manualshive.com logo in svg

Toshiba RAS-10YAV-E, Service Manual

Share
Download
Toshiba RAS-10YAV-E Service Manual Download Page 22

– 22 –

7

-2.

Outdoor Unit (In

ver

ter Assemb

ly

)

RAS-10Y

A

V

-E,
 RAS-13Y

A

V

-E

220–230–240 V

~ 50/60 Hz

MICRO-COMPUTER BLOCK DIAGRAM

Over current

sensor

Driver circuit

of P.M.V.

Over current

sensor

Heat exchanger

temp.sensor

Suction temp. 

sensor

Outdoor air 

temp. sensor

Discharge 

temp. sensor

Inddor unit 

send/receive

circuit

Relay
circuit

Noise

Filter

Converter

(AC 

 DC)

Clock 

frequency 

16MHz

High Power 

factor Correction

circuit

Input current

sensor

Rotor position

detect circuit

Rotor position

detect circuit

•  PWM synthesis function
•  Input current release control
•  IGBT over-current detect control
•  Outdoor fan control
•  High power factor correction control
•  Inverter output frequency control
•  A/D converter function
•  P.M.V. control
•  Discharge temp. control
•  4-way valve control
•  Signal communication to indoor unit

M.C.U

For INDOOR UNIT

4-way

valve

P.M.V.

Inverter

(DC 

 AC)

Over current
detect circuit

Gate drive

circuit

Gate drive

circuit

Over current

sensor

Inverter

(DC 

 AC)

Outdoor

Fan motor

Compressor

MCC808 (P.C.B)

OUTDOOR UNIT

Summary of Contents for RAS-10YAV-E

Page 1: ...SERVICE MANUAL FILE NO A00 T004 AIR CONDITIONER SUPPLEMENT SPLIT TYPE PRINTED IN JAPAN Aug 2000 ToMo RAS 10YKV E RAS 10YAV E RAS 13YKV E RAS 13YAV E R410A ...

Page 2: ...4 WIRING DIAGRAM 16 5 SPECIFICATIONS OF ELECTRICAL PARTS 18 6 REFRIGERANT CYCLE DIAGRAM 19 7 CONTROL BLOCK DIAGRAM 21 8 OPERATION DESCRIPTION 23 9 INSTALLATION PROCEDURE 36 10 HOW TO DIAGNOSE THE TROUBLE 40 11 HOW TO REPLACE THE MAIN PARTS 59 12 EXPLODED VIEWS AND PARTS LIST 69 ...

Page 3: ...mm 189 Net weight kg 8 Fan motor output W 19 Indoor unit Air flow rate Cooling Heating m h 480 520 Unit model RAS 10YAV E Height mm 550 Width mm 780 Dimension Depth mm 270 Net weight kg 38 Motor output W 750 Type Twin rotary type with DC inverter variable speed control Compressor Model DA91A1F 44F Fan motor output W 40 Outdoor unit Air flow rate Cooling Heating m h 2120 2120 Type Flare connection ...

Page 4: ... kg 8 Fan motor output W 19 Indoor unit Air flow rate Cooling Heating m h 530 560 Unit model RAS 13YAV E Height mm 550 Width mm 780 Dimension Depth mm 270 Net weight kg 38 Motor output W 750 Type Twin rotary type with DC inverter variable speed control Compressor Model DA91A1F 44F Fan motor output W 40 Outdoor unit Air flow rate Cooling Heating m h 2520 2520 Type Flare connection Liquid side Ø6 35...

Page 5: ...C WB 6 C Air flow High Pipe length 5m 230V RAS 10YKV E RAS 13YKV E RAS 10YKV E RAS 13YKV E Capacity ratio 100 2 7 kW RAS 10YKV E 100 3 7 kW RAS 13YKV E 105 100 95 90 85 80 75 70 65 60 55 50 32 34 36 38 40 42 33 35 37 39 41 43 Outdoor temp C Capacity ratio Conditions Indoor DB27 C WB19 C Indoor air flow High Pipe length 5m Current Limited Start RAS 10YKV E RAS 13YKV E 120 110 100 90 80 70 60 50 40 ...

Page 6: ...re as shown in Table 2 2 1 Never use copper pipes thinner than 0 8 mm even when it is available on the market 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 caref...

Page 7: ...aken to ensure that water or dust does not enter the pipe interior that no other oil other than lubricating oils used in the installed air conditioner 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 ...

Page 8: ...ventional flare tool Nominal diameter Outer diameter mm Thickness mm Flare tool for R410A clutch type Clutch type Wing nut type 1 4 6 35 0 8 0 to 0 5 1 0 to 1 5 1 5 to 2 0 3 8 9 52 0 8 0 to 0 5 1 0 to 1 5 1 5 to 2 0 1 2 12 70 0 8 0 to 0 5 1 0 to 1 5 2 0 to 2 5 5 8 15 88 1 0 0 to 0 5 1 0 to 1 5 2 0 to 2 5 A mm Conventional flare tool Nominal diameter Outer diameter mm Thickness mm Flare tool for R4...

Page 9: ...d by the manufacturer If any other oil is used the lubricating oils may deteriorate and cause the compressor to burn out Table 2 2 7 Tightening torque of flare for R410A Reference values Fig 2 2 2 Relations between flare nut and flare seal surface Table 2 2 6 Flare and flare nut dimensions for R22 43 45 45 46 B A C D Dimension mm Nominal diameter Outer diameter mm Thickness mm A B C D Flare nut wi...

Page 10: ...ls 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 Use vacuum pump by attaching vacuum pump adapter 2 Torque wrench For Ø6 35 3 Pipe cutter Tools exclusive for R410A The following tools for R410A are required Tools whose specifications are changed for R410A and their interchan...

Page 11: ... gas side Recover the refrigerant and check no refrigerant remains in the equipment For refrigerant charging see the figure below Connect the charge hose of the vacuum pump adapter Open fully both packed valves at liquid and gas sides 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 When ...

Page 12: ... use the same type of brazing filler Fig 2 4 2 R410A refrigerant is HFC mixed refrigerant Therefore if it is charged with gas the compo sition of the charged refrigerant changes and the characteristics of the equipment varies 2 5 Brazing of Pipes 2 5 1 Materials for Brazing 1 Silver brazing filler Silver brazing filler is an alloy mainly composed of silver and copper It is used to join iron copper...

Page 13: ...g 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 Attach a reducing valve and a flow meter to the Nitrogen gas cylinder Use a copper pipe to direct the piping material and attach a flow meter to the cylinder Apply a seal onto the clearance between the piping material and inserted copper pipe ...

Page 14: ... Knock out system Front panel Back body 232 326 232 Hanger 321 Drain hose 0 54m Connecting pipe 0 39m External length reference Flare ø6 35 Flare ø9 52 Hanger Connecting pipe 0 49m 659 65 5 344 326 450 65 5 For stud bolt ø8 ø10 For stud bolt ø6 Hanger Minimum distance to wall Minimum distance to ceiling 265 178 5 20 20 37 40 5 60 5 790 126 269 319 10 5 76 Center line Hanger Hanger 3 5 37 Hanger Mi...

Page 15: ...e roof attaching Fan guard Valve cover Earth terminal B leg part Hanger ø6 hole pitch Anchor bolt long hole pitch A leg part view Z Charging port 2 Ø6 hole 2 Ø6 hole 600 50 11 R15 36 310 296 600 50 11 R15 36 310 296 R 5 5 R 5 5 Detailed A leg part Detailed B leg part Outside line of product Outside line of product 600 310 B C A D 4 x Ø11 x 17U shape hole For Ø8 Ø10 anchor bolt Mounting dimensions ...

Page 16: ...the QS lead of louver motor Check the transformer and the rated voltage power supply circuit Check for voltage at the CN10 connector side point Check the transformer and the rated voltage power supply circuit MAIN P C BOARD MCC 772 BLK P04 CN30 CN23 INDOOR TERMINAL BLOCK INDOOR UNIT OUTDOOR UNIT CN07 CN10 TO1 DC35V DC12V DC7V DC0V C06 C02 IC04 R116 C15 R21 J04 F01 FUSE T6 3A 250V R109 VARISTOR SG0...

Page 17: ... RELAY G E A BU EU BV EV BW EW BX BY BZ C13 C14 C12 ORN P10 YEL DB01 P20 BLU Q200 P18 P17 P19 P09 P06 P01 P02 P03 P08 P07 F01 FUSE 25A VARISTOR To INDOOR UNIT P12 P13 P14 P11 PUR BLK PNK YEL RED WHI BLK GRY 3 2 1 3 2 1 3 2 1 3 2 1 2 1 2 1 3 2 1 3 2 1 2 1 2 1 1 2 3 1 2 3 4 4 5 5 2 2 1 1 1 2 3 F03 FUSE 15A F04 FUSE 3 15A RELAY RELAY 3 2 1 3 2 1 BLK P23 WHI COMPRESSOR P22 RED P21 FM POWER SUPPLY 220 ...

Page 18: ...de 7 5V x 1 13V x 1 26 5V x 3 16V x 1 15V x 1 3 Reactor CH38Z K L 10mH 16A x 2 4 Outside fan motor ICF 140 40 7 DC140V 40W 5 Fan control relay AJQ1341 Coil DC12V Contact AC125V 3A 6 Suction temp sensor TS sensor Inverter attached 10kΩ 25 C 7 Discharge temp sensor TD sensor Inverter attached 62kΩ 20 C 8 Outside air temp sensor TO sensor Inverter attached 10kΩ 25 C 9 Heat exchanger temp sensor TE se...

Page 19: ... fan Deoxidized copper pipe Outer dia 6 35mm Thickness 0 8mm Sectional shape of heat insulator Allowable height difference 10m Allowable pipe length Max 15m P Pressure measurement Gauge attaching port Vacuum pump connecting port Strainer Pulse modulating valve at liquid side SEV15RC2 Ø1 5 x 200 Ø1 5 x 200 TD 4 way valve CHV 0213 Compressor DA91A1F 44F TS T2 Outdoor heat exchanger Split capillary T...

Page 20: ...e Standard pressure P MPa T1 C T2 C Indoor fan mode Outdoor fan mode Compressor revolution rps 10YKV E 0 8 to 1 0 9 to 11 42 to 44 High High 56 27 19 35 13YKV E 0 8 to 1 0 8 to 10 46 to 48 High High 85 Temperature condition C Heat exchanger pipe temp Indoor Outdoor Model name Standard pressure P MPa T1 C T2 C Indoor fan mode Outdoor fan mode Compressor revolution rps 10YKV E 3 5 to 3 7 42 to 44 2 ...

Page 21: ...ceiver Louver Driver Noise Filter ECONO Sign Display PRE DEF Sign Display Indoor Fan Motor Louver Motor Timer Display Operation Display Louver ON OFF Signal Heat Exchanger Sensor Temperature Sensor Infrared Rays Signal Receiver Initializing Circuit Clock Frequency Oscillator Circuit Power Supply Circuit Infrared Rays Remote Controller Operation START STOP Thermo Setting Fan Speed Selection ON TIME...

Page 22: ...ion circuit Input current sensor Rotor position detect circuit Rotor position detect circuit PWM synthesis function Input current release control IGBT over current detect control Outdoor fan control High power factor correction control Inverter output frequency control A D converter function P M V control Discharge temp control 4 way valve control Signal communication to indoor unit M C U For INDO...

Page 23: ...pressor 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 Temperature setting of the indoor heat ex changer by using heat exchanger sensor Preven...

Page 24: ...nging AC 220 230 240V power to DC once and controls capacity by changing supply power status to the compressor with transistor module includes 6 transistors The outline of the control is as follows The revolution position and revolution speed of the motor are detected by detecting winding electromo tive force of the compressor motor under operation and the revolution speed is changed so that the m...

Page 25: ...louvers are auto matically controlled according to the operation status AUTO COOL DRY HEAT Besides positions of vertical air flow louvers can be arbitrarily set by pressing the SET button The louver position which has been set by the SET button is stored in microcomputer and the louver is automatically set at the stored position in the next operation 2 Swing If the AUTO button is pressed during ru...

Page 26: ...n pushing START STOP button of the remote control receive sound is issued from the main unit and the next operations are performed together with opening the vertical air flow louvers HEAT Table 8 1 4 Model name RAS 10YAV E RAS 13YAV E Compressor revolution rps To 13 2 To 34 1 From 34 7 To 13 2 To 34 1 From 34 7 TO 38 C 450 800 800 450 940 940 TO 38 C 450 630 800 450 700 940 Outdoor temp sensor TO ...

Page 27: ...or is operated at fan speed L as shown in Fig 8 2 1 while the outdoor unit stops 2 Prevent freezing control If temperature of indoor heat exchanger de tected by the indoor heat exchanger sensor is 5 C or lower compressor motor speed is gradually lowered to prevent freezing of the indoor heat exchanger If temperature is 7 C or higher return the operation to the above item 1 3 Current release contro...

Page 28: ...3 Control 3 C zone Keep zone When TD detect value is 105 C or higher operating motor speed is not changed if raising operation speed 4 Control 4 D zone Slow down zone of motor speed When TD detect value is 108 C or higher operating motor speed is slowly down 5 Control 5 E zone Normal down of motor speed When TD detect value is 112 C or higher operating motor speed is down 6 Control 6 F zone Operat...

Page 29: ... 3 3 5 Room temp Set temp Air volume Compressor motor speed 13 rps 13 rps SUL 20 rps 16 rps L 17 rps 15 rps L SUL 2 13 10 Time 2H 1H 8 2 2 DRY Operation The Remote Controller MODE Button is Set to the DRY Position Once the setting is made the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing START STOP button Dry operation sign...

Page 30: ...the indoor unit and also controls revolution speed of the compres sor motor The power coupler IC20 for four way valve is turned on and turned off in defrost operation 1 Heating capacity control Calculate the difference between temperature detected by room temp sensor every minute and the set temp set on Temp indicator and variation amount of room temp Then obtain the correction amount of the comma...

Page 31: ...nutes Q Setting on remote control HEAT mode HIGH Fan 30 C temp R Room temp is 19 C to 24 C and outside air temp is 5 C or lower S Defrost operation has been already performed once 2 Defrost operation Operation of the compressor is stopped once turn off power coupler for four way valve after 10 seconds and then exchange the four way valve After 20 seconds restart operation of the compressor Turn of...

Page 32: ...e operation has started The operation in Fan mode continues until an operation mode is selected If the room temperature is 20 C or higher when AUTO operation started within 2 hours after HEAT operation had stopped select an opera tion mode after Fan operation of ultra low fan In AUTO operation the set temperature of each operation can be corrected by the remote controller in the range of 17 to 30 ...

Page 33: ...art automatically The above Auto Restart settings can be carried out When the system is stand by not operating When the system is operating Operation Push the TEMPORARY button continuously more than three seconds Motion Stand by The system starts to operate The green light goes on about three seconds after The unit beeps three times The orange light goes on The system is operating If the system is...

Page 34: ...inuously more than three seconds Motion Operating The orange light goes on The system stops to operate The orange light goes off about three seconds after The unit beeps three times The system stops If the system is not required to stop at this time use the remote control ler and to restart During subsequent operation the green light goes on TEMPORARY 0 3S TEMPORARY 0 3S 2 If OFF TIMER operation i...

Page 35: ...heck the location of a problem CNL Cancel button Push this button to cancel reservation of timer operation RSV Reserve button Push this button to reserve timer operation START STOP button Push this button to start stop the air conditioner AUTO Auto louver button Push this button to swing the vertical air flow louvers automatically MODE Mode select button Push this button to select an operation mod...

Page 36: ...ED BY FIRE OR SOMETHING ELSE IT CAUSES GENERATION OF POISONOUS GAS WARNING Never modify this unit by removing any of the safety guards or by by passing 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 Before doing the electrical work attach an approved plug to the power supply co...

Page 37: ... details see the owner s manual Remote controller A place where there are no obstacles such as a curtain that may block the signal from the indoor unit 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 apart from the nearest TV set or stereo equipment This is necessary to prevent image dis...

Page 38: ...er which disconnects all poles and has a contact separation of at least 3 mm must be incorporate in the fixed wiring An approved circuit breaker or switches must be used 2 Connection with power supply plug Attach power supply plug with power cord and plug it into wall outlet An approved power supply cord and plug must be used NOTE Perform wiring works so as to allow a generous wiring capacity 9 2 ...

Page 39: ...to 62 5 0 to 6 2 kgf m Tightening torque of flare pipe connections Pressure of R410A becomes higher than that of R22 Approx 1 6 times Therefore using a torque wrench tighten firmly the flare pipe connecting sections which connect the indoor and outdoor units up to the specified tightening torque Incorrect connections may cause not only a gas leakage but also a trouble of the refrigeration cycle Fl...

Page 40: ...n the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC280V remains and discharging takes a lot of time After turning off the power source if touching the charging section before discharging an electri cal shock may be caused Discharge the electrolytic capacitor completely by using soldering iron etc Discharging method 1 Remove the inverter cov...

Page 41: ...ooth operation of the compressor the compressor motor speed is restricted to Max 41 rps for 2 minutes and Max 91 rps for 2 minutes to 3 minutes respectively after the operation has started If the set value is above the room temperature Cooling operation is not performed And check whether battery of the remote controller is consumed or not After selecting Cool or Heat mode select an operation mode ...

Page 42: ... OPERATION ECONO TIMER PRE DEF OPERATION ECONO TIMER PRE DEF OPERATION ECONO TIMER PRE DEF OPERATION ECONO TIMER PRE DEF OPERATION ECONO TIMER PRE DEF Item A B C D E Check code Block display Description for self diagnosis 10 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 di...

Page 43: ...O COOL DRY HEAT AUTO LOW MED HIGH TIMER CHK MODE ECONO Hr ONOFFTIMER C TEMP AUTO SET FAN Alphanumeric characters are used for the check codes is 5 is 6 is A is B is C is D 1 2 3 TIMER CHK E START STOP 10 4 Self Diagnosis by Remote Controller Check Code 1 The self diagnosis by the check code is performed while items B to E blocks are displayed 2 When turning the operation mode on the remote control...

Page 44: ...mal 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 P C board 3 Check 3 15A of inverter P C board 2 To display Other block during operation check compressor thermo operation and supply gas check gas leak also 3 Unit operates normally during check If Return serial signal does not stop between ind...

Page 45: ...temp sensor TE 2 Check P C board Outdoor P C board Compressor drive output error Compressor error lock missing etc Break down All off Displayed when error is detected When 20 seconds passed after start up position detect circuit error occurred Replace compressor Return serial signal has been sent when operation started but it is not sent from halfway 1 Compressor thermo operation Gas shortage Gas ...

Page 46: ...W trans T01 applied YES Is DC35V DC12V DC7V applied to secondary side of SW trans T01 applied To item of Pre check or trouble before power board Remote controller error Replace main board Replace temp fuse set Check connecting wire Microcomputer is defective Turn OFF breaker once and ON again after removing motor SW trans IC IC01 for power supply or fan motor Motor is defective Refer to the item o...

Page 47: ...n rotate normally Repair the bearing of the cross flow fan Turn on the power supply Is the rotation signal DC 5V 0V output between 4 blue lead wire and 2 black lead wire of the motor connector CN10 when rotating the cross flow fan by hand in no operating status 2 pulses one turn Replace the control board Turn off the power supply and turn it on after removing the motor from the board Is the voltag...

Page 48: ...rning on power supply alone Operation may be normally performed selected by operation on the remote controller Cause IC is built in the indoor fan motor therefore P C board is also mounted to inside of the motor If soldering of P C board in the motor is defective or IC is defective the fan motor may rotate by only inputting the power turning on power supply Confirmation procedure 1 Remove the fron...

Page 49: ...r conditioner Battery life Can any signal tone be heard in a transistor radio when transmitting within 5cm distance from the radio Does the transmission indicator light Replace P C board Replace the battery Normal Remote controller is failure NO YES NO YES NO YES NO YES NO YES NO YES NO YES Is Temporary Cool operation possible when keeping the temporary switch of the air conditioner main unit pres...

Page 50: ...al block varied Confirm that transmission from indoor to outdoor is correctly performed based upon the following dia gram NOTE Measurement should be performed 2 minutes and 30 seconds after starting of the operation Be sure to prepare a diode for judgment Normal time Voltage swings between DC15 and 60V Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while after operation start...

Page 51: ...he operation after turning off power of the air conditioner once NOTE After all the operations stopped by the remote controller the power keeps being supplied to outdoor unit for approx 3 minutes If operating the air conditioner by remote controller again just after all the operations stopped by the remote controller positioning of the valve is not performed when outdoor unit is activated because ...

Page 52: ...or and diode block DB01 Connect discharge resistance approx 100Ω40W or soldering iron plug between terminals of the electro lytic capacitor 500µF of C14 with printed CAU TION HIGH VOLTAGE on P C board If 15A fuse is blown discharge both edges of the electrolytic capacitor with soldering iron OK if 500µF DC280 to 320V Remove CN300 while pushing the part indicated by an arrow because CN01 is a conne...

Page 53: ...g of compressor Check fan motor position detect signal Replace com pressor C B A Replace outdoor fan motor Replace control board assembly Replace control board Replace compressor Check compressor winding resistance 10 8 How to Check Simply the Main Parts 10 8 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 po...

Page 54: ...heck 1 Voltage of relay coil DC 12V Between pin 10 of IC31 and GND Between pin 11 of IC31 and GND 2 Between No 1 and 2 of connecting cable terminal block 220 230 240V AC 1 All indicators light for 3 sec 2 Indicators do not indicate normally after approximate 3 sec 1 Compressor does not operate 2 OPERATION lamp flashes 1 The voltage of DC 35V is not measured between the red and black of the motor t...

Page 55: ...scharge temp sensor TA Room temp sensor TC Heat exchanger temp sensor TO Outdoor temp sensor TE Outdoor heat exchanger temp sensor TS Suction temp sensor TA TC TO TE TS TD 10 8 2 P C Board Layout Bottom View For the Top View refer to page 61 1 Sensor characteristic table TP1 TP2 GND 35V 5V 12V ...

Page 56: ...type Model PW 2AL 4 Outdoor temperature sensor TO discharge temperature sensor TD suction temperature sensor TS outdoor heat exchanger temperature sensor TE Checking procedure Measure the resistance value of each winding by using the tester Measure the resistance value of winding by using the tester For details refer to Section 10 9 Check conduction by using the tester Disconnect the connector and...

Page 57: ... C13 C14 500µF 400V 1 Turn OFF the power supply breaker 2 Discharge all four capacitors completely 3 Check that the normal rectification characteristics are shown in continuity test by the tester MCC 808 Soldered surface Heat sink IGBT side C12 C13 C14 C15 Case that product is good Pointer swings once and returns slowly When performing test once again under another polarity the pointer should retu...

Page 58: ...or does not rotate Outdoor fan motor stops within several tens seconds though it started rotating Outdoor fan motor rotates or does not rotate according to the position where the fan stopped etc Remote controller check code 02 Outdoor block 1A Outdoor fan drive system error 2 Cause The following causes are considered when the outdoor fan motor does not normally rotate 1 Mechanical lock of the outd...

Page 59: ... is performed without pressing the center of the air outlet the surface of the front panel may be covered with frost and have a waterdrop Part name Front panel No Q 11 HOW TO REPLACE THE MAIN PARTS 11 1 Indoor Unit Remarks 1 Perform the process Q above 2 Remove the screw securing the shield metal plate 3 Remove the electrical part cover by pressing the nail located on upper portion of the electric...

Page 60: ...and remove the screw fixing it then remove the right side of the end plate from the rib fixing the main unit by sliding the heat exchanger slightly to the right side 1 Perform the process S 2 Loosen the set screw of the cross flow fan 3 Remove the screw fixing the shaft bearing base 4 Lift slightly up the left side of the heat exchanger and pull the shaft bearing base out left downwards When assem...

Page 61: ...r conditioner 2 Remove the front panel Remove the two fixing screws Ø4 x 14l 3 Remove the electrical part base No Q Remarks Replace the thermal fuse terminal block microcomputer ass y and the P C board ass y Part name Common procedure 11 2 Microcomputer P C board layout ...

Page 62: ... hole and then fix it with screw ST1TØ4 x 10l 1 pc 3 Attach the valve cover ST1TØ4 x 10l 1 pc Insert the upper part to the upper cabinet set hook claw of the valve cover to square holes at three positions of the main unit and attach it pushing upward 1 Detachment 1 Perform work of item 1 of Q 2 Remove screws ST1TØ4 x 10l 1 pc of the front cabinet and inverter cover and screws ST1TØ4 x 10l 3 pcs of...

Page 63: ...ard Be careful to discharge the capacitor because the electrolytic capacitor cannot naturally discharge and voltage remains according to trouble type in some cases NOTE This capacitor is one with mass capacity Therefore it is dangerous that a large spark generates if short circuiting be tween polarity with screwdriver etc for discharging 4 Remove screw ST1TØ4 x 10l 1 pc fixing the main body and th...

Page 64: ...embly from P C board base 1 Main control board assembly side Remove two claws of P C board base and remove upward the heat sink with hands Remove three screws fixing the heat sink and main control board assembly side and replace the board with a new one Reactor U Rear cabinet 1 Perform work of item 1 of Q and R S 2 Remove fixed screws fixing to the bottom plate ST1TØ4 x 10l 3 pcs 3 Remove fixed sc...

Page 65: ...s 4 Remove the sound insulation material 5 Remove terminal cover of the compressor and disconnect lead wire of the compressor thermo and the compressor from the terminal 6 Remove pipe connected to the compressor with a burner 7 Remove the fixing screw of the bottom plate and heat exchanger ST1TØ4 x 10l 1 pc 8 Remove the fixing screw of the bottom plate and valve clamping plate ST1TØ4 x 10l 2 pcs 9...

Page 66: ...d marking is marked on the pulse modulat ing valve is connected to CN13 of the control board assembly 1 Detachment 1 Perform work of item 1 of and 2 Remove the front cabinet and put it down so that fan guard side directs downward Perform work on a corrugated cardboard cloth etc to prevent flaw to the product 3 Remove the hooking claws by pushing minus screwdriver according to the arrow mark in the...

Page 67: ...s and solder them 8 Move the thermal constringent tubes toward the soldered parts and heat them with the dryer and constring them 9 Wind the attached color tape round the both terminals of the protective tube when colored protective tube is used 10 Fix the sensor again NOTES 1 Store the joint part of the sensor and the connector in the electric parts box 2 Never joint them near the thermal sensor ...

Page 68: ... 68 MCC 808 ...

Page 69: ... 766 Location Part Description No No 407 43T69062 P C Board Assembly MCC 772 10YKV E 408 43T69063 P C Board Assembly MCC 772 13YKV E 412 43T61001 Base E Parts ABS Black UL94 5V 413 43T62006 Base Shield SGCC Z08 LUB Location Part Description No No 402 403 407 RAS 10YKV E 408 RAS 13YKV E 412 413 405 404 12 EXPLODED VIEWS AND PARTS LIST 12 1 Indoor Unit 1 RAS 10YKV E RAS 13YKV E ...

Page 70: ... Part Description No No Location Part Description No No 222 43T49023 Holder of Plate of EVA SEAL 224 43T79002 Drain Guide 225 43T39002 Motor Band Left 226 43T39001 Motor Band Right 227 43T21010 Fan Motor 228 43T20007 Fan Cross Flow 229 43T22002 Bearing 230 43T39003 Base Bearing 231 43T03001 Rear Plate 232 43T07002 Pipe Holder 233 43T82001 Installation Plate 236 43T69044 Remote Controller 237 43T63...

Page 71: ...046383 Valve Packed 9 52 13 43147196 Bonnet 1 4 IN 14 43047401 Bonnet 3 8 IN 15 43047491 Tube Capillary I D 1 5 17 43046351 Valve Pulse Modulating Location Part Description No No Location Part Description No No 18 43046378 Coil P M V 19 43058264 Reactor 20 43050298 Thermo Bimetal CS 7 21 4302C019 Motor Fan DC 22 43047549 Nut Flange 23 43020310 Fan Propeller 24 43097204 Nut 25 43049643 Cushion Rubb...

Page 72: ...Location Part Description No No Location Part Description No No 4 4 3 2 1 4 3 2 1 707 708 706 705 701 703 704 702 TO Sensor Ø6 TE Sensor Ø6 TS Sensor Ø6 TD Sensor Ø4 705 4306A044 Terminal block 9P 706 43062215 Base P C Board 707 43063306 Heatsink 708 4306S230 P C Board Assembly MCC 808 12 3 P C Board Layout RAS 10YAV E RAS 13YAV E ...

Page 73: ...TOSHIBA CARRIER CORPORATION 336 TADEHARA FUJI SHI SHIZUOKA KEN 416 8521 JAPAN ...

Page 74: ...0kW 25 C 407 10YKV E 43T69062 P C Board Assembly MCC 772 407 13YKV E 43T69063 P C Board Assembly MCC 772 412 43T61001 Base E Parts ABS Black UL94 5V 413 43T61001 Base E Parts ABS Black UL94 5V 405 43T69031 P C Board Assembly WRS LED MCC 766 404 43T69005 Sensor Thermostat 10kW 25 C ...

Page 75: ...70001 Drain Hose Assembly 209 43T19004 Accepted Signal Filter 208 10YKV E 43T08106 LED Panel 208 10YKV E 43T08106 LED Panel 246 85061 Manual 242 43T62004 Shield Cover 238 43T62020 Cover E Parts 239 43T62002 Cover Up Terminal 202 43T00044 Grille Suction 206 43T07021 Screw Cap L 207 43T07020 Screw Cap R 203 43T80001 Air Filter L 204 43T80002 Air Filter R 245 43T01002 Mark ...

Page 76: ...ller 236 43T69044 Remote Controller 241 43T62003 Cord Clamp 217 43T47005 Pipe Suction 216 43T47006 Pipe Delivery 215 43T44024 Refrigerant Cycle Assembly 221 43T49028 Plate EVA SEAL 222 43T49023 Holder of Plate of EVA SEAL 229 43T22002 Bearing 244 43T49024 U Pipe Holder 225 43T39002 Motor Band Left 224 43T79002 Drain Guide 220 43T49003 Spring 243 43T39010 Drain Guide UP 218 43T49007 Pipe Shield 219...

Page 77: ...ain Nipple 22 43047549 Nut Flange 23 43020310 Fan Propeller 21 4302C019 Motor Fan DC 19 43058264 Reactor 8 43019903 Hanger 1 43005368 Cabinet Back Assembly 6 4301V012 Cover Valve Packed 7 43062230 Cover Wiring Assembly 2 43005369 Cabinet Upper Assembly 24 43097204 Nut 25 43049643 Cushion Rubber ...

Page 78: ...er Sensor 29 43019904 Holder Sensor 15 43047491 Tube Capillary I D 1 5 1 43005368 Cabinet Back Assembly 10 43043644 Condenser Assembly 20 43050298 Thermo Bimetal CS 7 28 43063195 Holder Thermo Bimetal 12 43046383 Valve Packed 9 52 14 43047401 Bonnet 3 8 IN 11 43046382 Valve Packed 6 35 13 43147196 Bonnet 1 4 IN 17 43046351 Valve Pulse Modulating 18 43046378 Coil P M V 31 43046344 Valve 4 way 32 43...

Page 79: ...Board Assembly MCC 808 706 43062215 Base P C Board 705 4306A044 Terminal block 9P 701 43050382 Sensor TC F6 703 43060052 Fuse 25A 250V Lead Type 704 43060726 Fuse 15A 250V Lead Type 702 43050334 Sensor TD F4 TO Sensor Ø6 TE Sensor Ø6 TS Sensor Ø6 TD Sensor Ø4 ...

Reviews:

No comments

Brands by name

Popular brands

Load more brands