– 21 –
41-EN 42-EN
9 Close the connectors between the [U1, U2] and [U3, U4] terminals on all the header outdoor
units (As shown).
U1
U3
U4
U2
U5
U6
S
S
9
TO
INDOOR
UNIT
TO
CENTRAL
CONTROLLER
TO
OUTDOOR
UNIT
SHIELDSHIELD
10 Set the central control address.
(For setting the central control address, refer to the installation manuals for the central control devices.)
SW15
SW04
12
SW13 SW14
SW01 SW02
SW03
D600 D601 D602 D603 D604
SW05
SW30
7-segment
display
Header unit interface P.C. board
2 The connectors between the [U1U2] and [U3U4] terminals on all the header outdoor units (that
will be connected to the central control) should be open as shown.
U1
U3
U4
U2
U5
U6
S
S
2
TO
INDOOR
UNIT
TO
CENTRAL
CONTROLLER
TO
OUTDOOR
UNIT
SHIELDSHIELD
3 Energize indoor units fi rst, and then energize outdoor units.
4 About 1 minute after turning energizing the outdoor units, confi rm that the 7-segment display
on the interface P.C. board of the header outdoor unit indicates
U. 1. L08
. The U.1. will be
fl ashing.
5 Press SW15 to start the automatic address setting.
It normally takes 5 minutes, but may take as long as 10 minutes to complete the auto address setting for 1
refrigerant line.
6 The 7 segment display will indicate
Auto 1 → Auto 2 → Auto 3
.
When the address sequence has covered all the fan coils for a refrigerant line auto - the 7
segment display will indicate
U. 1.
fl ashing.
When the fl ashing stops and the display indicates
U. 1.
without fl ashing, the address setting
is complete.
7 Repeat steps 4 to 6 for every refrigerant line in the system.
8 After completing address setting of all systems, turn off DIP switch 2 of SW30 on the interface
P.C. boards of all the header outdoor units connected to the same central control, except the
unit that has the lowest address.
1122001001-2_EN-FR.indb 211122001001-2_EN-FR.indb 21 2/18/17 11:44 AM2/18/17 11:44 AM
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