Panasonic U-10MX4XPQ Installation Manual - page 11
U-5~18MX4XPQ
Urban Multi air conditioner
4PW28163-1
Installation manual
8
6.6.
Example of connection
Example of connection
(Connection of 8 indoor units Heat pump system)
Branc
h with line branc
h pipe
Branc
h with line branc
h pipe and header branc
h
pipe
Branc
h with header branc
h pipe
One outdoor unit
installed
(U-5~18MX4)
Outdoor units
installed in a
m
ultiple outdoor
unit system
(U-20~54MX4)
Install the joint par
t (
par
t in the figure) of the outdoor unit m
ulti connection piping kit
hor
iz
ontally with attention to the installation restr
ictions descr
ibed in "connecting the
refr
iger
ant piping".
(*) If the system capacity is U-18MX4 or more
, re-read to the first outdoor br
anch as
seen from the indoor unit.
Maxim
um allo
wab
le length
Betw
een outdoor and indoor units
Actual pipe length
Pipe length betw
een outdoor(*) and indoor units
≤
165 m
[Example] unit 8:
a+b+c+d+e+f+g+p
≤
165 m
[Example] unit 6:
a+b+h
≤
120 m, unit 8:
a+i+k
≤
165 m
[Example] unit 8:
a+i
≤
165 m
Equiv
alent length
Equiv
alent pipe length betw
een outdoor(*) and indoor units
≤
190 m (Assume equiv
alent pipe length of line br
anch pipe to be 0.5 m and of the header br
anch pipe to be
1.0 m.
(f
or calculation pur
poses))
T
otal e
xtension
length
T
otal piping length from outdoor unit* to all indoor units
≤
1000 m
Betw
een outdoor br
anch and outdoor unit (Only f
or
U-20MX4 or more)
Actual pipe length
Piping length from outdoor br
anch to outdoor unit
≤
10 m.
Appro
ximate length:
max.
13 m
Allo
wab
le height
Betw
een outdoor and indoor units
Diff
erence in
height
Diff
erence in height betw
een outdoor and indoor units (H1)
≤
50 m (
≤
40 m if outdoor unit is located in a lo
w
er
position).
Betw
een indoor and indoor units
Diff
erence in
height
Diff
erence in height betw
een adjacent indoor units (H2)
≤
15 m
Betw
een outdoor and outdoor units
Diff
erence in
height
Diff
erence in height betw
een outdoor unit (main) and outdoor unit (sub) (H3)
≤
5 m
Allo
wab
le length after the branc
h
Actual pipe length
Pipe length from first refr
iger
ant br
anch kit (either line br
anch pipe or header br
anch pipe) to indoor unit
≤
40 m (See note 1 on ne
xt page)
[Example] unit 8:
b+c+d+e+f+g+p
≤
40 m
[Example] unit 6:
b+h
≤
40 m, unit 8:
i+k
≤
40 m
[Example] unit 8:
i
≤
40 m
Refrig
erant branc
h kit selection
Refr
iger
ant br
anch kits can only be used with R410A.
Ho
w to select the line branc
h pipe
•W
hen using line br
anch pipe at the first br
anch counted from the outdoor unit side.
Choose from the f
ollo
wing tab
le in accordance with the capacity of the outdoor unit.
•F
or line br
anch pipes other than the fi
rst br
anch, select the proper branch kit model
based on the total capacity inde
x.
Ho
w to select the header branc
h pipe
•
Choose from the f
ollo
wing tab
le in accordance with the total capacity of all the indoor
units connected belo
w the header br
anch pipe
.
•
Note:
250 type cannot be connected below the header br
anch pipe
.
Ho
w to c
hoose an outdoor m
ulti connection piping kit (needed if the outdoor
unit capacity type is U-18MX4 or more
.)
•
Choose from the f
ollo
wing tab
le in accordance with the number of outdoor units
.
Example of do
wnstream indoor units
[Example]
in case of line br
anch pipe C;
indoor units
3+4+5+6+7+8
[Example]
in case of line br
anch pipe B;
indoor units 7+8,
in case of header br
anch pipe;
indoor units
1+2+3+4+5+6
[Example]
in case of header br
anch pipe;
indoor units 1+2+3+4+5+6+7+8
•
Use the outdoor unit multi connection piping kit that is sold separately as an option
(CZ-32PJ4PQ+CZ-48PJ4PQ) f
or the m
ulti installation of outdoor units
. Selection
method is as sho
wn in the r
ight tab
le
.
•
Do not use the outdoor unit multi connection piping kit (
CZ-32PJ2PQ+CZ-48PJ2PQ)
that are sold separately as an option of the M-type ser
ies and do not use
T
-joints
.
indoor unit
line br
anch pipe
header br
anch pipe
outdoor m
ulti connection piping kit
ab
c
d
e
f
g
H1
P
AB
C
D
E
F
G
12
3
4
5
6
7
8
H2
hi
j
k
l
m
n
H1
H2
a
i
b
cd
e
f
g
h
k
j
78
A
B
12
3
4
5
6
a
H1
H2
cd
e
f
g
h
i
b
12
3
4
5
6
7
8
AB
C
D
EF
G
ab
c
d
e
f
g
8
H2
H1
H3
P
hi
j
k
l
m
n
12
3
4
5
6
7
H1
H2
a
i
b
c
12
3
4
5
6
k
j
78
H3
A
B
de
f
gh
H1
H3
a
H2
cd
e
f
g
h
i
b
12
3
4
5
6
7
8
rs
t
r
≤
10 m (Appro
ximate length:
max.
13 m)
s
≤
10 m (Appro
ximate length:
max:
13 m)
t
≤
10 m (Appro
ximate length:
max:
13 m)
Outdoor unit capacity type
Refrig
erant branc
h kit name
U-5MX4
CZ-P20BK12Q
U-8+10MX4
CZ-P29BK12Q
U-12~18MX4
CZ-P64BK12Q
U-22~54MX4
CZ-P75BK12Q
Indoor capacity type (kW)
Refrig
erant branc
h kit name
CZ-P20BK12Q
200
≤
x
CZ-P29BK12Q
290
≤
x
CZ-P64BK12Q
≥
640
CZ-P75BK12Q
Indoor capacity type (kW)
Refrig
erant branc
h kit name
CZ-P64HK12Q (Max.
8 br
anch)
290
≤
x
CZ-P64HK12Q (Max.
8 br
anch)
(a)
≥
640
CZ-P75HK12Q (Max.
8 br
anch)
(a)
See note 2 on ne
xt page
Number of outdoor units
Branc
h kit name
2
CZ-32PJ4PQ
3
CZ-48PJ4PQ