Samsung CNH HDB Series Technical Data Book page 98

Installation
Wall Mounted Type CNH18/24ADB(AC018/024BNADCH/AA)
Choosing the installation location
Installation location requirements
• There must be no obstacles near the air inlet and
outlet.
• Install the indoor unit on a ceiling that can support its
weight.
• Maintain sufficient clearance around the indoor unit.
• Before installing the indoor unit, be sure to check
whether the chosen location is well-drained.
WARNING
• IMPORTANT: it's mandatory to consider either the table
1 or taking into consideration the local law regarding
the minimum living space of the premises.
• Minimum installation height of indoor unit is 0.6 m for
floor mounted, 1.8 m for wall, 2.2 m for ceiling.
CAUTION
Do not install the air conditioner in following places.
• The place where there is mineral oil or arsenic acid.
Resin parts flame and the accessories may drop or
water may leak. The capacity of the heat exchanger may
reduce or the air conditioner may be out of order.
• The place where corrosive gas such as sulfurous
acid gas generates from the vent pipe or air outlet.
The copper pipe or connection pipe may corrode and
refrigerant may leak.
• The place where there is a machine that generates
electromagnetic waves. The air conditioner may not
operate normally due to control system.
• The place where there is a danger of existing
combustible gas, carbon fiber or flammable dust.
• The place where thinner or gasoline is handled. Gas
may leak and it may cause fire.
• The place where animals may urinate on the product.
Ammonia may be generated.
• The place where is close to heat sources.
Overview of installation location requirements
4.92 (125)
or more
(recommended)
Outdoor
Unit
Outer wall
Indoor
Unit
Cut insulation to have
rainwater drained
Unit : inch (mm)
3.94 (100) or more
4.92 (125)
(recommended)
or more
(recommended)
Drain hose hole
You can select the direction of
draining (left or right).
Make a U-trap (A) on the
pipe (which is connected to
CAUTION
the indoor unit) at outer wall
and cut the bottom part of
the insulation (about 10 mm)
to prevent rainwater from
getting inside through the
insulation.
NOTE
• The appearance of the unit may be different from the
diagram depending on the model.
Attaching the mounting bracket to the wall
1 Hold the mounting bracket against the wall at the
selected installation position (in Step 2), making sure that
the screw holes align with the center of the studs in the
wall. If the screw locations do not align with the studs, use
wall anchors.
CAUTION
• The recommended best practice is to attach the mounting
bracket directly to the studs in the wall. If you did not find
a suitable location with studs (in Step 2), or if the wall is
concrete, you must use wall anchors of a suitable type
and weight capacity, and install them according to the
manufacturer's instructions. Failure to do so may cause
the material surrounding the joints to crumble over time
and the screws to be loosened and stripped. This may
result in the unit falling from the wall, which could cause
physical injury or equipment damage.
2 Using a level, make sure that the mounting bracket is
level, then mark the location of the screw holes on the
wall.
3 If using wall anchors, install them at the screw hole
positions, following the manufacturer's instructions.
4 Using six field-supplied mounting screws and anchors (if
applicable), attach the bracket to the wall.
Screw Location x 4ea
Drilling the wall penetration
1 Determine the position of the hole through which the
piping bundle (consisting of power and communication
cables, refrigerant pipes, and the drain hose) will pass.
Consider the following:
‐ The hole inner diameter must be 2.56 inch (65mm).
‐ The recommended hole location is behind the unit
so that the hole and the piping bundle will not
be visible in the room. The minimum distances
between the hole and the mounting bracket are:
Center of indoor unit (B)
Center of indoor unit (A)
6.50 (165)
23.96(608.5)
Possible positions for hole behind unit
Level
Unit : inch (mm)
13.66 (347)