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6-4 Wiring example
WARNING
Install circuit protection safety devices in accordance with local and national codes.
Failure to install circuit protection safety devices in accordance with local and national codes may result
in electric shock or fire.
• Here is shown a wiring example for transmission wiring.
•
Connect “TO IN/D UNIT (F1, F2)” terminals on the printed circuit board of the outdoor unit to “OUT-
DOOR UNIT (F1, F2)” terminals of the first Branch Selector unit.
F1 F2 F1 F2 F1 F2 F1 F2
F1 F2 F1 F2
F1 F2
F1 F2
F1 F2
F1 F2
F1 F2
F1 F2
F1 F2
F1 F2
F1 F2 F1 F2
L1
B
E
D
208/230V
L2
INDOOR
UNIT
A
INDOOR
UNIT
B
INDOOR
UNIT
C
INDOOR
UNIT
D
OUTDOOR
UNIT
BS
UNIT
Branch Selector unit
Outdoor unit
To Branch Selector unit
Cooling-dedicated
unit (Note 1)
Indoor unit
A
Indoor unit
B-1
Indoor unit
B-2 (Note 3)
Indoor unit
C (Note 2)
Indoor unit
Indoor unit
TO IN/D
UNIT
Never connect to power supply wiring.
In case joining branch
pipes (Note 2)
INDOOR
UNIT
OUTDOOR
UNIT
BS
UNIT
B : Circuit protection safety devices in accordance with
local and national codes
Power supply
NOTES
1.
Connect the cooling-dedicated unit to “OUTDOOR UNIT (F1, F2)” terminals of the final Branch Selec
-
tor unit.
2.
This wiring example applies when joining the C and D branches and connecting them to indoor units.
The terminal block to which the transmission wiring is connected can be connected to either indoor
unit C or indoor unit D.
However, the DIP switches must be set appropriately.
For more information about how to set DIP switches, refer to “
7. INITIAL SETTING”.
3.
The maximum connection number of indoor units per branch is 5 sets.
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3P405106-9 English
01_EN_3P405106-9.indb 13
3/27/2015 1:53:11 PM