Midea MRCT-075CWN1-D(C) Operating manual

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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.

Tropical, 3 phase, 380-415V, 50Hz

MCAC-RTT6S-201701

MRCT-075CWN1-D(C)

MRCT-150CWN1-D(C)

MRCT-250CWN1-D(C)

MRCT-100CWN1-D(C)

MRCT-200CWN1-D(C)

Model:

Technical Service Manual

Rooftop Package

Content

Part. 1 General information........................................................2

Part. 2 Performances..................................................................5

Part. 3 Installations...................................................................63

Part. 4 Controller.......................................................................94

MCAC-RTT6S-201701 Midea R410ATropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz

Part. 1 General information

1. Product lineup........................................................................3

2. External Appearance.............................................................3

3. Nomenclature .........................................................................4

Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701

1. Product lineup

Nominal ton

Model

Function

Air outlet

Power supply

7.5

MRCT-075CWN1-D(C)

Cooling only

Side discharge

220V 3Ph 60Hz

MRCT-100CWN1-D(C)

Cooling only

Side discharge

MRCT-150CWN1-D(C)

Cooling only

Side discharge

MRCT-200CWN1-D(C)

Cooling only

Side discharge

MRCT-250CWN1-D(C)

Cooling only

Side discharge

Notes: Please refer to specification tables for accurate cooling capacity with kW or Btu/h.

2. External Appearances

7.5ton 10ton

15ton 20ton

25ton

MCAC-RTT6S-201701 Midea R410ATropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz

3. Nomenclatures

MRCT–075 CWN1 –D(C)

Product design code

Power supply: 220V, 3Ph, 60Hz

Refrigerant type: R410A

Wired controller

Cooling only type

Nominal cooling capacity

ӿӿӿ: ӿӿӿ×0.1ton (7.5ton)

Tropical application

Side discharge type

Rooftop package unit

Midea

Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701

Part. 2 Performances

1. Features .............................................................................6

2. Specifications .....................................................................8

3. Dimensions drawings .......................................................16

4. Wiring diagrams................................................................26

5. Performance data.............................................................31

6. Electrical data...................................................................46

7. Fan performance data ......................................................47

8. Refrigerant cycle diagram.................................................58

9. Operation limits.................................................................59

10. Noise Criteria (NC) Curves..............................................60

11. Accessories......................................................................62

MCAC-RTT6S-201701 Midea R410ATropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz

1. Features

Design flexibility.

Compact design and flanges of air flow inlet and outlet as standard. It is suitable for installation

in rooftop and ground.

Durable construction.

Pre-painted exterior cabinet panels pass 1000 hours salt spray test for durability.

Weather-resistant construction with capped steams and sloped top panels design.

The rooftop package air conditioners with special anti-corrosion treatment are suitable for

seaside areas or the areas exposed to acidic substances. (It should be customized.)

Reliable scroll compressor.

Famous brand compressor, it is more reliable. No complex internal suction and discharge

valves for quieter operation and higher reliability. Compact and light-weight design, fewer

moving parts design.

Adjustable pulley

Through changing the working pitch diameter of the pulley mounted on driver shaft, in turn the

revolutions per minute of the driven shaft will increase or decrease to change air volume.

Multi-protection design.

Multi-measurement can ensure units operate normally and reliably:

System current protection;

High/low-pressure switch protection;

Temperature sensor on/off protection, etc.

The three-phase protector can be customized.

Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701

Easy to installation.

Removable access door on the electric box is standard. It is easy to move the cover of the

electric box. Only connect the wires of power supply, and no need to connect any signal wires.

Reserved external drainage port, quickly and accurately connect the rubber drainage pipe.

The unit provides external pressure gauge ports for convenient and fast checking system

pressure without removing the panel.

System self-diagnostic function.

Press the Check button in Main PCB board, and the LED display of PCB board in unit will

display the normal checking code. If the unit is in running with abnormal operation, the LED

display will show the error code.

EHK (Electrical heater kits) and air intake filter as optional.

Wired controller as standard. Besides Midea controller, other brand thermostat can be matched

as optional solution.

Centralized control function can be achieved through the centralized controller as optional.

MD-NIM01 should be connected between the rooftop package units and centralized controller.

MCAC-RTT6S-201701 Midea R410ATropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz

2. Specifications

Nominal ton

(Ton)

7.5

Model

MRCT-075CWN1-D(C)

MRCT-100CWN1-D(C)

Power supply

220V, 3Ph, 60Hz

Cooling 1

Cooling capacity

Btu/h

89,000

120,000

26.1

35.2

Power input

7.8

10.7

Cooling 2

Cooling capacity

Btu/h

69.6

100.2

20.4

29.37

Power input

8.6

12.5

Max. input consumption

11.3

17.5

Max. current

42.4

57.4

Performance

Indoor air flow

CFM

2,700

4,120

ESP

Default: 80, 0~250

Default: 90, 0~275

EER 1

Btu/h.W

11.4

11.2

EER 2

Btu/h.W

8.1

8.0

Indoor coil

Number of rows

Fin spacing

1.3

1.5

Fin type

Hydrophilic aluminum fin

Tube diameter

Φ7

Tube type

Inner grooved copper pipe

Indoor fan

Type / Quantity

Centrifugal / 1

Drive type

Direct

Belt

Motor quantity

Motor model

YDK750-6E

YE2-100L1-4-2.2KW

Motor capacitor

25µF/450V

Motor speed

RPM

1,080/1,010/930

1,700

Compressor

Type / Quantity

Scroll / 1

Model

ZP91KCE-TF5-522

ZP122KCE-TF5-522

Brand

Copeland

Capacity

26,600

36,400

Input

8,230

11,000

RLA

30.7

37.9

LRA

191

240

Refrigerant oil

1,774

2,513

Outdoor coil

Number of rows

2.5

Fin spacing

1.5

Fin type

Hydrophilic aluminum fin

Tube diameter

Φ7

Tube type

Inner grooved copper pipe

Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701

Continued:

Nominal ton

(Ton)

7.5

Model

MRCT-075CWN1-D(C)

MRCT-100CWN1-D(C)

Outdoor fan

Type / Quantity

Axial / 1

Drive type

Direct

Motor model

YS1100-6C

Fan speed

RPM

1,100

Refrigerant

Type / Volume

R410A / 3.8kg

R410A / 4.1kg

Control

Throttle valve

Sound pressure level

dB(A)

75.6

75.7

Wired controller

KJR-25B

KJR-12B/dP(T)-E

Centralized controller (Optional)

Yes

Ambient temperature (Cooling)

°C

10~52

System stage

Dimensions

Net (W×H×D)

1,475×840×1,130

1,483×1,231×1,138

Packing (W×H×D)

1,495×870×1,150

1,500×1,255×1,155

Weight

Net

235

325

Gross

240

335

Notes:

1. Nominal ton only for reference. Cooling capacity as per specifications;

2. Cooling capacity test condition: (1)

Outdoor ambient temperature: 35°C , indoor temperature: 26.7°CDB, 19.4°CWB;

Cooling capacity test condition: (2)

Outdoor ambient temperature: 46.1°C , indoor temperature: 26.7°CDB, 19.4°CWB;

3. Units are suitable for operation to ±20% of nominal indoor air flow.

4. ESP: external static pressure;

5. Specifications are subject to change without prior notice for product improvement.

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