Fujitsu AB* A12GATH, Design & Technical Manual

Page: 657 / 1124

3-10. SIGNAL AMPLIFIER
„ „
MODEL: UTY-VSGXZ1
If the total length of transmission line exceeds 500 m, or the number of elements exceeds 64
units, Signal Amplifier will be necessary to use.
● Transmission line length can be extended up to 3600 m with multiple signal
amplifier.
● Up to 8 Signal Amplifier (Filter mode is OFF) can be installed in 1 VRF
network system.
● Up to 32 Signal Amplifier (Filter mode is ON) can be installed in 1 VRF
network system.
● When installing 321 or more indoor units, install 1 Signal amplifier (Filter
mode is ON) for every 64 indoor units. (However, only when VR-II Series is installed.)
● To prevent the drop of signal level by taking distance of length or quantity of unit in VRF network with
installing signal amplifier, signal level can be recovered.
„ „
ELECTRICAL WIRING
„ z
Except in the case of V and S SeriesI
(Indoor unit is installed 320 units or less)
CH A CH B
X1 X2 X1 X2
L N
TRANSMISSION
POWER
SUPPLY
NO HIGH VOLTAGE
IN/U-
OUT/U OTHER
CYCLE MULTI
OUT/U
X1 X2
TRANS-
MISSION
X1 X2
TRANS-
MISSION
X1 X2 Z1 Z2 H1 H2
1Ø 50/60 Hz
220-240 V
FUSE (3 A)
SWITCH
Segment A
Segment B
TERMINAL
RESISTOR*
TERMINAL
RESISTOR*
(DIP SW setting)
Transmission Line
OUTDOOR UNIT
(MASTER UNIT)
TO SLAVE
UNIT
INDOOR UNIT
INDOOR UNIT
SIGNAL AMPLIFIER
- (05 - 189) -
C
O
N
TRO
L
SY
ST
EM
C
O
N
TRO
L
SY
ST
EM