Mitsubishi Electric M Series Installation Manual page 34

MITSUBISHI ELECTRIC / Y SERIES
PUMY-SP
Y SERIES - DC Inverter/Heat Pump
230V
Breaker
Three-phase connection
380V
Breaker
Permissible lenght (One-way)
Permissibile height difference
Number of bends
32
TB3
M1
M2
L
S
N
B1
B2
T
PUMY-SP
L1
L2
L3
N
Total piping length
Farthest piping lenght (L)
Piping length between outdoor unit branch boxes
Farthest piping length after branch box ( )
Total piping length between branch boxes and indoor units
In indoor/outdoor unit section (H)
In branch box/indoor unit section (h1)
In each branch unit (h2)
In each indoor unit (h2)
A
A
B
B
H
h1
a b
D
D
h3
TB5
M1
M2
S
L
N
T
BRANCH BOX
PAC-MK53
TB5
M1
M2
S
L
N
T
BRANCH BOX
PAC-MK33
*1
L
C
C
C
h2
c d e
f g h
D D
D
D D
D
S1 S1
S2 S2
S3 S3
S1 S1
S2 S2
S3 S3
S1 S1
S2 S2
S3 S3
S1 S1
S2 S2
S3 S3
S1 S1
S2 S2
S3 S3
A + B + C + a + b + c + d + e + f + g + h ≤ 152 m
A + C + h ≤ 80 m (A + C ≤ 55 m, h ≤ 25 m)
A + B + C ≤ 55 m
≤ 25 m
a + b + c + d + e + f + g + h ≤ 95 m
H ≤ 50 m (In case of that outdoor unit is set higher than indoor unit)
H ≤ 30 m (In case of that outdoor unit is set lower than indoor unit)
h1 + h2 ≤ 15 m
h2 ≤ 15 m
h3 ≤ 12 m
≤ 15 m
Outdoor unit
A
Branching joint
B
Branch box
C
Indoor Unit
D
R410A
Indoor units