Multi-split system and medium-pressure controlling method thereof

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United States of America Patent

PATENT NO 10612799
SERIAL NO

15329939

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Abstract

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A multi-split system and a medium-pressure controlling method thereof. The multi-split system includes an outdoor unit, a distribution device, and a plurality of indoor units. The distribution device includes a gas-liquid separator, a first heat exchange assembly, a first electronic expansion valve, a second heat exchange assembly and a second electronic expansion valve. The distribution device is configured to perform a routine correction on a medium-pressure control target value of the first electronic expansion valve according to the subcooling degree of the heating indoor unit, the outlet air temperature of the heating indoor unit and the opening of the throttling element in the heating indoor unit, and to correct a current medium-pressure control target value of the first electronic expansion valve according to a preset step when the opening of the throttling element reaches a maximum opening or a minimum opening and lasts for a first preset time.

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Patent Owner(s)

Patent OwnerAddress
MIDEA GROUP CO LTDB26-28F MIDEA HEADQUARTERS BUILDING NO 6 MIDEA AVENUE BEIJIAO SHUNDE FOSHAN 528311
GD MIDEA HEATING & VENTILATING EQUIPMENT CO LTD528311 PENGLAI ROAD INDUSTRIAL AVENUE BEIJIAO TOWN SHUNDE DISTRICT FOSHAN CITY GUANGDONG PROVINCE FOSHAN CITY GUANGDONG PROVINCE 528311

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Yueming Guangdong, CN 93 214
Luo, Bin Guangdong, CN 79 231

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