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SERVICE MANUAL

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1. en 40 9 3 3 Power Failure During Timer Operation 40 9 4 Remote Controller and Its Fuctions 9 4 1 Parts Name of Remote Controller 9 4 2 Operation of remote control 9 4 3 Name and Functions of Indications on Remote Controller FILE NO SVM 10017 Item Operation flow and applicable data etc 1 Basic Operation control operation Receiving the user s operation condition setup the operation statuses of indoor outdoor units are controlled 1 The operation conditions are selected by the remote controller as shown in the below 2 signal is sent by ON button of the remote controller 3 The signal is received by a sensor of the indoor unit and processed by the indoor controllers as shown in the below 4 The indoor controller controls the indoor fan motor and louver motor 5 The indoor controller sends the operation command to the outdoor controller and sends receives the control status with a serial signal 6 The outdoor controller controls the operation as shown in the left and also controls the compres sor outdoor fan motor and 4 way valve Remote controller Selection of Control contents of remote controller operation conditions ON OFF Air conditioner Air purifier Operation select COOL HEAT AUTO DRY Air direction Swing Air volume select AUTO LOW MED HIGH ECO ON timer setup OFF ti
2. 62 11 5 Judgement of Trouble by Every Symptom 11 5 1 Indoor unit Including remote controller 1 Power is not turned on Does not operate entirely Turn off power supply once and 5 second later turn it on again Is OPERATION lamp blinking YES Is it possible to turn on power supply by pressing NO YES YES Parts DB01 C27 T01 and 1 02 are defective Is voltage DC 12V or 5V indicatedon YES rear of indoor control board normal Is the voltage across C27 Refer to lt Primary check gt or this problem is one step short of power P C board block mesured DC 310V 340V Are DC 5V Are DC 5V DC 12V Turn off breaker or DC 12V supplied once and turn it supplied to main on again after to main P C board removing motor P C board Does transmission mark on remote control flash normally utton and is its signal on remote transmitted control properly FILE NO SVM 10017 Operation Check item Conceivable principle cause Measure Item by symptoms NO Remote control is defective Refer to 4 Troubleshooting for Remote Control Does fan motor connector between 4 3 short circuit Microcomputer is defective Regulator IC IC02 or T01 are defective Replace motor Be sure to disconn
3. ad Pipe Plate Wes j S 62 es Ix T 500 F 70 P T ee Yoe z gps za HA DE Pipe hole A Hook Installation Indoor unit Weight Mounting screw Fig 10 3 3 2 m or more from floor FILE NO SVM 10017 When the installation plate is directly 10 3 3 Electrical Work mounted on the wall 1 The supply voltage must be the same as the rated voltage of the air conditioner 1 Securely fit the installation plate onto the wall by screws with the upper and lower catches that 2 Prepare a power source for the exclusive use of hold the indoor unit facing out the air conditioner 2 To mount the installation plate on a concrete wall NOTE ps anchor bolt holes as Wire type MEER QA AD e More than 1 5 mm HO7RN F or 602451 66 3 Install the installation plate horizontally and level This appliance can be connected to a main circuit breaker in either of the following two ways 1 Connection to fixed wiring A switch or circuit breaker which discon nects all poles and has a contact separa When installing the installation plate with mount ing screw do not use the anchor bolt hole Otherwise the unit may fall down and result in personal injury and property damage tion of at least 3 mm must be incorporated in the fixed wiring An approved circuit ee breaker or switch must be used An
4. Imperial wing nut type Outer dia R410A of copper pipe 6 35 9 52 1 5 to 2 0 1 5 to 2 0 lt Tightening connection gt 27 Fig 10 4 1 Align the centers of the connecting pipes tighten the flare nut as far as possible with your fingers Then tighten the nut with a spanner and torque wrench as shown in the figure Use a wrench to secure Use a torque wrench to tighten Fig 10 4 4 e Do not apply excess torque Otherwise the nut may crack depending on the conditions 53 FILE NO SVM 10017 Unit N m i Using a vacuum pum Outer dia Tightening torque g pump gt of copper pipe Be sure to use a vacuum pump with counter flow 8 kaf prevention function so that inside oil of the pump does flow backward into pipes of the air conditioner 29 52 30 to 42 3 0 to 4 2 kgf m when the pump stops If oil inside of the vacuum pump enters into the air conditioner which use R410A refrigeration cycle trouble may result Tightening torque of flare pipe connections 1 Connect the charge hose from the manifold valve to The operating pressure of R410A is higher than that of the service port of the gas side packed valve R22 Approx 1 6 times 2 Connect the charge hose to the port of the vacuum It is therefore necessary to firmly tighten the flare pipe pump connecting sections which connect the indoor and 3 Open fully th
5. Owner s Manual FILE NO SVM 10017 11 HOW TO DIAGNOSE THE TROUBLE The pulse modulating circuits are mounted to both indoor and outdoor units Therefore diagnose troubles according to the diagnosis procedure as described below Refer to the check points in servicing written on the wiring diagrams attached to the indoor outdoor une Table 11 1 No Troubleshooting Procedure First Confirmation Primary Judgement Judgement by Flashing LED of Indoor Unit Self Diagnosis by Remote Controller Judgement of Trouble by Every Symptom 6 Check Code 1C Miswiring in indoor outdoor units and 1E 7 How to Diagnose Trouble in Outdoor Unit 8 How to Check Simply the Main Parts 9 How to Simply Judge Whether outdoor Fan Motor is Good or Bad Discharging position Discharging period soldering 10 seconds or more Or HIGH VOLTAGE b 1 v gt 1 zT E x Ng exem I i i ES qn 3 g gap 19 x 1 em yr 5 t nd 2 pA He 4 iy m n ii as ct ETAT s Sill A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off ch
6. Basic E 26 de Operation Control nrden ale 26 2 Cooling Heating operation ie E o Ped 27 AUTO Operation EE 27 A DRY Operati rl e I nS 27 Indoor fan motor control NR 28 Gapacily GOniro P TTE 30 Current release control 30 Release protective control by temperature of indoor heat exchanger 31 Defrost control Only in heating operation 32 LOUVEr control sire eet e e D c n e d cs e e a aes 33 1J Louver DOS MOM Forte t MOM bte dut a sue ne Es tds 33 2 Air direction adjustment tette td 33 PY MUNIN eels Seah s esce tof 33 ERORE iro p et RE E Pre 34 Temporary operation e T 35 Discharge temperature control 35 Self Cleaning str et E 36 Remote A or B selection nere eee 38 SOR THON kanaa us cisci asus ia q akuspa aah aqya asas a SE 38 lE 38 9 3 Auto Restart Function 9 3 1 How to Set the Auto Restart Function cene 39 9 3 2 How to Cancel the Auto Restart Function
7. Cooling Auto cooling Dry 10 minutes or longer 30 mins Heating Auto heating Auto fan only No Self Cleaning operation performed Shutdown To stop an ongoing Self Cleaning operation at any time Press the start stop button on the remote controller twice during the Self Cleaning operation After pressing the button for the first time press it for the second time without delay within 10 minutes FILE NO SVM 10017 Operation display e Self Cleaning diagram ON OFF OFF FCU fan ON ON rpm is depend on presetting 500RPM OFF FCU louver OPEN OPEN 12 79 CLOSE Timer display ON or OFF depend on presetting of timer function ON ON or OFF depend on presetting of timer function Compressor depend on presetting per room temperature ON or OFF OFF CDU fan depend on presetting per room temperature ON or OFF OFF Cool mode or dry mode operation more than 10 mins Turn off by remote controller or timer off function Self Cleaning mode operate 30 mins gt Operation time Automatically turn off 12 Romote A or B selection Setting the remote controller To separate using of remote control for each indoor unit in case of 2 air conditioner are installed nearly Remote Control B Setup 1 Press RESET button on the indoor unit to turn the air conditioner ON 2 Point the remote control at the in
8. When wiring use the specified cables and connect the terminals securely to prevent external forces applied to the cable from affecting the terminals Be sure to provide grounding Do not connect ground wires to gas pipes water pipes lightning rods or ground wires for telephone cables Conform to the regulations of the local electric company when wiring the power supply Inappropriate grounding may cause electric shock Exposure of unit to water or other moisture before installation may result in an electrical short Do not store in a wet basement or expose to rain or water Do not install in a place that can increase the vibration of the unit Do not install in a place that can amplify the noise level of the unit or where noise or discharged air might disturb neighbors To avoid personal injury be careful when handling parts with sharp edges Perform the specified installation work to guard against an earthquake If the air conditioner is not installed appropriately accidents may occur due to the falling unit For Reference If a heating operation would be continuously performed for a long time under the condition that the outdoor temperature is 0 C or lower drainage of defrosted water may be difficult due to freezing of the bottom plate resulting in a trouble of the cabinet or fan It is recommended to procure an antifreeze heater locally for a safe installation of the air conditioner For details contact the de
9. from the incused line 22 Packed valve at gas side Service port Valve core Setting pin Packed valve at liquid side Incused line Fig 10 4 7 KEEP IMPORTANT 5 POINTS FOR PIPING WORK Fig 10 4 6 1 Take away dust and moisture Inside of the connecting pipes 10 3 3 Evacuating 2 Tight connection between pipes and unit After the piping has been connected to the indoor unit 3 Evacuate the air in the connecting pipes using you can perform the air purge together at once VACUUM PUMP 4 Check gas leak connected points AIR PURGE 5 Be save to fully open the packed valves Evacuate the air in the connecting pipes and in the i before operation indoor unit using a vacuum pump Do not use the refrigerant in the outdoor unit For details see the manual of the vacuum pump 54 lt Packed valve handling precautions gt Open the valve stem all the way out but do not try to open it beyond the stopper Securely tighten the valve stem cap with torque in the following table 30 to 42 3 0 to 4 2 kgf m Gas side 69 52 mm 16 to 18 N m 1 6 to 1 8 kgf m Liquid side 26 35 mm 9to 10 N m 0 9 to 1 0 kgf m Hexagonal wrench is required lt Service port Fig 10 4 8 10 4 4 Wiring connection 1 2 Remove the valve cover from the outdoor unit Connect the connecting cable to the terminal as identified with their respective matched numbers on the terminal bloc
10. 5 1 Indoor Unit FILE NO SVM 10017 5 WIRING DIAGRAM Outdoor Terminal Block 123 Heat Indoor Terminal Block 3 2 E Exchanger POWER SUPPLY From outdoor Unit m Z x 2 1 220 240V 50Hz 1 220 230V 60Hz E SX X1 CN51 Qe ew 313 6X6 1 515 y 5X5 AC Motor T CN31 2d 3 WHI DC 1 Fan Motor TIT lt 2 roof 3 Heat Exchanger Sensor Ae e pn TC 1 DMH YEL 5 De 2 202 i OU 3 3 Thermo Sensor Varistor Line TA WH Filler E K CN32 Louver Motor Say WHI CN22 E O WHI DC12VO 34 D E S 2 9 3 gt 4 uf 1 2 m Color indication 5 BRW BROWN 2 z YEL YELLOW 2 BLK BLACK z RED RED BLU BLUE NIE RN amp YEL i Main P C Board GREEN amp YELLOW _WP 020 Quick check for diagnosing faults Check Items Diagnosis result OPERATION Check to see if the OPERATION indicator goes amp off when indicator the main switch or circuit breaker
11. Auxiliary pipes i Connecting cable Installation plate Fig 10 3 18 Carefully arrange the pipes so that none of the pipes stick out of the rear plate of the indoor unit Carefully connect the auxiliary pipes and connecting pipes to each other and cut off the insulating tape wound on the connecting pipe to avoid double taping at the joint moreover seal the joint with the vinyl tape etc Since condensation can result in machine performance trouble be sure to insulate both connecting pipes Use polyethylene foam as insulating material When bending a pipe be careful not to crush it 10 3 6 Indoor Unit Installation 1 Pass the pipe through the hole in the wall and hook the indoor unit on the installation plate at the upper hooks 2 Swing the indoor unit to right and left to confirm that it is firmly hooked on the installation plate 3 While pressing the indoor unit onto the wall hook it at the lower part on the installation plate Pull the indoor unit toward you to confirm that it is firmly hooked on the installation plate Hook here CD Installation plate Push unhook Fig 10 3 15 For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing the bottom up at the specified places Push Push Fig 10 3 16 FILE NO SVM 10017 10 3 7 Drainage 1 Run the drain hose at a downward sloped angle NOTE Hol
12. No 701 702 703 704 43T62320 43T69819 43T60392 43T60326 Description HEATSINK PC BOARD TERMINAL 5P FUSE Location No 705 706 707 708 FILE NO SVM 10017 43T60377 43T50304 43T62313 43T55325 Description TEMPERATURE SENSOR SENSOR HEAT EXCHANGER BASE PLATE PC CAPACITOR PLASTIC FILM TOSHIBA CARRIER THAILAND CO LTD 144 9 MOO5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAMBOL BANGKADI AMPHUR MUANG PATHUM THANI 12000 THAILAND
13. 5 After completion of installation work check to make sure that there is no refrigeration gas leakage If the refrigerant gas leaks into the room coming into contact with fire in the fan driven heater space heater etc a poisonous gas may occur 6 When an air conditioning system charged with a large volume of refrigerant is installed in a small room it is necessary to exercise care so that even when refrigerant leaks its concentration does not exceed the marginal level If the refrigerant gas leakage occurs and its concentration exceeds the marginal level an oxygen starvation accident may result 7 Be sure to carry out installation or removal according to the installation manual Improper installation may cause refrigeration trouble water leakage electric shock fire etc 8 Unauthorized modifications to the air conditioner may be dangerous If a breakdown occurs please call a qualified air conditioner technician or electrician Improper repair s may result in water leakage electric shock and fire etc 3 2 Refrigerant Piping Installation 3 2 1 Piping Materials and Joints Used For the refrigerant piping installation copper pipes and joints are mainly used Copper pipes and joints suitable for the refrigerant must be chosen and installed Furthermore it is necessary to use clean copper pipes and joints whose interior surfaces are less affected by contaminants 1 Copper Pipes It is necessary to use s
14. TO TE 20 30 40 50 Check it is impossible to detect the voltage DC 15V between 3 and 4 of the motor terminals The motor does not operate or the fan motor does not rotate with high speed But it is possible to receive the signal from the remote controller The motor rotates but vibrates strongly Temperature C 69 TD TA TC TO TE The indoor fan motor is defective Protected operation of P C board The P C board is defective The connection of the motor connector is loose Discharge temp sensor Room temp sensor Heat exchanger temp sensor Outdoor temp sensor Outdoor heat exchanger temp sensor 11 6 2 Indoor unit Other parts Part name Room temp TA sensor Heat exchanger TC sensor FILE NO SVM 10017 Checking procedure Disconnect the connector and measure the resistance value with tester Normal temp Temperature Sensor Remote control To item of How to judge whether remote control is good or bad of the Judgment of trouble by symptom Louver motor 24BYJ48 Measure the resistance value of each winding coil by using the tester Under normal temp 25 C Position Resistance value 1102 1103 1104 1105 3800 7 Indoor fan motor 11 6 3 Outdoor unit Part name Compressor Model DA89X1C 23EZ Refer to 10 5 1 Che
15. fan motor are mounted to the outdoor unit The entire air conditioner is mainly controlled by the indoor unit controller The indoor unit controller drives the indoor fan motor based upon command sent from the remote controller and transfers the operation command to the outdoor unit controller The outdoor unit controller receives operation com mand from the indoor unit side and controls the outdoor fan and the pulse Modulating valve P M V Besides detecting revolution position of the compres sor motor the outdoor unit controller controls speed of the compressor motor by controlling output voltage of the inverter and switching timing of the supply power current transfer timing so that motors drive according to the operation command And then the outdoor unit controller transfers reversely the operating status information of the outdoor unit to control the indoor unit controller As the compressor adopts four pole brushless DC motor the frequency of the supply power from inverter to compressor is two times cycles of the actual number of revolution 1 Role of indoor unit controller The indoor unit controller judges the operation commands from the remote controller and assumes the following functions Judgment of suction air temperature of the indoor heat exchanger by using the indoor temp sensor TA sensor Judgment of the indoor heat exchanger tempera ture by using heat exchanger sensor TC sensor Preven
16. 12 COMFORT SLEEP OPERATION To save energy while sleeping automatically control air flow and automatically turn OFF Press COMFORT SLEEP Select 1 3 5 or 9 hrs for OFF timer operation Note The cooling operation the set temperature will increase automatically 1 degree hour for 2 hours maximum 2 degrees increase For heating operation the set temperature will decrease 13 SLEEP TIMER OPERATION To start the sleep timer OFF timer operation Press SLEEP Select 1 5 or 9 hrs for OFF timer operation 42 FILE NO SVM 10017 9 4 3 Name and Functions of Indications on Remote Controller Display All indications except for the clock time indicator are displayed by pressing the 5 button 11 1 Transmission mark This transmission mark A indicates when the remote controller transmits signals to the indoor unit 2 Mode indicator Indicates the current operation mode AUTO Automatic control A Auto changeover control Cool Dry XX Heat 3 Temperature indicator Indicates the temperature setting 17 C to 30 C 4 FAN speed indicator Indicates the selected fan speed AUTO or five fan speed levels LOW _ LOW MED HIGH _ Lamm Can be shown Indicates AUTO when the operating mode is either AUTO or Dry Fut Lt ibd AS Qu d Li Li HiPOWER 5 10 11 12 13 TIMER and clock time indicator The ti
17. 4001 15A 600V Running capacitor for fan motor DS451155NPQB AC 450V 1 5uF 4 WAY valve coil STF 01AJ646A1 18 AC 220 240V FILE NO SVM 10017 7 REFRIGERANT CYCLE DIAGRAM 7 1 Refrigerant Cycle Diagram INDOOR UNIT Indoor heat Cross flow fan exchanger Temp measurement TC U Pressure measurement Gauge attaching port Vacuum pump connecting port Outer dia Thickness Deoxidized copper pipe Outer dia 9 52mm Thickness 0 8mm J 4 way valve STF 0108Z DA89X1C 23EZ Outdoor heat exchanger Temp measurement Compressor 1 Propeller fan LI Deoxidized copper pipe m 6 35mm 0 8mm Sectional shape of heat insulator Max 10m Min 2m Chargeless 10m Allowable height difference 10m Allowable pipe length Refrigerant amount 0 6 OUTDOOR UNIT NOTE Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating The maximum pipe length of this air conditioner is 10 m The addition charging of refrigevant is unnecessary because this air condition is design with charge less specitication FILE NO SVM 10017 7 2 Operation Data lt Cooling gt Tempeature Standard Heat exchanger Indoor Outdoor Compressor condition C pressure pipe temp fan mode fan mode revolut
18. E v o o 5 lt Cooling Heating C CO The specification may be subject to change without notice for purpose of improvement RASAO7SKV ES cooing E Ooo o n IE 8 7 9 6 Single rotary type with DC inverter variable speed control DA89X1C 23EZ 27 27 0 0 0 0 0 0 2 7 2 5 2 2 7i 2 1 1 R410A 3 Wires Includes earth Outdoor 4 Wires Includes earth 21 32 Up to 27 15 43 10 24 5 4 3 4 5 RAS 107SAV E3 FILE NO SVM 10017 a m m 6 otc E gt aores T g a l 5 L ox m 5 50909 ow gt 95 m 6 5 E gt 59 gt 2 8 2 Bs 2 5589 9 S 5 sa 2 5 SE 8 E o i 1 gt I I I 1 I 1 I Lo I I A A c j j E lt N ones Aoede uang d i V V o gt 1 1 1 1 1 1 1 I Og 1 5 1 1 2 2 5 g 1 I 1 59 e I I I I 9 gt ROO 2 1 1 I I I E A m e mao e o lt m N
19. Hi POWER mode can not be set in Dry operation _ 37 FILE NO SVM 10017 9 3 Auto Restart Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down The operation will resume without warning three minutes after power is restored This function is not set to work when shipped from the factory Therefore it is necessary to set it to work 9 3 1 How to Set the Auto Restart Function To set the auto restart function proceed as follows The power supply to the unit must be on the function will not set if the power is off Press the RESET button located in the center of the front panel continuously for three seconds The unit receives the signal and beeps three times The unit then restarts operating automatically in the event of power supply being accidentally shut down When the unit is standby Not operating Operation Motions Press RESET button for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The green indicator is on L After approx three seconds The unit beeps three times The green indicator flashes and continues to operate for 5 seconds If the unit is not required to operate at this time pres
20. ST 02 Microcontroller unit IC81 uPD780076GK 703 9ET A Heat exchanger sensor TC sensor 10 25 C Line filter 101 SS11V R06270 27 mH AC 0 6A Bridge diode DB01 DB105G 1A 600V Capacitor C27 EKMH401VSN470MP20S 47uF 400V Fuse F01 FJL250V3 15A 3 15A 250 V Regulator IC IC02 S7805PIC 5VDC 0 5A Varistor R01 SR561K14DO 560V Louver motor SC coil LO1 24BYJ48 Model name GET 04051 DG 12V 0 6mH 15A L03 Noise filter GET 04052 10A 2mH DC DC transformer SWT 72 Primary side DC280V Secondary side 7 0 1 12V x 1 17V x2 Reactor CH 69 Z T L 19mH 10A Outside fan motor WLF 240 20A 1 20W Fan control relay G5NB 1A CA Coil DC12V Contact 3A 125VAC Outside air temp sensor TO sensor Inverter attached 10kQ 25 C Heat exchanger temp sensor TE sensor Inverter attached 25 C Dischenge temp sensor TD sensor Inverter attached 62kQ 20 C Terminal block 5P JX0 5B 20A AC250V Fuse For protection of switching power source 3 15A AC250V For protection of inverter input overcurrent 25A AC250V Electrolytic capacitor LLQ2G501KHUATF 500uF DC 400 V x 3 pieces IGBT GT15J321 15A 600V Compressor DA89X1C 23EZ 3 phases 4 poles 750W Rectifier D15XB60
21. Stop with LI L1 including been sent when operation continues trouble is interval of approx 10 to 40 compres started but it is not sent detected on minutes Code is not displayed sor from halfway return serial during operation 1 Compressor thermo signal and Supply gas Check also gas leak operation normal status 2 Unit operates normally during Gas shortage when signal is check Gas leak reset If return serial signal does not 2 Instantaneous power stop between indoor terminal failure block 2 and 3 replace inverter P C board If signal stops between indoor terminal block 2 and 3 replace indoor P C board Compressor does not All off Displayed when 1 Trouble on compressor rotate Current protective error is detected 2 Trouble on wiring of compressor circuit does not operate Missed phase when a specified time passed after compressor had been activated I Discharge temp exceeded All off Displayed when 1 Check discharge temp sensor TD I 117 C error is detected 2 Degassing 3 Trouble on P M V Break down of compressor All off Displayed when 1 Check power voltage 220 240 V error is detected 10 2 Overload operation of refrigeration cycle Check installation condition Short circuit of outdoor diffuser Four way valve inverse error Operation 1 Check 4 way valve operation LII TC sensor value lowered continues during heating operation
22. The unit com pressor operates continuously in the above condition 1 Check whether or not the com pressor operates 2 Check whether or not the OPERATION indicator flashes 68 The temperature of the indoor heat exchanger is extremely low The connection of the heat exchanger sensor is loose The connector is disconnected CN62 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main P C board is defective Procedure If the above condition No 5 still continues start the unit in the following condition Set the operation mode to HEAT Set the preset temperature much higher than room tem perature Check points Check whether or not the com pressor operates Check whether or not the OPERATION indicator flashes FILE NO SVM 10017 Causes The temperature of the indoor heat exchanger is extremely high The connection of the heat exchanger sensor short circuited CN62 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main P C board is defective Connect the motor connector to the motor and turn on the power supply Start the unit the following condition Set the fan speed level to HIGH The unit compressor operates continuously in the above condition in No 5 lt Sensor characteristic table gt Resistance value TA TC
23. below Table 11 6 1 Check points Check whether or not the fuse FO1 is blown Causes Impulse voltage was applied or the indoor fan motor short circuited Remove the connector of the motor and turn on the power supply breaker If OPERATION indicator flashes once per second it is not necessary to check steps 1 to 3 in the right next column Check power supply voltage 1 Between No 1 and No 3 of CNO1 AC 220 240 2 Between and of C27 310 340V 3 Between 12V and GND 4 Between 5V and GND The terminal block or the crossover cable is connected wrongly The capacitor 01 02 or C27 line filter 101 resistor R64 or the diode 0801 is defective T01 and IC01 are defective T01 and ICO2 are defective Push 0 button once to start the unit Do not set the mode to On Timer operation Check power supply voltage 1 Between CN51 and No 1 of CNO1 DC 15 60V IC51 and IC52 are defective Shorten the restart delay timer and start unit Check whether or not all indicators OPERATION and TIMER are lit for 3 seconds and they return to normal 3 seconds later The indicators are defective or the housing assembly CN20 is defective Push 0 button once to start the unit Shorten the restart delay timer Set the operation mode to COOL Set the fan speed level to AUTO Set the preset temperature much lower than the room temperature
24. compound 4 Piping materials for brazing and used brazing filler flux Piping material Used brazing filler Used flux Copper Copper Phosphor copper Do not use Copper Iron Silver Paste flux Iron Iron Silver Vapor flux 1 Do not enter flux into the refrigeration cycle 2 When chlorine contained in the flux remains within the pipe the lubricating oil deteriorates Therefore use a flux which does not contain chlorine 3 When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water 4 Remove the flux after brazing 43 FILE NO SVM 10017 3 5 3 Brazing As brazing work requires sophisticated techniques experiences based upon a theoretical knowledge it must be performed by a person qualified In order to prevent the oxide film from occurring in the pipe interior during brazing it is effective to proceed with brazing while letting dry Nitrogen gas N2 flow Never use gas other than Nitrogen gas 1 Brazing method to prevent oxidation 1 Attach a reducing valve and a flow meter to the Nitrogen gas cylinder 2 Use a copper pipe to direct the piping mate rial and attach a flow meter to the cylinder 3 Apply a seal onto the clearance between the piping material and inserted copper pipe for Nitrogen in order to prevent backflow of the Nitrogen gas 4 When the Nitrogen gas is flowing be sur
25. in order to prevent any other refrigerant from being charged accidentally the service port diameter of the outdoor unit control valve 3 way valve has been changed 1 2 UNF 20 threads per inch In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite side of flare nuts has been changed for copper pipes with nominal dimensions 1 2 and 5 8 New tools for R410A New tools for R410A Applicable to R22 model FILE NO SVM 10017 Changes Gauge manifold x As pressure is high it is impossible to measure by means of conventional gauge In order to prevent any other refrigerant from being charged each port diameter has been changed Charge hose In order to increase pressure resisting strength hose materials and port size have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the port size Electronic balance for refrigerant charging As pressure is high and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur Torque wrench nominal diam 1 2 5 8 The size of opposite sides of flare nuts have been increased Incidentally a common wrench is used for nominal diameters 1 4 and 3 8 Flare tool clutch type By increasing the clamp bar s receiving hole strength of spring in the tool has been improved Gauge for pr
26. in the electric parts box 2 Never joint them near the thermal sensor part Otherwise it would cause insulation inferiority because of dew drops 3 When replacing the sensor using the colored protective tube wind the color tape matching the color of that tube FILE NO SVM 10017 Remarks Cutting here Thermal 100 sensor part Connector Cutting here E Thermal constringent tube Cutting here 100 lt So Soldered Winding the color Part name Remarks Sensor Length Sensor Spring For spare Sensor Spring B For spare Thermal constringent tube Including one spare Color tape 9 colors Terminal 80 FILE NO SVM 10017 13 EXPLODED VIEWS AND PARTS LIST 13 1 Indoor Unit E Parts Assy Location No 401 403 404 Description 43T60365 TERMINAL BLOCK 3P 43T69319 TEMPERATURE SENSOR 43T69320 TEMPERATURE SENSOR Location Description No 405 43T69612 DISPLAY UNIT 410 43T62003 CORD CLAMP 43T69824 BOARD 13 2 Indoor Unit Location Part 43T00478 43T09433 43T03357 43T80317 43T09392 43T70313 43T79301 43T21363 43T44387 43T47353 43T47355 43T11319 43T19333 Description FRONT PANEL ASSY GRILLE OF AIR INLET BACK BODY ASSY AIR FILTER HORIZONT
27. installation plate using mounting screws between 4 to 6 being sure to secure all four corners FILE NO SVM 10017 CAUTION 1 Die cutting front panel slit Be sure to refer to the wiring system diagram Cut out the slit on the left or right side of the front labeled inside the front panel panel for the left or right connection and the slit Check local electrical regulations for any on the bottom left or side of thefront panel for the specific wiring instructions or limitations bottom left or right connection with a pair of nippers 2 Changing drain hose For left connection left bottom connection and rear left connection s piping it is necessary to relocate the drain hose and drain cap Cord clamp Terminal block Terminal cover How to remove the drain cap Clip drain cap with needle nose pliers and pull out Screw ET Earth line di 7 Connecting cable Fig 10 3 8 15 10 50 Stripping length of the connecting cable How to remove the drain hose Fig 10 3 6 The drain hose is secured in place by a screw Remove the screw securing the drain hose then pull NOTE out the drain hose e Use stranded wire only e Wire type HO7 RN F or more 10 3 5 Piping and Drain Hose Installation Piping and drain hose forming Since condensation results i
28. mm eac Pipe insulating material polyethylene foam 6 mm thick Putty PVC tapes lt Fixing arrangement of outdoor unit gt 275 mm 500 mm tage el 97mm Air inlet Lr lt JS B 8 N Y W c Air outlet Drain outlet Fig 9 1 2 FILE NO SVM 10017 e Secure the outdoor unit with the fixing bolts and nuts if the unit is likely to be exposed to a strong wind Use mm mm anchor bolts and nuts If itis necessary to drain the defrost water attach drain nipple to the bottom plate of the outdoor outdoor unit before installing it 45 10 1 3 Accessory and installation parts FILE NO SVM 10017 Part No Part name Q ty Part No Part name Q ty Part No Part name Q ty e Remote control holder x 1 mmm Mounting screw 24 x 25 t x 6 Wireless remote control x 1 Active carbon catechin x 1 Qu Flat head wood screw 23 1 16 2 Battery x 2 Active carbon catechin x 1 Drain nipple x 1 The part marked with asterisk is packaged with the Others Name outdoor unit Owner s manual Installation manual 46 10 2 3 Installation Servicing Tools Changes in the product and components In the case of an air conditioner using R410A
29. neighbors A place which is not exposed to a strong wind A place free of a leakage of combustible gases A place which does not block a passage When the outdoor unit is to be installed in an elevated position be sure to secure its feet An allowable length of the connecting pipe is up 10 m An allowable height level is up to 8 m A place where the drain water does not raise any problem Obliquity Roughness Warp S Y Fig 10 4 2 2 Insert a flare nut into the pipe and flare the pipe Projection margin in flaring A Unit mm Fig 10 4 3 Xr 2 1 Install the outdoor unit without anything blocking the air discharging When the outdoor unit is installed in a place exposed always exposed to strong wind like a coast or on a high storey of a building secure the normal fan operation using a duct or a wind shield In particularly windy areas install the unit such as to avoid admission of wind Installation in the following places may result in trouble Do not install the unit in such places A place full of machine oil e A saline place such as the coast place lull of sulfide gas e A place where high frequency waves are likely to be generated as from audio equipment welders and medical equipment Rigid Clutch type Outer dia of copper pipe 6 35 9 52 Conventional tool used 1 0 to 1 5 1 0 to 1 5 R410A tool used 0 to 0 5 0 to 0 5
30. o 5 93 t 2 o vt sis b o d d FEF 8 5 5 5 5 6 2 gt 1 1 9 l I I 1 1 I e 1 1 1 1 1 gt 5 En DENS o 1 e G 2 amp de odo edo cf T a 1 5 gt lt lt e 1 I I gt 1 o o E s j deeds sd I 1 e Feeder s ka F E a m l 8 I 1 I A A 1 1 2 o 4 g O M LD LD 5 5 CN eu v uano ai S ones Auoedeo Buijoog Outside Temperature C Outside Temperature C FILE NO SVM 10017 3 REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC R410A which does not damage the ozone layer The working pressure of the new refrigerant R410A is 1 6 times higher than conventional refrigerant R22 The refrigerating oil is also changed in accordance with change of refrigerant so be that water dust and existing refrigerant or refrigerat ing oil are not entered in the refrigerant cycle of the air conditioner using the new refrigerant during installation work or servicing time The next section describes the precautions for air conditioner using the new refrigerant Conforming to contents of the next
31. revolution command signal defined by indoor temperature and set temperature Correction along with variation of room tempera ture and correction of indoor heat exchanger temperature are added Temperature of indoor heat exchanger For these signals Operation mode and Com pressor revolution indoor heat exchanger tem perature the outdoor unit controller monitors the input current to the inverter and performs the followed operation within the range that current does not exceed the allowable value Contents of operation command signal Serial signal from outdoor unit controller to indoor unit controller The following signals are sent from the outdoor unit controller The current operation mode The current compressor revolution Outdoor temperature Existence of protective circuit operation For transferring of these signals the indoor unit controller monitors the contents of signals and judges existence of trouble occurrence Contents of judgment are described below Whether distinction of the current operation status meets to the operation command signal Whether protective circuit operates When no signal is received from the outdoor unit controller it is assumed as a trouble Compressor operation control Operations followed to judgment 4 way valve control of serial signal from indoor side FILE NO SVM 10017 9 2 Operation Description LOON de S 8 9 10 11 12 13 14
32. 2 1 pc Attach the valve cover ST1T 4 x 102 1 pc e Insert the upper part to the upper cabinet set the hook claw of the valve cover to square holes at three positions of the main unit and attach it pushing upward Front cabinet 1 Detachment Perform work of item 1 of Remove upper screw ST1T 4 x 102 4 pcs of the front cabinet and lower screws ST1T 4 x 102 8 pcs of the front cabinet e Both side of front cabinet envelop the unit so remove it by pulling sideward 2 Attachment 1 Assemble front cabinet to the unit 2 Attach the removed screws to the original positions 75 Part name Inverter assembly Procedures 1 Perform work of item 1 of D 2 Remove screw ST1T 4 x 102 1 pc of the upper part of the front cabinet f removing the inverter cover in this condition the P C board can be checked e fthere is no space in the upper part of the upper cabinet perform work of 2 Be careful when checking the inverter because high voltage circuit is incorporated in it 3 Perform discharging by connecting the polarities by discharging resistance approx 100040W or plug of soldering iron to O terminals of the C13 printed CAUTION HIGH VOLTAGE is attached electrolytic capacitor 760 uF 400 WV on the P C board Be careful to discharge the capacitor because the electrolytic capacitor cannot naturally discharge and voltage remains dependin
33. 4 L 5 Fan speed M L x 1 4 L Linear approximation from M and L M WB 4 Fan speed M L x 2 4 L L W6 Table 1 Indoor fan air flow rate Fan speed Air flow rate rpm m3 h FILE NO SVM 10017 Description Symbols UH Ultra High H High M Medium M Medium L Low L Low L Low UL Ultra Low SUL Super Ultra Low The fan speed broadly varies due to position of the louver etc The described value indicates one under condition of inclining downward blowing 1 When setting the fan speed to L Mor H on the remote controller the operation is performed with the constant speed shown in Fig 1 2 When setting the fan speed to AUTO on the remote controller revolution of the fan motor is controlled to the fan speed level shown in Fig 2 and Table 1 according to the setup tempera ture room temperature and heat exchanger temperature FILE NO SVM 10017 Operation applicable data etc Description 2 Indoor fan lt ln heating operation gt 1 When setting the fan speed to L motor control Mor H on the remote controller the operation is per formed with the constant speed shown in Fig 3 and Table 1 2 When setting the fan speed to AUTO on the remote controller revolution of the fan motor is controlled to the fan speed level shown in Fig 5 according to the set Indication Fan speed temperature an
34. 5 If the status of compressor OFF continues for 15 minutes the room temperature after selecting an operation mode COOL HEAT reselect an operation mode DRY operation DRY operation is performed according to the difference between room temperature and the setup temperature as shown below In DRY operation fan speed is controlled in order to prevent lowering of the room temperature and to avoid air flow from blowing directly to persons Fan speed 26 1 Detects the room temperature Ta when the DRY operation started 2 Starts operation under conditions in the left figure according to the temperature difference between the room tempera ture and the setup temperature Tsc Setup temperature Tsc Set temperature on remote controller Ts 0 0 to 1 0 3 When the room temperature is lower 1 C or less than the setup temperature turn off the compressor 2 Indoor fan motor control COOL ON Fan speed setup Fan speed COOL HEAT DRY Operation flow and applicable data etc lt cooling operation gt This operation controls the fan speed at indoor unit side The indoor fan cross flow fan is operated by the phase control induction motor The fan rotates in 3 stages in MANUAL mode and in 5 stages in AUTO mode respec tively Table 1 MANUAL indication Fan speed i w w cp La A Air volume AUTO 3 Fan speed M L x 3
35. AL LOUVER HOSE DRAIN CAP DRAIN MOTOR STEPPING REFRIGERATION CYCLE ASSY PIPE SUCTION PIPE SUCTION PIPE SHIELD HOLDER SENSOR 43722312 43739323 43720323 43739324 43739321 43721409 43782309 43769615 43783003 43762326 43760317 43707311 FILE SVM 10017 BEARING ASSY MOLD BEARING BASE ASSY CROSS FLOW FAN MOTOR BAND LEFT MOTOR BAND RIGHT FAN MOTOR INSTALLATION PLATE REMOTE CONTROLLER WIRELESS HOLDER REMOTE CONTROL TERMINAL COVER CORD MOTOR LOUVER PIPE HOLDER FILE NO SVM 10017 13 2 Outdoor Unit gt Cr Q V On 7 CAPILARY TUBE Location Location Description Description No No 43T19335 FAN GUARD 43749327 CUSHION RUBBER 43T20324 PROPELLER FAN 43741423 COMPRESSOR Made in China 43T00482 FRONT CABINET 43T19337 PACKED VALVE COVER 43743403 CONDENSOR ASSEMBLY 43T00481 UPPER CABINET 43T62323 TERMINAL COVER 43T00448 FIXING PLATE VALVE 43T19341 FIN GUARD 43742331 BASE PLATE ASSEMBLY 43747308 CAPILLARY TUBE 1 0 DIA 43T79305 DRAIN NIPPLE 43746331 VALVE PACKED 9 52 DIA 43746351 REACTOR 43747332 BONNET 9 52 DIA 43746343 4 WAY VALVE 43746332 VALVE PACKED 6 35 DIA 43T63320 4 WAY VALVE COIL ASSEMBLY 43747331 BONNET 6 35 DIA 43T04305 PARTITION 43T21400 FAN MOTOR 43739325 MOTOR BASE 43747001 NUT FLANGE 43T39334 MOTOR BASE CONNECTION PLATE 1 2 3 4 5 6 7 8 13 4 P C Board Layout Location
36. DRY OPERATION COOLING ONLY For dehumidification a moderate cooling performance is controlled automatically 1 Press MODE Select Dry 2 Press g MODE Set the desired temperature 5 Hi POWER OPERATION To automatically control room temperature and airflow for faster cooling or heating operation except in DRY and FAN ONLY mode Press HI POWER Start and stop the operation 6 ECO OPERATION To automatically control room to save energy except in DRY and FAN ONLY mode Press ECO Start and stop the operation Note Cooling operation the set temperature will increase automatically 1 degree hour for 2 hours maximum 2 degrees increase For heating operation the set temperature will decrease 7 TEMPORARY OPERATION In case of the misplaced or discharged remote control e Pressing the RESET button the unit can start or stop without using the remote control e Operation mode is set on AUTOMATIC operation preset temperature is 24 C and fan operation is automatic speed 8 TIMER OPERATION Setting the ON Timer Setting the OFF Timer 1 Press o Set the desired ON timer Press o Set the desired OFF timer 2 Press Set the timer Press Set the timer 3 Press Cancel the timer Press Everyday timer allows the user to set both the ON amp OFF timers and will be activated on a daily basis Setting Everyday Timer 1 Press Set the ON timer 3 Press 4 Press
37. FILE NO SVM 10017 TOSHIBA SERVICE MANUAL AIR CONDITIONER SPLIT TYPE Indoor Unit Outdoor Unit lt High Wall Heat PumpType gt lt Heat Pump Type gt RAS 107SKV E3 RAS 107SAV E3 Feburary 2010 10 11 12 13 FILE NO SVM 10017 CONTENTS SAFETY PRECAUTIONS 2 SPECIFICATIONS uu asss aaa aae eccL ususi aande cu Dean recie enne 4 REFRIGERANT R410A 6 CONSTRUCTION VIEWS 14 WIRING DIAGRAMN 2 16 SPECIFICATIONS OF ELECTRICAL PARTS 18 REFRIGERANT CYCLE DIAGRAM 20 CONTROL BLOCK DIAGRAM 22 OPERATION DESCRIPTION 24 INSTALLATION PROCEDURE eeen eenen eenen nnn 44 HOW TO DIAGNOSE THE TROUBLE 57 HOW TO REPLACE THE MAIN PARTS 73 EXPLODED VIEWS AND PARTS LIST 81 FILE NO SVM 10017 1 SAFETY PRECAUTIONS Fo
38. Outdoor Unit Inverter Assembly 1055919 09 Aejay i YT 99 9p Joopul 9 1098 U IH ut 100pinQ r 12 1ueuno 19 0 Gd 2 041009 sep 1 jue uno Indu sis ulu s Josues 1eoH Josues JOOPINO Josues ebueyosiq 4 U01 991109 10108 U IH Ov 020 JeueAu Josues juan J9149Au02 6008 DOW 8 Od INVH9VIG 2018 2 2 Josues juan Ol LINN HOOQNI 103 ZH09 A0E2 022 2 09 0 22 FILE NO SVM 10017 9 OPERATION DESCRIPTION 9 1 Outline of Air Conditioner Control This air conditioner is a capacity variable type air conditioner which uses AC or DC motor for the indoor for motor and the outdoor fan motor And the capacity proportional control compressor which can change the motor speed in the range from 11 to 96 rps is mounted The DC motor drive circuit is mounted to the indoor unit The compressor and the inverter to control
39. SING A FIRE HAZARD PLACE THE UNIT WELL AWAY MORE THAN 2 M FROM HEAT SOURCES SUCH AS RADIATORS HEAT REGISTORS FURNACE STOVES ETC WHEN MOVING THE AIR CONDITIONER FOR INSTALLATION IN ANOTHER PLACE BE VERY CARE FUL NOT TO ALLOW THE SPECIFIED REFRIGERANT R410A TO BECOME MIXED WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CIRCUIT IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT THE GAS PRESSURE IN THE REFRIGERATION CIRCUIT WILL BECOME ABNORMALLY HIGH AND IT MAY RESULT IN THE PIPE BURSTING AND POSSIBLE PER SONNEL INJURIES IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE SERVICE WORK AND THE INSTALLATION WORK IMMEDIATELY LET FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED SUCH AS BY FIRE GENERATION OF POISONOUS GAS MAY RESULT Never modify this unit by removing any of the safety guards or bypass any of the safety interlock switches Do not install in a place which cannot bear the weight of the unit Personal injury and property damage can result if the unit falls After the installation work confirm that refrigerant gas does not leak If refrigerant gas leaks into the room and flows near a fire source such as a cooking range noxious gas may generate The electrical work must be performed by a qualified electrician in accordance with the Installation Manual Make sure the air conditioner uses an exclusive circuit An insufficient circuit capacity or inappropriate installation may cause fire
40. aler FILE NO SVM 10017 2 SPECIFICATIONS 2 1 Specifications Unit model Cooling capacity Outdoor Cooling capacity range Heating capacity Heating capacity range Power supply Electric characteristic Outdoor v D 9121912121219 5131215 53 5 3 3 3 5 6 7 lt 6 312 312 5 2 5 2 S S x zz 9 Sg 5 8 els 319 B gt Cooling Heating dB A dB A dB A dB A Cooling Heating 2 c 3 Cooling Heating g Cooling Heating o z Cooling Heatin Outdoor Unit model Dimention 8 8 8 Net weigh 5 3 5 S o 5 Cooling Heating i m gt 8 T Q 3 3 3 131 3 3 x lt S 5 5 3 Cooling Heating m min w a Jale 3 3 3 3 5 lt o 3 0 m 3 3 3 gt 3 5 s gt 3 z 5 5 3 X 3 13 2 S Blo ES T amp 3 kg Interconnection Cooling Heating
41. arge charging vollage DC280V remains and discharging takes a lot of time After turning off the power source if touching the charging section before discharging an electrical shock may be caused Discharge the electrolytic capacitor completely by using soldering iron etc lt Discharging method gt 1 Remove the inverter cover plating by opening four mounting claws As shown below connect the discharge resistance approx 100Q40W or plug of the soldering iron to voltage between terminals of the C12 CAUTION HIGH VOLTAGE is indicated electrolytic capacitor 500uF 400V on P C board and then perform discharging 2 Inverter cover Plug of PC board Soldered surface 57 FILE NO SVM 10017 11 1 1 Operation which is not a trouble Program operation For controlling the air conditioner the program operations are built in the microcomputer as described in the following table If a claim is made for running operation check whether or not it meets to the contents in the following table When it does we inform you that it is not trouble of equipment but it is indispensable for control ling and maintaining of air conditioner Operation of air conditioner When power breaker is turned ON the operation lamp Green of the indoor unit flashes Table 11 1 1 Description The OPERATION lamp of the indoor unit flashes when power source is turned on If 0 button is operated
42. at it does not fall 6 Cut the motor lead at the point which is 100 mm apart from the connector toward the fan 7 Use the connector used for the inverter and pinch the lead wires using the closed end splice 1 Perform work of item 1 of D 1 of 2 Extract refrigerant gas 3 Remove the partition board ST1T 4 x 100 3 pcs 4 Remove the sound insulation material 5 Remove the terminal cover of the compressor and disconnect the lead wire of the compressor thermo and the compressor from the terminal 6 Remove the pipe connected to the compressor with a burner e Make sure the flame does not touch the 4 way valve 7 Remove the fixing screw of the base plate and heat exchanger ST1T 4 x 107 2 pcs 8 Pull upward the refrigeration cycle 9 Remove the nut fixing the compressor to the base plate 1 Perform work of item 1 of D 1 of 2 and 3 2 Remove the screw fixing the reactor ST1TD4 x 102 2 PCS 77 FILENO SVM 10017 Remarks Fan motor Propeller fan Closed end Flange nut Reactor Part name Fan guard Procedures 1 Detachment 1 Perform work of item 1 of and 1 of Requirement Perform the work on a corrugated cardboard cloth etc to prevent scratches to the product 2 Remove the front cabinet and place it down so that the fan guard side faces downwards Remove the hooking claws by pushing a minus screwdriv
43. ated to flare processing for R410A A mm Outer diameter mm Thickness mm Nominal diameter Flare tool for R410A Conventional flare tool clutch type Clutch type Wing nut type 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 2 0 to 2 5 1 0 to 1 5 2 0 to 2 5 Table 3 2 4 Dimensions related to flare processing for R22 A mm Outer diameter mm Thickness mm Flare tool for R22 clutch type Clutch type Wing nut type Nominal diameter Conventional flare tool 0 5 to 1 0 1 0 to 1 5 0 5 to 1 0 1 0 to 1 5 0 5 to 1 0 1 5 to 2 0 0 5 to 1 0 1 5 to 2 0 Table 3 2 5 Flare and flare nut dimensions for R410A Nominal Outer diameter Thickness Dimension mm Flare nut width diameter mm mm B C mm FILE NO SVM 10017 Table 3 2 6 Flare and nut dimensions for R22 Nominal Outer diameter Thickness Dimension mm Flare nut width diameter mm mm B mm lo 45 Fig 3 2 2 Relations between flare nut and flare seal surface 2 Flare Connecting Procedures and Precautions a Make sure that the flare and union portions do not have any scar or dust etc b Correctly align the processed flare surface with the union axis c Tighten the flare with designated torque by means of a torque wrench The tightening torque for R410A is the same as that f
44. board Is the rotation signal DC 5 0 V output between 2 gray lead wire and 3 brown lead wire of the motor connector CN33 when rotating the cross flow fan by hand in no operating status 1 pulse one turn Replace the fan motor Replace connecting the cable or power cord thermal fuse and Replace the control Normal P C board terminal block 65 FILE NO SVM 10017 4 Troubleshooting for remote control The unit does not beep at all OPERATION lamp on indoor unit is not indicated Press 0 button 15 transmission mark indicated YES Reset the remote control by take off batteries Is receiver on indoor unit exposed to direct sunlight Does indoor unit operate when moving remote control near receiver or indoor unit Press 6 button YES Batteries are exhausted Is transmission mark indicated YES Does indoor unit beep and operate YES Is there any thyristor fluorescent light nearby Does indoor unit start to operate by automatic restart function Does radio sound is affected by remote control when a signal is transmitted at distance of 5 cm from radio Remote control is defective P C board is defective Avoid direct Keep indoor unit Replace Replace Normal sunlight away from P C board batteries operation thyristor fluorescent l
45. board assemble 4 Attach the new contro board assembly Note 4 When attaching the new control board assembly insert the P C board into the guide rail groove correctly 79 FILE NO SVM 10017 Remarks CN703 CN701 CN601 CN602 CN500 As CN300 and CN701 are connectors with lock remove while pushing the part indicated by an arrow Part name Replacement of temperature sensor for servicing only Common service parts of sensor TO TD These are parts for servicing sensors Please check that the accessories shown in the right table are packed Procedures 1 Cutthe sensor 100 mm longer than old one Cut the protective tube after pulling out it 200 mm Move the protective tube toward the thermal sensor side and tear the tip of lead wire in two then strip the covering part Pass the stripped part through the thermal constringent tube Cut the old sensor 100 mm length on the connector side and recycle that connector Tear the lead wire in two on the connector side and strip and covering part Twist the leads on the connector and sensor sides and solder them Move the thermal constringent tubes toward the soldered parts and heat them with the dryer and constring them Wind the attached color tape round the both terminals of the protective tube when colored protective tube is used 10 Fix the sensor again NOTES 1 Store the joint part of the sensor and the connector
46. button during the f or 8 OF s m 4 2 Press 2 Set the OFF timer ark flashing During the every day timer is activation both arrows or are indicated Note e Keep the remote control in accessible transmission to the indoor unit otherwise the time lag of up to 15 minutes will occur The setting will be saved for the next same operation FILE NO SVM 10017 9 PRESET OPERATION Set your preferred operation for future use The setting will be memorized by the unit for future operation except air flow direction 1 Select your preferred operation 2 Press and hold PRESET for 3 seconds to memorize the setting The mark displays 3 Press PRESET Operate the preset operation 10 AUTO RESTART OPERATION To automatically restart the conditioner after the power failure Power of the unit must be on Setting 1 Press and hold the RESET button on the indoor unit for 3 seconds to set the operation 3 beep sound and OPERATION lamp blink 5 time sec for 5 secpmds Do not operate ON timer and OFF timer 2 Press and hold the RESET button on the indoor unit for 3 seconds to cancel the operation 3 beep sound but OPERATION lamp does not blink 11 QUIET OPERATION To operate at super low fan speed for quiet operation except in DRY mode Press QUIET Start and stop the operation Note Under certain conditions QUIET operation may not provide adequate cooling or heating due to low sound features
47. called By removing the oxide film and any foreign solder and is an alloy of tin and lead Since it is matter on the metal surface it assists the flow weak in adhesive strength do not use it for of brazing filler refrigerant pipes In the brazing process it prevents the metal surface from being oxidized By reducing the brazing filler s surface tension the brazing filler adheres better to the treated metal 1 2 2 Characteristics required for flux Activated temperature of flux coincides with the brazing temperature Due to a wide effective temperature range flux is hard to carbonize It is easy to remove slag after brazing The corrosive action to the treated metal and brazing filler is minimum It excels in coating performance and is harm less to the human body As the flux works in a complicated manner as described above it is necessary to select an adequate type of flux according to the type and shape of treated metal type of brazing filler and brazing method etc 3 Types of flux Noncorrosive flux Generally it is a compound of borax and boric acid It is effective in case where the brazing tem perature is higher than 800 C Activated flux Most of fluxes generally used for silver brazing are this type It features an increased oxide film removing capability due to the addition of compounds such as potassium fluoride potassium chloride and sodium fluoride to the borax boric acid
48. chor bolt N Connection with power supply plug IEEE Attach power supply plug with power cord nti and plug it into wall outlet An approved P t gt O gt power supply cord and must be used a NOTE Perform wiring work being sure the wire length is Fig 10 3 4 long enough 5 mm dia hole 10 3 4 Wiring Connection How to connect the connecting cable Mounting screw 4 25L Wiring the connecting cable can be carried ient out without removing the front panel Pu local parts 1 Remove the air inlet grille Open the air inlet grille upward and pull it toward you 2 Remove the terminal cover and cord clamp 3 Insert the connecting cable or as according to local regulations codes into the pipe hole on the wall 4 Pull the connecting cable through the cable slot Failure to securely install the unit may result in on the rear panel so that it protrudes about personal injury and or property damage if the 15 cm out of the front unit falls 5 Insert the connecting cable fully into the terminal block and secure it tightly with screws n case of block brick concrete or similar type 6 Tightening torque 1 2 Nem 0 12 kgfem walls drill 5 mm holes in the wall 7 Secure the connecting cable with the cord clamp Tor tHE MOUNTING Se EWS 8 Attach the terminal cover rear plate bushing and NOTE air inlet grille on the indoor unit Fig 10 3 5 Install the
49. cking procedure Measure the resistance value of each winding by using the tester Position Resistance value Red White White Black 1 19 Black Red Under 20 G Outdoor fan motor Model WLF 240 20A 1 Measure the resistance value of winding by using the tester Position Resistance value White Black 260 1 Black Red 235 2 For details refer to Section 10 9 70 Outdoor temperature sensor TO discharge temperature sensor TD suction temperature exchanger temperature sensor TE FILE NO SVM 10017 Disconnect the connector and measure resistance value with the tester Normal temperature TGa Heat pump model only TO TE Refer to the TA TC characteristic table in Indoor Refer to Table 10 8 3 No 1 11 6 4 Checking Method for Each Part Part name Electrolytic capacitor For raising pressure smoothing Checking procedure Turn OFF the power supply breaker Discharge all three capacitors completely Check that safety valve at the bottom of capacitor is not broken Check that vessel is not swollen exploded Check that electrolytic liquid does not blow off Check that the normal charging characteristics are show in continuity test by the tester Case that product is good Pointer swings once and returns slowly When ee Sons performing test once again Solde
50. d room temperature W8 3 Min air flow rate is controlled by temperature of the indoor heat WA exchanger Tc as shown in Fig 4 4 Cold draft prevention the fan speed is controlled by temperature of the indoor heat exchanger Tc as shown in Fig 6 5 In order to prevent Cold draft when compressor step during heating operation Then louver will move to upper position and fan speed will reduce or off WE Limited to Min WD tap No limit Fan speed TC 42 a 10 x WD W8 W8 W8 W8 In up operation 1 in down operation 0 Basic fan control Fan speed AUTO Cold draft preventive control Line approximate H and SUL with Tc Stop Fan speed MANUAL in starting Fan speed AUTO in stability Fan speed AUTO in starting 1 Fan speed M L x 124 L Kiele fii MANUAL stab u o limitation while Tan mode IS In stability 2 Fan speed M L x 2 4 L A When Tsc gt 24 is 24 and when Tsc lt 24 A is Tsc 3 Fan speed M L x 3 4 L Tsc Set value Calculated with linear approximation from M and L Fig 5 In starting and in stability In stability Until 12 minutes passed after operation start When 12 to 25 minutes passed after operation start FAN AUTO When 12 to 25 minutes passed after operation and room temp is higher than set temp 3 C start and room temp is 3 C or lower than set temp When 25 m
51. door unit 3 Push and hold CHK e button on the Remote Control by thetip of the pencil 00 will be shown shown on the display 4 Press MODE e during pushing CHK e B will show on the display and 00 will disappear and the air conditioner will turn OFF The Remote Control B is memorized Note 1 Repeat above step to reset Remote Control to be A 2 Remote Control A has mot A display 3 Default setting of Remote Control from factory is A B Display 00 Display 1 Purpose This operation is to operate only one indoor unit using one remote controller Description When operating one indoor unit in a situation where two indoor units have been installed in the same room or nearby rooms this operation prevents the remote controller signal from being received simultaneously by both units thus preventing both units from operating Operation The indoor unit on which the remote controller selection has been set to B receives the signal of the remote control ler also set to B At the factory the remote controller selection is set to A on all the indoor units There is no A setting display FILE NO SVM 10017 Operation flow and applicable data etc Description 13 COMFORT Cooling mode The principles of comfort sleep mode are SLEEP The preset temperature will increase as Quietness for more comfortable When show on ECO operation Item No 9 room temperature reach setting tempera
52. e When temperature of the indoor heat exchanger drops in the range from 46 C to under 55 C the compressor speed is kept Q zone 2 When temperature of the indoor heat exchanger rises to 55 C or higher the compressor speed is reduced P zone 3 When temperature of the indoor heat exchanger does not rise to 50 C or when it drops below to 46 C the capacity control operation returns to the usual control in heating operation R zone 6 Defrost control Operation flow and applicable data etc This function removes frost adhered to the outdoor Only in heat exchanger operation The temperature sensor of the outdoor heat ex changer Te sensor judges the frosting status of the outdoor heat exchanger and the defrost operation is performed with 4 way valve reverse defrost system Start of heating operation Outdoor heat exchanger temperature 0 1015 Operation time Minute 2740 The minimum value of sensor 10 to 15 minutes after start of operation is stored in memory as Te0 Table 1 When Te0 TE gt 2 5 continued for 2 minutes in zone defrost operation starts When the operation continued for 2 minutes in B zone defrost operation starts When gt 3 continued for 2 minutes in C zone defrost operation starts 21 FILE NO SVM 10017 Description The necessity of defrost operation is detected by the outdoor heat exchan
53. e front panel electrical part horizontal louver heat exchanger and the cross flow fan following procedure 5 2 Remove the 2 screws fixing the base bearing 3 Remove the bearing from the base bearing If the housing protrudes from the base bearing put the housing in position and attach the bearing to the base bearing 2 Screws FILENO SVM 10017 12 2 Outdoor Unit Part name Procedures Remarks Common 1 Detachment Upper cabinet procedure 1 Stop operation of the air conditioner and E turn off the main switch and breaker of the SP wwe cover air conditioner Remove the valve cover ST1T 4 x 100 P 1 pc After removing screw remove the valve cover pulling it downward Remove the wiring cover ST1T 4 x 10 2 pcs and then remove the power cord connecting cable and cord clamp 5721704 x 162 pcs Remove the upper cabinet ST1T 4 x 102 5 pcs e After removing screws remove the upper cabinet pulling it upward Valve cover 2 Attachment Upper cabinet Attach the upper cabinet ST1T 4 x 102 5 pcs Hook the rear side of the upper cabinet to the claw of the rear cabinet and then place it on the front cabinet After connecting the power cord and connecting cable attach the cord clamp and wiring cover e Insert the upper part into the upper cabinet and insert the claw which has been hooked to the lower part into the square hole and then fix it with screw ST1T 4 x 10
54. e low pressure side handle of the td it toth ified tightening t gauge manifold valve outdoor Unite Species ne 4 Operate the vacuum pump to start evacuating Incorrect connections may cause not only a gas Perform evacuating for about 15 minutes if the leakage but also damage to the refrigerant cycle piping length is 20 meters 15 minutes for T 20 meters assuming a pump capacity of 27 liters are at indoor unit side per minute Then confirm that the compound pressure gauge reading is 101 76 cmHg 5 Close the low pressure side valve handle of gauge manifold 6 Open lully the valve stem of the packed valves both side of Gas and Liquid 7 Remove the charging hose from the service port 8 Securely tighten the caps on the packed valves Flare at outdoor unit side Compound pressure gauge Pressure gauge Fig 10 4 5 101 kPa 76 cmHg gt Manifold valve gt A 4 Handle Lo Handle Hi Keep full closed lt Shaping pipes gt 1 How to shape the pipes Charge hose For R410A only hose For R410A only x Connecting pipe Shape the pipes along the incused line on the ON Vacuum pump adapter for Ss H counter flow prevention outdoor unit For 410 only 2 How to fit position of the pipes Put the edges of the pipes to the place with a Vacuum distance of 85
55. e should be made at a slight downward slant on the outdoor side Do not rise the drain hose Do not form the drain hose into the waved shape Jom Lx 7127 Do not put the Do not put the drain drain hose end hose end in the into water drainage ditch Fig 10 3 17 2 Put water in the drain pan and make sure that the water is being drained outside 3 When connecting extension drain hose insulate the connection part of extension drain hose with shield pipe Shield pi ie cove Drain hose Inside room Extension drain hose Fig 10 3 18 Install the drain pipe for proper drainage Improper drainage can result in water dripping inside the room This air conditioner has been designed to drain water collected from condensation which forms on the back of the indoor unit to the drain pan Therefore do not locate the power cord and other parts at a high place than the drain guide Wall Drain guide Space for pipes Fig 10 3 19 10 4 Outdoor Unit 10 4 1 Installation place A place which provides the spaces around the outdoor unit as shown in the left diagram A place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration FILE NO SVM 10017 10 4 2 Refrigerant piping connection lt Flaring gt 1 Cut the pipe with a pipe cutter A place where the operation noise and discharged air do not disturb users
56. e to keep the piping end open 5 Adjust the flow rate of Nitrogen gas so that it is lower than 0 05 m Hr or 0 02 MPa 0 2kgf cm by means of the reducing valve 6 After performing the steps above keep the Nitrogen gas flowing until the pipe cools down to a certain extent temperature at which pipes are touchable with hands 7 Remove the flux completely after brazing Nitrogen gas cylinder From Nitrogen cylinder gas Rubber plug Fig 3 5 1 Prevention of oxidation during brazing 4 1 Indoor Unit Front panel oo Knock out system 250 FILE NO SVM 10017 4 CONSTRUCTION VIEWS Air inlet Air filter 195 250 52 Air outlet 58 8 Knock out system F 55 60 60 55 105 500 135 T T T T T T 143 T T IT B il 8 63 26 HE Remote controller holder Connecting pipe 0 37 Drain hose 0 5m 290 Flare 6 35 Hanger Connecting pipe 0 37m Flare 9 52 605 235 235 For stud bold 28 0 10 215 215 For stud bold 6 Hanger 26 LO LO Soe coo o o 0 U be
57. eamless copper pipes which are made of either copper or copper alloy and it is desirable that the amount of residual oil is less than 40 mg 10 m Do not use copper pipes having a collapsed deformed or discolored portion especially on the interior surface Otherwise the expansion valve or capillary tube may become blocked with contaminants As an air conditioner using R410A incurs pres sure higher than when using R22 it is necessary to choose adequate materials Thicknesses of copper pipes used with R410A are as shown in Table 3 2 1 Never use copper pipes thinner than 0 8 mm even when it is available on the market FILE NO SVM 10017 Table 3 2 1 Thicknesses of annealed copper pipes Thickness mm Nominal diameter Outer diameter mm R410A 2 Joints For copper pipes flare joints or socket joints are used Prior to use be sure to remove all contaminants a Flare Joints Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm In such a case socket joints can be used Sizes of flare pipe ends flare joint ends and flare nuts are as shown in Tables 3 2 3 to 3 2 6 below b Socket Joints Socket joints are such that they are brazed for connections and used mainly for thick pipings whose diameter is larger than 20 mm Thicknesses of socket joints are as shown in Table 3 2 2 Table 3 2 2 Minimum thicknesses of socket joints Reference ou
58. ect the connecting hose to the cylinder and the sides connecting port of the electronic balance and charge liquid refrigerant For refrigerant charging see the figure below Place the handle of the gauge manifold Low in the fully opened position and turn on the vacuum pump s power switch Then evacuating the refrigerant in the cycle 1 Never charge refrigerant exceeding the specified amount 2 If the specified amount of refrigerant cannot be charged charge refrigerant bit by bit in COOL mode 3 Do not carry out additional charging When additional charging is carried out if refrigerant leaks the refrigerant composition changes in the refrigeration cycle that is characteristics of the air conditioner changes refrigerant exceeding the specified amount is charged and working pressure in the refrigeration cycle becomes abnormally high pressure and may cause a rupture or personal injury Indoor unit Outdoor unit Refrigerant cylinder Ben siphon Open close valve for charging Electronic balance for IAII charging Service port Fig 3 4 1 Configuration of refrigerant charging FILE NO SVM 10017 1 Be sure to make setting so that liquid can be charged 2 When using a cylinder equipped with a siphon liquid can be charged without turning it upside down It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant Accordin
59. ect the motor connector CN31 after shut off the power supply or it will be a cause of damage of the motor 63 FILE NO SVM 10017 2 Power is not turned on though Indoor P C board is replaced lt Confirmation procedure gt Turn on power supply Does operation lamp flash NO Is wired correctly to white and black lead wires of terminal board YES To item of Power is not turned 64 FILE NO SVM 10017 3 Only the indoor fan does not operate lt Check procedure gt Shut off the power supply once Turn the power supply Does the fan stop in NO operating status Control P C board is defective Replace board YES Start the operation with low fan setting in cool operation Does connecting terminal connecting cable or power supply cord completely Does not found the short wire about connecting cable and power cord Does AC 120 V or higher voltage apply to between red and black lead of fan motor YES NO Does the fan rotate YES YES Shut off the power supply Change the setting of Does the cross flow NO cooling high fan fan rotate normally na YES Turn on the power supply Does the fan speed NO Operation become higher stops YES Motor control circuit failure IC31 Q301 or 12 V Switching power supply failure Replace the P C
60. er Press or OFFA button If there is no fault with a code the indoor unit will beep once Beep and the display of the remote controller will change as follows pad Dt de see d me 32 The TIMER indicator of the indoor unit flashes continuously 5 times per 1 sec Check the unit with all 52 check codes HH to 33 as shown in Table 9 4 1 Press ON Y or OFF Y button to change the check code backward If there is a fault the indoor unit will beep for 10 seconds Beep Beep Beep Note the check code on the display of the remote controller 2 digits alphanumeric will be indicated on the display All indicators on the indoor unit will flash 5 times per 1 sec Press CLR button After service finish for clear service code in memory 7F is indicated on the display of the remote control Press 0 button to release the service mode The display of the remote controller returns to as it was before service mode was engaged Fig 9 4 1 60 FILE NO SVM 10017 11 4 2 Caution at servicing 1 After servicing push the button to return to the normal mode 2 After servicing by the check code turn off breaker of the power supply and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status However the check codes are not deleted even if the power supply is turned off because they are stored in t
61. er according to the arrow mark in the right figure and remove the fan guard 2 Attachment Insert the claws of the fan guard in the hole of the front cabinet Push the hooking claws 8 positions by your hand and fix the claws FILE NO SVM 10017 Remarks ax Minus screwdriver 4 Hooking claw p Requirement This completes all the attaching work Check that all the hooking claws are fixed to the specified positions 78 Part name Control board assembly Procedures 1 Disconnect lead wires and connectors connected from the control board assembly to other parts 1 Lead wires Connection with terminal block 3 wires Black White Orange Connection with compressor remove the connector 3P Connection with reactor remove the connector 2P Connectors 6 positions CN300 CN703 Outdoor fan white See Note 1 CN701 4 way valve 3P Yellow CN601 TD sensor 2P White CN602 TO sensor 2P White CN500 Case thermo 2P White Note 1 As the connector has a stopper release the housing lock when removing Note 2 Hold the housing resin part with stopper and pull out to remove 2 Remove the control board assembly from the inver ter box Note 2 Remove the claw of the board support fixed to the inverter board and remove upwards holding the heat sink 3 Remove the three screws fixing the heat sink and control
62. essor The contents of control operation are same in cooling operation and heating operation 4 Current release This function prevents troubles on the electronic parts of the control compressor driving inverter This function also controls drive circuit of the compressor speed so that electric power of the compressor drive circuit does not exceed the specified value Outdoor unit inverter main Outdoor temp To circuit control current Setup of current release point Operating current lt High Setup value Reduce compressor speed Low Current decrease Capacity control continues Cooling current release value 45 C 3 60A aac 39 C 5 17A un Heating current Outdoor temp release value 7 72A 9 26A 10 80A 1 The input current of the outdoor unit is detected in the inverter section of the outdoor unit 2 According to the detected outdoor temperature the specified value of the current is selected 3 Whether the current value exceeds the specified value or not is judged 4 If the current value exceeds the specified value this function reduces the compressor speed and controls speed up to the closest one commanded from the indoor unit within the range which does not exceed the specified value 5 Release protective control by tempera ture of indoor heat exchanger Indoor heat exchanger temperature Indoor heat exchanger temperature Operation flow and a
63. exclusive for R410A Those which cannot be used for conventional refrigerant R22 2 Tools exclusive for R410A but can be also used for conventional refrigerant R22 3 Tools commonly used for R410A and for conventional refrigerant R22 The table below shows the tools exclusive for R410A and their interchangeability Tools whose specifications are changed for R410A and their interchangeability R410A Conventional air water air water heat pump installation heat pump installation Used tool Existence of Whether conven Whether new equipment new equipment tional equipment can be used with for R410A can be used conventional refrigerant Flare tool Pipe flaring Yes Note 1 O Copper pipe gauge for adjusting projection margin Flaring by conventional flare tool Yes Note 1 Note 1 Torque wrench For 012 7 Connection of flare nut Yes x Gauge manifold Evacuating refrigerant charge run check etc Yes Charge hose Vacuum pump adapter Vacuum evacuating Yes Electronic balance for refrigerant charging Refrigerant charge Yes Refrigerant cylinder Refrigerant charge Yes Leakage detector Gas leakage check Yes Charging cylinder Refrigerant charge Note 2 Note 1 When flaring is carried out for R410A using the conventional flare tools adjustment of projection margin is necessary For this adjustment a copper pipe gauge etc are necessary Note 2 Charg
64. g on the malfunction state in some cases NOTE This capacitor has mass capacity Therefore it is dangerous that a large spark generates if short circuiting between the polarities with screwdriver etc for discharging 4 Perform the work of 2 5 Remove the screw ST1T 4 x 102 1 pc fixing the main body and the inverter box 6 Remove the lead wire from the holder on the terminal block 7 Disconnect the connectors of various lead wires Requirement As each connector has a lock mechanism avoid removing the connector by holding the lead wire but by holding the connector 76 FILENO SVM 10017 Remarks Inverter cover PC board Soldered surface Discharging time Discharging period 10 seconds or more Terminal 1 block gp The connector is one with lock so remove it while pushing the part indicated by an arrow Be sure to remove the connector by holding the connector not by pulling the lead wire Part name Fan motor Compressor Reactor Procedures 1 Perform work of item 1 of and 1 of 2 2 Remove the flange nut fixing the fan motor and the propeller fan e Flange nut is loosened by turning clockwise To tighten the flange nut turn counter clockwise 3 Remove the propeller fan 4 Disconnect the connector for the fan motor from the inverter 5 Remove the fixing screws 4 pcs holding the fan motor by hand so th
65. ger temperature The conditions to detect the necessity of defrost operation differ in A B or C zone each Table 1 lt Defrost operation gt Defrost operation in A to C zones 1 Stop operation of the compressor for 20 seconds 2 Invert OFF 4 way valve 10 seconds after stop of the compressor 3 The outdoor fan stops at the same time when the compressor stops 4 When temperature of the indoor heat exchanger becomes 38 C or lower stop the indoor fan lt Finish of defrost operation gt Returning conditions from defrost operation to heating operation 1 Temperature of outdoor heat exchanger rises to 8 C or higher 2 Temperature of outdoor heat exchanger is kept at 5 C or higher for 80 seconds 3 Defrost operation continues for 15 minutes lt Returning from defrost operation gt 1 Stop operation of the compressor for approx 50 seconds 2 Invert ON 4 way valve approx 40 seconds after stop of the compressor 3 The outdoor fan starts rotating at the same time when the compressor starts FILE NO SVM 10017 Item 7 Louver positi 1 Louver control on Operation flow and applicable data etc This function controls the air direction of the indoor unit e The position is automatically controlled according to the operation mode COOL HEAT e The set louver position is stored in memory by the microcomputer and the louver returns to the stored position when the next opera
66. gly when charging refrigerant from the refrigerant cylinder to the equipment charge it turning the cylinder upside down if cylinder is not equipped with siphon Cylinder with siphon Cylinder without siphon Gauge manifold Gauge manifold OUTDOOR unit OUTDOOR unit Refrigerant cylinder Electronic balance Siphon R410A refrigerant is HFC mixed refrigerant Therefore if it is charged with gas the composi tion of the charged refrigerant changes and the characteristics of the equipment varies 3 5 Brazing of Pipes Fig 3 4 2 1 Phosphor bronze brazing filler tends to react 3 5 1 Materials for Brazing with sulfur and produce a fragile compound 1 Phosphor bronze brazing filler water solution which may cause a gas Silver brazing filler leakage Therefore use any other type of Silver brazing filler is an alloy mainly composed brazing filler at a hot spring resort etc and of silver and copper It is used to join iron copper coat the surface with a paint or copper alloy and is relatively expensive though 2 When performing brazing again at time of it excels in solderability servicing use the same type of brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 5 2 Flux Low temperature brazing filler 1 Reason why flux is necessary Low temperature brazing filler is generally
67. he fixed memory Table 11 4 1 Block distinction Operation of diagnosis function Check Block Check Cause of operation Air conditioner Remarks aa action code code status mm Indoor Short circuit or disconnec Operation Displayed when 1 Check the room temp sensor Ltt tion of the room continues error is detected 2 When the room temp sensor is board temperature sensor normal check P C board etc TA sensor r Being out of place Operation Displayed when 1 Check heat exchanger sensor disconnection short circuit continues error is detected 2 When heat exchanger sensor is or migration of heat normal check P C board exchanger sensor TC sensor I Lock of indoor fan or trouble All off Displayed when 1 Check P C board I 4 onthe indoor fan circuit error is detected 2 When board is normal check the motor Not 74 Trouble on other indoor Operation Displayed when Replace P C board displayed I PC boards continues error is detected r Return serial signal is not Operation Flashes when 1 When the outdoor unit never ting cable 14 71 sent to indoor side from continues trouble is operate and serial operation started detected on 1 Check connecting cable and signal 1 Defective wiring of return serial correct if defective wiring connecting cable signal and 2 Check 25A fuse of inverter 2 Operation of normal statu
68. i 2 te 80 ten d cm el e OO drum pr O X xH O N LZ 38 E 90 135 145 145 135 90 Installation plate outline Center line 4 2 Outdoor Unit 500 50 x 36 R15 6 5 l 5 5 Detail Drawing Back Leg 530 WS 280 267 25 Drain Outlet FILE NO SVM 10017 Air inlet f Installation Dimension 45 cm or More Air inlet 500 600 100 Air Outlet T 400 cm or More N 2 15 PEN 7 E 2 b 4 26 X 2 R5 al Q 11 14 36 Sl 50 Detail Drawing Front Leg 2 11x14 Hole For 8 10 Anchor Bolt Fan Guard COVER PV e __ N f TOSHIBA M E 500 11 280 Pitch 12 5 660 5 302 Liquid Side Flare 6 35 o Gas Side Flare 9 52 7 E L Service Port
69. ight Note Atter batteries replacement short circuit the metal terminal at the side of the battery compartment 66 FILE NO SVM 10017 11 5 2 Wiring Failure Interconnecting and serial signal wire 1 Outdoor unit does not operate 1 Is the voltage between indoor terminal block 2 and varied Confirm that transmission from indoor to outdoor is correctly performed based on the following diagram NOTE e Measurement should be performed 2 minutes and 30 seconds after starting of the operation e Be sure to prepare a diode for judgment Terminal block on indoor side Red 5277G White S5277G or equivalent G or J type Diode with rated voltage of 400 V or more is acceptable Tester Terminal block Normal time Voltage swings between DC15 V and 60 V Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while after operation started lt Check procedure gt Select phenomena described below 1 The outdoor unit stops 10 to 20 minutes after operation started and 10 minutes or more are required to restart the unit Gas circulation amount is down Gas shortage Gas leak Pipe clogging Measure gas pressure Thermo operation of compressor 2 If the unit stops once it dose not operate until the power will be turned on again To item of compressor does not operate 3 The outdoor unit stops 10 minutes to 1 hour after operation started and an alarm is displayed D
70. ight or bottom left piping After making slits on the front panel with a knife or similar tool cut them out with a pair of nippers or an equivalent tool Fig 10 3 13 Left hand connection with piping Bend the connecting pipes so that they are posi tioned within 43 mm above the wall surface If the connecting pipes are positioned more than 43 mm above the wall surface the indoor unit may be unstable When bending the connecting pipe make sure to use a spring bender to avoid crushing the pipe Refer to the table below for the bending radius of each connection pipe Outer diameter Bending radius To connect the pipe after installation of the unit figure To the front flare NS Gas side Liquid 3 R30 or less 26 35 R40 or less 09 52 R50 or less 012 7 Use polishing polyethylene core or the like for bending pipe k Outward form of indoor unit 1 9 Oe EH mM Use screwdriver handle Fig 10 3 14 NOTE If the pipe is incorrectly bent the indoor unit may be unstable on the wall After passing the connecting pipe through the pipe hole connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them Bind the auxiliary pipes two and connecting cable with facing tape tightly In case of leftward piping and rear leftward piping bind the auxiliary pipes two only with facing tape Indoor unit
71. ing cylinder for R410A is being currently developed In addition to the above exclusive tools the following equipments which serve also for R22 are necessary as the general tools 1 Vacuum pump 4 Reamer 9 Hole core drill 865 Use vacuum pump by attaching 5 Pipe bender 10 Hexagon wrench vacuum pump adapter 6 Level vial Opposite side 4mm 2 Torque wrench For 26 35 29 52 7 Screwdriver 11 Tape measure 3 Pipe cutter 8 Spanner or Monkey wrench 12 Metal saw Also prepare the following equipments for other installation method and run check 1 Clamp meter 3 Insulation resistance tester 2 Thermometer 4 Electroscope 10 FILE NO SVM 10017 3 4 Recharging of Refrigerant When it is necessary to recharge refrigerant charge the specified amount of new refrigerant according to the following steps Recover the refrigerant and check no refrigerant remains in the equipment EA When the compound gauges pointer has indicated 0 1 Mpa 76 cmHg place the handle Low in the fully closed position and turn off the vacuum pump s power switch Connect the charge hose to packed valve service port at the outdoor unit s gas side Keep the status as it is for 1 to 2 minutes and ensure Connect the charge hose to the vacuum pump that the compound gaugess pointer does not return adapter Set the refrigerant cylinder to the electronic balance Open fully both packed valves at liquid and gas conn
72. inutes or more passed after operation start FAN Manual Room temp lt Set temp 4 Room temp gt Set temp 3 5 Operation flow and applicable data etc 3 Capacity control The cooling or heating capacity depending on the load is adjusted According to difference between the setup value of tempera ture and the room temperature the capacity is adjusted by the compressor revolution Remote controller Indoor unit Set temp Ts Room temp Ta Ts Correction of Hz signal Detection of electromotive force of compressor motor winding Detection of motor speed and rotor position Correction value of Hz signal lt Operating Hz Inverter output change Commutation timing change Change of compressor speed FILE NO SVM 10017 Description 1 The difference between set temperature on remote controller Ts and room temperature Ta is calculated 2 According to the temperature difference the correction value of Hz signal which determines the compressor speed is set up 3 The rotating position and speed of the motor are detected by the electromotive force occurred on the motor winding with operation of the compressor 4 According to the difference resulted from comparison of the correction value of Hz signal with the present operation Hz the inverter output and the commuta tion timing are varied 5 Change the compressor motor speed by outputting power to the compr
73. ion door Outdoor P MPa ps lt Heating gt Tempeature Standard Heat exchanger Indoor Outdoor Compressor condition C pressure pipe temp fan mode fan mode revolution Outdoor P MPa tps NOTES 1 Measure surface temperature of heat exchanger pipe around center of heat exchaner path U bent Thermistor themometer 2 Connecting piping condition 5 m 20 FILE NO SVM 10017 8 CONTROL BLOCK DIAGRAM 8 1 Indoor Unit Functions Operation Louver Control Heat Exchanger Sensor Display Timer Temperature Sensor Display 3 minute Delay at Restart for Compressor Motor Revolution Control Infrared Rays Signal Receiver Initiallizing Circuit Processing Infrared Temperature Processing Rays a 1 gt 36 7KHz Indoor Fan Motor Clock Frequency Timer Oscillator Circuit Serial Signal Communication Control Serial Signal Transmitter Receiver EE Fags ace eee cA ss sipas OO E Noise Filter Louver Motor Remote Power Supply El From Outdoor Unit Serial Signal Communication REMOTE CONTROL Infrared Rays Remote Control Operation 5 Operation Mode Selection AUTO COOL DRY HEAT Temperature Setting Fan Speed Selection OFF TIMER Setting Louver Auto Swing Louver Direction Setting r ON TIMER Setting 21 FILE NO SVM 10017 8 2
74. ischarge temp error check code 03 1E Sensor temp error check code 02 1C Gas leak Miswiring of connecting wires of indoor outdoor units Refer to the chart in 10 6 Clogging of pipe and coming off TC sensor 67 FILE NO SVM 10017 2 Inspection procedures 1 When a PC board is judged to be defective check for disconnection burning or discolora tion of the copper foil pattern or this P C board 11 6 How to Check Simply the Main Parts 11 6 1 How to check the P C board Indoor unit 1 Operating precautions 1 When removing the front panel or the P C board be sure to shut off the power supply breaker 2 When removing the P C board hold the edge of the PC board and do not apply force to the parts 3 When connecting or disconnecting the connec tors on the PC board hold the whole housing Do not pull at the lead wire 3 Checking procedure Procedure Turn off the power supply breaker and remove the P C board assembly from electronic parts base Remove the connecting cables from the terminal block 2 The board consists of the following 2 parts a Main P C board part DC power supply circuit 5 V 12 V 15 V Indoor fan motor control circuit CPU and peripheral circuits buzzer and Driving circuit of louver b Indication unit of infrared ray receiving Infrared ray receiving circuit LED To check defect of the P C board follow the procedure described
75. k Installation r plate Shield pipe Active carbon catechin A Active carbon C catechin 4 eo AS P Remote control holder Pan head wood screw Vinyl tape Apply after carrying out a drainage test Batteries 600 mm or more Extension drain hose Not available provided by installer Before installing the wireless remote controller Loading Batteries 1 Remove the battery cover 2 Insert 2 new batteries AAA type following the and positions we FILE NO SVM 10017 For the rear left and left piping Wall Insert the cushion between the indoor unit and wall and tilt the indoor unit for better operation Aroana sup S N Do not allow the drain hose to get slack Cut the piping hole sloped slightly A AS Make sure to run the drain hose N sloped downward The auxiliary piping can be connected to the left rear left rear right right bottom right or bottom left Bottom Rear right Bottom left Insulate the refrigerant pipes separately with insulation not together 6 mm thick heat resisting polyethylene foam amp y 9 Batteries 2 Wireless remote controller 10 1 2 Optional installation parts P ty Parts name Q ty Refrigerant piping Liquid side 26 35 mm Gas side 9 52
76. k of indoor and outdoor unit When connecting the connecting cable to the outdoor unit terminal make a loop as shown in the installation diagram of indoor and outdoor unit to prevent water coming in the outdoor unit Insulate the unused cords conductors from any water coming in the outdoor unit Proceed them so that they do not touch any electrical or metal parts FILE NO SVM 10017 lt Stripping length of connection cable gt Terminal block H HH HB H HH 1 2 3 L N ale Connecting cable Power cord 4 2 A 60 1 50 Earth line Earth line Power cord Fig 10 4 8 Connecting cable 50 Hz 220 240 V Single phase Power source 60 Hz 220 230 V Single phase Maximum 8A running current Installation fuse rating 16A HO7RN F or 245 IEC66 1 5 mm or more Power cord CD Wrong wiring connection may cause some electrical parts burn out Be sure to comply with local codes on running the wire from indoor unit to outdoor unit size of wire and wiring method etc Every wire must be connected firmly This installation fuse 16A must be used for the power supply line of this air conditioner If incorrect or incomplete wiring is carried out it will cause an ignition or smoke Prepare the power supply for exclusi
77. luding compressor mm NOTES 1 The contents of items B and C and a part of item E are displayed when air conditioner operates 2 When item B and C and item B and a part of item E occur concurrently priority is given to the block of item B 3 The check codes can be confirmed on the remote controller for servicing _ 59 FILE NO SVM 10017 9 4 Self Diagnosis by Remote Controller Check Code 1 2 If the lamps are indicated as shown B to E in Table 9 3 1 execute the self diagnosis by the remote controller When the remote controller is set to the service mode the indoor controller diagnoses the operation condi tion and indicates the information of the self diagnosis on the display of the remote controller with the check codes If a fault is detected all lamps on the indoor unit will flash at 5Hz and it will beep for 10 seconds Beep Beep Beep The timer lamp usually flashes 5Hz during self diagnosis 9 4 1 How to Use Remote Controller in Service Mode 7 S TOSHIBA LOLS PRESET FAN e ONE TOUCH MODE QUIET SLEEP SWING ECO E Alphanumeric characters are used for the check codes 5 155 B is 6 is A h is B isC d is D Press CHECK button with a tip of pencil to set the remote controller to the service mode Til is indicated on the display of the remote controll
78. me setting for timer operation or the clock time is indicated The current time is always indicated except during TIMER operation Hi POWER indicator Indicates when the Hi POWER operation starts Press the Hi POWER button to start and press it again to stop the operation PRESET indicator Flashes for 3 seconds when the PRESET button is pressed during operation The mark is shown when holding down the button for more than 3 seconds while the mark is flashing Press another button to turn off the mark ECO indicator Indicates when the ECO is in activated Press the ECO button to start and press it again to stop operation A B change indicator remote controller When the remote controller switching function is set B appears in the remote controller display When the remote controller setting is A there is no indication at this position Comfort sleep Indicates when comfort sleep is activaled Press comfort sleep button to selectter Quiet Indicates when quiet is activated Press quiet button to start and press it again to stop operation One Touch Indicates when one touch comfort is activated Press one touch button to start the operation Swing Indicates when louver is swing Press swing button to start the swing operation and press it again to stop the swing operation 10 INSTALLATION PROCEDURE 10 1 Installation Diagram of Indoor and Outdoor Units 65 mm or more Hoo
79. mer setup Indoor unit Signal receiving Indoor unit control Command signal generating function of Indoor unit control indoor unit operation Indoor unit control _ e Calculation function temperature calculation Indoor fan motor Activation compensation function of indoor fan Louver motor Operation command Cold draft preventive function Timer function Serial signal send receive Indoor heat exchanger release control _ l Outdoor unit Serial signal send receive Outdoor unit control Inverter Frequency control of inverter output Waveform composite function Calculation function Compressor Temperature calculation Outdoor fan motor AD conversion function 4 way valve Quick heating function Delay function of compressor reactivation Current release function GTr over current preventive function Defrost operation function FILE NO SVM 10017 Item Operation flow and applicable data etc 1 Basic operation 2 Cooling Heating operation The operations are performed in the following parts by controls according to cooling heating conditions 1 Receiving the operation ON signal of the remote controller the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit 2 At the indoor unit side the indoor fan is operated according to the contents of 2 Indoor fan motor control and the louver according to the contents
80. n error is detected compressor is removed position windings of compressor detect circuit error occurred Replace P C board 2 Measure resistance between wires of compressor and perform short circuit Replace compressor 1 Current detect circuit error All off Displayed when Even if trying operation again all 4 error is detected operations stop immediately Replace P C board Being out of place All off Displayed when 1 Check outdoor temp sensors LIZI disconnection or short error is detected TE circuit of outdoor temp 2 Check P C board sensor Disconnection or short All off Displayed when 1 Check discharge temp sensor TD I U circuit of discharge temp error is detected 2 Check PC board sensor 1171 Outdoor fan drive system All off Displayed when Position detect error over current UT error error is detected protective operation of outdoor fan drive system fan lock etc Replace P C board or fan motor Not Outdoor heat exchanger Operation 1 Check outdoor heat exchanger displayed temp sensor error continues temp sensor TE 2 Check P C board Ondoor Compressor drive output All off Displayed when When 20 seconds passed after PC error Compressor error error is detected startup position detect circuit error board lock missing etc occurred Replace compressor Break down F17 Others Return serial signal has Operation Flashes when 1 Repeat Start and
81. n machine trouble make sure to insulate both the connecting pipes separately Fig 10 3 9 Use polyethylene foam as insulating material Rear ight mm rot Botiom ient jme et right jas Rum Fig 10 3 7 Drain hose And lee o c 2 Changing V Die cutting c gt c am How to attach the drain cap 1 Insert hexagonal wrench 4 mm 4 mm Fig 10 3 10 2 Firmly insert drain cap No gap AN Do not apply lubricating oil refrigerant machine oil If applied deterioration and drain leakage of the drain lug may occur wrench 4mm pg may Fig 10 3 11 How to attach the drain hose Always use the original screw that secured the drain hose to the unit If using a different screw may cause water to leak Insert the drain hose firmly until the connector contacts with the insulation then secure it in place using the original screw Securely insert the drain hose and drain cap otherwise water may leak In case of right or left piping After making slits on the front panel with a knife or similar tool cut them out with a pair of nippers or an equivalent tool Fig 10 3 12 when inserting the drain cap FILE NO SVM 10017 In case of bottom r
82. n the set and the room temperature as shown in the following figure Zone s x s DRY max COOL min 6 x 5 COOL min DRY max COOL min 6 x 4 COOL min DRY max COOL min 6 x 3 COOL min DRY max COOL min 6 x 2 COOL min DRY max COOL min 6 x 1 COOL min Cool min 20 EEE lt Heating operation gt 30 minutes Compressor speed OHz B zone to cHz 33 FILE NO SVM 10017 Description lt Cooling operation gt 1 The control target temperature increase 0 5 C per hour up to 2 C starting from the set temperature when has been received 2 The indoor fan speed is controlled between L and UL after setting ECO operation 3 The compressor speed is controlled as shown in the left figure lt Heating operation gt 1 Setting the compressor speed to Max aHz the temperature zone in which the operation can be performed with Max cHz is gradually widened after 30 minutes passed when starting ECO operation 2 The indoor fan speed is controlled within L as maximum speed after setting ECO operation 9 Temporary operation Filter lamp ON Did you press RESET button NO for 3 seconds or more Did you press RESET button Operation flow and applicable data etc Pressing RESET button starts the temporary opera tion of AUTO operation When keeping RESET button pressed for 10 seconds or more the tempo
83. ocessor in the indoor unit should not be too close to r f sources For details see the owner s manual Remote controller Should be placed where there are no obstacles such as curtains that may block the signal Do not install the remote controller in a place exposed to direct sunlight or close to a heating Source such as a stove Keep the remote controller at least 1 m away from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interference The location of the remote controller should be determined as shown below Gide view _ Top view 1 5 Indoor inte 5 lt EN jn u Reception Reception Remote range Co range controller Remote controller Fig 10 3 1 FILE NO SVM 10017 10 3 2 Drilling a Hole and Mounting Instal lation Plate Drilling a hole When install the refrigerant pipes from the rear Fig 10 3 2 1 After determining the pipe hole position on the installation plate gt drill the pipe hole 065 mm at a slight downward slant to the outdoor side NOTE When drilling into a wall that contains a metal lath wire lath or metal plate be sure to use a pipe hole brim ring sold separately Mounting the installation plate Anchor bolt holes
84. of 9 Louver control respectively 3 The outdoor unit controls the outdoor fan motor compressor and 4 way valve according to the operation signal sent from the indoor unit Operation ON Setup of remote controller Y Indoor unit control Control Requierment Indoor fan motor control Louver control Operation Hz sss Sending of operation command signal Outdoor unit control Compressor revolution control Outdoor fan motor control Operation Hz control Include limit control 4 way valve control In cooling operation OFF In heating operation ON 3 AUTO operation Selection of operation mode As shown in the following figure the operation starts by selecting automatically the status of room temperature Ta when starting AUTO operation 1 When reselecting the operation mode the fan speed is controlled by the previous operation mode Ta Cooling operation Monitoring Fan Heating operation 1 Detects the room temperature Ta when the operation started 2 Selects an operation mode from Ta in the left figure 3 Fan operation continues until an operation mode is selected 4 When AUTO operation has started within 2 hours after heating operation stopped and if the room temperature is 20 or more the fan operation is performed with Super Ultra LOW mode for 3 minutes Then select an operation mode
85. ojection adjustment Used when flare is made by using conventional flare tool Vacuum pump adapter Connected to conventional vacuum pump It is necessary to use an adapter to prevent vacuum pump oil from flowing back to the charge hose The charge hose connecting part has two ports one for conventional refrigerant 7 16 UNF 20 threads per inch and one for R410A If the vacuum pump oil mineral mixes with R410A a sludge may occur and damage the equipment Gas leakage detector Exclusive for HFC refrigerant Incidentally the refrigerant cylinder comes with the refrigerant designation R410A and protector coating in the U S s ARI specified rose color ARI color code PMS 507 Also the charge port and packing for refrigerant cylinder require 1 2 UNF 20 threads per inch corresponding to the charge hose s port size 10 3 10 3 1 place which provides enough spaces around the indoor unit as shown in the diagram A place where there are no obstacle near the air inlet and outlet A place which allows easy installation of the piping to the outdoor unit A place which allows the front panel to be opened The indoor unit shall be installed so that the top of the indoor unit is positioned at least 2m in height Also avoid putting anything on the top of the indoor unit Indoor Unit Installation Place Direct sunlight on the indoor unit wireless receiver should be avoided The micropr
86. once flashing stops Flashes also in power failure Compressor may not operate even if the room temperature is within range of compressor ON The compressor does not operate while compressor restart delay timer 3 minutes timer operates The same phenomenon is found after power source has been turned on because 3 minutes timer operates In Dry and ECO mode FAN air flow display does not change even though FAN air flow select button is operated The air flow indication is fixed to AUTO Increasing of compressor motor speed stops approx 30 seconds after operation started and then compressor motor speed increases again approx 30 seconds For smooth operation of the compressor the compressor motor speed is restricted to Max 41 rps for 2 minutes and Max 91 rps for 2 minutes to 3 minutes respectively after the operation has started The set value of the remote control should be below the room temperature If the set value is above the room temperature Cooling operation is not performed And check whether battery of the remote control is consumed or not In AUTO mode the operation mode is changed After selecting Cool or Heat mode select an operation mode again if the compressor keeps stop status for 15 minutes In HEAT mode the compressor motor speed does not increase up to the maximum speed or decreases before the temperature arrives at the set temperature The compress
87. or conventional R22 Incidentally when the torque is weak the gas leakage may occur When it is strong the flare nut may crack and may be made non removable When choosing the tighten ing torque comply with values designated by manufacturers Table 3 2 7 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by the manufacturer If any other oil is used the lubricating oils may deteriorate and cause the compressor to burn out Table 3 2 7 Tightening torque of flare for R410A Reference values Nominal Outer diameter Tightening torque ee Mcd t diameter mm kgf cm wrenches available on the marke 14to 18 140 to 180 16 160 18 180 33 to 42 330 to 420 42 420 50 to 62 500 to 620 55 550 63 to 77 630 to 770 65 650 FILE NO SVM 10017 3 3 Tools 3 3 1 Required Tools The service port diameter of packed valve of the outdoor unit in the air water heat pump using R410A is changed to prevent mixing of other refrigerant To reinforce the pressure resisting strength flare processing dimensions and opposite side dimension of flare nut For 12 7 copper pipe of the refrigerant piping are lengthened The used refrigerating oil is changed and mixing of oil may cause a trouble such as generation of sludge clogging of capillary etc Accordingly the tools to be used are classified into the following three types 1 Tools
88. or motor speed may decrease by high temp release control Release protective operation by temp up of the indoor heat exchanger or current release control 11 2 Primary Judgment To diagnose the troubles use the following methods 1 Judgment by flashing LED of indoor unit 2 Self diagnosis by service check remote control 3 Judgment of trouble by every symptom Firstly use the method 1 for diagnosis Then use the method 2 and 3 to diagnose the details of troubles 58 FILE NO SVM 10017 11 3 Judgment by Flashing LED of Indoor Unit While the indoor unit monitors the operation status of the air conditioner if the protective circuit operates the contents of self diagnosis are displayed with block on the indoor unit indication section Table 11 3 1 Block display Description for self diagnosis OPERATION Green Flashing display 1 Hz Power failure when power is ON Indoor indication lamp flashes OPERATION Green Flashing display 5 Hz Protective circuit operation for indoor P C board Which lamp does flash OPERATION Green TIMER Yellow Flashing display 5 Hz Protective circuit operation for connecting cable and serial signal system OPERATION Green Flashing display 5 Hz Protective circuit operation for outdoor P C board OPERATION Green TIMER Yellow Flashing display 5 Hz Protective circuit operation for others inc
89. piping materials with high pressure fittings made for R410A only so that water and or dust does not enter Moreover do not use the existing piping because there are some problems with pressure fittings and possible impurities in existing piping TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY This appliance must be connected to the main power supply by a circuit breaker or a switch with a contact separation of at least 3 mm ASK AN AUTHORIZED DEALER OR QUALIFIED INSTALLATION PROFESSIONAL TO IN STALL MAINTAIN THE AIR CONDITIONER INAPPROPRIATE SERVICING MAY RESULT IN WATER LEAKAGE ELECTRIC SHOCK OR FIRE TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK MAKE SURE ALL POWER SWITCHES ARE OFF FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK DANGER HIGH VOLTAGE The high voltage circuit is incorporated Be careful to do the check service as the electric shock may be caused in case of touching parts on the P C board by hand CORRECTLY CONNECT THE CONNECTING CABLE IF THE CONNECTING CABLE IS INCOR RECTLY CONNECTED ELECTRIC PARTS MAY BE DAMAGED CHECK THAT THE EARTH WIRE IS NOT BROKEN OR DISCONNECTED BEFORE SERVICE AND INSTALLATION FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK FILE NO SVM 10017 DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION TO PREVENT THE INDOOR UNIT FROM OVERHEATING AND CAU
90. pplicable data etc lt ln cooling dry operation gt Prevent freezing control for indoor heat exchanger In cooling dry operation the sensor of indoor heat exchanger detects evaporation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value Usual cooling capacity control When the value is in Q zone the compressor speed is kept Reduction of compressor speed FILE NO SVM 10017 Description 1 When temperature of the indoor heat exchanger drops below 5 C the compressor speed is reduced P zone 2 When temperature of the indoor heat exchanger rises in the range from 6 C to under 7 C the compressor speed is kept Q zone 3 When temperature of the indoor heat exchanger rises to 7 C or higher the capacity control operation returns to the usual control in cooling operation R zone lt heating operation gt Prevent overpressure control for refrigerating cycle In heating operation the sensor of indoor heat ex changer detects condensation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value Reduction of compressor speed When the value is in Q zone the compressor speed is kept Usual heating capacity control 1 When temperature of the indoor heat exchanger rises in the range from 50 C to 55 C the compressor speed is kept Q zon
91. r general public use Power supply cord of outdoor unit shall be more than 1 5 mm H07RN F 602451 66 polychloroprene sheathed flexible cord Read this SAFETY PRECAUTIONS carefully before servicing The precautions described below include the important items regarding safety Observe them without fail After the servicing work perform a trial operation to check for any problem Turn off the main power supply switch or breaker before the unit maintenance New Refrigerant Air Conditioner Installation THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT R410A WHICH DOES NOT DESTROY OZONE LAYER R410A refrigerant is apt to be affected by impurities such as water oxidizing membrane and oils because the working pressure of R410A refrigerant is approx 1 6 times of refrigerant R22 Accompanied with the adoption of the new refrigerant the refrigeration machine oil has also been changed Therefore during installation work be sure that water dust former refrigerant or refrigeration machine oil does not enter into the new type refrigerant R410A air conditioner circuit To prevent mixing of refrigerant or refrigerating machine oil the sizes of connecting sections of charging port on main unit and installation tools are different from those used for the conventional refrigerant units Accordingly special tools are required for the new refrigerant R410A units For connecting pipes use new and clean
92. rary COOL operation is performed NO YES Press RESET button Temporary AUTO operation YES YES for 10 seconds or more Switch to AUTO RESTART control NO Temporary COOL Operation FILE NO SVM 10017 Description 1 When pressing RESET button the temporary AUTO operation starts 2 When keeping RESET button pressed for 3 seconds or more Pi Pi Pi sound is heard and AUTO RESTART control is changed 3 When keeping RESET button pressed for 10 seconds or more Pi sound is heard and the temporary COOL operation starts 4 If the filter lamp goes on press RESET button to go off the filter lamp and then press RESET button again 5 To stop the temporary operation press the button again 10 Discharge temperature control Td value Control operation Judges as an error and stops the compressor Reduce the compressor speed Reduce slowly compressor speed Keeps the compressor speed If the operation is performed with lower speed than one commanded by the serial signal speed is slowly raised up to the commanded speed Operates with speed commanded by the serial signal Purpose This function detects error on the refrigerating cycle or error on the com pressor and performs protective control Operation Control of the compressor speed The speed control is performed as described in the left table based upon the discharge tempe
93. rature FILE NO SVM 10017 tem Operation flow and applicable data etc Description 11 Self Cleaning 1 Purpose function The Self Cleaning operation is to minimize the growth of mold bacteria etc by running the fan and drying so as to keep the Unit now performing cooling or dry operation inside of the air conditioner clean Self Cleaning operation When the cooling or dry operation shuts down the unit automatically starts the Self Press STOP button Cleaning operation which is then performed for the specified period based on duration of the operation which was performed prior to the shutdown after which the Only timer indicator lights and Self Cleaning operation starts Self Cleaning operation stops The Self Cleaning operation is not performed after a heating operation Operation Time set now elapses 1 When the stop signal from the remote controller or timer off function is received only the timer indicator light 2 The period of the Self Cleaning operation operation performed prior to the reception of the stop code 3 After the Self Cleaning operation has been performed for the specified period the unit stops operating During Self Cleaning operations The louver opens slightly The indoor fan operates continuously at a speed of 500 rpm Self Cleaning operation times Operation time Self Cleaning operation time No Self Cleaning operation performed 0 minutes Up to 10 minutes
94. red Under another polarity the surface o pointer should return Heat sink IGBT side C12 C13 C14 500uF 400V Converter module 1 Turn OFF the power supply breaker 2 Discharge all three capacitors completely 3 Check that the normal rectification characteristics are shown in continuity test by the tester DB01 Diode check Resistance value in good product Tester rod ei o or more 00 in trouble i e FILE NO SVM 10017 11 7 How to setting the CLEAN OPERATION cancel 1 Add J201 of indoor PC board assembly If AUTO RESTART set before will automatic cancel when J201 2 Turn ON breaker then hold down the RESET button on the indoor unit for 3 seconds but not more than 10 seconds The indoor unit s buzzer will emits 3 beeps 3 To operate a cooling mode for 20 minutes then turn off by remote control to ensure that Clean operation is cancelled Remark If Auto restart still require take off J201 when finish a Clean operation cancelling procedure 72 12 1 Indoor Unit Part name Front panel 12 PART REPLACEMENT Procedures How to remove the front panel 1 Stop the operation of the air conditioner and turn off its main power supply 2 Pull the air inlet grille toward you to open it and remove the air inlet grille Then remove the 2 screw
95. s RESET button once more or use the remote controller to turn it off Press RESET button for more than The unit is in operation The green indicator is on three seconds Less than 10 seconds The unit stops operating The green indicator is turned off After approx three seconds The unit beeps three times The green indicator flashes for 5 seconds If the unit is required to operate at this time press RESET button once more or use the remote controller to turn it on RESET button While the filter check indicator is on the RESET button has the function of filter reset betton FILE NO SVM 10017 9 3 2 How to Cancel the Auto Restart Function To cancel auto restart function proceed as follows Repeat the setting procedure the unit receives the signal and beeps three times The unit will be required to be turned on with the remote controller after the main power supply is turned off When the system is on stand by not operating Operation Motions Press RESET button for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The green indicator is on L After approx three seconds The unit beeps three times and con
96. s P C board compressor thermo when signal is 3 Check 3 15A of inverter Gas shortage reset P C board Gas leak 2 To display Other block during operation check compressor thermo operation and supply gas check gas leak also 3 Unit operates normally during check If Return serial signal does not stop between 2 and 3 of the indoor terminal block replace inverter P C board If signal stops between indoor terminal block 2 and 3 replace indoor P C board 711 Operation command signal Operation Flashes when If return serial signal does not stop is not sent to outdoor side continues trouble is between indoor terminal block detected on and 3 replace inverter P C board operation If signal stops between indoor command signal terminal block 2 and 3 replace and normal status indoor P C board when signal is reset 61 FILE NO SVM 10017 Block distinction Operation of diagnosis function Judgment and action Check Block Cause of operation Air conditioner Remarks code status 7 Inverter over current All off Displayed when Even if trying operation again all JI protective circuit operates error is detected operations stop immediately board Short time Replace P C board Position detect circuit error All off Displayed when 1 Even if connecting lead wire of or short circuit betwee
97. s fixing the front panel 3 First open the horizontal louver and then remove the front panel from the back body by pulling it toward you How to mount the front panel Push the front panel back in and make sure all hooks are locked FILE NO SVM 10017 Remarks lo Y C TY w aceti 2 2 Screws Electrical part How to remove the electrical part 1 Remove the front panel with procedure 1 2 Remove the screw holding the electrical part cover 3 Disconnect the 3 connectors 2 3P for the fan motor and the connector 5P for the louver motor from the P C board assembly 4 Pull out the TC sensor from the sensor holder 5 Remove the screw for the ground connection remove the screw for the electrical part box Then remove the LED and the electrical part box from the main unit How to mount the electrical part 1 To put back the electrical part box lock it to the upper hook of the back body 2 Tighten the screws on the electrical part box 3 Connect the 3 connectors and arrange the wiring same as original condition and then tighten the screw from the LED unit to the back body 4 Attach the TC sensor to the holder 5 Tighten the screw for the ground connection 6 Tighten the screw on the electrical part cover 3 Connectors Horizontal louver 1 Remove the front panel and the electrical part following procedure 2 2 Remove the center shaft of the horizontal lou
98. s turned on or power cord is plugged in the wall outlet 27 Check for the voltage between 2 is 220 to 240VAC Check for the voltage between 2 and 3 is 15 to 60VDC Br Tuse Check Varistor if the fuse is open 2 Check for the voltage between 2 and 3 terminal of CN20 16 FILE NO SVM 10017 4 Gay S IHAA zd wed Scd Pind uM 2020 vozo NO E ol 1020 gozo T T 6124 gt zeus pore 6008 OOIN Od Aejay i ES m 144 814 6ld 914 vig ELD ZLO OWAOSPNS IHM 18 N3O 4 4 ZH09 A0ZZ ZHOS AOrc 0zc Wd YOLOW 2 gt 4 HUN 100pino 17 FILE NO SVM 10017 6 SPECIFICATION OF ELECTRICAL PARTS 6 1 Indoor Unit Parts name Fan motor for indoor AFN 220 20 4D Specifications AC Motor with 145 C thermo fuse Thermo sensor TA sensor 10 25 C Switching transformer T01
99. section together with the general cautions included in this manual perform the correct and safe work 3 1 Safety During Installation Servicing As R410A s pressure is about 1 6 times higher than that of R22 improper installation servicing may cause a serious trouble By using tools and materi als exclusive for R410A it is necessary to carry out installation servicing safely while taking the following precautions into consideration 1 Never use refrigerant other than R410A in an air conditioner which is designed to operate with R410A If other refrigerant than R410A is mixed pressure in the refrigeration cycle becomes abnormally high and it may cause personal injury etc by a rupture 2 Confirm the used refrigerant name and use tools and materials exclusive for the refrigerant R410A The refrigerant name R410A is indicated on the visible place of the outdoor unit of the air condi tioner using R410A as refrigerant To prevent mischarging the diameter of the service port differs from that of R22 3 refrigeration gas leakage occurs during installation servicing be sure to ventilate fully If the refrigerant gas comes into contact with fire a poisonous gas may occur 4 When installing or removing an air conditioner do not allow air or moisture to remain in the refrig eration cycle Otherwise pressure in the refrig eration cycle may become abnormally high so that a rupture or personal injury may be caused
100. t freezing control etc Louver motor control Indoor fan motor operation control LED Light Emitting Diode display control Transferring of operation command signal Serial signal to the outdoor unit Reception of information of operation status Serial signal including outside temp data to the outdoor unit and judgment display of error Air purifier operation control 2 Role of outdoor unit controller Receiving the operation command signal Serial signal from the indoor unit controller the outdoor unit performs its role Detection of inverter input current and current release operation Over current detection and prevention operation to IGBT module Compressor stop function Compressor and outdoor fan stop function when serial signal is off when the serial signal does not reach the board assembly of outdoor control by trouble of the signal system Transferring of operation information Serial signal from outdoor unit controller to indoor unit controller Detection of outdoor temperature and operation revolution control Defrost control in heating operation Temp measurement by outdoor heat exchanger and control for 4 way valve and outdoor fan Contents of operation command signal Serial signal from indoor unit controller to outdoor unit controller The following three types of signals are sent from the indoor unit controller Operation mode set on the remote controller Compressor
101. ter diameter of Minimum joint thickness Nominal diameter copper pipe jointed mm mm 3 2 2 Processing of Piping Materials When performing the refrigerant piping installation care should be taken to ensure that water or dust does not enter the pipe interior that no other oil than lubricating oils used in the installed air water heat pump is used and that refrigerant does not leak When using lubricating oils in the piping processing use such lubricating oils whose water content has been removed When stored be sure to seal the container with an airtight cap or any other cover 1 Flare processing procedures and precautions a Cutting the Pipe By means of a pipe cutter slowly cut the pipe so that it is not deformed b Removing Burrs and Chips If the flared section has chips or burrs refrigerant leakage may occur Carefully remove all burrs and clean the cut surface before installation c Insertion of Flare Nut FILE NO SVM 10017 d Flare Processing Make certain that a clamp bar and copper pipe have been cleaned By means of the clamp bar perform the flare processing correctly Use either a flare tool for R410A or conven tional flare tool Flare processing dimensions differ according to the type of flare tool When using a con ventional flare tool be sure to secure dimen sion A by using a gauge for size adjustment Fig 3 2 1 Flare processing dimensions Table 3 2 3 Dimensions rel
102. tinues to operate If the unit is not required to operate at this time press RESET button once use the remote controller turn it off RESET button When the system is operating Press RESET button for more than The unit is in operation The green indicator is on three seconds Less than 10 seconds The unit stops operating The green indicator is turned off After approx three seconds The unit beeps three times If the unit is required to operate at this time press RESET button once more or use the remote controller to turn it on RESET button 9 3 3 Power Failure During Timer Operation When the unit is turned off because of power failure during timer operation the timer operation is can celled In that case set the timer operation again NOTE The Everyday Timer is reset while a command signal can be received from the remote controller even if it stopped due to a power failure 9 4 Remote control 9 4 1 Remote control and its functions FBO 69 63 65 65 6 9 69 3 0 0c qe C Infrared signal emitter Start Stop button Mode select button MODE Temperature button TEMP Fan speed button FAN Swing louver button SWING Set louver button FIX On timer button ON Off timer button OFF Sleep timer button SLEEP Set
103. tion is performed Cooling Heating memory position The angle of the louver is indicated as the louver closes fully is 0 1 Louver position in cooling operation Cooling operation AUTO COOL Initial setting of Cooling storage position Louver Directs downward 48 09 2 Louver position in heating operation Heating operation AUTO HEAT Initial setting of Heating storage position Louver Directs downward 115 7 2 Air direction adjustment Description e The louver position can be arbitrarily set up by pressing FIX button Horizontal Inclined Blowing Inclined Horizontal blowing blowing downward blowing blowing gt s Z A 3 Swing e Swing operation is performed in width 35 with the stop position as the center If the stop position exceeds either upper or lower limit position swing operation is performed in width 35 from the limit which the stop position exceeded e Swing When pressing SWING button during operation the louver starts swinging 8 ECO operation Room temp Set temp Operation flow and applicable data etc When pressing ECO button on the remote controller a Economic operation is performed lt Cooling operation gt This function operates the air conditioner with the difference betwee
104. ture Press the COMFORT SLEEP button to Save energy by changing room temperature h th tina h R t automatically 9938 3 ae is epea The air condition can shut down by itself pressing to select the hours automatically 1hr 3hr 5hr or 9hr Remarks If the COMFORT SLEEP button is pressed again means cancel comfort sleep mode Comfort sleep mode will not operate in dry mode and fan only mode Heating mode e The preset temperature will drop down as show on ECO operation Item No 9 Press the COMFORT SLEEP button to choose the operating hours Repeat pressing to setect thehours ihr 3hr 5hr or 9 hr If the COMFORT SLEEP button is pressed again means cancel comfort sleep mode 14 Hi POWER Hi POWER button on the remote controller Mode is pressed When Hi POWER button is pressed while the indoor unit is in Auto Cooling or Heating operation Hi POWER mark is indicated on the display of the remote controller and the unit operates as follows 1 Automatic operation e The indoor unit operates in according to the current operation Cooling operation The preset temperature drops 1 C The value of the preset temperature on the remote controller does not change The indoor unit s fan speed level increase 1 tap Heating operation The preset temperature increases 2 C The value of the preset temperature on the remote controller does not change The indoor unit s fan speed level increase 1 tap The
105. up button SET Clear button CLR Memory and Preset button PRESET One Touch button ONE TOUCH High power button Hi POWER Economy button ECO Quiet button QUIET Comfort sleep button COMFORT SLEEP Filter reset button FILTER Clock Reset button CLOCk Check button CHK FILE NO SVM 10017 ia TOSHIBA alas one 7 9 4 2 Operation of remote control 1 ONE TOUCH Press the button for fully automated operation that is customised to the typical consumer preferences in your region of the world The coutomised settings control temperature air flow strength air flow direction and other settings to provide you alternate contact with OF THE BUTTON If you prefer other settings you can select from the many other operation functions of your Toshiba unit 2 Press ONE TOUCH Start the operaton AUTOMATIC OPERATION To automatically select cooling heating or fan only operation 1 Press MODE Select A 2 Press MODE Select A COOLING HEATING FAN ONLY OPERATION To automatically select cooling heating or fan only operation 1 Press MODE Select Cool Heat xz or Fan only 2 Press MODE Set the desired temperature Cooling Min 17 C Heating Max 30 C Fan Only No temperature indication 3 Press FAN Select AUTO LOW LOW MED as MED aas HIGH aad FILE NO SVM 10017 4
106. ve use with the air conditioner This product can be connected to the mains Connection to fixed wiring A switch which disconnects all poles and has a contact separation of at least 3 mm must be incorporated C in the fixed wiring E NOTE Connecting cable e Wire type More than HO7RN F or 245 IEC66 1 0 mm or more 55 10 4 5 Gas leak test Check places for indoor unit Flare nut connection Electric parts cover Er UG 2 Check places for outdoor unit Fig 10 4 10 Check the flare nut connections for the gas leak with a gas leak detector or soap water 10 4 7 Test operation To switch the TEST RUN COOL mode press RESET button for 10 sec The beeper will make a short beep RESET button Fig 10 4 13 FILE NO SVM 10017 10 4 8 Auto restart setting This product is designed so that after a power failure it can restart automatically in the same operating mode as before the power failure The product was shipped with Auto Restart function in the off position Turn it on as required lt How to set the auto restart gt 56 Press and hold the RESET button for about 3 seconds After 3 seconds the electronic beeper makes three short beeps to tell you the Auto Restart has been selected To cancel the Auto Restart follow the steps described in the section Auto Restart Function of
107. ver from the back body 3 Remove the left shaft from the back body 4 Remove the horizontal louver from the back body 273 mm Center shaft Part name Heat exchanger Procedures 1 Remove the front panel electrical part and the horizontal louver following procedure 3 2 Remove the pipe holder at the rear side of main unit 3 Remove the 2 screws on the heat exchanger at the base bearing Remove the screw on the heat exchanger at the fixed plate from the back body and then pull out the right hand side until the socket of heat exchanger released from the hook of the band motor L and then pull out the upper side of heat exchanger slowly FILE NO SVM 10017 Remarks Cross flow fan 1 Remove front panel electrical part horizontal louver and the heat exchanger following procedure 2 Remove the 2 screws on the band motor L and remove the 2 screws on the band motor R and then remove the cross flow fan 3 Loosen the set screw of the cross flow fan then separate the fan and the fan motor Notice To assemble cross flow fan and fan motor to the unit please turn the fan motor unit the center of its terminal meets the top position of band motor R Fix the cross flow fan with the set screw at the position where the gap between the back body and the right surface of the cross flow fan is 4 7 mm Set screw Middle of the fan motor terminal Base bearing 1 Remove th

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