Mitsubishi Electric PUHY-HP200 Service Handbook page 50

[ II Restrictions ]
HP400, HP500 models
A B
Gas refrigerant distributor
Liquid refrigerant distributor
First branch
Length Between outdoor units
Total pipe length
Total pipe length (L) from the outdoor unit to the
farthest indoor unit
Total pipe length from the first branch to the far-
thest indoor unit ( )
Height Between indoor and outdoor units
difference
Between indoor units
Between outdoor units
HWE08110
Note1 Install the pipe that connects the branch pipe and the outdoor units in
the way that it has a downward inclination toward the branch pipe.
Downward inclination
C
Upward inclination
(Note)
D E
a
Indoor Indoor
1
G I
e
Indoor Indoor
5
Operation
To indoor unit
To indoor unit
L
F
c d
b
Indoor Indoor
2 3 4
J
g
i
f
Indoor Indoor
6 7 8
Pipe sections
A+B+C+D+E+F+G+I+J
+a+b+c+d+e+f+g+i
A(B)+C+G+I+J+i
- 41 -
Provide a trap on the pipe (gas pipe only) within 2 m from the
joint pipe if the total length of the pipe that connects the joint
pipe and the outdoor unit exceeds 2 m.
To indoor unit
Joint pipe
2m[6ft]
Trap
(gas pipe
only)
To indoor unit
2m[6ft] Max.
Joint pipe
To downstream units
C
Note : "Total sum of downstream unit model numbers"
in the figure above is the sum of the index of
the units after point C in the left figure.
Allowable length of
A+B 10 [32] or less
300 [984] or less
150 [492] or less
(Equivalent length 175
[574] or less)
G+I+J+i 40 [131] or less
H 50 [164] or less
(40 [131] or below if
outdoor unit is below in-
door unit)
h1 15 [49] or less
h2 0.1[0.3] or less
Unit: m [ft]
pipes
GB