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Toshiba RAV-SM2244AT8ZG-E, RAV-SM2804AT8ZG-E, RAV-SM2804AT8Z-E service manual Air-Conditioner

Models: RAV-SM2244AT8Z-E RAV-SM2804AT7ZG RAV-SM2804AT7 RAV-SM2804AT7Z RAV-SM2244AT7 RAV-SM2804AT8-E RAV-SM2244AT7Z RAV-SM2244AT7ZG RAV-SM2804AT8Z-E RAV-SM2244AT8ZG-E RAV-SM2804AT8ZG-E

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FILE NO. A09-004

SERVICE MANUAL

AIR-CONDITIONER

SPLIT TYPE

OUTDOOR UNIT

<DIGITAL INVERTER>

RAV-SM2244AT8-E RAV-SM2804AT8-E RAV-SM2244AT8Z-E RAV-SM2804AT8Z-E RAV-SM2244AT8ZG-E RAV-SM2804AT8ZG-E

RAV-SM2244AT7 RAV-SM2244AT7Z RAV-SM2244AT7ZG

RAV-SM2804AT7 RAV-SM2804AT7Z RAV-SM2804AT7ZG

R410A

PRINTED IN JAPAN, Jun, 2009 ToMo

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Toshiba RAV-SM2244AT8ZG-E, RAV-SM2804AT8ZG-E, RAV-SM2804AT8Z-E, RAV-SM2244AT7ZG, RAV-SM2804AT7 service manual Air-Conditioner

Contents

AIR-CONDITIONER Contents Replacement Explanation of illustrated marks Explanation of indicationsConfirmation of warning label on the main unit Indication Explanation Never recover the refrigerant into the outdoor unit ∗ For details, refer to the parts listCatch the inner wires Do not modify the products Metal section Earth position Check the following items after reinstallationLimit even if the refrigerant leaks After repair work has finished, check there is no trouble Pipe Materials Safety Caution Concerned to New RefrigerantCopper pipe Piping Flare nut Used tool Usage General tools Conventional tools can be used RAV-SM2244AT series Simultaneous twin Combination Pattern Indoor Unit / Outdoor UnitSimultaneous triple Simultaneous double twin RAV-SM2804AT series Branch kit RAV-SM2244AT series Branch kit Way Cassette Type Indoor UnitTwin type Duct Type Twin type Ceiling Type Twin type Way Cassette Type Triple type Duct Type Triple type Ceiling Type Triple type High Wall Type Triple type Way Cassette Type Double twin type RAV-SM562MUT-E Compact 4-Way Cassette 600 × 600 Type Double twin type RAV-SM564SDT-E Slim Duct Type Double twin type Duct Type Double twin type Ceiling Type Double twin type High Wall Type Double twin type 2244AT8-E 2804AT8-E 2244AT7 2804AT7 Model Outdoor unit RAV-SM2244AT8 Z ZG -E, RAV-SM2804AT8 Z ZG -E Operation characteristic curve Digital InverterRAV-SM2244AT7 Z ZG, RAV-SM2804AT7 Z ZG Cooling Heating Capacity variation ratio according to temperature Construction Views External Views Joint pipe RBC-DTWP101E Simultaneous Double Twin Branch pipeModel ’ty Liquid side Gas sideRBC-TRP100E Simultaneous Triple Gas side socket Gas side 25.4 15.9 Liquid side 12.7 RBC-TWP101E Simultaneous Twin Branch pipe Outdoor Unit Refrigeranting Cycle Diagram RAV-SM2244 series Systematic diagram of refrigerating cycleRAV-SM2804 series Wiring Diagram Parts name Type Specifications Specifications of Electrical Parts Piping Materials and Joints Used Safety During Installation/ServicingCopper Pipes Joints Flare Processing Procedures and PrecautionsProcessing of Piping Materials Flare and flare nut dimensions for R410A 3 Dimensions related to flare processing for R410A / R22Flare and flare nut dimensions for R22 R410A R22 R410A, R22 Clutch type Wing nut type Nm kgfm Flare Connecting Procedures and PrecautionsWrenches available on the market Required Tools 1 Configuration of refrigerant charging Flux Reason why flux is necessary Low temperature brazing fillerMaterials for Brazing Silver brazing filler Phosphor bronze brazing filler Types of flux Characteristics required for fluxPiping materials for brazing and used brazing filler/flux Brazing Restricted Items to Use the Existing Pipes Basic Conditions Needed to Reuse the Existing PipeBranching Pipe for Simultaneous Operation System Curing of Pipes Existing pipe SW Switch Final Installation Checks Handling of Existing Pipe Recovering Refrigerant Outdoor Unit Control Circuit Configuration and Control SpecificationsPrint Circuit Board, MCC-1596 Compressor Ipdu CN700 Blue CN500 Red Print Circuit Board, MCC-1597 Fan Motor IpduCN504 Blue F500 Print Circuit Board, MCC-1599 Interface CDB Print Circuit Board, MCC-1600 Noise Filter Outline of Main Controls Discharge temperature release controlPMV Pulse Motor Valve control Cooling fan control Outdoor fan revolution number controlHeating fan control Fan Taps Revolution number Allocation rpm Short interrupted operation preventive control Defrost controlElectrical current release control High-pressure switch/Compressor case thermostat control Heat sink temperature detection controlElectrical current release value shift control Over-current protective control 12. SV2 valve control Oil recovery control To ˚C Coil heating control Summary of Troubleshooting TroubleshootingBefore troubleshooting Troubleshooting procedure Trouble Confirmation of lamp display Wireless remote controller type Outline of judgment TroubleshootingLamp indication Cause of trouble occurrence Lamp indication Check code Cause of trouble occurrence Lamp indication Check code Others Other than Check Code Monitor Function of Remote Controller Switch Way valve inverse error Check Code List Outdoor Representative defective position Cause of operation Status Error mode detected by indoor unit Series Error mode detected by outdoor unit H03 Current detection circuit error Stop Power supply error of remote controller, Indoor LED display on outdoor P.C. board Dip switch setup Diagnostic Procedure for Each Check Code Outdoor UnitLatest error display Error display, which occurs at present Display Heat exchanger temp. sensor TL error → Display Display 2 Heat exchanger temp. sensor TE errorF07 Display Display 2 Heat exchanger temp. sensor TL error F13 Display 1 Display 2 Heat sink temp. sensor TH error F12 Display Display 2 Suction temp. sensor TS error H01 Display 1 Display 2 Compressor break down F31 Display 1 Display 2 Eeprom error H04 Display 1 Display 2 Case thermostat operation H03 Display Display 2 Current detection circuit error L10 Display Display 1 Display 2 Unset model type → Refer to L10 column Display Display 2 Communication error between MCU P04 Display High pressure SW system error Display Display 2 High pressure protective operation → Display Case thermostat operation → Refer to H04 column P19 Display Way valve inverse error P07 Display Heat sink overheat errorP15 Display Gas leak detection Cooling season Single operation check for outdoor fan Position detection circuit errorP26 Display 2 Short-circuit of compressor drive element TA, TC, TCJ, TE, TS, to sensors Temperature sensorTD, TL sensors Representative value Calling of Error History Setup AT Local Site and OthersGroup Control Operation By feed unit Automatic address judgment Indoor unit power-ON sequenceInitial communication Usual regular communication Defrost control Function Set position Control contents Operation part Specifications Operation contentsDisplay part Others Selection of LED display SW800, SW803 operation Switch Function / Contents ReferDisplay selection list ¥¥ll¡ Error display Display SetupPressure Kg/cm²G SW804 Operation when pushdown button switch SW801 is pushed Specific operation for maintenance check SW801, SW804Specific operation For check RY703, CN703 check Address Setup Procedure Address Setup System Configuration Address Setup & Group ControlTerminology Only turning on source power supply Automatic completion Automatic Address Example from Unset Address No miswiringExample Standard One outdoor unit Single Twin Triple Wiring diagram Remote Controller WiringSimultaneous twin system Simultaneous triple and double twin system Address Setup Manual setting from remote controller To know the position of indoor unit body by address Confirmation of Indoor Unit No. PositionButton Button if the unit stops Part name Object Contents of check Contents of maintenance Maintenance/Check list Contents New Refrigerant Air Conditioner Installation Connect the connecting wire correctly When using the conventional piping Tools/equipment Use How to use tools/equipmentWhen using general copper pipes Flare nuts and flare machining 100 Parts name ’ty 101 102 Total length Branch piping Indoor-outdoor H Allowable pipe length mUpper Maximum SM2244 SM2804 Pipe diameter mm 104 Connected, and fix wires securely so that the external Using the specified wires, ensure that the wires areTension to the wires does not affect the connecting Be sure to connect the earth wire grounding work Check the following before starting a test run 106 8 EarthingThat all pipes are connected securely without leaks That the valve is open SW802 107Reference outside Wall thickness Material Diameter mm Placement location Term Curing manner Cause Display mode108 Flare nut width H Existing pipe SW Setting the jumper wires and DIP switches Replacement of the Service P.C. Board 4316V392 MCC-1599Model switching J800 to J803 110 Exchanging Procedure of Compressor Outline HOW to Exchange CompressorExchange of Compressor 111 112 DetachmentsRAV-SM224, RAV-SM280 series Detachment 113 No. Part name Procedure 114 115 116 Part name Procedure Remarks 117 118 Temporary Suspended State Inverter Assembly front 119 Temporary suspended state Inverter Assembly IpduCompressor 1. Detachment Fan motor 1. Detachment 120 Compressor terminal 121 122 Fan guard 1. Detachment 123 25, 26 22, 23 47, 55 33, 34 124 Exploded Views and Parts List Location Model name Description RAV-SM2244 RAV-SM2804 125 704 Inverter Assembly126 127 128 25, 26 22, 23 47, 55 33, 34 AT7 AT7Z AT7ZG 129 130 712 Location Model name 1312244AT7ZG 2804AT7ZG Check of Concentration Limit Toshiba Carrier Corporation