Lennox LICH4012021T431E-1, Service Manual

Page: 164 / 164

Controller
Electrical Control System
162
The wired controller will reset to factory setting with auto mode, auto fan and 24
℃
setting temperature when
the air conditioner restarts after power failure.
And this may cause inconsistent displays on the wired controller and on the air conditioner. You need to
readjust the running status through the wired controller.
Installation
Installation Notice:
When the air conditioner needs the constant frequency wire controller, be sure adding a wire joint with 5
terminal named A, B, C, D, E in indoor unit, and fixing an infrared emitter whose anode and cathode
connecting with A and B near the receiver in the indoor unit switch board, then connecting the te5v,
GND, Run in the switch board to C,D,E respectively.
NOTE
●
The connecting wire should be a little longer as to take away the switch board easily for maintenance.
●
The connecting wire should be a little longer as to take away the controller easily for maintenance.