Manuals / Toshiba / Household Appliance / Air Conditioner

Toshiba RAV-SM2804AT7ZG, RAV-SM2804AT8ZG-E, RAV-SM2244AT8ZG-E, RAV-SM2804AT8Z-E, RAV-SM2244AT7ZG 75

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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Page 75

– 75 –

Check

Outdoor

Check and troubleshooting

code

LED display

(Item without special mention Indicates part of outdoor unit.)

[P04]

C

Heating operation

NO

Are connections of

NO

Does the heating indoor fan

connectors,capacitors

normally operate?

and fan motor normal?

YES

YES

Is there any element which

YES

blocks indoor heat exchanger?

Elimination of

Repair

Filter clogging

blocking element

defective position.

Clogging of heat exchanger

Short circuit

NO

NO

Are characteristics

Clogging by refrigerant

overcharge/Pipe breakage/

of TC and TCJ sensor

Abnormal overload

resistance value normal?

YES

Check indoor P.C. board

Replace

Defective →

Replace

TC or TCJ sensor.

<Display 1>

<Display 2>

[Case thermostat operation] → Refer to [H04] column.

¡

¡

¡

l

l

l

¡

¥

l

l

l

l

<Display 1>

<Display 2>

[Power supply error (Vdc)] →

Refer to [P05] column.

¡

¡

¡

l

l

l

¡

¥

¡

l

¡

¥

<Display 1>

<Display 2> [High pressure protective operation] →

Refer to [P20] column.

¡ ¡

¡¥

l l

¡¥

¡l

¡l

– 75 –

Image 75

Toshiba RAV-SM2804AT7ZG, RAV-SM2804AT8ZG-E, RAV-SM2244AT8ZG-E, RAV-SM2804AT8Z-E, RAV-SM2244AT7ZG, RAV-SM2804AT8-E 75

Contents

AIR-CONDITIONER OUTDOOR UNITDIGITAL INVERTER SERVICE MANUALCONTENTS REPLACEMENT OF Mark SAFETY CAUTIONIndication Explanation– 5 – – 6 – 3.Pipe Materials • New Refrigerant R410A1. Safety Caution Concerned to New Refrigerant 2.Cautions on Installation/ServiceGeneral tools Conventional tools can be used 4.Tools<RAV-SM2804ATseries> Simultaneous twin RAV-SM2244ATseries Simultaneous twinSimultaneous triple Simultaneous double twinRAV-SM2804ATseries – 10 –RAV-SM2244ATseries Branch kit<Twin type> 1. SPECIFICATIONS1-1.Indoor Unit 1-1-1. 4-WayCassette Type1-1-2.Duct Type <Twin type> – 12 –1-1-3.Ceiling Type <Twin type> – 13 –1-1-4. 4-WayCassette Type <Triple type> – 14 –1-1-5.Duct Type <Triple type> – 15 –1-1-6.Ceiling Type <Triple type> – 16 –1-1-7.High Wall Type Triple type – 17 –1-1-8. 4-WayCassette Type Double twin type – 18 –RAV-SM562MUT-E – 19 –Indoor unit RAV-SM562MUT-E1-1-10.Slim Duct Type <Double twin type> – 20 –1-1-11.Duct Type <Double twin type> – 21 –1-1-12.Ceiling Type <Double twin type> 1-1-12.High Wall Type Double twin type – 23 –– 24 – 1-2.Outdoor Unit<Heating> RAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -ERAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZG Cooling<Cooling> – 26 –RAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -E RAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZG2-1.Outdoor Unit 2. CONSTRUCTION VIEWS EXTERNAL VIEWS<Joint pipe> – 28 –RBC-DTWP101ESimultaneous Double Twin Branch pipeGas side socket <Gas side><Liquid side> RBC-TRP100ESimultaneous Triple<Joint pipe> – 30 –RBC-TWP101ESimultaneous Twin <Branch pipe>RAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZG 3. OUTDOOR UNIT REFRIGERANTING CYCLE DIAGRAM– 31 – RAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -ESystematic diagram of refrigerating cycle RAV-SM2244seriesRAV-SM2804series 4-1.Outdoor Unit 4. WIRING DIAGRAMRAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZG 5. SPECIFICATIONS OF ELECTRICAL PARTS5-1.Outdoor Unit RAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -E6-2-1.Piping Materials and Joints Used 6-1.Safety During Installation/Servicing6-2.Refrigerant Piping Installation 6. REFRIGERANT R410ATable 6-2-1Thicknesses of annealed copper pipes 1.Flare Processing Procedures and Precautions1.Joints 6-2-2.Processing of Piping MaterialsTable Fig. 6-2-1Flare processing dimensionsFlare and flare nut dimensions for R410A Flare and flare nut dimensions for R22Tightening torque 2.Flare Connecting Procedures and PrecautionsNominal Outer diameter6-3-1.Required Tools Fig. 6-4-1Configuration of refrigerant charging6-3.Tools 6-4.Recharging of Refrigerant1.Silver brazing filler 3.Low temperature brazing filler6-5-2.Flux 1.Reason why flux is necessary 6-5-1.Materials for BrazingNever use gas other than Nitrogen gas 2.Characteristics required for flux3.Types of flux 6-5-3.BrazingIf the definite conditions can be cleared 6-6-2.Restricted Items to Use the Existing Pipes6-6-4.Curing of Pipes Instruction of Works– 43 – 6-6-5.Final Installation Checks– 44 – Cautions for using existing pipe6-6-7.Recovering Refrigerant 6-6-6.Handling of Existing Pipe– 45 – 7-1.Outdoor Unit Control– 46 – 7-1-2.Print Circuit Board, MCC-1597Fan Motor IPDU– 47 – 7-1-3.Print Circuit Board, MCC-1599Interface CDB– 48 – 7-1-4.Print Circuit Board, MCC-1600Noise Filter2.Discharge temperature release control 7-2.Outline of Main Controls1.PMV Pulse Motor Valve control 3-2Heating fan control 3.Outdoor fan revolution number control– 50 – 3-1.Cooling fan control4.Defrost control 5.Short interrupted operation preventive control6.Electrical current release control 11.High-pressurerelease control 7.Heat sink temperature detection control8.Electrical current release value shift control 9.Over-currentprotective control13.Oil recovery control 12.SV2 valve control– 53 – – 54 – 14.Coil heating control2. Troubleshooting procedure 8. TROUBLESHOOTING8-1.Summary of Troubleshooting 1. Before troubleshooting– 56 – 1. Before troubleshooting2.Troubleshooting procedure <Wireless remote controller type>8-2-1.Outline of judgment 8-2.TroubleshootingCause of trouble occurrence – 58 –Lamp indication Check code– 59 – 8-2-2.Others Other than Check CodePage Page – 62 – Cause of operation Error mode detected by indoor unitOperation of diagnostic function Judgment and measures– 64 – Error mode detected by outdoor unitIndoor unit Operation of diagnostic functionCheck code Judgment and measures– 66 – LED display on outdoor P.C. board Dip switch setup<Latest error display> <Error display, which occurs at present>Page – 69 – – 70 – – 71 – – 72 – ¡l l l – 74 – – 75 – – 76 – Outdoor Check and troubleshooting– 77 – Check– 78 – TA, TC, TCJ, TE, TS, TO sensors Temperature sensorTA, TC, TCJ, TE, TS, TO sensors TD, TL sensorsREQUIREMENT <Contents>Procedure 4 seconds or more to call the service check modenIndoor unit power-ONsequence – 82 – 9-3.Outdoor UnitDisplay part D805 D804 D803 D802 D801 D8001.Outline Operation part1Display selection list 9-3-3.Others1.Selection of LED display SW800, SW803 operation – 84 –lllll¡ lllll¡ – 87 – <Specific operation>SW804 SW804 – 88 –10-1.Address Setup Procedure 10. ADDRESS SETUP10-2.Address Setup & Group Control 10-2-1.System Configuration<Terminology> Example – 91 –Change is necessary – 92 –Simultaneous triple and double twin system 10-3.Remote Controller WiringWiring diagram Simultaneous twin system2, 5, 3, 6, 9 4, 7,1 2 3 4 5 6 7 8 9 10 11 END 1 2 END 1 2 3 END10-5.Confirmation of Indoor Unit No. Position – 96 – <Maintenance/Check list>1 ACCESSORY PARTS ContentsDigital Inverter 2 SAFETY PRECAUTIONS3 INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER – 98 –Electrical wiring 4 INSTALLATION CONDITIONS„Required Tools/Equipment and Precautions for Use „Before installationDigital Inverter „Installation Location„Necessary Space for Installation Unit: mm Digital InverterKnockout procedure „Installation of Outdoor Unit„Optional Installation Parts Locally procured Serial installation in front and rear„Branch Pipe „Connecting the Gas Side Pipe„Tightening of Connecting Part Branch pipe installation„Air Purge 6 AIR PURGING„Refrigerant Pipe Length „Airtight Test„Replenishing Refrigerant „How to Open the ValveRefrigerant replenishing procedure „Insulating the PipesWiring diagram „ Wiring between Indoor Unit and„Power and Wiring Specifications Digital Inverter How to wire10 TEST RUN 11 ANNUAL MAINTENANCEStripping length power cord and connecting wire 9 FINISHING13 FUNCTIONS TO BE IMPLEMENTED LOCALLY 14 TROUBLESHOOTING„Recovering Refrigerant Cautions for using existing pipeD804 15 APPENDIXDigital Inverter D805Existing pipe SW Digital InverterPage 13. HOW TO EXCHANGE COMPRESSOR 13-1.Exchanging Procedure of Compressor Outline13-2.Exchange of Compressor 1. Detachment RAV-SM224, RAV-SM280series1.Detachment 2.Attachment2. Attachment Procedure– 113 – 1. Detachment2. Attachment – 114 –– 115 – 1. Detachment2. Attachment – 116 – DetachmentAttachment – 117 – 1. Detachment2. Attachment 1. Detachment Procedureof Inverter Assembly front – 118 –– 119 – 9Compressor 1. Detachment2. Attachment – 120 – 10Fan motor 1. Detachment2. Attachment <Compressor terminal> Procedure– 121 – No. Part name12Pulse motor 1. Detachment 11Compressor 2. Attachment3.Vacuuming 4.Refrigerant charge123 13Fan guard 1. Detachment2. Attachment 15-1.Outdoor Unit 15. EXPLODED VIEWS AND PARTS LIST– 125 – 15-2.Inverter Assembly – 127 – 15-3.Outdoor Unit – 129 – 15-4.Inverter Assembly RAV-SM – 131 –Location Model nameCheck of Concentration Limit WARNINGS ON REFRIGERANT LEAKAGETOSHIBA CARRIER CORPORATION