CONFIGURATION
The configuration menu allows you to set certain thermostat operating characteristics to your system or
personal requirements. Switch off the thermostat and hold the sleep operation Button
for over 3 second till
④
power on again means you have entered the first configuration menu item. There are 6 menu items. Press
button
to change to the next item. To exit the menu and return to the normal operation, switch off the
④
thermostat and switch it on
aga
in. If no keys are pressed within 20 seconds the thermostat will be switched off.
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 (rd)
rd, rE
Memorize option before power loss
5
④
05
（
FA
）
FA/SL
Second stage fast or slow
6
④
06
（
1
）
1
、
2
、
3
Display backlight option
7
④
06 (On)
On/Off
Fan option is heating mode.
8
④
07 (3)
0,3,5
Minimum compressor off-time setting
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) Second stage fast or slow
Select FA to start 2nd stage immediately when the set point is manually raised more than 2
℃
in HEAT or
lowered more than 2
℃
in COOL from room temperature . Select SL, the second stage will delay approximately 15
minutes before starting.
6)
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
7) Fan option in heating mode
If your system requires the thermostat to turn on the fan on a call for heat, select
On.
If your system
does not require the thermostat to energize the fan on a call for heat such as fossil fuel (gas, oil, etc.), forced
air system as well as hydraulic heating system, select
Off.
8)
Minimum
compressor off-time cycle setting
To protect compressor from short cycling, you can select compressor off-time cycle, 3 means off-time cycle is 3
minutes, 5 means off-time cycle is 5 minutes. When the thermostat compressor time delay occurs it will flash Cool
on display for the time you have selected. Select 0 means you have canceled the function.
4
Summary of Contents for ONX908MTW-0/24V
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