Toshiba RAV-GM901KRTP Series Service Manual page 76

10-9-4. Setting Onboard Switches
Setting of terminating resistors is necessary for central control of custom indoor units only.
• Use SW01 to set terminating resistors.
• Set terminating resistors for the indoor unit only with the smallest refrigerant line address.
Central control device Central control device
U1 U2 U1
U3 U4 U3
Refrigerant line 1
Outdoor unit
1 2 3
Indoor unit U3 U4 1 2 3
A B
Remote controller
Line address 1
SW01 Bit 1 ON
Remarks Bit 1 to ON.
Central control devices: Max. 10 units
U2
U4
Refrigerant line 2 Refrigerant line 3
1 2 3
Header
Followerunit
unit
U3 U4 1 2 3
A B
TCC-LINK adapte
Remote controller wiring
(option)
Required for DI-SDI
indoor units other
than WallTyoe
Remote controller Remote controller
Group operation
(Max. 8 units)
2
OFF
Factory setting
Refrigerant line 4
1 2 3 1 2 3
Indoor/outdoor inter-unit wire (AC230V serial)
Follower unit
1 2 3 1 2 3
A B A B
Remote controller
3
OFF
Factory setting As status shipped from factory
- 76 -
Central control system wiring
* Wiring for No.1 and 2 only
Header unit
U3 U4 1 2 3 1 2 3
A B
Twin/Triple operation
(Example of triple)
4
OFF (OFF at shipment from factory)
Follower
unit
A B