Midea VRF Manuel d'utilisation

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Commercial Air Conditioner Division

Midea Group

Address: Midea Headquarters Building, 6 Midea Avenue, Beijiao, Shunde, Foshan,

Guangdong, China

Postal code: 528311

Tel: +86-757-26338346 Fax: +86-757-22390205

cac.midea.com global.midea.com

Note: The data in this book may be changed without notice for further improvement on

quality and performance.

One-way Cassette

Two-way Cassette

Compact Four-way Cassette

Four-way Cassette

Silent Four-way Cassette

Series:

VRF Indoor Unit

60Hz

01 One-way Cassette

24 Two-way Cassette

41 Compact Four-way Cassette

57 Four-way Cassette

81 Silent Four-way Cassette

Contents

MCAC-VTSM-2016-05 One-way Cassette

Indoor Unit 1

One-way Cassette

1. Features ......................................................................2

2. Specifications.............................................................3

3. Dimensions.................................................................6

4. Service Spaces...........................................................8

5. Piping Diagrams.........................................................9

6. Wiring Diagrams.......................................................10

7. Capacity Tables ........................................................12

8. Electrical Characteristics ........................................18

9. Sound Levels............................................................19

10. Accessories ............................................................23

One-way Cassette MCAC-VTSM-2016-05

2 Indoor Unit

1. Features

1.1 New panel design

The new panel is equipped with digital display function, which can show temperature, warning message and

check running parameters.

1.2 Compact design

For capacity 6100~12300Btu/h(1.8~3.6kW) models, need only 6-1/32in.(153mm) space above the ceiling.

And 7-7/16in.(189mm) for 15400~24200 Btu/h (4.5~7.1kW) models.

1.3 Parts inside installation

The throttling components and water pump are internally installed which means lower cost, no extra

accessories or installation time.

1.4 Large airflow and low noise

Large airflow, for high ceiling application. Installation height can reach up to 10.5ft(3.2m) for

6100~12300Btu/h(1.8~3.6kW) models and 13.1ft(4.0m) for 15400~24200 Btu/h(4.5~7.1kW) models,

guarantees comfort in large space.

1.5 Improved air quality

Two folding type air filters and two standard formaldehyde absorption nets improve the air quality greatly.

The design of a long air outlet and a wide guide fan blade, which enlarges the range of flow transportation.

1.6 Auto swing

Auto swing mechanism guarantees even airflow distribution and a better room temperature balance.

1.7 Built-in water pump with 29-17/32in.(750mm) pump head

1.8 Prevent condensation in air outlet by the patent of a new structure design

By the adoption of this structure, the guide wing will always wrapped up by dry cold air, cutting off the contact

route of moist hot air and the cold guide wing.As a result, the water vapour in mosit hot air gets no change to

condense in the surface of guide wing.

1.9 Auto restart

When the indoor unit is powered off, it will auto restart when powered on again after 3 minutes and operate

in the previous state.

MCAC-VTSM-2016-05 One-way Cassette

Indoor Unit 3

2. Specifications

Model

MDV-D18Q1/VN1-D

MDV-D22Q1/VN1-D

Power supply

V- Ph-Hz

220-240V~1Ph~60Hz

Cooling

Capacity

1.8

2.2

Btu/h

6100

7500

Input

Rated current

0.24

Heating

Capacity

2.2

2.6

Btu/h

7500

8900

Input

Rated current

0.24

Indoor fan motor

Model

RPS12B

Type

AC motor

Brand

Welling

Input(H/M/L)

29.5/26.7/25.0

Capacitor

μF

0.8μF/450V

Speed (H/M/L)

r/min

1180/955/710

Indoor coil

Number of rows

Tube pitch(a) ×row pitch(b)

in.(mm)

53/64×17/32(21×13.37)

Fin spacing

in.(mm)

1/16(1.5)

Fin type

Hydrophilic aluminum

Tube outside dia. and type

in.(mm)

9/32(Ф7) Inner groove tube

Coil length ×height ×width

in.(mm)

29-59/64×9-15/16×1-3/64(760×252.4×26.74)

Number of circuits

Indoor air flow (H/M/L)

m3/h

523/404/275

CFM

308/238/162

Indoor noise level (H/M/L)

dB(A)

37/34/30

38/34/30

Indoor unit

Dimension (W×H×D)

in.(mm)

41-1/2×6-1/32×16-47/64(1054×153×425)

Packing (W×H×D)

in.(mm)

45-15/32×9-41/64×19-19/64(1155×245×490)

Net/Gross weight

lbs. (kg)

27.8/35.3(12.5/16)

Panel

Dimension (W×H×D)

in.(mm)

46-29/64×63/64×18-5/16(1180×25×465)

Packing (W×H×D)

in.(mm)

48-1/2×4-7/32×20-23/64(1232×107×517)

Net/Gross weight

lbs. (kg)

7.7/11.5(3.5/5.2)

Refrigerant type

R410A

Throttle

Type

Electronic expansion valve

Model

D20MISZ-1R(L)

Design pressure(H/L)

MPa

4.4/2.6

Refrigerant piping

Liquid side

in.(mm)

1/4(Ф6.35)

Gas side

in.(mm)

1/2(Ф12.7)

Connecting wiring

Power wiring

mm2

3×1.0

Signal wiring

mm2

3×0.75

Drainage water pipe diameter

in.(mm)

OD 63/64 (Ф25)

Controller

Wireless remote controller

Notes: 1. Nominal cooling capacities are based on the following conditions: return air temperature: 27°CDB,19°CWB,

outdoor temperature:35°CDB,equivalent refrigerant piping: 8m(horizontal).

2. Nominal heating capacities are based on the following conditions: return air temperature: 20°CDB,

outdoor temperature: 7°CDB,6°CWB,equivalent refrigerant piping: 8m(horizontal)

One-way Cassette MCAC-VTSM-2016-05

4 Indoor Unit

Model

MDV-D28Q1/VN1-D

MDV-D36Q1/VN1-D

Power supply

V- Ph-Hz

220-240V~1Ph~60Hz

Cooling

Capacity

2.8

3.6

Btu/h

9600

12300

Input

Rated current

0.25

Heating

Capacity

3.2

4.0

Btu/h

10900

13600

Input

Rated current

0.25

Indoor fan

motor

Model

RPS12B

Type

AC motor

Brand

Welling

Input

31.0/27.2/25.3

Capacitor

μF

1.0μF/450V

Speed (H/M/L)

r/min

1270/1050/790

Indoor coil

Number of rows

Tube pitch(a) ×row pitch(b)

in.(mm)

53/64×17/32(21×13.37)

Fin spacing

in.(mm)

1/16(1.5)

Fin type

Hydrophilic aluminum

Tube outside diameter and type

in.(mm)

9/32(Ф7) Inner groove tube

Coil length ×height ×width

in.(mm)

29-59/64×9-15/16×1-3/64(760×252.4×26.74)

Number of circuits

Indoor air flow (H/M/L)

m3/h

573/456/315

CFM

337/268/185

Indoor noise level (H/M/L)

dB(A)

39/37/34

40/38/34

Indoor unit

Dimension (W×H×D)

in.(mm)

41-1/2×6-1/32×16-47/64(1054×153×425)

Packing (W×H×D)

in.(mm)

45-15/32×9-41/64×19-19/64(1155×245×490)

Net/Gross weight

lbs.(kg)

28.8/ 36.4(13/16.5)

Panel

Dimension (W×H×D)

in.(mm)

46-29/64×63/64×18-5/16(1180×25×465)

Packing (W×H×D)

in.(mm)

48-1/2×4-7/32×20-23/64(1232×107×517)

Net/Gross weight

lbs.(kg)

7.7/11.5(3.5/5.2)

Refrigerant type

R410A

Throttle

Type

Electronic expansion valve

Model

D20MISZ-1R(L)

Design pressure(H/L)

MPa

4.4/2.6

Refrigerant

piping

Liquid side

in.(mm)

1/4(Ф6.35)

Gas side

in.(mm)

1/2/(Ф12.7)

Connecting

wiring

Power wiring

mm2

3×1.0

Signal wiring

mm2

3×0.75

Drainage water pipe diameter

in.(mm)

OD 63/64 (Ф25)

Controller

Wireless remote controller

Notes: 1. Nominal cooling capacities are based on the following conditions: return air temperature : 27°CDB,19°CWB,

outdoor temperature.:35°CDB,equivalent refrigerant piping: 8m(horizontal)

2. Nominal heating capacities are based on the following conditions: return air temperature: 20°CDB,

outdoor temperature: 7°CDB,6°CWB,equivalent refrigerant piping: 8m(horizontal)

MCAC-VTSM-2016-05 One-way Cassette

Indoor Unit 5

Model

MDV-D45Q1/VN1-D

MDV-D56Q1/VN1-D

MDV-D71Q1/VN1-D

power supply

V-Ph-Hz

220-240V~1Ph~60Hz

Cooling

Capacity

4500

5600

7100

Btu/h

15400

19100

24200

Input

Rated current

0.27

0.32

0.36

Heating

Capacity

5000

6300

8000

Btu/h

17100

21500

27300

Input

Rated current

0.27

0.32

0.36

Indoor fan

motor

Model

YDK38-4

YDK43-4

Type

AC motor

Brand

Welling/ Tongde

Input

43.6/36.0/26.8

48.2/40.0/29.8

72.8/46.0/31.8

Capacitor

2.0

3.0

Speed (h/m/l)

r/min

930/830/700

1050/930/800

1120/960/780

Indoor coil

Number of rows

Tube pitch(a) ×row

pitch(b)

in.(mm)

21×13.37

Fin spacing

in.(mm)

1/16(1.5)

Fin type

Hydrophilic Aluminum

Tube outside dia.

and type

in.(mm)

9/32(Ф7)

Inner groove tube

Coil length ×height

×width

in.(mm)

37-19/32×9-3/32×1-3/64(955×231×26.74)

37-19/32×13-15/64×1-3/64

(955×336×26.74)

Number of circuits

Indoor air flow (H/M/L)

m3/h

693/600/476

792/688/549

933/749/592

CFM

408/353/280

466/405/323

549/441/349

Indoor noise level (H/M/L)

dB(A)

41/39/35

42/40/36

44/41/37

Indoor unit

Dimension (W×H×D)

in.(mm)

50-13/64×7-7/16×17-23/32(1275×189×450)

Packing (W×H×D)

in.(mm)

53-15/16×11-39/64×19-7/8(1370×295×505)

Net/Gross weight

lbs.(kg)

40.8/51.1(18.5/23.2)

41.4/51.8(18.8/23.5)

43.0/53.4(19.5/24.2)

Panel

Dimension (W×H×D)

in.(mm)

53-5/32×63/64×19-7/8(1350×25×505)

Packing (W×H×D)

in.(mm)

55-33/64×3-47/64×22-3/64(1410×95×560)

Net/Gross weight

lbs.(kg)

8.8/11.9(4/5.4)

Refrigerant type

R410A

Throttle

Type

Electronic expansion valve

Model

D20MISZ-1R(L)

Design pressure (H/L)

MPa

4.4/2.6

Refrigerant

piping

Liquid side

in.(mm)

1/4 (Φ6.35)

1/2(Ф12.7)

Gas side

in.(mm)

1/2(Φ12.7)

5/8(Ф15.9)

Connecting

wiring

Power wiring

mm2

3×2.5

Signal wiring

mm2

3×0.75

0.75

Drainage water pipe dia.

in.(mm)

OD 63/64 (Ф25)

Controller

Wireless remote controller

Notes: 1. Nominal cooling capacities are based on the following conditions: return air temperature: 80.6℉（27°C）DB,66.2℉

（19°C）WB, outdoor temperature:95℉(35°C)DB, equivalent ref. Piping: 8m(horizontal)

2. Nominal heating capacities are based on the following conditions: return air temperature: 68℉(20°C)DB,

outdoor temperature: 44.6℉(7°C)DB,42.8℉(6°C)WB, equivalent ref. Piping: 8m(horizontal)

One-way Cassette MCAC-VTSM-2016-05

6 Indoor Unit

3. Dimensions Unit : in.(mm)

MDV-D18Q1/VN1-D MDV-D22Q1/VN1-D MDV-D28Q1/VN1-D MDV-D36Q1/VN1-D

/（

）

MCAC-VTSM-2016-05 One-way Cassette

Indoor Unit 7

MDV-D45Q1/VN1-D MDV-D56Q1/VN1-D MDV-D71Q1/VN1-D

53-5/32(1350)

41-1/2(1054)

2-3/4(70)

19-7/8(505)

8-31/32(228)

41-49/64(1061)

7-7/16(189)

63/64

(25)

45-5/8(1235)

11-13/16(300)

45-5/8(1235)

4-11/16(119)

1-21/32(42)

2-23/32(69)

2-23/64(60)

6-11/16(170)

2-61/64

(75) 1-3/16

(30)

3-5/16(84)

2-13/64(56)

1-19/64(33)

2-1/64(51)

4-49/64(121)

17-51/64(452)

Please use the installation paper plate to make sure the position of the installation screws.

Ceiling cutting size:C

Ceiling cutting size:A

Screw fixing size:D

Please use the installation paper plate to make sure the

positions of the installation screws.

Screw fixing size:B

4×Φ10

Model

No.

18-36

45-71

16-59/64(430)

18-1/2(470)

11-27/64(290)

11-13/16(300)

43-5/16(1100)

50-25/32(1290)

39-61/64(1015)

48-5/8(1235)

One-way Cassette MCAC-VTSM-2016-05

8 Indoor Unit

4. Service Spaces

Please avoid installing in the following places :

A place with flammable gas or material.

A saline place such as a seashore vicinity.

A place with sulphur gas.

A place with oil gas, such as kitchen.

A place with high-humidity air.

An unbearable place.

A place where high-frequency waves are generated.

The appliance shall not be installed in the laundry.

Please comply with the related national electric standard to make electric insulation for construction and

metal parts of air-conditioner.

Please choose the place where the ventilation is good.

Ceiling space requires ≥C in.(mm).

The installation height of the unit cannot be higher than D in.(mm), or it will affect the operation effect.

≥C

≥B

≥3-15/16

(100)

≤D

Unit：in.(mm)

≥3-15/16

(100)

Fan angle range

Air return port

The air outlet can not

has any barriers such

as pendant lamp,

folding screen etc.

Unit：in.(mm)

≥3-15/16

(100)

Unit : in.(mm)

Model

No.

18-36

45-71

46-29/64(1180)

53-5/32(1350)

54-21/64(1380)

61-1/32(1550)

6-1/32(153)

7-7/16(189)

125-63/64(3200)

157-31/64(4000)

18-5/16(465)

19-7/8(505)

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