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Related Manuals for Midea MSQ-07CR
Summary of Contents for Midea MSQ-07CR
- Page 1 MSQ-07CR; MSQ-07HR MSQ-09CR; MSQ-09HR MSQ-12CR; MSQ-12HR...
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Page 2: Table Of Contents
Content Precaution ........................Ошибка! Закладка не определена. Safety Precaution ......................Ошибка! Закладка не определена. 1.1. Warning ........................Ошибка! Закладка не определена. 1.2. Function ....................................3 Dimension ..................................... 5 Indoor unit ....................................5 Outdoor unit .................................... 6 Specification ..................................8 Refrigerant cycle diagram ..............................10 Operation limits .................................. - Page 3 11.3 Protection ..................................... 31 11.4 Fan-only mode ..................................32 11.5 Cooling mode ..................................32 11.6 Dehumidifying mode ................................33 11.7 Heating mode ..................................34 11.8 Defrosting mode(available for heating mode) ........................35 11.9 Auto mode .................................... 36 11.10 Force cooling function ................................36 11.11 Sleep mode ..................................
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Page 4: Precaution
Service manual 1. Precaution 1.1. Safety Precaution To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. Before service unit, be sure to read this service manual at first. 1.2. - Page 5 Service manual power supply plug or turn off the breaker. Operational There is risk of product damage or failure, or unintended operation. Do not expose the skin directly to cool air for long periods of Take care to ensure that nobody could step on or fall onto the time.
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Page 6: Function
Service manual 2. Function Indoor unit Operation ON/OFF by remote controller Room temperature Maintain the room temperature in accordance with the setting temperature. Starting temperature control Indoor fan is delayed for 5 sec at the starting. Time Delay Safety control Restarting is for approx. - Page 7 Service manual Outdoor unit Power relay control The unit has 3 mins delay between continuously ON/OFF operations. 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. 4 way valve control It is only operated in the heating operation mode except defrosting operation.
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Page 8: Dimension
Service manual 3. Dimension 3.1 Indoor unit MSQ-07/09/12C(H)R... -
Page 9: Outdoor Unit
Service manual 3.2 Outdoor unit MSQ-07/09C(H)R... - Page 10 Service manual MSQ-12C(H)R...
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Page 11: Specification
Service manual 4. Specification Model MSQ3-07CR-QB8H MSQ3-07HR-QB8H MSQ3-09CR-QB8H Power supply Ph-V-Hz 1, 220-240V~,50Hz 1, 220-240V~,50Hz 1, 220-240V~,50Hz Capacity Btu/h 7000 7000 9000 Input 1000 Cooling Rated current 9.55 9.55 9.55 Capacity Btu/h 8000 Input Heating Rated current 10.2 Max. input consumption 1000 1000 1300... - Page 12 Service manual Model MSQ3-09HR-QB6 MSQ3-12CR-QB8 MSQ3-12HR-QB6 Power supply Ph-V-Hz 220V~,50Hz 220V~,50Hz 220V~,50Hz Capacity Btu/h 9000 12000 12000 Input 1000 1350 1350 Cooling Rated current 9.55 9.55 9.55 Capacity Btu/h 10000 13500 Input 1230 Heating Rated current 10.2 10.2 Max. input consumption 1300 1700 1700...
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Page 13: Refrigerant Cycle Diagram
Service manual 5. Refrigerant cycle diagram Cooling only Heat pump mode... -
Page 14: Operation Limits
Service manual 6. Operation limits 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. Heating operation Indoor air temp. -
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 MSQ3-07CR, MSQ3-09CR, MSQ3-12CR... - Page 17 Service manual MSQ3-07HR, MSQ3-09HR, MSQ3-12HR MSQ3-12HR...
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Page 19: Installation Details
Service manual 8. Installation details 8.1 Wrench torque sheet for installation Outside diameter Torque inch Kg.m φ6.35 φ9.52 φ12.7 8.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade Unit 8.3 Pipe length and the elevation Standard Max. -
Page 20: Air Purging Of The Piping And Indoor Unit
Service manual 8.4 Air purging of the piping and indoor unit Required tools: Hexagonal wrench; adjustable wrench; torque wrenches, wrench to hold the joints and gas leak detector. Note: The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration piping, it will affect the compressor, reduce the cooling capacity, and could lead to a malfunction of unit. -
Page 21: Pumping Down (Re-Installation)
Service manual 8.5 Pumping down (Re-installation) Procedure 1. Confirm that both the 2-way and 3-way valves are set to the opened position. Remove the valve stem caps and confirm that the valve stems are in the opened position. Be sure to use a hexagonal wrench to operate the valve stems. -
Page 22: Re-Air Purging (Re-Installation)
Service manual 8.6 Re-air purging (Re-installation) Procedure: 1. Confirm that both the 2-way and 3-way valves are set to the closed position. 2. Connect the charge set and a charging cylinder to the service port of the 3-way valve. Leave the valve on the charging cylinder closed. -
Page 23: Balance Refrigerant Of The 2-Way, 3-Way Valves
Service manual 8.7 Balance refrigerant of the 2-way, 3-way valves Procedure: 1. Confirm that both the 2-way and 3-way valves are set to the open position. 2. Connect the charge set to the 3-way valve’s service port. Leave the valve on the charge set closed. ... -
Page 24: Evacuation
Service manual 8.8 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 25: Gas Charging
Service manual 8.9 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 26: Pressure Table
Service manual 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. MSQ-07CR Cooling mode Outdoor temperature (Dry bulb temp) Indoor Conditions Pressure 25ºC 30ºC... -
Page 27: Msq3-09Cr
Service manual MSQ-09CR Cooling mode Outdoor temperature (Dry bulb temp) Indoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D Pressure 10.0 15ºC W ( kg/cm 24ºC D Pressure 10.1 17ºC W ( kg/cm 27ºC D Pressure 10.2 10.8 19ºC W ( kg/cm 32ºC D... -
Page 28: Msq3-12Cr
Service manual MSQ-12CR Cooling mode Outdoor temperature (Dry bulb temp) Indoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D Pressure 15ºC W ( kg/cm 24ºC D Pressure 10.0 10.4 17ºC W ( kg/cm 27ºC D Pressure 10.3 10.9 19ºC W ( kg/cm 32ºC D... -
Page 29: Capacity Table
Service manual 10. Capacity table 10.1 MSQ-07CR SUMMER OUTDOOR TEMPERATURE DRY Indoor 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions 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 30: Msq3-09Cr
Service manual WINTER OUTDOOR CONDITIONS 12ºC D 7ºC D 4ºC D 0ºC D -4ºC D -7ºC D Indoor Conditions 11ºC W 6ºC W 3ºC W -1ºC W -6ºC W -8ºC W Capacity kW 2.89 2.59 2.41 1.54 1.31 1.27 15ºC Input kW. -
Page 31: Msq3-09Hr
Service manual 10.4 MSQ-09HR SUMMER OUTDOOR TEMPERATURE DRY Indoor 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions 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 32: Msq3-12Cr
Service manual 10.5 MSQ-12CR SUMMER OUTDOOR TEMPERATURE DRY Indoor 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions Total capacity kW 3.31 3.14 2.92 2.68 2.45 2.28 21ºC D Sensitive capacity kW 2.53 2.28 2.18 2.07 1.96 1.88 15ºC W Input kW. 1.11 1.21 1.32... - Page 33 Service manual WINTER OUTDOOR CONDITIONS 12ºC D 7ºC D 4ºC D 0ºC D -4ºC D -7ºC D Indoor Conditions 11ºC W 6ºC W 3ºC W -1ºC W -6ºC W -8ºC W Capacity kW 4.67 4.14 3.64 2.31 1.90 1.83 15ºC Input kW.
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Page 34: 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 35: Fan-Only Mode
Service manual Current down I 3sec Compressor turn off (after 3 minute 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 36: Dehumidifying Mode
Service manual Auto fan at cooling mode: High fan Mid. fan Room temp. down Room temp. up Low fan T-Ts Anti-freezing control to indoor evaporator at cooling mode( T: evaporator temp. ) Compressor and outdoor fan on EVAP. temp. down EVAP. -
Page 37: Heating Mode
Service manual 11.7 Heating mode 11.7.1 Generally, the 4-way valve is open in heating mode, but it is closed in defrosting mode. 4-way valve must delay 2 minutes compared with compressor if the compressor changed into non-heating mode or turned off. 4-way valve doesn't delay in dehumidifying mode 11.7.2 Generally, the outdoor fan is turned off with the on-off action of compressor in heating mode, except for the defrosting... -
Page 38: Defrosting Mode(Available For Heating Mode)
Service manual Med fan Room temp. down Room temp. up High fan T-Ts 11.7.6 11.7.7 11.7.8 Indoor evaporator high-temperature protection at heating mode (T=indoor exchanger temp.) Compressor off Fan off Compressor on Fan off T temp. down T temp. up Compressor on Fan on 11.7.9... -
Page 39: Auto Mode
Service manual 11.8.2 Defrosting time If the temperature difference condition ① is satisfied for less than 40 minutes, this can be regarded as severe frosting. The defrosting time is 10 minutes. If the temperature difference condition ② is satisfied for more than 40 minutes, the defrosting time is 7.5minutes. If the temperature difference condition ①... -
Page 40: Sleep Mode
Service manual 11.10.3 All protections of remote control cooling are available at forced cooling operation 11.10.4 Forced Auto function Select forced auto function with the forced auto button or the switch. In forced auto status the A/C operates at remote control mode with a set temp. of 24℃ 11.11 Sleep mode 11.11.1... -
Page 41: Model And Parameters
Service manual 12. Model and Parameters Model MSQ-07CR MSQ-07HR MSQ-09CR MSQ-09HR MSQ-12CR MSQ-12HR I3SEC 8.5A 8.5A 10.0A 10.0A I5MIN 6.2A 6.2A 7.5A 7.5A IFAN 5.2A 5.2A 6.2A 6.2A IRESTORE 4.2A 4.2A IDEFROST 3.2A 4.5A 5.5A 28 ℃ 28 ℃ 28 ℃... -
Page 42: Troubleshooting
Service manual 13. Troubleshooting 13.1. For all cooling only model Failure phenomenon Operation lamp Timer lamp ☆ Indoor fan speed has been out of control for over 1 minute Indoor room temp. or evaporator sensor is open circuit or ☆ short circuit Over current protection of the ☆... -
Page 43: Diagnostic Chart
Service manual 13.3. Diagnostic chart After energizing, no indicator is lighted and the air conditioner can’t be operated. After energizing, the air conditioner can not be operated. Check if AC 220V power supply outputs to indoor PCB. Check if AC 220V exists at the primary coil of transformer. Indoor PCB is defective. -
Page 44: 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 45: Operation Lamp Off And Timer Lamp Flashes
Service manual 13.7. Operation lamp off and Timer lamp flashes Operation lamp off and Timer lamp flashes After changing the main control board, check if the failure realease. Indoor PCB is defective. The voltage of power supply is too low (less than 187V). Outdoor unit fault (such as the compressor). -
Page 46: Characteristic Of Temperature Sensor
Service manual 14. Characteristic of temperature sensor Resistance KΩ Resistance KΩ Resistance KΩ Temp. ℃ Temp. ℃ Temp. ℃ 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...