System Configuration; Piping Limitation And Pipe Size - Fujitsu aoyg45lbt8 Installation Manual

41

SYSTEM CONFIGURATION

41 11

Piping limitation and Pipe size

H1
Pipe limitation
Maximum total equivalent pipe length
Between outdoor unit and the farthest indoor unit
Between outdoor unit and branch boxes
Between branch box and indoor unit
Between outdoor unit and the first separation tube
Between outdoor unit and branch box (when there is no separation tube)
Between outdoor unit and indoor unit
Between outdoor unit and branch box
Between branch box and branch box
Between indoor unit and indoor unit
Pipe size selection
Between outdoor unit and first separation tube
Between first separation tube and second
separation tube
Between separation tube and branch box
Between branch box and indoor unit
9379069366_IM.indb 6
Outdoor
Unit
a
H2
d
(Primary)
Branch Box
g
f
Indoor
Indoor
Unit2
Unit1
Diagram
a
b
c, d, e
f, g, h, i,
j, k, l, m
Separation Tube
b
e
(Secondary1)
Branch Box
H3
i
j k
Indoor
Unit4
Indoor
Indoor
h
Unit5
H4
Indoor
Unit3
Total
Each unit
Condition
(Model code of indoor unit)
―
―
―
7, 9, 12
14, 18
24
c
(Secondary2)
Branch Box
l
m
Indoor
Unit6 Unit7
Indoor
Unit8
Limitation
Diagram
m
115 or less
70 or less a + b + c + m
55 or less a + b + c + d + e
60 or less f + g + h + i + j + k + l + m
Between 3-15 f, g, h, i, j, k, l, m
5 or more
5 or more
30 or less
30 or less
15 or less
15 or less
Gas pipe Liquid pipe
(mm (in1)) (mm (in1))
Φ15.88 (5/8) Φ9.52 (3/8)
Φ15.88 (5/8) Φ9.52 (3/8)
Φ15.88 (5/8) Φ9.52 (3/8)
Φ9.52 (3/8) Φ6.35 (1/4)
Φ12.70 (1/2) Φ6.35 (1/4)
Φ15.88 (5/8) Φ6.35 (1/4)
Total
a
a+d
H1
H2
H3
H4
En-2
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