Advertisement
PIPING WORK
If a header branch is used instead of multi-kit
2
E
Header branch
3
3
3
CH
CH
CH
5
5
5
IU
IU
IU
!
C A U T I O N
Header branch cannot be connected to upstream or downstream piping
of CH-Box multiple.
Header branch
CH-M
CH
CH
IU
IU
IU
IU
Upstream
Downstream
Main pipe diameter (from the OU to the first branch)
Gas, low
Outdoor unit
pressure
RAS-8FSXNME
ø19.05
RAS-10FSXNME
ø22.20
RAS-12FSXNME
ø25.40
?
N O T E
When the maximum length of the equivalent refrigerant pipe from the OU
to the IU is over 100 m the pipe size of liquid line of the main pipe should
be increased by one size with reducers (field-supplied).
Pipe diameter after first branch or between multi-kits and
Pipe diameter between the multi-kit and the CH-Box
Total indoor unit capacity
after the first branch (HP)
< 6
(6-8.99)
(9-11.99)
(12-15.6)
?
N O T E
•
(*) CH-Box (single branch type) is not connected to liquid pipe.
•
If the multi-kit size is larger than the first branch,adjust the multi-kit
size to the first branch. In case that the selected pipe size after the
first branch is larger than the pipe size before the first branch, use the
same pipe size as before the branch.
•
If the size of the diameter between the multi-kit and the CH-Box is
larger than the main pipe diameter, adjust the diameter to the same
size as the main pipe diameter.
Pipe diameter for 2 pipes between CH-Box and multi-kit
or between multi-kits
Total indoor unit capacity
after the first branch (HP)
< 6
(6-8.99)
(9-11.99)
(12-15.6)
30
PMML0511 rev.1 - 06/2019
3
4
F
CH
Header branch
5
5
5
IU
IU
IU
CH-M
Header branch
IU
IU
IU
IU
IU
Upstream
Downstream
Gas, high/
Liquid
low pressure
ø15.88
ø9.52
ø19.05
ø9.52
ø22.20
ø12.70
Gas, low
Gas, high/
Liquid (*)
pressure
low pressure
ø15.88
ø12.70
ø19.05
ø15.88
ø22.20
ø19.05
ø25.40
ø22.20
ø12.70
Gas, low
Liquid
pressure
ø15.88
ø9.52
ø19.05
ø9.52
ø22.20
ø9.52
ø25.40
ø12.70
Pipe diameter between multi-kit and IU or between CH-
Box and IU
Indoor unit capacity (HP)
0.4-1.5
2
2.5-6.0
8.0
10.0
?
N O T E
•
(*): When the liquid piping length is longer than 15m, use Ø9.52 pipe
and reducer (field-supplied).
•
The pipe diameter should be the same as the indoor unit piping
connection size. Check the indoor unit connection sizes.
IU
A First branch and B multi-kits after the first branch (3
pipes section)
A
Outdoor unit HP
-
8-10
12
C Multi-kit after the first CH-Box or cooling only section (2
pipes section)
E Header branch for 2 pipes section
Total indoor unit HP
4-10
F Header branch for 3 pipes section
ø9.52
ø9.52
Total indoor unit HP
ø9.52
2-8
4-10
G CH-Box
CH-Box model
CH-AP160SSX
CH-AP280SSX
CH-AP04MSSX
CH-AP08MSSX
CH-AP12MSSX
CH-AP16MSSX
?
N O T E
(*) Up to two 8.0, 10.0HP type indoor units can be connected to the CH-Box
within the "Indoor unit maximum connection capacity". Make sure to
increase the pipe connection size by using the appropriate accessory pipe.
Gas
ø12.70
ø12.70 / ø15.88
ø15.88
ø19.05
ø22.20
B
Total indoor unit HP
<6
6-11.99
12-15.6
Total indoor unit HP
<12
12-15.6
Nº of header branches
8
Nº of header branches
4
8
Nº of
connection capacity
Branch
connectable
IU per branch
(HP)
1
7
≤6.0
1
8
≤10.0
4
6
≤16.0
8
6
≤30.0
12
6
≤30.0
16
6
≤30.0
Liquid
ø6.35 (*)
ø6.35 (*)
ø9.52
ø9.52
ø9.52
Model
E-52XN3
E-102XN3
E-162XN3
Model
E-102SN4
E-162SN4
Model
MH-108XN
Model
MH-84AN1
MH-108AN
IU maximum
for 1 branch
(HP)
≤6.0
≤10.0
≤6.0 (*)
≤6.0 (*)
≤6.0 (*)
≤6.0 (*)
Advertisement
