Toshiba MCY-MHP0806HS8-E Installation Manual page 31

2FAN_IM_DB04307201-04_EN.book Page 30 Tuesday, December 17, 2019 6:34 PM
Switch settings for a line (system) address on the interface P.C. board on the outdoor unit
( : switch ON, : switch OFF)
SW13
Line (system) address
1 2
1 – –
2 – –
3 – –
4 – –
5 – –
6 – –
7 – –
8 – –
9 – –
10 – –
11 – –
12 – –
13 – –
14 – –
15 – –
16 – –
17 – –
18 – –
19 – –
20 – –
21 – –
22 – –
23 – –
24 – –
25 – –
26 – –
27 – –
28 – –
"–": not used for system address setting (Do not change their positions.)
EN-59
SW14
3 4 1 2 3
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2
In all the outdoor units connected to the central control, please make sure that the relay connector of the
interface P.C. board "CN10" has not been connected to the "CN02".
NOTE
4
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.
)
CN02
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 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
After the indication, U. 1. - - - (U. 1. flash)
When the flashing stops and
complete.
7
Repeat steps 4 to 6 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 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)
– 30 –
[U1, U2] and [U3, U4] not connected
U1 U2 U3 U4
CN10
Communication
terminal board
U1 U2 U3 U4
TO INDOOR TO CENTRAL
UNIT CONTROLLER
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
U. 1. - - - (U. 1. light)
Installation Manual
EN-60