Panasonic S-36PU1E5A Technical Data & Service Manual page 303

Checking indoor unit addresses
Use the remote controller to check the addresses of the indoor units.
Press and hold the button and
(simple settings mode, "ALL" appears on the remote controller).
Then press the button and select the indoor address.
(For the system addresses of the No. 1 outdoor unit, each time the
button is pressed, the address changes as follows: 1-1, 1-2)
The indoor unit fan operates only at the selected indoor unit.
Confirm the indoor unit address. (For the system addresses of the
No. 2 outdoor unit, the displayed addresses are 2-1, 2-2)
Press the button again to return to the normal remote controller mode.
Indicating (marking) the indoor and outdoor unit combination number
Indicate (mark) the number after automatic address setting is completed.
(1) So that the combination of each indoor unit can be easily checked when multiple units are installed, ensure that
the indoor and outdoor unit numbers correspond to the system address number on the outdoor unit control PCB,
and use a magic marker or similar means which cannot be easily removed to indicate the numbers in an easily
visible location on the indoor units (near the indoor unit nameplates).
Example: (Outdoor) 1 – (Indoor) 1, 2
(Outdoor) 2 – (Indoor) 1, 2
(2) These numbers will be needed for maintenance.
Be sure to indicate them.
button for 4 seconds or longer
1-293
1