E9 to E28 NKR Service Manual.pdf - Industrial Air

Remote Control Receiving Sound
o Normal Operation nanoe-G Operation : Beep
o Nanoe-G Operation Normal Operation : Beep
o Stop nanoe-G individual Operation : Beep
o Nanoe-G individual Operation Stop : Long Beep
Power failure
o During nanoe-G individual operation, if power failure occurs, after power resumes, nanoe-G individual
operation resumes immediately.
o During combination operation, if power failure occurs, after power resumes, combination operation resume
immediately.
o nanoe-G operation status is not memorized after OFF the unit. After OFF the unit, when the operation is ON
again, air conditioner operates without nanoe-G operation.
nanoe-G check mode
o To enable nanoe-G check mode, during nanoe-G operation ON:
o If there is abnormal discharge, nanoe-G indicator blinks immediately.
Error detection control
When nanoe-G indicator blinks, it indicates error listed below:
o nanoe-G connector at main PCB open
Judgment method
During nanoe-G operation, nanoe-G connector at main PCB is opened.
Troubleshooting method
Connect the connector or stop operation to cancel the blinking
o Abnormal discharge error
Judgment method
During nanoe-G operation, the nanoe-G system has abnormal discharge due to short-circuit caused
by water or dust adhesion and so forth, with Lo-feedback voltage (at microcontroller).
When abnormal discharge occurred, every 30 minutes the unit supplies power to the nanoe-G
system.
When abnormal discharge occurs for 24 times continuously, nanoe-G indicator blinks.
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