Patent ID: 7621138
Filing Date: 2009-11-24
Classification: F24F,F25B

Abstract:
1. An abnormal state detecting apparatus of a multi-type air conditioner, the apparatus comprising: a plurality of indoor temperature sensors that detect indoor temperatures; a plurality of outdoor temperature sensors that detect outdoor temperatures; and a micro computer that determines an abnormal state of the multi-type air conditioner by selecting a test operation mode from a plurality of preset test operation modes, the selected test operation mode corresponding to a previously detected indoor temperature and a previously detected outdoor temperature, by test-operating the multi-type air conditioner according to the selected test operation mode, by collecting data showing an operation state of the test-operated air conditioner, and then by comparing the collected data with preset reference data, wherein the plurality of test operation modes correspond to first to sixth zones, each of the first through sixth zones having different test operation modes, wherein the first through the sixth zones are divided based on an average indoor temperature of a plurality of indoor temperatures detected by the plurality of indoor temperature sensors and an average outdoor temperature of a plurality of outdoor temperatures detected by the plurality of outdoor temperatures.