Slim Ducted Installation Manual

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2. Before drilling the holes in the ceiling and mounting the unit, align the refrigerant pipes, drain pipe,
and electric cable connection points with the direction they will be drawn out and connected to
the outdoor unit through the wall hole (see Step 3: Drill Wall Hole For Connective Piping).
3. Drill four holes 4" deep in the internal ceiling for each of the required suspension bolt anchors (field
supplied). Make sure to hold the drill at a 90 angle to the ceiling.
4. Using a hammer, insert the suspension bolt anchors into the pre-drilled holes.
5. Install the four suspension bolts.
6. Mount the indoor unit. Using two people to lift and secure it, insert the suspension bolts into the
unit's hanging bracket holes and secure in place with washers and nuts (see diagram below).
Make sure the unit is level.
WARNING
Ensure that the indoor unit is completely level. Improper installation can cause the
drain pipe to back up into the unit and water leaks.
STEP 3: DRILL WALL HOLE FOR CONNECTIVE PIPING
1. Determine the location of the wall hole based on the location of the outdoor unit.
2. Using a 2 1/2" (65mm) core drill for units with a gas side connective pipe less than 5/8" (16mm), or
3 1/2" (90mm) for units with a gas side pipe greater than or equal to 5/8" (16mm), drill a hole in the
wall. Make sure that the hole is drilled at a slight downward angle, so that the outdoor end of the
hole is lower than the indoor end by about 3/16 - 1/4" (5mm to 7mm). This will ensure proper water
drainage.
Nuts
Washer
Hanging bolt
Mounting bracket
Shock-proof cushion
Wall
Indoor Outdoor
3/16-1/4”
(5-7 mm)
3. Place the protective wall hole sleeve (field supplied) into the hole. This protects pipes and cables
from sharp edges and will help seal the opening when you finish the installation process. After the
sleeve is inserted through the wall, connect the wall hole sleeve cover to the wall sleeve on the
outside end. Make sure the cover is flush with the outside wall.