Midea V4 Plus S Series Service Manual page 94

R410A All DC Inverter V4+S Series 60Hz
 Table 1: Indoor unit main pipe selection (L1~L9) Unit:
Capacity of indoor unit
kW(kBtu/h)
A<16.6(56.6)
(56.6)16.6≤A<23(78.5)
(78.5)23≤A<33(112.6)
(112.6)33≤A<46(157)
(157)46≤A<66(225.2)
(225.2)66≤A<92(313.9)
(313.9)92≤A<135(460.6)
(460.6)135≤A<180(614.2)
(614.2)180≤A
 Table 2: Main pipe selection (L1) Unit: in.(mm)
When the equivalent length of all liquid pipes<90m
Model
Gas pipe
Φ22.2(Φ7/8)
8HP
Φ22.2(Φ7/8)
10HP
Φ25.4(Φ1)
12-14HP
Φ28.6(Φ1-1/8)
16HP
Φ28.6(Φ1-1/8)
18-22HP
Φ28.6(Φ1-1/8)
24HP
Φ31.8(Φ1-1/4)
26-32HP
Φ38.1(Φ1-1/2)
34-48HP
Φ41.3(Φ1-5/8)
50-64HP
Φ44.5(Φ1-3/4)
66-72HP
Note: the main pipe L1 can be selected form table1 or table2, the larger size should be finally selected

Outdoor unit branch pipe assembly
No. of outdoor units
2 units
3 units
92
Gas pipe
Φ15.9(Φ5/8)
Φ19.1(Φ3/4)
Φ22.2(Φ7/8)
Φ28.6(Φ1-1/8)
Φ28.6(Φ1-1/8)
Φ31.8(Φ1-1/4)
Φ38.1(Φ1-1/2)
Φ41.3(Φ1-5/8)
Φ44.5(Φ1-3/4)
(295ft.)
The 1
Liquid pipe
branch pipe
Φ9.53(Φ3/8)
FQZHN-02D
Φ9.53(Φ3/8)
FQZHN-02D
Φ12.7(Φ1/2)
FQZHN-02D
Φ12.7(Φ1/2)
FQZHN-03D
Φ15.9(Φ5/8)
FQZHN-03D
Φ15.9(Φ5/8)
FQZHN-03D
Φ19.1(Φ3/4)
FQZHN-03D
Φ19.1(Φ3/4)
FQZHN-04D
Φ22.2(Φ7/8)
FQZHN-05D
Φ25.4(Φ1)
FQZHN-05D
mm (in.)
Indoor unit main pipe mm (in.)
Liquid pipe
Φ9.53(Φ3/8)
Φ9.53(Φ3/8)
Φ9.53(Φ3/8)
Φ12.7(Φ1/2)
Φ15.9(Φ5/8)
Φ19.1(Φ3/4)
Φ19.1(Φ3/4)
Φ22.2(Φ7/8)
Φ25.4(Φ1)
Main pipe mm (in.)
When the equivalent length of all liquid pipes≥90m
st
Gas pipe
Φ22.2(Φ7/8)
Φ25.4(Φ1)
Φ28.6(Φ1-1/8)
Φ31.8(Φ1-1/4)
Φ31.8(Φ1-1/4)
Φ31.8(Φ1-1/4)
Φ38.1(Φ1-1/2)
Φ38.1(Φ1-1/2)
Φ44.5(Φ1-3/4)
Φ54(Φ2-1/8)
Outdoor combination
g2 g1
g3 g2
L
MCAC-VTSM-2015-09
Available branching
pipe assembly
FQZHN-01D
FQZHN-01D
FQZHN-02D
FQZHN-03D
FQZHN-03D
FQZHN-03D
FQZHN-04D
FQZHN-05D
FQZHN-05D
(295ft.)
The 1
Liquid pipe
Φ12.7(Φ1/2)
FQZHN-02D
Φ12.7(Φ1/2)
FQZHN-02D
Φ15.9(Φ5/8)
FQZHN-03D
Φ15.9(Φ5/8)
FQZHN-03D
Φ19.1(Φ3/4)
FQZHN-03D
Φ19.1(Φ3/4)
FQZHN-03D
Φ22.2(Φ7/8)
FQZHN-04D
Φ22.2(Φ7/8)
FQZHN-04D
Φ25.4(Φ1)
FQZHN-05D
Φ25.4(Φ1)
FQZHN-06D
.
Main pipe
L
g1
Main pipe
M
G1
st
branch
pipe
Installation