1
- 9
2-WAY MULTISET VRF SYSTEM
Address Settings
1
is blinking
LED 1
LED 2
(
: ON
: Blinking
: OFF)
Display meaning
After the power is turned ON (and automatic address setting is not in progress), no communication with the indoor
units in that system is possible.
After the power is turned ON (and automatic address setting is not in progress), 1 or more indoor units are
confirmed in that system; however, the number of indoor units does not match the number that was set.
Alternating
Alternating
Automatic address setting is in progress.
Automatic address setting completed.
Simultaneous
The number of indoor units did not match the number that was set.
Refer to “Table of Self-Diagnostic Functions and Description of Alarm Displays.”
Alarm display
LED 1 blinks M times, then LED 2 blinks N times. The cycle then repeats.
M = 2: P alarm 3: H alarm 4: E alarm 5: F alarm 6: L alarm
N
=
Alarm
No.
Example: LED 1 blinks 2 times, then LED 2 blinks 17 times. The cycle then repeats.
Alarm
is
“P05.”
Display during automatic address setting
On outdoor main unit PCB
LED
1
2
Blink alternately
Remote controller display
* Do not short-circuit the automatic address setting pin (CN100) again while automatic address set-
ting is in progress. Doing so will cancel the setting operation and will cause LEDs 1 and 2 to turn
OFF. (LED 1 is D72. LED 2 is D75.)
* When automatic address setting has been successfully completed, both LEDs 1 and 2 turn OFF.
If automatic address setting is not completed successfully, refer to the table below and correct the
problem. Then perform automatic address setting again.
3. Auto Address Setting
Request concerning recording the indoor/outdoor unit combination Nos. after automatic address setting has been
completed, be sure to record them for future reference.
Indicate the indoor/outdoor unit combination Nos. in a location which is easily visible on the indoor unit.
Example: (Outdoor) 1 – (Indoor) 1-1, 1-2, 1-3…
(Outdoor) 2 – (Indoor) 2-1, 2-2, 2-3…
These numbers are necessary for later maintenance. Please be sure to indicate them.
Display details of LEDs 1 and 2 on the outdoor unit control PCB
