Fujitsu AIRSTAGE ARUM24TLAV Installation Manual page 6

Base horizontal direction leveling on top of the unit.
Give a slight tilt to the side to which the drain hose is connected. The tilt should be in the
range of 0 to 0.19 in. (0 to 5.0 mm).
3.3.3. Intake duct
Follow the procedure in the following fi gure to the ducts.
39-15/16 (1,015)
The air inlet duct can be changed by replacing the intake grille and fl ange. For the bottom
air intake, follow the procedure of 1  2 for installation. (The factory setting is back air
intake.)
When air is taken in from the bottom side, the operating sound of the product will easily
eater the room.
Install the product and intake grilles where the affect of the operating sound is small.
Install the product and intake grilles where the affect of the operating sound is small.
3.3.4. Outlet duct
Duct installation pattern ( CUT PART)
Round duct outlet  4 (Factory setting.)
Square duct
• When using the square duct, follow the procedure below to process outlet duct.
(1) Cut the slit seam with a cutter.
(2) Turn up the insulation around the points to be cut according to the outlet port shape
working points so that the insulation does not stick out at the
Cut
Cut
(3) Cut with nippers and remove the sheet metal.
En-5
Drain hose
Unit: in. (mm)
2
1
CAUTION
Cut
Cut
• The screw holes to install the fl ange are located behind the round cutouts in the insula-
tion.
To prevent people from touching the parts inside the unit, be sure to install grilles on
the inlet and outlet ports. The grilles must be designed in such a way that cannot be
removed without tools.
The static pressure outside the unit is as follows.
ARUM24/30/36 Model: 0.12 to 0.60 in. WG (30 to 150 Pa)
If an intake duct is installed, take care not to damage the temperature sensor (the
temperature sensor is attached to the intake port fl ange).
Install the air inlet grille for air circulation. The correct temperature can not be detected.
Be sure to install the air fi lter in the air inlet. If the air fi lter is not installed, the heat
exchanger may be clogged and its performance may decrease.
3.3.5. Fresh air intake
(Processing before use)
(1) When taking in fresh air, cut a slit shaped cabinet in the left side of the outer case
with nippers.
Cut
Cut
Cabinet (Iron plate)
When removing the cabinet (iron plate), be careful not to damage the indoor unit
internal parts and surrounding area (outer case).
When processing the cabinet (iron plate), be careful not to injure yourself with burrs,
etc.
part.
(2) Install the round fl ange (optional parts) to the fresh air intake.
(3) Connect the duct to the round fl ange.
CAUTION
Unit
Duct
(Field supply)
Outlet Grille Inlet Grille
(Field supply) (Field supply)
(Room)
Round hole
CAUTION
Round duct