Panasonic U-4LE2E5 Service Manual & Test Run Service Manual page 51

12. Outdoor Unit Control PCB
Table 1-3
The number of indoor units settings (SW3, SW4)
Number of indoor units
1 - 9 unit
(factory setting : 1 unit)
10 - 12 unit
DO NOT exceed the maximum number of indoor units when making connections.
The indoor unit address setting should also be set less than "12".
In the event of setting more than "13", the communication cannot be made between the outdoor and indoor units.
Table 1-4
Examples of refrigerant circuit (R.C.) address settings (required when link wiring is used) (SW1, SW2)
System address No.
System 1 (factory setting)
System 11
System 21
System 30
Table 1-5
Setting the System Address
[SW2: Rotary switch (Yellow), SW1: 2P DIP (Black)]
Outdoor
SW2
system
setting
address
1
2
3
4
5
6
7
8
9
Link wiring 10
11
12
13
14
15
16
17
18
19
Indoor unit setting (SW3)
(1P DIP switch)
ON
OFF
OFF
ON
ON
OFF
System address (SW1)
(2P DIP switch)
ON
Both OFF
OFF
ON
1 ON
OFF
ON
2 ON
OFF
ON
Both ON
OFF
SW1 setting
1P 2P
(10s digit) (20s digit)
1 OFF OFF
2 OFF OFF
3 OFF OFF
4 OFF OFF
5 OFF OFF
6 OFF OFF
7 OFF OFF
8 OFF OFF
9 OFF OFF
0 ON OFF
1 ON OFF
2 ON OFF
3 ON OFF
4 ON OFF
5 ON OFF
6 ON OFF
7 ON OFF
8 ON OFF
9 ON OFF
Indoor unit setting (SW4)
(Rotary switch)
10
ON
1
ON
1
System address (SW2)
(Rotary switch)
10 20
ON
1 2
1 2
ON
1 2
1 2
1 2
1 2
1 2
ON
1 2
1 2
1 2
2
1
1 2
2
1
ON
2
1
1 2
2
1
Outdoor
system
address
20
21
22
23
24
Link wiring 25
26
27
28
29
30
1 - 41
Mini VRF SYSTEM
Control Functions - Outdoor unit
Set to 1 - 9
Set to 0 - 2
Set to 1
Set to 1
Set to 1
Set to 0
SW1 setting
SW2
1P
setting
(10s digit)
0 OFF
1 OFF
2 OFF
3 OFF
4 OFF
5 OFF
6 OFF
7 OFF
8 OFF
9 OFF
0 ON
1
2P
(20s digit)
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON