19
INSTALLATION OF INDOOR UNITS (Cont.)
12-2 INSTALLATION STEPS OF INDOOR UNIT
STEP (1): Selecting Wall Hole Location Back Piping
In case of passing refrigerant piping lines, electrical cables
and condensate drain line behind the unit, drill a hole of 8 cm
behind the unit in one of the following locations as per
sequence:
Location (A): behind unit right.
Location (B): behind unit Left.
Side or bottom piping
In case of passing refrigerant piping lines, electrical cables
and condensate drain line from unit right side or from unit
bottom, detach the knockout in either the side or bottom of the
unit.
Step (2): Making Wall Hole Precautions:
Before making a hole, check carefully that :
- 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 80 mm to pass the refrigerant lines, drain
hose and electrical cables.
The wall hole can be made as required in either location
(A) or (B).
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
it.
Step (5) : Installing the wall hang bracket
•
Allow the clearance space around the unit, which permits
adequate air circulation, easy access to the unit for easy
service and maintenance.
•
Fix wall hang bracket on the wall so that it is leveled
vertically and horizontally by using the five self-tapping
screws supplied with the unit in the plastic page 2 (Two)
screws to fix bracket top. 1 (One) screws to fix bracket
mid, 2 (Two) screws to fix bracket bottom, Use a plumb
line if necessary to adjust leveling of the wall hang.
Wall Hole Locations
5-10 mm
Wall
Wall
Indoor
side
Outdoor
side
Cut Wall Sleeve
Indoor
side
Outdoor
Side
Wall
Sleeve
Space Around Unit Indoor Unit
Summary of Contents for 42QG18-C
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