Ortech Y-H2 Operation & Installation Instructions page 27


Fix the range hood with safety screw. The two safety vents are positioned on the back casing,
with diameter of 6mm.

Put the one-way valve onto the cooker hood.
Method 2:

Drill 4 holes of 6mm diameter at the bottom of the hanging cupboard

Put the one-way valve on the range hood, then install the range hood on the bottom of the
cupboard, tighten the hood with enclosed 4 screws.

Install the adjusted board on the bottom of the hood in order to keep out the gap between
hood back and cupboard.
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