Wiring Method - Fujitsu Airstage UTY-VTGX Installation Manual

5. 1.

Wiring method

5. 1. 1. Setting method when connecting a single split
indoor unit
VRF System
Single Split System
VRF VRF Outdoor unit for
Outdoor unit Indoor unit
Wired remote
Transmission cable
controller (non-polar 2-conductor)
Connectable types of indoor unit and remote controller
 Connectable remote controllers
5 types of wired remote controller shown in the table below can be
connected to this unit.
The indoor unit that can be connected is the indoor unit that can con-
nect to following remote controller.
Model name
*
UTY-RNR
UTY-RLR *
UTB- * UD
UTY-RNN **
UTY-RVN **
( * arbitrary character)
 About operation of remote controller for each type to be connected
Operation
Operation of louver from VRF
Operation of louver from wired remote con-
troller
Restriction of wireless remote controller
from central
Restriction of wired remote controller from
central
Antifreeze
Setting high and low temperature limit
Indoor unit rotation
Turning off indoor unit external thermostat
Outdoor unit forced stop
Outdoor unit capacity save
Outdoor unit low noise
Electricity distribution
Display model name
System time
Remote setting
Local setting by the wired remote controller
En-3
Group of Single Split System *1 *2
Multi System
Outdoor unit
for single split
multi system
system
Remote Network
convertor
controller cable
RC number
** Non-polar 2 wire
AR-WEC
AR-WFA **
AR-WFB **
Non-polar 2 wire
AR-WFC **
AR-WFD **
AR-6TC ** Polar 3 wire
Polar 3 wire
AR-WAE **
AR-WDC **
Polar 3 wire
AR-WDD **
Non-polar
2 wire
















[Example of connecting single split type indoor unit in a parallel arrange-
ment]
Case 1: For non-polar 2 wire
Wired
remote
controller
Max. 1 unit
Case 2: For polar 3 wire
Indoor unit
for single
split system
*1. Up to 16 indoor units may be controlled with a single network con-
vertor, however multiple indoor units connected to the network con-
vertor are generally required to have the same operation setting.
*2. Connect a single multi system to a single network convertor. 2 units
Type or more of multi systems cannot be connected. Multi system and
single split system can also be connected simultaneously.
Ex. 1) If FAN setting is selected from the control unit, the LED on the
indoor unit will fl ash and the unit will enter the operation standby
condition. Select another operation mode to clear the standby
condition.
Polar 3 wire
Ex. 2) If an operation mode that is different from a currently operating
indoor unit is selected from the control unit, the LED on the in-

door unit will fl ash and the unit will enter the operation standby

condition. Select the operation mode of the currently operat-
ing indoor unit to clear the standby condition. Or, if operation
 becomes possible, such as by stopping the other indoor unit,
the standby condition will be cleared and the indoor unit will
automatically start operating with the selected mode.













Transmission
Cable
Indoor unit
Max. 16 units
NETWORK CONVERTOR
Transmission Cable
Wired remote
controller
Indoor unit
Max. 1 unit
Max. 16 units
NETWORK CONVERTOR
Multi system Single
Split