CN108759065B - Heat exchange system of multi-split air conditioner and air conditioner - Google Patents
Heat exchange system of multi-split air conditioner and air conditioner Download PDFInfo
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- CN108759065B CN108759065B CN201810621546.7A CN201810621546A CN108759065B CN 108759065 B CN108759065 B CN 108759065B CN 201810621546 A CN201810621546 A CN 201810621546A CN 108759065 B CN108759065 B CN 108759065B
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
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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
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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Abstract
The invention provides a heat exchange system of a multi-split air conditioner and the air conditioner, wherein the heat exchange system of the multi-split air conditioner comprises an outdoor unit assembly and an indoor unit assembly, the indoor unit assembly comprises a plurality of fan coils, each fan coil is provided with a water inlet and a water outlet, and the plurality of fan coils are connected in parallel; the outdoor unit assembly comprises a water inlet pipe and a water outlet pipe, the water inlet pipe is communicated with a water outlet of the fan coil to input water output by the fan coil into the outdoor unit for heat exchange, and the water outlet pipe is communicated with a water inlet of the fan coil to convey the water subjected to heat exchange by the outdoor unit into the fan coil; the indoor unit assembly further comprises a wire controller, the outdoor unit assembly further comprises a control unit, and the control unit is connected with the wire controller so as to transmit parameters for controlling the running of the fan coil to the wire controller; the air conditioner comprises the heat exchange system of the multi-split air conditioner. The invention can shorten the product development period and reduce the cost.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a heat exchange system of a multi-split air conditioner and the air conditioner.
Background
The multi-split air conditioner is commonly called as 'one split multiple', and refers to an air conditioning system in which one outdoor unit is connected with two or more indoor units through a pipe, the outdoor side adopts an air-cooled or water-cooled heat exchange mode, and the indoor side adopts direct evaporation heat exchange. The multi-split air conditioner system has the advantages of being capable of achieving communication between the indoor unit and the outdoor unit, achieving zone control, being flexible to use and achieving obvious energy saving when parts of the indoor unit and the outdoor unit are in accordance with each other, and is increasingly widely applied to small and medium-sized buildings and parts of public buildings at present.
However, the air conditioner using the multi-split air conditioner system has obvious disadvantages: because a plurality of indoor units of different models need to be installed, and the indoor unit and the outdoor unit are different in online mode, on one hand, the product development period is long, reliability tests such as long and short piping and height drop are needed, generally, a set of brand new system takes at least about 10 months, moreover, the reliability of the whole system is affected by the change of the form of the indoor unit, the verification workload is large, on the other hand, the outdoor unit and the indoor unit are fixedly matched, the indoor unit needs to be purchased from a plurality of online manufacturers, and the cost is too high.
Disclosure of Invention
Aiming at the technical problems of the existing multi-split air conditioner, the invention provides a heat exchange system of the multi-split air conditioner, which can shorten the product development period and reduce the cost, and an air conditioner using the heat exchange system.
In order to achieve the purpose, the invention adopts the technical scheme that:
the heat exchange system of the multi-split air conditioner comprises an outdoor unit assembly and an indoor unit assembly, wherein the outdoor unit assembly can be arranged in an outdoor unit, the indoor unit assembly can exchange heat with indoor air, the indoor unit assembly comprises a plurality of fan coils, each fan coil is provided with a water inlet and a water outlet, and the plurality of fan coils are connected in parallel; the outdoor unit assembly comprises a water inlet pipe and a water outlet pipe, the water inlet pipe is communicated with a water outlet of the fan coil to input water output by the fan coil into the outdoor unit for heat exchange, and the water outlet pipe is communicated with a water inlet of the fan coil to convey the water subjected to heat exchange by the outdoor unit to the inside of the fan coil; the indoor unit assembly further comprises a wire controller capable of detecting the water flow temperature and the air return temperature of the fan coil, the wire controller is connected with the fan coil to control the operation of the fan coil, the outdoor unit assembly further comprises a control unit, the control unit is connected with the wire controller to acquire temperature information, and then parameters for controlling the operation of the fan coil are transmitted to the wire controller according to the temperature information.
Preferably, the indoor unit assembly further comprises a plurality of adjusting parts, the adjusting parts are connected between the fan coil and the outdoor unit assembly, the adjusting parts are arranged in a plurality corresponding to the fan coils so as to respectively adjust the water flow rate inside each fan coil, and the line controller is connected with the adjusting parts so as to control the adjusting parts to adjust the water flow rate inside the fan coils.
Preferably, the fan coil comprises a fan, the wire controller is electrically connected with the fan to control the rotating speed of the fan, and the control unit transmits the parameters for controlling the fan to the wire controller according to the temperature information.
Preferably, the outdoor unit assembly further comprises a refrigerant water heat exchanger through which a refrigerant flows, and the water inlet pipe and the water outlet pipe are both communicated with the refrigerant water heat exchanger so as to convey water of the fan coil into the refrigerant water heat exchanger to exchange heat with the refrigerant and convey water in the refrigerant water heat exchanger back to the fan coil.
Preferably, the indoor unit assembly further comprises a water mixing tank, the water mixing tank is provided with two paths of passages, two ends of one path of the water mixing tank are respectively communicated with the water inlet of the fan coil and the water outlet of the fan coil, so that one path of circulating water path is formed between the water mixing tank and the fan coil, and two ends of the other path of the water mixing tank are respectively communicated with the water inlet pipe and the water outlet pipe, so that the other path of circulating water path is formed between the water mixing tank and the outdoor unit assembly.
Preferably, the outdoor unit assembly further includes a compressor, and the control unit is electrically connected to the compressor to control an operating frequency of the compressor according to the temperature signal.
Preferably, the outdoor unit assembly further includes a four-way valve, and the control unit is electrically connected to the four-way valve to control a state of the four-way valve according to the temperature signal.
Preferably, the indoor unit assembly further comprises a first water pump, the first water pump is connected with the fan coil to drive water flow in the fan coil to move, and the line controller is electrically connected with the first water pump to control operation of the first water pump.
Preferably, the outdoor unit assembly further includes a second water pump, and the control unit is electrically connected to the second water pump to control the operation of the second water pump
The air conditioner comprises a heat exchange system, wherein the heat exchange system is the heat exchange system of the multi-split air conditioner.
Compared with the prior art, the invention has the advantages and positive effects that:
1. according to the heat exchange system of the multi-split air conditioner, the indoor tail end is arranged as the fan coil to replace an indoor unit adopted by the existing multi-split air conditioner, so that compared with the existing multi-split air conditioner, on one hand, the heat exchange system is simple in structure, short in product development period, free of reliability tests such as long and short tubing, high and low fall and the like, on the other hand, the refrigerant pipe connection is replaced by waterway connection, the construction of the refrigerant pipe on site is less, the product development period is obviously shortened, and the cost is reduced.
2. According to the heat exchange system of the multi-split air conditioner, the adjusting part is arranged, so that the water flow in each fan coil is independently adjusted, the water path of the fan coil which is not opened is in a closed state, and the water path of the opened fan coil is balanced under the adjustment of the adjusting part, so that the condition that a plurality of fan coils are poor in effect when operated at the same time due to unbalanced water power is effectively improved, the requirement on the balance of the water power during the site water path construction is further reduced, and the site construction efficiency is further improved.
3. According to the heat exchange system of the multi-split air conditioner, the water mixing tank is arranged, the circulating water paths are respectively formed between the water mixing tank and the fan coil, and between the water mixing tank and the outdoor unit assembly, the two circulating water paths are independent, the respective flow rates of the two circulating water paths are controlled by the booster pump in the water mixing tank, when the number of the opened fan coils is small, the flow rate of the circulating water path between the water mixing tank and the fan coil is small, and most of water circulates in the circulating water path between the water mixing tank and the outdoor unit assembly.
Drawings
FIG. 1 is a schematic structural diagram of a heat exchange system of a multi-split air conditioner according to the present invention;
FIG. 2 is a schematic diagram of the circuit connection relationship of the heat exchange system of the multi-split air conditioner of the present invention;
fig. 3 is a schematic circuit connection relationship diagram of a heat exchange system of a multi-split air conditioner according to the present invention when a plurality of line controllers are provided;
in the above figures: 1. an outdoor unit assembly; 2. an indoor unit assembly; 3. a fan coil; 4. a water inlet pipe; 5. a water outlet pipe; 6. a wire controller; 7. a control unit; 8. an adjustment member; 9. a fan; 10. a refrigerant water heat exchanger; 11. a water mixing tank; 12. a compressor; 13. a four-way valve; 14. a first water pump; 15. a second water pump; 16. a throttling device; 17. an outdoor side heat exchanger.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it is to be noted that: (1) the electrical connection can be wired connection or wireless connection; (2) the positional or positional relationships indicated by "inner", "outer", "upper", "lower", "front", "rear", and the like are those illustrated in the drawings, which are merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention; (3) the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, a heat exchange system of a multi-split air conditioner comprises an outdoor unit assembly 1 which can be arranged inside an outdoor unit, and an indoor unit assembly 2 which can exchange heat with indoor air, wherein the indoor unit assembly 2 comprises a fan coil 3, the fan coil 3 is provided with a water inlet and a water outlet, the fan coils 3 are multiple, the fan coils 3 are connected in parallel, and the fan coils 3 are selected for indoor heat exchange, so that the heat exchange system has the advantages of mature and multiple types of products, convenience in market purchase, large choice of users, convenience in installation of a waterway system, and no refrigerant pipe construction on site; the outdoor unit assembly 1 comprises a water inlet pipe 4 and a water outlet pipe 5, the water inlet pipe 4 is communicated with a water outlet of the fan coil 3 so as to input water output by the fan coil 3 into the outdoor unit for heat exchange, and the water outlet pipe 5 is communicated with a water inlet of the fan coil 3 so as to convey the water subjected to heat exchange by the outdoor unit into the fan coil 3; in order to realize the communication between the indoor unit assembly 2 and the outdoor unit assembly 1, referring to fig. 2 and 3, the indoor unit assembly 2 further comprises a wire controller 6 capable of detecting the temperature of water flow in and out of the fan coil 3 and the temperature of return air, the wire controller 6 is connected with the fan coil 3 to control the operation of the fan coil 3, the outdoor unit assembly 1 further comprises a control unit 7, the control unit 7 is connected with the wire controller 6 to acquire temperature information, and then parameters for controlling the operation of the fan coil 3 are transmitted to the wire controller 6 according to the temperature information.
According to the heat exchange system of the multi-split air conditioner, the fan coil 3 is arranged at the indoor tail end, an indoor unit adopted by the existing multi-split air conditioner is replaced, and meanwhile, the communication function of the multi-split air conditioner is kept, so that compared with the existing multi-split air conditioner, on one hand, the heat exchange system is simple in structure, short in product development period, free of reliability tests such as long and short distribution pipes and high and low fall, on the other hand, the refrigerant pipe connection is replaced by the waterway connection, the construction of the on-site refrigerant pipe is less, and therefore the product development period is remarkably shortened and the cost is.
It should be noted that, for the structure of the fan coil 3, which includes the fan 9, the motor and the coil, since the structure of the fan 9, the motor and the coil and the connection relationship therebetween are known to those skilled in the art, the present invention will not be described herein again.
To the relation of being connected of drive-by-wire 6 and fan coil 3, it can be: as shown in fig. 2, the wire controller 6 is electrically connected to the fan 9 to control the rotation speed of the fan 9, and the control unit 7 transmits the parameter for controlling the fan 9 to the wire controller 6 according to the temperature information; as shown in fig. 3, the number of the line controllers 6 is plural, and the plural line controllers 6 are provided in one-to-one correspondence with the fan coils 3 to individually detect and control the respective fan coils 3.
In order to avoid the situation that when a plurality of fan coils 3 are operated simultaneously due to unbalanced water power, several fan coils 3 have poor effects, as shown in fig. 1, the indoor unit assembly 2 further includes an adjusting member 8 (e.g., a solenoid valve), the adjusting member 8 is connected between the fan coils 3 and the outdoor unit assembly 1, the adjusting member 8 is provided in a plurality corresponding to the fan coils 3 to respectively adjust the amount of water flow inside each fan coil 3, and the line controller 6 is connected with the adjusting member 8 to control the adjusting member 8 to adjust the degree of water flow inside the fan coils 3.
According to the heat exchange system of the multi-split air conditioner, the adjusting part 8 is arranged, so that the water flow in each fan coil 3 is independently adjusted, the water paths of the fan coils 3 which are not opened are in a closed state, and the water paths of the opened fan coils 3 are balanced under the adjustment of the adjusting part 8, so that the condition that several fan coils 3 are poor in effect when the fan coils 3 are operated at the same time due to unbalanced water power is effectively improved, the requirement on the balance of the water power during the site water path construction is further reduced, and the site construction efficiency is further improved.
When the number of the opened fan coils 3 is small (for example, only one fan coil 3 is opened), the flow rate of the waterway inside the outdoor unit assembly 1 is small, which easily results in the waterway detection device (Q in fig. 1)m) An alarm occurs. Based on this, in order to avoid the above situation, as shown in fig. 1, the indoor unit assembly 2 further includes a water mixing tank 11, the water mixing tank 11 has two paths, two ends of one path of the water mixing tank 11 are respectively communicated with the water inlet of the fan coil 3 and the water outlet of the fan coil 3, so as to form one path of circulating water path between the water mixing tank 11 and the fan coil 3, and two ends of the other path of the water mixing tank 11 are respectively communicated with the water inlet pipe 4 and the water outlet pipe 5, so as to form another path of circulating water path between the water mixing tank 11 and the outdoor unit assembly 1 (specifically, the refrigerant water heat exchanger 10).
According to the heat exchange system of the multi-split air conditioner, the water mixing tank 11 is arranged, the circulating water paths are respectively formed between the water mixing tank 11 and the fan coil 3 as well as between the water mixing tank 11 and the outdoor unit assembly 1, the two circulating water paths are independent, the respective flow rates of the two circulating water paths are controlled by the booster pump in the water mixing tank 11, when the number of the opened fan coils 3 is small (for example, only one fan coil 3 is opened), the water flow rate in the circulating water path between the water mixing tank 11 and the fan coil 3 is small, most of water circulates in the circulating water path between the water mixing tank 11 and the outdoor unit assembly 1, so that the invention realizes that the water paths of the fan coil 3 and the outdoor unit assembly 1 are not interfered with each other, avoids the phenomenon that the water flow is small due to the small number of the opened fan coils 3, and then the water flow detection device acts to give an alarm, and further ensures that the air conditioner unit has low load in, Normal operation under the condition of starting few indoor machines.
In addition, as shown in fig. 1, the indoor unit assembly 2 further includes a first water pump 14, the first water pump 14 is connected to the fan coil 3 to drive the movement of water flow inside the fan coil 3, and the line controller 6 is further electrically connected to the first water pump 14 to control the operation of the first water pump 14.
As shown in fig. 1, the outdoor unit assembly 1 further includes a compressor 12, a four-way valve 13, a second water pump 15, a throttling device 16 (e.g., an electronic expansion valve), an outdoor heat exchanger 17, and a heat dissipation fan (not shown), wherein, during cooling, the compressor 12 compresses refrigerant into high-temperature and high-pressure vapor, and provides power for the whole refrigeration loop, the outdoor heat exchanger 17 is matched with a heat radiation fan to realize heat exchange with the outside air, and then the liquid refrigerant is prepared, the control unit 7 is electrically connected with the compressor 12, the four-way valve 13, the second water pump 15 and the throttling device 16, and the structures of the compressor 12, the four-way valve 13, the second water pump 15, the throttling device 16, the outdoor heat exchanger 17, the cooling fan and the control unit 7 and the connection relationship among the structures are known to those skilled in the art, so that the present invention is not described herein again.
As further shown in fig. 1, the outdoor unit assembly 1 further includes a refrigerant water heat exchanger 10 through which a refrigerant flows, that is, the refrigerant water heat exchanger 10 is disposed inside an outdoor unit of the air conditioner, so that there is no refrigerant pipe between the indoor unit and the outdoor unit, thereby further improving the efficiency of site operation, the refrigerant water heat exchanger 10 has four ports, which are a first port, a second port, a third port and a fourth port, respectively, wherein: a water channel is formed between the first port and the second port, the first port is communicated with the water inlet pipe 4, and the second port is communicated with the water outlet pipe 5, so that water of the fan coil 3 is conveyed into the refrigerant water heat exchanger 10 to exchange heat with the refrigerant, and cold water in the refrigerant water heat exchanger 10 is conveyed back to the fan coil 3; a refrigerant passage is formed between the third port, which communicates with the four-way valve 13, and the fourth port, which communicates with the throttle device 16, to form a circuit for circulating and transporting the refrigerant inside the outdoor unit.
For the communication between the indoor unit and the outdoor unit of the air conditioner, the communication method specifically comprises the following steps: as shown in fig. 2, the control unit 7 transmits the parameters for controlling the adjusting part 8, the rotating speed of the fan 9 and the operating parameters for controlling the first water pump 14 to the wire controller 6 according to the parameters (such as the water inlet temperature, the water outlet temperature and the air return temperature) of the fan coil 3 detected by the wire controller 6, so that the wire controller 6 controls the adjusting part 8, the fan 9 and the first water pump 14 according to the parameters; the control unit 7 is further electrically connected to the compressor 12, the four-way valve 13, the second water pump 15 and the throttle device 16, so as to control the operating frequency of the compressor 12, the state of the four-way valve 13 and the operation of the second water pump 15 according to the parameters of the fan coil 3.
An air conditioner comprises a heat exchange system of a multi-split air conditioner, the specific structure of the heat exchange system of the multi-split air conditioner refers to the above embodiments, and the air conditioner adopts all technical schemes of all the above embodiments, so that all beneficial effects brought by the technical schemes of the above embodiments are at least achieved, and the details are not repeated.
Based on the above, the air conditioner provided by the invention has the following advantages by arranging the heat exchange system of the multi-split air conditioner: (1) the structure is simple, the product development period is short, and reliability tests such as long and short piping and high and low fall are not needed; (2) construction without refrigerant pipes on site; (3) the situation that a plurality of fan coils are poor in effect when the fan coils run simultaneously due to unbalanced hydraulic power is effectively improved, and the requirement for balanced hydraulic power during site waterway construction is further reduced; (4) the fan coil water path and the outdoor unit assembly water path are not interfered with each other, so that the phenomenon that the action of the water flow detection device gives an alarm due to the fact that the number of the fan coil units 3 is small when the fan coil units are started is avoided, and normal operation of the air conditioner unit under the condition of low load and few indoor unit opening is further guaranteed.
Claims (8)
1. The utility model provides a heat transfer system of multi-split air conditioner, is including setting up in inside off-premises station subassembly (1) of off-premises station to and carry out indoor set subassembly (2) of heat transfer with the room air, its characterized in that:
the indoor unit assembly (2) comprises a plurality of fan coils (3), each fan coil (3) is provided with a water inlet and a water outlet, and the fan coils (3) are connected in parallel;
the outdoor unit assembly (1) comprises a water inlet pipe (4) and a water outlet pipe (5), the water inlet pipe (4) is communicated with a water outlet of the fan coil (3) so as to input water output by the fan coil (3) into the outdoor unit for heat exchange, and the water outlet pipe (5) is communicated with a water inlet of the fan coil (3) so as to convey the water subjected to heat exchange by the outdoor unit to the inside of the fan coil (3);
the indoor unit assembly (2) further comprises a wire controller (6) for detecting the temperature of water flow in and out of the fan coil (3) and the temperature of return air, the wire controller (6) is connected with the fan coil (3) to control the operation of the fan coil (3), the outdoor unit assembly (1) further comprises a control unit (7), the control unit (7) is connected with the wire controller (6) to acquire temperature information, and then parameters for controlling the operation of the fan coil (3) are transmitted to the wire controller (6) according to the temperature information;
the outdoor unit assembly (1) further comprises a refrigerant water heat exchanger (10) in which a refrigerant flows, the water inlet pipe (4) and the water outlet pipe (5) are communicated with the refrigerant water heat exchanger (10) so as to convey water of the fan coil (3) into the refrigerant water heat exchanger (10) to exchange heat with the refrigerant, and convey water in the refrigerant water heat exchanger (10) back to the fan coil (3);
the indoor unit assembly (2) further comprises a water mixing tank (11), the water mixing tank (11) is provided with two paths of passages, two ends of one path of the water mixing tank (11) are respectively communicated with a water inlet of the fan coil (3) and a water outlet of the fan coil (3) so as to form one path of circulating water path between the water mixing tank (11) and the fan coil (3), and two ends of the other path of the water mixing tank (11) are respectively communicated with the water inlet pipe (4) and the water outlet pipe (5) so as to form the other path of circulating water path between the water mixing tank (11) and the outdoor unit assembly (1).
2. The heat exchange system of a multi-split air conditioner as claimed in claim 1, wherein: the indoor unit assembly (2) further comprises an adjusting piece (8), the adjusting piece (8) is connected between the fan coil (3) and the outdoor unit assembly (1), the adjusting piece (8) is arranged in a plurality corresponding to the fan coil (3) to respectively adjust the water flow inside the fan coil (3), and the line controller (6) is connected with the adjusting piece (8) to control the adjusting piece (8) to adjust the water flow inside the fan coil (3).
3. The heat exchange system of a multi-split air conditioner as claimed in claim 1, wherein: the fan coil (3) comprises a fan (9), the wire controller (6) is electrically connected with the fan (9) to control the rotating speed of the fan (9), and the control unit (7) transmits parameters for controlling the fan (9) to the wire controller (6) according to temperature information.
4. A heat exchange system of a multi-split air conditioner as set forth in any one of claims 1 to 3, wherein: the outdoor unit assembly (1) further comprises a compressor (12), and the control unit (7) is electrically connected with the compressor (12) so as to control the working frequency of the compressor (12) according to the temperature signal.
5. The heat exchange system of a multi-split air conditioner as claimed in claim 4, wherein: the outdoor unit assembly (1) further comprises a four-way valve (13), and the control unit (7) is electrically connected with the four-way valve (13) so as to control the state of the four-way valve (13) according to a temperature signal.
6. A heat exchange system of a multi-split air conditioner as set forth in any one of claims 1 to 3, wherein: the indoor unit assembly (2) further comprises a first water pump (14), the first water pump (14) is connected with the fan coil (3) to drive water flow inside the fan coil (3) to move, and the line controller (10) is electrically connected with the first water pump (14) to control operation of the first water pump (14).
7. A heat exchange system of a multi-split air conditioner as set forth in any one of claims 1 to 3, wherein: the outdoor unit assembly (1) further comprises a second water pump (15), and the control unit (7) is electrically connected with the second water pump (15) to control the operation of the second water pump (15).
8. An air conditioner, characterized in that: the multi-split air conditioner comprises a heat exchange system, wherein the heat exchange system is the heat exchange system of the multi-split air conditioner as claimed in any one of claims 1 to 7.
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| CN201810621546.7A CN108759065B (en) | 2018-06-15 | 2018-06-15 | Heat exchange system of multi-split air conditioner and air conditioner |
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| CN201810621546.7A CN108759065B (en) | 2018-06-15 | 2018-06-15 | Heat exchange system of multi-split air conditioner and air conditioner |
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| CN108759065B true CN108759065B (en) | 2020-10-27 |
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| JP7360285B2 (en) * | 2019-09-17 | 2023-10-12 | 東芝キヤリア株式会社 | air conditioner |
| CN110822778A (en) * | 2019-11-27 | 2020-02-21 | 四川川润液压润滑设备有限公司 | Multi-path pressure flow constant water cooling system for test platform and application method thereof |
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| JP2002340373A (en) * | 2001-05-16 | 2002-11-27 | Mitsubishi Electric Corp | Water-type heating-cooling combination system |
| CN104949195B (en) * | 2014-03-25 | 2017-11-14 | 珠海格力电器股份有限公司 | Multi-connected air conditioning unit |
| CN206145846U (en) * | 2016-09-29 | 2017-05-03 | 上海开装建筑科技有限公司 | Miniature central air conditioning of components of a whole that can function independently multiple and control system thereof |
| CN206572678U (en) * | 2017-03-24 | 2017-10-20 | 湖北华洋环境科技有限公司 | A kind of water-cooled multi-connected air-conditioning system |
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