user manual

10.8
.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
U1
U3
U2
U4
Central control device
U1
U3
123
U2
U4
Central control devices: Max. 10 units
Refrigerant line 1
Outdoor unit
Indoor unit
12
3
Refrigerant line 2
12
3
Refrigerant line 3
12
3
Refrigerant line 4
123
A
B
U3
U4
123
A
B
U3
U4
123
A
B
123
A
B
123
A
B
123
A
B
U3 U4
TCC-LINK adapte
(option)
Required for
DI-SDI
indoor units other
than WallTyoe
Remote controller
Indoor/outdoor inter-unit wire (AC230V serial)
Central control system wiring
Header
unit
Header unit
Followerunit
Follower unit
Follower
unit
* Wiring for No.1 and 2 only
Remote controller
Remote controller
Remote controller
Remote controller wiring
Group operation
(Max. 8 units)
Twin/Triple operation
(Example of triple)
(OFF at shipment from factory)
Line address
SW01 Bit 1
Remarks
1
ON
Bit 1 to ON.
2
OFF
Factory setting
3
OFF
Factory setting
4
OFF
As status shipped from factory
FILE NO. SVM-12004
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