Do you have a question about the MRCT-075CWN1-D(C) and is the answer not in the manual?
Questions and answers
Fabricio Mangnill
May 16, 2025
Have a question about the central unit MRCT 200CWN1 D(C) According to the manual, the return duct and the supply duct should be a specific size. What would be the consequences of installing ducts smaller than the recommended dimensions? I would appreciate any information you can offer on this topic. Thank you.
1 comments:
Mr. Anderson
May 22, 2025
Installing ducts smaller than the recommended dimensions can reduce airflow, which may lead to the following consequences:
1. Decreased cooling or heating efficiency. 2. Increased system pressure, potentially overloading components. 3. Higher energy consumption and operating costs. 4. Reduced equipment lifespan due to strain on the system. 5. Poor temperature distribution and comfort issues.
Proper duct sizing is essential for optimal performance and efficiency.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 1. Product lineup Nominal ton Model Function Air outlet Power supply MRCT-075CWN1-D(C) Cooling only Side discharge MRCT-100CWN1-D(C) Cooling only Side discharge MRCT-150CWN1-D(C) Cooling only Side discharge 220V 3Ph 60Hz...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 3. Nomenclatures M R C T – 075 C W N1 – 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)
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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.
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MCAC-RTT6S-201701 Midea R410A Tropical 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.
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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.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 2. Specifications Nominal ton (Ton) Model MRCT-075CWN1-D(C) MRCT-100CWN1-D(C) Power supply 220V, 3Ph, 60Hz 220V, 3Ph, 60Hz Btu/h 89,000 120,000 Cooling capacity Cooling 1 26.1 35.2 Power input 10.7 Btu/h 69.6...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Continued: Nominal ton (Ton) Model MRCT-075CWN1-D(C) MRCT-100CWN1-D(C) Type / Quantity Axial / 1 Axial / 1 Drive type Direct Direct Outdoor fan Motor model YS1100-6C YS1100-6C Fan speed 1,100...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Nominal ton (Ton) Model MRCT-150CWN1-D(C) Power Supply 220V, 3Ph, 60Hz Btu/h 180,000 Cooling capacity Cooling 1 52.8 Power input 16.2 Btu/h 146,000 Cooling capacity Cooling 2 42.79 Power input 18.5...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Continued: Nominal ton (Ton) Model MRCT-150CWN1-D(C) Type Axial Quantity Drive type Direct Outdoor fan Motor quantity Motor model YS1100-6C Fan speed 1,100 Type R410A Refrigerant Volume 4.6+2.2 Control Throttle valve...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Nominal ton (Ton) Model MRCT-200CWN1-D(C) Power supply 220V, 3Ph, 60Hz Btu/h 240,000 Cooling capacity Cooling 1 70.3 Power input 21.9 Btu/h 200,500 Cooling capacity Cooling 2 58.76 Power input 25.2...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Continued: Nominal ton (Ton) Model MRCT-200CWN1-D(C) Type Axial Quantity Drive type Direct Outdoor fan Motor quantity Motor model YS2200-6C Fan speed 1,150 Type R410A Refrigerant Volume 5.4+5.4 Control Throttle valve...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Nominal ton (Ton) Model MRCT-250CWN1-D(C) Power supply 220V, 3Ph, 60Hz Btu/h 300,000 Cooling capacity Cooling 1 87.9 Power input 27.8 Btu/h 251,700 Cooling capacity Cooling 2 73.77 Power input 37.9...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Continued: Nominal ton (Ton) Model MRCT-250CWN1-D(C) Type Axial Quantity Drive type Direct Outdoor fan Motor quantity Motor model YS2200-6 Fan speed 1,130 Type R410A Refrigerant Volume 6.7+6.7 Control Capillary...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 6. Electrical data Power Supply Compressor Eva.Fan Motor Con. Fan Motor Model TOCA Qty. (Each) (Each) MRCT-075CWN1-D(C) 42.2 54.2 67.0 24.8 8.23 5.04 1.09 5.45 1.65 MRCT-100CWN1-D(C) 52.3 66.7 83.2...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 7. Fan performance data MRCT-075CWN1-D(C) Static Pressure Item High speed Medium speed Low speed Fan speed (rpm) 1,035 1,359 1,242 1,032 Power input (W) 3,161 2,685 2,104 Air flow (CFM)
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Blower drive options Motor Blower Fan speed Model Pulleys pitch Pulleys pitch range (rpm) Dia. (inch) Dia. (inch) Min. Max. MRCT-100CWN1-D(C) 1,700 4.53~5.25 1,016 8.82 1,730 4.53~5.25 1,112 8.82...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 motor pulley to 0 turns. Then, make 0.5 turns on the pulley. Cross check the dimension ‘X’, and it stands for regulation space of motor pulley. In this case, X = 1.5mm.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MRCT-100CWN1-D(C) 0.25 0.75 1.25 1.75 (Pa) Fan speed (rpm) 2,759 2,390 2,020 1,945 1,870 Power input (W) 4,836 4,704 4,571 4,500 4,428 Air flow (CFM) Fan speed (rpm) Power input (W)
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 MRCT-250CWN1-D(C): 9. Operation limits Outdoor temperature Indoor temperature 10° C~52° C 17° C~31° C Cooling only mode Room relative humidity should be less than 80%. If the unit operates in excess, the surface of the unit...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Part. 3 Installations 1. General information ..............64 2. Recommendations ..............65 3. Lifting ..................66 4. Installation ................67 5. Condensate drainage .............. 68 6. Duct work ................69 7.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 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.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 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.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 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.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 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.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 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.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 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.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 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.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Power supply wiring diagram Wired controller wiring diagram (Standard wired controller) MRCT-100CWN1-D(C), MRCT-150CWN1-D(C), MRCT-200CWN1-D(C), MRCT-250CWN1-D(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.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Wired controller wiring diagram (Optional wired controller) MRCT-075CWN1-D(C): These units cannot directly connect with wired controller KJR-12B. If these units connect with KJR-12B, it should be customized to change the main PCB board of the unit.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 shafts? Are all covers and access panels in place to prevent air loss and safety hazards? Starting the unit: When the unit operates under cooling mode, please check the line voltage of the unit. The voltage should be within the range shown on the unit nameplate.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 21Psi, the unit will stop. Error & protection code MRCT-100CWN1-D(C), MRCT-150CWN1-D(C) MRCT-200CWN1-D(C), MRCT-250CWN1-D(C): Type Content Code Remarks Normal Standby ------ Normal Constraint cool Normal Error Compressor phase sequence error or phase lack...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Continued : Type Content Code Remarks Protection Comprehensive protection of outdoor side fan motor Protection of high/low pressure or high temperarture Comprehensive Protection protection of discharge sensor in system A...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 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 FLASH Low pressure protection...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 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:...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz High pressure protection: High discharge temperature protection : Wired controller communication error :...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Over-current protection of indoor side fan motor : Comprehensive protection of outdoor side fan motor :...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 High temperature protection of condenser : Low temperature protection of evaporator: Anti-freezing protection of evaporator :...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 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.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 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.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Air intake filter clean (The filter should be customized). Air intake filter should be customized as one individual packing, which is installed in site. Step 1: Dismantle the air filter.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 each year. The examining the areas include: Filter; Motors and drive system components; Economizer gaskets (Reserved); Safety controls; Electrical components and wiring (For possible replacement and connection tightness);...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Appendix: - Temperature sensor Room / Pipe temperature sensor Resistance Valve (R25 = 10 kOhm±1%, B25/50 = 4100K±1%) Temperature Temperature Tolerance Max. Min. (KΩ) (KΩ) (KΩ) (° C) (° C) 35.630...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Continued: Temperature Temperature Tolerance Max. Min. (KΩ) (KΩ) (KΩ) (° C) (° 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...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Continued: Temperature Temperature Tolerance Max. Min. (KΩ) (KΩ) (KΩ) (° C) (° 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...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 3. Assemble Step 1: Assembly the electrical heater duct to the supply opening by 10 pieces of screws. Step 2: Place the controlling box into the buckle of the electrical heater duct.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 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...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 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...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 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.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 1. Wired controller: KJR-12B KJR-12B/dP(T)-E 1.1 Wired controller specifications Model KJR-12B/dP(T)-E Power supply 5.0V DC Operation temperature -15° C~43° C Operation humidity 40%~90% RH 1.2 Introduction of indicators function 1.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz For cooling only model, the indicator ‘HEAT’ is skipped. 2. Timer ON/OFF When adjust setting on time or only on time is set, the indicator ‘ON’ is lighted. When adjust setting off time or only off time is set, the indicator ‘OFF’ is lighted.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 1.3 Introduction of buttons 1. Mode button: When press this button, the operation mode changes as the following sequence: But for the cooling only model, the heating mode is skipped.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 0.5h, after 10 hours, increase by 1 hour for each press. If cancel this function, just set it to 4. FOLLOW ME button: When under cool, heat and auto mode, and press this button, follow me function is active.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 13. LOCK button: (Hidden) When push the LOCK button, all current settings are locked in and the wired controller does not accept any instruction except that of the LOCK button. Use the lock mode when want to prevent setting from being changed accidentally or play fully.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Step 2: Press temperature adjust button to select setting temperature. Step 3: Press ON/OFF button, indoor unit operation lamp on, it works in dry mode. Press ON/OFF button again, it stops to work.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Notes: Timer-off time must be longer than timer-on time. Step 3: 0.5 second after setting, the wired controller send information to the unit. And the setting is finished. Change timer When need to change timer time, press corresponding button to revise it.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Accessories Item Quantity Remarks Wired controller Wood mounting screw M4×20 (For mounting on the wall) Mounting screw M4×25 (For mounting on the electrical switch box) Installation manual Owner’s manual...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Dimension of rear cover as following picture (Unit: mm): Installation figure as following: A: Turn a screwdriver at the concave on bottom panel of the wired controller to remove the back cover.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 2. Wired Controller: KJR-25B KJR-25B 2.1 Wired controller specifications Model KJR-25B Power Supply Voltage AC 24V Temperature display range 0° C~37° C Temperature control range 7° C~35° C Temperature control accuracy ±...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 optimize energy savings. EMER: It is used to select operating under EMER mode. RUN: Returns display to current time and temperature. Backlight display: This key allows users to operate the device in a dark room. The device lights up when a button is pressed, and turns off when a given operation is completed.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Displayed Press up or down Press button Comments (Factory default) button to select Single stage Multi-stage Backlight button MS 2 Heat Pump (Single stage) Heat Pump (2-stage) Recovery enable...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 The configuration menu allows you to set certain thermostat operating characteristics to your system or personal requirements. The configuration menu table summarizes the configuration options. An explanation of each option follows.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Step 2: Move FAN switch to ON position. The fan of unit will begin to operate. Step 3: Move FAN switch to AUTO position. The fan of unit will operate according to the setting of system immediately.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Step 2: Press to adjust wired controller setting above room temperature. The Aux. heating system will begin to operate. The display will show STG1, EMMER to indicate that the Aux.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Step 3: Press TIME again to change from minute setting to day setting. The current days will be flashing. Press UP or DOWN to change the day up or down to the current day.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Example: this LCD display shows today’s usage to be 10 hours, 26 minutes. Press RUN and hold for 3 seconds to reset the energy monitor’s counters. The display will blink and counter will be cleared to zero.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 10) Low battery warning The controller has a two-stage lower battery warning system. When the batteries are first detected to be weak, the first stage low battery warning is indicated by BATT flashing on the LCD display.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 All wiring diagrams are for typical systems only. Installation: Step 1: Remove the packing material from the controller. Gently pull the cover straight off the base. Forcing or prying on the controller will cause damage to the unit.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 3. Wired Controller: KJR-23B KJR-23B 3.1 Wired controller specifications Model KJR-23B Power Supply Voltage AC 24V Temperature display range 0° C~37° C Temperature control range 7° C~35° C Temperature control accuracy ±...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 3.3 Operation introduction 1) Start-up The LCD will show the factory default display of 70˚F (21˚C) when battery are first installed. The temperature will update after a few seconds.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 5) Setting new temperature Press either the UP or DOWN once and display the set temperature. Press either UP or DOWN again to change to your desired setting temperature. Hold the key down for over 2 seconds to fast advance the setting temperature.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 can be adjusted to modify the cycle time. Press UP and DOWN buttons for 3 seconds. SPAN will be displayed on the LCD. Press UP to raise the span to 3. This setting increases to cycle time by allowing your system to run longer.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 3.4 Wiring of the wired controller Each wire coming from the wall to the existing controller is connected to a terminal point on that controller. Each of these terminal points is usually marked with a code latter as shown in following figures.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Notes: Do not connect a ‘Common’ wire (Sometimes labeled ‘C’) to any terminal on this controller. Tape up the wire and do not use. This wire provides electricity to non-battery powered...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz controller. 3.5 Mount wall-plate and controller Remove the wall-plate from the controller by pressing the release tab on the bottom of the controller. Position wall-plate on wall and pull existing wires through large opening. Then level for appearance.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Insert the tabs on top of the controller body into the slots at the top of the wall-plate. Press the bottom of the controller body into the snap on the bottom of the wall-plate. Do not force the controller onto the wall plate, as the terminal pins may be damaged.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 5. Locking remote controller, locking keyboard of centralized controller and locking running mode. 3.2 Keypad of centralized controller 1) LOCK: In the mode setting mode, press the lock key, and the remote controller of the currently selected air conditioner will be locked or unlocked.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 2) OK: In the setting page, press it to send the currently selected mode status and the auxiliary function status to the selected air conditioner, and display the mode setting operation results.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz mode, every time when press the key, if it is in the single operation mode, the air conditioner corresponding to the last row will be selected. If it is in the global operation mode, no effect will result after the key is pressed.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 10) REDUCE: In the main page or the query mode, every time when pressing the key, the data of the current page will be displayed. If it is now in the first page, press the key again, and the last page will be displayed.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz in-service air conditioners in the network are in the power-off status, press the key to perform the startup operation. If it is in the mode setting page currently, and the parameters such as startup mode, temperature and air speed are selected, the air conditioner will be started according to the selected parameters.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 : The matrix is composed of 4×16 grids and each grid is composed of two blocks of different sizes. The matrix include horizontal coordinates 00-15 and vertical coordinates 00+, 16+, 32+ and 48+, which indicate the address of the indoor unit.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz controller. In the LAN composed of centralized controller and air conditioner, the centralized controller is a master, and the air conditioner is a slave. In the LAN composed of computer and centralized controller, the computer or gateway is a master, and the centralized controller is a slave.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 indicator goes off. If an in-service air conditioner in the network is faulty, or the centralized controller network itself is faulty, the indicator will blink at 2Hz. If one or more in-service air conditioners in the network are running, including under setting of timing start or shutdown, the indicator will be luminous.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz until the foregoing switch is turned off. If the foregoing two switches are turned on concurrently, the emergent shutdown switch shall have preference. 3.5 General display data entries 1) General display data is displayed in all display pages.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Indoor temperature display: display range: 00~99° C. The indoor temperature is displayed concurrently. If the temperature is higher than 99° C, 99° C will be displayed. If the temperature value is invalid, ‘--‘ will be displayed.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 3) LCD display description Description of the standby page The LCD displays the standby page, 60 air conditioners are in service, of which 28 are powered on and 32 off.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 supply, swing on, indoor temperature 22° C, setting temperature 20° C and cooling mode locked. In the matrix, only the big and small black dots at (00, 00+) and (01, 00+) are luminous.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz The centralized controller communicates with the computer normally. Fault code table: Fault code Fault content Other faults Outdoor unit fault protection Over-current of compressor (4 times) Fault of communication between main board and display board...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 units. Centralized controller should be connected with the main PCB board of the indoor unit through network interface module, which is named as MD-NIM01. 1) The installation of network interface module Outlook of MD-NIM01 The first green lighter: Ready indicator.
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Connect the network interface module with the port CN22 in the main PCB board of indoor unit through the signal wire, which is as the attachment of the module.
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 3) The wire connection...
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MCAC-RTT6S-201701 Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz 4) System wiring instruction Wiring diagram of building network air conditioning system Wiring diagram with good communication effect...
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Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz MCAC-RTT6S-201701 Wiring diagram with poor communication effect (not recommended because it may lead to poor communication System wiring diagram of centralized monitoring and indoor unit of air conditioner Both of the following wiring modes of centralized monitor and indoor unit are applicable: (Quantity of indoor units connected with each centralized monitor is less than or equal to 64).
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MCAC-RTT6S-201701 Commercial Air Conditioner Division Midea Group Address: Midea Headquarters Building, 6 Midea Avenue, Beijiao, Shunde, Foshan, Guangdong, China Midea CAC After-service Application Midea CAC News Application 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...
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Questions and answers
Have a question about the central unit MRCT 200CWN1 D(C) According to the manual, the return duct and the supply duct should be a specific size. What would be the consequences of installing ducts smaller than the recommended dimensions? I would appreciate any information you can offer on this topic. Thank you.
Installing ducts smaller than the recommended dimensions can reduce airflow, which may lead to the following consequences:
1. Decreased cooling or heating efficiency.
2. Increased system pressure, potentially overloading components.
3. Higher energy consumption and operating costs.
4. Reduced equipment lifespan due to strain on the system.
5. Poor temperature distribution and comfort issues.
Proper duct sizing is essential for optimal performance and efficiency.
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