Phau Ntawv Qhia
En-5
[Unit: in (mm)]
20-7/8 (530) (Hanging bolt position)
service access
2-15/16 (75)
5-7/8 to 7-7/8
(150 to 200)
21-1/4 (540) (Hanging bolt position)
22-7/16
(570) (Indoor unit)
22-13/16 to 24 (580 to 610)
(Ceiling openings)
24-7/16 (620) (Cassette Grille)
Min.17-11/16 (450)
Min.17-11/16 (450)
5-5/16 (135)
9-13/16 (250)
[Unit: in (mm)]
4
(102)
1-3/16 (30)
Drain pipe (O.D.ø1 (26.1))
Ceiling
Control box
Liquid pipe Gas pipe
1-9/16
(40)
3-7/8
(99)
2-5/16 (58)
4-13/16 (123)
1-3/16
(30)
10-5/16 (262)
4-1/2 (114)
8-7/16 (215)
Be sure to keep sufficient space in the designated position for future maintenance.
3.3.2. Body installation
(1) Install special nut A, then special nut B onto the hanging bolt.
(2) Raise the body and mount its hooks onto the hanging bolt between the special nuts.
(3)Turn special nut B to adjust the height of the body.
WARNING
• Perform final tightening by tightening the double nut firmly.
• Be sure to install the body horizontally and adjust the height below the body and the
ceiling surface properly.
[Unit: in (mm)]
Special nut A
(accessories)
After installing the
body, tighten the nuts.
Hook
Ceiling
1-3/16 (30)
or more
Special nut B
(accessories)
Hanging bolt
3/4
(19)
3.3.3. Leveling
Using a level, or vinyl hose filled with water, fine adjust so that the body is level.
Inclined installation so as the drain pipe side is higher may cause a malfunction of the float
switch, and may cause water leakage.
Vinyl hoses
Drain pipe
3.4. Drain installation
WARNING
• Do not insert the drain piping into the sewer where sulfurous gas occurs. (Heat ex-
change erosion may occur)
• Insulate the parts properly so that water will not drip from the connection parts.
• Check for proper drainage after installation by using the visible portion of transparent
drain port and the drain piping final outlet on the body.
CAUTION
Do not apply adhesive agent on the drain port of the body. (Use the attached drain hose
assembly to connect the drain piping)
3.4.1. Installing the drain pipe
■
When not lifting up drain pipe:
• Install the drain pipe with downward gradient (1/50 to 1/100) and so there are no rises or
traps in the pipe.
• 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.
• When the pipe is long, install supporters.
• Do not perform air bleeding.
• Always heat insulate indoor section of drain pipe.
• If it is impossible to have sufficient gradient of pipe, perform drain lift-up.
Pipe size
Drain pipe Ø 3/4 in [I.D.]; Ø 1-1/16 in [O.D.]
Hanging fittings
60 to 78 in (1.5 to 2.0 m)
Ø 3/4 in [I.D.]; Ø 1-1/16 in [O.D.]
Downward gradient 1/100 to 1/50
Rise
PROHIBITED:
Trap
Air bleeding
■
When lifting up drain pipe:
• Height of inclined pipe should be less than
27 in (700 mm)
from the ceiling. A rise
dimension over this range will cause leakage.
• Lift up the pipe vertically at the position of
11-13/16 in (300 mm)
or less from the
unit.
[Unit: in (mm)]
11-13/16 (300) or less
Ø 3/4 in [I.D.];
Ø 1-1/16 in [O.D.]
local arrangement
27-9-16 (700) or less
Horizontal or
upward gradient
Downward gradient
1/100 to 1/50
Ø 1 in [I.D.]; Ø 1-5/16 in [O.D.] or more
Downward gradient 1/100 to 1/50
27 (700)
or less
3.4.2. Installation procedure
1) Install the attached drain hose to the drain port of the body. Install the hose band from
the top of the hose within the shown in the figure area.
2) Use vinyl adhesive agent to glue the drain piping (PVC pipe Ø 3/4 in [I.D.]; Ø 1-1/16 in
[O.D.]) to the drain hose assembly.
(Apply color adhesive agent evenly until the gauge line and seal)
3) Check the drainage. (Refer to separate diagram)
4) Install the heat insulation.