9
INSTALLATION GUIDE
Ideal installation locations include:
Indoor Unit
S
A location where there are no obstacles near inlet and outlet area.
S
A location which can bear the weight of indoor unit.
S
Do not install indoor units near a direct source of heat such as
direct sunlight or a heating appliance.
S
A location which provides appropriate clearances as outlined in
Fig. 4. Be sure to leave enough distance to allow access for
routine maintenance. The installation site should be 72” or more
above the floor.
S
Select a place away from potential electronic interference.
S
Select a place where the filter can be easily removed.
Outdoor Unit
S
A location which is convenient to installation and not exposed to
strong wind.
S
A location which can bear the weight of outdoor unit and where
the outdoor unit can be mounted in a level position.
S
A location which provides appropriate clearances as outlined in
Fig. 4.
S
Do not install the indoor or outdoor units in a location with
special environmental conditions.
S
Make sure the outdoor unit is installed in accordance with the
installation instructions and is convenient for maintenance and
repair.
S
See the refrigerant piping table for the maximum height
difference between indoor and outdoor units and the maximum
length of the connecting tubing.
INDOOR UNIT INSTALLATION
INSTALL MOUNTING PLATE
1. Carefully remove the mounting plate from the unit box.
2. The mounting plate should be located horizontally and level
on the wall. All minimum spacings shown in Fig. 2.
3. If the wall is block, brick, concrete or similar material, drill
.2” (5 mm) diameter holes and insert anchors for the
appropriate mounting screws.
4. Attach the mounting plate to the wall.
DRILL HOLE IN WALL FOR INTERCONNECTING
PIPING, DRAIN AND WIRING
Refrigerant Line Routing
The refrigerant lines may be routed in any of the four directions
shown in Fig. 6.
For maximum serviceability, it is recommended to have refrigerant
line flare connections and the drain connection on the outside of
the wall that the fan coil is mounted on.
rear left.
left
rear left
right
rear right
A12585
Fig. 6
-
Refrigerant Line Routing
cut off
the hole
left
right
Fig. 7
-
Refrigerant Line Routing
If piping is going through the back:
1. Determine pipe hole position using the mounting plate as a
template. Drill pipe hole diameter per chart below. The
outside pipe hole is 1/2- in. (13 mm) min. lower than inside
pipe hole, so it slants slightly downward.
If piping is going to exit from the left rear, it is
recommended to field- fabricate piping extensions to get the
flare connections to the outside of the wall.
1/2 in. (13 mm)
Min.
INDOOR
OUTDOOR
A07371
Fig. 8
-
Drill Holes
Table 15—Hole Diameter
Model Size
Hole Diameter
in. (mm)
9K, 12K, 18K, 24K
2.2 (56)
30K & 36K
2.75 (70)
If piping is going through the right or left side:
1. Use a small saw blade to carefully remove the
corresponding plastic covering on side panel and drill the
appropriate size hole where the pipe is going through the
wall. See Fig. 14.
2. Remove knockout (see Fig. 7).
NOTE
:
If required, a condensate pump is available for the
application.
OUTDOOR UNIT INSTALLATION
1. Use a rigid base to support unit in a level position.
2. Locate outdoor unit and connect piping and wiring.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Excessive torque can break flare nut depending on
installation conditions.
Piping Connections to Outdoor Unit
IMPORTANT
:
Use refrigeration grade tubing ONLY. No other
type of tubing may be used. Use of other types of tubing will
void manufacturer’s warranty.
Make sure there is enough piping to cover the required length
between the outdoor and indoor unit.
Only use piping suitable for high side pressure for both high
side and low side connections.
