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Service manual

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12.4 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:

12.5 Operation lamp flashes and Timer lamp off.

12.6 Operation lamp flashes and Timer lamp on.

Содержание MSG-24CRN2

Страница 1: ...MSG 24CRN2 MSG 24HRN2 MSG 30CRN2 MSG 30HRN2...

Страница 2: ......

Страница 3: ...16 8 3 Pipe length and the elevation 16 8 4 Air purging of the piping and indoor unit 17 8 5 Pumping down Re installation 18 8 6 Re air purging Re installation 19 8 7 Balance refrigerant of the 2 way...

Страница 4: ...ubleshooting 35 12 3 Diagnostic chart 36 12 4 Resetting phenomenon often occurs during operation 37 12 5 Operation lamp flashes and Timer lamp off 37 12 6 Operation lamp flashes and Timer lamp on 37 1...

Страница 5: ...Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let the air...

Страница 6: ...tional Do not expose the skin directly to cool air for long periods of time Do not sit in the draft This could harm to your health Do not use the product for special purposes such as preserving foods...

Страница 7: ...r 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 after seven ho...

Страница 8: ...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 exce...

Страница 9: ...ervice manual 5 3 Dimension 3 1 Indoor unit Dimension Mode W H L 24K 1080 330 222 30K 1080 330 222 3 2 Outdoor unit Dimension Mode W H D L1 L2 L3 24K 845 695 335 560 360 735 30K 845 695 335 560 360 73...

Страница 10: ...850 1050 950 850 dB A 43 40 37 43 40 37 Model YDK53 6K YDK53 6K Brand Welling Welling Input W 140 140 Capacitor uF 3 5 3 5 Speed r min 800 800 m 3 h 2500 2500 dB A 55 55 g R22 1850 R22 1900 MPa 2 8 2...

Страница 11: ...dB A 45 42 39 45 42 39 Model YDK100 6D YDK100 6D Brand Welling Welling Input W 169 169 Capacitor uF 5 5 Speed r min 900 900 m 3 h 2600 2600 dB A 57 57 g 1800 1850 MPa 2 8 2 8 Liquid side Gas side mm 9...

Страница 12: ...50 950 dB A 45 42 39 45 42 39 Model YDK100 6D YDK100 6D Brand Welling Welling Input W 169 169 Capacitor uF 5 5 Speed r min 900 900 m 3 h 2600 2600 dB A 57 57 g R22 2250 R22 2450 MPa 2 6 2 6 Liquid sid...

Страница 13: ...Service manual 9 5 Refrigerant cycle diagram Cooling only Heat pump mode...

Страница 14: ...t 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...

Страница 15: ...Service manual 11 7 Schematic diagram and Wiring diagram 7 1 Schematic diagram...

Страница 16: ...Service manual 12 7 2 Wiring diagram 7 2 1 Cooling mode MSG 24CR MSG 30CR...

Страница 17: ...Service manual 13 7 2 2 Heating mode MSG 24HR MSG 30HR A1 A2...

Страница 18: ...Service manual 14 7 2 3 Cooling mode 3 Ph MSG 30CR 3ph...

Страница 19: ...Service manual 15 7 2 4 Heating mode 3 Ph MSG 30HR 3ph 1 7 3 4 5 6 2...

Страница 20: ...5 2 5 Grade 8 3 Pipe length and the elevation Standard length Max Max Additional m Elevation Elevation refrigerant Btu h GAS LIQUID B m A m g m 3 8 9 52 1 4 6 35 5 5 10 30 1 2 12 7 1 4 6 35 5 5 10 30...

Страница 21: ...eck 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 p...

Страница 22: ...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...

Страница 23: ...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 r...

Страница 24: ...he 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...

Страница 25: ...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...

Страница 26: ...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 27: ...6 09 5 63 5 18 4 85 4 50 15 C W Sensitive capacity kW 4 73 4 54 4 25 3 94 3 70 3 46 Input kW 2 27 2 39 2 49 2 69 2 99 3 09 24 C D Total capacity kW 7 01 6 70 6 26 5 92 5 52 5 08 17 C W Sensitive capac...

Страница 28: ...08 5 69 5 28 15 C W Sensitive capacity kW 5 55 5 33 4 99 4 62 4 34 4 06 Input kW 2 76 2 91 3 04 3 28 3 64 3 76 24 C D Total capacity kW 8 23 7 86 7 35 6 94 6 47 5 97 17 C W Sensitive capacity kW 6 05...

Страница 29: ...ature TE2 Anti cold wind from Breeze to Setting Fan Speed temperature TE3 Anti cold wind from Setting Fan Speed to Breeze temperature TE4 Anti cold wind from Breeze to Fan Off temperature TE5 Evaporat...

Страница 30: ...Service manual 26 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...

Страница 31: ...normal operation automatically 10 4 4 Cross Zero signal error warning If there is no Cross Zero signals in 4 minutes the unit stops and LED displays failure information and can t returns to normal ope...

Страница 32: ...compressor if the compressor changed into non heating mode or turned off 4 way valve doesn t delay in dehumidifying mode 10 8 2 Generally the outdoor fan is turned off with the on off action of compre...

Страница 33: ...7 The louver opens to Standard Angle ANGLHEAT when power is on for the first time 10 9 Defrosting mode available for heating mode 10 9 1 Defrosting condition Defrost starts when either of the followin...

Страница 34: ...onding selected mode 10 10 3 The motion of indoor fan s blade should accord with the selected operation mode 10 10 4 One mode should be carried out for at least 15 minutes once selected If the compres...

Страница 35: ...t low speed 10 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 take...

Страница 36: ...Service manual 32 In case of a sudden power failure this function automatically sets the unit to previous settings before the power failure when power returns...

Страница 37: ...TE2 C 32 32 TE3 C 30 30 TE4 C 20 20 TE5 C 2 2 2 2 TE6 C 12 12 12 12 TE7 C 63 63 TE8 C 54 54 TE9 C 50 50 TE10 C 65 65 TE11 C 55 55 TE14 C 32 32 TE16 C 42 42 3Ph 380 420V Model MSG 30CR MSG 30HR I3SEC...

Страница 38: ...icator illuminates then TIMER is set ON PRE DEF indicator For cooling heating mode only The air conditioner starts defrosting automatically if outdoor unit frosts in heating operating At this time PRE...

Страница 39: ...or occurs 4 times X EEROM error On No over zero signal r Extinguish Flash at 5Hz For heat pump mode Failure phenomenon Operation lamp Timer lamp Defrosting lamp Over current protection of the compress...

Страница 40: ...Service manual 36 12 3 Diagnostic chart After energizing no indicator is lighted and the air conditioner can t be operated...

Страница 41: ...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 12 5 Operation lamp...

Страница 42: ...12 8 Operation lamp on and Timer lamp flashes EEROM error indoor PCB is defective 12 9 Operation lamp flashes Timer lamp flashes This is alarm signal when the main chip can t detect over zero signal...

Страница 43: ...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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