6
4.4. Drainage piping work (Fig. 4-5)
• Use VP25 (O.D. ø32 mm, 1-1/4 inch 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.
Fig. 4-5
1
Correct piping
2
Wrong piping
A
Insulation (9 mm, 3/8 inch 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 mm, 1-1/4 inch PVC TUBE
E
Make it as large as possible
F
Indoor unit
G
Make the piping size large for grouped pip-
ing.
H
Downward slope (1/100 or more)
I
O.D. ø38 mm, 1-1/2 inch PVC TUBE for
grouped piping.
(9 mm, 3/8 inch or more insulation)
J
Up to 500 mm, 19-11/16 inch
Fig. 4-6
(inch)
4. Refrigerant pipe and drain pipe
1. Connect the drain socket (supplied with the unit) to the drain port. (Fig. 4-6)
(Affix the tube using PVC adhesive then secure it with a band.)
2. Install a locally purchased drain pipe (PVC pipe, O.D. ø32 mm, 1-1/4 inch).
(Affix the pipe using PVC adhesive then secure it with a band.)
3. Insulate the tube and pipe. (PVC pipe, O.D. ø32 mm, 1-1/4 inch 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
Unit
B
Insulating material
C
Band (large)
D
Drain port (transparent)
E
Insertion margin
F
Matching
G
Drain pipe (O.D. ø32 mm, 1-1/4 inch PVC TUBE)
H
Insulating material (purchased locally)
I
Transparent PVC pipe
J
O.D. ø32 mm, 1-1/4 inch PVC TUBE (Slope 1/100 or more)
K
Band (small)
L
Drain socket
5.1. Indoor unit (Fig. 5-1)
1. Remove 2 screws to detach the electric component cover.
2. Route each cable through the wiring intake into the electric component box. (Procure
power supply cable and control cable locally.)
3. Securely connect the power supply cable and control cable to the terminal
blocks.
4. Secure the cables with clamps outside the electric component box.
5. Attach the electric component cover as it was.
• Do not allow slackening of the terminal screws.
• Always install earth.
(Earth cable dia: Thicker than 1.6 mm (AWG14))
• Fix power supply cable and control cable to electric component box by using buffer
bushing for tensile force. (PG connection or the like.)
• Tape is affixed over the conduit hole used for connecting the electric wiring.
Please remove this tape if making a connection through the hole.
A
Electric component cover
B
Electric component box
C
Power supply terminals (L1, L2, GR)
D
Transmission terminals (M1, M2, S)
E
MA remote controller terminal (1. 2)
F
Indoor controller
G
Power board
H
Power supply cable of Location
I
Transmission cable of Location
J
Remote control cable of Location
K
Remote control cable
L
Transmission cable
M
Power supply cable
Fig. 5-1
2-11/64 inch
15/32 inch
Max. 65 ft.
5 to 7 ft.
Max. 6 in.
5. Electrical work
1
2
