En-6
4.4. Installing heat insulation
• Install the coupler heat insulation after completing the refrigerant leak check (for details,
refer to the Installation Manual for the outdoor unit).
• There should be no gaps between the insulation and the product.
Cable tie (Large) (Accessories)
Cable tie (Large) (Accessories)
No gap
No gap
Coupler heat insulation (Small)
(Accessories)
Coupler heat insulation (Large)
(Accessories)
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
15-7/8 (403)
19-13/16 (503)
20-3/4 (527)
16-13/16 (427)
7-7/8 (200)
7-7/8 (200)
1-9/16 (40)
1-9/16 (40)
Safety drain port
Ø 3/4 (19) [I.D.]
Safety drain port
Ø 3/4 (19) [I.D.]
Main drain port
Ø 1-1/16 (27) [O.D.]
Main drain port
Ø 1-1/16 (27) [O.D.]
Unit : in (mm)
Unit : in (mm)
ARUH 72
ARUH 96
O.D.
Drain pipe
• For main drain port
• For safety drain port
Φ 3/4 in (19 mm) [I.D.],
Φ 1-1/16 in (27 mm) [O.D.]
• 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.
Accessories
For main drain port
Drain hose
(Large)
Hose band
(Large)
Drain hose
insulation
For safety drain port
Drain hose
(Small)
Hose band
(Small)
Drain hose
insulation
Drain pan
Ensure there is no space
Hose band
(Accessories)
Soft PVC side
Drain hose
(Accessories)
3/8 to 9/16 in
(10 to 15 mm)
Joint pipe
(Locally purchased)
Hard PVC side
Drain pipe (Locally purchased)
Φ 3/4 in (19 mm) [I.D.], Φ 1-1/16 in (27 mm) [O.D.]
0.16 in (4 mm) or less
Applying
area of
adhesive
Wrap the Drain hose insulation around the drain hose connection.
Drain pan
Drain hose insulation
(Accessories)
Drain hose
3-15/16 in
(100 mm)
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.
Downward gradient
0.10 to 0.19 in
(2.5 to 5.0 mm)
GOOD
PROHIBITED
9365748237_IM.indb Sec1:69365748237_IM.indb Sec1:6 6/16/2015 4:24:46 PM6/16/2015 4:24:46 PM
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