JP3313481B2 - Air conditioner using absorption refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner using an absorption refrigerator for general houses and small buildings.

[0002]

2. Description of the Related Art Air conditioners using absorption chillers are currently mainly used for industrial and commercial facilities such as buildings and large stores.

In a cooling system of an air conditioner using an absorption refrigerator, a refrigerant vapor evaporated in a regenerator is condensed in a water-cooled condenser, and the condensed refrigerant is guided to an evaporator to evaporate. The cooling medium (usually water) circulating between the fan coil unit provided in the room to be air-conditioned and the refrigerator is cooled by the latent heat of evaporation. On the other hand, the operation is performed in a cycle in which the evaporated refrigerant vapor is absorbed into a concentrated solution (absorbing liquid) by a water-cooled absorber and returned to the regenerator again.

In an air conditioner using an absorption type refrigerator of this type, the temperature of a cooling medium circulated in an indoor fan coil unit is cooled to about 7 ° C. in an evaporator, and the cooling medium is cooled in a fan coil in the room. To cool the room air and return it to the evaporator at around 12 ° C. When an aqueous solution of lithium bromide is used as the absorbing solution, it is necessary to maintain the temperature of the absorbing solution in the absorber at around 40 ° C. In order to maintain this temperature, a cooling tower is installed on a rooftop or the like to provide a water cooling circuit. The method of cooling with is taken.

[0005] However, the conventional air-conditioning apparatus using a water-cooled absorption chiller has the following problems.

(1) Since the temperature of the absorber is controlled by a water-cooling method, the equipment becomes large and piping is required, which requires a lot of construction cost, and is necessary for general houses and small-scale buildings. Not suitable for cooling.

(2) Since it is necessary to connect the fan coil unit in the room to be cooled and the refrigerator with a pipe for circulating cooling medium, construction costs and equipment costs are high. This is the same for an ammonia absorption refrigerator using ammonia water as the absorbing liquid and the refrigerant.

Therefore, the present inventors perform a cooling cycle operation in which the condenser and the absorber are cooled not by the water cooling system but by the air cooling system, and the air to be cooled is directly passed through the evaporator to be cooled instead of using the cooling medium. A patent application has already been filed for an air conditioner (Japanese Patent Application No. Hei 5-22351). FIG. 4 shows a main part of a modification of an air conditioner using a single-effect absorption refrigerator proposed in the above-mentioned application, and FIG. 5 shows an installation state of the air conditioner.

The air conditioner, as shown in FIG.
The outdoor unit 1 is disposed outside the room 5 of the house to be air-conditioned by a configuration as shown in FIG. 4, and the indoor unit 2 has only the cool air outlet and the indoor air inlet. And is disposed inside the chamber 5. The outdoor unit 1 and the indoor unit 2 are connected by a cooling air blow duct 3 and a room air intake duct 4. Reference numeral 6 denotes a remote controller for starting or stopping the operation of the apparatus, setting or canceling the automatic operation, setting the room temperature, and adjusting the amount of cool air to be blown.

The interior of the outdoor unit 1 has a structure as shown in FIG. 4, in which an aqueous solution of lithium bromide is used as an absorbing liquid and water is used as a refrigerant.

The evaporator 10 has a function of evaporating the refrigerant under reduced pressure and cooling the air passing therethrough by the latent heat of the evaporation, and is connected to the ventilation duct 3 and the intake duct 4.
A blower fan 11 is provided in the intake duct 4.

The regenerator 12 has a function of generating a refrigerant vapor by heating the rare absorbing liquid having a low concentration by absorbing the refrigerant by the burner 13 and concentrating the concentration of the absorbing liquid. Fuel gas is supplied to the burner 13 from a fuel supply pipe 14, and the degree of combustion is determined by a fuel supply control valve 15.
Is adjusted by

The condenser 16 has a function of cooling and liquefying the refrigerant vapor sent from the regenerator 12 by an air-cooling fan 17, and a part of the refrigerant in a refrigerant tank 18 for adjusting the concentration of the circulating solution. To store.

The absorber 20 stores the absorbing liquid, has a function of absorbing the refrigerant evaporated in the evaporator 10 into the absorbing liquid, and is air-cooled by the same air-cooling fan 17 as the condenser 16. The diluted absorbing liquid whose concentration has been lowered by absorbing the refrigerant is temporarily stored in the diluted solution tank 21.

Reference numeral 22 denotes a dilute solution tank 21 and a regenerator 12.
A heat exchanger 23 for exchanging heat between a low-temperature diluted absorbent having a low concentration toward the regenerator 12 and a high-temperature concentrated absorbent having a high concentration flowing from the regenerator 12 to the absorber 20. The lowered diluted absorbing solution is supplied from the diluted solution tank 21 to the regenerator 12.
A pump 24 is a pressure loss member such as a capillary provided between the downstream side of the evaporator 10 and the upstream side of the condenser 16.

V1, V2, V3, V4, and V5 are valves such as solenoid valves.
This is a valve having a check function that does not allow the refrigerant to flow from the side to the refrigerant tank 18 side.

The above air conditioner basically controls each vessel by controlling the temperature of each vessel except that a pump 23 is used to send the absorbing solution from the dilute solution tank 21 to the regenerator 12. A pressure difference is created between them, and the refrigerant is sent out and circulated by the pressure difference.

[0018]

By the way, the condenser 16 of the above-mentioned air conditioner is provided with a large number of tubes having cooling fins formed at intervals of 2 mm on the outside, through which refrigerant vapor is passed. By sending air from the air cooling fan 17, the refrigerant vapor is cooled and liquefied. However, the air conditioner may cause clogging due to accumulation of dust and dust between the cooling fins during a long period of use, the cooling fins may be contaminated, and the cooling fins themselves may be deteriorated. is there. If this state is left as it is, the cooling capacity of the condenser 16 decreases, so that the outlet temperature of the condenser 16 cannot be reduced even if the rotation speed of the air cooling fan 17 is increased.

In general, since there is a correlation between the pressure and the temperature, the outlet temperature of the condenser 16 must be higher than the inlet temperature of the evaporator 10 in order to send the refrigerant from the condenser 16 to the evaporator 10 by the pressure difference. In other words, it is necessary to keep the outlet temperature of the condenser 16 constant for the evaporator 10 having a preset pressure. However, if the outlet temperature of the condenser 16 becomes too high, the outlet temperature of the condenser 16 becomes too high. In addition, the pressure difference between the condenser 16 and the evaporator 10 becomes too large, causing a sudden pressure drop at the inlet of the evaporator 10, causing a problem that the refrigerant is vaporized and blown out (flushing).

The present invention has been made in view of the above points, and has been developed in the case where the cooling fins of the condenser are deteriorated over time or clogged by dirt and the cooling capacity of the condenser is reduced.
It is an object of the present invention to provide an air conditioner that detects this and issues a warning to prompt a user to perform inspection and cleaning.

[0021]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an evaporator for evaporating a refrigerant, an absorbing liquid for absorbing the refrigerant, and absorbing the refrigerant vapor evaporated by the evaporator in the absorbing liquid. Absorber, a regenerator that pumps and heats the diluted absorbing liquid that has absorbed the refrigerant vapor to generate refrigerant vapor and a concentrated absorbent, and cooling fins that condense the refrigerant vapor generated by the regenerator. Having a condenser, the condenser and the absorber are cooled by an air-cooling fan, the room air to be air-conditioned is directly cooled by evaporation of the refrigerant in the evaporator, and the cooled air is passed through a duct. In an air conditioner using an absorption refrigerator that blows air into a room and performs cooling, an outside air temperature detecting means for detecting an outside air temperature, an outlet temperature detecting means for detecting a condenser outlet temperature, and a method of setting the condenser outlet temperature to a predetermined temperature To hold Means for controlling the number of rotations of the air-cooling fan, means for detecting the number of rotations of the air-cooling fan, and appropriate rotation of the air-cooling fan determined in advance so as to keep the outlet temperature of the condenser constant in accordance with the outside air temperature and the amount of heating in the regenerator First storage means for storing the number of rotations, second storage means for storing the actual rotation number of the air-cooling fan, and the actual rotation number calculated based on the appropriate rotation number and the actual rotation number of the air-cooling fan. A third storage means for storing the fluctuation data in a time series and a warning means for warning a clogging of the cooling fin when the fluctuation data of the rotation speed exceeds a certain value are provided.

[0022]

According to the present invention, each time the air conditioner is started, the actual number of revolutions of the air-cooling fan that keeps the condenser outlet temperature constant is detected, and at the same time, it corresponds to the outside air temperature at the time of starting and the heating amount in the regenerator. Reads the proper rotation speed of the air-cooling fan stored in advance, and stores the fluctuation data of the rotation speed calculated based on the proper rotation speed and the actual rotation speed in a time-series manner. Is exceeded, a warning is issued assuming that the cooling fins of the condenser have deteriorated or clogged over time, and the user is encouraged to perform inspection and cleaning.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 shows a main part of an embodiment of an air conditioner using a single-effect absorption refrigerator according to the present invention. The installation state of the air conditioner according to the present invention is as shown in FIG.

The configuration of the air conditioner according to the present invention is the same as that shown in FIG. 4, and therefore its description is omitted. However, water is used as the refrigerant and lithium bromide is used as the absorbing liquid.

Referring to FIG. 1, the electric circuit required for controlling the air conditioner according to the present invention and the operation of the device will be described.

T1 is a sensor for detecting the indoor temperature provided on the upstream side of the evaporator 10, T2 is a sensor for detecting the air temperature provided on the downstream side of the evaporator 10, and T3 is a liquid level detection of the regenerator. T4 is a sensor for detecting the temperature of the condenser, T5 is a sensor for detecting the temperature of the outside air, T6 is a sensor for detecting the temperature of the outlet of the condenser, and 33 warns the user of clogging of the cooling fins of the condenser. Warning lamp.

The air conditioner includes a controller 30 including a CPU, a memory, and a drive circuit, and a remote controller 6.
A communication controller 31 is provided for receiving a setting signal from the receiving unit 2a of the indoor unit 2 (see FIG. 5) and receiving a signal from the receiving unit 2a, and the controller 30 includes sensors T1, T
2, the signals from T3, T4, T5, and T6 and the signal from the communication controller 31 are received, and the blower fan 11, the air cooling fan 17, the pump 23, and the fuel supply control valve 1 of the fuel supply pipe 14 are received.
5. The operation of the valves V1, V2, V3, V4, V5 and the lighting of the warning lamp 33 are controlled.

Next, the operation of the cooling cycle will be described with reference to FIG.

Before the start of operation, valves V1, V3 and V5 are closed and valve V2 is open. The regenerator 12 is empty.

[0031] When turning on the operation button of the remote control 6, the valve opens V3 (F-1), the absorption liquid from the dilute solution tank 21 by the motor M ₂ is driven pump 23 is sent to the regenerator 12 (F- 2). Other valves remain as they are. At this time, the CPU of the controller 30 is the sensor T3
It is determined whether or not the liquid level of the regenerator 12 has reached a specified level by looking at the signal from (F-3). When the liquid level has reached the specified level, the fuel supply control valve 15 is opened to supply fuel gas from the fuel supply pipe 14 and ignite the burner 13 (F-4). Refrigerant 12 generates refrigerant vapor and flows to condenser 16, and the temperature of condenser 16 gradually increases. The CPU of the controller 30 determines whether or not the temperature of the condenser 16 has reached a predetermined value from a signal from the sensor T4 (F−
5) When the predetermined value is reached, the valve V1 is opened and the valve V2 is closed (F-6), and the blower fan 11 and the air cooling fan 17 are rotated (F-7). As a result, the regenerator 12
Is liquefied, and the liquefied refrigerant flows into the evaporator 10 due to the pressure difference between the condenser 16 and the evaporator 10, and the refrigerant evaporates in the evaporator 10 to remove latent heat of evaporation, thereby blowing air. The fan 11 cools the air sent from the room through the intake duct 4. The cooled air is sent to the indoor unit 2 through the air duct 3,
Is blown out as cold air inside, and the chamber 5 is cooled (F-
8).

In the cooling operation, the refrigerant evaporated and vaporized in the evaporator 10 flows into the absorber 20, where it is absorbed by the absorbing liquid. The diluted absorption liquid whose concentration has been lowered by absorbing the refrigerant once enters the diluted solution tank 21 and is then pumped.
3, heat exchange with the high-concentration, high-concentration absorbent sent out of the regenerator 12 in the heat exchanger 22 through the valve V3,
It is sent to the regenerator 12. This state is the steady mode of operation. During this time, the valve V5 repeatedly opens and closes.

Here, the temperature and pressure of the container, the absorbing liquid, and the refrigerant in each part of the system during the cooling cycle operation are as follows.

Temperature (° C.) Pressure (Torr) Evaporator 10: 10-20 10-20 Regenerator 12: 60-90 90-110 Condenser 16: 50-80 90-110 Absorber 20: 45-50 11 Refrigerant tank 18: 30 to 50 40 to 50 Dilute solution tank 21: 40 to 60 11 Heat exchanger 22: 30 to 90-Intake duct 4: 26 (room temperature)-Blast duct 3: 10 to 15-Dilute solution: 35 -40 concentration: 61% concentrated solution: 90 concentration: 64.8% When the operation button of the remote controller 6 is turned off (F-
9) The blower fan 11 and the air-cooling fan 17 are stopped (F-10), during which the refrigerant in the refrigerant tank 18 and the absorbent in the regenerator 12 all flow into the dilute solution tank 21. This is to prevent the refrigerant tank 18 and the regenerator 12 from being corroded by the absorbing liquid while the apparatus is stopped. The pump 23 stops after a short time delay (F-1).
1) The flow of all liquids in the entire system stops.

The above air conditioner basically controls each container by controlling the temperature of each container, except that the pump 23 is used to send the absorbing liquid from the absorber 20 to the regenerator 12. A pressure difference is created between them, and the refrigerant is sent and circulated by the pressure difference. Therefore, since the refrigerant is also sent from the condenser 16 to the evaporator 10 by the pressure difference, the outlet temperature of the condenser 16 is always constant with respect to the evaporator 10 having a preset pressure (in this embodiment, the outlet temperature is constant). 45 ° C.).

Here, the temperature of the condenser 16 is affected by a change in the amount of refrigerant vapor generated based on a change in the amount of heating in the regenerator 12 and a change in the outside air temperature. For example, if the amount of generated refrigerant vapor increases or the outside air temperature increases, the condenser 16
Therefore, in order to keep the outlet temperature of the condenser 16 constant, the rotation speed of the air-cooling fan 17 must be increased in accordance with the temperature change. Therefore, the outlet temperature of the condenser 16 is always detected by the sensor T6, and the detected temperature is sent to the controller 30,
Controls the rotational speed of the motor M ₁ of the cooling fan 17 as the outlet temperature of the condenser 16 is kept at 45 ° C..

However, when the rotation of the air-cooling fan 17 is controlled based on the outlet temperature of the condenser 16 as described above, there are the following problems (1) and (2).

(1) Since the absorption refrigerator of the air conditioner according to the present invention is installed outside the room, the operation state differs depending on the place where the air conditioner is installed even if the operation is performed under the same conditions. come. In particular, the cooling capacity of the air-cooling fan is greatly affected not only by the outside air temperature but also by the air permeability of the cooling air. For example, if the outdoor unit is installed adjacent to a wall surrounding two sides, the air permeability is impaired. As a result, the air cooling capacity may be significantly reduced as compared with a case where the air cooling capacity is set in a place having good ventilation. That is, even if the outside air temperature and the heating amount in the regenerator 12 are the same, depending on the installation location, the condenser 1
The appropriate number of revolutions of the air-cooling fan for keeping the outlet temperature of No. 6 constant is not always the same. Therefore, in order to detect a case where the cooling capacity of the condenser has decreased even though the capacity of the air cooling fan has not decreased, the data of the appropriate rotation speed of the air cooling fan at the installation location is stored in advance in the memory 32 as comparison data. Need to be kept.

(2) On the other hand, if the rotation speed of the air-cooling fan 17 is simply controlled based only on the outlet temperature of the condenser 16,
Depending on the installation condition of the outdoor unit, the rotation speed may become abnormally high, which may have a significant effect on the life and performance of the device.

Here, the provisional value of the rotation speed of the air cooling fan 17 for keeping the outlet temperature of the condenser 16 at 45 ° C. can be calculated from the outside air temperature and the heating amount in the regenerator 12. The allowable range of the rotation speed of the air-cooling fan 17 with respect to the combination of the heating amount in the regenerator 12 is stored in the memory 32 in advance as a temporary proper rotation speed, and the operation of the air-cooling fan 17 exceeding this range is prevented in advance. Problem (2) can be solved.

[0041] Therefore, first, the memory 32 provided in the controller 30, the combination pattern x _n of the heating amount k _m at ambient temperature t _n and regenerator 12, each provisional adequate rotational speed n _nm advance Remember.

Next, a description will be given of a method of recording data of an appropriate rotation speed corresponding to the above problem (1).

When the air conditioner in which the temporary proper number of revolutions is stored in advance is started for the first time after installation, the air conditioner is controlled for the combination x _{ab of} the outside air temperature t _a detected by the sensor T5 and the heating amount k _b in the regenerator 12 at the time of start. Then, the actual rotation speed N _ab of the air-cooling fan for keeping the outlet temperature of the condenser 16 detected by the sensor T6 at 45 ° C. is detected, and is set as the proper rotation speed instead of the tentative proper rotation speed n _ab for x _ab . Memory 3
Store it in 2. Further, the values of the proper rotation speed in all the other combinations of patterns are calculated from the numerical values obtained here, and stored in the memory 32 as the proper rotation speed instead of the temporary proper rotation speed. Thereby, the data of the appropriate rotation speed of the air-cooling fan 17 with respect to the outside air temperature at the time of starting and the heating amount in the regenerator 12 is stored in the memory 32. Each time the air conditioner is installed for a certain period (for example, 10 days), the actual number of rotations of the air-cooling fan 17 for keeping the outlet temperature of the condenser 16 at 45 ° C. is detected every time the device is started. If the appropriate number of revolutions is determined based on this, more accurate data of the appropriate number of revolutions can be obtained.

Next, a warning operation when the cooling capacity of the condenser 16 is reduced will be described with reference to FIG.

After the data accumulation period for the appropriate number of revolutions ends, each time the air conditioner is started thereafter, the air cooling fan 1
7 is driven (P-1), the outlet temperature of the condenser 16 is detected by the sensor T6, and the rotation of the air-cooling fan 17 is controlled by the controller 30 so as to maintain the outlet temperature of the condenser 16 at 45 ° C. (P-2). ). Further, the actual rotation speed of the air cooling fan 17 for keeping the outlet temperature of the condenser 16 at 45 ° C. is detected and stored in the memory 32 (P-3). Further, the appropriate rotation speed stored in the memory 32 for the combination of the outside air temperature detected at the time of startup and the heating amount in the regenerator 12 is read (P-4), and the difference from the actual rotation speed is obtained. Is calculated, and the increase rate is stored in the memory 32 in chronological order as rotation speed fluctuation data (P-5). If the air cooling capacity of the condenser 16 is reduced due to clogging of the cooling fins of the condenser 16 as the service period of the air conditioner is prolonged, the condenser 16 is not activated at the time of startup.
The actual rotation speed of the air-cooling fan 17 for maintaining the outlet temperature at 45 ° C. gradually increases from the stored proper rotation speed. A predetermined value is previously stored in the memory 32 for the increase rate of the rotation speed. The fluctuation data of the rotation speed stored in the memory 32 during the operation, that is, the rate of increase of the rotation speed is compared with this predetermined value (P-6), and when it exceeds the predetermined value, the controller 30 turns on the warning lamp 33. Then, the user is warned of the clogging of the cooling fins, and the inspection and cleaning of the condenser 16 are encouraged (P-7). In this case, the increase gradient of the increase rate of the rotational speed is obtained, and a method of warning when the increase gradient is equal to or more than a predetermined value, and an upper limit for a difference between the actual rotational speed and the appropriate rotational speed are determined. A warning may be issued when the value exceeds the upper limit. Note that a buzzer or the like may be used instead of the warning lamp 33.

In the above embodiment, the warning in the method of controlling the rotation of the air-cooling fan based on the outlet temperature of the condenser 16 has been described. However, the warning is made in advance based on the outside air temperature at the time of starting and the heating amount in the regenerator 12. Air cooling fan 1 stored
The method may be such that the initial operation is performed with the provisional proper rotation speed of 7, and the PID control is performed until a cycle can be formed, and the provisional proper rotation speed is rewritten to the proper rotation speed.

[0047]

As described above, the air conditioner according to the present invention can be used in the case where the cooling fins of the condenser are deteriorated over time or clogged due to dirt and the ability to cool the condenser is reduced. Detects from fluctuations in the number of rotations of the air-cooling fan, alerts the user of clogging of the cooling fins, and issues a warning to encourage inspection and cleaning. The phenomenon (flushing) can be prevented in advance, and stable cooling operation of the air conditioner can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of an air conditioner according to the present invention.

FIG. 2 shows a flowchart of an operation operation in a steady mode of the air conditioner according to the present invention.

FIG. 3 is a flowchart showing a warning operation for clogging of a cooling fin of a condenser of an air conditioner according to the present invention.

FIG. 4 is a block diagram of a modification of the air conditioner proposed by the present applicant.

FIG. 5 shows an installation state of the air conditioner shown in FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 outdoor unit 2 indoor unit 3 air duct 4 air intake duct 5 room 6 remote controller 10 evaporator 11 air fan 12 regenerator 13 burner 14 fuel supply pipe 15 fuel supply control valve 16 condenser 17 air cooling fan 18 refrigerant tank 20 absorber 21 Dilute solution tank 30 Controller 31 Communication controller 33 Warning lamp T1, T2, T3, T4, T5, T6 Sensor V1, V2, V3, V4, V5 Valve

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-67966 (JP, A) JP-A-5-164438 (JP, A) JP-A-4-165270 (JP, A) 92063 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F25B 15/00 306 F25B 49/04

Claims (4)

(57) [Claims] 1. An evaporator for evaporating a refrigerant, an absorber for storing an absorbing liquid for absorbing the refrigerant and absorbing the refrigerant vapor evaporated by the evaporator to an absorbing liquid, and a pump for supplying a rare absorbing liquid having absorbed the refrigerant vapor to the pump. A regenerator for sending and heating to generate refrigerant vapor and a concentrated absorbent, and a condenser with cooling fins for condensing the refrigerant vapor generated by the regenerator, wherein the condenser and the absorber Air-cooling is performed by an air-cooling fan, the air in the room to be air-conditioned is directly cooled by evaporating the refrigerant in the evaporator, and the cooled air is blown into the room through a duct to cool the room. In the apparatus, an outside air temperature detecting means for detecting an outside air temperature, an outlet temperature detecting means for detecting a condenser outlet temperature, an air cooling fan rotation speed controlling means for maintaining a condenser outlet temperature at a predetermined temperature, and an air cooling fan Rotation Detection means; first storage means for storing an appropriate number of rotations of the air-cooling fan predetermined so as to keep the outlet temperature of the condenser constant in accordance with the outside air temperature and the heating amount in the regenerator; A second storage unit for storing the actual rotation speed; and a third storage unit for storing, in time series, fluctuation data of the actual rotation speed calculated based on the appropriate rotation speed of the air-cooling fan and the actual rotation speed. An air conditioner comprising: a warning unit that warns of clogging of the cooling fins of the condenser when the rotation speed fluctuation data exceeds a certain value. 2. The method according to claim 1, wherein the third storage means calculates an increase rate of the rotation speed from a difference between an appropriate rotation speed of the air-cooling fan for maintaining the outlet temperature of the condenser constant and an actual rotation speed. The air conditioner according to claim 1, wherein the air conditioner is a storage unit that stores the data sequentially, and the warning unit is a warning unit that warns when the increase ratio is equal to or more than a predetermined value. 3. The storage means for storing, in chronological order, a difference between an appropriate rotation speed and an actual rotation speed of an air-cooling fan for maintaining a constant outlet temperature of a condenser. The air conditioner according to claim 1, wherein the warning means is a warning means for warning when the difference is equal to or more than a predetermined value. 4. The first storage means according to claim 1, wherein the predetermined appropriate rotational speed preset for the outside air temperature and the heating amount in the regenerator is replaced with an appropriate rotational speed corresponding to an actual installation location of the air conditioner. The air conditioner according to claim 1, wherein the air conditioner is storage means for storing.