Patent ID: 7765812
Filing Date: 2010-08-03
Classification: F24F,F25B

Abstract:
1. A system for detecting a mis-connected state between communication lines of a multi-type air conditioner, comprising: an indoor unit pipe temperature detection unit for detecting a temperature of an indoor unit pipe, the indoor unit pipe temperature detection unit including: 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 the opening of the electronic expansion valve, and thereby judging whether communication lines are mis-connected to one another; a display unit for outputting error information indicating a mis-connected state between the communication lines; and a storage unit for storing a preset temperature response characteristic of the indoor unit pipe according to an opening of the electronic expansion valve.