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Panasonic CS-F24DB4E5 Service Manual

Manual is about: Air Conditioner

Summary of CS-F24DB4E5

  • Page 1

    1 service information 3 1.1. Example of trouble at test operation 3 1.2. Caution of test operation 3 1.3. Caution during automatic address setting 3 1.4. Operation range 4 2 features 5 2.1. Variety of excellent features 5 2.2. Low-noise outdoor units 7 2.3. Improved workability 8 © 2004 panasonic ha...

  • Page 2

    5 refrigeration cycle 16 6 block diagram 17 6.1. Cs-f24db4e5 cs-f28db4e5 17 6.2. Cu-l24dbe5 cu-l28dbe5 18 7 wiring diagram 19 7.1. Cs-f24db4e5 cs-f28db4e5 19 7.2. Cu-l24dbe5 cu-l28dbe5 20 8 operation details 21 8.1. Wired remote control (optional part) 21 8.2. Wireless remote control (optional part)...

  • Page 3: 1 Service Information

    1 service information notice of address setting for new cassette / new outdoor unit. The new cassette / new outdoor models are possible to have address setting for twin / triple control or group control by automatic when main power supply is switched on. (manual address setting is also possible by u...

  • Page 4

    1.4. Operation range 1.4.1. Power supply the applicable voltage range for each unit is given in the following table. The working voltage among the three phases must be balanced within a 3% deviation from each voltage at the compressor terminals. The starting voltage must be higher than 85% of the ra...

  • Page 5: 2 Features

    2.1. Variety of excellent features 2 features 2.1.1. Compact design • • • • the height is only 246 mm and can be installed even where the space is limited. 2.1.2. Automatic restart function • • • • when the electric power comes back after a power failure, the unit itself automatically restarts the o...

  • Page 6

    2.1.8. Piping and drainage • • • • built-in upward draining mechanism. 2.1.9. 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. 2.1.10. Hot star...

  • Page 7

    [product features] 2.2. Low-noise outdoor units 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 ...

  • Page 8

    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 pipes from 10 years ago can be connected to current pipes with the...

  • Page 9

    2.3.8. Centralized draining method • • • • even when multiple outdoor units are installed to a wall, the drain outlets can be concentrated into a single drain pipe. This makes installation easier and also improve appearance. 2.4. A brand-new control method 1. Easier power supply wiring connection po...

  • Page 10

    2.5. Wired remote control 1. The new design includes an easily-visible red pilot lamp. The power can be turned on and off at a single touch, without opening the cover. 2. Has a build-in thermistor, allowing indoor temperature detection in accordance with indoor conditions by switching with main unit...

  • Page 11

    2.7. Group control equipment wired remote control group control by one remote control • • • • all air conditioner units are controlled as a whole by remote control. • • • • all indoor units operate in the same mode. • • • • a maximum of 16 units can be connected together (sequental starting) [remote...

  • Page 12: 3 Specification

    3.1. Product specification 3 specification 3.1.1. Cs-f24db4e5 cu-l24dbe5 item / model indoor unit outdoor unit main body cs-f24db4e5 cu-l24dbe5 panel cz-bt03p remote cz-rd513c (wired) control cz-rl513b (wireless) cooling capacity kw 6.3 btu/h 21,500 heating capacity kw 7.1 btu/h 24,200 refrigerant c...

  • Page 13

    3.1.2. Cs-f28db4e5 cu-l28dbe5 item / model indoor unit outdoor unit main body cs-f28db4e5 cu-l28dbe5 panel cz-bt03p remote cz-rd513c (wired) control cz-rl513b (wireless) cooling capacity kw 7.1 btu/h 24,200 heating capacity kw 8.0 btu/h 27,300 refrigerant charge-less m 30 standard air volume for hig...

  • Page 14: 4 Dimensions

    4 dimensions 4.1. Cs-f24db4e5 cs-f28db4e5 14 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 15

    4.2. Cu-l24dbe5 cu-l28dbe5 15 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 16: 5 Refrigeration Cycle

    5 refrigeration cycle 16 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 17: 6 Block Diagram

    6 block diagram 6.1. Cs-f24db4e5 cs-f28db4e5 17 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 18

    6.2. Cu-l24dbe5 cu-l28dbe5 18 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 19: 7 Wiring Diagram

    7 wiring diagram 7.1. Cs-f24db4e5 cs-f28db4e5 19 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 20

    7.2. Cu-l24dbe5 cu-l28dbe5 20 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 21: 8 Operation Details

    Remote the off/on button cannot be used. Local all wired remote control buttons can be used. Time/time setting display check display fan speed display operation mode selection display filter reset display (appears after the cumulative running time reaches approximately 2,500 hours of operation.) tem...

  • Page 22

    Transmitter transmits the remote control signal. Airflow direction setting display fan speed display temperature setting display (16°c - 31°c) time/time setting display shows the timer operation setting time or the current time. Address number display operation selection display off/on button used t...

  • Page 23: 9 Operation Control

    Description of basic control functions 9 operation control 9.1. Operation mode 1. Thermostat control 2. Depend on differences between room temperature and setting temperature, compressor running frequency will be decided and start operation. Temperature differences become same as below table, then t...

  • Page 24

    − − − − unit using dc motor as follow the below figure, fan speed changing operation (program air). (rpm center b and is different if capacity rank is different) − − − − unit using ac motor when 1st thermostat on condition from operation start, fan speed is hi (same as manual fan speed), after 2nd t...

  • Page 25

    9.3.4. Freezing prevention control • • • • during cool or dry mode operation, if indoor evaporator temperature is going down, freezing prevention control is operated. • • • • detail of freezing prevention control is as follows; indoor evaporator temperature area is divided into 5 zones, which consis...

  • Page 26

    9.4. Heating mode operation 9.3.6. Drain pump control • • • • during cooling, dry, or defrost operation, drain pump operate by following the below table. • • • • when compressor start, drain pump operation start after 10 second of indoor fan starting. • • • • when operation stop or thermostat is off...

  • Page 27

    Fan speed auto • • • • when operation start, or during operation, fan speed control by detecting indoor heat exchanger as follows: • • • • (k10 = indoor heat exchanger temperature, depend on indoor type) 9.4.2. Hot start control • • • • when heating operation start, hot start control carry out. • • ...

  • Page 28

    9.4.6. Heating high temperature protection • • • • during heating operation, when outdoor temperature is more than 35°c for 15 minute, compressor stop to protect compressor. • • • • after 3 minute (re-start delat control) waiting, if thermostat on condition, outdoor unit re-start. 28 cs-f24db4e5 cu-...

  • Page 29

    9.5. Louver control 9.5.1. Louver control for cassette type • • • • when power is on, at the same time, louver start initializing toward to close direction. • • • • during operation, stopping, thermostat off condition, louver angle set manual or auto depend on remote controller setting. − − − − louv...

  • Page 30

    9.5.2. Ceiling type louver control • • • • when power is on, at the same time, louver initialize 2 times. • • • • during operation, stopping, thermostat is off condition, louver angle change as below table by manual setting or auto setting of remote controller. Remote controller setting manual auto ...

  • Page 31

    9.6. Odour removing operation • • • • during stop condition, or cooling operation, when pushing the [odour] button for 5 second, operation change to the odour removing operation. • • • • operation detail is as follows; fan mode operation for 180 second, then refrigerant cycle change to heating mode ...

  • Page 32

    9.7. Energy save operation • • • • during cooling operation, or heating operation, when pushing the [economy] button in the wired remote controller, energy save operation start and [eco] sign is displayed at lcd display panel of wired remote controller ([economy] sign is displayed at lcd display pan...

  • Page 33

    9.11. Pump down operation • • • • when pushing the [pump down] button on the outdoor pcb for 1 second, pump down operation start. Detail of pump down operation is shown at below table. • • • • during pump down operation, push the [pump down] button once again for 1 second, pump down operation stop. ...

  • Page 34

    10 installation instruction 10.1. Pipe length • • • • correction of cooling capacity and heating capacities 1. Correction of cooling and heating capacities according to the connecting pipe length. The data of cooling capacities (marked on the name plate) are based on 5 meters connecting pipe and hor...

  • Page 35

    10.2. Refrigerant additional charge 1. Piping installation by standard piping • • • • at the time of shipment from the factory, this unit is charged with enough refrigerant for an equivalent pipe length of 30 m. (refer the following table) but when the piping length exceeds 30m, additional charge is...

  • Page 36

    This mark means “caution” or “warning”. This mark means “earth”. 10.4. Indoor unit installation four way cassette type air conditioners installation instructions precautions in terms of safety carry out installation work with reliability after through reading of this “precautions in terms of safety”...

  • Page 37

    Cautions carry out earthing work. Do not connect the earth return to the gas pipe, water line pipe, lightning rod and telephone lines. Imperfection in earth return may lead to electric shock. Drain piping should be made to ensure secure drainage according to the manual for installation work and carr...

  • Page 38

    1. In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere to the turbo fan, the fin of the heat exchanger and the drain pump, resulting in heat exchange reduction, spraying, dispersing of water drops, drain pump malfunction, etc. In these cases, take the follow...

  • Page 39

    Positions of air conditioner body and ceiling surface warning tighten the nuts and bolt to prevent unit from falling. Hanging position of the air conditioner body 10.4.4. Refrigerant piping refrigerant is charged to the outdoor unit. For details, see the manual for installation work of outdoor unit....

  • Page 40

    • • • • confirm the red mark of the union (thin side) is always at lower direction after connecting piping. Vacuum drying after completing the piping connection, execute vacuum drying for the connecting piping and the indoor unit. The vacuum drying must be carried out by using the service ports of b...

  • Page 41

    • • • • when the test is completed, connect the flexible drain hose to the drain port. 10.4.6. Heat insulation caution be sure to perform heat insulation on the drain, liquid and gas piping. Imperfection in heat insulation work leads to water leakage. 1. Use the heat insulation material for the refr...

  • Page 42

    10.4.7. Electrical wiring as to the main power source and cable size of outdoor unit, read the installation manual attached to the outdoor unit. Warning the units must be installed in accordance with applicable national and local regulations. The units installed by a professional installer must be s...

  • Page 43

    Earth lead wire shall be longer than other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from anchorage. 10.4.8. Settings do not operate the remote controller within 1 minute after turning on the power of the indoor unit. When using group control...

  • Page 44

    10.4.9. Installation of decorative panel the decorative panel has its installation direction. Confirm the direction by displaying of the piping side. Before installing the decorative panel, always remove the paper template. 1. Remove the air inlet grill from the decorative panel. 2. Remove the corne...

  • Page 45

    4. Adjust between decorative panel fixing hole and indoor unit screw hole. 5. Fix decorative panel with 4 screws with already fix at paper model for installation. Caution install certainly the decorative panel. Cool air leakage causes sweating. → water drops fall. 6. Adhere the cosmetic panel and ce...

  • Page 46

    7. Open the indoor control box cover. (2 pcs) 8. Insert firmly the connector of cosmetic louver to indoor pcb cn-stm1 and cn-stm2. Be caution not to clamp the cord in between control board and control board cover. 9. After complete, install back removed part follow opposite procedure. Warning be sur...

  • Page 47

    Is circulation of air adequate? Is draining smooth? Is heat insulation complete (refrigerant and drain piping)? Is there any leakage of refrigerant? Is remote control switch operated? Is there any faulty wiring? Are the terminal screws loosened? M3...69-98 n.Cm {7-10 kgf.Cm} m4...157-196 n.Cm {16-20...

  • Page 48

    This mark means “caution” or “warning”. This mark means “earth”. 10.5. Outdoor unit installation air conditioners outdoor unit installation instructions precautions in terms of safety carry out installation work with reliability after thorough reading of this “precautions in terms of safety”. • • • ...

  • Page 49

    Part name q’ty diagram application protective bushing 2 for protecting electrical wires banding strap 3 for tying electrical wires together heat pump-types only part name q’ty diagram application drain elbow as 1 for connecting the drain pipe (with ring seat) warnings wiring shall be connected secur...

  • Page 50

    B. Prevention measure for refrigerant piping prevention measure for refrigerant piping is very important work to prevent water-dust-rubbish from getting in. All piping terminals needs sealing such as shown below. Place period of work method of seal outside more than 1 month pinch less than 1 month p...

  • Page 51

    For the use of a gas cylinder without siphon inside, turn it upside down and use it. (we recommend manifold with sight glass.) caution do not use a “charge cylinder”. Caution as a rule, please collect all existing refrigerants in the system outside the system when the refrigerant leakage occurs by t...

  • Page 52

    12. Be sure to leave enough space around the outdoor unit to maintain proper performance and to allow access for routine maintenance. • • • • allow enough space from any obstacles as shown in fig. 1.2 below in order to prevent short-circuits from occurring. (if installing more than one outdoor unit,...

  • Page 53

    • • • • if a drain pipe needs to be installed, insert the accessory drain elbow into the mounting hole at the bottom of the outdoor unit, and connect a hose with an inside diameter of 15mm to this drain elbow. (the hose is not supplied.) if using the drain elbow, install the outdoor unit on a base w...

  • Page 54

    Caution use a material with good heat-resistant properties as the heat insulation for the pipes. Be sure to insulate both the gas-side and liquid-side pipes. If the pipes are not adequately insulated, condensation or water leakages may occur. Liquid-side pipes material that can withstand gas-side pi...

  • Page 55

    • • • • pump down operation − − − − operate the pump down according to the following procedures. Procedure notes 1. Confirm the valve on the liquid side and the gas side is surely open. 2. Press the pump down switch on outdoor printed board for 1 second or more. Perform the cooling operation for fiv...

  • Page 56

    Earth lead wire shall be longer than other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage. • • • • power supply specifications model name leakage current circuit breaker (minimum capacity) minimum power 4mm 2 cable maximum permi...

  • Page 57

    10.5.10. Connecting power supply cables caution • • • • for three phase model, never operate the unit by pressing the electromagnetic switch. • • • • never correct the phase by switching over any of the wires inside the unit. 10.5.11. Precautions with regard to test operation caution • • • • always ...

  • Page 58

    Short circuit of the blow-out air smooth flow of the drain reliable thermal insulation leakage of refrigerant mistake in wiring reliable connection of the grand wire looseness in terminal screw, fastening torque m3... 69-98n.Cm {7-10kgf.Cm} m4... 157-196n.Cm {16-20kgf.Cm} m5... 196-245n.Cm {20-25kgf...

  • Page 59

    10.6. Wired remote control installation wired remote control installation manual • • • • before installing the wired remote controller, be sure to thoroughly read the “notes with regard to safety” section of the installation manual provided with the indoor unit. • • • • after installing the wired re...

  • Page 60

    If no displays appear on the remote controller, check while referring to “if no remote controller displays appear” in “5 test operation”. • • • • the remote control cable is live during use, so please be careful with it. Remote controller wiring • • • • connect the indoor unit and the remote control...

  • Page 61

    • • • • strip the end of the remote control cable which is to be connected to the remote controller. (refer to the illustration below) • • • • route the remote control cable inside the lower case in accordance with the intended feeding- out direction. (refer to the illustration below.) securely conn...

  • Page 62

    If remote control cable is embedded if installing with the remote control cable exposed 1. Embed an outlet box (jis c 8336) into the wall, and then secure the remote controller base plate to the outlet box with the two accessory m4 screws. Make sure that the base plate is flat against the wall at th...

  • Page 63

    Automatic address resetting for group control • • • • the address settings for group control (air conditioner nos. 1 to 16) can be reset automatically. 1. When operation is stopped, press for 5 seconds, continue the test run switch to display “00” (will be local mode). 2. Press the up (temp) down (t...

  • Page 64

    10.6.5. Test operation • • • • turn on the main power. • • • • after 3 minutes have passed since the power was turned on, press the off/on switch on the remote controller. (no operation occurs within 3 minutes after the power was turned on.) • • • • press the test run switch within 1 minute of press...

  • Page 65

    • • • • you can then switch between the display for the previous problem and the problem before that by pressing the up (timer) down (timer) switches. • • • • press the check switch once more to return to the normal display. Example of previous problem display example of abnormality display before p...

  • Page 66

    10.7. Wireless remote control installation manual wireless remote control installation manual • • • • before installing the wireless remote controller, be sure to thoroughly read the “notes with regard to safety” section of the installation manual provided with the indoor unit. • • • • after install...

  • Page 67

    • • • • if using a single remote controller to operate several air conditioners, address setting will be required. (refer to later in this manual.) • • • • for twin and triple types, install to the main unit only. (accordingly, the installation and wiring operations described later in this manual ar...

  • Page 68

    1. Route the joint cord for wiring as shown in the figure (figure of the back of decorative panel) below. Pass the cord through the hook of the decorative panel, taking care that the cord does not run on the heat insulator, etc. 2. Remove the control box cover by removing the two fixing screws and c...

  • Page 69

    Receptor unit (for ceiling type) assembly procedure 1 attach the receptor unit onto the indoor main unit as shown in the figure below. 1. Remove the air-intake grille and the side cover. To remove the side cover, remove the fixing screw each on the left and the right and pull the side cover towards ...

  • Page 70

    10.7.4. Address setting for wireless remote controller and receptor unit (only when using more than one indoor unit) • • • • only the air conditioner units which receptor unit address numbers match the remote controller address number can be operated. • • • • at the time of shipment from the factory...

  • Page 71

    Note • • • • if the batteries are replaced or the remote controller is reset, the address setting will return to address1, so you will need to repeat the address setting again. All setting details which are stored in memory will be cleared, so you will need to repeat the setting. • • • • if the addr...

  • Page 72

    [manual setting] 10.7.5. Emergency operation • • • • if you do not have the wireless remote controller (because the batteries are weak, or some other reason prevents the wireless remote controller from being used), emergency operation can be carried out at receptor unit. • • • • press the auto switc...

  • Page 73

    10.8. Twin and triple 10.8.1. Twin and triple operation • • • • simultaneous air conditioning of wide spaces and corners is possible. Indoor units with horsepowers can even be used in combination. • • • • master unit and slave-units can be set automatically in twin and triple systems. No address set...

  • Page 74

    11 installation and servicing air conditioner using r410a 11.1. Outline 11.1.1. About r410a refrigerant 1. Converting air conditioners to r410a since it was declared in1974 that chlorofluorocarbons (cfc), hydro chlorofluorocarbons (hcfc) and other substances pose a destructive danger to the ozone la...

  • Page 75

    D. R410a refrigerating machine oil conventionally, mineral oil or a synthetic oil such as alkylbenzene has been used for r22 refrigerating machine oil. Because of the poor compatibility between r410a and conventional oils like mineral oil, however, there is a tendency for the refrigerating machine o...

  • Page 76

    11.2.2. R410a tools 1. Copper tube gauge for clearance adjustment (used when flaring with the conventional flaring tool (clutch type)) • • • • this gauge makes it easy to set the clearance for the copper tube to 1.0-1.5 mm from the clamp bar of the flaring tool. 2. Flaring tool (clutch type) • • • •...

  • Page 77

    5. Charging hose • • • • the pressure resistance of the charging hose has been raised to match the higher pressure of r410a. The hose material has also been changed to suit hfc use, and the size of the fitting has been changed to match the manifold ports. 6. Vacuum pump adaptor • • • • when using a ...

  • Page 78

    8. Electronic scale for refrigerant charging • • • • because of the high pressure and fast vaporizing speed of r410a, the refrigerant cannot be held in a liquid phase inside the charging cylinder when charging is done using the charging cylinder method, causing bubbles to form in the measurement sca...

  • Page 79

    11.3. Refrigerant piping work when working with refrigerant piping, the following points must be carefully observed: no moisture or dust must be allowed to enter the piping, and there must be no refrigerant leaks. 1. Procedure and precautions for flaring work a. Cut the pipe use a pipe cutter, and c...

  • Page 80

    2. Procedure and precautions for flare connection table 11 r410a flaring dimensions nominal diameter outside diameter (mm) wall thickness (mm) a (mm) r410a flaring tool, clutch type conventional flaring tool clutch type wing-nut type 1/4 6.35 0.8 0 - 0.5 1.0 - 1.5 1.5 - 2.0 3/8 9.52 0.8 0 - 0.5 1.0 ...

  • Page 81

    Precautions • • • • be sure to read the instructions for the vacuum pump, vacuum pump adaptor and manifold gauge prior to use, and follow the instructions carefully. • • • • make sure that the vacuum pump is filled with oil up to the designated line on the oil gauge. • • • • the gas pressure back fl...

  • Page 82

    11.4.2. Transferring (using new refrigerant piping) 1. Removing the unit a. Collecting the refrigerant into the outdoor unit by pumping down the refrigerant can be collected into the outdoor unit (pumping down) by pressing the test run button, even when the temperature of the room is low. • • • • ch...

  • Page 83

    3. Fully open the handle lo of the manifold gauge, turn on the power of the vacuum pump and continue the vacuum process for at least one hour. 4. Confirm that the low pressure gauge shows a reading of -0.1 mpa (-76 cmhg), then fully close the handle lo, and turn off the vacuum pump. Wait for 1-2 min...

  • Page 84

    11.4.6. Brazing as brazing requires sophisticated techniques and experiences, it must be performed by a qualified person. In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to proceed with brazing while letting dry nitrogen gas (n 2 ) flow. 1. Atta...

  • Page 85: 12 Troubleshooting Guide

    12 troubleshooting guide 12.1. Self-diagnosis error code table • • • • the display screen on the wired remote control unit and the self-diagnosis leds (green) on the outdoor unit printed circuit board in the outdoor unit can be used to indicate where the location of a problem is. Refer to the table ...

  • Page 86

    Wired remote control unit display outdoor unit printed circuit board led location or problem check location abnormal dispaly detail dispaly 302 303 304 305 306 307 308 309 f40 -01 outlet temperature sensor problem outlet temperature sensor lead wire, connector cn-th1 -11 compressor suction temperatu...

  • Page 87: 13 Replacement Parts

    13.1. Indoor unit 13 replacement parts 87 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 88

    88 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 89

    Ref. No. Part name & description qty. Cs-f24db4e5 cs-f28db4e5 1 base pan ass’y 1 cwd52k1099 ← ← ← ← 2 inner polystyrene complete 1 cwg07c1045 ← ← ← ← 3 cabinet side plate ass’y 1 cwe041112 ← ← ← ← 4 cabinet side plate ass’y 1 cwe041113 ← ← ← ← 6 fan motor 1 ehds50a40ac ← ← ← ← 7 anti-vibration bushi...

  • Page 90

    90 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 91

    Front grille complete (cz-bt03p) no. Part description qty part no. 1 front grille-complete 1 cwe11c3104 2 frame-front grille co. 1 cwe11c3101 4 a.S motor dc, single 12v 250 ohm 2 cwa981105 5 bracket-a.S.Motor 2 cwd932391 6 vane 4 cwe241146 7 shaft 6 cwh631038 8 shaft 2 cwh631039 9 connector-shaft 4 ...

  • Page 92

    13.2. Outdoor unit 92 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 93

    93 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 94

    94 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 95

    No. Part description qty. Cu-l24dbe5 cu-l28dbe5 1 base pan ass’y 1 cwd52k1098 ← ← ← ← 2 compressor 1 5kd240xaa21 ← ← ← ← 3 anti-vibration bushing 3 cwh50055 ← ← ← ← 4 nut for comp. Mount. 3 cwh4582065 ← ← ← ← 4a packing 1 cwb811017 ← ← ← ← 5 crankcase heater 1 cwa341012 ← ← ← ← 6 condenser complete ...

  • Page 96

    14 electronic circuit diagram 14.1. Indoor unit schematic diagram 1/4 q13 rt1n141c q12 dta114eka d17 hru0183a2 zd4 udzs308 zd3 udzs308 floa t sm lf 2 ss11v-r04520 cn-rem (xh3) 1 2 3 d16 dan217 q9 2sb119ek e b c c b e q10 2sd1782k q7 2sb1198k e b c c b e q8 2sd1782k d14 dan202u d13 dap202u ic5 tc7500...

  • Page 97

    Schematic diagram 2/4 cs 1 3 4 5 6 8 2 d0 vc r/b /cc d1 sk gnd 7 2 4 6 8 1 3 5 7 ic2 br9080af d12 d11 pin2 none c b e q 2 c63 1000p 1 2 3 4 5 6 7 8 9 21 22 23 24 25 26 27 28 29 52 53 54 55 56 57 58 59 60 72 73 74 75 76 77 78 79 80 10 51 30 71 11 50 31 70 12 49 13 48 32 69 33 68 14 47 15 46 16 45 34 ...

  • Page 98

    Schematic diagram 3/4 c19 1000 pc tlp (b 4 3 c b e q15 2sc3052f r111 none q16 2sc1841 (fa) c5 none d1 ia5-e 600v 1a lf3 sy-110av zd10 rd6.2e zd9 rd6.2e zd8 rd16uj (n3) c b e pc8 tlp421 1 2 4 3 q2 rt1p432c c e b 10k 4.7k q18 2sc18741 (fa) c b e zd5 rd4.7uj pc7 tlp421 (bl) 1 2 4 3 q15 2sc3052f q6 rt1p...

  • Page 99

    Electronic control unit fuse1 3.15a 250v 3 2 1 (ecqu) 0.47 275vac c1 znr1 510v c4 0.22 275vac ry-pwr lj r1 7.5 5v cn-drmtr 1 3 ssr1 aqg22212804 d81 d3sba68 c19 1000p c81 1 275vac ry-con gge-134p r96 39k 2w r63 10k d19 r97 39k 2w pc6 tlp421 (bl) 1 4 2 3 cn-fm 1 2 3 4 5 6 7 r2 100k 1/2w r5 3.9k d9 9 0...

  • Page 100

    14.2. Outdoor unit schematic diagram 1/7 a a cu-l34dbe5 cu-l43dbe5 cu-l24dbe5 cu-l28dbe5 r259 27.4k 1% c63 1000p q23 2sc3052 c b e r87 3.3k 1% r89 47k 1% ic1 pin 62 r88 5.6k 1% pc6 tlp421 (bl3) 1 2 4 3 d45 1ss355t zd2 rd39js (ab2) r65 150 q31 2sd2394e c b e d52 d1f60 600v 1a 2sc3052 q32 c b e c b e ...

  • Page 101

    Schematic diagram 2/7 a a c1 c53 1 6.3v r114 12.1k 1% ths1 d4ce35030002 ss91 2 1 3 4 ry-n01 ac-blk ac-fme* r105 7.5 5% znr1 r6 33 1% 1/4w pc3 tlp620gb (gr) 1 2 4 3 r180 39k 2w r181 39k 2w ry-ht r278 cn-ht 2 1 q20 2sc3052 c b e r63 4.7k c39 0.01 r53 1.5k r60 1k r62 4.7k r59 39k cn-th1 r100 15.0k 1% r...

  • Page 102

    Schematic diagram 3/7 a a c133 0.1 16v c51 0.047 25v r107 10k r106 1k r158 15k 1% c61 0.047 25v c60 10 r120 r1 19 r1 18 r269 10k r102 10k 1% r64 10k d21 gb1z r55 k 1% r54 20k c62 0.047 25v 10k q24 rt1n432c c65 0.047 25v r138 5.6k c64 100 16v r140 10k d16 hru0103a2 d15 hru0103a2 r257 2.2k x1 d24 1ss3...

  • Page 103

    Schematic diagram 4/7 a a d47 1a5-e 600v 1a hru8l8 3a2 x 4 d46 d34 d33 d35 d36 1a5-e 600v 1a 2 str-vis2 r33 0.91 1w c20 10 50v zd4 maz4047 35v (fc) c28 680p (jc) pc7 pc817e7 r45 1k r39 1.50k 1% 1/4w ic17 tl431 c b ref c27 0.1 16v r37 27k r42 1k 1/4w r36 301 1% r40 1.54k 1% r38 15.0k 1% 220p 2kv c10 ...

  • Page 104

    Schematic diagram 5/7 a a r31 11.0k 1% r38 464k 1% r29 464k 1% r28 10.7k 1% r27 464k 1% r26 464k 1% pc2 tlp421 1 2 4 3 r8 18k r7 200 1/4w c26 0.1 25v r4 10.0 1/4w 1% r5 0.039 q4 2sa1366 c b e q3 2sa1366 c b e r3 10k r 2 47 e c b pc1 tlp421 (bl) 4 3 1 2 r1 470 q1 1wbh50- 060 db1 q4 rt1p432c c e r21 1...

  • Page 105

    Schematic diagram 6/7 a a r16 39k 1% r16 39k 1% e c b q28 rt1p432c 10k 4.7k e c b q26 rt1r432c 4.7k 10k b q16 rt1p432c 10k 4.7k r167 1k r165 2k c71 0.01 c73 1000p r163 1k r169 4.42k 1% r171 10.0k 1% r175 200k 1% c75 10 r173 5.11k 1% cn-fn2 1 2 3 4 5 6 7 c79 0.22 630v (ecqe) c81 0.047 25v e c b q27 r...

  • Page 106

    Schematic diagram 7/7 a a electronic control unit table 1 code no. A743401 a743564 note r205 none 0.03 Ω 5w r206 17.4k 1% 16.9k 1% r258 2.61k 1% 4.02k 1% r260 33.2k 1% 13.7k 1% r263 4.99k 1% 5.23k 1% r264 4.99k 1% 5.23k 1% fw-block1 none ← dc fw-block2 none ← cn-fm3 vh3-2(grn) ← c31 0.01 µ ← ssr1 g3...

  • Page 107

    14.3. Wired remote control 107 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 108

    14.4. Wireless remote control 108 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 109

    14.5. Print pattern 14.5.1. Indoor unit • • • • indoor unit printed circuit board (main) 109 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 110

    • • • • indoor unit printed circuit board (indicator) 110 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 111

    14.5.2. Outdoor unit • • • • outdoor unit printed circuit board (main) 111 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5.

  • Page 112

    • • • • outdoor unit printed circuit board (power) • • • • outdoor unit printed circuit board (service) 112 cs-f24db4e5 cu-l24dbe5 / cs-f28db4e5 cu-l28dbe5 [phaam] printed in malaysia.