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MCAC-RTSM-2011-12
Applicable Model:
Midea reserves the right to discontinue, or change at any time, specifications or designs without notices and
without incurring obligations.
Midea Combo Type
Heat Pump Water Heater
Technical Manual
Midea Combo Type Heat Pump Water Heater Technical Manual
RSJ-15/190RDN3-D
RSJ-35/300RDN3-D
1
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Summary of Contents for Midea RSJ-15/190RDN3-D
- Page 1 Midea Combo Type Heat Pump Water Heater Technical Manual Midea Combo Type Heat Pump Water Heater Technical Manual Applicable Model: RSJ-15/190RDN3-D RSJ-35/300RDN3-D Midea reserves the right to discontinue, or change at any time, specifications or designs without notices and without incurring obligations.
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Page 2: Table Of Contents
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Contents Part 1 General Information ..........3 1. Measurements ................4 2. External Appearance ..............4 3. Nomenclature ................. 5 4. Features ..................6 Part 2 Combo Units .............. 7 Specifications ................ -
Page 3: Part 1 General Information
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Part 1 General Information 1. Measurements ..............4 2. External Appearance ............4 3. Nomenclature ..............5 4. Features ................6... -
Page 4: Measurements
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 1. Measurements Dimension Net weight / Gross weight Model Power Supply (mm: D x H) (kg) Φ568×1640 RSJ-15/190RDN3-D 94/110 220~240V-1ph-50Hz Ф650×1,920 RSJ-35/300RDN3-D 123/150 220~240V-1ph-50Hz 2. External Appearance RSJ-15/190RDN3-D RSJ-35/300RDN3-D... -
Page 5: Nomenclature
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 3. Nomenclature Household Water Heating Unit 10 11 Design code Refrigerant code Water supply pump lift code Other functions code Power supply specification code Heating mode code Water tank volume, unit: L... -
Page 6: Features
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 4. Features 4.1 Safety Complete isolation between water and electricity. No electric shock problem, more safety. No fuel tubes and storage, no potential danger from oil leakage, fire, explosion etc. -
Page 7: Part 2 Combo Units
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Part 2 Combo Units Specifications .............. 8 Operation range............10 Performance diagram ..........11 Dimensions ..............13 Service Space ............14 Wiring Diagrams ............15 Piping Diagrams ............17 Duct connection ............18... -
Page 8: Specifications
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 1. Specifications Model RSJ-15/190RDN3-D Running mode Economy E-heater ℃ Running ambient temp. -7～43 -30～43 ℃ Outlet water Temp. Default 55℃,38℃～70℃ Power supply Ph-V-Hz 1-220～240-50 Storage size Capacity 3.00 Water heating kW/kW 1.00... - Page 9 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual PT valve joint DN20 Max. pressure Design pressure 0.15～1.0 Heat exchanger Dividing wall type heat exchanger E-heater Hot water yield m³ /h 0.043 0.086 Loading Quantity 20'/40'/40H 24/51/51 Remark: 1. The test conditions: outdoor temp. 15/12℃(DB/WB), inlet water temp. 15℃, outlet water temp.45℃.
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Page 10: Operation Range
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Safe class IPX4 Rated current μF Capacitor Number of rows Tube pitch(a)x row 22×19.05 pitch(b) Fin spacing hydrophilic aluminum Fin type (code) Evaporator coil Tube outside dia. and type internal screw thread 482×352... -
Page 11: Performance Diagram
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 3. Performance diagram The relationship between capacity and ambient temperature Model: RSJ-15/190RDN3-D Model: RSJ-35/300RDN3-D (kw) 15--45 15--50 15--55 15--60 5.00 4.50 4.00 3.50 3.00 2.50 2.00 1.50 1.00 Ambient temp(℃) -
Page 12: Mcac-Rtsm
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Model: RSJ-35/300RDN3-D... -
Page 13: Dimensions
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 4. Dimensions Model ：RSJ-15/190RDN3-D Model ：RSJ-35/300RDN3-D... -
Page 14: Service Space
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 5. Service Space... -
Page 15: Wiring Diagrams
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 6. Wiring Diagrams Model：RSJ-15/190RDN3-D... - Page 16 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Model：RSJ-35/300RDN3-D...
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Page 17: Piping Diagrams
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 7. Piping Diagrams... -
Page 18: Duct Connection
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 8. Duct connection A: Air inlet and outlet without duct B: Only air outlet with canvas, A≤5m It is recommended to install unit by this way in the winter where there is other heat source in the room. -
Page 19: Exploded View
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 9. Exploded View Model : RSJ-15/190RDN3-D... - Page 20 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Part Name Part Name 14.18 Inner enamel components Upper back cover 14.19 Tank cover ass'y Filter Ring Front decorative boards Barbed wire Heater cover on Barbed wire Under the heater cover Top cover Temp.sensor ass'y...
- Page 21 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Model : RSJ-35/300RDN3-D...
- Page 22 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Part Name Part Name The wind ring 16.7 Relay Filter Electronic Control Box Bracket Deck board The front cover On the heater cover cover Deck magnet Magnesium rod plug Magnet clip...
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Page 23: Part 3 Installation
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Part 3 Installation 1. Precautions ..............24 2. Installation information ..........25 3. Unit Appearance and Composition ......27 4. Accessories ..............29 5. Inspecting and Handling the Unit ........ 29... -
Page 24: Precautions
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 1. Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring of instructions may cause harm or damage. -
Page 25: Installation Information
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Water temperature over 50℃ can cause severe burns instantly or death from scalds. Children, disabled and elderly are at highest risk of being scalded. Feel water before bathing or showering. - Page 26 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Place where flammable gases or materials exist. Place where acid or alkali gases evaporate. 10) Other special environments. Precautions before installation Decide the correct way of conveying the equipment.
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Page 27: Unit Appearance And Composition
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 3. Unit Appearance and Composition Model : RSJ-15/190RDN3-D... - Page 28 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Model : RSJ-35/300RDN3-D...
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Page 29: Accessories
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 4. Accessories Check whether the following assemblies are complete. 5. Inspecting and Handling the Unit After delivery, the package should be checked and any damage should be reported immediately to the carrier claims agent. - Page 30 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 6.3 Power Supply Wiring . A. Power Supply Schematic Diagram Warming: Although there is a leakage protector in the electric control box of the unit, for the security reason, it is required that a leakage protection equipped cable and Earthing should be applied for the unit according to the requirement on the above diagram.
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Page 31: Part 4 Trial Operation
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Part 4 Trial Operation 1. Confirmation Before the Trial Operation ...... 32 2. Operation Instruction ............ 32 3. PCB explanation ............43 Maintenance ..............45 5. Malfunctions and Resolutions ........46... -
Page 32: Confirmation Before The Trial Operation
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 1. Confirmation Before the Trial Operation 1.1 All the installation is complete. 1.2 Water heater is installed correctly. 1.3 The pipelines and wiring are correct. 1.4 The accessories are installed correctly. - Page 33 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 2.1.2 After powered on, the display lights up. Users can operate the unit through the buttons under the display for different modes. Emptying: If the unit needs cleaning, moving etc, the tank should be emptied.
- Page 34 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Icon Description Wire controller: it will If connected a wire controller, will be lightened; otherwise be extinguished Outside solar heat source: If an outside solar heat source has been connected to the unit, it will flash with 1 Hz frequency;...
- Page 35 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 2.2.3 Operation Instruction 2.2.3.1 Preparation before running the unit. When you run the unit for the first time, all the indicators on the UI will light for 3 second, and the buzzer will “didi”...
- Page 36 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual d) Vacation Mode: After pressing "Vacation" button, the unit will automatically heat water to 15℃ for the purpose of energy saving during vacation days. e) Disinfect Mode: After pressing "...
- Page 37 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual CANCEL: CHECK: 2.2.3.7 Power On and Power Off Press “On/ Off” button after all the above have finished and the system will run as the setting. And simply press the same button to stop it.
- Page 38 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 2.2.3.9 Error Shooting If some errors happen, the buzzer will buzz 3 times every other minute and the error indicator will glitter fast. Press CANCEL for several seconds to stop the buzzer but the light will keep glittering.
- Page 39 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Correct earthing; Correct power supply; No obstacle outside the air inlet and outlet; 10) No air in the water pipeline and all valve opened; 11) Effective electric leakage protector; 12) Sufficient inlet water pressure(≥0.15MPa) 2.4 Refrigerant figure...
- Page 40 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Model: RSJ-35/300RDN3-D Compressor: Mitsubishi RB233GRDC, R134a compressor； E-heater: L ocated in the mid of tank, 3000W/230VAC; ATCO (Temp. Switch): If the water temperature is too high. If the temperature is higher than 78℃, the ATCO will automatically shut off the power of compressor and E-heater, and turn on it if the temperature fall down below 68℃;...
- Page 41 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual Fan motor will start with high speed 30s in advance of the start of compressor; After staring, Fan motor speed will be regulated by Tp ( Compressor discharge temperature) with...
- Page 42 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual When the self-protection happens, the buzzer will buzz in every other minute, the Warning indicator glitter and the display indicate the error code and water temperature alternatively. Press CANCEL button for 3sec to stop the alarm. All stop when he protection is resolved and error code disappears on the display.
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Page 43: Pcb Explanation
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 3. PCB explanation PCB I/O Ports description... - Page 44 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 3.2 SW1/SW2 Setting 3.3 Self-checking function For the convenience of maintenance and debug, query function is available by Press 2 buttons together: “ ” + “ ” ” ,then system running parameters will be shown one by one with following sequence by each pushing of "...
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Page 45: Maintenance
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 4 Maintenance 4.1 Maintenance 4.1.1 Check the connection between power supply plug and socket and ground wiring regularly; ℃ 4.1.2 In some cold area (below 0 ), if the system will be stopped for a long time, all the water should be released in case of freezing of inner tank and damage of e-heater. -
Page 46: Malfunctions And Resolutions
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 5 Malfunctions and Resolutions Malfunction Cause Resolutions Outlet water is Bad connection of power supply plug and Reconnect the plug; cold. socket; Set outlet water at a higher temperature; The display Outlet water is set an a low temperature;... -
Page 47: Mcac-Rtsm
MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual 6.2 Troubleshooting A. E0": Water tank temperature sensor (T5U) error Display Method of Check whether T5U temperature sensor cable are connected correctly. malfunction detection 1. Temperature sensor cables don’t connect correctly. - Page 48 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual B. E1": Water tank temperature sensor (T5L) error Display Method of Check whether T5L temperature sensor cable are connected correctly. malfunction detection 1. Temperature sensor cables don’t connect correctly. Supposed Causes 2.
- Page 49 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual C. "E4": The evaporator temperature sensor (T3) error Display Method of Check whether T3 temperature sensor cable are connected correctly. malfunction detection 1. Temperature sensor cables don’t connect correctly. Supposed Causes 2.
- Page 50 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual D. "E5": The ambient temperature sensor (T4) error Display Method of Check whether T4 temperature sensor cable are connected correctly. malfunction detection 1. Temperature sensor cables don’t connect correctly. Supposed Causes 2.
- Page 51 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual E. "E6": The discharge temperature sensor (Tp) error Display Method of Check whether Tp temperature sensor cable are connected correctly. malfunction detection 1. Temperature sensor cables don’t connect correctly. Supposed Causes 2.
- Page 52 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual F. "E8": Electric leakage protection error Display Method of Check whether the power line is damage. malfunction detection Supposed 1. The power line doesn’t pass through leakage detection components. Causes 2.
- Page 53 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual G. "E9": The suction temperature sensor (Th) error Display Method of Check whether Th temperature sensor cable are connected correctly. malfunction detection 1. Temperature sensor cables don’t connect correctly. Supposed Causes 2.
- Page 54 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual H. "EE": The E-heater has no current error Display Method of Check whether the power line is connected correctly. malfunction detection Supposed 1. The power voltage is too low or high Causes 2.
- Page 55 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual I. "Ed": EEPROM malfunction Display Method of Check whether EEPROM is normal malfunction detection Supposed 1. Something wrong with the outdoor unit PCB. Causes 2. Something wrong with the EEPROM.
- Page 56 MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual J. "EF": Clock chip error Display Method of Check whether the clock chip is damage. malfunction detection Supposed 1. The clock chip is damage. Causes 2. There is something wrong in the main board.
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