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Related Manuals for Midea MSE-07CR
Summary of Contents for Midea MSE-07CR
- Page 1 Cover MSE-07CR; MSE-07HR MSE-09CR; MSE-09HR MSE-12CR; MSE-12HR MSE-18CR; MSE-18HR...
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Page 2: Table Of Contents
Pumping down (Re-installation)....................19 Re-air purging (Re-installation)....................20 Balance refrigerant of the 2-way, 3-way valves................21 Evacuation ..........................23 Gas charging ..........................24 Pressure table ......................25 MSE-07CR..........................25 MSE-07HR..........................25 MSE-09CR..........................26 MSE-09HR..........................26 MSE-12CR..........................27 MSE-12HR..........................27 MSE-18CR..........................28 MSE-18HR.......................... - Page 3 Content 10.3 MSE-09CR..........................30 10.4 MSE-09HR..........................30 10.5 MSE-12CR..........................31 10.6 MSE-12HR..........................31 10.7 MSE-18CR..........................32 10.8 MSE-18HR..........................32 Electronic function.....................33 11.1 Proper symbols and their meaning..................... 33 11.2 Function ............................33 11.3 Protection............................ 33 11.4 Fan-only mode..........................34 11.5 Cooling mode..........................
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Page 4: Precaution
Service manual 1. Precaution 1.1 Safety Precaution n To prevent injury to the user or other people and property damage, the following instructions must be followed. n Incorrect operation due to ignoring instruction will cause harm or damage. n Before service unit, be sure to read this service manual at first. 1.2 Warning Ø... - Page 5 Service manual failure. Ø Operational n When the product is soaked (flooded or submerged), n Do not expose the skin directly to cool air for long contact an Authorized service center. There is risk of fire or electric shock. periods of time. (Do not sit in the draft). n Be caution that water could not enter the product.
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Page 6: Function
Service manual 2. Function Indoor unit Operation ON/OFF by remote controller Sensing by room temperature Room temperature sensor. Pipe temperature sensor. Room temperature control Maintain the room temperature in accordance with the setting temperature. Starting temperature control Tele Remote control (Optional) Indoor fan is delayed for 5 sec at the starting. - Page 7 Service manual Outdoor unit Power relay control The unit has 3 mins delay between continuously ON/OFF operations. Low ambient kit The unit can operate in cooling mode at low ambient temperature conditions. Low noise air flow system Bird tail propeller fan makes the outdoor unit run more quietly. Hydrophilic aluminum fin The hydrophilic fin can improve the heating efficiency at operation mode.
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Page 8: Dimension
Service manual 3. Dimension 3.1 Indoor unit Dimension Mode... -
Page 9: Outdoor Unit
Service manual 3.2 Outdoor unit Dimension Mode... -
Page 10: Specification
Service manual 4. Specification Model MSE-07CR MSE-07HR MSE-09CR MSE-09HR Power supply Ph-V-Hz 1,220-240V~,50Hz 1,220-240V~,50Hz 1,220-240V~,50Hz 1,220-240V~,50Hz Capacity Btu/h 7000 7000 9000 9000 Input 1000 1000 Cooling Rated current Btu/wh Capacity Btu/h 8000 10000 Input Heating Rated current Max. input consumption... - Page 11 Service manual Model MSE-12CR MSE-12HR MSE-18CR MSE-18HR Power supply Ph-V-Hz 1,220-240V~,50Hz 1,220-240V~,50Hz 1,220-240V~,50Hz 1,220-240V~,50Hz Capacity Btu/h 12000 12000 18000 18000 Input 1300 1300 2000 2000 Cooling Rated current Btu/w.h 9.2,2.7 9.2,2.7 9.0,2.6 9.0,2.6 Capacity Btu/h 13000 20000 Input 1270 2020 Heating Rated current Max.
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Page 12: Refrigerant Cycle Diagram
Service manual 5. Refrigerant cycle diagram Ø Cooling only Ø Heat pump mode... -
Page 13: Operation Limits
Service manual 6. Operation limits 6.1 Cooling operation Outdoor unit air temp.℃ DB Indoor air temp. ℃ DB Note: The chart is the result from the continuous operation under constant air temperature conditions. However, excludes the initial pull-down stage. 6.2 Heating operation Indoor air temp. - Page 14 Service manual...
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Page 15: Schematic Diagram And Wiring Diagram
Service manual 7. Schematic diagram and Wiring diagram 7.1. Schematic diagram... -
Page 16: Wiring Diagram
Service manual 7.2. Wiring diagram MSE-07CR, MSE-09CR, MSE-12CR... - Page 17 Service manual MSE-07HR, MSE-09HR, MSE-12HR...
- Page 18 Service manual MSE-18CR I N D O O R U N I T O U TD O O R U N I T Y&G R ED BLAC K BLAC K O VER LO AD BLAC K R ELAY C O M PR ESSO R M O TO R BLU E R ED...
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Page 19: Service Manual
Service manual MSE-18HR I N D O O R U N I T O U TD O O R U N I T BLU E Y&G BLU E R ED 4- W AY BLAC K O VER LO AD R ELAY BLAC K BLAC K C O M PR ESSO R... -
Page 20: Installation Details
Service manual 8. Installation details Wrench torque sheet for installation Outside diameter Torque inch Kg.m φ6.35 φ9.52 φ12.7 φ15.88 φ19.05 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade Unit Pipe length and the elevation Standard Max. -
Page 21: Air Purging Of The Piping And Indoor Unit
Service manual In case that more than 5m. Caution: Capacity is base on standard length and maximum allowance length is base of reliability. Oil trap should be install per 5-7 meters. Air purging of the piping and indoor unit Required tools: Hexagonal wrench;... -
Page 22: Pumping Down (Re-Installation)
Service manual 5. Use torque wrench to tighten the service Caution: port cap to a torque of 1.8 kg.m. (18n.m) If gas leakage is discovered in step (3) above, 6. Set the 3-way valve to the opened position. take the following measures. 7. -
Page 23: Re-Air Purging (Re-Installation)
Service manual § Open the low-pressure valve on the charge set slightly to purge air from the charge hose. 5. Set the 2-way valve to the close position. 6. Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0.1MPa. 7. -
Page 24: Balance Refrigerant Of The 2-Way, 3-Way Valves
Service manual § Check the flare connections for gas leakage. 5. Discharge the refrigerant. § Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicate 0.3 to 0.5 Mpa. 6. Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open position. - Page 25 Service manual discharged.
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Page 26: Evacuation
Service manual Evacuation Procedure: 1. Connect the vacuum pump to the charge set’s centre hose. 2. Evacuation for approximately one hour. § Confirm that the gauge needle has moved toward -0.1 Mpa (-76 cmHg) [vacuum of 4 mmHg or less]. 3. -
Page 27: Gas Charging
Service manual Gas charging Procedure: 1. Connect the charge hose to the charging cylinder. § Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. 2. Purge the air from the charge hose. §... -
Page 28: Pressure Table
§ 9. Pressure table Note: The pressure data is from 3 way valve, the pressure data are pressure above atmosphere. D: Dry bulb temp. W: Wet bulb temp. 9.1 MSE-07CR Cooling mode Outdoor temperature (Dry bulb temp) Indoor 25ºC 30ºC 35ºC... -
Page 29: Mse-09Cr
Service manual 9.3 MSE-09CR Cooling mode Outdoor temperature (Dry bulb temp) Indoor 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions Pressure 21ºC D Pressure 15ºC W (kg/cm 24ºC D Pressure 17ºC W (kg/cm 27ºC D Pressure 19ºC W (kg/cm 32ºC D Pressure 23ºC W (kg/cm... -
Page 30: Mse-12Cr
Service manual 9.5 MSE-12CR Cooling mode Outdoor temperature (Dry bulb temp) Indoor 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions Pressure 21ºC D Pressure 4.32 15ºC W (kg/cm 24ºC D Pressure 17ºC W (kg/cm 27ºC D Pressure 19ºC W (kg/cm 32ºC D Pressure 23ºC W (kg/cm... -
Page 31: Mse-18Cr
Service manual 9.7 MSE-18CR cooling mode outdoor temperature(Dry bulb temp) Indoor conditions 25℃ 30℃ 35℃ 40℃ 45℃ 50℃ pressure pressure(kg/cm2) 21℃ D15℃ W pressure(kg/cm2) 24℃ D17℃ W pressure(kg/cm2) 27℃ D19℃ W pressure(kg/cm2) 32℃ D23℃ W 9.8 MSE-18HR cooling mode outdoor temperature(Dry bulb temp) Indoor conditions 25℃... -
Page 32: Capacity Table
Service manual 10. Capacity table 10.1 MSE-07CR SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 2.02 1.92 1.79 1.64 1.51 1.41 21ºC D Sensitive capacity kW 1.44 1.39 1.34 1.27 1.20 1.15 15ºC W Input kW. -
Page 33: Mse-09Cr
Service manual 10.3 MSE-09CR SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 2.44 2.32 2.16 1.98 1.82 1.70 21ºC D Sensitive capacity kW 1.68 1.63 1.56 1.48 1.40 1.34 15ºC W Input kW. 0.87 0.95 1.02... -
Page 34: Mse-12Cr
Service manual 10.5 MSE-12CR SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 3.38 3.21 2.99 2.75 2.52 2.35 21ºC D Sensitive capacity kW 2.53 2.28 2.18 2.07 1.96 1.88 15ºC W Input kW. 1.20 1.30 1.41... -
Page 35: Mse-18Cr
Service manual 10.7 MSE-18CR SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 4.69 4.45 4.15 3.81 3.50 3.27 21ºC D Sensitive capacity kW 3.28 3.18 3.04 2.88 2.74 2.62 15ºC W Input kW. 1.70 1.84 1.99... -
Page 36: Electronic Function
Service manual 11. Electronic function 11.1 Proper symbols and their meaning TA: Indoor ambient temperature TE: Indoor evaporator temperature TS: Setting temperature through the remote controller : Self-protection amp of compressor, continue three seconds until turns off the compressor. 3sec : Self-protection amp of compressor, continue five minutes until turns off the compressor. -
Page 37: Fan-Only Mode
Service manual Current down I 3sec Compressor turn off (after 5 second later) I 5min Current up Compressor turn off (after 5 minute later) I fan The outdoor fan turn off (heating) I restore The outdoor fan turn Indoor fan: On low speed (cooling) compressor: On outdoor fan:On... -
Page 38: Dehumidifying Mode
Service manual Anti-freezing control to indoor evaporator at cooling mode ( T: evaporator temp. ) 11.6 Dehumidifying mode 11.6.1 The 4-way valve is off in dehumidifying mode 11.6.2 Compressor and Indoor Fan actions in dehumidifying mode Indoor Block Compressor and Outdoor Fan ON 6minutes BREEZE OFF 4minutes ON 5minutes... - Page 39 Service manual after starting and then judge temperature. Meanwhile other protections are still valid. * This parameter can be changed from 0 to 3. 11.7.4 Indoor Fan actions at heating mode Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold wind function prevails.
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Page 40: Defrosting Mode (Available For Heating Mode)
Service manual 11.7.7 The louver opens to Standard Angle ANGLHEAT when power is on for the first time 11.8 Defrosting mode (available for heating mode) 11.8.1 Defrosting condition: Defrosting starts when either of the following ①&② : ① A and B are satisfied: A: The compressor keeps running for 40 minutes or more. -
Page 41: Auto Mode
Service manual 11.9 Auto mode 11.9.1 The air conditioner automatically selects one of the following operation modes: cooling, heating or fan only according to the temperature difference between room temperature (TA) and set temperature (TS). Heating (fan only at cooling only) Fan only Cooling TA-TS... -
Page 42: Auto Restart Function
Service manual The set temperature rise 1℃ per hour. Two hours later, the set temperature will maintain as a constant and the fan speed is kept at low speed. The total time is 7 hours, after 7 hours the unit stops. 11.11.3 Heating: The set temperature decrease 1℃... -
Page 43: Model And Parameters
Service manual Model MSE- MSE- MSE- MSE- MSE- MSE- MSE- MSE- 07CR 07HR 09CR 09HR 12CR 12HR 18CR 18HR 8.5A 8.5A 10.0A 10.0A 12.0A 12.0A 16.0A 16.0A 3SEC 6.5A 6.5A 7.5A 7.5A 8.5A 8.5A 13.0A 13.0A 5MIN 5.5A 5.5A 5.5A 5.5A 7.5A 7.5A... -
Page 44: Troubleshooting
Service manual 13. Troubleshooting 13.1 Display board Signal receptor AU TO indicator Thi s indicator illuminates whe n the air conditioner i s in AUTO operation. DE FROST indicator (F or Cooling & H eating mo dels only) Thi s indicator illuminates whe n the air conditioner starts defrostin g automati cally or when the warm air control fea ture is activated in he ating oper ation. -
Page 45: Diagnostic Chart
Service manual 13.3 Diagnostic chart After energizing, no indicator is lighted and the air conditioner can’t be operated. -
Page 46: Resetting Phenomenon Often Occurs During Operation
Service manual 13.4 Resetting phenomenon often occurs during operation. (That is automatically entering to the status when power is on.) The reason is that the instantaneous voltage of main chip is less than 4.5V. Check according to the following procedure: Resetting phenomenon often occurs during operation. -
Page 47: Operation Lamp Off And Timer Lamp Flashes
Service manual 13.7 Operation lamp off and Timer lamp flashes 13.8 Operation lamp on and Timer lamp flashes EEROM error, indoor PCB is defective. 13.9 Operation lamp flashes, Timer lamp flashes . This is alarm signal when the main chip can’t detect over-zero signal. When such failure occurs, the main control board must have fault. -
Page 48: Characteristic Of Temperature Sensor
Service manual 14. Characteristic of temperature sensor Temp.℃ Resistance KΩ Temp.℃ Resistance KΩ Temp.℃ Resistance KΩ 62.2756 14.6181 4.3874 58.7079 13.918 4.2126 56.3694 13.2631 4.0459 52.2438 12.6431 3.8867 49.3161 12.0561 3.7348 46.5725 11.5 3.5896 10.9731 3.451 41.5878 10.4736 3.3185 39.8239 3.1918 37.1988 9.5507...