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MDV MDTC-96HWN1 Technical & Service Manual
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MDV MDTC-96HWN1 Technical & Service Manual

R410a t3 50hz split type new top-discharge series
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MDV R410A T3 50Hz Split Type
New Top-discharge Series
Technical Service Manual
Midea reserves the right to discontinue, or change specification or designs at any time without notices and
without incurring obligations.

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Summary of Contents for MDV MDTC-96HWN1

  • Page 1 MDV R410A T3 50Hz Split Type New Top-discharge Series Technical Service Manual Midea reserves the right to discontinue, or change specification or designs at any time without notices and without incurring obligations.
  • Page 2 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 Content Part. 1 General information ....Part. 2 Indoor Unit ....... Part. 3 Outdoor Unit ......Part. 4 Installation ......Part. 5 Controller .......
  • Page 3 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series Part. 2 Indoor Unit Duct Type ................Floor-standing Type ............
  • Page 4 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 Duct Type 1. Features ................ 2. Specifications ..............3. Dimensions (Unit: mm) ..........4. Service Space ............. 5. Refrigerant circuit ............6. Wiring Diagrams ............7. Capacity Table ............. 8. Static Pressure Curve ..........9.
  • Page 5 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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 6 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 2. Specifications Model MDTC-96HWN1 Type Med-static pressure duct Power supply 220-240V~, 1N, 50Hz Btu/h 96000/87860 Capacity(T1/T3) 28.1/25.75 Cooling Input(T1/T3) 9.6/15.0 EER(T1) 2.93 Btu/h 106000 Capacity 31.1 Heating Input 10.3 3.02 Rated input...
  • Page 7 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series MDTD-96HWN1 Model Type Hi-static pressure duct Power supply 220-240V~, 1N, 50Hz Btu/h 96000/87860 Capacity(T1/T3) 28.1/25.75 Cooling Input(T1/T3) 9.6/15.0 EER(T1) 2.93 Btu/h 106000 Capacity 31.1 Heating Input 10.3 3.02 Rated input Rated current Indoor air flow 5100 Indoor standard ESP (External static pressure)
  • Page 8 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 3. Dimensions (Unit: mm) MDTC-96HWN1 MDTD-96HWN1...
  • Page 9 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 4. Service Space...
  • Page 10 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 5. Refrigerant circuit MDTC-96HWN1 MDTD-96HWN1...
  • Page 11 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 MDTC-96HWN1 MDTD-96HWN1...
  • Page 12 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 7. Capacity Table MDTC-96HWN1 MDTD-96HWN1 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 6.20 19.07...
  • Page 13 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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) 17.75 11.83 8.67 18.63 12.42 9.10 19.57 13.04 9.56 17.23 11.49 10.04 18.09 12.06 10.54 19.00 12.66 11.07 23.90 18.46 14.20 9.02 19.38...
  • Page 14 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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 17.06 2470 29.40 18.09...
  • Page 15 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 8. Static Pressure Curve MDTC-96HWN1 P (Pa) 2500 3500 4500 5500 Q (m 1472 2061 2650 3239 MDTD-96HWN1 P (Pa) 2500 3500 4500 5500 6500 Q (m 1472 2061 2650 3239 3828...
  • Page 16 9. Electric Characteristics Indoor Unit Power Supply Model Voltage Min. Max. 220-240V 198V 264V MDTC-96HWN1 MDTD-96HWN1 220-240V 198V 264V Note: MCA: Min. Current Amps. (A) MFA: Max. Fuse Amps. (A) IFM: Indoor Fan Motor kW: Fan Motor Rated Output (kW)
  • Page 17 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 10. Sound Levels Model Noise level 56 dB(A) MDTC-96HWN1 56 dB(A) MDTD-96HWN1...
  • Page 18 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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 19 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 Floor-standing Type 1. Features ..............2. Specifications .............. 3. Dimensions (Unit:mm) ..........4. Service Space ............. 5. Refrigerant Circuit ............6. Wiring Diagrams ............7. Capacity Tables ............8. Electric Characteristics ..........9.
  • Page 20 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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 21 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 2. Specifications Model MDFA3-HRN1 Power supply 220—240V~，1Ph，50Hz Btu/h 96000/87860 Capacity(T1/T3) 28.1/25.75 Cooling Input power(T1/T3) 9.6/15.0 EER(T1) 2.93 Btu/h 106000 Capacity 31.1 Heating Input power 10.3 Rated input Rated current Indoor air flow 4800 Indoor noise level dB(A)
  • Page 22 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 3. Dimensions (Unit: mm) MDOVT-96HN1...
  • Page 23 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 4. Service Space...
  • Page 24 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 5. Refrigerant Circuit MDFA3-HRN1...
  • Page 25 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series MDFA3-HRN1...
  • Page 26 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 7. Capacity Tables MDFA3-HRN1 Gross Cooling Capacity (kW) Outdoor DB(°C) 29.40 35.00 WB(°C) Indoor 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 18.89 12.59 6.51 19.83...
  • Page 27 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series Gross Cooling Capacity (kW) Outdoor DB(°C) 40.60 46.10 WB(°C) Indoor 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 10.54 18.82 12.54 11.07 23.90...
  • Page 28 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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 17.06 2300 29.40...
  • Page 29 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 8. Electric Characteristics Indoor Unit Power Supply Model Voltage Min. Max. MDFA3-HRN1 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 30 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 9. Sound Levels Model Noise level 56 dB(A) MDFA3-HRN1...
  • Page 31 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 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 32 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 Part. 3 Outdoor Unit 1. Specifications .............. 2. Dimension (Unit: mm) ..........3. Service Space ............. 4. Wiring Diagrams ............5. Electric Characteristics ..........6. Sound Levels ...............
  • Page 33 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 1. Specifications MDOVT-96HN1 Model Power supply 380—415V~，3Ph，50Hz °C Ambient temp in cooling 17～52 °C Ambient temp in heating -7~24 Rated input 14.4 Rated current 23.7 Noise level dB(A) Type ×Qty. Scroll ×1 Brand Danfoss Model...
  • Page 34 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 2. Dimension (Unit: mm) MDOVT-96HN1...
  • Page 35 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 3. Service Space MDOVT-96HN1 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 outdoor unit.
  • Page 36 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series MDOVT-96HN1 Note: The middle joint XT4 only exists when the frequency of outdoor unit power is 50Hz.
  • Page 37 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 5. Electric Characteristics Outdoor Unit Power Supply Compressor Model Voltage Min. Max. TOCA 380-415V 342V 440V 19.8 23.7 26.1 14.6 5.86 MDOVT-96HN1 Note: MCA: Min. Current Amps. (A) TOCA: Total Over-current Amps. (A) MFA: Max.
  • Page 38 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 6. Sound Levels Microphone Front Note: H = (h+1) / 2 Model Noise level MDOVT-96HN1 68 dB(A)
  • Page 39 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 Part. 4 Installation 1. Notes ................2. Installation of Duct Type Indoor Units ......3. Installation of Floor-standing Type Indoor Units ... 4. Installation of Outdoor Units ........5. Connection of Refrigerant Pipe ........ 6.
  • Page 40 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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 41 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511  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. ...
  • Page 42 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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 43 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511  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 44 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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 45 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511  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 insulation material, or there will be condensed water.
  • Page 46 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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 47 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511  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.
  • Page 48 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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 49 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511  The distance of the foundation bolt is shown in following picture. MDOVT-96HN1  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 by snow, set up raised pavilion, and install snow protection sheds at the air inlet and air outlet.
  • Page 50 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 5. Connection of Refrigerant Pipe  Schematic diagram of connection between indoor unit and outdoor unit: MDTC-96HWN1 MDTD-96HWN1 MDOVT-96HN1 MDFA3-HRN1 MDOVT-96HN1  The refrigerant pipe adapter is located inside the outdoor unit. So remove the right front board first.
  • Page 51 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 Φ9.52mm Φ25.4mm MDTC-96HWN1 (pipe length L≤30m) (pipe length L≤30m) MDTD-96HWN1 MDFA3-HRN1 Φ12.7mm Φ28.6mm (pipe length 30<L≤50m) (pipe length 30<L≤50m)
  • Page 52 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series  Precaution should be taken to prevent heat damage the service valve by wrapping a wet rag around it as shown in following picture. Also, protect all painted surfaces, insulation, during brazing. Cool joint with rag after brazing. ...
  • Page 53 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511  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.  Do not over tighten.
  • Page 54 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series Use the refrigerant in the outdoor unit to expel air  Screw up the pipe nuts at A, B, C and D completely.  Loosen and remove the square-head cover of valves A and B, rotate the square-head spool of valve B counter-clockwise for 45 degrees and stay for about 10 seconds, and then close the spool of valve B tightly.
  • Page 55 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511  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 56 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series  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 57 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 (11kg) + additional refrigerant replenishment corresponding to the pipe length.  Calculate out the indoor volume [B (m )] (according to the minimum volume)  Calculate out the refrigerant density: )] ≤ Density threshold: 0.3kg/m [A (kg)] / [B (m ...
  • Page 58 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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°C) may exist in the ceiling, e.g., inside the ceiling with slab, ceiling which is in the same environment as the outdoor air.
  • Page 59 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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 60 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 7.2 Specifications of power supply Type Indoor unit Outdoor unit MDTC-96HWN1 MDTD-96HWN1 MDOVT-96HN1 Model MDFA3-HRN1 Power 220-240V~, 1Ph, 50Hz 380~415V~, 3Ph, 50Hz Switch capacity of the main 20/10 70/50 power supply / Fuse(A)
  • Page 61 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 Indoor unit Outdoor unit MDTC-96HWN1 MDTD-96HWN1 Model MDOVT-96HN1 MDFA3-HRN1 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 —— RVV-300/500 3×2.5mm includes grounded wire Outdoor unit power cable(mm ——...
  • Page 62 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 8. 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 63 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511  Check whether the functional keys of the remote controller or wire controller are normal.  Check whether the indoor temperature conditioning is normal.  Check whether the indicators illuminate normally.  Check whether the manual operation buttons are normal.
  • Page 64 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 9. Names and Functions of AC Components MDTC-96HWN1 MDTD-96HWN1 MDFA3-HRN1 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 65 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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 66 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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 67 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511  SWING Swing icon. Press the key of SWING, which icon is light-up, while close off this mode, the icon will light-off.  shows temperature value, the unit is °C. For protection For temperature display, the and error display, the first display...
  • Page 68 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 10. 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 69 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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 70 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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 system in the following procedure: Symptom Possible causes...
  • Page 71 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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 72 MCAC-UTSM-201511 Midea R410A T3 50Hz New 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. signals cannot be transmitted.
  • Page 73 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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.
  • Page 74 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 11. 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 75 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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.
  • Page 76 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series Part. 5 Controller 2. Wired Controller ............
  • Page 77 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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. 2.
  • Page 78 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 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 79 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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 80 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 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 81 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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 running time reaches the pre-set value, the air filter cleaning reminding icon will be lighted up, to remind that the air filter of the indoor unit need to be cleaned.
  • Page 82 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 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 83 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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 Plastic expansion pipe...
  • Page 84 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 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 85 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511  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 86 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series  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 87 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511 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 88 MCAC-UTSM-201511 Midea R410A T3 50Hz New Top-discharge Series 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 89 Midea R410A T3 50Hz New Top-discharge Series MCAC-UTSM-201511  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 Cooling Heat pump (Default)

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