Sanyo KHS1232 Technical Data Manual page 19

Indoor Unit
2) Switch Positions for Up to 4 Units
Table 2 shows the positions you can use for up to 4
indoor units installed in the same room.
Table 2
Remote control unit
Unit No.
1
1 OFF
2 ON
3 ON
4 OFF
NOTE
An indoor unit cannot be remote controlled if its remote
control unit is too far away (more than 25 ft.). If the
remote control unit does not seem to work correctly,
bring it closer to the unit being operated and try again.
For this reason, if the remote control unit is to be used
from a fixed position, operation should be checked at
that position before mounting.
Indoor unit
2 1 2
OFF OFF OFF
OFF ON OFF
ON ON ON
ON OFF ON
16
PCB
Address switch
(for receiving)
Addresses 1 and 2 are
both in the OFF position
at time of shipment.
Fig. 8