Manuals / Toshiba / Household Appliance / Air Conditioner

Toshiba RAS-M14EAV-E, RAS-M13EKCVP-E, RAS-M18EACV-E, RAS-M14EACV-E 79, < Discharging method >

Models: RAS-B10EKVP-E RAS-M14EAV-E RAS-B13EKVP-E RAS-M18EAV-E RAS-M10EKCVP-E RAS-M16EKCVP-E RAS-M14EACV-E RAS-M18EACV-E RAS-M13EKCVP-E

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Page 79

< Discharging method >

Precautions when inspecting the control section of the outdoor unit

NOTE :

A large-capacity electrolytic capacitor is used in the outdoor unit controller (inverter). Therefore, if the power supply is turned off, charge (charging voltage DC280 to 380V) remains and discharging takes a lot of time. After turning off the power source, if touching the charging section before discharging, an electrical shock may be caused. Discharge the electrolytic capacitor completely by using soldering iron, etc.

< Discharging method >

(1)Remove the inverter cover (plating) by opening four mounting claws.

(2)As shown below, connect the discharge resistance (approx. 100Ω40W) or plug of the soldering iron to voltage between + – terminals of the C14 (“CAUTION HIGH VOLTAGE” is indicated.) electrolytic capacitor (760µF/ 400V) on P.C. board, and then perform discharging.

		Inverter cover
Discharging position	Plug of	P. C. board
(Discharging period	Plug of	(Soldered surface)
10 seconds or more)	soldering iron

Fig. 11-1

– 79 –

Image 79

Toshiba RAS-M14EAV-E, RAS-M13EKCVP-E, RAS-M18EACV-E, RAS-M14EACV-E, RAS-M16EKCVP-E, RAS-M10EKCVP-E 79, < Discharging method >

Contents

SPLIT TYPE AIR-CONDITIONERFILE NO. A04-015 CONTENTS For general public use 1. SAFETY PRECAUTIONSDANGER – 4 – For Reference– 5 – 2. SPECIFICATIONSTable of models that can be connected Table of models that can be used in combination– 6 – Page Cooling Indoor: DB/WB=27/19C Outdoor: DB=35C – 8 –Heating Indoor: DB=20C Outdoor: DB/WB=7/6C <Cooling> RAS-M18EAV-E , RAS-M18EACV-E – 9 –<Heating>RAS-M18EAV-E RAS-M14EAV-E, RAS-M14EACV-E <Cooling> 2-2-1.Operation Characteristic Curve– 10 – <Cooling> RAS-M14EAV-E, RAS-M14EACV-ERAS-M18EAV-E, RAS-M18EACV-E 2-2-3.Operation Characteristic Curve– 11 – <Cooling> RAS-M18EAV-E, RAS-M18EACV-E3-2-1.Piping Materials and Joints Used 3-1.Safety During Installation/Servicing3-2.Refrigerant Piping Installation 3. REFRIGERANT R410A– 13 – 3-2-2.Processing of Piping Materials– 14 – – 15 – – 16 – 3-3.Tools3-3-1.Required Tools General tools Conventional tools can be used– 17 – 3-4.Recharging of Refrigerant– 18 – 3-5.Brazing of Pipes3-5-1.Materials for Brazing 3-5-2.FluxNever use gas other than Nitrogen gas 3-5-3.Brazing– 19 – RAS-B10EKVP-E RAS-B13EKVP-E RAS-B16EKVP-E 4. CONSTRUCTION VIEWS4-1.Indoor Unit – 20 –– 21 – 4-2.Outdoor Unit– 22 – 5. WIRING DIAGRAM5-1.Indoor Unit T3.15A– 23 – 5-2.Outdoor UnitRAS-M16EKCVP-E, RAS-M13EKCVP-E, RAS-M10EKCVP-E Specifications– 24 – RAS-B16EKVP-E, RAS-B13EKVP-E, RAS-B10EKVP-EModel name 6-2.Outdoor Unit– 25 – Parts nameRAS-B13EKVP-E, RAS-B10EKVP-E RAS-M14EAV-E 7. REFRIGERANT CYCLE DIAGRAM7-1.Refrigerant Cycle Diagram – 26 –RAS-M13EKCVP-E, RAS-M10EKCVP-ERAS- M14EACV-E Page – 29 – – 30 – 7-2.Operation Data– 31 – 8. CONTROL BLOCK DIAGRAMREMOTE CONTROLLER 8-1.Indoor UnitRAS-M10EKCVP-E, RAS-M13EKCVP-E, RAS-M16EKCVP-E REMOTE CONTROLLERM.C.U CONTROL BLOK DIAGRAM Outdoor unit– 33 – M.C.U9-1.Outline of Air Conditioner Control 9. OPERATION DESCRIPTION– 34 – 9-2.Operation Description ContentsPage Page – 37 – Fan only operation Cooling-onlymodel – 38 –Ts + Ts –Operation flow and applicable data, etc Symbols– 39 – Item<In heating operation> Heat pump model – 40 –Operation flow and applicable data, etc DescriptionOperation flow and applicable data, etc outdoor temperatureTo and– 41 – Item– 42 – – 43 – <In cooling/dry operation> – 44 –Item Operation flow and applicable data, etcDescription – 45 –Item Operation flow and applicable data, etcDescription – 46 –Item Operation flow and applicable data, etcDescription – 47 –Item Operation flow and applicable data, etcOperation flow and applicable data, etc – 48 –Description – 49 – 1. Purpose 1. Purpose2. Description 3. OperationOperation flow and applicable data, etc – 51 –Description Operation flow and applicable data, etc Clean operation– 52 – ItemItem Setting the clean operationOutline diagram of P.C. board – 53 –Item Setting the remote controllerSetting the selector switch on the main unit – 54 –9-3.Auto Restart Function 9-3-1.How to Set the Auto Restart Function– 55 – 9-4-1.How to Turn Off FILTER Indicator 9-4.FILTER Indicator9-3-2.How to Cancel the Auto Restart Function 9-3-3.Power Failure During Timer Operation9-5-1.Parts Name of Remote Controller 9-5.Remote Controller and Its Fuctions– 57 – Display – 58 –adbhj Hi-POWERbutton on the remote controller is pushed 9-6. Hi-POWERMode– 59 – 10. INSTALLATION PROCEDURE – 61 – Optional Installation PartsAccessory and Installation Parts 10-2.OptionalParts, Accesories and Tools– 62 – Installation/Service Tools– 63 – 10-3.Installation of Indoor UnitInstallation Location Drilling a Hole and Mounting Installation Plate– 64 – Electrical Work– 65 – Wiring Connection– 66 – Piping and Drain Hose InstallationLeft-handconnection with piping – 67 –In case of right or left piping In case of bottom right or bottom left pipingDrainage Indoor Unit Installation– 68 – NOTES Table of models that can be used in combination– 69 – 10-5-1.Installation Location 10-5.Installation of Outdoor Unit– 70 – – 71 – Draining the water– 72 – 10-5-2.Refrigerant Piping Connection– 73 – 10-5-3.Evacuating– 74 – 10-5-4.Wiring Connection– 75 – Miswiring Mis-pipingCheck10-6.Grounding 10-7.Check and Test OperationTest Operation Auto Restart SettingRemote Control Selector Switch Setting 10-8.TestOperation Gas Leak TestSelf-Diagnosisby LED Indication 10-9.USEFUL FUNCTIONS– 77 – – 78 – 11. HOW TO DIAGNOSE THE TROUBLE< Discharging method > – 79 –– 80 – 11-1-1.Confirmation of Power Supply11-1-2.Confirmation of Power Voltage 11-1.First ConfirmationNOTES 11-2.Primary Judgment11-3.Judgment by Flashing LED of Indoor Unit – 81 –– 82 – – 83 – 11-4-2.Caution at ServicingJudgment and action – 84 –Block distinction Operation of diagnosis function– 85 – 11-5.Judgment of Trouble by Every Symptom11-5-1.Indoor Unit Including Remote Controller <Confirmation procedure>Primary check – 86 –3 Only the indoor motor fan does not operate <Cause> <Inspection procedure>– 88 – 5 Troubleshooting for remote controller<Primary check> 1Outdoor unit does not operate – 89 –– 90 – <Check procedure>– 91 – 11-7.Trouble Diagnosis by Outdoor LED<Caution on High Voltage!!> 11-7.TroubleshootingHow to check output of the air purifier – 92 –Primary check – 93 –Operation check Item Diagnosis/Process flowchartContents – 94 –11-9-1.How to Check the P.C. Board Indoor Unit 11-9.How to Check Simply the Main Parts– 95 – Check points 3 Check procedures TableProcedure – 96 –11-9-2.P.C. Board Layout 1 Sensor characteristic table– 97 – 11-9-4.Outdoor Unit 11-9-3.Indoor Unit Other Parts– 98 – 11-9-5.Checking Method for Each Part + ~ ~– 99 – – 100 – 1.Symptom2. Cause – 101 – 12. HOW TO REPLACE THE MAIN PARTS12-1 Indoor Unit102 Proceduresinstallation plate <How to assemble the front panel>– 103 – – 104 – ProceduresNo. Part name – 105 – – 106 – 107 108 Cross flow <Caution at reassembling> Procedures– 109 – No. Part nameP.C. board layout 12-2Microcomputer – 110 –– 111 – 12-3.Outdoor UnitDetachment Procedures112 Part name113 – 114 – Remarks Procedures– 115 – Part name– 116 – – 117 – Remarks Procedures– 118 – Part nameRemarks – 119 –Outdoor unit main PCB MCC-5009 – 120 –Outdoor unit Sub PCB MCC-5009 – 121 –13-1.Indoor Unit 13. EXPLODED VIEWS AND PARTS LIST– 122 – – 123 – – 124 – 13-2.Outdoor Unit125 13-3.P.C. Board LayoutAppendix-1 Cord Heater Installation WorkSpecifications/Vendor AppendixAppendix-2 Specifications/VendorSpecifications AppendixAppendix 3. Cord heater installation wiring diagramAppendix-3 Appendix 4. Cord heater installation work procedurePhoto / Explanatory diagram ProcedureAppendix-5 Photo / Explanatory diagramProcedure AppendixAppendix-6 Photo / Explanatory diagramProcedure AppendixAppendix-7 Photo / Explanatory diagramProcedure AppendixAppendix Photo / Explanatory diagramProcedure Assembly11 28 11 18 Appendix5. Drawing of thermostat fixing plate 8 5.8Appendix-10 Appendix