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INDOOR UNIT INSTALLATION (Cont.)
PREPARATION STEPS BEFORE INSTALLATION (Cont.)
Step (2): Making Wall Hole Precautions:
Before making a hole, check carefully the following points :
• The wall is flat and perpendicular.
• If the wall is not flat and perpendicular, the indoor unit can
be unstable and condensate drain can spill.
• No studs or pipes are directly run behind the spot to be cut.
• No electrical wiring or conduits are located.
• Drill a hole of 65 mm to pass the refrigerant lines, drain hose
and electrical cables.
The wall hole can be made as required in either location (1)
or (2).
When making wall hole, make sure to drill outwards at a
downward angle, so that the height difference between the
entrance and exit of the hole is at least 5-10 mm.
Step (3): Cutting Sleeve For Wall Hole
• Measure the thickness of the wall from the inside edge to
the outside edge and cut PVC pipe at a slight angle 6mm
shorter than the thickness of the wall.
Step (4): Mounting Sleeve Into Wall Hole
• After making hole, a sleeve must be mounted into wall
hole and its width to be equal to wall thickness to pass
refrigerant lines, drain hose and electrical cables
through the wall hole.
Wall
5-10 mm
Wall
Indoor
side
Outdoor
side
Cut Wall Sleeve
Indoor
side
Outdoor
Side
Wall
Sleeve
Wall
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