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RAS-M10SKV-E RAS-M13SKV-E RAS-M16SKV-E

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1. 3 Swing e Swing operation is performed in width 35 with the stop position as the center e 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 Description e The louver position can be arbitrarily set up by pressing FIX button e Swing When pressing SWING button during operation the louver starts swinging 32 6 ECO Operation flow and applicable data etc When pressing ECO button on the remote controller a operation Economic operation is performed Room temp Set temp Cooling operation This function operates the air conditioner with the difference between the set and the room temperature as shown in the following figure hn Fan speed depend on presetting and can change every speed E 5 o e DRY 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 Compressor speed OHz B zone to cHz C M10SKCV E M16SKV E Mi3skv E 9 33 Description Cooling operation 1 The control target temperature increase 0 5 C per hour up to 2 C starting from the set te
2. ode weende oc duoi ots 39 Auto Restart Furictlon co tedere Le reda 40 9 3 1 How to Set the Auto Restart Function sss 40 9 3 2 How to Cancel the Auto Restart Function 41 9 3 3 Power Failure During Timer Operation 41 Remote Controller and Its Fuctions 42 9 4 1 Parts of Remote Controller 42 9 4 2 Operation of remote control eene 42 9 4 3 Name and Functions of Indications on Remote Controller 45 24 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 A 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
3. Charging cylinder Refrigerant charge 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 Charging cylinder for R410A is being currently developed General tools Conventional tools can be used 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 265 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 3 Insulation resistance tester 4 Electroscope 1 Clamp meter 2 Thermometer 12 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 xm When the compound gauges pointer has indicated 0 1 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 p
4. 4 4 4 Resistance value TA TC TCJ 0 10 20 30 40 50 Temperature C 92 12V 5V TA Room temp sensor 8 SWRT 1 GND TC Heat exchanger temp sensor Heat exchanger temp sensor 11 9 3 Indoor Unit Other Parts Part name Checking procedure Room temp TA sensor Disconnect the connector and measure the resistance value with tester Heat exchanger TC TCJ Normal temp sensor Remote controller Refer to 11 5 1 5 Louver motor Measure the resistance value of each winding coil by using the tester MP24Z3T Under normal temp 25 C Position Resistance value 250 200 Indoor fan motor Refer to 11 5 1 3 and 4 mde 12 HOW REPLACE THE MAIN PARTS WARNING Since high voltages pass through the electrical parts turn off the power without fail before proceeding with the repairs Electric shocks may occur if the power plug is not disconnected After the repairs have been completed after the front panel and cabinet have been installed perform a test run and check for smoking unusual sounds and other abnormalities If this check is omitted a fire and or electric shocks may occur Before proceeding with the test run install the front panel and cabinet Ensure that the following steps are taken when doing repairs on
5. 5 Troubleshooting for remote controller Primary check Check that A or B selected on the main unit is matched with A or B selected on the remote controller The unit does not beep at all Operation lamp on indoor unit is not indicated Push the START STOP button Is transmission NO mark indicated YES Push RESET button on remote controller with tip of pencil Is receiver on indoor unit exposed to direct sunlight Does indoor unit Is there any t thyristor operate when moving fluorescent light remote controller near receiver or nearby y indoor unit Batteries are exhausted Push the START STOP button Is transmission mark indicated YES Does indoor unit beep and operate YES i Does indoor unit start to operate by automatic restart function Does radio sound is affected by remote controller when a signal is transmitted at distance of 5 cm from radio Remote controller is defective P C board is defective Keep indoor unit Avoid direct away from thyristor Replace Replace Normal Replace sunlight fluorescent light P C board batteries operation remote controller NOTE After replacing batteries push the RESET button with a tip of a pencil 66 11 5 2 Wiring Failure Interconnecting
6. Check 4 way valve operation 11 5 Judgment of Trouble by Every Symptom 11 5 1 Indoor Unit Including Remote Controller 1 Power is not turned on Does not operate entirely Primary check 1 Is the supply voltage normal 2 Is the normal voltage provided to the outdoor unit 3 Is the crossover cable connected properly 4 Is the fuse FO1 blown RAS M10 13 Series NO Is OPERATION indicator flashing YES Turn off power supply once and 5 second later turn it on again Does transmission mark on remote controller flash normally and is its signal transmitted properly YES Is it possible to turn on power supply by pushing START STOP button on remote controller Unit operates normally Is fuse FO1 Parts R01 C01 C02 R02 of indoor control C03 D01 D02 D04 board blown T101 are defective NO Is voltage DC12V or 5V indicated on rear of indoor control board normal NO Parts of a power supply circuit defective is defective P C board Operation Check Item Considerable principle cause Measures Item by symptoms NO Remote controller is defective Refer to 5 Troubleshooting for remote controller Be sure to disconnect the motor connector CN31 after shut off the power supply or it will be a cause of damage of the motor 2 Power is not turned on t
7. AX 6 2 LY Indoor unit Auxiliary pipes QUA Connecting cable Fig 10 3 18 Installation plate AX Do not put the Do not put the drain Carefully arrange the pipes so that none of the MUSS 2 ee Men 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 Fig 10 3 21 insulating tape wound on the connecting pipe to avoid double taping at the joint moreover 2 seal the joint with the vinyl tape etc Since condensation can result in machine 3 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 Put water in the drain pan and make sure that the water is being drained outside When connecting extension drain hose insulate the connection part of extension drain hose with shield pipe Shield pi ie Pe 7 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 Drain hose Inside the room N Extension drain hose 2 Swing the indoor unit to right and left to confirm Fig 10 3 22 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 CAUTION Pull the indoor unit toward you to confirm that it is Install
8. e 3 c 3 5 2 foo M a Power factor Cooling Running current Power factor Starting current COP Cooling Heating Indoor Cooling Heating Cooling Heating Indoor unit Unit model RAS M13SKV E RAS M16SKV E Dimension Height 275 mm Width Depth an motor output Air flow rate m3 h Cooling Heating 6 9 TZ g 5 28 aE 3 2 9 o 2 5 sls a Outdoor unit Dimension Height mm Width Depth Net weight Compressor Model an motor output ir flow rate m3 h Cooling Heating Piping Unit model RAS M10SKV E connection Aen it Liquid side Gas side c a o o 9 c 3 per unit igerant 2 lt gt lt lt lt lt 9 519 x g x x z 3 613 3 23 9 5 5 3 3 3 13 2 3 58 190 20 52 19 ke zes 21210 35 9 ges aa E o 5 2 FE 5 3 Wiring connection 3 Wires includes earth nterconnection 4 Wires includes earth Usable temperature range Indoor Cooling Heating 21 32 Accessory Indoor unit Installation plate E 1 2 1 1 2 73 1 x 16L T O Batte 6 4 Screw 6 24 x 25L 5 WD DD 012 5 510 OF PAPE 9 5 55 515 5 2 01000 TY 5 Mole 1 o Q n c 3 Dela 5 D 21021
9. 2 m or more from floor 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 2 Prepare a power source for the exclusive use of the air conditioner 1 Securely fit the installation plate onto the wall by screws with the upper and lower catches that hold the indoor unit facing out 2 To mount the installation plate on a concrete wall NOTE iid ps anchor bolt holes as Wire type More than 1 5 mm HO7RN F or 602451 66 3 Install the installation plate horizontally and level CAUTION 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 CAUTION 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 we breaker or switch must be used Anchor bolt Connection with power supply plug EE Attach power supply plug with power cord and plug it into wall outlet An approved P x Q ea power supply cord and plug must be used V NOTE Perform wiring work being sure the wire
10. 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 Item 5 Louver control 1 Louver position Operation flow and applicable data etc This function controls the air direction of the indoor unit The position is automatically controlled according to the operation mode COOL HEAT The set louver position is stored in memory by the microcomputer and the louver returns to the stored position when the next operation 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 lt A Initial setting of Cooling storage position Louver Directs downward 35 3 2 Louver position in heating operation Heating operation AUTO HEAT Initial setting of Heating storage position Louver Directs downward 80 57 2 Air direction adjustment Horizontal blowing Inclined Blowing Inclined Horizontal blowing downward blowing blowing 24 7 4 Axa
11. following the and positions p ai y 9 Batteries 2 Wireless remote controller 47 10 2 Optional Parts Accessories and Tools 10 2 1 Optional Installation Parts Part Code Parts name Refrigerant piping Indoor unit name Liquid side Outer diameter Gas side Outer diameter RAS M10SKV E M10SKCV E RAS M13SKV E M13SKCV E 6 35 mm 9 52 mm RAS M16SKV E M16SKCV E 6 35 mm 12 7 mm Shield pipe for extension drain hose polyethylene foam 6 mm thick 10 2 2 Accessory and Installation Parts Part No Part name Q ty Part No Part name Q ty Super Oxi Deo filter x 1 Wireless remote control x 1 Ly Super Sterilizer filter x 1 Battery 2 Mounting screw 04 x 25L x 6 Remote control holder x 1 gt Remote control holder mounting screw 3 1 x 16L x 2 This model is not equipped with an extension drain hose 48 Others Owner s manual Installation manual Important information and warning B W strips Energy efficiency labels 10 2 3 Installation Servicing Tools Changes in the product and components In the case of an air conditioner using R410A 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
12. When rotating the cross flow fan by hand at the operation stopNO condition is the rotation signal DC 12V OV detected between Purple lead and Blue lead of the motor connector CN33 1 pulse 1 revolutio Is it possible to change airflow level to HIGH Replace the fan motor Motor circuit D301 IC31 Q301 12V power circuit T101 failure Fan motor operates normally Replace the P C board 62 RAS M16 Series Turn off power supply once and turn it on again Is it possible to detect DC 1V or more between NO Does fan motor YES continue to operate and 3 of motor connector CN31 YES Start to operate indoor unit in cooling operation at airflow level LOW Is it possible to detect NO DC 310 340V between NO ndoor D and 3 of motor connector CN31 erate Motor connection condition Is it possible to detect DC 15V between 4 2 and RA motor connector Change airflow level to HIGH Start to operate the indoor unit in except heating operation At this time is it possible to detect DC 1V 8 between and of motor connector CN31 Is it possible to change airflow level to HIGH YES Is it possible to NO Turn off
13. temperature arrives at the set temperature The compressor motor speed may decrease by high temp release control Release protective operation by temp up of the indoor heat exchanger or current release control 55 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 controller 3 Judgment of trouble by every symptom Firstly use the method 1 for diagnosis Then use the method 2 or 3 to diagnose the details of troubles 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 Indoor indication Flashing display 1 Hz lamp flashes Power failure when power is ON 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 FILTER Orange Protective circuit operation for outdoor P C board Flashing display 5 Hz OPERATION Green TIMER Yellow Protective circuit operation for others FILTER Orange
14. 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 Operation flow and applicable data etc Description 2 Indoor fan In cooling operation motor control This operation controls the fan speed at indoor unit side Symbols The indoor fan cross flow fan is operated by the phase UH Ultra High control induction motor The fan rotates in 5 stages in H High MANUAL mode and in 5 stages in AUTO mode respec M Medium tively Table 1 M Medium L Low L Low L Low COLON UL Ultra Low SUL Super Ultra Low Fan speed setup MANUAL The fan speed broadly varies due to position of the louver etc The described value indicates one AUTO Indication Fan speed under condition of inclining LL We dh ads en setting the fan speed to L L a L M 2 L M M or H on the remote M W9 controller the operation is performed with the constant M H 2 speed shown in Fig 1 WC 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 acc
15. 1 of CNO1 DC 15 60 IC51 and IC52 are defective Shorten the restart delay timer and start unit Check whether or not all indicators OPERATION TIMER FILTER PURE are lit for 3 seconds and they return to normal 3 seconds later The indicators are defective or the housing assembly CN21 is defective Push START STOP 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 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 OP ERATION indicator flashes The temperature of the indoor heat exchanger is extremely low The connection of the heat ex changer 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 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 whether or not the com pressor operates Check whether or not the OP ERATION indicator flashes The temperature of the indoor heat exchanger is extremely high The connection of the heat ex change
16. 2 Specifications 2 1 Combined Outdoor Unit The outdoor units which can be combined with M SKV E series indoor unit are as described below 2 2 1 Heatpump type Outdoor Combined outdoor unit Freon mii Combination available X Combination unavailable 2 2 2 Cooling only type Outdoor Combined outdoor unit Indoor unit model name unit type model name M16SKCV E M13SKCV E M10SKCV E 2 room Multi RAS M14GACV E O O outdoor unit RAS3M23GacCVE O o Combination available X Combination unavailable This service manual describes about M SKV E series indoor units RAS M10SKV E RAS M13SKV E RAS M16SKV E RAS M10SKCV E RAS M13SKCV E and RAS M16SKCV E only For the multi outdoor unit to be combined refer to the service manual Outdoor unit File name Heat Pump Model Cooling only model RAS M14GAV E RAS M14GACV E A05 009 1 RAS M18GAV E RAS M18GACV E TRS mer 2 2 Specifications Unit model Indoor RAS M10SKV E RAS M13SKV E RAS M16SKV E Outdoor Cooling capacit Cooling capacity range Heating capacit Heating capacity range Power suppl 220 240V 1Ph 50Hz 220V 1Ph 60Hz Electric Unit model RAS M10SKV E RAS M16SKV E characteristic Running current 0 21 0 19 0 21 0 19 SE 2 5 a o o RT 328g EIE MEIE 5 5 EIE 3 8 a 2 5 2 o g
17. E De end ERES e aad 25 Tt Operation conhtrol zd iere Ret ge HR t ha e RR 25 2 Operating mode selection when performing 2 room operation 26 3 Cooling Heating operation ricette antares ete ll anak dli ento 26 4 AUTO operation nnen eneen emn enne nenne 27 5 DRY operation cet dr a REI IER Cor star nde rt and 27 2 Indoor fan motor control 28 22 A anges 30 4 Release protective control by temperature of indoor heat exchanger 31 eh drole E 32 1 ON em 32 2 AIC direction adj stMent eoe ott eeen 32 3 OWING a GR dede La 32 6 ECO operation pe 33 Te Temporary Operations rri ha eee echte 34 8 Self Cleaning 35 9 Selt Cleaning function release 36 10 Remote A or B selection ioci titt ett enit espe dette eet 37 11 QUIET mode 38 12 COMFORT SLEEP MOOG teenie had 38 1 3 short Wer tn RR ARR REA REED ERR eed 38 14 One Touch Comfort 39 195 ERR ORA TERME RR eer REA aether t dann arenes 39 TO PIETER Indicator
18. and also controls the compres sor outdoor fan motor 4 way valve and pulse motor valve Remote controller Selection of Control contents of remote controller operation conditions ON OFF Operation select Temperature setup Air direction Swing Air volume select AUTO LOW LOW MED MED HIGH ECO e COMFORT SLEEP ON timer setup e QUIET OFF timer setup PRESET Hi POWER e ONE TOUCH Indoor unit Signal receiving Indoor unit control Command signal generating function of Indoor unit control indoor unit operation Indoor unit control 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 4 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 Pulse motor valve Delay function of compressor reactivation Current release function GTr over current preventive function Defrost operation function 25 Operation flow and applicable data etc 1 Basic operation 2 Operating mode selection when per
19. including compressor Flashing display 5 Hz 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 11 4 Self Diagnosis by Remote Controller Check Code 1 If the lamps are indicated as shown B to E in Table 11 3 1 execute the self diagnosis by the remote controller 2 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 11 4 1 How to Use Remote Controller in Service Mode 7 3 TOSHIBA nin LILI PRESET FAN COMFORT QUIET SLEEP SWING Hi POWER ECO 0000 d Alphanumeric characters are used for the check codes 5 is 5 is 6 His A h is B isC d is D 66617 Press CHECK button with a tip of pencil to set the remote controller to the service mode is indicated on the display of the remote controller Press
20. 11 QUIET mode Operation flow and applicable data etc When the QUIET button is pressed the fan of the indoor unit will be restricted the revolving speed at speed L until the QUIET button is pressed once again cancel Quiet mode Description Quiet mode is the system which control the revolving speed of indoor fan to work constantly at lower than speed L In addition noise level of indoor unit is less than usual Remarks 1 Quiet mode is unable to work in dry mode 2 Quiet mode is appropriate to work with less cooling load and less heating load condition Because of the fan speed L may cause not enough the cooling capacity or heating capacity 12 COMFORT SLEEP Cooling mode e The preset temperature will increase as show on ECO operation Item No 9 Press the COMFORT SLEEP button to choose the operating hours Repeat pressing to select the hours 1hr 3hr 5hr or 9hr If the COMFORT SLEEP button is pressed again means cancel comfort sleep 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 1hr 3hr 5hr or 9 hr If the COMFORT SLEEP button is pressed again means cancel comfort sleep mode The principles of comfort sleep mode are e Quietness for more comfortable When room temperature reach setting temperature Save energy by changing room tem
21. 3X3 5 2 d OE re GO CN31 Fan Motor LD Por WHI Heat Exchanger Sensor CN63 anr TCJ VEL L gt ay 4YEL gt X1 7 ala Co aa ELP Ya Iz j KIAS VEL gt NS 5 Heat Exchanger Sensor BLY N32 Louver Motor ax pe Thermo Sensor CN61 WHI TA WHI 7 BLU DC12VO a 2 5 5 Color indication S BRW BROWN gu i YEL YELLOW m BLK BLACK 29 2 RED RED i ns a BLU BLUE WHI WHITE GRN amp VEL GREEN amp YELLOW Main P C Board MCC 504 CMO SONS 222 18 6 SPECIFICATIONS OF ELECTRICAL PARTS Indoor Unit M10SKV E M13SKV E M10SKCV E M13SKCV E Fan motor AFS 220 20 4AR 240 20W for indoor Room temp sensor TA sensor Output Rated 1W 16 poles DC12V 19 7 REFRIGERANT CYCLE DIAGRAM INDOOR UNIT Temp measurement Indoor heat exchanger TCJ i m o Cross flow fan TA 5 un z 2718 Min Pressure measurement Deoxidized copper pipe a Chargeless 1 Gauge attaching port Outer dia 6 35mm Sog Charge 1 Vacuum pump connecting port Thickness 0 8mm 89 5 lt 5 5 Deoxidized copper pipe See onal shape lt of heat insulator Outer dia 9 52mm Thickness 0
22. 6 Take off three hooks of panel from rear side How to assemble the front panel Remarks 2 Screws Three hooks 1 Press three center positions and two lower center positions of the air outlet and then hang the hanging hooks 3 pcs at the top side of the front panel to the rear plate 2 Tighten two screws Incomplete hanging or incomplete pressing may cause a dewdrops or generation of a fluttering sound 75 Part name Electric parts box assembly Procedures 1 Follow the procedure up to 3 in 2 above 2 Remove screw of earth lead attached to the end plate of the evaporator 3 Remove the lead wire cover and remove connector for the fan motor and connec tor for the louver motor from the electric parts box assembly 4 Pull out TC sensor from sensor holder of the evaporator 5 Pull out TCJ sensor from sensor holder of the evaporator 6 Disengage the display unit by simply pushing at the top of the display unit 7 Remove the fixing screw that secures the electric parts box assembly and remove the assembly How to assemble the electric parts box 1 Hook the top part of the electric parts box assembly onto the claws on the back body and secure it using the fixing screw Now attach the display unit Connect the connectors for the fan motor and louver motor 2 Secure the grounding wire using the fixing screw Insert the TC sensor into the sensor holder Be ab
23. 9 52mm Flare 6 35mm For 16 series Flare 12 7mm 84 5 621 84 5 63 26 235 235 215 Remote controller holder Minimum distance me uoc Minimum A EN CC MEN NM TU sare P ofo distance to wall 8 170 or more 160 5 Center line Installation plate outline 5 WIRING DIAGRAM 5 1 RAS M10SKV E RAS M13SKV E RAS M10SKCV E RAS M13SKCV E Outdoor Terminal Block 123 Indoor Terminal Block Heat Exch POWER SUPPLY 72 From outdoor Unit 10 220 240V 50Hz 10 220V 60Hz SHEET METAL Heat Exchanger Sensor TC Varistor Filter Thermo Sensor CN61 TA j 5 As lt rQ P amp DE 153 3 Color indication o9 OEM BRW BROWN 282 9 YEL YELLOW p BLK BLACK z Lex a RED RED 13 13 13 13 BLU BLUE WHI WHITE NI GRN amp YEL Main P C Board MCC 5046 GREEN amp YELLOW 17 5 2 RAS M16SKV E RAS M16SKCV E Outdoor Terminal Block 2 Indoor Terminal Block 12 3 C Heat E POWER SUPPLY From outdoor Unit co c 19 220 240V 50Hz 10 220V 60Hz SHEET METAL x ea 2 3X X1 gt 1 o ws 2 iN O
24. M13SKCV E RAS M16SKCV E connection 29 52 it Liquid side Gas side O c a o o 9 c lt 3 3 2 D E 5 2 3 333 3 3 3 Slee SEI 3 3 3 ZIP o 3 s 9S 5 231 pe z o S 55 3 2 19 im o 3 nterconnection Indoor Cooling Heating ing Heating Accessory Indoor unit Installation plate i Batte ing screw nstallation manual 1 Refer to the service manual of the multi outdoor unit to be combined 5 op ep 5 510 512 9191213666 5 215 5 S 5 o Q gixiolo c 3 2 ola 5 D 5 5 Nlo Sle 3 c ole D MISSE NE 2101010 5 15155 50 015 2 5 Note The specifications may be subject to change without notice for purpose of improvement 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 careful that water dust and existing refrigerant or refrigerat ing oil are not entered in the refrigerant cycle
25. 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 WARNING 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 When wiring use the sp
26. ONA 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 di gt ee 8 11 The TIMER indicator of the indoor unit flashes continuously b times per 1 sec Check the unit with all 52 check codes to 33 as shown in Table 11 4 1 Press ONY or OFFY 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 alohanumeric will be indicated on the display All indicators on the indoor unit will flash b times per 1 sec Press CLR button After service finish for clear service code in memory is indicated on the display of the remote control Press START STOP button to release the service mode e The display of the remote controller returns to as it was before service mode was engaged Fig 11 4 1 57 11 4 2 Caution at Servicing 1 2 After servicing press the START STOP button to return to the normal mode 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 the fixed memory Aft
27. Press Press Set the timer 3 Press Cancel the timer Press Everyday timer allows the user to set both the amp OFF timers and will be activated a daily basis Setting Everyday Timer Set the ON timer 1 Press Press 2 Press OFF Set the OFF timer Press o button during the f or mark flashing During the every day timer is activation both arrows t or are indicated Note 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 43 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 s
28. Remove the front panel Remove 2 screws 2 Remove the cover of the fan motor lead wires 3 Check DC voltage with CN31 connector while the fan motor is rotating NOTE Do not disconnect the connector while the fan motor is rotating Usea thin test rod Indoor fan starts rotating when power supply is turned on Check output DC voltage of fan motor on P C board P C board Measure voltage between 3 GND BLACK and 5 V line YELLOW of motor connector CN31 while indoor fan motor is rotating DC 1 0V or more Under DC 1 0V P C board is defective Motor is defective Replace P C board Replace motor 64 For AC fan motor in RAS M10 13SKV E RAS M10 13SKCV E Inspection procedure gt 1 Remove the front panel Remove 2 screws 2 Remove the cover of the fan motor lead wires 3 Check AC voltage with CN31 connector while the fan motor is rotating NOTE Using a tester measure the resistance value of each winding coil Useathin test rod AFS 220 20 4AR Do not disconnect the connector while the fan motor is rotating For P C board side proceed to the item Only indoor fan does not oper ate of Judgment of Trouble by Every Symptom ray BLU CN33 PUR P C board Position board Resistance value Between Black Red Between Black White Between Red White 174 850
29. Set louver button FIX BREE FaN On timer button ON 9 8 Off timer button OFF Sleep timer button SLEEP Setup button SET Clear button CLR Memory and Preset button PRESET One Touch button ONE TOUCH ONE TOUCH 9 MODE COMFORT QUIET SLEEP SWING FIX e ECO High power button Hi POWER 222 Economy button 2006 CHK FILTER CLOCK L OCOS OOOO Quiet button QUIET Comfort sleep button COMFORT SLEEP Filter reset button FILTER Clock Reset button CLOCK W JJ Check button CHK DOOD C OO 26 69 96 O60 C 0 QC 9 4 2 Operation of remote control 1 ONE TOUCH Press the ONE TOUCH 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 ONE TOUCH OF THE BUTTON If you prefer other settings you can select from the many other operation functions of your Toshiba unit Press 6 ONE TOUCH Start the operaton 2 AUTOMATIC OPERATION To automatically select cooling heating or fan only operation 1 Press MODE Select A 2 Press MODE Select A 3 COOLING HEATING FAN ONLY OPERATION To automatically select cooling heating or fan only operation 1 Press MODE Select Cool xx
30. 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 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 exclusive for R410A The following tools for R410A are required Tools whose specifications are changed for R410A and their interchangeability R410A air water heat pump installation Conventional air water heat pump installation Used tool Whether conven tional equipment can be used Existence of new equipment for RA10A Whether new equipment can be used with conventional refrigerant Flare tool Pipe flaring Yes Note 1 Copper pipe gauge for adjusting projection margin Flaring by conventional flare tool Yes Note 1 Note 1 Torque wrench Connection of flare nut Yes For 012 7 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 Yes Note 2 Leakage detector Gas leakage check
31. adjusted by the compressor revolution Remote controller Indoor unit Set temp Ts Room temp Ta Ts Ta 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 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 compressor The contents of control operation are same in cooling operation and heating operation Current About Current release control Please refer to a service manual of connected Multi outdoor unit release control 30 4 Release protective control by tempera ture of indoor heat exchanger Indoor heat exchanger temperature Indoor heat exchanger temperature Opera
32. and Indication 1 Initializing Circuit Indoor Unit Control Unit Functions Cold draft preventing Function 3 minute Delay at Restart for Compressor Ne a Fan Motor Starting Control gt Indoor Fan Motor Control Processing Temperature Processing Timer Serial Signal Communication Clean Function Clock Frequency Oscillator Circuit Power Supply Circuit Converter D C circuit NE Noise Filter From Outdoor Unit 220 240V 50Hz 220V 60Hz REMOTE CONTROLLER N Serial Signal Transmitter Receiver Serial Signal Communication Operation Command and Information Remote Controller Operation START STOP Operation Mode Selection AUTO COOL DRY Fan only Thermo Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting EC Hi POWER COMFORT SLEEP QUIET 22 Louver Motor Indoor Fan Motor Infrared Rays 36 7kHz 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 mounted The DC motor drive circuit is mounted to the indoor unit The compressor and the inverter to control fan motor are mounted to the outdoor unit The entire air conditioner is mainl
33. and Serial Signal Wire 1 Outdoor unit does not operate 1 Is the voltage between and of the indoor terminal block varied Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the follow ing diagram NOTE Measurement should be performed 2 minutes and 30 seconds after starting of the operation Be sure to prepare a diode for judgment Terminal block at indoor side Red O O J 552770 or equivalent or J type S5277G Diode with rated voltage of 400V White 2 or more is acceptable D Terminal block Tester Normal time Voltage swings between DC15 and 60V Inverter Assembly check 11 8 1 Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while after operation started Check procedure 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 Measure gas pressure Thermo operation of compressor Gas shortage Gas leak Pipe clogging 2 If the unit stops once it does not operate until the power will be turned on again To item of Outdoor unit does not operate 3 The outdoor unit stops 10 minutes to 1 hour after operation started and an alarm is displayed Discharge temp error check code 03 1E Sensor temp error check code 02 1C Gas leak P M V is defective Mis
34. 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 related 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 z Table 3 2 6 Flare and flare nut dimensions for R22 Nominal Outer diameter Thickness Dimension mm Flare nut width diameter mm mm B C 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
35. conditioner Table 11 1 1 Operation of air conditioner When power breaker is turned ON the operation indicator Green of the indoor unit flashes Description The OPERATION lamp of the indoor unit flashes when power source is turned on If START STOP button is operated 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 after For smooth operation of the compressor the compres sor motor speed is restricted to Max 41 rps for 2 min utes and Max 91 rps for 2 minutes to 3 minutes respec tively after the operation has started 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 maxi mum speed or decreases before the
36. drain hose firmly until the connector unit figure contacts with the insulation then secure it in place using the original screw To the front flare NS Gas side CAUTION Liquid side Securely insert the drain hose and drain cap otherwise water may leak 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 In case of right or left piping ce After making slits on the front panel with a knife or 77 77775777 77777777777777777777 7 similar tool cut them out with a pair of nippers or equivalent tool Use screwdriver handle etc Fig 10 3 17 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 Fig 10 3 15 pipes and wrap the facing tape around them de CAUTION 10 3 7 Drainage 1 Run the drain hose at a downward sloped angle Bind the auxiliary pipes two and connecting cable with facing tape tightly NOTE In case of leftward piping and rear leftward Hole should be made at a slight downward slant piping bind the auxiliary pipes two only with on the outdoor side facing tape Do not rise the drain hose Do not form the drain hose into the waved shape x 7
37. 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 em Operation flow and applicable data etc Description 8 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 operat
38. 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 CAUTION 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 DANGER 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 N 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 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 CAUSING A FIRE HAZARD PLACE THE UNIT WELL AWAY
39. 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 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 If a 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 remov
40. or not the com pressor operates 2 Check whether or not the OP ERATION indicator flashes The temperature of the indoor heat exchanger is extremely low The connection of the heat ex changer 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 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 whether or not the com pressor operates Check whether or not the OP ERATION indicator flashes The temperature of the indoor heat exchanger is extremely high The connection of the heat ex changer 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 Check it is impossible to detect the voltage AC120V or higher voltage between red and black lead of the motor 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
41. remote controller The motor rotates but vibrates strongly 69 The indoor fan motor is defective Protected operation of P C board The board is defective The connection of the motor connector is loose RAS M16 Series 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 Table 11 9 1 Check points Check whether or not the fuse 01 is blown 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 CN23 220 240 2 Between and of DC 310 340 Between of C10 and output side of IC08 DC 15V 4 Between 12V and GND 5 Between 5V and GND The terminal block or the crossover cable is connected wrongly The capacitor C01 line filter L01 resistor 802 or the diode 1 is defective C11 IC13 and T101 are defective IC11 IC13 and T101 are defective C11 IC13 IC14 and T101 are defective Push START STOP button once to start the unit Do not set the mode to On Timer operation Check power supply voltage 1 Between CN51 and No
42. 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 for 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 Tightening torque of torque wrenches available on the market kgf cm Nominal Outer diameter Tightening torque diameter mm kgf cm 14 to 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 e 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
43. the drain pipe for proper drainage firmly hooked on the installation plate Improper drainage can result in water dripping Hook here inside the room CD Installation pate This air conditioner has been designed to drain water collected from condensation which forms on Push unhook the back of the indoor unit to the drain pan Fig 10 3 19 Therefore do not locate the power cord and other parts at a high place than the drain guide For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing the bottom up at the specified places Wall Drain guide Space for pipes Push Push Fig 10 3 20 Fig 10 3 23 54 11 HOW TO DIAGNOSE THE TROUBLE 11 1 First Confirmation 11 1 1 Confirmation of Power Supply Confirm that the power breaker operates ON normally 11 1 2 Confirmation of Power Voltage Confirm that power voltage is AC 220 230 240 10 If power voltage is not in this range the unit may not operate normally 11 1 3 Operation Which is nota 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 controlling and main taining of air
44. 0 seconds When the system is operating Operation Press RESET button for more than three seconds Less than 10 seconds Motions The unit is on standby The unit starts to operate The green indicator is on After approx three seconds The unit beeps three times and continues to operate If the unit is not required to operate at this time press RESET button once more or use the remote controller to turn it off Motions The unit is in operation The green indicator is on 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 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 41 9 4 Remote control 9 4 1 Remote control and its functions Infrared signal emitter Start Stop button SN Mode select button MODE Temperature button TEMP og Fan speed button FAN BBs Swing louver button SWING GEE
45. 502120 5 Nlo Sle 3 z c 9 6 D 2 mE Q 115 T 01015 5 5 5 Q 4 nstallation manual 4 1 Refer to the service manual of the multi outdoor unit to be combined Note The specifications may be subject to change without notice for purpose of improvement Unit model Indoor RAS M10SKCV E RAS M13SKCV E RAS M16SKCV E Outdoor x1 Cooling capacit 1 1 SE Heating capacit Heating capacity range Power suppl Electric Unit model RAS M10SKCV E RAS M16SKCV E characteristic Running current 0 21 0 19 0 21 0 19 Cooling capacity range 2 NI Or Oo N Power factor Cooling Running current Power factor a 0 U 7 alele 9 2515321515 5 E o olle o 5 9 c 5 3 5 3 E c 5 c 5 31944 3 m cu 5 3 PSP LIS ol ol ll kt A 2 2 2 2 COP Cooling Heating Indoor Unit model Cooling Heating Medium Outdoor Cooling Heating Indoor unit Unit model Dimension Height mm Width Depth an motor output Air flow rate m3 h Cooling Heating RAS M10SKCV E RAS M13SKCV E o I TZ g 5 28 z 2 5 a 5 dz 5 9 o 5 c S sls a Outdoor unit Dimension Height mm Width Depth Compressor Model an motor output ir flow rate m3 h Cooling Heating Piping Unit model RAS M10SKCV E RAS
46. 8mm j 1 Refer to the service manual of multi outdoor unit to be combined 20 8 1 Indoor Unit 8 CONTROL BLOCK DIAGRAM RAS M10SKV E RAS M13SKV E RAS M16SKV E Heat Exchanger Sensor Tcj Heat Exchanger Sensor Tc Room Temperature Sensor Ta Infrared Rays Signal Receiver and Indication Clock Frequency Oscillator Circuit M C U Indoor Unit Control Unit Functions Cold draft preventing Function e 3 minute Delay at Restart for Compressor 17 Motor Starting Control pa Processing Temperature Processing Louver Motor Drive Control Indoor Fan Motor Control Timer Serial Signal Communication Power Supply Circuit Converter D C circuit Noise Filter From Outdoor Unit 220 240V 50Hz 220V 60Hz REMOTE CONTROLLER Clean Function Serial Signal Transmitter Receiver Serial Signal Communication Operation Command and Information Remote Controller Operation START STOP Operation Mode Selection AUTO COOL DRY HEAT Thermo Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting ECO Hi POWER COMFORT SLEEP QUIET Louver Motor E Indoor Fan Motor Infrared Rays 36 7kHz RAS M10SKCV E RAS M13SKCV E RAS M16SKCV E Heat Exchanger Sensor Tcj Heat Exchanger Sensor Tc i Room Temperature Sensor Ta Infrared Rays Signal Receiver
47. FILTER FOR RAS M16SKV E SKCV E 43 80319 AIR FILTER L 43783003 REMOTE CONTROL HOLDER 43T09410 GRILLE OF AIR INLET ORIGINAL WHITE 43T60382 MOTOR CORD 43 62328 TERMINAL COVER 43T82310 INSTALLATION PLATE 43T69616 WIRELESS REMOTE CONTROL 43719333 SENSOR FIX PLATE FOR RAS M10 13 16SKCV E 43T09408 PIPE HOLDER 43T69691 WIRELESS REMOTE CONTROL 43T03360 BACK BODY ASSEMBLY FOR RAS M10 13 16SKV E Indoor Unit 2 Part Description Description 43T69319 TEMPERATURE SENSOR 43T69670 PC BOARD FOR RAS M16SKV E 43T50306 TEMPERATURE SENSOR 43T69671 PC BOARD FOR RAS M16SKCV E 43T60002 TERMINAL BLOCK 3P 43T69672 PC BOARD FOR RAS M10SKV E 43 50318 TEMPERATURE SENSOR 43T69673 PC BOARD FOR RAS M13SKV E 43T62003 CORD CLAMP 43T69674 PC BOARD FOR RAS M10SKCV E 43T69633 PC BOARD ASSY WRS LED 43T69675 PC BOARD FOR RAS M13SKCV E 84 TOSHIBA CARRIER THAILAND CO LTD 144 9 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAM BOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND
48. Heat xx or Fan only 2 Press MODE Set the desired temperature Cooling Min 17 Heating Max 30 Fan Only No temperature indication 3 Press Select AUTO LOW LOW a MED MED aas HIGH aal 42 DRY OPERATION COOLING ONLY For dehumidification a moderate cooling performance is controlled automatically 1 Press MODE Select Dry 2 Press Set desired temperature 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 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 TEMPORARY OPERATION In case of the misplaced or discharged remote control Pressing the RESET button the unit can start or stop without using the remote control Operation mode is set on AUTOMATIC operation preset temperature is 24 C and fan operation is automatic speed TIMER OPERATION Setting the ON Timer Setting the OFF Timer 1 Press x Set the desired ON timer 2 Press Set the timer or Set the desired OFF timer
49. TOSHIBA FILE NO SVM 07034 SERVICE MANUAL AIR CONDITIONER SPLIT TYPE Indoor Unit lt High Wall Heat Pump Type gt RAS M10SKV E RAS M13SKV E RAS M16SKV E lt High Wall Cooling Type gt RAS M10SKCV E RAS M13SKCV E RAS M16SKCV E July 2007 10 11 12 13 CONTENTS 2 4 3 SPECIFICATIONS 2205 tr cv ck TV Ua dada ed cu Dean i reci ru ue 5 REFRIGERANT 52 8 CONSTRUCTION VIEWS no at a naar pa 16 WIRING DIAGRAM foo 2 adoratan aneto uspesni apn isee anssen 17 SPECIFICATIONS OF ELECTRICAL PARTS 19 REFRIGERANT CYCLE DIAGRAM 20 CONTROL BLOCK DIAGRAM 21 OPERATION DESCRIPTION 23 INSTALLATION PROCEDURE eeen eenen ennen nnn 47 HOW TO DIAGNOSE THE TROUBLE 55 HOW TO REPLACE THE MAIN PARTS 74 EXPLODED VIEWS AND PARTS LIST 83 1 SAFETY PRECAUTIONS For general public use Power supply cord of ou
50. UNF 20 threads per inch n 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 RA10A New tools for R410A Applicable to R22 model Changes Gauge manifold 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 projection 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
51. 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 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 14 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 Types of flux Noncorrosive flux Generally it is a compound of borax and boric acid It is effective in case where the b
52. cable data etc 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 Point the remote control at the indoor unit Push and hold CHK e button on the Remote Control by the tip of the pencil 00 will be shown shown on the display 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 not A display 3 Default setting of Remote Control from factory is A Display 00 Display 67 Description 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
53. drain hose is secured in place by a screw Remove the screw securing the drain hose then pull out the drain hose Drain hose Fig 10 3 12 52 How to attach the drain cap In case of bottom right or bottom left piping 1 Insert hexagonal wrench 4 mm 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 16 4 Fig 10 3 13 Left hand connection with piping 2 Firmly insert drain cap 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 AN Z Do not apply lubricating oil be unstable refrigerant machine oil i when inserting the drain cap When bending the connecting pipe make sure to If applied deterioration and use a spring bender to avoid crushing the pipe Insert a hexagon drain leakage of the drain wrench 4mm 9 May occur Refer to the table below for the bending radius of each connection pipe Fig 10 3 14 Outer diameter Bending radius 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 To connect the pipe after installation of the Insert the
54. e 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 seamless 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 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 connectio
55. e sure to disconnect the motor connector CN31 after shut off the power supply or it will be a cause of damage of the motor 2 Power is not turned on though Indoor P C board is replaced Confirmation procedure Turn on power supply Does OPERATION indicator flash NO Is wired correctly to white and black lead wires of terminal block YES To item of Power supply is not turned on mic 3 Only the indoor motor fan does not operate Primary check 1 Is it possible to detect the power supply voltage 220 240 between O on the terminal block 2 Does the indoor fan motor operate in cooling operation In heating operation the indoor fan motor does not operate for approximately 10 minutes after it is turned on to prevent a cold air from blowing in RAS M10 13 Series Turn off power supply once and turn it on again YES Does fan motor continue to operate Control P C board failure Start to operate indoor unit in cooling operation at airflow level LOW Does indoor fan operate YES Dose AC120V or TERR ligher voltage apply to between red and black lead P C board of the motor Change airflow level to HIGH Turn OFF the power Is it possible to rotate cross flow fan by hand properly Replace bearing Turn OFF the power Stop the operation
56. e 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 Side view lopview 4 F Indoor unit 5 7 Cy jn 4 Reception Reception Remote range range controller Remote controller Fig 10 3 1 10 3 2 Drilling a Hole and Mounting Instal lation Plate Drilling a hole When install the refrigerant pipes from the rear 100 mm 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 77 Hook Ne i ad Pipe hole Plate Pipe hole Hook Hook Installation Thr Indo it RE Weight Mounting screw Fig 10 3 3 50
57. ecified 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 CAUTION 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 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 dealer
58. emarks 12 2 Microcomputer Part name Common procedure P C board layout RAS M10 13 Series C01 FUSE LO1 02 RO1 A 25 IVAC T3 15A CN51 Procedure 1 Turn the power supply off to stop the operation of air conditioner 2 Remove the front panel Remove the 2 fixing screws 3 Remove the electrical part base R02 CN31 5046 02 COMPONENT SIDE IC12 C121 01 81 Remarks Replace terminal block microcomputer ass y and the P C board ass y 1CN424 WI4V O 10863 2 1CN62 2 1 CN61 2 C133 RAS M16 Series 82 13 EXPLODED VIEWS AND PARTS LIST 13 1 Indoor Unit 1 Vi Electric Parts Assembly Location Part Location Part Description Description No No No No 43 21397 LOUVER MOTOR 43T39327 BEARING BASE 43 21371 FAN MOTOR 43T39328 MOTOR BAND LEFT FOR RAS M16SKV E SKCV E 43T39329 MOTOR BAND RIGHT 43 21393 FAN MOTOR 43T09409 HORIZONTAL LOUVER FOR RAS M10 13SKV E SKCV E 43T79313 DRAIN CAP 43 22312 MOLD BEARING ASSEMBLY 43144409 REFRIGERANT CYCLE ASSEMBLY 43770313 DRAIN HOSE FOR RAS M10 13SKV E SKCV E 43720325 CROSS FLOW FAN ASSEMBLY 43144410 REFRIGERANT CYCLE ASSEMBLY 43T11301 PIPE SHIELD FOR RAS M16SKV E SKCV E FOR RAS M10 13SKV E SKCV E 43T00488 PANEL SERVICE ASSEMBLY 43 11320 PIPE SHIELD 43T80318 AIR
59. eover control Cool Dry XX Heat 3 Temperature indicator Indicates the temperature setting 17 C to 30 4 FAN speed indicator Indicates the selected fan speed AUTO or five fan speed levels LOW a LOW L MED a MED m HIGH can be shown Indicates AUTO when the operating mode is either AUTO or Dry slol soze o xi EYE HiPOWER 5 and clock time indicator The time setting for timer operation or the clock time is indicated The current time is always indicated except during TIMER operation 6 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 7 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 8 Eco indicator Indicates when the ECO is in activated Press the ECO button to start and press it again to stop operation 9 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 10 Comfort sleep Indicates when comfort sleep is activaled Press comfort sleep button to selectt
60. er 1 1 Quiet Indicates when quiet is activated Press quiet button to start and press it again to stop operation 12 One Touch Indicates when one touch comfort is activated Press one touch button to start the operation 13 Swing Indicates when louver is swing Press swing button to start the swing operation and press it again to stop the swing operation 45 9 5 Intermittent Operation Control for Indoor Fans of the Indoor Unit at Thermo off Side in Heating Operation While heating operation is executed in two rooms if room temperature reached the setup temperature in one room and thermo off occurred the following operations start Refer to the figure belox 1 The indoor unit of the room A room in which thermo off did not occur starts a continuous operation with the setup number of revolution 2 The indoor unit of the room B room in which thermo off occurred starts intermittent operation of the indoor fan The indoor fan operates with number of revolution of UL or SUL Fan ON time is 2 minutes and Fan OFF time is 2 to 4 minutes However if temperature of the indoor heat exchanger becomes over 55 C or more in B room the indoor fan stops the intermittent operation and starts continuous operation While heating operation is executed in two rooms if room temperature reached the setup temperature in both room nad thermo off occurred both indoor units start intermittent operation of the indoor fan A room Thermo ON contin
61. er servicing press CLR button under check mode status and then send the check code 7F to the indoor unit The error code stored in memory is cleared Block distinction Table 11 4 1 Operation of diagnosis function Check Block Indoor P C board etc Cause of operation Short circuit or discon nection of the room temperature sensor TA sensor Air conditioner status Operation continues Remarks Displayed when error is detected Judgment and action Check the room temp sensor When the room temp sensor is normal check P C board Being out of place disconnection short circuit or migration of heat exchanger sensor TC sensor Operation continues Displayed when error is detected Check heat exchanger sensor When heat exchanger sensor is normal check board Lock of indoor fan or trouble on the indoor fan circuit All off Displayed when error is detected Check the motor When the motor is normal check board Not displayed Trouble on other indoor boards Operation continues Displayed when error is detected Replace P C board Connecting cable and serial signal Return serial signal is not sent to indoor side from operation started 1 Defective wiring of connecting cable 2 Operation of compres sor thermo Gas shortage Gas leak Operation continues 58 Flashes when
62. erials for brazing and used 7 Remove the flux completely after brazing 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 Do not enter flux into the refrigeration cycle When chlorine contained in the flux remains within the pipe the lubricating oil deteriorates Therefore use a flux which does not contain chlorine When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water Remove the flux after brazing Nitrogen gas cylinder From Nitrogen cylinder gas Rubber plug Fig 3 5 1 Prevention of oxidation during brazing 15 4 CONSTRUCTION VIEWS RAS M10SKV E RAS M13SKV E RAS M16SKV E RAS M10SKCV E RAS M13SKCV E RAS M16SKCV E 790 205 Air inlet Air filter Front panel CER Knock out system ru Knock out system 19 Wireless remote controller Drain hose 0 50m Installation plate hanger ETT Connecting pipe 0 35m Connecting pipe 0 40m For 10 13 series Flare
63. for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The green indicator is on 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 press RESET button once more or use the remote controller to turn it off When the unit is in operation Operation Motions 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 While the filter check indicator is on the RESET button has the function of filter reset betton zd 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 Press RESET button for more than three seconds Less than 1
64. forming 2 room operation 1 The outdoor unit operation mode conforms to the instructions of the indoor unit that was pressed first 2 When combined operation consisting of cooling dry and heating fan and heating or cleaning operation and heating is performed operation conforms to the instructions of the indoor unit that was pressed first as shown in the following table 3 The indoor fan stops for the indoor unit that was pressed last and which instructions are ignored 4 When three or four indoor units are operated concurrently the priority is also given to operating mode of the indoor unit which was pressed first as same as the case when two indoor units are operated concurrently Indoor unit Set operating mode Actual indoor unit operation Actual outdoor unit operation 4 Pressed first cooling dry Cooling dry Cooling Pressed last Cooling dry Cooling dry Pressed first s Pressed last 2 Pressed frst mm Pressed last 4 Pressed first an Pressed last Cooling dry Cooling dry 5 Pressed first Cooling dry Cooling dry Cooling Pressed last P i i Cooling dry Cooling dry Cooling Pressed last Fan stopped Pressed frst Pressed last Cooling dry Fan stopped Pressed first cleaning Operation Cleaning operation Stopped Pressed last Cleaning operation Cleaning operation Pressed first Cleaning operation Cleaning operation Cooling Pressed last Cooling dry Cooling dry 10 Pressed first Cooli
65. g operation ON Pulse motor valve control 26 1 Basic operation Operation flow and applicable data etc 4 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 Heatpump Monitoring Fan Cooling Only Description 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 C or more the fan operation is performed with Super Ultra LOW mode for 3 minutes Then select an operation mode 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
66. he elapsed time reaches 1000 hours after air purifier operation the FILTER indicator lights After cleaning the filters turn off the FILTER indicator How to Turn Off FILTER Indicator Press RESET button on the indoor unit NOTE If RESET button is pushed while the FILTER indicator is not lit the indoor unit will start the automatic operation When you want a temporary operation while the FILTER lamp lights press RESET button to turn off the FILTER lamp See page 34 39 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
67. hough Indoor P C board is replaced Confirmation procedure Turn on power supply Does OPERATION indicator flash NO Is wired correctly to white and black lead wires of terminal block YES To item of Power supply is not turned on 60 RAS M16 Series Check Item Considerable principle cause Turn off power supply once and 5 second later turn it on again NO Is OPERATION indicator flashing YES Is it possible to turn on power supply by pushing Measures Item by symptoms Does transmission mark on remote controller flash START STOP button normally and is its signal on remote controller transmitted properly YES YES Unit operates normally Is fuse FO1 of indoor control board blown NO Remote controller is defective Refer to 5 Troubleshooting for remote controller f Replace main K P C board Does fan motor connector between CN10 D short circuit Microcomputer is defective Parts R04 R05 DBO1 CO1 YES C03 IC01 and T01 are defective Is voltage DC12V or 5V indicated on rear of indoor control board normal Parts of a power supply circuit defective NO Is DC310 340V supplied between CN10 D 9 Replace fan motor B
68. iguration of refrigerant charging de 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 Accordingly 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 JepuiAo Refrigerant jue1eBujeH 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
69. indoor unit and remove connector from motor Then push START STOP button on remote controller to stop flashing lamp on indoor unit Is it possible to detect DC 15V between 4 3 and 3 of motor connector CN31 Turn off indoor unit and remove connector from motor Then start to operate indoor unit with remote controller Start to operate the indoor unit in except heating operation At this time is it possible to eon V ot OO between an of motor connector 159 Check this condition within 15 seconds after starting unit rotate cross flow fan by hand properly Turn off indoor unit and rotate cross flow fan by hand when the unit is on standby At this time is it possible to NO detect DC 1V or more between 5 and 3 of motor connector CN31 Fan motor operates normally 63 Peplace indoor fan motor Peplace main P C board Peplace bearing 4 Indoor fan motor automatically starts to rotate by turning on power supply For DC fan motor in RAS M16SKV E RAS M16SKCV E Cause The IC is built in the indoor fan motor Therefore the P C board is also mounted to inside of the motor If the P C board is soldered imperfectly or the IC is defective the fan motor may automatically rotate by turning on power supply Inspection procedure 1
70. ing 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 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 suitabl
71. ing instructions or limitations Cord clamp Terminal block Terminal cover L LOS E A Screw Terminal block Fig 10 3 7 Connecting cable Earth line NOTE WIRE TYPE more than 1 0mm H07 RN F or 60245 IEC 66 10 3 5 Piping and Drain Hose Installation Piping and drain hose forming Since condensation results in machine trouble make sure to insulate both the connecting pipes separately Use polyethylene foam as insulating material Rear ight mm Rear left gt Bottom left aA m E Left mp Oom Bottom right jme cc 9 Right mp mm Fig 10 3 10 1 Die cutting front panel slit Cut out the slit on the left or right side of the front panel for the left or right connection and the slit on the bottom left or side of thefront panel for the 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 How to remove the drain cap Clip drain cap with needle nose pliers and pull out H H H H H Fig 10 3 11 How to remove the drain hose The
72. ion 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 Operation control of outdoor fan motor Operations followed to judgment e P M V control of serial signal from indoor side 4 way valve control Heat Pump model only 23 9 2 Operation Description 9 3 9 4 As Basie Operation isst esent TET RE ACER RV URS De plv
73. ion times Operation time Self Cleaning operation time No Self Cleaning operation performed 0 minutes Up to 10 minutes 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 35 8 Self Cleaning Self Cleaning diagram function Operation display ON OFF OFF ON ON rpm is depend on presetting 500RPM FCU louver OPEN OPEN 12 7 CLOSE FCU fan OFF ON ON or OFF depend on presetting of timer function depend on presetting of timer function ON or OFF depend on presetting per room temperature CDU fan ON or OFF OFF depend on presetting per room temperature gt Operation time Cool mode or dry mode Self Cleaning mode operation more than 10 mins operate 30 mins Turn off by remote controller or timer off function 9 Self Cleaning How to cencel Self Cleaning function function release cancel the Self Cleaning function proceed as follows e Press RESET button one time or use rem
74. 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 x 251 Wiring the connecting cable can be carried EN out without removing the front panel TES pate 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 Fig 103 5 3 Insert the connecting cable or as according to local regulations codes into the pipe hole on the wall CANON 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 In case of block brick concrete or similar type 6 Tightening torque 1 2 Nem 0 12 kgf m walls drill 5 mm dia holes in the wall Insert clip anchors for the 2 mounting screws 8 7 Secure the connecting cable with the cord clamp Attach the terminal cover rear plate bushing and NOTE air inlet grille on the indoor unit Install the installation plate using mounting screws between 4 to 6 being sure to secure all four corners ess CAUTION Be sure to refer to the wiring system diagram labeled inside the front panel Check local electrical regulations for any specific wir
75. mperature when ECONO has been received 2 The indoor fan speed is depend on presetting and can change every speed after setting ECO operation 3 The compressor speed is controlled as shown in the left figure Heating operation 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 depend on presetting and can change every speed after setting ECO operation Operation flow and applicable data etc Description Pressing RESET button starts the temporary opera tion of AUTO operation When keeping RESET button pressed for 10 seconds or more the temporary COOL operation is performed 7 Temporary operation Filter lamp ON NO Did you press RESET button for 3 seconds or more YES Did you press RESET button for 10 seconds or more NO Switch to AUTO RESTART control YES Press RESET button Temporary AUTO operation YES Temporary COOL Operation uA 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
76. n operation started but it is not sent from halfway 1 Compressor thermo operation Gas shortage Gas leak 2 Instantaneous power failure Operation continues Flashes when trouble is detected on return serial signal and normal status when signal is reset 1 Repeat Start and Stop with interval of approx 10 to 40 minutes Code is not displayed during operation Supply gas Check also gas leak Unit operates normally during check If return serial signal does not Stop between indoor terminal 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 rotate Current protective circuit does not operate when a specified time passed after compressor had been activated All off Displayed when error is detected Trouble on compressor Trouble on wiring of compressor Missed phase Discharge temp exceeded 117 C All off Displayed when error is detected Check dischage temp sensor TD Gas leakage Trouble on Break down of compressor All off Displayed when error is detected Check power voltage 220 230 240 V 10 Overload operation of refrigera tion cycle Check installation condition Short circuit of outdoor diffuser 4 way valve inverse error TC sensor value lowered during heating operation Operation continues 59
77. ng Bearing base 78 Part name Fan motor Procedures 1 Follow to the procedure till item m 2 Loosen the set screw of the cross flow fan 3 Remove two fixing screws of the motor cover and them remove the motor cover 4 Remove two more fixing screws of the motor band and remove the motor band 5 Pull the fan motor outward Remarks Set screw Motor cover Two screws on motor band Two Screws Part name Cross flow fan Procedures Caution at reassembling 1 To incorporate the fan motor remove the fan motor rubber at shaft core side incorporate the motor into the position in the following figure and then install the fan motor Install the cross flow fan so that the right end of the 1st joint from the right of the cross flow fan is set keeping 70 5 mm from wall of rear plate of the main unit Holding the set screw install the cross flow fan so that U groove of the fan motor comes to the mounting hole of the set screw Perform positioning of the fan motor as follows When assembling the fan motor the fan motor must be installed in such a way that the fan motor leads will be taken out is positioned at the bottom front After assembling the two hooking claws of the motor band right into the main body position the fan motor insert it and then secure the motor band right using the two fixing screws U groove 80 R
78. ng ay Cooling dy Cooling Pressed last Cleaning operation Cleaning operation 44 Pressed first Cleaning operation Cleaning operation Stopped Pressed last Pressed first eme Pressed last Cleaning operation Cleaning operation 13 Pressed first Cleaning op ration Cleaning operation Stopped Pressed last Fan stopped Pressed first m Pressed last Cleaning operation Fan stopped 3 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 from 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 contr land the louver according to the contents of 9 Louver control respectively 3 The outdoor unit controls the outdoor fan motor compressor pulse motor valve and 4 way valve according to the operation signal sent from the indoor unit 1 The power coupler of 4 way valve is usually turned off and it is turned on during defrost operation Only in heating Operation On Setup of remote controller Indoor unit control Indoor fan motor control Louver control Sending of operation command signal 1 Compressor revolution control Outdoor fan motor control 4 way valve control 1 Outdoor unit control In cooling operation OFF In heatin
79. ns 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 outer diameter of Minimum joint thickness Mominardismeter 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 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
80. or is detected Even if trying operation again all operations stop immediately Replace P C board mn mem Being out of place All off disconnection or short circuit of the outdoor heat exchanger sensor TE or suction temp sensor Ts Displayed when error is detected 1 Check sensors TE TS 2 Check board Disconnection or short All off circuit of discharge Displayed when error is detected 1 Check discharge temp sensor TD 2 Check P C board temp sensor N All off Position detect error over current protective operation of outdoor fan drive system fan lock etc Replace P C board or fan motor Outdoor fan drive system error Displayed when error is detected mmo Not displayed Outdoor heat exchanger Operation 1 Check outdoor temp sensor temp sensor error continues TO 2 Check P C board yu um m Outdoor P C board Compressor drive output error Compressor error lock missing etc Break down All off Displayed when error is detected Check 5 serial LED of outdoor unit When 20 seconds passed after start up position detect circuit error occurred Replace compressor Trouble on P M V Others including compressor zel mm Return serial signal has been sent whe
81. ording to the setup tempera ture room temperature and heat exchanger temperature M WB 8 Fan speed L x 3 4 L 4 Fan speed M L x 2 4 L 5 Fan speed M L x 1 4 L Linear approximation from M and L Table 1 Indoor fan air flow rate Fan speed RAS M10SKV E RAS M13SKV E RAS M16SKV E COOL HEAT DRY RAS M10SKCV E RAS M13SKCV E RAS M16SKCV E Fan speed Air flow rate Fan speed Air flow rate Fan speed Air flow rate rpm m3 h rpm m3 h rpm m3 h 28 wem Operation flow and applicable data etc Description 2 Indoor fan In heating operation 1 When setting the fan speed to L motor control L M or 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 MANUAL revolution of the fan motor is controlled to the fan speed level shown in Fig 5 according to the set Indication Fan speed temperature and room temperature L ws 3 Min air flow rate is controlled by temperature of the indoor heat Lr a L M 2 exchanger Tc as shown in Fig 4 M WA 4 Cold draft prevention the fan H 2 speed is controlled by temperature WE of the indoor heat exchanger Tc as shown in Fig 6 5 In order to prevent Cold draft when Min air flow rate control compressor step during heating operation Then lo
82. ort 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 gauge s pointer does not return adapter Set the refrigerant cylinder to the electronic balance Open fully both packed valves at liquid and gas connect 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 Water heat exchanger unit Outdoor unit Refrigerant cylinder with siphon Open close valve for charging T Electronic balance for refrigerant charging Service port Fig 3 4 1 Conf
83. ote control to turn on air conditioner Display will show in green color Hold down the RESET button for more than 20 seconds The air conditioner will stop suddenly when the RESET is pressed but keep holding it continue The will beep 3 times in the first 3 seconds but it is not related to Self Cleaning function After holding about 20 seconds the air conditioner will beep 5 times without any blinking of display e The Self Cleaning Operation had been cancelled Remark Presetting of Self Cleaning function above AUTO RESTART function had been cancelled To set AUTO RESTART again please follow item 9 3 1 How to set Self Cleaning function To set the Self Cleaning function proceed as follows e Press RESET button one time or use remote control to turn on air conditioner Display will show in green color Hold down the RESET button for more than 20 seconds The air conditioner will stop suddenly when the RESET is pressed but keep holding it continue Then will beep 3 times is the first 3 seconds but it is not related to Self Cleaning function After holding about 20 seconds the air conditioner will beep 5 times and OPERATION display blinks 5 times The Self Cleaning function had been set Remark Presetting of Self Cleaning function above AUTO RESTART function had been cancelled To set AUTO RESTART again please follow item 9 3 1 10 Remote A or B selection Operation flow and appli
84. ound 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 12 COMFORT SLEEP OPERATION To save energy while sleeping automatically control air flow and automatically turn OFF Press 8 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 3 5 or 9 hrs for OFF timer operation 4 FAN speed indicator Indicates the selected fan speed AUTO or five fan speed levels LOW a LOW L MED zw MED mum HIGH mm can be shown Indicates AUTO when the operating mode is either AUTO or Dry 44 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 chang
85. perature automatically The air condition can shut down by itself automatically Remarks 1 Comfort sleep mode will not operate in dry mode and fan only mode 13 Short Timer In the normal condition after switching one circuit breaker 3 minute delay time for compressor and 1 hour for plasma air purifier are set for the maintenance of the unit TOSHIBA 38 Purpose To start the unit immediately for the purpose of testing trial etc short timer can be used maintenance of the unit Short Timer Setting Press 0 button to turn the unit OFF Q Setthe operation mode or plasma air purifier on the remote control without sending the signal to the unit Use the tip of the pencil to push the CHK button and hold 00 will show on display them press SET button to make 00 disappear Press 05 button to turn the unit ON When short timer is activated all setting on the remote operates immediately besides all indicatiors on front panel turns ON continuously for 3 seconds 14 One Touch Comfort Operation flow and applicable data etc One touch comfort is the fully automated operation that is set according to the preferable condition in a region Fan Operation AUTO AUTO L Time after operation starts min AUTO L Fan operates depends on the setting temperature and room temperature During the One Touch Comfort mode if the indoor unit receives any signal with o
86. r 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 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 70 The indoor fan motor is defective Protected operation of P C board The board is defective The connection of the motor connector is loose 11 9 2 P C Board Layout RAS M10 13 Series 250 FOL MCC 5046 02 COMPONENT SIDE lt 2 1 Sensor characteristic table 100 Resistance value TA Room temp sensor TC Heat exchanger temp sensor TCJ Heat exchanger temp sensor Temperature C EN RAS M16 Series T3 15A 250V COMPONENT SIDE 1615 8 R103 8 9 EN EE ET T C401 C111 BEALI MCC 5045 01 S amp 2 1 Sensor characteristic table eee
87. razing 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 compound 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 sure 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 4 Piping mat
88. rol 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 2 Role of outdoor unit controller Receiving the operation command signal Serial signal from the indoor unit controller the outdoor unit performs its role Compressor operation control 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 revolution command signal defined by indoor temperature and set temperature Correct
89. solutely sure to loop the grounding wire and TC sensor leads once at the bottom 76 Remarks Electric part box cover TCJ sensor TC sensor Fan motor Earth Screw connector AC fan motor connector For RAS M10 M13 models only Louver motor connecto Fixing screw Part name Procedures Remarks Horizontal louver 1 Remove shaft of the horizontal louver from the back body First remove the left shaft and then remove other shafts while sliding the horizontal louver leftward Evaporator 1 Follow to the procedure in the item k Heat exchanger 2 Remove the pipe holder from the rear side of the main unit 3 Remove two fixing screws at the left side of the end plate of the heat exchanger F 2 27744 4 Remove fixing screw on the heat exchage fixing holder to separate the heat exchage from the back body holder Heat exchanger fixing 1 5 Remove right side of the end plate from two fixing rib while sliding slightly the heat exchanger rightward Rib on the right side of the end plate E Part name Procedures Remarks Bearing 1 Follow to the procedure in the item m 2 Remove the two screws used to secure the bearing base 4 Two screws 3 Remove the bearing base Caution at assembling If the bearing is out from the housing push it into the specified position and then incorporate itin the main body Beari
90. tdoor unit shall be more than 1 5 mm HO7RN F or 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 CAUTION 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 piping materials with high pressure fittings
91. the refrigerating cycle 1 Do not allow any naked flames in the surrounding area If a gas stove or other appliance is being used extinguish the flames before proceeding If the flames are not extinguished they may ignite any oil mixed with the refrigerant gas Do not use welding equipment in an airtight room Carbon monoxide poisoning may result if the room is not properly ventilated Do not bring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspecting the cir cuitry wear rubber gloves to avoid contact with the live parts Electric shocks may be received if the live parts are touched High voltage circuits are contained inside this unit Proceed very carefully when conducting checks since directly touching the parts on the control circuit board may result in electric shocks 12 1 Indoor Unit Part name Procedures Remarks Front panel 1 Stop operation of the air conditioner and turn off its main power supply 2 Open the air inlet grille push the arm toward the outside and remove the grille 3 Press PUSH part under the front panel and remove hooks of the front panel from the installation plate Installation plate Front panel 74 Part name Front panel Procedures 5 Remove the front panel fixing screws 2 pcs
92. ther operation mode the unit will cancel the comfort mode and operates according to the signal received Description Operation condition for model to Europe market When an indoor unit receives One Touch Comfort Signal from the remote controller the indoor unit operates as following 1 Air conditioner starts to operation when the signal is received even if the air conditioner was OFF 2 Operation mode is set according to room temperature the same as AUTO mode 3 Target temperature is 24 C 4 Louver position is set as stored position of the operating mode 5 Fan is controlled as followings 15 Hi POWER Mode Hi POWER button on the remote controller 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 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 Hi POWER mode can not be set in Dry operation 16 FILTER Indicator When t
93. tion flow and applicable data etc In 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 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 or higher the capacity control operation returns to the usual control in cooling operation R zone In 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 aot 1 When temperature of the indoor heat exchanger rises in the range from 50 C to 55 C the compressor speed is kept Q zone
94. trouble is detected on Return serial signal and normal status when signal is reset 1 When the outdoor unit never operate 1 Check connecting cable and correct if defective wiring 2 Check 25A fuse of inverter board 3 Check 3 15A of inverter P C board To display Other block during operation check compressor thermo operation and supply gas check gas leak also Unit operates normally during check If return serial signal does not stop between indoor terminal board 2 and 3 replace inverter P C board If signal stops between indoor terminal board 2 and 3 replace indoor P C board Block distinction Operation of diagnosis function Check code Block board Outdoor P C Air conditioner status All off Cause of operation Inverter over current protective circuit operates Short time Remarks Displayed when error is detected Judgment and action Even if trying operation again all operations stop immediately Replace P C board Position detect circuit All off error or short circuit between windings of compressor Displayed when error is detected 1 Even if connecting lead wire of compressor is removed position detect circuit error occurred Replace P C board Measure resistance between wires of compressor and perform short circuit Replace compressor Current detect circuit All off error Displayed when err
95. ues 0 rpm Indoor fan Operates with setup number of revolution B room thermo OFF B room thermo ON B room thermo ON Operated with setup number of revolution Thermo OFF Thermo ON T off T off T off T onz2 min In case which Tc sensor temperature exceeds 55 C in B room the fan stops intermittent operation and starts continuous operation with UL or SUL 1 46 10 INSTALLATION PROCEDURE 10 1 Installation Diagram of Indoor and Outdoor Units For the rear left and left piping Hook 65 mm or more 1 Installation plate Insert the cushion between the indoor unit and wall and tilt the indoor unit for better operation Do not allow the drain hose to get slack Cut the piping hole sloped slightly Super Oxi Deo filter P Batteries e 8 dps Pan head Remote control holder o Sterilizer filter Wood screw Make sure to run the drain hose sloped downward The auxiliary piping can be connected to the left rear left rear right right bottom right or bottom left i Right Rear LAA 2 Wireless remote control right 1 Bottom Rear right let left Insulate the refrigerant pipes separately with insulation not together 6 mm thick heat resisting polyethylene foam Before installing the wireless remote controller Loading Batteries 1 Remove the battery cover 2 Insert 2 new batteries AAA type
96. uver will move to upper position and fan speed will reduce or off Limited to Min WD tap No limit Fan speed TC 42 a 10 x WD 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 p No limitati hile f d MANUAL mode is in stabilit E o limitation while fan spee mode is in stability koord Ani std A When gt 24 A is 24 and when lt 24 A is 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 minutes or more passed after operation start FAN Manual Room temp lt Set temp 4 C Room temp gt Set temp 3 5 29 Operation flow and applicable data etc 3 Capacity The cooling or heating capacity depending on the load is control adjusted According to difference between the setup value of tempera ture and the room temperature the capacity is
97. 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 49 10 3 Indoor Unit 10 3 1 Installation Place A 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 CAUTION Direct sunlight on the indoor unit wireless receiver should be avoided The microprocessor 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 wher
98. 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 240V 2 Between and of DC 310 340V 3 Between 12V and GND Between 5V and GND The terminal block or the crossover cable is connected wrongly The capacitor C01 line filter 101 resistor R02 or the diode 001 002 003 004 is defective T101 is defective 12 and 101 are defective Push START STOP 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 60 IC51 and IC52 are defective Shorten the restart delay timer and start unit Check whether or not all indicators OPERATION TIMER FILTER PURE are lit for 3 seconds and they return to normal 3 seconds later The indicators are defective or the housing assembly CN21 is defective Push START STOP 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 The unit com pressor operates continuously in the above condition 1 Check whether
99. wiring of connecting wires of indoor outdoor units Clogging of pipe and coming off of TC sensor Refer to the service manual of the outdoor unit 11 9 How to Check Simply the Main Parts 11 9 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 P C board and do not apply force to the parts 3 When connecting or disconnecting the connectors on the P C board hold the whole housing Do not pull at the lead wire 2 Inspection procedures 1 When a P C board is judged to be defective check for disconnection burning or discoloration of the copper foil pattern or this P C board 2 The P C board consists of the following 2 parts a Main P C board part DC power supply circuit 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 below 68 3 Check procedures RAS M10 13 Series 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 Table 11 9 1 Check points Check whether or not the fuse 01 is blown Impulse voltage
100. y 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 motor 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 Prevent freezing control etc Louver motor control Indoor fan motor operation cont

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