Manual Toshiba RAS-10SKV-E2

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  • Toshiba RAS-10SKV-E2 - page 1

    FILE NO. SVM-09043 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE March, 2009 RAS-10SKV-E2 / RAS-10SAV-E2 ...

  • Toshiba RAS-10SKV-E2 - page 2

    CONTENTS 1 . SAFETY PREC A UTIONS .......................................................................... 2 2 . SPECIFIC A TIONS ..................................................................................... 4 3 . REFRIGERANT R410A ............................................................................. 6 4 . CONST R UCTION VIEWS ... ...

  • Toshiba RAS-10SKV-E2 - page 3

    – 2 – 1. SAFETY PRECA UTIONS For general public use P o w er supply cord of outdoor unit shall be more than 1.5 mm 2 (H07RN-F or 60245 IEC66) polychloroprene sheathed fle xib le cord. • Read this “SAFETY PRECA UTIONS” carefully bef ore ser vicing. • The precautions described below include the impor tant items regarding saf ety . Obser v ...

  • Toshiba RAS-10SKV-E2 - page 4

    • DO NO T INST ALL NEAR CONCENTRA TIONS OF COMBUSTIBLE GAS OR GAS V APORS. F AILURE T O FOLLOW THIS INSTR UCTION CAN RESUL T IN FIRE OR EXPLOSION. • T O PREVENT THE INDOOR UNIT FROM O VERHEA TING AND CA USING A FIRE HAZARD , PLA CE THE UNIT WELL A W A Y (MORE THAN 2 M) FROM HEA T SOURCES SUCH AS RADIA T ORS, HEA T REGIST ORS, FURNA CE, ST O VES ...

  • Toshiba RAS-10SKV-E2 - page 5

    – 4 – 2 . SPECIFICA TIONS 2 -1. Specifications Un i t m odel I ndoor R A S - 10SKV - E 2 Ou t door R A S - 10S A V - E 2 Cooli ng capacity (kW ) 2.5 Cooli ng capacity r ange (kW) 1.1 - 3. 0 Heati ng capacity (kW ) 3.2 Heati ng capacity range (kW) 0.9 - 4. 1 Po w er supp l y 1Ph / 50H z / 220 - 240V ,1Ph/60Hz/220V Elect ric Indoor Operati on mod ...

  • Toshiba RAS-10SKV-E2 - page 6

    2 -2. Operation Characteristic Curve – 5 – FILE NO. SVM-09043 <Cooling > <Heati ng> 2 - 3. C a p a city V a ri a ti o n R a tio A cc o r d i n g to Te m p er a t u r e <Cooling > <Heati ng> 0 1 2 3 4 5 6 0 1 02 03 04 05 06 07 08 09 0 1 0 0 1 1 0 1 2 0 Compress or Speed (rps) Current ( A) 0 1 2 3 4 5 6 0 1 02 03 04 05 06 ...

  • Toshiba RAS-10SKV-E2 - page 7

    – 6 – 3. REFRIGERANT R410A This air conditioner adopts the ne w refrigerant HFC (R410A) which does not damage the ozone la yer . The working pressure of the new refrigerant R410A is 1.6 times higher than con ventional refrigerant (R22). The refrigerating oil is also changed in accordance with change of refrigerant, so be careful that water , du ...

  • Toshiba RAS-10SKV-E2 - page 8

    – 7 – T able 3-2-1 Thicknesses of annealed copper pipes Nominal diameter 1/4 3/8 1/2 5/8 Outer diameter (mm) 6.35 9.52 12.70 15.88 Thickness (mm) R410A R22 0.80 0.80 0.80 0.80 0.80 0.80 1.00 1.00 2. Joints F or copper pipes, flare joints or sock et joints are used. Prior to use, be sure to remov e all contaminants. a) Flare Joints Flare joints ...

  • Toshiba RAS-10SKV-E2 - page 9

    – 8 – A ØD d) Flare Processing Make certain that a clamp bar and copper pipe ha ve been cleaned. By means of the clamp bar , perf or m the flare processing correctly . Use either a flare tool f or R410A or con ven- tional flare tool. Flare processing dimensions diff er according to the type of flare tool. When using a con- ventional flare tool ...

  • Toshiba RAS-10SKV-E2 - page 10

    – 9 – 43˚ to 45˚ 45˚ to 46˚ B A C D T able 3-2-6 Flare and flare nut dimensions f or R22 Nominal diameter 1/4 3/8 1/2 5/8 3/4 Outer diameter (mm) 6.35 9.52 12.70 15.88 19.05 Thic kness (mm) 0.8 0.8 0.8 1.0 1.0 Dimension (mm) ABCD 9.0 9.2 6.5 13 13.0 13.5 9.7 20 16.2 16.0 12.9 20 19.7 19.0 16.0 23 23.3 24.0 19.2 34 Flare nut width (mm) 17 22 ...

  • Toshiba RAS-10SKV-E2 - page 11

    – 1 0 – 3-3. T ools 3-3-1. Required T ools The ser vice por t diameter of pac ked v alve of the outdoor unit in the air-w ater heat pump using R410A is changed to pre v ent mixing of other refrigerant. T o reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare nut (F or Ø 12.7 copper pipe) o ...

  • Toshiba RAS-10SKV-E2 - page 12

    – 1 1 – Connect the charge hose to pack ed v alve service por t at the outdoor unit ’ s gas side. Recov er the refrigerant, and check no refrigerant remains in the equipment. (F or refrigerant charging, see the figure below .) Connect the charge hose to the vacuum pump adapter . Open fully both pack ed v alves at liquid and gas sides. Place t ...

  • Toshiba RAS-10SKV-E2 - page 13

    – 1 2 – Gauge manifold [ Cylinder with siphon ] [ Cylinder without siphon ] OUTDOOR unit Gauge manifold OUTDOOR unit Refrigerant cylinder Electronic balance Refrigerant cylinder Electronic balance Siphon 1. Be sure to mak e setting so that liquid can be charged. 2. When using a cylinder equipped with a siphon, liquid can be charged without tur ...

  • Toshiba RAS-10SKV-E2 - page 14

    – 1 3 – Nitrogen gas cylinder Pipe Flow meter M Stop valv e F rom Nitrogen cylinder Nitrogen gas Rubber plug 2. Characteristics required for flux • Activated temper ature of flux coincides with the brazing temperature . • Due to a wide eff ective temperature r ange, flux is hard to carbonize . • It is easy to remov e slag after brazing. ? ...

  • Toshiba RAS-10SKV-E2 - page 15

    – 14 – 4 . CONST R UCTION VIEWS 4 -1. Indoor Unit 38 45 250 235 135 90 40 165 45 135 90 26 290 Knock out system 58 8 52 195 Front panel Knock out system 8 60 Air inlet Air filter Heat exchanger Air outlet 740 250 60 55 50 50 55 60 Hanger Center line Hanger 8~ Hanger Installation plate outline 10) For stud bold ( For stud bold ( 6) 145 145 215 2 ...

  • Toshiba RAS-10SKV-E2 - page 16

    FILE NO. SVM-09043 − 1 5 − 4-2. Outdoor Unit C L C L 280 ...

  • Toshiba RAS-10SKV-E2 - page 17

    – 16 – FILE NO. SVM-0 9043 5 . WIRING DI A GRAM 5 -1. Indoor Unit ...

  • Toshiba RAS-10SKV-E2 - page 18

    FILE NO. SVM-09043 – 17 – 5-2. Outdoor Unit ...

  • Toshiba RAS-10SKV-E2 - page 19

    – 18 – FILE NO. SVM-09043 6 . SPECIFIC A TION OF ELECTRICAL P A R TS 6 -1. Indoor Unit No. P arts name T ype Specifications 1 F an motor ( f or indoor) AFN-220-20-4D AC Motor with 145 °C thermo fuse 2 The r m o . sensor ( T A-sensor ) 10 k Ω at 25 ° C 3 Switching transformer (T01) ST-02 4 Microcontroller unit (IC81) 5 Heat e xchanger sensor ...

  • Toshiba RAS-10SKV-E2 - page 20

    FILE NO. SVM-09043 – 19 – 6-2. Outdoor Unit No . P ar ts name Model name Rating 1 SC coil L01 GET-04051 0.6mH, 15A (Noise filter) L03 GET-04052 10A, 2mH P r ima r y side DC280 V , Seconda r y 2 DC-DC t r ans f o r mer SW T -72 side 7.0 V x 1, 1 2 V x 1, 17V x 2 3 Reactor CH- 69 -Z-T L=1 9 mH, 1 0 A 4 Outside f an motor WLF-240-20A-1 20W 5 G5NB- ...

  • Toshiba RAS-10SKV-E2 - page 21

    7. REFRIGERANT CYCLE DIA GRAM 7-1. Refrigerant Cycle Diagram NO TE : • The maxi m um pipe length of this air conditioner is 10 m . The addition charging of refrigevant is Deo xidized copper pipe Outer dia. : 9.52mm Thickness : 0.8mm NO TE : Gas leak check position Refrigerant flow (Cooling) Refrigerant flow (Heating) INDOOR UNIT T1 TO T emp . mea ...

  • Toshiba RAS-10SKV-E2 - page 22

    FILE NO. SVM-09043 7-2. Operation Data <Coolin g > Tempeature Standard Heat exchanger Indoor Outdoor Compressor condition(°C) pressure pipe temp. fan mode fan mode revolution Indoor Outdoor P (MPa) T1 (°C) T2 (°C) (rps) 27/19 35/- 0.9 to 1.1 9 to 11 47 to 49 High High 54 <Heating> Tempeature Standard Heat exchanger Indoor Outdoor Com ...

  • Toshiba RAS-10SKV-E2 - page 23

    – 22 – FILE NO. SVM-0904 3 REMO TE CONTR OL Remote Control Operation ( ) Operation Mode Selection AUTO, COOL, DRY, FAN ONLY ,HEAT Temperature Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver Auto Swing Louver Direction Setting ECO Hi power Filter Reset Infrared Rays 8 . CONT R OL BLOCK DI A GRAM 8 -1. Indoor Unit • Louver ...

  • Toshiba RAS-10SKV-E2 - page 24

    – 23 – FILE NO. SVM-09043 8 -2. Outdoor Unit (I n ve r ter Assem b l y) For INDOOR UNIT 1 230V 50Hz signal Noise filter Input current sensor Conv er ter (A C DC) P .C .B (MCC 5009) Ov er current sensor Gate drive circuit Rotor position detect circuit Rela y Fa n motor 4wa y V alv e Rela y High pow er factor correction circuit 1. PWM synthesis f ...

  • Toshiba RAS-10SKV-E2 - page 25

    − 24 −  9. OPER A TION DESCRIPTION 9-1. Outline of Air Conditioner Control This air conditioner is a capacity- v a r ia b le type air conditione r , which uses AC motor both the indoor fan motor and the outdoor f an moto r . And the capacity- propor tional control compressor which can change the motor speed in the r ange from 22 to 83 r ps i ...

  • Toshiba RAS-10SKV-E2 - page 26

    – 25 − 9-2. Operation Description 1 . Basic ope r ation ........................................................................................................... 26 1. Ope r ation control ................................................................................................... 26 2 . Cooling/Heating ope r ation ..................... ...

  • Toshiba RAS-10SKV-E2 - page 27

    – 26 – Item 1. Basic ope r ation Operation flow and applicable data, etc. 1. Operation contr ol Description 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 sho wn in the below . 2) A signal is sent by ON b utt ...

  • Toshiba RAS-10SKV-E2 - page 28

     − 27 − Ope r ation ON Setup of remote controller Indoor fan motor control / Louver control / Operation Hz Control (Requierment) Indoor unit control Sending of operation command signal Outdoor unit control [ ] Compressor r evolution control / Outdoor fan motor control / 4- w a y v al v e control In cooling ope r ation: ON In heating oper ati ...

  • Toshiba RAS-10SKV-E2 - page 29

    – 28 – Item 2. Indoor f a n motor control Operation flow and applicable data, etc. <In cooling operation> (This operation controls the f an speed at indoor unit side.) The indoor f an (cross flow f an) is operated by the phase- control induction motor . The f an rotates in 5 stages in MANU AL mode, and in 5 stages in A UT O mode, respec- ...

  • Toshiba RAS-10SKV-E2 - page 30

    – 29 – Item 2. Indoor f a n motor control Operation flow and applicable data, etc. <In heating operation> Description 1) When setting the f an speed to L, L+, M, M+ or H on the remote controller , the operation is per- f or med with the constant speed shown in Fig. 3 and T ab le 1. 2) When setting the f an speed to A UT O on the remote co ...

  • Toshiba RAS-10SKV-E2 - page 31

    – 30 – Item 3. Capacity control Operation flow and applicable data, etc. The cooling or heating capacity depending on the load is adjusted. According to diff erence between the setup value of temper a- ture and the room temperature, the capacity is adjusted b y the compressor re volution. Description 1) The diff erence between set temperature o ...

  • Toshiba RAS-10SKV-E2 - page 32

    – 31 – Item 5. Release protective control by tempera- ture of indoor heat exchanger Operation flow and applicable data, etc. <In cooling/dry operation> (Pre vent-freezing control f or indoor heat exchanger) In cooling/dr y operation, the sensor of indoor heat e xchanger detects e v aporation temperature and controls the compressor speed s ...

  • Toshiba RAS-10SKV-E2 - page 33

    – 32 – Item Operation flow and applicable data, etc. Description 6. Defrost control (Only in heating operation) (This function remov es frost adhered to the outdoor heat e xchanger .) The temperature sensor of the outdoor heat e x- changer (T e sensor) judges the frosting status of the outdoor heat e xchanger and the defrost operation is perf o ...

  • Toshiba RAS-10SKV-E2 - page 34

    Horizontal blowing Inclined blowing Blowing downward Air direction Inclined blowing Horizontal blowing Initial setting of "Cooling storage position" Louver : Directs downward ( 48 ° ) Heating operation/ AUTO (HEAT) Initial setting of “ Heating storage position ” Louver : Directs downward ( 115.7 ˚ ) Item 7. Lou v er control 1) Louve ...

  • Toshiba RAS-10SKV-E2 - page 35

    – 34 – Item 8. EC O ope r ation Operation flow and applicable data, etc. When pressing [ECO] b utton on the remote controlle r , a Economic ope r ation is pe r f o r med . <Cooling operation> This function operates the air conditioner with the diff erence between the set and the room temperature as sho wn in the f ollowing figure . Descri ...

  • Toshiba RAS-10SKV-E2 - page 36

    – 35 – Item 9. Temporary operation Operation flow and applicable data, etc. Pressing [RESET] button starts the temporar y opera- tion of [A UT O] operation. When keeping [RESET] button pressed f or 10 seconds or more, the temporary [COOL] operation is perf or med. Description 1) When pressing [RESET] button, the temporary [A UT O] operation sta ...

  • Toshiba RAS-10SKV-E2 - page 37

    – 36 – Item 11. Self-Cleaning Operation flow and applicable data, etc. 1. Purpose The Self-Cleaning operation is to minimize the growth of mold, bacteria etc. b y running the f an and dr ying so as to keep the inside of the air conditioner clean. Self-Cleaning operation When the cooling or dry operation shuts down, the unit automatically starts ...

  • Toshiba RAS-10SKV-E2 - page 38

    Item 11. Self-Cleaning function Operation flow and applicable data, etc. • Self-Cleaning diagram Description 12. Self-Cleaning function release Operation displa y ON OFF OFF FCU f an ON ON OFF r pm is depend on presetting. (500RPM) FCU lou v er OPEN OPEN (12.7º) CLOSE Timer display ON or OFF ON ON or OFF depend on presetting of timer function. d ...

  • Toshiba RAS-10SKV-E2 - page 39

    Item 13. Romote-A or B selection Operation flow and applicable data, etc. Description 1. Purpose This operation is to operate only one indoor unit using one remote controller . 2. Description When operating one indoor unit in a situation where two indoor units ha ve been installed in the same room or nearby rooms , this operation pre vents the remo ...

  • Toshiba RAS-10SKV-E2 - page 40

    Item Operation flow and applicable data, etc. Description 15. COMFORT The pr i nc i pl e s of comf o r t sleep m o de are: • Quietness for more comfortable. When • Save energy by changing room temperature • The air condition can shut down by itself Remarks: 1. Comfort sleep mode will not operate in dry automatically. mode and fan only mode. a ...

  • Toshiba RAS-10SKV-E2 - page 41

    Item Operation flow and applicable data, etc. Description 17. Hi-POWER ([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- . Mode POWER mark is indicated on the display of the remote controller and the unit operates as follows. 1. Automatic ope ...

  • Toshiba RAS-10SKV-E2 - page 42

    – 41 – Operation Press [RESET] b utton f or more than three seconds. (Less than 10 seconds) Motions The unit is on standb y . ↓ The unit star ts to operate. The green indicator is on. ↓ After appro x. three seconds, The unit beeps three times The green indicator flashes and continues to operate . for 5 seconds. If the unit is not required t ...

  • Toshiba RAS-10SKV-E2 - page 43

    – 42 – Operation Press [RESET] b utton f or more than three seconds. (Less than 10 seconds) Motions The unit is on standb y . ↓ The unit star ts to operate. The green indicator is on. ↓ After appro x. three seconds, The unit beeps three times and continues to operate . If the unit is not required to operate at this time , press [RESET] b ut ...

  • Toshiba RAS-10SKV-E2 - page 44

    1 1 1 1 Infrared signal emitter Start/Stop button Mode select button (MODE) Temperature button (TEMP) Fan speed button (FAN Swing louver button (SWING) Set louver button (FIX) On timer butto n (ON) Off timer button (OFF) Sleep timer button (SLEEP) Setup button (SET) Clear button (CLR) Memory and Preset button (PRESET) One Touch button (ONE-TOUCH) H ...

  • Toshiba RAS-10SKV-E2 - page 45

    – 44 – 4. DRY OPERATION (COOLING ONLY) For dehumidification, a moderate cooling performance is controlled automatically. 1. Press MODE : Select Dry . 2. Press MODE : Set the desired temperature. 5. Hi-POWER OPERATION To automatically control room temperature and airflow for faster cooling or heating Press HI-POWER : Start and stop the operation ...

  • Toshiba RAS-10SKV-E2 - page 46

    − 45 − 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 P displays. 3. Press PRESET : Operate the preset operation. 10. AUTO REST ...

  • Toshiba RAS-10SKV-E2 - page 47

    – 46 – 9- 4 - 3 . Name and Functions of Indications on Remote Cont r oller [Displa y] All indications, e xcept for the cloc k time indicator , are display ed by pressing the button. 1. T ransmission mark This transmission mark indicates when the remote controller transmits signals to the indoor unit. 2. Mode indicator Indicates the current oper ...

  • Toshiba RAS-10SKV-E2 - page 48

    − 47 − FILE NO. SVM-09043 10-1-1. Installation Diagram of Indoor and Outdoor Units Shield pipe A ir f ilt e r Hook Hook ( A t t a c h t o t h e f r o n t p a n e l.) 65 mm or more 1 2 0 m m or m ore 1 Installation plate 120 mm or more 2 Wireless remote 5 Super Oxi 6 Super Sterilizer 3 Batteries 4 Remote contr ol holder 8 Pan head wood screw The ...

  • Toshiba RAS-10SKV-E2 - page 49

    – 48 − FILE NO. SVM-09043 10 -1-2. Optional installation pa r ts <Fixing bolt arrangement of outdoor unit> Fig. 9-1-2  Secure the outdoor unit with the fixing bolts and nuts if the unit is lik ely to be e xposed to a strong wind.  Use  8 mm or  10 mm anchor bolts and nuts . P ar ts name Refrigerant piping Liquid side : ∅ 6.3 ...

  • Toshiba RAS-10SKV-E2 - page 50

    – 49 – FILE NO. SVM-09043 Pa r t No. 1 2 3 P art name (Q ’ ty) Installation plate x 1 Wireless remote control x 1 Battery x 2 P art name (Q ’ ty) Remote control holder x 1 Super Oxi Deo filter x 1 Super Sterilizer filter x 1 Pa r t No. 4 5 6 Pa r t No. 7 8 9 Others Name Owner’ s manual Installation manual P art name (Q ’ ty) Mounting sc ...

  • Toshiba RAS-10SKV-E2 - page 51

    – 50 – FILE NO. SVM-09043 • 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 por t and packing f or refrigerant cylinder” require 1/2 UNF 20 threads per inch corresponding to the ch ...

  • Toshiba RAS-10SKV-E2 - page 52

    – 51 – FILE NO. SVM-09043 10 -2. Indoor Unit 10 -2-1 . Installation place • A place which provides the spaces around the indoor unit as shown in the abov e diagram. • A place where there is no obstacle near the air inlet and outlet. • A place that allows easy installation of the piping to the outdoor unit. • A place which allows the fro ...

  • Toshiba RAS-10SKV-E2 - page 53

    – 52 – FILE NO. SVM-09043 <When the installation plate is directl y mounted on the wall> 1. Securely fit the installation plate onto the wall b y screwing it in the upper and lo wer par ts to hook up the indoor unit. 2. T o mount the installation plate on a concrete wall with anchor bolts, utiliz e the anchor bolt holes as illustrated in ...

  • Toshiba RAS-10SKV-E2 - page 54

    – 53 – FILE NO. SVM-09043 10 -2-4 . Wiring connection <How to connect the connecting cable> Wiring of the connecting cable can be carried out without removing of the fr ont panel. 1. Remov e the air inlet grille. Open the air inlet grille upward and pull it tow ard you. 2. Remov e the ter minal cov er and cord clamp. 3. Inser t the connec ...

  • Toshiba RAS-10SKV-E2 - page 55

    – 54 – FILE NO. SVM-09043 <How to fix the Drains Cap> 1) Inser t hexagonal wrench ( ∅ 4 mm) in a center head. Fig. 10 -2-11 2) Firmly inser t drains cap . Fig. 10 -2-12 CA UTION Fir mly inser t the drain hose and drain cap; otherwise, w ater ma y leak. <In case of right or left piping> • After scribing slits of the front panel w ...

  • Toshiba RAS-10SKV-E2 - page 56

    – 55 – FILE NO. SVM-09043 10 -3-2. Refrigerant piping connection <Flaring> 1. Cut the pipe with a pipe cutter . Fig. 10 -3-2 2. Inser t a flare nut into the pipe, and flare the pipe.  Projection mar gin in flaring : A (Unit : mm) Fig. 10 -3-3 ial (wing nut type) <Tightening connection> Align the centers of the connecting pipes an ...

  • Toshiba RAS-10SKV-E2 - page 57

    – 56 – FILE NO. SVM-09043 10 -3-3. E v acuating After the piping has been connected to the indoor unit, you can perf or m the air purge together at once. AIR PURGE Ev acuate the air in the connecting pipes and in the indoor unit using a vacuum pump . Do not use the refrigerant in the outdoor unit. F or details, see the manual of the v acuum pum ...

  • Toshiba RAS-10SKV-E2 - page 58

    – 57 – FILE NO. SVM-09043 <Stripping length of connection cable> CA UTION • Wrong wir ing connection ma y cause some electrical par ts burn out. • Be sure to comply with local codes on running the wire from indoor unit to outdoor unit (size of wire and wiring method etc). • Every wire must be connected fir mly . • This installatio ...

  • Toshiba RAS-10SKV-E2 - page 59

    – 58 – FILE NO. SVM-09043 10 -3-5. Gas leak test Fig. 10 -3-10 • Check the flare nut connections f or the gas leak with a gas leak detector or soap water . Check places for outdoor unit V alve cover Check places for indoor unit (Flare nut connection) Electric parts cover 10 - 3 - 6 . Indoor unit fixing 1. P ass the pipe through the hole in th ...

  • Toshiba RAS-10SKV-E2 - page 60

    – 59 – FILE NO. SVM-09043 1 1 . H O W T O DI A GNOSE THE T R OUBLE The pulse modulating circuits are mounted to both indoor and outdoor units. Theref ore , diagnose troubles according to the diagnosis procedure as described below . (Ref er to the check points in servicing wr itten on the wiring diagrams attached to the indoor/outdoor units.) No ...

  • Toshiba RAS-10SKV-E2 - page 61

    1 1 -1- 1 . Operation whi c h is not a t r ou b le (P r ogram operation) For controlling the air conditioner , the progr am operations are built in the microcomputer as described in the f ollowing tab le. If a claim is made f or r unning operation, check whether or not it meets to the contents in the f ollowing tab le. When it does, we inf or m you ...

  • Toshiba RAS-10SKV-E2 - page 62

    1 1 -3. J udgment b y Flashing LED of Indoor Unit While the indoor unit monitors the operation status of the air conditioner , if the protectiv e circuit operates, the contents of self-diagnosis are displa y ed with bloc k on the indoor unit indication section. T a b le 1 1 -3-1 NO TES : 1. The contents of items B and C and a par t of item E are di ...

  • Toshiba RAS-10SKV-E2 - page 63

    FILE NO. SVM-0 9043 11 -4. Self-Di a gnosis b y Remote Cont r oller (Che c k Code) 1 . If the lamps are indicated as sh o wn B to E in T a b le 11 -3-1, e x ecute the self-diagnosis b y the remote controlle r . 2. When the remote controller is set to the ser vice mode, the indoor controller diagnoses the oper ation condi- tion and indicates the inf ...

  • Toshiba RAS-10SKV-E2 - page 64

    – 63 – FILE NO. SVM-09043 1 1 -4-2. Caution at se r vicing (1) After se r vicing, push the [ ] b utton to retu r n to the no r mal mod e . (2) After ser vicing by the chec k code, turn off breaker of the po wer supply , and tur n on breaker of the pow er supply again so that memor y in the microcomputer returns the initial status. Howe ver , th ...

  • Toshiba RAS-10SKV-E2 - page 65

    – 64 – FILE NO. SVM-09043 Block distinction Operation of dia gnosis function Judgment and action Check Block Check Cause of operation Air conditioner Remarks code code status Inv er ter ov er-current protective circuit operates . (Shor t time) P osition-detect circuit error or shor t-circuit between windings of compressor Current-detect circuit ...

  • Toshiba RAS-10SKV-E2 - page 66

    – 65 – Operation Measure Item by symptoms Check item Conceivab le principle cause Pa r t s ( DB01,C27,T01 and IC02) are defective. • Be sure to disconnect the motor connector CN 31 after shut off the p o w er suppl y , or it will be a cause of damage of the motor . (1) Power is not turned on (Does not operate entirely) 3 FILE NO. SVM-0 9043 1 ...

  • Toshiba RAS-10SKV-E2 - page 67

    (2) Po wer is not turned on though Indoor P .C. board is replaced <Confirmation procedure> YES YES NO NO To item of “ Power is not turned on ” . Turn on power supply. Does operation lamp flash? Is wired correctly to white and black lead wires of terminal board? Correct wiring. – 66 – FILE NO. SVM-0 9043 ...

  • Toshiba RAS-10SKV-E2 - page 68

    FILE NO. SVM-09043 – 67 – ( 3) On l y the indoor fan does not operate . Replace the fan motor. YES NO NO YES YES NO NO YES YES YES NO NO NO YES Does the fan stop in no operating status? Control P.C. board is defective. Start the operation with low fan setting in cool operation. Does AC 120 V or higher voltage apply to between red and black lead ...

  • Toshiba RAS-10SKV-E2 - page 69

    – 68 – FILE NO. SVM-09043 Press [ ] button. Is transmission mark indicated? Is receiver on indoor unit exposed to direct sunlight? Is there any thyristor fluorescent light nearby? Does indoor unit operate when moving remote control near receiver or indoor unit? Press [ ] button. Batteries are exhausted. Is transmission mark indicated? Does indo ...

  • Toshiba RAS-10SKV-E2 - page 70

    – 69 – FILE NO. SVM-09043 Measure gas pressure. Gas shortage Pipe clogging Thermo operation of compressor Gas circulation amount is down. Gas leak 1 1 -5-2. Wiring F ailure (Inte r connecting and serial signal wire) (1) Outdoor unit does not operate. 1) Is the voltage between indoor terminal bloc k 2 and 3 varied? Confirm that transmission from ...

  • Toshiba RAS-10SKV-E2 - page 71

    FILE NO. SVM-09040 (3) Checking procedure. – 70 – (2) Inspection pr ocedures 1) When a P .C . board is judged to be def ective , check f or disconnection, burning, or discolora- tion of the copper f oil patter n or this P .C. board. 2) The P .C . board consists of the f ollowing 2 parts a. Main P .C. board part: DC pow er supply circuit (5 V , ...

  • Toshiba RAS-10SKV-E2 - page 72

    100 30 40 50 60 70 80 90 20 10 0 01 0 2 0 3 0 4 0 5 0 Resistance value (k ) Temperature ( ˚ C) TD : Discharge temp. sensor TA : Room temp. sensor TC : Heat exchanger temp. sensor TO : Outdoor temp. sensor TE : Outdoor heat exchanger temp. sensor. TA, TC, TO , TE TD <Sensor characteristic tab le> FILE NO. SVM-09043 No. 6 7 Procedure Check poi ...

  • Toshiba RAS-10SKV-E2 - page 73

    – 72 – FILE NO. SVM-09043 1 Room temp . (T A) sensor Heat exchanger (TC) sensor 2 Remote control 3 Louver motor MP24ZCT 4 Indoor f an motor Disconnect the connector and measure the resistance value with tester . (Nor mal temp .) T o item of How to judge whether remote control is good or bad of the J udgment of trouble b y symptom. Measure the r ...

  • Toshiba RAS-10SKV-E2 - page 74

    – 73 – FILE NO. SVM-0904 3 1 Electrolytic capacitor 1. T ur n OFF the pow er supply breaker . (For r aising pressure, smoothing) 2. Discharge all three capacitors completely . 3 . Check that safety v alve at the bottom of capacitor is not broken. 4 . Check that vessel is not s wollen or exploded. 5 . Check that electrolytic liquid does not blo ...

  • Toshiba RAS-10SKV-E2 - page 75

    − 74 − H o w to rem o v e the front panel 1) Stop the ope r ation of the air conditioner and tu r n off its main p o wer suppl y . 2) Pull the air inlet g r ille t o w ard y ou to open it and rem o v e the air inlet g r ill e . Then rem o v e the 2 scr e ws fixing the front panel. 3) First open the ho r i z ontal lou v e r , and then rem o v ...

  • Toshiba RAS-10SKV-E2 - page 76

    − 75 − 1) Rem o v e the front panel, electrical pa r t and the ho r i z ontal lou v er f oll o wing procedure 3 . 2) Rem o v e the pipe holder at the rear side of main unit. 3) Rem o v e the 2 scr e ws on the heat e xchanger at the base bea r ing. 4) Rem o v e the scr e w on the heat e xchanger at the fixed plate from the back body and then pul ...

  • Toshiba RAS-10SKV-E2 - page 77

    FILE NO. SVM-09043 – 76 – 1 2 - 2 . Outdoor Unit No. P art name Procedures Remarks 1. Detachment 1) Stop operation of the air conditioner , and tur n off the main s witch and breaker of the air conditioner . 2) Remov e the v alve co ver . (ST1T ∅ 4 x 10 s 1 pc) • After removing scre w , remov e the v alv e cov er pulling it downward. 3) Rem ...

  • Toshiba RAS-10SKV-E2 - page 78

    FILE NO. SVM-09043 – 77 – No. P ar t name Procedures Remarks 1) P erform work of item 1 of 1 . 2) Remov e screw (ST1T ∅ 4 x 10 s 1 pc.) of the upper par t of the front cabinet. • If removing the inv er ter cover in this condition, the P .C. board can be chec ked. • If there is no space in the upper par t of the upper cabinet, perf or m wo ...

  • Toshiba RAS-10SKV-E2 - page 79

    FILE NO. SVM-09043 – 78 – No. P art name Procedures Remarks 1) Disconnect lead wires and connectors connected from the control board assembly to other parts. 1. Lead wires • Connection with ter minal bloc k : 3 wires (Black, White, Or ange) • Connection with compressor : remove the connector (3P) • Connection with reactor : remov e the co ...

  • Toshiba RAS-10SKV-E2 - page 80

    FILE NO. SVM-09043 – 79 – No. P ar t name Procedures Remarks 1) P erform work of item 1 of 1 and 1 of 2 . 2) Remov e the flange nut fixing the f an motor and the propeller f an. • Flange nut is loosened by turning clockwise . (T o tighten the flange nut, tur n counter- clockwise .) 3) Remov e the propeller fan. 4) Disconnect the connector f o ...

  • Toshiba RAS-10SKV-E2 - page 81

    FILE NO. SVM-09043 – 80 – No. P art name Procedures Remarks 1. Detachment 1) P er f o r m wo r k of item 1 of 1 and 1 of 2 . Requirement: P erform the w ork on a corrugated cardboar d, cloth, etc. to pre vent scratches to the pr oduct. 2) Remov e the front cabinet, and place it down so that the f an guard side faces downw ards. 3) Remov e the h ...

  • Toshiba RAS-10SKV-E2 - page 82

    FILE NO. SVM-0904 3 – 81 – 1) Cut the sensor 100 mm longer than old one. 2) Cut the protective tube after pulling out it (200 mm). 3) Move the protectiv e tube tow ard the thermal sensor side and tear the tip of lead wire in two , then strip the cov ering par t. 4) Pass the stripped par t through the ther mal constringent tube. 5) Cut the old s ...

  • Toshiba RAS-10SKV-E2 - page 83

    FILE NO. SVM 09043 − 82 − 1 3 . EXPLODED VIEWS AND PARTS LIST 13-1. Indoor Unit (E-Parts Assy) Location Part Location Part No. No. No. No. 401 43T60365 TERMINAL BLOCK; 3P 405 43T69612 DISPLAY UNIT 403 43T69319 TEMPERATURE SENSOR 410 43T62003 CORD CLAMP 404 43T69320 TEMPERATURE SENSOR 411 43T69824 PC BOARD Description Description ...

  • Toshiba RAS-10SKV-E2 - page 84

    FILE NO. SVM-09043 − 83 − 1 3 - 2 . Indoor Unit Location Part Location Part No. No. No. No. 201 43T00478 FRONT PANEL ASSY 217 43T22312 BEARING ASSY, MOLD 202 43T09402 GRILLE OF AIR INLET (ORIGINAL) 218 43T39323 BEARING BASE 203 43T03357 BACK BODY ASSY 219 43T20323 ASSY CROSS FLOW FAN 204 43T80317 AIR-FILTER 220 43T39324 MOTOR BAND (LEFT) 205 43 ...

  • Toshiba RAS-10SKV-E2 - page 85

    FILE NO. SVM-09043 − 84 − 1 3 - 3 . Outdoor Unit Location Part Location Part No. No. No. No. 1 43T19335 FAN GUARD 15 43T49327 CUSHION,RUBBER 2 43T20324 PROPELLER FAN 18 43T41423 COMPRESSOR(Made in China) 3 43T00482 FRONT CABINET 19 43T19337 PACKED VALVE COVER 4 43T43403 CONDENSOR ASSEMBLY 20 43T00481 UPPER CABINET 5 43T62323 TERMINAL COVER 21 4 ...

  • Toshiba RAS-10SKV-E2 - page 86

    FILE NO. SVM-09043 − 85 − 1 3 - 4 . Outdoor Unit (E- P a r ts Assy) Location Part Location Part No. No. No. No. 701 43T62320 HEATSINK 705 43T60377 TEMPERATURE SENSOR 702 43T69819 PC BOARD 706 43T50304 SENSOR;HEAT EXCHANGER 703 43T60391 TERMINAL BLOCK; 5P 707 43T62313 BASE-PLATE-PC 704 43T60326 FUSE 708 43T55325 CAPACITOR; PLASTIC-FILM Descripti ...

  • Toshiba RAS-10SKV-E2 - page 87

    FILE NO. SVM-03008 – 87 – TOSHIBA CARRIER CORPORA TION ...

Manufacturer Toshiba Category Air-conditioning

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