When installing pipe through
the wall, secure a cap at the
end of the pipe.
Correct
Correct
Incorrect
Incorrect
Correct
Incorrect
Hole
Hole
Attach a cap
or vinyl tape.
Attach a cap
or vinyl tape.
Attach a cap
or vinyl bag with
rubber band.
Do not place the pipe
directly on the ground.
Rain water can
enter.
1/64 ~ 1/32R
f
A
f
d
90
o
+ 2
o
45
o
+ 2
o
P5417025-rev.1
11
Use the specified non-flammable refrigerant
(R410A) for the outdoor unit in the refrigerant
cycle. Do not charge material other than
R410A into the unit such as hydrocarbon
refrigerants (propane or something similar),
oxygen, flammable gases (acetylene or etc.) or
poisonous gases when installing, maintaining
and moving. These flammables are extremely
dangerous and may cause an explosion, a fire,
and injury.
● Flaring Dimension
Perform the flaring work as shown below.
● Joint Selection
When using 1/2H material and the flaring work
is not available. In this instance, use a joint
selected from the chart below.
(
T
) It is impossible to perform the flaring
work with 1/2H material. In this case,
use an accessory pipe (with a flare).
5.1 Refrigerant Piping
●
Cautions for Refrigerant Pipe Work (Example)
(1) Prepare locally-supplied copper pipes.
(2) Select clean copper tubes making sure there
is no dust or moisture inside the tubes.
Before connecting pipes, blow the inside of
the tubes with nitrogen or dry air, to remove
any dust or foreign materials.
(3) Select the piping size as shown in the tables
below. Furthermore, check for the flare
nut and flaring dimension according to the
following figure and table.
5. Refrigerant Piping Work
NOTE:
Do not use a joint other than those specified in
the table above.
B
Flare Nut
Minimum Thickness of Joint
mm(inch)
Diameter
R410A
6.35 (1/4)
0.5
(0.020)
9.52
(3/8)
0.6
(0.024)
12.7
(1/2)
0.7
(0.028)
15.88
(5/8)
0.8
(0.031)
19.05
(3/4)
0.8
(0.031)
22.2
(7/8)
0.9
(0.035)
25.4
(1)
0.95
(0.037)
28.58
(1-1/8)
1.0
(0.039)
31.75 (1-1/4)
1.1
(0.043)
38.1 (1-1/2)
1.35 (0.053)
41.28
(1-5/8)
1.45
(0.057)
Flare Nut Dimension B mm(
inch)
Diameter
R410A
6.35 (1/4)
17
(11/16)
9.52
(3/8)
22
(7/8)
12.7
(1/2)
26
(1)
15.88
(5/8)
29
(1-1/8)
19.05
(3/4)
36 (1-7/16)
mm (inch)
Diameter
(ɸd)
A
+0
-0.4(-0.02)
R410A
6.35 (1/4)
9.1
(0.36)
9.52
(3/8)
13.2 (0.52)
12.7
(1/2)
16.6
(0.65)
15.88
(5/8)
19.7
(0.78)
19.05
(3/4)
(
T
)
Summary of Contents for CH-AP04MSSX
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