V4 Plus Heat Recovery VRFLinda Lin

Pre-sales Engineer

VRF Line-up

V5 X8-88HP

DC inverter VRFs

2-pipe 3-pipe

Water-cooled

CombinableHeat

recoveryIndividual Mini

V4+S8-64HP

V4+I (side)20-45kW

V4+I (top)25-90kW

V4+W8-30HP

Mini VRF8-18kW

V4+R8-64HP

• Largest capacity: 246kW (88HP) per system

• Heat pump, heat recovery , zone-by-zone mode control

COOL WARM

Energy-saving startup

Adjustable outdoor HE

All DC inverter technology

High EER and COP

Heat recovery operation

Wide application

High efficiency

High reliability

Enhanced comfort

Easy installation

Brand-new MS

Comparisons

Heat recovery operation

• More efficient heat recovery operation than individual heating and cooling only

Heat pump system

2HP 2HP2HP2HP

Heat recovery system

2HP 2HP2HP2HP

4HP4HP

4HP

Heat recovery operation

• A heat recovery system realizes heat transfer between the indoor units and

offers high energy efficiency by drawing heat from the rooms to be cooled, and

effectively using it as a heat source for the rooms to be heated

H OFF C OFF H

MS MS MS

C H

Heat absorption

Heat release

Heat release

Internal transfer

Heat absorption

High EER and COP

• EER up to 4.4 (8HP); COP up to 4.5 (8HP)

EER COP

3,0

3,4

3,8

4,2

4,6

8 10 12 14 16

HP

3,0

3,4

3,8

4,2

4,6

8 10 12 14 16

HP

High EER and COP

• EER is up to 7.0 at 50% cooling and 50% heating

EER

3,0

3,5

4,0

4,5

5,0

5,5

6,0

6,5

7,0

7,5

100% cooling 75% cooling25% heating

50% cooling50% heating

25% cooling75% heating

100% heating

8HP

10HP

12HP

14HP

16HP

All DC inverter technology

• All DC inverter compressors

• Capacity output of each compressor is balanced automatically

• Always work in the 40 to 70 Hertz high-efficiency range

Ro

un

d 1

DC1

30Hz

Fix1

ON

Fix2

OFF

DC + fixed compressors

DC1

50Hz

DC2

48Hz

DC + DC compressors

Ro

un

d 2

DC1

80Hz

Fix1

ON

Fix2

OFF

DC + fixed compressors

DC1

60Hz

DC2

58Hz

DC + DC compressors

Partitioned outdoor heat exchanger

• Two independent outdoor heat exchanger sections

• Each heat exchanger section is controlled separately

• Two independent circuits in a single outdoor unit

Heat pump VRF Heat recovery VRF

Energy-saving startup in heating mode

• Patented high pressure balance pipe design enables the four-way valve to switch

cooling/heating without starting the slave outdoor units

• Competitor products need to start all the outdoor units even when the load is lower

than a single ODU’s capacity

Midea V4+R Competitor

11 2 3

Patented design

Hydro-box connection

Long piping length

Wide operation range

Wide indoor unit range

Wide outdoor rangeWide application

High reliability

Enhanced comfort

Easy installation

Brand-new MS

Comparisons

High efficiency

8-16 HP 18-32 HP

34-48 HP 50-64 HP

Wide outdoor unit capacity range

Wide indoor unit range

Cassette

Duct Wall-mounted

Floor Standing Ceiling & Floor Console Fresh Air Processing Unit

1.8 -7.1kW 1.8 -7.1kW 1.5 -4.5kW 1.8 -7.1kW

1.5 -14kW 7.1 -56kW 2.8 -9.0kW 2.8 -9.0kW

2.2 -8.0kW 2.8 -9.0kW 2.8 -4.5kW 12.5 -28kW

Wide indoor unit range

For narrow spaces and corners

Two-way Cassette

For open spaces, air supply balance

Four-way Cassette

For spaces already decorated

Ceiling & Floor

For small spaces with low-noise requirements

Wall-mounted

ESP up to 196Pa -specially designed for

large spaces

High ESP Duct

Wide operating range

• Cooling mode: -5˚C to 48˚C

• Heating mode: -20˚C to 24˚C

• Heat recovery mode: -5˚C to 24˚C

-5˚C 48˚CCooling mode

-20˚C 24˚CHeating mode

0 ˚C 5 ˚C 10 ˚C 15 ˚C 20 ˚C 25 ˚C 30 ˚C 35 ˚C 40 ˚C 45 ˚C 50 ˚C-10˚C -5 ˚C-15˚C-20˚C

-5˚C 24˚CHeat recovery mode

Long piping length

70m(110m)

30m

Piping length

Longest length –actual (equivalent)

175m(200m)

Longest length after first branch

40m (90m)

Largest height difference between IDU and ODU –

ODU up (down)

70m (110m)

Largest height differencebetween IDUs

30m

Total piping

1000m

175m (200m)

40m (90m)

Connectable to hydro box

• Mode Switch (MS) box can also be connected to a hydro box to produce hot water

• Free heating provided by transferring heat from areas requiring cooling to areas

requiring heating or hot water

Hydro-box

Under floor heating

Domestic hot waterHot water: 25°C - 45°C

Anti-corrosion protection

Phase protection

Air-cooled PCB

Precise oil control

Duty cycling

Wide application

High reliability

Enhanced comfort

Easy installation

Brand-new MS

Comparisons

High efficiency

Duty cycling

• Each module and compressor priority is changed sequentially

• Equalizes the lifespan of the outdoor units and compressors

1st Cycle

2nd Cycle

3rd Cycle

1 2 3 4 5 6

5 6 1 2 3 4

3 4 5 6 1 2

Variable Variable Variable Variable Variable Variable

Precise oil control technology

• Five stages of oil control technology

• Ensures all outdoor compressor oil is always kept at a safe level

1st stage

2nd stage

3rd stage

4th stage

5th stage

Patented air-cooled PCB

• Decreases the average temperature of electrical control components by about 8˚C

• Guarantees the stable and safe running of the control system

PatentedCN 202792288 U

Phase sequence protection

• Protection against wrong-phase connections is fitted as standard in the outdoor PCB

• Protects all the electrical components from damage in the event of accidental wrong-

phase wiring

A B C N

Power supply terminal on E-box

L1 L2 L3 N

Power supply 3Phase, 380-415V

A B C N

Power supply terminal on E-box

L1 L2 L3 N

Power supply 3Phase, 380-415V

Voltage (A – N): 220V Voltage (A – N): 380V

Normal Incorrect

Anti-corrosion protection

• Anti-corrosion treatment standard on exterior metal parts and heat exchanger

• Heavy anti-corrosion treatment for extreme conditions available as a customization

option

Grill

Fan motor

Sheet metal painted parts

Heat exchanger

E-box

Screws / bolts / gaskets

Auto mode

Multi silent mode

Continuous heating

Wide application

High reliability

Enhanced comfort

Easy installation

Brand-new MS

Comparisons

High efficiency

Continuous heating during defrosting

• Either side of the outdoor heat exchanger can operate as a condenser for

defrosting while the other side operates as an evaporator to maintain heating

output to achieve continuous heating during defrosting

HP

VRF

HR

VRF

Defrosting

Defrosting

HE

H H

ODU

IDU

HE

OFF OFF

ODU

IDU

L R

H H

ODU

IDU

L R

H H

ODU

IDU

L R

H H

ODU

IDU

Continuous heating during defrosting

• Heating capacity only drops a little during defrosting

• Enhances system efficiency and makes the indoor environment more confortable

Heating capacity

Time

Heating capacity curve during defrosting

Heat pump VRF

Heat recovery VRF

Multiple silent modes

7:00 14:00 8:0022:00

Mode Running noise Mode Running noise

No silent mode Normal running Super silent mode 12dB(A) lower

Silent mode 8dB(A) lowerNight silent mode

(default)15dB(A) lower

Auto mode

• Heating or cooling is automatically selected based on the difference between the

room temperature and the temperature setting

• Keeps the indoor temperature at a constant level

Simple wiring

Easy system design

360° pipe connection

Rotatable control box

Space savingWide application

High reliability

Enhanced comfort

Easy installation

Brand-new MS

Comparisons

High efficiency

Space saving and economical

• Fewer units need to be combined together for a given capacity requirement

• Saves space and reduces piping requirements

V4 Plus R (64HP) Competitor (54+10HP)

COSTExtra Piping

Larger footprint

Rotatable control box

• Rotatable up to 150 degrees

• Perform maintenance of the piping system without the need to remove the control

box

Patented design

360° pipe connection

• Front, rear, right and left orientations are all possible for copper piping, power

cables, and communication cables, providing installation flexibility

Simple communication wiring

• Indoor centralized controller can be connected to either the indoor or the outdoor

units

• Connecting the controller to the outdoor units means that only PQE wiring is

required for indoor units (no indoor XYE wiring is required)

H1 H2 EPQE

PQEPQE PQE

PQE

PQE

PQE

PQEPQE

PQEPQE

X Y E X Y E

PQE

Easy system design

• Two kinds of selection software – a Windows version and an AutoCAD version

• The Windows version is designed to help sales engineers propose configurations

and prepare project quotations

• The AutoCAD version contains engineering drawings and placement guidance

Windows AutoCAD

Sub-cooling technology

Operating principle

Solenoid valve design

Flexible selection

MS lineup

Wide application

High reliability

Enhanced comfort

Easy installation

Brand-new MS

Comparisons

High efficiency

MS lineup

Applicable IDUs

Appearance Model Max.

number of IDU groups

Max. number of IDUs in

each group

Max. total number of

IDUs

Max. total IDU capacity

All IDUsexcept high

static pressure duct

MS01/N1-C 1 4 4 16kW

MS02/N1-C 2 4 8 28kW

MS04/N1-C 4 4 16 45kW

MS06/N1-C 6 4 24 45kW

Only high static

pressure duct

MS02E/N1-C 1 1 1 20/25/28kW

MS04E/N1-C 1 1 1 40/45/56kW

Flexible selection and installation

C H OFF C OFF H

MS04E MS02E MS04

• Multiple MS boxes can be used in a system

• The MS boxes provide the flexibility needed to adapt to the specific requirements

of individual projects

• Pipes in MS boxes can be blocked if not required

H

Solenoid valve design

• Compared to 4-way valve switching, running noise is reduced and the risk of

leakage is reduced, leading to increased reliability

• Sub-cooling circuit design for each MS box

Sub-cooling technology

• Enables larger temperature differences to enhance indoor heat-exchange

efficiency

IDU

MS

37⁰C

22⁰C

ODU

High pressure liquid pipe

Low pressure gas pipe

Sub-cooling pipe

Operating principle

• MS boxes enable heat recovery operation

SVA

SVB

Cooling

Indoor unit

High pressure liquid pipe

Low pressure gas pipe

High pressure gas pipe

MS box

EXV

SVA

SVB

Heating

MS box

SVB

SVA

Piping length

MS boxes

Efficiency

Capacity range

Wide application

High reliability

Enhanced comfort

Easy installation

Brand-new MS

Comparisons

High efficiency

Capacity range comparison

Capacity 5HP 8HP 10HP 12HP 14HP 16HP 18HP 20HP

Midea - √ √ √ √ √ - -

Brand D √ √ √ √ √ √ √ √

Brand M - √ √ √ √ √ √ -

• Midea has 5 models, up to 4 units can be combined, up to 64HP

• Brand D has 8 models, up to 3 units can be combined, up to 54HP

• Brand M has 6 models, up to 2 units can be combined, up to 36HP

Efficiency comparison

• Efficiency comparison with Brand D

EER COP

2,5

3,0

3,5

4,0

4,5

5,0

Midea Brand D

3,0

3,5

4,0

4,5

5,0

5,5

Midea Brand D

Efficiency comparison

• Efficiency comparison with Brand M

EER COP

2,5

3,0

3,5

4,0

4,5

5,0

8HP 10HP 12HP 14HP 16HP 18HP

Midea Brand M

3,0

3,5

4,0

4,5

5,0

5,5

8HP 10HP 12HP 14HP 16HP 18HP

Midea Brand M

Refrigerant piping length comparison

0

20

40

60

80

100

120

∆H between IDU & ODU (ODU up)

∆H between IDU & ODU (ODU

down)

∆H between IDUs

1st branch tofarthest IDU

MS to farthestIDU

70

110

30

90

40

90

60

30

40 40

50

40

15

60 60

Midea Brand D Brand M

MS comparison

• MS lineup comparison

Midea Brand D Brand M

MS01/N1-C BS1Q(10/16/25)A CMB-P104/5/6/8/10V-G1

MS02(E)/N1-C BS4Q14A CMB-P1013/16V-G1

MS04(E)/N1-C BS6/8Q14A

MS06/N1-C BS10/12Q14A

BS16Q14A

4 sizes6 models

5 sizes9 models

2 sizes7 models

MS comparison

Brand Model Max. number of connected IDUs

Dimensions WxDxH (mm) Weight (kg)

Midea

MS01 4630x605x225

18

MS02 8 19.5

MS04 16960x605x225

31

MS06 24 35

MS02E 1 630x605x225 19.5

MS04E 1 960x605x225 31

Brand D

BS1Q10A 5/6

388x326x207

12

BS1Q16A 8 12

BS1Q25A 8 15

BS4Q14A 20 370x430x298 17

BS6Q14A 30580x430x298

24

BS8Q14A 40 26

BS10Q14A 50370x430x298

35

BS12Q14A 60 38

BS16Q14A 64 1060x430x298 50

• MS comparison with Brand D

MS comparison

Brand Model Max. number of connected IDUs

Dimensions WxDxH (mm) Weight (kg)

Midea

MS01 4630x605x225

18

MS02 8 19.5

MS04 16960x605x225

31

MS06 24 35

MS02E 1 630x605x225 19.5

MS04E 1 960x605x225 31

Brand M

CMB-P104V-G1 4

648x432x284

24

CMB-P105V-G1 5 27

CMB-P106V-G1 6 28

CMB-P108V-G1 8 33

CMB-P1010V-G1 10 38

CMB-P1013V-G1 131098x432x284

45

CMB-P1016V-G1 16 52

• MS comparison with Brand M

MS comparison

• MS features comparison

Midea Brand D Brand M

System 3-pipe heat recovery VRF system

3-pipe heat recovery VRF system

2-pipe heat recovery VRF system

Valves

Multi solenoid valves control refrigerant flow direction

One EXV is used for sub-cooling

All valves are EXVs, some EXVs control refrigerant flow direction

Some EXVs are used for sub-cooling

3-way valves and some EXVs control refrigerant flow direction

Two EXVs are used for sub-cooling

Quiz

• What type of compressors does Midea’s latest V4+R series VRF use?

A. All inverter

B. Inverter and fixed speed

C. Fixed speed

• What is the maximum number of indoor units that can be connected to a

MS06/N1-C?

A. 1

B. 16

C. 24

D. 36

Thank you