En-15
8.2. Install the drain pipe
(1) Be sure to use supplied Drain hose
1
and Hose band
2
2
Hose band
Drain
hole
1
Drain hose
Hard PVC side
• When drain pump is used. (Ceiling concealed type only)
Hose band
4 mm (5/32 in.) or less
20 mm (25/32 in.)
• When drain pump is not used. (Natural drainage)
Joint pipe
(Field supply)
Drain pipe [3/4 in. (O.D.1-1/16 in.)]
(Field supply)
Applying
area of
adhesive
4 mm (5/32 in.) or less
CAUTION
When drain pump is not used, do not connect the accessory
drain hose and soft PVC hose directly.
(2) Be sure to insert Drain hose
1
to the very end of the Drain
pan of the unit with no space.
Applying
area of
adhesive
Joint pipe
(Field supply)
Drain pipe [3/4 in. (O.D.
1-1/16 in.)] (Field supply)
4 mm (5/32 in.) or less
2
Hose band
1
Drain hose
Fasten the Hose band
2
at the position where
vertical against ground.
The Hose band
2
must be positioned at the
right side of the Drain hose
1
as in the figure.
CAUTION
Do not connect to the Drain hole with adhesive. Using
adhesive may cause damage and water leaks.
(3) After installing the Drain hose
1
, check if the drainage is
smooth.
• When drain pump is not used. (Natural drainage)
Downward
gradient
2.5-5.0 mm
(0.10-0.19 in.)
CAUTION
To prevent excessive force on Drain hose
1
, avoid bends or
twists. (To bend or twist may cause water leaks.)
(4) After checking for drainage, attach the Drain hose
insulation B
3
to insulate, following the instructions as in
the figures.
To avoid space with Drain hose
1
and Hose band
2
,
press firmly the Drain hose insulation B
3
.
• When drain pump is used. (Ceiling concealed type only)
3
Drain hose
insulation B
Ensure there is
no space.
• When drain pump is not used. (Natural drainage)
3
Drain hose
insulation B
Ensure there is
no space.
