Manuals / Toshiba / Household Appliance / Air Conditioner

Toshiba RAV-SM2244AT7Z, RAV-SM2804AT8ZG-E, RAV-SM2244AT8ZG-E, RAV-SM2804AT8Z-E 114, Attachment

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 114

– 114 –

No. Part name

Procedure

Remarks

4Side cabinet 1. Detachment

1)	Carry out the operation in 1. of Q and 1. of R	Side cabinet	C Type screw
	above.		(serration)
2)	Remove the screws fixing the inverter assembly
	and the side cabinet. (ST1T Ø4 × 10, 3 pcs.)
3)	Remove the screws for the side cabinet and the
	valve fixing plate. (ST1T Ø4 × 10, 2 pcs.)
4)	Remove screw for the side cabinet and piping
	panel (rear). (Hexagonal screw Ø4 × 10, 1 pc.)		Holder fixing
5)	Remove screw for the side cabinet and the		plate
5)	Remove screw for the side cabinet and the
	bottom plate. (Hexagonal screw Ø4 × 10, 1 pc.)
6)	Remove screws for the side cabinet, heat
	exchanger and the fin guard.
	(Hexagonal screw Ø4 × 10, 4 pcs.)
7)	Remove the screw of the holder fixing plate and		Fin grad
	the side cabinet (C type Ø4 × 8, 1 pc)
			Heat
			exchanger

2. Attachment

1)	Temporarily suspend the side cabinet on the	Piping panel	Bottom plate
	inverter assembly using the hook.	(rear)
	inverter assembly using the hook.
2)	Mount the removed screws in the opposite	Inverter Ass’y
	procedure to that during detachment.	Inverter Ass’y
	procedure to that during detachment.
			Hook

Valve fixing plate

– 114 –

Image 114

Toshiba RAV-SM2804AT8ZG-E, RAV-SM2244AT8ZG-E, RAV-SM2804AT8Z-E, RAV-SM2244AT7ZG, RAV-SM2804AT8-E 114, Attachment

Contents

SERVICE MANUAL OUTDOOR UNITDIGITAL INVERTER AIR-CONDITIONERCONTENTS REPLACEMENT OF Explanation SAFETY CAUTIONIndication Mark– 5 – – 6 – 2.Cautions on Installation/Service • New Refrigerant R410A1. Safety Caution Concerned to New Refrigerant 3.Pipe Materials4.Tools General tools Conventional tools can be usedSimultaneous double twin RAV-SM2244ATseries Simultaneous twinSimultaneous triple <RAV-SM2804ATseries> Simultaneous twinBranch kit – 10 –RAV-SM2244ATseries RAV-SM2804ATseries1-1-1. 4-WayCassette Type 1. SPECIFICATIONS1-1.Indoor Unit <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 typeRAV-SM562MUT-E – 19 –Indoor unit 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 –Cooling RAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -ERAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZG <Heating>RAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZG – 26 –RAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -E <Cooling>2. CONSTRUCTION VIEWS EXTERNAL VIEWS 2-1.Outdoor UnitBranch pipe – 28 –RBC-DTWP101ESimultaneous Double Twin <Joint pipe>RBC-TRP100ESimultaneous Triple <Gas side><Liquid side> Gas side socket<Branch pipe> – 30 –RBC-TWP101ESimultaneous Twin <Joint pipe>RAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -E 3. OUTDOOR UNIT REFRIGERANTING CYCLE DIAGRAM– 31 – RAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZGSystematic diagram of refrigerating cycle RAV-SM2244seriesRAV-SM2804series 4. WIRING DIAGRAM 4-1.Outdoor UnitRAV-SM2244AT8Z ZG -E, RAV-SM2804AT8Z ZG -E 5. SPECIFICATIONS OF ELECTRICAL PARTS5-1.Outdoor Unit RAV-SM2244AT7Z ZG, RAV-SM2804AT7Z ZG6. REFRIGERANT R410A 6-1.Safety During Installation/Servicing6-2.Refrigerant Piping Installation 6-2-1.Piping Materials and Joints Used6-2-2.Processing of Piping Materials 1.Flare Processing Procedures and Precautions1.Joints Table 6-2-1Thicknesses of annealed copper pipesFlare and flare nut dimensions for R22 Fig. 6-2-1Flare processing dimensionsFlare and flare nut dimensions for R410A TableOuter diameter 2.Flare Connecting Procedures and PrecautionsNominal Tightening torque6-4.Recharging of Refrigerant Fig. 6-4-1Configuration of refrigerant charging6-3.Tools 6-3-1.Required Tools6-5-1.Materials for Brazing 3.Low temperature brazing filler6-5-2.Flux 1.Reason why flux is necessary 1.Silver brazing filler6-5-3.Brazing 2.Characteristics required for flux3.Types of flux Never use gas other than Nitrogen gasInstruction of Works 6-6-2.Restricted Items to Use the Existing Pipes6-6-4.Curing of Pipes If the definite conditions can be cleared6-6-5.Final Installation Checks – 43 –6-6-6.Handling of Existing Pipe Cautions for using existing pipe6-6-7.Recovering Refrigerant – 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 3-1.Cooling fan control 3.Outdoor fan revolution number control– 50 – 3-2Heating fan control4.Defrost control 5.Short interrupted operation preventive control6.Electrical current release control 9.Over-currentprotective control 7.Heat sink temperature detection control8.Electrical current release value shift control 11.High-pressurerelease control13.Oil recovery control 12.SV2 valve control– 53 – 14.Coil heating control – 54 –1. Before troubleshooting 8. TROUBLESHOOTING8-1.Summary of Troubleshooting 2. Troubleshooting procedure<Wireless remote controller type> 1. Before troubleshooting2.Troubleshooting procedure – 56 –8-2.Troubleshooting 8-2-1.Outline of judgmentCheck code – 58 –Lamp indication Cause of trouble occurrence8-2-2.Others Other than Check Code – 59 –Page Page – 62 – Judgment and measures Error mode detected by indoor unitOperation of diagnostic function Cause of operationError mode detected by outdoor unit – 64 –Judgment and measures Operation of diagnostic functionCheck code Indoor unit– 66 – <Error display, which occurs at present> Dip switch setup<Latest error display> LED display on outdoor P.C. boardPage – 69 – – 70 – – 71 – – 72 – ¡l l l – 74 – – 75 – – 76 – Check Check and troubleshooting– 77 – Outdoor– 78 – TD, TL sensors Temperature sensorTA, TC, TCJ, TE, TS, TO sensors TA, TC, TCJ, TE, TS, TO sensors4 seconds or more to call the service check mode <Contents>Procedure REQUIREMENTnIndoor unit power-ONsequence 9-3.Outdoor Unit – 82 –Operation part D805 D804 D803 D802 D801 D8001.Outline Display part– 84 – 9-3-3.Others1.Selection of LED display SW800, SW803 operation 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 necessarySimultaneous twin system 10-3.Remote Controller WiringWiring diagram 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 PARTS– 98 – 2 SAFETY PRECAUTIONS3 INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER Digital Inverter„Before installation 4 INSTALLATION CONDITIONS„Required Tools/Equipment and Precautions for Use Electrical wiringDigital Inverter „Installation Location„Necessary Space for Installation Unit: mm Digital InverterSerial installation in front and rear „Installation of Outdoor Unit„Optional Installation Parts Locally procured Knockout procedureBranch pipe installation „Connecting the Gas Side Pipe„Tightening of Connecting Part „Branch Pipe„Airtight Test 6 AIR PURGING„Refrigerant Pipe Length „Air Purge„Insulating the Pipes „How to Open the ValveRefrigerant replenishing procedure „Replenishing RefrigerantDigital Inverter How to wire „ Wiring between Indoor Unit and„Power and Wiring Specifications Wiring diagram9 FINISHING 11 ANNUAL MAINTENANCEStripping length power cord and connecting wire 10 TEST RUNCautions for using existing pipe 14 TROUBLESHOOTING„Recovering Refrigerant 13 FUNCTIONS TO BE IMPLEMENTED LOCALLYD805 15 APPENDIXDigital Inverter D804Digital Inverter Existing pipe SWPage 13. HOW TO EXCHANGE COMPRESSOR 13-1.Exchanging Procedure of Compressor Outline13-2.Exchange of Compressor 2.Attachment RAV-SM224, RAV-SM280series1.Detachment 1. Detachment1. Detachment Procedure– 113 – 2. Attachment– 114 – 2. Attachment– 115 – 1. Detachment2. Attachment – 116 – DetachmentAttachment – 117 – 1. Detachment2. Attachment – 118 – Procedureof Inverter Assembly front 1. Detachment– 119 – 9Compressor 1. Detachment2. Attachment – 120 – 10Fan motor 1. Detachment2. Attachment No. Part name Procedure– 121 – <Compressor terminal>4.Refrigerant charge 11Compressor 2. Attachment3.Vacuuming 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 Model name – 131 –Location RAV-SMWARNINGS ON REFRIGERANT LEAKAGE Check of Concentration LimitTOSHIBA CARRIER CORPORATION