Use and Care Manual
mrcool.com
Indoor Unit Installation
Refer to Fig. 4.2 to ensure proper distance from walls, ceiling, and floor when mounting unit:
NOTE FOR CONCRETE OR BRICK WALLS: 
If the wall is made of brick, concrete, or a similar 
material, drill 0.2 in (5 mm) diameter holes in the 
wall and insert the sleeve anchors provided. 
Secure the mounting plate to the wall by 
tightening the screws directly into the anchors. 
1.
2.
3.
 CAUTION
When drilling the wall hole, be sure to 
avoid wires, plumbing, nails, screws, and 
other sensitive components. 
Minimum Ceiling 
Clearance
5.9 in (15 cm)
Minimum Side 
Clearance
4.75 in (12 cm)
Minimum Side 
Clearance
4.75 in (12 cm)
*For Ceilings GREATER than 9 ft., 
recommended distance from floor
90.55 in (230 cm)
*For Ceilings LESS than 9 ft., 
recommended distance from floor
78.55 in (200 cm)
Step 3: Drill Wall Hole for Connective Piping
You must drill a hole in the wall for the refrigerant 
piping, drainage pipe, and signal cable to pass through 
in order to connect the indoor and outdoor units.
Determine the location of the wall hole based on 
the position of the mounting plate. Refer to the 
Mounting Plate Dimensions (See Fig 5.5) to 
assist you in determining the optimal position for 
the hole, based on the type of mounting plate 
provided with your unit.
Using a core drill, with a 3.54 in (90 mm) 
diameter, drill a hole in the wall at a slight 
downward angle, so that the indoor end of the 
hole is higher than the outdoor end of the hole, 
by approximately 0.2 in to 0.275 in (5 mm to 7 
mm). This will ensure proper water drainage from 
the indoor unit (See Fig. 5.3). 
Insert the protective wall sleeve through the 
hole of the inside wall, noting the amount it 
protrudes from the exterior wall. Then, trim the 
excess, with a utility knife or a saw, to make it 
flush with the exterior wall. This will protect the 
edges of the hole and help seal it when you 
finish the installation process (See Fig 5.4).
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NOTE 
A cardboard template of the mounting plate is 
included to be used as a more manageable way of 
determining where to mount the mounting plate 
and drill the wall hole. It can be placed against the 
wall in place of the actual mounting plate for the 
previous step (See Fig 5.1).
Fig. 5.1
Step 2: Attach Mounting Plate to Wall
You must drill a hole in the wall for the refrigerant 
piping, drainage pipe, and signal cable to pass 
through in order to connect the indoor and outdoor 
units.
1. Remove the screw that attaches the mounting
 plate to the back of the indoor unit. 
2. Place the mounting plate against the wall in a
 location that meets the guidelines in the
 Selecting an Installation Location step. Refer
 to the Mounting Plate Dimensions section for
 detailed information on mounting plate sizes. 
3. Drill holes for wall plate mounting screws in places
 that have the following:
 • studs that can support the weight of the unit.
 • correspond to the holes in the mounting plate.
4. Secure the mounting plate to the wall with the
 supplied screws.
5. Make sure that the mounting plate is flat against 
 the wall. 
Fig. 5.2










