Toshiba MMY-MAP0804HT8JP Service Manual page 128

Switch setting (setting example when controlling 2 or more refrigerant lines centrally)
Outdoor units (setting manually)
Outdoor unit's interface
P.C. board
SW13, 14
(Line (system) address)
Dip switch 2 of SW30
(Terminator of indoor/
outdoor communication
line and central control
line)
Connect after
Relay connector
Header unit
U3 U4
U1 U2 U5 U6
Relay
connector
U 1 U 2
A B
Remote
controller
Individual
Indoor units
(automatic setting)
Line (system) address
Indoor unit address
Group address
CAUTION
Relay connector connection
Never connect relay connectors between the [U1, U2] and [U3, U4] terminals before completing address setting of all
the refrigerant lines. Otherwise, the addresses cannot be set correctly.
Header unit Follower unit
(No setting
1
required)
(No setting
ON
required)
setting Open
addresses.
Follower unit Header unit
U3 U4
U1 U2 U5 U6
Relay
connector
U 1 U 2
A B
Remote
controller
1 1
1 2
0 0
*The items in bold font must be set manually.
Header unit Follower unit
(No setting
2
required)
Set to OFF
(No setting
after setting
required)
addresses.
Connect after
setting Open
addresses.
Follower unit
U3 U4 U3 U4
U1 U2 U5 U6 U1 U2 U5 U6
U 1 U 2 U 1 U 2
A B A B
Remote
controller
Group
2 2
1 2
1 2
– 127 –
Header unit Factory default
3 1
Set to OFF
after setting ON
addresses.
Connect after
setting Open
addresses.
Header unit
U3 U4
U1 U2 U5 U6
Relay
connector
U 1 U 2
A B
Remote
controller
3
1
0
Central
remote
controller