Gree Electric Appliances, Inc. of Zhuhai

Gree Electric Appliances (wuhan) Co., Ltd

Lianfa Wu

Shiqiang Zhang

Huachao Jiao

Jianguo Xiong

Tao Feng

Bing Zhou

Limin Li

Peng Cao

Yuhai Su

Hua Liu

Handong Xue

Donghui Li

Bo Qiu

Zhiguang Huang

Mengmeng Jin

Han Gao

Tian Qiu

Chuantao Shen

Fan Fan

The disclosure provides a defrosting control method and device and a multi-split air conditioner. The defrosting control method including: controlling the multi-split air conditioner to enter a continuous heating and defrosting mode under a condition that any external unit meets the preset defrosting condition; detecting sequentially whether the each external unit in the multi-split air conditioner is currently in a frostless state; marking directly a currently detected external unit as having finished defrosting under a condition that the currently detected external unit is currently in a frostless state; defrosting the currently detected external unit under a condition that the currently detected external unit is currently in a frosted state, and marking the currently detected external unit as having finished defrosting after defrosting; and controlling the multi-split air conditioner to exit the mode under a condition that all the external units are marked as having finished defrosting.

Defrosting control method and device, and multi-split air conditioner

Disclosed are a method and device for controlling pressure of units with height drop, and an air conditioner device. The method includes: monitoring an operating mode of the unit; obtaining an operating parameter corresponding to the operating mode according to the operating mode; and adjusting an opening degree of an electronic expansion valve according to the operating parameter.

Method and device for controlling pressure of units with height drop, and air conditioner device

An air conditioning system, comprising an outdoor unit and an indoor heat exchange mechanism. The indoor heat exchange mechanism comprises an air conditioner indoor unit and a first heat exchange mechanism used for at least one among water cooling, water heating and space heating. The present air conditioning system integrates various functions into one, such as air-conditioning refrigeration, air-conditioning heating, producing household cold water, producing household hot water, and home heating by means of connecting indoor units for cooling and heating, a water cooling mechanism, a water heating mechanism and a device for floor heating located indoors to one outdoor unit. Moreover, the system directly utilizes high-temperature refrigerant to heat water for floor heating.

Air conditioning system

A control method, a control device for starting an air conditioner, a storage medium, and an air conditioner are disclosed. The method includes the step of acquiring current temperature variation information of a weather in an environment of the air conditioner and current startup parameters of the air conditioner. The method further includes the step of controlling operation parameters of the air conditioner according to the current temperature variation information and the current startup parameters of the air conditioner.

Control method, control device for starting air conditioner, storage medium and air conditioner

An air conditioning system, including a compressor, two outdoor heat exchange units, a liquid pipe used for communicating with indoor units, a high-pressure gas tube and a low-pressure gas tube; the air conditioning system further includes a valve assembly. One outdoor heat exchange unit has a first state in which one end thereof communicates with the high-pressure gas tube and another end thereof communicates with the liquid pipe, and has a second state in which one end thereof communicates with the low-pressure gas tube and the other end thereof communicates with the liquid pipe. Further disclosed is a control method for the air conditioning system.

Air conditioning system and control method for air conditioning system

The present disclosure relates to a control method and a control device of an air conditioning system, and an air conditioning system, and relates to the technical field of air conditioners: the method includes: determining whether piping length compensation is required; if the piping length compensation is required, acquiring one or more metric parameters; and determining a compensation value according to the one or more metric parameters, and adjusting an operating state of the air conditioning system according to the compensation value.

Control method and device of air conditioning system and air conditioning system

The present disclosure relates to a method and device of combining outdoor units and rotating operation of outdoor units, and MSAC system, and relates to the field of unit technology. The method includes: determining a plurality of combination manners of the outdoor units, according to a capacity of an indoor unit currently turned on and a capacity of each of the outdoor units; sequencing the plurality of combination manners in priority, according to priority strategies; and sequentially rotating the outdoor units to operate, based on the sequenced combination manners.

Method and device of combining outdoor units and rotating operation of outdoor units and MSAC system

The present disclosure relates to a method of controlling operation state of multi-split air conditioner and system, and a heat pump multi-split. The control method includes: determining a target operation mode of each indoor unit according to an operation mode set by a user for the indoor unit; performing statistics on heat exchange demands of the indoor units corresponding to different target operation modes, and determining a dominant operation mode among the target operation modes according to the heat exchange demands; and using the dominant operation mode as the operation mode of an outdoor unit.

Method and system of controlling operation state of multi-split air conditioner, and heat pump multi-split air conditioner

The present disclosure discloses a control method for a multi-split air conditioning system and a multi-split air-conditioning system, the multi-split air conditioning system, including a compressor and a plurality of indoor units respectively arranged on a plurality of parallel branches, the indoor unit including a fan and the control method including: in a cooling mode, when the multi-split air conditioning system needs oil return, the multi-split air conditioning system opening a branch where an indoor unit in an off state is located, determining whether the indoor unit has reached a dewing condition, opening the branch on which the indoor unit is located, and controlling the fan of the indoor unit according to a determination result.

Growing community of inventors

Zhuhai, China

Lianfa Wu