Prem-I-Air EH1920 Manual page 5

3. Extend the adjustable window kit the length of
the window
4. Close your window to secure the kit in place. It
needs to hold the window kit firmly in place.
5. Attach the hose connector to the exhaust air
outlet of the unit.
6. Adjusting the length of the flexible exhaust
hose, and avoiding bends in the hose, then
place the AC in the desired location.