Toshiba MMU-AP0091MH manuals
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Toshiba MMU-AP0091MH Service Manual
117 pages 3.69 Mb
SERVICE MANUAL2 CONTENTS WARNING 3 SAFETY CAUTION4 WARNING CAUTION 5 New Refrigerant (R410A)1. Safety Caution Concerned to New Refrigerant 2. Cautions on Installation/Service 3. Pipe Materials 6 4. ToolsTools exclusive for R410A (The following tools for R410A are required.) Q R S T U V W X Y Y General tools (Conventional tools can be used.) 7 5. Recharge of Refrigerant4mm-hexagonal wrench is required. Q R Q R[ Cylinder with siphon ] [ Cylinder without siphon ] 6. Environment 8 1. CONSTRUCTION VIEWS (EXTERNAL VIEWS)Space required for installation and servicing Drain-up standing-up size Note) Wired remote controller (RBC-AMT31E) 9 2. WIRING DIAGRAMDP ~ Control P.C. board for Indoor unit MCC-1402 10 3. PARTS RA TING3-1. Parts Rating 3-2. Name of Each PartAir outlet/Air outlet flap Air filter Clip Air inlet grille Earth screwSET DATA display Operation mode select display CHECK display Timer time display Timer SETIN setup display Filter display TEST run display Flap position display SWING display Set up temperature display Remote controller sensor display PRE-HEAT display Operation ready display No function display Air volume select display Mode select control display Central control display 11 2 155 78 9 3 1 4 6 10 11 13 16 12 14 173-3. Parts Name of Remote ControllerDisplay section 12 Operation sectionAir volume select button Timer set button Check button Fan button Filter reset button Wind direction and Swing Operation lamp button Operation select button Set up temperature button OPTION : 3-4. Correct UsagePreparationSelect air volume with FAN Select an operation mode with the MODE Push Turn on the main power switch and/or the leakage breaker. REQUIREMENT button. button. Determine the set up temperature by pushing the TEMP. or TEMP. button. Stop 13 1 3 2 414 3-5. Automatic Operation (Super Heat Recovery Type Only)Start button Mode select button (MODE) Temperature button NOTEWhen restarting the operation after stop Stop 15 3-6. TIMER OperationTimer operationPush Push TIMER SET button. to select SET TIME. Push SET button. Cancel of timer operation NOTICE 3-7. Adjustment of Wind DirectionHow to set up the air direction 16 1, 2, 3 4Every pushing the button, the air direction changes. In Heating operation In Cooling / Dry operation How to start swinging How to stop swinging 17 3-8. InformationConfirmation before operation Heating capacity Defrost during heating operation 3-minutes protection Power failure Fan rotation in stopped unit Protective device (High pressure switch)In cooling operation In heating operation Cooling/Heating operation of Super Modular Multi system air conditioner Characteristics of heating operation 18 3-9. Air Conditioner Operations and Performance19 3-10. When the Following Symptoms are FoundCheck the points described below before asking repair servicing. Symptom CauseIt is not a failure. Check again. Accessory parts and Parts to be procured locally 20 PRECAUTIONS FOR SAFETY21 SELECTION OF INSTALLATION PLACE WARNING CAUTION PRECAUTIONS FOR SAFETYInstallation space Ceiling heightInstallable ceiling height list In case of wireless type 22 INSTALLATION OF INDOOR UNIT WARNING SELECTION OF INSTALLATION PLACEDimensional view Ceiling opening and installation of hanging bolts How to use the supplied installation pattern 23 INSTALLATION OF INDOOR UNITExisting ceiling void New ceiling void Treatment of ceiling Installation of hanging bolt Installation of indoor unit Installation of ceiling panel (Sold separately) Installation of remote controller (Sold separately) 24 DRAIN PIPING WORKOKPipe material/Insulator and size NO GOODConnection of flexible hose NO GOODConnection of drain pipe Drain up Check the drainingWhen the electric work has finished: When the electric work has not finished: Thermal insulating process CAUTIONEnsure water is poured slowly. NO GOODOK DRAIN PIPING WORK 25 REFRIGERANT PIPING WARNINGIf refrigerant gas leaks during the installation work, ventilate the room immediately. After the installation work, confirm that refrigerant does not leak. Permissible pipe length and permissible height difference Piping material and dimensions Pipe flaringFlaringFlaring diam. meter size : A (Unit : mm) *Projection margin in flaring : B (Unit : mm) Connection of refrigerant pipe Airtight test/Air purge, etc. Open fully valves of the outdoor unit Gas leak check Heat insulating process REFRIGERANT PIPING 26 ELECTRIC WORK WARNING2. Ensure connection of earth wire. (Grounding work) CAUTIONEnsure an earth leakage breaker is installed. Power supply specificationsIndoor unit power supply (*1) Indoor/Outdoor inter-unit wiring, Central controller wiring (*2) (*3) Remote controller wiring (*4) CAUTION 27 ELECTRIC WORKCable connection Remote controller wiring Wiring between indoor and outdoor units NOTEAn outdoor unit that is inter-connected to the indoor units automatically becomes the header unit. Address setupSet up the addresses as per the Installation Manual supplied with the outdoor unit. Wiring on the ceiling panel 28 APPLICABLE CONTROLSNOTIFICATIONAutomatic address Applicable control setupBasic operation procedure for setup change In case of installation to high ceilingInstallable ceiling height list 29 APPLICABLE CONTROLSIn case of remote controller-less (Group control) Change of lighting time of filter sign Increased heating effect Group control NOTE 30 1, 52, 4 3 In case of wired remote controller How to execute test operation TEST RUNBefore test operationIn case of wireless remote controllerReceiver unit M4 25 screw (2 pieces) Small screw Spacer Notch Nameplate 31 TROUBLESHOOTINGConfirmation and check button. This will return the display back to its original mode. Confirmation of error historyCheck code Indoor unit No. in which an error occurred Procedure Description When pushing the and Check method Check code listTerminology : Lighting, : Flashing, l : Goes off New check code1. Difference between the new check code and the current system Display on wired remote controller Display on sensor part of wireless remote controller Display on 7-segment in outdoor unit 2. Special mention TROUBLESHOOTING 33 MAINTENANCEPrior to maintenance, ensure the power supply is turned off. CAUTIONDo not handle the buttons with wet hands as this will cause the risk of electric shock. Daily maintenanceCleaning of air filterIf is displayed on the remote controller, maintenance to the air filter is required. Clogging of the air filter decreases cooling/heating efficiency. After cleaning, push the . [4-way Air Discharge Cassette Type] 1, 2 3Cleaning of air outlet flap The air outlet flap can be removed to clean if necessary.Remove the air outlet flap. Clean the air outlet flap with water. Mount the air outlet flap. Be careful to insert the flap in the correct direction. Open the air inlet grille. Take out the air filter. Cleaning with water or vacuum cleaner Mount the air filter. Close the air inlet grille. Push the . 34 4. REFRIGERATING CYCLE DIAGRAM35 5. CONTROL OUTLINE5-1. Control Specifications 39 6. APPLIED CONTROL<Procedure> Execute the setup operation while the unit stops. TYPE Indoor unit capacity 41 6-2. Applied Control in Indoor UnitnRemote location ON/OFF control box (TCB-IFCB-4E)[Wiring and setup] (1) Control items (2) Wiring diagram using remote control interface (TCB-IFCB-4E) nVentilating fan control from remote controller[Function]Pushing Push Every pushing + Push concurrently (1) Operation buttons for 4 seconds or more. button, the indoor unit numbers in group control are displayed succes- sively. Using the setup temp or button, specify the item code !. Using the timer time or button, select the setup data. (At shipment: ) button. (OK if display goes on.) returns the status to the usual stop status. (2) Wiring 42 43 nLeaving-ON prevention control[Function] (1) Control items (2) Operation buttons for 4 seconds or more. Using the setup temp or button, specify the item code - . Using the timer time or button, set to the setup data. button. button. (The status returns to the usual stop status.) (3) Wiring nPower peak-cut from indoor unit 44 7. TROUBLESHOOTING7-1. Troubleshooting SummaryTrouble Check the check display 1. Before troubleshooting Q R S2. Troubleshooting procedureon the interface P.C. board of the outdoor unit. Check position or part in which trouble occurred. 45 7-2. Check MethodllIPDU communication error I/F Check code list 48 The check code1. The TCC LINK check code | < Display in wired remote controller > <Display on sensor part in wireless remote controller> <Display on 7-segment in outdoor unit> 2. Special mention 49 7-3. Troubleshooting by Check Display on Remote Controller54 (*1) All stop only in case of the header unit The follower unit continues operation.57 MG-SW : Magnet Switch, OCR : Over-current Relay63 Error detected by TCC-LINK central control device64 Cautions when servicing for compressorHow to check inverter output How to check resistance of compressor winding How to check the outdoor fan motor 65 7-5. Diagnosis Procedure for Each Check Code[E03] [E04] [E01]Correct the communication cabling. YES Remote controller sending error indoor and remote controller (Detected at remote controller side) [E02] indoor and remote controller (Detected at indoor side) Indoor/Outdoor communication circuit error (Detected at indoor side) 66 [E06][E07] Decreased number of indoor units (NOTE) Indoor/Outdoor communication circuit error (Detected at outdoor side) 67 [E08]Automatic address start error [E15] [E12] Duplicated indoor addresses [E10] [E09]Correct communication line. Correct wire connection. Duplicated master remote controller Communication error in indoor P.C. board Assy No corresponding indoor unit during automatic address 68 [E16][E18] Header outdoor units quantity error [E19] indoor header and follower Connected indoor units capacity over Reference) 69 [E20][E25] Terminal outdoor unit error [E28] Unit connected to other line during automatic address [E26] [E23] Communication sending error between outdoor units Decrease of connected outdoor units 1)How to clear the error Duplicated address setup of terminal outdoor units 70 [E31]Indoor TCJ sensor error Indoor TC2 sensor error [F02] Indoor TC1 sensor error [F03] [F01] IPDU communication error Auxiliary code :YES YES NO NO Correct connection of connector. Replace TCJ sensor. Indoor unit temperature sensor characteristics See Characteristics-2.YES YES NO NO Correct connection of connector. Replace TC1 sensor. Indoor unit temperature sensor characteristics See Characteristics-2. 72 [F15]Ps sensor error Indoor other error [F29] Pd sensor error [F24] [F23] Outdoor temp sensor miscabling (TE1, TL) [F16] Outdoor pressure sensor miscabling (Pd, Ps) [F31] Compressor error (Lock) [H03] [H02] Outdoor EEPROM error Compressor breakdown [H01]Check I/F P.C. board. NO YES Check power voltage and line. Correct power line. Check external noise, etc. Is there any trouble of outdoor unit power supply? Note 1 Details of compressor power connecting section 73 SC RCurrent detective circuit system error 74 [H04] [H14]Low-pressure protective operation [H06] Compressor 1 case thermo operation Compressor 2 case thermo operation [H07] Oil level down detection protection 75 ( )( )(*1) a) Leakage check for SV3A valve (For multiple outdoor unit system) b) Leakage check for SV3C valve c) Clogging check for SV3B valve (For multiple outdoor unit system) d) Clogging for SV3E valve (*2) Clogging check for SV3D valve of oil return circuit from oil separator a) Oil return circuit b) Clogging check for SV3D valve [H08] b) Leakage check for SV3C valve (*4) a) Clogging check for oil-equalization circuit Oil level detective temperature sensor error TK1 temperature detective circuit error (Auxiliary code : 01) 76 ( )Oil level detective circuit system error (Auxiliary code : 02) 77 ( )TK3 temperature detective circuit error (Auxiliary code : 03) ( )TK4 temperature detective circuit error (Auxiliary code : 04) Duplicated setup of outdoor line address [L06] [L05] [L04] 78 ( )(Refer to Address setup.) YES Duplicated indoor header units [L03]YES NO NO Correct the line address setup. Correct the cable connection. Duplicated indoor units with priority (Displayed on indoor unit with priority) 79 [L07]Outdoor capacity unset [L17] Indoor capacity unset [L09] [L10] Group line in individual indoor unit Indoor group / address unset [L08] Inconsistent models of outdoor units 80 [L20]IPDU quantity error [L29] Flow selector unit system error [L28] [L18] Duplicated central control addresses Quantity over of connected outdoor units 81 [L30]Does outside device correctly operate? Check cause of the operation. Extended IC error [L31] Indoor fan motor error [P01]Check outdoor I/F P.C. board.Is outside device connected to connector CN80? Check indoor P.C. board. YES Failure Replace Check outside device. Failure Replace YES NO NO Is there any trouble of outdoor unit power supply? Check power voltage and line. Check auxiliaty noise, etc. NO YES Interlock in indoor unit from outside Discharge temp TD1 error [P03] [P04] ( )Actuation of high-pressure SW Open phase, negative phase [P05] 82 ( )AC All heating operation ( )83 [P12]Heat sink overheat error Indoor overflow error [P10] [P07] Indoor fan motor error CN333 CN334 [P13] 84 ( )[P15] Outdoor liquid back detection error Gas leak detection TS condition (Auxiliary code : 01) [P15] Discharge temp TD2 error [P17] 85 ( )Gas leak detection TD condition (Auxiliary code : 02) ( ) ( )86 [P19]High-pressure protective operation [P20] 4-way valve operation error COutdoor fan IPDU error [P22] 87 ( ) ( )88 [P26][P29] [P31] G-Tr short-circuit protection error Compressor position detective circuit error Other indoor error (Group follower unit error) 89 7-6. 7-Segment Display Function93 7-7. Sensor CharacteristicsIndoor Unitn7-segment display A, BDisplay A D600 D601 D602 D603 D604 Display B 94 8. CONFIGURATION OF CONTR OL CIRCUIT8-1-1. Indoor Controller Block Diagram 8-1. Indoor Unit 99 9. DETACHMENTS9-1. Indoor UnitMMU-AP0071MH, AP0091MH, AP0121MH, AP0151MH, AP0181MH Ceiling panel: RBC-UM11PG-E 108 10. P.C. BOARD EXCHANGE PR OCEDURES10-1. Exchange of P.C. Board for Indoor ServiceRequirement at exchange of P.C. board assembly for indoor service Method 1 109 Method 2Before exchange, it is impossible to read out the setup contents due to EEPROM error. Procedure 1 : Readout setup contents from EEPROMItem code necessary at minimum <Remote controller operation diagram> Procedure 2 : Exchange of P.C. board for service 110 (Case 1) (Case 2) 112 ( )Indoor unit capacity Item code [11] ~ 113 11. EXPLODED VIEWS AND PARTS LIST
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