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5 Preparation
Complete system example
a
c
d
b
e
b
e
a
VRV outdoor unit
b
VRV indoor unit
c
Power supply
d
Main switch
e
User interface
5.4.2
Component electrical specifications
Model
350
500
Power supply
50 Hz
60 Hz
MCA (A)
1.56
2.08
MFA (A)
16
16
Fan motor
P (kW)
0.08×
0.08×
2
2
FLA (A)
0.62×
0.83×
2
2
MCA
Minimum Circuit Amps
MFA
Maximum Fuse Amps
P
Motor Rated Load
FLA
Full Load Amps
NOTICE
When using residual current operated circuit breakers,
make sure to use a high speed type 300 mA rated residual
operating current.
NOTICE
The power supply MUST be protected with the required
safety devices, i.e. a main switch, a slow blow fuse on
each phase and an earth leakage protector in accordance
with the applicable legislation.
NOTICE
See the engineering data book for details.
Installer and user reference guide
12
650
800
1000 1500 2000
198~264 V
198~242 V
2.80
4.39
4.90
8.78
9.80
16
16
16
16
16
0.106
0.21×
0.21×
0.21×
0.21×
×2
2
2
4
4
1.12×
1.76×
1.96×
1.76×
1.96×
2
2
2
4
4
5.4.3
Specifications for field supplied fuses and
wires
Power supply wiring
Field supplied
fuses
Wire
Size
Wire size MUST comply with the applicable
Transmission wiring
Wiring
Size
Precautions
When connecting more than one wire to the power supply wiring,
use a 2 mm² (Ø1.6 mm) gauge wire.
When using 2 power wires of a gauge greater than 2 mm²
(Ø1.6 mm), branch the line outside the terminal board of the unit, in
accordance with electrical equipment standards. The branch MUST
be sheathed to provide a degree of insulation equal to or greater
than the power supply wiring itself.
Keep the total current of crossover wiring between indoor units to
less than 12 A.
Do NOT connect wires of different gauge to the same grounding
terminal. Loose connections may diminish the protection.
For the user interface wiring, refer to the installation manual of the
user interface delivered with the user interface.
Wiring example
a
b
d
Out
1
2
L N
VRV
L N
1
2
1
2
P1 P2 F1 F1 T1 T1
c
e
P1
P2
VRV
g
a
Outdoor unit/BS unit
b
Switch box
c
Indoor unit
d
Power supply 220-240 V~50 Hz
e
User interface for VRV
f
Transmission wiring
g
User interface for heat reclaim ventilation unit
▪ All transmission wiring, except for the user interface wires, is
polarised and MUST match the terminal symbol.
16 A
H05VV-U3G
legislation.
Shielded wire (2 wire)
0.75~1.25 mm²
d
L N
HRV
P2 P1
F1 F2
JC
J1
J2 J3
L N
f
P1
P2
HRV
f
P1
P2
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
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