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15.2. OUTDOOR UNIT / MAIN PCB

CU-MVG153KE
Main PCB ( Front Side )

CS-

MVG1

03KE

-MVG1

53KE

Summary of Contents for CS-MVG103KE

Page 1: ... 1999 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law CS MVG103KE CU MVG153KE Room Air Conditioners Order number RAC9911058C2 ...

Page 2: ...itor Display Serviceability Self diagnosis Test Run at both Cooling and Heating rated frequency 9 2 PROTECTION CONTROL FOR COOLING SOFT DRY 39 9 3 PROTECTION CONTROL FOR HEATING OPERATION40 10 Installation And Servicing Air Conditioner Using R410A 41 10 1 OUTLINE 41 10 2 TOOLS FOR INSTALLING SERVICING REFRIGERANT PIPING 42 10 3 REFRIGERANT PIPING WORK 46 10 4 INSTALLATION TRANSFERRING SERVICING 48...

Page 3: ...2 Functions 2 1 REMOTE CONTROL 3 CS MVG103KE CU MVG153KE ...

Page 4: ...2 2 INDOOR UNIT 4 CS MVG103KE CU MVG153KE ...

Page 5: ...5 CS MVG103KE CU MVG153KE ...

Page 6: ...2 3 OUTDOOR UNIT 6 CS MVG103KE CU MVG153KE ...

Page 7: ...06 Starting Current A 6 50 Piping Connection Port Flare piping inch inch G Half Union 3 8 L Half Union 1 4 G 3 Way valve 3 8 L 2 Way valve 1 4 Pipe Size Flare piping inch inch G gas side 3 8 L liquid side 1 4 G gas side 3 8 L liquid side 1 4 Drain Hose Inner diameter mm 12 Length m 0 7 Power Cord length Number of core wire Dimensions Height inch mm 10 31 32 279 25 25 32 540 Width inch mm 31 15 32 ...

Page 8: ...igerant R410A g oz 1250 44 1 Thermostat Electronic Control Protection Device Electronic Control Air Filter Material style P P Honeycomb Capacity Control Expansion valve Fan motor Capacitor µF VAC 2 0µF 400VAC Specifications are subject to change without notice for further improvement 8 CS MVG103KE CU MVG153KE ...

Page 9: ...4 Dimensions 4 1 CS MVG103KE INDOOR UNIT 9 CS MVG103KE CU MVG153KE ...

Page 10: ...4 2 CU MVG153KE OUTDOOR UNIT 10 CS MVG103KE CU MVG153KE ...

Page 11: ...R EVAPORATOR HEAT EXCHANGER CONDENSER 2 WAY VALVE VALVE 3 WAY 2 WAY VALVE VALVE 3 WAY C1 STRAINER C CAPILLARY TUBE SENSOR TEMP INTAKE PIPE TEMP SENSOR PIPE TEMP SENSOR INDOOR B HEAT EXCHANGER EVAPORATOR DISCHARGE TEMP SENSOR COMPRESSOR COMPRESSOR TEMP SENSOR OUTDOOR AIR TEMP SENSOR DRYER STRAINER STRAINER EXPANSION VALVE A EXPANSION VALVE B SUCTION TEMP SENSOR 11 CS MVG103KE CU MVG153KE ...

Page 12: ...E B 1 1 2 2 3 1 2 3 5C 3C TERNINAL THERMAL FUSE 102 FM 9C FAN MOTOR LOUVER MOTOR INCIDATOR P C B RECEIVER P C B 3C WIRELESS REMOTE CONTROL TRANSMITTER FUSE 20A FUSE 3 15A 1 2 3 SINGLE PHASE 230V 50Hz 1 2 3 SAME AS UNIT A OUITDOOR POWER SUPPLY INDOOR UNIT B INDOOR UNIT A OUTDOOR UNIT Indicates the electronic control unit C Indicates the number of core wires Example 5C 5 core wires C T CS MVG103KE C...

Page 13: ...3 1 5 A L 2 5 0 V Z NR CN MT R1 G R B Y 1 2 3 5 3 1 4 SENSOR AI R TEMP SENSOR 1 PI PE TEMP 1 MOTOR DISPL AY SEL F DIAGNOSIS POWER MONITOR DISPL AY EL ECT RONIC SENSOR 2 PI PE TEMP 2 1 2 3 THERMAL FUSE CN DISP1 W CN DI SP2 W 102 C 3A T O OUT DOOR UNIT PUMP DOWN SW TEST RUN AUTO SW 3 2 1 CN RCV1 W W W W W IREL ESS REMOTE CONT ROL CN RCV W CONTROLL ER REC EI VER EL ECTRONI C 1 2 3 CONT ROL L ER Y G R...

Page 14: ...W COMPRESSER R B Y Y R B THE PRENTHESIZED L ETTER IS INDICATED ON TERM I NAL COVER CN V BL UE CN L WHIT E BR OR Y BR R GR P V V P BL B Y B T RADE MARK R GR OR R BL Y BL OR R 3 GR C N D IS WHITE 2 1 5 4 CN EVA W HIT E 5 1 2 3 4 COIL EXP VAL VE COIL C N T H 3 YEL LOW BL Y R OR CN EVB YEL LO W GR 6 6 3 1 CR1 0 3 3 1 AC1 BL UE WH GR GR 2 1 3 1 4 3 C N T H 1 YEL L OW CN TANK B L U E C N T H 2 GREEN 2 S...

Page 15: ...8 Operation Details FUNCTIONS 8 1 SIMULTANEOUS OPERATION CONTROL 15 CS MVG103KE CU MVG153KE ...

Page 16: ...nternal Setting Temperature The internal setting temperature can be decided as follows 8 2 1 Table a Setting Temperature Shift based on outdoor air temperature 1 Cooling Soft Dry 2 Heating 8 2 2 Table b Setting Temperature Shift based on fan speed Remote control setting fan speed Cooling Dry Heating Lo 1 0 C 1 0 C 1 0 C Me Me Me Auto fan speed 1 0 C 1 0 C Hi 1 0 C 1 0 C 8 2 3 Table c Powerful Mode...

Page 17: ... Maximum Operation frequency Compressor Operation Frequency Hz One Indoor Unit Operation Two Indoor Units Operation Fc 10 47 75 Fc max 15 67 77 8 3 2 Heating Unit Hz Comp Operation Frequency Command Number of Indoor Unit A 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Comp Operation Frequency Command Number of Indoor Unit B 0 0 15 25 35 45 55 55 65 69 74 75 93 106 118 118 118 1 15 45 55 65 69 71 72 74 75 ...

Page 18: ...ry 30 seconds 30 minutes from the start of the operation the compressor is operating at Fc max The Thermostat OFF when the intake air temperature reaches 1 C below internal setting temperature and continues for 3 minutes When the Thermostat of both Indoor Units OFF the Compressor stops When the compressor stops it will not begin operation for 3 minutes Time Delay Safety Control When the intake air...

Page 19: ... starts from 4 5 6 7 If the Thermostat OFF operation after 3 minutes the deodorizing status will start from 6 8 4 3 Sensible Heat Control This control is to improve the feeling in high fan speed during low Comp Operation Frequency Command Number When the Comp Operation Frequency Command Number is less than 4 the fan speed will reduce When the Comp Operation Frequency Command Number is above 5 cont...

Page 20: ...y Safety Control When the intake air temperature reaches the Compressor ON temperature the Compressor starts operation When the compressor stops the outdoor fan motor stops 30 seconds later 8 5 2 Deodorizing Control This control is available during automatic fan speed for Cooling and Soft Dry Operation It is not available during anti freezing control When the Thermostat ON operation the deodorizin...

Page 21: ... intake air temperature and internal setting temperature Basically it can be divided into 2 periods as shown below 1 When indoor fan speed is Medium or above Refer to8 3 2 Compressor Operation Frequency 2 When indoor fan speed is lower than Medium Refer to8 3 2 Compressor Operation Frequency 21 CS MVG103KE CU MVG153KE ...

Page 22: ...sor stops When the compressor stops it will not start operation for 3 minutes Time Delay Safety Control When the intake air temperature decreases to the compressor ON temperature the compressor starts immediately When the compressor stops the outdoor fan motor stops 30 seconds later 8 6 2 Anti Cold Draft Control 1 Indoor Fan Control Indoor fan speed and airflow direction varies in accordance to th...

Page 23: ...is activated low electricity will be supplied to compressor for 3 minutes and stops for 7 minutes This condition is repeated until standby control is cancelled It will consume about 35W of electric power 3 Standby control will be cancelled when one of the following conditions occurs Unit starts operation Compressor temperature is over 9 C 4 When the unit is switched on by the remote control the co...

Page 24: ...tion starting signal is generated indoor fan outdoor fan 4 way valve are turned off and compressor operates at 61Hz for 30 seconds Deice operation starts During deice operation the compressor operating frequency is set at 85Hz Deice will end when the outdoor heat exchanger temperature rises to 13 C or after 11 min 30sec 24 CS MVG103KE CU MVG153KE ...

Page 25: ...e control setting temperature intake air temperature and outdoor air temperature During judging the operation mode indoor fan is running at Lo speed and outdoor fan at ON in order to sense the indoor intake air temperature and outdoor air temperature for 20 seconds At this time Power LED is blinking After the operation mode is selected Power LED light up There are 4 determination charts when autom...

Page 26: ...ry Heating 2 C Heating Cooling Soft dry 2 C When the indoor intake air temperature is lower than 16 C heating operation is immediately started When the outdoor air temperature is more than 25 C and the intake air temperature is over 16 C cooling operation is immediately started The operation mode is judged every 3 hours 8 8 1 Temperature Shift When the operation mode Heating Cooling or Soft Dry is...

Page 27: ...2 21 8 Me Manual Fan Powerful On Timer preparatory operation Manual Fan powerful Sensible Heat Control Auto Fan Me Manual Fan Powerful On Timer preparatory operation Manual Fan Powerful Temporary Operation 13 22 7 Auto Fan Sensible Heat Control Auto Fan Powerful 14 23 6 Manual Fan Powerful On Timer preparatory operation Manual Fan powerful Sensible Heat Control Auto Fan 15 23 9 Auto Fan Auto Fan P...

Page 28: ... Speed will move 1 rank up or down 3 Cooling Operation at SHi Speed During Cooling operation Indoor Fan speed is set at SHi when the following conditions occur Outside air temperature is 30 C or above Compressor operates at One Unit operation 47Hz and above Two Units operation 75Hz and above Remote control setting fan speed is High Indoor intake air temperature is 24 C or above Remote control sett...

Page 29: ...uto Indoor heat exchanger temperature C 33 B 70 A 15 Airflow direction manual 13 33 46 57 70 Cooling Airflow direction auto 7 36 Anti dew formation control 11 25 Airflow direction manual 7 15 25 33 41 Anti dew formation control 11 15 18 22 25 Dry Airflow direction auto 3 33 Anti dew formation control 11 25 Airflow direction manual 3 8 18 25 33 Anti dew formation control 11 15 18 22 25 Fan Airflow ...

Page 30: ...emote control OFF ON switch is pressed the blade will move to the Close position 2 Airflow Direction Auto By setting the airflow direction to AUTO the blade swings up and down from 7 36 during Cooling and Fan and 3 33 during Soft Dry During Heating operation the blade angle will shift according to the indoor heat exchanger temperature as shown below 30 CS MVG103KE CU MVG153KE ...

Page 31: ... 5 minutes or above Comp Operation Frequency Command Number is less than 5 When the indoor heat exchanger temperature is decreased to 13 C or below the control is cancelled and the indoor fan speed will resume from Lo to Low 8 13 POWERFUL MODE OPERATION When the powerful mode is selected the internal setting temperature will shift to achieve the setting temperature quickly 1 Cooling Operation 2 So...

Page 32: ...d After another hour 0 5 C will be increased again During sleep shift operation indoor fan speed operates at SLo 2 Heating Operation When the sleep button is pressed the remote control setting temperature will decrease 2 C after 1 hour or when the remote control setting temperature is reached After another hour 3 C will be decreased again During sleep shift operation indoor fan speed operates at L...

Page 33: ...perature and outdoor air temperature in order to determine the starting time for preparatory operation The Power LED blinks during sampling The time of the preparatory operation will start before the On Timer set time 1 Cooling Soft Dry 2 Heating 8 16 AUTO RESTART CONTROL If there is a power failure operation will automatically be restarted when the power is resumed It will start with the previous...

Page 34: ...Cooling Soft Dry Indication Comp Operation Frequency Command Number 1 4 5 6 7 8 9 10 15 Heating Indication Comp Operation Frequency Command Number 1 3 4 5 6 7 8 9 10 15 8 18 REMOTE CONTROL SIGNAL RECEIVING SOUND ON OFF Press the AUTO button for 10 seconds or longer to switch off the signal receiving sound Press the AUTO button for 10 seconds or longer again to switch on the signal receiving sound ...

Page 35: ...ff by remote control or Automatic switch 3 Total Running Current Control When the outdoor unit total running current AC exceeds l1 the frequency is lowered by 1 rank If l1 is not exceeded for 30 seconds the frequency is highered by 1 rank at one time If the outdoor unit total running current exceeds l2 the compressor is immediately stopped for 3 minutes Cooling Soft Dry set value Note Zone A will ...

Page 36: ... to 95 C after 3 minutes Time Delay Safety Control 5 Compressor Overheating Prevention Control When the temperature of compressor rises to 105 C the frequency is reduced as shown in diagram below When the temperature rises to 112 or above the compressor stops The compressor will start operating at low frequency when the temperature falls to 112 C and resume to normal condition when the temperature...

Page 37: ... DC Peak Current Control When the electric current to the power transistor exceeds the set value DC 24 3A the compressor stops The compressor restarts after 3 minutes If within 30 seconds the set value exceeds again the compressor will stop for 1 minte If this condition repeats 7 times all indoor and outdoor relays will be turned off TIMRLED will blink and F99 is displayed 9 DC Reset When the volt...

Page 38: ...ir temperature Cooling Soft Dry Heating 12 2 way valve control Protection of compressor When the 2 way valve is ON at a 15 seconds later after the compressor started operation ON time of 2 way valve is 45 seconds b During Deice operation The 2 way valve is OFF at during normal operation 38 CS MVG103KE CU MVG153KE ...

Page 39: ... Outdoor air temperature is less than 30 C 3 Remote control setting temperature is less than 25 C During anti dew formation control compressor Operation Frequency Command Number at 8 and vertical airflow direction blade moves down slightly as shown in Airflow Direction Control Indoor fan speed increases by 1 rank if it is set at Low or below or decreases by 2 ranks if it is set at Hi speed This co...

Page 40: ...he intake air temperature is 10 C or above and remote control setting fan speed is less than Medium the compressor operates at 92Hz 2 High Pressure Control The compressor operating frequency is regulated in accordance to the indoor heat exchanger temperature 40 CS MVG103KE CU MVG153KE ...

Page 41: ... R410A and R22 R410A R22 Composition wt R32 R125 50 50 R22 100 Boiling point C 51 4 40 8 Vaporizing pressure 25 C 1 56 Mpa 15 9 kgf cm 0 94 Mpa 9 6 kgf cm Saturated vapor density 64 0 kg m 44 4 kg m Flammability Non flammable Non flammable Ozone destroying point ODP 0 0 055 Global warming point GWP 1730 1700 b Compositional change pseudo azeotropic characteristics R410A is a pseudo azeotropic mixt...

Page 42: ...alve service port on the outdoor unit has been changed Also to increase its ability to withstand pressure the opposing dimensions have been changed for the refrigerant pipe flaring size and flare nut Accordingly when installing or servicing refrigerant piping you must have both the R410A and ordinary tools listed below Table 3 Tools for Installation transferring or replacement Type of work Ordinar...

Page 43: ... Table 5 Conventional wrenches R410A wrenches For 1 4 opposite side x torque 17mm X 18 N m 180 kgf cm 17mm X 18 N m 180 kgf cm For 3 8 opposite side x torque 22mm X 42 N m 420 kgf cm 22mm X 42 N m 420 kgf cm For 1 2 opposite side x torque 24mm X 55 N m 550 kgf cm 26mm X 55 N m 550 kgf cm 4 Manifold gauge Because the pressure is higher for the R410A type the conventional type cannot be used Table 6...

Page 44: ...ower setting the sensitivity for R134a at 1 the level for R410A will drop to 0 6 For detecting small amounts of gas leakage use the electric gas leak detector for HFC refrigerant Detection sensitivity with R410A is about 23 g year Fig 6 Electric gas leak detector for HFC refrigerant 8 Electronic scale for refrigerant charging Because of the high pressure and fast vaporizing speed of R410A the refr...

Page 45: ...ze of the charging hose fitting 1 2 UNF 20 threads The packing must also be made of an HFC resistant material Fig 9 Charging orifice and packing 10 2 3 R410A Tools Which Are Usable for R22 Models Table 9 R410A tools which are usable for R22 models R410A tools Usable for R22 models 1 Copper tube gauge for clearance adjustment OK 2 Flaring tool clutch type OK 3 Manifold gauge NG 4 Charging hose NG 5...

Page 46: ...edure and precautions for flaring work a Cut the pipe Use a pipe cutter and cut slowly so the pipe will not be deformed b Remove burrs and clean shavings from the cut surface If the shape of the pipe end is poor after removing burrs or if shavings adhere to the flared area it may lead to refrigerant leaks To prevent this turn the cut surface downward and remove burrs then clean the surface careful...

Page 47: ...ightening torque N m kgf cm 1 4 6 35 14 18 140 180 18 180 3 8 9 52 33 42 330 420 42 420 1 2 12 70 55 550 55 550 10 3 3 Storing and Managing Piping Materials 1 Types of piping and their storage The following is a general classification of the refrigerant pipe materials used for ACs Because the gas pressure of R410A is approximately 1 6 times as high as that of R22 copper pipes with the thickness sh...

Page 48: ...cess for at least 15 minutes then check to make sure the low pressure gauge has reached 0 1 MPa 76 cmHg Once the vacuum process has finished fully close the handle Lo of the manifold gauge and stop the vacuum pump operation then remove the charging hose that is connected to the vacuum pump adaptor Leave the unit in that condition for 1 2 minutes and make sure that the needle of the manifold gauge ...

Page 49: ...ves Buried sections of the piping also cannot be checked 2 Pipe cleaning A large quantity of refrigerating machine oil mineral oil adheres to existing pipes due to the refrigeration cycle circulation If the pipes are used just as they are for the R410A cycle the capacity will be lowered due to the incompatibility of this oil with the R410A or irregularities may occur in the refrigeration cycle For...

Page 50: ...se the valve Lo of the manifold gauge and stop the operation of the unit 2 5 11 Quickly remove the charging hose from the service port 6 If you stop midway through the refrigerant that is in the cycle will be discharged 12 After putting on the caps for the service port and operating valve inspect around the caps for a gas leak 6 7 Fig 13 Re charging refrigerant 10 4 6 Brazing As brazing requires s...

Page 51: ...ing temperature and with a minimum of heating area 3 Overheating Protection In order to prevent components near the brazed part from overheating damage or quality deterioration due to flame or heat take adequate steps for protection such as 1 by shielding with a metal plate 2 by using a wet cloth and 3 by means of heat absorbent 4 Movement during Brazing Eliminate all vibration during brazing to p...

Page 52: ...e wall ceiling fence or other obstacles Indoor unit of this room air conditioner shall be installed on the wall in a height of at least 2 3m 11 2 2 OUTDOOR UNIT If an awning is built over the unit to prevent direct sunlight or rain be careful that heat radiation from the condenser is not obstructed Ensure that no animals or plants can be affected by the hot air discharged Keep the spaces indicated...

Page 53: ...11 2 3 PIPING LENGTH 53 CS MVG103KE CU MVG153KE ...

Page 54: ...11 3 INDOOR OUTDOOR UNIT INSTALLATION DIAGRAM 54 CS MVG103KE CU MVG153KE ...

Page 55: ...f copper pipes used with R410A are as shown in Table Never use copper pipes thinner than 0 8mm 11 5 NOTE 1 Switching events of the automatic thermostat control of this equipment may temporarily generate strong electromagnetic disturbances that could effect other apparatus in the same power supply system Don t connect other electric appliances to the same supply lines 2 this equipment does not comp...

Page 56: ...ir conditioner starts operation at Heating rated frequency 12 1 2 TROUBLESHOOTING AIR CONDITIONER Refrigeration cycle system In order to diagnose malfunctions make sure that there are no electrical problems before inspecting the refrigeration cycle Such problems include insufficient insulation problem with the power source malfunction of a compressor or a fan The normal outlet air temperature and ...

Page 57: ...during operation Low 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 outdoor unit Inefficient compression Carry out the measurements of pressure electric current and temperature fifteen minutes after an operation is stated 57 CS MVG103KE CU MVG153KE ...

Page 58: ... the abnormality and use temporary operation for abnormalities indicated by mark in the table below Use the remote control to select cooling or heating operation mode and press OFF ON button At this moment four short beeps bip bip bip bip will sound and TIMER LED will blink Diagnosis display Abnormality Protection control Abnormality Judgement Temporary operation Primary location to verify H11 Ind...

Page 59: ...ating protections 3 times occurrence within 30 minutes Pipe sensor F96 Outdoor power transistor module overheating protection 4 times occurrence within 30 minutes Excess refrigerant Improper heat radiation Power transistor F97 Outdoor compressor overheating protection 4 times occurrence within 20 minutes Insufficient refrigerant Compressor F98 Total running current protection 3 times occurrence wi...

Page 60: ...l 12 3 2 Changing the wireless remote control transmission code By adding a jumper wire to the remote control side it is possible to select 4 transmission codes including one at time of delivery condition 1 Remote control Indoor Setting Code Note Switch SW B A J 1 1 A A At product delivery 2 B B 3 A Jumper wire C 4 B Jumper wire D 12 3 3 Remote Control Batteries The batteries can be used for appro...

Page 61: ...12 4 DISASSEMBLY OF PARTS 12 4 1 Indoor Control Board removal Procedure 1 Remove the Front Grille Fig1 Fig2 2 Remove the Indoor Control Board Fig3 Fig4 61 CS MVG103KE CU MVG153KE ...

Page 62: ...12 4 2 Removal of Electronic Controller Procedure Fig5 Fig6 Fig7 Fig8 Fig9 Fig10 62 CS MVG103KE CU MVG153KE ...

Page 63: ...12 4 3 Indoor Fan Motor Removal Procedure Fig11 Fig12 Fig13 Fig14 Fig15 63 CS MVG103KE CU MVG153KE ...

Page 64: ...12 4 4 Cross Flow Fan Removal Procedure 1 Remove Discharge Grille Fig16 2 Remove Cross Flow Fan Fig17 Fig18 Fig19 64 CS MVG103KE CU MVG153KE ...

Page 65: ...of The Control Board 1 Remove the cabinet top plate Four screws Fig 20 Fig 20 2 Remove the front grille Three screws Six tabs Fig 21 Fig 21 3 Remove the control board cover Top Four tabs Fig 22 Fig 22 65 CS MVG103KE CU MVG153KE ...

Page 66: ...ig 23 Fig 23 5 Remove all connectors which are connected to the control board and remove the main control board from the power supply board Three screws Four tabs Fig 24 Fig 24 6 Remove the noise filter Six tabs Fig 25 Fig 25 66 CS MVG103KE CU MVG153KE ...

Page 67: ...7 12 4 6 Removal procedure of The Propeller Fan and The Motor 1 Remove the cabinet top plate and the front grille Fig 20 2 Remove the propeller fan by rotating the nut at the center of the fan to the right Fig 28 Fig 28 3 Remove the control board cover Front Fig 23 67 CS MVG103KE CU MVG153KE ...

Page 68: ...4 Remove all connectors which are connected to the motor from the main control board 5 Remove the motor by releasing four screws Fig 29 Fig 29 68 CS MVG103KE CU MVG153KE ...

Page 69: ...13 Technical Data 13 1 OPERATION CHARACTERISTICS 69 CS MVG103KE CU MVG153KE ...

Page 70: ...70 CS MVG103KE CU MVG153KE ...

Page 71: ...r Hz No detection 30 min 0 Anti freezing Control 6 min 0 Theorem OFF delay 3 min 0 Low pressure control gas leakage compressor OFF time 2 min 0 Time delay safety control 2 min 58 sec 0 Odor timer status shift time 30 sec 0 60 sec Hz lock time 30 sec 0 Self diagnosis display time 10 sec 0 Auto mode judgement sampling time 58 sec 0 24 hours ON OFF timer 1 hour 1 min Hot start forced completion 4 min...

Page 72: ...Ω C102 1000P R108 100Ω 430Ω 9 C103 1000P R110 100Ω C104 1000P R111 100Ω C101 1000P IC101 4 5 3 2 1 6 7 8 9 MX9 DISPLAY RECEIVER 1 2 3 1 2 3 MX3 3 2 1 VCC VOUT A52PS442 GND PD C101 6 3V 22µ R101 100Ω 1 2 5 6 HEAT EXCHANGER TEMP SENSOR1 20K 3950 HEAT EXCHANGER TEMP SENSOR2 20K 3950 3 4 INTAKE AIR TEMP SENSOR 15K 3950 2 1 5 4 3 MX5 1 2 3 4 5 STEPPING MOTOR DRIVE SEQUENCE FOR CCW ROTATION VIEWED ON TH...

Page 73: ...01µ R19 25 5K R20 18 2K A52C108 SENSOR CIRCUIT B A C D E F G 11 12 13 14 15 16 17 18 19 G I O Q4 Q3 PC1 PC2 PC3 CN MTR1 10 0 10 20 30 40 50 0 10 20 30 40 50 60 70 Sensor Thermistor Characteristics 1 1 2 3 2 3 Indoor Heat Exchanger Sensor 1 2 Indoor Intake Outdoor Air Sensor Outdoor Heat Exchanger Sensor 1 2 Outdoor Pipe Sensor Intake Air Indoor Heat Exchanger Temp 0 10 20 30 40 50 60 70 1 2 3 4 In...

Page 74: ...6K R240 5 23K C231 0 01µ 14 9 8 R237 4 7K 1 2 3 4 C230 0 01µ R238 10K R236 510K R9 10K 11 10 13 R297 3WS 47K R19 1 4W 47K R20 1 4W 47K R298 3WS 47K R18 1 4W 4 7K R17 1 4W 4 7K R294 5 49K C270 0 01µ ZD202 ZD201 1 2 3 4 R290 10K C271 50V 0 47µ R296 1 00K R295 4 02K 8 4 2 3 1 R291 9 09K C265 50V1µ R300 1 00K R209 4 02K C264 1000P R292 5 1K 6 5 7 2 XH 3 1 3 1 YLW XH 3 2 3 C69 0 01µ R272 4 99K C256 16V...

Page 75: ...4W 3 6K R227 1 4W 3 6K D211 D212 R228 12K C215 0 01µ G O I C216 0 01µ C223 25V 100µ C220 35V 330µ C218 25V 470µ R225 12K D210 R245 1 4W110Ω R246 1 4W110Ω R247 1 4W110Ω R248 1 4W110Ω D214 C233 25V 470µ R229 1 4W 3 6K C230 1 4W 3 6K S13150NAF S13050NAF S13150NAF C235 0 01µ G O I G O I C217 0 01µ C236 0 01µ C234 25V 100µ R124 20K L001 ZD001 D002 R001 D001 C001 C002 IC001 C002 5 6 3 4 1 2 H C B A 7 8 ...

Page 76: ...2 VLCD 2 13 VLCD 1 14 VDD 15 OSC 1 16 OSC 2 48 47 SEG 24 46 SEG 25 45 SEG 26 44 SEG 27 43 SEG 28 42 SEG 29 41 SEG 30 40 SEG 31 39 SEG 32 SEG 32 SEG 31 SEG 30 SEG 29 SEG 28 SEG 27 SEG 26 SEG 25 38 RMO 37 P40 36 P23 35 P22 34 P21 33 P20 REMOTE CONTROLLER NO 0 SW1 SW2 SIDE A OFF SIDE B ON J1 ON SHORT SHORT OFF ON OFF 1 2 3 REMOTE CONTROLLER IC1 SBL3011M MICROCOMPUTER LIQUID CRYSTAL DISPLAY C1 47µ C3 ...

Page 77: ...15 Printed Circuit Board 15 1 INDOOR UNIT CS MVG103KE Main PCB Front Side Display PCB Front Side Back Side 77 CS MVG103KE CU MVG153KE ...

Page 78: ...CS MVG103KE Main PCB Back Side Receiver PCB 78 CS MVG103KE CU MVG153KE ...

Page 79: ...15 2 OUTDOOR UNIT MAIN PCB CU MVG153KE Main PCB Front Side CS MVG103KE CU MVG153KE 79 ...

Page 80: ...CU MVG153KE Main PCB Back Side CS MVG103KE CU MVG153KE 80 ...

Page 81: ...15 3 OUTDOOR UNIT TRANSISTOR MODULE CU MVG153KE Transistor Module PCB Front Side Back Side 81 CS MVG103KE CU MVG153KE ...

Page 82: ...16 Exploded View Replacement Parts List 16 1 CS MVG103KE 16 1 1 Exploded View 82 CS MVG103KE CU MVG153KE ...

Page 83: ...FRONT GRILLE 1 M 19 CWE20C2051 DISCHARGE GRILLE COMPLETE 1 M 20 CWE24462 VANE 1 M 21 CWE39C299 INDICATOR COMPLETE 1 M 22 CWH02C060 CROSS FLOW FAN 1 M 23 CWH13463 CONTROL BOARD COVER 1 M 24 CWH13464 CONTROL BOARD COVER 1 M 25 CWH13465 CONTROL BOARD COVER 1 M 26 CWH13466 CONTROL BOARD COVER 1 M 27 CWH31115 HOLDER CORD 1 M 28 CWH32142 HOLDER SENSOR 1 M 29 CWH32143 HOLDER SENSOR 1 M 30 CWH36157 INSTAL...

Page 84: ...16 2 CU MVG153KE 16 2 1 Exploded View 84 CS MVG103KE CU MVG153KE ...

Page 85: ...ALVE 1 J 27 CWB021009 2 WAY VALVE 2 J 28 CWT25086 FLARE NUT 2 J 29 CWB051003 EXPANSION VALVE 2 J 30 CWB092014 COMPRESSOR 1 J 31 CWB101004 DRYER 1 J 32 CWB11094 STRAINER 2 J 33 CWB14010 RECEIVER 1 M 34 CWB15164 CAPILLALY TUBE 1 J 35 CWB32C1025 CONDENSER 1 J 36 CWB81043 PACKING 1 M 37 CWB81047 PACKING 1 M 38 CWD311002 AIR GUIDER P F 1 J 39 CWD50K2018 CHASSIS COMPLETE 1 J 40 CWD541003 FAN MOTOR BRACK...

Page 86: ...A54SC201 4T DIODE M D212 A54EC11FS2TL DIODE M D214 D215 D216 D217 A54SC201 4T DIODE M ZD201 ZD202 A54D5 6EB3TB ZENAR DIODE M PC1 PC2 A52LP521LIGB PHOTO COUPLER M PC3 A52TLP2531LF PHOTO COUPLER M PC12 A52LP620LIGB PHOTO COUPLER M PC13 A52LP521LIGB PHOTO COUPLER M PC200 PC201 A52PS2633EL PHOTO COUPLER M PC202 PC203 A52LP521LIBL PHOTO COUPLER M PC204 A52LP521LIGB PHOTO COUPLER M FUSE102 XBA2C31TRO FU...

Page 87: ...0139 RELAY M RY HOT RY 2CV A00207M RELAY M ZNR200 ZNR201 ERZVEAV271 ZNR M X1 A45CCC6MH02T RESONATOR M X2 A45CCC4MH02T RESONATOR M Note Spare parts are supplied from M is from MACC Malaysia Vender code 086 J is from Japan 87 CS MVG103KE CU MVG153KE Printed in Japan MS1299SO ...

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