3
3. Installation diagram
2.1. Outdoor unit
• Where it is not overly exposed to strong winds.
• Where airflow is good and dustless.
• Where neighbors are not annoyed by operation sound or hot air.
• Where rigid wall or support is available to prevent the increase of operation sound
or vibration.
• Where there is no risk of combustible gas leakage.
• If installing the unit in a location high above the ground, be sure to secure the unit
legs.
• Where it is at least 10 ft. (3 m) away from the antenna of TV set or radio. Opera
-
tion of the air conditioner may interfere with radio or TV reception in areas where
reception is weak. An amplifier may be required for the affected device.
• Install the unit horizontally.
• Please install it in an area not affected by snowfall or blowing snow. In areas with
heavy snow, please install a canopy, a pedestal and/or baffle boards.
Note:
• It is advisable to make a piping loop near outdoor unit so as to reduce vibration.
• For increased efficiency, install the outdoor unit in a location where continuous
direct sunlight or excessive water can be avoided as much as possible.
Caution:
When operating the air conditioner in low outside temperature, be sure to follow the
instructions described below.
• Never install the outdoor unit in a place where its air inlet/outlet side may be ex
-
posed directly to wind.
• To prevent exposure to wind, install the outdoor unit with its air inlet side facing the
wall and a baffle board on the air outlet side.
Avoid the following places for installation where air conditioner trouble is liable to
occur.
• Where flammable gas could leak.
• Where there is an excessive amount of machine oil in the air.
• Salty places such as the seaside.
• Where sulfide gas is generated such as a hot spring.
• Where there is high-frequency or wireless equipment.
The outdoor unit produces condensate during the heating operation. Select the in-
stallation place to ensure to prevent the outdoor unit and/or the grounds from being
wet by drain water or damaged by frozen drain water.
2. Selecting the installation location
When the piping is to be attached to a wall containing metals (tin plated) or metal netting, use a chemically treated wooden piece 25/32 in. (20 mm) or thicker between the wall
and the piping or wrap 7 to 8 turns of insulation vinyl tape around the piping.
Units should be installed by licensed contractor accordingly to local code requirement.
Note:
When operating the air conditioner in low outside temperature, be sure to follow the instructions described below.
• Never install the outdoor unit in a place where its air inlet/outlet side may be exposed directly to wind.
• To prevent exposure to wind, install the outdoor unit with its air inlet side facing the wall.
• To prevent exposure to wind, it is recommended to install a baffle board on the air outlet side of the outdoor unit.
Drain piping for outdoor unit
Install the unit horizontally.
Do not use drain socket in cold regions. Drain may freeze and make the fan stop.
The outdoor unit produces condensate during the heating operation. Select the installation place to ensure to prevent the outdoor unit and/or the grounds from being wet
by drain water or damaged by frozen drain water.
Basically open 4 in.
(100 mm) or more without
any obstruction in front and
on both sides of the unit.
Open 2 sides of left,
right, or rear side.
8 in.
(200 mm)
or more
4 in.
(100 mm)
or more
14 in.
(350 mm)
or more
4 in.
(100 mm)
or more
31-1/2
19-11/16
13-9/16
11-1/4
12-12-3/4
1-9/16
800
500
285
150
40
304-325
5-
15/16
Unit: inch
Air outlet
Air outlet
Air inlet
Air inlet
2-3/8 × 13/16 slot
Unit: mm
344.5
2-10 × 21 slot
NTXSKS09A112A
✱
NTXSKS12A112A
✱
NTXSKS15A112A
✱
BH79A499H01_EN.indd 3
2018/09/04 16:49:03
