Installing Drain Pipes - Fujitsu GENERAL AIRSTAGE AAUA48TLAV Installation Manual

5. INSTALLING DRAIN PIPES

• Use general hard polyvinyl chloride pipe ø 3/4 in [I.D.], ø 1-1/16 in [O.D.] and connect it
with adhesive (polyvinyl chloride) so that there is no leakage.
• The position of the installed drain pipe should have a downward gradient of 1/100 or
more.
• To prevent the pipe from freezing, use a heat insulation material as needed.
Position of drain piping
Safety drain port
Drain pipe
• For main drain port
• For safety drain port
• This product has drain ports in 2 locations. Follow the procedure in the fi gure to connect
drain hose and drain pipes to each of them.
Install the drain hose to the main and safety drain port
Working procedure
(1) Install the attached drain hose to the main and safety drain port of the body. Install
the hose band from the top of the hose within the graphic display area. Secure fi rmly
with the hose band.
(2) Use vinyl adhesive agent to glue the drain piping (PVC pipe) [Φ 3/4 in (19 mm) I.D.
Φ 1-1/16 in (27 mm) O.D.] which is prepared on site or piping socket. (Apply color
adhesive agent evenly until the gauge line and seal)
(3) Check the drainage.
(4) Install the heat insulation.
(5) Use the attached heat insulation to insulate the drain port and band parts of the body.
Drain pan
3/8 to 9/16
(10 to 15)
Applying
area of
Hard PVC side
adhesive
0.16 (4) or less
Wrap the Drain hose insulation around the drain hose connection.
Drain pan
En-7
1-1/8 (28)
Main drain port
5-3/4(146)
Pipe size
Φ 3/4 in (19 mm) [I.D.],
Φ 1-1/16 in (27 mm) [O.D.]
Unit: in (mm)
Ensure there is no space
Hose Band
(accessories)
Soft PVC side
Drain hose
(accessories)
Joint pipe
(locally purchased)
Drain pipe (locally purchased)
Φ 3/4 (19) [I.D.], Φ 1-1/16 (27) [O.D.]
Unit: in (mm)
Drain hose insulation
(accessories)
Drain hose
3-15/16
(100)
Hose opening view
Wind the attached heat insulation
around the hose band. Make sure
the alignment is on top.
After installing the Drain hose, check if the drainage is smooth.
GOOD
Install the drain pipe
1 Main drain
On the main drain, provide 1 trap near the indoor unit.
Unit
Trap
2 Safety drain
There is no need to provide a trap for the safety drain. If the safety drain is connected
to the main drain, make the connection below the main trap
Unit
Drain pipe (Safety)
• Make sure that drain pipe is installed without rises.
• Do not perform air bleeding.
Be sure to properly insulate the drain pipes.
Make sure the drain water is properly drained.
Downward gradient
0.10 to 0.19 in
(2.5 to 5.0 mm)
PROHIBITED
H1= 3-15/16 in (100 mm) (Approx.)
H2= 1-15/16 to 3-15/16 in (50 to 100 mm)
Drain pipe (Main)
.
Drain pipe (Main)
PROHIBITED
Rise
Air bleeding
Rise
CAUTION