Panasonic CS-A24BB4P Service Manual page 131

1. Automatic address setting (don't need to set dip-switch) / If the
wiring is connected properly as above example, the AC numbers
are set automatically by the main power supply. An indoor unit
with remote control will be set as the master. / If the power source
is installed to indoor units and outdoor units separately, turn on
the switch by following the procedure: outdoor unit, then indoor
unit with control, and finally other indoor units. The AC number
will be set at random.
When the slave units do not operate (when address cannot be set)
Reset the address by following the procedure:
A. Make sure that dip-switches No. 1 to 4 and No. 8 are OFF, stop
the operation.
B. Simultaneously, push buttons "AIR SWING AUTO",
"OPERATION" and "A/C No.". The address will be reset and
new address will be set.
131