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1
1-11-4
(D) When outdoor units are stacked
Only two outdoor units can be stacked.
For drain treatment, a space of at least 400 mm is required between the upper and lower outdoor units.
Close the area A (gap between the upper outdoor unit and lower outdoor unit) so that the outlet air does not bypass there.
(1) Obstruction on the air outlet side
(2) Obstruction on the air inlet side
a
b
Area A
a
500 mm or more
b 400 mm
a
b
Area A
a
200 mm or more
b 400 mm
(E) When outdoor units are installed in rows, such as on a rooftop (L
<
H)
(1) One outdoor unit installed in each row
a
b
c
d
H
L
a
500 mm or more
b 300 mm or more
c 1,000 mm or more
d 50 mm or more
(2) Two or more units installed side by side.
a
b
c
A
L
H
d
e
a
1,000 mm or more
b 400 mm or more
c 2,000 mm or more
d 250 mm or more
e
250 mm or more
The dimensional relationship between H, A, and L is as shown
in the following table.
Unit: mm
A
L
≤
H
150
H
<
L
Installation is not allowed.
The values described above are the least space to optimize
application performance.
If any service area is needed for service according to field
circumstance, obtain enough service space.
In case of multiple installations
●
Concrete block foundation should be used and well drained.
Be sure that the foundation height is kept at least more than
50 mm from the ground.
●
Base leg should be fixed by inserting the flat washer (field
supply) and single nut (field supply) onto the anchor bolt
(M8, field supply). Protrusion length of anchor bolt should be
13 mm or less and fastening height of nut should be 12 mm
or less.
Note:
If the anchor bolt is longer and the fastening height of
n
ut is higher, the front panel may be damaged when
i
nstalling or removing it.
●
Use lug bolts or equal to bolt down unit, reducing vibration
and noise.
Air intake
Air intake
Min. 150 mm
Anchor bolts
(4 pieces)
Air discharge
13 mm or less
(Protrusion length of anchor bolt)
12 mm or less
(Fastening height of nut)
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2018/3/20 9:14:56
Air-Discharge Chamber for Top Discharge
it is difficult to keep a space of min. 50 cm between the air
discharge outlet and an obstacle.
the air discharge outlet is facing a sidewalk and discharged
hot air annoys passers-by.
Air discharge
provided with a platform and snow-proof duct.
Installing the Unit in Heavy Snow Areas
In locations with strong wind, snow-proof ducting should likewise
much as possible.
Countermeasures against snow and wind
In regions with snow and strong wind, the following problems
may occur when the outdoor unit is not provided with a platform
and snow-proof ducting:
Without snow-
proof ducting
(Low platform)
With snow-proof
ducting
(High platform)
a) The outdoor fan may not run and damage of the unit may be
caused.
b) There may be no airflow.
c) The tubing may freeze and burst.
d) The condenser pressure may drop because of strong wind,
and the indoor unit may freeze.
s
a
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r
A
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S
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e
H
n
i
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i
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a
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P
(1) The platform should be higher than the maximum snow
depth +50 cm.
(2) The 2 anchoring feet of the outdoor unit should be used for
the platform, and the platform should be installed beneath
the air intake side of outdoor unit.
(3) The platform foundation must be firm and the unit must be
secured with anchor bolts.
(4) Be sure to install the outdoor unit so that snowfall or icicle
from the roof will not affect the unit.
(5) In case of installation on a roof subject to strong wind,
countermeasures must be taken to prevent the unit from
being blown over.
Dimensions of Snow / Wind-proof Ducting and
Refrigerant Tubing Space for Installation
Min. 100
Min. 100 146
146
Unit: mm
Duct
Outdoor Unit
Air Intake
Platform (foundation)
Higher than the maximum
snow depth + 50 cm
About 1/2 of the unit height
Duct
Refer to the diagrams below for the installation
location which is exposed to strong wind.
If a strong wind of more than 5m/sec blows to the area directly
outcome:
“Reduced capacity”, “Increased frost formation during heating”
or “Operation stopped due to increased pressure”.
Should an exceptionally strong wind blow to the area directly
in front of the discharge of the outdoor unit, there is a risk of
damage due to the fan's high-speed reverse rotation.
Wall / outer wall
Place unit at right
angle to wind's
direction.
Place unit at appropriate
angle to wind's direction
so that discharge faces
towards building or wall.
When installing unit in a place
where it will be affected by
typhoon or strong wind such as
wind blowing between buildings,
including rooftop of building and
a place where there is no building
overturn prevention wire, etc.
Strong wind
Strong wind
Air intake side
Air intake
Air discharge
Keep space for installation
and maintenance service
Wall / outer wall
• When installing the unit in a place where it will be affected by
typhoon or strong wind, provide a windbreak plate (optional).
• When installing the unit in a place where there is no obstacles
in surroundings, provide a wind direction guide (optional).
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SM830266-00_大洋州向けR32シングルTD&SM.indb 4
18/03/29 10:20:05
Содержание Inverter R32 Series
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