JPH09178242A - Ventilation control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve comfortableness and energy saving capacity by specifying ordinary ventilation which performs a ventilation without heat exchange between outside air and room air with a heat exchanger by a specified formula when the room temperature is higher than the set room temperature and also, higher than the temperature of outside air. SOLUTION: A bypass path 17 is closed and outside air moving through an air supply path 15 is passed through a heat exchanger 4 to be supplied to the room side from an air fan 2. The room air moving through an exhaust path 16 is passed through the heat exchanger 4 to be discharged to the outdoor side from an exhaust fan 3. When the air passes through the heat exchanger 4, a heat exchange is performed between the outside air taken into the room side and the room air discharged to the outdoor side. In this manner, so-called heat exchange ventilation is accomplished. On the other hand, the bypass path 17 is opened and the outside air or the room air is supplied or discharged directly without any heat exchange between both with the heat exchanger. In this manner, so-called ordinary ventilation is accomplished by the formulas I and II. The condition of the formula I is room temperature > set room temperature and room temperature > temperature of outside air and that of the formula II is room temperature < set room temperature and room temperature < temperature of outside air.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an operation control device for a ventilation device.

[0002]

2. Description of the Related Art Conventionally, this type of ventilator is disclosed in, for example, Japanese Patent Laid-Open No. 61-295443 and, as shown in FIG. 7, a main body casing A is provided with indoor and outdoor air supply ports B and C. And indoor and outdoor exhaust ports D and E are formed to form an indoor air supply fan F near the indoor air supply port B and an indoor exhaust fan G near the outdoor air exhaust port E, respectively. In addition to being provided, each air supply port B,
A heat exchanger K for exchanging heat between the outside air passing through the air supply passage H between C and the room air passing through the exhaust passage J between the exhaust ports D and E is arranged, and A bypass passage L that bypasses the exchanger K is provided, and the bypass passage L and the air supply passage H can be switched via the switching damper M.

Further, the above ventilation device is provided with an operation control device, that is, an indoor temperature detector for detecting the indoor temperature and an outside air temperature detector for detecting the outside air temperature are used, and the detection of each of the detectors is performed. A heat exchange ventilation for exchanging heat between the outside air passing through the air supply passage H and the room air passing through the exhaust passage J while exchanging heat with each other by the heat exchanger K by the switching operation of the switching damper M based on the temperature, and this heat exchange. Energy saving measures and comfort are obtained by selectively performing normal ventilation for directly supplying and exhausting outside air and indoor air without performing heat exchange in the container K.

The above normal ventilation and heat exchange ventilation are performed as follows based on the detected temperatures of the room temperature and the outside air temperature detector during the cooling and heating operations using the air conditioner. That is, in the summer, after determining that the operation by the air conditioner is the cooling operation, when the indoor temperature detected by the indoor temperature detector is higher than the outside air temperature detected by the outside air temperature detector,
By opening the bypass passage L with the switching damper M and performing normal ventilation, the indoor air is cooled by the outside air to save energy, and when the indoor temperature is lower than the outside air temperature, the switching damper M closes the bypass passage L. By performing heat exchange ventilation, the outside air introduced into the indoor side is heat-exchanged by the heat exchanger K, and the heat loss in the indoor side is reduced, thereby saving energy. Also, when used in an office with a lot of office automation equipment, etc., it is performed in the same manner as described above. When the room temperature is higher than the outside air temperature, normal ventilation is performed to save energy, and When the temperature is lower than the outside air temperature, heat exchange ventilation is performed to save energy.

Furthermore, in winter, when the operation by the air conditioner is judged to be the heating operation, and when the indoor temperature is higher than the outside air temperature, heat exchange ventilation is performed to obtain comfort by eliminating the feeling of draft of cold air and to save energy. In addition, when the room temperature is lower than the outside air temperature, normal ventilation is performed to perform outside air heating to save energy. Also, OA
Even when used in offices with many equipment, etc., it is performed in the same way as the above case.When the room temperature is higher than the outside air temperature, heat exchange ventilation is performed to save energy, and the room temperature When the temperature is lower than the outside temperature, normal ventilation is used to save energy.

[0006]

However, in the operation control device for the ventilation device as described above, since the operation is performed based only on the detected temperatures of the indoor and outdoor air detectors without considering the indoor set temperature, There is a problem that proper judgment cannot be made and sufficient comfort and energy saving cannot be obtained. For example,
When used in offices with many office automation equipment, when the room temperature is higher than the outside air temperature during cooling, normal ventilation is performed, but when the room temperature is lower than the set temperature set on the air conditioner side, If normal ventilation is used, the room temperature will drop further below the set temperature as the outside air is introduced into the room, giving the occupants a sense of draft and impairing comfort.
Also, when the indoor temperature is lower than the outside air temperature, heat exchange ventilation is performed, but when the indoor temperature is also lower than the set temperature, if heat exchange ventilation is performed, the indoor temperature may approach the set temperature quickly. The inconvenience is not possible and the comfort is insufficient.

Further, when it is used in an office or the like having a lot of office automation equipment, the same inconvenience occurs during heating.
That is, when the indoor temperature is higher than the outside air temperature, the heat exchange ventilation is performed, but when the indoor temperature is higher than the set temperature, if the heat exchange ventilation is performed, the inconvenience that the room temperature cannot quickly approach the set temperature occurs. Occurs and is insufficient for comfort. Also, when the room temperature is lower than the outside air temperature, normal ventilation is performed.If the room temperature is higher than the set temperature, the normal ventilation is performed.If the outside air is introduced, the room temperature rises further than the set temperature. The warm air draft is introduced due to the introduction of warm air higher than the room temperature, and the comfort is impaired.

An object of the present invention is to consider the indoor set temperature,
An object of the present invention is to provide an operation control device for a ventilation device that can improve comfort and energy saving by performing switching control of the ventilation device based on the indoor set temperature, the indoor temperature, and the outside air temperature.

[0009]

According to the first aspect of the present invention,
Heat exchange ventilation for exchanging heat between the outside air taken in the indoor side (solid arrow in FIG. 4) and the indoor air exhausted outside the room (arrow in FIG. 4) in the heat exchanger 4, and the outside air (solid line in FIG. 4). Assuming that the operation control device of the ventilation device for switching between indoor air (arrow indicated by two-dot chain line in FIG. 4) and ordinary ventilation for performing ventilation without heat exchange with the heat exchanger 4 is satisfied and the following expression a is satisfied,
That is, in the shaded areas ARA1 and BRA1 in FIG. 6A, normal ventilation is instructed. Indoor temperature> indoor set temperature S, indoor temperature> outside air temperature OA a

According to the second aspect of the present invention, in the same precondition as above, when the following expression b is satisfied, that is, in the shaded areas ARA3 and BRA3 of FIG. 6B, normal ventilation is instructed. Indoor temperature <indoor setting temperature S, indoor temperature <outside air temperature OA b

According to a third aspect of the present invention, in the same precondition as above, when the indoor temperature is higher than the indoor set temperature S, when the following expression c1 is satisfied, that is, the range of the diagonal line to the right of FIG. In ARA1 and BRA1, normal ventilation is performed when the following expression c2 is satisfied, that is, the upper right diagonal area A in FIG.
In RA2, we decided to give instructions for heat exchange ventilation. Indoor temperature> Outside air temperature OA c1 Indoor temperature <Outside air temperature OA c2

According to a fourth aspect of the present invention, in the same precondition as above, when the indoor temperature is lower than the indoor set temperature S, when the following equation d1 is satisfied, that is, the range of the diagonal line to the right of FIG. In ARA3 and BRA3, normal ventilation is performed when the following expression d2 is satisfied, that is, the upper right diagonal range B in FIG. 6 (d).
In RA2, we decided to give instructions for heat exchange ventilation. Room temperature <outside air temperature OA d1 Room temperature> Outside air temperature OA d2

According to a fifth aspect of the present invention, in the same precondition as described above, when the following equation e1 is satisfied in a cooling atmosphere in which the indoor temperature is higher than the indoor set temperature S, that is, the diagonal line to the right of FIG. In the ranges ARA1 and BRA1, when normal ventilation is satisfied, the following equation e2 is satisfied, that is, in the upper right diagonally shaded area ARA2 in FIG. 6E, heat exchange ventilation is instructed, and the indoor temperature is lower than the indoor set temperature S. Under the atmosphere, when the following equation e2 is satisfied, that is, in the right-downward diagonal range ARA3 and BRA3 of FIG. 6 (e), normal ventilation is performed, when the following equation e1 is satisfied, that is, the upper-right diagonal range BRA2 of FIG. 6 (e). Then, I decided to instruct each heat exchange ventilation. Indoor temperature> Outside air temperature OA e1 Indoor temperature <Outside air temperature OA e2

According to a sixth aspect of the present invention, in the same precondition as above, when the following expression f is satisfied in a heating atmosphere, that is, the shaded ranges BRA1 and BR of FIG.
In A2, we decided to order heat exchange ventilation. Outside air temperature OA <indoor set temperature S, indoor temperature> Outside air temperature OA f

According to a seventh aspect of the present invention, in the same precondition as above, when the following expression g is satisfied in a heating atmosphere, that is, in the hatched area BRA1 of FIG. I decided to do it. Indoor temperature> Indoor set temperature S, Outside air temperature OA <Indoor set temperature S g

According to an eighth aspect of the invention, in the invention according to any one of the first to seventh aspects, the indoor set temperature S is taken in by monitoring the set temperature signal of the indoor temperature controller in the air conditioner used together. I made it up.

[0017]

According to the invention of claim 1, when the indoor temperature is higher than the indoor set temperature S, the outside air having a temperature lower than that of the indoor air is directly introduced for normal ventilation.
It is possible to quickly bring the indoor temperature close to the indoor set temperature S.

According to the second aspect of the present invention, when the indoor temperature is lower than the indoor set temperature S, the outdoor temperature higher than the indoor air is introduced as it is for normal ventilation, so that the indoor temperature can be quickly set. Can be approached to.

According to the third aspect of the invention, under the condition that the room temperature is higher than the room set temperature S, the room temperature is the outside air temperature O.
When the temperature is higher than A, the indoor temperature can be quickly brought close to the indoor set temperature S by directly introducing the outdoor air that is lower than the indoor air and performing normal ventilation, and when the indoor air is lower than the outdoor air temperature OA. Introduces the outside air by exchanging heat with the indoor air having a temperature lower than that of the outside air, and performs heat exchange ventilation to quickly bring the indoor temperature close to the indoor set temperature S.

According to the fourth aspect of the invention, under the condition that the room temperature is lower than the room set temperature S, the room temperature is the outside air temperature O.
When the temperature is lower than A, the indoor temperature can be quickly brought close to the indoor set temperature S by directly introducing the outdoor air having a temperature higher than the indoor air and performing normal ventilation, and when the indoor air is higher than the outdoor temperature OA. Introduces the outside air by exchanging heat with the indoor air having a temperature higher than that of the outside air and performing heat exchange ventilation, so that the indoor temperature can be brought close to the indoor set temperature S quickly.

In the invention described in claim 5, during cooling, the same operation as in claim 3 is achieved, and the cooling load can be reduced,
At the time of heating, the same operation as in claim 4 is achieved, the heating load can be reduced, and both comfort and energy saving can be achieved.

According to the sixth aspect of the present invention, the heating load can be reduced by introducing the outside air by exchanging heat with the room air having a temperature higher than that of the outside air in the heating atmosphere and performing heat exchange ventilation.

According to the invention of claim 7, in the heating atmosphere, the outside air having a temperature lower than the indoor set temperature S is introduced by heat exchange with the indoor air having a temperature higher than the indoor set temperature S, and heat exchange ventilation is performed to save energy. Along with being able to achieve it, the draft feeling due to cold air can be eliminated.

According to the invention of claim 8, the indoor set temperature S
In order to take in the air conditioner from the air conditioner, it is not necessary to provide a special setting device for the ventilation device separately from the air conditioner, and it is not necessary to set the room temperature separately and independently. Therefore, the load of cooling and heating of the air conditioner can be reduced to save energy.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION The ventilation device shown in FIGS. 4 and 5 includes a main body casing 1, an indoor air supply port 11 and an outdoor air supply port 12,
The indoor and outdoor exhaust ports 13 and 14 are formed, and inside the casing 1, the indoor air supply fan 2 is located near the indoor air supply port 11, and the outdoor air exhaust fan 3 is located near the outdoor air exhaust port 14. Are arranged respectively. A heat exchanger 4 is disposed inside the center of the main body casing 1, and the heat exchanger 4 allows the outside air passing through the air supply passage 15 between the air supply ports 11 and 12 and the exhaust ports 13 and 12. A bypass passage for bypassing the heat exchanger 4 is provided to the side of the heat exchanger 4 inside the casing 1 while performing heat exchange with the indoor air passing through the exhaust passage 16 between the heat exchangers 14. A switching means 5 for switching between the bypass passage 17 and the exhaust passage 16 is provided.

The switching means 5 uses a switching damper 51, a switching motor 52 thereof, and a plurality of connecting rods 53 connecting the motor 52 and the damper 51, and is opened and closed by driving the motor 52. , The exhaust passage 16 and the bypass passage 17 are selectively switched. In FIG. 5, 41,
Reference numeral 41 is a filter of the heat exchanger 4.

Then, as shown by the solid line in FIG. 4, the switching damper 51 is switched to close the bypass passage 17, whereby the outside air passing through the air supply passage 15 is changed as shown by the solid line arrow in FIG. Air is supplied from the air supply fan 2 to the indoor side through the heat exchanger 4, and the indoor air passing through the exhaust passage 16 is allowed to pass through the heat exchanger 4 as indicated by a dotted arrow in FIG. When exhausting from the exhaust fan 3 to the outdoor side and passing through the heat exchanger 4, the outside air taken in the indoor side and the indoor air exhausted to the outdoor side exchange heat with each other, so-called heat exchange ventilation is performed. To do. On the other hand, as shown by the virtual line in the figure,
By switching the damper 51 and opening the bypass passage 17, it is possible to directly supply and exhaust the outside air and the indoor air without causing the heat exchanger 4 to exchange heat between the outside air and the indoor air as shown by the two-dot chain line arrow. , So-called normal ventilation is performed. Thus, by selectively performing these ordinary ventilation and heat exchange ventilation,
Energy conservation measures and comfort are obtained.

The above ventilation device is provided with an operation control device for automatically switching between normal ventilation and heat exchange ventilation. As shown in FIG. 1, this operation control device uses an indoor temperature detector 6 for detecting an indoor temperature, an outside air temperature detector 7 for detecting an outside air temperature, and a controller 8 for switching and controlling the switching means 5. On the input side of the controller 8, each detector 6,
7 is connected. In addition, the above ventilation device is the indoor unit 9
1, an outdoor unit 92, and an air conditioner 9 including a remote controller 93
A monitor line 10 for monitoring the operation signals for cooling and heating of the air conditioner 9 and the room temperature setting signal is provided in combination with the above, and the monitor line 10 is connected to the input side of the controller 8. Then, the switching means 5 is automatically controlled by the output signal from the controller 8 based on the temperature detected by each of the detectors 6 and 7 and the operation signal and the set temperature signal of the air conditioner 9 monitored by the monitor line 10. There is.

More specifically, as shown in FIG. 2, a switch for inputting various operation information such as an operation / stop signal, a cooling operation, a heating operation signal, a set temperature signal, and an air volume setting signal to the remote controller 93 of the air conditioner 9. 94, a control circuit 95 including an encoder, and a transmission circuit 96, and the indoor unit 9
A transmission circuit 97 that receives an outgoing signal from the transmission circuit 96, a control circuit 98 including a decoder, and a transmission circuit 99 are provided on the first side. In addition, the air conditioner 9
Monitor line 10 to the transmission circuit 99 of the indoor unit 91 in
And a transmission circuit 81 connected via
A controller 8 connected to the actuator, an actuator drive circuit 82, a plurality of drive devices 83 for controlling the damper 51 and the motors 52, 21, 31 of the supply / exhaust fans 2, 3.
And a switching damper motor 52 of the damper 51 and a motor 21 of the air supply fan 2 on the output side of the drive device 83.
And the motor 31 of the exhaust fan 3 are connected to each other.

When performing automatic control of the ventilation device,
A cooling / heating operation signal on the air conditioner 9 side, a set temperature signal, and the like from the monitor line 10 are input to the controller 8 via the transmission circuit 81 on the ventilation device side. The detected temperature signals of 7 are input, and output to the actuator drive circuit 82 side based on the detected temperature signals, the cooling and heating operation signals, the set temperature signal, and the like, so that switching is performed via the switching motor 52. The damper 51 is automatically controlled to open and close to selectively perform the normal ventilation and the heat exchange ventilation described above. still,
It is also possible to directly input the cooling / heating operation signal and the set temperature signal of the air conditioner 9 side to the controller 8 side from the remote controller 93. Further, the operation control device of the ventilation device as described above can be applied to a building air conditioner using a plurality of air conditioners.

On the ventilator side, a supply / exhaust fan 2,
3 and the switching motor 52 of the damper 51 are turned on / off, a strength switch of each fan 2, 3 and an operating body 100 including a switch for manually or automatically controlling the damper 51 are provided. The operating body 100 is connected to the input side of the controller 8.

Next, the control mode of the ventilation device by the above operation control device will be described based on the flowchart shown in FIG. First, when the operation signal of the air conditioner 9 is input (step 1), in steps 2, 3 and 4, the blow operation, the cooling operation, and the heating operation are determined in accordance with the operation signal. In the case of the blowing operation (step 2), heat exchange ventilation (step 5) is performed in the ventilation device.

In the cooling operation (step 3), it is judged in step 6 whether the set temperature set on the air conditioner 9 side is higher than the outside air temperature detected by the outside air temperature detector 7, and the result of the judgment is YES. In the case, that is, when the outside air temperature is lower than the set temperature, it is determined in step 7 whether the indoor temperature detected by the indoor temperature detector 6 is in the intermediate range between the outside air temperature and the set temperature. In Case of,
Heat exchange ventilation in step 5 is performed, and in the case of No, normal ventilation is performed in step 8. Further, in the case of NO in step 6, that is, when the outside air temperature is higher than the set temperature, it is judged in step 9 whether the outside air temperature is higher than the indoor temperature, and in the case of YES, step 5
Heat exchange ventilation is performed, and in the case of No, normal ventilation in step 8 is performed.

In the heating operation (step 4), it is determined in step 10 whether the outside air temperature is higher than the set temperature. If yes, in step 11, the indoor temperature is between the outside air temperature and the set temperature. If yes, heat exchange ventilation in step 5 is performed, if no, normal ventilation in step 8 is performed, and in step 10, no ventilation is performed. In other words, that is, when the outside air temperature is lower than the set temperature,
In step 12, it is determined whether the room temperature is higher than the outside air temperature. If the answer is yes, the heat exchange ventilation in step 5 is performed, and if the answer is no, the normal ventilation in step 8 is performed.

As shown in Table 1, the above switching states are arranged according to the magnitude relationship among the indoor temperatures RA1 to RA3, the indoor set temperature S, and the outside air temperature OA, and the results are shown in FIG. In Table 1, cooling and heating are divided into two modes, A and B, for example, cooling A indicates a general indoor use state, and cooling B indicates O.
This is to take into consideration the magnitude reversal of the indoor set temperature S and the outside air temperature OA, such as showing the usage states in offices and the like where there are many A appliances. Further, OA indicates the outside air temperature detected by the outside air temperature detector, and S indicates the set temperature set on the air conditioner side.

[Table 1]

The room temperature RA1 is higher than the set temperature S,
When in a cooling atmosphere (cooling A, B), room temperature RA
When 1 is higher than the outside air temperature OA, normal ventilation is performed as shown in ARA1 and BRA1 of FIG. 6 (a) or (c) or (e). In this way, energy can be saved by directly introducing the outside air without heating the introduced outside air with high-temperature room air. Even in a heating atmosphere,
When the outside air temperature OA is the heating A higher than the indoor set temperature S and the indoor temperature RA1 is higher than the outside air temperature OA, the normal ventilation is performed from the same viewpoint.

Further, when the room temperature RA3 is lower than the set temperature S and the room temperature RA3 is lower than the outside air temperature OA when the room temperature RA3 is lower than the set temperature S (heating A, B), the temperature in FIG. ) Or (e) As shown in ARA3 and BRA3, normal ventilation is performed. In this way, energy can be saved by taking in the outside air as it is without cooling the introduced outside air with low temperature indoor air. Even in a cooling atmosphere,
When the outside air temperature OA is the cooling air B lower than the indoor set temperature S and the indoor temperature RA3 is lower than the outside air temperature OA, the normal ventilation is performed from the same viewpoint.

On the other hand, as shown by ARA2 in FIG. 6 (c) or (e), when the room temperature RA2 is equal to or higher than the set temperature S in the cooling A and the room temperature RA2 is lower than the outside air temperature OA, heat exchange is performed. Energy is saved by performing ventilation and cooling the outside air with low-temperature indoor air before introducing it.
Further, as indicated by ARA2 in FIG. 6C, the heating A, that is, the outside air temperature OA is higher than the indoor set temperature S, and the indoor temperature RA
When 2 is higher than the same set temperature S, even if the room temperature RA2 is lower than the outside air temperature OA, heat exchange ventilation is performed, and the high temperature outside air is cooled and introduced by the low temperature indoor air to save energy. There is.

Further, as shown by BRA2 in FIG. 6 (d), when the room temperature RA2 in the heating B is below the set temperature S,
When the room temperature RA2 is higher than the outside air temperature OA, heat exchange ventilation is performed to improve comfort without directly introducing cold outside air into the room to give a draft feeling.
Further, when the indoor temperature RA2 is lower than the set temperature S in the cooling B, the heat exchange ventilation is performed even when the indoor temperature RA2 is higher than the outside air temperature OA, and the indoor temperature is further lowered with respect to the set temperature with the introduction of the outside air. Therefore, comfort is improved without giving a cold air draft feeling due to the introduction of cold air lower than the room temperature.

Furthermore, the BRA of FIG. 6 (f) or (g)
As shown in FIG. 1, when the heating B, that is, the outside air temperature OA is lower than the indoor set temperature S and the indoor temperature RA31 is higher than the set temperature S (the indoor temperature RA1 is naturally higher than the outside air temperature OA), heat exchange ventilation is performed to open the outside air. By heating the room air with high-temperature indoor air and introducing it, the warm air draft feeling due to the outside air is eliminated to provide comfort and energy saving.

In the cooling A, the room temperature RA3 is set to the set temperature S.
Below, when the outside air temperature OA is higher than the set temperature S, heat exchange ventilation is performed.

[Brief description of the drawings]

FIG. 1 is a system diagram showing an operation control device of a ventilation device of the present invention.

FIG. 2 is a block diagram of the operation control device.

FIG. 3 is a flowchart of the operation control device.

FIG. 4 is a plan sectional view of the ventilation device.

FIG. 5 is a side sectional view of the ventilation device.

FIG. 6 is an explanatory diagram of a switching state between heat exchange ventilation and normal ventilation.

FIG. 7 is a side sectional view of a conventional example.

[Explanation of symbols]

 4; heat exchanger 5; switching means 6; indoor temperature detector 7; outside air temperature detector

Front page continuation (72) Inventor Takeo Miyamoto 1-1 Nishiichitsuya, Settsu-shi, Osaka Daikin Industries, Ltd. Yodogawa Works (72) Inventor Sanshin Yoshimichi Nishiichitsuya 1-1, Settsu-shi, Osaka Daikin Industries, Ltd. Yodogawa Factory

Claims (8)

[Claims] 1. A heat exchange ventilation for exchanging heat between the outside air taken into the indoor side and the indoor air exhausted to the outside by a heat exchanger (4) and the heat exchanger (for exchanging the outside air and the indoor air). 4)
In the operation control device of the ventilation device for switching between the normal ventilation for ventilation without heat exchange in step 1, the operation control device for the ventilation device is instructed when the following expression a is satisfied. Indoor temperature> indoor set temperature S, indoor temperature> outside air temperature OA a 2. Heat exchange ventilation for exchanging heat between the outside air taken into the indoor side and the room air exhausted to the outside by a heat exchanger (4), and the heat exchanger (for exchanging the outside air and the room air). 4)
In the operation control device of the ventilation device that switches between the normal ventilation for ventilation without heat exchange in step 1, the operation control device for the ventilation device is instructed when the following expression b is satisfied. Indoor temperature <indoor setting temperature S, indoor temperature <outside air temperature OA b 3. Heat exchange ventilation for exchanging heat between the outside air taken into the indoor side and the indoor air exhausted to the outside by a heat exchanger (4), and the heat exchanger for exchanging the outside air and the indoor air ( 4)
In the operation control device of the ventilation device that switches between normal ventilation for ventilation without heat exchange in the room temperature S
Under higher conditions, an operation control device for a ventilation device, wherein normal ventilation is instructed when the following equation c1 is satisfied, and heat exchange ventilation is instructed when the following equation c2 is satisfied. Indoor temperature> Outside air temperature OA c1 Indoor temperature <Outside air temperature OA c2 4. Heat exchange ventilation for exchanging heat between the outside air taken into the indoor side and the room air exhausted to the outside by a heat exchanger (4), and the heat exchanger for exchanging the outside air and the room air ( 4)
In the operation control device of the ventilation device that switches between normal ventilation for ventilation without heat exchange in the room temperature S
An operation control device for a ventilation device, which directs normal ventilation when the following expression d1 is satisfied and heat exchange ventilation when the following expression d2 is satisfied under lower conditions. Room temperature <outside air temperature OA d1 Room temperature> Outside air temperature OA d2 5. Heat exchange ventilation for exchanging heat between the outside air taken into the indoor side and the room air exhausted to the outside by a heat exchanger (4), and the heat exchanger (for exchanging the outside air and the room air). 4)
In the operation control device of the ventilation device that switches between normal ventilation for ventilation without heat exchange in the room temperature S
In a higher cooling atmosphere, normal ventilation is instructed when the following equation e1 is satisfied, and heat exchange ventilation is instructed when the following equation e2 is satisfied, and in the heating atmosphere in which the room temperature is lower than the indoor set temperature S, the following equation e2 An operation control device for a ventilation device, wherein normal ventilation is instructed when the following equation is satisfied, and heat exchange ventilation is instructed when the following equation e1 is satisfied. Indoor temperature> Outside air temperature OA e1 Indoor temperature <Outside air temperature OA e2 6. Heat exchange ventilation for exchanging heat between the outside air taken into the indoor side and the room air exhausted to the outside by a heat exchanger (4), and the heat exchanger for exchanging the outside air and the room air ( 4)
In the operation control device of the ventilation device for switching between the normal ventilation for performing ventilation without heat exchange in step 1, the operation control device for the ventilation device is characterized by instructing the heat exchange ventilation when the following expression f is satisfied in a heating atmosphere. Outside air temperature OA <indoor set temperature S, indoor temperature> Outside air temperature OA f 7. Heat exchange ventilation for exchanging heat between the outside air taken into the indoor side and the indoor air exhausted to the outside by a heat exchanger (4), and the heat exchanger for exchanging the outside air and the indoor air ( 4)
In the operation control device of the ventilation device for switching between the normal ventilation for performing ventilation without heat exchange in step 1, when the following expression g is satisfied in a heating atmosphere, the operation control device for the ventilation device is instructed. Indoor temperature> Indoor set temperature S, Outside air temperature OA <Indoor set temperature S g 8. The operation control device for a ventilation device according to claim 1, wherein the indoor set temperature S is obtained by monitoring a set temperature signal of an indoor temperature controller in an air conditioner used together.