Toshiba Carrier MCY-MAP0367HS-UL Installation Manual page 21

2
In all the outdoor units connected to the central control, make sure the relay connector of the interface
P.C. board "CN10" has not been connected to the "CN02".
NOTE
If you connect a relay connector "CN10" to "CN02", the communication line [U1, U2] will be connected to [U3, U4].
If [U1, U2] is connected to the [U3, U4], refrigerant line address cannot be set correctly.
)
[U1, U2] and [U3, U4] not connected
CN02
3
Turn on the indoor units first, and then turn on the 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 outdoor unit indicates U. 1. L08 (U. 1. flash)
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
Auto 1  Auto 2  Auto 3
The 7-segment display indicates
After the indication, U. 1. - - - (U. 1. flash)
When the flashing stops and
U. 1. - - - (U. 1. light)
complete.
7
Repeat steps 4 to 6 for other refrigerant lines.
8
After completing the address setting of all systems, turn off dip switch 2 of SW30 on the interface P.C.
boards of all the 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)
EN-39
U1 U2 U3 U4
CN10
Communication
terminal board
U1 U2 U3 U4
TO INDOOR TO CENTRAL
UNIT CONTROLLER
.
.
starts flashing on the display.
remains lit on the display, the setting is
SW30
9
Connect the relay connectors "CN10" to "CN02", which are mounted on the interface P.C. boards of all
the outdoor units connected to the central control.
NOTE
Ensure that before you perform this task, address that the setting of the refrigerant line have all been completed.
[U1, U2] and [U3, U4] connected
CN02
CN10
10
Set the central control address.
(For the setting of the central control address, refer to the installation manuals of the central control devices.)
– 20 –
Installation Manual
Header unit interface P.C. board
SW04 SW05 SW15
D600 D601 D602 D603 D604
SW06 SW07 SW09 SW10
SW01 SW02 SW03
SW11 SW12 SW13 SW14
SW16 SW17
SW30
U1 U2 U3 U4
Communication
terminal board
U1 U2 U3 U4
TO INDOOR TO CENTRAL
UNIT CONTROLLER
EN-40