Toshiba MCY-MHP0305HT-C Service Manual page 51

Switch setting (setting example when controlling 2 or more refrigerant lines centrally)
Outdoor units (setting manually)
Outdoor unit's
Outdoor unit
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 setting
Relay connector
Outdoor unit
[U1, U2] and
[U3, U4] connected
U3 U4
CN10
CN02
U1 U2
U 1 U 2 U 1 U 2
A B A B
Remote Remote
controller controller
Individual
Indoor units
(automatic setting)
Line (system) address
n I d o r o u n t i a d d e r s s
G o r u p a d d e r s s
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.
Outdoor unit
1 2
Set to OFF after
ON
setting addresses.
Connect after setting
addresses. addresses.
Outdoor unit
[U1, U2] and
[U3, U4] connected
U3 U4
CN10
CN02
U1 U2
U 1 U 2 U 1
A B
Remote
controller
Group
1 1
1 2
0 0
50
73
*The items in bold font must be set manually.
Outdoor unit
3
Set to OFF
after setting
addresses.
Connect after setting
addresses.
Outdoor unit
[U1, U2] and
[U3, U4] connected
CN10
CN02
U1 U2
U 2 U 1 U 2
A B A B
Remote
controller
2 2 3
1 2 1
1 2 0
Factory default
1
ON
Open
Central
controller
U3 U4