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EN
REQUIREMENT
• When a group control is performed over multiple
refrigerant systems, be sure to turn on the power
supplies to all of the indoor units connected, so that
the address set-up can be completed correctly.
• If turning on the power for each refrigerant system to
set up the addresses, a header indoor unit must be set
for each system. Therefore, an alarm code “L03”
(Duplicated header indoor units) will be displayed
during in operation after the address setup has been
completed. In this case, change the group address
using the wired remote controller so that only one
header indoor unit is set-up.
◆
Address setup procedure 2
1
Using SW13 and 14 on the interface P.C.
board on the outdoor unit in each system,
set up the system address for each system.
(At shipment the address is set to 1 from the factory)
NOTE
Be careful not to duplicate with any other refrigerant systems
or other line (system) addresses.
Line (System) address switch on outdoor interface P.C. board
(
{
: Switch ON,
✕
: Switch OFF)
: Is not used for setup of line address. (Do not change setup.)
2
Check that the relay connectors between [U1U2] and [U3U4] terminals are come out in all outdoor
units to which the central control is connected. (Factory default : No connection of connector)
3
Turn on power of indoor / outdoor. (In order of indoor
→
outdoor)
4
After approx. 1 minute, check that 7-segment display is
on the interface P.C. board.
5
Push SW15 and start setup the automatic address.
(Max. 10 minutes for 1 line (Usually, approx. 5 minutes))
6
When the count
is displayed
in 7-segment display section, and it changes from
to
, the
setup finished.
7
Procedure
4
to
6
are repeated in other refrigerant systems.
(Example)
Group control over
multiple refrigerant system
Wire
systematic
diagram
Outdoor
Indoor
Remote
controller
Indoor
Indoor
Indoor
Outdoor
SW11
1
ON
2 3 4
SW12
1
ON
2 3 4
SW06
1
ON
2 3 4
SW07
1
ON
ON
ON
ON
2 3 4
SW09
SW08
1
1
2 3 4
SW10
1 2 3 4
SW13
1
ON
2 3 4
SW14
1
ON
2 3 4
Interface P.C. board
Line
address
SW13
SW14
1
2
3
4
1
2
3
4
1
✕
✕
✕
✕
✕
2
✕
{
✕
✕
✕
3
✕
✕
{
✕
✕
4
✕
{
{
✕
✕
5
✕
✕
✕
{
✕
6
✕
{
✕
{
✕
7
✕
✕
{
{
✕
8
✕
{
{
{
✕
9
✕
✕
✕
✕
{
10
✕
{
✕
✕
{
11
✕
✕
{
✕
{
12
✕
{
{
✕
{
13
✕
✕
✕
{
{
14
✕
{
✕
{
{
Line
address
SW13
SW14
1
2
3
4
1
2
3
4
15
✕
✕
{
{
{
16
✕
{
{
{
{
17
{
✕
✕
✕
✕
18
{
{
✕
✕
✕
19
{
✕
{
✕
✕
20
{
{
{
✕
✕
21
{
✕
✕
{
✕
22
{
{
✕
{
✕
23
{
✕
{
{
✕
24
{
{
{
{
✕
25
{
✕
✕
✕
{
26
{
{
✕
✕
{
27
{
✕
{
✕
{
28
{
{
{
✕
{
U2
U1
U3
U4
Relay connector
For control
wiring between
indoor and
outdoor
For wiring of
central control
system
2
U. 1. L08 (U. 1. flash)
Auto 1
→
Auto 2
→
Auto 3
U. 1. - - - (U. 1. flash)
U. 1. - - - (U. 1. light)
8
When address setup has finished in all the
systems, turn off SW30-2 on the interface P.C.
boards of the lines connected to the identical central
control except a line with least line address number.
(Terminator resistors of the wires in the central
control line of indoor / outdoor are unified.)
9
Connect the relay connector between [U1U2] and
[U3U4] terminals of the outdoor unit for each
refrigerant line.
10
Then set up the central control address.
(For the central control address setup, refer to the
Installation manual of the central control devices.)
Switch setup
(Example in case of central control over refrigerant system)
Outdoor side (Manual setup)
* Manual setup is necessary for column of which letter color is reversed.
CAUTION
For relay connector
Never connect a relay connector until address setup for all the refrigerant systems finishes;
otherwise address cannot be correctly set up.
Outdoor interface
P.C. board
Outdoor unit
Outdoor unit
Outdoor unit
Setup factory
default
SW13, 14
(Line address)
1
2
3
1
SW30-2
⎧
Terminator resistor of
⎫
⎪
indoor / outdoor communi-
⎪
⎪
cation line / central control
⎪
⎩
communication line
⎭
ON
OFF after
address setup
OFF after
address setup
ON
Relay connector
Short after
address setup
Short after
address setup
Short after
address setup
Open
Line address
1
1
2
2
3
Indoor unit address
1
2
1
2
1
Group address
0
0
1
2
0
SW11
1
ON
2 3 4
SW12
1
ON
2 3 4
SW06
1
ON
2 3 4
SW07
1
ON
ON
ON
ON
2 3 4
SW09
SW08
1
1
2 3 4
SW10
1 2 3 4
SW13
1
ON
2 3 4
SW14
1
ON
2 3 4
SW30
SW30
1
ON
2
SW04
SW01
1
SW05 SW15
D600 D601 D602 D603 D604
1
1
SW02 SW03
SW15
Interface P.C. board
7-segment
display
U3 U4
U1 U2
U1 U2
A B
U1 U2
A B
U1 U2
A B
U1 U2
A B
U1 U2
A B
U3 U4
U3 U4
U1 U2
U3 U4
U1 U2
Indoor units
(automatic setting)
Remote
controller
Relay
connector
Relay
connector
Relay
connector
Central
remote controller
Outdoor unit
Outdoor unit
Outdoor unit
Individual
Group
Remote
controller
Remote
controller
Remote
controller
35-EN
36-EN
