3-8. SIGNAL AMPLIFIER
MODEL: UT Y-VSGX Z1
If the total length of transmission line exceeds 1,640ft. (500m), or the number of units exceeds 64
units, A signal amplier will be required.
● Transmission line length can be extended up to 11,811 ft. (3,600m) 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 indoor unit is installed 321 or more, install one Signal amplifier (Filter mode is ON) for every 64
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 amplier, signal level can be recovered.
ELECTRICAL WIRING
z
Except in the case of V and S Series
(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
1Ø50 Hz
220-240 V
FUSE (3 A)
SWITCH
Network
Segment A
Network
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 - 171) -
CONTROL
SYSTEM
CONTROL
SYSTEM
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