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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 MANUAL CONTENTS SAFETY CAUTIONSPECIFICATIONS WIRING DIAGRAM 6. REFRIGERANT R410A 7. INDOOR CONTROL CIRCUIT DANGER 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 4.Tools General 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 1-1-5.High Wall Type Twin type type> – 18 –<Triple type 1-1-6.Compact 4-wayCassette 600 × 600 TypeTriple 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-E 2. CONSTRUCTION VIEWS EXTERNAL VIEWS 2-1.Indoor UnitService work space – 23 – SM1603AT-E,RAV Outdoor UnitSM1603ATZ-E – 25 – RBC-TWP30E2, RBC-TWP50E2Simultaneous Twin <Gas side> RBC-TRP100ESimultaneous TripleGas side socket Liquid side socket 3. 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-E 4. 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 Used 6-2-2.Processing of Piping Materials – 36 –Table 6-2-1Thicknesses of annealed copper pipes Thickness mm Fig. 6-2-1Flare processing dimensions Flare and flare nut dimensions for R410AFlare and flare nut dimensions for R22 Table – 38 – NominalOuter diameter Tightening torque 6-3.Tools 6-4.Recharging of RefrigerantFig. 6-4-1Configuration of refrigerant charging 6-3-1.Required Tools 6-5.Brazing of Pipes 6-5-2.Flux 1.Reason why flux is necessary6-5-1.Materials for Brazing 1.Silver brazing filler 2.Characteristics required for flux 3.Types of flux6-5-3.Brazing 1.Brazing method to prevent oxidation 6-6.Instructions for Re-usePiping of R22 or R407C 6-6-4.Curing of PipesPage Cautions for using existing pipe 6-6-6.Handling of Existing Pipe– 44 – RAV-SP1404AT-E, RAV-SP1404ATZ-E, RAV-SP1404ATZG-E 6-6-7.Recovery Method of Refrigerant ProcedureProcedure DANGER 6-7.Tolerance of Pipe Length and Pipe Head n Twin systemIndoor unit A Indoor unit B Outdoor unit n Triple system – 47 –Indoor unit A Indoor unit C 6-8.Additional Refrigerant Amount nTwin system– 48 – Indoor unit A Indoor unit B nTriple system – 49 –Indoor unit A Indoor unit C 6-9.Piping Materials and Sizes nTwin systemnTriple system – 50 – OKOK NO GOOG6-10.Branch Pipe 6-11.Distributor 7-1.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 – Item Outline of specifications – 54 –Item Remarks Outline of specifications – 55 –Item Remarks Outline of specifications K 2 J– 56 – Remarks Outline of specifications Setup at shipment– 57 – Item Item Outline of specifications– 58 – – 59 – ∗This option is not provided to oversea models 7-4.Indoor Print Circuit Board – 60 –<MCC-1403> RAV-SM1403DT-A, RAV-SM1603DT-A 7-5.Outdoor Print Circuit Board – 62 – Noise filter P.C. board <MCC-1551> – 63 – <MCC-1531> 8-1.Outdoor Controls REQUIREMENT8-1-1.Outline of Main Controls 1.Pulse Motor Valve PMV control 4. Outdoor fan control Operation with WE– 65 – Allocations of fan tap revolutions rpm REQUIREMENT 5.Coil heating control– 66 – In trouble of TO sensor 6.Short intermittent operation preventive control 7.High pressure restraint TE control8.Over-currentprotective control 9.Current release value shift control 10. Defrost control Start of heating operation 9. INDOOR UNIT TROUBLESHOOTING 9-1.Summary of Troubleshooting1. Before troubleshooting 2. Troubleshooting procedure 9-2.Troubleshooting 9-2-1.Check Code List Indoor Error mode detected by indoor unit – 71 – – 72 – Check code E01 error E09 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 sensors 10. OUTDOOR UNIT TROUBLESHOOTING 10-1.Summary of Troubleshooting1. Before troubleshooting 2. Troubleshooting procedure 2.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 Code 10-2-3.Check Code List Outdoor – 88 – – 89 – Error mode detected by indoor unit – 90 – Operation. of diagnostic function – 91 –Judgment and measures Cause of operation Error 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 – b7 error Central controller P01 error – 100 – P10 errorF10 error P12 error – 101 – P22 error CN301, ∗ CN303 CN300– 102 – RAV-SM160AT-E 103 P19 errorF02 error – 104 – F01 errorP26 error P29 error F06 errorP04 error 105 F08 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 – Step 115 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 Red Contents 118Function selection item No. DN list At shipment from factory Setup method Wired remote controller– 119 – Operation 2 4 1 <Contents><Procedure> call the service monitor mode nCalling of error history <Contents>Procedure 4 seconds or more to call the service check mode nIndoor unit power-ONsequence which receives power feed from outdoor unit><Automatic address judgment> <By indoor unit 12-2.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 – Example Change 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 procedure 2. 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 drawing 5.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 procedure 14-2.Outdoor Unit – 141 –XREQUIREMENTX XREQUIREMENTX Procedure – 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. Detachment 15. EXPLODED VIEWS AND PARTS LIST 15-1Indoor Unit – 150 – 151 LocationPart No Description – 152 – RAV-SM1403DT-A, RAV-SM1603DT-ALocation Part No 15-2.Outdoor Unit 154 LocationDescription Model Name 716, WARNINGS ON REFRIGERANT LEAKAGE Check of Concentration Limit TOSHIBA CARRIER CORPORATION