Panasonic CU-PW9DKE Service Manual Download Page 2

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1 Features

High Efficiency

Air Quality Indicator

Comfort Environment

Air filter with function to reduce dust and smoke

Auto Restart Control

Automatically restart after power failure

CS-PW9DKE / CU-PW9DKE / CS-PW12DKE / CU-PW12DKE

Enviromental Friendly (For Refrigerant : R410A Model)

12-hour Timer Setting

Zero ozone depleting potential and low global

warming potential by using R410A refrigerant.

Summary of Contents for CU-PW9DKE

Page 1: ...ormation by anyone else could result in serious injury or death 1 Features 2 2 Functions 3 3 Product Specifications 6 4 Dimensions 11 5 Refrigeration Cycle Diagram 12 6 Block Diagram 13 7 Wiring Diagr...

Page 2: ...n to reduce dust and smoke Auto Restart Control Automatically restart after power failure CS PW9DKE CU PW9DKE CS PW12DKE CU PW12DKE Enviromental Friendly For Refrigerant R410A Model 12 hour Timer Sett...

Page 3: ...oom Temperature Setting Temperature Setting 16 to 30 Auto Operation Timer Operation Selection Stop Start Operation Control set the ON OFF Timer hourly later Set Cancel Timer Operation Set timer Cancel...

Page 4: ...ng this button for 15seconds to start or end the Demonstration Mode Auto Switch Button Air quality Green Orange Red Anti freezing Control for the Evaporator Cooling or Soft Dry Operation Warm Booting...

Page 5: ...r 60 seconds It stops immediately with remote control ON OFF button Anti freezing operation for outdoor unit during Heating Mode Operation only Temperature of the condenser is tested by TRS Deicing Co...

Page 6: ...nner Diameter Length Height Width Depth Type Motor Type Rated output type Motor type Fan Speed Low Med High Rated Output Input Inch Inch Inch Inch mm m mm mm mm kg W W W rpm rpm rpm CS PW9DKE CU PW9DK...

Page 7: ...rculation Control Device Compressor Capacitor Fan Motor Capacitor Unit CS PW9DKE CU PW9DKE Length Circulation Inner Diameter mm c c g mm L min mm F V F V Evaporator Copper Slot type Plate fin configur...

Page 8: ...Length Height Width Depth Type Motor Type Rated output type Motor type Fan Speed Low Med High Rated Output Input Inch Inch Inch Inch mm m mm mm mm kg W W W rpm rpm rpm CS PW12DKE CU PW12DKE 3 40 3 80...

Page 9: ...Refrigerant Circulation Control Device Compressor Capacitor Fan Motor Capacitor Unit CS PW12DKE CU PW12DKE Length Circulation Inner Diameter mm c c g mm L min mm F V F V Evaporator Copper Slot type Pl...

Page 10: ...r Unit B A 254 631 382 118 131 95 420 50 Front View Back View Installation Plate Hook Gas Side Liquid Side Drain Port Air intake 280 Side view 183 Air outlet Left Piping Hole Right Piping Hole 100 141...

Page 11: ...Outdoor Unit CU PW9DKE Unit mm CU PW12DKE 11 CS PW9DKE CU PW9DKE CS PW12DKE CU PW12DKE 10cm or more 10cm or more 100cm or more 48 18 6 INVERTER 780 57 570 289 Top View 105...

Page 12: ...CS CU PW9DKE CS CU PW12DKE 5 Refrigeration Cycle Diagram INTAKE AIR SENSOR PIPING SENSOR 4 way valve PIPING SENSOR AIR QUALITY SENSOR Cooling Heating 12 CS PW9DKE CU PW9DKE CS PW12DKE CU PW12DKE...

Page 13: ...DKE 6 Block Diagram 13 CS PW12DKE CU PW12DKE CS PW9DKE CU PW9DKE CS PW12DKE CU PW12DKE F M F M 2 CR 3 4 1 RY HOT SSR SSR FUSE RY PWR OUTDOOR UNIT 4 Valve Compressor Piping Sensor INDOOR UNIT POWER SUP...

Page 14: ...V 50Hz STEPPING MOTOR OUTDOOR UNIT TERMINAL BOARD 1 L 2 N 3 4 1 L 2 N 3 4 OUTDOOR UNIT R RED BL BLACK B BLUE BR BROWN O ORANGE GRY GREY G GREEN Y YELLOW W WHITE Y G YELLOW GREEN P PINK YELLOW RED S BL...

Page 15: ...i Freezing Control If temperature of evaporator is lower than 2 continuously for 4 minutes the compressor will cease to prevent the evaporator from freezing Fan speed setting will not be changed When...

Page 16: ...perature reaches the set temp on remote control and then Soft Dry will be activated During Soft Dry Mode the fan of indoor unit will operate at super low speed The soft dry mode will run for less than...

Page 17: ...omp Indoor Fan Outdoor Fan Operation Indicator 6 6 6 1 6 1 1 4 Operation status Time Operate Stop Super Low Super Low Super Low Super Low Low 1 5 Cooling mode operation activated Intake Air temp 1 0 C...

Page 18: ...the speed at super low Compressor Stops Compressor Restarts 4 minutes later Indoor Heat Exchanger 65 Compressor Stops Compressor Restarts 3 minutes later Compressor runs 5 min T 5 last for 2 min T in...

Page 19: ...select Auto Fan Speed mode Indoor Fan Speed is between Me and Slo Me Lo Lo S Lo S Lo 45 41 34 30 45 41 34 30 38 30 28 15 38 30 28 15 Temperature of heat exchanger Temperature of heat exchanger Stop T...

Page 20: ...Time Delay Td deicing won t ends immediately Deicing Operation Time T 3 min 3min T 7min 7 min T 9min T 9min Deicing Operation Time T 3 min 3min T 7min 7 min T 9min T 9min Td s 0 60 120 180 Td s 0 60 1...

Page 21: ...ad deicing timer l m Warm booting control m r Overload control Out door fan stop for 60 accumulatively 20 20 51 Outdoor Heat Exchanger Outdoor Heat Exchanger 10 20 Basic time Compressor Indoor fan Out...

Page 22: ...or air temperature the operation is determined and operation continued at the mode determined If indoor temperature is less than 16 heating operation will immediately operate After the operation mode...

Page 23: ...ir quality sensor is always on during the operation of the air conditioner When the air conditioner stops The air conditioner is on standby the air conditioner will provide power to the air quality se...

Page 24: ...el 2 Red 0 1 2 G1 0 85 G2 0 60 Set the sensitivity number of the air quality sensor as 2 Standard A i r q u a l i t y becomes better A i r q u a l i t y becomes worse Detecting of air quality When the...

Page 25: ...vity control m ode 2 The previous sensitivity setting will be displayed in the temperature display 3 Press or button on the remote control to change the sensitivity 0 Turn off the air quality indicato...

Page 26: ...t O N O F F ON OFF 5 seconds 5 seconds 5 seconds 5 seconds 5 seconds 5 seconds 5 seconds Red Orange green Orange Green Orange Red 10 seconds 20 seconds 8 7 Ventilator Interlocking Unit Control Optiona...

Page 27: ...trol does not reach the signal receiver of the indoor unit the display of the remote control will not correspond with the actual ON OFF status of the indoor unit 27 8 9 Indoor Fan Motor Control Automa...

Page 28: ...ouver When temperature of indoor heat exchanger reaches 38 during heating mode operation if temperature falls to 35 airflow direction will change from the lower limit to horizontal Angles Of Airflow D...

Page 29: ...at a strong and firm location which is able to withstand the set s weight If the strength is not enough or installation is not properly done the set will drop and cause injury 5 For electrical work f...

Page 30: ...re there is ease for access for the power disconnection in case of emergency In some countries permanent connection of this room air conditioner to the power supply is prohibited 1 Power supply connec...

Page 31: ...t obstructed There should not be any animal or plant which could be affected by hot air discharged Keep the spaces indicated by arrows from wall ceiling fence or other obstacles Do not place any obsta...

Page 32: ...rding to the arrows marked on the lower left and right side of the installation plate The meeting point of the extended line is the centre of the hole Another method is by putting measuring tape at po...

Page 33: ...Ensure the hooks are properly seated on the installation plate by moving in left and right Hooks at installation plate Slee ve for piping hole Piping Drain hose Indoor unit Installation plate hook Un...

Page 34: ...vier cord Ensure the color of wires of outdoor unit and the terminal Nos are the same to the indoor s respectively Earth lead wire shall be longer than the other lead wires as shown in the figure for...

Page 35: ...sound will occur at the tenth sec in order to indicate the ON OFF changed over of remote control receiving sound 9 3 OUTDOOR UNIT 9 3 1 SELECT THE BEST LOCATION Refer to Select the best location sect...

Page 36: ...ir approximately ten minutes 4 Close the Low side valve of the charging set and turn off the vacuum pump Make sure that the needle in the gauge does not move after approximately five minutes Note BE S...

Page 37: ...ping 9 3 6 CONNECT THE CABLE TO THE OUTDOOR UNIT 1 Remove the control board cover from the unit by loosening the screw 2 Connecting cable between indoor unit and outdoor unit shall be approved polychl...

Page 38: ...e difference between the intake temperature and the discharge is more than 8 C during cooling operation or CHECK ITEMS Is there any gas leakage at flare nut connections Has the heat insulation been ca...

Page 39: ...n cause an oxygen deficiency if it leaks into a closed room since it collects in the lower area of the room It also generates toxic gas when it isdirectly exposed to a flame so it must be used in a we...

Page 40: ...a specialist Incorrect repairs can result in an water leakage electric shock fire etc 10 2 TOOL FOR INSTALLING SERVICING REFRIGERANT PIPING 10 2 1 Necessary Tools In order to prevent an R410A AC from...

Page 41: ...es Table 5 Conventional wrenches R410A wrenches For 1 4 opposite side x torque 17 mm x 18 N m 180 kgf cm 17 mm x 18 N m 180 kgf cm For 3 3 opposite side x torque 22 mm x 42 N m 420 kgf cm 22 mm x 42 N...

Page 42: ...e used with CFC and HCFC cannot be used with R410A because there is no chlorine in the refrigerant The present R134a leak detector can be used but the detection sensitivity will be lower setting the s...

Page 43: ...e manually by opening and closing the valve 9 Refrigerant cylinders The R410A cylinders are labeled with the refrigerant name and the coating color of the cylinder protector is pink which is the color...

Page 44: ...a conventional flaring tool use the copper pipe gauge for clearance adjustment etc to ensure the correct A dimension see Fig 10 Fig 10 Flaring dimensions 10 3 1 Piping Material s It is recommended tha...

Page 45: ...orque The tightening torque for R410A is the same as the conventional torque value for R22 Be careful because if the torque is too weak it may lead to a gas leak If it is too strong it may split the f...

Page 46: ...n or dried with a vacuum pump 10 4 INSTALLATION TRANSFERRING SERVICING 10 4 1 Inspecting Gas Leaks with a Vacuum Pump for New Installations Using New Refrigerant Piping 1 From the viewpoint of protect...

Page 47: ...eck Because of the different pressure characteristics of R22 and R410A the design pressure for the equipment is 1 6 times different the wall thickness of the piping must comply with that shown in Tabl...

Page 48: ...te the unit in the cooling mode while charging a little of the liquid at a time about 150 g time as a guideline If the charging amount is insufficient from one operation wait about one minute then use...

Page 49: ...may oxidize Especially when the interior of the refrigerant circuit oxidizes due to overheating scale occurs and stays in the circuit as dust thus exerting a fatally adverse effect So make brazing at...

Page 50: ...2 Removal Procedure For Intake Grille 1 Remove the two caps at the discharge port right and left Fig 3 2 Release the two screws under the both caps Fig 4 Removal Procedure For Front Grille Cap Fixing...

Page 51: ...lle 1 Separate the drain hose and the drain plate Fig 10 Fig 10 2 Pull out the discharge grille slightly Fig 11 Fig 11 3 Break off the earing release the holder slightly Be sure to avoid cracking of t...

Page 52: ...r to reset Resetting terminals Fig 16 1 Fig 12 Release the two fixing screws disassembly the fixing board from evaporator on the left side of the evaporator and pull out the whole evaporator 2 Loose t...

Page 53: ...rature More than 8 15 minutes afte an operation is started at the cooling mode Normal Measuring electric current during operation Measuring gas side pressure Less than 14 at the heating mode Value of...

Page 54: ...mes approximately 80 lower than the normal level The discharge tube of the compressor becomes abnormally hot normally 70 90 The difference between high pressure and low pressure becomes almost zero El...

Page 55: ...r off Set temperature 1 5 in difference Temperature setting Intake Air temperature 34 32 30 28 26 24 22 20 18 16 16 18 20 22 24 26 28 30 34 32 30 28 26 24 22 20 18 16 16 18 20 22 24 26 28 30 13 Techni...

Page 56: ...ength Characteristics 4 5 6 7 8 9 10 230V 16 15 14 1 05 1 00 0 95 0 90 0 85 2 8 2 6 2 4 2 2 5 0 4 0 3 0 I Current A Q Cooling capacity kW LP Gas side piping pressure Mpa O Outlet air temp PIPING LENGT...

Page 57: ...speed Piping length 7 5m 230V CS PW9DKE CU PW9DKE CS PW12DKE CU PW12DKE Piping Length Characteristics 57 CS CU PW12DKE Cooling characteristics Operation characteristics Outdoor temp Condition Room te...

Page 58: ...CS PW9DKE 14 Exploded View 34 1 3 4 38 2 26 33 17 5 24 31 32 28 25 30 32 31 29 11 13 9 12 27 22 19 15 8 23 14 20 21 16 35 58 18 CS PW12DKE 36 37 6 7 CS PW9DKE CU PW9DKE CS PW12DKE CU PW12DKE...

Page 59: ...ER SUPPLY CORD COMPLETE 1 CWA20C2362 CWA20C2362 18 TERMINAL BOARD 1 CWA28C2086 CWA28C2086 19 MAIN PCB 1 CWA743748 CWA743749 20 INDICATOR COMPLETE 1 CWE39C1124 CWE39C1124 21 INDICATOR HOLDER FRONT 1 CW...

Page 60: ...60 16 Exploded View 35 32 34 33 36 4 5 3 2 6 7 28 26 24 27 25 37 23 11 29 22 21 20 31 14 8 10 9 1 13 15 17 30 CU PW9DKE CU PW12DKE CS PW9DKE CU PW9DKE CS PW12DKE CU PW12DKE...

Page 61: ...15 2 WAY VALVE 1 CWB021191 CWB021191 17 3 WAY VALVE 1 CWB011231 CWB011231 20 OVER LOAD PROTECTOR 1 CWA121203 CWA121205 21 TERMINAL COVER 1 CWH17006 CWH17006 22 NUT TERMINAL COVER 1 7080300J 7080300J 2...

Page 62: ...U CN STM1 PH5 WHT L1 A431036 C17 0 047u 250VAC ECQ 1 1 2 2 SSR1 30 31 32 33 10 11 12 13 14 15 16 B1HBGFF0000 49 2SC3441 R37 270 2WS 48 R35 QS R36 10K 2K RY PWR 1 2 K6BLAGA00076 41 42 R7 43 1 2W R6 43...

Page 63: ...54D5 1MTB1 IC6 B1HBGFF00005 R54 10K 16IC6A 151C6B 141C6C 131C6D 121C6E 111C6F 101C6G RY HOT 1 2 3 4 5 6 7 127 126 125 121 122 123 124 1 4 4 4 SSR3 SSR2 SSR1 3 3 3 4 12V R53 33K 1K R52 BZ A48TFM25E SW1...

Page 64: ...41 40 39 J6 J5 J4 J3 J2 J1 A B SHORT A OPEN B 38 37 36 35 34 33 32 31 30 29 28 27 26 25 T 14 P T 15 P T 16 P T 17 P T 6 P T 19 P 24 23 T 18 P P71 12 13 14 15 16 17 18 19 20 21 22 T 9 P X1 R6 12k R4 2...

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