JP2005030706A - Central ventilating and air conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To save energy and prevent dewing and icing on an intake heating/cooling part. <P>SOLUTION: A system is so designed that an intake heating/cooling heat exchanger 11 is disposed in an intake duct 34 and supplied with high temperature fluid or low temperature fluid generated in a heat pump type water heater 100 to preheat or precool outside air flowing in the intake duct 34. The heat exchange with high temperature fluid or low temperature fluid generated in the heat pump type water heater 100 can provide preheating to a higher temperature or precooling to a lower temperature than conventional heat recovery from indoor exhaust to thereby prevent dewing and icing, which is a conventional problem especially in the winter, and ensure continuously stable ventilation. The preheating or precooling can use excess heat or waste cold from water heating in the heat pump type water heater 100 to support an air conditioning load if the quantity of heat is sufficient and save energy in the entire system. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a whole-building ventilation air conditioning system that takes in outdoor air with a single air conditioner and cools and cools each room and common space in a building, and particularly heats outdoor air that incorporates the cold and hot heat of a heat pump hot water supply device. -It is related to the whole building ventilation air conditioning system used for cooling.

  As conventional whole building air conditioning systems, there are those shown in Patent Document 1 and Patent Document 2. FIG. 7 is a schematic diagram showing a schematic configuration of a conventional whole-building air-conditioning ventilation system. Outdoor air sucked from the outdoor intake port 34 a passes through the intake duct 35 a of the filter unit 35 from the intake duct 34 and is introduced into the intake side passage 39 a of the intake heating / cooling heat exchanger 39. The intake air heating / cooling heat exchanger 39 exchanges total heat or sensible heat with the exhaust of indoor air, thereby preheating and precooling the outdoor air to save energy in the air conditioning system.

  The outdoor air preheated and precooled by the intake air heating / cooling heat exchanger 39 is introduced into the indoor air conditioner 36 and heated or cooled to a temperature suitable for air conditioning. Thereafter, the air-conditioned air is guided to each room 32 and the common space by the air duct 37 and blown out into the room from the indoor air supply port 37a arranged on the ceiling. The blown air circulates indoors and is generally discharged from an indoor exhaust port 38a disposed in a kitchen, bathroom, toilet or the like.

The air discharged from the room passes through the exhaust duct 38 and the exhaust filter 35b of the filter unit 35 and is introduced into the exhaust side passage 39b of the intake air heating / cooling heat exchanger 39. After exchanging heat with the outdoor air sucked by the intake heating / cooling heat exchanger 39, the air is exhausted to the outdoors from the outdoor exhaust port 38b. Incidentally, an outdoor air conditioner 40 is arranged outdoors, and all of these are combined to form an entire building air conditioning system. And except the outdoor side air conditioner 40, it is arrange | positioned in the attic 33, the ceiling back, etc. in the building 31. FIG.
Japanese Patent Laid-Open No. 11-294836 JP 2002-257399 A

  However, in the conventional whole-building ventilation air conditioning system, the intake air heating / cooling heat exchanger 39 has a purpose of heat recovery of indoor exhaust, and a corresponding air conditioner is required. In winter, there is a problem that condensation or icing occurs in the intake air heating / cooling heat exchanger 39 to cause malfunction. The present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide a whole-building ventilation air conditioning system that saves energy and does not cause condensation or icing in the intake air heating and cooling unit.

  In order to achieve the above object, the present invention employs technical means described in claims 1 to 4. That is, in the first aspect of the invention, outdoor air taken in via the intake passage (34) is heated or cooled by the indoor air conditioner (36), and each room (32) in the building (31) and In the whole building ventilation air-conditioning system supplied to the common space, the intake passage (34) is provided with the intake air heating / cooling means (11), and the intake air heating / cooling means (11) is a high-temperature fluid or low temperature generated by the heat pump hot water supply device (100). By supplying a fluid, the outdoor air flowing through the intake passage (34) is preheated or precooled.

  According to the first aspect of the present invention, since the intake air heating and cooling means (11) exchanges heat with the high-temperature fluid or low-temperature fluid generated by the heat pump hot water supply device (100), Compared to this, preheating or precooling can be performed at a higher temperature or a lower temperature. As a result, it is possible to prevent the occurrence of condensation or icing, which has been a problem in the winter in particular, and it is possible to provide a system that can always provide stable ventilation.

  In addition, since it is not necessary to exchange heat with room exhaust, the exhaust filter of the filter unit can be eliminated. Moreover, since these preheating or precooling uses surplus heat and exhaust cooling heat at the time of hot water supply heating of the heat pump type hot water supply device (100), it is possible to bear an air conditioning load depending on the amount of heat. Energy saving.

  Moreover, in invention of Claim 2, while providing a hot-water type floor heating apparatus (10), after supplying a hot-water type floor heating apparatus (10) from a heat pump type hot-water supply apparatus (100) and performing floor heating, The circulating fluid is supplied as a high-temperature fluid to the intake air heating / cooling means (11).

  According to the second aspect of the present invention, when circulating a high-temperature fluid, it can be combined with the hot water floor heating device (10) to make a system that effectively uses the heat of the circulating fluid. Conventionally, the return water from the hot water type floor heating device (10) has a water temperature of about 40 to 50 ° C. and can be used as a sufficient heat source for preheating outdoor air. . By adopting this method, it is possible to avoid a high water supply state with respect to the hot water supply heating performance, it is possible to operate the heat pump unit with high efficiency, and a further energy saving effect can be obtained.

  In the invention according to claim 3, a cold storage tank (15) is provided, and the low-temperature fluid generated by the heat pump hot water supply device (100) is stored in the cold storage tank (15) and used for preliminary cooling of outdoor air. It is characterized by. According to the third aspect of the present invention, for example, waste heat at the time of hot water supply heating of the heat pump hot water supply device (100) performed using midnight power at night is stored in the cold storage tank (15) as a low-temperature fluid. It can be used for pre-cooling outdoor air during indoor daytime cooling. In this way, the generated exhaust heat can be stored and used effectively when necessary, and further energy saving can be achieved.

  Moreover, in invention of Claim 4, while providing a housing | casing cool storage part (23) in a part of housing | casing of a building (31), the cold heat produced | generated with the heat pump type hot water supply apparatus (100) is given to a housing cool storage part (23). It is characterized by storing cold and using it for preliminary cooling of outdoor air. Although the cold storage tank (15) was provided in the previous invention, according to the invention described in claim 4, a part of the frame of the building (31), such as a concrete wall material, is used as the frame cold storage unit (23). It is possible to improve the installation by removing the cold storage tank (15). In addition, the code | symbol in the bracket | parenthesis of each said means is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

(First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, the entire building ventilation air conditioning system will be described. FIG. 1 is a schematic diagram showing a schematic configuration of a whole-building ventilation air conditioning system according to the first embodiment of the present invention. Dust is removed from the outdoor air sucked from the outdoor intake port 34a through the intake duct (intake path) 34 through the intake filter 35a, and passes through the intake air heating / cooling heat exchanger (intake air heating / cooling means) 11 to the indoor side. It is introduced into the air conditioner 36.

  The intake air heating / cooling heat exchanger 11 is supplied with high-temperature fluid or low-temperature fluid generated by a heat pump hot water supply apparatus 100 described later, thereby preheating (hereinafter referred to as preheating) or precooling (hereinafter referred to as preheating) outdoor air flowing through the intake duct 34. Since then, pre-cool). The outdoor air preheated and precooled by the intake air heating / cooling heat exchanger 11 is introduced into the indoor air conditioner 36 and heated or cooled to a temperature suitable for air conditioning.

  Thereafter, the air-conditioned air is guided to each room 32 and a common space (not shown) by the air duct 37, and blown out into the room from the indoor air supply port 37a disposed on the ceiling. The blown air circulates indoors and is generally sucked from an indoor exhaust port 38a disposed in a kitchen, bathroom, toilet or the like. The air sucked from the room passes through the exhaust duct 38 and is exhausted outdoors from the outdoor exhaust port 38b. Incidentally, the outdoor side air conditioner 40 is arranged outdoors, and all of these constitute a whole building air conditioning system, which is a heat pump type air conditioner or the like that normally uses CFC refrigerant. And except the outdoor side air conditioner 40, it is arrange | positioned in the attic 33, the ceiling back, etc. in the building 31. FIG.

  Next, the heat pump type hot water supply apparatus 100 will be described. FIG. 2 is a schematic diagram showing a configuration of the heat pump type hot water supply apparatus 100 for both cooling function in the first embodiment of the present invention, and performs hot water supply water heating, hot water supply and brine (the low-temperature fluid / circulating fluid) cooling. Indicates the state. The heat pump type hot water supply apparatus 100 in the present embodiment is also used for a cooling function, and heats hot water supply water to a high temperature (about 90 ° C. in the present embodiment) using a supercritical heat pump cycle, as well as brine cooling heat exchange described later. A brine such as an antifreeze liquid serving as a heat exchange medium is cooled to a low temperature (about −10 ° C. in the present embodiment) in the vessel 9, and the brine is used for outdoor air precooling.

  The supercritical heat pump cycle (hereinafter referred to as heat pump) is a heat pump cycle in which the refrigerant pressure on the high pressure side is equal to or higher than the critical pressure of the refrigerant. For example, the heat pump cycle uses carbon dioxide, ethylene, ethane, nitrogen oxide, etc. as the refrigerant. is there. The heat pump type hot water supply apparatus 100 that also serves as a cooling function is roughly divided into a heat pump unit that mainly stores a refrigeration cycle apparatus described later, a hot water storage tank unit that mainly stores a hot water storage tank 7 described later, and a cold storage mainly described later. It comprises a cold storage tank unit in which a tank (cold storage tank) 15 is stored, a hot water type floor heating device 10 as a terminal device, the intake air heating / cooling heat exchanger 11 and the like.

The refrigeration cycle unit is roughly divided into a refrigerant circuit R such as a heat pump cycle, a hot water supply water heating circuit K related to hot water supply, and a brine circuit B related to terminal equipment. First, the refrigerant circuit R of the heat pump cycle includes a refrigerant compressor 1 that compresses the refrigerant, a water heat exchanger 2 that is a heating means for hot water supply, an ejector 14 that is a decompression expansion means for the refrigerant, and a first refrigerant circuit R1. The air heat exchanger 5 for absorbing heat from the atmosphere, the first on-off valve 3a as the refrigerant circuit switching means, and the gas-liquid separator 55 for separating the refrigerant into gas and liquid are connected in a ring shape, Carbon dioxide (hereinafter, CO ₂ ) having a low critical temperature is enclosed.

  The refrigerant compressor 1 includes a built-in drive motor and a high-pressure compressor that discharges the sucked gas refrigerant to a high pressure equal to or higher than the critical pressure, and these are housed in a sealed container. Any method such as reciprocating, rotary, scrolling, etc. may be used. Moreover, an engine drive type may be sufficient. The water heat exchanger 2 heats the hot water by exchanging heat between the high-temperature and high-pressure gas refrigerant boosted by the high-pressure compressor of the refrigerant compressor 1 and the hot-water supply water. The hot-water supply water is adjacent to the high-pressure refrigerant passage 2a. A water passage 2b is provided, and the flow direction of the refrigerant flowing through the high-pressure refrigerant passage 2a is opposed to the flow direction of the hot water supply water flowing through the hot water supply water passage 2b.

The ejector 14 is a nozzle that converts the pressure energy (pressure head) of the high-pressure refrigerant that is pressurized by the refrigerant compressor 1 and flows in through the water heat exchanger 2 into velocity energy (speed head) to decompress and expand the refrigerant. A suction section for sucking the vapor-phase refrigerant evaporated in the air heat exchanger 5 or the brine cooling heat exchanger 9 described later by the high-speed refrigerant flow injected from the nozzle, and the sucked refrigerant and nozzle An ejector having a mixing unit that mixes the refrigerant injected from the refrigerant and a diffuser unit that converts the velocity energy into pressure energy to increase the pressure of the refrigerant.
Note that the variable throttle mechanism 14e is provided with a variable throttle mechanism 14e that controls the pressure of the high-pressure refrigerant by controlling the throttle opening degree on the refrigerant upstream side of the nozzle. 12 is energized and controlled.

  The refrigerant discharged from the ejector 14 flows into the gas-liquid separator 55 and is separated into liquid refrigerant and gas refrigerant, and only the gas refrigerant is sucked into the previous refrigerant compressor 1. Further, the liquid refrigerant is stored and supplied to the air heat exchanger 5. The air heat exchanger 5 receives air blown by a blower fan (not shown) and evaporates the refrigerant supplied from the gas-liquid separator 55 by heat exchange with the atmosphere. Then, the evaporated gas phase refrigerant is sucked into the suction portion of the ejector 14.

  Next, a hot water supply water heating circuit K related to hot water supply includes a hot water supply water passage 2b of the water heat exchanger 2 which is a heating means for hot water supply water, a hot water supply water circulation pump 6 for circulating hot water supply water, and hot water storage for storing hot water supply water. When there is no need for hot water storage to obtain cooling capacity (for example, when there is little hot water used the day before and there is enough hot water in the hot water storage tank 7), the air radiator 4 that radiates heat to the atmosphere is connected in an annular shape. Composed.

  As shown in FIG. 2, the hot water supply water circulation pump 6 supplies cold water from a cold water outflow portion 7 a provided at the lower part of the hot water storage tank 7 to the hot water supply water passage 2 b of the water heat exchanger 2. A water flow is generated so as to recirculate from the provided hot water inflow portion 7b. This hot water supply water circulation pump 6 can adjust the amount of flowing water in accordance with the rotational speed of a built-in motor (not shown).

  The hot water storage tank 7 is made of metal (for example, made of stainless steel) excellent in corrosion resistance and has a heat insulating structure, and can keep hot hot water for a long time. The hot water supply water stored in the hot water storage tank 7 is discharged from a hot water outlet 7c provided in the upper part of the hot water storage tank 7, and mixed with cold water from a water supply by a temperature control valve (not shown) at the time of hot water adjustment. Hot water is supplied mainly to kitchens and baths. Further, cold water from the water supply is replenished as hot water supply water from a cold water inflow portion 7d provided in the lower part of the hot water storage tank 7.

  Next, the brine cooling circuit will be described. First, the first refrigerant circuit R1 branched downstream of the gas-liquid separator 55 and merged at the suction portion of the ejector 14 through the brine cooling heat exchanger 9 and the second on-off valve 3b as refrigerant circuit switching means. A second refrigerant circuit R2 is provided in parallel. The first on-off valve 3a and the second on-off valve 3b provided in the first refrigerant circuit R1 and the second refrigerant circuit R2 are energized and controlled by a control device 12 to be described later, and the first refrigerant is switched by opening and closing. The circulation between the circuit R1 and the second refrigerant circuit R2 is switched.

  The brine cooling heat exchanger 9 cools the brine by exchanging heat between the low-pressure refrigerant supplied from the gas-liquid separator 55 and the brine, and a brine passage 9b is provided adjacent to the low-pressure refrigerant passage 9a. The flow direction of the refrigerant flowing through the low-pressure refrigerant passage 9a and the flow direction of the brine flowing through the brine passage 9b are configured to face each other.

  Next, the terminal-related brine circuit B includes a cold brine circulation pump 8 that circulates the brine, a brine passage 9b of the brine cooling heat exchanger 9 that is a cooling means for the brine, and a cold storage tank that stores the cooled brine. 15 and an intake heating / cooling heat exchanger 11 as a terminal device using the cooled brine are connected in a ring to form a cold brine circuit B1, and water added with a rust preventive or antifreeze as the brine And antifreeze such as LLC (cooling water for engine).

  As shown in FIG. 2, the cold brine circulation pump 8 is provided in the brine circuit B, supplies brine to the brine passage 9 b of the brine cooling heat exchanger 9, and intake air heating provided in the brine circuit B A water flow is generated so as to reflux from the cooling heat exchanger 11. The cold brine circulation pump 8 can adjust the amount of flowing water according to the rotational speed of a built-in motor (not shown). In addition, by providing the cold storage tank 15, even if the brine cooling operation in the brine cooling heat exchanger 9 is interrupted, the cooling in the intake air heating / cooling heat exchanger 11 can be continued.

  Also, a bypass circuit B3 for bypassing and circulating the intake air heating / cooling heat exchanger 11 in the cold brine circuit B1, and an on-off valve 20 (20b) for switching the circulation of the brine to the intake air heating / cooling heat exchanger 11 side or the bypass circuit B3 side.・ 21 is provided. As a result, even when cooling in the intake air heating / cooling heat exchanger 11 is unnecessary, switching to the bypass circuit B3 side and operating brine cooling performs a so-called cold storage operation in which the cooled brine is stored in the cold storage tank 15. It becomes possible.

  Also, a brine heating circuit K2 in which the hot water storage tank 7, the high temperature water side passage 16a of the brine heating heat exchanger 16 and the high temperature water circulation pump 17 are connected in an annular shape, the brine side passage 16b of the brine heating heat exchanger 16, and the warm brine circulation A warm brine circuit B <b> 2 in which a hot water type floor heating apparatus 10 is connected in a ring shape is provided as a terminal device using the pump 18 and the heated brine.

  Then, the high temperature water circulation pump 17 and the warm brine circulation pump 18 are operated to heat-exchange the high temperature water flowing through the high temperature water side passage 16a and the brine flowing through the brine side passage 16b, thereby heating the brine. The brine is distributed to the hot water floor heater 10 to heat and keep the floor in the building 31.

  Reference numerals 19 and 22 denote on-off valves. When the cold brine circuit B1 is circulated, the on-off valve 19 on the cold brine circuit B1 side is opened and the on-off valve 22 on the warm brine circuit B2 side is closed. Conversely, when circulating the warm brine circuit B2, the open / close valve 22 on the warm brine circuit B2 side is opened and the open / close valve 19 on the cold brine circuit B1 side is closed. An on-off valve 20 (20a) for intermittently circulating the brine is provided on the upstream side of the hot water floor heater 10. By the way, in this configuration, if the cooled brine is supplied to the hot water type floor heating device 10, the floor can be cooled in summer.

  Reference numeral 12 denotes a control device that controls the operation of the heat pump type hot water supply apparatus 100 that also serves as a cooling function, and receives signals from an operation panel (not shown), temperature sensors of each part, and other devices, and the refrigerant compressor 1 is opened and closed. Control signals are output to the valves 3a and 3b, the hot water circulation pump 6, the cold brine circulation pump 8, the hot water circulation pump 17, the warm brine circulation pump 18, the open / close valves 19 to 22, and the like.

  Next, features in the present embodiment will be described. First, in the entire building ventilation air conditioning system in which outdoor air taken in via the intake duct 34 is heated or cooled by the indoor air conditioner 36 and supplied to each room 32 and the common space in the building 31, the intake duct 34 is heated by intake air. The cooling heat exchanger 11 is provided, and the high temperature brine or the low temperature brine generated by the heat pump hot water supply device 100 is supplied to the intake air heating / cooling heat exchanger 11 so that the outdoor air flowing through the intake duct 34 is preheated or precooled. I made it.

  As a result, the intake air heating / cooling heat exchanger 11 exchanges heat with the high-temperature brine or the low-temperature brine generated by the heat pump hot water supply apparatus 100, so that the temperature is higher or lower than that of heat recovery from conventional indoor exhaust. It becomes possible to preheat or precool. As a result, it is possible to prevent the occurrence of condensation or icing, which has been a problem in the winter in particular, and it is possible to provide a system that can always provide stable ventilation.

  In addition, since it is not necessary to exchange heat with room exhaust, the exhaust filter of the filter unit can be eliminated. In addition, since these preheating or precooling uses surplus heat or exhaust cooling heat at the time of hot water supply heating of the heat pump hot water supply apparatus 100, it is possible to bear an air conditioning load depending on the amount of heat, and to save energy as a whole system. be able to.

  Moreover, while providing the cool storage tank 15, the low temperature brine produced | generated with the heat pump type hot water supply apparatus 100 is stored in the cool storage tank 15, and is utilized for the precool of outdoor air. Thereby, for example, the exhaust heat at the time of hot water supply heating of the heat pump hot water supply apparatus 100 performed using midnight power at night is stored in the cold storage tank 15 as low-temperature brine, and this is stored in the outdoor storage air during daytime indoor cooling. It can be used for pre-cooling. In this way, the generated exhaust heat can be stored and used effectively when necessary, and further energy saving can be achieved.

(Second Embodiment)
FIG. 3 is a schematic diagram showing a schematic configuration of the entire building ventilation air conditioning system in the second embodiment of the present invention, and FIG. 4 shows a configuration of the heat pump type hot water supply apparatus 100 for both cold function in the second embodiment of the present invention. It is a schematic diagram. The difference from the first embodiment described above is that the brine after being heated from the heat pump type hot water supply device 100 to the hot water type floor heating device 10 and being heated is supplied to the intake air heating / cooling heat exchanger 11 as a high temperature brine. The intake air heating / cooling heat exchanger 11 is connected in series on the downstream side of the hot water type floor heating apparatus 10 as shown in FIGS.

  Thereby, when circulating a high temperature brine, it can be combined with the hot water type floor heating apparatus 10, and it can be set as the system which utilizes the heat of a brine effectively. Conventionally, the return brine from the hot water floor heating apparatus 10 has a temperature of about 40 to 50 ° C. and can be used as a sufficient heat source for preheating outdoor air. By adopting this method, it is possible to avoid a high water supply state with respect to the hot water supply heating performance, it is possible to operate the heat pump unit with high efficiency, and a further energy saving effect can be obtained.

(Third embodiment)
FIG. 5 is a schematic diagram showing a schematic configuration of a whole building ventilation air conditioning system according to a third embodiment of the present invention. The building cold storage unit 23 is provided in a part of the building 31, and the cold heat generated by the heat pump hot water supply apparatus 100 is stored in the building cold storage unit 23 and used for preliminary cooling of outdoor air. This is because the cold storage tank 15 is provided in the first embodiment, but in the present embodiment, instead of the building cold storage system in which a part of the building 31 of the building 31, for example, a concrete wall material, is used as the housing cold storage unit 23. Cold storage is performed. Thereby, the cool storage tank 15 can be deleted and installation property can be improved.

(Other embodiments)
FIG. 6 is a schematic diagram showing a schematic configuration of a whole building ventilation air conditioning system according to another embodiment of the present invention. In the above-described embodiment, the indoor exhaust is exhausted to the outside without exchanging heat. However, as shown in FIG. 6, the indoor exhaust and the outdoor are configured in the same manner as the conventional whole building air conditioning system described in “Background Art”. The air may be subjected to heat exchange, and then further heated or cooled by the intake air heating / cooling heat exchanger 11 of the present invention.

It is a mimetic diagram showing the outline composition of the whole building ventilation air-conditioning system in a 1st embodiment of the present invention. It is a schematic diagram which shows the structure of the heat pump type hot water supply apparatus 100 combined with a cooling function in 1st Embodiment of this invention. It is a schematic diagram which shows schematic structure of the whole building ventilation air conditioning system in 2nd Embodiment of this invention. It is a schematic diagram which shows the structure of the heat pump type hot water supply apparatus 100 combined with a cooling function in 2nd Embodiment of this invention. It is a schematic diagram which shows the general | schematic structure of the whole building ventilation air conditioning system in 3rd Embodiment of this invention. It is a schematic diagram which shows the general | schematic structure of the whole building ventilation air conditioning system in other embodiment of this invention. It is a schematic diagram which shows the general | schematic structure of the conventional whole building ventilation air conditioning system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Hot water type floor heating apparatus 11 ... Intake air heating / cooling heat exchanger (intake air heating / cooling means)
15 ... Cold storage tank (cool storage tank)
23 ... Cool storage unit 31 ... Building 32 ... Room 34 ... Intake duct (intake path)
36 ... Indoor air conditioner 100 ... Heat pump water heater

Claims (4)

In the entire building ventilation air conditioning system for supplying outdoor air taken in through the intake passage (34) to each room (32) and a common space in the building (31) by heating or cooling with an indoor air conditioner (36),
An intake air heating / cooling means (11) is provided in the intake passage (34), and the intake air heating / cooling means (11) is supplied with a high-temperature fluid or a low-temperature fluid generated by a heat pump hot water supply device (100), thereby The whole building ventilation air conditioning system characterized by preheating or precooling said outdoor air which distribute | circulates a path | route (34).   A hot water type floor heating device (10) is provided, and the intake air heating is performed with the circulating fluid after the floor heating is performed by supplying the hot water type floor heating device (10) from the heat pump hot water supply device (100) as the high temperature fluid. The whole building ventilation air conditioning system according to claim 1, characterized in that it is supplied to the cooling means (11).   The cold storage tank (15) is provided, and the low-temperature fluid generated by the heat pump hot water supply device (100) is stored in the cold storage tank (15) and used for preliminary cooling of the outdoor air. The entire building ventilation air conditioning system described.   The building cold storage part (23) is provided in a part of the building (31) housing, and the cold air generated by the heat pump hot water supply device (100) is stored in the housing cold storage unit (23) to reserve the outdoor air. The entire building ventilation air conditioning system according to claim 1, wherein the entire building ventilation air conditioning system is used for cooling.

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