Mitsubishi Electric City Multi CMB-P1016NU-G, Service Handbook

Page: 65 / 349

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[
II
Restrictions ]
(3) A combination of line and header branching
Unit: m [ft]
Operation Pipe sections
Allowable length of
pipes
Length Total pipe length A+B+C
+a+b+c+d+e
300 [984] or less
Total pipe length (L) from the heat source unit to
the farthest indoor unit A+B+b 150 [492] or less
Total pipe length from the first branch to the far-
thest indoor unit ( ) B+b 40 [131] or less
Height
difference Between indoor and
heat source units Heat source unit above
indoor unit H 50 [164] or less
Heat source unit below
indoor unit H' 40 [131] or less
Between indoor units h 15 [49] or less
L
H H'
A
A
B
C
a
b
c
d
h
e
First branch
(Branch joint)
5
1
2
3 4
Note : "Total sum of downstream unit model numbers"
in the table is the sum of the model numbers
of the units after point A in the figure.
Branch joint
Branch header
cap
Indoor Indoor Indoor
Indoor
Indoor
To downstream units
Note : Pipes from the header may not be
re-branched.
Heat source unit