Contents

	CONTENTS
SAFETY CAUTION		4
1.	OUTLINE	9
2.	WIRING DIAGRAM	14
3.	PARTS RATING	30
4.	REFRIGERANT PIPING SYSTEMATIC DRAWING	48
5.	SYSTEM REFRIGERANT CYCLE DRAWING	53
6.	CONTROL OUTLINE	60
7.	APPLIED CONTROL	71
8.	TEST OPERATION	86
9.	TROUBLESHOOTING	116
10.	CONFIGURATION OF CONTROL CIRCUIT	174
11.	BACKUP OPERATIONS (EMERGENCY OPERATION)	188
12.	OIL LEVEL JUDGMENT DISPLAY	190
13.	REFRIGERANT RECOVERY
	WHEN REPLACING THE COMPRESSOR	191
14.	LEAKAGE/CLOGGING OF OIL-EQUALIZATION CIRCUIT	197
15.	REPLACING COMPRESSOR	199
16.	REPLACING PROCEDURE OF PARTS	206
17.	P.C. BOARD	217

NOTE

Ensure power is isolated from the unit when replacing the high performance filter or when opening the service panel.

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Contents

MML-AP0071H, AP0091H, AP0121H MML-AP0151H, AP0181H, AP0241H MMD-AP0181H, AP0241H, AP0271H MMD-AP0361H, AP0481HMMD-AP0071SPH, AP0091SPH, AP0121SPH MMC-AP0151H, AP0181H, AP0241H MMC-AP0271H, AP0361H, AP0481H Check of Concentration Limit Contents Indication Explanation Explanation of indicationsExplanation of illustrated marks Confirmation of warning label on the main unit For spare parts, use those specified ∗ ∗ For details, refer to the parts listNever recover the refrigerant into the outdoor unit Do not modify the products Limit even if the refrigerant leaks Check the following items after reinstallationMetal section Earth position Side Tools Safety Caution Concerned to New RefrigerantNew Refrigerant R410A Pipe Materials Cylinder with siphon Cylinder without siphon Recharge of RefrigerantEnvironmental concern 4mm-hexagonal wrench is required Operation mode Outline Operation mode Branching joints and headers Component Multi Using High-efficiency Refrigerant R410AOutdoor units Combination of outdoor units RBM-Y1801FE Flow selector units FS unitIndoor units RBM-Y1121FE MMD-AP0241H Remote controllers Air Discharge Cassette Type IndoorUnit Way Indoor control P.C. board AP0241WH, AP0271WH, AP0301WH AP0071WH, AP0091WH, AP0121WHAP0481WH AP0151WH AP0181WH Indication Compact typeAP0071YH, AP0091YH, AP0121YH Color Option Symbol Parts nameModel MMU-AP0151SH, AP0181SH, AP0241SH Network adapter Way Air Symbol Parts name AP0241BH ConcealedDuct Standard Type AP0481BH, AP0561BH MMD-AP0181H, AP0241H, AP0271H, AP0361H Symbol Parts nameConcealed Duct High Static Pressure Type Model AP0151H, AP0181H UnderCeiling Type AP0241H, AP0271H, AP0361H High Wall Type AP0121H, AP0151H, AP0181H, AP0241HModel MMK-AP0071H, AP0091H AP0122H Model MMK-AP0072HAP0092H Color Floor Standing Cabinet TypeAP0151H, AP0181H, AP0241H Model MML-AP0071H, AP0091H, AP0121H Color indication Floor Standing Concealed TypeModel MML-AP0071BH, AP0091BH, AP0121BH AP0151BH, AP0181BH, AP0241BH Color Symbol Parts nameAP0241H, AP0271H, AP0361H, AP0481H, AP0561H Model MMF-AP0151H, AP0181H Color indication Model MMD-AP0071SPHAP0091SPH, AP0121SPH,AP0151SPH For undoor unit Parts layout Outdoor UnitModel MMY-MAP0801FT8 MAP1001FT8, MAP1201FT8 Model RBM-Y1122FE, Y1802FE, Y2802FE Flow Selector Unit FS Way Air Discharge Cassette Type Indoor Unit Concealed Duct Standard Type Way Air Discharge Cassette Compact type Type High Wall Type Concealed Duct High Static Pressure TypeSlim Duct Type Under Ceiling Type Floor Standing Cabinet Type Floor Standing Concealed TypeFloor Standing Type MAP0802FT8 MAP1002FT8 MAP1202FT8 Heat Recovery ModelOutdoor Control Unit Flow Selector Unit FS Unit Front side Rear side Parts Layout in Outdoor Unit Name of Each Part Indoor UnitSold Separately Parts Parts Name of Remote Controller Outdoor UnitDisplay section Stop Correct UsageOperation section Preparation How to stop louver swinging Adjustment of Wind DirectionHow to set up the air direction How to start louvre swinging Adjustment of air direction upward/downward How to set up the air flow directionHow to start swinging How to stop swinging Setup of air direction and swinging Right/Left air direction adjustmentAdjustment of air Flow direction Upwards/Downwards Adjustment of air Flow direction rightwards/leftwards Timer Operation Timer operationCancel of timer operation Maintenance Installation Model 2H series Cleaning the air inlet grilleCleaning of main unit / remote controller High Wall Type Model 1H series Air Conditioner Operations and Performance Re-Installation When the Following Symptoms are FoundAir conditioner operating conditions Confirmation of error history Procedure DescriptionConfirmation and check Model MMY-MAP0802FT8, MAP1002FT8, MAP1202FT8 Inverter Unit 8, 10, 12HP Functional part name Functional outline Explanation of Functional Parts Operation mode Outline Operation mode Svss SVDSVS Svdd TC1 TC2TCJ Refrigerant Piping Systematic Diagram in System Selection of operation modeON-OFF list of Flow Selector Unit FS Unit valve Flow selector/Indoor unit Cooling thermo.-ON Stop High outside temperature 10C or more CriterionAll cooling operation Operation of cooling only Outdoor unit Flow selector/Indoor unit Low outside temperature 15C or less CriterionOFF SV3E Cooling thermo.-ON Stop Heating thermo.-OFF All heating operation Operation of heating onlySV3B SV5 OFF SV3C SV6 Flow selector/Indoor unit Heating thermo.-ON Heating thermo.-ON Mainly Cooling, Partly Heating Operation Mainly Heating, Partly Cooling Operation Outdoor unit Flow selector/Indoor unitCooling thermo.-ON Heating thermo.-ON Stop Flow selector/Indoor unit Cooling thermo.-ON Others Defrost Allcooling All heating Control SpecificationsOutline of specifications Remarks Remote controller Control outline Command TC1 Reset conditions TCB-AX21E Central control mode 1 Cannot operate Central control modeCentral control mode 4 Cannot select mode Operation explanation and applied data, etc Remarks Operation Start/Operation End Oil SV2 Operation explanation and applied data, etc Remarks Operation explanation and applied data, etc Remarks Ipdu PMV Pulse Motor Valve for outdoor unit Cooling operation in low ambient temperaturesOther cautions Release control list Received oil Oil equation control schematic diagramHeader outdoor unit MMY-MAP1202FT8 Unit to send oil Follower outdoor unit MMY-MAP1202FT8 Unit to Every pushing Procedure Execute the setup operation while the unit stops HEAT, Heat → Cool Description At shipment Item code Indoor unit capacity Description How to Set Up the Cooling Only Indoor UnitSetup data Cooling Only setup Heat pump Push Vent + Test buttons simultaneously for Seconds or more Setting When Connecting Multiple Indoor Units to a FS unitUsage/Features How to set up Item code SVD OFF Svdd SVS Case of not setting 01 to Item code 0ESVS OFF SVD OFF Remote location ON/OFF control box TCB-IFCB-4E Wiring and setupWiring diagram using remote control interface TCB-IFCB-4E Applied Control in Indoor Unit Operation Ventilating fan control from remote controllerWiring Function Leaving-ON prevention control Using the timer timeUsing the setup temp Button, set to the setup data Outdoor fan High Static Pressure Shift Applied Control in Outdoor Unit Function Switch No Bit Connector No Used control P.C. board Outdoor unit interface P.C. board Connector position detail Outdoor unit interface P.C. board Power Peak-cut Control StandardSetup when Power peak-cut control requested Relay contact capacity of operation port CN513 Power Peak-cut Control ExpansionSetup at power peak-cut control expansion request SW1 SW2 External master ON/OFF control Input signal OperationTerminal Input signal Operation Snowfall Fan Control Night operation sound Capacity Reduction dB a Operation Mode Selection ControlNight Operation Control Cool OFF Case that a center control Procedure and Summary of Test OperationMain check items for electric wiring Check Items before Test Operation Additional amount of refrigerant Check listAdditional amount of refrigerant by pipe length Corrective amount of refrigerant by system capacity Check on outdoor unit Check at Main Power-ONAddress Setup Address Setup and Check Procedure Address Setup Procedure Address setup procedureLine address switch on outdoor interface P.C. board Group address Turn on the power Wiring example in 2 linesOperation procedure Push SET button Button to Operation procedure Confirm the changed contents Using Unit + SWING/FIX buttons, select the line AddressUsing the setup temp Using Displayed. Only fan of the selected indoor unit operates Push SET button to determine the setup dataPush Test button to finish the procedure End SW01 SW02 SW03 SW04 Setup procedure Cause Countermeasures Troubleshooting in Test OperationCheck Code is Displayed on the Remote Controller Check code Display Remote SegmentCause Countermeasures Status Cause Countermeasures Status Incorrect example Incorrect wiring example FigRemote Header unit Incorrect example Controller status Segment display Test operation start/stop operation Test Operation CheckFan Operation Check Cooling/Heating Test Operation Check Test operation from outdoor unit Wireless remote controllerTurn OFF the power to the air conditioner Button on the wireless remote controller Test cooling operation Test heating operation Procedure Description 100 Test operation 101 102 Service Support FunctionFunction Outline Setup/Release Segment display Function to Start/Stop ON/OFF Indoor Unit from Outdoor Unit 103 Operation procedureAll cooling test operation function All heating test operation function 104 Batch start/stop ON/OFF function SW01 SW02 SW03 Units to be operated 105 Section a Error Clearing FunctionError clearing in indoor unit Method Clearing of error check code by power reset Clearing from the interface P.C. board107 Remote Controller Distinction Function Distinction procedure108 Operation Heater Solenoid Valve Forced Open/Close Function in Outdoor UnitClear 110 Fan step Fan Operation Check in Outdoor Unit111 SW01 SW02 SW03 112 ReleaseCase to operate the fan in the erroneous outdoor unit only Case to operate the fans in all the normal outdoor units 113 Manual Adjustment Function of Outside Temp to SensorService support function list Function contents Indoor Fan Only Operating Mode Indoor Fan Operation Check Function114 Calling of display screen Monitor Function of Remote Controller SwitchContents Procedure 116 Troubleshooting SummaryBefore troubleshooting Troubleshooting procedure Check code list Check Method117 118 Device Error detected by TCC-LINK central control device119 Main Outdoor 7-segment display Sensor block display New check code Confirmation and check Troubleshooting by Check Display on Remote ControllerCase of wired remote controller RBC-AMT31E Confirmation of error history 122 Case of central remote controller TCB-SC642TLE Case of AI-NET central remote controller Check code name Error detection condition Check item position124 Check code Convenient functions Error detection condition Check item positionSetup method of No. capacity-over detection 125 Status Error detection condition Check item position 126Outdoor 7-segment display 127 Detected Check code name 128 Check all the outdoor units in the corresponding line Error detection condition129 Status 130 131 Check code Detected Main Outdoor 7-segment displayRemote Central control Controller Check code Name 132 Heating 133 Check code Status Error detection Check item position 134Name Condition Sub-code E 135Sub-code C Sub-code D Controller 136 Error detected by TCC-LINK central control deviceError detected by AI-NET central control device Error detection Check item position 137 How to check inverter outputHow to check resistance of compressor winding How to check the outdoor fan motor 138 Diagnosis Procedure for Each Check Code Detected at outdoor side 139E06 E07 140 E19 141E16 E18 / 97/99 142 143 Indoor TCJ sensor errorIndoor TC2 sensor error F03 Indoor TC1 sensor error 144 145 146 H02 / 1d Compressor error LockF31 / 1C H01 / 1F 147 H14 Compressor 2 case thermo operationH06 Low-pressure protective operation Clogging check for SV3E valve 148Low oil level protection Leakage check for SV3C valve 149 150 TK3 temperature detective circuit error L06 151L05 L03 152 L28 L18 / 8A Flow selector unit system error153 L20 L30 / b6 L31 Extended IC errorP01 Indoor fan motor error 154 High-pressure SW P05 / AF Open phase, negative phase155 P04 Actuation 156 P07 / 1C Heat sink overheat errorP10 / 0b Indoor overflow error Indoor fan motor error Gas leak detection P13 Outdoor liquid back detection error 1. PMV1/PMV2 error157 P15 / AE TD condition Sub-code P17 / bb Discharge temp TD2 error158 P15 / AE Gas leak detection Judgment criteria P19 Way valve operation error159 P20 High-pressure protective operation 160 P22 / 1A Outdoor fan Ipdu error P29 Compressor position P26 Tr short-circuit protection errorDetective circuit error 161 162 163 How to read the check display Segment displaySegment Display Function Segment display on the outdoor unit Interface P.C. board 164 SW01 SW02 SW03 Display contents 165 SW03 SW02 Indoor address Segment display a 166 Segment display A, B Sensor CharacteristicsTemperature sensor characteristics Outdoor Unit 168 Pressure sensor characteristicsLead wire color Indoor Unit MPa Kg/cm² Pd sensor characteristicsPressure Sensor Output Check 169 170 Ps sensor characteristics 171 Flow Selector Unit FS Unit 172 May becomeDetection Flow Almost normal Cooled Reference 173Refrigerant Series Indoor Controller Block DiagramWired remote controller Weekly timer Wired remote controller Up to 2 units Weekly timer175 176 Slim DuctTypeSeries 177 Wired remote controller 178SlimDuctType 179 Indoor P.C. Board MCC-1402Type CHK 181Eeprom Disp Flow Selector Unit P.C. Board MCC-1431-01182 DC12V COM Optional Connector Specifications of Indoor P.C. BoardFunction Connector Pin Specifications Remarks 183 RMV 184SV3D SV3E Uart 185 Inverter P.C. board MCC-1502 IPDU1, IPDU2 186 Power supply P.C. board for fan MCC-1439 187 Part type Exchange contents Outline Before Backup OperationCompressor Backup Setup Procedure Backup Setup for Outdoor Unit Set up procedure for the malfunctioning outdoor unit189 190 Operation procedureDisplay example Segment display oil level results Set up the malfunctioning outdoor unit as follows Refrigerant Recovery in the Malfunctioning Outdoor UnitBefore Refrigerant Recovery Operation Refrigerant Recovery Procedure 192 Select an outdoor unit for pressure adjustment as followsSet up all other outdoor units as follows Setup for outdoor unit for adjustment of pressure Refrigerant recovery procedure backup Set up the unit selected as the header unit as follows193 194 Setup for header unit Refrigerant amount to be recovered = 37.5 28.0 = 9.5 kg 195System Combination of outdoor units Refrigerant amount 196 Process after Repair Check code Corresponding unit Trouble by leakage197 Unit issuing Check code to be detected Phenomena 198 Compressor Replacing Procedure Outline Never recover the refrigerant into outdoor unit199 200 Replacing CompressorExchanging a compressor Removal of defective compressor 201 Color check of oil in the defective compressor Adjustment of oil amount in the service compressor Measurement of oil amount in the normal compressor202 Full opening of PMV1, PMV2 Installation of compressorVacuuming Case of single outdoor system Case of multiple outdoor unit systems Procedure to Identify the Cause of Compressor Oil Shortage Check items Position Procedure204 205 NitrogenPressure Disassembling Reassembly206 Remarks Part to be Work procedure Remarks207 Fan motor 208 Disassembling ExampleHeat exchanger Right 209 Reassembly and cautions Inverter assembly Exchange of service P.C. board210 211 SV3C SV3A SV3B Work procedureTemperature Front side of air conditioner sensor posi 212 Temperature Rear side of air conditioner 213Used positions of SUS fixing band Total 5 positions 214 Assembly Pull the accumulator upwards 215 216 Exchange of P.C. Board for Indoor Service Exchange procedure217 Remote controller operation diagram Procedure 1 Readout setup contents from Eeprom 219 Procedure 2 Exchange of P.C. board for service Eeprom layout Procedure 3 Writing-in of setup contents to Eeprom 221 Type Indoor unit capacity Item code Part name Procedure How to Check Inverter OutputHow to Check Outdoor Fan Motor How to check resistance or compressor winding MCC-1439 Front View How to Check Fan Power Supply P.C. Board and Fan IpduHow to check fan power supply P.C. board MCC-1439 How to check fan Ipdu 224 Interface Board Replacement ProcedureReplacement steps Dip Switch Setting contents Comp-IPDU Board Replacement Procedure Manual 225Comp-IPDU No SW801 Bit 226 COMP-IPDU No.1COMP-IPDU No.2 227 Inverter Assembly Configuration Toshiba Carrier Corporation

Toshiba MMU-AP0091H service manual Contents

Models: MMU-AP0091H