Panasonic CU-C12DKU manual

1 Features 2 2 Functions 3 3 Product Specification s 6 3.1. CS-C9DKU CU-C9DKU 6 3.2. CS-C12DKU CU-C12DKU 8 4 Dimensions 10 4.1. Indoor Unit & Remote Contro l 10 4.2. Outdoor Unit 11 5 Refrigeratio n Cycle Diagram 12 6 Block Diagram 13 7 Wiring Diagram 14 8 Operation Details 15 8.1. Cooling Opera tion 15 8.2. Soft Dry Operation 16 8.3. Autom ati[...]

10.5. Indoor unit 37 10.6. Outdoor unit 40 11 2-way, 3-way Valve 45 11.1. Evacuation of Installa tion 46 11.2. Pumpi ng down 47 11.3. Evacuation of Re-ins tallatio n 48 11.4. Balanc e refrigerant of the 2-way, 3-way valves 49 11.5. Evacuation 50 11.6. Gas charging 51 12 Servic ing Information 52 12.1. Distinction of Lead Free (PbF) Printed Circuit [...]

2 Functions ı 3 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

4 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

5 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

3 Product Specification s 3.1. CS-C9DKU CU-C9DKU Unit Indoor unit Outdoor unit Power Source (Phase , Voltag e, Cycle) ø, V, Hz Single, 115, 60 Cooling Capac ity kW (BTU/h ) 2.58 (8,800) Moisture Removal l/h (Pint/h) 1.0 (2.1) Airflow Method OUTLET INTAKE SIDE VIEW TOP VIEW Air Volum e Lo m 3 /min (cfm) 4.7 (164) - 4.7 (164) — Me m 3 /min (cfm) 5[...]

Unit Indoor unit Outdoor unit Therm ostat Electrical — Protection Device — 2 Stage Overload Protector Capilla ry Tube Length inch (mm) — 26-18/32 (675) Flow Rate l/min — 13.0 Inner Diameter inch (mm) — 20/32 (1.6) Air Filter Materi al Style P.P. Honey comb — Capacity Contro l Capilla ry Tube Compressor Capac itor µF, VAC — 35 µF, 37[...]

3.2. CS-C12DKU CU-C12DKU Unit Indoor unit Outdoor unit Power Source (Phase , Voltag e, Cycle) ø, V, Hz Single , 115, 60 Cooling Capac ity kW (BTU/h ) 3.60 (12,30 0) Moisture Removal l/h (Pint/h) 1.6 (3.4) Airflow Method OUTLET INTAKE SIDE VIEW TOP VIEW Air Volum e Lo m 3 /min (cfm) 5.6 (199) - 5.6 (199) — Me m 3 /min (cfm) 6.8 (238) - 6.8 (238) [...]

Unit Indoor unit Outdoor unit Capilla ry Tube Length inch (mm) — 16-23/32 (425) Flow Rate l/min — 18.0 Inner Diameter inch (mm) — 2/32 (1.7) Air Filter Materi al Style P.P. Honey comb — Capacity Contro l Capilla ry Tube Compressor Capac itor µF, VAC — 50 µF, 370VA C Fan Motor Capacitor µF, VAC 5.0 µF, 230VA C 8.0 µF, 230VA C Note: ?[...]

4 Dimensions 4.1. Indoor Unit & Remote Control 10 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

4.2. Outdoor Unit CU-C9DKU CU-C12DKU 11 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

5 Refrigeration Cycle Diagram CS-C9DKU CU-C9DKU CS-C12DKU CU-C12DKU 12 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

6 Block Diagram CS-C9DKU CU-C9DKU CS-C12DKU CU-C12DKU 13 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

CS-C9DKU CU-C9DKU CS-C12DKU CU-C12DKU REMARKS B : BLUE BR : BROWN BL : BLACK GRY : GRAY O : ORANGE P : PINK R : RED W : WHITE Y/G : YELLO W/GR EEN Power Supply Cord Resistance of Indoor Fan Motor Windings MODEL CS-C9DKU CS-C12DK U CONNECTIO N CWA9 21143 BLUE-YELLO W 82.4 Ω YELLOW - RED 103.4 Ω Note: Resistance at 68°F of ambie nt tempe rature.[...]

8 Operation Details 8.1. Cooling Operation • Cooling operation can be set using remote control. • This operation is applied to cool down the room temperature reaches the setting temperature set on the remote control. • The remote control setting temperature, which takes the reading of intake air temperature sensor, can be adjusted from 60.8°[...]

8.2.1. Soft Dry Operation Time Diagram 8.2. Soft Dry Operation • Soft Dry operation can be set using remote control. • Soft Dry operation is applied to dehumidify and to perform a gentle cooling to the room. • This operation starts when the intake air temperature sensor reaches the setting temperature on the remote control. • W hen operatio[...]

8.3. Automatic Operation • Automatic operation can be set using remote control. • This operation starts to operate with indoor fan at SLo speed for 20 seconds to judge the intake air temperature. • After judged the temperature, the operation mode is determined by referring to the below standard. • Then, the unit start to operate at determin[...]

8.4. Operation Control 8.4.1. Restart Control (Time Delay Safety Control) • W hen the thermo-off temperature (temperature which compressor stops to operate) is reached during:- − Cooling/Heating operation - the compressor stops for 3 minutes (minimum) before resume operation. − Soft Dry operation - the compressor stops for 6 minutes (minimum)[...]

8.4.5. Anti-Freezing Control • If the temperature of the indoor heat exchanger falls below 35.6°F continuously for 4 minutes or more, the compressor turns off. The fan speed setting remains the same. • This phenomenon is to protect the indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid form returning to t[...]

• Anti-Dew Formation is control by:- • Increasing Air Flow Volume 1. Lo fan speed. Lo fan speed is changed to Lo+ after 30 min to prevent dew formation. 2. QLo fan speed. Dew formation m ay occur at QLo cool, therefore QLo cool is operated only 1hr 30min (1 hr QLo, 30 min QLo + 80 rpm). After that, it operates at QLo + 160 rpm (However Quiet LE[...]

During Anti-Dew condensation prevention, Airflow Direction Manual Control angle change from 10°, 15°, 20°, 26°, 32° to 22°, 24°, 26°, 28°, 30°. 8.5. Indoor Fan Speed Control • Indoor Fan Speed can be set using remote control. 8.5.1. Fan Speed Rotation Chart Speed Fan Speed (rpm) CS-C9DKU CS-C12DK U SH i 1250 1310 Hi 1160 1280 Me 920 108[...]

8.5.2. Automatic Fan Speed Control • W hen set to Auto Fan Speed, the fan speed is adjusted between maximum and minimum setting as shown in the table. − Fan speed rotates in the range of Hi and Me. − Deodorizing Control will be activated. • Auto Fan Speed during cooling operation: 1. Indoor fan will rotate alternately between off and on as [...]

• W hen the vertical airflow direction is set to Auto using the remote control, the louver swings up and down as shown in the diagram. • W hen stop operation using the remote control, the discharge vent is reset, and stop at the closing position. • During Cooling operation or Soft Dry operation, indoor fan motor may stop to rotate at certain [...]

8.8. Horizontal Airflow Direction Control • The horizontal airflow direction louvers can be adjusted manually by hand. 8.9. Powerful Operation • The Powerful operation is to achieve the setting temperature quickly. • W hen Powerful operation is set, the setting temperature will be automatically decreased 5.4°F internally against the present [...]

8.10. Quiet Operation (For Cooling Operation or cooling region of Soft Dry Operation) • The Quiet operation is to provide quiet/cooling operation condition compare to normal operation. • Once the Quiet Mode is set at the remote control, the Quiet Mode LED illuminated. The sound level will reduce around 2 dB for Lo fan speed or 3 dB for Hi/Me fa[...]

8.11. Timer Control • There are 2 types of timer, ON and OFF timer. • Both ON and OFF timer can be set by pressing ON or OFF button respectively. • By pressing ON/OFF operation button, ON Timer or OFF Timer will not be cancelled. • To cancel the previous timer setting, press CANCEL button. • To activate the previous timer setting, press S[...]

8.14. Economy Mode Operation • Purpose of this operation is to save or reduced electrical power consumption of the room air conditioner. However consumer is advised to use Economy Mode operation after the room temperature reaches the desired temperature. 1. Cooling and Soft Dry Mode • W hen the Economy Mode is set, the set temperature will be a[...]

9 Operating Instruc tions 28 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

29 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

30 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

31 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

32 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

33 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

10 Installa tion Instructions Required tools for Installa tion Works 1. Philips screw driver 5. Spanner 9. Gas leak detector 13. Multimeter 2. Level gauge 6. Pipe cutter 10. Measuring tape 14. Torque wrench 13.3 lbf.ft 31.0 lbf.ft 40.6 lbf.ft 3. Electric drill, hole core drill (ø2 3/4”) 7. Reame r 11. Therm omete r 15. Vacuu m pump 4. Hexagonal [...]

1. The equipm ent must be earthe d and installe d with earth leakag e curren t breake r. It may cause electrical shock if ground ing is not perfect. 2. Do not install the unit at place where leakag e of flamm able gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire. 3. Carry out draina ge piping as mentio [...]

Applicable piping kit CZ-3F5, 7AEN (C9DK) CZ-4F5,7, 10AN (C12DK) 10.3. Select the best location INDOOR UNIT • There should not be any heat source or steam near the unit. • There should not be any obstacles blocking the air circulation. • A place where air circulation in the room is good. • A place where drainage can be easily done. • A pl[...]

10.5.1. SELECT THE BEST LOCATION (Refer to “Select the best location” section) 10.5.2. HOW TO FIX INSTALLATION PLATE The mounting wall is strong and solid enough to prevent it from the vibration. The wall must be able to withstand the weight of the unit. The centre of installation plate should be at more than 1723/32” at right and left of the[...]

10.5.4. INDOOR UNIT INSTALLATION 1. For the right rear piping 2. For the embedded piping (This can be used for left rear piping & left bottom piping also.) 38 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

10.5.5. INDOOR UNIT ELECTRICAL WIRING 1. Remove the control board metal cover. 2. Unscrew the conduit cover & fix the conduit connector to conduit cover with lock nut, then secure it against chassis. 3. Connecting wire between indoor unit and outdoor unit should bw UL listed or CSA approved 4 x AWG16 wire. • Ensure the color of wires of outdo[...]

HOW TO TAKE OUT FRONT GRILLE Please follow the steps below to take out front grille if necessary such as when servicing. 1. Open the intake grille and remove the screw at the front of the front grille. 2. Set the vertical airflow direction louver to the horizontal position. 3. Slide down the 2 caps on the front grille as shown in the illustration a[...]

10.6.3. CONNECTING THE PIPING Connecting The Piping To Indoor Unit Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe. (In case of using long piping) Connect the piping • Align the center of piping and sufficiently tighten the flare nut with fingers. • Further tighten the flare nut with t[...]

10.6.4. EVACUATION OF THE EQUIPMENT WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. • Be sure to connect the end of the charging hose with the push pin t[...]

10.6.5. OUTDOOR UNIT ELECTRICAL WIRING 1. Remove Top Panel. 2. Remove Control Board Cover (Metal & Resin). 3. Remove Plugs. CHECK THE DRAINAGE • Open front panel and remove air filters. (Drainage checking can be carried out without removing the front grille.) • Pour a glass of water into the drain tray- styrofoam. • Ensure that water flow[...]

CHECK ITEMS Is there any gas leakag e at flare nut conne ctions? Has the heat insulat ion been carried out at flare nut conne ction? Is the conne cting wiring being fixed to termin al board firmly? Is the conne cting wiring being clampe d firmly? Is the draina ge OK? (Refer to “Check the draina ge” section ) Is the earth wire conne ction proper[...]

11 2-way, 3-way Valve 2-way Valve (Liquid Side) 3- way Valve (Gas Side) Works Shaft Positio n Shaft Position Service Port Shippi ng Close Close Close (With valve cap) (With valve cap) (With cap) Evacuation Close Close Open (Installation and (Counter- Clockwise) (Clockwise) (Push-pin) Re-installa tion) Operation Open Open Close (With valve cap) (Wit[...]

WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of a 3-wa y valve. • Be sure to connect the end of the charging hose with the push pin to the service port. 2. Connect the ce[...]

11.2. Pumping down Procedure: 1. Confirm that both the 2-way and 3-way valves are se t to the opened position. • Remove the valve stem caps and confirm that the valve stems are in the opened position. • Be sure to use a hexagonal wrench to operate the valve stems. 2. Operate the unit for 10 to 15 minutes. 3. Stop operation and wait for 3 minute[...]

11.3. Evacuation of Re-installation WHEN REINSTALLIN G AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. • Be sure to connect the end of the charging hose with the push pi[...]

(Lack of refrigerant in the refrigeration cycle) Procedure: 1. Confirm that both the 2-way and 3-way valves are se t to the open position. 2. Connect the charge set to the 3- way valve’s service port. • Leave the valve on the charge set closed. • Connect the charge hose with the push-pin to the service port. 3. Connect the charge set’s cent[...]

11.5. Evacuation (No refrigerant in the refrigeration cycle) Procedure: 1. Connect the vacuum pump to the charge set’s centre hose. 2. Evacuation for approximatel y one hour. • Confirm that the gauge needle has moved toward -14.5 PSI (-76 cmHg) [vacuum of 4 mmHg or less.] 3. Close the valve (Low side) on the charge set, turn off the vacuum pump[...]

11.6. Gas charging (After Evacuation) Procedure: 1. Connect the charge hose to the charging cylinder. • Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. 2. Purge the air from the charge hose. • Open the valve at the bottom of the cylinder and press the check valve on the charge set [...]

• Electronic controller and Display Complete unit can be seen by following the below removal procedures. Fig. 1 − Remove the 2 caps and 2 screws at the bottom of the Front Grille.(Fig.1) Fig. 2 − Remove the Front Grille Complete. (Fig.2) Fig. 3 − Release the hooks on top and on the left side of Control Board Front Cover.(Fig.3) − Then rem[...]

Fig. 4 − Remove the indicator complete screw, and then remove the Indicator Complete.(Fig .4) Fig. 5 − To remove the electronic controller. − Remove the particular piece (Fig.5). − Release CN-FM connector (Fig.) − Release CN-FB connector (Fig.5) − Release CN-TH connector (Fig.5) − Release CN-STM1 connector (Fig.5) − Release CN-DISP [...]

• Remove Control Board cover Fig. 7 − Remove the screw on the left side of the unit. (Fig.7) − Pull the hook to the left and lift up the evaporator. (Fig. 7) − Pull down the Discharge Grille Complete. (Fig.7) Fig. 8 − Remove indoor pipe sensor and air intake sensor from the evaporator. (Fig.8) − Remove 2 screws on the right side of the [...]

12.4. Auto OFF/ON Button • The “Auto OFF/ON Button” (behind the front grille) is used to operate the air conditioner if remote control is misplaced or mulfunctioning . • Forced cooling operation is possible by pressing the “Auto OFF/ON Button” for more than 5s where “beep” sound is heard then release the button. • User able to sel[...]

• W hen the batteries are inserted for the first time or the batteries are replaced, you may notice the indications at remote control’s display screen blink continuously and not functionable. If this condition happens, try to reset the remote control by pushing the reset terminal with a pointing device. • You ma y also do the reset to erase t[...]

13.1. Refrigeration cycle system In order to diagnose malfunctions, make sure that there is no electrical problem before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of compressor or fan motor. The normal outlet air temperature and pressure of the refrigeration cycle d[...]

13.2. Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Condition of the air conditioner Low Pressu re High Pressu re Electric curren t during operat ion Insuffi cient refrige rant (gas leakage) Clogged capilla ry tube or Straine r Short circuit in the indoor unit Heat radiation deficie ncy of [...]

14 Techni cal Data 14.1. Thermostat characteristics 59 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

14.2. Operation characteristics 14.2.1. CS-C9DK CU-C9DK 60 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

61 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

14.2.2. CS-C12DK CU-C12DK 62 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

63 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

15 Explod ed View (Indoor Unit) Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbere d parts are not kept as standard service parts. 64 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

16 Replac ement Parts List (Indoor Unit) <Model: CS-C9DKU / CS-C12DKU > REF. NO. PART NAME & DESCRIPTION QTY. CS-C9DKU CS-C12DKU REMARKS 1 CHASSY COMPLETE 1 CWD50C1401 ← 0 2 FAN MOTOR, AC15W SINGLE 1 CWA921143 ← 0 3 CROSS FLOW FAN COMPLETE 1 CWH02C1031 ← 0 4 BEARING ASS’Y 1 CWH64K007 ← 0 5 SCREW - CROSS FLOW FAN 1 CWH4580304 ←[...]

17 Explod ed View (Outdoor Unit) CU-C9DK CU-C12DK Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbere d parts are not kept as standard service parts. 66 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

18 Replac ement Parts List (Outdoor Unit) <Model: CU-C9DKU / CU-C12DKU> REF. NO. PART NAME & DESCRIPTION QTY. CU-C9DKU CU-C12DKU REMARKS 1 CHASSY ASS’Y 1 CWD50K2055A ← 0 2 SOUND PROOF MATERIAL 1 CWG302125 ← 3 FAN MOTOR BRACKET 1 CWD541030 ← 4 SCREW - FAN MOTOR BRACKET 2 CWH551059 ← 5 FAN MOTOR, AC31W SINGLE 1 CWA951244 ← 0 6 S[...]

19 Electro nic Circuit Diagra m 19.1. Indoor Unit 1 2 3 4 C22 0.01 R58 10 k Auto SW R59 1k DISPLAY COMPLETE 9 CN-DISP CN-DISP 8 7 6 5 4 3 2 1 10 1 2 3 4 5 6 7 8 TIMER/AIR SW(ORG) POWER(GRN) QUIET(ORG) POWERFUL(ORG) C401 47 6.3V BZ01 BZ e c b Q0 1 C143XKT X R55 1k R1 2 1k C02 0.01 R88 5.1k ELECTRONIC CONTROL UNIT IC401 3 1 2 + CN-HA C23 0.01 R6 0 10[...]

3 XKTX R2 0 R2 1 R2 2 R2 3 R2 4 R2 5 D1 0 D0 9 D0 8 D0 7 D0 6 D0 5 R1 8 R1 9 D1 2 D1 1 P7 2 P7 3 P7 4 P75 P6 4 P65 P66 P67 P4 0 P4 1 P4 2 P4 3 P4 4 P4 5 P4 6 P4 7 P5 0 P5 1 RY-PWR DRIVE SIGNAL P5 2 P5 3 P5 4 P55 P56 P57 Vss0 VDD0 P3 0 P3 1 P3 2 P3 3 P3 4 P3 5 AN11 AN12 AN13 AN14 AN15 AN16 AN17 AV55 VDD 1 P2 5 P2 4 P2 3 SCK3 0 S030 S130 P3 6 46 41 4[...]

TEST R02 1k R01 10 k R32 150k 4.096 MHz (47pF X 2) R4 1 1k Q0 3 C143XKTX R44 1k C1 6 0.01 R37 10k 12 R38 JX1 C15 0.01 R43 R79 10k X0 1 CN-ION 4 3 2 1 C37 0.01 Q0 5 C2412KTX C10 0.1 16 V JP3 R49 1k JP4 C1 7 3300 35V C14 47 0 25 V C1 1 10 0 16 V IC03 G I 5V 12 V I G IC04 DB01 T01 5 8 13 2 REGULATOR REGULATOR + ~ ~ OO TEMPERATURE FUSE TO OUTDOOR RY-PW[...]

SCHEMA TIC DIAGRAM 4/4 C9DKU/C12DKU OUTDOOR UNIT TERMINAL W BR Y Y Y BR R F AN MOTOR R MAGNETIC RELA Y B B B GRY B COMPRESSOR 65 41 3L 2 L1 12 TO POWER SUPPL Y SOURCE TO OUTDOOR UNIT CAP ACIT OR CAP ACIT OR O VERLOAD PRO TECTOR Y 71 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

72 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

How to use electronic circuit diagram TIMER TABLE Test Mode Name Time (When test point Remarks Short-circuite d) Real Timer 1 hr. 1 min. 10 min. 10 sec. 1 min. 1 sec. Time Delay Safety Contro l 2 min. 58 sec. 0 sec. Forced Opera tion 60 sec. 0 sec. Time Save Contro l 7 min. 4.2 sec. Anti-Freezing 4 min. 0 sec. Auto Mode Judgement 20 sec. 0 sec. Sof[...]

19.2. Remote Control 74 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

19.3. Print Pattern Indoor Unit Printed Circuit Board 75 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

76 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU[...]

Indicator Printed Circuit Board 77 CS-C9DKU CU-C9DKU / CS-C12DKU CU- C12DKU [PHAAM] Printed in Malaysia[...]