Low temperature antifreeze protection method and multi-connected air conditioner
A multi-connected air conditioner and antifreeze protection technology, which is applied in heating methods, mechanical equipment, lighting and heating equipment, etc., can solve the problem of inability to achieve low temperature antifreeze protection in terminal rooms, and achieve the effect of achieving low temperature antifreeze protection and improving comfort.
Active Publication Date: 2021-11-19
SICHUAN HONGMEI INTELLIGENT TECH CO LTD
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Problems solved by technology
[0004] It can be seen from the above description that the multi-connected air-conditioning system in the prior art mainly adjusts the evaporation temperature of the refrigeration indoor unit by controlling the low-temperature refrigeration antifreeze module, but the above-mentioned method cannot realize the low-temperature antifreeze protection of the terminal room.
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[0071] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.
[0072] Such as figure 1 As shown, the embodiment of the present invention provides a low-temperature antifreeze protection method, which is applied to multi-connected air-conditioning equipment, including:
[0073] Step 101: Determine the outdoor ambient temperature where the outdoor host of the multi-connected air conditioner is located, wherein the m...
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The invention provides a low-temperature antifreeze protection method and a multi-connected air conditioner. The method includes: determining the outdoor ambient temperature where the outdoor host of the multi-connected air conditioner is located, wherein the multi-connected air conditioner includes an outdoor host and at least one indoor unit. , the outdoor host can control at least one indoor unit; determine at least one terminal room corresponding to at least one indoor unit of the multi-connected air conditioner, wherein one indoor unit corresponds to one terminal room; determine whether the outdoor ambient temperature is lower than the preset first The protection threshold, wherein the first protection threshold is used to indicate that the outdoor host needs to control at least one indoor unit to be protected to be in heating mode; when it is determined that the outdoor ambient temperature is lower than the preset first protection threshold, control at least one indoor unit to be protected The machine is in the heating mode, so that at least one terminal room to be protected is in a low temperature antifreeze protection state. This scheme can realize the low temperature antifreeze protection of the terminal room.
Description
technical field [0001] The invention relates to the technical field of air-conditioning equipment, in particular to a low-temperature antifreeze protection method and multi-connected air-conditioning equipment. Background technique [0002] With the implementation of the national coal-to-electricity strategy, the use of heat pump air conditioners for heating in low-temperature and ultra-low temperature areas in China is increasing, and central heating is generally used. If air-conditioning is used for central heating, it is necessary to comprehensively consider energy consumption and low-temperature antifreeze protection of terminal rooms, so as to improve the comfort of customers using heat pump air conditioners for heating in winter. [0003] The Chinese patent application document with the patent application number 201810635734.5 discloses a three-tube heat recovery multi-connection system and its control method. The system can judge whether the evaporation temperature of...
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IPC IPC(8): F24F11/41F24F11/56F24F11/64F24F11/65F24F11/80F24F11/88F24F110/10F24F110/12
CPCF24F11/41F24F11/56F24F11/64F24F11/65F24F11/80F24F11/88F24F2110/10F24F2110/12
Inventor 赵寰郎胡彭操四胜刘启武张东王映娟夏伟
Owner SICHUAN HONGMEI INTELLIGENT TECH CO LTD