Daitsu FDLA-09, Installation, Operation & Service Manual

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Page 45 of 59
SK2015 SWC ‐ V ‐ EC ‐ 001
D.4.4. Control Logic
1. Power On Setting
When any fan speed is selected, the unit is turned on. When all of the fan speed inputs (H/M/L) are off, the unit is
turned off.
2. Swing / Louver
When the unit is turned on, the louver will open to the largest angle at 100º, then move to the operating angle at 87 º.
When the unit is turned off, the louver will close.
3. Signal Input
When Auto speed is turned ON, the unit is turned on and the motor runs at 200 RPM. EC motor RPM will be changed
by the signal voltage.
D.4.5. LED Indication
For all units
Power / Operation LED light (both green)
Unit on Operation LED On, Power LED Off
Unit in standby Power LED On, Operation LED Off
D.4.6. Error Description
For all units ‐ Operation LED light (Green)
Item Blink Reason Remedy
Indoor coil sensor 1
failure
Green LED blinks 4
times, stops for 3s
Ti1 sensor connection is
unplugged or damaged.
1. Check if Ti1 plug is connected or not.
2. Check if sensor’s resistance is correct or
not.
EC motor failure
Green LED blinks 9
times, stops for 3s
No EC motor feedback
1. Check if EC motor’s wires are connected.
2. Check the EC motor