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Midea R410A T3 50Hz Split Type
Applicable Model:
Indoor unit
MTB1T-96C(H)WN1
MHB1T-96C(H)WN1
MFA3T-96C(H)RN1
Midea reserves the right to discontinue, or change specification or designs at any time without notices and
without incurring obligations.
Top-discharge Series
Technical Service Manual
Outdoor unit
MOVTA-96C(H)N1-R
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Summary of Contents for Midea MTB1T-96CWN1
- Page 1 Midea R410A T3 50Hz Split Type Top-discharge Series Technical Service Manual Applicable Model: Indoor unit Outdoor unit MTB1T-96C(H)WN1 MOVTA-96C(H)N1-R MHB1T-96C(H)WN1 MFA3T-96C(H)RN1 Midea reserves the right to discontinue, or change specification or designs at any time without notices and without incurring obligations.
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Page 2: Table Of Contents
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Content Part. 1 General information ........2 Part. 2 Indoor Unit ............. 6 Part. 3 Outdoor Unit ..........40 Part. 4 Installation ............ 49 Part. 5 Controller ............. 86... -
Page 3: Part. 1 General Information
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Part. 1 General information 1. Model Names of Indoor/Outdoor Units ....... 3 2. External Appearance ............ 4 3. Nomenclature ..............5... - Page 4 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 1. Model Names of Indoor/Outdoor Units 1.1 Model names of units with cooling only: Indoor unit Outdoor unit Cooling capacity Power Power Type Model Model MBtu/h supply supply Med-static pressure MTB1T-96CWN1 duct type...
- Page 5 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 2. External Appearance 2.1 Indoor units MTB1T-96C(H)WN1 MHB1T-96C(H)WN1 MFA3T-96C(H)RN1 2.2 Outdoor unit MOVTA-96C(H)N1-R...
- Page 6 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 3. Nomenclature 3.1 Indoor unit: M F A3 T – 96 C R N1 Refrigerant type N1: R410A Remote controller Function code C: Cooling only H: Heat pump Nominal cooling capacity (96×1,000Btu/h) Ambient type...
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Page 7: Part. 2 Indoor Unit
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Part. 2 Indoor Unit Duct Type ................7 Floor-standing Type ............25... - Page 8 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Duct Type 1. Features ................ 8 2. Specifications ..............9 3. Dimensions (Unit: mm) ..........11 4. Service Space ............. 12 5. Refrigerant circuit ............13 6. Wiring Diagrams ............14 7. Capacity Table ............. 16 8.
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Page 9: Features
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 1. Features High capacity of cooling/heating, efficient and energy-saving. Nested in the ceiling, space-saving and noble. Innovative air supply, which provides homogeneous conditioning of the room temperature. The air outlet is laid out in the way you desire. -
Page 10: Specifications
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 2. Specifications Model MTB1T-96HWN1 MTB1T-96CWN1 Power supply 220-240V~, 1Ph, 50Hz 220-240V~, 1Ph, 50Hz Btu/h 96,000 96,000/87,860 Capacity 28,100 28,100/25,750 T1 Cooling Input 9,600 9,600/15,000 2.93 2.93/1.72 Btu/h 87,860 96,000/87,860 Capacity 25,750 28,100/25,750 T3 Cooling... - Page 11 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Continued: Model MTB1T-96HWN1 MTB1T-96CWN1 Ф41 Ф41 Drain pipe size (OD) Controller KJR-29B1/BK-E KJR-29B1/BK-E 17 - 30 17 - 30 Operation temperature ° C Dimension (W×H×D) 1,452×462×716 1,452×462×716 Indoor unit Packing (W×H×D) 1,555×500×875 1,555×500×875...
- Page 12 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Model MHB1T-96HWN1 MHB1T-96CWN1 Power supply 220-240V~, 1Ph, 50Hz 220-240V~, 1Ph, 50Hz Btu/h 96,000 96,000 Capacity 28,100 28,100 T1 Cooling Input 9,600 9,600 2.93 2.93 Btu/h 87,860 87,860 Capacity 25,750 25,750 T3 Cooling Input...
- Page 13 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Model MHB1T-96HWN1 MHB1T-96CWN1 Ф41 Ф41 Drain pipe size (OD) Controller KJR-29B1/BK-E KJR-29B1/BK-E 17 - 30 17 - 30 Operation temperature ° C Dimension (W×H×D) 1,452×462×716 1,452×462×716 Indoor unit Packing (W×H×D) 1,555×500×875 1,555×500×875 Net/Gross weight...
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Page 14: Dimensions (Unit: Mm)
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 2. Dimensions (Unit: mm) MTB1T-96C(H)WN1,MHB1T-96C(H)WN1:... -
Page 15: Service Space
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 3. Service Space... -
Page 16: Refrigerant Circuit
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 4. Refrigerant circuit Cooling only: MTB1T-96CWN1, MHB1T-96CWN1 Heat pump: MTB1T-96HWN1, MHB1T-96HWN1... -
Page 17: Wiring Diagrams
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 5. Wiring Diagrams MTB1T-96CWN1, MHB1T-96CWN1... - Page 18 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 MTB1T-96HWN1, MHB1T-96HWN1...
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Page 19: Capacity Table
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 6. Capacity Table MTB1T-96C(H)WN1, MHB1T-96C(H)WN1 Gross Cooling Capacity (kW) Outdoor DB(° C) 29.40 35.00 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.90 19.37 13.09 5.62 20.62 13.75 5.90 21.66 14.44... - Page 20 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Gross Cooling Capacity (kW) Outdoor DB(° C) 40.60 46.10 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.90 17.75 11.83 8.67 18.63 12.42 9.10 19.57 13.04 9.56 17.23 11.49 10.04 18.09...
- Page 21 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Gross Cooling Capacity (kW) Outdoor DB(° C) 51.70 Indoor WB(° C) 16.10 19.40 22.80 DB(° C) 23.90 16.73 11.15 16.41 17.23 11.49 16.77 18.44 12.30 17.02 26.70 17.40 13.38 16.45 17.92 13.78 16.81 19.18...
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Page 22: Static Pressure Curve
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 7. Static Pressure Curve MTB1T-96C(H)WN1 P (Pa) 2500 3500 4500 5500 Q (m 1472 2061 2650 3239 MHB1T-96C(H)WN1 P (Pa) 2500 3500 4500 5500 6500 Q (m 1472 2061 2650 3239 3828... -
Page 23: Electric Characteristics
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 8. Electric Characteristics Indoor Unit Power Supply Model Voltage Min. Max. MTB1T-96CWN1 220-240V 198V 264V MTB1T-96HWN1 220-240V 198V 264V MHB1T-96CWN1 220-240V 198V 264V MHB1T-96HWN1 220-240V 198V 264V Note: MCA: Min. Current Amps. (A) MFA: Max. -
Page 24: Sound Levels
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 9. Sound Levels Model Noise level 56 dB(A) MTB1T-96CRN1 MTB1T-96HRN1 56 dB(A) MHB1T-96CRN1 56 dB(A) MHB1T-96HRN1 56 dB(A) -
Page 25: Accessories
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 11. Accessories Name Qty. Purpose Owner’s manual —— —— Installation manual Restriction assembly Connect to system Water connective pipe Connect to water drainage pipe Display board subassembly Connect to control signal —— Protective sleeve for refrigerant inlet and outlet pipes ——... - Page 26 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Floor-standing Type 1. Features ................26 2. Specifications ..............27 3. Dimensions (Unit: mm) ............29 4. Service Space ..............30 5. Refrigerant Circuit .............. 31 6. Wiring Diagrams ..............32 7. Capacity Tables ..............34 8.
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Page 27: Features
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 1. Features The appearance is novel, luxurious, refined. All round steel shell, for high quality protection of transportation. Quick cooling and heating, the air could attach long distance. Available for wireless remote control and screen control. -
Page 28: Specifications
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 2. Specifications Model MFA3T-96HRN1 MFA3T-96CRN1 Power supply 220-240V~, 1Ph, 50Hz 220-240V~, 1Ph, 50Hz Btu/h 96,000 96,000 Capacity 28,100 28,100 T1 Cooling Input 9,600 9,600 2.93 2.93 Btu/h 87,860 87,860 Capacity 25,750 25,750 T3 Cooling... - Page 29 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Continued: Model MFA3T-96HRN1 MFA3T-96CRN1 Controller R51/E R51/E Operation temperature ° C 17 - 30 17 - 30 Dimension (W×H×D) 1,200×1,860×518 1,200×1,860×518 Indoor unit Packing (W×H×D) 1,362×2,050×582 1,362×2,050×582 Net/Gross weight 140/154 140/154 Notes: #. Connection piping diameter of indoor unit is the inlet and outlet pipe of the indoor unit. When the length...
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Page 30: Dimensions (Unit: Mm)
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 3. Dimensions (Unit: mm) MFA3T-96C(H)RN1... -
Page 31: Service Space
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 4. Service Space... -
Page 32: Refrigerant Circuit
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 5. Refrigerant Circuit Cooling only: MFA3T-96CRN1 Heat pump: MFA3T-96HRN1... -
Page 33: Wiring Diagrams
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 6. Wiring Diagrams MFA3T-96CRN1... - Page 34 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 MFA3T-96HRN1...
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Page 35: Capacity Tables
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 7. Capacity Tables MFA3T-96C(H)RN1 Gross Cooling Capacity (kW) 29.40 35.00 Outdoor DB(° C) Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.90 19.46 12.97 5.62 20.43 13.62 5.90 21.45 14.30 6.20... - Page 36 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Gross Cooling Capacity (kW) Outdoor DB(° C) 40.60 46.10 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 17.58 11.72 8.67 18.46 12.30 9.10 19.38 12.92 9.56 17.07 11.38 10.04 17.92 11.95...
- Page 37 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Gross Cooling Capacity (kW) Outdoor DB(° C) 51.70 Indoor WB(° C) 16.10 19.40 22.80 DB(° C) 23.90 16.73 11.15 16.41 17.23 11.49 16.77 18.44 12.30 17.02 26.70 17.40 13.38 16.45 17.92 13.78 16.81 19.18 14.75...
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Page 38: Electric Characteristics
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 8. Electric Characteristics Indoor Unit Power Supply Model Voltage Min. Max. MFA3T-96CRN1 220-240V 198V 264V 3.55 2.84 MFA3T-96HRN1 220-240V 198V 264V 3.55 2.84 Note : MCA: Min. Current Amps. (A) MFA: Max. Fuse Amps. (A) KW: Fan Motor Rated Output (KW) FLA: Full Load Amps. -
Page 39: Sound Levels
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 9. Sound Levels Model Noise level MFA3T-96CRN1 56 dB(A) MFA3T-96HRN1 56 dB(A) -
Page 40: Accessories
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 10. Accessories Name Qty. Shape Usage —— —— Owner’s manual —— —— Installation manual —— —— Remote controller manual —— Water connective pipe Connect to water drainage pipe —— Remote controller —— AAA battery ——... - Page 41 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Part. 3 Outdoor Unit 1. Specifications ..............41 2. Dimension (Unit: mm) ............43 3. Service Space ..............44 4. Wiring Diagrams ..............45 5. Electric Characteristics ............47 6. Sound Levels ..............48...
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Page 42: Specifications
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 1. Specifications Model MOVTA-96HN1-R MOVTA-96CN1-R Power supply 380-415V~, 3Ph, 50Hz 380-415V~, 3Ph, 50Hz 17 - 46 Ambient temperature in cooling ° C 17～46 Ambient temperature in heating ° C -7 - 24 Rated input... - Page 43 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Notes: #. Connection piping diameter of outdoor unit is the stop valve diameter of the outdoor unit. When the length of the refrigerant pipe between indoor and outdoor is not more than 30m, please connect the straight pipe as the accessory in outdoor unit with high pressure stop valve to change the diameter of liquid pipe to Ф9.52.
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Page 44: Dimension (Unit: Mm)
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 2. Dimension (Unit: mm) MOVTA-96C(H)N1-R:... -
Page 45: Service Space
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 3. Service Space MOVTA-96C(H)N1-R Notes: 1. In case any obstacles exist above the outdoor unit, such obstacles must be 2000mm above the outdoor unit. 2. If miscellaneous articles are piled around the outdoor unit, such articles must be 400mm below the top of the... -
Page 46: Wiring Diagrams
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 4. Wiring Diagrams MOVTA-96CN1-R:... - Page 47 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series MOVTA-96HN1-R: Note: The middle joint XT4 only exists when the frequency of outdoor unit power is 50Hz.
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Page 48: Electric Characteristics
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 5. Electric Characteristics Outdoor Unit Power Supply Compressor Model Voltage Min. Max. TOCA MOVTA-96CN1-R 380-415V 342V 440V 19.8 23.7 26.1 14.6 5.86 MOVTA-96CN1-R 380-415V 342V 440V 19.8 23.7 26.1 14.6 5.86 Note: MCA: Min. Current Amps. (A) TOCA: Total Over-current Amps. -
Page 49: Sound Levels
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 6. Sound Levels Microphone Front Note: H = (h+1) / 2 Model Noise level MOVTA-96CN1-R 68 dB(A) MOVTA-96HN1-R 68 dB(A) - Page 50 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Part. 4 Installation 1. Notes ................. 50 2. Installation of Duct Type Indoor Units ........ 52 3. Installation of Floor-standing Type Indoor Units ....56 4. Installation of Outdoor Units ..........58 5. Connection of Refrigerant Pipe .......... 60 6.
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Page 51: Notes
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 1. Notes WARNING: Do not throw or slam the remote controller. Operate the remote controller within the receiving scope of the indoor unit, and direct the transmitting part of the remote controller to the receiver of the indoor unit. - Page 52 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Install the unit where the supply air flow can be sent to all parts in the room. Install the unit where it is easy to lead out the connective pipe and the drain pipe.
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Page 53: Installation Of Duct Type Indoor Units
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 2. Installation of Duct Type Indoor Units 2.1 Installating indoor units As the following picture, when install the indoor unit, select the enough solid and level site with enough space for installation and maintenance. - Page 54 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 When in the new concrete roughcast environment, please use embedded bolts, embedded pulling plugs and stick harness. On steel bar have some holes to hang pipe and embed screw bolts. When in steel beam and girder structure, set and use supportive angle steel.
- Page 55 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series specifications. The duct accessories and materials must be produced by professional manufacturers. In order to prevent air flow shorting, do not keep the air inlet pipe near the air outlet pipe.
- Page 56 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Open the clapboard of indoor unit, pour the water in to see whether it drains smoothly and whether there is water leakage. After confirming that drainage is smoothly and there is no leakage, wrap the drainpipe with...
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Page 57: Installation Of Floor-Standing Type Indoor Units
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 3. Installation of Floor-standing Type Indoor Units As the following picture, when install the indoor unit, select the enough solid and level site, ensure enough space required for installation and maintenance. ... - Page 58 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 There is natural drain, it is should be confirmed that the height of drain pipe is not higher than water collection tray. The number of bends and folds of the drain pipe should not exceed 2. Try to avoid bends to prevent trash accumulation.
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Page 59: Installation Of Outdoor Units
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 4. Installation of Outdoor Units When installing the unit, leave a space for maintenance shown in the following figure. Install the power supply at the side of the outdoor unit. For installation procedure, see the relevant installation manual. - Page 60 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 The distance of the foundation bolt is shown in following picture. MOVTA-96C(H)N1-R As the following shown picture, leave an interval of 500mm between the outdoor units. Snow protection facilities must be installed in the snowfall areas. (In case the snow protection facilities are incomplete, faults may occur.) In order to prevent influence caused...
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Page 61: Connection Of Refrigerant Pipe
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 5. Connection of Refrigerant Pipe Schematic diagram of connection between indoor unit and outdoor unit: MT(H)B1T-96C(H)WN1 + MOVTA-96C(H)N1-R MFA3T-96C(H)WN1 + MOVAT-96C(H)N1-R The refrigerant pipe adapter is located inside the outdoor unit. So remove the right front board first. - Page 62 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Use high-pressure nitrogen to clean the pipelines. Do not use the refrigerant of the outdoor unit for cleaning. Pipes size of the units: Model Liquid pipe Gas pipe MTB1T-96CWN1 Φ9.52mm Φ25.4mm MTB1T-96HWN1 (pipe length L≤30m)
- Page 63 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series As shown in following picture, when brazing the indoor and outdoor connective lines, pad a sheet metal under the valve avoids the flame burning the chassis. Precaution should be taken to prevent heat damage the service valve by wrapping a wet rag around it as shown in following picture.
- Page 64 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 After this connection has cooled, remove the nitrogen source from the liquid fitting service port. Replace the Schrader core in the liquid and vapor valves. Leak test all refrigerant piping connections including the service port flare caps to be sure they are leak tight.
- Page 65 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Less than 5m Use refrigerant in the outdoor unit. 5~15m Use vacuum pump or refrigerant tank. Note: If the air conditioner is relocated, be sure to use a vacuum pump or refrigerant tank to expel air.
- Page 66 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Use a vacuum pump Loosen and remove the maintenance orifice nut of valve A, and connect the filler hose of the manifold valve to the maintenance orifice of valve A (Tighten both valve A and valve B).
- Page 67 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series in following picture. Procedure of opening the valve: Open the square-head cover, use a spanner to capture the square head and open it thoroughly. Then tighten the square-head cover. Procedure of closing the valve: same as the procedure of opening the valve, but rotate the spanner clockwise thoroughly.
- Page 68 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Total refrigerant quantity for 10HP = refrigerant replenishment quantity upon shipment (11kg) + additional refrigerant replenishment corresponding to the pipe length. Calculate out the indoor volume [B (m )] (according to the minimum volume) ...
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Page 69: Heat Insulation Of Pipe
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 6. Heat Insulation of Pipe In order to prevent faults caused by condensate of the refrigerant pipe and drain pipe, perform condensate prevention and heat insulation properly. Note: If it is forecast that high humidity and temperature environment (Condensate temperature is over 23°... -
Page 70: Electric Connection
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 7. Electric Connection 7.1 Caution Use special power supply for the air conditioner. Design power supplies specific to the indoor unit and outdoor unit. The supply voltage must comply with the nominal voltage. - Page 71 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 7.2 Specifications of power supply Type Indoor unit Outdoor unit MTB1T-96CWN1 MTB1T-96HWN1 MHB1T-96CWN1 MOVTA-96CN1-R Model MHB1T-96HWN1 MOVTA-96HN1-R MFA3T-96CRN1 MFA3T-96HRN1 Power 220-240V~, 1Ph, 50Hz 380~415V~, 3Ph, 50Hz Switch capacity of the main 20/10 70/50...
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Page 72: Part. 3 Outdoor Unit
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Indoor unit Outdoor unit MTB1T-96CWN1 MTB1T-96HWN1 MOVTA-96CN1-R Model MHB1T-96CWN1 MHB1T-96HWN1 MOVTA-96HN1-R MFA3T-96CRN1 MFA3T-96HRN1 Power 220-240V~, 50Hz 380-415V~, 3Ph, 50Hz Switch capacity of the main 20/10 70/50 power supply/Fuse(A) Indoor unit power cable(mm ——... -
Page 73: Duct Design Scheme
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 8. Duct Design Scheme Examples of construction and ventilation pipeline design scheme (Flowering hidden series.) Construction and ventilation pipeline design scheme... -
Page 74: Part. 4 Installation
Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Methods of configuring and selecting installation Material name Characteristics, advantages and other contents 1. Install the filter at the main body grille in case the store height is low, and at the main body of the indoor unit in case the store height is high. - Page 75 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 1. Fixed model that diffuses air at a 360 angle. 2. The outline size should increase when the air volume is over 350CMH. (For above 303) i.e., when about 9 diffusers are required, the outline size should increase.
- Page 76 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 1. Low noise compared with other air outlets. Applicable to tall buildings that require a long distance of air conditioning. 2. Select the ventilation pipe connection caliber according to the distance and the air speed.
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Page 77: Trial Run
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 9. Trial Run Please conduct in accordance with “Trial Run Tenor Nameplate” on the electric control box. Perform the trial run only after the outdoor unit has been powered on for over 12 hours. - Page 78 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Check whether the indoor temperature conditioning is normal. Check whether the indicators illuminate normally. Check whether the manual operation buttons are normal. Check whether the drain function is normal.
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Page 79: Names And Functions Of Ac Components
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 10. Names and Functions of AC Components MTB1T-96C(H)WN1，MHB1T-96C(H)WN1 MFA3T-96C(H)RN1 Horizontal air deflector Adjust the vertical air flow (Manual) Vertical air deflector Adjust the horizontal air flow (Auto) Remote controller Control all modes of the unit within an... - Page 80 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 10.1 Control keys ON/OFF This key controls air conditioner drive-up and shut down. Press the key at the first time, the unit will open, and then press it again the unit will shut down. During the unit is on serving the key is lighting;...
- Page 81 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Lock key Be used to select lock function on or off. This key is locate at the needle orifice of low right of the control panel, which be pressed by pin. If lock the unit by the key, any other keys is invalid, however the signal is effective.
- Page 82 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 SWING Swing icon. Press the key of SWING, which icon is light-up, while close off this mode, the icon will light-off. For temperature display, the shows temperature value, the unit is ° C. For protection...
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Page 83: Trouble Shooting
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 11. Trouble shooting 11.1 Phenomena not attributable to faults of air conditioner The following phenomena do not indicate exception of air conditioner. The system does not run. After pressing the ON/OFF button, the system does not run immediately. - Page 84 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 indoor unit and the outdoor unit. The sizzles may be heard shortly after the unit stops running or when the unit runs in the defrost mode. That is the sound raised because the refrigerant stops flowing or changes to the volume of flow.
- Page 85 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Foreign substance or moist enters the air conditioner or other exceptions occur. The indoor unit leaks water. Other exceptions occur. If the air conditioner fails but does not meet the foregoing phenomena obviously, check the...
- Page 86 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Symptom Possible causes Way of handing The condenser or evaporator is Clean the heat-exchanger. too dirty. The filter is blocked. Clean the filter. The intake orifice or exhaust Remove foreign matters to keep well orifice of the indoor and outdoor ventilated.
- Page 87 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series The transmitting symbol”▲” does not blink. Symptom Check item Cause Pressing ON/OFF button, the remote Check whether the batteries of When the batteries are exhausted, the controller signal remote controller are low.
- Page 88 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 11.4 Trouble shooting (The Duct Type) Display Fault or protection meaning All lamps flashing at 5Hz The PRO terminal on PCB of indoor unit without connected to Null line, or optical coupler on PCB malfunction Timer lamp flashing at Room temperature sensor malfunction.
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Page 89: Maintenance
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 12. Maintenance Importance Only the professionals can perform repair. Before performing operation for the electric connectors or cleaning the filter, turn off the main power switch. Do not use water or air with a temperature higher than 50° C to clean the filter or panel. - Page 90 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 consumed even if the air conditioner does not run. Turning off the main power switch can save energy. Remove the batteries out of the remote controller. After the air conditioner has been in service for several seasons, foreign substance accumulates inside the unit to an extent dependent on the working conditions.
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Page 91: Part. 5 Controller
MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Part. 5 Controller 1. Wireless Remote Controller ..........91 2. Wired Controller ..............98... - Page 92 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 1. Wireless Remote Controller 1.1 Remote controller specifications Model R51, R51/BG,R51/E,R51/CE,R51/BGE,R51/CBGE Rated Voltage 3.0V Lowest Voltage of CPU Emitting Signal 2.0V Reaching Distance 8m (when using 3.0 voltage, it Gets 11m) Environment Temperature Range -5°...
- Page 93 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Note: This illustration is for explanation purposes only. The actual shape or button names of the remote controller may be slightly different. 1. TEMP Button ▼: Push the TEMP button to decrease the indoor temperature setting or to adjust the TIMER in a counter-clockwise direction.
- Page 94 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Note: Ventilation function is available for the fresh air series. 1.3 Names and functions of indicators on remote controller ①TRANSMISSION Indicator: This indicator lights when remote controller transmits signals to indoor unit. ② MODE Display: Show the current operation modes, AUTO, COOL, DRY and HEAT. HEAT is only available for heat pump model.
- Page 95 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 1.4 Operating the remote controller 1) Install / Replace Batteries The Remote Controller uses two alkaline dry batteries (R03/Ir03X2). ※ To install batteries, slide back the cover of the battery compartment and install the batteries according to the directions (+ and -) shown on the Remote Controller.
- Page 96 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 ※ Push the TEMP button to set the desired room temperature. When in COOLING mode, the most comfortable settings are 21 or above. When in HEATING mode, the most ° C comfortable settings are 28 or below.
- Page 97 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series ※ Push the TIMER button and the remote controller will show the last set time for the START operation and the signal "h" will be shown on the display panel. You are now ready to readjust the TIMER OFF to stop the operation.
- Page 98 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 2. Keep the Remote Controller away any liquids. 3. Protect the Remote Controller from high temperatures and exposure to radiation. 4. Keep the indoor receiver out of direct sunlight or the air conditioner may malfunction.
- Page 99 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 2. Wired Controller KJR-29B/BK-E 2.1 Wired controller specifications Power Supply Voltage 5.0V DC Ambient Temperature Range -15° C ~ 43° C Ambient Humidity Range RH40% ~ RH90% Performance Features 1. Connect with indoor unit via the four ports of A, B, C, and D.
- Page 100 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 2.2 Wired controller outlook KJR-29B/BK-E, KJR-29B1/BK-E, KJR-29C/BK-E, KJR-29A/BK-E, KJR-29A1/BK-E KJR-29C1/BK-E 2.3 Operation instructions 1) Remote signal receiving function: the wired controller can be a remote signal receiving device, it is possible to use the wireless remote controller to control the air conditioner through the wired controller when the system have been powered on.
- Page 101 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Note: When the controller has been set to cool only, then there is no HEAT mode. 4) Fan speed setting Under COOL, HEAT and FAN modes, press the fan speed button can adjust the fan speed setting.
- Page 102 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 The setting method of timer off is the same as the timer on. Under timer setting state, set the timer on and the timer off to be 0.0h can cancel timer on and time off.
- Page 103 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series Simultaneously press the temperature adjusting buttons again can cancel the locking state. 10) Air filter cleaning reminding function The wired controller records the total running time of the indoor unit, when the accumulated...
- Page 104 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 2.4 Installation of wired controller 1) Safety precaution Read the safety precautions carefully before installing the unit. Stated below are important safety issues that must be obeyed. Confirm there is no abnormal phenomena during test operation after complete, then hand the manual to the user.
- Page 105 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 2) Accessories Name Remarks Wired controller Cross round head wood mounting screw GB950-86 M4×20 (For mounting on the wall.) GB823-88 M4×25 Cross round head mounting screw (For mounting on the electrical switch box.) Installation manual Owner’s manual...
- Page 106 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 2. Wiring principle sketch: 3. Wiring figure: Connect two terminals of embedded 4-core shielding wire with the switching wires of wired controller and signal receiving board. Make sure the sequence of 4 terminals (A, B, C and D) should correspond to the wire sequence of signal switching wires (A, B, C and D).
- Page 107 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series If the embedded 4-core shielding wire cannot go through the wired controller, it can use signal switching for connection, make sure the wires are reliable and firm. The tightening torque range of screw is: 0.8~1.2N· m (8~12kgf· cm) 4.
- Page 108 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Use two M4×25 GB823-88 screws to install the back cover on the 86 electrician box, and use one GB950-86 M4×20 screw for fixing on the wall. Adjust the length of two plastic screw bars in the accessory to be standard length from the electrical box screw bar to the wall.
- Page 109 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series 5. Wiring A. Wiring, three outlet positions B. Shielded wiring Avoid the water enter into the wired remote controller, use trap and putty to seal the connectors of wires during wiring installation. When under installation, reserve certain length of the connecting wire for convenient to take down the wired remote controller while during maintenance.
- Page 110 Midea R410A T3 50Hz Top-discharge Series MCAC-UTSM-201707 Correct install the back cover and firmly buckle the front cover and back over, otherwise will make the front cover drop off. 7. Wired remote controller initial parameter setting: Change the related functions of the controller through adjusting the initial parameters.
- Page 111 MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series The parameters setting function only under the situation which need to adjust the default functions’ setting states; otherwise there is no need to do the setting. Second code First Function code Cooling-only/Heat pump...