30
Refrigerant pipe installation
English
Instal
lation Pr
oc
edur
e
Classification
Example
Remarks
Maximum
allowable
length after
branch joint
First branch
joint ~
Farthest
Indoor unit
Pipe length
45 m or less
Installing only with
Y-joint
b+c+d+e+f+g+p ≤ 45 m
-
Installing with Y-joint
and distribution header
i+k ≤ 45 m
Installing only with
distribu-tion header
i ≤ 45 m
45 m~90 m
Note 1)
Required conditions must be satisfied
-
EEV kit
Model name
Remarks
EEV kit ~ Indoor unit
Actual pipe length
2 m
MEV-E24SA
1 indoor
Apply to products
without EEV (Wall
mount & ceiling)
MEV-E32SA
20 m or less
MXD-E24K132A
2 indoor
MXD-E24K200A
MXD-E32K200A
MXD-E24K232A
3 indoor
MXD-E24K300A
MXD-E32K224A
MXD-E32K300A
※
Please refer to the EEV Kit manual.
Note 1) Required condition
Classification
Condition
Example
First branch joint ~
Farthest Indoor unit
45m ≤ b+c+d+e+f+g+p ≤ 90m: branch pipes (b, c, d, e, f, g) size must
be increased by 1 grade
b
h
i
j
k
l
m
n
H2
1
2
3
4
5
6
7
8
a
A
B
C
D
E
F
G
H1
c
d
e
f
g
p
Total length of
extended pipe
If the size of pipe (main pipe), between the first branch joint and
the outdoor unit, is not increased by 1 grade, a+(b+c+d+e+f+g)×2
+h+i+j+k+l+m+n+p ≤ 1000 m
If the size of pipe (main pipe), between the first branch joint and
the outdoor unit, is increased by 1 grade, (a+b+c+d+e+f+g)×2
+h+i+j+k+l+m+n+p ≤ 1000 m
Each Y-joint ~
Each indoor unit
h, i, j, … p ≤ 45 m
Difference between the distance of the outdoor unit to the farthest indoor unit and nearest
indoor unit ≤ 45m, (a+b+c+d+e+f+g+p)-(a+h) ≤ 45m
Note 2) When indoor unit is located at higher level than outdoor unit, allowable height difference is 110m, (If the height difference is over
40m, contact your local dealer for more information.)
but when the indoor unit is located at lower level than outdoor unit, allowable height difference is 110m (If the height difference is
over 50m, need to decide whether to install PDM kit or not.)
Model name of the PDM kit : MXD-A38K2A, MXD-A12K2A, MXD-A58K2A
Summary of Contents for AM AXV Series
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