Mitsubishi Electric Mr. SLIM PLA-ZP EA Serie Manuel D'installation page 6

4. Installing the refrigerant piping
G
F
B, C
J
I
H
Fig. 4-3
5. Drainage piping work
1 Max. 20 m
1.5 - 2 m
A
B
2
K
B
3
D E D
F F
H
I
Fig. 5-1
(mm)
F
A C K F H
6 30 30
G
D E
C
J
I
Fig. 5-2
6
A Refrigerant pipe and heat
A
insulation
B Pipe cover (large)
C Pipe cover (small)
D Refrigerant pipe (gas)
E Refrigerant pipe (liquid)
F Band (large)
G Cross-sectional view of
connection
H Pipe
I Heat insulation
J Squeeze
B D
F
E
C
Max. 15 cm
C
J
F
L
M
D
F
G
C
A
7
7
18
B
Heat insulation for refrigerant pipes (Fig. 4-3)
1 Wrap the enclosed large-sized pipe cover around the gas pipe, making sure that
the end of the pipe cover touches the side of the unit.
2 Wrap the enclosed small-sized pipe cover around the liquid pipe, making sure that
the end of the pipe cover touches the side of the unit.
3 Secure both ends of each pipe cover with the enclosed bands. (Attach the bands
20 mm from the ends of the pipe cover.)
4.3. For twin/triple/quadruple combination
Refer to the outdoor unit installation manual.
Some outdoor units cannot be used in a simultaneous twin/triple/quadruple system.
5.1. Drainage piping work (Fig. 5-1)
• The indoor parts of the drain pipe should be wrapped with polyethylene foam insula-
tion materials (specific gravity of 0.03, thickness of 9 mm or more).
• Use VP25 (O.D. ø32 PVC TUBE) for drain piping and provide 1/100 or more down-
ward slope.
• Be sure to connect the piping joints using a PVC type adhesive.
• Observe the figure for piping work.
• Use the included drain hose to change the extraction direction.
• When performing the drainage piping work, be sure to use the support metal holders.
If a load is applied to the drain socket that damages the hose or causes the hose
to become detached, water leakage may result.
Correct piping
1
Wrong piping
2
Grouped piping
3
Insulation (9 mm or more)
A
Downward slope (1/100 or more)
B
C Support metal
O.D. ø32 PVC TUBE
D
Make it as large as possible
E
(about 10 cm)
Main unit
F
1. Connect the drain socket (supplied with the unit) to the drain port. (Fig. 5-2)
(Fix the tube using PVC adhesive then secure it with a band.)
2. Install a locally purchased drain pipe (PVC pipe, O.D. ø32).
(Fix the pipe using PVC adhesive then secure it with a band.)
3. Check that drain flows smoothly.
4. Insulate the drain port and socket with insulating material, then secure the material
with a band. (Both insulating material and band are supplied with the unit.)
5. Insulate the tube and pipe. (PVC pipe, O.D. ø32)
H
Main unit
A
Insulating material
B
C Band (large)
Drain port (transparent)
D
Insertion margin
E
G
Matching
F
Make the piping size large for grouped pip-
G
ing.
Downward slope (1/100 or more)
H
O.D. ø38 PVC TUBE for grouped piping
I
(9 mm or more insulation)
J Up to 85 cm
Air bleeder
K
Raised
L
Odor trap
M
Drain pipe (O.D. ø32 PVC TUBE)
G
Insulating material (purchased locally)
H
I Transparent PVC pipe
O.D. ø32 PVC TUBE (Slope 1/100 or more)
J
Drain socket
K