Installation Dimensions - Fujitsu Airstage AJ 072GALBH Series Installation Manual

3.3. Installation dimensions

When installing the outdoor unit, pay attention to the following items.
Provide sufficient installation space, such as transportation route, maintenance space,
ventilation space, refrigerant piping space, and passageways.
Pay attention to the specifications of the installation space as shown in the figure. If
the unit is not installed according to specifications, it may cause short circuit or poor
performance. The unit may be prone to lapse into non-operation due to high pressure
protection.
Do not place obstructions in the air flow outlet direction. If there is an obstruction in the
outlet direction, install an outlet duct.
When there is a wall in front of the unit, provide a space of 500 mm or more as mainte-
nance space.
When there is a wall at the left side of the unit, provide a space of 30 mm or more as
maintenance space.
An outdoor temperature of 35 degrees in air-conditioned operation is assumed for the
installation space in this item. If the outdoor temperature exceeds 35 degrees and
the outdoor unit is operating at a load exceeding its rated ability, provide a larger inlet
space.
If you are installing more outdoor units than indicated here, please ensure sufficient
space or consult your distributing agent as it may affect the performance due to short
circuit and other problems.
3.3.1 When install nearby limited height wall
(1) Single and multiple installations
• There are no restrictions on the height of the side wall.
• Provide installation spaces L1 and L2 in accordance with the table below according to the
wall height (front side, rear side) conditions.
• Provide installation spaces other than L1 and L2 in accordance with the conditions
shown in the figure below.
• Ventilation resistance can be ignorable when the distance from a wall or product, etc. is
larger than 2 m.
Wall height condition Necessary instal-
[mm] lation space [mm]
When H1 is 1500 or less L1 ≥ 500
When H1 is 1500 or more L1 ≥ 500+h1÷2
When H2 is 500 or less L2 ≥ 100
When H2 is 500 or more L2 ≥ 100+h2÷2
Fig. 2 Single installation Fig. 3 Multiple installations
<Top view>
<Rear>
<Rear>
<Front>
<Front>
30 mm or 10 mm
more or more
(2) Concentrated installation
• Provide installation spaces L3,
L4, and L5 in accordance with
Wall height condition [mm]
the table below according to
the wall height (front side, rear
When H3 is 1500 or less
side) conditions.
• Provide installation spaces When H3 is 1500 or more
other than L3, L4, and L5 in
When H4 is 500 or less
accordance with the conditions
shown in the figure below.
When H4 is 500 or more
• Ventilation resistance can be
ignorable when the distance When H5 is 500 or less
from a wall or product, etc. is
When H5 is 500 or more
larger than 2 m.
Fig. 4
<Side view>
<Front> <Rear>
Wall Wall
CAUTION
Fig. 1
<Side view>
<Front>
Wall
<Top view>
20 mm
30 mm 20 mm
or more or more or more
Necessary installa-
tion space [mm]
L3 ≥ 500
L3 ≥ 500 + h3 ÷ 2
L4 ≥ 200
L4 ≥ 200 + h4 ÷ 2
L5 ≥ 200
L5 ≥ 200 + h5 ÷ 2
Fig. 5
<Front view>
Wall
Fig. 6
L5
Fig. 7
<Rear>
L5
3.3.2 When install near unlimited height wall
(1) Single and multiple installations
• There are no restrictions on the height of the wall.
• The wall (without height restrictions) must not exist on the both sides (left / right) of
outdoor unit. Also, must not exist on the both sides (front / rear) of outdoor unit.
• Provide installation spaces other than L6 in accordance with the conditions shown in the
figure below.
Wall • Ventilation resistance can be ignorable when the distance from a wall or product, etc. is
larger than 2 m.
When installing with the
rear of the outdoor unit
facing the wall side
Fig. 8 Single installation
10 mm
or more
Fig. 9 Multiple installations
<Rear>
<Front>
200 mm
or more
200 mm
or more
Wall
<Top view>
20 mm 20 mm L5
or more or more
<Top view>
20 mm 20 mm
L5
or more or more
Necessary installation
Condition
When B ≥ 400 (mm) L6 ≥ 200 (mm)
L6 ≥ 200 + (400 - B) × 3
When 20 ≤ B < 400 (mm)
(mm)
<Top view>
100 mm
<Rear>
or more
<Front>
200 mm
or more
<Top view>
B B
800 mm
or more
200 mm 200 mm
Example:
When B is made 200 mm
L6 ≥ 200 + (400 - 200) × 3 = 800 mm
L4
800 mm
or more
800 mm
or more
L3
L4
500 mm
or more
1000 mm
or more
L3
space
L6
En-4