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44

13.5. Freeze Preventive Control

• To protect indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid form return to compressor.
• This control will activate when the temperature of indoor heat exchanger falls below 2

°

C continuously for more than 4 minutes

and compressor turn off.

• The current fan speed will change to freeze prevention speed after 70 seconds compressor on. The fan speed will be increased

according to the indoor pipe temperature the figure below:

• Restart control (Time Delay Safety Control) will be applied in this control if the recovery time is too short.

13.6. Compressor Reverse Rotation Protection Control

• If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and indoor

heat exchanger is 2.5

°

C or less for continuous 2 minutes, compressor will stop and restart automatically.

• Time Delay Safety Control is activated before the compressor restart.

• This is to prevent compressor from rotate reversely when there is an instantaneous power failure.

Содержание CS-C12HKD

Страница 1: ...14 6 Refrigeration Cycle Diagram 15 7 Block Diagram 16 8 Wiring Connection Diagram 17 8 1 CS C7HK CU C7HK CS C9HK CU C9HK CS C12HK CU C12HK 17 9 Electronic Circuit Diagram 18 10 Printed Circuit Board 19 10 1 Indoor Unit 19 11 Installation Instruction 23 11 1 Select The Best Location 23 11 2 Indoor Unit 24 11 3 Outdoor Unit 26 12 Operation Control 29 12 1 Cooling Operation 29 12 2 Soft Dry Operatio...

Страница 2: ... 45 14 Servicing Mode 46 14 1 Auto OFF ON Button 46 14 2 Select Remote Control Transmission Code 46 14 3 Remote Control Button 47 15 Troubleshooting Guide 48 15 1 Refrigeration cycle system 48 16 Disassembly and Assembly Instructions 50 16 1 Indoor Electronic Controllers and Control Board Removal Procedures 50 16 2 Indoor Fan Motor and Cross Flow Fan Removal Procedures 52 17 Technical Data 54 17 1...

Страница 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...

Страница 4: ... heated too high about 1100 F 600 C 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...

Страница 5: ...ISO 4GDID 290cm3 Refrigerant Charged R22 kg oz 0 45 15 9 Dimension Height mm inch 280 11 1 32 510 20 3 32 Width mm inch 799 31 15 32 650 25 19 32 Depth mm inch 183 7 7 32 230 9 1 16 Net Weight kg lbs 9 20 22 49 Pipe Diameter Gas mm inch 9 52 3 8 Liquid mm inch 6 35 1 4 Height Difference m ft 5 16 4 Pipe Length Range m ft 3 9 8 10 32 8 Additional Gas Amount g m oz ft 10 0 1 Refrigeration Charge Les...

Страница 6: ...e V 220 240 Hz 50 50 Input power W 590 640 Starting Current A 12 4 12 4 Running Current Cooling A 2 8 2 9 Maximum Current A 3 4 3 4 Power Factor Cooling 96 92 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 ...

Страница 7: ... 350cm3 Refrigerant Charged R22 kg oz 0 49 17 3 Dimension Height mm inch 280 11 1 32 510 20 3 32 Width mm inch 799 31 15 32 650 25 19 32 Depth mm inch 183 7 7 32 230 9 1 16 Net Weight kg lbs 9 20 25 55 Pipe Diameter Gas mm inch 9 52 3 8 Liquid mm inch 6 35 1 4 Height Difference m ft 5 16 4 Pipe Length Range m ft 3 9 8 10 32 8 Additional Gas Amount g m oz ft 10 0 1 Refrigeration Charge Less m ft 7 ...

Страница 8: ...gle V 220 240 Hz 50 50 Input power W 800 835 Starting Current A 18 18 Running Current Cooling A 3 8 3 7 Maximum Current A 4 9 4 9 Power Factor Cooling 96 94 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 ...

Страница 9: ...D 410cm3 Refrigerant Charged R22 kg oz 0 49 17 3 Dimension Height mm inch 280 11 1 32 510 20 3 32 Width mm inch 799 31 15 32 650 25 19 32 Depth mm inch 183 7 7 32 230 9 1 16 Net Weight kg lbs 9 20 27 60 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 ...

Страница 10: ... Single V 220 240 Hz 50 50 Input power kW 1 11 1 15 Starting Current A 26 26 Running Current Cooling A 5 3 5 2 Maximum Current A 7 0 7 0 Power Factor Cooling 95 92 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 Inner Protector ...

Страница 11: ...10 meters CS CU C12HK long piping up to 15 meters 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 provid...

Страница 12: ...12 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 ...

Страница 13: ...13 5 Dimensions 5 1 Indoor Unit Remote Control 5 1 1 CS C7HK CS C9HK CS C12HK ...

Страница 14: ...14 5 2 Outdoor Unit 5 2 1 CU C7HK CU C9HK CU C12HK ...

Страница 15: ...15 6 Refrigeration Cycle Diagram ...

Страница 16: ...16 7 Block Diagram ...

Страница 17: ... Windings Note Resistance at 20 C of ambient temperature Note Resistance at 20 C of ambient temperature MODEL CS C7HK CS C9HK CS C12HK CONNECTION A921324 BLUE YELLOW 371 0 Ω YELLOW RED 386 6 Ω MODEL CU C7HK CU C9HK CU C12HK CONNECTION CWA951378J CWA951534 CWA951534 BLUE YELLOW 287 Ω 367 Ω 367 Ω YELLOW RED 238 Ω 270 Ω 270 Ω MODEL CU C7HK CU C9HK CONNECTION 2RS122D5BG02 2PS156D3DA02 C R 5 193 Ω 4 22...

Страница 18: ...18 9 Electronic Circuit Diagram ...

Страница 19: ...19 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board TOP VIEW ...

Страница 20: ...20 BOTTOM VIEW ...

Страница 21: ...21 10 1 2 Power Printed Circuit Board TOP VIEW BOTTOM VIEW ...

Страница 22: ...22 10 1 3 Indicator TOP VIEW BOTTOM VIEW ...

Страница 23: ...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 the ...

Страница 24: ...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...

Страница 25: ...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 ...

Страница 26: ... 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...

Страница 27: ...connect the end of the charging hose with the push pin to the service port 2 Connect the center hose of the charging set to a vacuum pump 3 Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg 0 MPa to 76 cmHg 0 1 MPa Then evacuate the air approximately ten minutes 4 Close the Low side valve of the charging set and turn off the vacuum pump Make s...

Страница 28: ...entioned 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 thickness 6mm or above CAUTION If gauge needle does not move from 0 cmHg 0 MPa to 76 cmHg 0 1 MPa in step 3 above take the following mea...

Страница 29: ...e 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 C to 30 C During cooling operation the compressor will stop running and restart as shown in figure below 12 1 1 Cooling Operation Time Diagram ...

Страница 30: ...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 figure below 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...

Страница 31: ... 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...

Страница 32: ...n 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 C7HKD CS C9HKD CS C12HKD S Hi 1240 1320 1320 Hi 1150 1250 1270 Me 1000 1040 1060 H Lo 940 890 960 C Lo 850 800 900 Lo 780 750 850 S Lo 750 700 820 Q Hi 1040 1150 1170 Q Me 900 940 960 Q Lo 750 700 800 ...

Страница 33: ...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...

Страница 34: ...hen 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 3 C internally against th...

Страница 35: ...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...

Страница 36: ...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...

Страница 37: ...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...

Страница 38: ...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...

Страница 39: ...ately 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 erro...

Страница 40: ...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 ...

Страница 41: ... e ion 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 T...

Страница 42: ...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 ...

Страница 43: ... and the intake air temperature falls between the compressor ON temperature and compressor OFF temperature during the period This phenomenon is to reduce the built up humidity inside a room 13 3 60 Seconds Forced Operation Once the air conditioner is turned on the compressor will not stop within 60 seconds in a normal operation although the intake air temperature has reached the thermo off tempera...

Страница 44: ...increased according to the indoor pipe temperature the figure below Restart control Time Delay Safety Control will be applied in this control if the recovery time is too short 13 6 Compressor Reverse Rotation Protection Control If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and indoor heat exchanger is 2 5 C or less for continu...

Страница 45: ... 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 but no change in normal cooling mode The angle of horizontal louver will be changed as table below Dew prevention stop condition Remote control setting temperature is more than 25 C Fan speed is not set to CLo or QLo Select Po...

Страница 46: ...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...

Страница 47: ...d 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 ...

Страница 48: ... 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 ...

Страница 49: ...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 90 C The difference between high pre...

Страница 50: ...s WARNING Cautions When handling electronic controller be careful of electrostatic discharge Be sure to return the wiring to its original position There are many high voltage components within the heat sink cover so never touch the interior during operation Wait at least two minutes after power has been turned off ...

Страница 51: ...51 ...

Страница 52: ...52 16 2 Indoor Fan Motor and Cross Flow Fan Removal Procedures ...

Страница 53: ...53 ...

Страница 54: ...54 17 Technical Data 17 1 Thermostat Characteristics Cooling Soft Dry ...

Страница 55: ...55 17 2 Operation Characteristics 17 2 1 CS C7HK CU C7HK ...

Страница 56: ...56 ...

Страница 57: ...57 17 2 2 CS C9HK CU C9HK ...

Страница 58: ...58 ...

Страница 59: ...59 17 2 3 CS C12HK CU C12HK ...

Страница 60: ...60 ...

Страница 61: ...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 ...

Страница 62: ...N 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 CWA28C2314 CWA28C2311 23 P S CORD W OUT PLUG 1 CWA20C2590 24 ELECTRONIC CONTROLLER MAIN 1 CWA73C2986 CWA73C2983 CWA73C2995 25 ELECTRONIC CONTROLLER POWER 1 CWA744527W 26 SENSOR COMPLETE 1 CWA50C2122 CWA50C2401 27 CONTROL BOARD FRONT COVER 1 ...

Страница 63: ...63 18 2 Outdoor Unit 18 2 1 CU C7HK CU C9HK CU C12HK 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 ...

Страница 64: ...Y TUBE ASS Y 1 CWB15K1141 CWB15K1178 CWB15K1202 14 STRAINER 1 CWB11025 15 HOLDER COUPLING 1 CWH351047 16 2 WAY VALVE LIQUID 1 CWB021217 0 17 3 WAY VALVE GAS 1 CWB011257 CWB011488 0 18 OVERLOAD PROTECTOR 1 CWA121050J CWA121091J CWA121251 19 HOLDER O L P 1 CWH7041200 20 TERMINAL COVER 1 CWH171011 21 NUT TERMINAL COVER 1 CWH7080300J 22 SOUND PROOF BOARD 1 CWH151074 0 23 TERMINAL BOARD ASS Y 1 CWA28K1...

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