JP6006593B2 - Air conditioning control system and air conditioning control method - Google Patents

Description

  The present invention relates to an air conditioning control system and an air conditioning control method using an air conditioner that supplies conditioned air to a control target space, and a ventilator that ventilates return air from the control target space and outside air. .

  Small and medium-sized buildings require a low initial cost air conditioning system compared to large-scale buildings. For this reason, conventionally, in small and medium-sized buildings, an air conditioning system has been adopted in which conditioned air from an air conditioner is sent to a duct, and the conditioned air sent through this duct is blown out from the outlet to the controlled space. ing. Such air conditioning control is called building multi air conditioning.

  In this building multi-air conditioning, in addition to an air conditioner constituted by an outdoor unit and an indoor unit, a ventilation device for ventilating return air from the control target space and outside air is required. In recent years, a total heat exchanger that can recover a part of the total heat (exhaust heat) of air-conditioning energy lost by ventilation is often installed as a ventilation device.

  When using a total heat exchanger as a ventilator, such as in the middle period (spring / autumn), if the indoor heat load is high (requires cooling) and the outside air temperature is lower than the room temperature, the total heat exchange By taking outside air into the room without performing heat exchange by the cooler, it is possible to expect the energy saving effect by the outside air cooling.

  For example, in the system disclosed in Patent Document 1, the ventilation device is a total heat exchanger having a heat exchange ventilation mode with heat exchange and a non-heat exchange ventilation mode in which only ventilation is performed without heat exchange. If the room temperature is higher than the cooling set temperature and the outside air temperature and the difference between the room temperature and the cooling set temperature is less than the predetermined value while the unit is operating in the cooling operation, the ventilation device (total heat exchanger) ) Is switched from the heat exchange ventilation mode to the non-heat exchange ventilation mode, and the air conditioner is stopped in conjunction with this.

  FIG. 11 shows an outline of the air conditioning control system disclosed in Patent Document 1. In the figure, 1 is an air conditioner, 2 is a ventilator (total heat exchanger), 3 is a controller, 4 is a control target space, 5 is an indoor temperature sensor that detects the temperature of the control target space 4 as the indoor temperature Trpv, 6 Is an outside air temperature sensor that detects the temperature of the outside air before being taken into the ventilation device 2 as the outside air temperature Tout, and 7 is an indoor temperature setting device that sets the set value of the room temperature when cooling is performed as the cooling set temperature Trsp.

  In this system, the air conditioner 1 and the ventilator 2 are installed independently, and the air conditioner 1 controls the return air RA from the control target space 4 as intake air and controls the harmonized air as the supply air SA. The target space 4 is supplied. The ventilator 2 discharges the return air RA from the control target space 4 as exhaust EA, while taking in the outside air OA and supplies it to the control target space 4.

  When the room temperature Trpv is higher than the cooling set temperature Trsp and the outside air temperature Tout is higher than the room temperature Trpv, the controller 3 operates the ventilation device 2 in the heat exchange ventilation mode and operates the air conditioner 1 in the cooling mode. On the other hand, when the room temperature Trpv is higher than the cooling set temperature Trsp and the outside air temperature Tout and the difference ΔTr between the room temperature Trpv and the cooling set temperature Trsp is equal to or less than the predetermined value Tth, the controller 3 Is switched from the heat exchange ventilation mode to the non-heat exchange ventilation mode and the air conditioner 1 is stopped. When the room temperature Trpv is higher than the cooling set temperature Trsp and the outside air temperature Tout and the difference ΔTr between the room temperature Trpv and the cooling set temperature Trsp is larger than the predetermined value Tth, the air conditioner 1 is operated in the cooling mode. To do.

  That is, when the room temperature Trpv is higher than the cooling set temperature Trsp and the outside air temperature Tout, the controller 3 operates the ventilation device 2 in the non-heat exchange ventilation mode, while setting the difference ΔTr between the room temperature Trpv and the cooling set temperature Trsp. Accordingly, when the difference ΔTr is equal to or smaller than the predetermined value Tth, the air conditioner 1 is stopped, and when the difference ΔTr is larger than the predetermined value Tth, the air conditioner 1 is operated in the cooling mode.

  Thus, when the indoor temperature Trpv is higher than the cooling set temperature Trsp and the outside air temperature Tout and the difference ΔTr between the indoor temperature Trpv and the cooling set temperature Trsp is equal to or less than the predetermined value Tth, the air conditioner 1 is stopped. Thus, only ventilation (bypass ventilation) without heat exchange by the ventilator 2 is performed, and only the introduction of outside air from the ventilator 2 cools the control target space 4 (outside air cooling).

JP 2010-117084 A

  However, in such an air-conditioning control system, when the air-conditioning control zone that the air conditioner 1 is in charge of is far from the installation location of the ventilator 2, there is a problem that the effect of the outside air cooling by ventilation cannot be sufficiently obtained. was there.

  The present invention has been made in order to solve such a problem, and the purpose of the present invention is even when the air-conditioning control zone in charge of the air conditioner is far from the installation location of the ventilator. An object of the present invention is to provide an air conditioning control system and an air conditioning control method capable of sufficiently obtaining the effect of outside air cooling by ventilation.

In order to achieve such an object, the present invention includes an air conditioner that supplies conditioned air to a control target space, and a ventilator that ventilates return air from the control target space and outside air. Is connected in series to the ventilator and takes mixed air of the outside air from the ventilator and a part of the return air from the controlled space, and the ventilator performs heat exchange ventilation mode and heat exchange with heat exchange. An air-conditioning control system having a non-heat exchange ventilation mode that performs only ventilation without being accompanied by an indoor temperature detecting means for detecting the temperature of the controlled space as an indoor temperature, and the temperature of the outside air before being taken into the ventilator. Outside air temperature detecting means for detecting the outside air temperature, indoor temperature setting means for setting the set value of the room temperature when cooling is performed as the cooling set temperature, and the room temperature is higher than the cooling set temperature and the outside air temperature When the ventilation device is operated in the non-heat exchange ventilation mode, the air conditioner is set to the blower mode or the cooling mode according to the difference between the room temperature and the cooling set temperature, and the air conditioning is performed in the determined mode. Control means for operating the machine , the control means, when the room temperature is higher than the outside air temperature and lower than the cooling set temperature by a predetermined value or more, operates the ventilator in the heat exchange ventilation mode, When operating in the heating mode, or when the room temperature is higher than the outside air temperature and lower than the cooling set temperature by the first predetermined value or more, the ventilator is operated in the heat exchange ventilation mode, and the air conditioner is operated in the air blowing mode. When the air conditioner is operated and the room temperature is higher than the outside air temperature and lower than the cooling preset temperature by a second predetermined value greater than the first predetermined value, the ventilator is operated in the heat exchange ventilation mode, and the air conditioner Heating mode In characterized by operation.

  In the present invention, the air conditioner and the ventilation device are connected in series. That is, in the present invention, the air conditioner takes mixed air of the outside air (OA) from the ventilator and a part of the return air (RA) from the control target space as the intake air, and the ventilator is from the control target space. The remainder of the return air (RA) is discharged as exhaust (EA). Further, in the present invention, the control means operates the ventilator in the non-heat exchange ventilation mode when the room temperature is higher than the cooling set temperature and the outside air temperature, and the air conditioner according to the difference between the room temperature and the cooling set temperature. The air blower mode or the cooling mode is determined, and the air conditioner is operated in the determined mode. For example, when the difference between the room temperature and the cooling set temperature is equal to or less than a predetermined value (Tth), the air conditioner is operated in the air blowing mode, and when the difference between the room temperature and the cooling set temperature is greater than the predetermined value (Tth), Operate the air conditioner in cooling mode.

  In the present invention, when the room temperature is higher than the cooling set temperature and the outside air temperature and the difference between the room temperature and the cooling set temperature is equal to or less than a predetermined value (Tth), the ventilation device is set to the non-heat exchange ventilation mode, and the air conditioner is When the ventilation mode is selected, mixed air of outside air (OA) from the ventilator and part of return air (RA) from the control target space is supplied to the control target space as supply air (SA) from the air conditioner It becomes. Thereby, even if the air-conditioning control zone which an air conditioner takes charge of is away from the installation place of a ventilator, it becomes possible to exert the effect of outside air cooling.

  In the present invention, the control means operates the ventilator in the non-heat exchange ventilation mode when the room temperature is higher than the cooling set temperature and the outside air temperature, while adjusting the air conditioner according to the difference between the room temperature and the cooling set temperature. The air blower mode or the air cooling mode is determined, but in conjunction with this, the outside air introduction amount of the ventilator and the air blower amount of the air conditioner are switched in stages according to the difference between the room temperature and the cooling set temperature. It may be. For example, as the deviation between the room temperature and the cooling set temperature increases, the amount of outside air introduced into the ventilator is increased or the amount of air blown from the air conditioner is increased. As a result, the greater the deviation between the room temperature and the cooling set temperature, the higher the cooling effect is performed, and the smaller the deviation is, the more gradually the operation is switched to the energy saving effect. It is possible to perform highly effective driving.

Further, in the present invention, if the indoor temperature is higher than the outside air temperature, and lower than a predetermined value than the set cooling temperature, the ventilator is operated in the heat exchange ventilation mode, so as to operate the air conditioner in the heating mode . In the present invention, when the outside air temperature is significantly lower than the cooling set temperature, the control target space may become too cold. In such a case, by operating the air conditioner in the heating mode, it is possible to solve the problem that the controlled space becomes too cold. Further, by operating the ventilator in the heat exchange ventilation mode, it becomes possible to recover a part of the exhaust heat lost by the ventilation.

In the present invention, the first predetermined value (Tth1) and the second predetermined value (Tth2) larger than the first predetermined value (Tth1) are determined, the indoor temperature is higher than the outside air temperature, When the cooling set temperature is lower than the first predetermined value (Tth1) or more, the ventilation device is operated in the heat exchange ventilation mode, the air conditioner is operated in the air blowing mode, the room temperature is higher than the outside air temperature, and the cooling is performed. when than the set temperature a second predetermined value (Tth2) or lower, the ventilator is operated in the heat exchange ventilation mode, so that to operate the air conditioner in the heating mode, as we switched stepwise to the heating mode To .

  According to the present invention, when the room temperature is higher than the cooling set temperature and the outside air temperature, the ventilator is operated in the non-heat exchange ventilation mode, while the air conditioner is turned on according to the difference between the room temperature and the cooling set temperature. Or the cooling mode, and the air conditioner is operated in the determined mode. For example, when the difference between the room temperature and the cooling set temperature is equal to or less than a predetermined value, the air conditioner is set to the air blowing mode. The air conditioning control zone in which the air conditioner is in charge of supplying air to the control target space as air supply from the air conditioner as a mixture of outside air from the ventilator and part of the return air from the control target space Even when it is away from the place where the ventilation device is installed, the effect of cooling the outside air by ventilation can be sufficiently obtained.

It is a figure showing one embodiment of an air-conditioning control system concerning the present invention. It is a flowchart which shows the 1st example (Embodiment 1) of the processing operation according to the air-conditioner and ventilation apparatus interlocking control function which the controller in this air-conditioning control system has. It is a figure which shows the area | region where the temperature conditions and room temperature of the room temperature in the Embodiment 1, outdoor temperature, and cooling preset temperature are located. It is a flowchart which shows the 2nd example (Embodiment 2) of the processing operation according to the air-conditioner and ventilation apparatus interlocking control function which the controller in this air-conditioning control system has. It is a figure which shows the change of the operation control state of the air conditioner and ventilator according to the processing operation of Embodiment 2. FIG. It is a figure which shows the area | region where the temperature conditions and room temperature of room temperature in the Embodiment 2, outdoor temperature, and cooling preset temperature are located. It is a flowchart which shows the 3rd example (Embodiment 3) of the processing operation according to the air-conditioner and ventilation apparatus interlocking control function which the controller in this air-conditioning control system has. It is a flowchart following FIG. It is a figure which shows the change of the operation control state of the air conditioner and ventilation apparatus according to the processing operation of Embodiment 3. FIG. It is a figure which shows the area | region where the temperature conditions and room temperature of the room temperature in the Embodiment 3, outdoor temperature, and cooling preset temperature are located. It is a figure which shows the outline of the system shown by patent document 1. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing an embodiment of an air conditioning control system according to the present invention. In the figure, the same reference numerals as those in FIG. 11 denote the same or equivalent components as those described with reference to FIG. In addition, in the following description, what is not included in the scope of the right of the present invention is described as an embodiment, but here, it will be described as an embodiment.

  In this air conditioning control system, the air conditioner 1 and the ventilator (total heat exchanger) 2 are configured to be connected in series. That is, the air conditioner 1 takes the mixed air of the outside air OA from the ventilator 2 and part of the return air RA from the control target space 4, and the ventilator 2 returns the return air from the control target space 4. It is connected by ducts D1 to D3 so that the remainder of RA is discharged as exhaust EA.

  In this air conditioning control system, the controller 3 is realized by hardware including a processor and a storage device, and a program that realizes various functions in cooperation with these hardware. It has an air conditioner / ventilator interlocking control function for controlling the operations of the air conditioner 1 and the ventilator 2. Hereinafter, in order to distinguish from the conventional controller 3 shown in FIG. 11, the controller 3 in this Embodiment is shown with the code | symbol 3A.

[Embodiment 1]
FIG. 2 shows a flowchart of a first example (first embodiment) of the processing operation according to the air conditioner / ventilator interlocking control function of the controller 3A.

  The controller 3A periodically takes in the room temperature Trpv from the room temperature sensor 5, the outside air temperature Tout from the outside air temperature sensor 6, and the cooling set temperature Trsp from the room temperature setting device 7 (step S101). Then, the room temperature Trpv is compared with the cooling set temperature Trsp (step S102), and if the room temperature Trpv is higher than the cooling set temperature Trsp (YES in step S102), the room temperature Trpv is compared with the outside air temperature Tout. (Step S103).

  Here, when the room temperature Trpv is higher than the outside air temperature Tout (YES in step S103), that is, when the room temperature Trpv is higher than the cooling set temperature Trsp and the outside air temperature Tout, the controller 3A A difference ΔTr (ΔTr = Trpv−Trsp) from the set temperature cooling set temperature Trsp is obtained (step S104).

  Then, the controller 3A compares the difference ΔTr between the room temperature Trpv and the cooling set temperature / cooling set temperature Trsp with a predetermined value Tth (step S105), and when ΔTr is equal to or less than the predetermined value Tth (ΔTr ≦ Tth) ( YES in step S105, see the hatched area shown in FIG. 3A), the ventilation device 2 is set to the non-heat exchange ventilation mode (step S106), and the air conditioner 1 is set to the air blowing mode (step S107).

  Thus, for example, if the air conditioner 1 is currently in the cooling operation and the ventilator 2 is operating in the heat exchange ventilation mode, the air conditioner 1 is operated from the cooling operation to the air blowing mode (air blowing operation). The ventilation device 2 is switched from ventilation in the heat exchange ventilation mode to ventilation in the non-heat exchange ventilation mode (bypass ventilation).

  In this case, since the air conditioner 1 and the ventilator 2 are connected in series, the mixed air of the outside air OA from the ventilator 2 and a part of the return air RA from the control target space 4 is supplied from the air conditioner 1. The supply air SA is supplied to the controlled space 4. Thereby, even if the air-conditioning control zone in charge of the air conditioner 1 is away from the installation location of the ventilation device 2, it is possible to exert the effect of the outside air cooling, and the effect of the outside air cooling by the ventilation can be sufficiently obtained. become.

  On the other hand, when the comparison result in step S105 is ΔTr> Tth (see NO in step S105, the hatched area shown in FIG. 3B), the controller 3A sets the ventilation device 2 to the non-heat exchange ventilation. The mode is set (step S108), and the air conditioner 1 is set to the cooling mode (step S109).

  Thus, for example, if the air conditioner 1 is currently blowing and the ventilator 2 is operating in the non-heat exchange ventilation mode, the air conditioner 1 operates from the blowing operation to the cooling mode (cooling operation). The ventilation device 2 continues to operate in the non-heat exchange ventilation mode. In this case, the air conditioner 1 cools the mixed air of the outside air OA introduced from the ventilator 2 and a part of the return air RA, and performs the cooling operation using the outside air OA lower than the indoor temperature Trpv. Therefore, energy saving is achieved.

[Embodiment 2]
FIG. 4 shows a flowchart of a second example (second embodiment) of the processing operation according to the air conditioner / ventilator interlocking control function of controller 3A. FIG. 5 shows changes in the operation control state of the air conditioner 1 and the ventilator 2 according to this processing operation.

  In the second embodiment, the air conditioner 1 has a function of switching the air volume in three stages (H (large) / M (medium) / L (small)), and the ventilator 2 has two stages (H (Large) / L (small)) It is assumed that the outside air introduction amount switching function is provided. Both the air flow rate switching function and the outside air introduction amount switching function are known techniques, and a detailed description thereof will be omitted here.

  The controller 3A periodically takes in the room temperature Trpv from the room temperature sensor 5, the outside air temperature Tout from the outside air temperature sensor 6, and the cooling set temperature Trsp from the room temperature setting device 7 (step S201). Then, the room temperature Trpv is compared with the cooling set temperature Trsp (step S202), and if the room temperature Trpv is higher than the cooling set temperature Trsp (YES in step S202), the room temperature Trpv is compared with the outside air temperature Tout. (Step S203).

  When the indoor temperature Trpv is higher than the outside air temperature Tout (YES in step S203), that is, when the indoor temperature Trpv is higher than the cooling set temperature Trsp and the outside air temperature Tout, the controller 3A A difference ΔTr (ΔTr = Trpv−Trsp) from the set temperature cooling set temperature Trsp is obtained (step S204).

  Then, the difference ΔTr between the room temperature Trpv and the cooling set temperature and the cooling set temperature Trsp is compared with the first threshold value TthH (step S205), and when ΔTr is larger than the first threshold value TthH (ΔTr> TthH) ( YES in step S205 (see region I indicated by hatching in FIG. 6), the controller 3A assumes that the deviation is large and sets the ventilator 2 to the non-heat exchange ventilation mode (step S206), and the outside air introduction amount of the ventilator 2 Is set to “H” (step S207), and the air conditioner 1 is set to the cooling mode (step S208).

  When ΔTr is equal to or smaller than the first threshold TthH (ΔTr ≦ TthH) (NO in Step S205), the controller 3A compares ΔTr with the second threshold TthM (<TthH) (Step S209). Here, when ΔTr is larger than the second threshold value TthM (ΔTr> TthM) (YES in step S209, refer to region II indicated by hatching in FIG. 6), the controller 3A assumes that “in deviation” and ventilation The device 2 is set to the non-heat exchange ventilation mode (step S210), the outside air introduction amount of the ventilation device 2 is set to “H” (step S211), the air conditioner 1 is set to the air blowing mode (step S212), and the air blowing amount of the air conditioner 1 is set. “H” is set (step S213).

  When ΔTr is equal to or smaller than the second threshold TthM (ΔTr ≦ TthM) (NO in Step S209), the controller 3A compares ΔTr with the third threshold TthL (<TthM) (Step S214). Here, when ΔTr is larger than the third threshold value TthL (ΔTr> TthL) (YES in step S214, refer to region III indicated by hatching in FIG. 6), the controller 3A assumes that “the deviation is slightly small”. The ventilation device 2 is set to the non-heat exchange ventilation mode (step S215), the outside air introduction amount of the ventilation device 2 is set to “L” (step S216), the air conditioner 1 is set to the ventilation mode (step S217), and the ventilation amount of the air conditioner 1 is set. Is set to “M” (step S218).

  When ΔTr is equal to or smaller than the third threshold TthL (ΔTr ≦ TthL) (NO in step S214), the controller 3A checks whether ΔTr is equal to or greater than 0 (step S219). Here, when ΔTr is equal to or greater than 0 (ΔTr ≧ 0) (YES in step S219, refer to region IV indicated by hatching in FIG. 6), controller 3A determines that “deviation is small” and ventilates device 2 The heat exchange ventilation mode is set (step S220), the outside air introduction amount of the ventilator 2 is set to “L” (step S221), the air conditioner 1 is set to the air blowing mode (step S222), and the air blowing amount of the air conditioner 1 is set to “L”. (Step S223).

  In the second embodiment, when the room temperature Trpv is higher than the cooling set temperature Trsp and the outside air temperature Tout, the amount of outside air introduced by the ventilator 2 and the air conditioning according to the difference ΔTr between the room temperature Trpv and the cooling set temperature Trsp. The amount of air blown by the machine 1 is switched in stages. That is, as the deviation between the room temperature Trpv and the cooling set temperature Trsp increases, the amount of outside air introduced into the ventilator 2 increases and the amount of air blown by the air conditioner 1 increases. Thereby, as the deviation between the room temperature Trpv and the cooling set temperature Trsp is larger, the operation with higher cooling effect is performed, and as the deviation becomes smaller, the operation is gradually switched to the operation with higher energy saving effect. Driving with high energy saving effect will be performed.

[Embodiment 3]
FIG. 7 and FIG. 8 divide the flowchart of the third example (second embodiment) of the processing operation according to the air conditioner / ventilator linked control function of the controller 3A. FIG. 9 shows changes in the operation control state of the air conditioner 1 and the ventilator 2 according to this processing operation.

  Also in the third embodiment, as in the second embodiment, the air conditioner 1 has a three-stage (H (large) / M (medium) / L (small)) air volume switching function, and a ventilation device 2 has a switching function of the outside air introduction amount in two stages (H (large) / L (small)). Also, the processing operations of steps S301 to S323 shown in FIG. 7 are the same as the processing operations of steps S201 to S223 shown in FIG.

  When ΔTr is 0> ΔTr (FIG. 7: NO in step S319), that is, when the room temperature Trpv is lower than the cooling set temperature Trsp, the controller 3A sets the first predetermined value defined in the negative direction as ΔTr. The value Th1 is compared (FIG. 8: Step S324). Here, when ΔTr is larger than the first predetermined value Tth1 (Tth1 <ΔTr) (YES in step S324, refer to the region V indicated by hatching in FIG. 10), the controller 3A assumes that “deviation is small”. The ventilation device 2 is set to the non-heat exchange ventilation mode (step S325), the outside air introduction amount of the ventilation device 2 is set to “L” (step S326), the air conditioner 1 is set to the ventilation mode (step S327), and the ventilation amount of the air conditioner 1 is set. Is set to “L” (step S328).

  When ΔTr is equal to or smaller than the first predetermined value Tth1 (ΔTr ≦ Tth1) (NO in step S324), the controller 3A compares ΔTr with the second predetermined value Tth2 (<Tth1) (step S329). Here, when ΔTr is larger than the second predetermined value Tth2 (Tth2 <ΔTr) (YES in step S329, refer to a region VI indicated by diagonal lines in FIG. 10), the controller 3A assumes that “in deviation”. The ventilation device 2 is set to the heat exchange ventilation mode (step S330), the outside air introduction amount of the ventilation device 2 is set to “H” (step S331), the air conditioner 1 is set to the ventilation mode (step S332), and the ventilation amount of the air conditioner 1 is set. “L” is set (step S333).

  When the ΔTr is equal to or smaller than the second predetermined value Tth2 (ΔTr ≦ Tth2) (NO in step S329, refer to the region VII indicated by hatching in FIG. 10), the controller 3A determines that “deviation is large”. Is set to the heat exchange ventilation mode (step S334), the outside air introduction amount of the ventilation device 2 is set to "H" (step S335), and the air conditioner 1 is set to the heating mode (step S336).

  In the above-described second embodiment, when the outside air temperature Tout is significantly lower than the cooling set temperature Trsp, the room temperature Trpv gradually decreases due to the outside air cooling effect, and finally becomes equal to or lower than the cooling set temperature Trsp, and the control target space 4 is excessively cooled. There is a risk of becoming a state of.

  In contrast, in the third embodiment, the ventilation device 2 is switched to the heat exchange ventilation mode while the deviation in the negative direction between the room temperature Trpv and the cooling set temperature Trsp is within a certain range (during “deviation”). In this case, the exhaust heat is recovered, and the decrease in the room temperature Trpv still does not stop, and the deviation in the negative direction between the room temperature Trpv and the cooling set temperature Trsp is further increased (when the deviation is large). The air conditioner 1 is switched to the operation in the heating mode (heating operation). Thereby, it becomes possible to eliminate the problem that the control target space 4 is too cold.

[Extension of the embodiment]
The present invention has been described above with reference to the embodiment. However, the present invention is not limited to the above embodiment. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the technical idea of the present invention. Each embodiment can be implemented in any combination within a consistent range.

  DESCRIPTION OF SYMBOLS 1 ... Air conditioner, 2 ... Ventilator (total heat exchanger), 3 (3A) ... Controller, 4 ... Control object space, 5 ... Indoor temperature sensor, 6 ... Outside temperature sensor, 7 ... Indoor temperature setting device, D1- D3 ... Duct.

Claims (10)

An air conditioner that supplies conditioned air to the control target space; and a ventilator that ventilates return air from the control target space and outside air, the air conditioner being connected in series to the ventilator and The mixed air of the outside air from the ventilator and part of the return air from the controlled space is taken as the intake air, and the ventilator performs only ventilation without heat exchange and heat exchange ventilation mode with heat exchange. An air conditioning control system with a heat exchange ventilation mode,
An indoor temperature detecting means for detecting the temperature of the control target space as an indoor temperature;
An outside air temperature detecting means for detecting the outside air temperature before being taken into the ventilator as an outside air temperature;
A room temperature setting means for setting the set value of the room temperature when performing cooling as the cooling set temperature;
When the room temperature is higher than the cooling set temperature and the outside air temperature, the ventilation device is operated in the non-heat exchange ventilation mode, and the air conditioner is blown according to the difference between the room temperature and the cooling set temperature. Determining whether to be a mode or a cooling mode, comprising a control means for operating the air conditioner in the determined mode ,
The control means includes
When the indoor temperature is higher than the outside air temperature and lower than the cooling set temperature by a predetermined value or more, the ventilator is operated in a heat exchange ventilation mode, and the air conditioner is operated in a heating mode. Air conditioning control system. An air conditioner that supplies conditioned air to the control target space; and a ventilator that ventilates return air from the control target space and outside air, the air conditioner being connected in series to the ventilator and The mixed air of the outside air from the ventilator and part of the return air from the controlled space is taken as the intake air, and the ventilator performs only ventilation without heat exchange and heat exchange ventilation mode with heat exchange. An air conditioning control system with a heat exchange ventilation mode,
An indoor temperature detecting means for detecting the temperature of the control target space as an indoor temperature;
An outside air temperature detecting means for detecting the outside air temperature before being taken into the ventilator as an outside air temperature;
A room temperature setting means for setting the set value of the room temperature when performing cooling as the cooling set temperature;
When the room temperature is higher than the cooling set temperature and the outside air temperature, the ventilation device is operated in the non-heat exchange ventilation mode, and the air conditioner is blown according to the difference between the room temperature and the cooling set temperature. Determining whether to be a mode or a cooling mode, comprising a control means for operating the air conditioner in the determined mode,
The control means includes
When the room temperature is higher than the outside air temperature and lower than the cooling set temperature by a first predetermined value or more, the ventilator is operated in a heat exchange ventilation mode, and the air conditioner is operated in an air blowing mode,
When the room temperature is higher than the outside air temperature and lower than the cooling set temperature by a second predetermined value greater than the first predetermined value, the ventilator is operated in a heat exchange ventilation mode, An air conditioning control system, wherein the air conditioner is operated in a heating mode . In the air conditioning control system according to claim 1 or 2 ,
The control means includes
The air conditioning control is characterized in that the air conditioner is operated in an air blowing mode when the room temperature is higher than the cooling set temperature and the outside air temperature, and the difference between the room temperature and the cooling set temperature is a predetermined value or less. Stem. In the air conditioning control system according to claim 3 ,
The control means includes
When the room temperature is higher than the cooling set temperature and the outside air temperature, and the difference between the room temperature and the cooling set temperature is larger than the predetermined value, the air conditioner is operated in a cooling mode. Air conditioning control system. In the air conditioning control system according to claim 1 or 2 ,
The control means includes
An air conditioning control system characterized by switching an outside air introduction amount of the ventilation device and an air blowing amount of the air conditioner stepwise in accordance with a difference between the room temperature and the cooling set temperature . An air conditioner that supplies conditioned air to the control target space; and a ventilator that ventilates return air from the control target space and outside air, the air conditioner being connected in series to the ventilator and The mixed air of the outside air from the ventilator and part of the return air from the controlled space is taken as the intake air, and the ventilator performs only ventilation without heat exchange and heat exchange ventilation mode with heat exchange. An air conditioning control method applied to a system having a heat exchange ventilation mode,
An indoor temperature detecting step for detecting the temperature of the space to be controlled as an indoor temperature;
An outside air temperature detecting step for detecting the outside air temperature before being taken into the ventilator as an outside air temperature; and
An indoor temperature setting step for setting the set value of the indoor temperature when performing cooling as the cooling set temperature;
When the room temperature is higher than the cooling set temperature and the outside air temperature, the ventilation device is operated in the non-heat exchange ventilation mode, and the air conditioner is blown according to the difference between the room temperature and the cooling set temperature. A control step for determining whether to set the mode or the cooling mode, and operating the air conditioner in the determined mode,
The control step includes
When the room temperature is higher than the outside air temperature and lower than the cooling set temperature by a predetermined value or more, the ventilation device is operated in a heat exchange ventilation mode, and the air conditioner is operated in a heating mode.
The air-conditioning control method characterized by the above-mentioned . An air conditioner that supplies conditioned air to the control target space; and a ventilator that ventilates return air from the control target space and outside air, the air conditioner being connected in series to the ventilator and The mixed air of the outside air from the ventilator and part of the return air from the controlled space is taken as the intake air, and the ventilator performs only ventilation without heat exchange and heat exchange ventilation mode with heat exchange. An air conditioning control method applied to a system having a heat exchange ventilation mode,
An indoor temperature detecting step for detecting the temperature of the space to be controlled as an indoor temperature;
An outside air temperature detecting step for detecting the outside air temperature before being taken into the ventilator as an outside air temperature; and
An indoor temperature setting step for setting the set value of the indoor temperature when performing cooling as the cooling set temperature;
When the room temperature is higher than the cooling set temperature and the outside air temperature, the ventilation device is operated in the non-heat exchange ventilation mode, and the air conditioner is blown according to the difference between the room temperature and the cooling set temperature. A control step for determining whether to set the mode or the cooling mode, and operating the air conditioner in the determined mode ,
The control step includes
When the indoor temperature is higher than the outside air temperature and lower than the cooling set temperature by a first predetermined value or more, the ventilator is operated in a heat exchange ventilation mode, and the air conditioner is operated in an air blowing mode,
When the room temperature is higher than the outside air temperature and lower than the cooling set temperature by a second predetermined value greater than the first predetermined value, the ventilator is operated in a heat exchange ventilation mode, An air conditioning control method comprising operating the air conditioner in a heating mode . In the air-conditioning control method according to claim 6 or 7 ,
The control step includes
The air conditioning control is characterized in that when the room temperature is higher than the cooling set temperature and the outside air temperature, and the difference between the room temperature and the cooling set temperature is equal to or less than a predetermined value, the air conditioner is operated in a blowing mode. Method. In the air-conditioning control method according to claim 8,
The control step includes
When the room temperature is higher than the cooling set temperature and the outside air temperature, and the difference between the room temperature and the cooling set temperature is larger than the predetermined value, the air conditioner is operated in a cooling mode. Air conditioning control method. In the air-conditioning control method according to claim 6 or 7 ,
The control step includes
An air conditioning control method, wherein the outside air introduction amount of the ventilator and the air blowing amount of the air conditioner are switched in stages according to the difference between the room temperature and the cooling set temperature.

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