mundoclima CL23269 User manual

 
Mini MVD V4+ DC Inverter
CL23269 to CL23273
02/08/16
www.mundoclima.com
MVD
Service manual
English
(20 to 45kW)

General Information 1
Part 1 General Information
1. Product lineup.........................................................................................2
2. Features...................................................................................................2
3. Indoor units lineup..................................................................................6
Service manual
Mini MVD V4+ (20 to 45kW)

2 General Information
1. Product lineup
Model
Capacity
External appearance
Power Supply
MVD-V200W/DRN1
20kW (7HP)
380-415V-3N~50Hz
MVD-V224W/DRN1
22.4kW (8HP)
MVD-V260W/DRN1
26kW (9HP)
MVD-V400W/DRN1
40kW (14HP)
MVD-V450W/DRN1
45kW (16HP)
2. Features
2.1 Wide application range
2.1.1 Wide capacity range
The Capacity range of side discharge type is from 20kW to 45kW, which is designed to optimize performance
and better match varieties of application requirement. Especially, the integrated designed V4+I series is focus
on provide better air conditioning system solution for the small and middle-sized buildings in the global market.
2.1.2 Flexible indoor units connection
Model
Max. quantity of connectable indoor units
MVD-V200W/DRN1
10
MVD-V224W/DRN1
11
MVD-V260W/DRN1
12
MVD-V400W/DRN1
14
MVD-V450W/DRN1
15
2.1.3 Flexible piping design
Piping length Permitted value (m)
20-26kW 40-45kW
Actual total piping length 120 250
Longest piping Actual length 60 100
Equivalent length 70 120
Equivalent piping length from the farthest indoor unit to the first indoor
branch joint 20 40
The indoor unit to the nearest branch joint 15 15
Level difference between indoor and
outdoor units
Outdoor unit up 20 20
Outdoor unit down 30 30
Level difference between indoor units 8 8
Service manual
Mini MVD V4+ (20 to 45kW)

General Information 3
2.2 High efficiency
2.2.1 High efficiency DC inverter compressor
High efficiency DC inverter twin rotary compressor
2.2.2 High efficiency DC motor
According to the running load and pressure, it controls the speed of DC fan to achieve the minimum power
consumption.
2.2.3 High efficiency 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.
Compressor
(TwinRotary) structure
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
20
40
60
80
100
200
1000
45%
Motor speed (RPM)
Efficiency (%)
AC motor
DC motor
Service manual
Mini MVD V4+ (20 to 45kW)

4 GeneralInformation
2.3 Enhanced comfort
2.3.1 Intelligent soft start technology
2.3.2 Night silent operation mode
Midea's Night Silent Mode feature which is easily set on the PCB board allows the unit to be set to
vary time options during Non-Peak and Peak operation time optimizing the units noise output.
Night silent operation will be activated X hours after the peak temperature during daytime, and it
will go back to normal operation after Y hours.
Model 1
→ X: 6 hours, Y: 10 hours Model 2 → X: 8 hours, Y: 10 hours
Model 3
→ X: 6 hours, Y: 12 hours Model 4 → X: 8 hours, Y: 8 hours
Notes:
This function can be activated by setting at site. Temperature (load) curve shown in the graph is just an example.
2.3.3 Intelligent defrosting raises heat capacity
noise
08:00
100
50
14:00 22:00 08:00
Peak value of ambient temp.
Noise dB Load % Capacity %
8hrs 10hrs
Night silent Mode
Max.-10dB(10Hp)
8hrs 10hrs
Night silent Mode
Max.-10dB(10Hp)
End Start EndStart
defrost
DC inverter compressor soft start function reduces strike to the
electric network. This kind of high-performance and low sound scroll
compressor operates at a faster rate when starting, reducing start-up
time. It also helps the unit to quickly adjust the room temperature to
the set level.
Service manual
Mini MVD V4+ (20 to 45kW)

General Information 5
2.4 Easy installation and service
2.4.1Compact design for effective use of space
2.4.2 Space saving design
The side discharge type is slimmer and more compact,
resulting in significant savings in installation space.
2.4.3 Simple signal line connection
Installation is easier as communication wiring can be shared by indoor & outdoor units. It’s easy for the user to
retrofit the existing system with a centralized control by simply connecting to the outdoor units.
2.4.4 Auto addressing
2.4.5 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.
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.
PQE
PQE PQE PQE PQE
X YE XYE
Outdoor unit can
distribute address
for indoor unit
automatically
Shield signal wire
Wired and wireless controller
can enquire and modify address
of each IDU.
Compact size and light weight design minimizes the installation
footprint, reduces the installation floor load, and easier for
transportation. For some projects the units can even be transported
through the elevator or forklift, lessen access problem at the jobsite.
Service manual
Mini MVD V4+ (20 to 45kW)

R410A DC Inverter VRF V4 Plus Individual Series Side Discharge Type 50Hz
6 GeneralInformation
3. Indoor units lineup
Capacity
(×100W)
Cassette type
One-way cassette
Two-way cassette
Compact four-way
cassette
Four-way cassette &
Four-way cassette
silent type
18
22
28
36
45
56
71
80
90
100
112
140
Capacity
(×100W)
Duct type
Low static
pressure duct
A5 duct
High static pressure duct
18
22
28
36
45
56
71
80
90
112
140
160
200
250
280
400
450
560
Service manual
Mini MVD V4+ (20 to 45kW)

General Information 7
Indoor units lineup
Capacity
(×100W)
Floor-standing/Ceiling & Floor/Console
Cased floor-standing
Uncased floor-standing
Ceiling & floor
console
22
28
36
45
56
71
80
90
112
140
160
Capacity
(×100W)
Wall mounted/Fresh air processing unit
Wall mounted
(S panel)
Wall mounted
(C panel)
Wall mounted
(R panel)
Fresh air processing unit
22
28
36
45
56
71
80
90
125
140
200
250
280
Note:
Due to continuous improvement, specifications are subject to change without prior notice.
Service manual
Mini MVD V4+ (20 to 45kW)

8 Specifications & Performance
Part 2 Specifications & Performance
1. Specifications..........................................................................................9
2. Dimensions............................................................................................13
3. Service space........................................................................................14
4. Piping diagrams ....................................................................................16
5. Wiring diagram......................................................................................18
6. Electric characteristics.........................................................................20
7. Capacity tables......................................................................................21
8. Sound levels..........................................................................................61
9. Accessories...........................................................................................63
Service manual
Mini MVD V4+ (20 to 45kW)

Specifications & Performance 9
1. Specifications
Model
MVD-V200W/DRN1
MVD-V224W/DRN1
MVD-V260W/DRN1
Power supply
V-Ph-Hz
380-415/3/50
Cooling
Capacity
kW
20
22.4
26
Power input
kW
6.1
6.8
7.6
EER
3.28
3.29
3.42
Heating
Capacity
kW
22
24.5
28.5
Power input
kW
6.1
5.9
6.8
COP
3.61
4.15
4.19
Compressor
Model
LNB42FSAMC
LNB53FCAMC
Type
Rotary
Brand
MITSUBISHI
Quantity
1
Capacity
kW 13.98
16.86
16.86
Input
kW 4.27
5.2
5.2
Crankcase heater
W 25
Refrigerant oil type
FV50S
Refrigerant oil charge
ml 1400+1300
1700+1500
1700+1500
Outdoor fan
motor
Model
WZDK170-38G-1
Type
DC motor
Quantity
2
Brand
Panasonic
Insulation class
E
Safe class
IP×4
Input
W
260(up)/200(down)
250(up)/185(down)
250(up)/185(down)
Output
W
210(up)/160(down)
200(up)/150(down)
200(up)/150(down)
Rated current
A
2.1(up)/1.7(down)
1.7(up)/1.4(down)
1.7(up)/1.4(down)
Outdoor fan
Material
ASG20
Type
Axial fan
Quantity
mm
2
Diameter
mm
560
Height
170
Outdoor coil
Number of rows
1.6
2
2
Tube pitch(a)×
row pitch(b)
mm
21×19.4
Fin spacing
mm
1.5
Fin type
Hydrophilic fin
Tube outside
diameter
mm
Ф7
Tube type
Inner groove tube
Coil length×height
mm
1090×756
1080×756
1080×756
Number of circuits
12
18
18
Outdoor air flow
m3/h
10999
10494
10494
Sound pressure level
dB(A)
59
59
60
Connectable
indoor unit
Total capacity
%
50-130
Max. quantity
10
11
12
Outdoor uint
Net dimension
(W×H×D)
mm
1120×1558×528
Service manual
Mini MVD V4+ (20 to 45kW)

10 Specifications & Performance
Packing
(W×H×D)
mm
1270×1720×565
Net/Gross weight
mm
137/153
146.5/162.5
147/163
Refrigerant
Type
R410A
Factory charged
kg
4.8
6.2
6.2
Throttle type
Electronic expansion valve
Design pressure (Hi/Lo)
MPa
4.4/2.6
Refrigerant
piping
Liquid pipe
mm
Ф9.53
Ф9.53
Ф9.53
Gas pipe
mm
Ф19.1
Ф19.1
Ф22.2
Ambient temp.
range
Cooling
oC
-15~46
Heating
oC
-15~24
Notes:
Capacities are based on the following conditions:
Cooling: Indoor temperature 27oC DB/19 oC WB; Outdoor temperature 35 oC DB/24 oC WB.
Heating: Indoor temperature 20 oC DB/15 oC WB; Outdoor temperature 7 oC DB/6 oC WB.
Piping length: Interconnecting piping length 7.5m, level difference of zero.
Sound values are measured in a semi-anechoic room, at a position 1m in front of the unit and 1.3m above the floor.
The above data may be changed without notice for future improvement on quality and performance.
Service manual
Mini MVD V4+ (20 to 45kW)

Specifications & Performance 11
Specifications
Model
MVD-V400W/DRN1
MVD-V450W/DRN1
Power supply
V-Ph-Hz
380-415/3/50
Cooling
Capacity
kW
40.0
45.0
Power input
kW
11.9
13.6
EER
3.35
3.32
Heating
Capacity
kW
45.0
50.0
Power input
kW
11.1
12.7
COP
4.05
3.93
Compressor
Model
LNB42FSAMC
LNB53FCAMC
Type
Rotary
Brand
MITSUBISHI
Quantity
2
Capacity
kW 13.98×2
16.86×2
Input
kW 4.27×2
5.2×2
Crankcase heater
W 25×2
Refrigerant oil type
FV50S
Refrigerant oil charge
ml 1400×2+2500
1700×2+3600
Outdoor fan
motor
Model
WZDK560-38G(B)+WZDK560-38G(B)
Type
DC+DC
Quantity
2
Brand
Nidec,panasonic,welling
Insulation class
DC: E/DC:E
Safe class
IP44
Input
W
580/580
Output
W
560560
Rated current
A
3.84+3,84
Outdoor fan
Model
Plastic
Type
Axial fan
Quantity
mm
2
Diameter
mm
700
Height
200
Outdoor coil
Number of rows
2
2.7
Tube pitch(a)×row pitch(b)
mm
22×19.05
Fin spacing
mm
1.6
Fin type
Hydrophilic fin
Tube outside diameter
mm
Ф7.94
Tube type
Inner thread tube
Coil length×height
mm
(1290+1260)×792×2
(1360+1390+930)×792×2
Number of circuits
18
24
Outdoor air flow
m3/h
16575
16575
Sound pressure level
dB(A)
62
62
Connectable
indoor unit
Total capacity
% 50-130
Max. quantity
14
15
Outdoor uint
Net dimension (W×H×D)
mm
1360×1650×540
1460×1650×540
Service manual
Mini MVD V4+ (20 to 45kW)

12 Specifications & Performance
Packing (W×H×D)
mm 1450×1785×560
1550×1785×560
Net/Gross weight
mm
240/260
275/290
Refrigerant
Type
R410A
Factory charged
kg
9
12
Throttle type
Electronic expansion valve
Design pressure (Hi/Lo)
MPa
4.4/2.6
Refrigerant
piping
Liquid pipe
mm
Ф12.7
Ф12.7
Gas pipe
mm
Ф22.2
Ф25.4
Ambient temp.
range
Cooling
oC
-5~48
Heating
oC
-15~24
Notes:
Capacities are based on the following conditions:
Cooling: Indoor temperature 27oC DB/19 oC WB; Outdoor temperature 35 oC DB/24 oC WB.
Heating: Indoor temperature 20 oC DB/15 oC WB; Outdoor temperature 7 oC DB/6 oC WB.
Piping length: Interconnecting piping length 7.5m, level difference of zero.
Sound values are measured in a semi-anechoic room, at a position 1m in front of the unit and 1.3m above the floor.
The above data may be changed without notice for future improvement on quality and performance.
Service manual
Mini MVD V4+ (20 to 45kW)

Specifications & Performance 13
2. Dimensions
MVD-V200W/DRN1 MVD-V224W/DRN1 MVD-V260W/DRN1
Unit: mm
MVD-V400W/DRN1 MVD-V450W/DRN1
Unit: mm
Model
A
B
C
40kW
175
505
1360
45kW
225
555
1460
668 205.8
414
400
528 494
1558
1120
1650
C
540
500
505
475 450
A B
Service manual
Mini MVD V4+ (20 to 45kW)

14 Specifications & Performance
3. Service space
Single unit installation
Multiple unit installation
>300
>600
>300
>
3000
(Wall or obstacle)
Maintain the electric
wire and pipeline
Air outlet
Air inlet
Air inlet
Single unit installation
>600
>3000
>300
Parallel connect the two units or above
>3000 >1000 >6000 >4000 >300
Parallel connect the front with rear sides
MVD-V200W/DRN1 MVD-V224W/DRN1 MVD-V260W/DRN1
Service manual
Mini MVD V4+ (20 to 45kW)

Specifications & Performance 15
MVD-V400W/DRN1 MVD-V450W/DRN1
Single unit installation
Multiple unit installation
>
600
>4000
>400
>400
>600
Air inlet
(Wall or obstacle)
Air inlet
Air outlet
Maintain
channel
>600
>4000
>400
>
600
>4000 >1000 >8000 >6000 >400
Service manual
Mini MVD V4+ (20 to 45kW)

16 Specifications & Performance
4. Piping diagrams
MVD-V200W/DRN1
MVD-V224W/DRN1 MVD-V260W/DRN1
Service manual
Mini MVD V4+ (20 to 45kW)

Specifications & Performance 17
MVD-V400W/DRN1 MVD-V450W/DRN1
Key components:
Oil separator: It is used to separate oil from high pressure and high temperature gas refrigerant, which is
pumped out from compressor. The separation efficiency is up to 99%, it makes the oil return back to each
compressor very soon.
Gas-liquid separator: It is used to store the liquid refrigerant and oil; it can protect the compressor from liquid
hammer.
Four-way valve (ST1): It is used to change the refrigerant flow direction; it is closed in cooling mode and
opened in heating mode.
EXV (Electromagnetic Expansion Valve): It is used to adjust refrigerant volume.
SV2: It is used to protect compressor. When any compressor discharge temperature is higher than 100oC, SV2
will be open to spray a little liquid refrigerant to cooling compressor, and it will be closed when the discharge
temperature is lower than 90oC.
SV4: It is used to help the oil in oil separator return back to compressor, guarantee the oil balance among
compressors. When the unit is initial power on, SV4 will open 120 seconds, then it will reopen after DC inverter
compressor running 5 minutes and then it will close after DC inverter compressor running 15 minutes. Later,
SV4 will open 3 minutes after DC inverter running 20 minutes regularly.
SV5: It is used to enlarge refrigerant volume to accelerate defrosting speed. In defrosting mode, SV5 will be
open to cut the refrigerant flowing circle, so the defrosting process will take less time, in cooling mode, SV5 will
always be closed.
SV6: It is used to by-pass refrigerant. It will be closed in heating and standby mode. It will be open in forced
cooling and oil return mode. In cooling mode, it will be open or closed according to discharge pressure.
SV7: It is used to balance system pressure before open the unit, and it can guarantee system reliability in low
temperature heating mode.
High pressure sensor: It is used to supervisor the discharge pressure of the compressor and to control the
DC fan speed.
T3: Pipe temperature sensor; T4: Ambient temperature sensor
SV6
EXVA
EXVB
SV41
Inverter
comp.
Inverter
comp.
SV42
Oil
separator
Oil
separator
T3 T4
High
pressure
switch SV7
Low
pressure
switch
SV2
High pressure valve
Low pressure valve
Gas-liquid
separator
ST1
Service manual
Mini MVD V4+ (20 to 45kW)

18 Specifications & Performance
5. Wiring diagram
MVD-V200W/DRN1 MVD-V224W/DRN1 MVD-V260W/DRN1
CN200
L1
CN201
L2
CN202
L3
CN204
CN205
CN206
Y/G
RED WHITE BLACK
BLUE
CN212
CN101
CN203
N
CN207
CN150
GND_1GND_1
GND_2
CN209
L3
’
L2
’
L1
’
2020951A5316
H4
H5
H7
HF
P1
P2
P3
Contents displayed by DSP2
Communication fault between the outdoor
and indoor units.
High pressure protection or voltage protection
Low pressure protection Outdoor Input current protection Compressor discharge high protection
P4
P5
P6
H0
PE
P8
Inverter compressor top high
temperature protection
E5
E4
H8
Voltage protection fault or a lack of
Phase B Phase N.
E2
P0
E6
3times of P6 protection in 30 minutes
EA
Eb
M-HOME for the indoor and outdoor units
does not match.
COMM. Fault between Ir341 and main chip
DC fan motor fault.
Afan in the Aregion run for more
than 5 minutes in Heat mode
2times of E6 protection in 10 minutes
Evaporator high temperature protection
Typhoon protection
Indoor unit
capacity dial-up
Dial-up cannot be changed.)
Outdoor unit network
address dial-up
0-F indicates 0-15.
ENC3 function definition
10HP(28KW)
8HP(25.2KW/26KW)
ENC2 function definition:
7HP(22.4KW)
Heating priority
mode (setted by
factory default)
Initial-start
priority mode
Cooling only mode
Cooling priority mode
Heating only mode
S5 function definition
S6 function definition:
Nonautomatic
addressing(setted
by factory default)
Clear indoor unit
address
Automatic addressing
Dial-up function definition
H1
E7
Discharge temperature sensor fault.
COMM. Fault between communication chip and main chip
T3 &T4 temperature sensor fault.
The number of indoor units decreases.
Reserved
Outdoor condenser high temperature protectionOutdoor condenser high temperature protection Inverter module protection
3times of P2 protection in 30 minutes
E1E1
Reserved
WIRING DIAGRAM (OUTDOOR UNIT)
Y/G
PTC1
PTC2
5
4
1
2
3
D1
BLUE
RED
RED
RED
UVW
R1
UV
W
CAP3
R2
BLUE
CAP2
W
V
U
(CN3)
CN1
CN5
IPM MODULE
RED
RED
RED
BLACK
BLACK
BLACK
RED
BLUE
A
XT2
BN
C
POWER SUPPLY
YELLOW
YELLOW
BLUE
YELLOW
YELLOW
YELLOW
CN27
ON
CN47
CN7 CN24
CN9
T4
T3
L-PRO
K1
EEV.
CN4
Note: Use a three-core shielding wire and
ensure the shielding layer is grounded.
ToIndoor unit
communication
ToIndoor unit
central controller
Tooutdoor
unit monitor
Middle connection
panel components
Tokilowatthour
meter
T5
CN4
CN250
CN48
CN46
CN45
CN44
CN42
CN119/CN121
HEAT1
CN13
PN
RED
WHITE
BLACK
BLUE
ORANGE
ORANGE
BROWN
BROWN
CN41 CN20
CN120/CN122
CN14
CN211
CN107
CN109
CN103 CN104
RED
BLACK
BLACK
YELLOW RED
CN2
RED
WHITE
BLUE
BLUE
RED
WHITE
H-PRO
H-PRO XT2
T3
XS1-XS2,XP1-XP2
COMP.
KM(B)
STF1
HEAT1
Inverter compressor Fan Motor
4-way valve
Contactor
Crankcase heating
Pipeline high-pressure switch
Piping temperature sensor Middle terminal
T4
Outdoor environment temperature sensor
Inverter compressor discharge
L-PRO
Pipeline low-pressure switch
Code
Name
E1,E2
Filter capacitor
L-3
Reactor
PTC
Thermal resistor
SV 2,4,5,6,7
Solenoid valve
R1,R2
Cement resistor
EEV
CT1,IC201
T5
FAN-UP,FAN-DOWN
BD-1BD-1
Bridge rectifier
ZR10
Varistor
K1
Discharge temperature switch
C1,C2C1,C2
Ferrite core
Current instrument transformer
Electric expansion valve
temperature sensor
Big 4-phase terminal
KM2
3-phase sequence voltage protection relay
NO
ST
R
KM2
COM
Service manual
Mini MVD V4+ (20 to 45kW)

Specifications & Performance 19
MVD-V400W/DRN1 MVD-V450W/DRN1
ENC2
POWER
ZR
ZR
ON
difference in one
second more than 15rps
difference between
setting speed and running speed more than 15rps
Service manual
Mini MVD V4+ (20 to 45kW)