Sanyo MINI ECO-i XHX1252 Service Manual & Test Run Service Manual page 12

3. Auto Address Setting
Case 1 Automatic Address Setting (no compressor operation)
Indoor and outdoor unit power can be turned ON for each system separately.

Indoor unit addresses can be set without operating the compressors.
Automatic Address Setting from Outdoor Unit
1. On the outdoor unit control PCB, check that the system address rotary switch (S002) is set to "1" and that the
DIP switch (S003) is set to "0".
2. To set the number of indoor units that are connected to the outdoor unit to 6, on the outdoor unit control PCB set
the No. of indoor units rotary switch (S004) to "6".
3. At the outdoor unit where all indoor and outdoor unit power has been turned ON, short-circuit the automatic
address pin (CN51) for 1 second or longer, then pull it out.
↓
(Communication for automatic address setting begins.)
↓
* To cancel, again short-circuit the automatic address pin (CN51) for 1 second or longer, then pull it out.
The LED that indicates automatic address setting is in progress turns OFF and the process is stopped.
(Automatic address setting is completed when LED 1 and 2 on the outdoor unit control PCB turn OFF.)
↓
4. Next turn the power ON only for the indoor and outdoor units of the next (different) system. Repeat steps 1 – 3
in the same way to complete automatic address settings for all systems.
↓
5. Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote controller, perform steps 1 and 2, then use the remote controller
complete automatic address setting.
Refer to "Automatic Address Setting from the Remote Controller".
(These are the settings at the time of factory shipment.)
ON
ON
1 2
OFF
ON
ON
1 2 3
OFF
ON
ON
1 2 3
OFF
ON
1 2 3
ON
1 2 3
ON
1 2 3
1-8
Test Run