SERVICE MANUAL MU-A08VD- MU-A10VD- MU-A13VD
Contents
1. 1740 1800 1860 1848 1872 1896 Starting current 17 18 19 18 19 20 28 29 5 31 Electrical data Compressor motor current 2 85 2 85 2 84 3 22 3 22 3 21 4 53 4 52 4 51 Fan motor current 0 24 0 25 0 25 0 33 0 34 0 35 Coefficient of performance C O P 3 24 3 24 3 24 3 46 3 46 3 46 3 36 3 36 3 36 Model RH135VHCC RH145VHCC RH207VHAC Output 650 700 1000 Winding resistance at20 C x o o ge a E C R 4 18 C R 4 03 C S 5 76 C S 5 71 C R 2 59 C S 3 94 Model RA6V21 AC RA6V33 KA Winding resistance at20 C Fan motor WHT BLK 347 BLK RED 281 WHT BLK 215 BLK RED 307 Dimensions WxHxD 800x550x285 Weight 31 36 Sound level 44 45 46 47 47 48 Fan speed 725 745 770 835 845 855 Fan speed regulator Refrigerant filling capacity R22 0 55 1 05 Refrigeration oil Model NOTE Test conditions are based on JIS C 9612 Cooling Indoor Outdoor DB27 C WB19 C DB35 C WB24 C Indoor Outdoor piping length 5 m 300 MS56 520 MS56 4 OUTLINES AND DIMENSIONS OUTDOOR UNIT ai MU AO8VD rF REQUIRED SPACE Basically open 100mm or more2. 6 Remove the cabinet 7 Disconnect the indoor outdoor connecting wire 8 Remove the screws fixing the back panel 9 Remove the back panel Screws of the Photo 3 top panel Service panel Screw of the service panel Direction B to remove 2 gt Screw of the cabinet Photo 1 Screws of the front panel and motor support J anii W SOE i y a a mmm e Screws of the cabinet lt a rae peel a Photo 2 Screws of the top panel Screws of the cabinet OPERATING PROCEDURE PHOTOS 2 Removing the electrical parts 1 Remove the service panel and the cabinet Refer to 1 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB Photo 4 Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB 3 Removing the propeller and the outdoor fan motor 1 Remove the cabinet Refer to 1 2 Remove the propeller nut and the propeller NOTE Loose the propeller in the rotating direction for removal When attaching the propeller align the mark on the propeller and the motor shaft cut section Set the propeller in position by using the cut on the shaft and the mark on the propeller 3 Remove the lead c
3. 5 OPEN 90 10 C CLOSE Measure the resistance between the terminals with a tester Outdoor fan Coil wiring temperature 10 C 40 C motor MF 00 Color of Normal an Abnormal b INNER FUSE lead wire MU A08 A10VD MU A13VD 149 3C OPEN WHT BLK 305 374 Q 189 233 Q Open or BLK RED 247 304 Q 270 332 Q short circuit A BENT 10 INNER PROTECTOR 9 DISASSEMBLY INSTRUCTIONS lt Terminal with locking mechanism Detaching points gt The terminal which has the locking mechanism can be detached as shown below There are two types Refer to 1 and 2 of the terminal with locking mechanism The terminal without locking mechanism can be detached by pulling it out Check the shape of the terminal before detaching 1 Slide the sleeve and check if there is a locking lever or not Slide the sleeve GPull the terminal while 2 The terminal with this connector has the locking mechanism Hold the sleeve and pull out the terminal pushing the locking slowly lever Connector 9 1 MU AO8VD F MU A10VD F OUTDOOR UNIT OPERATING PROCEDURE PHOTOS 1 Removing the cabinet 1 Remove the screws fixing the top panel See Photo 2 and 3 2 Remove the top panel See Photo 3 3 Remove the screw fixing the service panel See Photo 3 4 Pull down the service panel and remove it See Photo 3 5 Remove the screws fixing the cabinet
4. Be sure to turn OFF the power supply before removing the front panel the cabinet the top panel and the electronic control P C board X lt C 3 When removing the electronic control P C board hold the edge of the board with care NOT to apply stress on the components 4 When connecting or disconnecting the connectors hold the housing of the EA connector DO NOT pull the lead wires v MU A13VD 0 1 Lead wiring Housing point 8 2 Instruction of troubleshooting Indoor unit Indoor unit operates doesn t receive ae unit the signal from ales e end unit is doesn t remote controller asning onana operate Outdoor unit Outdoor unit doesn t ROO Un operates in operate operates when Henne only Test Run even in i the EMERGENCY EMERGENCY operation OPERATION OPERATION operation 1 Switch is pressed switch is pressed TE i 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 L Check room Check of 5 Refer to 1 Check indoor temperature wiring Check of outdoor ll diagram remo
5. M U A1 OVD P1 without any obstruction in front M U 1 3VD Pi and on both sides of the unit 400 Drain hole 42 ON Air in o ER 2 as Sam xd 52 oss p 52 Open two sides of left 2 holes 10X21 right or rear side Air ou E Service panel 223 28 Handle Liquid refrigerant pipe joint Refrigerant pipe flared 66 35 er o 20 9 zd eo lt 9 D i Gas refrigerant pipe joint Refrigerant pipe flared 69 52 MU A08 A10VD 69 i g E Service port Refrigerant pipe flared 612 7 MU A13VD 800 5 WIRING DIAGRAM OUTDOOR UNIT MU A08VD P1 MODEL WIRING DIAGRAM MU A10VD F g MU A13VD F P dupes WHT 3 BLK WHT Br MP SYMBOL NAME SYMBOL NAME SYMBOL NAME C1 COMPRESSOR CAPACITOR MC COMPRESSOR INNER PROTECTOR TB TERMINAL BLOCK C2 OUTDOOR FAN CAPACITOR MF OUTDOOR FAN MOTOR INNER FUSE NOTE 1 About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing 2 Use copper conductors only For field wiring 3 Symbols below indicate Terminal block Connector MU AO08VD MU A10VD F7 OUTDOOR UNIT Ul Ul Refrigerant pipe Option 9 52 with heat insulator l 7 Flared connection Flared connection Al Re
6. clamps and outdoor fan motor lead wires 4 Remove the screws fixing the outdoor fan motor 5 Remove the outdoor fan motor fan motor Set screws of the outdoor fan motor 4 Removing the compressor Photo 6 1 Remove the cabinet Refer to 1 2 Remove the relay panel 3 Remove the soundproof felt 4 Remove the terminal cover Glass Discharge 5 Pull out the lead wires from the glass terminal of the com terminal pipe pressor 6 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 kg cm OMPa 7 Disconnect the welded part of the suction pipe and dis charge pipe 8 Remove the nuts fixing the compressor and the compres sor Compressor nuts PARTS LIST 10 MU A13VD m MU A10VD F MU AO08VD F1 STRUCTURAL PARTS ELECTRICAL PARTS AND FUNCTIONAL PARTS 10 1 OUTDOOR UNIT 13 12 11 10 14 16 15 17 This figure shows MU A13VD 16 pt MU AO08VD m1 MU A10VD m1 10 1 OUTDOOR UNIT STRUCTURAL PARTS ELECTRICAL PARTS AND FUNCTIONAL PARTS Part number that is circled is not shown in the illustration Part No Part Name MU A13VD v a Symbol in Wiring Diagram Q ty unit MU A08VD MU A10VD P1 MU A13VD Remarks E
7. 02 899 232 CABINET E02 927 521 GRILLE E02 665 501 PROPELLER E02 899 290 BASE E02 900 290 BASE E02 940 900 COMPRESSOR RH135VHCC E02 899 900 COMPRESSOR RH145VHCC E02 900 900 COMPRESSOR RH207VHAC E02 075 506 COMPRESSOR RUBBER SET E02 899 661 STOP VALVE GAS E02 900 661 STOP VALVE GAS E02 899 662 STOP VALVE LIQUID E02 927 245 SERVICE PANEL E02 899 233 BACK PANEL E02 815 374 TERMINAL BLOCK E02 899 351 OUTDOOR FAN CAPACITOR 1 8uF 440VAC 900 351 OUTDOOR FAN CAPACITOR 2 04F 440VAC 665 353 COMPRESSOR CAPACITOR 25uF 450VAC 900 353 COMPRESSOR CAPACITOR SOLF 440VAC 899 293 SEPARATOR 900 293 SEPARATOR 899 515 MOTOR SUPPORT 900 515 MOTOR SUPPORT 899 523 CONDENSER NET 900 523 CONDENSER NET 927 297 TOP PANEL 899 630 OUTDOOR HEAT EXCHANGER 900 630 OUTDOOR HEAT EXCHANGER 899 301 OUTDOOR FAN MOTOR RA6V21 00 900 301 OUTDOOR FAN MOTOR RA6V33 00 746 936 CAPILLARY TUBE 3 0X 1 6X850 746 CAPILLARY TUBE d3 0X91 6X650 REFRIGERANT PIPES The air conditioner has flared connections its indoor and outdoor sides Please use the optional extension pipe a
8. Changes for the Better MITSUBISHI ELECTRIC SPLIT TYPE AIR CONDITIONERS No OB397 Wireless type Models MU A08VD MU A10VD MU A13VD CONTENTS 1 TECHNICAL CHANGES 2 2 PART NAMES AND FUNCTIONS 2 3 SPECIEICATION cnni trenes errante acis 3 I Indicat mer 4 OUTLINES AND DIMENSIONS 4 model name 5 WIRING DIAGRAM 4 MU AO08VD fF 6 REFRIGERANT SYSTEM DIAGRAM 5 MU A10VD fF 7 PERFORMANCE CURVES 6 MU A13VD mF 8 TROUBLESHOOTING nnns 8 9 DISASSEMBLY INSTRUCTIONS 11 10 PARTS aee 11 OPTIONAL NOTE This service manual describes technical data of outdoor units As for indoor units MS A08VD ie 33 MS A10VD and MS A13VD ua refer to the service manual OB396 1 TECHNICAL CHANGES MU 07UV Fa 2 MU AO8VD F Outdoor unit model has been changed Dimension has been changed 780Wx540Hx255D gt 800Wx550Hx285D Valve bed has been added 2 Compressor has been changed RH135VGCC gt RH135VHCC 3 Outdoor fan motor has been changed RA6V23 HA gt RA6V21 AC 4 5 Outdoor fan motor capacitor has been changed Com
9. D MU A13VD The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions Since operating conditions vary according to the areas where these units are installed The following information has been provided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve v A v A v A 1 GUARANTEED VOLTAGE 198 264V 50Hz 2 AIR FLOW Air flow should be set at MAX 3 MAIN READINGS 1 Indoor intake air wet bulb temperature CWB 2 Indoor outlet air wet bulb temperature CWB 3 Outdoor intake air dry bulb temperature CDB 4 Total input W Indoor air wet dry bulb temperature difference on the left side of the chart on next page shows the difference between the indoor intake air wet dry bulb temperature and the indoor outlet air wet dry bulb temperature for your reference at service pt How to measure the indoor air wet dry bulb temperature difference 1 Attach at least 2 sets of wet and dry bulb thermometers to the indoor air intake as shown in the figure and at least 2 sets of wet and dry bulb thermometers to the indoor air outlet The thermometers must be attached to the position where air speed is high 2 Attach at least 2 sets of wet and dry bulb thermometers to the outdoor air intake Cover the thermometers to prevent direct rays of the su
10. cting wire 8 Remove the screws fixing the back panel 9 Remove the back panel Screws of the top panel Photo 3 Service Screw of the service panel Direction to remove rA Hooks Screw of the cabinet 2 Removing the electrical parts 1 Remove the service panel and the cabinet Refer to 1 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB Photo 1 Screws of the panel and motor support ii HT mmm Pw N INA Screws of the cabinet Photo 2 Screws of the top panel Screws of the cabinet 4 Photo 4 Connector capacitor C1 Outdoor fan capacitor Terminal block TB OPERATING PROCEDURE PHOTOS 3 Removing propeller and the outdoor fan motor Photo 5 1 Remove the cabinet Refer to 1 Outdoor fan motor lead wires 2 Remove the propeller nut and remove the propeller Set screws of the NOTE Loose the propeller in the rotating direction for outdoor fan motor removal Relay panel When attaching the propeller align the mark on the Propeller propeller and the motor shaft cut section Set the propeller in position by using the cut on the shaft and the mark on the propeller 3 Disconnect the connector and remove the lead
11. emperature Relative humidity 96 20 50 25 60 30 70 Air flow should be set at MAX The unit of pressure has been changed to MPa on the international system of units SI unit system The conversion factor is 1 MPa Gauge 210 2 kgf czr Gauge MU AO8VD F1 MU AO8VD F1 kgf cm Gauge MPa Gauge MU A10VD MU A10VD mF 0 9 9 0 0 8 8 0 3 d 07 S 5 7 0 a 2 0 6 z MEN 5 9 0 5 6 5 0 0 4 4 0 15 20 25 30 85 C 15 20 25 30 85 C 50 60 70 96 50 60 70 96 Ambient temperature C Ambient humidity 96 Ambient temperature C Ambient humidity 96 Gauge MPa Gauge MU A13VD m1 MU A13VD F1 7 0 220V 9 60 E 5 2 ea 2 z 5 0 S 2 i 8 E 4 0 3 3 0 15 50 60 70 Ambient temperature C Ambient humidity 96 Ambient temperature C Ambient humidity 96 8 TROUBLESHOOTING MU AO8VD rm MU A10VD 8 1 Cautions on troubleshooting 1 Before troubleshooting check the following 1 Check the power supply voltage 2 Check the indoor outdoor connecting wire for mis wiring 2 Take care the following during servicing 1 Before servicing the air conditioner be sure to turn off the main unit first with the remote controller and then after con firming the horizontal vane is closed turn off the breaker and or disconnect the power plug 2
12. frigerant pipe Option 6 35 with heat insulator MU A13VD F1 OUTDOOR UNIT Refrigerant pipe Option d12 7 with heat insulator Flared connection Flared connection ol Refrigerant pipe Option 6 35 with heat insulator Stop valve 6 REFRIGERANT SYSTEM DIAGRAM Unit mm Stop valve with service port Outdoor heat exchanger Compressor Strainer 100 Stop valve Capillary tube 3 0 x 1 6 x 850 Refrigerant flow in cooling Stop valve with service port Outdoor heat exchanger Strainer 100 Compressor Capillary tube 3 0 x 61 6x650 Refrigerant flow in cooling MAX REFRIGERANT PIPING LENGTH Refrigerant piping m Piping size O D mm Model Max length Max height A B Gas Liquid MU AO08VD 3 20 10 9 52 MU A10VD 46 35 MU A13VD 20 10 12 7 MAX HEIGHT DIFFERENCE Indoor unit Max Height B Refrigerant Piping Max Length A S Outdoor unit ADDITIONAL REFRIGERANT CHARGE R22 g Refrigerant piping length one way Model Outdoor unit precharged 10m 15m MU AO08VD MU A10VD 550 45 120 MU A13VD 1050 45 120 NOTE Calculation Xg 15g m X Refrigerant piping length m 7 7 PERFORMANCE CURVES MU AO08VD MU A10V
13. lamps and outdoor fan motor lead wires 4 Remove the screws fixing the outdoor fan motor 5 Remove the outdoor fan motor Photo 5 Set screws of the outdoor fan motor Outdoor fan motor lead wires Hook Relay panel Propeller nut fan motor Set screws of the outdoor fan motor Cc OPERATING PROCEDURE PHOTOS 4 Removing the compressor Remove the cabinet Refer to 1 Photo 6 Discharge pipe Remove the soundproof felt 1 2 Suction pipe 3 Remove the screws fixing the relay panel 4 S Remove the terminal cover Pull out the lead wires from the glass terminal of the com pressor 6 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 kg cm OMPa 7 Disconnect the welded part of the suction pipe and discharge pipe 8 Remove the nuts fixing the compressor N 9 Remove the compressor Glass terminal Compressor Compressor nuts Oooo SOS v 1 9 2 MU A13VD OUTDOOR UNIT OPERATING PROCEDURE PHOTOS 1 Removing the cabinet 1 Remove the screws fixing the top panel See Photo 2 and 3 2 Remove the top panel See Photo 3 3 Remove the screw fixing the service panel See Photo 3 4 Pull down the service panel and remove it See Photo 3 5 Remove the screws fixing the cabinet 6 Remove the cabinet 7 Disconnect the indoor outdoor conne
14. n 3 Check that the air filter is cleaned 4 Open windows and doors of the room 5 Press the EMERGENCY OPERATION switch once to start the EMERGENCY COOL MODE 6 When system stabilizes after more than 15 minutes measure temperature and take an average temperature 7 10 minutes later measure temperature again and check that the temperature does not change INDOOR UNIT OUTDOOR UNIT Wet and dry bulb thermometers Wet and dry bulb thermometers FRONT VIEW BACK VIEW Cooling capacity Total input cooling 7 07 11 27 14 1 4 a 6 54102 13 Indoor intake air WB temperature 43 Indoor intake air WB temperature C 994 931 12 26 12 g 26 24 22 5 5 47 841 811 24 9 14 20 E 2 S 18 E 48 75 10 22 510 43L 67 BUS 9 18 E hi 27 3p 35 40 43 27 30 35 40 43 ci a e A Outdoor intake air DB temperature C Outdoor intake air DB temperature 2 gt gt gt gt gt gt c 4455 xa o 202 o2 2222 22 OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT COOL operation Both indoor and outdoor units are under the same temperature humidity condition Dry bulb t
15. pressor capacitor has been changed MU 10UV P0 gt MU A10VD m Outdoor unit model has been changed Dimension has been changed 780Wx540Hx255D 800Wx550Hx285D Valve bed has been added 2 Compressor has been changed RH165VGCC RH145VHCC 3 Outdoor fan motor has been changed RA6V23 HA gt RA6V21 AC 4 5 Outdoor fan motor capacitor has been changed Compressor capacitor has been changed MU 13UV P0 gt MU A13VD m Outdoor unit model has been changed Dimension has been changed 780Wx540Hx255D gt 800Wx550Hx285D Valve bed has been added Compressor has been changed RH231VHAC gt RH207VHAC Outdoor fan motor has been changed RA6V33 FA gt RA6V33 KA Outdoor fan motor capacitor has been changed Compressor capacitor has been changed RON 2 PART NAMES AND FUNCTIONS OUTDOOR UNIT MU A08VD F MU A10VD FP MU A13VD F Air inlet back Drain hose SSS lt L FCCCCCCCCCCeTC UI Drain outlet Outdoor model MU AO8VD MU A10VD 3 SPECIFICATION MU A13VD Function Cooling Power supply Single phase 220 230 240V 50Hz Capacity 2 75 2 75 2 75 3 7 3 7 3 7 Dehumidification 23 2 3 2 3 1 0 1 2 1 7 Capacity Air flow
16. s follows Model Part No Pipe length Pipe size O D mm in Cross section A Gas B Liquid Insulation D 11 OPTIONAL PARTS Additional refrigerant charge R22 9 MU A08VD MU A10VD MAC MS0905F 5m MU A13VD MAC MF1305F 5m B 9 52 3 8 12 7 1 2 6 35 1 4 p27 21 31 27 Mir SLIM s MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN Copyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO LTD New publication effective Mar 2005 Distributed in Mar 2005 No OB397 106 Specifications subject to change without notice Made in Japan
17. te controller connecting wire ed poi of outdoor and receiver 2 Refer to diagram and unit P C board rbd of voltage electronic control P C board As for indoor unit Both lamps Left lamp Left lamp Left lamp refer to service Left and right 2 time flash 3 time flash 4 time flash manual OB396 i Flash on and off at Cause C Cause 0 5 second intervals Ind it POLUM ME Cause naoor uni Indoor unit Indoor unit Indoor unit Trouble of Trouble of The horizontal vanes ind P il indoor fan indoor control are not installed i ODE co motor system correctly thermistor Refer to Check of Check room t iren installation of the temperature door horizontal vane thermistor and SIENTO indoor coil thermistor motor control P C Refer to board i Test point diagram i and voltage 8 3 Trouble criterion of main parts MU AO08VD F1 MU A10VD F1 MU A13VD F1 Part name Check method and criterion Figure Compressor Measure the resistance between the terminals with a tester MC Coil wiring temperature 10 C 40 C INNER Color of Normal Ab normal PROTECTOR lead wire MU A08VD MU A10VD MU A13VD woe ecopen CR 30 4510 30 4350 20 280 Open or 90 10C CLOSE C S 5 0 6 229 5 0 6 160 3 0 4 250 short circuit MU A13VD 155
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