1.Fix the reinforcing neck to the structure *Fix the reinforcing neck according to the ventilation fan specifications (not for sale) *Install a separate external screen (not for sale)
2.Secure the reinforcing neck and ventilator with the attached screws to prevent them from moving
3.Perpendicular to the wall
4.Connect the power safely after confirming that the breaker is OFF
5.Recommended installation size (mm) 225x225 or 230Ø