Beko 30 Inch Over the Range Convection Microwave Installation Guide - Manual (Page 22)

Over The Range Convection Microwave Oven / Installation Manual 22 / 63 EN
A7. Connecting ductwork
1. Extend the house duct down to connect to the
exhaust adaptor.
2. Seal exhaust duct joints using furnance duct
tape for high temperature applications.
House Duct
5 Installation