Installation Instructions
28
Outdoor
IndoorIndoor
Remote
controller
Outdoor
Indoor Indoor
(Example)
Wire
systematic
diagram
Group control over
multiple refrigerant system
Address setup procedure 2
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.
SW11
1
ON
Interface P.C. board
2 3 4
SW12
1
ON
2 3 4
SW06
1
ON
2 3 4
SW07
1
ON ONON ON
2 3 4
SW09SW08
11 2 3 4
SW10
1 2 3 4
SW13
1
ON
2 3 4
SW14
1
ON
2 3 4
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.)
Check that the relay connectors between [U1U2] and [U3U4] terminals are come out in all outdoor units to which
the central control is connected. (At shipment from factory: No connection of connector)
Line
address
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SW13 SW14
12341234
×××××
×
¡
×××
××
¡
××
×
¡¡
××
×××
¡
×
×
¡
×
¡
×
××
¡¡
×
×
¡¡¡
×
××××
¡
×
¡
××
¡
××
¡
×
¡
×
¡¡
×
¡
×××
¡¡
×
¡
×
¡¡
Line
address
15
16
17
18
19
20
21
22
23
24
25
26
27
28
SW13 SW14
12341234
××
¡¡¡
×
¡¡¡¡
¡
××××
¡¡
×××
¡
×
¡
××
¡¡¡
××
¡
××
¡
×
¡¡
×
¡
×
¡
×
¡¡
×
¡¡¡¡
×
¡
×××
¡
¡¡
××
¡
¡
×
¡
×
¡
¡¡¡
×
¡
2
U2U1
For control
wiring between
indoor and
outdoor
U3 U4
For wiring of
central control
system
Relay connector
Turn on power of indoor/outdoor.
(In order of indoor
→→
→→
→ outdoor)
After approx. 1 minute, check that 7-segment display is
U.1.L08 (U.1. flash) on the interface P.C. board.
Push SW15 and start setup the automatic address.
(Max. 10 minutes for 1 line (Usually, approx. 5 minutes))
When the count Auto 1 → Auto 2 → Auto 3 is displayed in
7-segment display section, and it changes from
U. 1. - - - (U. 1. flash) to U. 1. - - - (U. 1. light) , the setup
finished.
Procedure
to
are repeated in other refrigerant systems.
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.