1
1-10-1-2-3
NOTE
CAUTION
(1) When linking the outdoor units in a network, it is necessary to install the terminating resistance.
(1) See the section “ Recommended Wire Length and Wire
The installation method of the terminating resistance is different according to the connecting procedure of the
inter-unit control wiring in the link.
(2) The basic connection diagram of the indoor unit shows the
Diameter for Power Supply System” on page 1-10-1-2-1 for the
explanation of “C”, “D”, “E” and “F” under the section
“Wiring System Diagrams” on page 1-10-1-2-2.
terminal boards, so the terminal boards in your equipment may
differ from the diagram.
(3)
(4)
3P terminal board
Inter-unit
4P terminal board
control
Remote
wiring
control
wiring
Connection cable
between outdoor
and indoor unit
Refrigerant Circuit address should be set before turning the power on.
Regarding Refrigerant Circuit address setting, refer to the installation
instructions supplied with the remote controller (Optional).
Auto address setting can be executed by remote controller automatically.
U1 U2 R1 R2
L/1 N/2
3
After all of the wires are connected, close the lid of
the electrical component box.
Make the distance between two cables ( 1 and 2 )
as shown in the figure to the right.
Connection cable between
outdoor and indoor unit
1
Power supply cable /
Integrated control wiring
2
Remote control wiring /
Indoor unit control PCB
In case that the inter-unit control wiring in the link are all 3-line connection:
Set the terminating resistance on the indoor unit control PCB.
The setting of the terminating resistance at shipment is OPEN side (inoperative).
If the shorting socket is replaced as shown below, the terminating resistance is SHORT side (operative).
Change the setting of the terminating resistance at the nearest indoor unit and farthest indoor unit from the
integrated control system to SHORT side (operative).
The setting of 3 or more terminating resistances to SHORT side (operative) is prohibited.
In case that the inter-unit control wiring in the link are mixed with 3-line and 2-line connections:
Set the terminating resistance with the TERMINAL pin (CN-TERMINAL) on the *outdoor unit control PCB.
The setting of the terminating resistance at shipment is SHORT side (operative).
Leave one unit in short circuit condition among outdoor units in the link. Change to OPEN for other units.
For a system without link (no wiring connection between outdoor units), do not remove the short plug.
* Outdoor unit is connected by 2-line connection.
SM830283-00_欧州向け R32シングル36-71形TD&SM.indb 3 20/01/30 10:24:58
To Next Page
Loading...
