KR20060069704A - Air conditioner with waste heat recovery - Google Patents

Air conditioner with waste heat recovery Download PDF

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Publication number
KR20060069704A
KR20060069704A KR1020040108368A KR20040108368A KR20060069704A KR 20060069704 A KR20060069704 A KR 20060069704A KR 1020040108368 A KR1020040108368 A KR 1020040108368A KR 20040108368 A KR20040108368 A KR 20040108368A KR 20060069704 A KR20060069704 A KR 20060069704A
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South Korea
Prior art keywords
exhaust
heat exchanger
air supply
inlet
heat recovery
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KR1020040108368A
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Korean (ko)
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김성기
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주식회사 대우일렉트로닉스
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Priority to KR1020040108368A priority Critical patent/KR20060069704A/en
Publication of KR20060069704A publication Critical patent/KR20060069704A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F2012/008—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air cyclic routing supply and exhaust air

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

본 발명은 폐열회수를 겸한 에어컨에 관한 것으로, 소정형상의 몸체 내부 중앙에는 열교환이 이루어지는 전열교환기가 배치되고, 상기 전열교환기를 둘러싸며 설치된 다수개의 격막에 의해 서로 구획되어 각각 환기부, 급기부, 배기부 및 유입부가 형성되며, 상기 환기부, 급기부, 배기부 및 유입부와 각각 연통되는 환기구, 급기구, 배기구 및 유입구가 형성되고, 유입 및 배출되는 공기의 원활한 흐름을 유도하기 위해 상기 배기부에는 배기팬이 설치되며, 상기 유입부에는 급기팬이 설치된 폐열회수 환기장치가 구비되고, 상기 폐열회수 환기장치의 급기부 측의 상기 전열교환기 전방에는 액체상태의 냉매가스가 기체상태로 증발시키는 증발기가 설치되고, 상기 배기부 측의 상기 전열교환기 전방에는 고온ㆍ고압의 액체가스의 온도를 낮추는 응축기가 설치되며, 상기 증발기 및 응축기에 압축기 및 팽창밸브가 연결되어 냉매 순환 사이클을 형성하도록 된 것이다.
The present invention relates to an air conditioner that combines waste heat recovery, wherein a heat exchanger for exchanging heat is disposed in the center of a predetermined shape body, and is partitioned from each other by a plurality of diaphragms provided surrounding the heat exchanger, respectively, such as a ventilation unit, an air supply unit, An exhaust part and an inlet part are formed, and a ventilation port, an air supply port, an exhaust port, and an inlet port are formed in communication with the ventilation part, the air supply part, the exhaust part, and the inlet part, respectively, and the inlet and the exhaust air induce a smooth flow of the inlet. An exhaust fan is installed at the base, and a waste heat recovery ventilator having an air supply fan is installed at the inlet, and a liquid refrigerant gas is evaporated in a gaseous state in front of the heat exchanger on the supply side of the waste heat recovery ventilator. An evaporator is installed, and a condenser that lowers the temperature of the liquid gas of high temperature and high pressure in front of the heat exchanger on the exhaust side. Is installed, it is a compressor and an expansion valve connected to the evaporator and the condenser is adapted to form a refrigerant circulation cycle.

폐열회수, 에어컨, 증발기, 응축기, 전열교환기, 효율Waste Heat Recovery, Air Conditioner, Evaporator, Condenser, Total Heat Exchanger, Efficiency

Description

폐열회수를 겸한 에어컨{Air Conditioner with Waste Heat Recovery}Air Conditioner with Waste Heat Recovery

도 1은 종래기술에 따른 폐열회수 환기장치의 개략적인 구성도,1 is a schematic configuration diagram of a waste heat recovery ventilator according to the prior art,

도 2는 본 발명에 따라 폐열회수 기능이 부가된 에어컨의 개략적인 구성도이다.2 is a schematic configuration diagram of an air conditioner to which a waste heat recovery function is added according to the present invention.

- 도면의 주요부분에 대한 부호의 설명 --Explanation of symbols for the main parts of the drawings-

10 : 몸체 20 : 전열교환기10 body 20 heat exchanger

30 : 격막 40 : 환기구30: diaphragm 40: ventilation holes

50 : 배기구 60 : 유입구50: exhaust port 60: inlet port

70 : 급기구 80 : 배기팬70: supply port 80: exhaust fan

85 : 급기팬 100 : 증발기85: supply fan 100: evaporator

200 : 응축기 300 : 압축기200: condenser 300: compressor

A : 환기부 B : 급기부A: Ventilation part B: Air supply part

C : 배기부 D : 유입부C: Exhaust D: Inlet

본 발명은 에어컨에 관한 것으로, 특히 전열교환기가 구비되어 환기되는 공 기에 포함된 현열 및 잠열을 회수하는 폐열회수 기능을 부여하여 에어컨을 냉방 효율을 극대화할 수 있도록 된 폐열회수를 겸한 에어컨에 관한 것이다.The present invention relates to an air conditioner, and more particularly, to an air conditioner having a waste heat recovery function to maximize the cooling efficiency of the air conditioner by providing a waste heat recovery function for recovering sensible and latent heat contained in air ventilated with a heat exchanger. .

주지된 바와 같이, 밀폐된 공간의 냉ㆍ난방 등에 소요되는 에너지를 절감하는 것은 원가절감을 위한 필수적인 과제인 바, 모든 건물은 점차 밀폐형의 에너지 절약형 건물로 건축되고 있는 실정이다.As is well known, reducing the energy required for cooling and heating the enclosed space is an essential task for cost reduction, and all buildings are gradually being constructed as enclosed energy-saving buildings.

이에 따라 밀폐형 건물의 환기가 또 다른 문제로 대두되고 있는데, 이러한 문제를 해결하기 위해 개발된 것이 폐열회수 환기장치(Heat Recovery Ventilator)이다.Accordingly, the ventilation of the enclosed building is another problem, the heat recovery ventilator (Heat Recovery Ventilator) was developed to solve this problem.

이러한 폐열회수 환기장치는 환기과정에서 손실되는 현열 및 잠열을 회수하는 장치로써, 냉ㆍ난방을 실시하면서 환기가 필요한 모든 곳이 사용 대상이 되며, 유독가스나 악취발생, 분진발생 등으로 항시 환기가 필요한 산업현장에서 냉ㆍ난방장치의 경제적 사용을 가능하게 함으로써 쾌적한 작업환경을 조성하여 에너지 절감은 물론, 작업능률 향상과 직업병까지 예방할 수 있는 다양한 장점을 가지고 있다.This waste heat recovery ventilator is a device that recovers sensible and latent heat lost in the ventilation process, and it is used for all places requiring ventilation while cooling and heating, and it is always ventilated by toxic gas, odor generation, dust generation, etc. By enabling economical use of air conditioning and heating equipment in necessary industrial sites, it creates a pleasant working environment and has various advantages to save energy, improve work efficiency and prevent occupational diseases.

한편, 종래의 폐열회수 환기장치를 좀 더 자세히 살펴보면, 도 1에서 보는 바와 같이, 소정형상의 몸체(10) 내부 중앙에는 열교환이 이루어지는 전열교환기(20)가 배치되고, 상기 전열교환기(20)를 둘러싸며 설치된 다수개의 격막(30)에 의해 서로 구획되어 각각 환기부(A), 급기부(B), 배기부(C) 및 유입부(D)가 형성되며, 상기 환기부(A), 급기부(B), 배기부(C) 및 유입부(D)와 각각 연통되는 환기구(40), 급기구(70), 배기구(50) 및 유입구(60)가 형성된다.On the other hand, when looking at the conventional waste heat recovery ventilator in more detail, as shown in Figure 1, the pre-heat exchanger 20 is a heat exchanger is arranged in the inner center of the predetermined shape body 10, the pre-heat exchanger 20 The ventilation unit A, the air supply unit B, the exhaust unit C, and the inlet unit D are formed by partitioning each other by a plurality of enclosed diaphragms 30, respectively. A vent port 40, an air supply port 70, an exhaust port 50, and an inlet port 60 communicate with the base B, the exhaust part C, and the inlet part D, respectively.

또한, 유입 및 배출되는 공기의 원활한 흐름을 유도하기 위해 상기 배기부 (C)에는 배기팬(80)이 구비되고, 상기 유입부(D)에는 급기팬(85)이 구비된다.In addition, an exhaust fan 80 is provided in the exhaust part C, and an air supply fan 85 is provided in the inlet part D in order to induce a smooth flow of the air flowing in and out.

이에 따라, 폐열회수 환기장치의 배기팬(80)이 작동하게 되면, 실내공기는 상기 환기구(40)를 통해 환기부(A)로 유입되어 상기 전열교환기(20)를 경유하여 상기 배기부(C)를 거쳐 배기구(50)를 통해 실외로 배출되는 동시에, 급기팬(85)의 작동에 의해 실외공기가 유입구(60)를 통해 유입부(D)로 유입되어 상기 전열교환기(20)를 경유하여 상기 급기부(B)를 거쳐 급기구(70)를 통해 실내로 급기되는데, 이 과정에서 상기 전열교환기(20)를 경유하는 실내공기와 실외공기는 열교환판을 통해 열교환이 이루어지게 된다.Accordingly, when the exhaust fan 80 of the waste heat recovery ventilator is operated, indoor air flows into the ventilation unit A through the ventilation port 40 and passes through the heat exchanger 20 to the exhaust unit C. At the same time, the outdoor air is discharged to the inlet (D) through the inlet 60 by the operation of the air supply fan 85 through the exhaust heat exchanger (20) through the exhaust heat exchanger (20). The air is supplied into the room through the air supply unit 70 through the air supply unit B. In this process, indoor air and outdoor air passing through the heat exchanger 20 are heat-exchanged through a heat exchange plate.

그러나, 종래의 에어컨에는 전술한 바와 같은 버려지는 폐열을 회수하는 기능이 없기 때문에 에어컨의 효율을 극대화하기 곤란한 문제점이 있었다.However, the conventional air conditioner has a problem that it is difficult to maximize the efficiency of the air conditioner because there is no function to recover the waste heat discarded as described above.

이에 본 발명은 상기와 같은 문제점을 해결하기 위해 창출된 것으로, 전열교환기가 구비되어 환기되는 공기에 포함된 현열 및 잠열을 회수하는 폐열회수 기능을 부여하여 에어컨을 냉방 효율을 극대화할 수 있도록 된 폐열회수를 겸한 에어컨을 제공하는데 그 목적이 있다.Therefore, the present invention was created to solve the above problems, by providing a heat recovery function to recover the sensible and latent heat contained in the air is provided with a heat exchanger waste heat to maximize the cooling efficiency of the air conditioner Its purpose is to provide an air conditioner with a return.

상기와 같은 문제점을 해결하기 위한 본 발명은, 소정형상의 몸체 내부 중앙에는 열교환이 이루어지는 전열교환기가 배치되고, 상기 전열교환기를 둘러싸며 설치된 다수개의 격막에 의해 서로 구획되어 각각 환기부, 급기부, 배기부 및 유입부가 형성되며, 상기 환기부, 급기부, 배기부 및 유입부와 각각 연통되는 환기구, 급 기구, 배기구 및 유입구가 형성되고, 유입 및 배출되는 공기의 원활한 흐름을 유도하기 위해 상기 배기부에는 배기팬이 설치되며, 상기 유입부에는 급기팬이 설치된 폐열회수 환기장치가 구비되고, 상기 폐열회수 환기장치의 급기부 측의 상기 전열교환기 전방에는 액체상태의 냉매가스가 기체상태로 증발시키는 증발기가 설치되고, 상기 배기부 측의 상기 전열교환기 전방에는 고온ㆍ고압의 액체가스의 온도를 낮추는 응축기가 설치되며, 상기 증발기 및 응축기에 압축기 및 팽창밸브가 연결되어 냉매 순환 사이클을 형성하도록 된 것을 특징으로 한다.The present invention for solving the above problems, the heat exchanger is a heat exchanger is arranged in the center of the body of a predetermined shape, partitioned with each other by a plurality of diaphragm installed surrounding the heat exchanger, respectively, ventilator, air supply unit, An exhaust part and an inlet part are formed, and a vent hole, an air supply part, an exhaust port, and an inlet port communicating with the vent part, the air supply part, the exhaust part, and the inlet part, respectively, are formed to induce a smooth flow of the inflow and outflow air. An exhaust fan is installed at the base, and a waste heat recovery ventilator having an air supply fan is installed at the inlet, and a liquid refrigerant gas is evaporated in a gaseous state in front of the heat exchanger on the supply side of the waste heat recovery ventilator. An evaporator is installed, and a condenser that lowers the temperature of the liquid gas of high temperature and high pressure in front of the heat exchanger on the exhaust side. The compressor and the expansion valve are connected to the evaporator and the condenser to form a refrigerant circulation cycle.

이하 본 발명을 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따라 폐열회수 기능이 부가된 에어컨의 개략적인 구성도로서, 종래구조와 동일한 부위에는 동일부호를 표기하여 설명한다.2 is a schematic configuration diagram of an air conditioner to which a waste heat recovery function is added according to the present invention, and the same parts as in the conventional structure will be described with the same reference numerals.

본 발명에 따르면, 소정형상의 몸체(10) 내부 중앙에는 열교환이 이루어지는 전열교환기(20)가 배치되고, 상기 전열교환기(20)를 둘러싸며 설치된 다수개의 격막(30)에 의해 서로 구획되어 각각 환기부(A), 급기부(B), 배기부(C) 및 유입부(D)가 형성되며, 상기 환기부(A), 급기부(B), 배기부(C) 및 유입부(D)와 각각 연통되는 환기구(40), 급기구(70), 배기구(50) 및 유입구(60)가 형성된다.According to the present invention, a heat exchanger 20 for heat exchange is disposed in the center of the body 10 of a predetermined shape, and is partitioned from each other by a plurality of diaphragms 30 installed surrounding the heat exchanger 20 to ventilate. Part A, air supply part B, exhaust part C, and inlet part D are formed, and the ventilation part A, air supply part B, exhaust part C, and inlet part D are formed. And a ventilation port 40, an air supply port 70, an exhaust port 50, and an inlet port 60, which are in communication with each other, are formed.

또한, 유입 및 배출되는 공기의 원활한 흐름을 유도하기 위해 상기 배기부(C)에는 배기팬(80)이 설치되고, 상기 유입부(D)에는 급기팬(85)이 설치된다.In addition, an exhaust fan 80 is installed in the exhaust part C, and an air supply fan 85 is installed in the inlet part D in order to induce a smooth flow of air introduced and discharged.

그리고, 상기 폐열회수 환기장치의 급기부(B) 측의 상기 전열교환기(20) 전방에는 액체상태의 냉매가스가 기체상태로 증발시키는 증발기(100)가 설치되고, 상기 배기부(C) 측의 상기 전열교환기(20) 전방에는 고온ㆍ고압의 액체가스의 온도를 낮추는 응축기(200)가 설치되며, 상기 증발기(100) 및 응축기(200)에 압축기(300) 및 팽창밸브(미도시)가 연결되어 냉매 순환 사이클을 형성하도록 구성된다.In addition, an evaporator 100 for evaporating a liquid refrigerant gas in a gaseous state is installed in front of the heat exchanger 20 on the air supply unit B side of the waste heat recovery ventilator, and on the exhaust unit C side. A condenser 200 for lowering the temperature of the liquid gas of high temperature and high pressure is installed in front of the heat exchanger 20, and a compressor 300 and an expansion valve (not shown) are connected to the evaporator 100 and the condenser 200. And to form a refrigerant circulation cycle.

이하 본 발명의 작동을 상세히 설명한다.Hereinafter, the operation of the present invention will be described in detail.

도 2에서 보는 바와 같이, 상기 배기팬(80)이 작동하게 되면, 실내공기는 상기 환기구(40)를 통해 환기부(A)로 유입되어 상기 전열교환기(20)를 경유하여 상기 배기부(C)를 거쳐 배기구(50)를 통해 실외로 배출되는 동시에, 급기팬(85)의 작동에 의해 실외공기가 유입구(60)를 통해 유입부(D)로 유입되어 상기 전열교환기(20)를 경유하여 상기 급기부(B)를 거쳐 급기구(70)를 통해 실내로 급기되는데, 이 과정에서 전열교환기(20)를 경유하는 실내공기와 실외공기는 열교환판을 통해 열교환이 이루어지게 됨은 물론, 냉매 순환 사이클에 의해 실내로 급기되는 공기가 상기 증발기(100)에서 재차 열교환되면서 보다 냉각된 공기가 상기 급기구(70)를 통해 실내로 토출된다.As shown in FIG. 2, when the exhaust fan 80 is operated, indoor air flows into the ventilation unit A through the ventilation hole 40 and passes through the heat exchanger 20 to the exhaust unit C. At the same time, the outdoor air is discharged to the inlet (D) through the inlet 60 by the operation of the air supply fan 85 through the exhaust heat exchanger (20) through the exhaust heat exchanger (20). The air is supplied to the room through the air supply unit 70 through the air supply unit B. In this process, indoor air and outdoor air passing through the heat exchanger 20 are heat-exchanged through a heat exchange plate, as well as refrigerant circulation. As the air supplied to the room by the cycle is heat-exchanged again in the evaporator 100, more cooled air is discharged into the room through the air supply port 70.

이와 동시에, 상기 응축기(200)에서 발생된 응축열은 실외로 배출되는 공기에 의해 배기구(50)를 통해 실외로 배출된다.At the same time, the heat of condensation generated by the condenser 200 is discharged to the outside through the exhaust port 50 by the air discharged to the outside.

이상 살펴본 바와 같이 본 발명에 따르면, 전열교환기가 구비되어 환기되는 공기에 포함된 현열 및 잠열을 회수함으로써 에어컨을 냉방 효율을 극대화할 수 있는 효과가 있다.As described above, according to the present invention, there is an effect that can maximize the cooling efficiency of the air conditioner by recovering the sensible and latent heat contained in the air is provided with a heat exchanger.

이상에서는 본 발명을 특정의 바람직한 실시예에 대해서 도시하고 설명하였지만, 본 발명은 상술한 실시예에만 한정되는 것은 아니며, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 이하의 특허청구범위에 기재된 본 발명의 기술적 사상의 요지를 벗어나지 않고 얼마든지 다양하게 변경 실시할 수 있을 것이다.Although the present invention has been illustrated and described with respect to specific preferred embodiments, the present invention is not limited to the above-described embodiments, and those of ordinary skill in the art to which the present invention pertains should have the following claims. Various modifications can be made without departing from the spirit of the technical spirit of the invention described.

Claims (1)

소정형상의 몸체 내부 중앙에는 열교환이 이루어지는 전열교환기가 배치되고, 상기 전열교환기를 둘러싸며 설치된 다수개의 격막에 의해 서로 구획되어 각각 환기부, 급기부, 배기부 및 유입부가 형성되며, 상기 환기부, 급기부, 배기부 및 유입부와 각각 연통되는 환기구, 급기구, 배기구 및 유입구가 형성되고, 유입 및 배출되는 공기의 원활한 흐름을 유도하기 위해 상기 배기부에는 배기팬이 설치되며, 상기 유입부에는 급기팬이 설치된 폐열회수 환기장치가 구비되고, 상기 폐열회수 환기장치의 급기부 측의 상기 전열교환기 전방에는 액체상태의 냉매가스가 기체상태로 증발시키는 증발기가 설치되고, 상기 배기부 측의 상기 전열교환기 전방에는 고온ㆍ고압의 액체가스의 온도를 낮추는 응축기가 설치되며, 상기 증발기 및 응축기에 압축기 및 팽창밸브가 연결되어 냉매 순환 사이클을 형성하도록 된 것을 특징으로 하는 폐열회수를 겸한 에어컨.An electrothermal heat exchanger configured to exchange heat is disposed in a central portion of the body of a predetermined shape, and are partitioned from each other by a plurality of diaphragms provided surrounding the electrothermal heat exchanger to form a ventilation unit, an air supply unit, an exhaust unit, and an inlet unit, respectively. Ventilation ports, air supply ports, exhaust ports and inlets are formed to communicate with the air supply unit, the exhaust unit, and the inlet, respectively, and an exhaust fan is installed in the exhaust unit to induce a smooth flow of inflow and outflow air, A waste heat recovery ventilator provided with an air supply fan is provided, and an evaporator is installed in front of the heat exchanger on the air supply side of the waste heat recovery ventilator to evaporate a refrigerant gas in a liquid state into a gaseous state. In front of the exchanger, a condenser for lowering the temperature of the liquid gas of high temperature and high pressure is installed. Air conditioning valve is connected also serves as a waste-heat recovery, characterized in that to form the refrigerant circulation cycle.
KR1020040108368A 2004-12-18 2004-12-18 Air conditioner with waste heat recovery KR20060069704A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100816925B1 (en) * 2006-08-11 2008-03-27 엘지전자 주식회사 Apparatus for both ventilation and air conditioning
KR100834386B1 (en) * 2007-10-10 2008-06-04 주식회사 다안 Complex air-conditioner
KR100836219B1 (en) * 2007-10-10 2008-06-09 주식회사 다안 Complex air-conditioner
WO2009048212A1 (en) * 2007-10-10 2009-04-16 Daan Co., Ltd. Complex vent-conditioner
KR100916156B1 (en) * 2009-04-24 2009-09-08 주식회사 삼화에이스 Air conditioner
US10605469B2 (en) 2016-07-27 2020-03-31 Johnson Controls Technology Company System and method for capture of waste heat in an HVAC unit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100816925B1 (en) * 2006-08-11 2008-03-27 엘지전자 주식회사 Apparatus for both ventilation and air conditioning
KR100834386B1 (en) * 2007-10-10 2008-06-04 주식회사 다안 Complex air-conditioner
KR100836219B1 (en) * 2007-10-10 2008-06-09 주식회사 다안 Complex air-conditioner
WO2009048212A1 (en) * 2007-10-10 2009-04-16 Daan Co., Ltd. Complex vent-conditioner
KR100916156B1 (en) * 2009-04-24 2009-09-08 주식회사 삼화에이스 Air conditioner
US10605469B2 (en) 2016-07-27 2020-03-31 Johnson Controls Technology Company System and method for capture of waste heat in an HVAC unit

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