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Mitsubishi Electric PURY-P72 Service Handbook page 57

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[II Restrictions J
(3) System that requires more than 16 BC controller ports or with multiple BC controllers
above.>
h2
h3
h1
h1
c---"""
Branch joint
(CMY\,'025-G2)
B ~
c
d
I
InJoor
II
Ind~or
I
Maximum of 3 units per
port
,Tolal capacily of P54 or below I
/
a
Junction pipe
b
I
(CMY-R160-Jj
I
I
Indoor
I
I
Indoor
I
(P06 - P54 models)
(P72 - P96 models)
h1
H
H'
BfllOCh join! (CMY-Rl00VBKj
Outdoor
Unit
1 Outdoor unit 2
The
distributor
on the Iow·pressure
side
must
be
placed in the
outdoor
unit that has
8
largsr capadty
~
Index of the two, regardless of the relative positions of the outdoor units or their addresses.
"
.
~
If
the
distributor is phlced in the outdoor unit that
has
8
sm.r capacity, refngerant will not be property
, "
~l~ ,..
distributed and compressor failure may result.
L
.
t.:
I
(If outdoor units that have the same capacity are used in combination, the distributor can
be
placed in
M
;
li~
__'
Unit: m
[tt)
Operation
Pipe sections
Allowable length of pipes
Length
Total pipe length
F+G+A+B+C+D+E+a+b+c+d+e
Refer to the restrictions on the total pip-
+f
ing length in the graph on the next page.
Total pipe length from the out-
F(G)+A+C+E+f
165 [541J or less
door unit to the farthest indoor
(Equivalent length 190 [623J or less)
unit
Between outdoor unit and BC
F(G)+A
110 [360J or less
controller
Between BC controller and in-
B+d or C+D+e
40 [131) or less'
1
door unit
or C+E+f
Between indoor units
F+G
5 [16J or less
Height
Outdoor unit
H
50 [164J or less
differ-
above in-
ence
Between indoor
door unit
and outdoor
units
Outdoor unit
H'
40 [131J or less
below in-
door unit
Between indoor unit and BC
h1
15 [49J(10[32]) or less"2
controller
Between indoor units
h2
15 [49)(10[32]) or less
"2
Between the Be controller
(main or sub) and the sub BC
h3
15 [49) or less
controller
Between outdoor units
h4
0.1 [0.3J or less
*1. When the overall pipe length between the BC controller and the farthest indoor unit exceeds 40m [131
tt),
observe
the restrictions in the figure titled "Restrictions on pipe length" below. (Except the P96 models)
*2. When the capacity of the connected indoor units is P72 or above, use the figures in the parentheses as a reference.
HWE0803A
- 47-
GB
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