LG LW8011ER Owner's Manual page 16

Installation
3=4. Fasten the support bracket (Type H)
using a screw removed from the air
conditioner cabinet. Attach the
support bracket (Type H) to the inner
window sill with a screw (Type B).
Support Bracket (Type H)
4. Window installation of room air conditioner is now completed.
See ELECTRICAL DATA for attaching power cord to electrical outlet.
16 Room Air Conditioner