Panasonic CS-MS9SD3H Service Manual Download

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13.5.2 H12 (Indoor/Outdoor Capacity Rank Mismatched)

Malfunction Decision Conditions



During startup, error code appears when different types of indoor and outdoor units are interconnected.

Malfunction Caused



Wrong models interconnected.



Wrong indoor unit or outdoor unit PCBs mounted.



Indoor unit or outdoor unit PCBs defective.



Indoor-outdoor unit signal transmission error due to wrong wiring.



Indoor-outdoor unit signal transmission error due to breaking of wire 3 in the connection wires between the indoor

and outdoor units.

Troubleshooting

When abnormality indication starts again

Is there any wiring error?

YES

Matched compatibility?

Correct the indoor-outdoor unit connection wires

Check the indoor and outdoor unit connection wires

Check the spare part numbers of the indoor and outdoor unit
PCBs and compare with their Part Lists

Change for the specified indoor or outdoor unit
PCB

Replace the indoor and outdoor unit PCBs

YES

Is indoor unit and outdoor unit model numbers matched?

Match the compatible model(s)

YES

Check indoor and outdoor units model number

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

Caution

Summary of Contents for CS-MS9SD3H

Page 1: ...al dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the products...

Page 2: ...11 3 Powerful Mode Operation 35 11 4 Timer Control 35 11 5 Auto Restart Control 36 11 6 Indication Panel 36 11 7 Drain Pump Control 36 11 8 Pump Down Operation By CN S 36 12 Servicing Mode 37 12 1 TE...

Page 3: ...of air etc will cause abnormal high pressure in refrigeration cycle and result in explosion injury etc 8 Do not add or replace refrigerant other than specified type It may cause product damage burst a...

Page 4: ...rigerant gas leakage during operation It may cause toxic gas when the refrigerant contacts with fire 23 This equipment must be properly earthed Earth line must not be connected to gas pipe water pipe...

Page 5: ...0 SHi rpm 1380 1430 Moisture Removal L h 1 6 1 8 Indoor Airflow QLo m3 min ft3 min 7 60 270 7 60 270 Lo m3 min ft3 min 8 10 290 8 10 290 Me m3 min ft3 min 10 80 380 10 80 380 Hi m3 min ft3 min 13 20 4...

Page 6: ...Maximum C 32 23 32 23 Minimum C 16 11 16 11 1 Cooling capacities are based on indoor temperature of 27 C DRY BULB 80 6 F DRY BULB 19 0 C WET BULB 66 F WET BULB and outdoor air temperature of 35 C DRY...

Page 7: ...rpm 1530 1530 Moisture Removal L h 2 7 3 3 Indoor Airflow QLo m3 min ft3 min 8 80 310 8 80 310 Lo m3 min ft3 min 9 40 330 9 40 330 Me m3 min ft3 min 12 60 450 12 60 450 Hi m3 min ft3 min 15 50 545 15...

Page 8: ...Maximum C 32 23 32 23 Minimum C 16 11 16 11 1 Cooling capacities are based on indoor temperature of 27 C DRY BULB 80 6 F DRY BULB 19 0 C WET BULB 66 F WET BULB and outdoor air temperature of 35 C DRY...

Page 9: ...Example The indoor units combination below is possible to connect to CU 3S27SBH Total nominal capacity of indoor units is between 5 6 kW to 13 2 kW 1 Two CS MS9SD3H only Total nominal cooling capacity...

Page 10: ...0 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 MS9 12 18 24SD3H Outdoor Unit CU 3S28SBH Indoor unit capacity Cooling...

Page 11: ...t 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...

Page 12: ...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 6...

Page 13: ...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...

Page 14: ...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...

Page 15: ...ge Orange Orange Remote control receiver 3 2 Remote Control AIR CONDITIONER OFF ON ON OFF SET CANCEL 1 2 3 TIMER MODE TEMP POWERFUL QUIET FAN SPEED CLOCK SET CHECK RESET AC RC MODE Remote control disp...

Page 16: ...INLET 23 132 220 220 132 14 14 23 155 120 23 40 23 200 150 DRAIN PORT UPPER LOWER 120 33 80 143 44 238 81 WATER INLET 28 84 30 10 2 3 1 HOLE 87 64 Remote Control Holder 59 22 144 5 Remote Control AIR...

Page 17: ...17 5 Refrigeration Cycle Diagram INDOOR INTAKE TEMP SENSOR PIPE INLET TEMP SENSOR 2 PIPE TEMP SENSOR 1 LIQUID SIDE 2 WAY VALVE 3 WAY VALVE GAS SIDE HEAT EXCHANGER EVAPORATOR COOLING...

Page 18: ...18 6 Block Diagram FUSE FM DM SC Indoor Unit 1 2 3...

Page 19: ...BL BL t INDOOR PIPE TEMPERATURE SENSOR 2 INDOOR PIPE TEMPERATURE SENSOR 1 INDOOR AIR TEMPERATURE SENSOR ELECTRONIC CONTROLLER DISPLAY RECEIVER M MOTOR Y B W BL BL BL BR BL BL Y BR GR R O W V BL GR BL...

Page 20: ...1k KB C38 0 01u R56 10k 1 3 FLOAT SWITCH BL BL KB C35 1000p 50V R65 10k 5V R66 1k 5 1 10W 1 5 CN CNT WHITE L5 L6 R82 10k R90 10k KB C66 1000p 50V KB C52 1000p 50V C57 C56 5V 5V 12V 5V KB C51 1u 10V K...

Page 21: ...21 9 Printed Circuit Board 9 1 Indoor Unit 9 1 1 Main Printed Circuit Board CN T2 CN FM CN TH CN T1 CN AC CN DRMTR1 CN DISP CN FSW...

Page 22: ...r refrigerant piping insulation foamed polyethylene with a thickness of 8 mm or more For drain piping insulation foamed polyethylene with a thickness of 10 mm or more Indoor outdoor connecting cable 4...

Page 23: ...pests from damaging the cables e g mice biting the connection cable 4 Finish by sealing the sleeve with putty or caulking compound at the final stage 15 mm Putty or caulking compound 70 mm through ho...

Page 24: ...nent box Refrigerant tubing Min 650 or more Min 200 or more Min 200 or more Min 100 mm or more for bottom air intake Ceiling Min 20 or more Min 20 or more H Min 240 200 H dimension means the minimum h...

Page 25: ...450x450 Field supply 14 In Case of Bottom Intake 1 Remove the frame filter assy as shown in diagram 1 2 Remove cover plate as shown in diagram 1 3 Fix frame filter assy as shown in diagram 2 4 Fix co...

Page 26: ...onsult your construction or interior contractor for details on finishing the ceiling opening Installing an Intake and Discharge Duct Type Ensure the range of unit external static pressure is not excee...

Page 27: ...electromagnetic noise Remove the bottom case Insert the driver and slightly turn Bottom case Flat blade screwdriver Attention Mounting the bottom case 1 Tighten the screws securely until the screw hea...

Page 28: ...onnector Control box Mount to the wall EXPOSED TYPE Clamper supplied Pass through the hole Preparation Make 2 holes for screws using a driver Mount the top case Align the claws of the top case and the...

Page 29: ...se and then align the claws of the bottom case Mount the bottom case to the wall Pass the wire through the hole in the centre of the bottom case Connect the remote control wiring Avoid the wire being...

Page 30: ...from being extended smoothly the drain piping can be raised outside of the main unit as shown in the illustration below Drain hose insulation Drain hose Hard PVC pipe VP20 Hose band 13 Unit drain por...

Page 31: ...o Ensure that the terminal numbers on the indoor unit are connected to the same terminal numbers on the outdoor unit by the right coloured wires as shown in the diagram o Earth lead wire should be lon...

Page 32: ...ble 10 1 8 Note Enabling long range remote control To maintain EMC emission limits cabling interconnecting the HA terminal and subsequent opto coupler must be no more than 1 9 m length Loop four turns...

Page 33: ...and the operation environment The final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit Remote Control S...

Page 34: ...is decided o If 2 C indoor intake temperature remote control setting temperature 3 C maintain with previous mode Maintain Cool Dry 2 1 0 1 2 3 4 5 6 11 1 5 Indoor Fan Motor Operation A Basic Rotation...

Page 35: ...essor frequency reduced 11 3 Powerful Mode Operation When the powerful mode is selected the internal setting temperature will shift lower up to 2 C for Cooling Soft Dry than remote control setting tem...

Page 36: ...nks there is an abnormality operation occurs 11 7 Drain Pump Control This unit has built in with drain pump Control content During COOL DRY mode o During COOL DRY mode drain pump starts 10 seconds aft...

Page 37: ...N FOR PUMP DOWN SERVICING PURPOSE The Test Run operation will be activated by short circuiting CN S Pin 1 2 at outdoor unit PCB after power supplied to outdoor unit terminal 1 and 2 The unit forced to...

Page 38: ...nutes after an operation is started at cooling mode Less than 8 C at the cooling mode Higher than specified Lower than specified Cooling Mode High Low Low Value of electric current during operation Ga...

Page 39: ...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 outd...

Page 40: ...wer on 2 Press the CHECK button on the 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 Pres...

Page 41: ...emperature sensor defective or disconnected H34 Outdoor heat sink temperature sensor abnormality Continue for 2 sec Outdoor heat sink temperature sensor defective or disconnected H35 Indoor drain wate...

Page 42: ...on 7 times occurrence continuously Outdoor PCB IPM Power transistor Compressor Note Frequency measured and fan speed fixed For cooling only model it is the indication when indoor heat exchanger sensor...

Page 43: ...age at terminal 2 3 communication terminals of outdoor unit terminal board Is the measured DC voltage fluctuate between 20 70Vdc Measure the AC voltage at terminal 1 2 of indoor unit terminal board Is...

Page 44: ...indoor and outdoor units Troubleshooting When abnormality indication starts again Is there any wiring error YES Matched compatibility Correct the indoor outdoor unit connection wires Check the indoor...

Page 45: ...e indoor intake air temperature sensor Plug out connector from the indoor unit PCB Measure the resistance of the indoor intake air temperature sensor Is the measured resistance of the indoor intake ai...

Page 46: ...emperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor compressor temperature sensor Is the measured resistance of the outdoor compressor temperature sens...

Page 47: ...Graph In forced cooling check suction ressure Running current and suction pressure is Compressor Lack Compression Replace Compressor Check replace defected CT Running current is much too low and Check...

Page 48: ...off power supply and rotate fan by hand Replace fan motor Does fan rotate smoothly Turn power supply on and operate fan Replace indoor PCB Replace fan motor Turn off power supply and disconnect fan mo...

Page 49: ...or Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor intake air temperature sensor Defect in outdoor intake air temperature sensor Replace the outdoor intake air tempe...

Page 50: ...sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor intake air temperature sensor Is the measured resistance of the outdoor intake air temperature sensor matches...

Page 51: ...ured resistance of the outdoor air temperature sensor matches the value specified in its characteristic chart Defect in outdoor air temperature sensor Replace the outdoor air temperature sensor Defect...

Page 52: ...sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor heat exchanger temperature sensor Defectin outdoor heat exchanger temperaturesensor Replace the outdoor heat...

Page 53: ...n abnormality indication starts again Check the outdoor discharge pipe temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor discharge pipe temperature...

Page 54: ...oubleshooting When abnormality indication starts again Is indoor unit and outdoor unit model numbers matched NO Match the compatible model follow specification Check indoor and outdoor units model num...

Page 55: ...rotate fan by hand Replace fan motor Does fan rotate smoothly Turn power supply on and operate fan Replace outdoor PCB Replace fan motor Turn off power supply and disconnect fan motor connector then...

Page 56: ...irty Clean the air filter Clean the indoor unit heat exchanger YES Check the dust accumulation on the indoor unit heat exchanger Is the indoor unit heat exchanger dirty Defect in indoor pipe temperatu...

Page 57: ...exchanger dirty Clean the indoor unit heat exchanger Check the dust accumulation on the indoor unit heat exchanger Does it conform to the sensor characteristic chart Check the indoor pipe temperature...

Page 58: ...10 10 0 10 20 30 40 50 0 1 Pipe temp Sensor 2 Intake Air Temp Sensor 1 2 When abnormality indication starts again Does it cable connection loose or connector broken Check the indoor pipe temperature s...

Page 59: ...tuation AC power supply abnormal surge Defect in PFC circuitry Replace the outdoor unit PCB YES 280Vdc Defect in outdoor fan motor Replace outdoor fan motor NO Defect in compressor Replace compressor...

Page 60: ...gas amount is OK NO closed When F91 indication happens Check 3 way valve 3 way valve opened Open 3 way valve YES Check for gas leaking source Check for gas leaking source Refer to H16 Gas leaking Chec...

Page 61: ...nection at outdoor PCB and compressor terminal Is the connector connection normal From the disconnected harnesses U V and Disconnect the harnesses U V and W from the compressor terminal Is the blinkin...

Page 62: ...iation Reset the error code and turn on the unit Reinstall the outdoor unit Remove the obstacle s Clean the outdoor heat exchanger Is the outdoor fan motor operating Measure the AC DC voltage between...

Page 63: ...rheats due to defective of outdoor fan motor IPM overheats due to defective of internal circuitry of IPM IPM overheats due to defective IPM temperature sensor Multi Models Only o Compressor OL connect...

Page 64: ...2 3 way valve YES NO Does it conform to the sensor characteristic chart Replace the compressor tank temperature sensor NO YES Check for gas leakage Oil oozing out from the 2 3 way valve Repair the pip...

Page 65: ...power supply Check the main circuit electrolytic capacitor When F98 indication happens Get restarted and measure the input current NO Is Input current specification Replace the outdoor unit PCB NO YE...

Page 66: ...utdoor unit PCB Amplification IC defect Diode defect Defect in microcontroller Replace the outdoor unit PCB Is compressor vibration even NO Quite a lot of vibration at start operation YES Excessive am...

Page 67: ...ocedure 14 1 1 To Remove Cabinet Bottom Plate 1 Unscrew 14 screws on the cabinet bottom plate 10 screws on the cabinet top plate and detach cabinet bottom plate and cabinet top plate from unit Remove...

Page 68: ...3 Unscrew the 2 screws on the Fan Motor Bracket and detach Fan Motor Bracket 4 Remove the Fan Motor and Blower Fan from the unit 5 Use a 3 0 mm hexagonal wrench to loosen the bolts connecting the Fan...

Page 69: ...rator from the unit Remove Screw Remove Sensor 3 Unscrew 4 screws 1 nut and 1 Spring Clip on the Drain Motor Bracket and remove Drain Motor from unit Remove Nut Spring Clip Remove Screw 4 Unscrew 3 sc...

Page 70: ...1 6 1 880 0 0 9 3 9 1 8 3 19 1 6 6 26 3 5 1 Fan Performance Curve Airflow m3 min 0 0 5 0 4 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50...

Page 71: ...1 8 3 19 1 6 6 26 3 5 1 Fan Performance Curve Airflow m3 min 0 0 5 0 4 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 7...

Page 72: ...9 8 20 0 7 9 Fan Performance Curve Airflow m3 min 0 0 7 0 6 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0 75 0 8...

Page 73: ...9 8 20 0 7 9 Fan Performance Curve Airflow m3 min 0 0 7 0 6 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0 75 0 8...

Page 74: ...O I I I I I I I 17 ABS 5 38 A I R C O N D I T I O N E R O FF O N O N O FF S E T C A N C E L 1 2 3 T I M E R M O D E TEM P P O W E R FU L Q U I E T FA N SP E E D C L O C K S E T C H E C K R ES E T A C...

Page 75: ...CWT251031 22 HOLDER SENSOR 2 CWH32143 23 SENSOR COMPLETE 1 ACXA50C00030 O 24 BLOWER WHEEL ASS Y 2 CWH01K1041 25 FAN MOTOR 1 L6CBYYYL0179 O 26 FAN MOTOR BRACKET 2 CWD541265 27 SCREW FAN MOTOR BRACKET...

Page 76: ...S MS9SD3H CS MS12SD3H REMARK 48 ACCESSORY COMPLETE FLEXIBLE PIPE FOAM 1 CWH82C2111 49 ACCESSORY COMPLETE SCREW 1 CWH82C234 Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marke...

Page 77: ...1 CWT251031 CWT251032 22 HOLDER SENSOR 2 CWH32143 23 SENSOR COMPLETE 1 ACXA50C00030 O 24 BLOWER WHEEL ASS Y 2 CWH01K1041 25 FAN MOTOR 1 L6CBYYYL0179 O 26 FAN MOTOR BRACKET 2 CWD541265 27 SCREW FAN MOT...

Page 78: ...SD3H REMARK 48 ACCESSORY COMPLETE FLEXIBLE PIPE FOAM 1 CWH82C2111 49 ACCESSORY COMPLETE SCREW 1 CWH82C234 Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marked parts are recom...

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