Panasonic CS-C12HKF Service Manual Download Page 25 | Manualshive

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12 Operation and Control

12.1. 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 16

q

C to

30

q

C.

• During cooling operation, the compressor will stop running and restart as shown in below figure.

12.1.1.

Cooling Operation Time Diagram

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Summary of Contents for CS-C12HKF

Page 1: ...ction Diagram 13 8 1 CS C12HK CU C12HK 13 9 Electronic Circuit Diagram 14 10 Printed Circuit Board 15 10 1 Indoor Unit 15 11 Installation Instruction 19 11 1 Select The Best Location 19 11 2 Indoor Unit 20 11 3 Outdoor Unit 22 12 Operation and Control 25 12 1 Cooling Operation 25 12 2 Soft Dry Operation 26 12 3 Automatic Operation 27 12 4 Indoor Fan Speed Control 28 12 5 Outdoor Fan Speed Control ...

Page 2: ... OFF ON Button 41 14 2 Select Remote Control Transmission Code 41 14 3 Remote Control Button 42 15 Troubleshooting Guide 43 15 1 Refrigeration cycle system 43 16 Disassembly and Assembly Instructions 45 16 1 Indoor Electronic Controllers Cross Flow Fan and Fan Motor Removal Procedures 45 17 Technical Data 50 17 1 Thermostat Characteristics 50 17 2 Operation Characteristics 51 17 3 Cooling Capacity...

Page 3: ...al shock and fire in case equipment breakdown or insulation breakdown 7 Use the specified cable and connect tightly for indoor outdoor connection Connect tightly and clamp the cable so that no external force will be acted on the terminal If connection or fixing is not perfect it will cause heat up or fire at the connection 8 Wire routing must be properly arranged so that control board cover is fix...

Page 4: ... heated too high about 1100qF 600qC 7 Power supply connection to the conditioner Connect the power supply cord of the air conditioner to the mains using one of the following methods Power supply point shall be the place where 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 prohibite...

Page 5: ...frigerant Charged R22 kg oz 0 87 30 7 Dimension Height mm inch 280 11 1 32 540 21 1 4 Width mm inch 799 31 15 32 780 30 23 32 Depth mm inch 183 7 7 32 289 11 3 8 Net Weight kg lbs 9 20 37 82 Pipe Diameter Gas mm inch 12 70 1 2 Liquid mm inch 6 35 1 4 Height Difference m ft 5 16 4 Pipe Length Range m ft 3 9 8 15 49 2 Additional Gas Amount g m oz ft 10 0 1 Refrigeration Charge Less m ft 7 5 24 6 Dra...

Page 6: ... 220 240 Hz 50 50 Input power kW 1 13 1 16 Starting Current A 29 5 29 5 Running Current Cooling A 5 3 5 1 Maximum Current A 7 5 7 5 Power Factor Cooling A 97 95 Power factor means total figure of compressor indoor fan motor and outdoor fan motor Power Cord Number of core 3 1 5mm Length m ft 2 6 Thermostat Protection Device 2 Stage Overload Protector ...

Page 7: ...g up to 15 meter Easy to use remote control Quality Improvement Random auto restart after power failure for safety restart operation Gas leakage protection Prevent compressor reverse cycle Inner protector to protect compressor Noise prevention during soft dry operation Blue coated condenser for high resistance to corrosion Operation Improvement Quiet mode to reduce the indoor unit operating sound ...

Page 8: ...8 4 Location of Controls and Components 4 1 Product Overview 4 1 1 Indoor Unit 4 1 2 Outdoor Unit 4 1 3 Remote Control ...

Page 9: ...9 5 Dimensions 5 1 Indoor Unit Remote Control 5 1 1 CS C12HK ...

Page 10: ...10 5 2 Outdoor Unit 5 2 1 CU C12HK ...

Page 11: ...11 6 Refrigeration Cycle Diagram ...

Page 12: ...12 7 Block Diagram ...

Page 13: ...utdoor Fan Motor Windings Note Resistance at 25qC of ambient temperature Resistance of Compressor Windings Note Resistance at 20qC of ambient temperature MODEL CU C12HK CONNECTION CWA921181J BLUE YELLOW 390 0 YELLOW RED 394 6 MODEL CU C12HK CONNECTION CWA951120J BLUE YELLOW 200 4 YELLOW RED 252 5 MODEL CU C12HK CONNECTION 2KS210D5BA02 C R 1 930 C S 2 449 ...

Page 14: ...14 9 Electronic Circuit Diagram ...

Page 15: ...15 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board TOP VIEW ...

Page 16: ...16 BOTTOM VIEW ...

Page 17: ...17 10 1 2 Power Printed Circuit Board TOP VIEW BOTTOM VIEW ...

Page 18: ...18 10 1 3 Indicator TOP VIEW BOTTOM VIEW ...

Page 19: ...ful that heat radiation from the condenser is not 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 obstacles which may cause a short circuit of the discharged air If piping length is over the rated length additional refrigerant should be added as shown in ...

Page 20: ...od is by putting measuring tape at position as shown in the diagram above The hole centre is obtained by measuring the dis tance namely 150 mm and 125 mm for left and right hole respectively Drill the piping hole at either the right or the left and the hole should be slightly slanted to the outdoor side 11 2 2 To Drill A Hole In The Wall And Install A Sleeve Of Piping 1 Insert the piping sleeve to...

Page 21: ...r the embedded piping Pull out the piping and drain hose How to keep the cover Insert the connecting cable Install the Indoor unit Secure the Indoor Unit This can be used for left rear piping left bottom piping also ...

Page 22: ... the cord from the anchorage Secure the cable onto the control board with the holder clamper 11 3 Outdoor Unit 11 3 1 Install The Outdoor Unit After selecting the best location start installation according to Indoor Outdoor Unit Installation Diagram 1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut ø10 mm 2 When installing at roof please consider strong wind and earthqu...

Page 23: ...oid the metal powder entering the pipe 3 Please make flare after inserting the flare nut onto the copper pipes 11 3 3 Air Purging Of The Pipings And Indoor Unit The remaining air in the Refrigeration cycle which contains moisture may cause malfunction on the compressor 1 Remove the caps from the 2 way and 3 way valves 2 Remove the service port cap from the 3 way valves 3 To open the valve turn the...

Page 24: ...ver back to the original position with the screw 11 3 5 Pipe Insulation 1 Please carry out insulation at pipe connection portion as mentioned in Indoor Outdoor Unit Installation Diagram Please wrap the insulated piping end to prevent water from going inside the piping 2 If drain hose or connecting piping is in the room where dew may form please increase the insulation by using POLY E FOAM with thi...

Page 25: ...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 16qC to 30qC During cooling operation the compressor will stop running and restart as shown in below figure 12 1 1 Cooling Operation Time Diagram ...

Page 26: ...egins Soft Dry will be switched ON for a maximum 10 minutes then Soft Dry operation will be turned OFF for a minimum 6 minutes After that the Soft Dry operation will be ON and OFF based on the setting temperature as shown in below figure However after 3 minutes of compressor off during Soft Dry OFF within 6 minutes Soft Dry restart control the indoor unit will start to operate at normal Cooling mo...

Page 27: ... at determined operation mode until it is switched off using remote control with the setting temperature as shown in below table The setting temperature for all the operations can be changed one level up or one level down from the standard temperature as shown in below table by pressing on the temperature up or temperature down button at remote control The operation mode judging temperature and st...

Page 28: ...c Fan Speed Control When 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 Speed Fan Speed rpm CS C12HKF S Hi 1320 Hi 1270 Me 1060 H Lo 960 C Lo 900 Lo 850 S Lo 820 Q Hi 1170 Q Me 960 Q Lo 800 ...

Page 29: ...ser noise environment after 70 seconds from the restart of compressor Auto Fan Speed during Soft Dry operation 1 Indoor fan will rotate alternately between off and Lo 2 At the beginning of each compressor start operation indoor fan will increase fan speed gradually for deodorizing purpose 3 When compressor at turn off condition for 6 minutes indoor fan will start fan speed at Lo to circulate the a...

Page 30: ...en stop operation using the remote control the discharge vent is reset and stop at the closing position 12 7 Horizontal Airflow Direction Control The horizontal airflow direction louvers can be adjusted manually by hand 12 8 Powerful Operation To achieve the setting temperature quickly When Powerful operation is set the setting temperature will be automatically decreased 3qC internally against the...

Page 31: ...Hi Me fan speed against the present operation sound level Dew formation become severe at Quiet Lo cool therefore Quiet Lo cool is operated only 1hr 30 min 1hr QLo 30 min QLo 50 rpm After that it goes back to Lo cool However Quiet LED remains on Manual Airflow Direction RPM control during Lo cool RPM control during Hi Me cool Auto Fan Speed Quiet operation stops when Quiet button is pressed again S...

Page 32: ...FF Timer setting will not be cancelled 2 To cancel the previous timer setting press CANCEL button 3 To activate the previous timer setting press SET button 4 If main power supply is switched off the Timer setting will be cancelled 12 11 Random Auto Restart Control If there is a power failure during operation the air conditioner will automatically restart after 3 to 4 minutes when the power is resu...

Page 33: ...oling only operation Patrol button is pressed Patrol operation stop condition when any of the following condition is fulfilled When OFF ON button is pressed During any operation with Patrol Patrol button is pressed again When e ion button is pressed When OFF Timer activates Patrol operation disable To disable the Patrol Operation during unit start default with OFF ON button press Patrol button and...

Page 34: ...ndard Default Air 3 High Sensitivity 3 Confirm setting by pressing Timer Set button LCD returned to original display after 2 seconds 4 LCD returned to original display if remote control does not operate for 30 seconds e ion Control e ion operation starts condition When dirtiness at level 2 Patrol LED turns red 2 minutes after stabilization time Patrol LED turns red 4 hours at level 0 Patrol LED tu...

Page 35: ...y During combination operation if power failure occurs after power resumes combination operation resume immediately Error Detection Control The Patrol error detection control starts once the power is supplied to Patrol sensor However the error will display when the Patrol operation is ON Error detection method 1 If the Patrol sensor is opened circuit continuously for 6 hours Patrol sensor error oc...

Page 36: ...Patrol button is pressed When OFF Timer activates e ion operation pause condition When indoor fan stop during deice odor cut control thermostat off etc e ion operation resume after indoor fan restarts When indoor intake temperature 40 C e ion operation resume after indoor intake temperature 40 C continuously for 30 minutes Indoor fan control During any operation mode combines with e ion operation ...

Page 37: ...on individual operation if power failure occurs after power resumes e ion individual operation resumes immediately During combination operation if power failure occurs after power resumes combination operation resume immediately e ion operation status is not memorized after OFF the unit After OFF when the operation is ON again air conditioner operates without e ion operation e ion Check Mode To ch...

Page 38: ...tely despite the 24 times counter Troubleshooting Method Press e ion button or OFF ON button to stop the operation and check the e ion AIR PURIFYING SYSTEM main connector to PCB After that press e ion button again to confirm the e ion indicator not blinking The 24 times counter will be clear after 10 minutes of normal operation or when operation stops Error Reset Method Press OFF ON button to OFF ...

Page 39: ...re has reached the thermo off temperature However force stop by pressing the OFF ON operation button at the remote control is permitted The reason for the compressor to force operate at minimum 60 seconds is to allow the refrigerant oil run in a full cycle and return back to the outdoor unit 13 4 Starting current Control When the compressor outdoor fan motor and indoor fan motor are simultaneously...

Page 40: ... This control start if Cooling mode or Quiet mode is activated Remote Control setting temperature is less than 25qC Fan speed is at CLo or QLo Room temperature is constant 1qC for 30 minutes Compressor is continuously running Fan speed and angle of horizontal louver vertical airflow angle will be adjusted accordingly in this control Fan speed will be increased slowly if the unit is in quiet mode b...

Page 41: ...occur at to identify the starting of Remote Control Receiving Sound Off On Mode Press Auto OFF ON button to toggle remote control receiving sound Short beep Turn ON remote control receiving sound Long beep Turn OFF remote control receiving sound After Auto OFF ON Button is pressed the 20 seconds counter for Remote Control Receiving Sound OFF ON Mode is restarted 14 2 Select Remote Control Transmis...

Page 42: ... will be heard LCD returns to original display after 2 seconds LCD returns to original display if remote control does not operate for 30 seconds 14 3 2 CLOCK BUTTON To change the remote control s time format Press for more than 5 seconds 14 3 3 RESET RC To clear and restore the remote control setting to factory default Press once to clear the memory 14 3 4 TIMER To change indoor unit indicator s L...

Page 43: ... problems before inspecting the refrigeration cycle Such problems include insufficient insulation problem with the power source malfunction of a compressor and a fan The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions the standard values for them are shown in the table to the right ...

Page 44: ...logged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient compression Nature of fault Symptom Electric current during operation becomes approximately 20 lower than the normal value Insufficient compressing of a compressor The discharge tube of the compressor becomes abnormally hot normally 70 to 90qC The difference between high pre...

Page 45: ...l Procedures 16 1 1 To remove front grille 16 1 2 To remove power electronic controller WARNING High Voltage is generated in the electrical parts area by the capacitor Ensure that the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks ...

Page 46: ...46 ...

Page 47: ...47 16 1 3 To remove discharge grille 16 1 4 To remove control board ...

Page 48: ...48 16 1 5 To remove cross flow fan and indoor fan motor ...

Page 49: ...49 ...

Page 50: ...50 17 Technical Data 17 1 Thermostat Characteristics Cooling Soft Dry ...

Page 51: ...51 17 2 Operation Characteristics 17 2 1 CS C12HK CU C12HK ...

Page 52: ...52 ...

Page 53: ...822 1 0626 32 19 3 9546 3 6648 0 9790 3 8160 3 5712 1 0626 3 6000 3 3692 1 1368 22 4 2869 3 2915 1 0950 4 1429 3 2551 1 1878 3 9211 3 1568 1 2714 Indoor Air Temperature entering Condenser qC D B Model Power Ambient 40qC 43qC 55qC Source Temp TC SHC IPT TC SHC IPT TC SHC IPT D B W B KW KW KW KW KW KW KW KW KW 17 3 1349 2 1096 1 1971 2 9466 2 0423 1 2667 2 5146 1 6373 1 5524 23 19 3 3894 1 8090 1 26...

Page 54: ...54 ...

Page 55: ...8 Exploded View and Replacement Parts List 18 1 Indoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Page 56: ...DRAIN TRAY 1 CWH521096 19 HORIZONTAL VANE COMPLETE 1 CWE24C1183 20 BACK COVER CHASSIS 1 CWD932454 21 CONTROL BOARD CASING 1 CWH102321 22 TERMINAL BOARD COMPLETE 1 CWA28C2311 23 P S CORD W OUT PLUG 1 CWA20C2552 24 ELECTRONIC CONTROLLER MAIN 1 CWA73C2975 25 ELECTRONIC CONTROLLER POWER 1 CWA744978W 26 SENSOR COMPLETE 1 CWA50C2122 27 CONTROL BOARD TOP COVER 1 CWH131207 28 INDICATOR COMPLETE 1 CWE39C11...

Page 57: ...57 18 2 Outdoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Page 58: ...STRAINER 1 CWB111011 15 HOLDER COUPLING 1 CWH351023 16 2 WAY VALVE LIQUID 1 CWB021362 17 3 WAY VALVE GAS 1 CWB011482 18 OVERLOAD PROTECTOR 1 CWA121202J 19 HOLDER O L P 1 CWH7041200 20 TERMINAL COVER 1 CWH171011 21 NUT TERMINAL COVER 1 CWH7080300J 22 SOUND PROOF BOARD 1 CWH151023 23 TERMINAL BOARD ASS Y 1 CWA28K1064J 24 CAPACITOR COM 30PF 370V 1 F0GAH356A001 25 HOLDER CAPACITOR 1 CWH30060 26 CAPACI...

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