To Connect The Electrical Wiring To The Indoor Unit - Daikin FXFN50A2VEB Installation And Operation Manual

14 Electrical installation
14.2 To connect the electrical wiring to
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 optional
equipment, see the installation manual delivered with
the optional equipment.
▪ 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 (symbols P1, P2) and fix
the cable with a tie wrap.
3 Transmission cable: Route the cable through the frame,
connect the cable to the terminal block (make sure the symbols
F1, F2 match with the symbols on the outdoor unit), and fix the
cable with a tie wrap.
4 Appropriate measures (field supply): If installation is required
in accordance with "12.1.2 Additional
requirements for CO₂ refrigerant" [ 4 14], connect them to the
terminal block (symbols T1, T2). See
appropriate measures for appliances filled with
5 Power supply cable: Route the cable through the frame and
connect the cable to the terminal block (L, N, earth).
a Circuit breaker
b Residual current device
6 Divide the small sealing (accessory) and wrap it around the
cables to prevent water from entering the unit.
7 Seal all gaps with a sealing material (field supply) to prevent
small animals from entering the system.
8 Reattach the service cover.
b
c
d
c
a Service cover (with wiring diagram)
Installation and operation manual
20
installation site
"14.3 To connect
CO₂" [ 4 21].
a
b
d
10~15
7
e
70~90
b
e
a
(mm)
b Opening for cables
c Connection of power supply
d Tie wrap
e Connection of user interface and transmission cable
Complete system example
▪ Example: 1 user interface controls 1 indoor unit.
a
Control box
IN/D OUT/D
F F F F
1 2 1 2
L N L N
L N L N
P P F F T T P P F F
1 2 1 2 1 2 1 2 1
b
P P P P
1 2 1 2
c
a Outdoor unit
b Indoor unit
c User interface
d Most downstream indoor unit
▪ Example: Group control or use with 2 user interfaces.
a
Control box
IN/D OUT/D
F F F F
1 2 1 2
L N
L N L N
P P F F T T P P F F T
1 2 1 2 1 2 1 2 1 2
b
P P
c 1 2
a Outdoor unit
b Indoor unit
c User interface (controls 3 indoor units)
d Most downstream indoor unit
e For use with 2 user interfaces
▪ Setting master unit (Cooling/Heating masterhood). In case of
group control, connect the user interface wiring directly to the
master unit. Do not connect user interfaces directly to slave units.
Slave units are restricted in their operation by the master unit (e.g.
1 outdoor unit does not allow for 1 indoor unit to run in cooling
operation while another runs in heating operation). For setting
using the user interface, refer to the manual or reference guide of
the user interface.
INFORMATION
In case of group control, it is not necessary to assign a
group address to the indoor unit. The group address is
automatically set when the power is turned on.
L N L N
L N L N
T T P P F F T T P P F F
2 1 2 1 2 1 2 1 2 1 2 1 2
P P P P
1 2 1 2
d
L N L N
T P P F F T T P P F F T T
1 2 1 2 1 2 1 2 1 2 1 2 1
P P
e
1 2
FXFN50~112A2VEB
CO₂ Conveni-Pack: indoor unit
3P672850-1A – 2021.07
d
T T
1 2
2
P P
1 2