Toshiba MMY-MUP0721HT9P-UL Service Manual page 111

Switch setting (setting example when controlling 2 or more refrigerant lines centrally)
Outdoor units (setting manually)
Outdoor unit's interface
P.C. board
SW101 Bit1
(Header unit se�ng)
SW101 Bit2-4, SW102 Bit1-4
(Line (system) address)
SW100 Bit1
(Terminator of central control line (Uh))
SW100 Bit2
(Terminator of indoor and
outdoor communica�on line(Uv))
Header unit Follower unit
U3 U4
Uh
Uv Uc Uv
U1 U2 U5 U6 U1 U2
U1 U2 U1 U2
Uv Uv
A B A
Remote Remote
controller controller
Individual
Indoor units
(automatic/
manual setting)
Line (system) address
Indoor unit address
Group address
3. Attach the electrical control box cover.
Header unit Follower unit Header unit Follower unit Header unit
ON
(ALL OFF)
ON
ON
Header unit
U3 U4 U3 U4
Uh Uh
Uc Uv
U5 U6 U1 U2
U1 U2
Uv
B A
Remote
controller
Group
1 1
1 2
0 0
*The items in bold font must be set manually.
(No se�ng
ON
required)
(No se�ng
2
required)
(No se�ng (No se�ng
required) required)
(No se�ng
ON
required)
Follower unit
U3 U4
Uh
Uc Uv Uc
U5 U6 U1 U2 U5 U6
U1 U2
Uv
B A B
2 2
1 2
1 2
- 111 -
(No se�ng
ON
required)
(No se�ng
3
required)
(No se�ng (No se�ng
required) required)
(No se�ng
ON
required)
Header unit
U3 U4
Uh
Uv Uc
U1 U2 U5 U6
U1 U2
Uv
A B
Remote
controller
Factory
default
3 Un
1 Un
0 Un
Factory
default
OFF
(ALL OFF)
OFF
OFF
Central
remote
controller