7-4. Auto Address Setting - Panasonic U-4LE1E5 Installation Instructions Manual

● Examples of the No. of indoor units settings
No. of indoor units
1 unit (factory setting)
2 units
9 units
● Examples of refrigerant circuit (R.C.) address settings
(required when link wiring is used)
System address
System address
No.
(2P DIP switch, black)
System 1 (factory setting)
System 11
System 21
System 30
AMP Air Conditioning
Indoor unit setting (S004)
(Rotary switch, gray)
set to 1
set to 2
set to 9
System address
(S003) (S002)
(Rotary switch, yellow)
Both OFF
ON
ON
set to 1
1 2
OFF
1 ON
ON
ON
set to 1
1 2
OFF
2 ON
ON
ON
set to 1
1 2
OFF
1&2 ON
ON
ON
set to 0
1 2
OFF

7-4. Auto Address Setting

Basic wiring diagram: Example (1)
• If link wiring is not used
(The inter-unit control wires are not connected to multiple
refrigerant systems.)
Indoor unit addresses can be set without operating the
compressors.
No. 1 unit settings
System address No. of indoor units
(system 1 setting) (8 units setting)
(S003) (S002)
ON
ON
1 2
OFF
Outdoor Unit
Unit No. 1
Inter-unit control wiring
Indoor Unit
1-1
Remote
controller
(1) Automatic Address Setting from the Outdoor Unit
1 On the outdoor unit control PCB, check that the system
address rotary switch (S002) is set to "1" and that the DIP
switch (S003) is set to "0".
(These are the settings at the time of factory shipment.)
2 To set the number of indoor units that are connected to the
outdoor unit to 8 on the outdoor unit control PCB, set the
No. of indoor units rotary switch (S004) to "8".
3 Turn ON the power to the indoor and outdoor units.
4 On the outdoor unit control PCB, short-circuit the automatic
address pin (CN-A.ADD) for 1 second or longer, then
release it.
↓
(Communication for automatic address setting begins.)
↓
* To cancel, again short-circuit the automatic
address pin (CN-A.ADD) for 1 second or
longer, then pull it out.
The LED that indicates that automatic address
setting is in progress turns OFF and the
process is stopped.
(Automatic address setting is completed when LEDs 1 and
2 on the outdoor unit control PCB turn OFF.)
↓
5 Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote
controller, perform steps 1 to 3, then use the remote
controller and complete automatic address setting.
Refer to "Automatic Address Setting from the Remote
Controller."
27
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(S004)
1-2 1-3
Remote controller
communication wiring
ON
ON
OFF
1 2
1-8
Fig. 7-6