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.
• A transmission wiring example is shown below.
•
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
208/230V
L2
INDOOR
UNIT
A
INDOOR
UNIT
B
INDOOR
UNIT
C
INDOOR
UNIT
D
OUTDOOR
UNIT
BS
UNIT
Branch Selector unit
Outdoor unit
Branch Selector unit
Cooling-only 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 of joining branch
ports (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-only unit to “BS UNIT (F1, F2)” terminals of the final Branch Selector unit.
2.
This wiring example applies when joining the C and D branch ports and connecting them to indoor
unit.
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 number of indoor units connected to one branch port is 5.
19
English
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7/29/2020 1:03:40 PM