Refrigerant Piping Work - Mitsubishi Electric Mir.SLIM SUZ-KA09NA Manuel D'installation

ø1/4
A
ø3/8
ø3/8
ø1/2 (12.7)
Copper
pipe
Copper pipe
Burr
Flaring tool
Clutch type
Inside is shining
Smooth all around
without any
scratches.
Even length all
around
4
D
Indoor unit
E
A
Indoor unit
B
(6.35)
B
Good No good
90°
Tilted Uneven Burred
Spare reamer
Pipe cutter
A
Copper pipe
Die
Flare nut
A
Pipe length
Models
(one way)
Max. 65 ft (20 m)
Max. 100 ft (30 m)
is positioned higher.
ant (R410A) charge is required.
(The outdoor unit is charged with refrigerant for pipe length up to 25 ft. (7.5 m).)
Up to 25 ft (7.5 m)
Pipe length
Exceeding 25 ft (7.5 m)
Refrigerant to
be added
diameter
Model Pipe
inch (mm)
For liquid 1/4 (6.35)
For gas
For liquid 1/4 (6.35)
For gas
For liquid 1/4 (6.35)
For gas 1/2 (12.7)
For liquid 1/4 (6.35)
For gas 1/2 (12.7)
Caution:
insulation may cause incorrect installation of the indoor unit, and too little insulation
may cause condensate to form.
1) Cut the cooper pipe as straight as possible with a pipe cutter.
2) Remove all burrs from the cut section of pipe, ensuring that precautions are taken
to avoid getting metal shavings into the piping.
4) Flaring work. Firmly hold copper pipe in the dimension shown in the table. Select
A inch (mm) from the table according to the tool you use.
5) Check
A inch (mm)
Pipe diameter Nut
Clutch Clutch
inch (mm) inch (mm)
type tool type tool
for R410A for R22
1/4 (6.35) 1/4 (17)
3/8 (22)
0.04 to
0 to 0.02
(0 to 0.5)
(1.0 to 1.5)
1/2 (12.7) 1/2 (26)
5/8 (15.88)
B C
Height Number of
difference bends (one way)
Max. 40 ft (12 m) Max. 10
Max. 50 ft (15 m) Max. 10
No additional charge is required.
Additional charge is required.
(Refer to the table below.)
Min. wall Insulation
Insulation
thickness thickness
material
inch (mm) inch (mm)
0.0315 (0.8) 5/16 (8)
0.0315 (0.8) 5/16 (8)
0.0315 (0.8) 5/16 (8)
Heat resisting
0.0315 (0.8) 5/16 (8)
foam plastic
0.0315 (0.8) 5/16 (8)
gravity
0.0315 (0.8) 5/16 (8)
0.0315 (0.8) 5/16 (8)
0.0315 (0.8) 5/16 (8)
Tightening torque
ft·lb
type tool N·m
(kgf·cm)
for R22
10 to 13
13.7 to 17.7
0.06 to
(140 to 180)
0.08
25 to 30
(1.5 to 2.0)
34.3 to 41.2
(350 to 420)
0.06
36 to 42
0.08 to
(500 to 575)
0.10
54 to 58
(2.0 to 2.5)
73.5 to 78.4
(750 to 800)
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