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akira AC-S10CK Service Manual Download Page 46

 

 

   

46

 

 

                                                

 

 

Model No: 

AC-S10CK_S10HK

                                        

Version 1.0 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is the measured 

value approx. 
17.0 V AC?

 

Is the connecting 

cord correctly 

connected?

 

Correct the 

connecting 

cord correctly

 

Use a tester to measure 

the voltage between “L” 

and “N” of terminal 

board on the  

outdoor unit

 

Check the electric 

circuit on the outdoor 

unit

 

Is the fuse 

down?

 

Replace the transformer 

with a new one.

 

Replace the fuse and 

varister with new ones

 

Yes 

 Correct 

 power supply 

 between “L” and “N” 
of terminal board? 

Yes

 

Replace the control P.C.B. 

with a new one.

 

Measure the secondary 

voltage of transformer

 

The machine does not function 

at all with remote controller and 

EMERGENCY button on the  
indoor unit.

 

None of the three 

LEDs is ON

 

Summary of Contents for AC-S10CK

Page 1: ...A A Ai i ir r r C C Co o on n nd d di i it t ti i io o on n ne e er r r S S Se e er r rv v vi i ic c ce e e M M Ma a an n nu u ua a al l l ...

Page 2: ...2 Model No AC S10CK_S10HK Version 1 0 M M Mo o od d de e el l l G G Gr r ro o ou u up p p A A AC C C S S S1 1 10 0 0 Model AC S10CK AC S10HK ...

Page 3: ...S10HK Version 1 0 Content Feature 4 Specifications 5 Operating range 5 Remote control 7 Refrigeration cycle 10 Operation details 12 Installation 22 2 way 3 way valve 33 Trouble shooting 41 Exploded drawing 49 Part list 52 ...

Page 4: ...in accordance to the room temperature At the start the appliance operates at high fan speed As the room temperature gets closer to the set temperature the fan switches to a lower speed for quieter operation FAN SPEED HIGH MEDIUM LOW 1 The appliance can set at different indoor fan motor speed by pressing the FAN SPEED button on the remote controller 2 When this symbol is being displayed on the LCD ...

Page 5: ...operation test condition is as following Indoor DB WB temperature 27o C 19o C outdoor DB WB temperature 35o C 24o C l The rated heating operation test condition is as following l indoor DB WB temperature 20o C Max 15o C l outdoor DB WB temperature 7 o C 6o C 2 TEMPERATURE RANGE FOR T3 CLIMATE AIR CONDITIONER l The preset temperature of the appliance ranges from 18o C to 32o C l The ambient tempera...

Page 6: ... i ndoor unit and outdoor unit is 15m and the maximum elevation difference between indoor and outdoor units are 5m l If the refrigerant piping is longer than 7m additional refrigerant charge 20g m for below 1 2 inch gas pipe and 30g m for below 5 8 or 3 4 inch gas pipe is advis able l Outside diameter of the refrigerant piping is as following Models OD of liquid pipe small pipe OD of gas pipe larg...

Page 7: ...mote controller transmits signals to the system 1 ON OFF BUTTON l The appliance will be started when it is energized or will be stopped when it is in operation if you press this button 2 MODE BUTTON l Used to select the type of operation mode COOLING mode 9 5 3 8 4 2 7 6 1 ...

Page 8: ...R mode 5 SWING BUTTON l Press to adjust airflow direction 6 SMART BUTTON l Used to enter fuzzy logic operation directly regardless of the unit is on or off 7 TIMER SET CANCEL BUTTON l Used to set or cancel the timer operation 8 SLEEP BUTTON l Used to set or cancel SLEEP mode operation during COOLING HEATING DRY or SMART mode operation 9 SUPER BUTTON l Used to start or stop the fast cooling Fast co...

Page 9: ...rsion 1 0 Indication symbols on LCD Signal transmit Smart indicator Dry indicator Fan only indicator Sleep indicator Heating indicator Cooling indicator Super indicator High fan speed Medium fan speed Low fan speed Auto fan speed ...

Page 10: ...K Version 1 0 CHAPTER 5 REFRIGERATION CYCLE 1 Cooling only appliance Ö ÆÀ ä Ï µ Í Í I ndoor uni t evaporator l i quid side gas si de 3 way val v e 2 way val v e O u tdoor uni t accum ul ator com pressor condenser capi l l a r y ...

Page 11: ... 1 0 2 Heat pump Ê õ Î Ê ý I ndoor uni t evaporator l i quid side gas si de 3 way valve 2 way valve check valve O u tdoor uni t accum ul ator com pressor condenser reverse valve capi l l a r y heating cooling defrost Flow of refrigerant ...

Page 12: ...indoor pipe temperature falls below 1o C during COOLING or DRY operation for 3 minutes the compressor and outdoor fan motor turn OFF with buzzer 3 beeps When the indoor pipe temperature recovers to 5o C and the compressor has been stopped for 3 minutes the compressor and outdoor fan motor will be turned ON l Overheating protection system When overloading occurs during the heating operation this sy...

Page 13: ...g from 0 to 110 F The louver closes at 0 F The louver swings from 25 to 65 with an automatic setting point of 45 during COOLING operation F The louver swings from 10 to 30 with an automatic setting point of 30 during DRY operation F The louver swings from 45 to 98 with an automatic setting point of 85 during HEATING operation F The louver swings from 45 to 98 with an automatic setting point of 85 ...

Page 14: ...ng temperature minus 1o C The setting temperature can only be adjusted by 2o C up and down l When the appliance operates at DRY mode the indoor motor speed is LOW 5 HEATING MODE OPERATION ONLY AVAILABLE FOR HEAT PUMP l The appliance will operate at the setting by the remote controller and the opera R O O M T E M P S E T T E M P 1 æ C O M P O N S E T T E M P 1 æ C O M P O F F I ndoor fan m otor spe...

Page 15: ...O N O F F O N O F F The indoor fan m o tor is controlled by Cold Air Preventive System A B A B 1o tion diagram is shown as following l The indoor fan motor is controlled by Cold Air Preventive System 6 COLD AIR PREVENTIVE SYSTEM ONLY AVAILABLE FOR HEAT PUMP l This system is intended to prevent cold air from being discharged during HEATING operation l The indoor fan motor speed will be controlled a...

Page 16: ...re set automatically according to the room temperature at starting operation l The operation procedure of cooling only is as following Intake air temperature at operation start Over 26o C Below 26o C Preset temperature 26o C Intake air temperature minus 1 5o C Operation mode COOLING DRY The initial mode will be continued and independent upon the room temperature changing l The operation procedure ...

Page 17: ... by Auto Fan Speed If you are not satisfied with the auto fan speed you can adjust the fan speed by pressing the FAN BUTTON 8 AUTO FAN SPEED l When the Auto Fan Speed is selected in COOLING or HEATING operation the indoor fan motor speed is automatically controlled by the intake air temperature and the preset temperature l The operation procedure of COOLING is as following Set tem p 3 æ Intake air...

Page 18: ...justment 3 setting LOW MEDIUM and HIGH can be conducted by using the Fan Speed Selection button on the remote controller l The indoor fan speed in different modes is shown as following Fan Speed High H Medium M Low L Stop COOLING Manual OK OK OK N A Automatic OK OK OK N A HEATING Manual OK OK OK N A Automatic OK OK OK N A Cold Air Preventive OK OK OK OK DRY N A N A OK N A FAN ONLY OK OK OK N A Ind...

Page 19: ... DEFROST l The defrost timer integrating the operation time of compressor counts time by microprocessor during HEATING operation l 50 minutes later after starting HEATING operation or after defrost when the outdoor pipe temperature falls to 8o C the defrosting is started When the outdoor pipe temperature exceeds 8o C or the defrosting time reaches 10 minutes the defrosting is ended l During the de...

Page 20: ...eventive System l The HEATING and defrosting operation is alternated as following l The defrosting procedure is shown as following S w itch O N Heating M in 50 m i ns Heating M in 50 m i ns Heating M in 50 m i ns D e frosting M a x 1 0 m i ns ...

Page 21: ...elled by pressing the TIMER button again on the remote controller 14 SLEEP MODE OPERATION l The SLEEP mode can only be set during COOLING DRY SMART or HEATING operation l An energy conservation operation will be achieved if selecting SLEEP mode combined with OFF TIMER The operation will be turned OFF after the preset time The maximum preset time of SLEEP mode is 8 hours default time l When selecti...

Page 22: ...ated in the room will be good F A place being drained can be easily obtained F A place where noise prevention is taken into consideration F Do not install the unit near the door way F Ensure the spaces from the wall ceiling fence or other obstacles l Outdoor unit F If an awning is built over the unit to prevent direct sunlight or rain exposure be careful that heat radiation from the condenser is n...

Page 23: ...extended line is the center of the hole l Drill the piping hole at either the right or the left and the hole should be slightly slant to the outdoor side 3 PIPING AND DRAINAGE OF INDOOR UNIT l Preparation of piping 1 Cut the pipes and the cable F Use the accessory piping kit or the pipes purchased locally F Measure the distance between the indoor and the outdoor units F Cut the pipes a little long...

Page 24: ...24 Model No AC S10CK_S10HK Version 1 0 F Cut the cable a 1 5m longer than the pipe length ...

Page 25: ... S10CK_S10HK Version 1 0 2 Remove burrs F Remove burrs from cut edges of pipes F Turn the pipe end down to avoid the metal powder entering the pipe F Caution If the burrs are not removed they may cause a gas leakage ...

Page 26: ...to protect it from the dust or damages l Indoor unit installation F Hook the indoor unit onto the upper portion of installation plate Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate F Ensure the hooks are properly seated on the installation plate by moving it in left and right l Connecting the piping to the indoor unit F Align the center of the...

Page 27: ...de φ12 or 1 2 inch 5 5 kg m Gas Side φ16 or 5 8 inch 7 5 kg m Gas Side φ19 or 3 4 inch 10 0 kg m l Wrap the insulation material around the connecting portion 4 CONNECTING PIPINGS AND THE CABLE TO OUTDOOR UNIT l Connecting the piping to outdoor unit F Align the center of the piping and sufficiently tighten the flare nut with fingers F Finally tighten the flare nut with torque wrench until the wrenc...

Page 28: ...pe Size Torque Liquid Side φ6 or 1 4 inch 1 8 kg m Liquid Side φ10 or 3 8 inch 3 5 kg m Liquid Side φ12 or 1 2 inch 5 5 kg m Gas Side φ10 or 3 8 inch 3 5 kg m Gas Side φ12 or 1 2 inch 5 5 kg m Gas Side φ16 or 5 8 inch 7 5 kg m Gas Side φ19 or 3 4 inch 10 0 kg m l Connecting the cable to the outdoor unit as shown in OPERATING AND INSTALLATION INSTRUCTIONS MANUAL ...

Page 29: ...he securing screws F To remove the grille pull the lower left and right side of the grille toward you slightly titled and lift it straight upward Two tabs on the top inside edge of the grille are clear of their slots 2 Check the drainage F Pour glass of water on the evaporator F Ensure if water flows from drainage hose of indoor unit l Form the piping F Wrap the connecting portion of indoor unit w...

Page 30: ...the ground Do not dip it into water and fix it on the wall to avoid swinging in the wind l In case of the outdoor unit is installed below position of the indoor unit F Tape the piping drainage hose and connecting cable from down to up F Form the piping gathered by taping along the exterior wall and fix it onto the wall by saddle or equivalent ...

Page 31: ...ing onto the wall by saddle or equivalent l Connecting the cable to the indoor unit as shown in the OPERATING AND INSTALLATION INSTRUCTIONS MANUAL 6 AIR PURING OF THE PIPINGS AND INDOOR UNIT l Air purging preparation F Remove the caps from the 2 way and 3 way valves F Remove the service port cap from the 3 way valve F To open the valve turn the valve spindle of 2 way valve counter clockwise ap pro...

Page 32: ...kage ceases l Air purging F To purge the air push the pin on the service port of 3 way valve for three sec onds with a hexagonal wrench wait for one minute F Repeat the operation three times No leakage found Leakage found Open 2 way valve again turn the valve spindle counter clockwise until it stops Re tighten the connecting portion with wrench Leakage ceases Leakage persists Locate a repair leak ...

Page 33: ...to the service port of 3 way valve Measure the pressure F Keep it for 5 10 minutes Ensure if the pressure indicated on the gauge is as same as that of measured at the first time l Follow the result of right side piping l The additional gas for air purging has been charged in the outdoor unit However if the flare connections have not been done correctly and gas leaks a gas cylin der and the charge ...

Page 34: ...Open counter clockwise Closed clockwise Open push pin Operation Open with valve cap Open with valve cap Closed with cap Pumping down Transferring Closed clockwise Open counter clockwis e Open connected manifold gauge Evacuation Servicing Open Open Open with charging cylinder Gas charging Servicing Open Open Open with charging cylinder Pressure check Servicing Open Open Open with charging cylinder ...

Page 35: ...iping must be purged If air remains in the refrigerant pipes it will affect the compressor reduce the cooling and heating capacity and could lead to a malfunction l Be sure to use a torque wrench to tighten the service port cap after using the service port so that it prevents the gas leakage from the refrigeration cycle l Caution Do not leak the gas in the air during air purging l Air purging proc...

Page 36: ...way valve to the back seat F Mount the valve caps to the 2 way and 3 way valves F Check for gas leakage At this time especially check for gas leakage from the 2 way and 3 way valve s caps and from the service port cap l Caution If gas leakage is discovered take the following measures F If the gas leakage stops when the piping connections are tightened fur ther continue working F If the gas leakage...

Page 37: ...rate the air conditioner at the cooling cycle and stop it when the gauge indi cates 1kg cm2 g l Immediately set the 3 way valve to the closed position F Do this quickly so that the gauge ends up indicating 3 to 5kg cm2 g l Disconnect the charge set and amount the 2 way and 3 way valve s caps and the service port cap F Use torque wrench to tighten the service port cap to a torque of 1 8 kg m F Be s...

Page 38: ...s to the open position F Be sure to use a hexagonal wrench to operate the valve spindles l Mount the valve caps and the service port cap F Use torque wrench to tighten the service port cap to a torque of 1 8kg m F Be sure to check for gas leakage l Caution Do not leak the gas in the air during air purging 4 BALANCE REFRIGERANT OF THE 2 WAY 3 WAY VALVES GAS LEAKED l Confirm that both the 2 way and ...

Page 39: ...onditioner is not running is higher than 1 kg cm2 g discharge the refrigerant until the gauge indicates 0 5 to 1 kg cm2 g If this is the case it will not be necessary to apply an evacuation F Discharge the refrigerant gradually If it is discharged too suddenly the refrigera tion oil will also be discharged 5 EVACUATION ALL AMOUNT OF REFRIGERANT LEAKED l Connect the vacuum pump to the charge set s ...

Page 40: ...e charge hose to the charging cylinder F Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder F If you are using a gas cylinder also use a scale and level the cylinder so that the system can be charged with liquid l Purge the air from the charge hose F Open the valve at the bottom of the cylinder and press the check valve on the charge set ...

Page 41: ...procedures Because you are charging with liquid refrigerant from the gas side absolutely do not attempt to charge with larger amounts of liquid refrigerant while operating the air conditioner l Immediately disconnect the charge hose from the 3 way valve s service port F Stopping partway will allow the gas to be discharged F If the system has been charged with liquid refrigerant while operating the...

Page 42: ...em are shown in the following table Normal Pressure and Outlet Air Temperature Gas Pressure MPa kg cm2 g Outlet Air Temperature Cooling Mode 0 4 0 6 4 6 12 16 Condition Indoor fan speed High Outdoor DB temperature 35 l Checking procedure Less than 8o C at the cooling operation Difference in the intake And outlet air temperature Value of electric current during operation Normal l Measure the air te...

Page 43: ... indoor unit Decreased Decreased Decreased Heat radiation deficiency of the outdoor unit Increased Increased Increased Inefficient compression Increased Decreased Decreased 3 DIAGNOSIS METHODS OF A MALFUNCTION OF A COMPRESSOR Nature of fault Symptom Inefficient compressing of a compressor F Electric current during operation becomes approximately 20 lower than the normal value F The discharge tube ...

Page 44: ...e control P C B No voltage between outdoor fan motor terminals on the outdoor unit Check and repair electrical wiring between indoor and outdoor units Outdoor fan is blocked Remove obstructions Outdoor fan motor is broken Replace outdoor fan motor The outdoor fan does not function correctly Outdoor fan motor capacitor is broken Replace capacitor No voltage between compressor terminals on the indoo...

Page 45: ...r circulation and etc Check the problems and try again one hour later Running capacitor faulty Replace running capacitor No cooling or heating indoor and outdoor fan operate Compressor is broken Replace compressor Water accumulates and overflows from indoor unit Drainage hose or port of drainage pan clogged Remove clogged dirt Power supply failure Repair power supply The secondary voltage of trans...

Page 46: ...outdoor unit Check the electric circuit on the outdoor unit Is the fuse down Replace the transformer with a new one Replace the fuse and varister with new ones Yes Correct power supply between L and N of terminal board Yes Replace the control P C B with a new one Measure the secondary voltage of transformer The machine does not function at all with remote controller and EMERGENCY button on the ind...

Page 47: ...e ON OFF button on the remote controller Replace the display P C B assembly with a new one When the signal is received does the voltage change Is timer lamp of indoor unit flashing Indoor unit is normal Inspect the outdoor Unit or refer to trouble Suspension Table Refer to Trouble Suspension Table Replace the control P C B assembly Replace the batteries with new ones NO Replace the wireless remote...

Page 48: ...he buttons EMERGENCY on the indoor unit Refer to Trouble Suspension Table Measure the resistances of room temperature and indoor pipe temperature thermisters Some of the three indicator LEDs are lit Measure the secondary voltage of transformer Is the measured value approximately 17 0 V AC Replace the control P C B with a new one Replace the transformer with a new one Replace the fuse and varister ...

Page 49: ...49 Model No AC S10CK_S10HK Version 1 0 CHAPTER 10 EXPLODED DRAWINGS 1 Exploded view of indoor unit for model AC S10CK AC S10HK ...

Page 50: ...50 Model No AC S10CK_S10HK Version 1 0 2 Exploded view of outdoor unit for model AC S10CK ...

Page 51: ...51 Model No AC S10CK_S10HK Version 1 0 3 Exploded view of outdoor unit for model AC S10HK ...

Page 52: ...6 Display PCB 8140921 1 17 Power Supply Cord Clamp2 Power Supply Cord Clamp1 110963 1109147 1 1 18 Terminal Board 3PS 150265 1 19 Terminal Fixer 1109245 1 20 Control PCB AC S7 10CK 8140943 1 20a Control PCB AC S13CK 8140928 21 Indoor Fan Motor 1402153 1 22 Transformer 814051 1 23 Electric Box 1005213 1 24 Power Supply Cord 1501185 1 25 Power Supply Cord Clamp 1203185 1 26 Terminal Board 3PU 150264...

Page 53: ...1 1 17 Power Supply Cord Clamp2 Power Supply Cord Clamp1 110963 1109147 1 1 18 Terminal Board 5PU 150262 1 19 Terminal Fixer 1109245 1 20 Control PCB AC S7 10HK 8140943 1 20a Control PCB AC S13HK 8140976 21 Indoor Fan Motor 1402153 1 22 Transformer 814051 1 23 Electric Box 1005213 1 24 Power Supply Cord 1501185 1 25 Power Supply Cord Clamp 1203185 1 26 Terminal Board 3PS 150265 1 27 Power Supply P...

Page 54: ... Seal 1 12 Power Supply Cord Clamp 1 110963 1 13 Power Supply Cord Clamp 2 1109147 1 14 Terminal Board 2U 150217 A 2 15 Terminal Board 3PU 150264 1 16 Fan motor Capacitor 141111 1 17 Compressor Capacitor 141189 1 18 Power Supply Cord 1501545 1 19 Capacitor Fixing Ring 812031 1 20 Bulkhead 811094 1 21 Chassis 810027 1 22 Compressor 1304309 1 23 Right Side Plate 810038 1 24 Valve Fixing Plate 811092...

Page 55: ...12 Power Supply Cord Clamp 1 110963 1 13 Power Supply Cord Clamp 2 1109147 1 14 Terminal Board 2U 150217 A 2 15 Terminal Board 5PU 150262 1 16 Fan motor Capacitor 141111 1 17 Compressor Capacitor 141115 1 18 Power Supply Cord 1501545 1 19 Capacitor Fixing Ring 812031 1 20 Bulkhead 811091 1 21 Chassis 810025 1 22 Compressor 1304312 1 23 Right Side Plate 810038 1 24 Valve Fixing Plate 811092 1 25 Te...

Page 56: ...3 2 21 13 2 21 Outdoor N G Wt kg 26 0 31 30 0 35 28 0 33 30 0 35 28 0 33 34 0 39 50 0 58 53 0 61 55 0 63 56 0 64 Compressor Brand Mitsubishi Toshiba LG Toshiba Gas Pipe Diameter Liquid Pipe Diameter Piping m 40HQ CTN Loading Indoor Unit Picture 245 sets 152 sets 123 sets 3 8 or 10mm 890x350x580 3 8 or 10mm 1130x300x395 832x380x702 970x765x410 Hitachi 5 8 or 16mm 770x179x240 830x240x310 755x252x530...

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