8 Finishing the indoor unit installation
Installation manual
11
ATXF20~42C5V1B
Daikin room air conditioners
3P519299-11X – 2020.12
WARNING
Keep the interconnection wiring away from copper pipes
without thermal insulation as such pipes will be very hot.
7.1
Specifications of standard wiring
components
Component
Power supply cable Voltage
220~240 V
Phase
1~
Frequency
50 Hz
Wire sizes
Must comply with
applicable legislation
Interconnection cable
Minimum cable section of
2.5 mm² and applicable
for 220~240 V
Recommended field fuse
20 A
Earth leakage circuit breaker
Must comply with
applicable legislation
7.2
To connect the electrical wiring to
the indoor unit
Electrical work should be carried out in accordance with the
installation manual and the national electrical wiring rules or code of
practice.
1
Set the indoor unit on the mounting plate hooks. Use the " "
marks as a guide.
b
a
c
a
Mounting plate (accessory)
b
Interconnection cable
c
Wire guide
2
Open the front panel, and then the service cover. Refer to
3
Pass the interconnection cable from the outdoor unit through
the feed-through wall hole, through the back of the indoor unit
and through the front side.
Note:
In case the interconnection cable was stripped in advance,
cover the ends with insulating tape.
4
Bend the end of the cable up.
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.
▪ In order to avoid any electrical interference the distance
between both wirings should ALWAYS be at least
50 mm.
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.
a
b
c
a
Terminal block
b
Electrical component block
c
Cable clamp
5
Strip the wire ends approximately 15 mm.
6
Match wire colours with terminal numbers on the indoor unit
terminal blocks and firmly screw the wires to the corresponding
terminals.
7
Connect the earth wire to the corresponding terminal.
8
Firmly fix the wires with the terminal screws.
9
Pull the wires to make sure that they are securely attached,
then retain the wires with the wire retainer.
10
Shape the wires so that the service cover fits securely, then
close the service cover.
8
Finishing the indoor unit
installation
8.1
To insulate the drain piping,
refrigerant piping and
interconnection cable
1
After the drain piping, refrigerant piping and the electrical wiring
are finished. Wrap refrigerant pipes, interconnection cable and
drain hose together using insulation tape. Overlap at least half
the width of the tape with each turn.
d
e
c
b
f
a
2×
a
Drain hose
b
Interconnection cable
c
Mounting plate (accessory)
d
Refrigerant piping
e
Indoor unit fixing screw M4×12L (accessory)
f
Bottom frame
8.2
To pass the pipes through the wall
hole
1
Shape the refrigerant pipes along the pipe path marking on the
mounting plate.
