Manuals / Toshiba / Household Appliance / Air Conditioner

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

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 68

Manual background

Check

Outdoor

Check and troubleshooting

code

LED display

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

[F04]

<Display 1> <Display 2>

[Discharge temp. sensor (TD) error]

¡

¡

¡

l

Is CN603 connection normal?

NO

Correct connector.

l

l

Is resistance value of TD sensor normal?

Sensor error → Replace

l

¥

YES

¡

l

¡

l

Check outdoor P.C. board (MCC-1599).

Defect → Replace

[F06]

• There is a possibility that it is one of the following errors.

Confirm LED on outdoor P.C. board to judge which error it is.

Heat exchanger temp. sensor (TE) error, Heat exchanger temp. sensor (TL) error,

Suction temp. sensor (TS) error, Miswiring of heat exchanger sensor (TE, TS)

<Display 1>

<Display 2> Heat exchanger temp. sensor (TE) error]

¡

¡

¡

l

Is CN601 connection normal?

NO

Correct connector.

l

l

Is resistance value of TE sensor normal?

Sensor error → Replace

l

¥

YES

¡

¥

¡

l

Check outdoor P.C. board (MCC-1599).

Defect → Replace

<Display 1>

<Display 2>

[Heat exchanger temp. sensor (TL) error] →

Refer to [F07] column.

¡ ¡

¡l

l l

l¥

¡¥

¡¥

<Display 1> <Display 2> [Suction temp. sensor (TS) error] → Refer to [F12] column.

¡ ¡

¡l

l¥

l¥

¡l

¡l

<Display 1> <Display 2> [Miswiring of heat exchanger sensor (TE, TS)] → Refer to [F15] column.

¡ ¡

¡l

l¥

l¥

¡¥

¡¥

[F07] <Display 1>	<Display 2> [Heat exchanger temp. sensor (TL) error]
¡	¡
¡	l	Is CN604 connection normal?					NO			Correct connector.
		Is CN604 connection normal?								Correct connector.
l	l	Is resistance value of TL sensor normal?								Sensor error → Replace
l	¥	YES
l	¥
¡	¥
¡	¥
¡	¥
¡	¥						Check outdoor P.C. board (MCC-1599).
							Check outdoor P.C. board (MCC-1599).
										Defect → Replace

– 68 –

Image 68

Toshiba RAV-SM2804AT8Z-E, RAV-SM2804AT8ZG-E, RAV-SM2244AT8ZG-E, RAV-SM2244AT7ZG, RAV-SM2804AT8-E, RAV-SM2804AT7Z service manual

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 ZGRAV-SM2804series Systematic diagram of refrigerating cycleRAV-SM2244series 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 –1.PMV Pulse Motor Valve control 2.Discharge temperature release control7-2.Outline of Main Controls 3.Outdoor fan revolution number control – 50 –3-1.Cooling fan control 3-2Heating fan control6.Electrical current release control 4.Defrost control5.Short interrupted operation preventive control 7.Heat sink temperature detection control 8.Electrical current release value shift control9.Over-currentprotective control 11.High-pressurerelease control– 53 – 13.Oil recovery control12.SV2 valve control 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¡ SW804 – 87 –<Specific operation> – 88 – SW80410. ADDRESS SETUP 10-1.Address Setup Procedure<Terminology> 10-2.Address Setup & Group Control10-2-1.System Configuration – 91 – Example– 92 – Change is necessary10-3.Remote Controller Wiring Wiring diagramSimultaneous twin system Simultaneous triple and double twin system1 2 3 4 5 6 7 8 9 10 11 END 2, 5,3, 6, 9 4, 7, 10-5.Confirmation of Indoor Unit No. Position 1 2 END1 2 3 END <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 13-2.Exchange of Compressor 13. HOW TO EXCHANGE COMPRESSOR13-1.Exchanging Procedure of Compressor Outline RAV-SM224, RAV-SM280series 1.Detachment2.Attachment 1. DetachmentProcedure – 113 –1. Detachment 2. Attachment– 114 – 2. Attachment2. Attachment – 115 –1. Detachment Attachment – 116 –Detachment 2. Attachment – 117 –1. Detachment Procedure of Inverter Assembly front– 118 – 1. Detachment2. Attachment – 119 –9Compressor 1. Detachment 2. Attachment – 120 –10Fan motor 1. Detachment Procedure – 121 –No. Part name <Compressor terminal>11Compressor 2. Attachment 3.Vacuuming4.Refrigerant charge 12Pulse motor 1. Detachment2. Attachment 12313Fan guard 1. Detachment 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