WO2022210746A1 - 空調システム、空調システムの制御方法、および、空調システムの制御プログラム - Google Patents
空調システム、空調システムの制御方法、および、空調システムの制御プログラム Download PDFInfo
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- WO2022210746A1 WO2022210746A1 PCT/JP2022/015604 JP2022015604W WO2022210746A1 WO 2022210746 A1 WO2022210746 A1 WO 2022210746A1 JP 2022015604 W JP2022015604 W JP 2022015604W WO 2022210746 A1 WO2022210746 A1 WO 2022210746A1
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- Prior art keywords
- air
- indoor
- humidity
- dew condensation
- heat exchange
- Prior art date
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000005494 condensation Effects 0.000 claims abstract description 128
- 238000009833 condensation Methods 0.000 claims abstract description 128
- 230000001629 suppression Effects 0.000 claims abstract description 86
- 238000009423 ventilation Methods 0.000 claims abstract description 76
- 238000007791 dehumidification Methods 0.000 claims abstract description 30
- 230000003213 activating effect Effects 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 description 14
- 238000001816 cooling Methods 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000010365 information processing Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
- F24F2110/22—Humidity of the outside air
Definitions
- the present disclosure relates to an air conditioning system, an air conditioning system control method, and an air conditioning system control program.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2011-144995 discloses a heat exchange ventilator that performs general ventilation by total heat exchange ventilation.
- This heat exchange ventilator includes a heat exchanger, a body frame that supports the heat exchanger, and a liquid receiving member that is installed below the heat exchanger within the body frame.
- water adhering to the heat exchanger due to dew condensation drips toward the liquid receiving member.
- An object of the present disclosure is to provide an air-conditioning system, a control method for the air-conditioning system, and a control program for the air-conditioning system that can suppress the occurrence of condensation on the heat exchange elements of the ventilation unit.
- the air conditioning system of the present disclosure includes an indoor unit including an indoor heat exchanger, a ventilation unit including a heat exchange element that exchanges heat between indoor air and outdoor air, and detects the humidity of the air directed to the heat exchange element. a humidity sensor, wherein the indoor unit performs a first dehumidifying operation started based on a start instruction from a user, and a second dehumidifying operation as a dew condensation suppression operation executed to suppress dew condensation on the heat exchange element.
- the indoor unit controls the humidity of the air in the room to be less than a first threshold during the first dehumidification operation, and the humidity of the air in the room is higher than the first threshold
- the second dehumidifying operation is performed so that the humidity of the air in the room is less than the second threshold when the humidity is equal to or higher than the second threshold.
- the 2 Dehumidifying operation may be performed. According to this air conditioning system, the occurrence of dew condensation on the heat exchange element of the ventilation unit can be suppressed more favorably.
- the indoor unit performs the second dehumidifying operation when the indoor air humidity is equal to or higher than the second threshold value and the continuous operation time of the ventilation unit is equal to or longer than a first predetermined time. You may According to this air conditioning system, the occurrence of dew condensation on the heat exchange element of the ventilation unit can be suppressed more favorably.
- the air conditioning system of the present disclosure includes an indoor unit including an indoor heat exchanger, a ventilation unit including a heat exchange element that exchanges heat between indoor air and outdoor air, and detects the humidity of the air directed to the heat exchange element. and a humidity sensor, wherein the indoor unit is configured to perform a second dehumidification operation as a dew condensation suppression operation that is performed to suppress dew condensation on the heat exchange element, and the dew condensation suppression operation includes: It is an operation using an indoor heat exchanger as an evaporator, and when the operation start condition of the indoor unit is satisfied when the operation of the indoor unit is in a stopped state, the indoor unit is started and the condensation is prevented.
- a restrained operation is started, and the operation start condition includes at least one of a condition regarding the humidity of the indoor air and a condition regarding the humidity of the outdoor air.
- the air conditioning system it is possible to suppress the occurrence of dew condensation on the heat exchange element of the ventilation unit.
- the operation start condition may include both a condition related to the humidity of the indoor air and a condition related to the humidity of the outdoor air. According to this air conditioning system, the occurrence of dew condensation on the heat exchange element of the ventilation unit can be suppressed more favorably.
- the operation start condition may further include a condition regarding the continuous operation time of the ventilation unit. According to this air conditioning system, the occurrence of dew condensation on the heat exchange element of the ventilation unit can be suppressed more favorably.
- the dew condensation suppression operation when the indoor unit is executing the dew condensation suppression operation, the time during which the indoor air humidity is less than the operation stop threshold has continued for a second predetermined time. or when the duration of the dew condensation suppression operation reaches a third predetermined time, the dew condensation suppression operation may be stopped. According to this air conditioning system, the power consumption of the indoor units can be reduced.
- the ventilation unit includes an air supply fan that supplies air to the room and an exhaust fan that exhausts air from the room, and the air supply fan and the exhaust fan are arranged so that the indoor unit When the dew condensation suppression operation is being performed, control may be performed such that the exhaust air volume is greater than the supply air volume. According to this air conditioning system, the occurrence of dew condensation on the heat exchange element of the ventilation unit can be suppressed more favorably.
- the exhaust fan when the indoor unit is executing the dew condensation suppression operation, the exhaust fan may be controlled to be driven while the air supply fan is stopped. According to this air conditioning system, the power consumption of the ventilation unit can be reduced.
- a control method for an air conditioning system of the present disclosure includes an indoor unit including an indoor heat exchanger, a ventilation unit including a heat exchange element that exchanges heat between indoor air and outdoor air, and the humidity of the air directed to the heat exchange element. and a humidity sensor that detects a humidity sensor, wherein the indoor unit performs a first dehumidification operation that is started based on a start instruction from a user, and a first dehumidification operation that is performed to suppress dew condensation on the heat exchange element. and a second dehumidification operation as a dew condensation suppression operation, and causing the indoor unit to perform the first dehumidification operation so that the humidity of the air in the room is less than the first threshold value.
- a control program for an air conditioning system of the present disclosure includes an indoor unit including an indoor heat exchanger, a ventilation unit including a heat exchange element that exchanges heat between indoor air and outdoor air, and the humidity of the air directed to the heat exchange element.
- a control program for an air conditioning system comprising: a humidity sensor that detects a first dehumidification operation that the indoor unit starts based on a start instruction from a user; and a second dehumidification operation as a dew condensation suppression operation, wherein the indoor unit performs the first dehumidification operation so that the humidity of the air in the room is less than the first threshold value; and performing the second dehumidifying operation on the indoor unit so that the humidity of the indoor air is less than the second threshold when the humidity of the air in the room is equal to or higher than a second threshold higher than the first threshold.
- the computer is caused to execute the process to be executed. According to this air conditioning system control program, it is possible to suppress the occurrence of dew condensation on the heat exchange element of the ventilation unit.
- a control method for an air conditioning system of the present disclosure includes an indoor unit including an indoor heat exchanger, a ventilation unit including a heat exchange element that exchanges heat between indoor air and outdoor air, and the humidity of the air directed to the heat exchange element. and a humidity sensor for detecting the indoor unit, wherein the indoor unit is configured to perform a second dehumidifying operation as a dew condensation suppression operation performed to suppress dew condensation on the heat exchange element.
- the dew condensation suppression operation is an operation using the indoor heat exchanger as an evaporator, and when the operation start condition of the indoor unit is satisfied when the operation of the indoor unit is stopped , starting the indoor unit to cause the indoor unit to start the dew condensation suppression operation, wherein the operation start condition is at least a condition related to the humidity of the indoor air and a condition related to the humidity of the outdoor air including one.
- the operation start condition is at least a condition related to the humidity of the indoor air and a condition related to the humidity of the outdoor air including one.
- a control program for an air conditioning system of the present disclosure includes an indoor unit including an indoor heat exchanger, a ventilation unit including a heat exchange element that exchanges heat between indoor air and outdoor air, and the humidity of the air directed to the heat exchange element. and a humidity sensor for detecting the indoor unit, wherein the indoor unit is configured to perform a second dehumidification operation as a dew condensation suppression operation performed to suppress dew condensation on the heat exchange element.
- the dew condensation suppression operation is an operation using the indoor heat exchanger as an evaporator, and when the operation start condition of the indoor unit is satisfied when the operation of the indoor unit is stopped , causing a computer to execute processing for activating the indoor unit and causing the indoor unit to start the dew condensation suppression operation, wherein the operation start conditions are a condition related to the humidity of the indoor air and the outdoor air including at least one of the humidity conditions of According to this air conditioning system control program, it is possible to suppress the occurrence of dew condensation on the heat exchange element of the ventilation unit.
- FIG. 4 is a flowchart showing an example of a procedure of dew condensation suppression control
- 5 is a flow chart showing an example of a processing procedure of fan drive control
- FIG. 1 is a diagram showing a schematic configuration of an air conditioning system 10 of this embodiment.
- the air conditioning system 10 is applied to any building.
- a building is, for example, an individual house, an apartment complex, or a commercial establishment.
- Air conditioning system 10 includes an air conditioner 20 and a ventilation unit 50 .
- Air conditioner 20 includes an indoor unit 30 and an outdoor unit 40 .
- the indoor unit 30 is installed, for example, in the ceiling of the building.
- the outdoor unit 40 is installed outdoors.
- the ventilation unit 50 is installed, for example, in the ceiling of the building.
- the ventilation unit 50 performs general ventilation, for example.
- the indoor unit 30 and the outdoor unit 40 constitute a refrigerant circuit RC.
- the indoor unit 30 includes an indoor heat exchanger 31, an indoor fan 32, a temperature sensor 33, a humidity sensor 34, an electric expansion valve 35, and a control device 36.
- Indoor heat exchanger 31, indoor fan 32, temperature sensor 33, humidity sensor 34, and electric expansion valve 35 are housed in housing 30A.
- the indoor heat exchanger 31 is used for heat exchange between indoor air and refrigerant.
- the indoor heat exchanger 31 functions as a refrigerant evaporator or condenser.
- the indoor fan 32 supplies indoor air to the indoor heat exchanger 31 .
- the temperature sensor 33 detects the indoor temperature.
- Humidity sensor 34 detects the humidity of the indoor air.
- the humidity of the air detected by the humidity sensor 34 includes the humidity of the air going to the heat exchange element 54 of the ventilation unit 50 .
- the electric expansion valve 35 reduces the pressure of the refrigerant.
- the control device 36 includes a CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read Only Memory), etc., and controls components such as the indoor fan 32 according to information processing.
- the control device 36 is communicably connected to the control device 48 of the outdoor unit 40 and the control device 55 of the ventilation unit 50 .
- the form of communication between the control device 36 and the control devices 48 and 55 is wireless communication or wired communication.
- the control device 36 forms part of a system control section 70 (see FIG. 2).
- the outdoor unit 40 includes a compressor 41, a four-way switching valve 42, an outdoor heat exchanger 43, an accumulator 44, an outdoor fan 45, a temperature sensor 46, a humidity sensor 47, and a controller 48.
- the compressor 41 compresses the refrigerant.
- the outdoor heat exchanger 43 is used for heat exchange between the outdoor air and the refrigerant.
- the outdoor heat exchanger 43 functions as a refrigerant evaporator or condenser.
- the outdoor fan 45 supplies outdoor air to the outdoor heat exchanger 43 .
- the four-way switching valve 42 switches between the cooling cycle state and the heating cycle state in the refrigerant circuit RC.
- the outdoor heat exchanger 43 functions as a condenser
- the indoor heat exchanger 31 functions as an evaporator.
- the outdoor heat exchanger 43 functions as an evaporator
- the indoor heat exchanger 31 functions as a condenser.
- the accumulator 44 separates the refrigerant liquid mixed in the vapor produced by the evaporator.
- a temperature sensor 46 detects the outdoor temperature.
- a humidity sensor 47 detects the humidity of outdoor air. The humidity of the air detected by the humidity sensor 47 includes the humidity of the air going to the heat exchange element 54 of the ventilation unit 50 .
- the control device 48 includes a CPU, RAM, ROM, etc., and controls components such as the compressor 41, the four-way switching valve 42, and the outdoor fan 45 according to information processing.
- the control device 48 forms part of a system control section 70 (see FIG. 2).
- the indoor heat exchanger 31, the compressor 41, the four-way switching valve 42, the outdoor heat exchanger 43, the electric expansion valve 35, and the accumulator 44 are annularly connected to form a refrigerant circuit RC. is configured.
- the ventilation unit 50 includes a housing 51 , an air supply fan 52 , an exhaust fan 53 , a heat exchange element 54 , a control device 55 , a storage device 56 and a remote control 57 .
- the housing 51 is, for example, box-shaped and accommodates an air supply fan 52, an exhaust fan 53, and a heat exchange element 54.
- the housing 51 includes an outside air intake port 51A, an indoor air supply port 51B, an exhaust air intake port 51C, and an exhaust air outlet 51D.
- Air flowing into the housing 51 from the outside passes through the outside air intake port 51A.
- An intake pipe 81 for taking in outdoor air into the housing 51 is connected to the outside air intake port 51A.
- Air heat-exchanged by the heat exchange element 54 passes through the indoor air supply port 51B.
- a supply pipe 82 for supplying the air heat-exchanged by the heat exchange element 54 into the room is connected to the indoor air supply port 51B.
- the air flowing from the room into the housing 51 passes through the exhaust suction port 51C.
- a suction pipe 83 for taking indoor air into the housing 51 is connected to the exhaust suction port 51C.
- Air heat-exchanged by the heat exchange element 54 passes through the exhaust outlet 51D.
- An exhaust pipe 84 that exhausts the air heat-exchanged by the heat exchange element 54 to the outside of the room is connected to the exhaust outlet 51D.
- the air supply fan 52 is installed near the indoor air supply port 51B. By driving the air supply fan 52, an air flow path is formed in the housing 51 that flows through the outside air intake port 51A, the heat exchange element 54, and the indoor air supply port 51B in this order.
- the exhaust fan 53 is installed near the exhaust outlet 51D. By driving the exhaust fan 53, an air flow path is formed in the housing 51 that flows through the exhaust inlet 51C, the heat exchange element 54, and the exhaust outlet 51D in this order.
- the heat exchange element 54 exchanges the temperature and humidity between the outdoor and the indoor.
- the heat exchange element 54 is, for example, a stationary heat exchange element.
- the heat exchange element 54 is of the cross-flow type.
- the heat exchange element 54 may be of the countercurrent type.
- the control device 55 includes a CPU, RAM, ROM, etc., and controls components such as the air supply fan 52 and the exhaust fan 53 according to information processing.
- the control device 55 measures the continuous operation time, which is the time during which the ventilation unit 50 is continuously operating.
- the control device 55 transmits information on the measured continuous operation time to the control device 36 .
- the storage device 56 is, for example, a non-volatile memory such as EEPROM (Electrically Erasable Programmable Read-Only Memory).
- the storage device 56 is communicably connected to the control device 55 via, for example, a bus.
- the storage device 56 stores control programs.
- a control program consists of one or more programs.
- the control device 55 controls various components by executing a control program.
- the remote controller 57 is installed indoors, for example.
- the user switches between starting and stopping the operation of the ventilation unit 50 by operating the remote controller 57 .
- the user can set the operation time of the ventilation unit 50 by operating the remote controller 57 .
- the air conditioner 20 further includes a remote control 60.
- the user switches the operation mode of the air conditioner 20 by operating the remote controller 60, for example.
- the operation modes of the air conditioner 20 that are switched by the user operating the remote controller 60 include, for example, the cooling operation, the heating operation, and the first dehumidification operation.
- the cooling operation is performed, the indoor temperature drops to the temperature set by the user.
- the heating operation is performed, the indoor temperature rises to the temperature set by the user.
- the first dehumidifying operation the indoor humidity decreases.
- the indoor air humidity is controlled to be less than the first threshold value XA.
- the first threshold XA is a humidity value set so that the user does not feel uncomfortable when spending time indoors.
- the first threshold XA is, for example, 65%.
- the first threshold XA is preferably 55%.
- the first threshold XA is more preferably 45%.
- the operation mode of the air conditioner 20 further includes a second dehumidification operation as a dew condensation suppression operation that is performed to suppress dew condensation on the heat exchange element 54 .
- the system control unit 70 (see FIG. 2) of the air conditioner 20 performs dew condensation suppression control to automatically perform the second dehumidifying operation when the operation start condition is satisfied. Details of the dew condensation suppression control will be described later.
- the 2nd dehumidification operation may be called dew condensation suppression operation.
- the refrigerant circuit RC is in the cooling cycle state when the air conditioner 20 is in the cooling operation, the first dehumidification operation, or the second dehumidification operation.
- the four-way switching valve 42 is in the state indicated by the solid line in FIG.
- the refrigerant discharged by the compressor 41 passes through the four-way switching valve 42, the outdoor heat exchanger 43, the electric expansion valve 35, the indoor heat exchanger 31, the four-way switching valve 42, and the accumulator 44 in this order. flow.
- the refrigerant circuit RC When the air conditioner 20 is in heating operation, the refrigerant circuit RC is in the heating cycle state. In the heating cycle state, the four-way switching valve 42 is in the state indicated by the dashed line in FIG. The refrigerant discharged by the compressor 41 flows through the four-way switching valve 42, the indoor heat exchanger 31, the electric expansion valve 35, the outdoor heat exchanger 43, the four-way switching valve 42, and the accumulator 44 in this order.
- FIG. 2 is a diagram for explaining the outline of the system control unit 70.
- FIG. System controller 70 includes controller 36 and controller 48 .
- the control device 36 acquires the detection results of the temperature sensor 33 and the humidity sensor 34. Controller 36 controls indoor fan 32 and electric expansion valve 35 based on all or part of the detection results of temperature sensor 33 and humidity sensor 34 .
- Control device 36 receives a signal indicating a user's instruction from remote controller 60 .
- the control device 36 transmits to the remote controller 60 a signal for controlling the display state of the screen (not shown) of the remote controller 60 .
- the controller 36 transmits a first signal to the controller 55 (see FIG. 1) when the air conditioner 20 starts the second dehumidifying operation.
- the control device 36 transmits a second signal to the control device 55 when the air conditioner 20 stops the second dehumidifying operation.
- the control device 48 acquires the detection results of the temperature sensor 46 and the humidity sensor 47. Controller 48 controls compressor 41 , four-way switching valve 42 , and outdoor fan 45 based on all or part of the detection results of temperature sensor 46 and humidity sensor 47 .
- the system control unit 70 is communicably connected to the storage device 71 .
- the storage device 71 is configured by, for example, a non-volatile memory such as EEPROM.
- the storage device 71 stores a control program 71A.
- the control program 71A is composed of one or more programs.
- the control device 36 and the control device 48 control various components by executing the control program 71A.
- dew condensation suppression control the system control unit 70 of the air conditioner 20 performs dew condensation suppression operation so that the indoor air humidity becomes less than the second threshold value XB when the operation start condition is satisfied.
- the air conditioner 20 stops the cooling operation and performs the dew condensation suppression operation even when the cooling operation is being performed.
- the air conditioner 20 starts up and performs the dew condensation suppression operation.
- the second threshold XB is a value set to suppress dew condensation on the heat exchange element 54 .
- the second threshold XB is higher than the first threshold XA.
- the second threshold XB is, for example, 90%.
- the second threshold XB is preferably 80%.
- the second threshold XB is more preferably 70%.
- the shutdown state of the air conditioner 20 includes, for example, a state in which the power is turned off due to transmission of a shutdown instruction from the remote controller 60 .
- the shutdown state of the air conditioner 20 includes a state in which the power is on but the compressor 41 is temporarily stopped due to, for example, thermo-off.
- the operation start conditions for the dew condensation suppression operation include indoor air humidity conditions, outdoor air humidity conditions, and continuous operation time of the ventilation unit 50 .
- the indoor air humidity condition is satisfied when the indoor air humidity detected by the humidity sensor 34 is equal to or higher than the second threshold value XB.
- the condition regarding the humidity of the outdoor air is satisfied when the humidity of the indoor air detected by the humidity sensor 47 is equal to or higher than the third threshold value XC.
- the third threshold XC is higher than the first threshold XA.
- the third threshold XC may be the same as or different from the second threshold XB. Even if the humidity of the indoor air is high, dew condensation is less likely to occur on the heat exchange element 54 when the humidity of the outdoor air is low.
- the condition regarding the continuous operation time of the ventilation unit 50 is satisfied when the continuous operation time of the ventilation unit 50 measured by the control device 55 is equal to or longer than the first predetermined time TA.
- the first predetermined time TA is a time during which dew condensation is expected to occur on the heat exchange element 54 .
- the first predetermined time TA is, for example, 48 hours.
- the air conditioner 20 stops the dew condensation suppression operation when the operation stop condition is satisfied.
- the operation stop condition is met, for example, when the time period during which the indoor air humidity is less than the operation stop threshold value XZ continues reaches the second predetermined time TB.
- the control device 36 measures the duration of the state in which the indoor air humidity is less than the operation stop threshold value XZ.
- the operation stop threshold XZ is preferably the same value as the second threshold XB or a value lower than the second threshold XB.
- the operation stop threshold XZ may be a value higher than the second threshold XB.
- the second predetermined time TB is a time during which it is considered that the dew condensation on the heat exchange element 54 is suppressed due to the continuation of the low humidity state of the air in the room.
- the second predetermined time TB is, for example, 4 hours.
- the air conditioning system 10 When the dew condensation suppression operation is executed in the dew condensation suppression control, the air conditioning system 10 notifies that the dew condensation suppression operation has been executed.
- the timing for notifying that the dew condensation suppression operation has been performed is when the dew condensation suppression operation is started, during the dew condensation suppression operation is being performed, or when the dew condensation suppression operation is stopped.
- the air conditioning system 10 notifies that the dew condensation suppression operation has been performed, for example, by turning on a lamp provided in the indoor unit 30 .
- the air conditioning system 10 may notify that the dew condensation suppression operation has been performed, for example, by turning on a lamp provided in the housing 51 of the ventilation unit 50 .
- the air-conditioning system 10 may notify that the dew condensation suppression operation has been performed by transmitting information to the user's portable terminal.
- the air conditioning system 10 may notify that the dew condensation suppression operation has been performed by transmitting information to at least one of the remote controller 57 of the ventilation unit 50 and the remote controller 60 of the air conditioner 20 .
- the air conditioner 20 is in a shutdown state, there is a high possibility that no user is present in the room. Therefore, when the air-conditioning system 10 is started from a shutdown state and performs dew condensation suppression operation, it is preferable to notify that the dew condensation suppression operation has been performed by transmitting information to the user's portable terminal.
- the control device 55 of the ventilation unit 50 executes fan drive control in parallel with the dew condensation suppression control executed by the system control unit 70 of the air conditioner 20 .
- the control device 55 controls the air supply fan 52 and the exhaust air so that the amount of air exhausted from the room is larger than the amount of air supplied to the room. Control the fan 53 .
- the control device 55 receives the first signal, for example, the control device 55 stops the air supply fan 52 and drives the exhaust fan 53 so that the rotation speed becomes higher than before the first signal is received.
- control device 55 When the control device 55 receives the first signal, for example, the control device 55 may stop the air supply fan 52 and drive the exhaust fan 53 so that the rotation speed before receiving the first signal is maintained. When receiving the second signal, control device 55 restores the drive state of air supply fan 52 and exhaust fan 53 to the state before receiving the first signal.
- the system control unit 70 repeatedly executes dew condensation suppression control, for example, at predetermined time intervals regardless of whether the air conditioner 20 is in operation.
- step S11 the control device 36 determines whether or not the indoor air humidity is equal to or higher than the second threshold value XB. If the determination in step S11 is affirmative, the control device 36 executes the process of step S12. If the determination in step S11 is negative, the control device 36 executes the process of step S11 again.
- step S12 the control device 36 determines whether or not the humidity of the outdoor air is equal to or higher than the third threshold value XC. If the determination in step S12 is affirmative, the system control unit 70 executes the process of step S13. If the determination in step S13 is negative, the system control unit 70 executes the process of step S11 again.
- step S13 the control device 36 determines whether or not the continuous operation time of the ventilation unit 50 is equal to or longer than the first predetermined time TA based on the signal transmitted from the control device 55. If the determination in step S13 is affirmative, the control device 36 executes the process of step S14. If the determination in step S13 is negative, the control device 36 executes the process of step S11 again.
- step S14 the system control unit 70 executes dew condensation suppression operation. Controller 36 sends a first signal to controller 55 of ventilation unit 50 . In step S15, the control device 36 notifies the user that the dew condensation suppression operation has been performed.
- step S16 the control device 36 determines whether the time during which the indoor air humidity is less than the operation stop threshold XZ has reached the second predetermined time TB. If the determination in step S16 is affirmative, the control device 36 executes the process of step S17. If the determination in step S16 is negative, the control device 36 executes the process of step S16 again.
- step S17 the system control unit 70 stops the dew condensation suppression operation. Controller 36 transmits a second signal to controller 55 .
- the control device 55 always executes fan drive control, for example, during operation of the ventilation unit 50 .
- the control device 55 starts fan drive control when an operation start instruction is transmitted from the remote controller 57, for example.
- the control device 55 terminates the fan drive control when, for example, the remote controller 57 transmits an operation stop instruction.
- step S21 the control device 55 drives the air supply fan 52 and the exhaust fan 53 so that the rotation speed is preset for ventilation.
- step S22 the control device 55 determines whether or not the first signal has been received, that is, whether or not the air conditioner 20 has started the second dehumidifying operation. If the determination in step S22 is affirmative, the control device 55 executes the process of step S23. If the determination in step S22 is negative, the control device 55 executes the process of step S22 again. In step S23, the control device 55 stops the air supply fan 52.
- step S24 the control device 55 determines whether or not the second signal has been received, that is, whether or not the air conditioner 20 has stopped the second dehumidifying operation. If the determination in step S24 is affirmative, the control device 55 executes the process of step S25. If the determination in step S25 is negative, the control device 55 executes the process of step S24 again.
- step S25 the control device 55 restores the drive state of the air supply fan 52 and the exhaust fan 53 to the state before the first signal was received.
- step S26 the control device 55 determines whether or not an operation stop instruction transmitted from the remote controller 57 has been received. If the determination in step S26 is affirmative, the control device 55 ends the fan drive control. If the determination in step S26 is negative, the control device 55 executes the process of step S22 again.
- the air conditioner 20 performs dew condensation suppression operation when the operation start condition is satisfied. Therefore, the humidity of the air in the room is lowered. Since the ventilation unit 50 takes in dry air from the room, condensation on the heat exchange element 54 is suppressed.
- the operation start conditions include both the indoor air humidity condition and the outdoor air humidity condition, the occurrence of dew condensation on the heat exchange element 54 can be more preferably suppressed. .
- the operation start condition includes the condition regarding the continuous operation time of the ventilation unit 50, so that the occurrence of dew condensation on the heat exchange element 54 can be suppressed more appropriately.
- the air conditioner 20 stops dew condensation suppression operation when the operation stop condition is satisfied. Therefore, the power consumption of the air conditioner 20 can be reduced.
- the controller 55 When the controller 55 receives the first signal transmitted from the controller 36, the controller 55 controls the air supply fan 52 and the exhaust fan 53 so that the amount of exhaust air from the room is greater than the amount of air supplied to the room. . Therefore, the occurrence of dew condensation on the heat exchange element 54 can be more preferably suppressed.
- the ventilation unit 50 stops the air supply fan 52 when receiving the first signal in fan drive control. Therefore, power consumption of the ventilation unit 50 can be reduced.
- the air conditioning system 10 When the dew condensation suppression operation is executed in the dew condensation suppression control, the air conditioning system 10 notifies that the dew condensation suppression operation has been executed. Therefore, convenience is enhanced.
- the air conditioner 20 performs the dew condensation suppression operation in a situation where dew condensation may occur on the heat exchange element 54, so the ventilation unit 50 can be maintained in operation. Since the indoor ventilation can be continuously performed, the indoor air can be kept in a sanitary condition.
- the above-described embodiments are examples of possible forms of the air conditioning system, air conditioning system control method, and air conditioning system control program related to the present disclosure, and are not intended to limit the forms.
- the air-conditioning system, the control method of the air-conditioning system, and the control program for the air-conditioning system related to the present disclosure may take forms different from those exemplified in the embodiments.
- One example is a form in which part of the configuration of the embodiment is replaced, changed, or omitted, or a form in which a new configuration is added to the embodiment.
- the indoor air humidity was detected by the humidity sensor 34 of the indoor unit 30, but the method for detecting the indoor air humidity can be changed arbitrarily.
- the indoor air humidity may be detected by a humidity sensor installed in the vicinity of the exhaust air inlet 51 ⁇ /b>C within the housing 51 of the ventilation unit 50 .
- the humidity of the indoor air may be detected by a humidity sensor installed anywhere in the room.
- the humidity sensor transmits the detection result to the control device 36, for example, every predetermined time.
- the humidity of the outdoor air is detected by the humidity sensor 47 of the outdoor unit 40, but the method of detecting the humidity of the outdoor air can be changed arbitrarily.
- the humidity of the outdoor air may be detected by a humidity sensor installed in the vicinity of the outside air intake port 51A inside the housing 51 of the ventilation unit 50 .
- the humidity of outdoor air may be detected by a humidity sensor installed at any location outdoors.
- the conditions for starting operation in the dew condensation suppression control include conditions regarding the humidity of the indoor air, conditions regarding the humidity of the outdoor air, and conditions regarding the continuous operation time of the ventilation unit 50 .
- the operation start condition may include only the condition regarding the humidity of the outdoor air.
- steps S11 and S13 shown in FIG. 3 are omitted in the dew condensation suppression control.
- the operation start condition may include only the condition regarding the humidity of the indoor air or the condition regarding the humidity of the outdoor air.
- step S11 or step S12 and step S13 shown in FIG. 3 are omitted in the dew condensation suppression control.
- the indoor air humidity condition in the operation start condition can be changed arbitrarily.
- the indoor air humidity condition may be satisfied, for example, when the indoor air humidity detected by the humidity sensor 34 is equal to or higher than the fourth threshold value XD.
- the fourth threshold value XD is, for example, a value determined based on the room temperature and the continuous operating time of the ventilation unit 50 .
- the fourth threshold value XD has a lower value as the room temperature increases.
- the fourth threshold value XD has a lower value as the continuous operation time of the ventilation unit 50 increases.
- the control device 36 updates the fourth threshold XD as needed based on a predetermined relational expression including the indoor temperature and the continuous operation time of the ventilation unit 50 as parameters.
- the control device 36 executes the process of step S11 of dew condensation suppression control based on the fourth threshold value XD.
- the shutdown condition can be changed arbitrarily.
- the operation stop condition may be satisfied, for example, when the duration of the dew condensation suppression operation of the air conditioner 20 reaches the third predetermined time TC.
- the third predetermined time TC is the time during which the indoor air humidity is expected to decrease to such an extent that the occurrence of dew condensation on the heat exchange element 54 can be suppressed.
- the operation modes of the air conditioner 20 include the cooling operation, the heating operation, the first dehumidification operation, and the dew condensation suppression operation, but at least one of the heating operation and the first dehumidification operation can be omitted.
- control device 36 notifies that the dew condensation suppression operation has been executed, but may notify that the dew condensation suppression operation has ended.
- ⁇ 6-8> The ventilation unit 50 stopped driving the air supply fan 52 in step S22 of the fan drive control, but continues to operate the air supply fan 52 so that the rotation speed of the air supply fan 52 is lower than the rotation speed of the exhaust fan 53. You can drive.
- the shape of the indoor unit 30 is not limited.
- the indoor unit 30 may be, for example, a ceiling-suspended type or a wall-mounted type.
- the shape of the ventilation unit 50 is not limited.
- the ventilation unit 50 may be, for example, a ceiling-suspended type or an exposed installation type installed at an arbitrary location in the room.
- the air conditioner 20 includes one indoor unit 30 and one outdoor unit 40 .
- the number of indoor units 30 and outdoor units 40 included in the air conditioner 20 is not limited to this.
- the air conditioner 20 may include, for example, one outdoor unit 40 and multiple indoor units 30 .
- Air conditioning system 30 Indoor unit 31: Indoor heat exchanger 34: Humidity sensor 47: Humidity sensor 50: Ventilation unit 52: Air supply fan 53: Exhaust fan 54: Heat exchange element 71A: Control program
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Abstract
Description
図1は、本実施形態の空調システム10の概略構成を示す図である。空調システム10は、任意の建築物に適用される。建築物は、例えば、個別住宅、集合住宅、または、商業用施設である。空調システム10は、空気調和装置20と、換気ユニット50とを含む。空気調和装置20は、室内機30と、室外機40とを含む。室内機30は、建築物において、例えば、天井裏に設置される。室外機40は、室外に設置される。換気ユニット50は、建築物において、例えば、天井裏に設置される。換気ユニット50は、例えば、全般換気を実施する。空調システム10においては、室内機30と室外機40とによって冷媒回路RCが構成される。
て制御装置55と通信可能に接続される。記憶装置56は、制御プログラムを記憶する。制御プログラムは、1または複数のプログラムで構成される。制御装置55は、制御プログラムを実行することによって、各種構成要素を制御する。
出された冷媒は、四路切替弁42、室外熱交換器43、電動膨張弁35、室内熱交換器31、四路切替弁42、および、アキュムレータ44の順に流れる。
空気調和装置20のシステム制御部70は、結露抑制制御において、運転開始条件が満たされたときに、室内の空気の湿度が第2閾値XB未満となるように結露抑制運転を実行する。空気調和装置20は、運転開始条件が満たされたとき、冷房運転を実行している場合であっても、冷房運転を停止して、結露抑制運転を実行する。空気調和装置20の運転停止状態である場合に、運転開始条件が満たされたとき、空気調和装置20は、起動して結露抑制運転を実行する。第2閾値XBは、熱交換エレメント54の結露抑制のために設定される値である。第2閾値XBは、第1閾値XAよりも高い。第2閾値XBは、例えば、90%である。第2閾値XBは、好ましくは、80%である。第2閾値XBは、さらに好ましくは、70%である。空気調和装置20の運転停止状態は、例えば、リモコン60から運転停止指示が送信されることによって、電源がオフである状態を含む。別の例では、空気調和装置20の運転停止状態は、電源がオンの状態であるが、例えば、サーモオフによって一時的に圧縮機41の駆動が停止している状態を含む。
換気ユニット50の制御装置55は、空気調和装置20のシステム制御部70が実行する結露抑制制御と並行して、ファン駆動制御を実行する。ファン駆動制御において、制御装置55は、制御装置36から送信される第1信号を受信した場合、室内からの排気風量が室内への給気風量よりも多くなるように、給気ファン52および排気ファン53を制御する。制御装置55は、第1信号を受信した場合、例えば、給気ファン52を停止させ、第1信号を受信する前よりも回転数が高くなるように排気ファン53を駆動する。制御装置55は、第1信号を受信した場合、例えば、給気ファン52を停止させ、第1信号を受信する前の回転数が維持されるように、排気ファン53を駆動してもよい。制御装置55は、第2信号を受信した場合、給気ファン52および排気ファン53の駆動状態を第1信号を受信する前の状態に復帰させる。
図3を参照して、結露抑制制御の処理手順の一例について説明する。システム制御部70は、結露抑制制御を例えば、空気調和装置20が運転しているか否かに関わらず、所定時間毎に繰り返し実行する。
図4を参照して、換気ユニット50の制御装置55が実行するファン駆動制御の処理手順の一例について説明する。制御装置55は、ファン駆動制御を例えば、換気ユニット50の運転中に常に実行する。制御装置55は、例えば、リモコン57から運転開示指示が送信されることによって、ファン駆動制御を開始する。制御装置55は、例えば、リモコン57から運転停止指示が送信されることによって、ファン駆動制御を終了する。
上記実施形態は本開示に関する空調システム、空調システムの制御方法、および、空調システムの制御プログラムが取り得る形態の例示であり、その形態を制限することを意図していない。本開示に関する空調システム、空調システムの制御方法、および、空調システムの制御プログラムは、実施形態に例示された形態とは異なる形態を取り得る。その一例は、実施形態の構成の一部を置換、変更、もしくは、省略した形態、または、実施形態に新たな構成を付加した形態である。以下に実施形態の変形例の幾つかの例を示す。
上記実施形態では、室内の空気の湿度は、室内機30の湿度センサ34によって検出されたが、室内の空気の湿度を検出する方法は、任意に変更可能である。室内の空気の湿度は、換気ユニット50のハウジング51内において、排気吸込口51Cの近傍に設置される湿度センサによって検出されてもよい。別の例では、室内の空気の湿度は、室内の任意の位置に設置される湿度センサによって検出されてもよい。この変形例では、湿度センサは、検出結果を例えば、所定時間毎に制御装置36に送信する。
上記実施形態では、室外の空気の湿度は、室外機40の湿度センサ47によって検出されたが、室外の空気の湿度を検出する方法は、任意に変更可能である。室外の空気の湿度は、換気ユニット50のハウジング51内において、外気吸込口51Aの近傍に設置される湿度センサによって検出されてもよい。別の例では、室外の空気の湿度は、室外の任意の位置に設置される湿度センサによって検出されてもよい。
上記実施形態では、結露抑制制御における運転開始条件は、室内の空気の湿度に関する条件、室外の空気の湿度に関する条件、および、換気ユニット50の連続運転時間に関する条件を含んでいた。運転開始条件は、室外の空気の湿度に関する条件のみを含んでいてもよい。この変形例では、結露抑制制御において、図3に示されるステップS11およびステップS13が省略される。運転開始条件は、室内の空気の湿度に関する条件、または、室外の空気の湿度に関する条件のみを含んでいてもよい。この変形例では、結露抑制制御において、図3に示されるステップS11またはステップS12、および、ステップS13が省略される。
運転開始条件における室内の空気の湿度に関する条件は、任意に変更可能である。室内の空気の湿度に関する条件は、例えば、湿度センサ34によって検出される室内の空気の湿度が第4閾値XD以上である場合に満たされるようにしてもよい。第4閾値XDは、例えば、室内の温度、および、換気ユニット50の連続運転時間に基づいて決められる値である。第4閾値XDは、室内の温度が高い程、低い値である。第4閾値XDは、換気ユニット50の連続運転時間が長い程、低い値である。制御装置36は、室内の温度および換気ユニット50の連続運転時間をパラメータに含む、予め定められる関係式に基づいて、第4閾値XDを随時更新する。制御装置36は、第4閾値XDに基づいて、結露抑制制御のステップS11の処理を実行する。
運転停止条件は、任意に変更可能である。運転停止条件は、例えば、空気調和装置20が結露抑制運転を実行している時間が第3所定時間TCに達したときに満たされるとしてもよい。第3所定時間TCは、室内の空気の湿度が熱交換エレメント54の結露の発生を抑制できる程度まで低下すると予測される時間である。
上記実施形態では、空気調和装置20の運転モードは、冷房運転、暖房運転、第1除湿運転、および、結露抑制運転を含んでいたが、暖房運転および第1除湿運転の少なくとも一方を省略できる。
上記実施形態では、制御装置36は、結露抑制運転が実行されたことを報知したが、結露抑制運転が終了したことを報知してもよい。
換気ユニット50は、ファン駆動制御のステップS22において、給気ファン52の駆動を停止させたが、給気ファン52の回転数が排気ファン53の回転数よりも低くなるように給気ファン52を駆動してもよい。
上記実施形態において、室内機30の形は限定されない。室内機30は、例えば、天井吊下形であってもよいし、壁掛形であってもよい。
上記実施形態において、換気ユニット50の形は限定されない。換気ユニット50は、例えば、天井吊下形であってもよいし、室内の任意の箇所に設置される露出設置形であってもよい。
上記実施形態において、空気調和装置20は、1つの室内機30と、1つの室外機40とを含む。空気調和装置20に含まれる室内機30および室外機40の数はこれに限定されない。空気調和装置20は、例えば、1つの室外機40と、複数の室内機30とを含んでいてもよい。
30:室内機
31:室内熱交換器
34:湿度センサ
47:湿度センサ
50:換気ユニット
52:給気ファン
53:排気ファン
54:熱交換エレメント
71A:制御プログラム
Claims (14)
- 室内熱交換器(31)を含む室内機(30)と、
室内の空気と室外の空気とを熱交換する熱交換エレメント(54)を含む換気ユニット(50)と、
前記熱交換エレメントに向かう空気の湿度を検出する湿度センサ(34、47)と、を備え、
前記室内機は、ユーザからの開始指示に基づいて開始する第1除湿運転と、前記熱交換エレメントの結露抑制のために実行する結露抑制運転としての第2除湿運転とを実行するように構成されており、
前記室内機は、
前記第1除湿運転時に前記室内の空気の湿度を第1閾値未満に制御し、
前記室内の空気の湿度が前記第1閾値よりも高い第2閾値以上である場合に、前記室内の空気の湿度が前記第2閾値未満となるように前記第2除湿運転を実行する、空調システム(10)。 - 前記室内機は、前記室内の空気の湿度が前記第2閾値以上、かつ、前記室外の空気の湿度が前記第1閾値よりも高い第3閾値以上である場合に、前記第2除湿運転を実行する、請求項1に記載の空調システム。
- 前記室内機は、前記室内の空気の湿度が前記第2閾値以上、かつ、前記換気ユニットの連続運転時間が第1所定時間以上である場合に、前記第2除湿運転を実行する、請求項1または2に記載の空調システム。
- 室内熱交換器(31)を含む室内機(30)と、
室内の空気と室外の空気とを熱交換する熱交換エレメント(54)を含む換気ユニット(50)と、
前記熱交換エレメントに向かう空気の湿度を検出する湿度センサ(34、37)と、を備え、
前記室内機は、前記熱交換エレメントの結露抑制のために実行する結露抑制運転としての第2除湿運転を実行するように構成されており、
前記結露抑制運転は、前記室内熱交換器を蒸発器として利用する運転であり、
前記室内機の運転が停止状態である場合に前記室内機の運転開始条件が満たされたときは、前記室内機は、起動して前記結露抑制運転を開始し、
前記運転開始条件は、前記室内の空気の湿度に関する条件、および、前記室外の空気の湿度に関する条件の少なくとも一方を含む、空調システム(10)。 - 前記運転開始条件は、前記室内の空気の湿度に関する条件、および、前記室外の空気の湿度に関する条件の両方を含む、請求項4に記載の空調システム。
- 前記運転開始条件は、前記換気ユニットの連続運転時間に関する条件をさらに含む、請求項4または5に記載の空調システム。
- 前記室内機は、前記結露抑制運転を実行している場合に、前記室内の空気の湿度が運転停止閾値未満である状態が継続している時間が第2所定時間に達したとき、または、前記結露抑制運転を実行している時間が第3所定時間に達したときは、前記結露抑制運転を停止する、請求項1または4に記載の空調システム。
- 前記換気ユニットは、前記室内に空気を供給する給気ファン(52)、および、前記室内から空気を排出する排気ファン(53)を含み、
前記給気ファンおよび前記排気ファンは、前記室内機が前記結露抑制運転を実行している場合に、給気風量よりも排気風量が多くなるように制御される、請求項1または4のいずれか一項に記載の空調システム。 - 前記室内機が前記結露抑制運転を実行している場合に、前記給気ファンが停止した状態で前記排気ファンが駆動するように制御される、請求項8に記載の空調システム。
- 前記室内機によって前記結露抑制運転が実行された場合に、前記結露抑制運転が実行されたことを報知する、請求項1または4に記載の空調システム。
- 室内熱交換器(31)を含む室内機(30)と、室内の空気と室外の空気とを熱交換する熱交換エレメント(54)を含む換気ユニット(50)と、前記熱交換エレメントに向かう空気の湿度を検出する湿度センサ(34、47)と、を備える空調システム(10)の制御方法であって、
前記室内機は、ユーザからの開始指示に基づいて開始する第1除湿運転と、前記熱交換エレメントの結露抑制のために実行する結露抑制運転としての第2除湿運転とを実行するように構成されており、
前記室内の空気の湿度が第1閾値未満となるように前記第1除湿運転を前記室内機に実行させることと、
前記室内の空気の湿度が前記第1閾値よりも高い第2閾値以上である場合に、前記室内の空気の湿度が前記第2閾値未満となるように前記第2除湿運転を前記室内機に実行させることと、を含む空調システムの制御方法。 - 室内熱交換器(31)を含む室内機(30)と、室内の空気と室外の空気とを熱交換する熱交換エレメント(54)を含む換気ユニット(50)と、前記熱交換エレメントに向かう空気の湿度を検出する湿度センサ(34、47)と、を備える空調システム(10)の制御プログラムであって、
前記室内機は、ユーザからの開始指示に基づいて開始する第1除湿運転と、前記熱交換エレメントの結露抑制のために実行する結露抑制運転としての第2除湿運転とを実行するように構成されており、
前記室内の空気の湿度が第1閾値未満となるように前記第1除湿運転を前記室内機に実行させる処理と、
前記室内の空気の湿度が前記第1閾値よりも高い第2閾値以上である場合に、前記室内の空気の湿度が前記第2閾値未満となるように前記第2除湿運転を前記室内機に実行させる処理とをコンピュータに実行させる、空調システムの制御プログラム。 - 室内熱交換器(31)を含む室内機(30)と、室内の空気と室外の空気とを熱交換する熱交換エレメント(54)を含む換気ユニット(50)と、前記熱交換エレメントに向かう空気の湿度を検出する湿度センサ(34、47)と、を備える空調システム(10)の制御方法であって、
前記室内機は、前記熱交換エレメントの結露抑制のために実行する結露抑制運転としての第2除湿運転を実行するように構成されており、
前記結露抑制運転は、前記室内熱交換器を蒸発器として利用する運転であり、
前記室内機の運転が停止状態である場合に前記室内機の運転開始条件が満たされたときは、前記室内機を起動して前記室内機に前記結露抑制運転を開始させることを含み、
前記運転開始条件は、前記室内の空気の湿度に関する条件、および、前記室外の空気の湿度に関する条件の少なくとも一方を含む、空調システムの制御方法。 - 室内熱交換器(31)を含む室内機(30)と、室内の空気と室外の空気とを熱交換する熱交換エレメント(54)を含む換気ユニット(50)と、前記熱交換エレメントに向かう空気の湿度を検出する湿度センサ(34、47)と、を備える空調システム(10)の制御プログラムであって、
前記室内機は、前記熱交換エレメントの結露抑制のために実行する結露抑制運転としての第2除湿運転を実行するように構成されており、
前記結露抑制運転は、前記室内熱交換器を蒸発器として利用する運転であり、
前記室内機の運転が停止状態である場合に前記室内機の運転開始条件が満たされたときは、前記室内機を起動して前記室内機に前記結露抑制運転を開始させる処理をコンピュータに実行させることを含み、
前記運転開始条件は、前記室内の空気の湿度に関する条件、および、前記室外の空気の湿度に関する条件の少なくとも一方を含む、空調システムの制御プログラム。
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JPH0727399A (ja) * | 1993-07-14 | 1995-01-27 | Matsushita Electric Ind Co Ltd | 除加湿装置 |
JPH09210428A (ja) * | 1996-02-01 | 1997-08-12 | Sharp Corp | 空気調和機 |
JP2001235211A (ja) * | 2000-02-22 | 2001-08-31 | Daikin Ind Ltd | 空気調和機 |
JP2002317990A (ja) * | 2001-04-18 | 2002-10-31 | Daikin Ind Ltd | 調湿換気装置 |
JP2008151458A (ja) * | 2006-12-19 | 2008-07-03 | Chofu Seisakusho Co Ltd | デシカント空調機及びその防露装置 |
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JPH0727399A (ja) * | 1993-07-14 | 1995-01-27 | Matsushita Electric Ind Co Ltd | 除加湿装置 |
JPH09210428A (ja) * | 1996-02-01 | 1997-08-12 | Sharp Corp | 空気調和機 |
JP2001235211A (ja) * | 2000-02-22 | 2001-08-31 | Daikin Ind Ltd | 空気調和機 |
JP2002317990A (ja) * | 2001-04-18 | 2002-10-31 | Daikin Ind Ltd | 調湿換気装置 |
JP2008151458A (ja) * | 2006-12-19 | 2008-07-03 | Chofu Seisakusho Co Ltd | デシカント空調機及びその防露装置 |
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