Midea Mini VRF MDV-V105W/DN1 Technical & Service Manual page 73

R410A All DC Inverter Mini VRF
4.3 Refrigerant pipe selection
The first connecting method
The second connecting method
Outdoor Unit(Take Model 160 for example)
L
1
A
The first Line Branch Pipe
Pipe definition
Main pipe
The main pipes of indoor unit
The branch pipes of indoor unit
Indoor unit branch pipes components
Note: The distance between the first branch to the last indoor unit is more than 15m, choose the second connecting method. The
pipe between the indoor units to the closest branch must be less than 15m.
Table 1: Indoor unit branch pipes selection (a~f)
A: Capacity of indoor units (kW)
A (kW)
Wall mounted 1.5~4.5
Wall mounted 5.6
Four way cassette type 2.2~4.5
Four way cassette type 5.6~8.0
One way cassette type 1.8~4.5
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Outdoor Unit
L2
L1
A
a
The first Line Branch Pipe
N
1
(28)
a
L
2
B
b N
2
(28)
L
3
c
L
4
D
C
d
L
5
E
f
L4
L3
D
C
B
d
c
b
intdoor Units
N
3 Pipe connecting position
(28)
N
4
(28)
e
N
N
5
6
(28)
(22)
The pipe between outdoor
units to the first branch of
indoor unit.
The pipe after the first branch
does not direct connect with
the indoor unit.
The pipe after the branch
connects with the indoor unit.
The pipes connect with the
main pipe, the branch pipe
and the main pipe of indoor
unit.
Gas Side(Φ)
12.7(Flaring nut)
15.9(Flaring nut)
12.7(Flaring nut)
15.9(Flaring nut)
12.7(Flaring nut)
f
L5
E
e
Liquid Side(Φ)
6.4(Flaring nut)
9.53(Flaring nut)
6.4(Flaring nut)
9.5(Flaring nut)
6.4(Flaring nut)
MCAC-VTSM-2016-10
Code
L1
L2～L5
a,b,c,d,e,f
A,B,C,D,E
Installation