Sanyo AHX0752 - Manual (Page 13)

1-9
Test Run
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3. Auto Address Setting
Case 3A Automatic Address Setting in Heating Mode
Indoor and outdoor unit power cannot be turned ON for each system separately.
In the following, automatic setting of indoor unit addresses is not possible if the compressors are not operating.
Therefore perform this process only after completing all refrigerant tubing work.
Automatic Address Setting from Outdoor Unit
1. Perform steps 1 - 4 in the same way as for Case 2 .
5. Turn the indoor and outdoor unit power ON at all systems.
6. To perform automatic address setting in Heating mode , on the outdoor main unit control PCB in the refrigerant system
where you wish to set the addresses, short-circuit the automatic address pin (CN100) for 1 second or longer, then release
it. (Be sure to perform this process for one system at a time. Automatic address settings cannot be performed for more than
one system at the same time.)
(Communication for automatic address setting begins, the compressors turn ON, and automatic address setting in Heating
mode begins.)
(All indoor units operate.)
* To cancel, again short-circuit the automatic address pin (CN100) for 1 second or longer, then release it. The
LED that indicates automatic address setting is in progress turns OFF and the process is stopped. Be sure to
perform automatic address setting again.
(Automatic address setting is completed when the compressors stop and LED 1 and 2 on the main unit control PCB turn
OFF.)
7. At the outdoor main unit in the next (different) system, short-circuit the automatic address pin (CN100) for 1 second or
longer, then release it.
(Repeat the same steps to complete automatic address setting for all units.)
8. Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote controller, perform steps 1 - 5, then use the remote controller and
to complete automatic address setting.
Refer to “Automatic Address Setting from Remote Controller.”
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