JPS6160332B2 - - Google Patents
Info
- Publication number
- JPS6160332B2 JPS6160332B2 JP56121255A JP12125581A JPS6160332B2 JP S6160332 B2 JPS6160332 B2 JP S6160332B2 JP 56121255 A JP56121255 A JP 56121255A JP 12125581 A JP12125581 A JP 12125581A JP S6160332 B2 JPS6160332 B2 JP S6160332B2
- Authority
- JP
- Japan
- Prior art keywords
- point
- defrosting
- indoor temperature
- temperature
- heating operation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010257 thawing Methods 0.000 claims description 57
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 3
- 206010013082 Discomfort Diseases 0.000 description 1
- 206010016334 Feeling hot Diseases 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/48—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring prior to normal operation, e.g. pre-heating or pre-cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
Description
【発明の詳細な説明】
本発明は空気調和機の制御方法に関し、ヒート
ポンプ運転における除霜時の室内温度の低下を軽
減し、ヒートポンプ運転の温暖感の改善を行うも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control method for an air conditioner, which reduces the decrease in indoor temperature during defrosting in heat pump operation, and improves the feeling of warmth in heat pump operation.
従来、空気調和機のヒートポンプ運転における
除霜運転の条件として、
室外熱交換器の温度低下の感知（約−2.5〜
５℃）
前回の除霜時からの一定時間の経過
等、の条件が充足されると、除霜運転を開始
していた。この場合の室内温度と、除霜サーモス
タツト、除霜タイマ、圧縮機、補助ヒータ、室内
フアンモータ及び室外フアンモータの動作タイミ
ングとの関係は、第１図に示す通りである。 Conventionally, as a condition for defrosting operation in the heat pump operation of an air conditioner, detection of a temperature drop in the outdoor heat exchanger (approximately -2.5 to
5°C) Defrosting operation was started when the following conditions were satisfied, such as a certain period of time elapsed since the previous defrosting. In this case, the relationship between the indoor temperature and the operation timings of the defrosting thermostat, defrosting timer, compressor, auxiliary heater, indoor fan motor, and outdoor fan motor is as shown in FIG.
しかし、このような条件のみでは、除霜中に室
内温度が著しく低下し、暖房による温暖感が大き
く損なわれることがあり、これがヒートポンプ運
転の大きな欠点となつていた。即ち、従来方法で
は、除霜条件さえ充足すれば何時でも除霜運転に
入るため、第２図に示すように室内温度が低下し
て室内温度設定サーモスタツトのOFF点からON
点に向う場合でも、除霜運転に切換わることがあ
る。このため最悪の場合には、室内温度がON点
近くまで低下した時点と除霜開始時点T1とが一
致することがあり、特に外気温度が室外熱交換器
の温度低下の感知温度以下に低下した場合は、除
霜タイマのみで除霜タイミングが決定される。従
つて室外温度の低下が著しい場合には、除霜完了
時点T2までにON点から温度がｑだけ低下するた
め、実際の室内温度は室内温度設定値から大幅に
Ｑも低下することになるので、除霜中に暖房感が
著しく低下すると云う欠点があつた。 However, under these conditions alone, the indoor temperature may drop significantly during defrosting, and the sense of warmth caused by heating may be significantly impaired, which has been a major drawback of heat pump operation. In other words, in the conventional method, defrosting operation is started at any time as long as the defrosting conditions are met, so as shown in Figure 2, when the indoor temperature drops, the indoor temperature setting thermostat is turned on from the OFF point.
The defrosting operation may be activated even when the vehicle is heading toward a point. Therefore, in the worst case, the time when the indoor temperature drops close to the ON point may coincide with the defrosting start time T1 , and especially when the outside air temperature drops below the sensing temperature of the outdoor heat exchanger. In this case, the defrost timing is determined only by the defrost timer. Therefore, if the outdoor temperature drops significantly, the temperature will drop by q from the ON point by the time T2 when defrosting is completed, so the actual indoor temperature will drop significantly by Q from the indoor temperature set value. Therefore, there was a drawback that the feeling of heating was significantly reduced during defrosting.
本発明は、このような従来の問題点に鑑み、例
えば、上記の条件が充足した場合、室内温度
設定サーモスタツトのOFF点を高く自動補正す
るか、または補助ヒータを強制的に投入して除霜
のためのヒータ予熱を開始すると共に、通常の暖
房運転時の室温設定サーモスタツトのOFF点よ
り室内温度を上昇させて過熱し、除霜中の室内温
度の低下による暖房感の低下を緩和させるもので
ある。 In view of these conventional problems, the present invention, for example, automatically corrects the OFF point of the room temperature setting thermostat to a higher value when the above conditions are satisfied, or forcibly turns on the auxiliary heater to remove the thermostat. In addition to starting heater preheating for frost, the room temperature is raised above the OFF point of the room temperature setting thermostat during normal heating operation to overheat and alleviate the decrease in heating feeling due to the drop in indoor temperature during defrosting. It is something.
前記補助ヒータは、第１図に示すように、一般
に暖房運転の始動立上りの際に能力アツプのため
投入し、室内温度設定サーモスタツトのON点の
少し下（約1.5℃）の点でOFFとし、その後はヒ
ートポンプ運転のみによる暖房運転に切り換わ
る。そのため設定温度に到達後は、ヒートポンプ
サイクル運転にてON−OFFのハンチング運転を
行う。なお、この補助ヒータは外気温により
ON、OFFの選択を行うように制御され、一般に
外気温が低い（７℃付近）場合であれば上記の運
転を行い、外気温がそれ以上であれば、立上り当
初より補助ヒータなしの運転となり、効率の高い
ヒートポンプサイクルのみの運転となる。またこ
の補助ヒータの運転には、外気温に関係なく、運
転立上り当初から投入通電可能なようにヒータ入
切用の選択スイツチが設けられるのが普通であ
る。しかし、いづれにしても設定温度−1.5℃付
近からは、ヒートポンプサイクル運転のみとな
る。補助ヒータは上記のごとく制御されるから、
室内温度設定サーモスタツトのハンチング運転に
おいては、常にOFFの状態にある。ゆえに暖房
運転から除霜運転に切り換つた時には、補助ヒー
タはOFFのため、予熱がなされておらず、ヒー
タ通電にて放熱まで約２〜３分間を要するため、
除霜運転の立ち上り時に冷風吹出（コールドドラ
フト）の問題や、除霜に長時間要することによる
室温低下の増大等、種々の不快感を引き起してい
た。 As shown in Figure 1, the auxiliary heater is generally turned on to increase capacity at the start of heating operation, and turned off at a point slightly below the ON point (approximately 1.5°C) of the room temperature setting thermostat. After that, the heating operation is switched to only the heat pump operation. Therefore, after reaching the set temperature, ON-OFF hunting operation is performed in the heat pump cycle operation. Please note that this auxiliary heater may vary depending on the outside temperature.
It is controlled to select between ON and OFF, and if the outside temperature is low (around 7℃), the above operation will be performed, and if the outside temperature is higher than that, the operation will start without the auxiliary heater from the beginning of startup. , only the highly efficient heat pump cycle is operated. Further, when operating this auxiliary heater, a selection switch for turning the heater on and off is normally provided so that it can be turned on and energized from the start of operation, regardless of the outside temperature. However, in any case, from around -1.5°C at the set temperature, only heat pump cycle operation is possible. Since the auxiliary heater is controlled as described above,
During hunting operation of the room temperature setting thermostat, it is always in the OFF state. Therefore, when switching from heating operation to defrosting operation, the auxiliary heater is OFF, so preheating is not done, and it takes about 2 to 3 minutes for the heat to dissipate when the heater is energized.
This has caused various discomforts, such as the problem of cold air being blown out at the start of defrosting operation (cold draft) and the increased drop in room temperature due to the long time required for defrosting.
次に本発明制御方法の一実施例を第３図及び第
４図を参照しながら説明すると、室内温度設定サ
ーモスタツトによるハンチング運転での暖房運転
後、一定時間の経過より前記の除霜条件がＨ
点以下の温度d1の範囲内で充足した場合、その時
点で既述の補助ヒータの投入制御に関係なく強制
的に通電し、予熱を開始する。一方、この補助ヒ
ータの通電後も、ヒートポンプのサイクル運転に
より室温は上昇するが、この間、補助ヒータは冷
却状態から除々に温度上昇を始める。しかる状態
にて一定時間だけ暖房運転を続行することによ
り、室内温度設定サーモスタツトがOFF点に至
るが、本発明においては、除霜開始条件充足後
は、さらに室内温度の予備過熱（Ａ℃）を行い、
除霜中の室内温度の低下の緩和に備える。この予
備過熱運転中に補助ヒータは充分熱くなり、除霜
開始後、直ちにその放熱を利用し得る状態とな
る。しかる状態が達成された後に、A′点すなわ
ち室内温度設定サーモスタツトのOFF点より高
い設定温度にて除霜開始となる。ゆえにＨ点の決
定される上限は、補助ヒータの予熱完了にて除霜
開始が可能となるように、室内温度設定サーモス
タツトのデイフアレンシヤルｄのON点からOFF
点に向かう中間点で温度的（または時間的）に制
御決定される。このＨを過ぎての除霜条件が
充足された場合には、補助ヒータの予熱時間が確
保されていないため、除霜は見送られ、次の除霜
運転開始と同時に補助ヒータに通電となり、室温
予備過熱（プレヒートアツプ）A′点に到達後、
補助ヒータ予熱完了状態にて直ちに除霜運転に切
り換わる。 Next, an embodiment of the control method of the present invention will be explained with reference to FIGS. 3 and 4. After a heating operation in hunting operation using the indoor temperature setting thermostat, the defrosting conditions described above are changed after a certain period of time has elapsed. H
When the temperature is satisfied within the range of temperature d 1 below the point, at that point, power is forcibly applied regardless of the above-mentioned auxiliary heater turn-on control, and preheating is started. On the other hand, even after the auxiliary heater is energized, the room temperature rises due to the cycle operation of the heat pump, but during this time the temperature of the auxiliary heater gradually begins to rise from the cooling state. By continuing the heating operation for a certain period of time under such conditions, the indoor temperature setting thermostat reaches the OFF point, but in the present invention, after the defrosting start conditions are met, the indoor temperature is further preheated (A°C). and
Prepare for the reduction in indoor temperature during defrosting. During this preheating operation, the auxiliary heater becomes sufficiently hot, and its heat radiation can be used immediately after defrosting starts. After this condition is achieved, defrosting begins at point A', that is, at a set temperature higher than the OFF point of the indoor temperature setting thermostat. Therefore, the upper limit for determining the H point is set from the ON point of the differential d of the room temperature setting thermostat to the OFF point so that defrosting can be started when the auxiliary heater has completed preheating.
Temperature (or time) control decisions are made at intermediate points towards the point. If the defrosting conditions are met after H, the preheating time for the auxiliary heater is not secured, so defrosting will be postponed, and the auxiliary heater will be energized at the same time as the next defrosting operation starts, and the temperature will rise to room temperature. After reaching the preheating point A′,
Immediately switches to defrosting operation when auxiliary heater preheating is completed.
なお、この補助ヒータ投入の時点は、除霜条件
の感知された点がＨ点の以前、以後にかかわ
らず（A′点到達後、即ち除霜開始又は除霜見送
りにかかわらず）、Ｈ点より開始することも可能
である。もし、除霜条件の条件充足が、室内
温度設定サーモスタツトのOFF点からON点に向
かう中間にてなされた場合にも、暖房開始後、直
ちに上記除霜運転に基づいて同じ制御が行なわれ
ることは論を待たない。 Note that the point at which this auxiliary heater is turned on is regardless of whether the point at which the defrosting condition is detected is before or after point H (after reaching point A', that is, regardless of whether defrosting is started or defrosting is postponed). It is also possible to start from Even if the defrosting conditions are met midway from the OFF point to the ON point of the indoor temperature setting thermostat, the same control based on the above defrosting operation will be performed immediately after heating starts. is beyond debate.
また空気調和機の制御方法において、室内の希
望設定温度や外気温度に応じて除霜開始時及び除
霜終了時の室内温度を設定するならば、更に快適
な温度での除霜が可能である。即ち、上記の
除霜条件の充足後、第５図に示すように室内温度
設定サーモスタツトのOFF点より補正値a′だけ
室内温度設定値のOFF点を自動的に補正して引
き上げ、除霜終了時の室内温度の低下を最小限度
に抑え、温暖感の低下を極力防ぐことができる。
またこの制御に室内設定温度と室外温度との条件
を付加することもできる。第５図において、
ａ＋ｂ＝ｑ：（除霜中の室温低下）
a′：（除霜開始時の室内温度設定サーモスタツト
のOFF点よりの温度引き上げ補正値）
b′：（除霜終了時の室内温度設定サーモスタツト
のON点の補正値）
であり、a′は室内温度設定値及び室外温度の高低
に応じてマイクロコンピユータ回路等で最適値に
設定される。即ち、室内温度設定値が高い場合に
はa′が小さく、また室内温度設定値が低い場合に
はa′が大きくなるように夫々自動的に設定され
る。 In addition, in the control method of the air conditioner, if the indoor temperature at the start and end of defrosting is set according to the desired indoor temperature setting and the outside air temperature, defrosting can be performed at a more comfortable temperature. . That is, after the above defrosting conditions are satisfied, the OFF point of the indoor temperature setting value is automatically corrected and raised by a correction value a' from the OFF point of the indoor temperature setting thermostat, as shown in Figure 5, and the defrosting is started. It is possible to minimize the drop in room temperature at the end of the session, and prevent a drop in the sense of warmth as much as possible.
Further, conditions regarding indoor temperature setting and outdoor temperature can also be added to this control. In Figure 5, a+b=q: (room temperature drop during defrosting) a': (temperature increase correction value from the OFF point of the indoor temperature setting thermostat at the start of defrosting) b': (at the end of defrosting) (correction value for the ON point of the indoor temperature setting thermostat), and a' is set to the optimum value by a microcomputer circuit, etc. according to the indoor temperature setting value and the height of the outdoor temperature. That is, when the indoor temperature set value is high, a' is automatically set to be small, and when the indoor temperature set value is low, a' is automatically set to be large.
一方、室外温度と室内温度設定値との差による
室内からの熱漏洩値の変化により上記a′の値を補
正する。これは、温度差が大きい場合は、除霜中
の室内温度の低下が大きくなるため、a′を大きく
する方に補正する。 On the other hand, the value of a' is corrected based on the change in the value of heat leakage from the room due to the difference between the outdoor temperature and the indoor temperature set value. This is because when the temperature difference is large, the decrease in indoor temperature during defrosting becomes large, so a' is corrected to be larger.
従つて、以上のように構成される回路では、室
内温度設定値が低く、且つこれと室外温度との差
が大きい場合には、第６図に示すようにa′が
max、b′がmin（０でもよい）となり、また室内
温度設定値が高く、且つこれと室外温度との差が
小さい場合には、第７図に示すようにa′がmin、
b′がmaxとなる。これらa′及びb′は体感温度、快
感度等から実験的に決定される。要はa′が大きく
なり過ぎることによる不快感や、b′の低下による
不快感を防ぐため、希望設定温度や外気温度に最
も適するように、除霜開始時及び除霜終了時の室
内温度条件を自動的に設定し、それに従つて制御
するのである。 Therefore, in the circuit configured as described above, when the indoor temperature set value is low and the difference between this and the outdoor temperature is large, a' becomes as shown in Figure 6.
If max and b' become min (or 0), and the indoor temperature setting is high and the difference between this and the outdoor temperature is small, a' becomes min, as shown in Figure 7.
b' becomes max. These a' and b' are experimentally determined from sensible temperature, comfort level, etc. In short, in order to prevent discomfort caused by a' becoming too large or discomfort caused by a drop in b', the indoor temperature conditions at the start and end of defrosting are adjusted to best suit the desired set temperature and outside temperature. is automatically set and controlled accordingly.
以上実施例で説明したように、本発明によれ
ば、除霜条件を充足した時に、室内温度設定サー
モスタツトのOFF点を通常の暖房運転時のOFF
点よりも高い設定値に補正し、この補正した
OFF点まで暖房運転を継続し、室内温度を上昇
させた後に除霜を開始するので、従来のヒートポ
ンプサイクルのまま、サーモスタツトの制御の改
善のみで除霜中の室温低下による暖房感の低下を
緩和することができる。 As explained in the embodiments above, according to the present invention, when the defrosting conditions are satisfied, the OFF point of the indoor temperature setting thermostat is set to OFF during normal heating operation.
The corrected value is set higher than the
Heating operation continues until the OFF point, and defrosting is started after the indoor temperature has risen. Therefore, while maintaining the conventional heat pump cycle, the reduction in the feeling of heating due to the drop in room temperature during defrosting can be avoided by simply improving the thermostat control. It can be relaxed.
また、本発明では、室内温度設定サーモスタツ
トのOFF点の補正値を、室内温度設定値の高低
及び（または）室内温度設定値と室外温度との差
の大小に応じて決定するので、除霜中の室内温度
を最も適切な条件に制御できる。 Furthermore, in the present invention, the correction value of the OFF point of the indoor temperature setting thermostat is determined depending on the height of the indoor temperature setting value and/or the magnitude of the difference between the indoor temperature setting value and the outdoor temperature. The indoor temperature inside can be controlled to the most appropriate conditions.
更にまた本発明によると、除霜条件を充足した
時、室内温度設定サーモスタツトのON点から
OFF点に向かう中間の所定点以内に、補助ヒー
タを強制投入してヒータ加熱を開始し、通常の暖
房運転時の室内温度設定サーモスタツトのOFF
点より高い設定温度まで暖房運転を継続した後に
除霜を開始し、暖房運転時の室内温度設定サーモ
スタツトのOFF点より室温を上昇させて過熱す
るので、従来のヒートポンプサイクルのまま、補
助ヒータの制御の改善のみで除霜中の室温低下に
よる暖房感の低下を緩和することができる。 Furthermore, according to the present invention, when the defrosting conditions are satisfied, from the ON point of the room temperature setting thermostat
Within a predetermined point halfway toward the OFF point, the auxiliary heater is forcibly turned on and heater heating starts, turning off the room temperature setting thermostat during normal heating operation.
Defrosting is started after heating operation continues until the set temperature is higher than the set temperature, and the room temperature rises above the OFF point of the room temperature setting thermostat during heating operation, causing overheating. Improving the control alone can alleviate the decrease in the feeling of heating due to a decrease in room temperature during defrosting.
第１図及び第２図は従来の制御方法を示す図、
第３図及び第４図は本発明制御方法の一実施例を
示す図、第５図ないし第７図は本発明制御方法の
他の実施例を示す図である。
Ａ：室温予備過熱温度、A′：除霜開始点、a′：
室内温度設定値のOFF点の補正値、b′：室内温
度設定値のON点の補正値、T1：除霜開始時点、
T2：除霜完了時点、ｑ：除霜中の室温低下温
度。
Figures 1 and 2 are diagrams showing conventional control methods;
3 and 4 are diagrams showing one embodiment of the control method of the present invention, and FIGS. 5 to 7 are diagrams showing other embodiments of the control method of the present invention. A: Room temperature preliminary superheating temperature, A′: Defrosting start point, a′:
Correction value of the OFF point of the indoor temperature set value, b′: Correction value of the ON point of the indoor temperature set value, T 1 : Defrosting start point,
T 2 : Time of completion of defrosting, q : Decrease in room temperature during defrosting.
Claims (1)
モスタツトのOFF点を通常の暖房運転時のOFF
点よりも高い設定値に補正し、この補正した
OFF点まで暖房運転を継続した後に除霜を開始
することを特徴とする空気調和機の制御方法。 ２ 除霜条件を充足した時に、室内温度設定サー
モスタツトのOFF点を通常の暖房運転時のOFF
点よりも高い設定値に補正し、この補正した
OFF点まで暖房運転を継続した後に除霜を開始
すると共に、前記室内温度設定サーモスタツトの
OFF点の補正値を、室内温度設定値の高低及び
（または）室内温度設定値と室外温度との差の大
小に応じて決定することを特徴とする空気調和機
の制御方法。 ３ 除霜条件を充足した時、室内温度設定サーモ
スタツトのON点からOFF点に向かう中間の所定
点以内に、補助ヒータを強制投入してヒータ加熱
を開始し、通常の暖房運転時の室内温度設定サー
モスタツトのOFF点より高い設定温度まで暖房
運転を継続した後に除霜を開始することを特徴と
する空気調和機の制御方法。[Claims] 1. When the defrosting conditions are satisfied, the OFF point of the indoor temperature setting thermostat is set to OFF during normal heating operation.
The corrected value is set higher than the
A method for controlling an air conditioner, characterized in that defrosting is started after heating operation continues until the OFF point. 2 When the defrosting conditions are met, set the OFF point of the indoor temperature setting thermostat to the OFF point during normal heating operation.
The corrected value is set higher than the
After heating operation continues until the OFF point, defrosting begins and the indoor temperature setting thermostat is turned off.
A method for controlling an air conditioner, characterized in that a correction value for an OFF point is determined depending on the height of an indoor temperature set value and/or the magnitude of a difference between an indoor temperature set value and an outdoor temperature. 3 When the defrosting conditions are met, the auxiliary heater is forcibly turned on and heater heating starts within a predetermined point between the ON point and the OFF point of the indoor temperature setting thermostat, and the indoor temperature during normal heating operation is maintained. A method for controlling an air conditioner, characterized by starting defrosting after continuing heating operation to a set temperature higher than the OFF point of a set thermostat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56121255A JPS5822831A (en) | 1981-07-31 | 1981-07-31 | Method of controlling air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56121255A JPS5822831A (en) | 1981-07-31 | 1981-07-31 | Method of controlling air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5822831A JPS5822831A (en) | 1983-02-10 |
| JPS6160332B2 true JPS6160332B2 (en) | 1986-12-20 |
Family
ID=14806725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56121255A Granted JPS5822831A (en) | 1981-07-31 | 1981-07-31 | Method of controlling air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5822831A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776549B (en) * | 2014-01-13 | 2018-03-27 | 广东美的制冷设备有限公司 | Air conditioner defrosting control method and defrosting device |
| CN110260466B (en) * | 2019-06-13 | 2021-01-05 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method and device |
-
1981
- 1981-07-31 JP JP56121255A patent/JPS5822831A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5822831A (en) | 1983-02-10 |
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