Fujitsu AB* A12GATH, Design & Technical Manual

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2. For connecting group remote controller(s)
● Up to a total of 16 network convertors, Central remote controller and Touch panel controller
can be connected in 1 VRF network system.
● 4 group remote controllers can be connected to 1 network convertor.
● 2 refrigerant systems can be covered by 1 network convertor.
„ „
SYSTEM DIAGRAM
VRF Network
Network Convertor
(UTY-VGGXZ1)
Group Remote Controller
„ „
ELECTRICAL WIRING
L N
POWER
L1
L3
L2
L4
X1 X2
TRANSMISSION
Y1 Y2 Y3 J1
REMOTE INDOOR UNIT
REMOTE CONTROLLER LINE
J2 J3
1Ø 50/60 Hz
208-240 V
SWITCH
FUSE (3 A)
Transmission Line
to VRF System
Transmission Line
to VRF System
Power Supply
NETWORK CONVERTOR
Group Remote Controllers (Max. 4 sets)
L1 L2 L3 L4
Y1 Y2 Y3 J1
REMOTE INDOOR UNIT
REMOTE CONTROLLER LINE
J2 J3
RC line to
indoor unit
RC line
to RC
Transmission line
Power
supply
● Total remote controller cable
length L1+L2+L3+L4
<
=
100 m
● It is recommended to use a
terminal box when there is
wring junction.
or
NOTES:
● Do not bind the power cable and remote controller cable to avoid an erroneous operation.
● Use shield cable for transmission line and remote controller line. The shield metal should be grounded.
● Use ground wire to ground the network convertor.
- (05 - 128) -
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