Manuals / Toshiba / Household Appliance / Air Conditioner

Toshiba CONCEALED DUCK TYPE, CEILING TYPE L20 error, L30 error, P30 error Central controller, 55

Models: CONCEALED DUCK TYPE CEILING TYPE

1 120

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Page 55

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[L20 error]

Are wiring connections to communication lines U3 and U4 normal?

YES

Is not the multiple same central control system addresses connected?

Check central controller

(including 1:1 model connection interface)

and indoor P.C. board (MCC-1402).

Defect → Replace

YES

Correct wiring connection.

Correct central control system address.

[L30 error]

	Are outside devices of			NO
	Are outside devices of
	connector CN80 connected?

	YES
				NO
	Do outside devices normally work?			NO



	YES


	Check cause of operation.

Check indoor P.C. board (MCC-1402).

Defect → Replace

Check outside devices.

Defect → Replace

[P30 error] (Central controller)

Is group operation carried out?

YES

Is there check code

on remote controller in the follower remote controller?

YES

Check corresponding

indoor unit/outdoor unit.

Check indoor P.C. board (MCC-1402).

Defect → Replace

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Page 55

Image 55

Toshiba CONCEALED DUCK TYPE, CEILING TYPE service manual L20 error, L30 error, P30 error Central controller, 55

Contents

R410A SERVICE MANUAL SPLIT TYPEINDOOR UNIT <DIGITAL INVERTER> CONTENTS 6. TROUBLESHOOTING Generic Denomination: Air Conditioner Original instruction– 4 – Indication – 5 –Work undertaken Protective gear wornWarning indication Warning Indications on the Air Conditioner UnitBURST HAZARD – 6 –DENGER Precaution for Safety– 7 – – 8 – – 9 – – 10 – – 11 – Explanations given to userRelocation Declaration of ConformitySpecifications 2Joint New Refrigerant R410A1 Copper pipe <Piping> <Flare nut>General tools Conventional tools can be used 4.Tools– 14 – – 15 – 1-1.Static Pressure Characteristics1. AIR DUCTING WORK Concealed Duct typeFig. 6 SM110 type Square duct – 16 –Fig. 5 SM110 type Round duct Fig. 7 SM140 type Round duct– 17 – Space required for installation and servicing2. CONSTRUCTION VIEWS EXTERNAL VIEWS 2-1.Compact 4-wayCassette TypeSM110 type – 18 –SM56 type SM80 typeØ12.7 – 19 –Model name SM56 type– 20 – 3. WIRING DIAGRAM3-1.Indoor Unit 3-1-1.Compact 4-wayCassette Type– 21 – 3-1-2.Concealed Duct Type– 22 – 3-1-3.Ceiling Type– 23 – SpecificationsSpecifications SpecificationsIndoor unit Wired Simple heder remote controller Max. 2 unitsCentral remote controller – 24 –∗ “1 1 model” connection interface Option Wireless remote controller– 25 – Indoor unit #1 Heder– 26 – Wireless remote controllerWired Simple heder remote controller Central remote controllerItem 5-2.Control SpecificationsOutline of specifications – 27 –Remarks Outline of specifications– 28 – ItemRemarks Outline of specifications– 29 – ItemCeiling type – 30 –Item RemarksRemarks Outline of specifications– 31 – ItemItem Outline of specificationsSetup at shipment – 32 –In cooling/dry operation Outline of specificationsItem RemarksItem Outline of specificationsAlarm – 34 –Remarks Outline of specifications<In case of wired remote controller> – 35 –Item Outline of specifications4, 5, – 36 –Remarks Outline of specifications– 37 – ItemItem Outline of specifications“8. SETUP AT LOCAL – 38 –Remarks Outline of specifications– 39 – Item– 40 – 5-3.Indoor Print Circuit BoardFunction ConnectorSpecifications – 41 –Confirmation of check code display <Wired remote controller type>– 42 – TroubleConfirmation of lamp display When wireless remote controller is connected– 43 – Trouble– 44 – Outline of judgmentLamp indication – 45 –Check code Cause of trouble occurrence Others Other than Check CodeLamp indication Check code6-2.Check Code List Indoor Judgment and measures Error mode detected by indoor unitOperation of diagnostic function – 48 –– 49 – Error mode detected by outdoor unitStatus of Operation of diagnostic function– 50 – Check– 51 – E09 error Check code E01 error– 52 – E10 error E04 error– 53 – – 54 – E18 errorE08, L03, L07, L08 error L09 error– 55 – L20 errorL30 error P30 error Central controllerF10 error P10 error– 56 – – 57 – P12 errorCheck by tester P19 error– 58 – F01 error F02 error– 59 – – 60 – C06 error 1 1 model connection interface– 61 – E03 error Master indoor unitF29 error P31 error Follower indoor unit– 62 – TA, TC, TCJ, TE, TS, TO sensorTA, TC, TCJ, TE,TS, TO sensor TD, TL sensor– 63 – Winding Resistance of Fan MotorPage CODE No. required at least 1 Setting data read out from EEPROMContents – 65 –<Fig. 1 RBC-AMT32E> <Fig. 2 EEPROM layout diagram>3 6 5 MCC-1402– 67 – Setting dataSetting data Setting data– 68 – 8-1-1.Test Run Setup on Remote Controller<Wired remote controller> 8-1.Indoor Unit– 69 – Procedure4, 5, <Ceiling Type>8-1-3.LED Display on Indoor P.C. Board 1.D002 Red 3 4 5 6Preparation in advance Practical operation– 71 – 8-1-4.Function Selection Setup4 5 2 1 2 3 4 5 6 ENDDescription – 72 –Item No. DN table Selection of function ItemDescription ItemAt shipment – 74 – <Wired remote controller>Wireless remote controller <Wireless remote controller>– 75 – 8-1-6.Monitor Function of Remote ControllernCalling of sensor temperature display 1 2 3– 76 – REQUIREMENTnIndoor unit power-ONsequence – 78 – 8-2.Setup at Local Site / Others5.P.C. Board Switch SW01 Setup 4.Wiring Specifications– 79 – – 80 – Procedure Perform setup while the unit stops1 2 3 3 1 4Page – 82 – 9-1.Address Setup9-2-1.System configuration Example – 84 –– 85 – simultaneously from the remote controllerChange is necessary 3, 6, 9 4, 7, 2, 5,1 2 3 4 5 6 7 8 9 10 11 END 1 2 END 2.Attachment 10-1.Compact 4-WayCassette Type– 88 – 1. Detachment2.Attachment Procedure– 89 – 1. DetachmentPart name Procedure1. Detachment 2.AttachmentNo. Part name Procedure1.Detachment 2.Attachment2.Attachment Procedure– 92 – 1.Detachment1. Detachment Procedure1. Detachment 2. Attachment2. Attachment Procedure– 94 – 9Fan motor 1. Detachment2. Attachment Procedure– 95 – 10Drain pan 1. Detachment– 96 – Procedure1 Recover refrigerant gas <Details of sensor lead wire drawing>Remarks Procedure10-2.Concealed Duct Type Part nameRemarks Procedure– 98 – Part nameRemarks Procedure– 99 – Part nameNo. Part name Procedure10-3.Ceiling Type – 100 –Remarks Procedure– 101 – Part nameRemarks Procedure– 102 – Part nameRemarks Procedure– 103 – Part name– 104 – 11-1.Compact 4-wayCassette TypeDescription – 105 –Location Part NoDescription – 106 –Location Part NoModel name Electric parts– 107 – Location204 11-2.Concealed Duct Type240 241 242 229 216 227 203, 902,Description – 109 –Location Part No– 110 – 230 221 228 229 219 202 203, 904,235901, 902, 903 222 223 220 232 234 218Description – 111 –Location Part No215 214 213 212 230, 232 223211 237221 202 203, 901, 902, 903 224 236 225 222 234, 226Description – 113 –Location Part NoModel name RAV-SM Electric parts– 114 – Location11-3.Ceiling Type Model name RAV-SM – 116 –Part No DescriptionModel name RAV-SM – 117 –Part No DescriptionModel name Electric parts118 LocationCheck of Concentration Limit WARNINGS ON REFRIGERANT LEAKAGETOSHIBA CARRIER CORPORATION