System for detecting mis-connected state between communication lines for multi-type air conditioner and method thereof

A system for detecting a mis-connected state between communication lines for a multi-type air conditioner comprises an indoor unit pipe temperature detection unit for detecting a temperature of an indoor unit pipe, and a microprocessor for controlling an opening of an electronic expansion valve base...

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Bibliographic Details
Main Author CHANG SE-DONG,KIM KWANG-WOON,LEE YOON-BEEN,KIM HYUNG-SOO,KIM SUNG-HWAN,OH JEONG-EON,CHOI JAE-HEUK,CHOI SONG
Format Patent
LanguageEnglish
Published 03.05.2006
Subjects
AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
RANGES
VENTILATING
WEAPONS
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Summary:A system for detecting a mis-connected state between communication lines for a multi-type air conditioner comprises an indoor unit pipe temperature detection unit for detecting a temperature of an indoor unit pipe, and a microprocessor for controlling an opening of an electronic expansion valve based on a temperature detected by the indoor unit pipe temperature detection unit, comparing a temperature response characteristic of the indoor unit pipe with a preset temperature response characteristic of a normal indoor unit pipe based on an opening of the electronic expansion valve, and thereby judging whether the communication lines are mis-connected to one another or not. An indoor unit from which the mis-connection has been generated is detected quickly, and error information is displayed. Accordingly, the mis-connected state between the communication lines can be restored, thereby preventing a damage of the system due to the mis-connection. Corresponding methods are also disclosed.
Bibliography:Application Number: CN200510118857