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Panasonic Cs W34bd2p Cs W43bd2p Series Repair Manual

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    							 1 SERVICE INFORMATION 2
     2 FEATURES 
    3
     3 SPECIFICATION (HEAT PUMP TYPE) 
    9
     4 SPECIFICATION (COOLING ONLY TYPE) 
    14
     5 TECHNICAL DRAWING 
    20
     6 CIRCUITDIAGRAM 
    26
     7 OPERATING INSTRUCTION 
    42
     8 REFRIGERATION CYCLE 
    44
     9 OPERATIO N RANGE 
    47
     10  PIPE LENGTH 
    48
     11  OPERATING CHARACTERISTIC 
    50
     12  FAN PERFORMANCE 
    51
     13  SAFETYDEVICE 
    54
     14  COMPONENT SPECIFICATION 
    55
    © 2002 Matsushita Air-Conditioning Corp. Sdn. Bhd.
    (183914D). All rights reserved. Unauthorized copying
    and distribution is a violation of law.
    CS-W24BD2P CU-W24BBP5
    CS-W28BD2P CU-W28BBP5
    CS-W28BD2P CU-W28BBP8
    CS-W34BD2P CU-W34BBP8
    CS-W43BD2P CU-W43BBP8
    CS-W24BD2P CU-V24BBP5
    CS-W24BD2P CU-V24BBP8
    CS-W28BD2P CU-V28BBP5
    CS-W28BD2P CU-V28BBP8
    CS-W34BD2P CU-V34BBP8
    CS-W43BD2P CU-V43BBP8
     15  CAPACITY AND POWERCONSUMPTION 57
     16  DISCHARGE AND SUCTION PRESSURE 
    60
     17  SOUNDDATA 
    61
     18  TWIN OPERATIO N 
    66
     19  WIRING MISTAKE PREVENTION 
    71
     20  TEST OPERATIO N AND SELF DIAGNOSIS 
    72
     21  SETTING OF SAVEENERGY AND THERMISTOR SWITCH 
    76
     22  GROUP CONTROL 
    77
     23  TROUBLE SHOOTING  
    78
     24  EMERGENCY OPERATIO N 
    84
     25  CONTROL 
    85
     26  INSTALLA TION (INDOOR UNIT) 
    96
     27  INSTALLA TION (OUTDOOR UNIT) 
    108
     28  REPLACEMENT PARTS 
    120
    AIR CONDITIONER
    CONTENTS
     Page  Page
    ORDER NO. MAC0201010C2 
    						
    							1 SERVICE INFORMATION
    Notice of Address setting for NEW Cassette / NEW Outdoor Unit.
    The new Ceiling / New Outdoor models are possible to have address setting fortwin / triplecontrol or group control by
    automatic when main powersupply is switched on.
    (Manual address setting is also possible by using Dip switch on Indoor unit P.C. board.) However,this address setting isonly
    possible when made proper wiring connection and also Indoor unit should be original virgin unit
    .
    1.1. Example of trouble at test operation
    If found out as following phenomenon at test operation on site, it may have possibility of wrong address setting.
    Theref ore, please ensure of the address setting.
     1. LCD display of wiredremote control had not illuminate although the main powersupply switch is ‘on’.
     2. LCD display had indicated as normal illumination when power supply switch is ‘on’, however outdoo r unit cannot be operated.
    (But, it is necessary to take 3 to 5 minutes for outdoor unit to start from the timing of remote control ON/OFF switch is ‘on’.)
     3. P.C. board had memorized wrong setting information.
     a. If main power supply is switched ‘on’ with the wrong connection.
     b. Whenchanging the connection or combination of units due to re-installation etc.
     
        • 
    • •  • 
    W hen changing the system from twin to triple (triple to twin).
     
        • 
    • •  • 
    W hen changing the system from group control to normal one to one system.
     
        • 
    • •  • 
    W hen making the replacement of units as master and slave etc.
    1.2. Caution of test operation
    Do not touch the remote control switch and do not change any wirings for one minute when the main powersupply switch is ‘on’.
    (Because the unit is having automatic address setting during the first one minute.)
    1.3. Caution during automatic address setting
    When mainpower supply switch is ‘on’, the P.C. board willautomatically memorized the connecting system.
    Consequently , when initial power supply is ‘on’, there will not be interchangeability of units even of the same type and same
    capacity unit. Theref ore unable to connect the unit to anothe r system.
    2 
    						
    							2.1. Variety of excellent features
    2.1.1. Compact design
     
        • 
    • •  • 
    The height is only 29cm (2.5 HP model and 3 HP model)
    and can be installe d even where the space is limited.
    2.1.2. Automatic restart function
     
        • 
    • •  • 
    W hen the electric power comes back after a power failure,
    the unit itself automatically restarts the operation in the pre-
    failure mode.
    2.1.3. Auto fanmode (indoor unit)
     
        • 
    • •  • 
    Auto fan mode is added beside s Hi, Me and Lo.
    It automatically adjusts the fan speed according to the
    indoor temperature.
    2.1.4. Dry mode function
     
        • 
    • •  • 
    Dry mode can make a comfortable indoor environment
    during wet season.
    2.1.5. Quiet operation
     
        • 
    • •  • 
    The sound level is as low as 42db (A) for 3 HP model and
    suitable for offices , shops, homes etc., where quiet
    operation is essential.
    2.1.6. Low ambient cooling operation
     
        • 
    • •  • 
    Cooling is possible to temperature as low as -5°C
    2.1.7. Automatic changeover function
    (heat pump models)
     
        • 
    • •  • 
    The unit automatically switches between cooling and
    heating in accordance with operating load in order to
    maintain a comfortable indoor temperature.
    2.1.8. Hot start system
    (heat pump model)
    2 FEATURES
    3 
    						
    							[Product features]
    2.2.1. Low-noise design improves in
    surrounding areas
     1. The noise-suppressing winglet fan is a result of new
    research into vane design theory. The unique curved shape
    suppresses the generation of vortexes, thus reduces air
    flow noise.
     2. The adoption of double -orifice rings reduces air passage
    resistance.
     3. Strengthening of the noise insulation materials in the
    compressor and the sealing-in of mechanical noise allows
    vibration noise to be greatly enclosed and suppressed.
     4. The heat exchan ger has an L-shaped design to allow air to
    flow more smoothly.
     5. Noise is automatically reduced further during night time
    operation with lower outdoor air temperatures.
    2.2.2. Automatic restart function
    When theelectric power resumes after a power failure, the unit
    will automatically restarts the operation in the pre-failure mode.
    2.2.3. Low ambient cooling operation
    Cooling operation is possible at outdoor temperature of -5°C.
    2.2. New low-noise outdoor units
    2.3. Greatly improved workability increases system renewal capability
    4 
    						
    							2.3.1. Pipes that are one size larger can
    also be connected for renewal
     
        • 
    • •  • 
    If renewing the system, existing refrigerant pipes can be
    utilized so that only the indoor units need to be replaced.
     
        • 
    • •  • 
    For example, liquid and gas pipesfrom 10years ago can be
    connected to current pipes with the same size for one size
    larger. Effective utilization of materials reduces working
    time and trouble. (Adaptor sockets are not supplie d.)
    2.3.2. Additional refrigerant charging
    unnecessary for 30 m
     
        • 
    • •  • 
    All models do not require any additio nal charging of
    refrigerant for 30 m of pipe length. This makes installa tion
    much easier.
    2.3.3. Drain water dripping-prevention
    structure
     
        • 
    • •  • 
    The base of the outdoo r unit is provided with a single drain
    hole in order to prevent drain water from leaking out of the
    unit. Body connecting a drain elbow and a discharge pipe,
    water leakages can be prevented even when the unit is
    installe d against a wall.
    2.3.4. Space saving design allows units
    to be installed side by side
    continuously
     
        • 
    • •  • 
    Servicing after installa tion can be carried-out by removing
    the front covers.
    2.3.5. Easy test operation
     
        • 
    • •  • 
    Test operation can be carried out for both indoor and
    outdoor units.
    2.3.6. Long pipe design
    Max piping length: 50 (m)24BB~43BB
    Height difference/equivalent pipe length30/50
    2.3.7. Internal pipe connection
     
        • 
    • •  • 
    Pipes are connected inside the units (inside the side
    covers), making the final appearance more attractive.
     
        • 
    • •  • 
    Pipes can be diverted outward in any of four directions
    (forward, right, down, rear).
     
        • 
    • •  • 
    Small liquid pipe diameters of 9.52mm for 43BB model,
    making installa tion work much easier.
    
     
    Liquid-side pipe diameters (mm): 9.52 (43BB~50BB
    models)
    2.3.8. Centralized draining method
     
        • 
    • •  • 
    Even when multiple outdoo r units are installe d to a wall, the
    drain outlets can be concentrated into a single drain pipe.
    This makes installa tion easier and also improve
    appearance.
    2.4. A brand-new control method
    using the latest in technology
    2.4.1. Powersupplywiring is also easier
    Power supply wiring and other wiring tasks can be carried out
    more easily.
     
        • 
    • •  • 
    Twin non-polar wires used to connect indoor and outdoo r
    units.
     
        • 
    • •  • 
    Adoption of connection error prevention circuits for drives
    wires and signal wires. If a connection error is made, the
    relay does not operate and current does not flow to the
    circuit boards.
    5 
    						
    							2.4.2. Separate indoor/outdoor unit
    power supplies
    The power supply can be connected to (1) just the outdoo r
    units, or (2) to both indoor and outdoor units.
    2.4.5. Twin operation
     
        • 
    • •  • 
    Simultaneous air conditioning of wide spaces and corners is
    possible. Indoor units of different horsepowers and models
    can even be used in combination.
     
        • 
    • •  • 
    Master unit and slave-units can be set automatically in twin
    systems. No address setting is necessary.
     
        • 
    • •  • 
    Multiple indoor units can be operated simultaneousl y with a
    single remote control. Note that individual operation is not
    possible.
    2.4.3. Automatic settinginitialization
    function (Remote control and
    Indoor unit)
    In accordance with the indoor and outdoor units connected and
    the connection methods, conditions such as the configuration
    (twin or triple format) and remote-control functions such as
    cooling only or heat pump model are automatically detected
    and set instantly.
    2.5. New refrigerant Series [R407C]
    pipe installation
    2.5.1. Procedure
     
        • 
    • •  • 
    The new refrigerant (R407C) has a different composition to
    the previously-used refrigerant (R22), so some contents
    and method of pipe installa tion and charging work are
    different from before. Care should be taken whencarrying
    out this work.
    2.5.2. Installation and precautions
    2.5.2.1. Before installation
     1. Determine the installa tion division.
     2. Check the refrigerant to be used.
     
        • 
    • •  • 
    Check that the refrigerant is R407C .
     
        • 
    • •  • 
    Check that the gauge pressure is at a maximum of 3.3
    MPa.
     3. Make a drawing of the Installation.
    2.5.2.2. Installation
     1. Install the sleeve and the insert.
     2. Install the indoor unit.
     3. Install the refrigerant piping.
     
        • 
    • •  • 
    Pipe materials
     
        • 
    • •  • 
    Refrigerant pipes which were previously used to carry
    R22 must not be re-used. If replacing the indoor and
    outdoo r units, be sure to replace all refrigerant pipes
    also.
     
        • 
    • •  • 
    Check the pipe thickness.
     
        • 
    • •  • 
    Clean the inside of the pipes.
    2.4.4. Group control equipment
    6 
    						
    							 
        • 
    • •  • 
    W hen storing pipes, seal both ends of the pipes and
    store them indoors to prevent water, dust and other
    foreign particles from getting inside.
     
        • 
    • •  • 
    Take care not to let any foreign particles (oxide scales,
    water or dirt) get inside the refrigerant lines (same as for
    R22).
    
    Refrigerant pipe storing
    LocationInstallation periodStoring method
    Outdoors1 month or morePinching
    Less than 1 monthPinching or taping
    IndoorsAny
     
        • 
    • •  • 
    Pinching method
    Close off the ends of the pipes with pliers or similar tool
    and seal the openin g by brazing.
     
        • 
    • •  • 
    Taping method
    Wind PVCtape around the ends of the pipes to seal the
    openin gs.
     
        • 
    • •  • 
    Do not work for refrigerant piping on outdoo r on rainy
    days.
     
        • 
    • •  • 
    Seal by brazing.
     
        • 
    • •  • 
    Be sure to use only a non-oxidizing brazing material.
    (Use nitrogen. Anti-oxidants cannot be used.)
     
        • 
    • •  • 
    W hen brazing pipes together, or when brazing copper
    pipes and copper joints, use a brazing material (Bcup-3)
    which does not require flux.
     
        • 
    • •  • 
    Flare processing and ester oil.
     
        • 
    • •  • 
    Sealing can be improved by applyin g ester oil or mineral
    oil (the minimum amoun t necessary) to flares and flange
    connections.
     
        • 
    • •  • 
    Due to the high hygroscopic tenden cy for ester oil, do
    not mix or use any other impurities. (This can cause
    deterioration of the compressor oil and problems with
    the compressor.)
     
        • 
    • •  • 
    After preparing the refrigerant pipes, close both ends of
    the pipes by brazing if not immediately connectingthem.
     
        • 
    • •  • 
    A torque wrench must be used.
     4. Install the drain pipe.
     5. Install the ducts. 6. Insulate against heat.
     7. Carry out the electrical work.
     
        • 
    • •  • 
    Connecting cables and power cables.
     8. Make all necessary settings.
     9. Prepare the outdoor unit foundation.
     10. Install the outdoor unit.
     11. Air-tightness test.
    For the final check, there should be no pressure drop when
    3.3 MPa is applied for 24 hours.
     12. Vacuum drying.
    Vacuum draw time60 min. or more
    * Vacuum pump capacity 60 l/min. or higher
     
        • 
    • •  • 
    Drawing the vacuum will remove any moisture.
     
        • 
    • •  • 
    The pressure after vacuum drawing should be 755
    mmHg or less.
     
        • 
    • •  • 
    Use a special vacuum pump (with backflow-prevention
    mechanism).
     
        • 
    • •  • 
    Gas must never be used for air purging.
     13. Additio nal refrigerant charging.
     
        • 
    • •  • 
    Check that refrigerant volume is correct.
     
        • 
    • •  • 
    Be sure to charge refrigerant in liquid state.
     
        • 
    • •  • 
    Always charge in liquid state.
    When therefrigerant is charged from thecylinde r, the
    composition may change greatly (compounds which do
    not easily evaporate may remain inside the cylinde r), so
    the refrigerant must always be charged in a liquid state.
    (It is recommended that a manifo ld with sight glass be
    used.)
    
    Boiling point at normal atmospheric pressure
    (reference)
    RefrigerantHFC32HFC125HFC134a
    Boiling point-52°C-49°C-26°C
     
        • 
    • •  • 
    Use a special gauge manifo ld and charging hose.
     
        • 
    • •  • 
    If refrigerant leaks occur, replace all of the refrigerant
    (same as for R22).
     
        • 
    • •  • 
    Note that a R22 leak detector cannot be use to detect
    leaks.
     
        • 
    • •  • 
    Refer to the Installation Instructions include d for the
    correct charging amoun t.
     
        • 
    • •  • 
    Make a note of additio nal refrigerant charging amoun ts
    in the record table.
    7 
    						
    							 14. Test operation and adjustment.
     15. Organize documentatio n before handover.
     16. Hando ver and explan ation of operation.
     
        • 
    • •  • 
    Ventilation of closed rooms
    R407C is a non-fla mmable refrigerant with low toxicity ,but in the gas state its specific gravity is heavier than
    that of air, and so if leaks occur in a closed room,
    suffoca tion may occur. Toxic gases may also be
    generated if it comes into direct contact with flames, so
    adequate ventilation must be provided.
    8 
    						
    							3 SPECIFICATION (HEAT PUMP TYPE)
    3.1. CS-W24BD2P / CU-W24BBP5
    ITEM / MODELIndoor UnitOutdoor unit
    Main BodyCS-W24BD2PCU-W24BBP5
    Cooling CapacitykW6.30
    (BTU/h)(21,500)
    Heating CapacitykW7.10
    (BTU/h)(24,200)
    Refrigerant Charge-lessm30
    Standard Air Volume for High Speedm3/minHi 18
    cfmHi 636
    External Static PressuremmAqHi 10-
    PaHi 98
    Air InletBackward SuctionBack sided Suction
    Air OutletFront blow-outFront blow-out
    Outside Dimension (H x W x D)mm290 x (1000 + 100) x 500900 x 900 x 320
    Net Weightkg (lbs)43 (95)81 (179)
    Piping
    ConnectionRefrigerantGasmm (inch)O.D Ø 15.88 (5/8) Flared Type
    Liquidmm (inch)O.D Ø 6.35 (1/4) Flared Type
    DrainmmFemale screw RC1 (PT1)I.DØ 20 x 1
    CompressorType, Number of Set-Hermetic-1 (Rotary), 1
    Starting Method-Direct on-line starting
    MotorType-2-pole single phase induction motor
    Rated OutputkW-1.9
    FanType, Number of SetSirocco fanProp. fan
    Air Volume ControlThree-Step and Auto mode-
    (Remote Control)
    MotorType4-pole single phase induction motor6-pole single phase induction motor
    Rated OutputkW0.150.05
    Air-heat ExchangerLouvre-fin typeX-Louvre-fintype
    Refrigerant ControlCapillary tubeCapillary tube
    Refrigerant Oil (Charged)L-MEL56 (1.3)
    Refrigerant (Charged)kg (oz)-R407C 2.8 (99)
    Running
    AdjustmentControl SwitchWired RemoteControl-
    Room Temperatu reThermosta t (Main Body)-
    Safety DevicesInternal protector for compressor, Internal thermostat for F.M, Crankcase
    heater, High pressure switch, Current Transformer
    Noise LeveldB (A)Hi 40 Lo 36Cooling 52, Heating 53
    Power level dBHi 55 Lo 51Cooling 65, Heating 66
     1. Coolin g capacities are based on indoor temp. 27°C D.B. (80.6°F D.B.), 19.0°CW.B.(66.2°F W.B.) and outdoor air temp. 35°C
    D.B. (95°F D.B.), 24°CW.B.(75.2°F W.B.)
     2. Heating capacities are based on indoor temp. 20°C D.B. (68.0°F D.B.) and outdoor air temp. 7°C D.B. (44.6°F D.B.), 6°CW.B.
    (42.8°F D.B.)
    ELECTRICAL DATA (50Hz)
    MODEL / ITEMCS-W24BD2P/CU-W24BBP5
    Condition by JIS B 8615
    VoltsV220230240
    PhaseSingleSingleSingle
    Input PowerkWCool2.562.562.56
    Heat2.602.602.60
    Running CurrentACool11.711.210.8
    Heat11.911.410.9
    Starting CurrentA646668
    Power Factor%Cool999999
    Heat999999
    *Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor.
    PanasonicPower sourceAC, 1~220V, 230V, 240V 50Hz
    9 
    						
    							3.2. CS-W28BD2P / CU-W28BBP5
    ITEM / MODELIndoor UnitOutdoor unit
    Main BodyCS-W28BD2PCU-W28BBP5
    Cooling CapacitykW7.10
    (BTU/h)(24,200)
    Heating CapacitykW8.00
    (BTU/h)(27,300)
    Refrigerant Charge-lessm30
    Standard Air Volume for High Speedm3/minHi 20
    cfmHi 706
    External Static PressuremmAqHi 10-
    PaHi 98
    Air InletBackward SuctionBack sided Suction
    Air OutletFront blow-outFront blow-out
    Outside Dimension (H x W x D)mm290 x (1000 + 100) x 500900 x 900 x 320
    Net Weightkg (lbs)43 (95)81 (181)
    Piping ConnectionRefrigerantGasmm (inch)O.D Ø 15.88 (5/8) Flared Type
    Liquidmm (inch)O.D Ø 9.52 (3/8) Flared Type
    DrainmmFemale screw RC1 (PT1)I.DØ 20 x 1
    CompressorType, Number of Set-Hermetic-1 (Rotary), 1
    Starting Method-Direct on-line starting
    MotorType-2-pole single phase induction motor
    Rated OutputkW-2.0
    FanType, Number of SetSirocco fanProp. fan
    Air Volume ControlThree-Step and Auto mode-
    (Remote Control)
    MotorType4-pole single phase induction motor6-pole single phase induction motor
    Rated OutputkW0.150.05
    Air-heat ExchangerLouvre-fin typeX-Louvre-fintype
    Refrigerant ControlCapillary tubeCapillary tube
    Refrigerant Oil (Charged)L-MEL56 (1.3)
    Refrigerant (Charged)kg (oz)-R407C 3.3 (116)
    Running
    AdjustmentControl SwitchWired RemoteControl-
    Room Temperatu reThermosta t (Main Body)-
    Safety DevicesInternal protector for compressor, Internal thermostat for F.M, Crankcase
    heater, High pressure switch, Current Transformer
    Noise LeveldB (A)Hi 41 Lo 37Cooling 53, Heating 54
    Power level dBHi 56 Lo 52Cooling 66, Heating 67
     1. Coolin g capacities are based on indoor temp. 27°C D.B. (80.6°F D.B.), 19.0°CW.B.(66.2°F W.B.) and outdoor air temp. 35°C
    D.B. (95°F D.B.), 24°CW.B.(75.2°F W.B.)
     2. Heating capacities are based on indoor temp. 20°C D.B. (68.0°F D.B.) and outdoor air temp. 7°C D.B. (44.6°F D.B.), 6°C W.B.
    (42.8°F D.B.)
    ELECTRICAL DATA (50Hz)
    MODEL / ITEMCS-W24BD2P/CU-W28BBP5
    Condition by JIS B 8615
    VoltsV220230240
    PhaseSingleSingleSingle
    Input PowerkWCool2.862.862.86
    Heat3.023.023.02
    Running CurrentACool13.112.512.5
    Heat13.813.212.7
    Starting CurrentA687072
    Power Factor%Cool999995
    Heat999999
    *Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor.
    PanasonicPower sourceAC, 1~220V, 230V, 240V 50Hz
    10 
    						
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