Manuals / Toshiba / Household Appliance / Air Conditioner

Toshiba RAV-SM2804AT8ZG-E, RAV-SM2244AT8ZG-E, RAV-SM2804AT8Z-E, RAV-SM2244AT7ZG, RAV-SM2804AT7 72

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 72

– 72 –

Check

Outdoor

Check and troubleshooting

code

LED display

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

[H06]

<Display 1>

<Display 2> [Low pressure protective operation]

¡

¡

¡

l

Are gas pipe, liquid pipe

NO

l

l

and service valve of the

Open the service valve fully.

outdoor unit fully opened?

¡

¥

YES

l

¥

Are the pressure

NO

l

l

sensor characteristics of

Replace low pressure sensor.

low pressure normal?

YES

∗

Pressure by pressure gauge (Check joint)

Pressure indication by LED

Output power of I/F (CDB) P.C. board

If and , and are different,

an error of the pressure sensor is considered.

If and are different, check P.C. board.

NO

Is SV2 circuit normal?

Correct SV2 circuit.

YES

Check miss-wiring, wrong installation and connection of connector.

Isn’t any indoor unit

YES

which has different refrigerant

Correct wiring to regular wiring.

system connected?

NO

(Using miss-wiring check function of the outdoor unit, check them.)

In cooling season, go to A .

In heating season, go to B .

ACooling

NO

Are parts related to the

NO

Does cooling

indoor fan motor normal?

Repair the

1. Connection of connector

indoor fan normally operate?

defective position.

2. Capacitor

YES

YES

3. Motor 4. Fan

Is there clogging of indoor filter

YES

Cleaning

or heat exchanger?

Check indoor P.C. board

NO

Defective →

Replace

NO

Refrigerant shortage, clogging

Are connection of connectors

Repair the

or pipe breakage is considered.

and coils normal?

defective position.

YES

YES

Is blocking found in entire valve?

Replace PMV

with new one.

B Heating

NO

Is indoor fan

NO

NO

Does heating outdoor fan

system normal?

Repair the

normally operate?

·Fan breakage

defective position.

YES

YES

·Fan coming-off

YES

Is there clogging of

Cleaning

outdoor heat exchanger?

Check outdoor P.C. board

NO

NO

Defective →

Replace

Is outdoor PMV normal?

YES

Shortage of

refrigerant/blocking/pipe breakage


[L10] <Display 1>	<Display 2>	[Unset model type]: Only when service P.C. board is used
¡	¡
¡	l
l	¥			Cut jumper line according
¡	l			to the explanation sheet packaged
¡	l			with the service P.C. board.
¡	¥			with the service P.C. board.


l	l

– 72 –

Image 72

Toshiba RAV-SM2804AT8ZG-E, RAV-SM2244AT8ZG-E, RAV-SM2804AT8Z-E, RAV-SM2244AT7ZG, RAV-SM2804AT8-E, RAV-SM2804AT7Z 72

Contents

OUTDOOR UNIT DIGITAL INVERTERSERVICE MANUAL AIR-CONDITIONERCONTENTS REPLACEMENT OF SAFETY CAUTION IndicationExplanation Mark– 5 – – 6 – • New Refrigerant R410A 1. Safety Caution Concerned to New Refrigerant2.Cautions on Installation/Service 3.Pipe Materials4.Tools General tools Conventional tools can be usedRAV-SM2244ATseries Simultaneous twin Simultaneous tripleSimultaneous double twin <RAV-SM2804ATseries> Simultaneous twin– 10 – RAV-SM2244ATseriesBranch kit RAV-SM2804ATseries1. SPECIFICATIONS 1-1.Indoor Unit1-1-1. 4-WayCassette Type <Twin type>– 12 – 1-1-2.Duct Type <Twin type>– 13 – 1-1-3.Ceiling Type <Twin type>– 14 – 1-1-4. 4-WayCassette Type <Triple type>– 15 – 1-1-5.Duct Type <Triple type>– 16 – 1-1-6.Ceiling Type <Triple type>– 17 – 1-1-7.High Wall Type Triple type– 18 – 1-1-8. 4-WayCassette Type Double twin type– 19 – Indoor unitRAV-SM562MUT-E RAV-SM562MUT-E– 20 – 1-1-10.Slim Duct Type <Double twin type>– 21 – 1-1-11.Duct Type <Double twin type>1-1-12.Ceiling Type <Double twin type> – 23 – 1-1-12.High Wall Type Double twin type1-2.Outdoor Unit – 24 –RAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -E RAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZGCooling <Heating>– 26 – RAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -ERAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZG <Cooling>2. CONSTRUCTION VIEWS EXTERNAL VIEWS 2-1.Outdoor Unit– 28 – RBC-DTWP101ESimultaneous Double TwinBranch pipe <Joint pipe><Gas side> <Liquid side>RBC-TRP100ESimultaneous Triple Gas side socket– 30 – RBC-TWP101ESimultaneous Twin<Branch pipe> <Joint pipe>3. OUTDOOR UNIT REFRIGERANTING CYCLE DIAGRAM – 31 –RAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -E RAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZGSystematic diagram of refrigerating cycle RAV-SM2244seriesRAV-SM2804series 4. WIRING DIAGRAM 4-1.Outdoor Unit5. SPECIFICATIONS OF ELECTRICAL PARTS 5-1.Outdoor UnitRAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -E RAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZG6-1.Safety During Installation/Servicing 6-2.Refrigerant Piping Installation6. REFRIGERANT R410A 6-2-1.Piping Materials and Joints Used1.Flare Processing Procedures and Precautions 1.Joints6-2-2.Processing of Piping Materials Table 6-2-1Thicknesses of annealed copper pipesFig. 6-2-1Flare processing dimensions Flare and flare nut dimensions for R410AFlare and flare nut dimensions for R22 Table2.Flare Connecting Procedures and Precautions NominalOuter diameter Tightening torqueFig. 6-4-1Configuration of refrigerant charging 6-3.Tools6-4.Recharging of Refrigerant 6-3-1.Required Tools3.Low temperature brazing filler 6-5-2.Flux 1.Reason why flux is necessary6-5-1.Materials for Brazing 1.Silver brazing filler2.Characteristics required for flux 3.Types of flux6-5-3.Brazing Never use gas other than Nitrogen gas6-6-2.Restricted Items to Use the Existing Pipes 6-6-4.Curing of PipesInstruction of Works If the definite conditions can be cleared6-6-5.Final Installation Checks – 43 –Cautions for using existing pipe 6-6-7.Recovering Refrigerant6-6-6.Handling of Existing Pipe – 44 –7-1.Outdoor Unit Control – 45 –7-1-2.Print Circuit Board, MCC-1597Fan Motor IPDU – 46 –7-1-3.Print Circuit Board, MCC-1599Interface CDB – 47 –7-1-4.Print Circuit Board, MCC-1600Noise Filter – 48 –2.Discharge temperature release control 7-2.Outline of Main Controls1.PMV Pulse Motor Valve control 3.Outdoor fan revolution number control – 50 –3-1.Cooling fan control 3-2Heating fan control4.Defrost control 5.Short interrupted operation preventive control6.Electrical current release control 7.Heat sink temperature detection control 8.Electrical current release value shift control9.Over-currentprotective control 11.High-pressurerelease control13.Oil recovery control 12.SV2 valve control– 53 – 14.Coil heating control – 54 –8. TROUBLESHOOTING 8-1.Summary of Troubleshooting1. Before troubleshooting 2. Troubleshooting procedure1. Before troubleshooting 2.Troubleshooting procedure<Wireless remote controller type> – 56 –8-2.Troubleshooting 8-2-1.Outline of judgment– 58 – Lamp indicationCheck code Cause of trouble occurrence8-2-2.Others Other than Check Code – 59 –Page Page – 62 – Error mode detected by indoor unit Operation of diagnostic functionJudgment and measures Cause of operationError mode detected by outdoor unit – 64 –Operation of diagnostic function Check codeJudgment and measures Indoor unit– 66 – Dip switch setup <Latest error display><Error display, which occurs at present> LED display on outdoor P.C. boardPage – 69 – – 70 – – 71 – – 72 – ¡l l l – 74 – – 75 – – 76 – Check and troubleshooting – 77 –Check Outdoor– 78 – Temperature sensor TA, TC, TCJ, TE, TS, TO sensorsTD, TL sensors TA, TC, TCJ, TE, TS, TO sensors<Contents> Procedure4 seconds or more to call the service check mode REQUIREMENTnIndoor unit power-ONsequence 9-3.Outdoor Unit – 82 –D805 D804 D803 D802 D801 D800 1.OutlineOperation part Display part9-3-3.Others 1.Selection of LED display SW800, SW803 operation– 84 – 1Display selection listlllll¡ lllll¡ – 87 – <Specific operation>SW804 – 88 – SW80410. ADDRESS SETUP 10-1.Address Setup Procedure10-2.Address Setup & Group Control 10-2-1.System Configuration<Terminology> – 91 – Example– 92 – Change is necessary10-3.Remote Controller Wiring Wiring diagramSimultaneous twin system Simultaneous triple and double 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 <Maintenance/Check list> – 96 –Contents 1 ACCESSORY PARTS2 SAFETY PRECAUTIONS 3 INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER– 98 – Digital Inverter4 INSTALLATION CONDITIONS „Required Tools/Equipment and Precautions for Use„Before installation Electrical wiring„Installation Location „Necessary Space for Installation Unit: mmDigital Inverter Digital Inverter„Installation of Outdoor Unit „Optional Installation Parts Locally procuredSerial installation in front and rear Knockout procedure„Connecting the Gas Side Pipe „Tightening of Connecting PartBranch pipe installation „Branch Pipe6 AIR PURGING „Refrigerant Pipe Length„Airtight Test „Air Purge„How to Open the Valve Refrigerant replenishing procedure„Insulating the Pipes „Replenishing Refrigerant„ Wiring between Indoor Unit and „Power and Wiring SpecificationsDigital Inverter How to wire Wiring diagram11 ANNUAL MAINTENANCE Stripping length power cord and connecting wire9 FINISHING 10 TEST RUN14 TROUBLESHOOTING „Recovering RefrigerantCautions for using existing pipe 13 FUNCTIONS TO BE IMPLEMENTED LOCALLY15 APPENDIX Digital InverterD805 D804Digital Inverter Existing pipe SWPage 13. HOW TO EXCHANGE COMPRESSOR 13-1.Exchanging Procedure of Compressor Outline13-2.Exchange of Compressor RAV-SM224, RAV-SM280series 1.Detachment2.Attachment 1. DetachmentProcedure – 113 –1. Detachment 2. Attachment– 114 – 2. Attachment– 115 – 1. Detachment2. Attachment – 116 – DetachmentAttachment – 117 – 1. Detachment2. Attachment Procedure of Inverter Assembly front– 118 – 1. Detachment– 119 – 9Compressor 1. Detachment2. Attachment – 120 – 10Fan motor 1. Detachment2. Attachment Procedure – 121 –No. Part name <Compressor terminal>11Compressor 2. Attachment 3.Vacuuming4.Refrigerant charge 12Pulse motor 1. Detachment123 13Fan guard 1. Detachment2. Attachment 15. EXPLODED VIEWS AND PARTS LIST 15-1.Outdoor Unit– 125 – 15-2.Inverter Assembly – 127 – 15-3.Outdoor Unit – 129 – 15-4.Inverter Assembly – 131 – LocationModel name RAV-SMWARNINGS ON REFRIGERANT LEAKAGE Check of Concentration LimitTOSHIBA CARRIER CORPORATION