Midea MDV-280(10)W/D2DN1(B)

R410A All DC Inverter V4+S Series 60Hz MCAC-VTSM-2015-09
92 Installation
 Table 1: Indoor unit main pipe selection (L1~L9) Unit: mm (in.)
Capacity of indoor unit
kW(kBtu/h)
Indoor unit main pipe mm (in.)
Gas pipe
Liquid pipe
Available branching
pipe assembly
A<16.6(56.6)
Φ15.9(Φ5/8)
Φ9.53(Φ3/8)
FQZHN-01D
(56.6)16.6≤A<23(78.5)
Φ19.1(Φ3/4)
Φ9.53(Φ3/8)
FQZHN-01D
(78.5)23≤A<33(112.6)
Φ22.2(Φ7/8)
Φ9.53(Φ3/8)
FQZHN-02D
(112.6)33≤A<46(157)
Φ28.6(Φ1-1/8)
Φ12.7(Φ1/2)
FQZHN-03D
(157)46≤A<66(225.2)
Φ28.6(Φ1-1/8)
Φ15.9(Φ5/8)
FQZHN-03D
(225.2)66≤A<92(313.9)
Φ31.8(Φ1-1/4)
Φ19.1(Φ3/4)
FQZHN-03D
(313.9)92≤A<135(460.6)
Φ38.1(Φ1-1/2)
Φ19.1(Φ3/4)
FQZHN-04D
(460.6)135≤A<180(614.2)
Φ41.3(Φ1-5/8)
Φ22.2(Φ7/8)
FQZHN-05D
(614.2)180≤A
Φ44.5(Φ1-3/4)
Φ25.4(Φ1)
FQZHN-05D
 Table 2: Main pipe selection (L1) Unit: in.(mm)
Model
Main pipe mm (in.)
When the equivalent length of all liquid pipes<90m
(295ft.)
When the equivalent length of all liquid pipes≥90m
(295ft.)
Gas pipe
Liquid pipe
The 1
st
branch pipe
Gas pipe
Liquid pipe
The 1
st
branch
pipe
8HP
Φ22.2(Φ7/8)
Φ9.53(Φ3/8)
FQZHN-02D
Φ22.2(Φ7/8)
Φ12.7(Φ1/2)
FQZHN-02D
10HP
Φ22.2(Φ7/8)
Φ9.53(Φ3/8)
FQZHN-02D
Φ25.4(Φ1)
Φ12.7(Φ1/2)
FQZHN-02D
12-14HP
Φ25.4(Φ1)
Φ12.7(Φ1/2)
FQZHN-02D
Φ28.6(Φ1-1/8)
Φ15.9(Φ5/8)
FQZHN-03D
16HP
Φ28.6(Φ1-1/8)
Φ12.7(Φ1/2)
FQZHN-03D
Φ31.8(Φ1-1/4)
Φ15.9(Φ5/8)
FQZHN-03D
18-22HP
Φ28.6(Φ1-1/8)
Φ15.9(Φ5/8)
FQZHN-03D
Φ31.8(Φ1-1/4)
Φ19.1(Φ3/4)
FQZHN-03D
24HP
Φ28.6(Φ1-1/8)
Φ15.9(Φ5/8)
FQZHN-03D
Φ31.8(Φ1-1/4)
Φ19.1(Φ3/4)
FQZHN-03D
26-32HP
Φ31.8(Φ1-1/4)
Φ19.1(Φ3/4)
FQZHN-03D
Φ38.1(Φ1-1/2)
Φ22.2(Φ7/8)
FQZHN-04D
34-48HP
Φ38.1(Φ1-1/2)
Φ19.1(Φ3/4)
FQZHN-04D
Φ38.1(Φ1-1/2)
Φ22.2(Φ7/8)
FQZHN-04D
50-64HP
Φ41.3(Φ1-5/8)
Φ22.2(Φ7/8)
FQZHN-05D
Φ44.5(Φ1-3/4)
Φ25.4(Φ1)
FQZHN-05D
66-72HP
Φ44.5(Φ1-3/4)
Φ25.4(Φ1)
FQZHN-05D
Φ54(Φ2-1/8)
Φ25.4(Φ1)
FQZHN-06D
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
Outdoor combination
2 units
3 units
Main pipe
L
g1g2
L
M
g1g2
G1
g3
Main pipe