Toshiba MMY-SUG0801MT8P-E Installation Manual page 37

Allowable length of refrigerant pipes and allowable height difference between units
Heat recovery
Main piping L1
First branchingL4
L3
Height difference
between outdoor and
indoor units
H1
Multi port type Flow Selector
unit (*2)
71-EN
Outdoor unit
Branching pipe L2
L4 L5 L6
a b c
Indoor unit
The longest piping length Flow selector unit group Ln
L8 L9 L11
L10
Single port type
f
Flow Selector unit
The longest piping length from the first branch Li
L14
j k
Indoor unit
Branching header
Y-shaped branching joint
L7
d e
L12
i
g h
H3
Farthest piping length L
i m
H3
n
– 36 –
Height difference
between indoor units
H2
EN
72-EN