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6. Drainage piping work
1
Max. 20 m
1.5–2 m
A
B
2
K
B
E
D
D
F
F
F
H
I
Fig. 6-1
B
K
D E E
30 30
30
A
F
L
C
Fig. 6-2
C
L
M
Max. 150 mm
D
G
J
F
H
C,K
A
I
G
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)
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)
(mm)
(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.)
J
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
C Support metal
K Air bleeder
L Raised
M Odor trap
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
7
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