8
6. Drainage piping work
(mm)
Fig. 6-2
B
C
F
K
30 30 30
D E
E
L
G
H
I
A
A
J
C
,
K
Fig. 6-1
6.1. Drainage piping work (Fig. 6-1)
• Use VP25 (O. D. ø32 PVC TUBE) for drain piping and provide 1/100 or more
downward slope.
• Be sure to connect the piping joints using a polyvinyl type adhesive.
• Observe the figure for piping work.
• Use the included drain hose to change the extraction direction.
1
Correct piping
2
Wrong piping
A
Insulation (9 mm or more)
B
Downward slope (1/100 or more)
C
Support metal
K
Air bleeder
L
Raised
M
Odor trap
Grouped piping
D
O. D. ø32 PVC TUBE
E
Make it as large as possible
F
Indoor unit
G
Make the piping size large for grouped piping.
H
Downward slope (1/100 or more)
I
O. D. ø38 PVC TUBE for grouped piping
(9 mm or more insulation)
J
Up to 850 mm
1. Connect the drain socket (supplied with the unit) to the drain port. (Fig. 6-2)
(Affix the tube using PVC adhesive then secure it with a band.)
2. Install a locally purchased drain pipe (PVC pipe, O.D. ø32).
(Affix the pipe using PVC adhesive then secure it with a band.)
3. Insulate the tube and pipe. (PVC pipe, O.D. ø32 and socket)
4. Check that drain flows smoothly.
5. Insulate the drain port with insulating material, then secure the material with a
band. (Both insulating material and band are supplied with the unit.)
A
Main unit
B
Insulating material
C
Band (large)
D
Drain port (transparent)
E
Insertion margin
F
Matching
G
Drain pipe (O.D. ø32 PVC TUBE)
H
Insulating material (purchased locally)
I
Transparent PVC pipe
J
O.D. ø32 PVC TUBE (Slope 1/100 or more)
K
Band (middle)
L
Drain socket
1
2
A
B
C
B
M
L
K
D
E
D
H
I
G
D
F
F
F
J
F
Max. 20 m
1.5–2 m
Max. 150 mm
BH79A367H01_en.indd 8
2017/11/13 10:38:52
