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MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF
Contents
Part 1 General Information ................................................................................. 1
Part 2 Specifications & Performance ............................................................... 10
Part 3 Installation .............................................................................................. 54
Part 4 Troubleshooting ..................................................................................... 70
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R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10
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MCAC-VTSM-2016-10 R410A All 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
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R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10
2 General Information
1. Product Lineup
Outdoor Units
Width: 900
Height: 1327
Depth:400
Width: 900
Height: 1327
Depth:400
Width: 900
Height: 1327
Depth:400
Width: 900
Height: 1327
Depth:400
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MCAC-VTSM-2016-10 R410A All 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
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R410A All 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.
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MCAC-VTSM-2016-10 R410A All 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.
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R410A All 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
X Y E X Y E
Total piping length (Actual)
The first branch joint to the
farthest IDU
20m
The IDU to the nearest branch pipe
Level difference
between ODU~IDU
Level difference between IDU~IDU
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
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MCAC-VTSM-2016-10 R410A All 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
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R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10
8 General Information
4. Indoor Units Lineup
Compact four-way
cassette
Medium static pressure duct
High static pressure duct
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MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF
General Information 9
Indoor units lineup
Floor-standing/Ceiling & Floor/Console
Floor standing
(concealed)
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.
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R410A All 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
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MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF
Specifications&Performance 11
1. Specifications
Tube pitch(a)x row
pitch(b)
Tube outside dia.and type
Outdoor sound level(sound pressure level )
Outdoor Unit
Dimension(W x H x D)
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R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10
12 Specifications&Performance
Electronic expansion valve
Refrigerant
piping
Liquid side/ Gas side
Max. refrigerant pipe length
3 core shielded wire x
0.75
3 core shielded wire x
0.75
(Cooling -15~43)
(Heating -15~27)
(Cooling -15~43)
(Heating -15~27)
Tube pitch(a)x
row pitch(b)
Tube outside
dia.and type
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MCAC-VTSM-2016-10 R410A All 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.
Outndoor sound level(sound
pressure level )
Electronic expansion valve
Max. refrigerant
pipe length
3 core shielded wire x 0.75
3 core shielded wire x 0.75
(Cooling -15~43)
(Heating -15~27)
(Cooling -15~43)
(Heating -15~27)
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R410A All 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
A
B E
D GFC
320
H
——
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MCAC-VTSM-2016-10 R410A All 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
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R410A All 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.
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MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF
Specifications&Performance 17
5. Wiring Diagrams(For 12-16kW)
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R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10
18 Specifications&Performance
For 18kW
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MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF
Specifications&Performance 19
6. Field Wiring
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R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10
20 Specifications&Performance
7. Capacity Tables
MDV-V120W/DRN1
Cooling TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor)
Combination
(%)
(Capacity
index)
Outdoor
temperature
(°C DB)
Indoor temperature(°C DB/WB)
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MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF
Specifications&Performance 21
MDV-V120W/DRN1
Cooling TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor)
Combination
(%)
(Capacity
index)
Outdoor
temperature
(°C DB)
Indoor temperature(°C DB/WB)
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R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10
22 Specifications&Performance
MDV-V120W/DRN1
Cooling TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor)
Combination
(%)
(Capacity
index)
Outdoor
temperature
(°C DB)
Indoor temperature(°C DB/WB)
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MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF
Specifications&Performance 23
MDV-V120W/DRN1
Cooling TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor)
Combination
(%)
(Capacity
index)
Outdoor
temperature
(°C DB)
Indoor temperature(°C DB/WB)
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R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10
24 Specifications&Performance
MDV-V120W/DRN1
Cooling TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor)
Combination
(%)
(Capacity
index)
Outdoor
temperature
(°C DB)
Indoor temperature(°C DB/WB)
Note:
1. is tested under our standard condition.
2. In cooling mode, avoid running the unit when outdoor air temperature is above 43 degrees.
3. The above table shows the average value of conditions may operate.
4. It is recommended to connect less than 130%.
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MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF
Specifications&Performance 25
MDV-V120W/DRN1
Heating TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor)
Combination (%)
(Capacity index)
Outdoor Air
temperature(°C DB)
Indoor temperature(°C WB)
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R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10
26 Specifications&Performance
MDV-V120W/DRN1
Heating TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor)
Combination (%)
(Capacity index)
Outdoor Air
temperature(°C DB)
Indoor temperature(°C WB)
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MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF
Specifications&Performance 27
MDV-V120W/DRN1
Heating TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor)
Combination (%)
(Capacity index)
Outdoor Air
temperature(°C DB)
Indoor temperature(°C WB)
Note:
1. is tested under our standard condition.
2. In heating mode, avoid running the unit when the outdoor air temperature is below -15 degrees.
3. The above table shows the average value of conditions may operate.
4. It is recommended to connect less than 130%.