Step Press
buttons
Displayed
（
factory default
）
Press
▲、▼
to select
Descriptions
1
④
3 seconds
01 (0)
-3 --- +3
Adjust temperature coefficient
2
④
02
（
35
℃）
20
℃
—35
℃
Select maximum setting temperature for heating
3
④
03
（
5
℃）
5
℃
—20
℃
Select minimum setting temperature for cooling
4
④
04 (rE)
rd, rE
Memorize option before power loss
5
④
05
（
1
）
1
、
2
、
3
Display backlight option
6
④
06 (On)
OFF/On
Fan stop option
7
④
07 (18℃
)
10-18℃
Energy setpoint for heating
8
④
08 (25℃
)
25-30℃
Energy setpoint for cooling
9
④
09 (SC)
SC/OC/00
Activate energy saving mode option
1) Select temperature recalibrates Adjustment 3 LO to 3 HI
-
You can adjust the room temperature display up to 3 higher or lower. Your thermostat was accurately
calibrated at the factory but you have the option to change the display temperature to match your previous
thermostat.
2) Select maximum temperature for heating.
This feature provides a maximum setpoint temperature for heat. The default setting is 35
℃
, It can be
changed between 30
℃
to 35
℃
3) Select minimum temperature for cooling
This feature provides a minimum setpoint temperature for cooling. The default setting is 5
℃
, It can be
changed between 5
℃
to 20
℃
4) Memorize option before power loss
Using
▲
&
▼
button to select between “rE” and “rd”. “rE” means the thermostat will Memorize its ON
or OFF status before power loss. After power supply comes to normal again, the thermostat will remain ON or
OFF according to what it is before power loss. “rd” means no matter the thermostat is switched on or off before
power loss, after the power supply comes to normal again the thermostat will keep power off
5)
Display backlight option
Select 1 the light will be on when any button of the thermostat is touched. Select 2 the display will keep the
light on continuously. Select 3 the display will keep the light off continuously Factory default is 1
6) Fan stop option
Using
▲
&
▼
button to select between “On” and “OFF”. If you select “On”, the thermostat will turn on the
fan at a speed provided by the Fan Switch and will not stop the fan when there is no call for heat or cool. If you
select “OFF”, the thermostat will stop the fan when there is no call for heat or cool.
7) Select energy saving setpoint for heating
This feature provides energy saving setpoint temperature for heating. The default setting is 16
℃
, It can be
changed between 10
℃
to 18
℃
8) Select energy saving setpoint for cooling
This feature allows you to set energy saving setpoint temperature for cooling. The default setting is 25
℃
, It
can be changed between 25
℃
to 30
℃
9) Activate energy saving mode option
This feature allows you to select the way to activate the energy saving mode.
Select OC to activate the energy mode by open circuit
Select SC to activate the energy mode by close circuit
Select 00 to cancel the energy mode
4
Summary of Contents for ONX908FCT-4B/220V/RC
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