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Toshiba MMU-AP0091H service manual 205, Nitrogen, Pressure

Models: MMU-AP0091H

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Page 205

Propeller fan

FM Fan motor

Sensor

(TE1)

(Right side)

Strainer

Sensor

Main heat exchanger

(TO)

Pulse motor valve

(Left side)

Solenoid valve

Main heat exchanger

(PMV1) (PMV2)

(SV12)

Strainer

Auxiliary heat exchanger (Right side)

A

Check

(PMV3)

Auxiliary heat exchanger (Left side)

4-Way valve

Strainer

valve

Check

valve

Solenoid

Solenoid

Capillary

Low-

valve

valve

Sensor

(SV11)

tube

pressure

(SV5)

(TS1)

sensor

High-pressure

Check

Sensor

valve

sensor

Solenoid valve

(TS2)

Check

Solenoid

Capillary

Check joint

Sensor

(SV2)

joint

valve

tube

(TL)

(SV6)

Capillary tube

Strainer

Capillary tube

Oil

Nitrogen

Solenoid valve

separator

(SV3D)

Strainer

pressure

Capillary tube

Liquid

Check

Check

Solenoid valve

tank

Solenoid valve

valve

valve

(SV42)

(SV41)

I

High-

High-

Accumulator

pressure

pressure

Check

switch

Capillary

Solenoid

switch

joint

Sensor

tube

valve

Sensor

(TD1)

(SV3C)

(TD2)

1

Sensor

2

Compressor

(Inverter)

Compressor

(Inverter)

Nitrogen

(TK3)

Strainer Strainer

pressure

Check

Check

valve

valve

Capillary

Capillary

tube

tube

Sensor

Sensor

(TK1)

(TK2)

Solenoid

Sensor

Oil tank

valve

(TK4)

(SV3E)

Capillary tube

Capillary tube

Strainer

Strainer

Solenoid

valve

(SV3A)

Check

Solenoid

Strainer

valve

valve

(SV3B)

Check

valve

Service

Service

Service

Service

valve of

valve at

valve at

valve at

H

G

E

F

balance

liquid

discharge

suction

pipe

side

gas side

gas side

B

C

D

H

205

Image 205

Toshiba MMU-AP0091H service manual 205, Nitrogen, Pressure

Contents

MMD-AP0071SPH, AP0091SPH, AP0121SPH MMD-AP0181H, AP0241H, AP0271H MMD-AP0361H, AP0481HMMC-AP0151H, AP0181H, AP0241H MMC-AP0271H, AP0361H, AP0481H MML-AP0071H, AP0091H, AP0121H MML-AP0151H, AP0181H, AP0241HCheck of Concentration Limit Contents Explanation of illustrated marks Explanation of indicationsConfirmation of warning label on the main unit Indication ExplanationNever recover the refrigerant into the outdoor unit ∗ For details, refer to the parts listDo not modify the products For spare parts, use those specified ∗Metal section Earth position Check the following items after reinstallationSide Limit even if the refrigerant leaksNew Refrigerant R410A Safety Caution Concerned to New RefrigerantPipe Materials ToolsEnvironmental concern Recharge of Refrigerant4mm-hexagonal wrench is required Cylinder with siphon Cylinder without siphonOperation mode Outline Operation modeOutdoor units Component Multi Using High-efficiency Refrigerant R410ACombination of outdoor units Branching joints and headersIndoor units Flow selector units FS unitRBM-Y1121FE RBM-Y1801FEMMD-AP0241H Remote controllers Unit IndoorWay Air Discharge Cassette TypeAP0481WH AP0151WH AP0241WH, AP0271WH, AP0301WH AP0071WH, AP0091WH, AP0121WHAP0181WH Indoor control P.C. boardAP0071YH, AP0091YH, AP0121YH Compact typeColor IndicationModel MMU-AP0151SH, AP0181SH, AP0241SH Symbol Parts nameNetwork adapter OptionWay Air Symbol Parts nameDuct Standard Type ConcealedAP0481BH, AP0561BH AP0241BHConcealed Duct High Static Pressure Type Symbol Parts nameModel MMD-AP0181H, AP0241H, AP0271H, AP0361HCeiling Type UnderAP0241H, AP0271H, AP0361H AP0151H, AP0181HAP0121H, AP0151H, AP0181H, AP0241H High Wall TypeModel MMK-AP0071H, AP0091H Model MMK-AP0072H AP0122HAP0092H AP0151H, AP0181H, AP0241H Floor Standing Cabinet TypeModel MML-AP0071H, AP0091H, AP0121H ColorModel MML-AP0071BH, AP0091BH, AP0121BH Floor Standing Concealed TypeAP0151BH, AP0181BH, AP0241BH Color indicationAP0241H, AP0271H, AP0361H, AP0481H, AP0561H Symbol Parts nameModel MMF-AP0151H, AP0181H ColorAP0091SPH, AP0121SPH,AP0151SPH Model MMD-AP0071SPHFor undoor unit Color indicationModel MMY-MAP0801FT8 Outdoor UnitMAP1001FT8, MAP1201FT8 Parts layoutModel RBM-Y1122FE, Y1802FE, Y2802FE Flow Selector Unit FSWay Air Discharge Cassette Type Indoor UnitConcealed Duct Standard Type Way Air Discharge Cassette Compact type TypeSlim Duct Type Concealed Duct High Static Pressure TypeUnder Ceiling Type High Wall TypeFloor Standing Concealed Type Floor Standing Cabinet TypeFloor Standing Type Outdoor Control Unit Heat Recovery ModelFlow Selector Unit FS Unit MAP0802FT8 MAP1002FT8 MAP1202FT8Front side Rear side Parts Layout in Outdoor UnitIndoor Unit Name of Each PartSold Separately Parts Outdoor Unit Parts Name of Remote ControllerDisplay section Operation section Correct UsagePreparation StopHow to set up the air direction Adjustment of Wind DirectionHow to start louvre swinging How to stop louver swingingHow to start swinging How to set up the air flow directionHow to stop swinging Adjustment of air direction upward/downwardAdjustment of air Flow direction Upwards/Downwards Right/Left air direction adjustmentAdjustment of air Flow direction rightwards/leftwards Setup of air direction and swingingTimer operation Timer OperationCancel of timer operation Maintenance InstallationCleaning of main unit / remote controller Cleaning the air inlet grilleHigh Wall Type Model 1H series Model 2H seriesAir Conditioner Operations and Performance When the Following Symptoms are Found Re-InstallationAir conditioner operating conditions Procedure Description Confirmation of error historyConfirmation and check Model MMY-MAP0802FT8, MAP1002FT8, MAP1202FT8 Inverter Unit 8, 10, 12HPFunctional part name Functional outline Explanation of Functional PartsOperation mode Outline Operation modeSVS SVDSvdd SvssTC2 TC1TCJ Selection of operation mode Refrigerant Piping Systematic Diagram in SystemON-OFF list of Flow Selector Unit FS Unit valve All cooling operation Operation of cooling only High outside temperature 10C or more CriterionOutdoor unit Flow selector/Indoor unit Cooling thermo.-ON StopOFF SV3E Low outside temperature 15C or less CriterionCooling thermo.-ON Stop Flow selector/Indoor unitSV3B SV5 OFF SV3C SV6 All heating operation Operation of heating onlyFlow selector/Indoor unit Heating thermo.-ON Heating thermo.-OFFHeating thermo.-ON Mainly Cooling, Partly Heating OperationOutdoor unit Flow selector/Indoor unit Mainly Heating, Partly Cooling OperationCooling thermo.-ON Heating thermo.-ON Stop Flow selector/Indoor unit Cooling thermo.-ON Others DefrostOutline of specifications Remarks Control SpecificationsRemote controller Control outline Command Allcooling All heatingTC1 Reset conditionsTCB-AX21E Central control mode Central control mode 1 Cannot operateCentral control mode 4 Cannot select mode Operation explanation and applied data, etc Remarks Operation Start/Operation EndOil SV2 Operation explanation and applied data, etc Remarks Operation explanation and applied data, etc Remarks Ipdu Other cautions Cooling operation in low ambient temperaturesRelease control list PMV Pulse Motor Valve for outdoor unitHeader outdoor unit MMY-MAP1202FT8 Unit to send oil Oil equation control schematic diagramFollower outdoor unit MMY-MAP1202FT8 Unit to Received oilEvery pushing Procedure Execute the setup operation while the unit stopsHEAT, Heat → Cool Description At shipmentItem code Indoor unit capacitySetup data How to Set Up the Cooling Only Indoor UnitCooling Only setup Heat pump DescriptionUsage/Features Setting When Connecting Multiple Indoor Units to a FS unitHow to set up Item code Push Vent + Test buttons simultaneously for Seconds or moreSVS OFF Case of not setting 01 to Item code 0ESVD OFF SVD OFF Svdd SVSWiring diagram using remote control interface TCB-IFCB-4E Wiring and setupApplied Control in Indoor Unit Remote location ON/OFF control box TCB-IFCB-4EWiring Ventilating fan control from remote controllerFunction OperationUsing the setup temp Using the timer timeButton, set to the setup data Leaving-ON prevention controlOutdoor fan High Static Pressure Shift Applied Control in Outdoor UnitFunction Switch No Bit Connector No Used control P.C. board Outdoor unit interface P.C. board Connector position detailSetup when Power peak-cut control requested Power Peak-cut Control StandardRelay contact capacity of operation port Outdoor unit interface P.C. boardSetup at power peak-cut control expansion request Power Peak-cut Control ExpansionSW1 SW2 CN513Terminal Input signal Operation Input signal OperationSnowfall Fan Control External master ON/OFF controlNight Operation Control Operation Mode Selection ControlCool OFF Night operation sound Capacity Reduction dB aMain check items for electric wiring Procedure and Summary of Test OperationCheck Items before Test Operation Case that a center controlAdditional amount of refrigerant by pipe length Check listCorrective amount of refrigerant by system capacity Additional amount of refrigerantAddress Setup Check at Main Power-ONAddress Setup and Check Procedure Check on outdoor unitAddress setup procedure Address Setup ProcedureLine address switch on outdoor interface P.C. board Operation procedure Turn on the power Wiring example in 2 linesPush SET button Group addressUsing the setup temp Using Unit + SWING/FIX buttons, select the line AddressUsing Button to Operation procedure Confirm the changed contentsPush Test button to finish the procedure Push SET button to determine the setup dataEnd Displayed. Only fan of the selected indoor unit operatesSW01 SW02 SW03 SW04 Setup procedureCheck Code is Displayed on the Remote Controller Troubleshooting in Test OperationCheck code Cause CountermeasuresCause Countermeasures Remote SegmentStatus Cause Countermeasures DisplayRemote Header unit Incorrect example Incorrect wiring example FigController status Segment display Status Incorrect exampleFan Operation Check Test Operation CheckCooling/Heating Test Operation Check Test operation start/stop operationTurn OFF the power to the air conditioner Wireless remote controllerButton on the wireless remote controller Test operation from outdoor unitTest cooling operation Test heating operation Procedure Description100 Test operation101 Function Outline Setup/Release Segment display Service Support FunctionFunction to Start/Stop ON/OFF Indoor Unit from Outdoor Unit 102All cooling test operation function Operation procedureAll heating test operation function 103104 Batch start/stop ON/OFF functionSW01 SW02 SW03 Units to be operated 105Error clearing in indoor unit Error Clearing FunctionMethod Section aClearing from the interface P.C. board Clearing of error check code by power reset107 Distinction procedure Remote Controller Distinction Function108 Operation Clear Solenoid Valve Forced Open/Close Function in Outdoor Unit110 Heater111 Fan Operation Check in Outdoor UnitSW01 SW02 SW03 Fan stepCase to operate the fan in the erroneous outdoor unit only ReleaseCase to operate the fans in all the normal outdoor units 112Service support function list Manual Adjustment Function of Outside Temp to SensorFunction contents 113Indoor Fan Operation Check Function Indoor Fan Only Operating Mode114 Contents Monitor Function of Remote Controller SwitchProcedure Calling of display screenBefore troubleshooting Troubleshooting SummaryTroubleshooting procedure 116Check Method Check code list117 118 119 Error detected by TCC-LINK central control deviceMain Outdoor 7-segment display Sensor block display DeviceNew check code Case of wired remote controller RBC-AMT31E Troubleshooting by Check Display on Remote ControllerConfirmation of error history Confirmation and check122 Case of central remote controller TCB-SC642TLECase of AI-NET central remote controller 124 Error detection condition Check item positionCheck code Check code nameSetup method of No. capacity-over detection Error detection condition Check item position125 Convenient functions126 Status Error detection condition Check item positionOutdoor 7-segment display 127 Detected Check code name 128129 Error detection conditionStatus Check all the outdoor units in the corresponding line130 Check code Detected Main Outdoor 7-segment display 131Remote Central control Controller Check code Name 132Heating 133134 Check code Status Error detection Check item positionName Condition Sub-code C 135Sub-code D Sub-code EError detected by AI-NET central control device 136 Error detected by TCC-LINK central control deviceError detection Check item position ControllerHow to check resistance of compressor winding How to check inverter outputHow to check the outdoor fan motor 137138 Diagnosis Procedure for Each Check CodeE06 139E07 Detected at outdoor side140 E16 141E18 / 97/99 E19142 Indoor TC2 sensor error Indoor TCJ sensor errorF03 Indoor TC1 sensor error 143144 145 F31 / 1C H02 / 1d Compressor error LockH01 / 1F 146H14 Compressor 2 case thermo operation 147H06 Low-pressure protective operation Low oil level protection 148Leakage check for SV3C valve Clogging check for SV3E valve149 150 TK3 temperature detective circuit errorL05 151L03 L06152 153 L18 / 8A Flow selector unit system errorL20 L28P01 Indoor fan motor error L31 Extended IC error154 L30 / b6155 P05 / AF Open phase, negative phaseP04 Actuation High-pressure SWP10 / 0b Indoor overflow error P07 / 1C Heat sink overheat errorIndoor fan motor error 156157 P13 Outdoor liquid back detection error 1. PMV1/PMV2 errorP15 / AE Gas leak detection158 P17 / bb Discharge temp TD2 errorP15 / AE Gas leak detection TD condition Sub-code159 P19 Way valve operation errorP20 High-pressure protective operation Judgment criteria160 P22 / 1A Outdoor fan Ipdu errorDetective circuit error P26 Tr short-circuit protection error161 P29 Compressor position162 Segment Display Function How to read the check display Segment displaySegment display on the outdoor unit Interface P.C. board 163164 SW01 SW02 SW03 Display contents165 SW03 SW02 Indoor address Segment display a 166Temperature sensor characteristics Sensor CharacteristicsOutdoor Unit Segment display A, BLead wire color Pressure sensor characteristicsIndoor Unit 168Pressure Sensor Output Check Pd sensor characteristics169 MPa Kg/cm²170 Ps sensor characteristics171 Flow Selector Unit FS UnitMay become 172Detection Flow Almost normal Cooled 173 ReferenceRefrigerant Wired remote controller Indoor Controller Block DiagramWeekly timer SeriesWeekly timer Wired remote controller Up to 2 units175 Slim DuctType 176Series 177 178 Wired remote controllerSlimDuctType 179 MCC-1402 Indoor P.C. BoardType Eeprom 181Disp CHKMCC-1431-01 Flow Selector Unit P.C. Board182 Function Connector Pin Specifications Remarks Optional Connector Specifications of Indoor P.C. Board183 DC12V COMSV3D SV3E 184Uart RMV185 Inverter P.C. board MCC-1502 IPDU1, IPDU2186 Power supply P.C. board for fan MCC-1439187 Part type Exchange contentsCompressor Backup Setup Before Backup OperationProcedure OutlineSet up procedure for the malfunctioning outdoor unit Backup Setup for Outdoor Unit189 Display example Operation procedureSegment display oil level results 190Before Refrigerant Recovery Operation Refrigerant Recovery in the Malfunctioning Outdoor UnitRefrigerant Recovery Procedure Set up the malfunctioning outdoor unit as followsSet up all other outdoor units as follows Select an outdoor unit for pressure adjustment as followsSetup for outdoor unit for adjustment of pressure 192Set up the unit selected as the header unit as follows Refrigerant recovery procedure backup193 194 Setup for header unit195 Refrigerant amount to be recovered = 37.5 28.0 = 9.5 kgSystem Combination of outdoor units Refrigerant amount 196 Process after Repair197 Trouble by leakageUnit issuing Check code to be detected Phenomena Check code Corresponding unit198 Never recover the refrigerant into outdoor unit Compressor Replacing Procedure Outline199 Exchanging a compressor Replacing CompressorRemoval of defective compressor 200201 Color check of oil in the defective compressorMeasurement of oil amount in the normal compressor Adjustment of oil amount in the service compressor202 Vacuuming Case of single outdoor system Installation of compressorCase of multiple outdoor unit systems Full opening of PMV1, PMV2Check items Position Procedure Procedure to Identify the Cause of Compressor Oil Shortage204 Nitrogen 205Pressure 206 ReassemblyRemarks Disassembling207 Work procedure RemarksFan motor Part to beDisassembling Example 208Heat exchanger Right 209 Reassembly and cautionsExchange of service P.C. board Inverter assembly210 211 Temperature Front side of air conditioner sensor posi Work procedure212 SV3C SV3A SV3B213 Temperature Rear side of air conditionerUsed positions of SUS fixing band Total 5 positions 214 AssemblyPull the accumulator upwards 215216 Exchange procedure Exchange of P.C. Board for Indoor Service217 Remote controller operation diagram Procedure 1 Readout setup contents from Eeprom219 Procedure 2 Exchange of P.C. board for serviceEeprom layout Procedure 3 Writing-in of setup contents to Eeprom221 Type Indoor unit capacity Item codeHow to Check Outdoor Fan Motor How to Check Inverter OutputHow to check resistance or compressor winding Part name ProcedureHow to check fan power supply P.C. board MCC-1439 How to Check Fan Power Supply P.C. Board and Fan IpduHow to check fan Ipdu MCC-1439 Front ViewReplacement steps Interface Board Replacement ProcedureDip Switch Setting contents 224225 Comp-IPDU Board Replacement Procedure ManualComp-IPDU No SW801 Bit COMP-IPDU No.1 226COMP-IPDU No.2 227 Inverter Assembly ConfigurationToshiba Carrier Corporation