Fisher FSKIF-121AE2-EU Service Manual page 96

Indoor unit installation
3.2.4 Install the main body
Make the 4 suspender through the 4 hanger of the main body to suspend it. Adjust the hexangular nuts on
the four installation hooks evenly, to ensure the balance of the body. Use a leveling instrument to make sure
the levelness of the main body is within ±1°.
3.2.5 Install the air filter
Insert the air filter through the filter slot and fix it with 2 screws.
3.2.6 Install the air duct
Please design the air duct as below recommended picture
92 Installation