Daikin REYQ168 Installation Manual Page 208

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Electric Wiring Work SiUS39-506
202 Installation Manual BS Unit
EXAMPLE OF TRANSMISSION LINE CONNECTION
Example of connecting transmission wiring.
Connect the transmission wirings as shown in the Fig. 1.
F2
B
C
A
F2
F1
F1
F2
F1
Outdoor unit
TO IN/D UNIT
TO OUT/D UNIT
F1 F2
F1 F2 F1 F2
F1 F2
IN/D
OUT/D.BS
REMOTE
CONTROLLER
BS unit A
F1 F2 F1 F2
IN/D
OUT/D.BS
BS unit B
COOL/HEAT
selector
Branch wiring
Use 2-core wires.
(There is no polarity.)
B
C
A
REMOTE
CONTROLLER
COOL/HEAT
selector
Cool/heat selector remote
control wiring
Use 3-core wires.
(Keep in mind the polarity.)
F1 F2 F1 F2
IN/D
OUT/D.BS
B
C
A
REMOTE
CONTROLLER
Final BS unit
Indoor unit for cooling
F2
F1
COOL/HEAT
selector
Fig. 1
F2
F1
F2
F1
F1 F2
F1 F2 F1 F2
IN/D
OUT/D.BS
F1 F2
F1 F2
OUT/D.BS
To the indoor unit where
the selection of heating
and cooling is available.
Final BS unit
In case of the indoor unit connect as the cool-only unit, it wires
the terminal of the last BS unit.
Cooling only
1st unit
Final unit
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