Signal Amplifier - Fujitsu AIRSTAGE J-III L AJ 072LELAH Series Design & Technical Manual

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)
„
1Ø 50/60 Hz
220-240 V
SWITCH
TERMINAL
RESISTOR*
(DIP SW setting)
X1
IN/U-
OUT/U
FUSE (3 A)
INDOOR UNIT
TRANS-
POWER
MISSION
SUPPLY
L
X1 X2
X2 Z1 Z2 H1 H2
OTHER MULTI
CYCLE OUT/U
OUTDOOR UNIT
(MASTER UNIT)
- (05 - 189) -
Segment B
Segment A
SIGNAL AMPLIFIER
NO HIGH VOLTAGE
TRANSMISSION
CH A CH B
N
X1 X2 X1 X2
TERMINAL
RESISTOR*
TO SLAVE
UNIT
INDOOR UNIT
TRANS-
MISSION
X1 X2
Transmission Line