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1.When the wired remote control or the indoor unit microcomputer has failed,but all other components work if you set the
switch(SWE,SW6) on the indoor control board,the indoor unit will begin properly Emergency Operation.
2.When you activate emergency operation of the cooling, you have to set the connector(SWE) and switch(SW6)on the
indoor controller.
SWE:ON • Indoor fan is running high speed.
SW6-1:ON • Emergency operation of cooling mode.
3.Before you activate emergency operation,check the following points:
(1)Emergency operation cannot be activated when:
• the outdoor unit malfunctions.
• the indoor fan malfunctions.
(2)Emergency operation becomes continuous only by switching the power source on/off. ON/OFF on the remote
control or temperature control etc. does not function.
(3)Emergency cooling should be limited to 10 hours maximum
(The indoor unit heat exchanger may freeze).
(4)After emergency operation has been deactivated,set the switches etc. to their original positions.
7-5-3. When wired remote controller or indoor unit micro computer troubles
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