Toshiba MMY-MAP0726FT2P-UL Installation Manual page 22

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.
2
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
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
When the address sequence has covered all the fan coils for a refrigerant line auto - the 7
segment display will indicate U. 1.
When the fl ashing stops and the display indicates
is complete.
7
4 6
Repeat steps to 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.
41-EN
1122001201_EN FR.indd 21 1122001201_EN FR.indd 21
U1 U2 S U3 U4 U5 U6 S
TO TO TO
INDOOR SHIELD CENTRAL OUTDOOR SHIELD
UNIT CONTROLLER
UNIT
U. 1. L08 . The U.1. will be
Auto 1 → Auto 2 → Auto 3 .
fl ashing.
U. 1. without fl ashing, the address setting
– 21 –
9
Close the connectors between the [U1, U2] and [U3, U4] terminals on all the header outdoor
units (As shown).
9
10
Set the central control address.
(For setting the central control address, refer to the installation manuals for the central control devices.)
Header unit interface P.C. board
SW13
1 2
U1 U2 S U3 U4 U5 U6 S
TO TO TO
INDOOR SHIELD CENTRAL OUTDOOR SHIELD
UNIT
UNIT CONTROLLER
SW15
SW04 SW05
D600 D601 D602 D603 D604
7-segment
display
SW14
SW01 SW02 SW03
SW30
42-EN
9/2/16 1:30 PM 9/2/16 1:30 PM