Midea MRCT-062CWN1-R(C) User manual

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MideaR410AClimaCreatorSeries
RooftopPackage50Hz
TechnicalManual
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Models:
MRCT‐062CWN1‐R(C)
MRCT‐075CWN1‐R(C)
MRCT‐085CWN1‐R(C)
MRCT‐100CWN1‐R(C)
MRCT‐125CWN1‐R(C)
MRCT‐150CWN1‐R(C)
MRCT‐175CWN1‐R(C)
MRCT‐200CWN1‐R(C)
MRCT‐250CWN1‐R(C)
MRCT‐300CWN1‐R(C)
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Mideareservestherighttodiscontinue,orchangespecificationordesignsatanytimewithoutnoticesand
withoutincurringobligations.
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DM16‐01.01.27en

DM16‐01.01.27en  RooftopClimaCreatorseries
2 Service manual
Content
Part. 1 General information ......................................................... 3
Part. 2 Performances ................................................................... 6
Part. 3 Installations .................................................................. 100
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Rooftop ClimaCreator series DM16-01.01.27en
Service manual 3
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Part. 1 General information
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1. Product lineup ......................................................................... 4
2. External Appearance .............................................................. 4 
3. Nomenclature .......................................................................... 5
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DM16‐01.01.27en  RooftopClimaCreatorseries
4 Service manual
1. Product lineup
Nominal ton Model Function Air outlet Power supply
6.25 MRCT-062CWN1-R(C) Cooling only Side discharge 380~415V
3Ph 50Hz
7.5 MRCT-075CWN1-R(C) Cooling only Side discharge
8.5 MRCT-085CWN1-R(C) Cooling only Side discharge
10 MRCT-100CWN1-R(C) Cooling only Side discharge
12.5 MRCT-125CWN1-R(C) Cooling only Side discharge
15 MRCT-150CWN1-R(C) Cooling only Side discharge
17.5 MRCT-175CWN1-R(C) Cooling only Side discharge
20 MRCT-200CWN1-R(C) Cooling only Side discharge
25 MRCT-250CWN1-R(C) Cooling only Side discharge
30 MRCT-300CWN1-R(C) Cooling only Side discharge
Notes: Please refer to specification tables for accurate cooling capacity with kW or Btu/h.
2. External Appearances
6.2&7.5ton

Rooftop ClimaCreator series DM16-01.01.27en
Service manual 5
8.5&10ton 12.5&15ton
17.5&20ton 25&30ton
3. Nomenclatures
M R C T – 062 C W N1 – R (C)
Product design code
Power supply: 380~415V, 3Ph, 50Hz
Refrigerant type: R410A
Wired controller
Cooling only type
Nominal cooling capacity
ӿӿӿ: ӿӿӿ×1ton (6.2ton)
ӿӿ: ӿӿ×1,000Btu/h
Tropical application
Side discharge type
Rooftop package unit
Midea

DM16‐01.01.27en  RooftopClimaCreatorseries
6 Service manual
Part. 2 Performances
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1.Features ............................................................................. 7
2.Specifications .................................................................... 9
3.Dimensions drawings ..................................................... 27
4.Wiring diagrams .............................................................. 38
5.Performance data ............................................................ 46
6.Electrical data .................................................................. 76
7.Fan performance data ..................................................... 77
8.Refrigerant cycle diagram .............................................. 98
9.Operation limits ............................................................... 99
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Rooftop ClimaCreator series DM16-01.01.27en
Service manual 7
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.

DM16‐01.01.27en  RooftopClimaCreatorseries
8 Service manual
 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.

Rooftop ClimaCreator series DM16-01.01.27en
Service manual 9
2. Specifications
Nominal ton (Ton) 6.2 7.5
Model MRCT-062CWN1-R(C) MRCT-075CWN1-R(C)
Power supply \ 380~415V, 3Ph, 50Hz 380~415V, 3Ph, 50Hz
Cooling 1 Cooling capacity Btu/h 75,000 89,000 kW 22.0 26.0
Power input kW 6.6 7.9
Cooling 2 Cooling capacity Btu/h 61,400 69,600 kW 18.0 20.4
Power input kW 7.8 9.0
Max. input consumption kW 9.0 13.6
Max. current A 19.3 27.2
Performance
Indoor air flow CFM 2,800 2,830
ESP Pa Default:80; 0~250 Default: 80; 0~250
EER 1 Btu/h.W 11.4 11.3
EER 2 Btu/h.W 7.9 7.8
Indoor coil
Number of rows \ 4 3
Fin spacing mm 1.3 1.3
Fin type \ Hydrophilic aluminum fin Hydrophilic aluminum fin
Tube diameter mm Φ7 Φ7
Tube type \ Inner grooved copper pipe Inner grooved copper pipe
Indoor fan
Type / Quantity \ Centrifugal / 1 Centrifugal / 1
Drive type \ Direct Direct
Motor quantity \ 1 1
Motor model \ YDK750-4E YDK750-4E
Motor capacitor \ 25µF/450V 25µF/450V
Motor input W 1,600/1,350/1,150 1,600/1,350/1,150
Motor speed RPM 1,090/985/895 1,090/985/895
Compressor
Type \ Scroll / 1 Scroll / 1
Model \ ZP72KCE-TFD-52E HCJ106
Brand \ Copeland Danfoss
Capacity W 17,200 26,100
Input W 5,650 8,080
RLA A 12.5 14.3
LRA A 75 121.2
Refrigerant oil ml 1,774 2,460
Outdoor coil
Number of rows \ 2.5 3
Fin spacing mm 1.5 1.5
Fin type \ Hydrophilic aluminum fin Hydrophilic aluminum fin
Tube diameter mm Φ7 Φ7
Tube type \ Inner grooved copper pipe Inner grooved copper pipe

DM16‐01.01.27en  RooftopClimaCreatorseries
10 Service manual
Continued:
Nominal ton (Ton) 6.2 7.5
Model MRCT-062CWN1-R(C) MRCT-075CWN1-R(C)
Outdoor fan
Type \ Axial Axial
Quantity \ 1 1
Drive type \ Direct Direct
Motor quantity \ 1 1
Motor model \ YDK450-6C YDK580-6C
Motor capacitor \ 25µF/450V 25µF/450V
Motor input W 757/403 820/505
Fan speed RPM 840/550 870/640
Refrigerant
Type \ R410A R410A
Volume kg 4.0 3.7
Control \ Throttle valve Throttle valve
Wired controller \ KJR-25B KJR-25B
Centralized controller (Optional) \ No No
Ambient temperature (Cooling) °C 10~52 10~52
System stage \ 1 1
Dimensions Net (W×H×D) mm 1,475×840×1,130 1,475×840×1,130
Packing (W×H×D) mm 1,495×870×1,150 1,495×870×1,150
Weight Net kg 223 231
Gross kg 228 236
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.