JPH0886487A - Operating method of air conditioner - Google Patents

Abstract

(57) [Summary] [Construction] In an air conditioner consisting of a remote control switch, an indoor unit, and an outdoor unit, the operation command from the start / stop switch 13 or input means is a parameter high temperature switch 4, a low temperature switch 5, and an air volume strong switch 6 When a parameter command is input from the air volume weak switch 7, the operation mode etc. is determined by the remote controller switch, the indoor unit, or the outdoor unit microcomputer, and the blower, expansion valve, compressor, etc. provided in the indoor unit are automatically operated. Control. If the microcomputer determines that the compressor is switched on and off frequently, the expansion valve is closed to suppress the switching frequency. If the sensor determines that the current consumption is high, the opening degree of the expansion valve is changed to reduce the current consumption. [Effect] The automatic recognition judgment operation that sets only the operation command at the start of operation and the favorite command during operation eliminates the need for complicated operations and reduces the frequency and consumption of compressor on / off switching. The current is suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for operating an air conditioner, and more particularly to a method for changing an operation mode associated with automatic operation.

[0002]

2. Description of the Related Art Conventionally, as a method for setting parameters such as an operation mode in operation of an air conditioner, a method in which all users decide when the air conditioner is operating, or a method in which it is automatically decided according to an algorithm set at the time of factory shipment is used It was being done. And, in such an automatic operation, when shifting from the cooling mode to the heating mode, a control method for preventing a large change in room temperature is described in JP-A-6-147591 and JP-A-6-147591. ing. ◆ In order to protect the compressor, the number of times the compressor is switched on and off while the air conditioner is operating is suppressed, and a guard timer is used to prevent the reverse operation for a certain period after turning on or off. Further, in order to reduce current consumption, a demand control method is used in which the current flowing through the compressor is monitored and the compressor is automatically stopped when the current value exceeds a predetermined value.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned prior art section, there is the trouble that the user must determine all the parameters when operating the air conditioner, and only the automatic mode is available. On the contrary, in the case of, there is a problem that the parameter that the user attaches importance to cannot be determined.
Further, JP-A-6-147591 and JP-A-6-6-1
Japanese Patent No. 47591 discloses that the discomfort of the user due to a large change in room temperature is reduced, but the simple parameter setting according to the user's preference is not considered. In addition, the method of using the guard timer to reduce the frequency of switching the compressor on and off cannot follow changes in the air conditioning load during the guard time, which causes the user to feel uncomfortable. ◆ Furthermore, if the demand control method is used to reduce current consumption,
If the air conditioning load changes while the compressor is being stopped, the compressor is still in a stopped state, so that it cannot follow the air conditioning load change, which causes the user to feel uncomfortable.

A first object of the present invention is to provide an operation method for operating an air conditioner by a simple operation, in which the user only has to issue an operation command when operating the air conditioner. Further, it is to provide a driving method in which an environment satisfying the user can be obtained by instructing only the user's preference after driving. A second object of the present invention is to suppress the frequency of switching the compressor on and off and improve the reliability of the compressor. Furthermore, a third object of the present invention is to provide an air conditioner that secures the followability of control of the air conditioner even if the air conditioning load changes, and reduces the current consumption.

[0005]

In order to achieve the above object, an outdoor unit and at least one indoor unit connected by piping to the outdoor unit are provided, and the outdoor unit, the indoor units, and In an operating method of an air conditioner including a remote control switch connected to at least one of the indoor units, the air conditioner is operated according to a predetermined operation mode based on a start / stop input from the remote control switch, and thereafter. When there is an input according to taste, this operation mode is automatically corrected and the object is operated and stored. ◆ Preferably, the input according to the preference is at least one of increasing the set temperature, lowering the set temperature, increasing the set air volume (or strong), and decreasing the set air volume (or weak). It is one.

Further, preferably, each of the outdoor unit, the indoor unit and the remote control switch has a transmission means and a microcomputer, the microcomputer of the remote control switch judges the input at the remote control switch, and the judgment result is the transmission means of the remote control switch. To the transmission means of the indoor unit via
The microcomputer of the indoor unit controls at least one of the indoor blower and the expansion valve based on the input information received by the transmission means of the indoor unit.

Preferably, the outdoor unit has a compressor, and the outdoor unit is provided with an on / off counting means for counting the number of times the compressor is turned on and off, and the number of times the compressor is turned on and off counted by the on and off counting means is counted. If the frequency is higher than a predetermined value, the operation of the compressor is disregarded even if it is in the condition of the compressor stop condition, the air conditioning capacity is lowered, and the fluctuation of the room temperature is suppressed. ◆ More preferably, the outdoor unit has a compressor, and the air conditioner is provided with a current detecting means for measuring a consumption current of at least one of the compressor and the air conditioner, and the current value detected by the current detecting means is When the predetermined value is reached, the opening of the expansion valve provided in the indoor unit is increased to reduce the pressure inside the air conditioner.

Further, in the operating method of the air conditioner, which has an outdoor unit and at least one indoor unit connected to the outdoor unit by piping, and the outdoor unit and each indoor unit are connected by a transmission line, At least one of the outdoor unit and each indoor unit is provided with input means, and the air conditioner is operated in accordance with an operation mode determined in advance based on the input from this input means, and if there is an input according to preference, this operation mode is set. Is automatically corrected for operation and storage. ◆ Preferably, the input according to the preference is at least one of increasing the set temperature, lowering the set temperature, increasing the set air volume (or strong), and decreasing the set air volume (or weak). It is one.

Further, in an operating method of an air conditioner having an air conditioner having an indoor unit and an outdoor unit each having a transmission means, and a remote control switch having a transmission means provided for information communication in the air conditioner. , The remote control switch is provided with input / output means for starting / stopping the air conditioner and display means for operating status, and the microcomputer provided in the air conditioner is automatically operated based on the operation command given to the air conditioner from the input / output means for starting / stopping. The operation mode, temperature and air volume are determined from the suction temperature to control the operation of the air conditioner. ◆ Preferably, the remote control switch is provided with a relative setting change means from the current operating state, and a relative setting change command from the relative setting change means is transmitted to the air conditioner via the transmission means, and the relative setting change command is transmitted. The microcomputer automatically corrects the operation mode, temperature, and air volume based on the dynamic setting change command.

That is, according to the present invention, a remote control switch, a parameter input device, and a microcomputer for controlling them are used to recognize a driving command and an input parameter from a user,
The control parameters for obtaining a comfortable environment are determined. Further, the on / off counter device such as the compressor, the consumption current measuring device and the microcomputer for controlling them are used to recognize the on / off frequency and the consumption current of the compressor, and the control parameters capable of suppressing the on / off frequency and reducing the consumption current are determined. To do.

[0011]

The remote control switch is provided with a starting / stopping means, a parameter inputting means, a communication device for transmitting the information inputted from these inputting means to other equipment, and a microcomputer for controlling them. Then, when the user inputs an operation command to the air conditioner from the start / stop means, the air conditioner starts operation according to the standard operation algorithm at the time of factory shipment or the operation algorithm previously set by the user. When the user is instructed to input a "favorite" switch that desires a relative change from the current state, the microcomputer of the air conditioner automatically corrects and stores parameters other than the input command in the current algorithm. As a result, the user's preference is retained until the next operation, and the user only has to make a qualitative judgment that the set temperature is high, low, and the air volume is large (or strong) and small (or weak). Well, reduce the burden of setting the air conditioning environment for the user. Since the remote control switch has a display means for displaying functions and related items, the set air conditioning state can be confirmed even immediately after the operation and before the stable state. In the case of remote controlless, the parameter input device is installed in the indoor unit or the outdoor unit,
This parameter input device includes switches and contacts, and a microcomputer that controls them. The user's preference input from this input device is reflected in the operation of the air conditioner in the same manner as described above, and the burden of setting the air conditioning environment on the user is reduced.

Further, the air conditioner is provided with an on / off counter for counting on / off of the compressor, and counts the number of on / offs of the compressor per unit time or the cumulative number of on / offs. When the frequency of on / off or the cumulative number of times exceeds a predetermined number, the expansion valve opening degree is controlled without stopping the compressor even if the compressor enters a stop condition. Furthermore, the microcomputer in the air conditioner compares the output of the compressor provided in the air conditioner or the consumption current detection means of the air conditioner with a set value, and when the set value is exceeded, the expansion valve opening degree is controlled without stopping the compressor. . As a result, it is possible to reduce both the on / off frequency of the compressor and the current consumption. It should be noted that the automatic operation parameter setting, compressor on / off, and current consumption determination are all controlled by the microcomputer, and there is only one microcomputer connected to each device, and information is transmitted only between the microcomputers. Therefore, malfunction due to transmission can be reduced.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a basic system to which the present invention is applied. An indoor unit 2 is connected to each of the plurality of outdoor units 3, and a remote control switch 1 is connected to some of the indoor units by a transmission line. The remote control switch 1 is a means for the user to give an instruction to the air conditioner, and the indoor unit 2 has a built-in means for performing appropriate control according to the instruction from the user. Further, the outdoor unit 3 has a built-in means for performing appropriate control in response to an instruction from the user, like the indoor unit 2. It should be noted that one or a plurality of indoor units are connected to each outdoor unit by piping, and as a general rule, a transmission line is connected between the connected outdoor unit and the indoor unit.

Next, details of the remote control switch 1, the indoor unit 2 and the outdoor unit 3 will be described with reference to FIGS. 2 to 4. FIG. 2 shows a control block of the remote control switch 1. The remote control switch 1 includes a start / stop switch 13 for operating or stopping the air conditioner, a high switch 4 for increasing the set temperature as a favorite switch indicating the preference of the user, a low switch 5 for decreasing the set temperature, There is a strong switch 6 for increasing the set air volume (or strong) and a weak switch 7 for setting the small air volume (or weak), and all the operation information is input to the microcomputer 8. The microcomputer 8 recognizes the contents of the operation information, and transmits the indoor unit 2 via the transmission means 9.
Communicate that information to.

FIG. 3 shows a control block of the indoor unit 2. The information transmitted from the remote controller switch 1 or the outdoor unit 3 to the indoor unit 2 is transmitted to the indoor unit microcomputer 8 via the transmission means 9. The microcomputer 8 of the indoor unit controls the rotation speed of the indoor blower 10 and the opening degree of the electronic expansion valve 11 based on the transmitted information. At that time, the temperature, pressure, etc. of each part detected by the sensor 12 arranged in each part of the air conditioner are used as input information as the determination material. When controlling a device such as the compressor 15 built in the outdoor unit 3, information is transmitted to the outdoor unit 3 via the transmission unit 9.

FIG. 4 shows a control block of the outdoor unit 3. The information transmitted from the remote controller switch 1 or the indoor unit 2 to the outdoor unit 3 is transmitted to the outdoor unit microcomputer 8 via the transmission means 9. The microcomputer 8 of the outdoor unit, based on the information transmitted from the remote control switch 1 or the indoor unit 2 to the outdoor unit 3, the timing of turning on or off the compressor 15, the rotation speed, the flow rate of the refrigerant in the heat exchanger 14, the outdoor blower. Control the rotation speed of.
Then, the temperature, pressure, etc. of each part of the air conditioner detected by the sensor 12 are used as the judgment material in the control. In addition, when controlling the device built in the indoor unit 2 such as the blower 10,
Information is transmitted to the indoor unit 2 via the transmission means 9.

Next, a method of operating the basic system of the present invention thus constructed will be described. When the user operates the air conditioner, the start / stop switch 13 of the remote control switch 1 is used.
Give a driving command from. At this time, it is displayed on the remote control switch that the start / stop switch 13 has been input.
This operation command is transmitted to the indoor unit 2 and the outdoor unit 3,
The automatic recognition determination operation is started. Needless to say, the user may arbitrarily select the switch input together with the operation command. The automatic recognition determination operation determines the operation mode, the set temperature, and the set air volume according to an algorithm that is previously determined at the time of factory shipment. A flow chart of this automatic recognition determination operation is shown in FIG.

When an operation command is given, the information is transmitted from the remote controller switch 1 to the indoor unit 2. The suction temperature information detected by the sensor 12 is input to the indoor unit 2, and the operation mode is determined by the microcomputer 8 of the indoor unit. In FIG. 5, the suction temperature of 25 ° C. is set as a set value of the operating condition, and if the suction temperature is 25 ° C. or higher, it is cooling, and if it is less than 25 ° C., it is heating.
However, this setting value can include a margin such as a setting error, and the value itself can be freely changed.
When the operation mode is determined, the microcomputer 8 then compares the set temperature corresponding to the operation mode with the suction temperature, and the difference is 5
If it is above ℃, it will be a breeze, if it is above 3 ℃, it will be a strong wind, and if it is below 3 ℃, it will be a weak wind. This judgment value can be changed as in the above. When the operation mode, the set temperature and the set air volume are determined, the operation control is started. However, in order to prevent the cold air from being blown out immediately after the start of the operation in the heating mode,
The hot start function, that is, the function of not operating the blower or making the wind weak until hot air blows, is activated.
Normally, the equipment provided in the indoor unit and the outdoor unit is controlled so as to satisfy the target determined by the above procedure. However, if the goal or current situation is not satisfactory to the user, it can be corrected. FIG. 6 shows a flowchart of the correction method.

Remote control switch 1 even during normal operation
The microcomputer 8 therein constantly monitors the presence / absence of switch inputs of the high switch 4, the low switch 5, the strong switch 6, and the weak switch 7. When any one of them is input, the switch input is transmitted via the transmission means 9. Are transmitted to the indoor unit 2 and the outdoor unit 3. At this time, the input state of each switch is displayed on the remote control switch. The microcomputer 8 of the indoor unit 2 changes the currently set target value according to the switch input. For example, when the high switch 4 is pressed, the set temperature is high, when the low switch 5 is pressed, the set temperature is low, when the strong switch 6 is pressed, the set air volume is large, and the weak switch is weak. When 7 is pressed, the set air volume is changed to a small value. How much is changed by one operation depends on the value determined in advance at the time of factory shipment. Then, these corrections are reflected in the determination conditions of the flowchart shown in FIG. That is, when the high switch 4 is input, the set temperature determined by the operation mode is increased by a predetermined value, the low switch 5 lowers the set temperature, and the strong switch 6 reduces the difference between the set temperature and the suction temperature. In the case of the weak switch 7, the difference between the set temperature and the suction temperature is increased. Then, these corrected determination conditions are stored in the non-volatile storage means, and in the subsequent operation, the operation mode and the like are determined according to the corrected determination conditions. The operation under this corrected determination condition is also called automatic recognition determination operation. Since the remote control switch 1, the indoor unit 2, and the outdoor unit 3 each have the transmission means 9, the above-described algorithm shown in FIGS. 5 and 6 can be implemented in any of them by the mutual information transmission function.

Next, a method of performing the automatic recognition determination operation without a remote controller (without the remote controller switch 1) will be described. This is a method in which the remote control switch 1 is removed from the system of FIG. 1 and only the indoor unit 2 and the outdoor unit 3 are operated. In this case, the indoor unit 2 or the outdoor unit 3 replaces the start / stop switch 13. It is the built-in input means 16. As the input method to the input means 16, pulse input,
There are level input, centralized controller, switch, etc. Further, even when the input means 16 is not provided, for example, powering on or the like can be used instead of the start / stop switch.

The input means 16 is made by any one of the above methods.
When the operation command is input from the air conditioner to the air conditioner, the automatic recognition determination operation described above is started. Further, the automatic operation can be stopped by inputting the operation command again or by interrupting the input operation command. In addition, the input of the input means 16 is increased so that the high switch 4, the low switch 5, the strong switch 6 of FIG.
If the input corresponding to the weak switch 7 is possible, the automatic driving correction algorithm described above can be implemented.

However, when operating without using the remote control switch 1, it is necessary to input a lot of setting contents to the indoor unit 2 and the outdoor unit 3 as it is, and the operation tends to be complicated. Therefore, the present invention uses a method in which automatic operation can be performed by giving one piece of setting information.
A flow chart of this method is shown in FIG. When an operation command is given to the input unit 16 of the indoor unit 2 or the outdoor unit 3,
The indoor unit 2 takes in the suction temperature and determines the operation mode based on the value. If the suction temperature is 25 ° C or higher, the cooling mode, 25
If it is less than ℃, it becomes the heating mode, but this value can be changed as described above. Next, the set air volume is determined based on the information input to the input unit 16 of the indoor unit 2 or the outdoor unit 3 or the information input in advance. This input can be set in advance by a dip switch, a jumper wire, or the like in addition to the pulse input described above. Alternatively, it is also possible to use an AD conversion element and set it by connecting resistors having different values.

Thus, according to the input set air volume,
Correct the set temperature. In the case of cooling mode, the standard setting temperature is 25 ℃, but if the set air volume is rapid, it is corrected to 22 ℃, and if it is weak, it is corrected to 27 ℃. In heating mode, the standard set temperature
In contrast to 25 ℃, if the set air volume is rapid, correct it to 27 ℃, and if it is weak, correct it to 22 ℃. These values can also be changed. Further, as supplementary control, when the suction temperature approaches the set temperature, control is performed to weaken the set air volume according to the flowchart shown in FIG. That is, the room temperature is constantly monitored during the automatic recognition judgment operation control, and when the room temperature is within 1 ° C of the set temperature, the rotation speed of the blower is changed to reduce the air volume, and the room temperature is still in the 1 ° C temperature range. When it does not enter, the control is performed as it is if it is the set air volume, and is returned to the set air volume if it is not the set air volume.

Although FIG. 7 shows an example of inputting the set air volume, the same control can be performed by inputting the set temperature.
FIG. 9 shows a flowchart for inputting the set temperature. When an operation command is given to the input unit 16 of the indoor unit 2 or the outdoor unit 3, the indoor unit 2 inputs the suction temperature from the sensor 12 section and determines the operation mode based on the value. If the suction temperature is 25 ℃ or higher, it will be the cooling mode, and if it is lower than 25 ℃, it will be the heating mode, but this value can be changed. Next, the microcomputer 8 determines the set temperature based on the information input to the input unit 16 of the indoor unit 2 or the outdoor unit 3. In this case, if the set temperature is set too finely, the input method becomes complicated.
~ 5 steps. For example, 17 ℃, 20 ℃, 22 ℃, 25 ℃,
27 ° C, etc. The set air volume is determined according to the set temperature thus input. The difference between the set temperature and the suction temperature is 5
If the temperature is above ℃, use a rapid wind. If the temperature is below ℃, use a weak wind. However, in the heating mode, the hot air is blown out by operating the hot start function described above. The difference in set temperature between the set temperature used for this control and the suction temperature can also be changed. It is also possible to add the control shown in FIG.

Although the automatic recognition determination operation has been described above, as the environment approaches the target value, the compressor 15 may be turned on / off and the blower 10 may be frequently tapped (rotation speed switched). If the operation is continued in this state, the life of the compressor 15 and the blower 10 may be shortened,
Control is required to reduce the number of times of switching. In order to achieve this, when the environment approaches the target value and is on the verge of thermo-off (stopping the operation of the equipment because the temperature is near the control temperature), the cooling or heating capacity is minimized to prevent the thermo-off. The flowchart is shown in FIG.

When the difference between the set temperature and the suction temperature is within 0.5 ° C., the capacity lowering control is started. That is, if the compressor has a variable rotation speed, such as an inverter-driven compressor, the operating frequency of the compressor 15 is reduced. Then, when the rotation speed becomes the minimum, the electronic expansion valve is then closed to reduce the refrigerant flow rate. Further, the capacity may be reduced by forming a plurality of refrigerant flow paths in the heat exchanger and switching the refrigerant flow paths with an electromagnetic valve to change the area of the portion through which the refrigerant flows in the heat exchanger. A thermo-on / off timer may be provided to prevent frequent switching of the thermo-on / off. The thermo-on / off timer prevents the compressor 15 from being turned on for a certain period of time when the compressor 15 is turned off, or from being turned off for a certain period of time when the compressor 15 is turned on.

Further, during the automatic recognition determination operation, the consumption current may increase due to an increase in indoor load or the like. At this time, if the compressor is a variable operating frequency type, the operating frequency can be lowered to reduce current consumption. But,
If the compressor is a constant speed type and has only an on / off function, the operating frequency cannot be lowered and it is necessary to stop the compressor. Further, even if the compressor has a variable operating frequency, it must still be stopped if it is operating at the lowest frequency. A method of reducing the current consumption without stopping the compressor will be described with reference to the flowchart of FIG. 11 and the refrigeration cycle diagram of FIG.

In FIG. 12, the refrigeration cycle includes a compressor 15, a heat exchanger 14, a condensing pressure control valve 20, and a liquid receiver 1.
9, expansion valve 11, evaporator 17 and accumulator 18
Are sequentially connected by piping. In the case of cooling, for example, the refrigerant flows in the direction of the arrow in FIG. 12, and the refrigerant flow rate is mainly controlled by the electronic expansion valve 11. When the pressure in the refrigeration cycle rises, generally, the pressure is lowered by opening the electronic expansion valve 11. The increase in the pressure of the compressor 15 means that the load has increased, so that the current consumption increases. Therefore, the current consumption can be reduced by lowering the pressure of the compressor. By using this principle, it is possible to reduce the current consumption without stopping the compressor even for an air conditioner equipped with a constant speed compressor. This situation is shown in the flowchart of FIG. First, the current consumption is constantly measured. If the measured current consumption value is less than or equal to the predetermined value, the refrigeration cycle is maintained as it is. When it exceeds a predetermined value, the electronic expansion valve 11 is opened by a predetermined amount to reduce the pressure in the cycle. As a result, the load on the compressor is reduced and the current consumption is reduced. The control constant, the current consumption threshold value, the opening degree of the electronic expansion valve 11 and the like necessary for this control are obtained from an algorithm determined at the time of factory shipment, and different values are set depending on the model.

When the air conditioner is operated by the automatic recognition determination operation described above, the operation mode and the like are automatically determined only by the user issuing an operation command, and thereafter the air conditioner is requested according to the user's preference. All that is required is to make relative corrections using the on-board microcomputer, which saves the user the trouble. Also, just enter certain parameters,
Since the other parameters are automatically determined, the parameters emphasized by the user can be reflected in the automatic operation. Further, when the compressor is off, the cooling or heating capacity can be lowered without turning off the compressor, so that the frequency of turning on and off the compressor can be suppressed. Also, regarding the current consumption, the electronic expansion valve is controlled without stopping the compressor, so that the current consumption can be reduced.

[0030]

As described above, according to the present invention, the following effects can be obtained regarding the operation of the air conditioner. ◆ Only the operation command at the start of operation and the favorite command (parameter command) during operation are set for the operation of the air conditioner, so it is possible to avoid the trouble of setting the operation mode. Further, since other parameters are automatically determined from the specific input parameters, the parameters emphasized by the user are reflected in the driving control, and the comfort is increased. ◆ In addition, by temporarily reducing the cooling or heating capacity, the frequency of on / off of the compressor can be suppressed, and the life of the compressor can be extended and the reliability can be improved. ◆ Furthermore, by changing the opening of the electronic expansion valve to reduce the pressure in the refrigeration squill and reduce the compressor load, it is possible to reduce the frequency of switching the compressor on and off and suppress the current consumption.

[0031]

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an air conditioner.

FIG. 2 is a control block diagram of a remote control switch.

FIG. 3 is a control block diagram of the indoor unit.

FIG. 4 is a control block diagram of the outdoor unit.

FIG. 5 is a flowchart for determining an automatic set value.

FIG. 6 is a flowchart for correcting settings.

FIG. 7 is a flowchart for automatically determining a set value when the air volume is set in advance.

FIG. 8 is a flowchart for controlling a decrease in air volume.

FIG. 9 is a flowchart for automatically determining a set value when the temperature is set in advance.

FIG. 10 is a flowchart for controlling a decrease in cooling and heating capabilities.

FIG. 11 is a control flowchart for suppressing current consumption.

FIG. 12 is a schematic diagram of a refrigeration cycle.

[Explanation of symbols]

1 ... Remote control switch, 2 ... Indoor unit, 3 ... Outdoor unit, 4 ...
High temperature switch, 5 ... Low temperature switch, 6 ... Air volume strong switch, 7 ... Air volume weak switch, 8 ... Microcomputer, 9 ... Transmission means, 10 ... Blower, 11 ... Expansion valve, 12 ... Sensor, 13 ... Start / stop switch, 14 ... Heat exchanger, 15 ... Compressor, 16 ... Input means, 17
… Evaporator, 18… Accumulator, 19… Receiver, 20… Condensing pressure control valve.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masamichi Mochizuki 390 Muramatsu, Shimizu City, Shizuoka Prefecture Hitachi Air Conditioning Systems Division (72) Inventor Masashi Watanabe 390 Muramatsu Shimizu City, Shizuoka Hitachi Air Conditioning Systems Business, Ltd. Department

Claims (13)

[Claims] 1. An outdoor unit, and at least one indoor unit pipe-connected to the outdoor unit. The outdoor unit, the indoor units, and at least one of the indoor units are connected. In a method of operating an air conditioner equipped with a remote control switch, the air conditioner is operated in accordance with a predetermined operation mode based on the start / stop input of the remote control switch, and then this operation mode is automatically set based on an input according to preference. A method for operating an air conditioner, which is characterized in that it is corrected and operated and stored. 2. The input according to the preference is at least one of increasing the set temperature, lowering the set temperature, increasing the set air volume, and decreasing the set air volume. The method for operating the air conditioner according to claim 1. 3. The outdoor unit, the indoor unit, and the remote control switch each have a transmission means and a microcomputer, and the input of the remote control switch is determined by the microcomputer of the remote control switch, and the determination result is transmitted through the transmission means of the remote control switch. 3. The microcomputer of the indoor unit controls at least one of the indoor blower and the expansion valve based on the input information received by the transmitting unit of the indoor unit, which is transmitted to the transmitting unit of the indoor unit. How to operate the air conditioner described. 4. The microcomputer of the outdoor unit controls at least one of the compressor and the outdoor heat exchanger based on the information transmitted from the transmitting unit of the indoor unit to the transmitting unit of the outdoor unit. Item 3. An air conditioner operating method according to Item 3. 5. An operating method of an air conditioner, comprising: an outdoor unit; and at least one indoor unit connected to the outdoor unit by piping. The outdoor unit and each indoor unit are connected by a transmission line. At least one of the outdoor unit and each indoor unit is provided with input means, and the air conditioner is operated according to an operation mode determined in advance based on the input from this input means. A method of operating an air conditioner, which is characterized by automatically correcting and operating and storing. 6. The input according to the preference is at least one of a high set temperature, a low set temperature, a large set air volume, and a small set air volume. The method for operating the air conditioner according to claim 5. 7. A method of operating an air conditioner, comprising: an air conditioner having an indoor unit and an outdoor unit each having a transmission means; and a remote control switch having a transmission means provided in the air conditioner for information communication. The remote control switch is provided with an input / output unit for starting and stopping the air conditioner and a display unit for operating status, and a microcomputer provided in the air conditioner is automatically operated based on the operation command given to the air conditioner from the input / output unit for starting and stopping the air conditioner. A method of operating an air conditioner, characterized in that the operation mode, temperature, and air volume are determined from the intake temperature to control the operation of the air conditioner. 8. The remote control switch is provided with relative setting change means from the current operating state, and a relative setting change command from this relative setting change means is transmitted to the air conditioner via the transmission means, and this relative setting change command is transmitted. The operating method of an air conditioner according to claim 7, wherein the microcomputer automatically corrects the operation mode, the temperature, and the air volume based on the dynamic setting change command. 9. A method of operating an air conditioner comprising an indoor unit and an outdoor unit each having a transmission means, wherein the air conditioner is provided with an external operation command input means, and an operation given from this operation command input means is provided. Based on the command, the microcomputer provided in the air conditioner automatically operates in the operation mode,
A method for operating an air conditioner, which comprises controlling the operation of the air conditioner by determining the temperature and air volume from the suction temperature. 10. The air conditioner is provided with an external command input means, and a microcomputer provided in the air conditioner automatically corrects and stores the operation mode, temperature and air volume based on a command from the command input means. The method for operating an air conditioner according to claim 9, wherein. 11. The method of operating an air conditioner according to claim 10, wherein the input from the command input means is at least one of an air volume setting command and a temperature setting command. 12. The outdoor unit has a compressor, and the outdoor unit is provided with an on-off counting means for counting the number of times the compressor is turned on and off, and the frequency of the number of times the compressor is turned on and off counted by the on-off counting means. 2. When the value is equal to or more than a predetermined value, the operation of the compressor is disregarded and the operation of the compressor is continued to reduce the air conditioning capacity to suppress the fluctuation of the room temperature even in the condition of the compressor stop condition. How to operate the air conditioner. 13. The outdoor unit has a compressor, and the air conditioner is provided with a current detecting means for measuring current consumption of at least one of the compressor and the air conditioner, and the current value detected by the current detecting means is The operating method of the air conditioner according to claim 1, wherein when the predetermined value is reached, the opening degree of the expansion valve provided in the indoor unit is increased to reduce the pressure in the air conditioner.