Mitsubishi Electric City Multi PLFY-P VCM-E3 Series Installation Manual page 5

B
Pipe size
(mm)
1
1.5~2m
2
Liquid pipe
Tightening torque
(N·m)
34 - 42
34 - 42
A
Refrigerant pipe and insulating material
(Procure locally)
B
Pipe cover (large) (Accessory)
C
Pipe cover (small) (Accessory)
D
Refrigerant pipe (gas)
E
Refrigerant pipe (liquid)
F
Band (Accessory)
G
Cross-sectional view of connection
H
Refrigerant pipe
I
Insulating material
J
Squeeze
Max. 15cm
Gas pipe
Pipe size Tightening torque
(mm) (N·m)
49 - 61
49 - 61
C
Apply refrigerating machine oil over the entire flare seat surface.
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
connections for gas leakage with nitrogen gas. (Check that there is no refrigerant
leakage from the refrigerant piping to the indoor unit.)
more downward slope.
1
Correct piping
2
Wrong piping
A
Insulation (9 mm or more)
B
C
Support metal
K
Air bleeder
L
Raised
M
Odor trap
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
I
(9 mm or more insulation)
J
1. Connect the drain socket (supplied with the unit) to the drain port. (Fig. 3-5)
(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.)
A
Unit
B
Insulating material
C
Band (large)
D
Drain port (transparent)
E
Insertion margin
F
Matching
G
Drain pipe (O.D. ø32 PVC TUBE)
H
Insulating material (purchased locally)
I
Transparent PVC pipe
J
K
Band (small)
L
Drain socket
Flare nut O.D.
Liquid pipe Gas pipe
(mm) (mm)
17 26
17 26
22 29
22 29
5