En-3
Note :
Router should be needed by the number of
controlling items in the BMS.
*1. Please do not make the connection like this
between VRF systems.
Maximum connectable indoor unit
number per 1 Network Convertor
128
Maximum connectable outdoor unit
number per 1 Network Convertor
100
Maximum connectable Network
Convertor number per 1 BMS
4
Maximum connectable Network
Convertor number per 1 VRF System
1
POWER
SUPPLY
L
N
电 源
X1
X2
B1
B2
TRANSMISSION
NO HIGH VOLTAGE
VRF
LON
禁止
信号线
NO HIGH VOLTAGE
NO HIGH VOLTAGE
NO HIGH VOLTAGE
X1 X2
Y1 Y2 Y3
X1 X2
Z1 Z2
H1 H2
X1 X2
Y1 Y2 Y3
1Φ 50/60Hz
208-240V
ELECTRICAL WIRING
General-purpose building control computer
(L
ON
W
ORKS
®
device)
TRANSMISSION
CABLE
Router
(Field supplied)
INDOOR UNIT
TRANSMISSION CABLE
OUTDOOR UNIT
MASTER
OR
SLAVE
OUTDOOR
UNIT
INDOOR UNIT
Network Convertor
Power supply cable
Transmission cable to
L
ON
W
ORKS
®
network
Transmission cable to
VRF network
NETWORK CONVERTOR
POWER SUPPLY CABLE
FUSE (3A)
SWITCH (DISCON-
NECT SWITCH)
Note :
Do not bind the power supply cable and transmission
▪
cable to avoid an erroneous operation.
Use shield cable for transmission cable.
▪
The shield metal should be earthed (grounded).
Do not forget to
▪
earth (ground) the Network Convertor.
Install the disconnect switch to the easily accessible loca-
▪
tion.
Install the fuse (3A) to the L line of power supply cable.
▪
Confirm the name of each unit and name of each terminal
block of the unit and connect the wiring in accordance
with the directions given in the manual so that there is no
incorrect wiring. Incorrect wiring will damage the electric
parts and cause smoke and fire.
When installing the connection cables near a source of
electromagnetic waves, use shielded cable.
Otherwise, a breakdown or malfunction could result.
The terminal screws and earth (ground) screws have dif-
ferent shapes. Be sure to install the screws in the correct
locations. If the screws are installed in the wrong loca-
tions, the circuit board could be damaged.
Wiring method
51 11
*1
PROPER SYSTEM DIAGRAM
L
ON
W
ORKS
®
Network
Outdoor unit
Indoor unit
VRF network system 1
Outdoor unit
Indoor unit
VRF network system 2
Lighting
facilities
Security
system
Automatic fire
alarm interface
Ventilation
system
General-purpose
building control computer
(L
ON
W
ORKS
®
device)
Network
Convertor for
L
ON
W
ORKS
®
(UTY-VLGX)
Network
Convertor for
L
ON
W
ORKS
®
(UTY-VLGX)
VRF
Outdoor unit
Indoor unit
Transmission cable
(non-polar
2-conductor)
Router
(Field supplied)
