Central air conditioning system and control method thereof

A central air-conditioning system and control method technology, applied in the direction of air-conditioning systems, refrigerators, heating methods, etc., can solve the problems of poor cooling and heating effects, and achieve the effect of intimate design and broad market

Pending Publication Date: 2020-02-07
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the heat exchange medium in the fan coil unit is water, under the same condi

Method used

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  • Central air conditioning system and control method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 As shown, this embodiment provides a central air-conditioning system, including an air-conditioning external unit 1, a refrigerant distributor 2, a hot and cold water generator 3, a heating device 4, a fan coil unit 5, and an air-conditioning internal unit 6. Further, the air-conditioning The indoor unit 6 is any one of the air duct indoor unit, the patio indoor unit and the seat crane indoor unit. The heating device 4 is floor heating or a radiator; The cold and hot water generator 3 communicates with the fan coil unit 5 and the heating device 4 through pipes, and the air conditioner internal unit 6 is connected with the refrigerant distributor 2 through pipes.

[0038] In a preferred embodiment, the air conditioner external unit 1 includes a heat exchanger 13, a refrigerant adjustment tank 14, a gas-liquid separator 12, a compressor 11, and a four-way valve 15, and one end of the heat exchanger 13 communicates with the refrigerant distributor 2 throug...

Embodiment 2

[0059] The difference between this embodiment and Embodiment 1 is that the installation and matching method of a central air-conditioning system in this embodiment is as follows: the indoor unit of the seat crane and the floor heater (or radiator) are installed in the same room, and further, the indoor unit of the seat crane can be Choose from seat or ceiling mounts.

[0060] Under the above-mentioned installation and matching method, a control method of a central air-conditioning system includes the following steps:

[0061] Heating steps:

[0062] (1) The user turns on the machine for heating, and opens the four-way valve 15, so that D-E is connected and C-S is connected;

[0063] (2) The refrigerant evaporates in the heat exchanger 13, enters the gas-liquid separator 12 through C-S for gas-liquid separation, and then enters the compressor 11 for compression, and then enters the refrigerant distributor 2 through D-E. At this time, the heating electronic expansion valve 16 ...

Embodiment 3

[0076] The difference between the present embodiment and the first embodiment lies in that the installation and collocation of a central air-conditioning system in the present embodiment is as follows: fan coil unit 5 and floor heating (or radiator) are installed in the same room.

[0077] Under the above-mentioned installation and matching method, a control method of a central air-conditioning system includes the following steps:

[0078] Heating steps:

[0079] (1) The user turns on the machine for heating, and opens the four-way valve 15, so that D-E is connected and C-S is connected;

[0080] (2) The refrigerant evaporates in the heat exchanger 13, enters the gas-liquid separator 12 through C-S for gas-liquid separation, and then enters the compressor 11 for compression, and then enters the refrigerant distributor 2 through D-E. At this time, the heating electronic expansion valve 16 maintain a certain opening;

[0081] (3) The pressure value of the inlet valve 21 is P1,...

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Abstract

The invention discloses a central air conditioning system. The central air conditioning system comprises an air conditioner outdoor unit, a refrigerant distributor, a cold and hot water generator, a heating device, a fan coil and an air conditioner inner unit, wherein the refrigerant distributor is communicated with the air conditioner outdoor unit through a pipeline, the cold and hot water generator is communicated with the refrigerant distributor through the pipeline, the cold and hot water generator is respectively communicated with the fan coil and the heating device through the pipeline,and the air conditioner inner unit is connected with the refrigerant distributor through the pipeline. The central air conditioning system can effectively achieve the effect of all-round refrigerationand heating.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a central air conditioning system and a control method thereof. Background technique [0002] The traditional household water machine produces cold and hot water at a certain temperature through the external unit and the hot and cold water generator, and passes the cold and hot water into the fan coil unit or the radiator or floor heating installed in the home to realize the cooling and heating functions . [0003] When cooling, the fan coil unit is in operation; when heating, radiators or floor heating are generally used, but users can also choose whether to turn on the fan coil unit for heating at the same time according to their needs. Since the heat exchange medium in the fan coil unit is water, under the same conditions, compared with the fluorine machine, its cooling and heating effects are poor. Contents of the invention [0004] One of the objectives of the p...

Claims

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Application Information

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IPC IPC(8): F24F3/00F24F11/89F25B13/00F25B43/00F25B41/06F25B41/34
CPCF24F3/00F24F11/89F25B13/00F25B43/00F25B41/31
Inventor 耿媛媛李华松张世航卢浩贤何林
Owner GREE ELECTRIC APPLIANCES INC
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