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 product to the reinforcing neck *Fix firmly with the attached screws
3.Perpendicular to the wall
4.Connect the power safely after confirming that the breaker is OFF
5.Recommended installation size (mm) 280x280 or 285Ø