Midea V6R Series Manual page 91

V6R VRF 50/60Hz
Figure 3-4.10: Right ports merge example
4.6 Selection Example
The example below illustrates the piping selection procedure for a system consisting of three outdoor units (16HP + 14HP +
12HP) and 11 VRF indoor units and 2 HT hydro modules. The system's equivalent length of all liquid pipes is not in excess of
90m. Rooms install indoor unit N9, N10 and N11 need add refrigerant leak detection sensor.
Figure 3-4.12: Refrigerant piping selection example
12HP 16HP
14HP
g3 g2
M
LEGEND
Branch joint
Indoor unit
MS box
Header branch
HT hydro module
Legend
L1 Main pipe
L2 to L9 Indoor main pipes
a to 0 Indoor auxiliary pipes
A to E Indoor branch joints
L, M Outdoor branch joints
g1 to g3, G1 Outdoor connection pipes
N12 to N13 Hydronic module
MS1 to MS4 Mode switch box
Figures in parentheses indicate indoor unit capacity indexes.
Step 1: Select indoor auxiliary pipes
 Indoor units N1 to N5 and N11 are of capacity 14kW. Refer to Table 3-4.8. Indoor auxiliary pipes a to e and m are Φ15.9
/ Φ9.53.
 Indoor units N6 and N8 are of capacity 4.5kW. Refer to Table 3-4.8. Indoor auxiliary pipes g and l are Φ12.7 / Φ6.35.
146
g1
A
L
L1
G1
First branch
L2
B
L4
L3
MS1
a b c
（140）
N2
（140）
N1
Figure 3-4.11: Wrong ports merge example
E
L9
C
L5
L6
D
MS2
d e
（140）
N5
（140）
（140）
N3 N4
o
n
m
N11
（140）
MS4
l
L8
j
MS3
I
L7
Header
f
g
h
（45） （45）
N6 N7
N13
（140）
N12
（140）
N10
（160）
N9
k
（160）
i
（45）
N8