Drainage Piping Work - Mitsubishi Electric Mr. Slim PLA-RP BA Série Manuel D'installation

4. Installing the refrigerant piping
,
Fig. 4-3

5. Drainage piping work

Max. 20 m
1.5 - 2 m
Fig. 5-1
(mm)
11
25 25 25
Fig. 5-
6
4.3. Indoor unit (Fig. 4-3)
Heat insulation for refrigerant pipes:
A Refrigerant pipe and
1 Wrap the enclosed large-sized pipe cover around the gas pipe, making sure
insulating material
B Pipe cover (large)
2 Wrap the enclosed small-sized pipe cover around the liquid pipe, making sure
C Pipe cover (small)
D Refrigerant pipe (gas)
3 Secure both ends of each pipe cover with the enclosed bands. (Attach the
E Refrigerant pipe (liquid)
F Band
• After connecting the refrigerant piping to the indoor unit, be sure to test the pipe
G Cross-sectional view of
connection
H Pipe
I Insulating material
4.4. For twin/triple combination
J Squeeze
Refer to the outdoor unit installation manual.
5.1. Drainage piping work (Fig. 5-1)
• Use VP25 (O.D. ø32 PVC TUBE) for drain piping and provide 1/100 or more
• Be sure to connect the piping joints using a polyvinyl type adhesive.
• Observe the figure for piping work.
Max. 15 cm
• Use the included drain hose to change the extraction direction.
Grouped piping
1.Connect the drain socket (supplied with the unit) to the drain port. (Fig. 5-2)
2.Install a locally purchased drain pipe (PVC pipe, O.D. ø32).
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
that the end of the pipe cover touches the side of the unit.
that the end of the pipe cover touches the side of the unit.
bands 20 mm from the ends of the pipe cover.)
connections for gas leakage with nitrogen gas. (Check that there is no refrigerant
leakage from the refrigerant piping to the indoor unit.)
downward slope.
Correct piping
1
Wrong piping
2
Insulation (9 mm or more)
A
Downward slope (1/100 or more)
B
O.D. ø32 PVC TUBE
D
Make it as large as possible
E
Indoor unit
F
Make the piping size large for grouped
G
piping.
(Fix the tube using PVC adhesive then secure it with a band.)
(Fix the pipe using PVC adhesive then secure it with a band.)
band. (Both insulating material and band are supplied with the unit.)
Unit Drain pipe (O.D. ø32 PVC TUBE)
A G
Insulating material Insulating material (purchased locally)
B H
Band Transparent PVC pipe
C I
Drain port (transparent) O.D. ø32 PVC TUBE(Slope 1/100 or more)
D J
Insertion margin Drain socket
E K
Matching
F
Support metal
C
Air bleeder
K
Raised
L
Odor trap
M
Downward slope (1/100 or more)
H
O.D. ø38 PVC TUBE for grouped piping.
I
(9 mm or more insulation)
Up to 85 cm
J