Panasonic U-4LE1E5 Installation Instructions Manual page 29

Basic wiring diagram: Example (2)
• If link wiring is used
* When multiple outdoor units exist, remove the socket that is
used to short-circuit the terminal plug (CN-TERMINAL) from
all outdoor unit PCBs except for 1. Alternatively, move the
sockets to the "OPEN" side.
No. 1 unit settings
System address
(system 1 setting)
(S003)
(S002)
ON
ON
1 2
OFF
Unit
Outdoor unit
No. 1
system 1
Inter-unit control wiring
Indoor unit
1-1
Remote
controller
No. 2 unit settings
System address
(system 2 setting)
(S002) (S003)
ON
ON
1 2
OFF
Outdoor unit
system 2
Indoor unit
To other system
link wiring
Remote
controller
Make settings as appropriate for the cases listed below.
Indoor and outdoor unit power can be
turned ON for each system separately.
Indoor and outdoor unit power cannot
be turned ON for each system separately.
Automatic address setting in Heating mode
Automatic address setting in Cooling mode
AMP Air Conditioning
No. of indoor units
(6 units setting)
(S004)
Leave the socket
that is used to
short-circuit the
terminal plug.
(CN-TERMINAL)
1-2 1-3
Remote controller
communication wiring
No. of indoor units
(7 units setting)
(S004)
Leave the socket
that is used to
Unit
No. 1 open circuit the
terminal plug
(CN-TERMINAL).
Inter-unit control wiring
2-1 2-2
Remote controller
communication wiring
<Case 2>
<Case 3A>
<Case 3B>
<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 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 6 on the outdoor unit control PCB, set the
No. of indoor units rotary switch (S004) to "6".
3 At the outdoor unit where all indoor and outdoor unit power
has been turned ON, short-circuit the automatic address
pin (CN-A.ADD) for 1 second or longer, then pull it out.
↓
(Communication for automatic address setting begins.)
↓
1-6
(Automatic address setting is completed when LEDs 1 and
2 on the outdoor unit control PCB turn OFF.)
↓
4 Next turn the power ON only for the indoor and outdoor
units of the next (different) system. Repeat steps 1 – 3 in
the same way to complete automatic address settings for
all systems.
↓
5 Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote
controller, perform steps 1 and 2, then use the remote
controller complete automatic address setting.
Refer to "Automatic Address Setting from the Remote
Controller."
2-7
Fig. 7-7
28
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ON
ON
1 2 OFF
* 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 automatic address
setting is in progress turns OFF and the
process is stopped.