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Service manual

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10. Electronic function

10.1 Electronic control working environment

Input voltage: 175~253V

Input power frequency:50HZ

Ambient temperature: -7

C+43

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. Its normal working amp is less than 15A

10.2 Proper symbols and their meaning

T1: Indoor ambient temperature

T2: Indoor evaporator temperature

T3: Outdoor condenser temperature.

TS: Setting temperature through the remote controller

3sec

: Self-protection amp of compressor, continue three seconds until turns off the compressor.

5MIN

: Self-protection amp of compressor, continue five minutes until turns off the compressor.

FAN

: Self-protection amp of outdoor fan/indoor fans when they change from higher wind to lower wind.

RESTORE

: Amp self-protection return value

TE1: Anti-cold wind, from Fan Off to Breeze temperature

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: Evaporator low temperature protection entering temperature

TE6: Evaporator low temperature protection restoring temperature

TE7: Evaporator high temperature protection, compressor off temperature

TE8: Evaporator high temperature protection, fan off temperature

TE9: Evaporator high temperature protection, restoring temperature

TE10: Condenser high temperature protection, compressor off temperature.

TE11: Condenser high temperature protection, restoring temperature.

TE14: The indoor restoring temperature when the compressor is off on the heating mode.

TE16: The indoor evaporator temperature after the defrost action, fan on temperature.

TC1: Outdoor condenser sensor temperature for the defrost condition 1.

TC2: Condenser sensor temperature after defrost.

TC3: Outdoor condenser sensor temperature for the defrost condition 2.

10.3 Function

Remote receiving

Testing and forced running

Position set for indoor unit wind vane

LED displaying and alarm

On or off Timer

Protection for the compressor

Содержание MSG-24CR

Страница 1: ...MSG 24CR MSG 24HR MSG 30CR MSG 30HR MSG 36CR MSG 36HR...

Страница 2: ......

Страница 3: ...8 2 Connecting the cables 24 8 3 Pipe length and the elevation 24 8 4 Air purging of the piping and indoor unit 25 8 5 Pumping down Re installation 26 8 6 Re air purging Re installation 27 8 7 Balance...

Страница 4: ...ng 43 12 1 Display board 43 12 2 Troubleshooting 44 12 3 Diagnostic chart 45 12 4 Resetting phenomenon often occurs during operation 46 12 5 Operation lamp flashes and Timer lamp off 46 12 6 Operation...

Страница 5: ...n 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 n Do not let the...

Страница 6: ...ional n 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 n Do not use the product for special purposes such as preserving foo...

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: ...Service manual 5 3 Dimension 3 1 Indoor unit Dimension Mode W H L 24K 1080 330 222 30K 1080 330 222 36K 1250 325 230...

Страница 10: ...Service manual 6 3 2 Outdoor unit Dimension Mode W H D L1 L2 L3 24K 845 695 335 560 360 735 30K 845 695 335 560 360 735 36K 895 860 302 560 360 735...

Страница 11: ...dB A 43 40 37 43 40 37 Model YDK53 6K YDK53 6K Brand Welling Welling Input W 130 130 Capacitor uF 3 5 3 5 Speed r min 800 800 m 3 h 2500 2500 dB A 56 56 g R22 1850 R22 1900 MPa 2 6 2 6 Liquid side Ga...

Страница 12: ...dB A 47 44 41 47 44 41 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 58 58 g R22 2250 R22 2450 MPa 2 6 2 6 Liquid side Gas...

Страница 13: ...1350 1200 1050 dB A 49 46 42 49 46 42 Model YDK100 6 YDK100 6 Brand Welling Welling Input W 169 169 Capacitor uF 5 5 Speed r min 900 900 m 3 h 3000 3000 dB A 59 59 g 2400 2450 MPa 2 6 2 6 Liquid side...

Страница 14: ...B A 47 44 41 47 44 41 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 58 58 g R22 2250 R22 2450 MPa 2 6 2 6 Liquid side Gas...

Страница 15: ...1350 1200 1050 dB A 49 46 42 49 46 42 Model YDK100 6 YDK100 6 Brand Welling Welling Input W 169 169 Capacitor uF 5 5 Speed r min 900 900 m3 h 3000 3000 dB A 59 59 g 2400 2450 MPa 2 6 2 6 Liquid side G...

Страница 16: ...Service manual 12 5 Refrigerant cycle diagram Cooling only Heat pump mode...

Страница 17: ...The chart is the result 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 t...

Страница 18: ...Service manual 14 However excludes the initial pull down stage...

Страница 19: ...Service manual 15 7 Schematic diagram and Wiring diagram 7 1 Schematic diagram...

Страница 20: ...Service manual 16 7 2 Wiring diagram 7 2 1 Cooling mode MSG 24CR MSG 30CR...

Страница 21: ...Service manual 17 MSG 36CR...

Страница 22: ...Service manual 18 7 2 2 Heating mode MSG 24HR MSG 30HR A1 A2...

Страница 23: ...Service manual 19 MSG 36HR A1 A2...

Страница 24: ...Service manual 20 7 2 3 Cooling mode 3 Ph MSG 30CR 3ph...

Страница 25: ...Service manual 21 MSG 36CR 3ph...

Страница 26: ...Service manual 22 7 2 4 Heating mode 3 Ph MSG 30HR 3ph 1 7 3 4 5 6 2...

Страница 27: ...Service manual 23 MSG 36HR 3ph...

Страница 28: ...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 29: ...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 30: ...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 31: ...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 32: ...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 33: ...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 34: ...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 35: ...35 5 88 5 41 5 05 4 69 15 C W Sensitive capacity kW 4 93 4 74 4 44 4 11 3 86 3 61 Input kW 2 35 2 48 2 59 2 79 3 10 3 21 24 C D Total capacity kW 7 31 6 99 6 53 6 17 5 75 5 30 17 C W Sensitive capacit...

Страница 36: ...1 5 90 5 47 15 C W Sensitive capacity kW 5 75 5 52 5 18 4 79 4 50 4 21 Input kW 2 74 2 89 3 01 3 25 3 61 3 73 24 C D Total capacity kW 8 53 8 15 7 62 7 20 6 71 6 19 17 C W Sensitive capacity kW 6 27 6...

Страница 37: ...38 6 85 15 C W Sensitive capacity kW 7 21 6 92 6 48 6 00 5 64 5 28 Input kW 3 52 3 72 3 87 4 18 4 65 4 80 24 C D Total capacity kW 10 69 10 21 9 54 9 02 8 41 7 75 17 C W Sensitive capacity kW 7 85 7 6...

Страница 38: ...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 39: ...Service manual 35 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 40: ...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 41: ...de 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 compressor in heating mode except for the defrosting mode or t...

Страница 42: ...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 43: ...indoor fan blows automatically in corresponding 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 lea...

Страница 44: ...10 12 1 The sleep function is available at cooling heating or auto mode 10 12 2 Cooling The set temperature rise 1 per hour Two hours later the set temperature will maintain as a constant and the fan...

Страница 45: ...the same after the air conditioner running under economic mode after 2 hours and during the next time the set temp do not change The total time is 7 hours after 7 hours the unit stops 10 13 Auto rest...

Страница 46: ...20 24 TE5 C 2 2 2 2 2 2 TE6 C 12 12 12 12 12 12 TE7 C 63 63 63 TE8 C 54 54 54 TE9 C 50 50 50 TE10 C 65 65 70 TE11 C 55 55 65 TE14 C 32 32 32 TE16 C 42 42 34 3Ph 380 420V Model MSG 30CR MSG 30HR MSG 36...

Страница 47: ...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 48: ...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 49: ...Service manual 45 12 3 Diagnostic chart After energizing no indicator is lighted and the air conditioner can t be operated...

Страница 50: ...s 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 mot...

Страница 51: ...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 52: ...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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