C1 MU-GD18ND- - MyLinkDrive ?· 3 Outdoor model MU-GD15ND-C1 MU-GD18ND-C1 MU-GD24ND-C1Funtion Cooling…

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  • SERVICE MANUAL

    Wireless typeModels

    No. TBH017

    OUTDOOR UNIT

    Indoor unit service manualMS-GDND Series (TBH015)

    MU-GD15ND- C1MU-GD18ND- C1MU-GD24ND- C1

    MU-GD15ND- C1MU-GD18ND- C1

    TECHNICAL CHANGES.....................................PART NAMES AND FUNCTIONS......................SPECIFICATION................................................OUTLINES AND DIMENSIONS.........................WIRING DIAGRAM............................................REFRIGERANT SYSTEM DIAGRAM................PERFORMANCE CURVES...............................TROUBLESHOOTING.......................................DISASSEMBLY INSTRUCTIONS.....................

    2334579

    1216

    1.2.3.4.5.6.7.8.9.

    CONTENTS

    PARTS CATALOG (TBB017)

    NOTE: RoHS compliant products have mark on the spec name plate.

  • 2

    TECHNICAL CHANGES 1

    MU-A15ND- C1 MU-GD15ND- C1

    MU-A18ND- S1 MU-GD18ND- C1

    1. Outdoor unit model has been changed. Dimension has been changed. (850Wx605Hx290D 800Wx550Hx285D)

    2. Compressor has been changed. (RH207NRAT RH189NRAT) 3. Outdoor fan motor has been changed. (RA6V60-MA RA6V33-MC) 4. Compressor capacitor has been changed. 5. Fan motor capacitor has been changed. 6. Condenser has been changed.

    1. Outdoor unit model has been changed. Dimension has been changed. (850Wx605Hx290D 800Wx550Hx285D)

    2. Outdoor fan motor has been changed. (RA6V60-MA RA6V33-MC) 3. Compressor capacitor has been changed. 4. Condenser has been changed.

    MU-A24ND- S1 MU-GD24ND- C11. Compressor has been changed. (PH33NPBT PH36NPBT) 2. Outdoor fan motor has been changed. (RA6N75-BA RA6V85-CA) 3. Fan motor capacitor has been changed. 4. Condenser has been changed.

  • 3

    Outdoor model MU-GD15ND- C1 MU-GD18ND- C1 MU-GD24ND- C1Funtion Cooling

    Power supply Single phase 220-230V, 60Hz

    Capa

    city Capacity kW 4.1-4.1 5.0-5.0 6.6-6.6

    Dehumidification R/h 0.43 1.2 2.4 Air flow K/h 2,106-2,124 2,772-2,892

    Elec

    trica

    l dat

    a

    Power outlet A 15 15 20 Running current (total) A 6.0-6.0 8.3-8.3 11.1-11.1 Power input (total) W 1,280-1,280 1,765-1,770 2,375-2,375 Power factor (total) % 97-93 97-93 97-93 Starting current A 40.0 45.0 67.0 Compressor motor current A 5.26-5.25 7.56-7.55 10.17-10.15 Fan motor current A 0.37-0.38 0.37-0.38 0.56-0.58

    Coefficient of performance (C.O.P) 3.20-3.20 2.83-2.82 2.78-2.78

    Com

    pres

    sor Model RH189NRAT RH247NRAT PH36NPBT

    Output W 900 1,200 1,600

    Winding resistance (at 20C) "

    C-R 1.50 C-S 2.33

    C-R 1.43 C-S 2.06

    C-R 0.76 C-S 1.88

    Fan

    m

    otor

    Model RA6V33-MC RA6V85-CA Winding resistance (at 20C) "

    WHT-BLK 141 BLK-RED 175

    WHT-BLK 86 BLK-RED 92

    Dimensions WxHxD mm 800 x 550 x 285 840 x 850 x 330 Weight kg 35 34 61

    Spec

    ial

    rem

    arks

    Sound level dB 52-52 54-54 54-54 Fan speed rpm 980-990 750-780 Fan speed regulator 1 Refrigerant filling capacity (R22) kg 1.25 1.40 1.65

    Refrigeration oil (Model) cc 520 (NM56) 900 (NM56)

    2

    MU-GD15ND MU-GD18ND

    MU-GD24ND

    SPECIFICATION 3

    OUTDOOR UNIT

    PART NAMES AND FUNCTIONS

    NOTE: Test conditions are based on CNS 14464 Cooling : Indoor Dry-bulb temperature 27C Wet-bulb temperature 19C Outdoor Dry-bulb temperature 35C Wet-bulb temperature 24C Refrigerant piping length(one way) 7.5 m

  • 4

    4

    MU-GD15ND MU-GD18ND

    MU-GD24NDOUTDOOR UNIT

    OUTDOOR UNIT

    OUTLINES AND DIMENSIONS

    ( MU-GD15ND- C1 )( MU-GD18ND- C1 )

    Unit : mm

    Unit : mm

  • 5

    5

    MU-GD15NDOUTDOOR UNIT

    MU-GD18NDOUTDOOR UNIT

    WIRING DIAGRAM

  • 6

    MU-GD24NDOUTDOOR UNIT

  • 7

    6 REFRIGERANT SYSTEM DIAGRAM

    MU-GD15ND MU-GD18NDOUTDOOR UNIT

    MU-GD24NDOUTDOOR UNIT

    ( MU-GD15ND- C1 ) ( MU-GD18ND- C1 )

    MU-GD15ND- C1 ({3.0x{1.8x700)MU-GD18ND- C1 ({3.0x{1.8x450)

    ({3.0x{2.0x300)

  • 8

    MU-GD15ND- C1

    MU-GD18ND- C1

    MU-GD24ND- C1

    MU-GD15ND- C1

    MU-GD18ND- C1

    MU-GD24ND- C1

  • 9

    7 PERFORMANCE CURVES

    MU-GD15ND MU-GD18ND MU-GD24NDMS

    -GD1

    5ND-

    C1

    MU-G

    D15N

    D-C

    1MS

    -GD1

    8ND-

    C1

    MU-G

    D18N

    D-C

    1MS

    -GD2

    4ND-

    C1

    MU-G

    D24N

    D-C

    1

  • 10

    MU-GD15ND

    MU-GD18ND

    MU-GD15ND

    MU-GD18ND

  • 11

    MU-GD24ND MU-GD24ND

  • 12

    TROUBLESHOOTING 8

    MU-GD15ND MU-GD18ND MU-GD24ND

  • 13

    8-2. Instruction of troubleshooting

  • 14

    MU-GD15ND MU-GD18ND MU-GD24ND

    8-3. Trouble criterion of main parts

    MU-GD15/GD18ND- C1126i2C OPEN

    Color of lead wire

    Normal MU-GD15ND- C1 MU-GD18ND- C1 MU-GD24ND- C1

    C R 1.32 " ~ 1.62 " 1.26 " ~ 1.55 " 0.67 " ~ 0.82 " C S 2.05 " ~ 2.52 " 1.81 " ~ 2.23 " 1.65 " ~ 2.03 "

    Color of lead wire

    Normal MU-GD15/GD18ND- C1

    WHT-BLK 124 " ~ 153 " BLK-RED 154 " ~ 189 "

    Color of lead wire

    Normal MU-GD24ND- C1

    WHT-BLK 75 " ~ 93 " BLK-RED 81 " ~ 100 "

  • 15

    Compressor and / or outdoor fan motor doesnt stop.

    8-4. Troubleshooting flow

  • 16

    DISASSEMBLY INSTRUCTIONS 9

    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 connecting wire.(8) Remove the screws fixing the back panel.(9) Remove the back panel.

    Photo 1

    Screws of the cabinet

    Screws of the front panel and motor support

    Photo 3 Screws of thetop panel

    Servicepanel

    Screw of thecabinet

    Directionto remove

    Hooks

    Screw of theservice panel

    Screws ofthe cabinet

    Photo 2

    Screws of thetop panel

    MU-GD15NDMU-GD18ND

    9-1.

    OUTDOOR UNIT

  • 17

    PHOTOS

    Photo 6

    Photo 5

    OPERATING PROCEDURE

    3. Removing propeller and the outdoor fan motor(1) Remove the cabinet. (Refer to 1.)(2) Remove the propeller nut and remove 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 theshaft and the mark on the propeller.

    (3) Disconnect the connector and remove the lead clamps andoutdoor fan motor lead wires.

    (4) Remove the screws fixing the outdoor fan motor.(5) Remove the outdoor fan motor.

    4. Removing the compressor(1) Remove the cabinet. (Refer to 1.)(2) Remove the relay panel.(3) Remove the soundproof felt.(4) Remove the terminal cover.(5) 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/cm2 (0MPa).(7) Disconnect the welded part of the suction pipe and dis-

    charge pipe.(8) Remove the nuts fixing the compressor and the compres-

    sor.

    Glassterminal

    Dischargepipe

    Suctionpipe

    Compressor nuts(3 places)

    Compressor

    Propeller

    Propellernut

    Outdoorfan motor

    Set screws of theoutdoor fan motor Hook

    Relay panel

    Outdoor fan motor lead wires

    Set screws of theoutdoor fan motor

  • 18

  • 19

    MU-GD24ND9-2. OUTDOOR UNIT

  • 20

  • HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

    New publication, effective Apr. 2008Specifications subject to change without notice.

    MITSUBISHI ELECTRIC CONSUMER PRODUCTS (THAILAND) CO., LTD.AMATA NAKORN INDUSTRIAL ESTATE700/406 MOO 7, TAMBON DON HUA ROH,AMPHUR MUANG, CHONBURI 20000 THAILANDMade in Thailand

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