Midea MRCT-062CWN1-R(C) Technical Manual
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Midea MRCT-062CWN1-R(C) Technical Manual

R410a climacreator series rooftop package 50hz
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Midea R410A ClimaCreator Series 
 
 
 
 
 
Midea reserves the right to discontinue, or change specification or designs at any time without notices and 
without incurring obligations. 
 
Rooftop Package 50Hz 
Technical Manual
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) 
 
 
 
 
 
 
 
 
 
DM16‐01.01.27en 

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Summary of Contents for Midea MRCT-062CWN1-R(C)

  • Page 1 DM16‐01.01.27en        Midea R410A ClimaCreator Series  Rooftop Package 50Hz    Technical Manual         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)            Midea reserves the right to discontinue, or change specification or designs at any time without notices and  without incurring obligations.     ...
  • Page 2 DM16‐01.01.27en    Rooftop ClimaCreator series  Content Part. 1 General information ............3  Part. 2 Performances ..............6  Part. 3 Installations ..............100                                          Service manual...

  • Page 3: Part. 1 General Information

    Rooftop ClimaCreator series DM16-01.01.27en   Part. 1 General information   1. Product lineup ................. 4  2. External Appearance .............. 4  3. Nomenclature ................5                                   ...

  • Page 4: Product Lineup

    DM16‐01.01.27en    Rooftop ClimaCreator series  1. Product lineup Nominal ton Model Function Air outlet Power supply MRCT-062CWN1-R(C) Cooling only Side discharge 380~415V 6.25 3Ph 50Hz MRCT-075CWN1-R(C) Cooling only Side discharge MRCT-085CWN1-R(C) Cooling only Side discharge MRCT-100CWN1-R(C) Cooling only Side discharge 12.5 MRCT-125CWN1-R(C) Cooling only Side discharge MRCT-150CWN1-R(C)

  • Page 5: Nomenclature

    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 Service manual...

  • Page 6: Table Of Contents

    DM16‐01.01.27en    Rooftop ClimaCreator series  Part. 2 Performances   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. ...

  • Page 7: Features

    Rooftop ClimaCreator series DM16-01.01.27en 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.
  • Page 8 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. ...

  • Page 9: Specifications

    Rooftop ClimaCreator series DM16-01.01.27en 2. Specifications Nominal ton (Ton) Model MRCT-062CWN1-R(C) MRCT-075CWN1-R(C) Power supply 380~415V, 3Ph, 50Hz 380~415V, 3Ph, 50Hz Btu/h 75,000 89,000 Cooling capacity Cooling 1 22.0 26.0 Power input Btu/h 61,400 69,600 Cooling capacity Cooling 2 18.0 20.4 Power input Max.
  • Page 10 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: Nominal ton (Ton) Model MRCT-062CWN1-R(C) MRCT-075CWN1-R(C) Type Axial Axial Quantity Drive type Direct Direct Motor quantity Outdoor fan Motor model YDK450-6C YDK580-6C Motor capacitor 25µF/450V 25µF/450V Motor input 757/403 820/505 Fan speed 840/550 870/640 Type R410A R410A Refrigerant Volume...
  • Page 11 Rooftop ClimaCreator series DM16-01.01.27en Nominal ton (Ton) Model MRCT-085CWN1-R(C) Power Supply 380~415V, 3Ph, 50Hz Btu/h 102,000 Cooling capacity Cooling 1 30.0 Power input Btu/h 80,700 Cooling capacity Cooling 2 23.7 Power input 10.3 Max. input consumption 14.8 Max. current 29.2 Indoor air flow 3,500 Default: 80;...
  • Page 12 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: Nominal ton (Ton) Model MRCT-085CWN1-R(C) Type Axial Quantity Drive type Direct Motor quantity Outdoor fan Motor model YDK580-6C Motor capacitor 25µF/450V Motor input 820/505 Fan speed 870/640 Type R410A Refrigerant Volume 2.25+2.25 Control Throttle valve Wired controller KJR-12B/dP(T)-E Centralized controller (Optional) Ambient temperature (Cooling)
  • Page 13 Rooftop ClimaCreator series DM16-01.01.27en Nominal ton (Ton) Model MRCT-100CWN1-R(C) Power supply 380~415V, 3Ph, 50Hz Btu/h 120,000 Cooling capacity Cooling 1 35.0 Power input 10.7 Btu/h 100,200 Cooling capacity Cooling 2 29.4 Power input 12.6 Max. input consumption 18.0 Max. current 34.1 Indoor air flow 4,100...
  • Page 14 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: Nominal ton (Ton) Model MRCT-100CWN1-R(C) Type Axial Quantity Drive type Direct Motor quantity Outdoor fan Motor model YS1100-6P Motor capacitor Motor input Fan speed 1,120/965 Type R410A Refrigerant Volume 2.35+2.35 Control Throttle valve Wired controller KJR-12B/dP(T)-E Centralized controller (Optional) Ambient temperature (Cooling) °C...
  • Page 15 Rooftop ClimaCreator series DM16-01.01.27en Nominal ton (Ton) 12.5 Model MRCT-125CWN1-R(C) Power supply 380~415V, 3Ph, 50Hz Btu/h 150,000 Cooling capacity Cooling 1 44.0 Power input 13.3 Btu/h 125,400 Cooling capacity Cooling 2 36.8 Power input 16.1 Max. input consumption 21.0 Max. current 41.2 Indoor air flow 5,500...
  • Page 16 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: Nominal ton (Ton) 12.5 Model MRCT-125CWN1-R(C) Type Axial Quantity Drive type Direct Motor quantity Outdoor fan Motor model YDK550-6E Motor capacitor 25µF/450V Motor input 740/640 Fan speed 880/810 Type R410A Refrigerant Volume 2.8+1.7 Control Throttle valve Wired controller KJR-12B/dP(T)-E Centralized controller (Optional)
  • Page 17 Rooftop ClimaCreator series DM16-01.01.27en Nominal ton (Ton) Model MRCT-150CWN1-R(C) Power supply 380~415V, 3Ph, 50Hz Btu/h 180,000 Cooling capacity Cooling 1 53.0 Power input 16.7 Btu/h 146,000 Cooling capacity Cooling 2 42.8 Power input 18.7 Max. input consumption 25.0 Max. current 48.0 Indoor air flow 7,000...
  • Page 18 DM16‐01.01.27en    Rooftop ClimaCreator series  Nominal ton (Ton) Model MRCT-150CWN1-R(C) Type Axial Quantity Drive type Direct Motor quantity Outdoor fan Motor model YS1100-6 Motor capacitor Motor input Fan speed 1,120/965 Type R410A Refrigerant Volume 4.9+2.25 Control Throttle valve Wired controller KJR-12B/dP(T)-E Centralized controller (Optional) Ambient temperature (Cooling) °C 10~52...
  • Page 19 Rooftop ClimaCreator series DM16-01.01.27en Nominal ton (Ton) 17.5 Model MRCT-175CWN1-R(C) Power supply 380~415V, 3Ph, 50Hz Btu/h 208,000 Cooling capacity Cooling 1 61.0 Power input 19.1 Btu/h 181,100 Cooling capacity Cooling 2 53.1 Power input 22.6 Max. input consumption 26.5 Max. current 55.0 Indoor air flow 7,600...
  • Page 20 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: Nominal ton (Ton) 17.5 Model MRCT-175CWN1-R(C) Type Axial Quantity Drive type Direct Motor quantity Outdoor fan Motor model YDK550-6E Motor capacitor 25µF/450V Motor input 740/640 Fan speed 880/810 Type R410A Refrigerant Volume 3.7+3.7 Control Throttle valve Wired controller KJR-12B/dP(T)-E Centralized controller (Optional)
  • Page 21 Rooftop ClimaCreator series DM16-01.01.27en Nominal ton (Ton) Model MRCT-200CWN1-R(C) Power supply 380~415V, 3Ph, 50Hz Btu/h 240,000 Cooling capacity Cooling 1 70.0 Power input 22.6 Btu/h 199,200 Cooling capacity Cooling 2 58.4 Power input 25.1 Max. input consumption 33.0 Max. current 66.9 Indoor air flow 8,800...
  • Page 22 DM16‐01.01.27en    Rooftop ClimaCreator series  Nominal ton (Ton) Model MRCT-200CWN1-R(C) Type Axial Quantity Drive type Direct Motor quantity Outdoor fan Motor model YS1100-6-3 Motor capacitor Motor input Fan speed 1,090/944 Type R410A Refrigerant Volume 5.65+5.65 Control Throttle valve Wired controller KJR-12B/dP(T)-E Centralized controller (Optional) Ambient temperature (Cooling) °C 10~52...
  • Page 23 Rooftop ClimaCreator series DM16-01.01.27en Nominal ton (Ton) Model MRCT-250CWN1-R(C) Power supply 380~415V, 3Ph, 50Hz Btu/h 300,000 Cooling capacity Cooling 1 87.0 Power input 28.0 Btu/h 251,700 Cooling capacity Cooling 2 73.8 Power input 32.0 Max. input consumption 40.5 Max. current 77.4 Indoor air flow 10,000...
  • Page 24 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: Nominal ton (Ton) Model MRCT-250CWN1-R(C) Type Axial Quantity Drive type Direct Motor quantity Outdoor fan Motor model YS1500-6-2 Motor capacitor Motor input Fan speed Type R410A Refrigerant Volume Control Capillary Wired controller KJR-12B/dP(T)-E Centralized controller (Optional) Ambient temperature (Cooling) °C 10~52...
  • Page 25 Rooftop ClimaCreator series DM16-01.01.27en Nominal ton (Ton) Model MRCT-300CWN1-R(C) Power supply 380~415V, 3Ph, 50Hz Btu/h 360,000 Cooling capacity Cooling 1 105.0 Power input 34.3 Btu/h 336,300 Cooling capacity Cooling 2 98.6 Power input 41.8 Max. input consumption 49.5 Max. current 94.1 Indoor air flow 12,000...
  • Page 26 DM16‐01.01.27en    Rooftop ClimaCreator series  Nominal ton (Ton) Model MRCT-300CWN1-R(C) Type Axial Quantity Drive type Direct Motor quantity Outdoor fan Motor model YS1500-6-2 Motor capacitor Motor input Fan speed Type R410A Refrigerant Volume 7.6+7.6 Control Capillary Wired controller KJR-12B/dP(T)-E Centralized controller (Optional) Ambient temperature (Cooling) °C 10~52...

  • Page 27: Dimensions Drawings

    Rooftop ClimaCreator series DM16-01.01.27en 3. Dimensions drawings MRCT-062CWN1-R(C), MRCT-075CWN1-R(C): (Unit: mm) Service manual...
  • Page 28 DM16‐01.01.27en    Rooftop ClimaCreator series  Service manual...
  • Page 29 Rooftop ClimaCreator series DM16-01.01.27en MRCT-085CWN1-R(C), MRCT-100CWN1-R(C): (Unit: mm) Service manual...
  • Page 30 DM16‐01.01.27en    Rooftop ClimaCreator series  Service manual...
  • Page 31 Rooftop ClimaCreator series DM16-01.01.27en MRCT-125CWN1-R(C), MRCT-150CWN1-R(C): (Unit: mm) Service manual...
  • Page 32 DM16‐01.01.27en    Rooftop ClimaCreator series  Service manual...
  • Page 33 Rooftop ClimaCreator series DM16-01.01.27en MRCT-175CWN1-R(C), MRCT-200CWN1-R(C): (Unit: mm) Service manual...
  • Page 34 DM16‐01.01.27en    Rooftop ClimaCreator series  Service manual...
  • Page 35 Rooftop ClimaCreator series DM16-01.01.27en Service manual...
  • Page 36 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-250CWN1-R(C), MRCT-300CWN1-R(C): (Unit: mm) Service manual...
  • Page 37 Rooftop ClimaCreator series DM16-01.01.27en Service manual...

  • Page 38: Wiring Diagrams

    DM16‐01.01.27en    Rooftop ClimaCreator series  4. Wiring diagrams MRCT-062CWN1-R(C), MRCT-075CWN1-R(C): Service manual...
  • Page 39 Rooftop ClimaCreator series DM16-01.01.27en MRCT-085CWN1-R(C): Service manual...
  • Page 40 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-100CWN1-R(C): Service manual...
  • Page 41 Rooftop ClimaCreator series DM16-01.01.27en MRCT-125CWN1-R(C): Service manual...
  • Page 42 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-150CWN1-R(C): Service manual...
  • Page 43 Rooftop ClimaCreator series DM16-01.01.27en MRCT-175CWN1-R(C): Service manual...
  • Page 44 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-200CWN1-R(C): Service manual...
  • Page 45 Rooftop ClimaCreator series DM16-01.01.27en MRCT-250CWN1-R(C), MRCT-300CWN1-R(C): Service manual...

  • Page 46: Performance Data

    DM16‐01.01.27en    Rooftop ClimaCreator series  5. Performance data MRCT-062CWN1-R(C) Cooling capacity: Gross Cooling Capacity Ambient DB(°C) 29.4 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 65.4 57.1 5614.7 75.8 42.6 6170.5 79.0 26.7 7560.1 62.1 54.5 5930.5 68.0 41.2 6189.5 78.4 25.8 7970.3...
  • Page 47 Rooftop ClimaCreator series DM16-01.01.27en MRCT-062CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 40.6 46.1 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 56.6 51.8 6506.2 67.0 38.8 6690.0 76.2 24.5 8597.9 48.9 47.1 7093.2 58.5 34.0 7380.9 70.4 21.0 8840.8...
  • Page 48 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-062CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 51.7 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 47.1 45.3 7423.2 58.1 33.6 7416.5 68.6 19.2 9396.0 44.3 42.7 7922.3 53.2 30.7 7784.9 64.1 18.7 10013.3 26.7 48.2...
  • Page 49 Rooftop ClimaCreator series DM16-01.01.27en MRCT-075CWN1-R(C) Cooling capacity: Gross Cooling Capacity Ambient DB(°C) 29.4 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 77.6 67.8 7012.8 89.9 50.7 7460.0 93.7 31.9 8494.4 73.7 64.7 7576.0 80.7 49.0 7882.8 92.9 30.8 8930.9 26.7 79.4...
  • Page 50 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-075CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 40.6 46.1 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 67.2 61.5 7750.7 79.5 46.1 7917.1 90.4 29.3 9650.3 54.7 52.6 8307.4 66.1 37.2 8611.1 80.2 21.8 9121.5 26.7...
  • Page 51 Rooftop ClimaCreator series DM16-01.01.27en MRCT-075CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 51.7 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 53.7 51.6 8637.4 65.6 36.7 8635.8 79.2 20.8 10369.3 49.3 47.4 9132.2 59.8 33.3 8986.5 72.7 19.1 11076.9 26.7...
  • Page 52 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-085CWN1-R(C) Cooling capacity: Gross Cooling Capacity Ambient DB(°C) 29.4 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 89.1 77.0 8400.4 99.8 56.7 8825.0 103.6 34.9 9516.1 82.1 73.5 8742.2 95.7 54.7 8936.5 102.7 33.7 10074.2 26.7 91.0 78.7...
  • Page 53 Rooftop ClimaCreator series DM16-01.01.27en MRCT-085CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 40.6 46.1 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 75.0 69.9 9079.1 88.5 51.9 9313.0 100.1 32.0 10688.9 62.9 61.4 9412.1 75.7 43.3 9883.7 91.1 25.1 10864.4...
  • Page 54 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-085CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 51.7 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 60.8 59.3 9742.1 75.5 43.1 9903.4 89.0 23.0 11425.7 56.2 54.8 10237.3 67.8 38.4 10208.0 81.8 21.8 12043.8 26.7 62.3...
  • Page 55 Rooftop ClimaCreator series DM16-01.01.27en MRCT-100CWN1-R(C) Cooling capacity: Gross Cooling Capacity Ambient DB(°C) 29.4 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 106.6 92.5 9374.6 119.1 68.9 10455.4 123.6 43.4 10837.3 98.5 88.4 8753.4 114.4 66.5 10317.4 122.5 42.0 10828.7 26.7 109.0...
  • Page 56 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-100CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 40.6 46.1 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 90.2 84.3 10064.9 106.0 63.3 11439.1 119.5 40.0 12606.2 80.0 78.3 10694.2 95.0 57.2 12146.0 112.9 35.9 13554.7 26.7...
  • Page 57 Rooftop ClimaCreator series DM16-01.01.27en MRCT-100CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 51.7 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 77.8 76.1 10815.0 93.2 55.4 12301.3 110.7 33.7 13675.5 72.2 70.6 11720.9 85.8 51.4 13095.1 102.1 32.1 14322.6 26.7...
  • Page 58 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-125CWN1-R(C) Cooling capacity: Gross Cooling Capacity Ambient DB(°C) 29.4 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 130.8 10392.2 145.8 85.5 11818.4 151.2 54.9 12325.4 121.1 10483.5 140.1 82.7 12499.8 149.9 53.3 13222.4 26.7 133.4 10700.9 148.8 12153.4...
  • Page 59 Rooftop ClimaCreator series DM16-01.01.27en MRCT-125CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 40.6 46.1 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 111.1 12036.3 130.1 78.8 13848.3 146.3 50.9 15387.9 100.6 98.5 13610.7 118.6 73.2 15331.9 140.0 47.6 17382.1 26.7...
  • Page 60 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-125CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 51.7 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 97.1 95.0 13671.4 117.7 72.3 15356.4 136.5 44.1 17160.9 91.2 89.3 14915.6 107.5 66.2 16489.3 127.1 43.1 18335.4 26.7 99.1...
  • Page 61 Rooftop ClimaCreator series DM16-01.01.27en MRCT-150CWN1-R(C) Cooling capacity: Gross Cooling Capacity Ambient DB(°C) 29.4 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 163.5 15041.6 183.2 15388.1 193.5 72.1 15888.1 153.3 15898.0 171.6 99.8 16270.9 188.7 68.9 16770.9 26.7 165.6 15321.7 185.5 15668.2...
  • Page 62 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-150CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 40.6 46.1 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 142.6 16610.8 163.5 94.5 17014.1 185.6 65.5 17514.1 117.6 17211.6 141.0 85.6 18401.2 160.6 49.3 18901.2 26.7 146.4 16840.9...
  • Page 63 Rooftop ClimaCreator series DM16-01.01.27en MRCT-150CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 51.7 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 114.6 98.7 17039.4 140.5 85.1 18421.9 157.6 46.3 18921.9 112.6 97.3 16867.3 135.0 81.8 18766.8 154.0 46.9 19266.8 26.7...
  • Page 64 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-175CWN1-R(C) Cooling capacity: Gross Cooling Capacity Ambient DB(°C) 29.4 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 190.7 13977.6 213.3 16251.8 225.1 85.9 17368.9 179.0 15723.7 200.0 17997.9 219.6 82.2 19115.0 26.7 193.1 14237.2 215.9 16511.4 229.4 17628.5...
  • Page 65 Rooftop ClimaCreator series DM16-01.01.27en MRCT-175CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 40.6 46.1 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 166.7 17469.9 190.7 19744.0 216.0 78.3 22124.4 146.3 19500.2 173.2 21633.7 195.6 68.0 23888.2 26.7 171.1 17729.5 193.7...
  • Page 66 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-175CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 51.7 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 140.5 20152.1 170.1 21847.9 189.8 62.2 24415.4 140.6 21536.1 166.3 97.2 22193.9 188.1 65.3 24616.4 26.7 146.2 20411.7 172.9 22107.5...
  • Page 67 Rooftop ClimaCreator series DM16-01.01.27en MRCT-200CWN1-R(C) Cooling capacity: Gross Cooling Capacity Ambient DB(°C) 29.4 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 216.2 20278.5 242.2 21474.3 225.9 95.5 22772.2 202.7 20646.9 227.0 21842.7 249.5 91.3 23140.6 26.7 218.8 20347.6 245.2 21613.6 260.8...
  • Page 68 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-200CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 40.6 46.1 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 188.6 22346.6 216.2 22790.6 245.5 86.7 24988.5 178.9 23928.7 192.7 24372.7 218.7 71.7 26993.8 26.7 193.5 22486.0 219.5 23000.2...
  • Page 69 Rooftop ClimaCreator series DM16-01.01.27en MRCT-200CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 51.7 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 175.3 24299.7 191.8 24743.7 215.1 68.1 27360.2 152.1 24849.7 181.2 25293.7 205.8 67.0 27760.2 26.7 181.8 24439.1 194.9 24953.3...
  • Page 70 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-250CWN1-R(C) Cooling capacity: Gross Cooling Capacity Ambient DB(°C) 29.4 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 266.7 24732.7 297.9 25232.7 309.2 25809.0 246.4 24500.5 273.7 27210.1 306.4 28599.0 26.7 272.2 24932.6 304.1 25432.6 315.5 26013.3 251.5 24682.6...
  • Page 71 Rooftop ClimaCreator series DM16-01.01.27en MRCT-250CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 40.6 46.1 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 225.7 26487.9 265.2 29197.5 298.9 32028.6 198.2 28475.3 235.7 31184.9 280.4 87.9 36055.2 26.7 230.4 26670.0 270.7 29397.4...
  • Page 72 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-250CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 51.7 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 195.5 29071.5 233.0 31781.1 277.7 85.2 36798.7 175.5 30462.7 209.6 33172.3 250.3 75.3 38458.3 26.7 199.8 29253.6 238.0 31981.0 283.7...
  • Page 73 Rooftop ClimaCreator series DM16-01.01.27en MRCT-300CWN1-R(C) Cooling capacity: Gross Cooling Capacity Ambient DB(°C) 29.4 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 319.7 28343.2 357.8 31730.7 377.7 32822.2 300.0 28735.9 345.7 33314.0 368.5 34967.1 26.7 323.6 28952.0 362.1 31948.1 384.9 33274.4 307.2...
  • Page 74 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-300CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 40.6 46.1 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 279.3 35380.5 319.7 39383.2 362.5 44851.9 271.5 34444.3 326.8 40609.3 344.7 43641.9 26.7 286.5 36267.6 324.6 40257.9 365.0 45135.2...
  • Page 75 Rooftop ClimaCreator series DM16-01.01.27en MRCT-300CWN1-R(C) Cooling capacity: (Continued) Gross Cooling Capacity Ambient DB(°C) 51.7 Indoor WB(°C) 16.1 19.4 22.8 16.1 19.4 22.8 DB(°C) 23.9 269.5 35335.6 324.8 41708.3 342.7 44844.6 245.9 38351.3 289.2 44188.2 325.9 50727.1 26.7 279.0 37172.1 329.4 42630.0 347.5 45448.2...

  • Page 76: Electrical Data

    DM16‐01.01.27en    Rooftop ClimaCreator series  6. Electrical data Power Supply Compressor Eva.Fan Motor Con. Fan Motor Model TOCA Qty. (Each) (Each) MRCT-062CWN1-R(C) 23.5 28.9 33.2 5.65 7.22 1.62 3.65 0.83 MRCT-075CWN1-R(C) 29.4 36.5 43.7 121.2 14.3 8.08 7.18 1.61 3.93 0.88 MRCT-085CWN1-R(C) 29.6 36.3 47.2...

  • Page 77: Fan Performance Data

    Rooftop ClimaCreator series DM16‐01.01.27en 7. Fan performance data MRCT-062CWN1-R(C) Static Pressure Item High speed Medium speed Low speed 1,001 Fan speed (rpm) Power input (W) 1,665 1,386 1,164 Air flow (CFM) 3,001 2,647 2,356 1,063 Fan speed (rpm) 50Pa Power input (W) 1,607 1,341 1,133...
  • Page 78 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-075CWN1-R(C) Static Pressure Item High speed Medium speed Low speed 1,035 Fan speed (rpm) Power input (W) 1,716 1,432 1,197 Air flow (CFM) 3,074 2,697 2,403 1,081 Fan speed (rpm) 50Pa Power input (W) 1,652 1,409 1,160 Air flow (CFM) 2,981 2,596...
  • Page 79 Rooftop ClimaCreator series DM16‐01.01.27en Blower drive options Motor Blower Fan speed Model Pulley pitch Dia. Pulley pitch Dia. range (rpm) (inch) (inch) Min. Max. MRCT-085CWN1-R(C) 1,400 4.53~5.25 8.35 1,400 4.53~5.25 1,016 7.48 MRCT-100CWN1-R(C) MRCT-125CWN1-R(C) 1,420 4.53~5.25 8.82 MRCT-150CWN1-R(C) 1,440 4.53~5.25 1,112 7.48 1,440 4.53~5.25 1,045...
  • Page 80 Cross check the dimension ‘X’, and it stands for regulation space of motor pulley. In this case, X = 1mm. Pulley pitch factory set point: the table, No. of turns = 1.5N. Video for Variable Speed Pulley Operating Guidelines Click for video: http://video.midea.com/public/2016/01/29/20160129_1528c9ec886_r1.mp4 Scan for video: (Only for iPhone, iPad, etc.) Service manual...
  • Page 81 Rooftop ClimaCreator series DM16‐01.01.27en MRCT-085CWN1-R(C) 0.25 0.75 1.25 1.75 (Pa) Fan speed (rpm) 1,790 1,720 1,710 1,665 1,620 1,560 1,500 1,445 1,390 Power input (W) Air flow (CFM) 4,320 4,213 4,166 4,130 4,094 4,041 3,988 3,946 3,905 Fan speed (rpm) 1,710 1,640 1,630 1,590 1,550...
  • Page 82 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-100CWN1-R(C) 0.25 0.75 1.25 1.75 (Pa) Fan speed (rpm) 2,020 1,945 1,870 Power input (W) 4,571 4,500 4,428 Air flow (CFM) Fan speed (rpm) Power input (W) 2,010 1,930 1,855 1,780 Air flow (CFM) 4,442 4,398 4,323 4,248 Fan speed (rpm) Power input (W)
  • Page 83 Rooftop ClimaCreator series DM16‐01.01.27en MRCT-125CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 (Pa) Fan speed (rpm) Power input (W) 3,530 3,445 3,360 3,225 3,090 3,000 2,910 2,810 2,710 2,620 2,530 Air flow (CFM) 6,773 6,718 6,662 6,575 6,487 6,395 6,302 6,230 6,158 6,103 6,049 Fan speed (rpm) 3,415 3,323...
  • Page 84 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: MRCT-125CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 (Pa) Fan speed (rpm) Power input (W) 2,470 2,370 2,270 2,170 2,070 1,960 1,850 1,775 1,700 Air flow (CFM) 4,917 4,786 4,654 4,571 4,488 4,335 4,182 4,040 3,898 Fan speed (rpm) 2,295 2,203 2,110...
  • Page 85 Rooftop ClimaCreator series DM16‐01.01.27en MRCT-150CWN1-R(C) 0.25 0.75 1.25 1.75 (Pa) Fan speed (rpm) 1,008 Power input (W) 5,146 4,968 4,790 4,575 4,360 4,155 3,950 Air flow (CFM) 7,928 7,867 7,805 7,686 7,566 7,452 7,338 Fan speed (rpm) 1,014 1,003 5,043 4,824 4,605 4,418 4,230 4,025...
  • Page 86 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: MRCT-150CWN1-R(C) 0.25 0.75 1.25 1.75 (Pa) Fan speed (rpm) 1,082 1,074 1,067 1,059 1,051 1,044 1,036 1,028 1,020 Power input (W) 3,990 3,865 3,740 3,610 3,480 3,340 3,200 3,085 2,970 Air flow (CFM) 6,418 6,354 6,291 6,159 6,027 5,911...
  • Page 87 Rooftop ClimaCreator series DM16‐01.01.27en MRCT-175CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 (Pa) Fan speed (rpm) Power input (W) 4,751 4,857 4,962 4,643 4,323 4,216 4,109 3,960 3,811 Air flow (CFM) 9,837 9,896 9,955 9,722 9,489 9,498 9,507 9,346 9,185 Fan speed (rpm) 4,580 4,683 4,787 4,494...
  • Page 88 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: MRCT-175CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 (Pa) Fan speed (rpm) 1,021 1,012 1,004 Power input (W) 3,332 3,281 3,229 3,328 3,427 3,143 2,859 2,707 2,555 2,443 2,330 Air flow (CFM) 7,454 7,272 7,090 7,215 7,339 7,044 6,748 6,561 6,374...
  • Page 89 Rooftop ClimaCreator series DM16‐01.01.27en MRCT-200CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 2.75 (Pa) Fan speed (rpm) 1,194 1,181 1,168 1,154 1,140 1,127 1,113 1,098 1,081 Power input (W) 6,951 6,710 6,468 6,266 6,063 5,831 5,599 5,422 5,188 Air flow (CFM) 11,210 11,104 10,997 10,872 10,746 10,623...
  • Page 90 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: MRCT-200CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 2.75 (Pa) Fan speed (rpm) 1,261 1,244 1,232 1,218 1,204 1,190 1,177 1,163 1,149 1,135 1,121 1,106 1,093 Power input (W) 6,511 6,332 6,169 5,929 5,607 5,391 5,175 4,953 4,731 4,545 4,358 4,107...
  • Page 91 Rooftop ClimaCreator series DM16‐01.01.27en Continued: MRCT-200CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 2.75 (Pa) Fan speed (rpm) 1,276 1,262 1,248 1,235 1,223 Power input (W) 4,546 4,243 3,842 3,731 3,169 Air flow (CFM) 7,459 6,935 6,339 6,285 5,318 Fan speed (rpm) 1,280 1,267 1,254 3,982 3,457...
  • Page 92 DM16‐01.01.27en    Rooftop ClimaCreator series  MRCT-250CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 2.75 (Pa) Fan speed (rpm) 1,075 1,059 1,044 1,034 1,026 1,009 1,002 Power input (W) 6,962 6,840 6,589 6,382 6,068 5,930 5,651 5,544 5,232 5,085 4,765 4,893 4,734 Air flow (CFM) 12,304 12,345 12,115...
  • Page 93 Rooftop ClimaCreator series DM16‐01.01.27en Continued: MRCT-250CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 2.75 (Pa) Fan speed (rpm) 1,077 1,064 1,047 1,038 1,032 1,015 1,006 Power input (W) 5,613 5,449 4,984 4,995 4,746 4,455 4,382 4,203 3,862 3,683 3,548 3,645 3,512 Air flow (CFM) 10,300 10,229 9,839...
  • Page 94 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: MRCT-250CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 2.75 (Pa) Fan speed (rpm) 1,085 1,073 1,061 1,050 1,038 1,025 1,011 Power input (W) 3,975 3,744 3,513 3,282 3,051 2,940 3,024 Air flow (CFM) 7,219 6,776 6,332 5,889 5,445 5,375 5,815 Fan speed (rpm)
  • Page 95 Rooftop ClimaCreator series DM16‐01.01.27en MRCT-300CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 2.75 (Pa) Fan speed (rpm) 1,106 1,090 1,074 1,053 1,032 1,027 1,022 Power input (W) 8,203 7,899 7,595 7,256 6,917 6,894 6,872 Air flow (CFM) 13,393 13,210 13,026 12,794 12,563 12,499 12,434 Fan speed (rpm) 1,133 1,133...
  • Page 96 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: MRCT-300CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 2.75 (Pa) Fan speed (rpm) 1,172 1,166 1,158 1,152 1,144 1,144 1,114 1,100 1,087 1,064 1,041 1,036 1,032 Power input (W) 9,364 8,711 8,385 7,748 7,426 7,426 6,467 6,083 5,699 5,468 5,236 5,210...
  • Page 97 Rooftop ClimaCreator series DM16‐01.01.27en Continued: MRCT-300CWN1-R(C) 0.25 0.75 1.25 1.75 2.25 2.75 (Pa) Fan speed (rpm) 1,188 1,182 1,171 1,164 1,154 1,139 1,125 Power input (W) 7,328 6,237 6,046 5,347 5,185 4,755 4,324 Air flow (CFM) 10,187 8,913 9,238 8,209 8,250 7,756 7,262 Fan speed (rpm) 1,191...

  • Page 98: Refrigerant Cycle Diagram

    DM16‐01.01.27en    Rooftop ClimaCreator series  8. Refrigerant cycle diagram 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):   Service manual...

  • Page 99: Operation Limits

    Rooftop ClimaCreator series DM16‐01.01.27en 9. Operation limits     Outdoor temperature Indoor temperature Cooling only mode 10°C~52°C 17°C~31°C Room relative humidity should be less than 80%. If the unit operates in excess, the surface of the unit may attract condensation.  Service manual...

  • Page 100: Part. 3 Installations

    DM16‐01.01.27en    Rooftop ClimaCreator series  Part. 3 Installations   General information ............... 101     Recommendations ..............102     Lifting ..................103     Installation ................104     Condensate drainage ............. 105     Duct work ................106     Electrical wiring ..............

  • Page 101: General Information

    Rooftop ClimaCreator series DM16‐01.01.27en 1. General information Warning and cautions appear at appropriate locations throughout this manual. Read these carefully, please. Caution:  Read this entire manual before beginning installation procedures.  Body injury can result from high voltage electrical components, fast moving fans. For protection from these inherent hazards during installation and servicing, the electrical supply must be disconnected.

  • Page 102: Recommendations

    DM16‐01.01.27en    Rooftop ClimaCreator series  2. Recommendations 2.1 Horizontal airflow application  These units are designed and certified for outdoor installation. These units may be installed directly on wood flooring or on Class A, Class B and Class C roof covering material. ...

  • Page 103: Lifting

    Rooftop ClimaCreator series DM16‐01.01.27en  Any reduction of the unit clearances indicated in these pictures may result in condenser coil starvation or the recirculation of warm condenser air. Actual clearances which appear to be inadequate should be reviewed. 3. Lifting  Rigging cables should have adequate capability to resist 3 times weight of unit. Before lift, please check and ensure that hooks are holding tightly to unit and lifting angles are no less than 60°...

  • Page 104: Installation

    DM16‐01.01.27en    Rooftop ClimaCreator series  4. Installation 4.1 For roof top applications using a field fabricated frame and ducts:  The frame must be located and secured by bolting or welding to the roof. Flashing is required.  The hole in the roof must be prepared in advance of installing the unit. ...

  • Page 105: Condensate Drainage

    Rooftop ClimaCreator series DM16‐01.01.27en  Attach the supply and return air ducts to the unit.  Insulate any ductwork outside of the structure with at least 2 inches of insulation and weatherproof. There must be a weatherproof seal where the duct enters the structure. ...

  • Page 106: Duct Work

    DM16‐01.01.27en    Rooftop ClimaCreator series  6. Duct work  All conditioned air ductwork should be insulated to minimize heating and cooling duct losses. Use a minimum of 2 inches of insulation with a vapor barrier. The outside ductwork must be weatherproofed between the unit and the building. ...
  • Page 107 Rooftop ClimaCreator series DM16‐01.01.27en  Main power wiring to the unit control wiring between the control center and the unit, and earth wiring are required in the field.  The following components are required: main power fuses; conduit coupling. Wire and fuse sizes should be selected in accordance with national and standard, taking the ...
  • Page 108 DM16‐01.01.27en    Rooftop ClimaCreator series  Model Wires for power supply Type of wires 3 × UL1015 9AWG MRCT-062CWN1-R(C) 3×6mm² + 2×3mm² 2 × UL1015 12AWG 3 × UL1015 7AWG MRCT-075CWN1-R(C) 3×10mm² + 2×6mm² 2 × UL1015 9AWG 3 × UL1015 7AWG MRCT-085CWN1-R(C) 3×10mm²...
  • Page 109 Rooftop ClimaCreator series DM16‐01.01.27en 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): The standard wired controller model of these units is KJR-12B/dp(T)-E. When KJR-12B is connected, the switch SW3 should be set to ON. MRCT-062CWN1-R(C), MRCT-075CWN1-R(C): The standard wired controller model of these units is KJR-25B. The standard wired controller model of these units is KJR-23B.

  • Page 110: Start-Up

    DM16‐01.01.27en    Rooftop ClimaCreator series   Wired controller wiring diagram (Optional wired controller) MRCT-062CWN1-R(C), MRCT-075CWN1-R(C):  These units cannot directly connect with wired controller KJR-120B. If these units connect with KJR-120B, it should be customized to change the main PCB board of the unit. 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):...

  • Page 111: Safety Control

    Rooftop ClimaCreator series DM16‐01.01.27en necessary?  Does the condenser fan and indoor blower fan free without rubbing, and are they tight on the shafts? Are all covers and access panels in place to prevent air loss and safety hazards?  Starting the unit: ...
  • Page 112 DM16‐01.01.27en    Rooftop ClimaCreator series   High pressure and low pressure protection : When high pressure is equal or higher than 638 Psi, and lower pressure is equal or lower than 21Psi, the unit will stop.       Error & protection code ...
  • Page 113 Rooftop ClimaCreator series DM16‐01.01.27en Error Eeprom error Protection Over-current protection of compressor in system A Protection Over-current protection of compressor in system B Protection Over-current protection of indoor side fan motor Continued : Type Content Code Remarks Protection Comprehensive protection of outdoor side fan motor Protection of high/low pressure or high temperarture Comprehensive Protection...
  • Page 114 DM16‐01.01.27en    Rooftop ClimaCreator series  Ambient temperature sensor (T4) error FLASH FLASH Over-current protection of compressor FLASH Low temperature protection of evaporator FLASH Continued: LED1 LED2 LED3 Content (Red) (Yellow) (Green) Low temperature protection of evaporator FLASH High temperature protection of condenser FLASH Wired controller communication error FLASH...
  • Page 115 Rooftop ClimaCreator series DM16‐01.01.27en Evaporator pipe temperature sensor (T2) error: Condenser pipe temperature sensor (T3) error : Ambient temperature sensor (T4) error: Indoor side room temperature sensor (T1) error : Over-current protection of compressor: Service manual...
  • Page 116 DM16‐01.01.27en    Rooftop ClimaCreator series  High pressure protection: High discharge temperature protection : Wired controller communication error : Service manual...
  • Page 117 Rooftop ClimaCreator series DM16‐01.01.27en Low pressure protection : Eeprom error : Service manual...
  • Page 118 DM16‐01.01.27en    Rooftop ClimaCreator series  Over-current protection of indoor side fan motor : Comprehensive protection of outdoor side fan motor : Service manual...
  • Page 119 Rooftop ClimaCreator series DM16‐01.01.27en High temperature protection of condenser : Low temperature protection of evaporator: Anti-freezing protection of evaporator : Service manual...

  • Page 120: Maintenance

    DM16‐01.01.27en    Rooftop ClimaCreator series  Protection of outdoor ambient temperature : 10. Maintenance Caution  Do not operate the unit without the evaporator fan access panel in place. Reinstall the access panel after performing any maintenance. Operating the unit without the access panel may result in severe personal injury.
  • Page 121 Rooftop ClimaCreator series DM16‐01.01.27en Regulating belt of tension Refer to the following figure, loose 2 bolts, and move the electric motor to adjust belt tension. These two bolts are used for precision adjustment. Belt tension is measured by belt tension indicator  Calculate the deflection, deflection (L) = A/64.
  • Page 122 DM16‐01.01.27en    Rooftop ClimaCreator series  following lists.  The belt which is too tight or too loose may generate noise and be harmful to the unit. For required to deflection Belt section Small pulley diameter Newton Kilogram-force 80mm~132mm 25N~35N 2.5kg.f~3.6kg.f Air intake filter clean (The filter should be customized). Step 1: Dismantle the air filter.
  • Page 123 Rooftop ClimaCreator series DM16‐01.01.27en Condenser coil Unfiltered air circulates through the unit’s condenser coil can cause the coil’s surface to become clogged with dust. Clean the coil, vertically (i.e., with the fins), and stroke the coil surface with a soft brush. Be sure to keep all vegetation away from the condenser coil area. Periodic maintenance To keep the unit operating safety and efficiently, the entire system should be checked at least once each year.

  • Page 124: Appendix: - Temperature Sensor

    DM16‐01.01.27en    Rooftop ClimaCreator series  Appendix: - Temperature sensor Room / Pipe temperature sensor Resistance Valve (R25 = 10 kOhm±1%, B25/50 = 4100K±1%) Temperature Temperature Tolerance Max. Min. (°C) (KΩ) (KΩ) (KΩ) (°C) 35.630 34.840 34.064 -0.41 0.42 33.741 33.011 32.292 -0.40 0.42 31.963 31.288...
  • Page 125 Rooftop ClimaCreator series DM16‐01.01.27en Continued: Temperature Temperature Tolerance Max. Min. (°C) (KΩ) (KΩ) (KΩ) (°C) 10.582 10.472 10.363 -0.22 0.23 10.100 10.000 9.9000 -0.21 0.22 9.6518 9.5519 9.4520 -0.22 0.23 9.2262 9.1265 9.0270 -0.23 0.25 8.8218 8.7226 8.6235 -0.25 0.26 8.4376 8.3389 8.2405 -0.26 0.27...
  • Page 126 DM16‐01.01.27en    Rooftop ClimaCreator series  Continued: Temperature Temperature Tolerance Max. Min. (°C) (KΩ) (KΩ) (KΩ) (°C) 3.6632 3.5900 3.5179 -0.50 0.52 3.5230 3.4512 3.3805 -0.52 0.53 3.3890 3.3186 3.2494 -0.53 0.55 3.2608 3.1919 3.1241 -0.54 0.56 3.1383 3.0708 3.0044 -0.56 0.57 3.0211 2.9550 2.8900 -0.57...

  • Page 127: Appendix: - Ehk (Electrical Heater Kits)

    Rooftop ClimaCreator series DM16‐01.01.27en Appendix: - EHK (Electrical Heater Kits) 1. EHK Parameter Model Controlling EH Duct Input MRCT-062CWN1-R(C) EHK-BOX-A EHK-15F(D) 15kW 22.7A 28.4A MRCT-075CWN1-R(C) EHK-BOX-A EHK-15F(D) 15kW 22.7A 28.4A EHK-BOX-A EHK-20F(D) 20kW 30.3A 37.9A MRCT-085CWN1-R(C) MRCT-100CWN1-R(C) EHK-BOX-A EHK-20F(D) 20kW 30.3A 37.9A EHK-BOX-A EHK-20F(D) 20kW...
  • Page 128 DM16‐01.01.27en    Rooftop ClimaCreator series  2. Airflow pressure drop Airflow pressure drop (inches W.C. [Pa]) Model 15kW EHK 20kW EHK 30kW EHK 40kW EHK 0.32 [80] MRCT-062CWN1-R(C) MRCT-075CWN1-R(C) 0.32 [80] MRCT-085CWN1-R(C) 0.32 [80] 0.32 [80] MRCT-100CWN1-R(C) MRCT-125CWN1-R(C) 0.32 [80] 0.40 [100] MRCT-150CWN1-R(C) 0.32 [80] 0.40 [100] 0.64 [160]...
  • Page 129 Rooftop ClimaCreator series DM16‐01.01.27en Step 2: Place the controlling box into the buckle of the electrical heater duct. Step 3: Assembly the controlling box to the electrical heater duct by 3 pieces of screws. Service manual...
  • Page 130 DM16‐01.01.27en    Rooftop ClimaCreator series  Step 4: Wiring Electric diagram – 15kW/20kW EHK: Code Title F1~F6 Thermal cut-off R1~R6 Electrically heated pipe KM1~KM2 Contactor Temperature protection switch 4-way terminal Service manual...
  • Page 131 Rooftop ClimaCreator series DM16‐01.01.27en Electric diagram – 30kW/40kW EHK: Code Title F1~F12 Thermal cut-off R1~R12 Electrically heated pipe KM1~KM4 Contactor K1~K2 Temperature protection switch 4-way terminal Service manual...
  • Page 132 DM16‐01.01.27en    Rooftop ClimaCreator series   From the electric diagram, the bundle of signal line coming from the heat kit into the rooftop unit can be found. First, one line connect to PCB of the unit. When unpack the packing of the controlling box, the bundle of signal line also can be found. ...

This manual is also suitable for:

Mrct-075cwn1-r(c)Mrct-085cwn1-r(c)Mrct-125cwn1-r(c)Mrct-150cwn1-r(c)Mrct-175cwn1-r(c)Mrct-250cwn1-r(c) ... Show all

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