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公开(公告)号：EP2792968B1
公开(公告)日：2020-04-15
申请号：EP11877194.8
申请日：2011-12-16
IPC分类号： F24F110/12 , F25B13/00 , F25B25/00
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公开(公告)号：EP2570740B1
公开(公告)日：2019-02-27
申请号：EP10851347.4
申请日：2010-05-12
发明人： KOGE, Hirofumi , KAWAGOE, Tomokazu , AZUMA, Koji
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3.发明公开
公开(公告)号：EP2787297A1
公开(公告)日：2014-10-08
申请号：EP11876522.1
申请日：2011-11-30
CPC分类号： F28F27/02 , F24F3/065 , F24F11/30 , F24F11/62 , F25B13/00 , F25B25/005 , F25B45/00 , F25B49/005 , F25B2313/003 , F25B2313/0231 , F25B2339/047 , F25B2500/19 , F25D17/02
摘要： A method for selecting a heat medium of each use side heat exchanger in installing an air-conditioning system includes: a first step of determining power required for use side heat exchangers corresponding to a plurality of air-conditioned spaces; a second step of calculating a total refrigerant amount required when a refrigerant is circulated through all the use side heat exchangers having the determined power; a third step of calculating a refrigerant concentration when the total refrigerant amount leaks to each air-conditioned space using the refrigerant, for each air-conditioned space; a fourth step of determining the refrigerant concentration for each air-conditioned space exceeds a predetermined limit concentration; a fifth step of, when there are any air-conditioned spaces exceeding the limit concentration in the fourth step, selecting, as a nontoxic medium, the circulation heat medium of the use side heat exchanger installed in one of the air-conditioned spaces; and a sixth step of calculating a total refrigerant amount required when the refrigerant is circulated through all the use side heat exchangers other than the use side heat exchanger selected for the nontoxic medium, as the total refrigerant amount in the third step.
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公开(公告)号：EP2716997A1
公开(公告)日：2014-04-09
申请号：EP11866029.9
申请日：2011-05-26
IPC分类号： F25B1/00
CPC分类号： F25B13/00 , F25B25/005 , F25B2313/0231 , F25B2313/0272 , F25B2313/02732 , F25B2313/02741 , F25B2313/0312 , F25B2500/26
摘要： In an air-conditioning apparatus 100, a controller 50 performs a pressure variation suppressing operation for suppressing a pressure variation on the side of a refrigerant circuit A by controlling a heat medium flow control device 34b to be slightly opened so as to allow a certain amount of heat medium to flow through a use-side heat exchanger 35b before the use-side heat exchanger 35b starts operation or performs switching of an operation mode.
摘要翻译： 在空气调节装置100中，控制器50通过控制热介质流量调整装置34b稍微打开而进行用于抑制制冷剂回路A侧的压力变动的压力变动抑制运转， 在利用侧热交换器35b开始运转之前使热介质在利用侧热交换器35b中流通，或者进行运转模式的切换。
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公开(公告)号：EP3859224A1
公开(公告)日：2021-08-04
申请号：EP18935195.0
申请日：2018-09-28
发明人： TAKENAKA, Naofumi , KADOWAKI, Kimitaka , WASHIYAMA, Hiroki , MOTOMURA, Yuji , FURUYA, Koji , NISHIO, Jun , AZUMA, Koji
摘要： An air-conditioning apparatus includes: a heat-medium transfer device including a pump provided to transfer a heat medium that contains water or brine and transfers heat; a plurality of indoor units each of which includes an indoor heat exchanger provided to cause heat exchange to be performed between indoor air and the heat medium, and a flow control valve provided to adjust a flow rate of the heat medium that flows through the indoor heat exchanger, the plurality of indoor units being connected to the heat-medium transfer device by respective heat medium pipes; and a controller provided to control an opening degree of the flow control valve. The controller determines a valve opening-degree control range that is a control range of an opening degree of the flow control valve of each indoor unit, based on a flow-passage resistance depending on a length of a pipe that extends from the heat-medium transfer device to the indoor unit, such that the lower the flow-passage resistance, the smaller the valve opening-degree control range.
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公开(公告)号：EP2722608B1
公开(公告)日：2020-12-02
申请号：EP12800116.1
申请日：2012-05-23
发明人： AZUMA, Koji , SHIMAMOTO, Daisuke , MORIMOTO, Osamu
IPC分类号： F24F11/00
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公开(公告)号：EP2878902B1
公开(公告)日：2020-09-09
申请号：EP12881820.0
申请日：2012-07-24
IPC分类号： F24F140/30 , F25B13/00 , F25B9/00 , F25B49/02
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公开(公告)号：EP2868992A1
公开(公告)日：2015-05-06
申请号：EP12876971.8
申请日：2012-05-14
CPC分类号： F25B49/02 , F24F11/36 , F25B13/00 , F25B25/005 , F25B2313/006 , F25B2313/0231 , F25B2313/0233 , F25B2313/02741 , F25B2313/02791 , F25B2600/13 , F25D17/02 , F25D17/04 , Y02B30/745
摘要： An air-conditioning apparatus is provided to which, even when a heat medium leaks from a heat medium circuit for some reason and air enters the heat medium circuit, the heat medium circuit can be automatically refilled with the heat medium before a pump is heated and damaged.
When it is determined that a rotational speed of a pump is higher than an upper rotational speed limit, the controller 60 determines that the heat medium is leaking from the heat medium circuit and performs a heat-medium-introducing and air-purging control process.摘要翻译： 提供一种空气调节装置，即使在热介质由于某种原因而从热介质回路泄漏并且空气进入热介质回路的情况下，也能够在加热泵之前自动补充热介质回路， 破损。 控制部60在判定为泵的转速比上限转速高的情况下，判定为热介质从热介质回路泄漏，进行热介质导入排气控制处理。
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公开(公告)号：EP3859244A1
公开(公告)日：2021-08-04
申请号：EP18935245.3
申请日：2018-09-28
IPC分类号： F25B47/02
摘要： An air-conditioning apparatus includes: a plurality of outdoor units each including a compressor and an outdoor heat exchanger, refrigerant flowing through the plurality of outdoor units; an indoor unit including an indoor heat exchanger, a heat medium flowing through the indoor unit; a plurality of relay devices to which the plurality of outdoor units are connected independently, and to which the indoor unit is connected, each of the plurality of relay devices including a heat medium heat exchanger configured to exchange heat between the refrigerant and the heat medium; and a controller configured to control action of the plurality of outdoor units, the indoor unit, and the plurality of relay devices, wherein the controller includes a defrost determination unit configured to determine necessity for a defrosting operation, a load determination unit configured to compare, in a case where the defrosting operation is necessary, an indoor unit total load with an outdoor unit total capacity, and an equipment control unit configured to control an operating frequency of the compressor of an outdoor unit other than the outdoor unit on which the defrosting operation is to be performed such that the outdoor unit total capacity is increased in a case where the indoor unit total load is greater than the outdoor unit total capacity.
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