Lennox LICH4012021T431E-1, Service Manual

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Controller
Electrical Control System
155
Buttons and functions
1. Adjust
: Decrease the set temperature Keeping pressing will decrease the temp with 1
℃
per 0.5s.
2. Adjust : Increase the set temperature Keeping pressing will increase the temp with 1
℃
per 0.5s.
3. MODE : Once pressing, running mode will be selected in the following sequence:
NOTE: No heating mode for cool only type unit.
4. VERT SWING: Used to stop or start horizontal louver movement or set the desired up/down air flow
direction. The louver changes 6 degree in angle for each press. If keep pushing more than 2 seconds, the
louver will swing up and down automatically.
5. HORIZ SWING: Used to stop or start vertical louver movement.
6. AIR DIRECTION : Used to set the desired up/down air flow direction. The louver changes 6 degree in
angle for each press.
7. ON/OFF : For turning on or turning off the air conditioner.
8. FAN SPEED: Fan speed will be selected in following sequence once pressing this button:
9. TIME ON: For time ON setting. Once pressing this button, the time will increase by 0.5 hour. When the set
time exceeds 10 hours, pressing the button will increase the time by 1 hour. Adjusting the figure to 0.00 will
cancel time ON setting.
10. ECO: Activate or turn off economic operation mode. It is suggested to turn on this function when
sleeping. (Only available when remote controller is used with corresponding unit.)
11. TIME OFF: For time OFF setting. Once pressing this button, the time will increase by 0.5 hour. When the
set time exceeds 10 hours, pressing the button will increase the time by 1 hour.
Adjust the figure to 0.00 will cancel time ON setting.
12. C/H (inner located): Press this button with a needle of 1mm to shift the mode between Cooling only and
Cooling & Heating according to the feature of the machine.
13.RESET (inner located): Press this button with a needle of 1mm to cancel the current setting and reset
remote controller.
AUTO COOL DRY HEAT FAN
AUTO LOW MED HIGH