52
K
(2) LED Indicator Messages on Outdoor Control PCB
Power ON sequence
1. No communication from indoor units in system
2. Communication received from 1 or more indoor units in system
3. Regular communication OK (Capacity and unit quantity match)
If it is not possible to
advance to 3, repeats 1
→
2.
At 3, changes to normal
control.
P03
Normal operation
Pre-trip (insufficient gas)
Pre-trip (P20)
Pre-trip (other)
Automatic address setting in progress
Automatic address setting alarm (E15)
Automatic address setting alarm (E20)
Automatic address setting alarm (Other than E15 and E20)
Note:
This table shows example alarms. Other alarms
may also be displayed.
(0.25/0.75)
(0.75/0.25)
EEPROM error (F31)
Blinking alternately
Blinking simultaneously
Blinking simultaneously
Blinking simultaneously
Alarm
LED 1 blinks M times, then LED 2 blinks N times.
The cycle then repeats.
M = 2: P alarm
6: L alarm
N = Alarm No.
* Refer to
“
1. Examples of alarm display
”
below.
3: H alarm 4: E alarm 5: F alarm
Alternate blinking during alarms
Insufficient gas indicator
(0.25/0.75)
(0.75/0.25)
(0.25/0.75)
(0.75/0.25)
Refrigerant recovery mode
Automatic address setting
Displayed during automatic
address setting 1 and initial
communication. After these are
completed, alarm F31 is displayed.
P03
P04
P05
P31
H01
H02
H03
•
E04
•
F07
•
L13
•
( Blinks 2 times )
(
"
)
(
"
)
(
"
)
(Blinks 3 times)
(
"
)
(
"
)
•
(Blinks 4 times)
•
(Blinks 5 times)
3
(Blinks 6 times)
•
(Blinks 3 times)
(Blinks 4 times)
(Blinks 5 times)
(Blinks 31 times)
(Blinks 1 times)
(Blinks 2 times)
(Blinks 3 times)
(Blinks 4 times)
(Blinks 7 times)
(Blinks 13 times)
Alarm / Display
LED 1
Alternately
→
→
LED 2
ON
:
:
:
LED 1
LED 2
Remarks
OFF
(3) Examples of alarm display (other than E15, E16, and E20)
Blinking (0.25/0.75)
indicates that the lamp illuminates for 0.25 seconds, and then is OFF for 0.75 seconds.
Unless otherwise indicated, the blinking is (0.5/0.5).
04-393 DC INV Tech p 45-63 12/13/04 11:34 AM Page 52
