32
Refrigerant pipe installation
English
Instal
lation Pr
oc
edur
e
EEV Kit
Model name
Remarkers
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-E32K222A
MXD-E32K300A
※
Please refer to the EEV Kit manual.
Note 1) 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
Note 2) Required condition
Classification
Condition
Example
First branch
joint ~ Farthest
Indoor unit
45 m ≤ b+h+k, l+m+q, l+r ≤ 90 m :
Size of the branch liquid and low
pressure gas pipes (b, l, m) must
be increased by 1 grade.
r
m
l
MCU
MCU
H4
n
h
o
p
q
k
j
i
g
f
e
d
c
b
a
H2
H1
H3
MCU
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+l+m)
x2+c+d+e+f+g+h+i+j+k+n+o+p+q+r
≤ 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+l+m)
x2+c+d+e+f+g+h+i+j+k+n+o+p+q+r
≤ 1000 m
MCU ~ Each
indoor unit
c+d, c+e, c+f, g, h+i, h+j, h+k, n, o,
p, q, r ≤ 45 m
Difference between the distance of the outdoor unit
to the farthest indoor unit and nearest indoor unit ≤
45 (a+b+h+k) - (a+b+c+d) ≤ 45
Note 3) For indoor units to which no MCU is connected, be sure to set their options to “Cooling only indoor unit,” and then connect them
to a low pressure gas pipe and a liquid pipe. Be sure to combine the cooling only indoor units so that their total capacity becomes
50% or less of the total capacity of all indoor units.
Note 4) In case of connecting more than one indoor unit in one MCU Port, the below indoor units cannot be combined. ERV plus
(AM***FNKDE**), OAP duct(AM***JNEPE**), Hydro Unit HE(AM***FNBD**), Hydro Unit HT(AM***FNBF**), AHU kit (MXD-
K***AN, MCM-D***N)
Note 5) In case of connecting two MCU ports with Y-joint, the indoor units cannot be combined to more than one.
Summary of Contents for AM AXV Series
Page 68: ......
