¢
LED display
• Normal code
LED1
(Green)
LED2
(Orange)
LED3
(Red)
LED4
(Blue)
Contents
● ● Off Off During initialization sequence
On Off Off Off Normally operating
●: 1 s On/1 s Off
• Error code
LED1
(Green)
LED2
(Orange)
LED3
(Red)
LED4
(Blue)
Contents
●
(N)
●
(N)
○ Off Thermostat convertor error
●
(N)
●
(N)
○ On Indoor unit error
●: 0.5 s On/0.5 s Off
○: 0.1 s On/0.1 s Off
(N): Number of flashing
For flashing number of each error code and the details, refer to “ERROR CODES” in the installa-
tion manuals of indoor units.
3-5. Thermostat convertor (UTY-TTRX) - (05-141) - 3. Adaptor/Convertor units
CONTROL
SYSTEM
CONTROL
SYSTEM
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