Fujitsu AB* A12GATH, Design & Technical Manual

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3-12. EXTERNAL SWITCH CONTROLLER
3-12-1. MODEL: UTY-TERX
● Switching of air conditioner settings can be performed using an external
switch controller and a third-party device.
● ON/OFF, Temperature, Fan Speed, Operating and Remote controller
prohibition Mode can be switched using external devices, such as a room
card-key.
● Card-key or other sensor switches are available as a locally purchased
parts.
„ „
SYSTEM DIAGRAM
A B
C
Indoor Unit
SW
External
input cable
External switch
controller
Remote
controller cable
Remote
controller cable
Remote controller
Use A B B + C
2-wire type 50 m or less - 500 m or less
3-wire type 50 m or less 25 m or less 500 m or less
„ „
ELECTRICAL WIRING
„ z
For non-polar 2 wire
EXIN2 EXIN1
Remote
Controller Cord
REMOTE
CONTROL
External input cable Remote controller cable
External switch controller Indoor unit
„ z
For polar 3 wire
External input cable Remote controller cable
External switch controller Indoor unit
EXIN2 EXIN1
Remote
Controller Cord
REMOTE
CONTROL
- (05 - 196) -
C
O
N
TRO
L
SY
ST
EM
C
O
N
TRO
L
SY
ST
EM