Toshiba MMY-MUP0721FT6P-UL Service Manual page 131

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
U1 U2 U5 U6 U1 U2
U1 U2 U1 U2
Uv Uv
A B
Flow Flow
Selector Selector
unit unit
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
Uv Uc Uv
U5 U6 U1 U2
U1 U2
Uv
A B
Flow
Selector
unit
Remote
controller
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 Uh
Uc Uv Uc
U5 U6 U1 U2 U5 U6
U1 U2
Uv
A B A B
Group
2 2
1 2
1 2
- 131 -
(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
Flow
Selector
unit
Remote
controller
Factory
default
3 Un
1 Un
0 Un
Factory
default
OFF
(ALL OFF)
OFF
OFF
Central
control
device