Panasonic U-4LE1E5 Service Manual page 15

3. Auto Address Setting
3-2. Automatic Address Setting from the Remote Controller *
Selecting each refrigerant system individually for automatic address setting
---Automatic address setting for each system: Item code "A1"
Press the remote controller timer time
(Press and hold for 4 seconds or longer.)
Next, press either the temperature setting
(Check that the item code is "A1.")
Use either the
perform automatic address setting.
Then press the
(Automatic address setting for one refrigerant system begins.)
(When automatic address setting for one system is completed,
the system returns to normal stopped status.)
<Approximately 4 – 5 minutes is required.>
(During automatic address setting, "
remote controller. This message disappears when automatic
address setting is completed.)
1
Repeat the same steps to perform automatic address setting for each
successive system.
3-3. Display during automatic address setting
On outdoor unit PCB
1
2
LED
Blink alternately
Display details of LEDs 1 and 2 on the outdoor unit control PCB
( : ON : Blinking
LED 1 LED 2
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.
Automatic address setting is in progress.
Alternating
Automatic address setting completed.
At time of automatic address setting, the
number of indoor units did not match the
number that was set.
Simultaneous
are operating) indication appears on the
display.
Refer to Table of Self-Diagnostic Functions
and Description of Alarm Displays.
Alternating
button and
or button to set the system No. to
button.
" is displayed on the
* Do not short-circuit the automatic address setting pin (CN-A.ADD) again while automatic address
setting is in progress.
Doing so will cancel the setting operation and will cause LEDs 1 and 2 to turn OFF.
* When automatic address setting has been successfully completed, both LEDs 1 and 2 turn OFF.
* LED 1 is D302. LED 2 is D303.
* If automatic address setting is not completed successfully, refer to the table below and correct
the problem. Then perform automatic address setting again.
: OFF)
Display meaning
(when indoor units
button at the same time.
or button.
NOTE
indicates that the solenoid is fused or that there
is a CT (current detection circuit) failure (current is
detected when the compressor is OFF).
Remote controller display during automatic setting
1-10
Mini VRF SYSTEM
Address Settings
is blinking