Design of 3WAY VRF SYSTEM
2 - 28
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5
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9
4-1. Outdoor Unit
AVOID:
heat sources, exhaust fans, etc.
damp, humid or uneven locations
indoors (no-ventilation location)
DO:
choose a place as cool as possible.
choose a place that is well ventilated.
allow enough room around the unit for air intake/exhaust
and possible maintenance.
use lug bolts or equal to bolt down unit, reducing vibration
and noise.
Exhaust fan
Hot air
Heat
source
Out-
door
unit
Installation Space
Install the outdoor unit where there is enough space for
ventilation. Otherwise the unit may not operate properly.
The figure shows the minimum space requirement around
the outdoor units when 3 sides are open and only 1 side is
shuttered, with open space above the unit. The mounting
base should be concrete or a similar material that allows for
adequate drainage. Make provisions for anchor bolts, platform
height, and other site-specific installation requirements.
Wall height: Less than 1.7ft. (500mm)
Over 1 ft.(300mm)
* Over 2 in. (50mm)
* Over 2 in.
(50mm)
Over 1.7ft. (500mm)
Wall height: Unlimited
Wall height: Less than 4.9 ft. (1500mm)
Over 2-3/8 in. (60mm)
Wall height:
Unlimited
Example: 2 units installation
* For other installation, follow the standards of combination
installation.
CAUTION
Leave space open above the
unit.
Construct louvers or other
openings in the wall, if
necessary, to ensure adequate
ventilation.
NOTE
Do not do any wiring or tubing within 1 ft. (0.3m) of the front
panel, because this space is needed as a servicing space
for the compressor.
Ensure a base height of 4" (10cm) or more to ensure that
drainage water does not accumulate and freeze around the
bottom of the unit.
If installing a drain pan, install the drain pan prior to
installing the outdoor unit.
* Make sure there is at least 6" (15cm) between the outdoor
unit and the ground.
Also, the direction of the tubing and electrical wiring should
be from the front of the outdoor unit.
* When setting the anchor bolt to "B" or "C" (see page 2-31),
make enough space for installation operation.
(Space between units: Over 0.6 ft. (180mm), Space from
wall: Over 0.83 ft. (250mm))
* When installing a snow-proof ducting, make space between
the units 7-3/32” (180mm) regardless of the positions (A -
C) for installation holes.
* Make a walk-in space in front and behind the unit to ensure
ease of operation.
* If any obstacle exists above the air discharge outlet,
provide a minimum space of 7 ft.(2m) between the air
discharge outlet and a nearby obstacle. Make sure there is
no obstacle around the outdoor unit on four sides and the
place is well ventilated.
01_280157_Eng.indd 18 2015-11-11 9:12:20
4. SELECTING THE INSTALLATION SITE
TD831183-00_北米向け3WAY.indb 28 15/12/17 16:05:13
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