Daikin FXFQ-M, Engineering Data

Page: 33 / 38

Installation EDUS39-600-F1_a
32 FXFQ-M
2. Tightening torque for the terminal screws.
• 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
terminal screws.
3. Do not connect wires of different gauge to the same
grounding terminal. Looseness in the connection may
deteriorate protection.
4. Outside of the unit, keep transmission wiring at least
1 15/16” (46 mm) away from power supply wiring. The
equipment may malfunction if subjected to electrical
(external) noise.
5. For remote controller wiring, refer to the INSTALLATION
MANUAL OF REMOTE CONTROLLER attached to the
remote controller.
11-2 WIRING EXAMPLE
• Fit the power supply wiring of each unit with a switch and
fuse as shown in the drawing.
COMPLETE SYSTEM EXAMPLE
1. When using 1 remote controller for 1 indoor unit.
(Normal operation)
2. For group control or use with 2 remote controllers
NOTE
1. A single switch can be used to supply power to units on
the same system. However, branch switches and branch
circuit breakers must be selected carefully.
2. Do not ground the equipment on gas pipes, water pipes or
lightning rods, or crossground with telephones. Improper
grounding could result in electric shock.
11-3 CONTROLLING 1 INDOOR UNIT USING 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 screw driver into the recess between the 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.
(2) Turn the MAIN/SUB changeover switch on one of the two
remote controller PC boards to S .
Leave the switch of the other remote controller set to M . .
Terminal Size
Tightening torque
(ft.lbf)
Terminal block for remote controller (6P) M3.5 0.58 – 0.72
Power supply terminal block
M4 0.87 – 1.06
Power supply
Main
switch
Outdoor unit
Power supply wiring
Transmission wiring
Switch
Fuse
Indoor unit
Remote controller
L
1
L
2
IN/D OUT/D
F1 F2 F1 F2
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
P
1
P
2
P
1
P
2
Power supply
208-230V
60Hz~
L
1
L
2
Power supply
208-230V
60Hz~
L
1
L
2
Power supply
208-230V
60Hz~
L
1
L
2
Power supply
208-230V
60Hz~
No. 1
System
Control box
Most
downstream
indoor unit
Outdoor unit
Indoor unit A
Remote
controller
Remote
controller
Remote
controller
Remote
controller
Indoor unit B Indoor unit C
L
1
L
2
L
1
L
2
L
1
L
2
L
1
L
2
P
1
P
2
P
1
P
2
For use with
2 remote
controllers
L
1
L
2
IN/D OUT/D
F1 F2 F1 F2
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
Power supply
208-230V
60Hz~
L
1
L
2
Power supply
208-230V
60Hz~
L
1
L
2
Power supply
208-230V
60Hz~
L
1
L
2
Power supply
208-230V
60Hz~
No. 2
System
Control box
Most
downstream
indoor unit
Outdoor unit
Indoor unit A Indoor unit B Indoor unit C
L
1
L
2
L
1
L
2
L
1
L
2
V L
2
Remote
controller
Upper part of
remote controller
Lower part of
remote controller
Insert the screwdriver here and
gently work off the upper part of
remote controller
S
M
S
S
M
Remote controller
PC board
(Factory setting)
Only one remote
controller needs to be
changed if factory
settings have remained
untouched.