 10 is determined based on the outside air temperature Ta detected by the outside air temperature thermistor 404. Determined as shown in Table 3. After the convection fan 200 is stopped by the hot-keeping operation for three minutes, the convection fan 200 operates again for three minutes. When the operation of the convection fan 200 for three minutes is completed,
The room temperature is detected by the room temperature thermistor 403. When the detected room temperature Tr is higher than the set temperature Tset by + 1 ° C. or more, the convection fan 200 is stopped again for 3 minutes and then operates for 3 minutes as described above.

【0066】逆に、検知室温Trの設定温度Tset 対す
る温度差が+1℃以内の範囲であれば、ホットキープ動
作が終了し、温調動作が再開されて、目標湯温TOが、
設定温度Tset と検知室温Trとの温度差に基づいて決
定される。
On the other hand, if the temperature difference between the detected room temperature Tr and the set temperature Tset is within the range of + 1 ° C., the hot keeping operation is completed, the temperature control operation is restarted, and the target hot water temperature TO is reduced.
It is determined based on the temperature difference between the set temperature Tset and the detected room temperature Tr.

【0067】以上のとおり本発明によれば、デュエット
暖房運転において、運転を開始する際に、外気温度と設
定温度とに基づいて始動制御を行って、外気温度が高く
且つ設定温度が高い場合には、運転初期に供給される温
水の温度を制限するため、高温の温水によって床暖房パ
ネル3の表面温度が異常に高温になることがない。ま
た、こうした暖房負荷の小さい場合に、供給する温水温
度を必要以上の高温に加熱することがないため、無駄な
エネルギー消費を抑えることができる。
As described above, according to the present invention, in the duet heating operation, when the operation is started, the start control is performed based on the outside air temperature and the set temperature, and when the outside air temperature is high and the set temperature is high, Since the temperature of the hot water supplied in the early stage of operation is limited, the surface temperature of the floor heating panel 3 does not become abnormally high due to the high temperature of the hot water. Further, when the heating load is small, the temperature of the supplied hot water is not heated to a higher temperature than necessary, so that unnecessary energy consumption can be suppressed.

【0068】上記実施例では、デュエット暖房運転の開
始初期に、床暖房パネル3へ温水を供給する温水回路1
0の床暖熱動弁14を30分間閉弁するものを示した
が、床暖熱動弁14の閉弁時間は、上記実施例に限定す
るものではなく、また、床暖熱動弁14は半開状態ある
いは開放状態などでもよい。上記実施例では、温調運転
中にホットキープ動作を行うものを示したが、ホットキ
ープ動作を行わないで、室内温度が設定温度より低くな
るまで室内機2及び床暖房パネル3の作動を停止するも
のでもよい。また、室内機2の停止として、上記実施例
では、対流ファンを停止するものを示したが、室内機2
への温水回路10に遮断弁を設けて、温水の供給を停止
するようにしてもよい。この場合には、対流ファンの作
動を低回転数で継続させてもよい。上記実施例では、ガ
スバーナを加熱源としたものを示したが、石油バーナや
電気加熱など、他の加熱源による温水暖房システムでも
よい。
In the above embodiment, at the beginning of the duet heating operation, the hot water circuit 1 for supplying hot water to the floor heating panel 3 is used.
Although the floor heating valve 14 is closed for 30 minutes, the closing time of the floor heating valve 14 is not limited to the above embodiment. May be in a half-open state or an open state. In the above embodiment, the hot keeping operation is performed during the temperature control operation. However, the operation of the indoor unit 2 and the floor heating panel 3 is stopped without performing the hot keeping operation until the indoor temperature becomes lower than the set temperature. You may do it. In the above embodiment, the stop of the indoor unit 2 is described as stopping the convection fan.
A shutoff valve may be provided in the hot water circuit 10 to stop the supply of hot water. In this case, the operation of the convection fan may be continued at a low rotation speed. In the above embodiment, the gas burner is used as the heating source, but a hot water heating system using another heating source such as an oil burner or electric heating may be used.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施例を示す温水暖房式エアコンシス
テムの概略構成図である。
FIG. 1 is a schematic configuration diagram of a hot water heating type air conditioner system showing an embodiment of the present invention.

【図2】本発明の実施例におけるデュエット暖房運転の
始動制御を説明するための流れ図である。
FIG. 2 is a flowchart for explaining start control of a duet heating operation in the embodiment of the present invention.

【図3】本発明の実施例におけるデュエット暖房運転の
温調制御を説明するための流れ図である。
FIG. 3 is a flowchart for explaining temperature control of a duet heating operation in the embodiment of the present invention.

【符号の説明】[Explanation of symbols]

2 室内機(室内暖房機) 3 床暖房パネル 4 リモコン(室温設定器) 10 温水回路(温水循環回路) 11 循環ポンプ 12 加熱用熱交換器 15 暖房用熱交換器 100 ガスバーナ(加熱手段) 200 対流ファン 401 高温水サーミスタ(加熱温度センサ) 403 室温サーミスタ(室温センサ) 404 外気温度サーミスタ(外気温度センサ) 400 制御装置(複合温水暖房システムの温度制御装
置、暖房能力決定手段、目標湯温決定手段、加熱制御手
段)
2 indoor unit (indoor heating unit) 3 floor heating panel 4 remote control (room temperature setting device) 10 hot water circuit (hot water circulation circuit) 11 circulation pump 12 heating heat exchanger 15 heating heat exchanger 100 gas burner (heating means) 200 convection Fan 401 High-temperature water thermistor (heating temperature sensor) 403 Room temperature thermistor (room temperature sensor) 404 Outside air temperature thermistor (outside air temperature sensor) 400 Control device (temperature control device of combined hot water heating system, heating capacity determining means, target hot water determining means, Heating control means)

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 放熱用配管の内部を通過する温水を熱源
とし、前記放熱用配管からの放熱によって室内を暖房す
る床暖房パネルと、 室内空気を循環させる対流ファンを備えた暖房用熱交換
器に温水を通過させて、前記対流ファンの作動により室
内空気を前記暖房用熱交換器によって加熱して室内を暖
房する室内暖房機と、 加熱手段の加熱により内部を通過する水を加熱する加熱
用熱交換器とを具備し、前記床暖房パネルおよび前記室
内暖房機を前記加熱用熱交換器に対して並列に設けて、
前記加熱用熱交換器によって加熱された温水をポンプに
よって前記床暖房パネルおよび前記室内暖房機に循環さ
せる温水循環回路を形成した複合温水暖房システムにお
いて、 室内の目標室温を設定するための室温設定器と、 室内の温度を検知する室温センサと、 外気温度を検知する外気温度センサと、 前記加熱用熱交換器で加熱された温水の温度を検知する
加熱温度センサと、 前記加熱用熱交換器で加熱された温水を前記室内暖房機
および前記床暖房パネルに循環させて室内の暖房を行う
複合暖房運転時の暖房能力を、前記室温設定器による設
定温度と前記室温センサによる検知室温との温度差に応
じて決定する手段であって、前記複合暖房運転開始時の
前記暖房能力を、前記外気温度センサの検知する外気温
度が所定外気温度以下または前記室温設定手段の設定温
度が所定設定温度以下の場合には、最大暖房能力に決定
し、前記外気温度センサの検知する前記外気温度が前記
所定外気温度を越え且つ前記室温設定手段の前記設定温
度が前記所定設定温度を越えている場合には、前記最大
暖房能力より小さく制限された制限暖房能力に決定する
暖房能力決定手段と、 該暖房能力決定手段により決定された前記暖房能力に応
じて前記加熱用熱交換器によって加熱される温水の目標
湯温を決定する目標湯温決定手段と、 該目標湯温決定手段により決定された前記目標湯温と前
記加熱温度センサの検知湯温とに基づいて前記加熱手段
の加熱量を制御する加熱制御手段とを具備することを特
徴とする複合温水暖房システムの温度制御装置。
1. A heating heat exchanger including a floor heating panel for heating a room by heat radiation from the heat-dissipating pipe using hot water passing through the inside of the heat-dissipating pipe, and a convection fan for circulating indoor air. An indoor heater that heats the room by heating the room air by the heating heat exchanger by operating the convection fan and heats the water passing through the inside by heating the heating means. Comprising a heat exchanger, the floor heating panel and the room heater provided in parallel with the heating heat exchanger,
In a combined hot water heating system having a hot water circulation circuit configured to circulate hot water heated by the heating heat exchanger to the floor heating panel and the indoor heater by a pump, a room temperature setter for setting a target indoor room temperature A room temperature sensor that detects an indoor temperature; an outside air temperature sensor that detects an outside air temperature; a heating temperature sensor that detects a temperature of hot water heated by the heating heat exchanger; The heating capacity at the time of the combined heating operation in which the heated hot water is circulated through the room heater and the floor heating panel to heat the room is determined by a temperature difference between the set temperature by the room temperature setter and the room temperature detected by the room temperature sensor. Means for determining the heating capacity at the start of the combined heating operation, the outside air temperature detected by the outside air temperature sensor is less than or equal to a predetermined outside air temperature or When the set temperature of the room temperature setting means is equal to or lower than a predetermined set temperature, the maximum heating capacity is determined, and the outside air temperature detected by the outside air temperature sensor exceeds the predetermined outside air temperature and the set temperature of the room temperature setting means. If the temperature exceeds the predetermined set temperature, heating capacity determining means to determine a limited heating capacity limited to less than the maximum heating capacity, and the heating capacity determined by the heating capacity determining means, Target hot water temperature determining means for determining a target hot water temperature of the hot water heated by the heating heat exchanger; based on the target hot water temperature determined by the target hot water determining means and the detected hot water temperature of the heating temperature sensor. And a heating control means for controlling a heating amount of the heating means.
【請求項2】 前記暖房能力決定手段は、段階的に設定
された複数の暖房能力を有し、前記設定温度と前記検知
室温との温度差範囲に応じた所定周期で室内の温度を検
知する室温検知動作を行い、前記各所定周期の経過後の
前記温度差範囲が前記所定周期を決定したときの前記温
度差範囲と同じであるときには、前記暖房能力を1段だ
け変更し、前記各所定周期の経過後の前記温度差範囲が
前記所定周期を決定したときの前記温度差範囲と異なる
場合には、前記暖房能力の変更を行わず、新たな温度差
範囲に対応した所定周期だけ待機した後に、再び、前記
室温検知動作を行うことを特徴とする請求項1記載の複
合温水暖房システムの温度制御装置。
2. The heating capacity determination means has a plurality of heating capacities set in stages, and detects a room temperature at a predetermined period according to a temperature difference range between the set temperature and the detected room temperature. A room temperature detection operation is performed, and when the temperature difference range after the lapse of each of the predetermined cycles is the same as the temperature difference range when the predetermined cycle is determined, the heating capacity is changed by one step, and If the temperature difference range after the elapse of the cycle is different from the temperature difference range when the predetermined cycle is determined, the heating capacity is not changed, and the process waits for a predetermined cycle corresponding to the new temperature difference range. The temperature control device of the combined hot water heating system according to claim 1, wherein the room temperature detection operation is performed again later.
【請求項3】 前記暖房能力決定手段は、前記暖房能力
を変更する際に、前記検知室温が前記設定温度より高い
場合には、決定されている前記暖房能力を1段だけ下
げ、前記検知室温が前記設定温度より低い場合には、決
定されている前記暖房能力を1段だけ上げることを特徴
とする請求項2記載の複合温水暖房システムの温度制御
装置。
3. The heating capacity determining means, when changing the heating capacity, if the detected room temperature is higher than the set temperature, lowers the determined heating capacity by one step, and The temperature control device of the combined hot water heating system according to claim 2, wherein when the temperature is lower than the set temperature, the determined heating capacity is increased by one stage.
【請求項4】 前記目標湯温決定手段は、前記床暖房パ
ネルの表面温度が所定表面温度以下になるように前記目
標湯温を決定することを特徴とする請求項3記載の複合
温水暖房システムの温度制御装置。
4. The combined hot water heating system according to claim 3, wherein said target hot water temperature determining means determines said target hot water temperature such that a surface temperature of said floor heating panel is equal to or lower than a predetermined surface temperature. Temperature control device.
JP06152597A 1997-03-14 1997-03-14 Temperature controller for combined hot water heating system Expired - Fee Related JP3703596B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP06152597A JP3703596B2 (en) 1997-03-14 1997-03-14 Temperature controller for combined hot water heating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06152597A JP3703596B2 (en) 1997-03-14 1997-03-14 Temperature controller for combined hot water heating system

Publications (2)

Publication Number Publication Date
JPH10253079A true JPH10253079A (en) 1998-09-25
JP3703596B2 JP3703596B2 (en) 2005-10-05

Family

ID=13173613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP06152597A Expired - Fee Related JP3703596B2 (en) 1997-03-14 1997-03-14 Temperature controller for combined hot water heating system

Country Status (1)

Country Link
JP (1) JP3703596B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015183900A (en) * 2014-03-24 2015-10-22 株式会社富士通ゼネラル Heat pump type heating hot water supply device
JP2015183937A (en) * 2014-03-25 2015-10-22 株式会社富士通ゼネラル Heat pump type heating hot water supply device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015183900A (en) * 2014-03-24 2015-10-22 株式会社富士通ゼネラル Heat pump type heating hot water supply device
JP2015183937A (en) * 2014-03-25 2015-10-22 株式会社富士通ゼネラル Heat pump type heating hot water supply device

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