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13.4.22 F95 (Cooling High Pressure Abnormality)

Malfunction Decision Conditions

During operation of cooling, when outdoor unit heat exchanger high temperature data (61°C) is detected by the
outdoor pipe temperature sensor.

Malfunction Caused



Outdoor pipe temperature rise due to short circuit of hot discharge air flow.



Outdoor pipe temperature rise due to defective of outdoor fan motor.



Outdoor pipe temperature rise due to defective outdoor pipe temperature sensor.



Outdoor pipe temperature rise due to defective outdoor unit PCB.

Troubleshooting

When F95 indication happens.

For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.

YES

Check the outdoor unit installation
condition (during cooling or soft-dry
operation).

Is there any improper heat radiation?

Is outdoor fan motor operating?

Check the outdoor pipe temperature
sensor.

Does it conform to the sensor
characteristic charts?

Reinstall the outdoor unit.

Replace the outdoor fan motor.

Replace compressor.

Replace outdoor unit PCB.

Remove the obstacle(s).
Clean the outdoor heat exchanger.

Caution

Содержание CS-MPS9SKH

Страница 1: ...cians Any attempt to service or repair the products dealt with in this service information by anyone else could result in serious injury or death PRECAUTION OF LOW TEMPERATURE In order to avoid frostb...

Страница 2: ...n Instruction 33 10 1 Select the Best Location 33 10 2 Indoor Unit 34 11 Operation Control 38 11 1 Basic Function 38 11 2 Indoor Fan Motor Operation 39 11 3 Airflow Direction 39 11 4 Timer Control 40...

Страница 3: ...cause electrical shock and fire in case equipment breakdown or insulation breakdown 10 Do not use joint cable for indoor outdoor connection cable Use the specified indoor outdoor connection cable ref...

Страница 4: ...e room and damage the furniture 3 Tighten the flare nut with torque wrench according to specified method If the flare nut is over tightened after a long period the flare may break and cause refrigeran...

Страница 5: ...i m 3 min ft 3 m 10 10 355 10 90 385 Dimension Height I D mm inch 290 11 7 16 290 11 7 16 Width I D mm inch 870 34 9 32 870 34 9 32 Depth I D mm inch 214 8 7 16 214 8 7 16 Weight Net I D kg lb 9 20 9...

Страница 6: ...ft 3 m 10 10 355 10 90 385 Dimension Height I D mm inch 290 11 7 16 290 11 7 16 Width I D mm inch 870 34 9 32 870 34 9 32 Depth I D mm inch 214 8 7 16 214 8 7 16 Weight Net I D kg lb 9 20 9 20 Piping...

Страница 7: ...min ft 3 m 11 20 395 17 08 603 Dimension Height I D mm inch 290 11 7 16 290 11 7 16 Width I D mm inch 870 34 9 32 1070 42 5 32 Depth I D mm inch 214 8 7 16 240 9 15 32 Weight Net I D kg lb 9 20 12 26...

Страница 8: ...ft 3 m 10 10 355 10 90 385 Dimension Height I D mm inch 290 11 7 16 290 11 7 16 Width I D mm inch 870 34 9 32 870 34 9 32 Depth I D mm inch 214 8 7 16 214 8 7 16 Weight Net I D kg lb 9 20 9 20 Piping...

Страница 9: ...min ft 3 m 11 20 395 17 08 603 Dimension Height I D mm inch 290 11 7 16 290 11 7 16 Width I D mm inch 870 34 9 32 1070 42 5 32 Depth I D mm inch 214 8 7 16 240 9 15 32 Weight Net I D kg lb 9 20 12 26...

Страница 10: ...n Height I D mm inch 290 11 7 16 Width I D mm inch 1070 42 5 32 Depth I D mm inch 240 9 15 32 Weight Net I D kg lb 12 26 Piping Pipe Diameter Liquid Gas mm inch 6 35 1 4 12 70 1 2 Drain Hose Inner Dia...

Страница 11: ...ft 3 m 10 10 355 10 90 385 Dimension Height I D mm inch 290 11 7 16 290 11 7 16 Width I D mm inch 870 34 9 32 870 34 9 32 Depth I D mm inch 214 8 7 16 214 8 7 16 Weight Net I D kg lb 9 20 9 20 Piping...

Страница 12: ...min ft 3 m 11 20 395 17 08 603 Dimension Height I D mm inch 290 11 7 16 290 11 7 16 Width I D mm inch 870 34 9 32 1070 42 5 32 Depth I D mm inch 214 8 7 16 240 9 15 32 Weight Net I D kg lb 9 20 12 26...

Страница 13: ...n ft 3 m 10 10 355 10 90 385 Dimension Height I D mm inch 290 11 7 16 290 11 7 16 Width I D mm inch 870 34 9 32 870 34 9 32 Depth I D mm inch 214 8 7 16 214 8 7 16 Weight Net I D kg lb 9 20 9 20 Pipin...

Страница 14: ...min ft 3 m 11 20 395 17 08 603 Dimension Height I D mm inch 290 11 7 16 290 11 7 16 Width I D mm inch 870 34 9 32 1070 42 5 32 Depth I D mm inch 214 8 7 16 240 9 15 32 Weight Net I D kg lb 9 20 12 26...

Страница 15: ...3 min ft 3 m 18 50 655 20 07 709 Dimension Height I D mm inch 290 11 7 16 290 11 7 16 Width I D mm inch 1070 42 5 32 1070 42 5 32 Depth I D mm inch 240 9 15 32 240 9 15 32 Weight Net I D kg lb 12 26 1...

Страница 16: ...g m 15 20 20 20 20 Note Available Indoor Unit CS MPS9 12SKH Outdoor Unit CU 2S18SKH Indoor unit capacity Cooling Cooling Capacity kW Input Power kW Current 50Hz 220V 240V A MOISTURE REMOVAL VOLUME l...

Страница 17: ...4 0 7 50 2 8 8 0 2170 590 2820 10 7 9 8 1 5 1 5 1 5 4 0 4 0 5 0 7 50 2 8 8 0 2070 540 2650 10 2 9 4 1 5 1 5 1 7 Indoor Unit CS MPS9 12 15 18 24SKH Outdoor Unit CU 3S28SBH Indoor unit capacity Cooling...

Страница 18: ...it CU 4S27SBH Indoor unit capacity Cooling Cooling Capacity kW Input Power W Current 50Hz 220V 240V A MOISTURE REMOVAL VOLUME l h Total min max Rating min max 2 Room 2 8 2 8 5 60 1 7 6 4 1750 420 2600...

Страница 19: ...5 0 5 0 10 00 2 5 10 4 3610 300 4000 2 77 D 1805 17 4 16 0 2 7 2 7 5 0 6 0 10 00 2 5 10 4 3610 300 4000 2 77 D 1805 17 4 16 0 2 5 2 9 5 0 7 0 10 00 2 5 10 4 3470 300 3850 2 88 C 1735 16 7 15 3 2 4 3 2...

Страница 20: ...9 1 4 1 4 1 4 2 2 2 8 2 8 2 8 6 0 10 00 2 9 11 0 2930 470 3690 3 41 A 1465 14 1 12 9 1 3 1 3 1 3 2 4 2 8 2 8 2 8 7 0 10 00 2 9 11 0 2930 500 3610 3 41 A 1465 14 1 12 9 1 2 1 2 1 2 2 5 2 8 2 8 3 2 3 2...

Страница 21: ...A 1430 13 8 12 6 1 3 1 3 1 5 2 1 3 2 3 2 4 0 7 0 10 00 2 9 11 2 2860 550 3610 3 50 A 1430 13 8 12 6 1 2 1 2 1 5 2 3 3 2 3 2 5 0 5 0 10 00 2 9 11 2 2800 600 3540 3 57 A 1400 13 5 12 4 1 3 1 3 1 7 1 7...

Страница 22: ...F ON button Use when remote control is misplaced or a malfunction occurs Anti bacterial filter POWER Green TIMER Orange Indicator Air inlet rear Air inlet side Air outlet FAN SPEED AIR SWING MODE TEMP...

Страница 23: ...E L O N O F F 1 3 CH EC K 214 290 61 1 45 214 1 2 1 2 870 115 41 61 360 Liquid side Gas side 125 60 60 Side View Side View Top View Front View Bottom View Rear View Air intake direction Air outlet di...

Страница 24: ...N C E L O N O F F 1 3 CHECK 240 Top View Side View Side View Air intake direction Front View 1 2 290 61 1 45 Right piping hole 47 22 120 Remote Control 1 2 1070 Air outlet direction Left piping hole 1...

Страница 25: ...25 5 Refrigeration Cycle Diagram COOLING INDOOR INTAKE TEMP SENSOR PIPE TEMP SENSOR LIQUID SIDE 2 WAY VALVE 3 WAY VALVE GAS SIDE HEAT EXCHANGER EVAPORATOR...

Страница 26: ...Diagram 6 1 CS MPS9SKH CS MPS12SKH CS MPS15SKH 6 2 CS MPS18SKH CS MPS24SKH CS MPS28SKH 1 2 3 SSR301 C330 THERMAL FUSE FUSE CR303 L301 C FM FAN MOTOR FM SC INDOOR UNIT 1 2 3 THERMAL FUSE FUSE FM INDOO...

Страница 27: ...W 2 3 BL EVAPORATOR AC303 WHT AC306 BLK AC304 RED G301 GRN FUSE301 T3 15A L250V NOISE FILTER CIRCUIT TEMP FUSE 102 C 3A TO OUTDOOR UNIT TERMINAL BOARD R Y G G ELECTRONIC CONTROLLER MAIN SUCTION TEMP...

Страница 28: ...IRCUIT TEMP FUSE 102 C 3A TO OUTDOOR UNIT TERMINAL BOARD R Y G G ELECTRONIC CONTROLLER MAIN SUCTION TEMP SENSOR THERMISTOR PIPING TEMP SENSOR 1 THERMISTOR ELECTRONIC CONTROLLER DISPLAY RECEIVER CN DIS...

Страница 29: ...ILTER CIRCUIT TEMP FUSE 102 C 3A TO OUTDOOR UNIT TERMINAL BOARD R Y G G ELECTRONIC CONTROLLER MAIN SUCTION TEMP SENSOR THERMISTOR PIPING TEMP SENSOR 1 THERMISTOR ELECTRONIC CONTROLLER DISPLAY RECEIVER...

Страница 30: ...R DISPLAY RECEIVER 5 1 CN DISP WHT LED202 R202 LED201 R201 3 5 4 2 1 GND GND GND Vcc Vout IC201 5V R209 C202 C201 GND A 0 10 10 10 20 30 40 50 0 20 30 40 50 60 70 Temperature C Resistance K Sensor The...

Страница 31: ...t Board 9 1 Indoor Unit 9 1 1 Main Printed Circuit Board CS MPS9SKH CS MPS12SKH CS MPS15SKH 9 1 1 1 CN PCFM RY PWR AC303 WHT SW01 CN FB CN RMT CN CNT CN STM1 CN DISP CN TH HAJEM A JP1 Random Auto Rest...

Страница 32: ...MPS18SKH CS MPS24SKH CS MPS28SKH 9 1 1 2 9 1 2 Indicator Receiver Printed Circuit Board SW01 CN FM CN RMT CN CNT CN STM1 CN DISP CN TH HAJEM A JP1 Random Auto Restart Enable Disable RY PWR AC303 WHT C...

Страница 33: ...Vinyl tape Remote control holder xing screws 6 Remote control holder 5 Remote control 3 This illustration is for explanation purposes only The indoor unit will actually face a different way Respective...

Страница 34: ...e extended line is the center of the hole Another method is by putting measuring tape at position as shown in the diagram above The hole center is obtained by measuring the distance namely 128 mm for...

Страница 35: ...ase refer to Insulation of piping connection column as mentioned in indoor outdoor unit installation Install the Indoor Unit Secure the Indoor Unit Insulate and finish the piping Step 1 Step 2 Step 3...

Страница 36: ...ards Drain hose Connection cable PVC tube for drain hose Indoor unit 72 mm Piping Cable Apply putty or caulking material to seal the wall opening Connection cable Piping More than 470 mm More than 115...

Страница 37: ...Operate air conditioner at cooling mode for 10 15 minutes 2 After 10 15 minutes of pre operation close 2 way valve After 3 minutes close 3 way valve 3 Take out air conditioner unit 4 Install New Refr...

Страница 38: ...2 Cooling Operation Thermostat control 11 1 2 1 Compressor is OFF when intake Air Temperature Internal Setting Temperature 0 5 C Compressor is ON after waiting for 3 minutes if the Intake Temperature...

Страница 39: ...cted by vertical vanes Control of airflow direction can be automatic angles of direction is determined by operation mode heat exchanger temperature and intake air temperature and manual angles of dire...

Страница 40: ...n the ON Timer or OFF Timer setting will not be cancelled 2 To cancel the previous timer setting press CANCEL button 3 To activate the previous timer setting press SET button 4 If main power supply is...

Страница 41: ...selected The indoor unit will only operate when received signal with same transmission code from remote control This could prevent signal interference when there are 2 or more units installed nearby...

Страница 42: ...on unit a beep sound is heard as confirmation of transmission code change 12 2 2 RESET RC Button To clear and restore the remote control setting to factory default o Press once to clear the memory 12...

Страница 43: ...MPa kg cm 2 G Outlet air Temperature C Cooling Mode 0 9 1 2 9 12 12 16 Condition Indoor fan speed High Outdoor temperature 35 C at cooling mode Compressor operate at rated frequency Different in the i...

Страница 44: ...w Pressure High Pressure Electric current during operation Insufficient refrigerant gas leakage Clogged capillary tube or strainer Short circuit in the indoor unit Heat radiation deficiency of the out...

Страница 45: ...e remote control 3 will be displayed on the remote control display Note Display only for No signal transmission no receiving sound and no Power LED blinking 4 Press the TIMER or button on the remote c...

Страница 46: ...temperature sensor open or short circuit Outdoor air temperature sensor lead wire and connector H28 Outdoor heat exchanger temperature sensor abnormality Continuous for 5s Outdoor heat exchanger tempe...

Страница 47: ...inutes Refrigeration cycle abnormal Insufficient refrigerant or valve close F93 Compressor abnormal revolution 4 times happen within 20 minutes Compressor abnormal revolution Power transistor module f...

Страница 48: ...door units Indoor unit outdoor unit signal transmission error due to disturbed power supply waveform Troubleshooting Check the indoor outdoor units connection wires Is there any wiring error Disconnec...

Страница 49: ...ndoor and outdoor units Troubleshooting Check the indoor and outdoor unit connection wires Check indoor and outdoor units model number Is indoor unit and outdoor unit model numbers matched Check the s...

Страница 50: ...t breakdown always switch off the power before remove and connect the component Connector poor contact Correct the connection Defect in indoor unit PCB Replace the indoor unit PCB Defect in indoor int...

Страница 51: ...he connection Defect in outdoor compressor temperature sensor Replace the outdoor compressor temperature sensor Defect in outdoor unit PCB Replace the outdoor unit PCB Turn off the power Check the con...

Страница 52: ...roubleshooting For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Check the functionality of current transformer CT Is the CT open...

Страница 53: ...en abnormality indication starts again Replace fan motor Does fan rotate smoothly Turn power supply on and operate fan Does it rotate Stop fan motor Check the rotation feedback output from fan motor R...

Страница 54: ...nit PCB Replace the outdoor unit PCB Defect in outdoor intake air temperature sensor Replace the outdoor intake air temperature sensor NO NO YES YES 0 10 10 10 20 30 40 50 0 20 30 40 50 60 70 Temperat...

Страница 55: ...ormality indication starts again For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Turn off the power Check the connector connect...

Страница 56: ...ason and to prevent component breakdown always switch off the power before remove and connect the component No No YES YES Check the outdoor heat exchanger temperature sensor Plug out connector from th...

Страница 57: ...and connect the component Is the measured resistance of the outdoor discharge pipe temperature sensor matches the value specified in its characteristic chart Is the connector connection normal YES YE...

Страница 58: ...H33 occurs intermittently during operation unit has operated normally before H33 occurs right after servicing and has never occur before Has the PCB indoor or outdoor being replaced Confirm the repla...

Страница 59: ...connect the component Is the measured resistance of the outdoor discharge pipe temperature sensor matches the value specified in its characteristic chart Is the connector connection normal YES YES Ch...

Страница 60: ...t the component Is the measured resistance of the outdoor discharge pipe temperature sensor matches the value specified in its characteristic chart Is the connector connection normal YES YES Check the...

Страница 61: ...off power supply and rotate fan by hand When abnormality indication starts again Replace fan motor Does fan rotate smoothly Main outdoor PCB transistor faulty Fan motor faulty Turn off power supply a...

Страница 62: ...PCB Troubleshooting Check the air passage When abnormality indication starts again For safety reason and to prevent component breakdown always switch off the power before remove and connect the compo...

Страница 63: ...ty indication starts again Check the air passage Is there any short circuit Is the air filter dirty Is the indoor unit heat exchanger dirty Does it conform to the sensor characteristic chart Check the...

Страница 64: ...omponent breakdown always switch off the power before remove and connect the component Replace the indoor main PCB Correct loose or broken cable connector Replace the indoor pipe temperature sensor YE...

Страница 65: ...mistor matches the value specified in its characteristic chart The 4 way valve may have been damaged or wrongly connected between discharge and suction tube Problem occurs in heating mode only Is 4 wa...

Страница 66: ...ed Operate the system Verify PFC abnormality by measuring DC voltage between P and N terminal at the outdoor unit PCB Is the DC voltage between P and N terminal normal between 285 315 Vdc Are the comp...

Страница 67: ...ure sensors When F91 indication happens For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Replace the indoor intake air or pipe t...

Страница 68: ...it Malfunction Caused Compressor terminal disconnect Outdoor PCB malfunction Troubleshooting When F93 indication happens For safety reason and to prevent component breakdown always switch off the powe...

Страница 69: ...r Outdoor pipe temperature rise due to defective outdoor unit PCB Troubleshooting When F95 indication happens For safety reason and to prevent component breakdown always switch off the power before re...

Страница 70: ...IPM IPM overheats due to defective IPM temperature sensor Troubleshooting When F96 indication happens For safety reason and to prevent component breakdown always switch off the power before remove an...

Страница 71: ...f the power before remove and connect the component Replace the compressor tank temperature sensor Repair the pipe flare or union nuts Reclaim and recharge refrigerant Open the 2 3 way valve Replace t...

Страница 72: ...ytic capacitor Over current due to excessive refrigerant Troubleshooting For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Replac...

Страница 73: ...on the board of the relay connector Tester s negative terminal Power transistor UVW Power transistor UVW Tester s positive terminal UVW Power transistor UVW Power transistor Normal resistance Several...

Страница 74: ...1 CS MPS9SKH CS MPS12SKH CS MPS15SKH 14 1 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal Procedures To Remove Front Grille 14 1 1 1 Figure 1 To Remove Electronic Controlle...

Страница 75: ...from the electronic controller Then pull out main controller gently 6 Detach the CN DISP connector then remove the indicator complete 5 Detach the Earth wire CN PCFM RY PWR connector Black and Brown A...

Страница 76: ...ator Holdfast 15 Remove the bearing by pulling it out gently 18 Fan motor can be removed after the removal of cross flow fan Reminder To reinstall the fan motor adjust the fan motor connector to 45 to...

Страница 77: ...77 Figure 10 Reminder To reinstall the cross flow fan ensure cross flow fan is in line as shown in figure 10 Cross Flow Fan...

Страница 78: ...ps and 3 screws at the bottom of the discharge vane and 1 screw at the front grille 1 Lift to open the horizontal vane and intake grille gently 3 Hold both sides of the front grille and remove it by p...

Страница 79: ...1 5 Figure 7 10 Pull out to remove the drain hose behind the discharge grille from the discharge grille outlet 11 Then pull the discharge grille downward gently to dismantle it Discharge Grille 12 Rem...

Страница 80: ...ow fan Reminder To reinstall the fan motor please adjust the connector to 45 with fan motor before fixing control board 17 Remove the cross flow fan from the unit by pulling it to the left and downwar...

Страница 81: ...he above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts CWH55025J CWH55051J I I I I I I I I I I O I 12 24 15 36 33...

Страница 82: ...SIS 1 CWD933233 28 FULCRUM 1 CWH621131 29 VERTICAL VANE 8 CWE241374 30 CONNECTING BAR 2 CWE261251 33 AIR SWING MOTOR 1 CWA981264 O 34 CAP DRAIN TRAY 1 CWH521259 35 HORIZONTAL VANE COMPLETE 1 CWE24C138...

Страница 83: ...purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts CWH55025J CWH55051J I I I I O I I I I I I I 35 30 31 29 34 25 13 16 1 40 3 4 5 8 37 38 39 27...

Страница 84: ...CWH621138 29 VERTICAL VANE 11 CWE241374 30 CONNECTING BAR 1 CWE261260 31 CONNECTING BAR 1 CWE261263 33 AIR SWING MOTOR 1 CWA981241 O 34 CAP DRAIN TRAY 1 CWH521259 35 HORIZONTAL VANE COMPLETE 1 CWE24C...

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