To limit the temperature on the back lit controller with the model number being UTY-RNNYN, set the following swtiches


 

As to upper limits for heating of UTY-RNNYN is below.


2-4
 2-5
 2-6
 Heating Upper setting temp limit.
OFF
 OFF
 OFF
 30℃
ON
 OFF
 OFF
 26℃
OFF
 ON
 OFF
 25℃
ON
 ON
 OFF
 24℃
OFF
 OFF
 ON
 23℃
ON
 OFF
 ON
 22℃
OFF
 ON
 ON
 21℃
ON
 ON
 ON
 20℃


Cooling lower limit


2-1
 2-2
 2-3
 Cooling/dry lower setting temp limit.
OFF
 OFF
 OFF
 18 ℃
ON
 OFF
 OFF
 22 ℃
OFF
 ON
 OFF
 23℃
ON
 ON
 OFF
 24℃
OFF
 OFF
 ON
 25℃
ON
 OFF
 ON
 26℃
OFF
 ON
 ON
 27℃
ON
 ON
 ON
 28℃