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12-1-3. LED Display on P.C. Board
1. D501 (Red)
• It goes on (Goes on by operation of the main microcomputer) at the same time when the power supply is
turned on.
• It flashes with 1-second interval (every 0.5 second): When there is no EEPROM or writing-in operation fails.
• It flashes with 10-seconds interval (every 5 second): During DISP mode
• It flashes with 2-seconds interval (every 1 second): While setting of function select (EEPROM)
2. D403 (Red)
• It goes on when power supply of the remote controller is turned on. (Lights on hardware)
3. D503 (Yellow): Main bus communication
• It goes on for 5 seconds in the first half of communication with the central controller.
4. D504 (Green): Sub bus communication
• It flashes for 5 seconds in the first half of communication with the remote controller. (Group master unit)
• It flashes with 0.2-second interval (for 0.1 second) for 5 second in the latter half of communication between
master and follower in the Gr indoor unit.
5. D14 (Orange)
• It flashes while receiving the serial signal from the outdoor unit. (Hardware)
6. D15 (Green)
• It flashes while sending the serial signal to the outdoor unit. (Hardware)
12-1-4. Function Selection Setup
<Procedure> Perform setting while the air conditioner stops.
1 Push
TEST
+
SET
+
CL
buttons simultaneously for 4 seconds or more.
The first displayed unit No. is the master indoor unit address in the group control.
In this time, fan and louver of the selected indoor unit operate.
ò
2 Every pushing
UNIT LOUVER
button (button at left side), the indoor unit No. in the group control is
displayed one after the other. In this time, fan and louver of the selected indoor unit only operate.
ò
3 Using the set temperature
TEMP.
buttons, specify the item code (DN).
ò
4 Using the timer time
TIME
buttons, select the set data.
ò
5
Push
SET
button. (OK if indication lights)
• To change the selected indoor unit, proceed to Procedure 2 .
• To change item to be set up, proceed to Procedure 3 .
ò
6 Pushing
TEST
button returns the status
to the normal stop status.
1 2 3 4 5 6
END
<Operation procedure>
3
6
1
4
5
2
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER