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Daikin FTKS20CVMB, Service Manual

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Daikin FTKS20CVMB Service Manual Download Page 138

SiENBE04-401A

Troubleshooting

Service Diagnosis

129

4.17 Electrical Box Temperature Rise

Remote control 
Display

L3

Method of 
Malfunction 
Detection

An electrical box temperature rise is detected by checking the radiation fin thermistor with the 
compressor off.

Malfunction 
Decision 
Conditions

With the compressor off, the radiation fin temperature is above 80°C(90°C



). Reset is made 

when the temperature drops below 70°C(80°C



).



: value for (A)RK(X)H, R(Y)N models

Supposed 
Causes

„

Fin temperature rise due to defective outdoor unit fan

„

Fin temperature rise due to short-circuit

„

Fin thermistor defective

„

Connector in poor contact

„

Outdoor unit PCB defective

Summary of Contents for FTKS20CVMB

Page 1: ...Service Manual Inverter Pair Wall Mounted Type C Series D Series Applied Models zInverter Pair Cooling Only zInverter Pair Heat Pump SiENBE04 401A...

Page 2: ...RN20CVMB9 RKS20C2VMB RKH20CAVMB ARKH20CAVMB RN25CVMB9 RKS25C2VMB RKH25CAVMB ARKH25CAVMB RN35CVMB9 RKS35C2VMB RKH35CAVMB ARKH35CAVMB zHeat Pump Indoor Unit FTXS20CVMB 9 ATXS20CVMB 9 FTYN20CVMB9 FTXS25C...

Page 3: ...Flaps Wide Angle Louvres and Auto Swing 46 1 3 Fan Speed Control for Indoor Units 47 1 4 Programme Dry Function 48 1 5 Automatic Operation 49 1 6 NIGHT SET Mode 50 1 7 INTELLIGENT EYE 51 1 8 HOME LEAV...

Page 4: ...Codes and Description 109 4 2 Indoor Unit PCB Abnormality 110 4 3 Freeze up Protection Control or High Pressure Control 111 4 4 Fan Motor AC Motor or Related Abnormality 113 4 5 Thermistor or Related...

Page 5: ...81 2 5 Removal of Four Way Valve 183 2 6 Removal of Compressor 185 2 7 Removal of PCB 187 3 Outdoor Unit RK X H C ARK X H C R Y N C 190 3 1 Removal of External Panels 190 3 2 Removal of Bell mouth 193...

Page 6: ...plug socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipm...

Page 7: ...the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation...

Page 8: ...nnot be located and the repair work must be stopped be sure to perform pump down and close the service valve to prevent the refrigerant gas from leaking into the room The refrigerant gas itself is har...

Page 9: ...ding and repair it if the equipment is not properly grounded Improper grounding can cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resis...

Page 10: ...SiENBE04 401A List of Functions 1 Part 1 List of Functions 1 List of Functions 2 1 1 High Grade Models 2 1 2 Standard Grade Models 5 1 3 Non lnverter Models 9...

Page 11: ...eliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display H2 H2 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of O...

Page 12: ...Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display H2 H2 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Outdoor Heat Exchanger Comfo...

Page 13: ...start after Power Failure 3 D Airflow Self Diagnosis Digital LED Display H2 H2 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Outdoor Heat Exchanger Comfort...

Page 14: ...iability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display H1 H1 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Out...

Page 15: ...lity Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display H1 H1 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Outdoor Heat Excha...

Page 16: ...ity Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display H1 H1 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Outdoor Heat Exchan...

Page 17: ...ability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display H1 H1 Comfort Airflow Mode Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Outd...

Page 18: ...ure Vertical Auto Swing Up and Down Self Diagnosis Digital LED Display H H Horizontal Auto Swing Right and Left Wiring Error Check 3 D Airflow Anticorrosion Treatment of Outdoor Heat Exchanger Comfort...

Page 19: ...List of Functions SiENBE04 401A 10 List of Functions...

Page 20: ...SiENBE04 401A Specifications 11 Part 2 Specifications 1 Specifications 12 1 1 Cooling Only 12 1 2 Heat Pump 20...

Page 21: ...Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 4...

Page 22: ...emovable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 Power Factor 96 6 96 6 96 6 Tem...

Page 23: ...ovable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 Power Factor 96 6 96 6 96 6 Tempe...

Page 24: ...Left Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40...

Page 25: ...wnward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 Power Factor...

Page 26: ...wnward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 Power Factor...

Page 27: ...wnward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 Power Factor...

Page 28: ...ldew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 Power Factor 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer...

Page 29: ...Right Left Horizontal Downward Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption...

Page 30: ...n Control Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microco...

Page 31: ...l Downward Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 40 P...

Page 32: ...ontrol Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcompu...

Page 33: ...Downward Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 40 Po...

Page 34: ...Control Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcomp...

Page 35: ...Air Direction Control Right Left Horizontal Downward Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0...

Page 36: ...Air Direction Control Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Con...

Page 37: ...ntrol Right Left Horizontal Downward Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consump...

Page 38: ...r Direction Control Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Contr...

Page 39: ...ntrol Right Left Horizontal Downward Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consump...

Page 40: ...ir Direction Control Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Cont...

Page 41: ...ntrol Right Left Horizontal Downward Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consump...

Page 42: ...r Direction Control Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Contr...

Page 43: ...Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 40 Power Factor 96 6 96 6 96 6 96 6 Temperature Control Microcompu...

Page 44: ...Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Dimensions H W D mm 273 78...

Page 45: ...Specifications SiENBE04 401A 36 Specifications...

Page 46: ...onnector Wiring Diagram 37 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 38 1 1 Indoor Unit 38 1 2 Outdoor Unit RK X S C ARK X S C 40 1 3 Outdo...

Page 47: ...alized control HA 5 S26 Connector for signal receiver PCB 6 S27 S36 Connector for control PCB 7 S32 Connector for heat exchanger thermistor 8 S35 Connector for INTELLIGENT EYE sensor PCB 1 V1 Varistor...

Page 48: ...Connector Wiring Diagram 39 PCB Detail PCB 1 Control PCB PCB 2 Signal Receiver PCB PCB 3 INTELLIGENT EYE sensor PCB Inverter models only Control PCB V1 Fu1 S1 SW7 LED1 LED2 LED3 RTH1 S27 S7 12V Check...

Page 49: ...Connector for electronic expansion valve coil 4 S30 Connector for compressor motor 5 S40 Connector for overload protector 6 S70 Connector for fan motor 7 S80 Connector for four way valve coil 8 S90 C...

Page 50: ...nnector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 41 PCB Detail PCB 1 Control PCB outdoor unit PCB 2 Filter PCB FU2 3 15A S30 HN3 HC3 S70 J8 HC4 R4989 S40 LED A S90 HL3 FU1 3 15A V...

Page 51: ...R Y N C Connectors Note Other designations PCB Detail Control PCB outdoor unit 1 S20 Connector for electronic expansion valve 2 S70 Connector for fan motor 3 S80 Connector for four way valve 4 S90 Co...

Page 52: ...tions 55 2 Function of Main Structural Parts 56 2 1 Function of Thermistor 56 3 Control Specification 58 3 1 Mode Hierarchy 58 3 2 Frequency Control 59 3 3 Controls at Mode Changing Start up 61 3 4 Di...

Page 53: ...ns the conversion principle Drawing of Inverter The following drawing shows a schematic view of the inverter principle Phase Description 1 The supplied AC power source is converted into the DC power s...

Page 54: ...o air condition with a small room temperature variation Energy saving heating and cooling Once the set temperature is reached the energy saving operation enables to maintain the room temperature at lo...

Page 55: ...resses the warm air above the floor to reach the entire room Cooling Mode During cooling mode the flap retracts into the indoor unit Then cool air can be blown far and pervaded all over the room Wide...

Page 56: ...peration fan operate H tap 50 90 rpm 2 Fan stops during defrost operation Automatic Air Flow Control for Heating The following drawing explains the principle for fan speed control for heating Automati...

Page 57: ...set by the microcomputer is divided into two zones Then the unit operates in the dry mode with an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level Ro...

Page 58: ...ting temperature plus correction value correction value cooling 0 deg heating 2 deg 3 Operation ON OFF point and mode switching point are as follows 1 Heating Cooling switching point Room temperature...

Page 59: ...g for economical operations This prevents excessive heating in winter and excessive cooling in summer to ensure comfortable sleeping conditions and also conserves electricity Cooling Operation Heating...

Page 60: ...hen a microcomputer doesn t have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit in temperature sifted 2 C from the set temperature COOL 2 C higher DR...

Page 61: ...tes so as to prevent this phenomena After this 40 minutes the prohibition of the thermostat off is cancelled and it can realize the conditions to conduct thermostat off depending on the room temperatu...

Page 62: ...on becomes effective The HOME LEAVE button is ineffective in dry mode and fan mode 2 Details of Function A mark representing HOME LEAVE is indicated on the liquid crystal display of the remote control...

Page 63: ...eriod of twenty minutes Ex Powerful operation in cooling mode Operation mode Fan speed Target set temperature COOL H tap 90 rpm 18 C DRY Dry rotating speed 50 rpm Normally targeted temperature in dry...

Page 64: ...lter with Photocatalytic Deodorizing Function This filter incorporates the benefits the Air Purifying Filter and Photocatalytic Deodorizing Filter in a single unit Combining the two filters in this wa...

Page 65: ...the compressor rises abnormally the operating frequency drops or the operation must be halted 2 The discharge pipe thermistor is used for detecting the discharge thermistor disconnected C Indoor Heat...

Page 66: ...control the discharge pipe If the temperature of discharge pipe used in place of the inner temperature of the compressor rises abnormally the operating frequency drops or the operation must be halted...

Page 67: ...nd cooling including drying Note Unless specified otherwise an indoor dry operation command must be regarded as cooling operation Air conditioner control mode Forced operating mode Forced cooling for...

Page 68: ...per limits of the following functions Compressor protection input current discharge pipes peak cutting freeze up protection defrost 3 Determine lower limit frequency Set a maximum value as an lower li...

Page 69: ...volume air flow rate and other factors PI Control Determine Frequency Up Down by D Signal 1 P control Calculate D value in each sampling time 20 seconds and adjust the frequency according to its diff...

Page 70: ...y valve must be carried out after the operation stopped Detail The OFF delay of four way valve Energize the coil for 160 sec after unit operation is stopped 3 3 3 Four Way Valve Operation Compensation...

Page 71: ...s set to keep this temperature from going up further Detail Divide the Zone Management within the Zones FCG 3 FCG 2 FCG 1 TCG 1 TCG 2 TCG 3 88 64 48 240 360 180 Frequency FCG3 FCG2 FCG1 TCG1sec TCG2se...

Page 72: ...nt drooping and stop value according to the outdoor air temperature 1 In case the operation mode is cooling The current droops when outdoor air temperature becomes higher than a certain level model by...

Page 73: ...tion 4 Tap control when drooping function is working 5 Fan control when forced operation 6 Fan control in low noise mode 7 Fan control during heating operation 8 Fan control in the quiet mode 9 Fan co...

Page 74: ...minutes after the compressor is started and more than 44 minutes of accumulated time pass since the start of the operation or ending the defrosting Conditions for Canceling Defrost The judgment must...

Page 75: ...emperature control Detail The followings are the examples of control which function in each mode by the electronic expansion valve control R2833 only for heat pump model x x x x x x x x x x x x x x x...

Page 76: ...Disconnection of the Discharge Pipe Thermistor Outline Detect a disconnected discharge pipe thermistor by comparing the discharge pipe temperature with the condensation temperature If any is disconnec...

Page 77: ...ischarge pipe temperature from the indoor and outdoor heat exchanger temperature and adjust the electronic expansion valve opening so that the actual discharge pipe temperature become close to that te...

Page 78: ...are three ways of control to detect insufficient gas I Detecting by power consumption If the power consumption is below the specified value and the frequency is higher than the specified frequency it...

Page 79: ...oltage is detected each time equipment operation starts Cooling room temperature indoor heat exchanger temperature 4 0 C outdoor heat exchanger temperature outdoor temperature 4 0 C Heating indoor hea...

Page 80: ...temperature rises the operation will start again Caution 1 If the outdoor unit is installed where the heat exchanger of the unit is exposed to direct wind provide a windbreak wall 2 Intermittent noise...

Page 81: ...Control Specification SiENBE04 401A 72 Function and Control...

Page 82: ...2 2 Names of parts 77 2 3 Preparation before Operation 80 2 4 AUTO DRY COOL HEAT FAN Operation 83 2 5 Adjusting the Air Flow Direction 85 2 6 POWERFUL Operation 87 2 7 OUTDOOR UNIT SILENT Operation 88...

Page 83: ...lever method of using it In order to meet this expectation of the users giving sufficient explanations taking enough time can be said to reduce about 80 of the requests for servicing However good the...

Page 84: ...ic shocks fire etc For repairs and reinstallation consult your Daikin dealer for advice and information The refrigerant used in the air conditioner is safe Although leaks should not occur if for some...

Page 85: ...se check the unit stand and fittings for damage Do not touch the air inlet and aluminum fins of outdoor unit It may cause injury The appliance is not intended for use by young children or infirm perso...

Page 86: ...SiENBE04 401A Instruction System Configuration 77 2 2 Names of Parts FTK X S 20 25 35 50 D Indoor Unit 4 1 3 4 5 6 7 9 10 11 2 ON OFF 14 15 16 8 12 13...

Page 87: ...he louvers are inside of the air outlet page 13 p 12 Indoor Unit ON OFF switch page 10 Push this switch once to start operation Push once again to stop it The operation mode refers to the following ta...

Page 88: ...WERFUL button for POWERFUL operation page 14 5 TEMPERATURE adjustment buttons It changes the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7...

Page 89: ...ype and replace the two old batteries together When the system is not used for a long time take the batteries out We recommend replacing once a year although if the remote control display begins to fa...

Page 90: ...t 2 Fix the holder to a wall a pillar or similar location with the screws procured locally 3 Place the remote control in the remote control holder About remote control Never expose the remote control...

Page 91: ...turn the breaker OFF Use the air conditioner in the following conditions Operation outside this humidity or temperature range may cause a safety device to disable the system C TEMP ON OFF POWERFUL HO...

Page 92: ...nces the mode setting in sequence AUTO DRY COOL HEAT FAN FTKS FTXS 2 Press ON OFF button The OPERATION lamp lights up To stop operation 3 Press ON OFF button again Then OPERATION lamp goes off To chan...

Page 93: ...fore the room gets warmer In heating operation frost may occur on the outdoor unit and lower the heating capacity In that case the system switches into defrosting operation to take away the frost Duri...

Page 94: ...fort To adjust the horizontal blades flaps 1 Press SWING button The display on the LCD and the flaps will begin to swing 2 When the flaps have reached the desired position press SWING button once more...

Page 95: ...ends on the operation mode See the figure ATTENTION Always use a remote control to adjust the flaps angle If you attempt to move it forcibly with hand when it is swinging the mechanism may be broken B...

Page 96: ...peration there are some functions which are not available To cancel POWERFUL operation 2 Press POWERFUL button again TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SWING SILENT SENSOR ON CANCEL OFF O...

Page 97: ...ote on OUTDOOR UNIT SILENT operation This function is available in COOL HEAT and AUTO modes This is not available in FAN and DRY mode POWERFUL operation and OUTDOOR UNIT SILENT operation cannot be use...

Page 98: ...please set the temperature and air flow rate for HOME LEAVE operation Record your preferred temperature and air flow rate 1 Press HOME LEAVE button Make sure is displayed in the remote control displa...

Page 99: ...ou will be welcomed by a comfortably air conditioned room Push the HOME LEAVE Operation button again and the air conditioner will adjust capacity to the set temperature for normal operation Set the un...

Page 100: ...ELLIGENT EYE operation 1 Press SENSOR button To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again C TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SWING SILENT SENSOR ON CANCEL OFF 1 2...

Page 101: ...slightly in fan operation In FAN mode only Application range is as follows Sensor may not detect moving objects further than 5m away Check the application range Sensor detection sensitivity changes ac...

Page 102: ...r button changes the setting rapidly 3 Press OFF TIMER button again The TIMER lamp lights up To cancel the OFF TIMER operation 4 Press CANCEL button The TIMER lamp goes off When TIMER is set the prese...

Page 103: ...ges the setting rapidly 3 3 Press ON TIMER button again The TIMER lamp lights up To cancel the ON TIMER operation 4 Press CANCEL button The TIMER lamp goes off To combine ON TIMER and OFF TIMER A samp...

Page 104: ...with water dry it with cloth dry it up in the shade after washing 4 Attach the front panel Set the 3 keys of the front panel into the slots and push them in all the way Close the front panel slowly an...

Page 105: ...utral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Air Purifying filter with photocatalytic deodorizing function gray...

Page 106: ...the inside Press MODE selector button and select FAN operation Press ON OFF button and start operation 2 After operation stops turn off the breaker for the room air conditioner 3 Clean the air filter...

Page 107: ...m when the air conditioner is in defrost operation In COOL or DRY mode Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips Mists come out of the indoor unit T...

Page 108: ...d Are the air flow rate and the air direction set appropriately Is the unit set to the INTELLIGENT EYE mode page 18 Operation stops suddenly OPERATION lamp flashes Are the air filters clean Is there a...

Page 109: ...n poor performance It is recommended to have periodical maintenance by a specialist aside from regular cleaning by the user For specialist maintenance contact the service shop where you bought the air...

Page 110: ...E SENSOR OUTDOOR UNIT EA COOLING HEATING SWITCHING ERROR E5 OL STARTED E6 FAULTY COMPRESSOR START UP E7 DC FAN MOTOR FAULT E8 OPERATION HALT DUE TO DETECTION OF INPUT OVER CURRENT F3 HIGH TEMPERATURE...

Page 111: ...Instruction SiENBE04 401A 102 System Configuration...

Page 112: ...Error between Indoor and Outdoor Unit 115 4 7 OL Activation Compressor Overload 116 4 8 Compressor Lock 117 4 9 DC Fan Lock 118 4 10 Input Over Current Detection 119 4 11 Four Way Valve Abnormality 12...

Page 113: ...quipment operation 2 When a signal transmission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Location of Operation...

Page 114: ...C or higher only for heat pump model and cooling operation cannot be used when the outdoor air temperature is below 10 C Note Diagnosis with remote control indication 109 Equipment operates but does n...

Page 115: ...p is produced The code indication changes in the sequence shown below and notifies with a long beep Note 1 A short beep and two consecutive beeps indicate non corresponding codes 2 To cancel the code...

Page 116: ...2 Press the TEMP button Press TEMPs or TEMPt and change the digit until you hear the sound of beep or pi pi 3 Diagnose by the sound H pi The number of tens does not accord with the error code H pi pi...

Page 117: ...both numbers of tens and units do not accord with the error code H pi pi The number of tens accords with the error code H beep The both numbers of tens and units accord with the error code 7 Determine...

Page 118: ...m temperature thermistor abnormality 114 Outdoor Unit E5H OL activation compressor overload 116 E6H Compressor lock 117 E7 DC fan lock 118 E8 Input over current detection 119 EA Four way valve abnorma...

Page 119: ...ss detection in approximately 10 continuous seconds Supposed Causes Faulty indoor unit PCB Faulty connector connection Troubleshooting Note Connector Nos vary depending on models Connector connection...

Page 120: ...according to the temperature detected by the indoor unit heat exchanger thermistor Malfunction Decision Conditions High pressure control During heating operations the temperature detected by the indoo...

Page 121: ...cumulation on the indoor unit heat exchanger YES YES Is there any short circuit Is it very dirty Is it very dirty Does it conform to the thermistor characteristic chart NO Provide sufficient air passa...

Page 122: ...due to faulty indoor unit PCB Troubleshooting Check No 16 Refer to P 145 Rotate the fan by hand Check No 16 Check Hall IC Operate the fan Does it rotate NO Does it rotate smoothly Is there an output I...

Page 123: ...ss than 120 ohms or below about 50 C more than 1 860 kohms Note The values vary slightly in some models Supposed Causes Faulty connector connection Faulty thermistor Faulty PCB Troubleshooting Check N...

Page 124: ...al transmission error due to breaking of wire in the connection wires between the indoor and outdoor units wire No 2 Troubleshooting Check No 10 Refer to P 143 Check the outdoor unit s LED A Check the...

Page 125: ...bleshooting Check No 4 Refer to P 138 Check No 5 Refer to P 139 Check No 6 Refer to P 140 Check No 11 Refer to P 143 Insert the thermistor in position Replace the discharge pipe thermistor Replace the...

Page 126: ...pposed Causes Compressor locked Compressor harness disconnected Troubleshooting Note If the model doesn t have SPM replace the outdoor unit PCB Turn off the power Disconnect the harnesses U V and W In...

Page 127: ...for about 5 minutes normal Supposed Causes Fan motor breakdown Harness or connector disconnected between fan motor and PCB or in poor contact Foreign matters stuck in the fan Troubleshooting Check No...

Page 128: ...el doesn t have SPM replace the outdoor unit PCB Replace the outdoor unit PCB Inverter checker Part No 1225477 Correct the power supply or replace the SPM Replace the outdoor unit PCB R2952 Caution Be...

Page 129: ...cked to see if they function within their normal ranges in the operating mode Malfunction Decision Conditions A following condition continues over 10 minute after operating 5 minutes Cooling dry opera...

Page 130: ...power switch before connect or disconnect connector or parts damage may be occurred Four way valve coil disconnected loose YES YES NO Functioning NO Check No 11 Check the refrigerant line Malfunction...

Page 131: ...r temperature thermistor defective Outdoor unit PCB defective Water mixed in the local piping Electronic expansion valve defective Stop valve defective Troubleshooting Check No 4 Refer to P 138 Check...

Page 132: ...g sensed by the heat exchanger thermistor exceeds the limit Malfunction Decision Conditions Activated when the temperature being sensed by the heat exchanger thermistor rises above 65 C The error is c...

Page 133: ...ir the connector or fan motor lead wires Replace the heat exchanger thermistor Replace PCB Replace the electronic expansion valve or coil Replace the PCB Change the air outlet grille position Change t...

Page 134: ...disconnected Compressor itself defective Outdoor unit PCB defective Stop valve closed Input voltage out of specification Troubleshooting Check No 13 Refer to P 144 Replace the outdoor unit PCB Replac...

Page 135: ...ision Conditions The compressor running frequency is below 52 Hz The input current is also below 0 5 A If this error repeats 4 times the system will be shut down The error counter will reset itself if...

Page 136: ...ature Malfunction Decision Conditions The thermistor input is above 4 96 V or below 0 04 V with the power on Error J3 is judged if the discharge pipe thermistor temperature is smaller than the condens...

Page 137: ...t exchanger thermistor z Outdoor air thermistor Replace the following thermistor z Indoor heat exchanger thermistor Replace the outdoor unit PCB Replace the indoor unit PCB R4097 Caution Be sure to tu...

Page 138: ...n thermistor with the compressor off Malfunction Decision Conditions With the compressor off the radiation fin temperature is above 80 C 90 C Reset is made when the temperature drops below 70 C 80 C v...

Page 139: ...ff power switch before connect or disconnect connector or parts damage may be occurred Error again or outdoor unit fan activated YES z Fin thermistor NO Slightly dirty Check No 9 Check the outdoor uni...

Page 140: ...perature with the compressor on is above 90 C 100 C for A RK X H R Y N models If a radiation fin temperature rise takes place 4 times successively the system will be shut down The error counter will r...

Page 141: ...istor Replace the fan motor Correct the connectors and fan motor leads Replace the outdoor unit PCB Clean up the radiation fin R4017 Caution Be sure to turn off power switch before connect or disconne...

Page 142: ...s running An output over current input is fed from the output over current detection circuit to the microcomputer The system will be shut down if the error occurs 255 times Clearing condition Continuo...

Page 143: ...have been disconnected and reconnected for part replacement for example and the system is interrupted by an output over current take the following procedure Error again NO YES NO YES Voltage as rated...

Page 144: ...el to model Gas shortage detection II If a gas shortage error takes place 4 times successively the system will be shut down The error counter will reset itself if this or any other error does not occu...

Page 145: ...nit heat exchanger thermistor 1 Replace the PCB 2 Replace the compressor Procedure complete R3318 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be...

Page 146: ...Continuous run for about 10 minutes normal Supposed Causes Supply voltage not as specified Over voltage detection circuit defective PAM control part s defective Troubleshooting Note If the model does...

Page 147: ...onductivity using a tester Check the conductivity between pins 1 3 and 6 and between pins 2 4 and 5 If there is no conductivity between the pins the EV coil is faulty 4 If no EV generates latching sou...

Page 148: ...unit PCB Replace the four way valve coil Replace the four way valve R3047 NO Four way valve coil Cooling dry No continuity Heating Continuity YES YES Four way valve coil resistance at 3k 0 5k NO S80...

Page 149: ...tance of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below Thermistor R25 C 20k B 3950 Temperature C 20 211 0 k 15 150 1...

Page 150: ...by the outdoor unit The outside air temperature shall be 43 C or lower Check the allowable dimensions of the air suction and discharge area Is the air flow blocked by obstacles or winds blowing in the...

Page 151: ...functioning Go to Check No 15 Check the fan motor lead wire connector for secure connection Abnormal YES NO NO Continuity Are the resistance at connector leads 1 red black 2 white black Check the fan...

Page 152: ...aveform disturbance near the zero cross sections circled in Fig 2 5 1 8 Inverter Units Refrigerant System Check Check No 11 Fig 1 Fig 2 Refrigerant system check Check for gas leaks See the section on...

Page 153: ...wer off and disconnect the connector S70 2 Make sure there is about DC 270 V between pins 4 and 7 3 With the system and the power still off reconnect the connector S70 4 Make a turn of the fan motor w...

Page 154: ...d the connector connected check the following Output voltage of about 5 V between pins 1 and 3 Generation of 3 pulses between pins 2 and 3 when the fan motor is operating Failure of 1 faulty PCB Repla...

Page 155: ...Check SiENBE04 401A 146 Service Diagnosis...

Page 156: ...Panels and Fan Motor 170 2 2 Removal of Electrical Box 177 2 3 Removal of Reactor and Partition Plate 179 2 4 Removal of Sound Blanket 181 2 5 Removal of Four Way Valve 183 2 6 Removal of Compressor...

Page 157: ...5 seconds a forced cooling operation will be carried out for approx 15 minutes 2 Removing air filters 1 Pull protrusions on left and right sides of panel with fingers and open front grille all the way...

Page 158: ...nit s panel and open up the panel to the position higher than it will stop Support the front panel by one hand while remove the rotation axis at the upper center by the other hand And pull out the fro...

Page 159: ...Indoor Unit SiENBE04 401A 150 Removal Procedure 3 When restoring the air filter make sure that the projection parts on the panel are in the guide groove and then shut the panel Step Procedure Points...

Page 160: ...re to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Opening and closing of service cover 1 Remove a service cover mounting screw Open s...

Page 161: ...existing models are not provided 2 Disengage the two hooks on the upper part In case that the hooks are not pressed from above remove the front panel and then remove the grille while pushing the hook...

Page 162: ...t Removal Procedure 153 3 The front grille can be removed in a manner to pull out the upper part forward and lift up the lower part When restoring the grille Make sure whether each hook is set as it w...

Page 163: ...after turning off all power supplies before disassembling work Step Procedure Points 1 Remove horizontal blade 1 Lift horizontal blade to open position Screw stoppers inside the flap which were equip...

Page 164: ...de to the tip while rotating it 2 Restore the two fixed parts of the horizontal blade onto the hook 2 Removal of vertical blade 1 Disengage the vertical blade s joint from the fixed plate 2 Remove the...

Page 165: ...res 2 Disconnect connectors S1 and S7 of fan motor Pay attention to the direction of the retainer of the thermistor so that the retainer will not touch the harness same as the existing models 3 Discon...

Page 166: ...A Indoor Unit Removal Procedure 157 5 Remove a screw on the terminal board The electrical box can be removed instead of disengaging the terminal board 6 Remove a screw on the electrical box Step Proce...

Page 167: ...Indoor Unit SiENBE04 401A 158 Removal Procedure 7 Pull up the electrical box forward to remove A hook is provided on the behind Step Procedure Points...

Page 168: ...shelter 2 Disengage the front plate of the electrical box Disengage the knobs by pushing the two hooks at the top and the bottom 3 Sliding to the left the front part of the electrical box can be remov...

Page 169: ...ure 4 Disengage the four knobs on the back of the signal receiver PCB 5 Signal receiver PCB Step Procedure Points PC Board R2538 Knob R2539 LED1 Green LED2 Yellow LED3 Red SW7 ON OFF button Thermistor...

Page 170: ...ve swing motor assembly remove two screws Manual adjusting for the vertical blades Provide a supporter so that the joint link will not drop off in case the horizontal blade assembly is removed Step Pr...

Page 171: ...refrigerating cycle Mixing of air or other gas causes abnormal temperature rise in refrigerating cycle and this results in pipe rupture or personal injuries Pay attention so that the residual drain wi...

Page 172: ...deformation 6 Disengage hooks located right and left side and pull heat exchanger forward The hooks are symmetrically placed in the right and the left Lifting the heat exchanger slightly upward to th...

Page 173: ...1A 164 Removal Procedure 7 Lift and remove heat exchanger Caution When removing or re installing heat exchanger be sure to wear protective gloves or wrap heat exchanger with cloths Fins can cut finger...

Page 174: ...re disassembling work Step Procedure Points 1 Disconnect drain hose The drain pan is integrated with the bottom plate 2 Pull out the drain plug in the left on the drain pan by hand 3 Insert the drain...

Page 175: ...of Fan Rotor and Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove heat exchanger 1 To remove...

Page 176: ...SiENBE04 401A Indoor Unit Removal Procedure 167 2 Disengage hook 3 Loosen the hexagon head set screw on the fan rotor Step Procedure Points Hook R2558...

Page 177: ...Indoor Unit SiENBE04 401A 168 Removal Procedure 4 Remove the motor and fan rotor 5 Remove a screw on the left side plate Step Procedure Points Disengage a hook from the backward R2562...

Page 178: ...6 Disengage a hook from the backward 7 Since the fan bearing is made of rubber push it strongly off from the inside The bearing can be removed just as the left side plate is attached with Step Proced...

Page 179: ...rning off all power supplies before disassembling work Step Procedure Points 1 Features Take care not to cut your finger by the fins of the heat exchanger The stop valve cover is united with the shelt...

Page 180: ...s 1 Loosen the 3 screws front right left and lift the top panel 2 Remove the drip proof plate 3 Disconnect the connector for fan motor S70 The fan motor is united with the front panel 4 Loosen the 5 s...

Page 181: ...hooks The fan motor is united with the front panel 3 Remove the fan motor The screw has reverse winding 1 Unscrew the washer fitted nut M10 of the propeller fan with a spanner 2 Remove the propeller f...

Page 182: ...ift the bell mouth to undo the hooks Remove the bell mouth 4 Loosen the fixing hooks and release the lead wire Put the lead wire through the back of the motor when reassembling so as not to be entangl...

Page 183: ...RK X S C SiENBE04 401A 174 Removal Procedure 5 Loosen the 4 screws to remove the fan motor M4 16 DC fan motor 6 Loosen the 2 screws to remove the fan motor fixing frame Step Procedure Points Fan motor...

Page 184: ...RK X S C Removal Procedure 175 4 Remove the right side panel 1 Loosen the 2 screws on the rear side 2 Loosen the 3 screws on the right side 3 Loosen the screw and lift the connection port to remove St...

Page 185: ...Outdoor Unit RK X S C ARK X S C SiENBE04 401A 176 Removal Procedure When reassembling make sure to fit the hook Step Procedure Points Hook...

Page 186: ...power supplies before disassembling work Step Procedure Points Remove the top panel Disconnect the connector for fan motor 1 Remove the electrical box 1 Disconnect the 2 reactor harnesses 2 Disconnect...

Page 187: ...thermistor Pay attention so as not to lose the clip for thermistor 5 Release the heat exchanger thermistor Pay attention so as not to lose the clip 6 Lift and remove the electrical box Step Procedure...

Page 188: ...Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the outer panels Remove the electrical box 1 Remove the reactor 1...

Page 189: ...K X S C SiENBE04 401A 180 Removal Procedure 2 The partition plate has a hook on the lower side Lift and pull the partition plate to remove When reassembling fit the lower hook into the bottom frame St...

Page 190: ...upplies before disassembling work Step Procedure Points Remove the outer panels Remove the electrical box 1 Remove the sound blanket 1 Untie the strings and open the sound blanket 2 Lift and remove th...

Page 191: ...X S C SiENBE04 401A 182 Removal Procedure 4 Pull the sound blanket inner out Since the piping ports on the sound blanket are torn easily remove the blanket carefully 5 Pull the sound blanket bottom o...

Page 192: ...off all power supplies before disassembling work Step Procedure Points 1 Remove the peripheries Remove the four way valve and the sheets of putty so as not to burn them 1 Remove the terminal cover Be...

Page 193: ...with a tube cutter 4 Heat up the brazed part and withdraw the piping with pliers Provide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries Be careful so as not...

Page 194: ...so as not to burn the heat exchanger fin Warning Since it may happen that refrigeration oil in the compressor will catch fire prepare wet cloth so as to extinguish fire immediately In case of the diff...

Page 195: ...Outdoor Unit RK X S C ARK X S C SiENBE04 401A 186 Removal Procedure Step Procedure Points 3 Heat up the brazed part of the suction side and disconnect 4 Lift the compressor up and remove it...

Page 196: ...after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the PCB You can remove the PCB when you disconnect the read wires on the terminal board without removing t...

Page 197: ...Outdoor Unit RK X S C ARK X S C SiENBE04 401A 188 Removal Procedure 4 Loosen the 4 screws 5 Undo the 3 hooks on the upper side 6 Lift and pull out the PCB Step Procedure Points Hooks...

Page 198: ...C Removal Procedure 189 7 Feature of the PCB S70 fan motor S80 four way valve S90 thermistor outdoor air heat exchanger discharge pipe Step Procedure Points PbF Pb free soldering Glass fuse 3 15A Gla...

Page 199: ...fter turning off all power supplies before disassembling work Step Procedure Points 1 The stop valve cover can be removed when the fixing screw is removed As hooks are provided slide the cover downwar...

Page 200: ...ont panel 3 Remove the 3 screws on the left side 4 Remove the fixing screw in the rear of the top panel Once lift the top panel and then remove it forward The left side panel and the bell mouth can be...

Page 201: ...401A 192 Removal Procedure 5 The front panel and the left side panel can be separated when the fixing screw is removed Sectional view at the front Step Procedure Points R4105 Top panel The edge of the...

Page 202: ...es or more after turning off all power supplies before disassembling work Step Procedure Points 1 The bell mouth is attached to the front plate with 2 screws and 4 hooks 2 Remove the 2 screws and undo...

Page 203: ...ll power supplies before disassembling work Step Procedure Points 1 Remove the drip proof plate The drip proof plate has 5 hooks Be sure to restore the drip proof plate and to avoid losing or damaging...

Page 204: ...iENBE04 401A Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 195 3 Disconnect the fan motor connector S70 4 Disconnect the four way valve connector S80 Step Procedure Points R4030 R4031 R403...

Page 205: ...BE04 401A 196 Removal Procedure 5 Disconnect the electronic expansion valve connector S20 6 Disconnect the thermistor connector S90 outdoor air heat exchanger discharge pipe 7 Disconnect the relay har...

Page 206: ...SiENBE04 401A Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 197 8 Disconnect the 2 reactor harnesses 9 Disconnect the 4 wire harnesses Step Procedure Points R4036 R4037 R4038...

Page 207: ...X H C R Y N C SiENBE04 401A 198 Removal Procedure 10 Remove the 5 screws fixing the PCB 11 Undo the 4 hooks and the PCB can be disengaged The PCB has 4 hooks 12 Control PCB outdoor unit Step Procedure...

Page 208: ...cedure 199 3 Remove the electrical box 1 Release the lead wire of the fan motor from the ditch 2 Remove the 2 screws fixing the electrical box 3 Remove the screw of the terminal board cover Step Proce...

Page 209: ...Outdoor Unit RK X H C ARK X H C R Y N C SiENBE04 401A 200 Removal Procedure 4 Remove the terminal board cover 5 Lift and remove the electrical box Step Procedure Points R4045 R4046...

Page 210: ...or more after turning off all power supplies before disassembling work Step Procedure Points Remove the external panels and the drip proof plate protecting the electrical parts Be sure to restore the...

Page 211: ...bly 4 The propeller fan can be removed when the washer faced nut M8 is removed When restoring match the t mark of the propeller fan with the D cut of the motor shaft The fan should be restored so that...

Page 212: ...SiENBE04 401A Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 203 Step Procedure Points 6 Remove the 2 screws for removing the fan motor 7 Remove the fan motor Fan motor R4053 R4054...

Page 213: ...g off all power supplies before disassembling work Step Procedure Points 1 Remove the right side panel 1 2 Remove the 3 screws for removing the right side panel Lift the right side panel to disengage...

Page 214: ...Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 205 2 Pull the partition plate upward to remove 3 When restoring the partition plate fit the hook into the bottom frame Step Procedure Points...

Page 215: ...Outdoor Unit RK X H C ARK X H C R Y N C SiENBE04 401A 206 Removal Procedure 3 Remove the reactor 1 The reactor can be released by removing the screw Step Procedure Points Reactor R4060 R4061...

Page 216: ...ling work Step Procedure Points 1 Remove the sound insulation pad Since the slit prepared for the piping connection on the sound insulation pad is torn easily remove the pad carefully When restoring t...

Page 217: ...the slit prepared for the piping on the sound insulation pad is torn easily remove the pad carefully 4 Pull out the under pad of the top sound insulation 5 Pull out the inner sound insulation pad Whe...

Page 218: ...SiENBE04 401A Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 209 6 Pull out the bottom sound insulation pad Step Procedure Points R4067...

Page 219: ...ssor so as not to be burnt out by a gas brazing machine 2 Release the heat exchanger thermistor The thermistor for the heat exchanger is fixed by a clamp material at one portion Be sure to fix the the...

Page 220: ...SiENBE04 401A Outdoor Unit RK X H C ARK X H C R Y N C Removal Procedure 211 4 Loosen the screw and remove the four way valve coil Step Procedure Points Four way valve coil R4071 R4072...

Page 221: ...event the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat For the sake of this wrap the four way valve with wet cloth and make up water so that...

Page 222: ...e cutter in order to make it easy to remove NOTE Don t use a metal saw for cutting pipes by all means because the chips come into the circuit Cautions at the restoration Wrap the motor valve with wet...

Page 223: ...und the compressor Be careful so as not to burn the compressor terminals or the name plate 1 Remove the terminal cover and the lead wires of the compressor so as not to be burnt out by a gas brazing m...

Page 224: ...the work If the refrigerant is exposed to the fire it will cause toxic gas Caution Be careful about pipes and so on which were heated up by a gas brazing machine so as not to get burnt on your hands...

Page 225: ...Outdoor Unit RK X H C ARK X H C R Y N C SiENBE04 401A 216 Removal Procedure...

Page 226: ...SiENBE04 401A Others 217 Part 8 Others 1 Others 218 1 1 Test Run from the Remote Control 218 1 2 Jumper Settings 219...

Page 227: ...ng 1 Measure the supply voltage and make sure that it falls in the specified range 2 Trial operation should be carried out in either cooling or heating mode 3 Carry out the test operation in accordanc...

Page 228: ...emove the drip proof plate 4 tabs 4 Cut the address jumper JA on the control PCB Infrared remote control 1 Slide the front cover and take it off 2 Cut the address jumper J4 1 2 2 Jumper Setting R2871...

Page 229: ...Others SiENBE04 401A 220 Others...

Page 230: ...SiENBE04 401A Appendix 221 Part 9 Appendix 1 Piping Diagrams 222 1 1 Indoor Units 222 1 2 Outdoor Units 223 2 Wiring Diagrams 227 2 1 Indoor Units 227 2 2 Outdoor Units 228...

Page 231: ...XS20 25 35CAVMB ATXS20 25 35DAVMB M FIELD PIPING FIELD PIPING 6 4CuT 9 5CuT 7 9CuT REFRIGERANT FLOW FAN MOTOR ON HEAT EXCH THERMISTOR INDOOR UNIT COOLING 7 0CuT 6 4CuT 9 5CuT HEAT EXCHANGER 6 4CuT 6 4...

Page 232: ...D VALVE MUFFLER WITH FILTER MUFFLER 9 5CuT 6 4CuT LIQUID STOP VALVE GAS STOP VALVE FIELD PIPING FIELD PIPING 6 4CuT 9 5CuT 9 5CuT 7 9CuT REFRIGERANTF LOW COOLING 3D043690C 9 5CuT 9 5CuT 7 0CuT 7 0CuT...

Page 233: ...MUFFLER FILTER WITH MUFFLER 6 4CuT MUFFLER VALVE MOTOR OPERATED 9 5CuT MUFFLER 6 4CuT 6 4CuT FILTER WITH VALVE LIQUID STOP VALVE GAS STOP FIELD PIPING FIELD PIPING 9 5CuT 6 4CuT 3D042770C MUFFLER 7 9...

Page 234: ...SSOR ACCUMULATOR 9 5CuT MUFFLER 9 5CuT GAS STOP VALVE FIELD PIPING FIELD PIPING 6 4CuT 9 5CuT LIQUID STOP VALVE 6 4CuT REFRIGERANT FLOW HEATING COOLING 3D043688C 9 5CuT 9 5CuT 7 0CuT 7 0CuT THERMISTOR...

Page 235: ...TING COOLING MUFFLER 6 4CuT VALVE MOTOR OPERATED MUFFLER 9 5CuT 6 4CuT 6 4CuT FILTER LIQUID RECEIVER WITH VALVE LIQUID STOP VALVE GAS STOP FIELD PIPING FIELD PIPING 6 4CuT 9 5CuT 3D042768C 9 5CuT 7 9C...

Page 236: ...SWITCH X1M TERMINAL STRIP H2 H3 H1 GRN WHT RED BLK YLW X1M 2 3 1 NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN CAUTION FIELD WIRING 2 3 1...

Page 237: ...ALVE COIL PROTECTIVE EARTH FERRITE CORE TERMINAL STRIP HR2 3 OUTDOOR DB1 IC11 PCB2 R1T 1 CONDENSER BLK t BLK S90 HC3 R2T BLK DB2 t BLK DISCHARGE R3T BLK 6 t BLK S70 C75 C74 1 HC4 WHT 2 ORG 1 3 M BRN 4...

Page 238: ...1 REFER TO THE NAMEPLATE FOR THE POWER REQUIREMENTS X1M TERMINAL STRIP C74 C75 C80 C94 C95 C100 CAPACITOR DB1 DB2 DIODE BRIDGE FU1 FU3 FUSE L LIVE L1 COIL L1R REACTOR M1C COMPRESSOR MOTOR M1F FAN MOTO...

Page 239: ...Wiring Diagrams SiENBE04 401A 230 Appendix...

Page 240: ...charge pipe thermistor 196 electronic expansion valve 196 fan motor 156 171 195 four way valve 177 195 outdoor air thermistor 196 outdoor heat exchanger thermistor 196 swing motor 156 control pcb indo...

Page 241: ...thermistor 114 156 210 heat exchanger thermistor connector 196 heating peak cut control 64 high pressure control 111 high pressure control in cooling 123 hl3 40 hn3 40 home leave operation 53 horizont...

Page 242: ...ontroller 106 right side panel 175 204 right side plate 166 room temperature thermistor 114 rth1 38 S s1 38 156 s10 40 s11 40 s20 40 42 196 s21 38 s26 38 s27 38 s30 40 s32 38 s35 38 s36 38 s40 40 s6 3...

Page 243: ...SiENBE04 401A iv Index varistor 38 40 42 vertical blade 155 voltage detection function 70 W wide angle louvres 46 wiring diagrams 227...

Page 244: ...me leave operation 53 I indoor unit pcb abnormality 110 input current control 63 input over current detection 119 installation condition check 141 insufficient gas 135 insufficient gas control 69 inte...

Page 245: ...pipe temperature control 68 thermistor or related abnormality indoor unit 114 thermistor or related abnormality outdoor unit 127 thermistor resistance check 140 trial operation from remote controller...

Page 246: ...336 RPR Oostende The present publication is drawn up by way of information only and does not constitute an offer binding upon Daikin Europe N V Daikin Europe N V has compiled the content of this publi...

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