Connecting Drain Pipe - Mitsubishi Electric CITY MULTI PLFY-WL VFM-E Series Installation Manual

3. Connecting drain pipe

1
Max. 20m
1.5~2m
2
B
K
D E E
30 30
A
L
C
en
4
Max. 15cm
Fig. 3-1
H
30
A
F
G
Fig. 3-2
3.1. Drainage piping work (Fig. 3-1)
• Use VP25 (O.D. ø32 (1-1/4") 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.
Correct piping
1
Wrong piping
2
Insulation (9 mm or more)
A
Downward slope (1/100 or more)
B
Support metal
C
Air bleeder
K
Raised
L
Odor trap
M
Grouped piping
O.D. ø32 PVC TUBE
D
Make it as large as possible
E
Indoor unit
F
Make the piping size large for grouped piping.
G
Downward slope (1/100 or more)
H
O.D. ø38 PVC TUBE for grouped piping.
I
(9 mm or more insulation)
Up to 850 mm
J
1. Connect the drain socket (supplied with the unit) to the drain port. (Fig. 3-2)
(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
(mm)
band. (Both insulating material and band are supplied with the unit.)
Unit
A
C,K
Insulating material
B
J
Band (large)
C
Drain port (transparent)
D
Insertion margin
E
Matching
F
I
Drain pipe (O.D. ø32 PVC TUBE)
G
Insulating material (purchased locally)
H
Transparent PVC pipe
I
O.D. ø32 PVC TUBE (Slope 1/100 or more)
J
Band (middle)
K
Drain socket
L