14 Electrical installation
Installation and operation manual
17
FXDA10~63A2VEB
VRV system air conditioner
3P599562-1 – 2020.05
Pipe outer diameter
(Ø
p
)
Insulation inner
diameter (Ø
i
)
Insulation thickness
(t)
6.4 mm (1/4")
8~10 mm
≥10 mm
9.5 mm (3/8")
12~15 mm
≥13 mm
12.7 mm (1/2")
14~16 mm
≥13 mm
Ø
i
Ø
i
t
Ø
p
Ø
p
If the temperature is higher than 30°C and the humidity is higher
than RH 80%, the thickness of the insulation materials should be at
least 20 mm to prevent condensation on the surface of the
insulation.
13.2
Connecting the refrigerant piping
DANGER: RISK OF BURNING/SCALDING
13.2.1
To connect the refrigerant piping to the
indoor unit
CAUTION
Install the refrigerant piping or components in a position
where they are unlikely to be exposed to any substance
which may corrode components containing refrigerant,
unless the components are constructed of materials that
are inherently resistant to corrosion or are suitably
protected against corrosion.
WARNING: MILDLY FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
▪
Pipe length
. Keep refrigerant piping as short as possible.
▪
Flare connections
. Connect refrigerant piping to the unit using
flare connections.
▪
Insulation
. Insulate the refrigerant piping on the indoor unit as
follows:
B
A
a
d
c
e f
b
b
a
d
c
e f
b
b
2
3
1
2
3
4
g
1
A B
A
Gas piping
B
Liquid piping
a
Insulation material (field supply)
b
Tie wraps: Large (accessory)
c
Insulation pieces: Large (gas pipe), small (liquid pipe)
(accessory)
d
Flare nut (attached to the unit)
e
Refrigerant pipe connection (attached to the unit)
f
Unit
g
Sealing pads: Middle (gas pipe) (accessory)
1
Turn up the seams of the insulation pieces.
2
Attach to the base of the unit.
3
Tighten the tie wrap on the insulation pieces.
4
Wrap the sealing pad from the base of the unit to the top
of the flare nut.
NOTICE
Make sure to insulate all refrigerant piping. Any exposed
piping might cause condensation.
14
Electrical installation
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
WARNING
Use an all-pole disconnection type breaker with at least
3 mm between the contact point gaps that provide full
disconnection under overvoltage category III.
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.
14.1
Specifications of standard wiring
components
Component
Class
10
15
20~32
40
50
63
Power
supply
cable
MCA
(a)
0.3 A 0.4 A
0.6 A
0.8 A
0.9 A
1 A
Voltage
220~240 V
Phase
1~
Frequency
50/60 Hz
Wire sizes
1.5 mm
2
(3‑core wire)
H07RN-F (60245 IEC 66)
Transmission wiring
0.75 to 1.25 mm² (2‑core wire)
H05RN-F (60245 IEC 57)
User interface - maximum 500 m
User interface cable
Recommended field
fuse
6 A
Residual current
device
Must comply with applicable legislation
(a)
MCA=Minimum circuit ampacity. Stated values are maximum
values (see electrical data of indoor unit for exact values).
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.
Summary of Contents for FXDA10A2VEB
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