Daikin FUY71FJV1 Installation Manual Download

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English

ELECTRIC WIRING WORK

• All field supplied parts and materials and electric works

must conform to local codes.

• Use copper wire only.
• For electric wiring work, refer also to “WIRING DIAGRAM”

attached to the unit body.

• For remote controller wiring details, refer to the installation

manual attached to the remote controller.

• All wiring must be performed by an authorized electrician.
• A circuit breaker capable of shutting down power supply to

the entire system must be installed.

• Refer to the installation manual attached to the outdoor unit

for the size of power supply electric wire connected to the
outdoor unit, the capacity of the circuit breaker and switch,
and wiring instructions.

• Be sure to ground the air conditioner
• Do not connect the ground wire to gas pipes, plumbing

pipes, lightning rods, or telephone ground wires.

• Gas pipes: might cause explosions or fire if gas leaks.
• Plumbing: no grounding effect if hard vinyl piping is used.
• Telephone ground wires or lightning rods: might cause

abnormally high electric potential in the ground during
lighting storms.

• Specifications for field wire

The remote control cord should be procured locally. Refer to
the Table 4 when preparing one.

Table 4

NOTE

1. Shows only in case of protected pipes. Use H07RN-F in

case of no protection.

2. Insulated thickness : 1mm or more

<Methods of wiring units and connecting remote control-
ler cords> (Refer to Fig. 32)

• Wiring the units connections

Remove the switch box cover, and align the phases with
those of the power terminal block inside to connect.
Securely fix the wires with the included clamp material A,
then fix them with the clamp material C likewise.

• Remote controller cords connections

(not necessary for slave unit of simultaneous operation sys-
tem)
Connect to the remote controller terminal block. (no polarity)
Securely fix the remote controller cord with the included
clamp material B, then fix it with the clamp material D like-
wise.

CAUTION

• When clamping wiring, use the included clamping material

to prevent outside pressure being exerted on the wiring con-
nections and clamp firmly. When doing the wiring, make
sure the wiring is neat and does not cause the control box
lid to stick up, then close the cover firmly.

• When attaching the control box lid, make sure you do not

pinch any wires.

• After all the wiring connections are done, fill in any gaps in

the through holes with putty or insulation (procured locally)
to prevent small animals and insects from entering the unit
from outside. (If any do get in, they could cause short cir-
cuits in the electric box.)

• Outside the machine, separate the weak wiring (remote con-

trol cord) and strong wiring (interunit, ground, and other
power wiring) at least 50 mm so that they do not pass
through the same place together. Proximity may cause elec-
trical interference, malfunctions, and breakage.

CAUTION

• Do not connect wires of different gauge to the same power

supply terminal.
(Looseness in the connection may cause overheating.)

• Observe the notes when wiring to the power supply terminal

board.
(Use a round crimp-style terminal with insulation sleeve for
connection to the power supply terminal board. In case it
cannot be used due to unavoidable reasons, connect wires
of the same gauge to the both side as shown in Fig. 33.)

Follow the instructions below if the wiring gets very hot
due to slack in the power wiring.

• In wiring, make certain that prescribed wires are used, carry

out complete connections, and fix the wires so that outside
forces are not applied to the terminals.

• 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 screw are tightened too hard, screws might

be damaged.

• Refer to the table below for the tightening torque of the ter-

minal screws.

Wire

Size (mm

)