Arranged at the bottom of the front panel. It has 3 identified terminals (T = grounding / N = neutral / L = phase):
1. Open the air filter access cover and flap.
2. Remove the screws that secure the case and display.
3. After removing the screws, detach the display and remove the cabinet.
4. Loosen the power input terminal block (center screw) and connect the cables (ground / neutral / phase).
