Arctic King MWDUL-10CRN1-BCJ4 Operator's Manual page 13

Peel off protective backing
4.
5. Securely attach a siding-protection board
6. Place platform assembly,
7. Adjust platform assembly
to the outside,
8. Level platfrm assembly from side-to-side.
9. Measure height of window opening
Installation Instructions
it is tilted 3~4°
on the right.
12
3~4°