14 Electrical installation
Installation and operation manual
20
EKVDX32~100A2VEB
VRV system air conditioner
4P555815-1A – 2021.08
14.1
Specifications of standard wiring
components
Component
Power
supply cable
MCA
(a)
0.22 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
For specification refer to the installation
manual of the outdoor unit
User interface cable
0.75 to 1.25 mm
2
(2‑core wire)
H05RN-F (60245 IEC 57)
Length ≤300 m
Cable between VAM and
EKVDX
Length ≤100 m
Recommended field fuse
EKVDX32~80A2
6 A
EKVDX100A2
16 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
CAUTION
See
"2 Specific installer safety instructions"
5] to make
sure this installation complies with all safety regulations.
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 (≤300 m)
: Route the cable through the
frame, connect the wires to the terminal block (symbols P1, P2).
3
Transmission cable connection with VAM (≤100 m)
: Route
the cable through the frame, connect the wires to the terminal
block (symbols P1, P2).
4
Transmission cable connection with outdoor unit and/or
other EKVDX units
: Route the cable through the frame,
connect the wires to the terminal block (symbols F1, F2).
NOTICE
The F1, F2 connection wiring located inside the outdoor
unit MUST be shielded, when coming from the EKVDX.
NOTICE
Group control connection is NOT allowed.
5
Power supply cable
: Route the cable through the frame and
connect the wires to the terminal block (L, N, earth).
WARNING
The VAM and the EKVDX indoor unit MUST share the
same electrical safety devices and power supply.
a
b
a
Circuit breaker
b
Residual current device
3×
b
a
c
L N
10~15
70~90
10~20
10~15
70~90
7
P1P2 F1 F2 T1 T2
a
Power supply and earth wiring
b
Service cover with wiring diagram
c
Transmission wiring
6
Fix the cables
with tie wraps (see accessory bag) to the plastic
clamps.
Note:
One of the remaining two tie wraps from the
accessory bag is for the relay PCB wiring and one is a spare tie
wrap.
WARNING
If a gap is present at the cable entry, wrap the cable (or
cables) with the sealing material from the accessory bag.
This will prevent small objects (such as children's
fingers, ... etc.) as well as fluid droplets from entering the
unit.
+
+
=
=
7
Reattach the service cover.
