Air-conditioning system
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United States of America Patent
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Apr 14, 2020
Grant Date -
Jan 18, 2018
app pub date -
Mar 31, 2015
filing date -
Mar 31, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A controller of an indoor unit included in an air-conditioning system determines whether or not a communication error with the outdoor unit is an energization error that only occurs during an energization time in which electric power is fed from a commercial power supply to the outdoor unit. The controller can also determine whether or not the communication error is a connection establishment error that occurs at a time of establishing a connection with the outdoor unit. Based on determining the cause of the communication error with the outdoor unit, the controller can drive a fan by electric power fed from an emergency power supply.
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