Turning On The Power; Led Display; Normal Code; Error Code - Fujitsu UTY-TTRX Installation Manual

9. TURNING ON THE POWER

(1) Check this product wiring and switch settings on the circuit board.
(2) Check the wiring and switch settings for the VRF system or multi
system or single model. For the wiring and switch settings method,
refer to the installation instruction sheet of each unit.
(3) Turn on the power for the VRF system etc.
(4) Power will be supplied from the indoor unit to this product.
▪ This product will be initialized and the power turned on.
LED1 (green) and LED2 (orange) will fl ashing.
▪ After initial setting is completed, operation will be restarted auto-
matically.
LED1 (green) lights.
▪ This product does not operate during initialization.
* An error code will appear on LED in the event of a malfunction.

10. LED DISPLAY

10. 1.

Normal code

Normal indications
LED1 LED2 LED3
(green) (orange) (red)
Display mode : On
: Off
: 1s ON / 1s OFF
10. 2.

Error code

Error indications
LED1 LED2 LED3
(green) (orange) (red)
(n) (n)
(n) (n)
Display mode : On
: Off
: 0.5s ON / 0.5s OFF
: 0.1s ON / 0.1s OFF
( ) : Number of flashing
En-7
Normal contents
LED4
(blue)
During initialization (during
initialization sequence)
Normally operating
Error contents
LED4
(blue)
Thermostat convertor error
Indoor unit error

11. USAGE

• For the usage and installation of thermostat controller,
refer to the operating manual and installation manual of
thermostat controller.