Drain Installation - Fujitsu ARU30RGLX Installation Manual

• Make sure the drain water is properly drained.
• 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.
• Set the appropriate external static pressure within the permissible range. (Refer to
"6. FUNCTION SETTING")
• 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).
• Be sure to Install the air inlet grille and air outlet grille for air circulation. The correct
temperature cannot be detected.
Air Outlet Grille
(Field supply)
(Room)
• When connecting the duct, perform duct-insulation appropriate for the installing envi-
ronment.
Inappropriate insulation work may cause condensation on the surface of the insulat-
ing material, and may lead to condensation dripping.

3. 5. Drain installation

• Install the drain hose in accordance with the instructions in this installation manual
and keep the area warm enough to prevent condensation. Problems with the piping
may lead to water leaks.
• Be sure to properly insulate the drain hose so that the water will not drip from the
connected parts.
• The position of the installed drain hose should have a downward gradient of 1/100 or
more.
• Do not connect the drain hose in which ammonia or other types of gas affecting the
unit is generated. Heat exchange erosion may occur.
Install the drain hose according to the measurements given in the following fi gure.
(Right side)
11 (280)
1-9/16 (40)
Drain pipe
O.D. Ø1-1/4 (32)
11-13/16 (300)
5-1/16 (128)
3. 5. 1. Installing the drain hose
(1) Install the drain hose (accessory) to the drain port of the indoor unit. Attach the hose
band around the hose within the dimension shown. Secure fi rmly with the hose band.
(2) Attach the drain pipe (locally purchased). Use general hard polyvinyl chloride pipe
[outside diameter 1-1/16 in (26.6 mm)] and connect it with adhesive (polyvinyl chloride)
so that there is no leakage.
(3) Check the drainage.
(4) Wrap the drain hose insulation around the drain hose connection.
Hose band (Accessory)
9/16 (15)
Soft PVC side
3/16~3/8
(5~10)
13/16 (20) Drain hose
En-6
CAUTION
Unit
Duct
(Field supply)
Air Inlet Grille
(Field supply)
CAUTION
Drain pipe
O.D. Ø1-1/4 (32)
Area to
Joint pipe
apply
(Locally purchased)
adhesive
Drain pipe [O.D. 1-1/16 (26.6)]
(Locally purchased)
3/16 (4) or less
(Accessory)
Indoor unit
■ When drain pump is used
Unit: in (mm)
Observe the following procedures to construct centralized drain pipe
fi ttings.
28 in (700 mm) or less
■ When drain pump is not used (Natural drainage)
If the drain pump is not used, please move the position of the drain cap and insulation.
Unit: in (mm)
NOTE:
• Install the drain pipe with downward gradient (1/50 to 1/100) and so there are no rises or
traps in the pipe.
Hose band (Accessory)
Drain hose insulation
(Accessory)
Drain hose
3-15/16 in
(100 mm)
Overlap the heat insulation.
Gap of 60 to 79 (1,500 to 2,000)
Locally arranged pipe
GOOD
Max.
12 (300)
Horizontal or
upward gradient
Air bleeding
PROHIBITED
O.D 1-1/2 in (38 mm) or more
Downward gradient 1/100 or more
Drain hose insulation
(Accessory)
Unit: in (mm)
Supporter
O.D 1-1/16 (26.6)
or more
27 (700) or less
Rise
Trap