Hitachi KPI Manuel D'installation Et De Fonctionnement page 25

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CAUTION
Before connecting the ducts, check that no sawdust or any other
foreign matter (scraps of paper, vinyl, etc.) has found its way inside
the ducts.
Do not touch the damper plate inside the main unit when
connecting the ducts.
Do not install the ducts that they show in the next figures. Doing so
will reduce the air volume and give rise to abnormal sounds.
13.5. EXAMPLE FOR INSTALLATION
The example of installation is shown in next figures:
EA (Exhaust
Air Outlet)
OA
(Outdoor
air)
Maintenance
space
INSTALLATION AND OPERATION MANUAL
SA
(Supply air
grille)
RA
(Return
air grille)
Inspection
opening
Extremely sharp bends
Bends right next to the outlet
Deep hood
(to prevent
rainwaterfrom
seeping in)
OA (Outdoor
Inspection
Air intake)
opening
EA (Exhaust
Air Outlet)
25
Multiple bends
Extreme reduction in the
diameter of the connected
ducts
Anchor bolt (to the provided
by user)
SA
RA
(Supply
(Return
Air)
Air)
Return
Supply Air
Air
Grille
Grille

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