Mitsubishi Electric FDC100VNA, Техническое руководство

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- 78 - - 78 -
'11 • PAC-T-160
2.
REFRIGERANT PIPING WORK
●
F
o
r
m
odel
200V
,
always
use
Ǿ
12.7mm
liquid
pipes
,
w
hen
the
length
of
the
main
“L
”
exceeds
40m.
If
Ǿ
9.52mm
pipes
are
used
in
an
installa
tion
ha
ving
over
40m
piping,
they
can
cause
performance degrada
tion and/or wa
ter leaks from an indoor unit.
●
The
u
se
restrictions
a
ppearing
in
the
table
above
are
a
p
plicable
to
the
standard
pipe
size
combina
tions
sho
w
n
in
the
table
belo
w
.
W
here
an
existing
pip
e
system
is
utilized,
different
one-way
pipe
length
restrictions should a
p
ply depending on its pipe size.
F
or more informa
tion,
see
“ 6.
UTILIZA
T
ION OF EXISTING PIPING.”
●
With the triple pipe connection,
the way of use is different when the difference of one-way
pipe length after the first branching
point is 3m to
10m.
For details,
refer
to the
above table and right figure.
4)
R
f
i
i
ll
hi
k
d
i
l
1)
Restrictions
on
unit
installation
and
use
●
Check
the
follo
wing
points
in
light
of
the
indoor
unit
specifica
tions
and
the
installa
tion
site.
●
Obser
ve
the
follo
wing
restrictions
on
unit
installa
tion
and
u
se.
Improper
installa
tion
c
an
result
in
a
compressor
failure
or
performance
degrada
ti
on.
2)
Determination
of
pipe
size
●
Determine
refrigerant
pipe
size
pursuant
to
the
follo
wing
guidelines
based
on
the
indoor
unit
specifica
tions.
Plug the end of the pipe with ta
pe,
or other
ma
terial,
and fill the pipe with nitrogen gas.
Only use nitrogen gas (N
2
)
Ta
ping
＜
N
2
＞
Nitrogen
Brazing
Sta
tion valve
Primar
y side
Secondar
y side
0.5MP
a
Hand
Relief valve
Nitrogen
gas
Brazing
must
be
performed
under
a
nitrogen
gas
flow
.
Without
nitrogen
gas,
a
large
quantity
of
foreign
ma
tters
(oxidized
film)
are
crea
ted,
causing
a
critical
failure
from
ca
pillar
y
tube
or
expansion
valve
clogging.
About brazing
F
ield
piping
Ǿ
25.4(OD)
Accessor
y
pipe
A
Ǿ
22.22
(ID)
Joint
pipe
C
Field
piping
Ǿ
22.22(OD)
Accessor
y
pipe
B
Ǿ
22.22
(ID)
Ǿ
25.4
(ID)
Branching
pipe
set
(DIS-WB1,DIS-TB1)
Ǿ
25.4
(ID)
Branching
pipe
set
(DIS-WB1,DIS-TB1)
Accessor
y
pipe
A
Ǿ
22.22
(ID)
Joint
pipe
C
Ǿ
25.4
(ID)
Branching
pipe
set
(DIS-WB1,DIS-TB1)
Restrictions
Outdoor unit connected
Refrigerant piping (branch pipeL)
Model 200V
Flare
Brazing
Flare
Brazing
Flare
Brazing
Flare
Brazing
Model 250V
Gas pipe
Liquid pipe
Gas pipe
Liquid pipe
Gas pipe
Liquid pipe
Gas pipe
Liquid pipe
One-way pipe length of refrigerant piping One-way pipe length after the first branching point
Dimensional
restrictions
Eleva
tion difference between indoor and outdoor
units One-way pipe length after the first branching point and second branching point One-way pipe length difference from the first branching point to the indoor unit One-way pipe length difference from the second branching point to the indoor unit One-way pipe length between the first branching point from to the second branching poin
t
Main pipe length Eleva
tion difference between indoor units
One-way pipe length difference from the first branching point to the indoor unit
Marks
a
ppearting in the dra
wing
Model for outdoor units
Single type
Twin type
Triple type
A
Triple type B
Prohibita
tion of the use
Prohibita
tion of the use
Prohibita
tion of the use
Prohibita
tion of the use
W
-twin type
< 3m
≧
3m
L
L
L
La
H
La
H
200V
Liquid Piping
When the outdoor unit is positioned higher
,
When the outdoor unit is positioned lo
wer
,
− − − − − − − −
H L
− −
−
− − −
−
−
−
−
−− −− −−
−
− − −
− − −
｜
L1
−
L2
｜
− −
h
L
＋
L1,
L
＋
La
＋
L2,
L
＋
La
＋
L3
(2) (type B)
L1,
La
＋
L2,
L
＋
La
＋
L3
(2) (type B)
L
＋
La
＋
L1
,
L
＋
La
＋
L2
L
＋
Lb
＋
L3
,
L
＋
Lb
＋
L4
｜
L1
−
L2
｜, ｜
L3
−
L4
｜
｜
L1
−
L2
｜
,
｜
L3
−
L4
｜
｜
(L1
＋
La)
−
(L3
＋
Lb)
｜
,
｜
(L1
＋
La)
−
(L4
＋
Lb)
｜
｜
(L2
＋
La)
−
(L3
＋
Lb)
｜
,
｜
(L2
＋
La)
−
(L4
＋
Lb)
｜
La
＋L
1
,
L
＋
La
＋
L2
Lb
＋
L3
,
Lb
＋
L4
L1
＋
L2
,
L3
＋
L4
L1
−
(La
＋
L2),
L1
−
(La
＋
L3)
(1)
Indoor unit connected Ca
pacity of indoor unit
Branching pipe set Branching pipe set Branching pipe set Branching pipe set Refrigerant piping (branch pipe L1,L2) Indoor unit connected Ca
pacity of indoor unit
Indoor unit connected Ca
pacity of indoor unit
Refrigerant piping (branch pipe L1,L2,L3) Indoor unit connected Ca
pacity of indoor unit
Ca
pacity of indoor unit
Branching pipe set Branching pipe set Refrigerant piping (branch pipe La,L1) Refrigerant piping (branch pipe La,Lb) Refrigerant piping (branch pipe L2,L3) Indoor unit connected Refrigerant piping (branch pipe L1,L2,L3,L4)
In the case of asingle type In the case of a
twin type
In the case of a triple type
A
In the case of a triple type B In the case of a
W
-twin type
DIS-WB1
DIS-TB1
DIS-WB1
DIS-WB1
DIS-WB1
DIS-WB1
DIS-WB1
DIS-W
A
1
DIS-W
A
1
DIS-W
A
1
DIS-W
A
1
DIS-W
A
1
×
2
DIS-W
A
1
×
2
DIS-W
A
1
×
2
DIS-WB1
DIS-WB1
DIS-W
A
1
Total pipe length after the second branching point
Ǿ
9.52
Ǿ
12.7
Ǿ
25.4 or
Ǿ
28.58
Ǿ
22.22
200V∙ 250V 200V 200V Twin type
Triple type
W
-twin type
250V
200V 250V 200V
. 250V
200V 200V 250V
Gas piping
200V
Liquid Piping
Ǿ
9.52
Ǿ
12.7
Ǿ
25.4 or
Ǿ
28.58
Ǿ
22.22
200V∙ 250V
Gas piping
≦
40m
≦
70m
≦
35m
≦
40m
≦
70m
≦
35m
≦
5m
≦
30m
≦
27m
≦
10m
≦
3m
≦
10m
≦
3m
≦
15m
≦
30m
≦
15m
≦
0.5m
≦
10m
≦
10m
L
＋
L1
L
＋
L2
L
＋
L1,
L
＋
L2,
L
＋
L3
L
＋
L1
(1)
Prohibita
tion of the use
L
＋
L1
(1)
L1
(1)
｜
L1
−
L2
｜
,
｜
L2
−
L3
｜
,
｜
L3
−
L1
｜
L1,
L2,
L3
｜
L1
−
(La
＋
L2)
｜
,
｜
L1
−
(La
＋
L3)
｜
,
｜
L2
−
L3
｜
(2) (type B)
h1,
h2,
h3
H
−
h1,
h2,
h3
H
h1,
h2,
h3,
h4,
h5,
h6
La
＋
L2
,
La
＋
L3
(1)
｜
L2
−
L3
｜
Ǿ
22.22
Ǿ
9.52
Ǿ
22.22
Ǿ
12.7
Ǿ
25.4
Ǿ
9.52
Ǿ
25.4
Ǿ
12.7
Ǿ
22.22
Ǿ
12.7
Ǿ
22.22
Ǿ
12.7
Ǿ
22.22
Ǿ
9.52 or
Ǿ
12.7
Ǿ
22.22
Ǿ
12.7
Ǿ
22.22
Ǿ
12.7
Ǿ
22.22
Ǿ
12.7
Model 200V
, Model
VA80
Model 250V
, Model
VA100
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
12.7
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
9.52
Ǿ
12.7
Ǿ
6.35
Ǿ
12.7
Ǿ
9.52
Ǿ
12.7
Ǿ
6.35
Ǿ
12.7
Ǿ
9.52
Ǿ
12.7
Ǿ
6.35
Ǿ
12.7
Ǿ
9.52
Ǿ
12.7
Ǿ
6.35
Ǿ
15.88
Ǿ
9.52
Ǿ
15.88
Ǿ
6.35
Model 100V
×
2,
Model
VA40
×
2
Model 71V
×
3,
Model
VA30
×
3
Model 71V
×
3,
Model
VA30
×
3
Model 50V
×
4,
Model
VA20
×
4
M
odel 60V
×
4
Model V
A25
×
4
Model 125V
×
2,
Model
VA50
×
2
Model 60V
×
2
＋
Model 125V
Model
VA25
×
2
＋
Model V
A50
Model 71V
×
2
＋
Model 100V
Model V
A30
×
2
＋
Model V
A40
Note (1) Install the indoor units so tha
t L + L1 becomes the longest one-way pipe.
Note (2) Connect the unit tha
t is the maximum ca
pacity with L1.
Keep the pipe length difference between L1 and
(La + L2) or (La + L3) within 10m.
<
W
-twin type >
< Single type > <
Triple type >
<
Triple type >
<
Twin type >
(The unit of which eleva
tion difference from the outdoor unit is the largest.)
Indoor unit
(The unit of which eleva
tion difference from the outdoor unit is the largest.)
Indoor unit
(The unit of which eleva
tion difference from the outdoor unit is the largest.)
Indoor unit
(The unit of which eleva
tion difference from the outdoor unit is the largest.)
Indoor unit
L1
L2
L (riser)
H
Outdoor unit
h
L
H
Outdoor unit
Indoor unit
L1
L2
L3
L (riser)
H
Outdoor unit
Indoor unit
Indoor unit
h3
h1 h2
L1
L2
L3
La
L4
Lb
L (riser)
H
Outdoor unit
Indoor unit
Indoor unit
Indoor unit
h3
h1
h6
h5
h4 h2
Indoor unit
Type B Type
A
L (riser)
Outdoor unit
Indoor unit
Indoor unit
L1
L2
L3
La
h3
h1 h2
H
●
When
the
model
50V
or
model
6
0V
model
is
connected
as
an
indoor
unit,
a
lw
ays
u
se
a
Ǿ
9.52
liquid
pipe
for
the
branch
(branching
p
ipe
–
indoor
unit)
and
a
different
diameter
joint
supplied
with
the branching pipe set for connection with the indoor unit (
Ǿ
6.35 on the liquid pipe side).
If a
Ǿ
6.35 pipe is used for connection with a branching pipe,
a refrigerant distribution disorder may occur
, causing one of the indoo
r units to fall short of the ra
ted ca
pacity
.
●
A
riser
pipe
must
be
a
part
of
the
main.
A
branching
pipe
set
should
b
e
installed
horizontally
at
a
p
oint
as
close
to
an
indoor
unit
as
possible.
A
branching
part
must
be
dressed
with
a
h
ea
t-insula
tion
ma
terial
supplied
as
an
accessor
y.
●
Fo
r
the
details
of
installa
tion
work
required
at
and
near
a
b
ranching
area,
see
the
installa
tion
manual
supplied
w
ith
your
branching
pipe
set.
C
AUTION
C
AUTION
3)
How
to
use
pipe
reducer
.
●
Ǿ
28.58(OD)
size
of
the
refrigerant
gas
pipe
can
be
used by using accessor
y pipe
A and joint pipe C,D.
Read
y joint C and D yourself.
●
Ǿ
25.4(OD)
size
of
the
refrigerant
gas
pipe
can
be
used
by using accessor
y pipe
A and joint pipe C.
Read
y joint C yourself.
Need not accessor
y pipe B.
●
Ǿ
22.22(OD)
size
of
the
refrigerant
gas
pipe
can
be used by using accessor
y pipe
A,B.
Joint
pipe
D
F
ield
piping
Ǿ
28.58(OD)
Accessor
y
pipe
A
Ǿ
22.22
(ID)