14
Multi V 5
Installation of Outdoor Units
7. Refrigerant piping system
7.1 Pipe Connection Method between outdoor unit/indoor unit
7.1.1 Heat Recovery System : 4 Outdoor Units
WARNING
•
Branch pipe can not be used after header
•
It is recommended that difference in length of the pipes connected to the indoor units (a~f) is minimized.
The large difference in pipe lengths, the more different performance between indoor units.
•
* : Serial connection of HR units : Capacity sum of indoor units
≤
230 kBtu/h
If the large capacity indoor units (Over 5 HP; using overØ15.88/Ø9.52) are installed, it should be used
the Valve Group setting.
•
Refer to the HR unit PCB part for the valve group control setting.
•
Piping length from outdoor branch to outdoor unit
≤
10m(32.8ft), equivalent length : max 13m(42.7ft)
(for 2 units combination or more)
Example : 12 Indoor Units connected
ⓐ
Outdoor Unit
ⓑ
Y branch
ⓓ
Indoor Units
E : Connection branch pipe between Outdoor units : ARCNB41
F : Connection branch pipe between Outdoor units : ARCNB31
G: Connection branch pipe between Outdoor units : ARCNB21
ⓗ
Header
ⓛ
HR Unit
• Case 1 ("a") : Maximum height is 30m(98.4ft) if you install with Y branch.
• Case 2 ("b") : Maximum height is 5m(16.4ft) in serial connection of HR units.
X
p
X
X
0 m
o
G
ess
1
2
3
4
A
C1
B
C2
C3
Q
X
Y
Y
Z
a
b
c
d
e
g
j
k
l
m
n
sealing
f
i
H
h
"a"
"b"
E
F
G
p
Y
p
[
p
Z
Master
Slave 1
Slave 2
[
Slave 3
ODU Capacity
Master ≥ Slave1 ≥ Slave 2 ≥ Slave 3
5
6
7
8
10
9
11
12
D
Summary of Contents for ARUM080LTE5
Page 1: ...Heat Recovery Heat Pump R410A 50Hz 60Hz 0CVV0 01E Replaces 0CVV0 01D P No MFL67474071 ...
Page 85: ...78 Multi V 5 Outdoor Units 4 Wiring Diagrams 4 1 8 10 12 HP UXA 1 Comp ...
Page 86: ...4 Wiring Diagrams 79 Multi V 5 Outdoor Units 4 2 14 16 HP UXB 1 Comp ...
Page 87: ...Multi V 5 4 Wiring Diagrams 80 Outdoor Units 4 3 18 20 22 24 26HP UXB 2 Comp ...
Page 766: ...Special Guide Multi V 5 1 Cautions for Refrigerant Leaks 2 Guide for installing at seaside ...
