Daikin FXDQ07MVJU Installation Manual page 12

[ WIRING EXAMPLE ]
No. 1 system When using 1 remote controller for
1 indoor unit
Power supply Power supply
single phase single phase
Outdoor unit
60Hz 208-230V 60Hz 208-230V
L1 L2
IN/D OUT/D
F F F F
1 2 1
2
L1 L2 P P F F T T
1 2 1 2 1 2
Indoor unit A Indoor unit B
P P
1 2
Remote controller
(option)
No. 2 system For group control or use with 2 remote
controllers
Power supply
single phase
Outdoor unit Note) There is not need to set the indoor unit
60Hz 208-230V
L1 L2
IN/D OUT/D
F F F F
1 2 1 2
L1 L2 P P F F T T L1 L2
1 2 1 2 1 2
Indoor
unit A
P P
1 2
Remote controller
(option)
No. 3 system When including BS unit
Power supply
single phase Outdoor unit
60Hz 208-230V
L1 L2
IN/D
F
1
P
L1 L2
1
Indoor unit A
Remote controller
11
Power supply
single phase
60Hz 208-230V
L1 L2 L1 L2
L1 L2 P P F F T T L1 L2 P P F
1 2 1 2 1 2 1 2
Most
downstream
Indoor unit
P P
1 2
Remote controller Remote controller
(option) (option)
Fig. 16
address when using group control.
(It is automatically set when the power
is turned on.)
Most down-
P P F F T T L1 L2 P P F F T T stream
1 2 1 2 1 2 1 2 1 2 1 2
indoor unit
Indoor unit B
P P
1 2
Case of group control
Remote control l e r
(option)
For use with 2
remote controllers
Fig. 17
BS unit
OUT/D OUT/D IN/D
F F F F F
F F
2 1 2 1 2 1 2
P F F T T
2 1 2 1 2
P P
1 2
(option)
Fig. 18
〈 Precautions when laying power supply wiring 〉
• Wiring of different thicknesses cannot be connected to the
power supply wiring terminal block. (Slack in the power sup-
ply wiring may cause abnormal heat.)
• Use sleeve-insulated round crimp-style terminals for connec-
tions to the power supply wiring terminal block. When none
are available, connect wires of the same diameter to both
sides, as shown in the figure.
Round crimp-style terminal
F T T
1 2 1 2
Connect wires of
the same gauge to
both sides.
P P
1 2
Follow the instructions are below if the wiring may get very
hot due to slack in the power supply wiring.
• For wiring, use the designated power supply wiring and con-
nect firmly, then secure to prevent outside pressure being
exerted on the terminal board.
• Use the correct screwdriver for tightening the terminal screws. If
the blade of screwdriver is too small, the head of the screw
might be damaged, and the screw will not be properly tightened.
• If the terminal screws are tightened too hard, screws might
be damaged.
• Refer to the table below for the tightening torque of the termi-
nal screws.
Terminal block
Remote controller / transmission wiring
P P
1 2
terminal block (6P)
Remote control l e r
Power supply wiring terminal block (3P)
10-2 CONTROL BY 2 REMOTE CONTROLLERS (Con-
trolling 1 indoor unit by 2 remote controllers)
• When using 2 remote controllers, one must be set to "MAIN"
and the other to "SUB".
MAIN/SUB CHANGEOVER
(1) Insert a
upper and lower part of remote controller and, working
from the 2 positions, pry off the upper part.
The remote controller PC board is attached to the upper
part of remote controller.
Insert the screwdriver here and gently work
off the upper part of remote controller.
Insulation sleeve
Do not connect
wires of the same
gauge to one side.
Tightening torque (ft · lbf)
screwdriver into the recess between the
Upper part of
remote controller
Lower part of
remote controller
Electric wire
Do not connect
wires of different
gauges.
0.58 – 0.72
0.87 – 1.06