Daikin FCQ18PVJU Installation Manual page 12

Connect wires of
the same gauge to
both sides.
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.
Terminal
Transmission terminal block (6P)
Power supply terminal block (3P)
3. Do not connect wires of different gauge to the same ground
terminal. Looseness in the connection may deteriorate
protection.
4. Outside of the unit, keep transmission wire at least 5 in.
away from power supply wire. The equipment may malfunc-
tion if subjected to electrical (external) noise.
5. For remote controller wire, refer to the "INSTALLATION
MANUAL OF REMOTE CONTROLLER" attached to the
remote controller.
10-2 WIRING EXAMPLE
• Fit the power supply wire of each unit with a switch and
fuse as shown in the drawing.
COMPLETE SYSTEM EXAMPLE
Power supply
Main
Outdoor unit
switch
Indoor unit
Remote controller
11
Tightening torque
Size
(ft.lbf)
M3.5 0.58 - 0.72
M4 0.87 - 1.06
Power supply wire
Transmission wire
Switch
Fuse
1. When using 1 remote controller for 1 indoor unit.
(Normal operation)
Power Supply
208-230V
~
60Hz
L L
1 2
Indoor unit
2. When using 2 remote controllers for 1 indoor unit.
Power Supply
208-230V
~
60Hz
L L
1 2
Indoor unit
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.
10-3 CONTROL BY 2 REMOTE CONTROLLERS
(Controlling 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 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.
Insert the screwdriver here and
gently work off the upper part of
remote controller
Outdoor unit
Control box
IN/D OUT/D
F 1 F 2 F 1 F 2
L L P P F F T T
1 2 1 2 1 2 1 2
P P
1 2
Remote
controller
Outdoor unit
Control box
IN/D OUT/D
F 1 F 2 F 1 F 2
L L P P F F T T
1 2 1 2 1 2 1 2
P P P P
1 2 1 2
For use with
2 remote
controllers
Upper part of
remote controller
Lower part of
remote controller
English