Table of Contents
Related Manuals for Midea MSV1-07CR-QB8F
Summary of Contents for Midea MSV1-07CR-QB8F
- Page 1 MSV1-07CR-QB8F MSV1-07HR-QB8F MSV1-09CR-QB8F MSV1-09HR-QB8F MSV1-12CR-QB8F MSV1-12HR-QB8F MSV1-18CR-QB8F MSV1-18HR-QB8F MSV1-07CR-NC2F MSV1-07HR-NC2F MSV1-09CR-NC2F MSV1-09HR-NC2F MSV1-12CR-NC2F MSV1-12HR-NC2F MSV1-18CR-QB8F MSV1-18HR-QB8F...
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Page 3: Table Of Contents
Content Content 1 Precaution..........................1 1.1 Safety Precaution ............................1 1.2 Warning ..............................1 2 Function ..........................4 3 Dimension..........................5 4 Specification........................6 5 Refrigerant cycle diagram ....................10 6 Operation limits ......................... 11 7 Wiring diagram ........................12 8 Installation details ......................16 8.1 Wrench torque sheet for installation......................16 8.2 Connecting the cables.......................... - Page 4 Content 11.4 Resetting phenomenon often occurs during operation................. 37 11.5 Indoor Unit Error Display：E3....................... 37 11.6 Indoor Unit Error Display：E5 or E6 ..................... 38 11.7 Indoor Unit Error Display：E4 ....................... 38 11.8 Indoor Unit Error Display：E1 ....................... 38 11.9 Indoor Unit Error Display：E2 .......................
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Page 5: 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 Warning Ø... - Page 6 Service manual § Do not place anything on the power cable. There is risk of fire or electric shock. § Do not plug or unplug the power supply plug during operation. There is risk of fire or electric shock. § Do not touch (operation) the product with wet hands. There is risk of fire or electric shock.
- Page 7 Service manual § Use two or more people to lift and transport the product. Avoid personal injury. § Do not install the product where it will be exposed to sea wind (salt spray) directly. It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation.
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Page 8: Function
Service manual 2 Function 20. Ionizer Ø Indoor unit The function is operated by remote controller. 1. Operation ON/OFF by remote controller 21．Follow me. 2. Sensing by room temperature Room temperature sensor. Pipe temperature The function is operated by remote controller. 22. -
Page 9: Dimension
Service manual 3 Dimension Indoor unit D i m ensi on M ode outdoor unit Dimension Mode 9K(50Hz) 9K(60Hz) - 5 -... -
Page 10: Specification
Service manual 4 Specification Model MSV1-07CR-QB8F MSV1-07HR-QB8F MSV1-07CR-NC2F MSV1-07HR-NC2F Power supply Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz 1, 220-230V~, 60Hz 1, 220-230V~, 60Hz Capacity Btu/h 7000 7000 7000 7000 Input Cooling Rated current Btu/w.h 9.55 9.55 10.9 10.9 Capacity Btu/h ——... - Page 11 Service manual Model MSV-09CR-QB8F MSV-09HR-QB8F MSV-09CR-NC2F MSV-09HR-NC2F Power supply Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz 1, 220-230V~, 60Hz 1, 220-230V~, 60Hz Capacity Btu/h 9000 9000 9000 9000 Input Cooling Rated current 9.55 9.55 10.9 10.9 Btu/w.h ___________ ___________ Capacity Btu/h 10000 10000...
- Page 12 Service manual Model MSV1-12CR-QB8F MSV1-12HR-QB8F MSV1-12CR-NC2F MSV1-12HR-NC2F Power supply Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz 1, 220-230V~, 60Hz 1, 220-230V~, 60Hz Capacity Btu/h 12000 12000 12000 12000 Input 1260 1260 1100 1100 Cooling Rated current Btu/w.h 9.55 9.55 10.9 10.9 Capacity Btu/h...
- Page 13 Service manual Model MSV1-18CR-QB8F MSV1-18HR-QB8F Power supply Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz Capacity Btu/h 17000 17000 Input 1650 1650 Cooling Rated current Btu/w.h 9.55 9.55 Capacity Btu/h ___________ 19000 Input ___________ 1800 Heating Rated current ___________ Btu/w.h ___________ 10.24 Max.
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Page 14: Refrigerant Cycle Diagram
Service manual 5 Refrigerant cycle diagram Ø Cooling only Ø Heat pump mode - 10 -... -
Page 15: 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 16: Wiring Diagram
Service manual conditions. However, excludes the initial pull-down stage. 7 Wiring diagram MSV1-07CR-QB8F MSV1-09CR-QB8F MSV1-12CR-QB8F MSV1-07CR-NC2F MSV1-09CR-NC2F MSV1-12CR-NC2F MSV1-18CR-QB8F Indoor unit ( I N D O OR U N I T ) SW I N G M OTO R AN I O N G EN E RATO R... - Page 17 Service manual 2( N) Y EL LO W / GR EEN BLAC K O V ER LO AD R E LAY ( I NTE R N AL / B LAC K RE D R E D E X TER N AL B LA CK D E PEN D I NG O N M O D ELS )
- Page 18 Service manual MSV1-07HR-QB8F MSV1-09HR-QB8F MSV1-12HR-QB8F MSV1-07HR-NC2F MSV1-09HR-NC2F MSV1-12HR-NC2F MSV1-18HR-QB8F Indoor unit ( I N D O O R U NI T ) SW I N G M O TO R A N I O N G EN ER ATO R SW I TC H BO A RD Y/ G C O NT R O L TO P AI R...
- Page 19 Service manual I ND OO R UNI T OUTDO OR UN I T 1 2 (N ) 3 4 BL UE Y&G 4- W AY OV ER LOAD BL ACK BL UE R EL AY BL ACK C BL ACK C OM PR ESS OR R ED R( M )
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Page 20: 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 φ15.88 φ19.05 8.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade 8.3 Pipe length and the elevation Standard Max. -
Page 21: 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 22: Pumping Down (Re-Installation)
Service manual service port. Caution: If gas leakage is discovered in step (3) above, take the following measures. If the leaks stop when the piping connections are tightened further, continue working from step (4). If the gas leaks do not stop when the connections are retightened, repair the location of the leak, discharge all of the gas through the service port, and then recharge with the specified amount of gas from a gas cylinder. -
Page 23: Re-Air Purging (Re-Installation)
Service manual Do this quickly so that the gauge ends up indicating 0.3 to 0.5Mpa. 8. Disconnect the charge set, and amount the 2-way and 3-way valve’s stem nuts and service port caps. Use a torque wrench to tighten the service port cap to a torque of 1.8 kg.m. Be sure to check for gas leakage. -
Page 24: 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. Connect the charge hose with the push pin to the service port. -
Page 25: 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 26: 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. Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air (be careful of the liquid refrigerant). -
Page 27: Electronic Function
Service manual 9 Electronic function 9.1 Electronic control working environment Input voltage: 198~253V Input power frequency: 50/60Hz Ambient temperature: -7°C+43°C Indoor fan normal working amp is less than 1A Outdoor fan normal working amp is less than 1.5A Four-way valve normal working amp is less than 1A Swing motor: DC12V Compressor: single-phase power supply. -
Page 28: Function
Service manual 9.3 Function Remote receiving Testing and forced running Position set for indoor unit wind vane LCD displaying and alarm Timer On or off Protection for the compressor Current protection High temperature protection of indoor heat exchanger at heating mode Auto defrosting and heating recovery at heating mode Anti cold air at heating mode Anti frozen at cooling mode... -
Page 29: Fan Only Mode
Service manual 9.5 Fan only mode Fan speed is high/mid/low/ Auto 9.6 Cooling mode The 4-way valve is closed at cooling mode. The action of the compressor and the outdoor fan:(T=indoor temperature) Auto fan at cooling mode: Anti-freezing control to indoor evaporator at cooling mode ( T: evaporator temp. ) Condenser high temperature protection (only for heat pump) - 25 -... -
Page 30: Dehumidifying Mode
Service manual 9.7 Dehumidifying mode Indoor fan speed at low speed. Protection is same as cooling mode. 9.8 Heating mode 9.8.1 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. -
Page 31: Defrosting Mode(Available For Heating Mode)
Service manual 9.8.6 Indoor evaporator high-temperature protection at heating mode (T=indoor exchanger temp.) The louver opens to Standard Angle ANGLHEAT when power is on for the first time 9.9 Defrosting mode(available for heating mode) 9.9.1 Defrosting condition: Defrost starts when either of the following: T3 lower than 0’C, lasts for more than 40 minutes, provided that the time period then the temperature is lower than -3’C consecutively reaches 3 minutes. -
Page 32: Auto Mode
Service manual 9.10 Auto mode 9.10.1 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). 9.10.2 The indoor fan blows automatically in corresponding selected mode； 9.10.3 The motion of indoor fan’s blade should accord with the selected operation mode；... -
Page 33: 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. 9.12.3 Heating: The set temperature decrease 1℃ per hour. Two hours later, the set temperature will maintain as a constant and the air circulation is kept at low speed (Anti-cold function takes precedence over all). -
Page 34: Follow Me Function
Service manual down. 9.15 Follow me function 9.15.1 This function starts when the indoor unit received the signal from remote controller, and the air conditioner is operated by the temperature information included in the signal and the set temperature. In this mode, the indoor temperature sensor in the indoor unit is inactive. 9.15.2 When the indoor unit received the signal by pressing the button of remote controller, the buzzer in indoor unit will sound once. - Page 35 Service manual - 31 -...
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Page 36: Model And Parameters
Service manual 10 Model and Parameters Model DELAY_TIME 127sec 127sec 127sec DEFROST_TIME 7.5min 7.5min 7.5min I3SEC 10.0 12.0 I5MIN IFAN IRESTORE IDEFROST THDEFROST TMDEFROST TLDEFROST ANGLRANGE ANGLOFF ANGLCOOL ANGLHEAT ANGLCSL ANGLCSH ANGLHSL ANGLHSH ANGLDL ANGLDH ANGLFL ANGLFH HSPEEDH 1000 1080 1280 HSPEEDM 1060... - Page 37 Service manual Model DELAY_TIME 127sec DEFROST_TIME 7.5min I3SEC I5MIN IFAN IRESTORE IDEFROST THDEFROST TMDEFROST TLDEFROST ANGLRANGE ANGLOFF ANGLCOOL ANGLHEAT ANGLCSL ANGLCSH ANGLHSL ANGLHSH ANGLDL ANGLDH ANGLFL ANGLFH HSPEEDH 1280 HSPEEDM 1100 HSPEEDL 1000 HSPEEDS CSPEEDP 1280 CSPEEDH 1250 CSPEEDM 1100 CSPEEDL CSPEEDS - 33 -...
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Page 38: Troubleshooting
Service manual 11 Troubleshooting 11.1 LCD Display board ON/OFF indicator This indicator illuminates when the air conditioner is in operation. AUTO indicator This indicator illuminates when the indoor air exchange with the outdoor air. TIMER indicator This indicator illuminates when TIMER is set ON/OFF. Ionizer(Clean air) indicator This indicator illuminates when the ionizer function is activated. -
Page 39: Indoor Unit Error Display
Service manual Indoor fan indicator This display is separated into three zones. Once the indoor fan is on, the zones illuminate gradually DIGITAL DISPLAY indicator Displaying the current set temperature when the air conditioner is in operation. When Self-Clean feature is activated, it displays FAN SPEED indicator This indicator illuminates when change the fan speed. -
Page 40: Diagnostic Chart
Service manual 11.3 Diagnostic chart After energizing, no indicator is lighted and the air conditioner can’t be operated. - 36 -... -
Page 41: Resetting Phenomenon Often Occurs During Operation
Service manual 11.4 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 42: Indoor Unit Error Display：e5 Or E6
Service manual 11.6 Indoor Unit Error Display：E5 or E6 11.7 Indoor Unit Error Display：E4 11.8 Indoor Unit Error Display：E1 EEROM error, indoor PCB is defective. 11.9 Indoor Unit Error Display：E2 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 43: Haracteristic Of Temperature Sensor
Service manual 12 haracteristic 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...