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ON-SITE SETTING AND OTHERS (Continued)
1.2 Forcible Defrost Setting by Remote Controller (wired R/C only)
Preliminary operation
1
Press , , and at the same time for 4 seconds or more in the OFF mode.
In the group control mode, the header unit number is displayed first.
2
Each pressing of indicates indoor unit number in the group sequentially.
Choose the main indoor unit (connected to the outdoor unit) for which forcible defrosting is to be
performed.
The fan and flap of the selected indoor unit start working.
3
Specify DN “8C” with buttons.
4
Set data 0001 with buttons. (Factory setting: 0000)
5
Press Indication on the LCD shows normal operation.
6
Press to return the operation mode to normal OFF.
Execution procedure
• Press
on the R/C.
• Choose HEAT operation mode.
• After a while, a forcible defrosting signal is transmitted to the outdoor unit. Upon receiving the signal, the
outdoor unit starts defrosting. It takes up to 12 minutes.
• On completion of defrosting, the indoor unit restart HEAT operation.
To reexecute defrosting, repeat steps from step
1
above.
Once forcible defrosting is performed, the above setting for forcible defrosting is reset.
1.3 Indication of Onboard LEDs
1. D02 (red)
Lights up by the control of main microcomputer when the indoor unit is powered on.
Blinks at intervals of one second (0.5-second on and off) when EEPROM is not mounted or write
error occurs.
Blinks at intervals of 10 seconds (5-second on and off) in the DISP mode. (CN72 short-circuited at
power on)
Blinks at intervals of 2 seconds (1-second on and off): Applicable unit in the EEPROM setting
(address, function selection, etc.) mode
2. D203 (red)
Lights up by hardware control when power is supplied to remote controller.
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