Manuals / Toshiba / Household Appliance / Air Conditioner

Toshiba RAV-SM2804AT8ZG-E, RAV-SM2244AT8ZG-E, RAV-SM2804AT8Z-E, RAV-SM2244AT7ZG, RAV-SM2804AT7 70

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 70

– 70 –

Check	Outdoor				Check and troubleshooting
code	LED display		(Item without special mention Indicates part of outdoor unit.)

[F23]	<Display 1> <Display 2>		[PS sensor error]
	¡	¡
	¡	¥	Is connector of			NO
	l	l				NO			Correct connection of connector.

			Ps sensor correctly connected?
	l	¥	Ps sensor correctly connected?
			YES

	¡	¥			Connector: CN606, White
					Connector: CN606, White
	¡	¥

Are the output current characteristics			NO			Sensor error
Are the output current characteristics
of Ps sensor normal?
of Ps sensor normal?
YES
YES		∗ Pressure by pressure gauge (Check joint)
		∗ Pressure by pressure gauge (Check joint)
		Pressure display on LED display
		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 I/F P.C. board.

Does not refrigerant bypass		NO
Does not refrigerant bypass		NO			Check compressor.
from discharge port to suction port
from discharge port to suction port
of 4-way valve?
of 4-way valve?
YES
YES

					Check 4-way valve.
					Check 4-way valve.

[F31] <Display 1> <Display 2> [EEPROM error]

¡ ¡

¡¥

l	¥		Check outdoor P.C. board (MCC-1599).
l	¥		Check outdoor P.C. board (MCC-1599).
l	¥		Defect → Replace
¡	¥

¡¥

[H01] <Display 1> <Display 2> [Compressor break down]

¡	¡
¡	l	Is power supply voltage normal?				NO
l	l					NO		Correct power supply line.

		AC342 to 457V
¡	l	AC342 to 457V
		YES

l	l
l	¥
l	¥	Is wire connection normal?				NO


		Compressor lead						Check wire connection
		(Board side, Compressor side),						and correct it.
		Reactor lead, Power supply lead
		Reactor lead, Power supply lead
		YES
		YES
						YES

		Is it not abnormal overload?						Correct and clear the cause.



		NO
		NO

						Check outdoor P.C. board (MCC-1596).
								Defect → Replace

– 70 –

Image 70

Toshiba RAV-SM2804AT8ZG-E, RAV-SM2244AT8ZG-E, RAV-SM2804AT8Z-E, RAV-SM2244AT7ZG, RAV-SM2804AT8-E, RAV-SM2804AT7Z 70

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 ZGRAV-SM2244series Systematic diagram of refrigerating cycleRAV-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 –7-2.Outline of Main Controls 2.Discharge temperature release control1.PMV Pulse Motor Valve control 3-1.Cooling fan control 3.Outdoor fan revolution number control– 50 – 3-2Heating fan control5.Short interrupted operation preventive control 4.Defrost control6.Electrical current release control 9.Over-currentprotective control 7.Heat sink temperature detection control8.Electrical current release value shift control 11.High-pressurerelease control12.SV2 valve control 13.Oil recovery 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¡ <Specific operation> – 87 –SW804 – 88 – SW80410. ADDRESS SETUP 10-1.Address Setup Procedure10-2-1.System Configuration 10-2.Address Setup & Group Control<Terminology> – 91 – Example– 92 – Change is necessarySimultaneous twin system 10-3.Remote Controller WiringWiring diagram Simultaneous triple and double twin system3, 6, 9 4, 7, 2, 5,1 2 3 4 5 6 7 8 9 10 11 END 1 2 3 END 1 2 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 13-1.Exchanging Procedure of Compressor Outline 13. HOW TO EXCHANGE COMPRESSOR13-2.Exchange of Compressor 2.Attachment RAV-SM224, RAV-SM280series1.Detachment 1. Detachment1. Detachment Procedure– 113 – 2. Attachment– 114 – 2. Attachment1. Detachment – 115 –2. Attachment Detachment – 116 –Attachment 1. Detachment – 117 –2. Attachment – 118 – Procedureof Inverter Assembly front 1. Detachment9Compressor 1. Detachment – 119 –2. Attachment 10Fan motor 1. Detachment – 120 –2. Attachment No. Part name Procedure– 121 – <Compressor terminal>4.Refrigerant charge 11Compressor 2. Attachment3.Vacuuming 12Pulse motor 1. Detachment13Fan guard 1. Detachment 1232. 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