Midea MKG Series Operating manual

Midea 50Hz AC Fan Coil Unit

2-Pipe Wall-mounted Series

Technical Service Manual

Midea reserves the right to discontinue, or change specification or designs at any time without notices and without incurring obligations

AC Fan Coil Unit Two-pipe Wall-mounted Series

- 1 -

Wall-mounted

AC Fan Coil Unit

1. INTRODUCTION ......................................................................................... - 2 -

2. NOMENCLATURE ....................................................................................... - 2 -

3. PRODUCT DETAILS ................................................................................... - 2 -

4. EXTERNAL APPEARANCE ........................................................................ - 3 -

5. FEATURE .................................................................................................... - 4 -

6. SPECIFICATIONS ....................................................................................... - 5 -

7. DIMENSIONS ............................................................................................ - 11 -

8. SERVICE SPACES .................................................................................... - 14 -

9. MAIN PCB PORTS .................................................................................... - 14 -

10. WIRING DIAGRAMS .............................................................................. - 16 -

11. SOUND LEVELS .................................................................................... - 17 -

12. INSTALLATION ...................................................................................... - 21 -

13. CONTROLLER ....................................................................................... - 33 -

14. CAPACITY TABLES ............................................................................... - 56 -

AC Fan Coil Unit Two-pipe Wall-

mounted Series

- 2 -

1. Introduction

MKG fan coil is a kind of newly designed fan coil units, which is mounted on the wall. It has two kinds of body, both

have 3-way valve inside the body. In additional, it has panels of different color can be optional.

MKG series fan coil is designed and manufactured on the base of fully adoption advanced technology. The acute

and thin body makes it save a lot of space and easy for installation. Quality materials and state-of-the-art technology

ensure optimal performance with virtually imperceptible noise levels and keep running smoothly.

Midea MKG series fan coil unit has been tested by national AC quality supervise testing center, as low noise level,

high efficiency, stable operation and low power consumption make it as the advanced production in the world, Due

to their reduced dimensions and pleasing design, these units are ideally suited for Commercial and Residential

environments.

2. Nomenclature

M K G – 250 - B

Design Serial Number

B: S type panel

C: A type panel

Air Flow (250CFM)

Type Code

G: Wall-mounted FCU

Chilled Water Fan Coil Unit

Midea

3. Product Details

Series Model Air volume(CFM) Power supply

250

220~240V-1Ph-50Hz

300

400

500

600

A type panel

MKG-250-C 250

220~240V-1Ph-50Hz

MKG-300-C 300

MKG-400-C 400

MKG-500-C 500

MKG-600-C 600

250

220~240V-1Ph-50Hz

300

400

500

600

S panel

була

поставках

2015-2021

рр

в нас лишилось декілька MKG-600B

AC Fan Coil Unit Two-pipe Wall-mounted Series

- 3 -

4. External Appearance

A panel

МИРКОНД буде поставляти в 2022-23 з таким дизайном

AC Fan Coil Unit Two-pipe Wall-

mounted Series

- 4 -

5. Feature

Multi-connection outlet pipe method: left/right/rear, more flexible for installation.

Wind direction adjustment can be in horizontal and vertical way for auto swing louver

Built-in 3-way electromagnetic valve.

Cross flow fan creates quiet and comfortable environment.

Easy maintenance has been realized as the front panel can be removed for easy access.

Remote controller with LCD display is standard, wired controller and central controller are optional.

Right pipin

Left piping

Righ t back pi ping

Left ba ck piping

Horizontal air deflector

Vertical air deflector

AC Fan Coil Unit Two-pipe Wall-mounted Series

- 5 -

6. Specifications

6.1 S type panel

MKG-250-B / MKG-300-B / MKG-400-B

Model MKG-250-B MKG-300-B MKG-400-B

Power supply V/Ph/Hz 220-240/1/50

Air flow (H/M/L) m3/h 425/390/350 510/470/390 680/550/460

CFM 250/230/205 300/275/230 400/325/270

Cooling

Capacity (H/M/L) kW 2.63/2.41/2.16 2.97/2.47/2.12 3.28/2.83/2.41

Water flow rate L/h 452 511 564

Water pressure drop kPa 29.4 35.6 43.5

Heating Capacity (H/M/L) kW 3.36/3.1/2.79 3.91/3.26/2.77 4.37/3.73/3.17

Water pressure drop kPa 27.3 32.9 40.8

Power input W 24 37 40

Current input H A 0.12 0.18

Sound pressure level dB(A) 30/24/20 35/29/24 37/31/26

Fan motor Type Low noise 4-speed fan motor

Quantity 1

Fan Type Tangenti al fan

Quantity 1

Coil

Row 2

Diameter mm Φ7

Tube pitch(a) × row pitch(b) mm 21×13.37

Dimension (W×H×D) mm 635×315×26.74

Fin spacing mm 1.5

Fin type Hydrophilic aluminum

Circuit 5

Max. working pressure MPa 1.6

Body

Net dimensions (W×H×D) mm 915×290×230

Packing size (W×H×D) mm 1020×390×315

Net weight kg 13 13 13.3

Gross weight kg 16.3 16.3 16.7

Pipe

connections

Water inlet/outlet pipe inch G3/4

Drain pipe mm ODΦ20

Notes:

1. H: high fan speed; M: medium fan speed; L: low fan speed

2. Cooling Conditions: Entering Water 7°C, Temperature Rise 5°C, Entering Air Temperature 27°C DB,19°C WB.

Heating Conditions: Entering Water 50°C, Enter air temperature 20°C, and water flow is same to the cooling conditions.

3. Noise is tested in semi-anechoic test room.

AC Fan Coil Unit Two-pipe Wall-

mounted Series

- 6 -

MKG-500-B / MKG-600-B

Model MKG-500-B MKG-600-B

Power supply V/Ph/Hz 220-240/1/50

Air flow (H/M/L) m3/h 850/745/620 1020/915/780

CFM 500/440/365 600/540/460

Cooling

Capac ity (H/M/L) kW 4.25/3.85/3.32 5/4.47/3.97

Water flow rate L/h 731 860

Water pressure drop kPa 31.8 42.5

Heating Capacity (H/M/L) kW 5.81/5.17/4.43 6.7/6/5.28

Water pressure drop kPa 30.2 39.7

Power input W 50 66

Current input A 0.22 0.29

Sound pressure level dB(A) 39/33/28 40/34/29

Fan motor Type Low noise 4-speed fan motor

Quantity 1

Fan Type Tangential fan

Quantity 1

Coil

Row 2

Diameter mm Φ7

Tube pitch(a) × row pitch(b) mm 21×13.37

Dimension (W×H×D) mm 785×315×26.74

Fin spacing mm 1.5

Fin type Hydrophilic aluminum

Circuit 5

Max. working pressure MPa 1.6

Body

Net dimensions (W×H×D) mm 1072×315×230

Packing size (W×H×D) mm 1180×415×315

Net weight kg 15.8 15.8

Gross weight kg 19.4 19.4

Pipe

connections

Water inlet/outlet pipe inch G3/4

Drain pipe mm ODΦ20

Notes:

1. H: high fan speed; M: medium fan speed; L: low fan speed

2. Cooling Conditions: Entering Water 7°C, Temperature Rise 5°C, Entering Air Temperature 27°C DB,19°C WB.

Heating Conditions: Entering Water 50°C, Enter air temperature 20°C, and water flow is same to the cooling conditions.

3. Noise is tested in semi-anechoic test room.

AC Fan Coil Unit Two-pipe Wall-mounted Series

- 7 -

6.2 A type panel

MKG-250-C / MKG-300-C / MKG-400-C

Model MKG-250-C MKG-300-C MKG-400-C

Power supply V/Ph/Hz 220-240/1/50

Air flow (H/M/L)

/h 435/396/342 523/426/351 660/534/480

CFM 256/233/201 308/251/206 388/314/282

Cooling

Capacity (H/M/L) kW 1.94/1.84/1.68 2.64/2.4/1.99 2.94/2.58/2.34

Water flow rate(H/M/L) m

/h 0.35/0.33/0.3 0.47/0.43/0.36 0.53/0.46/0.42

Water pressure drop(H/M/L) kPa 31.6/28.6/25.2 37.5/30/24 57.2/47.6/38.7

Heating

Capacity (H/M/L) kW 2.34/2.15/1.94 2.9/2.6/2.22 3.46/2.75/2.52

Water flow rate(H/M/L) m

/h 0.43/0.39/0.35 0.53/0.47/0.4 0.63/0.5/0.46

Water pressure drop(H/M/L) kPa 35.2/34.9/30 39.3/31.5/25 70.8/55.1/46.2

Power input (H/M/L) W 35/32/31 47/43/39 50/51/47

Current Input A 0.11 0.17 0.18

Sound pressure level dB(A) 30/24/20 35/29/24 37/31/26

Fan motor Type Low noise 3-speed fan motor

Quantity 1 1 1

Fan Type Tangential fan

Quantity 1 1 1

Coil

Row 2 2 2

Diameter mm Φ7 Φ7 Φ7

Tube pitch(a)xrow pitch(b) mm 21×13.37 21×13.37 21×13.37

Dimension (W×H×D) mm 635×315×26.74 635×315×26.74 635×315×26.74

Fin spacing mm 1.5 1.5 1.5

Fin type Hydrophilic aluminium

Circuit 5 5 5

Max. working pressure MPa 1.6 1.6 1.6

Body

Net dimensions (W×H×D) mm 915×290×233 915×290×233 915×290×233

Packing size (W×H×D) mm 1020×390×315 1020×390×315 1020×390×315

Net weight kg 13 13 13.3

Gross weight kg 16.3 16.3 16.7

Pipe connections Water inlet/outlet pipe inch G3/4 G3/4 G3/4

Drain pipe mm ODΦ20 ODΦ20 ODΦ20

Notes:

1. H: high fan speed; M: medium fan speed; L: low fan speed

2. Cooling Conditions: Entering Water 7°C, Temperature Rise 5°C, Entering Air Temperature 27°C DB,19°C WB.

Heating Conditions: Entering Water 50°C, Enter air temperature 20°C, and water flow is same to the cooling conditions.

3. Noise is tested in semi-anechoic test room.

AC Fan Coil Unit Two-pipe Wall-

mounted Series

- 8 -

MKG-500-C / MKG-600-C

Model MKG-500-C MKG-600-C

Power supply V/Ph/Hz

220-240/1/50

Air flow (H/M/L) m3/h 841/723/594 915/836/714

CFM 495/425/349 538/492/420

Cooling

Capacity (H/M/L) kW 4.01/3.61/3.1 4.61/4.33/3.84

Water flow rate(H/M/L) m3/h 0.72/0.65/0.56 0.83/0.78/0.69

Water pressure drop(H/M/L) kPa 47.1/33.5/29.7 51/39.5/34

Heating

Capacity (H/M/L) kW 4.39/3.8/3.27 4.55/4.2/3.82

Water flow rate(H/M/L) m3/h 0.8/0.69/0.6 0.83/0.76/0.69

Water pressure drop(H/M/L) kPa 48.6/40.8/31.7 48/43/33

Power input (H/M/L) W 60/54/48 72/60/55

Current Input A 0.22 0.29

Sound pressure level dB(A) 39/33/28 40/34/29

Fan motor Type Low noise 3-speed fan motor Low noise 3-speed fan motor

Quantity 1 1

Fan Type Tangential fan Tangential fan

Quantity 1 1

Coil

Row 2 2

Diameter mm Φ7 Φ7

Tube pitch(a)xrow pitch(b) mm 21×13.37 21×13.37

Dimension (W×H×D) mm 785×315×26.74 785×315×26.74

Fin spacing mm 1.5 1.5

Fin type Hydrophilic aluminium Hydrophilic aluminium

Circuit 5 5

Max. working pressure MPa 1.6 1.6

Body

Net dimensions (W×H×D) mm 1072×315×237 1072×315×237

Packing size (W×H×D) mm 1180×415×315 1180×415×315

Net weight kg 15.8 15.8

Gross weight kg 19.4 19.4

Pipe connections Water inlet/outlet pipe inch G3/4 G3/4

Drain pipe mm ODΦ20 ODΦ20

Notes:

1. H: high fan speed; M: medium fan speed; L: low fan speed

2. Cooling Conditions: Entering Water 7°C, Temperature Rise 5°C, Entering Air Temperature 27°C DB,19°C WB.

Heating Conditions: Entering Water 50°C, Enter air temperature 20°C, and water flow is same to the cooling conditions.

3. Noise is tested in semi-anechoic test room.

AC Fan Coil Unit Two-pipe Wall-mounted Series

- 9 -

6.3 P type panel

MKG-250-D / MKG-300-D / MKG-400-D

Model MKG-250-D MKG-300-D MKG-400-D

Power supply V/Ph/Hz 220-240/1/50

Air flow (H/M/L)

/h 435/396/342 523/426/351 660/534/480

CFM 256/233/201 308/251/206 388/314/282

Cooling

Capacity (H/M/L) kW 1.94/1.84/1.68 2.64/2.4/1.99 2.94/2.58/2.34

Water flow rate(H/M/L) m

/h 0.35/0.33/0.3 0.47/0.43/0.36 0.53/0.46/0.42

Water pressure drop(H/M/L) kPa 31.6/28.6/25.2 37.5/30/24 57.2/47.6/38.7

Heating

Capacity (H/M/L) kW 2.34/2.15/1.94 2.9/2.6/2.22 3.46/2.75/2.52

Water flow rate(H/M/L) m

/h 0.43/0.39/0.35 0.53/0.47/0.4 0.63/0.5/0.46

Water pressure drop(H/M/L) kPa 35.2/34.9/30 39.3/31.5/25 70.8/55.1/46.2

Power input (H/M/L) W 35/32/31 47/43/39 50/51/47

Current Input A 0.11 0.17 0.18

Sound pressure level dB(A) 30/24/20 35/29/24 37/31/26

Fan motor Type Low noise 3-speed fan motor

Quantity 1 1 1

Fan Type Tangential fan

Quantity 1 1 1

Coil

Row 2 2 2

Diameter mm Φ7 Φ7 Φ7

Tube pitch(a)xrow pitch(b) mm 21×13.37 21×13.37 21×13.37

Dimension (W×H×D) mm 635×315×26.74 635×315×26.74 635×315×26.74

Fin spacing mm 1.5 1.5 1.5

Fin type Hydrophilic aluminium

Circuit 5 5 5

Max. working pressure MPa 1.6 1.6 1.6

Body

Net dimensions (W×H×D) mm 915×290×229 915×290×229 915×290×229

Packing size (W×H×D) mm 1020×390×315 1020×390×315 1020×390×315

Net weight kg 13 13 13.3

Gross weight kg 16.3 16.3 16.7

Pipe connections Water inlet/outlet pipe inch G3/4 G3/4 G3/4

Drain pipe mm ODΦ20 ODΦ20 ODΦ20

Notes:

1. H: high fan speed; M: medium fan speed; L: low fan speed

2. Cooling Conditions: Entering Water 7°C, Temperature Rise 5°C, Entering Air Temperature 27°C DB,19°C WB.

Heating Conditions: Entering Water 50°C, Enter air temperature 20°C, and water flow is same to the cooling conditions.

3. Noise is tested in semi-anechoic test room.

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