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Toshiba RAV-M240A-E Service Manual

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FILE NO. A10-9506

SERVICE MANUAL

AIR-CONDITIONER
SPLIT WALL TYPE
RAV-M240A-E
(Combination with RAS-09EK)
RAS-09EK
Unit C
Unit A
Unit B
Unit D
RAV-M240A-E
PRINTED IN JAPAN Jan, 1996
S

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Summary of Contents for Toshiba RAV-M240A-E

  • Page 1: Service Manual

    FILE NO. A10-9506 SERVICE MANUAL AIR-CONDITIONER SPLIT WALL TYPE RAV-M240A-E (Combination with RAS-09EK) RAS-09EK Unit C Unit A Unit B Unit D RAV-M240A-E PRINTED IN JAPAN Jan, 1996...

  • Page 2: Table Of Contents

    6. UNIT INSTALLATION .......................11 6-1. Service Space ........................... 11 7. OPERATIONAL MATRIX OF ELECTRICAL PARTS ............12 8. TROUBLESHOOTING CHART FOR RAS-09EK/RAV-M240A-E ........14 8-1. What to be Prechecked First ......................14 8-2. Primary Judgement of Trouble Sources ................... 15 8-3.

  • Page 3: Specifications

    1. SPECIFICATIONS Model RAV-M240A-E Item 2 indoor unit 4 indoor unit Operation Unit A or B C or D BTU/h 12000 6000 kcal/h 6000 6000 Cooling capacity BTU/h 24000 24000 Phase Power source 220-240 Power consumption Cooling 1.86 2.45 Power factor Cooling 97.4...
  • Page 4 Note 1: • Cooling capacity is based on the following temperature conditions. [Condition A] 27°C DB (80°F DB) Evaporator air inlet temperature 19.5°C WB (67°F WB) Condenser air inlet temperature 35°C DB (95°F DB) Note 2: • These mean equivalent length. Note 3: •...

  • Page 5: Construction Views

    2. CONSTRUCTION VIEWS 2-1. Outdoor Unit RAV-M240A-E Φ Φ Φ Φ Fig. 2-1 – 5 –...

  • Page 6: Wiring Diagram

    3. WIRING DIAGRAM Fig. 3-1 – 6 –...
  • Page 7 Fig. 3-2 Table 3-1 Symbol Name Model name CM1, 2 Compressor PH160X2-4L Fan motor STF-200-63B RCc1, 2 Running capacitor (Compressor) MT-40MP356W Running capacitor (Fan motor) EAG45M355UF1 51C1, 2 Overload relay MRA99420 52C1, 2 Magnetic contactor VC20FA 3P AC240V 43A1, 2 Relay LY2F-AC220-240V 43B1, 2...

  • Page 8: Specifications Of Electrical Parts

    4. SPECIFICATIONS OF ELECTRICAL PARTS Parts name Type Specifications Output 1.1 kW, 2 pole, 1ø, 220-240V, 50 Hz Compressor 1, 2 PH160X2-4L Winding resistance: Main coil 2.2Ω, Aux. coil 3.5Ω Fan motor STF-200-63B Output 63W, 6 pole, 1ø, 220-240V, 50 Hz Magnetic contactor VC20FA AC 240V...

  • Page 9: Refrigerant Piping Diagram

    5. REFRIGERANT PIPING DIAGRAM RAV-M240A-E Fig. 5-1 – 9 –...

  • Page 10: Refrigerant Piping

    Do not carry out this air purge by using the refrig- erant filled in the outdoor unit. • To handle valves, a 5 mm hexagon wrench is 5-1-5. Additional Refrigerant Quantities needed. Table 5-2 Model RAV-M240A-E Addition per meter No need – 10 –...

  • Page 11: Unit Installation

    6. UNIT INSTALLATION 6-1. Service Space Ensure that there is sufficient space around the outdoor unit for installation and servicing. Fig. 6-1 • Do not install in a place that can increase the vibration and amplify the noise level of the units. •...

  • Page 12: Operational Matrix Of Electrical Parts

    7. OPERATIONAL MATRIX OF ELECTRICAL PARTS RAV-M240A-E Indoor unit PC Parts board relay 52C1 52C2 43A1 43B1 43A2 43B2 43C1 43C2 Operating indoor unit M240A-E Power ON No indoor unit operating : Indoor unit cooling operation relay output 52C1, 52C2 : Compressor magnetic contactor...
  • Page 13 Parts 20SRA1 20SRB1 20SRC1 20SRD1 20SRA2 20SRB2 20SRC2 20SRD2 Operating (Cycle 1) (Cycle 2) indoor unit M240A-E Power ON No indoor unit operating ∆ ∇ ∆ ∇ ∆ ∇ ∆ ∇ ∆ ∇ ∆ ∇ ∆ ∇ ∆ ∇ ∆ ∇...

  • Page 14: Troubleshooting Chart For Ras-09Ek/Rav-M240A-E

    8. TROUBLESHOOTING CHART FOR RAS-09EK/RAV-M240A-E Troubleshooting Procedures: • Following details of “What to be prechecked first”, make sure of the basic items. • When there is no trouble corresponding to above, check in detail the faulty parts following “How to judge faulty parts by symptoms”...

  • Page 15: Primary Judgement Of Trouble Sources

    8-2. Primary Judgement of Trouble Sources 8-2-1. Role of Indoor Unit Controller 8-2-2. Display of Abnormalities and Judgement of the Abnormal Spots The indoor unit controller receives the operation com- mands from the remote control and assumes the fol- The indoor unit of this machine observes the opera- lowing functions.
  • Page 16 Self-diagnosis with remote controller 2) Selecting ordinary mode With the indoor unit controller, self-diagnosis of Push the all clear button (ACL) on the rear protective circuit action can be done by turning bottom of the wireless remote controller by a the remote controller operation into service mode, tip of pencil for more than 3 seconds.
  • Page 17 <Self-diagnosis by check codes> 2) Remote control key operation under the ser- vice mode is conducted by ON/OFF or TEMP . 1) The self-diagnosis by the check codes is con- ducted under the block displays of item B-E. The remote control display by each key op- eration is varied as shown below.
  • Page 18 Table 8-5 Block level Diagnosis function Judgement and action Check Check Air conditioner Block Symptom Condition code code status Indoor PC Thermo sensor Continued Indicated when • Check thermo sensor. board short/break. operation detected abnor- • If it is OK, check PC mal.

  • Page 19: Troubleshooting Flowcharts

    8-3. Troubleshooting Flowcharts 8-3-1. Power cannot be Turned on (No Operation at All) <Preliminary checks> (1) Is the supply voltage normal? (2) Is the connection to the AC output O.K.? (3) Are the connection of the primary side and the secondary side of the power transformer inserted into the PC board? (4) Is the FUSE (F01) blown? Fig.
  • Page 20 8-3-2. Relay RY07, RY08 does not Operate. Louver is not controlled automatically. Note: • When wiring to the thermal fuse has been broken, the TIMER lamp and OPERATION lamp will flash with 5 Hz. 8-3-3. Only the Indoor Fan does not Operate. <Preliminary checks>...

  • Page 21: Test Points On The Pc Board And List Of Voltage Values

    8-3-4. Compressor does not Operate. < Preliminary checks > (1) Is the temperature set on the remote control higher than the room temperature in cool operation? (2) Is contact of the crossing wiring O.K.? < Check procedure > Ω Ω Ω...

  • Page 22: How To Check The Remote Control (Including The Indoor Pc Board)

    8-5. How to Check the Remote Control (Including the Indoor PC Board) – 22 –...
  • Page 23 8-5-1. How to Check the PC Board 2) The PC board consists of the following 4 parts: (1) Operating precautions a. Main PC board part: 1) When removing the front panel or the PC Power relay, indoor fan motor drive circuit and board, be sure to disconnect the power plug control circuit, C.P .U.
  • Page 24 Procedure Check point (Symptom) Trouble cause Push the START/STOP button once to 1. The compressor does not operate. • The temperature of the indoor set in operation mode. heat exchange unit is extremely low. 1.Setting the anti-restart timer 2. The OPERATION lamp flashes. •...

  • Page 25: Pc Board Layout

    8-6. PC Board Layout Top view Bottom view – 25 –...

  • Page 26: Exploded Views And Parts List

    9. EXPLODED VIEWS AND PARTS LIST – 26 –...
  • Page 27 Location Part Location Part Description Description 43120168 Fan, Propeller 43154135 Relay 43143701 Condenser 43155146 Capacitor, Electrolytic 43041728 Compressor, AC 220/240V, 43046229 Packed Valve, 3/8 50 Hz, PH160X2-4L 43046228 Packed Valve, 6.35 43154139 Magnetic-Switch 43145103 Dryer 43160479 Terminal, Block, 2P 43119390 Hanger 43160480 Terminal, Block, 6P 43146443 Solenoid Coil...
  • Page 28 TOSHIBA CORPORATION 1–1, SHIBAURA 1– CHOME, MINATO – KU, TOKYO 105 – 01, JAPAN...

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