Daikin FFA50A2VEB9, Installer And User Reference Manual

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6 Installation
Installer and user reference guide
17
FFA25~60A2VEB(9)
Split system air conditioners
4P550955-4 – 2018.08
6.4.2 Precautions when connecting the
electrical wiring
INFORMATION
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
WARNING
If the supply cord is damaged, it MUST be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
6.4.3 Guidelines when connecting the electrical
wiring
Keep the following in mind:
▪ If stranded conductor wires are used, install a round crimp-style
terminal on the end of the wire. Place the round crimp-style
terminal on the wire up to the covered part and fasten the terminal
with the appropriate tool.
b a
a Stranded conductor wire
b Round crimp-style terminal
▪ Use the following methods for installing wires:
Wire type Installation method
Single-core wire
c b
c
a a
A
AA´
A´
a Curled single-core wire
b Screw
c Flat washer
Stranded conductor
wire with round
crimp-style terminal
c b b a c
a
B
B
a Terminal
b Screw
c Flat washer
O Allowed
X NOT allowed
Tightening torques
Wiring Screw size Tightening torque
(N•m)
Interconnection
cable
(indoor↔outdoor) M4 1.18~1.44
Wiring Screw size Tightening torque
(N•m)
User interface cable M3.5 0.79~0.97
6.4.4 Specifications of standard wiring
components
Component Specification
Interconnection cable
(indoor↔outdoor) Minimum cable section of
2.5 mm² and applicable for
230 V
User interface cable Vinyl cords with 0.75 to
1.25 mm² sheath or cables
(2‑core wires)
Maximum 500 m
6.4.5 To connect the electrical wiring on the
indoor unit
NOTICE
▪ Follow the wiring diagram (delivered with the unit,
located at the inside of the service cover).
▪ For instructions on how to connect the decoration panel
and the sensor kit, see the wiring instruction sheet
(delivered with the unit, inside the accessory bag).
▪ Make sure the electrical wiring does NOT obstruct
proper reattachment of the service cover.
It is important to keep the power supply and the transmission wiring
separated from each other. In order to avoid any electrical
interference the distance between both wirings should ALWAYS be
at least 50 mm.
NOTICE
Be sure to keep the power line and transmission line apart
from each other. Transmission wiring and power supply
wiring may cross, but may NOT run parallel.
1 Remove the service cover.
2 User interface cable : Route the cable through the frame,
connect the cable to the terminal block, and fix the cable with a
cable tie.
3 Interconnection cable (indoor↔outdoor): Route the cable
through the frame, connect the cable to the terminal block
(make sure the numbers match with the numbers on the
outdoor unit, and connect the earth wire), and fix the cable with
a cable tie.
4 Divide the small sealing (accessory) and wrap it around the
cables to prevent water from entering the unit. Seal all gaps to
prevent small animals from entering the system.
WARNING
Provide adequate measures to prevent that the unit can be
used as a shelter by small animals. Small animals that
make contact with electrical parts can cause malfunctions,
smoke or fire.
5 Reattach the service cover.
▪ Pair type or multi-system. 1 user interface controls 1 indoor unit.