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For JR8V combinable series
W2
W1
g2
g1
L
Pipe
Branch
Indoor Unit
Select indoor main pipes and indoor branch B to J
The indoor units (N4 and N5) downstream of indoor
branch E have a total capacity of 16*2=32kW. Indoor
main pipe L5 is Φ22.2 / Φ9.52. Indoor branch joint E
is EVRI-BP2.
The indoor units (N3 to N5) downstream of indoor
branch D have a total capacity of 16*3=48kW. Indoor
main pipe L4 is Φ28.6 / Φ15.9. Indoor branch joint
D is EVRI-BP3.
The indoor units (N2 to N5) downstream of indoor
branch C have a total capacity of 16*4=64kW. Indoor
main pipe L3 is Φ28.6 / Φ15.9. Indoor branch joint
C is EVRI-BP3.
The indoor units (N1 to N5) downstream of indoor
branch B have a total capacity of 16*5=80kW. Indoor
main pipe L2 is Φ31.8/Φ19.1. Indoor branch joint B
is EVRI-BP3.
The indoor units (N10 and N11) downstream of
indoor branch J have a total capacity of 5.6+2.8= 8.4
kW. Indoor main pipe L10 is Φ15.9/Φ9.52. Indoor
branch joint J is EVRI-BP1.
The indoor units (N9 to N11) downstream of indoor
branch I have a total capacity of 8.4+11.2=19.6 kW.
Indoor main pipe L9 is Φ19.1/Φ9.52. Indoor branch
joint I is EVRI-BP1.
The indoor units (N8 to N11) downstream of indoor
branch H have a total capacity of 19.6+14=33.6 kW.
Indoor main pipe L8 is Φ28.6/Φ12.7. Indoor branch
joint H is EVRI-BP3.
The indoor units (N7 to N11) downstream of indoor
branch G have a total capacity of 33.6+16=49.6 kW.
Indoor main pipe L7 is Φ28.6/Φ15.9. Indoor branch
joint G is EVRI-BP3.
The indoor units (N6 to N11) downstream of indoor
branch F have a total capacity of 49.6+16=65.6 kW.
Indoor main pipe L6 is Φ28.6/Φ15.9. Indoor branch
joint F is EVRI-BP3.
L3
L2
C
L1
B
A
L6
a
b
N1(160)
N2(160)
F
L8
L7
H
G
f
g
N6(160)
N7(160)
24
L5
L4
E
D
e
d
c
N3(160)
N4(160)
N5(160)
L10
L9
J
I
j
h
i
N8(140)
N9(112)
N10(56)
Select the indoor auxiliary connection pipe a to k
The capacity of indoor units N1 to N9 is larger than
5.6kW, so the indoor auxiliary connection pipe a to i
is Φ15.9/Φ9.52.
The capacity of indoor units N10 to N11 is equal or
less than 5.6kW, so the indoor auxiliary connection
pipe j to k isΦ12.7/Φ6.35.
Select main pipe (L1) and first indoor branch A
The indoor units (N1 to N11) downstream of indoor
branch joint A have a total capacity of 80+65.6 =
145.6kW. The system's equivalent length of all liquid
pipes is less than 90m. The total capacity of the
outdoor units is 28 + 24= 52HP. Main pipe L1 is Φ
38.1/Φ19.1. First Indoor branch A is EVRI-BP4.
Select outdoor connection pipes (g1 and g2) and
outdoor branch (L)
There are two outdoor units in the system. The
master unit is 32HP (900), the slave unit is 20HP
(560). Outdoor connection pipes g1 isΦ38.1 / Φ19.1,
g2 is Φ31.8 / Φ 15.9. Outdoor branch L is EVRO-
BP2.
k
N11(28)
Figure 4.9
V.1
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