Panasonic U-72MF1U9 Service Manual page 12

3. Auto Address Setting
Case 2 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 No. 1 (main) unit control PCB, set the unit No. switch (S007) to
On the No. 2 (sub) unit control PCB, set the unit No. switch (S007) to
On the No. 3 (sub) unit control PCB, set the unit No. switch (S007) to
2. To set the number of outdoor units on the outdoor main unit control PCB, set the No. of outdoor units DIP switch (S006) to
ON
ON
1 2 3
OFF
3. On the outdoor main unit control PCB, check that the system address rotary switch (S002) is set to "1" and that the DIP
1
switch (S003) is set to "0"
4. To set the number of indoor units that are connected to the outdoor unit to 13, on the outdoor main unit control PCB set the
2 No. of indoor units DIP switch (S005) to "1"
5. Turn on power to all indoor and outdoor units in the system.
6. Short-circuit the automatic address pin at the outdoor main unit (CN100) for 1 second or longer, then release it.
3
(Communication for automatic address setting begins.)
* To cancel, again short-circuit the automatic address pin (CN100) for 1 second or longer, then release it.
4
(Automatic address setting is completed when LEDs 1 and 2 on the outdoor main unit control PCB turn OFF.)
7. Next turn the power ON only for the indoor and outdoor units of the next (different) system. Repeat steps 1 - 5 in the same
way to complete automatic address settings for all systems.
5
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
complete automatic address setting.
Refer to "Automatic Address Setting from Remote Controller."
6
7
(3 units).
ON
ON
. (These are the settings at the time of factory shipment.)
1 2
OFF
ON
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.
ON
1
ON
1 2
ON
1 2
ON
, and set the rotary switch (S004) to "3."
1 2 3
OFF
1 - 8
(unit No. 1).
2 3
(unit No. 2).
3
(unit No. 3).
3
Test Run