Hitachi FSG1 Series Technical Catalogue page 259

Consideration to Seasonal Wind
Avoid the installation that the air intake side (Rear) of the
unit is faced directly against a seasonal strong wind.
Correct
Air Intake Side
(Rear)
In case of 5 ~ 10HP
In case of 16 ~ 20HP
In case of 24 ~ 30HP
Consideration to Snow
Apply an air discharge hood, an air intake hood and a
higher foundation to prevent accumulation of snow on the
air outlet and air inlet.
Correct
Air Discharge Hood
Seasonal
Wind
Air Intake
Hood *
*(Field-Supplied)
?
NOTE:
Install the unit on a sunny place such as east or south
side of the building rather than north side.
Seasonal Wind
Incorrect
Seasonal Wind
Foundation Height with
a consideration to a
snowfall
Correct
Windbreak Fence
Air Intake Side
(Rear)
Air Intake Side
(Rear)
Incorrect
Air Intake Side (Rear)
(In this case, defrosting time extends)
Prevention of Short-circuiting
For prevention of short-circuiting between suction air and
discharge air, apply a field-supplied air discharge hood
600~900 mm
UNITS INSTALLATION
Seasonal Wind
Seasonal Wind
Air Discharge Hood
(Field-Supplied)
Max.500 mm
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