Midea MDV-V120W/DRN1 Operating manual

3 phase, 380-415V, 50Hz
MDV-V120W/DRN1
MDV-V140W/DRN1
MDV-V160W/DRN1
MDV-V180W/DRN1
Model:
Technical Service Manual
Mini VRF

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF
Contents
Part 1 General Information .................................................................................1
Part 2 Specifications & Performance...............................................................10
Part 3 Installation ..............................................................................................54
Part 4 Troubleshooting.....................................................................................70

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF
General Information 1
Part 1 General Information
1. Product Lineup ..................................................................................... 2
2. Nomenclature........................................................................................ 3
3. Features................................................................................................. 4
4. Indoor Units Lineup.............................................................................. 8

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10
2 General Information
1. Product Lineup
Outdoor Units
Model name
Dimension body(mm)
Net/Gross weight (kg)
Power supply
MDV-V120W/DRN1
Width: 900
Height: 1327
Depth:400
95/106
380-415V-3ph~ 50Hz
MDV-V140W/DRN1
Width: 900
Height: 1327
Depth:400
95/106
380-415V-3ph~ 50Hz
MDV-V160W/DRN1
Width: 900
Height: 1327
Depth:400
102/113
380-415V-3ph~ 50Hz
MDV-V180W/DRN1
Width: 900
Height: 1327
Depth:400
107/118
380-415V-3ph~ 50Hz

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF
General Information 3
2. Nomenclature
MDV-V120W/DRN1
Refrigerant
N1: R410A
Power Supply
-- 220~240V, 50Hz, 1ph
R 380~415V, 50Hz, 3ph
Outdoor unit
Cooling Capacity (×100W )
Midea VRF
Inverter
DC Inverter

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10
4 General Information
3. Features
3.1 Wide application
The All DC Inverter Mini VRF system is a highly efficient solution for small commercial buildings requiring
heating and cooling of up to 9 zones with one outdoor unit. Such as villa, restaurant, school etc.
Midea offers various indoor units, more than 100 models of 15 types. Capacity ranges are from 1.5kW to 16
kW. It is all compliance with residential and light commercial place. Our systems can be operated up to 130%
of capacity which allows any system to be designed to the customers’and applications’needs.

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF
General Information 5
Compressor
(Twin Rotary) structure
3.2 High efficient DC inverter compressor
All DC inverter Mini VRF adopts highly intelligent inverter-driven compressor. This advanced technology
enables the output of the outdoor unit to be modulated by the real heat load demands..
This advanced system ensures precise temperature regulation and highly efficient energy usage, making a
significant contribution to the limiting the impact on the environment.
3.3 High performance heat exchanger
The new designed window fins enlarge the heat-exchanging area ,
which decrease the air resistance, save more power and enhance heat
exchange performance.
Hydrophilic film fins and inner-threaded copper pipes optimize heat
exchange efficiency.
3.4 Low-operating sound design
Optimally design fan shape and new designed discharge air grille and air deflector, making higher air volume
and lower operation sound.
3.5 Quick warm-up & cool-down design and less temperature fluctuation
Utilizing the inverter compressor benefits,
the system can reach All load quickly and
shorten warm-up or cool-down time for an
immediate comfortable air solution.
Less temperature fluctuation will create a
better living environment.
New fan
Air deflector
New grille
Highly Efficient DC Motor:
- Creative motor core design
- High density neodymium magnet
- Concentrated type stator
-Wider operating frequency range
Better balance and Extremely Low Vibration:
- Twin eccentric cams
- 2 balance weights
Highly Stable Moving Parts:
- Optimal material matching rollers and vanes
-Optimize compressor drive technology
- Highly robust bearings
-Compact structure
Fluctuation of room temperature
Cooling operation
2
1
Temp.
Time
Notn-inverter
Inverter
New design Original design
High efficiency inner-thread pipe,
enhance heat transfer.

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10
6 General Information
3.6 Wide operation temperature range
No matter in extremely cold winter when outdoor
temperature gets as low as -15°C or in hot summer
when temperature is up to 43°C, the Mini VRF
system will keep stable performance.
3.7 Flexible piping design
3.8 Flexible indoor unit’s connection
Mini VRF with intelligent control gives you independent zoning control with maximum flexibility.
A single outdoor unit supports up to nine indoor units, freeing up considerable space outside. Use your
backyard more wisely with much more space available created by less number of outdoor units.
Max. 6 indoor units for a 12kW outdoor unit installation
Max. 6 indoor units for a 14kW outdoor unit installation
Max. 7 indoor units for a 16kW outdoor unit installation
Max. 9 indoor units for a 18kW outdoor unit installation
3.9 Simple signal line connection
Installation is much easier as the communication wiring between indoor & outdoor units can be shared.
It’s easy for the user to retrofit the existing system with a centralized control by simply connecting to outdoor
units.
PQE & XYE, just only one group of communication wire of PQE,
achieved both of communication for indoor & outdoor unit and
network.
Reversible communication, central controller can be connected
from indoor side or outdoor side as you wish.
P Q E
P Q E P Q E P Q E P Q E
XY E X Y E
Piping Length
Permitted Value
Total piping length (Actual)
100m
Longest piping
length
Actual
60m
Equivalent
70m
The first branch joint to the
farthest IDU
20m
The IDU to the nearest branch pipe
15m
Level difference
between ODU~IDU
ODU up
30m
ODU down
20m
Level difference between IDU~IDU
8m
Longest
piping length
Level
difference
between
IDU~ODU
The IDU to the
nearest branch
pipe
The first branch
joint to the farthest
indoor unit
Level differece
between IDU~IDU

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF
General Information 7
3.10 Auto address setting function
The addresses of indoor units can be set automatically by outdoor unit.
Wired controller and wireless controller can enquire and modify the address of each indoor unit.
3.11 Easy piping connection
Offering four directions to connect pipes and wirings
to meet various installation requests.
3.12 Easy installation
The Mini VRF can be transported by elevator which makes
installation dramatically easy, and effectively reduces time
and labor thanks to the small size.
3.13 Easy maintenance
Forced cooling button makes outdoor unit run in cooling mode at
any condition, so it is very easy for you to charge refrigerant to the
system when it needs to be done. The self-diagnosis function
detects malfunctions in major locations in the system and displays
the type of malfunction and location. This allows service and maintenance
to be performed more efficiently.
3.14 Space saving
The Mini VRF units are more compact, resulting in significant savings in installation space. It is particularly
suitable for small offices, villas, shops, etc.
Outdoor unit can
distribute address
for indoor unit
automatically Shield signal wire
Wired and wireless controller
can enquire and modify address
of each IDU.
Right side
Upper side
Back side
Front side Bottom side
Front side Back side
Right side Bottom side
Fat pipe
Easy to transport

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10
8 General Information
4. Indoor Units Lineup
Capacity
(×100W)
Cassette unit
One-way cassette
Two-way cassette
Compact four-way
cassette
Four-way cassette
15
●
18
●
22
●
●
●
28
●
●
●
●
36
●
●
●
●
45
●
●
●
●
56
●
●
●
71
●
●
●
80
●
90
●
100
●
112
●
140
●
Capacity
(×100W)
Duct unit
Low static pressure duct
Medium static pressure duct
High static pressure duct
15
●
18
●
22
●
●
28
●
●
36
●
●
45
●
●
56
●
●
71
●
●
●
80
●
●
90
●
●
112
●
●
140
●
●
160
●

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF
General Information 9
Indoor units lineup
Capacity
(×100W)
Floor-standing/Ceiling & Floor/Console
Floor standing (exposed)
Floor standing
(concealed)
Ceiling & floor
console
22
●
●
●
28
●
●
●
36
●
●
●
●
45
●
●
●
●
56
●
●
●
71
●
●
●
80
●
●
●
90
●
112
●
140
●
160
●
Capacity
(×100W)
Wall mounted
Wall mounted
(S panel)
Wall mounted
(M panel)
Wall mounted
(R panel)
15
●
22
●
●
28
●
●
36
●
●
45
●
●
56
●
●
71
●
●
80
●
●
90
●
●
Note: If ODU connect only one IDU, the capacity of IDU should be not more than ODU.
If ODU connect more than one IDU, the capacity of each IDU should be not more than 8kW for refrigerant uniform distribution.
Due to continuous improvement, specifications are subject to change without prior notice.

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10
10 Specifications&Performance
Part 2 Outdoor Units
1. Specifications......................................................................................11
2. Dimensions......................................................................................... 14
3. Service Space..................................................................................... 15
4. Piping Diagrams ................................................................................. 16
5. Wiring Diagrams................................................................................. 17
6. Field Wiring......................................................................................... 19
7. Capacity Tables .................................................................................. 20
8. Electric Characteristics...................................................................... 52
9. Sound Levels ...................................................................................... 53
10. Operation Limits............................................................................... 53

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF
Specifications&Performance 11
1. Specifications
Sale Model
MDV-V120W/DRN1
MDV-V140W/DRN1
Power supply
V-Ph-Hz
380-415V-3N~50Hz
380-415V-3N~50Hz
Cooling
Capacity
kW
12.3
14.0
Input
kW
3.25
3.95
EER
kW/ kW
3.78
3.54
Heating
Capacity
kW
13.2
15.4
Input
kW
3.47
4.16
COP
kW/ kW
3.80
3.7
Compressor
Model
TNB306FPNMC
TNB306FPNMC
Type
Rotary
Rotary
Brand
MITSUBISHI
MITSUBISHI
Capacity
Btu/h
33720
33720
Input
W
3010
3010
Rated current(RLA)
A
9.3
9.3
Crankcase
W
27
27
Refrigerant oil
ml
FV50S 870+630ml
FV50S 870+630ml
Outdoor fan
motor
Model
WZDK100-38G
WZDK100-38G
Type
DC motor
DC motor
Brand
Panasonic
Panasonic
Insulation class
E
E
Safe class
IP23
IP23
Input
W
2 x 100
2 x 100
Output
W
2 x 85
2 x 85
Rated current
A
2 x 0.9
2 x 0.9
Capacitor
uF
/
/
Speed
r/min
800
800
Outdoor fan
Material
ASG20
ASG20
Type
Axial fan
Axial fan
Diameter
mm
508
508
Height
mm
170
170
Outdoor coil
Number of rows
2
2
Tube pitch(a)x row
pitch(b)
mm
22 x 19.05
22 x 19.05
Fin spacing
mm
1.6
1.6
Tube outside dia.and type
mm
Ф7.94
Ф7.94
Inner groove tube
Inner groove tube
Coil length x height
mm
1276 x 870
1276 x 870
Number of circuits
7
7
Outdoor air flow
m3/h
6000
6000
Outdoor sound level(sound pressure level )
dB(A)
57
57
Outdoor Unit
Dimension(W x H x D)
mm
900 x 1327 x 400
900 x 1327 x 400
Packing (W x H x D)
mm
1030 x 1456 x 435
1030 x 1456 x 435
Net/Gross weight
kg
95/106
95/106
Refrigerant
Type
R410A
R410A
Charged volume
g
3300
3900

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10
12 Specifications&Performance
Throttle type
Electronic expansion valve
Design pressure
MPa
4.4/2.6
Refrigerant
piping
Liquid side/ Gas side
mm
Ф9.53/Ф15.9
Ф9.53/Ф15.9
Max. refrigerant pipe length
m
100
100
Max. difference in level
m
8
8
Connection
wiring
Power wiring
mm2
5 core x2.5
5 core x2.5
Signal wiring
mm2
3 core shielded wire x
0.75
3 core shielded wire x
0.75
Ambient temp
℃
（Cooling -15～43）
（Heating -15～27）
（Cooling -15～43）
（Heating -15～27）
Sale Model
MDV-V160W/DRN1
MDV-V180W/DRN1
Power supply
V-Ph-Hz
380-415V-3N~50Hz
380-415V-3N~50Hz
Cooling
Capacity
kW
15.5
17.5
Input
kW
4.52
5.3
EER
kW/ kW
3.43
3.3
Heating
Capacity
kW
17.0
19.0
Input
kW
4.77
5.0
COP
kW/ kW
3.56
3.8
Compressor
Model
LNB42FSAMC
LNB42FSAMC
Type
Rotary
Rotary
Brand
MITSUBISHI
MITSUBISHI
Capacity
Btu/h
47700
47700
Input
W
4240
4270
Rated
current(RLA)
A
12
12
Crankcase
W
25
25
Refrigerant oil
ml
FV50S 1400ml
FV50S 1400ml
Outdoor fan
motor
Model
WZDK100-38G
WZDK100-38G
Type
DC motor
DC motor
Brand
Panasonic
Panasonic
Insulation class
E
E
Safe class
IP23
IP23
Input
W
2 x 100
2 x 100
Output
W
2 x 85
2 x 85
Rated current
A
2 x 0.9
2 x 0.9
Capacitor
uF
/
/
Speed
r/min
800
800
Outdoor fan
Material
ASG20
ASG20
Outdoor fan
Type
Axial fan
Axial fan
Diameter
mm
508
508
Height
mm
170
170
Outdoor coil
Number of rows
2
2.5
Tube pitch(a)x
row pitch(b)
mm
22 x 19.05
22 x 19.05
Fin spacing
mm
1.6
1.6
Tube outside
dia.and type
mm
Ф7.94
Ф7.94
Inner groove tube
Inner groove tube

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF
Specifications&Performance 13
Notes:
1. The cooling conditions: indoor temp.: 27℃DB (80.6℉), 19℃WB (66.2℉) outdoor temp.: 35℃DB (95℉), 24℃WB (75.2℉)
equivalent pipe length: 5m drop length: 0m.
2. The heating conditions: indoor temp.: 20℃DB (68℉), 15℃WB (59℉) outdoor temp.: 7℃DB (44.6℉), 6℃WB (42.8℉)
equivalent pipe length: 5m drop length: 0m.
3. Sound level: Anechoic chamber conversion value, measured at a point 1 m in front of the unit at a height of *m(1.2m for
120~180 model). During actual operation, these values are normally somewhat higher as a result of ambient conditions.
4. The aboved datas may be changed without notice for future improvement on quality and performance.
Coil length x
height
mm
1276 x 870
1276 x 870
Number of
circuits
7
12
Outdoor air flow
m3/h
6000
6800
Outndoor sound level(sound
pressure level )
dB(A)
57
59
Outdoor unit
Dimension
(W x H x D)
mm
900 x 1327 x 400
900 x 1327 x 400
Packing
(W x H x D)
mm
1030 x 1456 x 435
1030 x 1456 x 435
Net/Gross weight
kg
102/113
107/118
Refrigerant
Type
R410A
R410A
Charged volume
g
3900
4500
Throttle type
Electronic expansion valve
Design pressure
MPa
4.4/2.6
4.4/2.6
Refrigerant
piping
Liquid side/ Gas
side
mm
Ф9.53/Ф19.1
Ф9.53/Ф19.1
Max. refrigerant
pipe length
m
100
100
Max. difference in
level
m
8
8
Connection
wiring
Power wiring
mm2
5 core x2.5
5 core x2.5
Signal wiring
mm2
3 core shielded wire x 0.75
3 core shielded wire x 0.75
Ambient temp
℃
（Cooling -15～43）
（Heating -15～27）
（Cooling -15～43）
（Heating -15～27）

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10
14 Specifications&Performance
2. Dimensions
H
A
B
C
D
E
F
MODEL
(kW)
900 600 360400 1327
（unit：mm）
348
12/14/
16/18
AB E D GFC
320
H
——

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF
Specifications&Performance 15
3. Service Space
>300
>600
>300
>
2000
(Wall or obstacle)
Maintain
channel
Air outlet
Air inlet
Air inlet
Single unit installation
>600
>2000
>300
Parallel connect the two units or above
>2000 >500 >3000 >3000 >300
Parallel connect the front with rear sides

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10
16 Specifications&Performance
4. Piping Diagrams
High pressure
switch
Oil seperator
Oil return
capilary
Compressor
Low pressure
switch Low pressure liquid
accumulator can
Condensor High pressure
liquid
accumulator
can
Electronic
expansion
valve
Electronic
expansion
valve
Evaporator
Oil separator: used to separate oil from high pressure & temperature gas refrigerant, which is pumped out
from compressor. It makes the oil return back to each compressor very soon.
Low pressure liquid receiver & High pressure liquid receiver: It is used to store the liquid refrigerant and
oil; it can protect the compressor from liquid hammer.
4-way valve: Closed in cooling mode and open in heating mode
Electronic expansion valve: The opening is of the valve is regulated according to the discharge air
temperature of compressor, used to regulating refrigerant flow.
High Pressure Switch: When the discharge pressure of compressor is 4.2Mpa or higher, the protection
switch will be triggered, and if the discharge pressure is down to 3.3MPa, the protection switch will be
recovered.
Low Pressure Switch: When thegas pressureback to compressor is 0.14Mpa or lower, the protection switch
will be triggered, and if the discharge pressure is down to 0.3MPa, the protection switch will be recovered.

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF
Specifications&Performance 17
5. Wiring Diagrams（For 12-16kW）