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
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
flarin
g
work
as
shown
below.
● Joint
Selection
When
using
1/2H
material
and
the
flarin
g
work
is
not
available.
In
this
instance,
use
a
joint
selected
from
the
chart
below.
(
T
)
It
is
impossible
to
perform
the
flarin
g
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
flar
nut
and
flarin
g
dimension
according
to
the
following
figur
e
and
table.
5. Refrigerant Piping Work
NOTE:
Do
not
use
a
joint
other
than
those
specifie
d
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
)
11
Содержание HCHM-N04X
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