When Drain Pump Is Used; When Drain Pump Is Not Used (Natural Drainage) - Fujitsu Airstage ARUL7TLAV2 Installation Manual

5.1. When drain pump is used

• Use general hard polyvinyl chloride pipe ø 3/4 in (19 mm) [I.D.], ø 1-1/16 in (27 mm)
[O.D.] .
• Do not perform a rise, trap and air bleeding.
• Provide a downward gradient (1/100 or more).
• Provide supporters when long pipes are installed.
• Use an insulation material as needed, to prevent the pipes from freezing.
• Install the pipes in a way that allows for the removal of the control box.
GOOD
Locally arranged pipe
11 in (300 mm)
PROHIBITED
• Observe the following procedures to construct centralized drain pipe fittings.
[O.D. 1-5/16 in (33 mm)] or more
27 in (700 mm)
or less

5.2. When drain pump is not used (natural drainage)

Set "7.4. Switching of drainage function"
Drain pump cannot be used if it is installed in wall mounted type/floor standing con-
cealed type.
If the drain pump is not used, please replace with the drain cap.
Ceiling concealed type
• Use general hard polyvinyl chloride pipe ø 3/4 in (19 mm) [I.D.], ø 1-1/16 in (27 mm)
[O.D.] .
• Do not perform a rise, trap and air bleeding.
• Provide a downward gradient (1/100 or more).
• Provide supporters when long pipes are installed.
• Use an insulation material as needed, to prevent the pipes from freezing.
• Install the pipes in a way that allows for the removal of the control box.
Gap of 60 to 78 in (1.5 to 2 m)
Supporter
[O.D. 1-1/16
or less
in (27 mm)]
or more
27 in
(700 mm)
or less
Horizontal or
upward gradient
Air bleeding Rise
Trap
Downward gradient 1/100 or more
CAUTION
Wall mounted type /
floor standing concealed type
(1) Ceiling concealed type
GOOD
4 in (100 mm) or more
Locally arranged pipe
PROHIBITED
• Observe the following procedures to construct centralized drain pipe fittings.
[O.D. 1-5/16 in
(33 mm)] or more
(2) Wall mounted type/floor standing concealed type
GOOD
Locally arranged pipe
PROHIBITED
• Observe the following procedures to construct centralized drain pipe fittings.
[O.D. 1-5/16 in
(33 mm)] or more
Gap of 60 to 78 in
(1.5 to 2 m)
Downward gradient
0.10 to 0.19 in
(2.5 to 5.0 mm)
Supporter
[O.D. 1-1/16 in
(27 mm)] or more
Trap
Rise
Air bleeding
Downward gradient
1/100 or more
Downward gradient 0.10 to
0.19 in (2.5 to 5.0 mm)
4 in
[O.D. 1-1/16 in
(100 mm)
(27 mm)] or more
or more
Air bleeding
Trap
Rise
Downward gradient 1/100
or more
En-8