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Midea MSR1-09CR-NB6, Руководство по обслуживанию

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Service manual 

5 

 

The unit has 3 mins delay between continuously ON/OFF operations. 

Outdoor unit 

Power relay control 

Bird tail propeller fan makes the outdoor unit run more quietly. 

Low noise air flow system 

The hydrophilic fin can improve the heating efficiency at operation mode. 

Hydrophilic aluminum fin 

It is only operated in the heating operation mode except defrosting operation. 

Discharge pipe temperature protect 

Anti-rust cabinet 

Valve protection cover 

4 way valve control 

Содержание MSR1-09CR-NB6

Страница 1: ...Cover MSR1 09CR NB6 MSR1 09HR NB6 MSR1 12CR NB4 MSR1 12HR NB4 MSR1 18CR NB4 MSR1 18HR NB4...

Страница 2: ...7 4 Air purging of the piping and indoor unit 16 7 5 Pumping down Re installation 17 7 6 Re air purging Re installation 18 7 7 Balance refrigerant of the 2 way 3 way valves 19 7 8 Evacuation 20 7 9 G...

Страница 3: ...on often occurs during operation 32 10 5 Operation lamp flashes and Timer lamp off 32 10 6 Operation lamp flashes and Timer lamp on 32 10 7 Operation lamp off and Timer lamp flashes 33 10 8 Operation...

Страница 4: ...fire electric shock explosion or injury z Do not install the product on a defective installation stand It may cause injury accident or damage to the product z Be sure the installation area does not de...

Страница 5: ...not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation z Take care to ensure that nobody could step on...

Страница 6: ...securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage z Do not insert hands o...

Страница 7: ...or each operation mode The unit will decide the louver direction according to operation mode Two direction air vane The fan is turn to low speed cooling heating The unit will be turn off at the sevent...

Страница 8: ...makes the outdoor unit run more quietly Low noise air flow system The hydrophilic fin can improve the heating efficiency at operation mode Hydrophilic aluminum fin It is only operated in the heating...

Страница 9: ...3 Dimension 3 1 Indoor unit 1 3 3 2 Outdoor unit Dimension Mode W H D 9 12K 790 275 195 18K 928 275 195 Dimension Mode W H D L1 L2 L3 9K 700 522 250 458 275 537 12K 700 522 250 458 275 537 18K 780 540...

Страница 10: ...790 275 190 Packing W H D mm 865 350 265 865 350 265 Net Gross weight Kg 8 5 10 5 8 5 10 5 Model YDK30 6B YDK30 6B Brand Welling Welling Input W 72 72 Capacitor F 2 5 F 450V 2 5 F 450V Speed r min 86...

Страница 11: ...D mm 790 275 190 790 275 190 928 198 275 928 198 275 Packing W H D mm 865 350 265 865 350 265 1015 265 350 1015 265 350 Net Gross weight Kg 9 11 9 11 10 13 5 10 13 5 Model YDK30 6B YDK30 6B YDK36 6B...

Страница 12: ...Service manual 9 4 Refrigerant cycle diagram Cooling only Heat pump mode...

Страница 13: ...t from the continuous operation under constant air temperature conditions However excludes the initial pull down stage 5 2 Heating operation Indoor air temp DB Outdoor unit air temp DB Note The chart...

Страница 14: ...Service manual 11 6 Wiring diagram Intdoor MSR1 09CR NB6 MSR 12CR NB4 6 Outdoor MSR1 09CR NB6 MSR1 12CR NB4 6 Indoor MSR1 09HR NB6 MSR1 12HR NB4 6...

Страница 15: ...Service manual 12 Outdoor MSR1 09HR NB6 MSR1 12HR NB4 6 Indoor MSR1 18CR NB4 6...

Страница 16: ...Service manual 13 Outdoor MSR1 18CR NB4 6 Indoor MSR1 18HR NB4 6...

Страница 17: ...Service manual 14 Outdoor MSR1 18HR NB4 6...

Страница 18: ...ons sheet Grade Unit 7K 9K 12K 18K mm2 1 0 1 0 1 5 2 5 7 3 Pipe length and the elevation Pipe size Capacity Btu h GAS LIQUID Standard length m Max Elevatio n B m Max Pipe length A m Additional refrige...

Страница 19: ...Check the flare connection for gas leakage Purge the air from the system Set the 2 way valve to the open position and remove the cap from the 3 way valve s service port Using the hexagonal wrench to p...

Страница 20: ...e charge hose with the push pin to the gas service port Air purging of the charge hose Open the low pressure valve on the charge set slightly to purge air from the charge hose Set the 2 way valve to t...

Страница 21: ...r 1 minutes repeat 3 times After purging the air use a torque wrench to tighten the flare nut to on the 2 way valve Check the gas leakage Check the flare connections for gas leakage Discharge the refr...

Страница 22: ...e service port Open the valves Low side on the charge set and discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa If there is no air in the refrigeration cycle the pressure when the ai...

Страница 23: ...has moved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes a...

Страница 24: ...e specified amount of refrigerant if can be charged with a little at a time approximately 150g each time0 while operating the air conditioner in the cooling cycle however one time is not sufficient wa...

Страница 25: ...ature protection restoring temperature TE7 Evaporator high temperature protection compressor off temperature TE8 Evaporator high temperature protection fan off temperature TE9 Evaporator high temperat...

Страница 26: ...essor On the unit stops and LED displays failure information and can t returns to normal operation automatically 8 4 Fan only mode Fan speed is high mid low Auto 8 5 Cooling mode The 4 way valve is cl...

Страница 27: ...nd Outdoor Fan LOW ON 6minutes BREEZE OFF 4minutes LOW ON 5minutes BREEZE OFF 5minutes LOW ON 4minutes BREEZE OFF 6minutes A B C Repeat on and off cycle 8 6 3 Low room temperature protection When room...

Страница 28: ...ressor in heating mode except for the defrosting mode or the end of defrost 8 7 3 Action of compressor and outdoor fan motor at heating mode compressor must run for 7 minutes after starting and then j...

Страница 29: ...re B The temperature difference of evaporator and room temperature meets one of the following 8 8 2 Calculate from the end of latest defrost evaporator high temp Protection only closes outdoor fan wit...

Страница 30: ...on modes cooling heating or fan only according to the temperature difference between room temperature TA and set temperature TS 1 TA TS 2 Heating fan only at cooling only Fan only Cooling 8 9 2 The in...

Страница 31: ...l maintain as a constant and the air circulation is kept at low speed Anti cold function takes precedence over all The total time is 7 hours after 7 hours the unit stops 8 11 4 Auto After an hour runn...

Страница 32: ...2A 16A I5MIN 8 5A 10A 15A IFAN 6 5A 9A 11A IRESTORE 5 5A 8A 9 5A IDEFROST 4 5A 6 5A 7 5A TE1 28 34 34 TE2 32 37 36 TE3 30 33 30 TE4 26 22 20 TE5 4 4 3 TE6 10 10 14 TE7 60 63 60 TE8 53 53 52 TE9 51 52...

Страница 33: ...ts in heating operating At this time PRE DEF indicator illuminates Auto indicator This indicator flashes when the air conditioner is in AUTO operation ECON indicator This indicator illuminates while t...

Страница 34: ...Service manual 31 10 3 Diagnostic chart After energizing no indicator is lighted and the air conditioner can t be operated...

Страница 35: ...s that the instantaneous voltage of main chip is less than 4 5V Check according to the following procedure 10 5 Operation lamp flashes and Timer lamp off Is connector connection good Is voltage being...

Страница 36: ...10 8 Operation lamp on and Timer lamp flashes EEROM error indoor PCB is defective 10 9 Operation lamp flashes Timer lamp flashes This is alarm signal when the main chip can t detect over zero signal...

Страница 37: ...25 10 52 3 1918 1 37 1988 26 9 5507 53 3 0707 0 35 2024 27 9 1245 54 2 959 1 33 3269 28 8 7198 55 2 8442 2 31 5635 29 8 3357 56 2 7382 3 29 9058 30 7 9708 57 2 6368 4 28 3459 31 7 6241 58 2 5397 5 26...

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