Refrigeration – With indicator or tester – Condition sensing
Reexamination Certificate
2005-05-13
2009-11-24
Norman, Marc E (Department: 3744)
Refrigeration
With indicator or tester
Condition sensing
C062S130000, C062S175000, C236S00100H
Reexamination Certificate
active
07621138
ABSTRACT:
Disclosed are an abnormal state detecting apparatus of a multi-type air conditioner and a method thereof. The method comprises: a user's selecting a test operation, and then detecting plural indoor temperatures of indoor zones where a plurality of indoor units are installed and plural outdoor temperatures of outdoor zones where a plurality of outdoor units are installed; selecting a corresponding test operation mode among a plurality of test operation modes preset according to an average indoor temperature of the detected plural indoor temperatures and an average outdoor temperature of the detected plural outdoor temperatures; test-operating the multi-type air conditioner according to the selected test operation mode, and collecting data showing an operation state of the test-operated air conditioner; and comparing the collected data with a preset reference data and judging an abnormal state of the multi-type air conditioner based on the comparison result.
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English Language Abstract of JP 58-075649.
English Language Abstract of JP 57-131953.
Chang Se-Dong
Choi Song
Chung Baik-Young
Lee Yoon-Been
KED & Associates LLP
LG Electronics Inc.
Norman Marc E
LandOfFree
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