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Sanyo UHX1252 User Manual

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Test Run
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3. Auto Address Setting
Display during automatic address setting
On outdoor main unit PCB
LED
1
2
Blink alternately
* 
Do not short-circuit the automatic address setting pin (CN100) again while automatic address setting is in 
progress. Doing so will cancel the setting operation and will cause LED 1 and 2 to turn OFF.
* 
When automatic address setting has been successfully completed, both LED 1 and 2 turn OFF.
* 
LED 1 is D72. LED 2 is D75.
* 
If automatic address setting is not completed successfully, refer to the table below and correct the problem. Then perform 
automatic address setting again.
Display of LED 1 and 2 on the outdoor unit control PCB
(
: ON   
 : Blinking   
 :OFF)
LED1
LED2
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 
confi rmed 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. 
“
”(when indoor units are operating) indication appears on the display.
Simultaneous
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 com-
pressor is OFF).
Remote controller display
z
z
z
is blinking 
SM830157_W-2WAY_ECO-i.indb   11
SM830157_W-2WAY_ECO-i.indb   11
2007/06/08   14:23:17
2007/06/08   14:23:17