JPH0138231B2 - - Google Patents
Info
- Publication number
- JPH0138231B2 JPH0138231B2 JP56184519A JP18451981A JPH0138231B2 JP H0138231 B2 JPH0138231 B2 JP H0138231B2 JP 56184519 A JP56184519 A JP 56184519A JP 18451981 A JP18451981 A JP 18451981A JP H0138231 B2 JPH0138231 B2 JP H0138231B2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- hot water
- water
- heating
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 96
- 238000010438 heat treatment Methods 0.000 claims description 25
- 239000003507 refrigerant Substances 0.000 claims description 23
- 238000004378 air conditioning Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 239000008236 heating water Substances 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 238000010257 thawing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
- Nozzles (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Description
【発明の詳細な説明】
本発明は熱動機関駆動による冷房、暖房および
給湯を行なうことができる冷暖房給湯装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air-conditioning/heating-water supply device that can perform cooling, heating, and hot water supply by being driven by a thermal engine.
従来の空気調和装置には、例えば特開昭56−
960号公報に記載されているように、エンジンで
駆動される圧縮機、室内側熱交換器、室外側熱交
換器、膨張器、および四方弁より構成され、四方
弁により冷房時は室内側熱交換器を蒸発器、室外
側熱交換器を凝縮器として使用し、暖房時は室内
側熱交換器を凝縮器、室外側熱交換器を蒸発器と
して使用し、エンジンを冷却した温水が流れる原
動機冷却系統の補助熱交換器を室内側熱交換器と
室外側熱交換器のうち少なくとも一方側の近くに
設置したものがあり、また冷暖房給湯装置には特
開昭56−30567号公報に記載されているように、
エンジンで駆動される圧縮機を備えた冷暖房装置
と、前記エンジンの排熱を給湯熱源および前記冷
暖房装置の暖房補助熱源にする排熱利用熱交換器
とを具備したものがあるが、前者装置は給湯機能
を有しておらず、後者装置はエンジンの排熱のみ
を給湯熱源として利用するにとどまつており、い
ずれも有効な利用とは言い難かつた。また、いず
れも室内側には冷媒熱交換器とエンジン排熱用熱
交換器が配設されているためそれぞれ往復配管が
２本必要であり、計４本の配管を現地で接続しな
ければならなかつた。 Conventional air conditioners include, for example, JP-A-56-
As described in Publication No. 960, it consists of a compressor driven by an engine, an indoor heat exchanger, an outdoor heat exchanger, an expander, and a four-way valve. A prime mover that uses the exchanger as an evaporator and the outdoor heat exchanger as a condenser. During heating, the indoor heat exchanger is used as a condenser and the outdoor heat exchanger as an evaporator, and hot water that cools the engine flows through it. Some cooling system auxiliary heat exchangers are installed near at least one side of the indoor heat exchanger and the outdoor heat exchanger. As if
There is an air conditioning system equipped with a compressor driven by an engine, and an exhaust heat heat exchanger that uses the exhaust heat of the engine as a hot water supply heat source and a heating auxiliary heat source for the air conditioning system. It does not have a hot water supply function, and the latter device only uses the exhaust heat of the engine as a hot water heat source, and it is hard to say that either of these uses is effective. In addition, since a refrigerant heat exchanger and an engine exhaust heat heat exchanger are installed on the indoor side, two reciprocating pipes are required for each, and a total of four pipes must be connected on-site. Nakatsuta.
本発明の目的は、給湯熱源としてエンジンの排
熱の他にヒートポンプ式冷凍機の凝縮熱を利用し
て、両熱源による強力な加熱で瞬時に給湯取り出
しが行なえ、しかも現地接続配管を最少の２本に
抑えながらも暖房時排熱利用するエンジンの高温
排熱がヒートポンプ式冷凍機の暖房能力に悪影響
を及ぼさない高効果な冷暖房給湯装置を提供する
ことにあり、装置のユニツトを簡易化し、小型化
し、コストの低減、信頼性の向上、簡易化、メン
テナンス性の向上を図つたものである。 The purpose of the present invention is to use the condensation heat of a heat pump refrigerator in addition to the exhaust heat of the engine as a hot water supply heat source, to instantly take out the hot water with powerful heating from both heat sources, and to reduce the number of on-site connection pipes to a minimum of 2. Our goal is to provide a highly effective air-conditioning, heating, and hot-water supply system in which the high-temperature exhaust heat of the engine that uses exhaust heat during heating does not adversely affect the heating capacity of the heat pump refrigerator, while keeping the unit of the system simple and compact. The aim is to reduce costs, improve reliability, simplify the process, and improve maintainability.
その目的を達成するために、本発明による冷暖
房給湯装置は、熱動機関によつて駆動される冷媒
圧縮機と、温水用主熱交換器と、冷暖房時にそれ
ぞれ一方が凝縮器、他方が蒸発器として使用され
る室内用および室外用熱交換器とを有するヒート
ポンプ式冷媒回路と、前記熱動機関と、該機関か
らの高温排水を放熱する温水用補助熱交換器と、
この排水の熱を室外に排棄する室外用放熱器とを
有する排熱水回路と、前記温水用主熱交換器およ
び温水用補助熱交換器で加熱される温水器と、暖
房時前記温水器と並流し冷房時該温水器をバイパ
スして前記室内用熱交換器と熱交換される水側熱
交換器と、該熱交換器と並設された室内側熱交換
器とを有する循環水回路と、前記温水器で加熱さ
れ市水が加熱される給湯用加熱器を有する給湯回
路とから構成したものである。 In order to achieve the objective, the air conditioning/heating/water supply system according to the present invention includes a refrigerant compressor driven by a thermal engine, a main heat exchanger for hot water, and a condenser on one side and an evaporator on the other side during cooling/heating. a heat pump type refrigerant circuit having an indoor and an outdoor heat exchanger used as a heat exchanger;
a hot water exhaust circuit having an outdoor radiator for discharging the heat of the wastewater outdoors; a water heater heated by the main heat exchanger for hot water and the auxiliary heat exchanger for hot water; and the water heater for heating. A circulating water circuit comprising: a water-side heat exchanger that bypasses the water heater and exchanges heat with the indoor heat exchanger during parallel flow cooling; and an indoor-side heat exchanger installed in parallel with the heat exchanger. and a hot water supply circuit having a hot water heater for heating city water heated by the water heater.
以下本発明による冷暖房給湯装置の実施例につ
いて図面を参照して説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the air-conditioning, heating, and hot-water supply apparatus according to the present invention will be described below with reference to the drawings.
まずヒートポンプ式冷媒回路の構成について説
明する。熱動機関１で駆動される圧縮機２によつ
て圧縮された冷媒は四方弁３に至り、温水用主熱
交換器４を通つたのち、電磁弁５または膨張器６
のいずれかを経てフアン７を有する室外用熱交換
器８を通り、さらに電磁弁９または膨張器１０の
いずれかを経て室内用熱交換器１１を通つたのち
前記四方弁３に至り、アキユムレータ１２を経て
圧縮機２に戻るようになつており、その四方弁３
によつて前述の逆回りをするように切換えられ
る。 First, the configuration of the heat pump refrigerant circuit will be explained. The refrigerant compressed by the compressor 2 driven by the thermal engine 1 reaches the four-way valve 3, passes through the hot water main heat exchanger 4, and then passes through the solenoid valve 5 or the expander 6.
It passes through an outdoor heat exchanger 8 having a fan 7, then passes through an indoor heat exchanger 11 via either a solenoid valve 9 or an expander 10, and then reaches the four-way valve 3, where it passes through an accumulator 12. The four-way valve 3 returns to the compressor 2 through the
The rotation is switched in the opposite direction as described above.
つぎに熱動機関１の排熱水回路は、ポンプ１３
から送出され熱動機関１を冷却した循環水が触媒
マフラ１４、温水用補助熱交換器１５、フアン１
６を有する室外用放熱器１７を経てポンプ１３に
戻るように構成されている。 Next, the exhaust hot water circuit of the thermal engine 1 is connected to the pump 13
The circulating water that cools the thermal engine 1 is sent to the catalyst muffler 14, the hot water auxiliary heat exchanger 15, and the fan 1.
It is configured to return to the pump 13 via an outdoor radiator 17 having a radiator 6.
つぎに給湯回路は、市水給水配管１８から減圧
逆止弁１９を経て給湯用加熱器２０を通り、蛇口
２１に至るように構成されている。 Next, the hot water supply circuit is configured to run from the city water supply pipe 18, through the pressure reducing check valve 19, through the hot water heater 20, and then to the faucet 21.
つぎに、循環水回路は、循環水ポンプ２２から
送出された循環水２３の点で水側熱交換器２４を
通る回路２５と温水器２６、電磁弁２７を通る回
路２８とに分岐して、２９の点で合流してフアン
３０を有する室内側熱交換器３１を経てポンプ２
２に戻るように構成されている。尚、温水用主熱
交換器４、温水用補助熱交換器１５、給湯用加熱
器２０は蓄熱タンク状に形成された温水器２６内
に収納されている。３２は室内ユニツト、３３は
室外に据付けられる機械ユニツト、３４，３５は
現地で配管接続されるユニツト間配管である。 Next, the circulating water circuit branches at the point of the circulating water 23 sent out from the circulating water pump 22 into a circuit 25 passing through the water side heat exchanger 24 and a circuit 28 passing through the water heater 26 and the electromagnetic valve 27. 29 and passes through an indoor heat exchanger 31 having a fan 30 to the pump 2.
It is configured to return to 2. The hot water main heat exchanger 4, the hot water auxiliary heat exchanger 15, and the hot water heater 20 are housed in a water heater 26 formed in the shape of a heat storage tank. 32 is an indoor unit, 33 is a mechanical unit installed outdoors, and 34 and 35 are inter-unit piping connections that are connected on-site.
つぎに冷房、暖房、給湯、除霜のそれぞれの運
転時におけるヒートポンプ式冷媒回路、排熱水回
路、循環水回路、給湯回路のそれぞれの回路の作
動を説明する。 Next, the operations of the heat pump refrigerant circuit, hot water exhaust circuit, circulating water circuit, and hot water supply circuit during cooling, heating, hot water supply, and defrosting operations will be explained.
(1) 冷房運転時における作動
○イ 冷媒回路の説明
圧縮機２を出た冷媒は四方弁３を通り温水
用主熱交換器４に入り一次凝縮され電磁弁５
を通過して室外用熱交換器８に入る（フアン
７は運転）。その室外用熱交換器８で二次凝
縮された冷媒は膨張器１０に流れ膨張する。
膨張された冷媒は室内用熱交換器１１に入り
蒸発する。蒸発した冷媒は四方弁３を通つて
アキユムレータ１２を経て圧縮機２へ吸い込
まれる。(1) Operation during cooling operation ○B Explanation of refrigerant circuit The refrigerant that leaves the compressor 2 passes through the four-way valve 3 and enters the hot water main heat exchanger 4 where it is first condensed and passed through the solenoid valve 5.
and enters the outdoor heat exchanger 8 (fan 7 is in operation). The refrigerant that is secondarily condensed in the outdoor heat exchanger 8 flows into the expander 10 and is expanded.
The expanded refrigerant enters the indoor heat exchanger 11 and evaporates. The evaporated refrigerant is sucked into the compressor 2 through the four-way valve 3 and the accumulator 12.
○ロ 循環水回路の説明
循環水ポンプ２２により吐出された循環水
は水側熱交換器２４に入る（電磁弁２７によ
り直進回路は止まつておりＬ字型に曲る）。
ここで冷却された循環水は室内側熱交換器３
１に至る（フアン３０は運転）。ここで熱交
換された循環水は循環水ポンプ２２に戻る。 ○B Description of Circulating Water Circuit Circulating water discharged by the circulating water pump 22 enters the water side heat exchanger 24 (the straight circuit is stopped by the solenoid valve 27 and is bent into an L-shape).
The circulating water cooled here is transferred to the indoor heat exchanger 3.
1 (Juan 30 is driving). The circulating water that has undergone heat exchange here returns to the circulating water pump 22.
○ハ 排熱水回路の説明
ポンプ１３により吐出された冷却水は熱動
機関１を冷却し触媒マフラ１４に入り触媒マ
フラ１４にて排熱を吸収して温水用補助熱交
換器１５に入る。その温水用補助熱交換器１
５を出た冷却水は室外用放熱器１７にて熱交
換され（フアン１６は運転）、ポンプ１３へ
と流れる。冷房時における給湯はフアン１６
を停止して行なう。 C. Description of Exhaust Hot Water Circuit Cooling water discharged by the pump 13 cools the thermal engine 1, enters the catalyst muffler 14, absorbs exhaust heat in the catalyst muffler 14, and enters the hot water auxiliary heat exchanger 15. Auxiliary heat exchanger for hot water 1
The cooling water exiting the cooling water 5 undergoes heat exchange in the outdoor radiator 17 (the fan 16 is in operation), and flows to the pump 13. Hot water supply during cooling is fan 16
Stop and do it.
(2) 暖房運転時における作動
○イ 冷媒回路の説明
圧縮機２を出た冷媒は四方弁３を通り室内
用熱交換器１１に入り、凝縮された後膨張器
１０により膨張され室外用熱交換器８に入る
（フアン７は運転）。ここで一次蒸発した冷媒
は電磁弁５を通つて温水用熱交換器４で二次
蒸発し、四方弁３、アキユムレータ１２を経
て圧縮機２に吸い込まれる。(2) Operation during heating operation ○A Description of refrigerant circuit The refrigerant that leaves the compressor 2 passes through the four-way valve 3 and enters the indoor heat exchanger 11, where it is condensed and then expanded by the expander 10 for outdoor heat exchange. Enter device 8 (fan 7 is driving). The refrigerant that has been primarily evaporated here passes through the electromagnetic valve 5, undergoes secondary evaporation in the hot water heat exchanger 4, and is sucked into the compressor 2 via the four-way valve 3 and the accumulator 12.
○ロ 室内循環水回路の説明
循環水ポンプ２２により吐出した循環水は
２３で水側熱交換器２４方向と温水器２６方
向にわかれて各熱交換器にて熱交換され、温
水器２６の下流に設けられた電磁弁２７を過
ぎてから再び合流され、室内側熱交換器３１
に至る。ここで熱交換され（フアン３０は運
転）循環水ポンプ２２に戻る。従つて室内用
熱交換器１１は温水器２６と独立して水側熱
交換器２４と熱交換されるので室内用熱交換
器１１での冷媒凝縮温度を低く抑えることが
でき、ヒートポンプ式冷凍機の成績系数を向
上することができる。 ○B Description of the indoor circulating water circuit The circulating water discharged by the circulating water pump 22 is divided into the water side heat exchanger 24 direction and the water heater 26 direction at 23, heat exchanged in each heat exchanger, and then downstream of the water heater 26. After passing through the solenoid valve 27 provided in the
leading to. Here, heat is exchanged (the fan 30 is in operation) and the water returns to the circulating water pump 22. Therefore, since the indoor heat exchanger 11 exchanges heat with the water-side heat exchanger 24 independently of the water heater 26, the refrigerant condensation temperature in the indoor heat exchanger 11 can be kept low, and the heat pump type refrigerator You can improve your grades.
○ハ 排熱水回路の説明
冷房運転時に同じであるがポンプ１６は停
止状態にしておく。 ○C Explanation of the hot water exhaust circuit Same as when operating the air conditioner, but keep the pump 16 in a stopped state.
(3) 給湯運転時における作動
○イ 冷媒回路の説明
圧縮機２を出た冷媒は四方弁３を通り温水
用主熱交換器４に入り凝縮した後、膨張器６
で膨張され室外用熱交換器８に入る。ここで
蒸発され（フアン７は運転）、電磁弁９を通
り室内用熱交換器１１に入る。この熱交換器
は通過するだけである。通過した冷媒は四方
弁３を用りアキユムレータ１２を経て圧縮機
２に吸い込まれる。(3) Operation during hot water supply operation ○A Description of refrigerant circuit The refrigerant that leaves the compressor 2 passes through the four-way valve 3 and enters the hot water main heat exchanger 4, where it is condensed and then transferred to the expander 6.
It is expanded and enters the outdoor heat exchanger 8. Here, it is evaporated (fan 7 is in operation) and passes through the solenoid valve 9 and enters the indoor heat exchanger 11. This heat exchanger is only passed through. The passed refrigerant is sucked into the compressor 2 via the accumulator 12 using the four-way valve 3.
○ロ 循環水回路は使わない。 ○B Circulating water circuit is not used.
○ハ 排熱水回路の説明 暖房運転時と同じである。 ○C Explanation of hot water exhaust circuit This is the same as during heating operation.
(4) 除霜運転時における作動
○イ 冷媒回路の説明
暖房運転時、外気温低下により室外用熱交
換器８に着霜が生じると冷房運転に切換え、
室外用熱交換器８の除霜を行なう。(4) Operation during defrosting operation A. Explanation of the refrigerant circuit During heating operation, when frost forms on the outdoor heat exchanger 8 due to a drop in outside temperature, the system switches to cooling operation.
The outdoor heat exchanger 8 is defrosted.
○ロ 排熱水回路の説明 暖房運転時と同じである。 ○B Explanation of exhaust hot water circuit This is the same as during heating operation.
○ハ 循環水回路の説明
暖房運転時と同じである。尚、室内用熱交
換器１１が蒸発器となるが、温水用補助熱交
換器１５にて排熱で加熱され２９の点で合流
して室内側熱交換器３１に送り込まれるので
冷風は出ない。 ○C Explanation of circulating water circuit Same as during heating operation. In addition, although the indoor heat exchanger 11 becomes an evaporator, it is heated by exhaust heat in the hot water auxiliary heat exchanger 15, merges at point 29, and is sent to the indoor heat exchanger 31, so no cold air is emitted. .
本発明による冷暖房給湯装置は、前述のように
構成されているので、下記の効果がある。 Since the air conditioning/heating/hot water supply device according to the present invention is configured as described above, it has the following effects.
(1) 室内用熱交換器を設けたことによりチラー方
式となり、室内機への配管は循環水用の水配管
だけですむので、据付工事が簡略化でき、さら
に室内機は市販のフアンコイルが使用できるの
で安価でメンテナンスが容易になり、また暖房
時暖房水循環回路が２系統となり暖房時冷媒回
路の凝縮温度を低く抑えることができ成績係数
が向上する。(1) By installing an indoor heat exchanger, it becomes a chiller type, and the only piping required to connect the indoor unit is water piping for circulating water, simplifying the installation work. Since it can be used, it is inexpensive and maintenance is easy, and since there are two heating water circulation circuits during heating, the condensation temperature of the refrigerant circuit during heating can be kept low, improving the coefficient of performance.
(2) 弁類が極力少ない構成になつているので信頼
性が向上される。(2) Reliability is improved because the number of valves is minimized.
図面は本発明による冷暖房給湯装置のヒートポ
ンプ式冷媒回路、熱動機関排熱水回路、給湯回路
および循環水回路の構成を示す系統図である。
１…熱動機関、２…圧縮機、４…温水用主熱交
換器、８…室外用熱交換器、１１…室内用熱交換
器、１５…温水用補助熱交換器、１７…室外用放
熱器、２０…給湯用加熱器、２４…水側熱交換
器、２６…温水器、３１…室内側熱交換器。
The drawing is a system diagram showing the configuration of a heat pump type refrigerant circuit, a thermal engine exhaust hot water circuit, a hot water supply circuit, and a circulating water circuit of the air conditioning/heating and hot water supply system according to the present invention. 1... Thermal engine, 2... Compressor, 4... Main heat exchanger for hot water, 8... Heat exchanger for outdoor use, 11... Heat exchanger for indoor use, 15... Auxiliary heat exchanger for hot water, 17... Heat radiation for outdoor use 20... hot water heater, 24... water side heat exchanger, 26... water heater, 31... indoor side heat exchanger.
Claims (1)
温水用主熱交換器と、冷暖房時にそれぞれ一方が
凝縮器、他方が蒸発器として使用される室内用お
よび室外用熱交換器とを有するヒートポンプ式冷
媒回路と、前記熱動機関と、該機関からの高温排
水を放熱する温水用補助熱交換器と、この排水の
熱を室外に排棄する室外用放熱器とを有する排熱
水回路と、前記温水用熱交換器および温水用補助
熱交換器で加熱される温水器と、暖房時前記温水
器と並流し冷房時該温水器をバイパスして前記室
内用熱交換器と熱交換される水側熱交換器と、該
熱交換器と並設された室内側熱交換器とを有する
循環水回路と、前記温水器で加熱され市水が加熱
される給湯用加熱器を有する給湯回路とからなる
冷暖房給湯装置。 ２ 室内側熱交換器を水側熱交換器と分離接続し
た特許請求の範囲第１項記載の冷暖房給湯装置。[Claims] 1. A refrigerant compressor driven by a thermal engine;
A heat pump type refrigerant circuit having a main heat exchanger for hot water, an indoor heat exchanger and an outdoor heat exchanger in which one is used as a condenser and the other is used as an evaporator during cooling and heating, the thermal engine, and from the engine. a hot water auxiliary heat exchanger for dissipating heat from high-temperature wastewater; and an outdoor radiator for discharging the heat of the wastewater outdoors; and the hot water heat exchanger and the hot water auxiliary heat exchanger. a water-side heat exchanger that flows in parallel with the water heater during heating, bypasses the water heater and exchanges heat with the indoor heat exchanger during cooling, and is installed in parallel with the heat exchanger. An air conditioning/heating water supply system comprising a circulating water circuit having an indoor heat exchanger and a hot water supply circuit having a hot water heater that heats city water heated by the water heater. 2. The air-conditioning/heating/water supply device according to claim 1, wherein the indoor heat exchanger is connected separately to the water-side heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56184519A JPS5886368A (en) | 1981-11-19 | 1981-11-19 | Air-conditioning hot-water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56184519A JPS5886368A (en) | 1981-11-19 | 1981-11-19 | Air-conditioning hot-water supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5886368A JPS5886368A (en) | 1983-05-23 |
| JPH0138231B2 true JPH0138231B2 (en) | 1989-08-11 |
Family
ID=16154612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56184519A Granted JPS5886368A (en) | 1981-11-19 | 1981-11-19 | Air-conditioning hot-water supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5886368A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63113268A (en) * | 1986-10-29 | 1988-05-18 | 大和興産株式会社 | Waste heat-temperature difference combination drive type heater |
-
1981
- 1981-11-19 JP JP56184519A patent/JPS5886368A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5886368A (en) | 1983-05-23 |
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