Display during automatic address setting
● On outdoor main unit PCB
2
1
LED
* Do not short-circuit the automatic address setting pin (CN054) 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.
Blink alternately
* When automatic address setting has been successfully completed, both LEDs 1 and 2 turn OFF.
* LED 1 is D023. LED 2 is D024.
* If automatic address setting is not completed successfully, refer to the table below and correct the problem. Then perform automatic
address setting again.
● Display details of LEDs 1 and 2 on the outdoor unit control PCB
(
: ON
: Blinking
: OFF)
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
"
" (when indoor units are operating) indication appears on the display.
Refer to "Table of Self-Diagnostic Functions and Description of Alarm Displays."
Alternating
Note: "
" indicates that the solenoid is fused or that there is a CT detection current failure (current is detected when the compressor
is OFF).
● Remote controller display
SETTING
is blinking
SUPPLEMENT
Display meaning
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Request concerning recording the indoor/outdoor unit combination Nos.
After automatic address setting has been completed, be sure to record them for future reference.
List the outdoor main unit system address and the addresses of the indoor units in that system in an easily visible location (next
to the nameplate), using a permanent marking pen or similar means that cannot be abraded easily.
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.
Checking the indoor unit addresses
Use the remote controller to check the indoor unit address.
<If 1 indoor unit is connected to 1 remote controller>
1.
Press and hold the
button and
button for 4 seconds or longer (simple settings mode).
2.
The address is displayed for the indoor unit that is connected to the remote controller.
(Only the address of the indoor unit that is connected to the remote controller can be checked.)
3.
Press the
button again to return to normal remote controller mode.
<If multiple indoor units are connected to 1 remote controller (group control)>
1.
Press and hold the
button and
button for 4 seconds or longer (simple settings mode).
2.
"ALL" is displayed on the remote controller.
3.
Next, press the
button.
4.
The address is displayed for 1 of the indoor units which is connected to the remote controller. Check that the fan of that indoor unit
starts and that air is discharged.
5.
Press the
button again and check the address of each indoor unit in sequence.
6.
Press the
again to return to normal remote controller mode.
Indoor unit address
Number changes to indicate which indoor unit is currently selected.
7-5. Remote Controller Test Run Settings
1.
Press the remote controller
button for 4 seconds or longer. Then press the
●
" TEST " appears on the LCD display while the test run is in progress.
●
The temperature cannot be adjusted when in Test Run mode.
(This mode places a heavy load on the machines. Therefore use it only when performing the test run.)
2.
The test run can be performed using the HEAT, COOL, or FAN operation modes.
Note: The outdoor units will not operate for approximately 3 minutes after the power is turned ON and after operation is stopped.
3.
If correct operation is not possible, a code is displayed on the remote controller LCD display.
(Refer to "Table of Self-Diagnostic Functions" and correct the problem.)
4.
After the test run is completed, press the
button again. Check that " TEST " disappears from the LCD display.
(To prevent continuous test runs, this remote controller includes a timer function that cancels the test run after 60 minutes.)
* If the test run is performed using the wired remote controller, operation is possible even if the cassette-type ceiling panel has
not been installed. ("P09" display does not occur.)
button.
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