Panasonic CS-A18BD3P Service Manual Download Page 1

 1 

SERVICE INFORMATION 

3

 2 

FEATURES 

4

 3 

SPECIFICATION (HEAT PUMP TYPE) 

7

 4 

SPECIFICATION (COOLING ONLY TYPE ) 

8

 5 

TECHNICAL DRAWING 

9

 6 

CIRCUIT DIAGRAM 

11

 7 

OPERATING INSTRUCTION 

22

 8 

REFRIGERATION CYCLE 

24

 9 

OPERATION RANGE 

25

 10 PIPE LENGTH 

26

 11 OPERATING CHARACTERISTIC 

28

 12 FAN PERFORMANCE 

29

 13 SAFETY DEVICE 

30

© 2002 Matsushita Industrial Corporation Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.

CS-A18BD3P CU-A18BBP5
CS-A18BD3P CU-C18BBP5

 14 COMPONENT SPECIFICATION 

31

 15 CAPACITY AND POWER CONSUMPTION 

33

 16 DISCHARGE AND SUCTION PRESSURE 

36

 17 POSITION OF THE CENTRE GRAVITY 

37

 18 SOUND DATA 

38

 19 TWIN AND TRIPLE 

39

 20 WIRING MISTAKE PREVENTION 

45

 21 TEST OPERATION AND SELF DIAGNOSIS 

46

 22 SETTING OF SAVE ENERGY AND THERMISTOR SWITCH 

50

 23 GROUP CONTROL 

51

 24 TROUBLE SHOOTING 

52

 25 EMERGENCY OPERATION 

58

 26 CONTROL 

59

AIR CONDITIONER

CONTENTS

 Page 

Page

ORDER NO. MAC0208031C8

Summary of Contents for CS-A18BD3P

Page 1: ...T All rights reserved Unauthorized copying and distribution is a violation of law CS A18BD3P CU A18BBP5 CS A18BD3P CU C18BBP5 14 COMPONENT SPECIFICATION 31 15 CAPACITY AND POWER CONSUMPTION 33 16 DISCHARGE AND SUCTION PRESSURE 36 17 POSITION OF THE CENTRE GRAVITY 37 18 SOUND DATA 38 19 TWIN AND TRIPLE 39 20 WIRING MISTAKE PREVENTION 45 21 TEST OPERATION AND SELF DIAGNOSIS 46 22 SETTING OF SAVE ENE...

Page 2: ...27 INSTALLATION INDOOR UNIT 70 28 INSTALLATION OUTDOOR UNIT 87 29 REPLACEMENT PARTS 97 2 ...

Page 3: ...ate although the main power supply switch is on 2 LCD display had indicated as normal illumination when power supply switch is on however outdoor 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 co...

Page 4: ...he fan speed according to the indoor temperature 2 1 7 Dry mode function Dry mode can make a comfortable indoor environment during wet season 2 1 8 Automatic changeover function heat pump models The unit automatically switches between cooling and heating in accordance with operating load in order to maintain a confortable indoor temperature 2 1 9 Common design for Indoor unit and Remote Control Th...

Page 5: ...nit is installed against a wall 2 2 4 Easy test operation Test operation can be carried out for both indoor and outdoor units 2 2 5 Long pipe design Max piping length 25 m 18BB Height difference equivalent pipe length 20 25 2 3 A brand new control method using the latest in technology 2 3 1 Power supply wiring is also easier Power supply wiring and other wiring tasks can be carried out more easily...

Page 6: ...models can even be used in combination Master unit and slave units can be set automatically in twin and triple systems No address setting is necessary Multiple indoor units can be operated simultaneously with a single remote control Note that individual operation is not possible Twin and Triple combination table 2 3 4 Group control equipment 6 ...

Page 7: ...induction motor Input kW 0 15 0 11 Rated Output kW 0 085 0 045 Air heat Exchanger Louvre fin type Louvre fin type Refrigerant Control Capillary tube Capillary tube Refrigerant Oil Charged L M60 0 67 Refrigerant Charged kg oz R 22 2 0 71 Running Adjustment Control Switch Wired Remote Control Room Temperature Thermostat Main Body Safety Devices Internal protector for compressor Internal thermostat f...

Page 8: ...mote Control Motor Type 4 pole single phase induction motor 6 pole single phase induction motor Input kW 0 15 0 11 Rated Output kW 0 085 0 045 Air heat exchanger Louvre fin type Louvre fin type Refrigerant Control Capillary tube Capillary tube Refrigerant oil Charged L M60 0 67 Refrigerant Charged kg oz R 22 1 6 56 Running Adjustment Control Switch Wired Remote Control Room Temperature Thermostat ...

Page 9: ...5 TECHNICAL DRAWING CS A18BD3P OUTSIDE DIMENSIONS 9 ...

Page 10: ...10 ...

Page 11: ...6 CIRCUIT DIAGRAM 11 ...

Page 12: ...12 ...

Page 13: ...13 ...

Page 14: ...14 ...

Page 15: ...15 ...

Page 16: ...16 ...

Page 17: ...17 ...

Page 18: ...18 ...

Page 19: ...19 ...

Page 20: ...20 ...

Page 21: ...21 ...

Page 22: ...7 OPERATING INSTRUCTION 7 1 Wired Remote Control Name and function of each part 22 ...

Page 23: ...23 ...

Page 24: ...8 REFRIGERATION CYCLE 8 1 Heating Model CS A18BD3P CU A18BBP5 8 2 Cooling Model CS A18BD3P CU C18BBP5 24 ...

Page 25: ...mpressor terminals The starting voltage must be higher than 85 of the rated voltage Power Supply Model Unit Main Power Applicable Voltage Phase Volts Hz Maximum Minimum A18BB 1 220 50 242 198 1 230 50 253 207 1 240 50 264 216 Indoor and Outdoor Temperature All Models Operating Hz Indoor Temp D B W B C Outdoor Temp D B W B C Maximum Minimum Maximum Minimum Cooling 50 32 23 21 15 43 5 Heating 50 27 ...

Page 26: ...iping length The rated amount of refrigerant is indicated on the name plate But when the piping length exceeds 10m additional charge is required according to the following table For other pipe length of other installation multiply by the following correction factor to determine the revised cooling capacity Heating Outer diameter of gas side pipe mm inch ELE 6 35 1 4 0 18 12 7 1 2 0 20 15 88 5 8 0 ...

Page 27: ...rd piping specification Heat pump type Cooling only type Liquid piping Gas piping Gas charge less length Additional gas volume Ømm Ømm m g m CU A18BBP5 CU C18BBP5 6 35 12 7 10 20 Attention Please do not decrease the gas piping size It causes the breakdown of the compressor The equivalent piping length and the cooling and heating capacity change rate are same as the standard piping specification 27...

Page 28: ...L HEAT COOL HEAT A kW A kW CS A18BD3P 220 50 38 7 9 7 9 1 74 1 72 0 30 0 06 0 50 0 10 CU A18BBP5 230 50 40 7 7 7 7 1 74 1 72 0 30 0 06 0 50 0 10 240 50 42 7 6 7 6 1 74 1 72 0 30 0 06 0 50 0 10 COOLING ONLY MODEL CS A18BD3P 220 50 38 7 9 1 74 0 30 0 06 0 50 0 10 CU C18BBP5 230 50 40 7 7 1 74 0 30 0 06 0 50 0 10 240 50 42 7 6 1 74 0 30 0 06 0 50 0 10 Legend S C Starting Current R C Running Current I...

Page 29: ...12 FAN PERFORMANCE CS A18BD3P Fan Performance Curve 29 ...

Page 30: ...FF A 15 5 Cooling 50Hz only A 60Hz RESET Automatic Discharge Temp Compressor C Protection OFF Discharge Temp Thermistor Th1 Liquid Compression Protection Crankcase Heater Input power W Compressor Protection OFF C 50Hz 150 Internal Protector ON C 50Hz 90 Trip time 50Hz 3 10sec 44A For Fan Motor Protection OFF C 50Hz 135 Internal Protector 49F ON C 50Hz 85 Heating Pressure switch Heat OFF MPa 2 35 p...

Page 31: ...rect on line Starting Rated Output 1 5 Poles 2 Insulation Class E Oil Type M60 Charge L 0 67 Condenser Models Heat pump model CU A18BBP5 Cooling only model CU C18BBP5 Tube Material Outer Diameter mm 9 52 Thickness mm 0 3 Row 2 No of Tubes Row 34 Fin Material Thickness mm 0 105 Fin Pitch No inch 14 Fin Surface AX Louvre fin Total Face Area m2 0 61 Fan Type No of unit 1 Fan Motor Starting Method Rat...

Page 32: ...ss mm 0 28 Row 3 No of Tubes Row 10 Fin Material Aluminium Thickness mm 0 11 Fin Pitch No inch 14 Fin Surface Louvre fin Total Face Area G 0 218 Evaporator Fan Type Sirocco Fan No Unit 2 Evaporator Fan motor Starting Direct On Line Starting Rated Output kW 0 085 Poles 4 Phase Single Phase Insulation E 32 ...

Page 33: ...r consumption graph is 1 02 Thus Actual cooling capacity cooling capacity ratio x rated cooling 0 92 x 7 80 7 18 kW Actual cooling power consumption cooling power consumption x rated power consumption 1 02 x 2 70 2 75 kW 15 CAPACITY AND POWER CONSUMPTION 15 1 COOLING CAPACITY CURVE COOLING POWER CONSUMPTION CURVE RATED COOLING CAPACITY RATED COOLING POWER CONSUMPTION MODEL NAME RATED COOLING STAND...

Page 34: ...09 5 13 2 25 6 83 5 07 2 39 6 50 4 95 2 55 6 18 4 82 2 71 5 79 4 63 2 83 22 7 67 3 96 2 49 7 41 3 97 2 62 7 09 3 93 2 78 6 76 3 88 2 91 6 37 3 77 3 06 17 6 72 5 88 2 09 6 46 5 78 2 25 6 15 5 66 2 39 5 76 5 41 2 55 5 30 4 98 2 68 29 19 7 05 5 10 2 25 6 79 5 05 2 39 6 46 4 92 2 55 6 15 4 79 2 71 5 76 4 60 2 83 22 7 63 3 95 2 49 7 37 3 95 2 62 7 05 3 91 2 78 6 72 3 86 2 91 6 33 3 75 3 06 17 6 67 5 83...

Page 35: ...nsideration 01 overfrosting and defrost operations Heating capacity must be multiplied by the compensation coefficient below Heating capacity compensation coefficient for heating in frosted situations HEATING POWER CONSUMPTION CURVE 15 3 HEATING CAPACITY CURVE HEATING POWER CONSUMPTION CURVE HEAT PUMP MODEL ONLY RATED HEATING CAPACITY RATED HEATING POWER CONSUMPTION MODEL NAME RATED HEATING STANDA...

Page 36: ...16 DISCHARGE AND SUCTION PRESSURE 16 1 SATURATION TEMPERATURE OF DISCHARGE AND SUCTION PRESSURE 36 ...

Page 37: ...ION OF THE CENTRE GRAVITY MODEL NAME OUTSIDE DIMENSIONS NET WEIGHT CENTRE OF GRAVITY WIDTH mm DEPTH mm HEIGHT mm kg X mm Y mm Z mm CU A18BBP5 800 300 685 56 560 160 360 CU C18BBP5 800 300 685 52 560 160 360 37 ...

Page 38: ...18 SOUND DATA 38 ...

Page 39: ... the master unit If automatic setting is not possible carry out the settings manually Install the remote control unit to the master unit It cannot be connected to slave units The remote control thermostat can also be set Optional circuit boards can only be installed to the master unit Setting the master unit and slave units can also be carried out manually by using DIP switches However manual sett...

Page 40: ...ke priority in the setting of twin and triple addresses If address setting using the DIP switches is carried out after automatic address setting has been carried out use DIP switch No 3 on the outdoor unit to carry out automatic address resetting If you would like to designate a particular indoor unit as the master unit because no master unit has been set use the DIP switches on the slave units to...

Page 41: ...in address setting the indoor units receive this command and they then clear their existing settings and carry out automatic address setting If an indoor unit has had its address set by the DIP switch DIP switch 1 8 is ON or if the remote control unit is connected to one of the indoor units then the addresses for those indoor units cannot be reset The indoor units will not run for approximately 1 ...

Page 42: ... Installing branch pipes 42 ...

Page 43: ...the branch pipe L and the junction pipes Ia t Ib t Ic in order from the thickest diameter At the point where the pipe length exceeds 30 m determine the amount of refrigerant for the remaining liquid side pipe diameters and pipe lengths from the following table in order to charge the system 43 ...

Page 44: ...19 4 Wiring 44 ...

Page 45: ...ected to terminals 1 and 2 and the control wires connected to terminals 3 and 4 are connected correctly If they are connected incorrectly connnect them correctly Normal operation should then commence Do not short the remote control wires to each other The protection circuit will be activated and the units will not operate Once the cause of the short is eliminated normal operation will then be poss...

Page 46: ...ssible that the connection error prevention circuits have operated In such cases check that the drive wires connected to terminals 1 and 2 and the control wires connected to terminals 3 and 4 are connected correctly If they are connected incorrectly connect them correctly Normal operation should then commence If the phase is reversed the LED on the printed circuit board will flash Check that the v...

Page 47: ...21 3 Test operation using the wired remote control 47 ...

Page 48: ...48 ...

Page 49: ... Self diagnosis error code table 49 ...

Page 50: ...RGY AND THERMISTOR SWITCH 22 1 Energy save setting Open the cover remote control unit and confirm the presence of the RP1 marking Energy save setting method should be different for with RP1 marking and without RP1 marking 50 ...

Page 51: ...power supply for at least 1 minute during automatic address setting otherwise the settings will not be made correctly Automatic address resetting for group control After setting DIP switches 1 to 4 to OFF and stop operation Then press the AIR SWING AUTO OPERATION MODE and Air conditioner No switches simultaneously Then addresses will be momentarily reset and then automatic address setting will be ...

Page 52: ...open circuit at section B Symptom Remote control unit Display of No power supply NOTE Indoor unit No display Outdoor unit LED3 and LED7 on printed circuit board flash 3 The main power is turned on while the remote control unit connection cord is not connected open circuit at section C Symptom Remote control unit Display of No power supply NOTE Indoor unit LED1 on printed circuit board stays illumi...

Page 53: ...and the unit does not operate at all Outdoor unit The LEDs on the printed circuit board flash and operation stops 3 The main power is turned on while the remote control connection cord is not connected open circuit at section C Symptom Remote control unit Display of No power supply Indoor unit master LED1 on the printed circuit board stays illuminated and the unit does not operate Indoor unit slav...

Page 54: ...rd flash 3 The main power is turned on while the remote control connection cord is not connected open circuit at section C Symptom Nothing abnormal appears on the remote control display and operation of indoor unit No 1 and indoor unit No 2 is possible However indoor unit No 3 cannot be operated Remedy 1 Turn off the main power 2 Connect the disconnected wires correctly 3 Turn the main power back ...

Page 55: ...talled to indoor units and outdoor separately turn on the switch as the following procedure outdoor unit indoor unit with control and other indoor units When the slave units do not operate when address cannot be set Important The address for the group control cannot be reset using the above mentioned procedure 2 Manual address setting by dip switch DSW1 When you set the address manually set the di...

Page 56: ... indoor units and outdoor separately turn on the switch as the following procedure outdoor unit indoor unit with controller and other indoor units The AC number will be set at random 2 Manual address setting by dip switch DSW1 When you set the address manually set the dip switch of the PC board in the indoor unit as follow 3 Manual address setting by dip switch DSW1 When you set the address manual...

Page 57: ... deleting memory at group control system 1 Set the OFF position for main power supply switch 2 Set the ON position for No 1 pin to No 4 pin of dip switch DSW1 on indoor unit P C board No 8 pin of dip switch DSW1 should be OFF position 3 Take main power supply switch ON for one minute and then main power supply switch off 4 Set the OFF position for No 1 No 2 No 3 and No 4 pin of dip switch DSW1 Imp...

Page 58: ...nits When a thermistor abnormality is judged to have occurred Set only the thermistor which shows an abnormality to the condition shown in the table below to carry out emergency operation Thermistor Cooling mode Heating mode Indoor unit Room temperature Fixed at 25 C Room temperature Shorted Open Thermistor Cooling mode Heating mode Outdoor unit Discharge temperature Open Shorted Heat exchanger ou...

Page 59: ...n is carried out at the fan speed detected for 30 seconds After 30 seconds the heat exchanger outlet temperature is detected and the outdoor unit fan speed is changed automatically 2 Cooling low outdoor temperature protection When the heat exchanger outlet temperature drops to less than 12 C for a continuous period of 10 minutes the outdoor unit stops running This is cancelled after 3 minutes re s...

Page 60: ...nues operating at the fan speed set by the remote control unit The remote control unit display does not change 2 Cancelling This control is cancelled when the temperature detected by the indoor unit pipe temperature sensor is 15 C or higher If the outdoor unit stops even though the temperature is 15 C or higher restart prevention control will activated and the outdoor unit will not start again for...

Page 61: ... and when the liquid bypass valve is on the outdoor unit fan is controlled by means of input CN2 indicating whether the contact of the heating pressure switch on the outdoor unit circuit board is open or closed At the start of heating mode operation the fan operates at HI speed 26 4 Hot starting 1 When heating mode operation starts 1 Start Hot start control commences heating mode operation starts ...

Page 62: ...en returns to the previous setting When hot start operation is cancelled by temperature 2 When defrosting is complete 1 Start Hot start control commences when defrosting is complete 2 Operation PREHEAT appears on the remote control display Other displays remain unchanged At the indoor unit the indoor unit fan stops In addition during hot starting the louvre stays at the horizontal position angle 0...

Page 63: ...ff the indoor unit fan again runs at LOW for 10 seconds and at 3 minute intervals after that it switches back to LOW operation for 10 seconds 26 6 Excess heat dissipation for indoor unit The indoor unit fan continues operating for 30 seconds after heating mode operation turns off in order to dissipate excess heat 1 When heating mode operation has stopped LOW operation for 30 seconds 2 When operati...

Page 64: ...the temperature detected by the outdoor unit heat exchanger outlet sensor is 25 C or higher After defrosting is complete hot starting commences c Forced defrosting If P8 on the outdoor unit circuit board is shorted while the compressor is ON during heating mode operation and the temperature detected by the outdoor unit heat exchanger outlet sensor is 25 C or lower defrosting is carried out regardl...

Page 65: ...65 ...

Page 66: ...66 ...

Page 67: ...4 Thermostat characteristic during cooling mode and heating mode operation The thermostat on off characteristic in both operation modes are given in the table below 67 ...

Page 68: ...ut when the compressor switches from on to off when the remote control unit is used to stop operation 2 Operation The outdoor unit fan runs at SUPER HI speed for approximately 60 seconds and then stops 26 12 Discharge temperature control 1 Operation When the discharge temperature sensor detects a temperature of 100 C or higher during cooling mode operation the liquid bypass valve is turned on 2 Ca...

Page 69: ...69 ...

Page 70: ...27 INSTALLATION INDOOR UNIT 70 ...

Page 71: ...71 ...

Page 72: ...72 ...

Page 73: ...73 ...

Page 74: ...74 ...

Page 75: ...75 ...

Page 76: ...76 ...

Page 77: ...77 ...

Page 78: ...78 ...

Page 79: ...79 ...

Page 80: ...80 ...

Page 81: ...81 ...

Page 82: ...82 ...

Page 83: ...83 ...

Page 84: ...84 ...

Page 85: ...85 ...

Page 86: ...86 ...

Page 87: ...28 INSTALLATION OUTDOOR UNIT 87 ...

Page 88: ...88 ...

Page 89: ...89 ...

Page 90: ...90 ...

Page 91: ...91 ...

Page 92: ...92 ...

Page 93: ...93 ...

Page 94: ...94 ...

Page 95: ...95 ...

Page 96: ...96 ...

Page 97: ...29 REPLACEMENT PARTS 29 1 INDOOR UNIT CS A18BD3P 97 ...

Page 98: ...se ass y P45 T05700 1 10 Casing R ass y P45 T06760 1 11 Casing L ass y P45 T06770 1 12 Fan motor P06 T03491 1 13 Panel side R ass y P42 T02750 1 14 Panel side L ass y P42 T02950 1 15 Terminal board P06 T04680 1 16 Capacitor P06 T04620 1 17 Transformer P06 T04300 1 18 Remote control P A75C2240 1 19 Thermistor ass y 06 854510 1 20 Coil sensor 06 853760 1 21 PCB assembly A73C1168 1 22 Noise filter P4...

Page 99: ...29 2 OUTDOOR UNIT CU C18BBP5 99 ...

Page 100: ...CU A18BBP5 100 ...

Page 101: ...7 CONTROL BOARD 1 CWH10K1025 18 COMPRESSOR RELAY 1 CWA4000088 19 TERMINAL BOARD ASS Y 1 CWA28K234 20 CAPACITOR FAN MOTOR 1 DS461255QP A 2 5µF 460v 21 CAPACITOR COMPRESSOR 1 DS371506CPNA 50µF 370v 22 ELECTRONIC CONTROLLER 1 CWA73C1195 23 TRANSFORMER 1 CWA401029 24 CURRENT TRANSFORMER BOARD 1 CWA742592 25 CONTROL BOARD COVER 1 CWH131151A 26 TERMINAL COVER 1 CWH171012 27 BRACKET FAN MOTOR 1 CWD54238 ...

Page 102: ...P 1 CWG302047 21 V COIL COMPLETE 1 CWA43C2063 22 PIPING SENSOR COIL 1 CWA501043 23 SPRING FOR SENSOR 2 CWH711010 24 CABINET REAR PLATE 1 CWE02096B 25 CONTROL BOARD 1 CWH10K1025 26 TERMINAL BOARD ASS Y 1 CWA28K234 27 CAPACITOR FAN MOTOR 1 DS461255QP A 2 5µF 460v 28 CAPACITOR COMPRESSOR 1 DS371506CPNA 50µF 370v 29 ELECTRONIC CONTROLLER 1 CWA73C1204 30 TRANSFORMER 1 CWA401029 31 CURRENT TRANSFORMER B...

Reviews: