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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.

After changing indoor PCB, check if the failure realease.

Yes

After changing indoor fan motor, check if the failure realease.

Yes

YES

Yes

Power supply circuit has problems.

Indoor PCB is defective.

13.5 Operation lamp flashes and Timer lamp off

13.6 Operation lamp flashes and Timer lamp on

Содержание MSH-07CR

Страница 1: ...Cover MSH 07CR MSH 07HR MSH 09CR MSH 09HR MSH 12CR MSH 12HR MSH 16CR MSH 16HR MSH 18CR ...

Страница 2: ...ion details 21 8 1 Wrench torque sheet for installation 21 8 2 Connecting the cables 21 8 3 Pipe length and the elevation 21 8 4 Air purging of the piping and indoor unit 23 8 5 Pumping down Re installation 24 8 6 Re air purging Re installation 25 8 7 Balance refrigerant of the 2 way 3 way valves 26 8 8 Evacuation 27 8 9 Gas charging 28 9 Pressure table 29 9 1 MSH 07CR 29 9 2 MSH 07HR 29 9 3 MSH 0...

Страница 3: ... 10 Force cooling function 42 11 11 Sleep mode 43 11 12 Auto restart function 43 11 13 PLASMA optional 43 11 14 Turbo mode 43 12 Model and Parameters 44 13 Troubleshooting 45 13 1 Display board 45 13 2 Troubleshooting 45 13 3 Diagnostic chart 46 13 4 Resetting phenomenon often occurs during operation 47 13 5 Operation lamp flashes and Timer lamp off 47 13 6 Operation lamp flashes and Timer lamp on...

Страница 4: ...vane The fan is turn to low speed cooling heating The unit will be turn off at the seventh hour Sleep mode auto control The function is usually used in rainy days in springtime or damp areas Independent dehumidification The louver can be set at the desired position or swing up and down automatically Air flow Direction control The mode can be change by the room temperature Auto mode Easy clean pane...

Страница 5: ...luminum fin It is only operated in the heating operation mode except defrosting operation Anti rust cabinet Valve protection cover 4 way valve control Made from electrolytic zinc steel sheet and anti rust coated components It protects the valves and prevents water from dripping Low noise air flow system Bird tail propeller fan makes the outdoor unit run more quietly Discharge pipe temperature prot...

Страница 6: ...imension Mode W H D 7K 750 250 205 9K 750 250 205 12K 815 280 215 16K 920 293 224 18K 920 293 224 Dimension Mode W H D L1 L2 L3 7K 700 535 250 458 280 540 9K 700 535 250 458 280 540 12K 780 527 242 548 266 540 16K 780 527 242 548 266 540 18K 845 690 335 560 360 695 ...

Страница 7: ...3H Brand WEILING WEILING WEILING WEILING Input W 36 5 36 5 36 5 36 5 Capacitor uF 1 2uf 450V 1 2uf 450V 1 2uf 450V 1 2uf 450V Indoor fan motor Speed hi mi lo r min 1020 920 900 1020 920 900 1100 1020 950 1100 1020 950 Indoor air flow Hi Mi Lo m3 h 380 350 320 380 350 320 450 420 390 450 420 390 Indoor noise level Hi Mi Lo dB A 35 33 31 35 33 31 37 35 32 37 35 32 Model YDK24 6T YDK24 6T YDK24 6F YD...

Страница 8: ... Input W 49 2 49 2 55 55 Capacitor uF 1 5uf 450V 1 5uf 450V 1 5UF 450V 1 5UF 450V Indoor fan motor Speed hi mi lo r min 1220 1000 800 1220 1000 800 1180 1080 800 1180 1080 800 Indoor air flow Hi Mi Lo m3 h 560 520 480 560 520 480 850 700 600 850 700 600 Indoor noise level Hi Mi Lo dB A 38 32 28 38 32 28 44 41 38 44 41 38 Model YDK24 6 YDK25 6 YDK36 6 YDK36 6 Brand WEILING WEILING WEILING WEILING I...

Страница 9: ... 450V Indoor fan motor Speed hi mi lo r min 1180 1080 800 Indoor air flow Hi Mi Lo m3 h 850 700 600 Indoor noise level Hi Mi Lo dB A 44 41 38 Model YDK53 6 Brand WEILING Input W 100 Capacitor uF 2 5uf Outdoor fan motor Speed r min 640 Outdoor air flow m3 h 2200 Outdoor noise level dB A 54 Refrigerant type R22 g 1220 Liquid side Gas side mm φ6 35 φ12 7 Max pipe length m 15 Refrigerant piping Max in...

Страница 10: ...Service manual 9 5 Refrigerant cycle diagram Ø Cooling only Ø Heat pump mode ...

Страница 11: ...lt from the continuous operation under constant air temperature conditions However excludes the initial pull down stage 6 2 Heating operation Indoor air temp DB Outdoor unit 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 ...

Страница 12: ...Service manual 12 7 Schematic diagram and Wiring diagram 7 1 Schematic diagram ...

Страница 13: ...Service manual 13 7 2 Wiring diagram 7 2 1 MSH 07CR MSH 09CR ...

Страница 14: ...Service manual 14 ...

Страница 15: ...Service manual 15 7 2 2 MSH 12CR ...

Страница 16: ...Service manual 16 7 2 3 MSH 16CR ...

Страница 17: ...Service manual 17 7 2 4 MSH 18CR ...

Страница 18: ...Service manual 18 7 2 4 MSH 07HR MSH 09HR ...

Страница 19: ...Service manual 19 7 2 5 MSH12HR ...

Страница 20: ...Service manual 20 7 2 6 MSH 16HR ...

Страница 21: ...ed according to the following specifications sheet Grade Unit 7K 9K 12K 16K 18K mm2 1 0 1 0 1 5 2 5 2 5 8 3 Pipe length and the elevation Pipe size Capacity Btu h GAS LIQUID Standard length m Max ElevationB m Max ElevationB m Additional refrigerant g m 3 8 φ 9 52 1 4 φ 6 35 5 5 10 30 7k 12K 1 2 φ 12 7 1 4 φ 6 35 5 5 10 30 1 2 φ 12 7 1 4 φ 6 35 5 8 15 30 5 8 φ 15 88 1 4 φ 6 35 5 10 20 30 18K 28K 5 ...

Страница 22: ...Service manual 22 Caution Capacity is base on standard length and maximum allowance length is base of reliability Oil trap should be install per 5 7 meters In case that more than 5m ...

Страница 23: ...heck the flare connection for gas leakage 4 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 press the valve core pin discharge for three seconds and then wait for one minute 5 Use torque wrench to tighten the service port cap to a torque of 1 8 kg m 18n m 6 Set the 3 way valve to the opened ...

Страница 24: ... charge hose with the push pin to the gas service port 4 Air purging of the charge hose 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 Immediately set the 3 way valve to the closed position Do this quickly so that the...

Страница 25: ...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 4 Check the gas leakage 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...

Страница 26: ...the service port 3 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 air conditioner is not running is higher than 0 1Mpa discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa If this is the case it will not be necessary to apply a evacuation Discharge ...

Страница 27: ...e has moved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less 3 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 after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil if the vacuum pump oil becomes dirty or depleted replenish as needle ...

Страница 28: ...he 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 wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the refrigerant to be...

Страница 29: ...C D23ºC W Pressure kg cm2 4 6 4 7 4 8 5 1 5 3 5 4 Heating mode OUTDOOR CONDITIONS Indoor Conditions Pressure 12ºC D 11ºC W 7ºC D 6ºC W 0ºC D 1ºC W 4ºC D 6ºC W 7ºC D 9ºC W 15ºC D xºC W 15ºC Pressure kg cm2 12 0 11 5 10 7 10 5 10 2 18ºC Pressure kg cm2 12 3 11 7 11 5 11 3 10 4 20ºC Pressure kg cm2 12 5 12 1 12 0 11 5 10 5 22ºC Pressure kg cm2 12 6 12 3 12 2 11 9 10 9 9 3MSH 09CR Cooling mode Outdoor...

Страница 30: ...temp Indoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D15ºC W Pressure kg cm2 4 1 4 2 4 4 4 4 4 7 4 9 24ºC D17ºC W Pressure kg cm2 4 3 4 4 4 6 4 7 5 0 5 2 27ºC D19ºC W Pressure kg cm2 4 4 4 6 4 7 4 9 5 1 5 4 32ºC D23ºC W Pressure kg cm2 4 6 4 8 4 9 5 2 5 4 5 6 Heating mode OUTDOOR CONDITIONS Indoor Conditions Pressure 12ºC D 11ºC W 7ºC D 6ºC W 0ºC D 1ºC W 4ºC D 6ºC W 7ºC D 9ºC W 15ºC ...

Страница 31: ... Pressure 12ºC D 11ºC W 7ºC D 6ºC W 0ºC D 1ºC W 4ºC D 6ºC W 7ºC D 9ºC W 15ºC D xºC W 15ºC Pressure kg cm2 14 1 13 0 10 7 10 3 10 1 18ºC Pressure kg cm2 15 3 14 1 12 3 11 4 11 1 20ºC Pressure kg cm2 15 6 14 9 12 6 12 3 11 6 22ºC Pressure kg cm2 16 6 15 6 13 1 12 6 11 9 9 9MSH 18CR Cooling mode Outdoor temperature Dry bulb temp Indoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D15ºC W Pr...

Страница 32: ... 02 1 92 1 79 1 64 1 51 1 41 Sensitive capacity kW 1 44 1 39 1 34 1 27 1 20 1 15 21ºC D 15ºC W Input kW 0 70 0 76 0 82 0 88 0 95 1 00 Total capacity kW 2 16 2 07 1 95 1 83 1 71 1 60 Sensitive capacity kW 1 53 1 48 1 43 1 38 1 34 1 32 24ºC D 17ºC W Input kW 0 70 0 77 0 84 0 90 0 97 1 03 Total capacity kW 2 32 2 27 2 15 1 98 1 81 1 65 Sensitive capacity kW 1 65 1 62 1 56 1 48 1 41 1 34 27ºC D 19ºC W...

Страница 33: ...2 16 1 98 1 82 1 70 Sensitive capacity kW 1 68 1 63 1 56 1 48 1 40 1 34 21ºC D 15ºC W Input kW 0 87 0 95 1 02 1 09 1 17 1 24 Total capacity kW 2 62 2 50 2 36 2 20 2 07 1 94 Sensitive capacity kW 1 78 1 73 1 67 1 61 1 56 1 54 24ºC D 17ºC W Input kW 0 87 0 95 1 03 1 11 1 20 1 28 Total capacity kW 2 80 2 75 2 60 2 40 2 18 1 99 Sensitive capacity kW 1 93 1 89 1 82 1 73 1 64 1 57 27ºC D 19ºC W Input kW...

Страница 34: ... 2 99 2 75 2 52 2 35 Sensitive capacity kW 2 53 2 28 2 18 2 07 1 96 1 88 21ºC D 15ºC W Input kW 1 20 1 30 1 41 1 51 1 61 1 72 Total capacity kW 3 62 3 46 3 26 3 06 2 86 2 68 Sensitive capacity kW 2 50 2 42 2 34 2 25 2 19 2 16 24ºC D 17ºC W Input kW 1 20 1 31 1 43 1 54 1 65 1 76 Total capacity kW 3 88 3 80 3 60 3 32 3 02 2 76 Sensitive capacity kW 2 71 2 65 2 55 2 42 2 30 2 19 27ºC D 19ºC W Input k...

Страница 35: ...3 99 3 67 3 36 3 14 Sensitive capacity kW 3 43 3 25 3 00 2 78 2 56 2 40 21ºC D 15ºC W Input kW 1 44 1 56 1 69 1 81 1 94 2 06 Total capacity kW 4 83 4 62 4 35 4 08 3 82 3 58 Sensitive capacity kW 3 67 3 52 3 32 3 10 2 91 2 73 24ºC D 17ºC W Input kW 1 42 1 59 1 72 1 84 1 98 2 11 Total capacity kW 5 17 5 06 4 80 4 42 4 03 3 68 Sensitive capacity kW 3 87 3 85 3 74 3 32 3 06 2 76 27ºC D 19ºC W Input kW...

Страница 36: ... 43 Total capacity kW 5 03 4 81 4 53 4 25 3 97 3 73 Sensitive capacity kW 3 47 3 37 3 25 3 13 3 04 3 00 24ºC D 17ºC W Input kW 1 70 1 86 2 02 2 17 2 33 2 50 Total capacity kW 5 38 5 28 5 00 4 61 4 20 3 83 Sensitive capacity kW 3 77 3 69 3 55 3 38 3 20 3 06 27ºC D 19ºC W Input kW 1 73 1 90 2 05 2 22 2 38 2 54 Total capacity kW 5 68 5 57 5 49 5 30 5 06 4 81 Sensitive capacity kW 3 57 3 61 3 58 3 52 ...

Страница 37: ...2A 5 2A 5 5A 5 5A 9 5A 9 5A 11 0A 11 0A 14 0A IRESTORE 4 2A 4 2A 4 5A 4 5A 8 5A 8 5A 9 5A 9 5A 12A IDEFROST 3 5A 3 5A 6 5A 7 5A TE1 28 28 34 34 TE2 32 32 37 36 TE3 30 30 33 30 TE4 26 26 22 20 TE5 4 4 4 4 2 2 3 3 3 TE6 10 10 10 10 7 7 14 14 14 TE7 60 60 62 60 TE8 53 53 56 52 TE9 50 50 50 50 ANGLCOOL 200 200 200 200 170 170 185 185 50 ANGLHEAT 0 0 10 20 ANGLOFF 124 124 124 124 124 124 120 120 0 THDE...

Страница 38: ...inates while the air conditioner is in economic operation 13 2Troubleshooting For cooling mode Failure phenomenon Operation lamp Timer lamp Indoor fan speed has been out of control for over 1 minute X Indoor room temp or evaporator sensor is open circuit or short circuit On Over current protection of the compressor occurs 4 times X EEROM error On No over zero signal r Extinguish Flash at 5Hz For h...

Страница 39: ...Service manual 46 13 3 Diagnostic chart After energizing no indicator is lighted and the air conditioner can t be operated ...

Страница 40: ...is less than 4 5V Check according to the following procedure Resetting phenomenon often occurs during operation After changing indoor PCB check if the failure realease Yes After changing indoor fan motor check if the failure realease Yes YES Yes Power supply circuit has problems Indoor PCB is defective 13 5 Operation lamp flashes and Timer lamp off 13 6Operation lamp flashes and Timer lamp on ...

Страница 41: ...es 13 8Operation lamp on and Timer lamp flashes EEROM error indoor PCB is defective 13 9Operation 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 ...

Страница 42: ...39 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 8778 32 7 2946 59 2 4468 6 25 4954 33 6 9814 60 2 3577 7 24 1932 34 6 6835 61 2 2725 8 22 5662 35 6 4002 62 2 1907 9 21 8094 36 6 1306 63 2 1124 10 20 7184 37 5 8736 64 2 0373 11 19 6891 38 5 6296 ...

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