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11

Unit: inch

MUZ-GE09NA  MUY-GE09NA

Outdoor

heat

exchanger

Flared connection

Defrost

thermistor

RT61

(

MUZ

)

Discharge
temperature
thermistor
RT62

Flared connection

Stop valve

(with strainar)

Stop valve
(with service port)

Refrigerant flow in cooling

Compressor

4-way valve

Refrigerant flow in heating (

MUZ

)

Refrigerant pipe  ø3/8
(with heat insulator)

Refrigerant pipe  ø1/4
(with heat insulator)

R.V. coil (

MUZ

)

heating ON
cooling OFF

Strainer
#100

LEV

Ambient

temperature

thermistor

RT65

Muffler

Capillary tube
O.D. 0.118 × I.D. 0.079

× 9-7/16

(ø3.0 × ø2.0 × 240)

Outdoor heat

exchanger

temperature

thermistor

RT68

Service port

Service port

Muffler

Unit: inch

MUZ-GE12NA  MUZ-GE15NA  MUY-GE12NA  MUY-GE15NA

Outdoor

heat

exchanger

Flared connection

Defrost

thermistor

RT61

(

MUZ

)

Discharge
temperature
thermistor
RT62

Flared connection

Stop valve

(with strainar)

Stop valve
(with service port)

Refrigerant flow in cooling

Compressor

4-way valve

Refrigerant flow in heating (

MUZ

)

Refrigerant pipe  ø3/8

 (GE12NA)

Refrigerant pipe  ø1/2

 (GE15NA)

(with heat insulator)

Refrigerant pipe  ø1/4
(with heat insulator)

R.V. coil (

MUZ

)

heating ON
cooling OFF

Strainer
#100

Capillary tube
O.D. 0.118 × I.D. 0.071

× 23-5/8

(ø3.0 × ø1.8 × 600) (×2)

LEV

Ambient

temperature

thermistor

RT65

Muffler

Capillary tube
O.D. 0.118 × I.D. 0.079

× 9-7/16

(ø3.0 × ø2.0 × 240)

Outdoor heat

exchanger

temperature

thermistor

RT68

Muffler

Service port

Service port

6

REFRIGERANT SYSTEM DIAGRAM

Содержание Mr.Slim MUY-GE09NA

Страница 1: ...ROL 22 9 SERVICE FUNCTIONS 23 10 TROUBLESHOOTING 23 11 DISASSEMBLY INSTRUCTIONS 40 Models MUZ GE09NA MUZ GE12NA MUZ GE15NA MUZ GE18NA MUY GE09NA MUY GE12NA MUY GE15NA MUY GE18NA SPLIT TYPE AIR CONDITI...

Страница 2: ...2 MUZ GE09NA MUZ GE12NA MUZ GE15NA MUZ GE18NA MUY GE09NA MUY GE12NA MUY GE15NA MUY GE18NA 1 New model 1 TECHNICAL CHANGES...

Страница 3: ...MUZ GE15NA MUY GE09NA MUY GE12NA MUY GE15NA Air outlet Drain outlet Piping Drain hose Air inlet back and side MUZ GE18NA MUY GE18NA Piping Air outlet Drain hose Drain outlet Air inlet back and side 2...

Страница 4: ...C R L A 6 6 4 9 6 6 4 9 L R A 8 2 6 1 8 2 6 1 Refrigeration oil cc Model 320 NEO22 Refrigerant control Linear expansion valve Sound level 1 Cooling dB A 46 46 49 49 Heating dB A 50 51 Defrost method R...

Страница 5: ...7 4 6 8 10 0 10 0 L R A 9 3 8 5 12 5 12 5 Refrigeration oil cc Model 450 NEO22 Refrigerant control Linear expansion valve Sound level 1 Cooling dB A 49 49 54 54 Heating dB A 51 56 Defrost method Reve...

Страница 6: ...r Speed 70 60 17 15 H0 1 Heating Steady State at minimum compressor Speed 70 60 62 56 5 H1 1 Heating Steady State at minimum compressor Speed 70 60 47 43 H2 V Heating at Intermediate compressor Speed...

Страница 7: ...n both sides of the unit 14 in or more 8 in or more 4 in or more 4 in or more Open two sides of left right or rear side MUZ GE18NA MUY GE18NA 20 9 32 14 3 16 Air in 11 25 32 2 19 32 Air in Air out 19...

Страница 8: ...8 MUZ GE09NA MUZ GE12NA 5 WIRING DIAGRAM MUY GE09NA MUY GE12NA...

Страница 9: ...9 MUZ GE15NA MUY GE15NA...

Страница 10: ...10 MUZ GE18NA MUY GE18NA...

Страница 11: ...vice port Service port Muffler Unit inch MUZ GE12NA MUZ GE15NA MUY GE12NA MUY GE15NA Outdoor heat exchanger Flared connection Defrost thermistor RT61 MUZ Discharge temperature thermistor RT62 Flared c...

Страница 12: ...h heat insulator Refrigerant pipe 1 4 with heat insulator LEV R V coil MUZ heating ON cooling OFF Muffler 100 Receiver Outdoor heat exchanger temperature thermistor RT68 Ambient temperature thermistor...

Страница 13: ...SHC TPC TC SHC TPC MUZ GE09NA MUY GE09NA 71 11 0 7 6 0 59 10 3 7 1 0 64 9 7 6 6 0 69 9 0 6 2 0 73 8 3 5 7 0 76 67 10 4 8 6 0 55 9 7 8 0 0 61 9 0 7 4 0 66 8 4 6 9 0 70 7 7 6 3 0 73 63 9 8 9 4 0 53 9 1...

Страница 14: ...nsumption kW 2 Above data is for heating operation without any frost How to operate with fixed operational frequency of the compressor 1 Press the EMERGENCY OPERATION switch on the front of the indoor...

Страница 15: ...ature F SHF at rating condition 0 71 498 CFM Airflow 65 75 85 95 105 115 Outdoor intake air DB temperature F Total power consumption kW Total capacity 10 3 Btu h 65 70 75 75 70 65 20 16 12 8 4 Indoor...

Страница 16: ...Indoor DB temperature F 86 80 75 70 MUZ GE15NA MUY GE15NA PSIG 6870 75 80 85 90 95 100 105 F 260 300 340 380 420 PSIG 6870 75 80 85 90 95 100 105 F 110 130 150 170 190 Condensing pressure 86 80 75 70...

Страница 17: ...n without any frost MUZ GE12NA MUZ GE09NA MUZ GE18NA MUY GE18NA 5 15 25 35 45 55 65 75 F 5 15 25 35 45 55 65 75 F 60 85 110 135 160 185 210 260 300 340 380 420 460 Indoor DB temperature F Condensing p...

Страница 18: ...SIG PSIG 75 70 65 54Hz Indoor DB temperature F Suction pressure Outdoor ambient temperature 75 70 65 54Hz 5 15 25 35 45 55 65 75 F 60 85 110 135 160 185 210 5 15 25 35 45 55 65 75 F 300 325 350 375 40...

Страница 19: ...put kW 0 638 0 737 0 938 1 147 Comp current A 3 32 3 00 3 66 3 31 4 39 3 97 5 41 4 89 Fan motor current A 0 27 0 24 0 30 0 27 0 34 0 31 0 31 0 28 Refrigerant circuit Condensing pressure PSIG 389 331 3...

Страница 20: ...569 1 595 1 860 Comp current A 4 86 4 40 7 38 6 67 6 97 6 29 8 36 7 55 Fan motor current A 0 33 0 30 0 34 0 31 0 80 0 72 0 64 0 59 Refrigerant circuit Condensing pressure PSIG 400 431 376 458 Suction...

Страница 21: ...wice 2 Test run operation starts and continues to operate for 30 minutes 3 Compressor operates at rated frequency in COOL mode or 58 Hz in HEAT mode 4 Indoor fan operates at High speed 5 After 30 minu...

Страница 22: ...the compressor has stopped running ON OFF Compressor Outdoor fan motor R V coil ON OFF ON OFF COOL 5 seconds HEAT 5 seconds 8 3 RELATION BETWEEN MAIN SENSOR AND ACTUATOR Sensor Purpose Actuator Compr...

Страница 23: ...of the following during servicing 1 Before servicing the air conditioner be sure to turn OFF the main unit first with the remote controller then after con firming the horizontal vane is closed turn o...

Страница 24: ...rmality Before blinking does the upper lamp of OPERATION INDICA TOR lamp stay ON for 3 seconds Stays ON for 3 seconds without beep The outdoor unit is abnormal The indoor unit is abnormal Check the bl...

Страница 25: ...Check the blinking pattern and confirm the abnormal point with the out door unit failure mode table 10 2 3 Make sure to check at least two consecutive blinking cycles 2 Releasing the failure mode reca...

Страница 26: ...re of outdoor heat exchanger temperature thermistor exceeds 158 F 70 C in COOL mode Check refrigerant circuit and refrigerant amount Check stop valve 7 time flash 2 5 seconds OFF Fin temperature P C b...

Страница 27: ...d refrigerant amount Check stop valve 11 8 time flash 2 5 seconds OFF Compressor syn chronous abnormal ity The waveform of compressor current is distorted Reconnect connector of compressor Refer to 10...

Страница 28: ...to warm it up Refer to 10 6 Test point diagram and voltage 1 Inverter P C board for the chart of thermistor Compressor Measure the resistance between terminals using a tester Temperature 14 104 F 10...

Страница 29: ...ration method Start cooling or heating operation by pressing EMERGENCY OPERATION switch on the indoor unit TEST RUN OPERA TION Refer to 7 6 Measurement point at 3 points BLK U WHT V BLK U RED W WHT V...

Страница 30: ...cal circuit check Contact of the compressor connector including CN61 Output voltage of inverter P C board and balance of them See 10 5 Direct current voltage between DB61 and on the inverter P C board...

Страница 31: ...CN721 is disconnected or R V coil is open voltage is generated between the terminal pins of the connector although no signal is being transmitted to R V coil Check if CN721 is connected Is there 208 2...

Страница 32: ...outdoor fan motor normal Refer to 10 4 Check the connection between the connector CN931 and CN932 Disconnect CN932 from the inverter P C board and turn on the power supply Rotate the outdoor fan moto...

Страница 33: ...R lamp on the indoor unit light up Dose LED on the inverter P C board light up or flash Refer to 10 6 1 No Replace the inverter P C board Is there bus bar voltage 260 325 VDC between DB61 and DB61 on...

Страница 34: ...easure the voltage by an analog tester Properly fix the LEV coil to the expansion valve Replace the inverter P C board Replace the LEV coil Replace the expansion valve Is LEV coil properly fixed to th...

Страница 35: ...f the connectors CN931 CN932 of the outdoor fan motor If the connection is poor make it correct Operate the outdoor unit by starting EMERGENCY OPERATION Check the LED indication on the in verter P C b...

Страница 36: ...g 3 Yes No Lighted or not lighted Replace the inverter P C board or the outdoor electronic control P C board 2 2 Be careful of the residual voltage of smoothing capacitor Yes 3 Be sure to check this w...

Страница 37: ...ngth or the installation condition combination of specific conditions such as antennas or wiring Check the followings before asking for service 1 Devices affected by the electromagnetic noise TV sets...

Страница 38: ...Y GE12NA MUY GE15NA 10 6 TEST POINT DIAGRAM AND VOLTAGE Back side of unit Fin temperature thermistor RT64 CN642 Ambient temperature thermistor RT65 CN643 Discharge temperature thermistor RT62 CN641 De...

Страница 39: ...unit Fin temperature thermistor RT64 CN642 Ambient temperature thermistor RT65 CN643 Discharge temperature thermistor RT62 CN641 Defrost thermistor RT61 CN641 MUZ LEV connector CN724 Bus bar voltage...

Страница 40: ...f the cabinet Back panel Service panel Screws of the top panel Screw of the cabinet Screws of the top panel Hooks Screw of the service panel Screw of the conduit cover Conduit plate Conduit cover 1 Sl...

Страница 41: ...ollowing connectors Inverter P C board CN721 R V coil 3 Remove the R V coil Photo 5 4 Removing the discharge temperature thermistor defrost thermistor outdoor heat exchanger tempera ture thermistor an...

Страница 42: ...net and panels Refer to 1 2 Remove the inverter assembly Refer to 2 3 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 PSIG 4 Detach the welded...

Страница 43: ...nel 5 Remove the top panel 6 Remove the valve cover 7 Disconnect the power supply and indoor outdoor connect ing wire 8 Remove the screws of the cabinet 9 Remove the cabinet 10 Remove the screws of th...

Страница 44: ...inverter assembly Photo 4 6 Remove the screw of the ground wire and screw of the T B support Photo 4 7 Remove the screw of the PB fixture 8 Remove the relay panel from the PB support 9 Remove the inve...

Страница 45: ...6 6 Pull out the ambient temperature thermistor from its holder Photo 6 Photo 6 Photo 7 Photo 8 5 Removing outdoor fan motor 1 Remove the top panel cabinet and service panel Refer to 1 2 Disconnect th...

Страница 46: ...46...

Страница 47: ...47...

Страница 48: ...7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2009 MITSUBISHI ELECTRIC CO LTD Distributed in Jul 2009 No OBH 549 5 Made in Japan New publication effective Jul 2009 Specifications subject to...

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