Toshiba MMY-MAP0804HT8-E Installation Manual page 25

SMMS-i
SW13
Line (system) address
1 2
26 – –
27 – –
28 – –
"–": not used for system address setting (Do not change their positions.)
2
Be sure to disconnect the relay connectors between the [U1U2] and [U3U4] terminals on all the
header outdoor units that will be connected to the central control. (Factory default: disconnected)
2
3
Turn on indoor units first, and then turn on outdoor units.
4
About 1 minute after turning the power on, confirm that the 7-segment display on the interface
P.C. board of the header outdoor unit indicates
5
Press SW 15 to start the automatic address setting.
(It may take up to 10 minutes (normally about 5 minutes) to complete one line's setting.)
6
The 7-segment display indicates
U. 1. - - - (U. 1. flash)
After the indication,
U. 1. - - - (U. 1. light)
When the flashing stops and
complete.
7
4 6
Repeat steps to for other refrigerant lines.
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.
(For unifying the termination of the wiring for the central control of indoor and outdoor units)
47-EN
Installation Manual
SW14
3 4 1 2
– ✕ ✕
✕ ✕
–
✕
–
U1 U2 U3 U4 U5 U6
TO
TO
TO
CENTRAL
INDOOR
OUTDOOR
CONTROL
UNIT
UNIT
LER
U. 1. L08 (U. 1. flash)
.
Auto 1 → Auto 2 → Auto 3
.
starts flashing on the display.
, remains lit on the display, the setting is
SMMS-i
9
Connect the relay connectors between the [U1, U2] and [U3, U4] terminals of the header outdoor
unit of each refrigerant line.
3 4
10
Set the central control address.
(For the setting of the central control address, refer to the installation manuals of the central control devices.)
– 24 –
9
U1 U2 U3 U4
TO
TO
CENTRAL
INDOOR
OUTDOOR
CONTROL
UNIT
LER
Header unit interface P.C. board
SW04 SW05
7-segment D600 D601 D602 D603 D604
display
SW13 SW14
SW01 SW02 SW03
SW30
1 2
Installation Manual
U5 U6
TO
UNIT
SW15
EN
48-EN