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Multi V S Outdoor Unit
Installation of Outdoor Units
2. Select the Best Location
1. Select space for installing outdoor unit, which will meet the following conditions:
• No direct thermal radiation from other heat sources
• No possibility of annoying neighbors by noise from unit
• No exposition to strong wind
• With strength which bears weight of unit
• Note that drain flows out of unit when heating
• With space for air passage and service work shown next
• Because of the possibility of fire, do not install unit to the space where generation, inflow, stagnation, and
leakage of combustible gas is expected.
• Avoid unit installation in a place where acidic solution and spray (sulfur) are often used.
• Do not use unit under any special environment where oil, steam and sulfuric gas exist.
• It is recommended to fence round the outdoor unit in order to prevent any person or animal from accessing
the outdoor unit.
• If installation site is area of heavy snowfall, then the following directions should be observed.
– Make the foundation as high as possible.
– Fit a snow protection hood.
2. Select installation location considering following conditions to avoid bad condition when additionally performing
defrost operation.
• Install the outdoor unit at a place well ventilated and having a lot of sunshine in case of installing the product
at a place with a high humidity in winter (near beach, coast, lake, etc).
(Ex) Rooftop where sunshine always shines.
• Performance of heating will be reduced and pre-heat time of the indoor unit may be lengthened in case of
installing the outdoor unit in winter at following location:
– Shade position with a narrow space
– Location with much moisture in neighboring floor.
– Location with much humidity around.
– Location where ventilation is good.
It is recommended to install the outdoor unit at a place with a lot of sunshine as possible as.
– Location where water gathers since the floor is not even.
3. When installing the outdoor unit in a place that is constantly exposed to a strong wind like a coast or on a high
story of a building, secure a normal fan operation by using a duct or a wind shield.
• Install the unit so that its discharge port faces to the wall of the building.
Keep a distance 500mm or more between the unit and the wall surface.
• Supposing the wind direction during the operation season of the air conditioner, install the unit so that the
discharge port is set at right angle to the wind direction.
Air inlet grille
500 mm
Strong
wind
Strong
wind
Blown air
※ Outdoor unit is representative. Actual appearance of outdoor unit may be
different but clearances will stay the same.
Set the outlet side at a right angle
to the direction of the wind.
Turn the air outlet side toward the building's
wall, fence or windbreak screen.
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