Mitsubishi Electric PUHY-P200 Service Handbook page 57

[2-10 Restrictions on Refrigerant Pipes ]
When the vertical separation between indoor units exceeds 15 m
Outdoor unit above indoor unit
example 1
Increase the size of the pipe indicated by
Outdoor
"A, a1, and a2" by one size.
unit
B
A
H:exceeds 15 m
a1
a2
Indoor unit
Outdoor unit below indoor unit
example 3
Increase the size of the pipe indicated by "A, a1, and a2" by one size.
A
H:exceeds 15 m
B b
Indoor unit
Outdoor
unit
When the distance from the first branch to the farthest indoor unit
exceeds 40 m and the vertical separation between indoor units
exceeds 15 m
example 5
Outdoor Outdoor
Increase the size of the pipe indicated by
unit unit
"E, e1, e2 and b1" by one size.
C
c
Indoor unit
A
L2
H1:exceeds 15 m
H2:15 m or less
L1, L2:40m a
Indoor unit
HWE14040
b1
Indoor unit Indoor unit
H
Indoor unit
a1
a2
Indoor unit Indoor unit
H
Indoor unit
L1
D E
d
Indoor unit Indoor unit
B
b2
Indoor unit
b1
Indoor unit
example 2
Outdoor Outdoor
unit unit
C
H1:exceeds 15 m
A
H2:15 m or less
Indoor unit
When the distance from the first branch to the farthest indoor unit
exceeds 40 m
example 4
Outdoor Outdoor
Increase the size of the pipe indicated by "E, e1, e2 and b1" by one size.
unit unit
C
Indoor unit
H:15 m or less
A
L1, L2:40m
Indoor unit
e2 e1
H2
H1
e1
Indoor unit
- 48 -
Increase the size of the pipe indicated by
"A, B, b1 and e1" by one size.
D E
c d e2
Indoor unit Indoor unit Indoor unit
B
a b2
b1
Indoor unit
Indoor unit
L1
D E
c d
Indoor unit Indoor unit
L2
B
a b2
Indoor unit Indoor unit
e1
H2
H1
Indoor unit
e2
e1
Indoor unit
b1
GB