Midea MDV-V105W/DVN1 User manual

Contents
Part 1 General Information.................................................................. 1
Part 2 Outdoor Units............................................................................ 9
Part 3 Installation ............................................................................... 49
Part 4 Troubleshooting……………………………………………………61
Manufacture reserves the right to discontinue, or change at any time, specifications or designs without
notices and without incurring obligations.

MCAC-VTSM-2014-09 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-2014-09
2General Information
1. Product Lineup
Outdoor Units
10.5kW Model 12~16kW Model
Model name
Dimension body
Inch (mm)
Net/Gross weight
lbs(kg)
Power supply
MDV-V105W/DVN1
Width:42-21/64 (1075)
Height: 38-1/32(966)
Depth: 15-19/32(396)
171.8/187.4(78/85)
208-230V-1ph ~60Hz
MDV-V120W/DVN1
Width:35-7/14 (900)
Height: 52-1/4(1327)
Depth: 15-3/4(400)
209.4/233.7(95/106)
208-230V-1ph ~60Hz
MDV-V140W/DVN1
209.4/233.7(95/106)
208-230V-1ph ~60Hz
MDV-V160W/DVN1
224.9/249.1(102/113)
208-230V-1ph ~60Hz

MCAC-VTSM-2014-09 R410AAll DC Inverter Mini VRF
General Information 3
2. Nomenclature
MDV-V120W/DVN1
*Note: the actual cooling capacity please refers to the nameplate.
Refrigerant
N1:R410A
Power supply
V: 208~230V-60Hz-1ph
D: 208~230V, 60Hz, 3ph
C: 380~415V, 60Hz, 3ph
Inverter Type
D: DC Inverter
W: Outdoor unit
Cooling Capacity (X100W)*
Inverter
Midea VRF

R410AAll DC Inverter Mini VRF MCAC-VTSM-2014-09
4General 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 7 zones with one outdoor unit. Such as villa, restaurant, school etc.
Midea offers a variety of indoor unit, more than 100 models of 15 types. Capacity ranges are from 1.8kW to
16kW. It is full compliance with residential and light commercial place. Our systems can operate up to 130% of
capacity which allows any system to be designed to the customers’and applications’needs.

MCAC-VTSM-2014-09 R410AAll DC Inverter Mini VRF
General Information 5
Compressor
(Twin Rotary) structure
3.2 High efficiency DC inverter compressor
All DC inverter Mini VRF adopt 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 ,
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 full 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-2014-09
6General 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. 5 indoor units for a 10.5kW outdoor unit installation
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
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.
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
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
45m(10.5kW)
60m (12~16kW)
Equivalent
50m(10.5kW)
70m (12~16kW)
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

MCAC-VTSM-2014-09 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-2014-09
8General Information
4. Indoor Units Lineup
Capacity
(×100W)
Capacity
(Btu/h)
Cassette type
One-way cassette
Two-way cassette
Compact
four-way
cassette
Four-way
cassette
18
6140
●
22
7500
●
●
●
28
9600
●
●
●
●
●
36
12300
●
●
●
●
●
45
15400
●
●
●
●
56
19100
●
●
●
71
24200
●
●
80
27300
●
90
30700
●
100
34100
●
112
38200
●
140
42600
●
Capacity
(×100W)
Capacity
(Btu/h)
Duct type
Low static pressure
duct
Medium static pressure duct
High static pressure duct
18
6140
●
22
7500
●
●
28
9600
●
●
36
12300
●
●
45
15400
●
●
56
19100
●
●
71
24200
●
●
80
27300
●
●
90
30700
●
●
100
34100
112
38200
●
●
140
42600
●
●
160
54600
●
Capacity
(×100W)
Capacity
(Btu/h)
Wall mounted
Ceiling & Floor
S panel
C panel
R panel
22
7500
●
●
28
9600
●
●
36
12300
●
●
●
45
15400
●
●
●
56
19100
●
●
●
71
24200
●
●
80
27300
●
●
90
30700
●
●
112
34100
●
140
38200
●
160
42600
●
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.

MCAC-VTSM-2014-09 R410AAll DC Inverter Mini VRF
Specifications & Performance 9
Part 2 Outdoor Units
1. Specifications..................................................................................... 10
2. Dimensions......................................................................................... 13
3. Service Space..................................................................................... 14
4. Piping Diagrams................................................................................. 15
5. Wiring Diagrams................................................................................. 16
6. Capacity Tables .................................................................................. 19
7. Electric Characteristics...................................................................... 51
8. Sound Levels ...................................................................................... 51
9. Operation Limits................................................................................. 52

R410AAll DC Inverter Mini VRF MCAC-VTSM-2014-09
10 Specifications & Performance
1. Specifications
Sale Model
MDV-V105W/DVN1
MDV-V120W/DVN1
Code
220095103400
220095101900
Power supply
V-Ph-Hz
208-230V-1Ph~60Hz
208-230V-1Ph~60Hz
Cooling
Capacity
kW
10.5
12
Btu/h
35800
40900
Input
kW
2.68
3.25
Heating
Capacity
kW
11.5
13.2
Btu/h
39200
45000
Input
kW
2.9
3.47
Max. input consumption
W
4800
5319
Max. current
A
20
29
Compressor
Model
TNB220FLHMC
TNB306FPGMC
Type
Rotary
Rotary
Brand
MITSUBISHI
MITSUBISHI
Capacity
Btu/h
24330
33710
Input
W
2200
3010
Rated current(RLA)
A
9.7
13.5
Crankcase
W
25
27
Refrigerant oil
gal(ml)
FV50S 0.053+0.177(200+670)
FV50S 0.230+0.166
(870+630)
Outdoor fan motor
Model
WZDK170-38G-1
WZDK100-38G
Type
DC motor
DC motor
Brand
Panasonic
Panasonic
Insulation class
E
E
Safe class
IP23
IP23
Input
W
200
2 x 100
Output
W
170
2 x 85
Rated current
A
1.6
2 x 0.9
Capacitor
uF
/
/
Speed
r/min
820
800
Outdoor fan
Material
ASG20
ASG20
Type
Axial fan
Axial fan
Diameter
in.(mm)
(22)560
20(508)
Height
in.(mm)
6-11/16(170)
6-11/16(170)
Outdoor coil
Number of rows
2
2
Tube pitch(a)x row
pitch(b)
in.(mm)
55/64 x 3/4(22 x19.05)
7/8 x3/4 (22 x 19.05)
Fin spacing
in.(mm)
1/16(1.6)
1/16(1.6)
Fin type (code)
Hydrophilic aluminum
Tube outside dia.and
type
in.(mm)
5/16(Ф7.94)
5/16(Ф7.94)
Inner groove tube
Inner groove tube
Coil length x height
in.(mm)
34-27/32 x 34-41/64(885 x 880)
50-1/4 x 34-1/4(1276 x 870)
Number of circuits
6
7
Outdoor air flow
CFM(m3/h)
3000(5100)
3531(6000)

MCAC-VTSM-2014-09 R410AAll DC Inverter Mini VRF
Specifications & Performance 11
Sale Model
MDV-V105W/DVN1
MDV-V120W/DVN1
Code
220095103400
220095101900
Outdoor sound level(sound pressure
level )
dB(A)
57
57
Outdoor unit
Dimension
(W x H x D)
in.(mm)
42-21/64 x38-1/32 x15-19/32
(1075x966x396)
35-7/14x52-1/4x15-3/4
(900x1327x400)
Packing
(W x H x D)
in.(mm)
44-3/32 x43-5/16 x17-1/8
(1120x1100x435)
40-9/16x57-5/16x17-1/8
(1030x1456x435)
Net/Gross weight
Lbs(kg)
171.9/187.3(78/85)
209.4/233.7 (95/106)
Refrigerant
Type
R410a
R410A
Charged volume
Lbs(kg)
6.6(3.0)
7.3(3.3)
Throttle type
Electronic expansion valve
Design pressure
MPa
4.4/2.6
Refrigerant piping
Liquid side
in.(mm)
Ф3/8(Ф9.53)
Ф3/8(Ф9.53)
Gas side
in.(mm)
Ф5/8(Ф15.9)
Ф5/8(Ф15.9)
Max. refrigerant
pipe length
ft.(m)
328(100)
328(100)
Max. difference in
level
ft.(m)
26(8)
26(8)
Connection wiring
Power wiring
mm2
3 core x 4.0
3 core x 4.0
Signal wiring
mm2
3 core shielded wire x 0.75
3 core shielded wire x 0.75
Ambient temperature
℉(℃)
Cooling 5~109.4℉(-15～43℃)Heating 5~80.6℉(-15～27℃)
Model
MDV-V140W/DVN1
MDV-V160W/DVN1
Code
220095101890
220095102980
Power supply
V-Ph-Hz
208-230V-1Ph~60Hz
208-230V-1Ph~60Hz
Cooling
Capacity
kW
14
15.5
Btu/h
47800
52900
Input
kW
3.95
4.52
Heating
Capacity
kW
15.4
17
Btu/h
52500
58020
Input
kW
4.16
4.77
Max. input consumption
W
6440
7100
Max. current
A
29
29
Compressor
Model
TNB306FPGMC
LNB42FSCMC
Type
Rotary
Rotary
Brand
MITSUBISHI
MITSUBISHI
Capacity
Btu/h
33710
47713
Input
W
3010
14573
Rated current(RLA)
A
13.5
24
Crankcase
W
25
20
Refrigerant oil
gal(ml)
FV50S 0.230+0.166
(870+630)
FV50S 0.36+0.05(1400+250)
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

R410AAll DC Inverter Mini VRF MCAC-VTSM-2014-09
12 Specifications & Performance
Model
MDV-V140W/DVN1
MDV-V160W/DVN1
Code
220095101890
220095102980
Outdoor fan motor
Capacitor
uF
/
/
Speed
r/min
800
800
Outdoor fan
Material
ASG20
ASG20
Type
Axial fan
Axial fan
Diameter
in.(mm)
20(508)
20(508)
Height
in.(mm)
6-11/16(170)
6-11/16(170)
Outdoor coil
Number of rows
2
2
Tube pitch(a)x row
pitch(b)
in.(mm)
7/8 x3/4 (22 x 19.05)
7/8 x3/4 (22 x 19.05)
Fin spacing
in.(mm)
1/16(1.6)
1/16(1.6)
Fin type (code)
Hydrophilic aluminum
Hydrophilic aluminum
Tube outside dia.and
type
in.(mm)
5/16(Ф7.94)
5/16(Ф7.94)
Inner groove tube
Inner groove tube
Coil length x height
in.(mm)
50-1/4 x 34-1/4(1276 x 870)
50-1/4 x 34-1/4(1276 x 870)
Number of circuits
7
7
Outdoor air flow
CFM(m3/h)
3531(6000)
3531(6000)
Outdoor sound level(sound pressure level )
dB(A)
57
57
Outdoor unit
Dimension
(W x H x D)
in.(mm)
35-7/14x52-1/4x 15-3/4(900x1327x400)
Packing
(W x H x D)
in.(mm)
40-35/64 x 57-21/64 x 17-1/8(1030 x1456 x435)
Net/Gross weight
Lbs(kg)
209.4/233.7 (95/106)
224.9/249.1(102/113)
Refrigerant
Type
R410A
R410A
Charged volume
Lbs(kg)
8.6 (3.9)
8.6 (3.9)
Throttle type
Electronic expansion valve
Design pressure
MPa
4.4/2.6
Refrigerant piping
Liquid side
in.(mm)
Ф3/8(Ф9.53)
Ф3/8(Ф9.53)
Gas side
in.(mm)
Ф5/8(Ф15.9)
Ф3/4(Ф19.1)
Max. refrigerant pipe
length
ft.(m)
328(100)
328(100)
Max. difference in
level
ft.(m)
26(8)
26(8)
Connection wiring
Power wiring
mm2
3 core x 4.0
3 core x 4.0
Signal wiring
mm2
3 core shielded wire x 0.75
3 core shielded wire x 0.75
Ambient
temperature
℉(℃)
Cooling 5~109.4℉(-15～43℃) Heating 5~80.6℉(-15～27℃)
Notes:
1. The cooling conditions: indoor temp.: 27℃DB (80.6℉), 19℃WB (66.2℉) outdoor temp.: 35℃DB (95℉) equivalent pipe length:
5m drop length: 0m.
2. The heating conditions: indoor temp.: 20℃DB (68℉), 15℃WB (44.6℉) outdoor temp.: 7℃DB (42.8℉) equivalent pipe length:
5m drop length: 0m.
3. Sound level: Anechoic chamber conversion value, measured at a point 3.28ft (1.0m) in front of the unit at a height of *m (1m
(3.28ft.)for 105 model,1.2m(3.94ft.) for 120~160 model ). During actual operation, these values are normally somewhat higher as
a result of ambient conditions.
4. The above data may be changed without notice for future improvement on quality and performance.

MCAC-VTSM-2014-09 R410AAll DC Inverter Mini VRF
Specifications & Performance 13
2. Dimensions
10.5kW 12kW/14kW/16kW
Unit:in.(mm)
38-1/32(966)
38-31/32(990)
42-21/64(1075)
24-9/16(624)
13-15/16(354)
13-15/64(336)
15-19/32(396)
14-13/32(366)

R410AAll DC Inverter Mini VRF MCAC-VTSM-2014-09
14 Specifications & Performance
3. Service Space
Unit:in. (mm)
>11-13/16
(300)
>23-5/8
(600)
>11-13/16
(300)
>
78-3/4
(2000)
(Wall or obstacle)
Maintain
channel
Air outlet
Air inlet
Air inlet
Single unit installation
>78-3/4(2000)
>11-13/16(300)
Parallel connect the two units or above
Parallel connect the front with rear sides
>23-5/8
(600)
>78-3/4
(2000)
>19-11/16
(500)
>118-1/18
(3000)
>118-1/18
(3000)
>11-13/16
(300)

MCAC-VTSM-2014-09 R410AAll DC Inverter Mini VRF
Specifications & Performance 15
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.
4-way valve

R410AAll DC Inverter Mini VRF MCAC-VTSM-2014-09
16 Specifications & Performance
5. Wiring Diagrams (For 10.5kW)

MCAC-VTSM-2014-09 R410AAll DC Inverter Mini VRF
Specifications & Performance 17
For 12/14/16kW

R410AAll DC Inverter Mini VRF MCAC-VTSM-2014-09
18 Specifications & Performance
6. Field Wiring