JP5751742B2 - Air conditioning equipment remote management system, remote management device, control device - Google Patents

Description

  The present invention relates to a remote management system, a remote management device, and a control device for an air conditioning facility for energy saving in a commercial air conditioning facility.

Conventionally, in order to save energy, it is recommended that air conditioning equipment installed in buildings such as buildings and facilities be set to a higher temperature during cooling and lower during heating. Has been.
However, it is merely a “recommendation”, and if the set temperature is adjusted according to the comfort level in each indoor unit, the desired energy saving effect cannot be obtained.

In addition, there is one that centrally manages air conditioning equipment in a building (see, for example, Patent Document 1), and in such a centralized management method, the set temperature can be uniformly set on the management side. However, due to the importance of energy saving, the cooling and heating of each space where the indoor unit is installed is not sufficient, and the comfort, which is the original purpose of air conditioning, may be impaired.
Thus, energy saving and comfort are in a contradictory relationship, and it is very difficult to achieve a balance.

JP 2000-18687 A

  The present invention was made based on such a technical problem, and provides a remote management system, a remote management device, and a control device for an air conditioning facility that can save energy without impairing comfort. Objective.

The remote management system for commercial air conditioning equipment of the present invention made for such purposes includes a client terminal for obtaining operating condition information including the amount of power used by the air conditioning equipment from the commercial air conditioning equipment, and a client terminal. A remote management device connected via an external network, and the client terminal automatically obtains operating condition information of the air conditioning equipment by automatically executing a process based on a predetermined computer program. Send to remote management device via external network. Then, the remote management device automatically executes processing based on a predetermined computer program so that the amount of power used in the air-conditioning equipment falls below a preset target value based on the operating condition information. The operating condition information of the air conditioning equipment is generated, and the generated operating condition information is transmitted to the client terminal via the external network.
And this invention diagnoses whether the comfort in the space which is air-conditioning with the air-conditioning equipment is satisfied, when the power consumption in the air-conditioning equipment exceeds the target value. To do. As a result of the diagnosis, if comfort is satisfied, the maximum value of the outdoor fan speed, the target control pressure value of the outdoor fan, and the target control pressure value of the compressor are used to reduce the amount of power used in the air conditioning equipment. Control at least one of the following. As a result, the operating conditions can be corrected so that the amount of power used in the air-conditioning equipment falls below a preset target value. Diagnostic result, if no comfort is satisfied, while not issue the control command that corrects the operating conditions of the HVAC, as the operating condition information, reducing the target value of the power usage after that time By generating the new target value, the power consumption of the air-conditioning equipment is set to be lower than the long-term target value set for a period longer than a certain period.
The air conditioning facility can change the operating condition of the air conditioning facility based on the operation information transmitted from the remote management device.
Here, the client terminal may be provided separately from the control device of the air conditioning equipment, and may be configured to be able to exchange the control device and operating condition information by communication. It can also be the control device itself.

As described above , the remote management device, when the power consumption in the air conditioning equipment included in the operating condition information of the air conditioning equipment transmitted from the client terminal exceeds the target value set for a certain period As the operating condition information, by generating a new target value that reduces the target value of the power consumption after that time, the power consumption of the air conditioning equipment is set for a period longer than a certain period. Keep it below the long-term target. As a result, the amount of power used in the air-conditioning equipment in a period longer than the certain period can be made to be lower than a preset target value.
Here, the fixed period can be set to a period of 1 hour, 1 day, 1 week, 1 month, or the like. As a period longer than the fixed period, the long period can be set as 1 day if the fixed period is 1 hour, and the long period can be set as 1 week if the fixed period is 1 day.

The present invention can also be a remote management device that executes predetermined processing based on operating condition information of an air conditioning facility that is transmitted from the control device side of the business air conditioning facility via an external network. The remote management device automatically executes processing based on a predetermined computer program so that the amount of power used in the air conditioning equipment falls below a preset target value based on the received operating condition information. The operation condition information of the air conditioning equipment is generated, and the generated operation condition information is transmitted to the client terminal via the external network. Furthermore, this remote management apparatus diagnoses whether the comfort in the space where air conditioning is performed in the air conditioning facility is satisfied when the amount of power used in the air conditioning facility exceeds a target value . As a result of the diagnosis, if comfort is satisfied, the maximum value of the outdoor fan speed, the target control pressure value of the outdoor fan, and the target control pressure value of the compressor are used to reduce the amount of power used in the air conditioning equipment. Control at least one of the following. As a result of diagnosis, if comfort is not satisfied, the control command to correct the operating condition of the air conditioning equipment is not issued , but the target value of power consumption after that point is reduced as operating condition information By generating a new target value, the power consumption of the air-conditioning equipment is set to be lower than the long-term target value set for a period longer than a certain period.
Such a remote management device can be installed in a manufacturer of air conditioning equipment.
In this remote management device, based on the information indicating the operating conditions of the air conditioning equipment, the power consumption of the air conditioning equipment at that time is reduced so that it falls below the target value of the power consumption set for a certain period of time. It is preferable to generate the operating conditions of the air-conditioning equipment for generating the information, or to generate information for changing the distribution of the target value of the used electric energy for each period when the certain period is divided into a plurality of periods.

  Here, the remote management device can also set a target value of the power consumption for each period based on the actual power consumption for each period before the previous year.

The present invention is a control device for an air conditioner, wherein the air conditioner is based on the power consumption of the air conditioner at that time so as to be less than the target value of the power consumption set for a certain period of time. It is also possible to reduce the amount of power used or to change the distribution of the target value of power consumption for each period when a certain period is divided into a plurality of periods.
That is, the air conditioning equipment according to the present invention can perform the above-described processing based on the data received by the remote management device as described above, but without using a remote management device via an external network, a so-called stand As an arrangement of the alone, it is also possible to perform control for suppressing the amount of power used by the air conditioning equipment.

  According to the present invention, it is possible to save energy without impairing comfort.

It is a figure which shows the whole structure of the remote management system of the air conditioning equipment in this Embodiment. It is a figure which shows the flow of the process for keeping the electric power consumption of an air conditioning installation in the range of a target value by the control apparatus and remote management apparatus of an air conditioning installation. It shows an example of the target value of power consumption, (a) is a figure which shows the target value for every hour, (b) shows the target value for every day. In the same figure, (a) is a figure which shows the example of a target value for every week, and (b) is a target value for every month. It is a figure which shows the flow of the diagnostic process of comfort. It is a figure which shows the flow of the control command process which correct | amends the driving | running condition of air conditioning equipment. It is a figure which shows the flow of the allocation change process of the target value of used electric energy. It is a figure which shows the flow of the allocation change process after the present part of the excess of the target value of electric power consumption.

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.
FIG. 1 is a diagram showing an overall configuration of an air conditioning equipment management system in the present embodiment.
The system shown in FIG. 1 includes an air conditioning equipment control device (client terminal) 10 and a remote management device 20 provided on the manufacturer side that manufactured the air conditioning equipment.
The air conditioner control device 10 and the remote management device 20 are capable of data communication with each other via a network (external network) 100 such as the Internet, a dedicated line, a public telephone line network or the like.

  The remote management device 20 includes a computer device, and includes a transmission / reception unit that exchanges data with the control device 10 of the air conditioning equipment via the external network 100, a CPU, and the like, and is predetermined based on a predetermined computer program. A processing unit that automatically executes the process, and a storage unit that includes a memory and various storage devices and stores data received by the transmission / reception unit, processing results of the processing unit, and the like.

Hereinafter, the control process for energy saving by the control apparatus 10 and the remote management apparatus 20 of an air conditioning facility is demonstrated.
The processing described below is performed by automatically executing predetermined processing based on a predetermined computer program in each of the control device 10 and the remote management device 20 of the air conditioning equipment. . In the following description, specific numerical values such as temperature and time are given as threshold values for the determination process. However, this is merely an example, and it goes without saying that other numerical values can be appropriately used as the threshold values.
As shown in FIG. 2, the control device 10 for the air conditioning equipment periodically detects operating condition information including the amount of power used by the air conditioning equipment (for example, once a day, once an hour, etc.). (Step S101). Here, as information to be detected from the air conditioning equipment, for example, power consumption, indoor unit suction temperature, indoor unit ON / OFF, indoor unit heat exchanger temperature, outdoor unit fan speed, outdoor unit There are compressor pressure, outdoor unit fan pressure, expansion valve opening, and these set values.
The air conditioning equipment control device 10 transmits the detected information to the remote management device 20 via the network 100 (step S102).

When the remote management device 20 installed at the manufacturer receives the operating condition information of the air conditioning equipment transmitted from the control device 10 of the air conditioning equipment (step S103), the power consumption in the air conditioning equipment at that time is the target. It is determined whether or not the value is equal to or less than the value (step S104).
As a result, if it does not exceed the target value, the operation under the operating conditions is continued until the next time the amount of power used is measured.
If the target value is exceeded, the operating condition of the air conditioning equipment is corrected and controlled (step S105 and subsequent steps).
Hereinafter, such control after step S105 will be described in detail.

First, a user and a manufacturer set a target value for the amount of power used by the air-conditioning equipment in advance. The target value is preferably an annual target value. In order to set an annual target value, a detailed target value of electric energy is set as follows. 3 and 4 are examples of target values of the electric energy set in this way.
・ Target value for every hour (see Fig. 3 (a))
・ Target value for each day (see Fig. 3 (b))
・ Target value per week (see Fig. 4 (a))
・ Target value for each month (see Fig. 4 (b))

In order to set the target value in this manner, it is possible to set the target value for every month, every week, every day, and every hour based on the actual value of the electric energy of the previous year.
Moreover, based on the scale of the air conditioning equipment, the annual target value that can be recommended by the manufacturer is presented, and based on this, the target value can be set for every month, every week, every day, every hour. .
Further, the target value set as described above is preferably corrected based on a long-term weather forecast. For example, if an intense heat forecast is issued, the amount of power in summer is expected to increase, so that the target value can be set higher by taking it into consideration.
Such a target value is set manually.
The target value set in this way is input to the remote management device 20 and stored in the storage unit.

  Moreover, in order to measure the electric power consumption of an air conditioning apparatus by step S101, a power meter should be attached to an air conditioning apparatus and the electric energy measured with this wattmeter should just be detected with the control apparatus 10 of an air conditioning apparatus. In addition, the amount of power used can be predicted based on the operation data of the air conditioner. This can be estimated based on the current value supplied to the air conditioner, estimated based on the temperature pressure information of the refrigerant, or the like.

  If the result of determination in step S104 is that the target value has been exceeded, then the comfort of the space in which air conditioning is being performed by the air conditioning equipment is diagnosed (step S105).

Specifically, the comfort diagnosis in step S105 is performed as shown in FIG.
First, it is determined whether the operation mode is cooling or heating (step S201).
If it is air conditioning,
・ Whether the remote control (remote controller) has been turned on, has the thermo been turned on continuously for 10 minutes or longer (suction temperature is higher than the set temperature and cooling operation)? (Step S202).
・ Is the temperature of the indoor heat exchanger 10 ° C or less? (Step S203).
• Has the remote control been turned on for more than 30 minutes? (Step S204).
• Has the suction temperature dropped by 3 degrees or more? (Step S205).
• Has the remote control been turned on for more than 3 hours? (Step S206).
・ Is the thermo turned off more than twice? (Step S207).
The determination is sequentially performed.

If the temperature of the indoor heat exchanger is not lower than 10 ° C even though the thermostat is turned on continuously for 10 minutes or more after the remote control is turned on (steps S202 to S203), the remote control is turned on. 30 minutes or more have passed and the suction temperature has not decreased by 3 degrees or more (steps S204 to S205), the thermostat has been turned off even though 3 hours have passed since the remote control was turned on. When the number of times is one (steps S206 and S207), it is determined that cooling is not sufficiently performed, and it is determined that “comfort is not satisfactory” (step S208).
If all the conditions in steps S202 to S207 are satisfied, it is determined that “comfort is satisfied” (step S209).
If the conditions of steps S202, S204, and S206 are not satisfied, the process returns to step S201, and it is not determined whether the comfort is satisfied.

When the operation mode is heating (step S201),
・ Whether the remote controller (remote controller) is turned on or not for 10 minutes or more. (Step S211).
・ Is the temperature of the indoor heat exchanger 40 ℃ or higher? (Step S212).
• Has the remote control been turned on for more than 30 minutes? (Step S213).
• Has the suction temperature increased by 3 degrees or more? (Step S214).
• Has the remote control been turned on for more than 3 hours? (Step S215).
・ Is the thermo turned off more than twice? (Step S216).
The determination is sequentially performed.

And if the temperature of the indoor heat exchanger is not over 40 ° C even though the thermo is turned on continuously for more than 10 minutes after the remote control is turned on (steps S211 to S212), the remote control is turned on. More than 30 minutes have passed and the suction temperature has not risen by more than 3 degrees (steps S213 to S214). The thermo is turned off even though 3 hours have passed since the remote control was turned on. When the number of times is one (steps S215 to S216), it is determined that heating is not sufficiently effective, and “comfort is not satisfactory” is determined (step S208).
If all the conditions in steps S211 to S216 are satisfied, it is determined that “comfort is satisfied” (step S217).
If the conditions of steps S211, S213, and S215 are not satisfied, the process returns to step S201, and it is not determined whether the comfort is satisfied.

  Thus, in step S105, after performing the process which diagnoses the comfort of the space which is air-conditioned by the air conditioning equipment, it is determined based on the diagnosis result whether the comfort is satisfied (step). S106). As a result, when the comfort is satisfied, a control command process for correcting the operating condition of the air-conditioning equipment is performed in order to reduce the amount of power used (step S107).

In order to reduce the amount of electric power used by the air conditioning equipment, there are the following methods.
・ Limit the maximum value of outdoor fan speed.
・ Set the maximum value of the outdoor fan speed in steps according to the level of deviation from the target value.
・ Change the target control pressure value of the compressor.
・ Set the target control pressure value of the compressor in stages according to the level of deviation from the target value.
・ Change the deviation from the target control pressure value of the compressor.
・ Set the deviation from the target control pressure value of the compressor stepwise according to the deviation level from the target value.
・ Change the target control pressure value of the outdoor fan.
・ Set the target control pressure value of the outdoor fan in stages according to the level of deviation from the target value.
・ Change the deviation from the target control pressure value of the outdoor fan.
・ Set the deviation from the target control pressure value of the outdoor fan in stages according to the level of deviation from the target value.
Here, an example will be given in which the amount of power used is reduced by changing (correcting) the target control pressure value of the compressor and the target control pressure value of the outdoor fan in the control command processing.

FIG. 6 is a diagram showing a flow of control command processing for correcting the operating condition of the air-conditioning equipment in step S107.
That is, first, it is determined whether or not the target pressure (refrigerant pressure around the compressor) for determining the rotation speed of the compressor (represented as “Comp” in the figure) of the indoor unit has been changed since the start of operation (step S301). . This refers to the target pressure data of the compressor stored in the control device 10 of the air conditioning equipment. As a result, if the target pressure has not been changed, the target pressure of the compressor is changed (step S302). Specifically, the target pressure of the compressor is increased during cooling, and is decreased during heating. Since the change in the target pressure is reflected in a reduction in the number of rotations of the compressor, the amount of electric power is reduced and an energy saving effect is obtained.
If there is a history of changing the target pressure, it is determined whether or not the number of changes is two (step S303). As a result, if the target pressure is changed once, the target pressure of the compressor is changed (step S302). Thereby, the power consumption in an air conditioning facility can be suppressed.

If the target pressure change count is two, it is determined whether there is a history of changing the target control pressure value of the outdoor fan (step S304).
This refers to the change history data of the target control pressure value of the outdoor fan stored in the control device 10 of the air conditioning equipment. As a result, if the target control pressure value has not been changed, the target control pressure value of the outdoor fan is changed (step S305). Specifically, the target control pressure value of the outdoor fan is decreased when cooling, and is increased when heating.
If there is a history of changing the target control pressure value of the outdoor fan, it is determined whether or not the number of changes is two (step S306). As a result, if the number of changes in the target control pressure value of the outdoor fan is one, the target control pressure value of the outdoor fan is changed (step S305). Further, if the number of changes in the target control pressure value of the outdoor fan is two, no further change (correction) of the operating condition setting is performed, and the process ends.

In this way, when the amount of power used exceeds the target value, control for suppressing the target pressure of the compressor and the target control pressure of the outdoor fan in the control command processing for correcting the operating condition of the air conditioning equipment in step S107. By issuing the command, it is possible to perform correction for suppressing the amount of power used in the air-conditioning equipment.
After step S107, the process returns to step S103 and waits for reception of new operating condition information.

Further, if it is determined in step S106 that the comfort is not satisfied, a control command for correcting the operating condition of the air conditioning equipment is not issued, and then the allocation change of the target value of the used electric energy, that is, Whether or not it is possible to reduce the target value of power consumption after the current time by transferring the excess of the actual power consumption with respect to the target value of power consumption to the target value allocation after the current time Diagnose (step S108).
As shown in FIG. 7, when the amount of power received in step S103 (step S401 in FIG. 7) exceeds the target power value for every hour (step S402), It is determined whether or not the time is earlier than 13:00 (step S403). If it is before 13:00, the allocation of the current power consumption to the target value is changed (step S404), and after 13:00 In this case, the allocation change to the target value of the power consumption for the next day is performed (step S405).

  If the total amount of power used on the day exceeds the daily target power value due to the amount of power received in step S103 (step S406), it is determined whether the day is earlier than Thursday (step S406). S407), if it is before Thursday, the allocation of the power consumption for this week to the target value is changed (step S408), and if it is after Thursday, the target value for the power consumption for the next week is changed. Is changed (step S409).

  Furthermore, when the total amount of power used in the week exceeds the target power value for each week due to the amount of power received in step S103 (step S410), the week is from the third week of the month. It is determined whether or not it is early (step S411). If it is before the third week, the allocation of the power consumption for the month is changed to the target value (step S412). In step S413, the allocation of the power consumption for the next month to the target value is changed.

If the total amount of power used in the month exceeds the target power value for each month due to the amount of power received in step S103 (step S414), it is determined whether the month is earlier than July. In step S415, if it is before July, the allocation of power consumption for that year is changed to the target value (step S416). If it is after July, the target value is reset. Is performed (step S417).
In step S414, even if the amount of power does not exceed the target power value for each month, if it seems to exceed the target power value for one year (step S418), steps S415 to S417 are performed. Move to, and change the target value assignment or reset the target value.
In step S414, if the power amount does not exceed the target power value for each month and the target power value for one year, it is not necessary to change the allocation of the target value of the used power amount, and the target value remains as it is. Maintain (step S419).

  In steps S404, S405, S408, S409, S412, S413, and S416 in FIG. 7, when it is decided to change the allocation of the amount of power used exceeding the target value after the current time, as shown in FIG. Then, an allocation change process is performed for the excess of the target value of the power consumption after the current time (steps S109 and S110).

Here, changing the allocation of the excess of power consumption to the target value after the current time is basically based on the amount of power consumption exceeding the target value in the remaining days, weeks, or months. There are a method of evenly distributing and a method of distributing and allocating the excess of the power consumption amount to the target value in accordance with the distribution ratio of the original power amount in the unit of 1 day, 1 month and 1 year.
As shown in FIG. 8, when it is decided to change the allocation of the target value for the day in step S <b> 404, the “excess electric energy / the remaining time of the day” is calculated, and is allocated equally to each remaining time of the day, The target value for each time is reduced by the allocated amount (steps S501, S502, S503).
In addition, when the next day target value allocation change is performed in step S405, “excess electric energy / next day operation time” is calculated, and is allocated evenly every hour during the next day operation time. The target value for each time is reduced by the allocated amount (steps S501, S502, S504).

In step S408, if it is decided to change the target value for this week, "excess energy / number of days remaining in the week" is calculated and allocated equally on each day of the week. The target value for each day is reduced (steps S505, S506, S507).
In step S409, if it is decided to change the target value for the next week, the "excess energy / the number of working days for the next week" is calculated and assigned evenly for each day during the operating period of the next week, The target value for each day is reduced by the allocated amount (steps S505, S506, S508).

In step S412, if the target value allocation for the current month is to be changed, "excess energy / number of days remaining in the month" is calculated and allocated equally on each day of the month. The target value for each day is reduced (steps S509, S510, S511).
Further, in step S413, if it is decided to change the target value for the next month, calculate "excess electric energy / number of working days for the next month" and assign it evenly for each day during the operating period of the next month, The target value for each day is reduced by the allocated amount (steps S509, S510, S512).

  In step S416, if the target value allocation for the current year is to be changed, "excess electric energy / number of remaining months of the year" is calculated and allocated equally to each month of the year. Only the target value for each month is reduced (steps S513 and S514).

  Further, in steps S417 and S111, the target value can be reset according to the excess amount of power up to the present time. At this time, there is also a method of giving priority to the reduction of the electric energy even if the comfort is impaired in order to achieve the target value of the electric power used. In this case, the comfort judgment level can be set in several stages. For example, when maintaining comfort, there are cases where priority is given to reducing the amount of power even at the expense of comfort to some extent, and cases where priority is given to reducing the amount of power at the expense of considerable comfort. This determination level needs to be set in advance between the user and the manufacturer.

In addition to step S417, the target value can also be reset when the schedule changes significantly due to the convenience of the user, such as excessive working hours or an increase in the number of working days, resulting in a significant excess of power. is there.
Further, when resetting the target value, this is determined after consultation between the user and the manufacturer directly.

  When the remote management device 20 on the manufacturer side performs the control command process for correcting the operating condition of the air conditioning equipment in step S107 and the target value allocation change process for the used electric energy in step S110, the process result data is obtained. And transmitted to the control device 10 of the air conditioning equipment via the network 100. The control device 10 corrects the operating condition of the air conditioning equipment based on the received data, or executes the operation of the air conditioning equipment using the changed target value.

As described above, the operating condition information is acquired from the air conditioning equipment in the control device 10 of the air conditioning equipment and transmitted to the remote management device 20 on the maker side. In the remote management device 20, from the obtained operating condition information , When the amount of power used has exceeded the target value, if the comfort level is satisfied, a control command for suppressing the amount of power used is executed by the control device 10 of the air conditioning equipment. This makes it possible to reduce the amount of power used while satisfying comfort.
In addition, when the comfort level is not satisfied, the excess of the power consumption is transferred to the target value of the power consumption after that point to reduce the target value. That is, when the comfort is not satisfied, it is determined that the power consumption is not forcibly reduced, but the comfort is not further deteriorated. Moreover, it is easy to keep the total power consumption within the target value range by passing the target value.

In the above embodiment, the operating condition information of the air conditioner is not limited in any way, other parameters other than those shown above are used, some of them are omitted, or a combination of them is appropriately combined. Diagnosis may be performed.
In addition to this, as long as it does not depart from the gist of the present invention, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate.

  DESCRIPTION OF SYMBOLS 10 ... Control apparatus (client terminal) of air conditioning equipment, 20 ... Remote management apparatus, 100 ... Network (external network)

Claims (5)

A client terminal that acquires operating condition information indicating operating conditions including the amount of power used by the air conditioning equipment from the commercial air conditioning equipment;
A remote management device connected to the client terminal via an external network,
The client terminal automatically executes processing based on a predetermined computer program, thereby acquiring the operating condition information of the air conditioning equipment and transmitting it to the remote management device via the external network. ,
The remote management device automatically executes processing based on a predetermined computer program, so that the amount of power used in the air-conditioning equipment falls below a preset target value based on the received operating conditions. So as to generate the operating condition information of the air conditioning equipment and transmit the generated operating condition information to the client terminal via the external network,
The remote management device diagnoses whether or not comfort in a space where air conditioning is performed in the air conditioning facility is satisfied when the amount of power used in the air conditioning facility exceeds the target value,
As a result of the diagnosis, if comfort is satisfied, the maximum value of the outdoor fan rotation speed, the target control pressure value of the outdoor fan, and the target control pressure of the compressor are used to reduce the amount of power used in the air conditioning equipment. Control at least one of the values,
As a result of the diagnosis, when comfort is not satisfied, a control command for correcting the operating condition of the air conditioning equipment is not issued, while the operating condition information includes the amount of power used after that time. By generating a new target value with a reduced target value, the power consumption of the air-conditioning equipment is set to be less than the long-term target value set for a period longer than the certain period. A remote management system for air conditioning equipment for business use . The said air conditioning equipment changes the operating condition of the said air conditioning equipment based on the transmitted said operating condition information, The remote management system of the business air conditioning equipment of Claim 1 characterized by the above-mentioned. A remote management device that executes predetermined processing based on operating condition information indicating operating conditions of the air-conditioning equipment transmitted from the control device side of the commercial air-conditioning equipment via an external network,
By automatically executing a process based on a predetermined computer program, based on the received operating condition information, the air conditioning so that the amount of power used in the air conditioning equipment falls below a preset target value. The operation condition information of equipment is generated, and the generated operation condition information is transmitted to the client terminal via the external network,
The remote management device is
When the amount of power used in the air-conditioning equipment exceeds the target value, it is diagnosed whether or not comfort in a space where air-conditioning is performed in the air-conditioning equipment is satisfied,
As a result of the diagnosis, if comfort is satisfied, the maximum value of the outdoor fan rotation speed, the target control pressure value of the outdoor fan, and the target control pressure of the compressor are used to reduce the amount of power used in the air conditioning equipment. Control at least one of the values,
As a result of the diagnosis, when comfort is not satisfied, a control command for correcting the operating condition of the air conditioning equipment is not issued, while the operating condition information includes the amount of power used after that time. By generating a new target value with a reduced target value, the power consumption of the air-conditioning equipment is set to be less than the long-term target value set for a period longer than the certain period. A remote management device for commercial air conditioning equipment. The remote management device is
The air conditioning for reducing the power consumption of the air-conditioning equipment at that time based on the operating condition information of the air-conditioning equipment so as to be lower than the target value of the power consumption set for a certain period The generation of the operation condition information of the facility or the information for changing the distribution of the target value of the power consumption for each period when the certain period is divided into a plurality of periods is generated. The remote management device for commercial air conditioning equipment described. The remote management device for a commercial air-conditioning facility according to claim 4, wherein a target value for the amount of power used in each period is set based on the actual amount of power used in each period before the previous year.

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