Инструкция на Мультисплит-системы Toshiba серии RAS .... (сервис-мануалы) бренда Toshiba

FILE NO. A05-014

SERVICE MANUAL SPLIT TYPE <Cooling OnlyType> Indoor Unit RAS-M10GKCVP-E RAS-M13GKCVP-E RAS-M16GKCVP-E Outdoor Unit RAS-3M23GACV-E R410A PRINTED IN JAPAN, Jan.,2006 ToMo

1. SAFETY PRECAUTIONS

For general public use Power supply cord of outdoor unit shall be more than 1.5 mm ² (H07RN-F or 245IEC66) polychloroprene sheathed flexible cord. • Read this “SAFETY PRECAUTIONS” carefully before servicing. • The precautions described below include the important items regarding safety. Observe them…

• 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 (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEAT RESISTORS, FURNACE, STOVES, ETC. • WHEN MOVING THE AIR-CONDITIONER FOR INSTALLATION…

2. SPECIFICATIONS

The indoor and outdoor units that can be used in combination are shown in the tables below. Table of models that can be connected Type Cooling-only Outdoor unit RAS-3M23GACV–E Indoor unit RAS-M10GKCVP–E RAS-M13GKCVP–E RAS-M16GKCVP–E RAS-M10GKCV–E RAS-M13GKCV–E RAS-M16GKCV–E RAS-M10GDCV–E…

2-1. Specifications

RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E / RAS-3M23GACV-E Indoor unit Outdoor unit Cooling capacity Cooling capacity range Power supply Unit model (kW) (kW) Unit model Running current (A) Indoor unit Power consumption (W) Power factor (%) Electric Unit model characteristics Running current (A)…

2-2. Specifications of Performance When Each Indoor Unit is Combined with Other Unit

2-2-1. Operation Characteristic Curve

12 • Conditions Indoor : DB 27˚C/WB 19˚C Outdoor : DB 35˚C Air flow : High Pipe length : 5m × 3 3 units operating Current (A) 220V 7 230V 6 5 240V Inverter output frequency (rps) 2-2-2. Capacity Variation Ratio According to Temperature • Conditions Indoor : DB 27˚C Outdoor : DB 35˚C Indoor air flow…

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…

Table 3-2-1 Thicknesses of annealed copper pipes

Thickness (mm) Nominal diameter Outer diameter (mm) R410A R22 1/4 6.35 0.80 0.80 3/8 9.52 0.80 0.80 1/2 12.70 0.80 0.80 5/8 15.88 1.00 1.00 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…

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 conventional flare tool. Flare processing dimensions differ according to the type of flare tool. When using a conventional flare…

Table 3-2-6 Flare and flare nut dimensions for R22

Dimension (mm) Nominal diameter Outer diameter (mm) Thickness (mm) A B C D Flare nut width (mm) 1/4 6.35 0.8 9.0 9.2 6.5 13 17 3/8 9.52 0.8 13.0 13.5 9.7 20 22 1/2 12.70 0.8 16.2 16.0 12.9 20 24 5/8 15.88 1.0 19.7 19.0 16.0 23 27 3/4 19.05 1.0 23.3 24.0 19.2 34 36 45˚ 6˚ to 4 B A C 43˚ D to 4 5˚…

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 Ø12.7…

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. When the compound gauge’s pointer has indicated –0.1 Mpa (–76 cmHg), place the handle Low in the…

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…

2. Characteristics required for flux

• Activated temperature of flux coincides with the brazing temperature. • Due to a wide effective temperature range, flux is hard to carbonize. • It is easy to remove slag after brazing. • The corrosive action to the treated metal and brazing filler is minimum. • It excels in coating performance and…

4. CONSTRUCTION VIEWS

4-1. Indoor Unit RAS-M10GKCVP-E RAS-M13GKCVP-E RAS-M16GKCVP-E 790 Plasma pure filter Indoor heat exchanger Front panel Air filter Knockout system Knockout system Zeolite-plus filter 53 53 Air ionizer 54.5 60 60 54.5 64 5 125.5 Installation plate hanging section Remote controller holder Wireless…

4-2. Outdoor Unit

RAS-3M23GACV-E 600 A leg part 90 Ø11 × 17 U-shape hole (For Ø8 to Ø10 anchor bolt) 270 296 (ø6 hole pitch) 310 (Anchor bolt long hole pitch) 50 8-Ø6 hole (For fixing outdoor unit) Ø11 × 17 long hole (For Ø8 to Ø10 anchor bolt) 18 B leg part Fan guard 115.5 Hanger Valve cover 8 86.2 Charging port…

BLK

BLK HEAT EXCHANGER SENSOR (TC) CN03 (WHI) BLK 1 1 BLK BLK WHI RED 3 CN22 CN33 (WHI) Heat exchanger GRN & YEL 1 CN23 CN21 1 1 CN34 2 2 FUSE F01 AC 250V (RED) T3.15A CN10 (WHI) LINE FILTER DC5V DB01 DC12V MAIN P.C. BOARD (MCC-5020) TNR CN08 (WHI) POWER SUPPLY CIRCUIT Wireless Unit Assembly BLU FAN…

5-2. Outdoor Unit

6. SPECIFICATIONS OF ELECTRICAL PARTS

7. REFRIGERANT CYCLE DIAGRAM

7-1. Refrigerant Cycle Diagram INDOOR UNIT A To To C room B room Connecting pipe Thickness : 0.8 mm Ø9.52 : RAS-M10GKCVP-E RAS-M13GKCVP-E Ø12.7 : RAS-M16GKCVP-E Indoor heat exchanger T1 Temp. measurement To To C room B room Connecting pipe Thickness : 0.8 mm Ø6.35 Pressure measurement Gauge…

7-2. Operation Data

<Cooling> RAS-M14GAV-E, RAS-M14GACV-E Temperature condition (°C) Indoor Outdoor No.of operating units 1 unit Standard pressure P (MPa) Combinations of indoor units Surface temp. of heat exchanger Fan speed T1 (°C) T2 (°C) Indoor Outdoor Compressor revolution (rps) 10 — — 0.92 11 42 High Med. 37 13…

8. CONTROL BLOCK DIAGRAM

8-1. Indoor Unit RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E Indoor Unit Control Unit M.C.U. Heat Exchanger Sensor (Tc) Louver Motor Functions • Cold draft preventing Function Room Temperature Sensor (Ta) • 3-minute Delay at Restart for Compressor Infrared Rays Signal Receiver and Indication •…

8-2. Outdoor Unit (Inverter Assembly)

RAS-3M23GACV-E Outdoor air temp. Sensor Gas side pipe temp. Sensor Discharge temp. Sensor MCC-818 (SUB-P.C. B) M.C.U A unit send/receive circuit • Inverter outdoor frequency control • A/D converter function A unit P.M.V. • P.M.V. control Driver circuit of P.M.V. B unit P.M.V. B unit send/receive…

9. OPERATION DESCRIPTION

• 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…

1. Basic

operation Description 1. Operation control 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…

1. Basic

operation 2. Operating mode selection when performing 2-roomoperation Description 1) The outdoor unit operating mode conforms to the instructions of the indoor unit that was pressed first. 2) When combined operation consisting of cooling (dry) and heating, fan (air purification) and heating, or…

Description

1. Basic operation 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) Detects the room temperature (Ta) when the operation started. 2) Selects an…

2. Indoor fan

motor control <In cooling operation> (This operation controls the fan speed at indoor unit side.) The indoor fan (cross flow fan) is operated by the phasecontrol induction motor. The fan rotates in 5 stages in MANUAL mode, and in 5 stages in AUTO mode, respectively. (Table 1) Description UH H M+ M…

Description

Operation flow and applicable data, etc. 3. Outdoor fan motor control The blowing air volume at the outdoor unit side is controlled. 1) The operation command sent from the remote controller is Receiving the operation command from the controller of indoor processed by the indoor unit unit, the…

Description

5. Current release control This function prevents troubles on the electronic parts of the compressor driving inverter. This function also controls drive circuit of the compressor speed so that electric power of the compressor drive circuit does not exceed the specified value. 1) The input current of…

Description

Operation flow and applicable data, etc. 7. Louver control 1) Louver position This function controls the air direction of the indoor unit. • The position is automatically controlled according to the operation mode. • The set louver position is stored in memory by the microcomputer, and the louver…

8. ECO

operation When pressing [ECO] button on the remote controller, a quiet and mild operation is performed by reducing the fan speed and the compressor speed. <Cooling operation> This function operates the air conditioner with the difference between the set and the room temperature as shown in the…

10. Air purifying

control This function generates nagative ion while cleaning the air in the room. If air purifier-ON signal is received while the air conditioner stops, the air purifier starts operation, and if it is received while the air conditioner operates, the air conditioner and the air purifier start…

10. Air purifying

control [Detection of abnormality] 1. Purpose The air purifying control function is to alert the user to trouble in the ionizing or air purifying operation. 2. Description Trouble is determined to have occurred (indicated by the FILTER indicator) in the following four cases. 1) When a count of 1000H…

11. Discharge

temperature control 1. Purpose This function detects error on the refrigerating cycle or error on the compressor, and performs protective control. Td value 117°C 112°C 108°C 105°C 98°C Description Control operation Judges as an error and stops the compressor. Reduce the compressor speed. Reduce…

13. Clean operation

Description 1. Purpose The clean operation is to minimize the growth of mold, bacteria etc. by running the fan and drying so as to keep the inside of the air conditioner clean. Unit now performing cooling or dry operation Clean operation When the cooling or dry operation shuts down, the unit…

14. Clean operation

release Operation flow and applicable data, etc. Description Setting the clean operation release Add J04 of the indoor P.C. board assembly. * This cancels the auto restart function. Hold down the auto operation switch on the indoor unit for at least 3 seconds but not more than 10 seconds. * J04 will…

15. Select switch on

remote controller 1. Purpose This operation is to operate only one indoor unit using one remote controller. Press the operation button on the remote controller. YES Both indoor units start operation. Select “B” as the setting for one of the two indoor units and for the remote controller. (See below…

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…

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)…

9-5. Remote Controller and Its Fuctions

9-5-1. Parts Name of Remote Controller 11 Cancel button (CLR) 1 Infrared signal emitter Press this button to cancel the ON timer and OFF timer. (A receiving beep is heard.) Transmits signal to the indoor unit. 2 button Press the button to start operation. (A receiving beep is heard.) Press the…

9-5-2. Name and Functions of Indications on Remote Controller

[Display] All indications, except for the clock time indicator, are displayed by pressing the 1 Transmission mark 6 TIMER and clock time indicator This transmission mark indicates when the remote controller transmits signals to the indoor unit. The time setting for timer operation or the clock time…

9-6. 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…

10. INSTALLATION PROCEDURE

10-1. Safety Cautions For the rear left and left piping Hook 47 mm or more 1 Installation plate Wall Hook 140 mm or more 74 mm or more Hook Insert the cushion between the indoor unit and wall, and tilt the indoor unit for better installation work. 7 Mounting screw Do not allow the drain hose to…

10-2. Optional Parts, Accessories and Tools

10-2-1. Optional Installation Parts Part Code Parts name Q’ty Refrigerant piping Indoor unit name Liquid side (Outer diameter) Gas side (Outer diameter) RAS-B10GKVP-E, B13GKVP-E 6.35 mm 9.52 mm RAS-B16GKVP-E 6.35 mm 12.7 mm 1 ea. Y Z Shield pipe (for extension drain hose) (polyethylene foam, 6 mm…

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 UNF 20 threads per inch) • In order to…

10-3-2. Drilling a Hole and Mounting Installation Plate

10-3. Indoor Unit 10-3-1. Installation Place Drilling a hole When install the refrigerant pipes from the rear. The center of the pipe hole Pipe hole 65 42 mm • 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…

When the installation plate is directly

mounted on the wall 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 use anchor bolts. Drill the anchor bolt holes as illustrated in the above figure. 3.…

10-3-5. Piping and Drain Hose Installation

CAUTION • Be sure to refer to the wiring system diagram labeled inside the front panel. • Check local electrical regulations for any specific wiring instructions or limitations. Piping and drain hose forming • Since condensation results in machine trouble, make sure to insulate both the connecting…

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. Slit Fig. 10-3-16 4 mm Fig. 10-3-13 Left-hand connection with piping 2. Firmly insert…

10-3-7. Drainage

CAUTION 1. Run the drain hose at a downward sloped angle. • Bind the auxiliary pipes (two) and connecting cable with facing tape tightly. In case of leftward piping and rear-leftward piping, bind the auxiliary pipes (two) only with facing tape. NOTE : • Hole should be made at a slight downward slant…

10-4. Outdoor Unit

10-4-1. Optional Parts, Accessories and Tools Optional installation parts Part name Refrigerant piping *1 Specifications Q’ty Indoor unit name (Abbreviation) Liquid side (Outer diameter) Gas side (Outer diameter) RAS-M10GKCVP-E RAS-M13GKCVP-E 6.35 mm 9.52 mm RAS-M16GKCVP-E 6.35 mm 12.7 mm Putty, PVC…

10-5. Installation of Outdoor Unit

10-5-1. Installation Location • A place which provides enough space around the outdoor unit as shown in the figure. • A place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration. • A place where the operation noise and discharged air do not…

10-5-2. Fixing Bolt Arrangement of Outdoor

Unit 10-5-3. Refrigerant Piping Connection Flaring 1. Cut the pipe with a pipe cutter. 600 mm Suction side 90˚ Roughness Warp 310 mm Obliquity Fig. 10-5-4 Diffuser 2. Insert a flare nut into the pipe, and flare the pipe. Fig. 10-5-2 • Secure the outdoor unit with fixing bolts and nuts if the unit is…

Tightening Connection

Align the centers of the connecting pipes and tighten the flare nut as much as possible with your fingers. Then tighten the nut with a wrench and torque wrench as shown in the figure. Half union Flare nut Externally threaded side Internally threaded side Use a wrench to secure. Use a torque wrench…

10-5-4. Evacuating

Use a vacuum pump After the piping has been connected to the indoor unit, perform the air purge. AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using a vacuum pump. Do not use the refrigerant in the outdoor unit. For details, see the vacuum pump manual. Compound pressure…

10-5-5. Wiring Connection

1. Remove the valve cover, the electric parts cover and the cord clamp from the outdoor unit. 2. Connect the connecting cable to the terminal as identified by the matching numbers on the terminal block of indoor and outdoor unit. 3. Insert the power cord and the connecting cable fully into the…

10-6. Grounding

10-7-1. Miswiring (Mis-piping) Check This air conditioner must be grounded without fail. Grounding is necessary not only to safeguard against the possibility of receiving an electric shock but also to absorb both the static, which is generated by high frequencies and held in the surface of the…

10-7-2. Miswiring (Mis-piping) Check by LED Indication

10-8. Useful Functions

11. HOW TO DIAGNOSE THE TROUBLE

The pulse modulating circuits are mounted to both indoor and outdoor units. Therefore, diagnose troubles according to the trouble diagnosis procedure as described below. (Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.) Table 11-1…

11-1-3. Operation Which is not a Trouble

(Program Operation) 11-1. First Confirmation 11-1-1. Confirmation of Power Supply 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…

11-3. 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 condition and indicates the information of the self-diagnosis on the display of…

11-3-2. Caution at Servicing

1. After servicing, press the START/STOP button to return to the normal mode. 2. After servicing by the check code, turn off breaker of the power supply, and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status. However, the check codes are not…

Operation of diagnosis function

Block distinction Check code Block Outdoor P.C. board Check code Air conditioner status Cause of operation Remarks Judgment and action Inverter over-current protective circuit operates. (Short time) All off Displayed when error is detected. Even if trying operation again, all operations stop…

11-4. Judgment of Trouble by Every Symptom

11-4-1. 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 (F01) blown? Operation Check…

(3) Only the indoor motor fan does not operate

<Primary check> 1. Is it possible to detect the power supply voltage (AC220–240V) between and 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…

(4) Indoor fan motor automatically starts to rotate by turning on power supply

<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. Remove the front panel.…

(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. Press the START/STOP button. The unit does not beep at all. Operation lamp on indoor unit is not indicated. NO Is transmission mark indicated? YES Is receiver on indoor unit exposed…

11-4-2. Wiring Failure (Interconnecting 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 following diagram. NOTE: • Measurement should be performed 2 minutes and 30 seconds after starting…

11-5. Trouble Diagnosis by Outdoor LED

For the outdoor unit, the self-diagnosis is possible by LED (Yel) and four LEDs (Red). • LED (Yel) (D800) and LEDs (Red) (D801 to D804) are provided on the sub-control board under surface of the inverter, and as shown below, they are checked from the wiring port when removing the wiring cover. LED…

11-6. Troubleshooting

11-6-1. How to Check Whether the Air Purifier is Good or Not Turn off the power breaker once, and turn on again after 10 seconds. Does the OPERATION indicator flash? NO To item “Power supply is not turned on” Primary check YES Turn off the power breaker and remove CN34 (Micro switch connector).…

11-6-2. How to Check Whether the Minus Ion Generator is Good or Not

Turn off the power breaker once, and turn on again after 10 seconds. Does the OPERATION indicator flash? NO To item “Power supply is not turned on” Primary check YES Turn off the power breaker and remove CN34 (Micro switch connector). Short-circuit between 1 and 2 pin of CN34 at PC side, and turn on…

11-7. How to Diagnose Trouble in Outdoor Unit

11-7-1. Summarized Inner Diagnosis of Inverter Assembly Table 11-7-1 Diagnosis/Process flowchart Item Contents Preparation Turn “OFF” the power supply breaker, and remove 3P connector which connects inverter and compressor. Check • Check whether 25A fuse on the control board assembly is blown or…

Diagnosis/Process flowchart

A B Item Contents Check Check winding resistance between phases of compressor, and resistance between outdoor frames by using a tester. C Check winding of compressor. NG OK NG Check fan motor position detect signal. Replace compressor. Replace outdoor fan motor. Replace control board assembly. Check…

(3) Check procedures

Table 11-8-1 No. Procedure Check points 1 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. Check whether or not the fuse (F01) is blown. Impulse voltage was applied or the indoor fan motor…

GND +12V +5V [1] Sensor characteristic table 100 Resistance value (kW) 90 80 TD 70 TD : Discharge temp. sensor TA : Room temp. sensor TC : Heat exchanger temp. sensor TO : Outdoor temp. sensor TGa : A room Gas side temp. sensor TGb : B room Gas side temp. sensor TGc : C room Gas side temp. sensor…

11-8-3. Indoor Unit (Other Parts)

No. Part name 1 Room temp. (TA) sensor Heat exchanger (TC) sensor Checking procedure Disconnect the connector and measure the resistance value with tester. (Normal temp.) Temperature Sensor TA, TC (kΩ) 10°C 20°C 25°C 30°C 40°C 20.7 12.6 10.0 7.9 4.5 2 Remote controller Refer to 11-4-1. (5). 3 Louver…

11-8-5. Checking Method for Each Part

Part name Checking procedure 1 Electrolytic capacitor (For raising pressure, smoothing) 1. Turn OFF the power supply breaker. 2. Discharge all three capacitors completely. 3. Check that safety valve at the bottom of capacitor is not broken. 4. Check that vessel is not swollen or exploded. 5. Check…

11-9. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad

1. Symptom • Outdoor fan motor 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…

12. HOW TO 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)…

Procedures

Remarks 1 Front panel 4) Press “ ” part under the front panel and remove hooks of the front panel from the installation plate. Pull here Installation plate Press here Press here Front panel Press 5) Remove the front panel fixing screws. (2 pcs.) 6) Press the electric parts box with the right thumb…

Procedures

2 High voltage generator 1) Follow to the procedure in the item 1 . 2) Remove the drain guide. 3) To remove the air ionizer from the back body, pull it toward you while pressing down on its left and right claws. Disconnect the two leads (black) connected to the air ionizer from where they are fitted…

Procedures

3 Electric parts box assembly 1) Follow the procedure up to 4) 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 (5P) for the fan motor and connector (5P) for the louver motor from the electric parts box…

Procedures

Remarks 4 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.) Slide the horizontal louver leftward 5 Evaporator (Heat exchanger) 1) Follow to the procedure in the item…

Part name Bearing Procedures 1) Follow to the procedure in the items 1 . 2) Remove the two fixing screws used to secure the left edge panel of the heat exchanger, and remove the two screws used to secure the bearing base. Remarks Screw Bearing base Screw 3) Raise the left side of the heat exchanger…

Part name Fan motor Procedures 1) Follow to the procedure in the item 3 . 2) Loosen the set screw of the cross flow fan. 3) Remove two fixing screws of the motor band (Right), and then remove the motor band (Right). 4) Pull the fan motor outward. In assembling work, install the fan motor as follows.…

Procedures

8 Cross flow fan <Caution at reassembling> 1) At assembling work of the bearing base, check that the drain pipe is surely incorporated in the back body. (Otherwise, water leak is caused.) 2) To incorporate the fan motor, remove the fan motor rubber (at shaft core side), incorporate the motor into…

12-2. Microcomputer

No. Part name 1 Common procedure Procedure Remarks 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. Replace terminal block, microcomputer ass’y and the P.C. board ass’y. <P.C. board…

12-3. Outdoor Unit

No. Part name 1 Common procedure Procedure 1. Detachment 1) Stop operation of the air conditioner, and turn off the main switch of the breaker for air conditioner. 2) Remove the valve cover. (ST1TØ4 × 10L 1 pc.) • After removing screw, remove the valve cover pulling it downward. 3) Remove wiring…

Inverter assembly Procedure 1. Detachment 1) Perform work of items 1. of 1 and 2 . 2) Remove screw (ST1TØ4 × 10L 1 pc.) of the upper part of the front cabinet. • If removing the inverter cover in this condition, P.C. board can be checked. • If there is no space in the upper part of the upper…

Procedure

4 Control board assembly 1. Disconnect lead wires and connectors connected from the control board assembly to other parts. 1) Lead wires • Connection with terminal block : 6 wires (Red, Orange, Pink, Black and two White wires) • Connection with compressor : Disconnect the connector (3P). •…

;; No. Part name Procedure Remarks 5 Rear cabinet 1) Perform work of item 1. of 1 , 2 and 3 . 2) Remove fixed screws fixing to the bottom plate. (ST1TØ4 × 10L 2 pcs.) 3) Remove fixed screws fixing to the heat exchanger. (ST1TØ4 × 10L 2 pcs.) 4) Remove fixed screw fixing to the valve mounting plate.…

Procedure

9 Pulse motor valve coil 1. Detachment 1) Perform step 1. in 2 , all the steps in 3 and 1. in 5 . 2) Release the coil by pulling it up from the electronic control valve body. Remarks Coil anti-turn lock 2. Attachment 1) When assembling the coil into the valve body, ensure that the coil anti-turn…

Procedure

11 Replacement of temperature sensor for servicing only 1) Cut the sensor 100 mm longer than old one. 2) Cut the protective tube after pulling out it (200 mm). 3) Move the protective tube toward the thermal sensor side and tear the tip of lead wire in two then strip the covering part. 4) Pass the…

13. EXPLODED VIEWS AND PARTS LIST

13-1. Indoor Unit (1) 225, 221, 222, 218, ∗ The parts in the following parts list are conformed to RoHS. Therefore be sure to use the following parts for repairing and replacing. Location No. Part No. 43005633 43005610 4301V052 43080512 43080521 43009675 43009682 4302C067 4302C063 4306A024 43039363…

Indoor Unit (2)

13-2. Outdoor Unit

11,14,31,34 12,15,32,35 13,16,33,36 37, 38 18 Location No. Part No. Description Location No. Part No. Description 43005638 43005636 43005637 4301V030 43042491 4301V029 43062262 4301V021 43041635 43043755 37546845 43046442 37546846 43147196 43047401 43147195 37546848 43046450 43158192 43050407…

This product is compliant with Directive 2002/95/EC, and cannot be disposed as unsorted municipal waste. TOSHIBA CARRIER CORPORATION 2 CHOME 12-32, KONAN, MINATOKU, TOKYO, 108-0075, JAPAN Copyright © 1999 to 2005 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.

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