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Toshiba RAV-SM1603DT-A, RAV-SM1603ATZG-E service manual Defrost control, Start of heating operation

Models: RAV-SM1403DT-A RAV-SM1603ATZ-E RAV-SM1603ATZG-E RAV-SM1603DT-A

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10. Defrost control

10. Defrost control

QIn heating operation, defrost operation is performed when TE sensor temperature satisfies any condition in A zone to D zone.

RThe defrost operation is immediately finished if TE sensor temperature has become 12°C or more, or it also is finished when condition of 7°C < TE < 12°C has continued for 1 minute. The defrost operation is also finished when defrost operation has continued for 10 minutes even if TE sensor temperature has become 7°C or lower.

SAfter defrost operation has finished, the compressor and the outdoor fan start heating operation after stopped for approx. 50 seconds.

Start of heating operation

0

10

15

c

b

a

d [min.]

TE [˚C]

–5

A zone

–10

–13

B zone

–18

∗

D zone

C zone

* The minimum TE value between 10 and 15 minutes after heating operation has started is stored in memory as TE0.

A zone	Defrost operation is performed in this zone when TE0-TE > 3 continued for T seconds.
B zone	Defrost operation is performed in this zone when TE0-TE > 3 continued for T seconds.
C zone	Defrost operation is performed when this zone continued for T seconds.

D zone	Defrost operation is performed when this zone continued for T seconds.


	SM160

a	55

b	45

c	40

d	150

T	20

– 68 –

Image 68

Toshiba RAV-SM1603DT-A, RAV-SM1603ATZG-E, RAV-SM1603ATZ-E, RAV-SM1403DT-A Defrost control, Start of heating operation

Contents

OUTDOOR UNIT <DIGITAL INVERTER> INDOOR UNIT <DIGITAL INVERTER>FILE NO. A07-009 SERVICE MANUALCONTENTS SAFETY CAUTIONSPECIFICATIONS WIRING DIAGRAM6. REFRIGERANT R410A 7. INDOOR CONTROL CIRCUITDANGER Explanation of indicationsExplanation of illustrated marks Confirmation of warning label on the main unit– 5 – – 6 – 1. Safety Caution Concerned to New Refrigerant 2.Cautions on Installation/Service• New Refrigerant R410A 3.Pipe Materials– 8 – 4.ToolsGeneral tools Conventional tools can be used 1. SPECIFICATIONS 1-1.Indoor Unit– 9 – 1-1-1.High Static Duct Type <Single type>– 10 – Indoor unitSM1604UT-E Outdoor unit<Twin type> type> – 12 –<Triple – 13 – 1-1-3.Concealed Duct Type <Twin type><Triple type>– 15 – 1-1-4.Under Ceiling Type <Twin type>type> – 16 –<Triple – 17 – 1-1-5.High Wall Type Twin typetype> – 18 –<Triple 1-1-6.Compact 4-wayCassette 600 × 600 Type – 19 –Triple type>1-1-7.Slim Duct Type – 20 –<Triple type>RAV-SM1603ATZZG-E 1-2.Outdoor Unit– 21 – 1-3.Operation Characteristic Curve • Operation characteristic curve– 22 – RAV-SM1603AT-E, RAV-SM1603ATZ-E, RAV-SM1603ATZG-E2. CONSTRUCTION VIEWS EXTERNAL VIEWS 2-1.Indoor UnitService work space – 23 –Outdoor Unit – 24 –SM1603ATZ-E SM1603AT-E,RAV– 25 – RBC-TWP30E2, RBC-TWP50E2Simultaneous Twin<Gas side> – 26 –RBC-TRP100ESimultaneous Triple Gas side socket3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM 3-1.Indoor UnitDimension table Capillary tube specifications•Single type Systematic Diagram of Refrigerating Cycle 3-2.Outdoor Unit– 29 – RAV-SM1603AT-E, RAV-SM1603ATZ-E, RAV-SM1603ATZG-E4. WIRING DIAGRAM 4-1.Indoor Unit– 30 – RAV-SM1403DT-A, RAV-SM1603DT-A• Single type • Twin type• Triple type – 31 –RAV-SM1603AT-E, RAV-SM1603ATZ-E, RAV-SM1603ATZG-E 4-2.Outdoor Unit– 32 – 4-3.Fan Characteristics REQUIREMENTnWire connection change of fan motor – 33 –5. SPECIFICATIONS OF ELECTRICAL PARTS 5-1.Indoor Unit5-2.Outdoor Unit – 34 –6-1.Safety During Installation/Servicing 6-2.Refrigerant Piping Installation6. REFRIGERANT R410A 6-2-1.Piping Materials and Joints Used6-2-2.Processing of Piping Materials – 36 –Table 6-2-1Thicknesses of annealed copper pipes Thickness mmFig. 6-2-1Flare processing dimensions Flare and flare nut dimensions for R410AFlare and flare nut dimensions for R22 Table– 38 – NominalOuter diameter Tightening torque6-3.Tools 6-4.Recharging of RefrigerantFig. 6-4-1Configuration of refrigerant charging 6-3-1.Required Tools6-5.Brazing of Pipes 3.Low temperature brazing filler6-5-2.Flux 1.Reason why flux is necessary 6-5-1.Materials for Brazing2.Characteristics required for flux 3.Types of flux6-5-3.Brazing 1.Brazing method to prevent oxidation6-6.Instructions for Re-usePiping of R22 or R407C 6-6-4.Curing of Pipes– 43 – Cautions for using existing pipe 6-6-6.Handling of Existing Pipe– 44 – RAV-SP1404AT-E, RAV-SP1404ATZ-E, RAV-SP1404ATZG-E6-6-7.Recovery Method of Refrigerant ProcedureProcedure DANGER6-7.Tolerance of Pipe Length and Pipe Head n Twin systemIndoor unit A Indoor unit B Outdoor unitn Triple system – 47 –Indoor unit A Indoor unit C6-8.Additional Refrigerant Amount nTwin system– 48 – Indoor unit A Indoor unit BnTriple system – 49 –Indoor unit A Indoor unit C6-9.Piping Materials and Sizes nTwin systemnTriple system – 50 –OKOK NO GOOG6-10.Branch Pipe 6-11.Distributor7-1.Indoor Controller Block Diagram 7-1-1.Connection of Main Sub Remote Controller7. INDOOR CONTROL CIRCUIT – 52 –7-2.Control Specifications Outline of specifications– 53 – ItemOutline of specifications – 54 –Item RemarksOutline of specifications – 55 –Item RemarksOutline of specifications K 2 J– 56 – RemarksOutline of specifications Setup at shipment– 57 – ItemItem Outline of specifications– 58 – – 59 – ∗This option is not provided to oversea models7-4.Indoor Print Circuit Board – 60 –<MCC-1403> RAV-SM1403DT-A, RAV-SM1603DT-A7-5.Outdoor Print Circuit Board – 62 – Noise filter P.C. board <MCC-1551>– 63 – <MCC-1531>8-1.Outdoor Controls 2. Discharge temperature release controlREQUIREMENT 8-1-1.Outline of Main Controls4. Outdoor fan control Operation with WE– 65 – Allocations of fan tap revolutions rpmREQUIREMENT 5.Coil heating control– 66 – In trouble of TO sensor6.Short intermittent operation preventive control 7.High pressure restraint TE control8.Over-currentprotective control 9.Current release value shift control10. Defrost control Start of heating operation9. INDOOR UNIT TROUBLESHOOTING 9-1.Summary of Troubleshooting1. Before troubleshooting 2. Troubleshooting procedure9-2.Troubleshooting 9-2-1.Check Code List IndoorError mode detected by indoor unit – 71 –– 72 – – 73 – Check code E01 errorE09 error – 74 – E04 errorE10 error E18 error E08, L03, L07, L08 errorL09 error – 75 –L20 error L30 errorP30 error Central controller – 76 –– 77 – P10 errorF10 error Exchange to heating cycle P19 errorExchange to cooling cycle – 79 – F02 errorF01 error C06 error TCC-LINKcentral controller – 80 –E03 error Master indoor unit F29 errorP31 error Follower indoor unit – 81 –Temperature sensor TA, TC, TCJ, TE, TS, TO sensorsTD, TL sensors TA, TC, TCJ, TE, TS, TO sensors10. OUTDOOR UNIT TROUBLESHOOTING 10-1.Summary of Troubleshooting1. Before troubleshooting 2. Troubleshooting procedure2.Troubleshooting procedure 1. Before troubleshooting<Wireless remote controller type> – 84 –– 85 – 10-2.Troubleshooting10-2-1.Outline of Judgment Cause of trouble occurrence Lamp indicationCheck code New Check Code <Display on wired remote controller><Display on wireless sensor> 10-2-2.Others Other than Check Code10-2-3.Check Code List Outdoor – 88 –– 89 – Error mode detected by indoor unit – 90 –Operation. of diagnostic function – 91 –Judgment and measures Cause of operationError mode detected by outdoor unit – 92 –– 93 – Page – 95 – Check code E01 errorE09 error E04 error – 96 –E10 error E18 errorE08, L03, L07, L08 error – 97 –L09 error L20 errorL30 error – 98 –– 99 – b7 error Central controllerP01 error – 100 – P10 errorF10 error P12 error – 101 –P22 error CN301, ∗ CN303 CN300– 102 – RAV-SM160AT-E103 P19 errorF02 error – 104 – F01 errorP26 error P29 error F06 errorP04 error 105F08 error L29 errorH02 error – 106 –– 107 – P03 errorH01 error P04 error – 108 –97 error Central controller – 109 –E03 error Master indoor unit F29 error / 12 errorP31 error Sub indoor unit – 110 –– 111 – TA sensorTC, TCJ sensor Caracteristics-1Page CODE No. required at least 1 Setting data read out from EEPROM– 113 – 3 Writing the setting data to EEPROM 3 6 5– 114 – Step115 TableTable 2. Type: CODE No. Table 3. Indoor unit capacity: CODE No.12. SETUP AT LOCAL SITE AND OTHERS 12-1.Indoor Unit12-1-1.Test Run Setup on Remote Controller <Wired remote controller>3 6 1 4 5 21 2 3 4 5 6 END 1.D02 RedContents 118Function selection item No. DN list ItemSetup method Wired remote controller– 119 – Operation2 4 1 nCalling of sensor temperature display<Contents> <Procedure>nCalling of error history <Contents>Procedure 4 seconds or more to call the service check modenIndoor unit power-ONsequence which receives power feed from outdoor unit><Automatic address judgment> <By indoor unit12-2.Setup at Local Site / Others 2. Microprocessor block diagram3. TCC-LINKwiring connection 1. Function– 124 – 4. Wiring specifications5. P.C. board switch SW01 setup 6. External view of P.C. board assembly 7. Address setup12-3.How to Set up Central Control Address Number 1 2 3 4– 126 – Push UNIT LOUVER button for 4 seconds or more– 127 – 13. ADDRESS SETUP13-1.Address Setup Procedure 13-2.Address Setup & Group Control 13-2-1.System Configuration– 128 – <Terminology>– 129 – ExampleChange is necessary 1 2 3 4 5 6 7 8 9 10 11 END 2, 5,3, 6, 9 4 1 2 END 1 2 3 ENDnConfirmation of indoor unit No. position <Procedure>2. How to replace the parts 14. DETACHMENTS14-1.Indoor Unit REQUIREMENT Work procedure2. How to replace the parts Continued Work procedure– 134 – Explanatory drawing– 135 – 2. How to replace the parts ContinuedWork procedure 4. How to replace the parts Work procedureREQUIREMENT – 136 –4. How to replace the parts Continued Work procedure– 137 – Explanatory drawing5.Assembling work after replacing fan motor 4. How to replace the parts ContinuedWork procedure – 138 –– 139 – 6. How to replace the sensorWork procedure 6. How to replace the sensor Continued 7. How to clean the drain portWork procedure Work procedure14-2.Outdoor Unit – 141 –XREQUIREMENTX XREQUIREMENTXProcedure – 142 –Part name CDB board– 143 – 144 XREQUIREMENTX – 145 –XCAUTIONX – 146 – XREQUIREMENTX– 147 – XWARNINGXX CAUTIONX X CAUTIONX– 148 – 2. Mounting of compressor3. Vacuuming 4. Refrigerant charge– 149 – XREQUIREMENTXXREQUIREMENTX 1. Detachment15. EXPLODED VIEWS AND PARTS LIST 15-1Indoor Unit – 150 –151 LocationPart No Description– 152 – RAV-SM1403DT-A, RAV-SM1603DT-ALocation Part No15-2.Outdoor Unit – 154 – LocationDescription Model Name716, WARNINGS ON REFRIGERANT LEAKAGE Check of Concentration LimitTOSHIBA CARRIER CORPORATION