JP2010236767A - Ventilation air conditioner with mist function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sauna space which can save energy and in which a mist spraying amount is hardly affected by hot water supply load. <P>SOLUTION: This ventilation air conditioner includes a circulation fan 5 for distributing the air, a refrigerant circuit 13 loading a heat pump, a first mist injecting means 15 for injecting mist, a water supply temperature sensor 16, a second mist injecting means 17 branched from a water supply pipe, a heat exchanger 18 for heating the water connected to bypass a refrigerant in the refrigerant circuit 13 to heat the water supplied to the second mist injecting means 17, a solenoid valve 19 for mist opening and closing the refrigerant to the heat exchanger 18 for heating the water, and a control device 20a. When the water supply temperature is low, the refrigerant is allowed to flow to the heat exchanger 18 for heating the water to heat the water to operate the sauna. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a ventilation air conditioner with a mist function that includes a mist generating device that sprays fine water droplets in a bathroom so that the bathroom can be used as a sauna room, and that performs ventilation and air conditioning of the bathroom using a heat pump.

  As a ventilation air conditioner such as a bathroom using a conventional heat pump, one heat exchanger of the heat pump radiates (or absorbs heat) to air taken from outside the bathroom, and blows the air into the bathroom, There is one in which the other heat exchanger of the heat pump heats (or dissipates) heat from the air discharged from the bathroom to the outside, thereby air-conditioning the bathroom (for example, see Patent Document 1).

  In recent years, it has been proposed to provide a mist generating device in a bathroom in the home and use the bathroom as a sauna room.

  As this kind of mist generating device, there is known a device that sprays hot water from a water heater into a bathroom from the mist generating device (for example, see Patent Document 2).

  And two kinds of methods can be considered for the mist generating device in the bathroom in the home.

  The first method is that the mist generating device has a relatively large particle shape to be sprayed, specifically, a particle shape of about 100 to 300 μm is desirable. There are shower types you can get. Since this shower type is sprayed directly on the naked human body, the temperature of the bathroom and the water supply temperature for spraying mist need to be higher than the body temperature in a short time.

In the second method, the shape of the sprayed particles of the mist generator is relatively small, specifically, a particle shape of 0.3 μm or less is desirable, and the mist spray is not directly applied to the user during bathing. There is a fine water drop type that can promote sweating by reading time and listening to music. Since this fine water droplet type is relaxing in the bathroom for a long time, the temperature of the bathroom is preferably equal to or less than the body temperature. Moreover, although the water supply temperature for mist spraying changes with bathroom temperature and particle shape, even if it is low temperature compared with a shower type, it has a sufficient effect.
JP 2005-180712 A JP 2006-304871 A

  As described above, various types of bathroom ventilation air conditioners using heat pumps for energy saving have been proposed.

  And in the mist generator illustrated in Patent Document 2, when the hot water supplied from the water heater uses hot water elsewhere, the temperature of the water supply tends to become unstable, especially in winter, the piping distance from the water heater Due to the influence of the ambient temperature, there was a problem that the temperature of the water supply was lowered and it took time to generate an optimal mist and to make the bathroom into a sauna space.

  In addition, as a reheating means for heating the hot water from the water heater to a predetermined temperature, there are an electric heater method and a method using the circulating hot water with the hot water heater, etc. There was a problem that it was necessary to construct dedicated piping for circulating hot water with the vessel.

  The present invention solves the above-described conventional problems, and provides a ventilation air conditioner with a mist function that can improve the energy saving in heating operation and sauna operation, and can make a stable sauna space with less influence of hot water supply load on the mist spray amount. It is intended to provide.

  In order to achieve the above-mentioned object, the ventilation air conditioner with a mist function of the present invention compresses a refrigerant, a circulation fan for sucking air from a suction opening opened in the bathroom and blowing out air from a blowout opening opened in the bathroom. The first heat exchanger that exchanges heat with the refrigerant in order to warm the air blown by the circulation fan in order from the compressor that performs the operation, the expansion mechanism that expands the refrigerant, and the air in the bathroom and the other room are sucked in from the suction port The refrigerant circuit connected by piping to circulate the refrigerant to the second heat exchanger that exchanges heat with the air blown by the ventilation fan exhausted outside from the exhaust duct, and the mist from the water supply pipe to the bathroom during sauna operation A first mist injection means for injecting, a feed water temperature sensor for detecting a feed water temperature, a second mist injection means branched from the first mist injection means and the water supply pipe, and the second mist A water heating heat exchanger in which refrigerant piping is connected so that the refrigerant bypasses the first heat exchanger of the refrigerant circuit in order to heat the feed water to the jetting means, and the refrigerant to the water heating heat exchanger And a controller for controlling the circulation fan, the refrigerant circuit, the first mist injection means, the water heating heat exchanger, and the second mist injection means.

  Thereby, the said control apparatus can make the stable sauna driving | operation which has little influence of the fluctuation | variation of a hot water supply load with the improvement of the energy saving in heating operation or a sauna driving | operation, and the amount of mist spraying by feed water heating.

  In addition, as a reheating means for heating the hot water from the water heater to a predetermined temperature, compared to the case of the electric heater method, it saves electricity bills, compared to the case of the method using the circulating hot water with the water heater. Thus, a ventilation air conditioner with a mist function can be obtained which makes it unnecessary to construct a dedicated pipe for circulating hot water with a water heater.

  ADVANTAGE OF THE INVENTION According to this invention, the ventilation air conditioner with a mist function with the effect of implement | achieving the stable sauna space with little influence of the hot water supply load and the energy saving improvement in the heating operation using the heat pump or the sauna operation can be provided.

  The ventilation air conditioner with a mist function according to claim 1 of the present invention includes a circulation fan for sucking air from a suction port opened to the bathroom and blowing the air from a blower opening opened to the bathroom, and a compressor for compressing the refrigerant. A first heat exchanger for exchanging heat in order to heat the air blown by the circulation fan in order, an expansion mechanism for expanding the refrigerant, air in the bathroom and other rooms from the suction port, and from the exhaust duct A refrigerant circuit that is piped to circulate the refrigerant to a second heat exchanger that exchanges heat between the air blown by the ventilation fan exhausted outdoors and the refrigerant, and a first that injects mist from the water supply pipe to the bathroom during sauna operation Mist injection means, feed water temperature sensor for detecting feed water temperature, second mist injection means branched from the first mist injection means and the water supply pipe, and the second mist injection means A water heating heat exchanger in which refrigerant piping is connected so that the refrigerant bypasses the first heat exchanger of the refrigerant circuit to heat water, and a mist for opening and closing the refrigerant to the water heating heat exchanger A solenoid valve; and a control device for controlling the circulation fan, the refrigerant circuit and the first mist injection means, the water heating heat exchanger, and the second mist injection means, wherein the control device depends on the temperature of the feed water temperature sensor, The water heating heat exchanger and the first and second mist injection means are controlled, and has an effect of performing an optimum sauna operation.

  Moreover, the ventilation air conditioner with a mist function according to claim 2 of the present invention is provided with a heat exchanger for heating air-conditioning water in which the first heat exchanger and the water heating heat exchanger are integrated. It has the effect | action of warming a water supply pipe in advance with the residual heat of the refrigerant | coolant for warming a bathroom, and speeding up the heating of the 2nd mist injection means which injects mist from a water supply pipe to a bathroom.

  A ventilation air conditioner with a mist function according to claim 3 of the present invention is a mist spraying structure that also serves as the first mist injection means for injecting mist from a water supply pipe to the bathroom, and passes through the water heating heat exchanger. The structure has only two mist injection means, and has an effect that the structure in the main body can be simplified.

  Further, in the ventilation air conditioner with a mist function according to claim 4 of the present invention, the first mist spraying means and the second mist spraying means are dedicated particle shapes so that the particle shapes of the mist sprayed into the bathroom are different. The mist spraying can be optimally changed in accordance with the user's preference.

  Further, the ventilation air conditioner with a mist function according to claim 5 of the present invention is provided with an air conditioning electromagnetic valve for opening and closing the refrigerant to the first heat exchanger, and the refrigerant flows only through the water heating heat exchanger. And has the effect of preferentially heating the temperature of the water supplied from the second mist injection means.

  According to a sixth aspect of the present invention, there is provided a ventilation air conditioner with a mist function including an air conditioning electric expansion valve capable of adjusting a refrigerant amount by an opening / closing amount of the air conditioning electromagnetic valve for opening / closing the refrigerant to the first heat exchanger. It has the provided structure, and has the effect that the temperature of both the heating blast and the feed water heating can be adjusted.

  Moreover, the ventilation air conditioner with a mist function according to claim 7 of the present invention is configured such that the compressor in the refrigerant circuit is provided with an inverter compressor capable of variable speed for further energy saving. When the temperature is low, the heating capacity at the start of operation is maximized, or when the temperature is stabilized or the air conditioning load is light, power consumption can be reduced and fine temperature control can be performed.

  Further, the ventilation air conditioner with a mist function according to claim 8 of the present invention is provided with a humidity sensor capable of detecting the humidity of the air sucked from the suction port opened in the bathroom, and is in a mist state of the bathroom. Therefore, the mist injection of the first or second mist injection means can be adjusted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIG.

  FIG. 1 is a view showing a mist spray from a ventilation path air conditioner with a mist function according to the present embodiment, a refrigerant circuit, and a water supply pipe, with the ceiling on the top and the bathroom on the bottom.

  In FIG. 1, a ventilation air conditioner with a mist function installed on a ceiling 1 has a main body 2 with a suction port 3 for sucking air opened to the bathroom, a blower port 4 for blowing air to the bathroom, and the suction port 3. The circulation fan 5 that blows out the air sucked from the air outlet 4, the other-chamber intake port 9 that sucks in air from the other chamber, the air sucked from the suction port 3 and the air sucked from the other-chamber intake port 9 is exhausted. A ventilation fan 11 is provided to exhaust air from the duct 10 to the outside.

  The main body 2 includes a first heat exchanger 7 that exchanges heat of the air blown by the circulation fan 5 and the refrigerant, an expansion mechanism 8 that expands the refrigerant, and air blown by the ventilation fan 11. And a second heat exchanger 12 for exchanging the heat of the refrigerant, and a refrigerant circuit 13 comprising a pipe for circulating the refrigerant between the first heat exchanger 7, the second heat exchanger 12, and the expansion mechanism 8. I have.

  Further, the main body 2 includes a first mist injection means 15 and a second mist injection means 17 for spraying mist into the bathroom during sauna operation. The first mist injection means 15 is directly connected to a water supply pipe 14 from a water heater (not shown). The second mist injection means 17 is connected via a water supply pipe 14 a branched from the water supply pipe 14 and heated by the water heating heat exchanger 18. The water heating heat exchanger 18 is connected in series with a mist solenoid valve 19 for opening and closing the refrigerant, thereby bypassing the inlet and the outlet of the first heat exchanger 7 so as to bypass the refrigerant circuit 13. It is connected to the.

  The water supply pipe 14 is provided with a water supply temperature sensor 16 for detecting the water supply temperature.

  Further, the main body 2 is provided with a control device 20a for controlling the circulation fan 5, the refrigerant circuit 13, the first mist injection means 15, the water heating heat exchanger 18, and the second mist injection means 17.

  In the above configuration, the control device 20a closes the mist solenoid valve 19 and warms the bathroom temperature to a predetermined temperature by the refrigerant circuit 13 and the circulation fan 5 with the start of the sauna operation.

  Thereafter, when the water supply temperature is equal to or higher than a predetermined temperature due to the temperature in the bathroom and the temperature of the water supply temperature sensor 16, the first mist spraying means 15 sprays mist on the bathroom. When the feed water temperature is equal to or lower than the predetermined temperature, the mist spraying is not performed from the first mist injection means 15, the mist solenoid valve 19 is opened, and the coolant is caused to flow through the water heating heat exchanger 18. The water supply to the 2nd mist injection means 17 can be heated, and mist spraying can be carried out from the 2nd mist injection means 17 to a bathroom with this heated water supply. In addition, a sauna space that is less affected by the rise of the winter season and the hot water supply load is realized.

  In particular, water heaters that distribute water to ventilation air conditioners with a mist function generally distribute water for hot water supply to bathrooms, washrooms, and kitchens in the home, and operate ventilation air conditioners with a mist function. When hot water is used in the kitchen, for example, the load on the water heater may fluctuate and the water distribution temperature may become unstable. In such a case, in this embodiment, since the temperature of the water supply pipe 14 is detected by the water supply temperature sensor 16, this is detected and the mist is transferred from the first mist injection means 15 to the second mist injection means 17. By switching the spraying, it is possible to heat by the heat exchanger 18 for water heating, and it is possible to spray a mist having a stable temperature.

  As described above, a stable sauna space that is less affected by the hot water supply load can be realized.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIG. In order to facilitate understanding, the same parts as those in the first embodiment are denoted by the same reference numerals, and the detailed description is simplified.

  The present embodiment is provided with a heat exchanger 21 for heating air-conditioning water in which the first heat exchanger 7 and the water heating heat exchanger 18 are integrated.

  The air conditioning water heating heat exchanger 21 supplies water for the second mist injection means 17 that injects mist into the bathroom above the air conditioning refrigerant so that the supply water temperature is unlikely to decrease due to residual heat of the refrigerant for warming the air. A coolant for supplying water is provided.

  In the above configuration, the controller 20b closes the mist electromagnetic valve 19 and warms the bathroom temperature to a predetermined temperature by the refrigerant circuit 13 and the circulation fan 5 with the start of the sauna operation.

  Thereafter, when the water supply temperature is equal to or higher than a predetermined temperature due to the temperature in the bathroom and the temperature of the water supply temperature sensor 16, the first mist spraying means 15 sprays mist on the bathroom. When the feed water temperature is equal to or lower than the predetermined temperature, the mist spraying is not performed from the first mist injection means 15, the mist solenoid valve 19 is opened, and the coolant is caused to flow through the water heating heat exchanger 18. The water supply to the 2nd mist injection means 17 is heated, and mist spray is carried out from the 2nd mist injection means 17 to a bathroom with this heated water supply.

  Thus, mist spraying can be accelerated by preheating the water supply pipe during heating operation, particularly at the start of winter.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to FIG. In order to facilitate understanding, the same parts as those in the first embodiment are denoted by the same reference numerals, and the detailed description is simplified.

  In this embodiment, only the second mist injection means 17 passing through the water heating heat exchanger 18 is used as a mist spray structure that also serves as the first mist injection means 15 for injecting mist from the water supply pipe 14 to the bathroom. To do.

  In the above configuration, the controller 20c closes the mist electromagnetic valve 19 and warms the bathroom temperature to a predetermined temperature by the refrigerant circuit 13 and the circulation fan 5 with the start of the sauna operation.

  Thereafter, when the water supply temperature is equal to or higher than a predetermined temperature due to the temperature in the bathroom and the temperature of the water supply temperature sensor 16, the mist electromagnetic valve 19 is closed and the mist is sprayed into the bathroom from the second mist injection means 17. . When the feed water temperature is equal to or lower than the predetermined temperature, the mist solenoid valve 19 is opened, and the coolant is passed through the water heating heat exchanger 18 to heat the feed water to the second mist injection means 17. The heated water supply sprays mist from the second mist spraying means 17 into the bathroom to make the bathroom into a sauna space. Thus, since one mist injection means sprays mist, simplification of the structure in the main body can realize weight reduction and cost reduction.

(Embodiment 4)
A fourth embodiment of the present invention will be described with reference to FIG. In order to facilitate understanding, the same parts as those in the first embodiment are denoted by the same reference numerals, and the detailed description is simplified.

  The first mist spraying means 15 and the second mist spraying means 17 are configured to be capable of spraying mist with a dedicated particle shape so that the particle shapes of the mist sprayed into the bathroom are different.

  Specifically, the first mist spraying means 15 can spray a fine water droplet type mist spray which may have a relatively low water supply temperature, and the second mist spraying means 17 sprays directly to the user. Allow the hot shower type to spray.

  In the above configuration, the controller 20d closes the mist electromagnetic valve 19 and warms the bathroom temperature to a predetermined temperature by the refrigerant circuit 13 and the circulation fan 5 with the start of the sauna operation.

  Thereafter, when the user desires a fine water droplet type, the first mist spraying means 15 sprays mist on the bathroom with the mist solenoid valve 19 closed. If the user desires a shower type, the mist solenoid valve 19 is opened, and the coolant is passed through the water heating heat exchanger 18 to heat the water supplied to the second mist injection means 17, and this heating. The mist is sprayed from the second mist spraying means 17 to the bathroom by the supplied water to make the bathroom into a sauna space.

  In this way, an optimal sauna space in the bathroom can be created by changing the particle shape of the mist spray according to the user's preference.

(Embodiment 5)
A fifth embodiment of the present invention will be described with reference to FIG. In order to facilitate understanding, the same parts as those in the first embodiment are denoted by the same reference numerals, and the detailed description is simplified.

  An air conditioning electromagnetic valve 22 for opening and closing the refrigerant to the first heat exchanger 7 is provided.

  In the above configuration, the controller 20e closes the mist solenoid valve 19 and warms the bathroom temperature to a predetermined temperature by the refrigerant circuit 13 and the circulation fan 5 with the start of the sauna operation.

  Thereafter, when the temperature in the bathroom reaches a predetermined temperature and the water supply temperature is equal to or higher than the predetermined temperature due to the temperature of the water supply temperature sensor 16, the first mist spraying means 15 sprays mist on the bathroom. When the feed water temperature is equal to or lower than the predetermined temperature, the mist spraying is not performed from the first mist injection means 15, the mist solenoid valve 19 is opened, and the air conditioning solenoid valve 22 is further closed, so that the water heating is performed. The coolant is allowed to flow only through the heat exchanger 18 to accelerate heating of the water supply to the second mist injection means 17, and the heated water supply sprays mist from the second mist injection means 17 to the bathroom, thereby making the bathroom a sauna space. To.

(Embodiment 6)
A sixth embodiment of the present invention will be described with reference to FIG. In order to facilitate understanding, the same parts as those in the first embodiment are denoted by the same reference numerals, and the detailed description is simplified.

  The air conditioning electromagnetic valve 22 for opening and closing the refrigerant to the first heat exchanger 7 is provided with an air conditioning electric expansion valve 23 whose amount of refrigerant can be adjusted by the amount of opening and closing.

  In the above configuration, the controller 20f closes the mist electromagnetic valve 19 and warms the bathroom temperature to a predetermined temperature by the refrigerant circuit 13 and the circulation fan 5 with the start of the sauna operation.

  Thereafter, when the temperature in the bathroom reaches a predetermined temperature and the water supply temperature is equal to or higher than the predetermined temperature due to the temperature of the water supply temperature sensor 16, the first mist spraying means 15 sprays mist on the bathroom. When the feed water temperature is lower than the predetermined temperature, the mist spraying is not performed from the first mist injection means 15, the mist solenoid valve 19 is opened, and both the air conditioning temperature and the feed water temperature are compared. The amount of refrigerant in both the first heat exchanger 7 and the water heating heat exchanger 18 is adjusted by the opening degree of the air conditioning electric expansion valve 23 to heat the feed water to the second mist injection means 17. The mist is sprayed from the second mist spraying means 17 to the bathroom by the heated water supply.

  Thereby, even if sudden load fluctuations in the bathroom, for example, opening and closing of the door, etc. occur, the supply of the refrigerant to the first heat exchanger 7 side is performed without being cut off, so both the heating blast and the feed water heating are performed. The temperature can be adjusted quickly.

(Embodiment 7)
A seventh embodiment of the present invention will be described with reference to FIG. In order to facilitate understanding, the same parts as those in the first embodiment are denoted by the same reference numerals, and the detailed description is simplified.

  In order to further save energy, the compressor 6 in the refrigerant circuit 13 is provided with an inverter compressor 24 capable of variable speed.

  In the above configuration, the controller 20g closes the mist electromagnetic valve 19 and warms the bathroom temperature to a predetermined temperature by the refrigerant circuit 13 and the circulation fan 5 with the start of the sauna operation.

  At this time, in order to maximize the heating capacity when the temperature is low such as in winter, or when the operation is started, the inverter compressor 24 is operated at the maximum capacity, or the power consumption is reduced when the temperature is stabilized or the air conditioning load is light. Therefore, by suppressing the capacity of the inverter compressor 24 step by step, fine temperature control with little temperature hunting or the like can be performed.

(Embodiment 8)
An eighth embodiment of the present invention will be described with reference to FIG. In order to facilitate understanding, the same parts as those in the first embodiment are denoted by the same reference numerals, and the detailed description is simplified.

  A humidity sensor 25 capable of detecting the humidity of the air sucked from the suction port 3 opened in the bathroom is provided.

  In the above configuration, the control device 20h performs mist spraying of one or both of the mist injections of the first mist injection means 15 and the second mist injection means 17 depending on the temperature and humidity state of the bathroom during sauna operation. Thus, a bathroom in a low humidity state particularly in winter can be made into a mist space in a short time.

  As described above, since the ventilation air conditioner with a mist function according to the present invention must be humidified during heating in winter in the extremely cold Hokkaido area, the air conditioning apparatus in which the heating apparatus and the humidifier are provided integrally. It can also be applied to applications.

The figure which shows the structure of the ventilation air conditioner with a mist function which concerns on Embodiment 1 of this invention. The figure which shows the structure of the ventilation air conditioner with a mist function which concerns on Embodiment 2 of this invention.

DESCRIPTION OF SYMBOLS 2 Main body 3 Inlet 4 Outlet 5 Circulation fan 6 Compressor 7 1st heat exchanger 8 Expansion mechanism 9 Other room inlet 10 Exhaust duct 11 Ventilation fan 12 2nd heat exchanger 13 Refrigerant circuit 14 Supply pipe 14a Supply pipe 15 1st mist injection means 16 Feed water temperature sensor 17 2nd mist injection means 18 Heat exchanger for water heating 19 Solenoid valve for mist 20a-20h Control device 21 Heat exchanger for air conditioning water heating 22 Solenoid valve for air conditioning 23 Electric expansion for air conditioning Valve 24 Inverter compressor 25 Humidity sensor

Claims (8)

In order to warm the air blown by the circulation fan in order from the circulation fan for sucking air from the inlet opening opened in the bathroom and blowing out the air from the outlet opening opened in the bathroom, and the compressor compressing the refrigerant Heat exchange between the first heat exchanger that exchanges heat, the expansion mechanism that expands the refrigerant, and the air blown by the ventilation fan that draws in the air in the bathroom and other rooms from the suction port and exhausts the air from the exhaust duct to the outside A refrigerant circuit piped so as to circulate the refrigerant to the second heat exchanger, first mist injection means for injecting mist from the water supply pipe to the bathroom during sauna operation, a water supply temperature sensor for detecting the water supply temperature, The first mist injection means, the second mist injection means branched from the water supply pipe, and the first heat exchanger of the refrigerant circuit for cooling the water supply to the second mist injection means A water heating heat exchanger with refrigerant piping connected so as to bypass, a mist solenoid valve for opening and closing refrigerant to the water heating heat exchanger, the circulation fan, a refrigerant circuit and first mist injection means, water A heat exchanger for heating and a control device for controlling the second mist injection means, and the control device controls the heat exchanger for water heating and the first and second mist injection means according to the temperature of the feed water temperature sensor. Ventilation air conditioner with mist function configured to control and operate the sauna. An air conditioning water heating heat exchanger in which the first heat exchanger and the water heating heat exchanger are integrated is provided, and the second mist injection means for injecting mist from the water supply pipe to the bathroom is heated by opening and closing the refrigerant. The ventilation air conditioner with a mist function according to claim 1, which is configured. The mist according to claim 1 or 2, wherein the mist spraying structure also serving as the first mist spraying means for spraying mist from the water supply pipe to the bathroom is configured only by the second mist spraying means that passes through the water heating heat exchanger. Ventilation air conditioner with function. The mist function according to claim 1 or 2, wherein each of the first mist spraying means and the second mist spraying means can perform mist spraying with a dedicated particle shape so that the particle shape of the mist sprayed into the bathroom is different. Ventilation air conditioner with. A solenoid valve for air conditioning that opens and closes the refrigerant to the first heat exchanger is provided, the refrigerant is allowed to flow only to the heat exchanger for water heating, and priority is given to the feed water temperature for mist injection from the second mist injection means. The ventilation air conditioner with a mist function according to claim 1, 2, 3, or 4 configured to be heated. An air conditioning electric expansion valve capable of adjusting the amount of refrigerant according to the amount of opening and closing is provided as the air conditioning solenoid valve for opening and closing the refrigerant to the first heat exchanger, and the temperature of both the heating air and the feed water heating can be adjusted. The ventilation air conditioner with mist function of claim | item 1, 2, 3, 4 or 5. In order to further save energy, the compressor in the refrigerant circuit is equipped with an inverter compressor capable of variable speed to maximize the heating capacity at low temperatures such as in winter and at the start of operation, when the temperature is stable, and air conditioning load The ventilation air conditioner with a mist function according to claim 1, 2, 4, 5 or 6, wherein the power consumption can be reduced and fine temperature control can be performed when the temperature is light. The humidity sensor which can detect the humidity of the air sucked from the suction opening opened in the bathroom, and configured to adjust the mist injection of the first or second mist injection means according to the mist state of the bathroom. A ventilation air conditioner with a mist function according to 3, 4, 5, 6 or 7.

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