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EN
ID
ID
System restriction
stinu 3 ot pUnoitanibmoc tinu roodtuO
PH 45 ot pUstinu roodtuo fo yticapac latoT
)1*( stinu 46 ot pUnoitcennoc tinu roodnI
Total capacity of indoor units
(varies depending on the height difference between
indoor units.)
H2 15 m 135% of outdoor units’ capacity (*2)
15 m < H2 105% of outdoor units’ capacity
(*1) : In case without central control.
It is up to 54 units in case with central control.
(*2) : MAP200* : 125%, AP381* : 130%, AP401* : 125%
Cautions for installation
Set the outdoor unit first connected to the bridging pipe to the indoor units as the header unit.
Install the outdoor units in order of their capacity codes: A (header unit) B C
When connecting gas pipes to indoor units, use Y-shaped branching joints to keep pipes level.
When piping to outdoor units using Outdoor unit connection piping kits, intersect the pipes to the outdoor unit
and those to indoor units at a right angle as shown in figure 1 on “6. Installation of the outdoor unit”.
Do not connect them as in figure 2 on “6. Installation of the outdoor unit”.
Allowable length of refrigerant pipes and allowable height
difference between units
L14
LA
La
Lb
Lc
a
bc
k
l
f
g
h
L3
L5
L6 L7
L8
d
e
m
n
o
(o)
i
j
LO
(m)
(n)
L4
(c)
(b)
(a)
p
q
r
s
t
L9
L11
H5
L10
L12
u
v
H6
L13
Height
difference
between
outdoor units
H3
Outdoor unit
A
Header
unit
B
Follower
unit
C
Follower unit
Outdoor unit connecting
Outdoor unit connection piping kit
Branching pipe
L2
Branching header
Main piping L1
Height
difference
between
outdoor and
indoor units:
H1
tnioj gnihcnarb depahs-Ygnihcnarb tsriF
Indoor unit connecting pipe
Indoor unit
The longest piping length:
L
The longest piping length from the first branch: Li
The longest piping length in Flow selector unit group : Ln
Flow
Selector
unit
Indoor unit
Indoor unit
Multi port type Flow Selector unit
Single port type Flow Selector unit
(Long piping model)
Y-shaped branching joint
H4
Height difference between indoor units H2
Indoor unit
connecting pipe
23-EN 24-EN
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