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Service Manual

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1. No PARTS NAME TYPE SPECFICATIONS 1 Fan Motor 5 230 34 4 O utput rated 34W 4 pole 230V 1 Phase 50Hz 2 Running Capacitor fan motor 2 105 105 AC 500V 1 0uF 3 Pulse Motor Valve EDM B25YPTF 7B A Capacity 25 4 Transformer 03 1 DC 16 3V 0 5A AC 11 6V 0 15A 5 Pulse Motor EDM MD12TF 3 DC12V 6 Pressure Sensor 150 100NH6 D Power Voltage DC 12V 7 S f t t TA Maximum input ensor for room temperature 38mA at 25 Maximum input 8 Sensor for heat exchanger Tcl 34mA at 25 C ko Maximum input S 9 Sensor for heat exchanger Tc2 26mA at 25 C kg 10 Control PCB CM00CO02 AC 220 240V 11 Power PCB POORCO1 AC 220 240V TOSHIBA Parts Specifications 4 Way Cassette MM U140 Indoor Units No PARTS NAME TYPE SPECFICATIONS 1 Fan Motor MMF 230 36A O utput rated 36W 6 pole 230V 1 Phase 50Hz 2 Running Capacitor fan motor EVM45M305UF AC 450V 3 0uF 3 Pulse Motor Valve EDM B60YPTF 7B A Capacity 60 4 Way Cassette MM U112 No PARTS NAME TYPE SPECFICATIONS 1 Fan Motor MMF 230 36A O utput rated 36W 6 pole 230V 1 Phase 50Hz 2 Running Capacitor fan motor EEP2W255HQA113 450V 2 5gF 3 Pulse Motor Valve EDM B40YPTR 7B A Capacity 40 4 Way Cassette MM U080 No PARTS NAME TYPE SPECFICATIONS 1 Fan Motor MMF 230 28A Output rated
2. 185 100 Gas A Refrigerant pipe connection 80 106 F1 84 8 rss 2 Liquid 28 415 A g i 48 PE zi mpm ix ag Ceiling mE Wiring connection Knockout for side ducts 2150 ESI pipe connection Gland plate 3x20 holes ides i ESP roe 405 400 5 536 di 5 3 s REEE 9 88 8 S peces reds 3 9 mE 8252 ELE gt 9 S 2 Fresh air inlet ML gt 130 336 Condensate pipe 1 BSP 30 620 Hanging bolt pitch threaded 42 940 820 External cassette dimension 880 Ceiling opening 940 Panel dimension Model MM U056 U080 OA 12 7 15 9 B 12 7 9 5 Fresh air inlet duct size 32 0100 130 x r Si
3. 100W 1e jedoud peeds pexi4 z yun ves T PUN Jesse XH08Z0V WW TH08Z0V WW Normal outdoor unit refrigerant recovery Combined Refrigerant P TOSHIBA Refrigeration Cycle Schematic BH Indoor Units Heat exchanger Distributor strainer Check Gas sensor Capillary tube B Pressure sensor Strainer Strainer Refrigerant Pipe Refrigerant A fes A Pipe Gas Ag Model A Capillary mm C mm_ PMV D Code MM B056 6 4 3 8 1 7 1501 3 12 7 27 40 MM B080 9 5 3 8 02 6 2001 4 2 6x400Lx2 15 9 5 8 40 MM B112 9 5 3 8 0 2 2x200Lx6 19 0 3 4 40 MM B140 9 5 3 8 02 2 2001 6 19 0 3 4 60 5 028 6 4 3 8 1 7 2501 2 12 7 1 2 25 MM U056 6 4 3 8 2 0x200Lx3 12 7 1 2 40 MM U080 9 5 3 8 2 6x 150Lx2 200Lx3 4001 1 15 9 5 8 40 MM U112 9 5 3 8 2 6x 200Lx6 300Lx2 500Lx2 19 0 3 4 40 MM U140 9 5 3 8 2 6x 200Lx6 300Lx2 500Lx2 19 0 3 4 60 TOSHIBA Outline of Control Outdoor Unit Operation start Operation end The compressor solenoid valve pulse motor valve PMV outdoor fan etc are controlled by a command from the indoor controller The slave outdoor unit starts stops by a command from the master outdoor unit O peration start O peration stop O perat
4. Multi System Service Manual Air Conditioner Multi Split Type System HFC uoc et TOSHIBA IntroQUcHOn usa uas aoc caca dca CR c as 4 SUMMA Y s aun 7 11 L1IL0l 6 Outline of MMS Modular Multi System 8 Parts SpecificationS RC EE 10 Construction Views Outdoor Units 14 Construction Views Indoor Units 15 Wiring Diagrams 19 Refrigerant Piping Systematic Drawings 25 Combined Refrigerant Piping Systematic Drawings 28 Refrigerant Cycle Schematic 32 Outline of Control ul u s aca a ai GC WR Jn i i e nd 33 Self Diagnostic Display Information 46 Control Circuit Configuration 50 Troubleshooting 55 Backup Operation 101 Forced Function of Oil Level Detection 105 Refrigerant Pipe Installation 106 Trial s i2 Ea bad er RR ACERO 111 Exploded Views and Service Parts 124 Additional Literature and Contacts 134 NEP ee Fe Fe Fre Fe Fe KUY KS TOSHIBA Introduction H Precaut
5. Set the operation mode to FAN by pushing the operation switch Y Is air discharged No from the discharge port gt of indoor unit yes Is there an Yes abnormal sound yNo Normal Check each indoor unit consecutively Check power supply of the indoor unit Check wiring between indoor unit and remote controller Disconnect wires surrounding the control PC board of indoor unit Check connector error Check transformer failure of indoor microprocessor Check remote controller error Check control PC board failure of indoor unit Check for over capacity of the total connected indoor units Check power supply phase order of outdoor units Check incorrect setup of indoor unit HP rating 50 08 Check the remote controller error Check control PC board failure of indoor unit Refer to Check code displayed on remote controller outdoor unit and check positions Check indoor fan fan motor and fan circuit Check peripherals of the fan TOSHIBA Trial Operation Procedure and Summary of Trial Operation 3 Cooling operation check C Start D Set th des Trial operation from This air conditioner is attached bue he ju B outdoor unit is with reactivation delay timer so itch f P
6. Check code Operation cause 1 Outdoor unit power source error 14 2 Wiring error on inverter PC board G Tr short circuit protective system 3 AC fuse disconnection alarm 4 Inverter compressor error Gate Transistor 5 Defective inverter PC board Is the power source voltage No of the outdoor unit normal Yes Is the connection of the No Confirm the power source supply wiring connector on the inverter PC board normal Yes gt Modify connector of wiring No lt Is AC 20A fuse working gt Yes Y gt Replace inverter PC board and fuse Replace inverter PC board and Is inverter compressor No normal Yes compressor Check capacity decrease and Is smoothing capacitor normal No 2200 F400V x 2 Yes C Check inverter PC board appearance Replace inverter PC board Troubles hoot ing TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 17 1 Defective wiring of inverter PC board Current detect circuit system alarm 2 Defective inverter PC board Is wiring connector on 7 2 w lt inverter PC board normal J a M6dily connection of wiring Yes C Check inverter PC board Check code Operation cause 18 hort TEL sensor
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8. x TOSHIBA Exploded Views Serivce Parts Outdoor Units 016 Ref int Model Name No Part No Description MM A0160HX 1 43A00020 PLATE SIDE Right 1 2 43A00021 PLATE SIDE Left 1 3 43A00022 AIR IN CABIN ET Front 1 4 43A00023 AIR IN CABIN ET Back 5 43 00024 CABINET DO WN Front 1 6 43 00025 CABIN ET DO WN Back 1 7 43A00026 SERVICE PANEL 1 8 43A00027 AIR O UT CABIN ET 1 9 43A20004 PROPELLER FAN PY631 1 10 43 41513 COMPRESSOR 6HP Fixed I 11 43A49006 HIGH PRESSURE SWITCH 1 12 43449007 ASM PRESSURE SENSOR Low Blue 1 13 43A49008 ASM PRESSURE SENSOR High Red 1 14 43 46019 ASM SOLENOID COIL 2 WAY SV41 SV42 1 15 43 46020 ASM SOLENOID COIL 2 WAY 5 2 SV3A 1 16 43 446022 5 SOLENOID COIL 2 WAY SV3B 1 17 43A46023 5 SOLENOID COIL 2 WAY SV3C 1 18 43A46024 ASM SOLENOID COIL 4 WAY J502 AC240V 1 19 43A46025 COIL PULSE MOTOR VALVE L12A 03 1 20 43A46026 COIL PULSE MOTOR VALVE A12A15 1 21 43446027 BODY PULSE MOTOR VALVE CEV30RC1 1 22 43446028 BODY PULSE MOTOR VALVE SEV18RC4 1 23 43146499 VALVE BO DY 4 WAY CHV 0401 1 24 43046151 VALVE BO DY 2 WAY NEV 202DXF 3 25 43446034 VALV
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14. Model Capacity code Cooling Capacity Heating Capacity kW kW MM U056 2 5 6 6 4 4 Way Cassette MM U080 3 8 0 9 6 U MM U112 4 tis 12 8 MM U140 5 14 0 15 8 4 2 Way Cassette MM TU028 1 2 8 3 2 TU MM TU042 1 5 4 2 4 8 MM TU056 2 5 6 6 4 Built In Slim Duct Type SB MM SB028 1 2 8 a2 Built In Duct MM B056 2 5 6 6 4 Type B MM B080 3 8 0 9 6 MM B112 4 113 12 8 MM B140 5 14 0 15 8 MM C CR042 1 5 4 2 4 8 Ceiling MM C CRO56 2 5 6 6 4 Type C MM C CRO80 3 8 0 9 6 MM C CR112 4 112 12 8 140 5 14 0 15 8 T MM K KR042 1 5 4 2 4 8 En MM K KR056 2 5 6 6 4 MM K KR080 3 8 0 9 6 MM N028 1 2 8 32 Carcase nn MM N042 1 5 4 2 4 8 Type N MM N056 2 5 6 6 4 MM N080 3 8 0 9 6 2 a MM S SR056 2 5 6 6 4 MM S SR080 3 8 0 9 6 TOSHIBA Parts Specifications Outdoor Units COMPRESSOR 028 MM A0224HT MM A0280HX 0224 MM A0160HX Model Name MG1450CW 21B YG1800CW B1 YG1700CW B1 YG890C B1 Motor Type 3 Phase induction motor Power Supply 380 415V 3 Phase 50Hz Output kQ 7 5 7 9 7 5 15 4 1 Pole P 2 2 INV Fixed 2 2 Fixed Fixed 2 Coil Resistance W 1 18 2 25 INV Fixed 2 25 2 25 Fixed Fixed 2 250 Comp Oil Name NISSEKI RB68AF VG 74 Amount of Oil ml 7500 7500 7500 7500 2000 Inner O ver load Relay Opens 115 5 Closes 93x10 C 4
15. O pen short of TS1 sensor was detected Check connector TS1 sensor CN 504 and characteristics of sensor resistance value When sensor is normal replace interface PC board of the outdoor unit TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Outdoor unit service valve closed 2 Cooling bypass PMV error 3 TD sensor error 4 Insufficient refrigerant blockage in pipe 5 Blockage of PMV assembly on the liquid line A6 Discharge temperature TD1 alarm Are the gas pipe and liquid N No pipe service valves of the outdoor unit fully open Open valves fully Yes Is there a blockage Yes in the PMV assembly on gt Replace both the PMVs the liquid line No PMV B normal lt Is the cooling bypass gt Me gt Cooling bypass PMV B error Yes Are the resistance characteristics No lt of TD1 sensor normal 2 Replace TDL Sensor Yes Y No Is wiring correct Correct wiring Yes Check miswiring of the outdoor unit according to miswiring check function Y Insufficient refrigerant blockage pipe breakage E If there is an abnormal output voltage of Pd sensor Check connector circuit TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Outdoor unit se
16. Pd sensor Ps sensor output voltage normal Pd sensor Ps sensor error Yes Y Is SV2 valve coil normally 9 connected Check connection SV2 CN312 Yes Y No blockage gt Replace SV2 valve in SV3B valve circuit Replace blocked part Is there a blockage Yes in SV2 valve circuit Yes Is there a m gt gt blockage Is there a blockage in the capillary between the gas pipe v Yes gt and the heat exchanger Replace capillary liquid line No blockage C Check interface PC board TOSHIBA Troubles hoot ing BH Diagnostic Procedure for Check Code Check code Operation cause 1 Indoor unit in automatic addressing mode dE 2 Indoor unit PC board setup error Indoor address undefined 3 Defective indoor unit PC board 4 Communication noise interference While this check code is displayed wait for a moment When the address is defined the operation is automatically reset However if the check code does not disappear 20 minutes after the power source was turned on a fault is considered Check the following items Fault check of indoor unit PC board Source check of communication noise interference ncorrect setup of jumper options on indoor unit PC board Check code Operation cause dF 1 Outdoor unit in automatic addressing mode
17. Is the wiring connection N No of communication cables z Check connection of wiring to X Y normal 2 Yes Is 98 displayed only No on the central controller Yes 2 Check communication cable PC board of ilic master connection to slave units of outdoor unit normal groupoperauon Is there duplication Yes Check duplication of network of network addresses addresses Check indoor PC board If defective replace Y Is 97 displayed only Yes a Check No of connected on the central controller central controllers to 1 unit No Y Check the central controller If defective replace TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 99 Indoor remote controller communication alarm 1 Remote controller circuit connection error 2 Duplicated indoor No 1 units 3 Remote controller error 4 Indoor PC board error Check connection of wiring Are internal NNo i wires normal E Is Is there a Yes zl connection error No Y Yes Check indoor PC board If defective replace lt Is group operation performed No lt Is 50 01 set to No 1 on the master unit E Set SWO1 to 1 Avoid duplication of unit setup to No 1 Make u
18. SWO01 02 03 Rotary switch SW04 05 Push switch Push the push switch SW04 on interface PC board of the inverter outdoor unit for 2 seconds or more SW08 Dip switch sssi O peration Operation check Indoor unit to be operated starts operation When discharge air does not change even if cool mode is set on the remote controller a om miswiring connection is considered To be started stopped individually Push the push switch SW05 for 2 seconds or more on interface board of the inverter outdoor unit k Stop a Completion After trial operation return display select switches SWO1 50 02 inverter outdoor unit to 1 SW03 on interface PC board of the inverter outdoor unit to 1 SW01 SW02 SW03 To be operated 16 1 16 1 From address 1 to address 16 individually 16 1 16 2 From address 17 to address 32 individually 16 1 8 3 From address 33 to address 40 individually TOSHIBA Trial Operation Service Support Function Alarm clear function 1 Clearing of check code on remote controller This function releases ALL STO P lock status of the outdoor units whole system connected with the indoor unit and restarts the operation Restarts alarm detection MODE FAN TEMP FAN CHECK ADDRESS UNIT S COOL ett LILI HEAT AVTO Ll LIUC CENTRAL MANUAL y 2 MODE FILTER
19. TOSHIBA Outline of Control Outdoor Units Item Operation explanation and applied data etc Remarks 9 Compressor winding heating control This control is to prevent stagnation of refrigerant in the compressor case by a supply of current to heat the windings while the inverter compressor is off This control is executed by the inverter outdoor unit only If the supply of current is not turned on for a specified time before trial operation when installation work has finished a fault of the compressor may occur If the power source is interrupted for a period of time it is necessary to switch power to the system for a minimum of 24 hours before commencing system operation 1 Control conditions Compressor stops and TD 35 2 Contents of control This control is executed by temperature detected by TK3 sensor as shown in the following figure NOTE Switching may be heard during heat winding operation but it is not an error fault TK3 40 C C zone 34 B zone 25 zone A zone B zone C zone Intermittent Continuous switch on power No switch on power ON 10 minutes switch on power OFF 5 minutes 10 Crank case heater control This control is executed by the fixed speed unit only 1 Control contents This control is switched off when TK3 sensor detected 40 or higher temperature and switched on when TK3 sensor detected 35 C or lower temperature Afte
20. Turn off SWO09 bit 1 on interface 15 SWO9 bit 1 of master outdoor interface PC board off 1 Reset the power source execute automatic address Yes Y No PC board of master outdoor unit It is normal lt Id BF detected Yes C Check interface PC board Restart the operation 1 SWO9 bit 1 on interface PC board of the master outdoor unit is for outdoor address setting OFF Automatic addressing factory set ON Manual addressing Check code Operation cause 93 Indoor TC1 sensor alarm TC1 sensor error If the sensor is normal replace indoor PC board Check connection of TC1 sensor TC1 sensor CN 20 disconnection of circuit and characteristics of sensor resistance value Check code Operation cause 94 Indoor TC2 sensor alarm TC2 sensor error If the sensor is normal replace indoor PC board Check connection of TC2 sensor TC2 sensor CN 05 disconnection of circuit and characteristics of sensor resistance value TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Connection error of communication cable 95 between indoor and outdoor units Communication alarm between indoor and outdoor 2 3 Connection error of connector for indoor communicati
21. sensor normal Are the output voltage No characteristics of Pd sensor Ps Sensor error Yes Insufficient refrigerant blockage TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code bE Low pressure protective operation Operation cause Ps sensor error Service valve closed Indoor fan capacitor error Indoor outdoor PMV blockage Indoor heat exchanger blockage SV2 circuit Incorrect wiring of communication cable between indoor and outdoor units gt Q N P C Does the indoor fan operate Yes Y Are the following items related to indoor No 5 s fan motor normal Repair defective part 1 Connection 2 Capacitor 3 Motor Check indoor PC board If defective replace Is there a blockage on the Yes indoor filter or heat exchanger n Are the gas pipe and liquid No Clean or remove blockage pipe service valves of the outdoor unit fully open O pen valves fully Are the characteristics of No low pressure sensor normal gt Replace low pressure sensor Yes Y No lt Is SV2 bypass circuit normal gt gt Modify SV2 bypass circuit Yes Y No lt Is the wiring correct gt gt Set normal wiring Yes Check miswiring of the outdoor unit according
22. g I B Br mulator D Capillary Solenoid X valve SV3B Strainer pressure Sensor Check valve Compressor Solenoid case oil valve removal valve Capillary Packed Packed Service valve oil valve valve balancing liquid gas side pipe side TOSHIBA Refrigerant Piping Systematic Drawings Fixed Speed Unit 6HP Model MM A0160HX Propeller fan gt Motor Sensor TE1 Capillary Condenser 4 Way valve Solenoid valve Pulse motor valve B SV2 Cooling bypass or High pressure sensor Check joint Pd Solenoid valve Sensor V TK1 s d Strainer Oil Strainer Capillary separator Solenoid valve SV41 Check valve Accumulator High pressure SW Compressor Capillary Solenoid Strainer Low pressure sensor Fixed speed Check valve Compressor Solenoid case oil Xio valve removal valve SV3A VZ Check valve Capillary Packed Packed Service valve oil valve valve balancing liquid gas side pipe side TOSHIBA aunssa1d wo1 seb PONOA 3ueuebujai pinbi seb eui 6 adid iuc Bupuejeq FT BAPA 0 anjen x
23. temp 43 C or more Clear the alarm and start the No leakage operation Replace SV3C valve Check interface PC board 1 SV3C valve leakage check procedure 1 Remove SV3C coil and start a trial operation 2 During operation check the temperature at secondary side of SV3C valve A gt If the temperature is high equivalent to discharge temperature leakage from SV3C valve is considered Replace SV3C valve SV3C Valve 253 1 1 strainer lt Check joint Oil Capillary A Capillary 4 Strainer TK2 tank J Check valve Check valve SV3A valve A oil LK H Oil removal valve separator Wm Strainer Accumulator Check joint SV3B valve Strainer i Balancing pipe valve Strainer TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Is there a blockage me in the PMV assembly on gt the liquid line of No Are the characteristics of Check code Operation cause 1 Leakage of PMV assembly on the liquid line dd 2 Pd sensor Ps sensor error Outdoor refrigerant leakage 3 Blockage in SV2 valve circuit detection 4 Blockage in SV3B valve circuit 5 Blockage in capillary of bypass between gas pipe and heat exchanger line Replace both the PMVs
24. 14 Current detection circuit I Compressor error 1d Compressor breakdown TH sensor circuit 43 Heat sink overheat protective operation dA Y Inverter serial signal short circuit High level refrigerant leak if RBC RD2 PE fitted Four way valve alarm Outdoor heat exchanger sensor TE1 short circuit Discharge temp sensor TD1 short circuit Discharge temp sensor TD2 short circuit Suction temp sensor TS short circuit High pressure sensor Pd short circuit Low pressure sensor Ps short circuit Pressure sensor Ps miswiring Discharge temp TD1 protective operation Discharge temp TD2 protective operation Low Hz time discharge temp TD1 protective operation Suction temp TS protective operation High pressure Pd protective operation Low pressure Ps protective operation Fixed speed 1 high pressure SW short circuit Fixed speed 2 high pressure SW short circuit Fixed speed 1 IOL OCR short circuits Fixed speed 2 IOL OCR short circuits Inverter IO L short circuit Mg SW deposit controlling display Outdoor Unit power source phase order miswiring Extension IC EEPROM short circuit Indoor O utdoor error Indoor O utdoor communication short circuit No of connected indoor units over capacity Connected indoor units over capacity Outdoor unit back up operation prevented Reduction of No of server outdoor units No of server outdoor units over capacity Server out
25. 2 capacity code of outdoor units 53 can be connected to each branch Code is determined according to the capacity code of the indoor units connected If the total capacity code value of indoor units exceeds that of outdoor units apply the NOTE If the length of the gas pipe exceeds 30m from the 1st branching to an indoor unit increase the gas pipe size by 1 size i e MM U140 Gas 022 2 Liquid 29 5 When using a branch header indoor units with a maximum of 6 0 capacity code in total TOSHIBA Operating Conditions The units referred to within this manual conform with the protection requirements of Directives 89 336 EEC Electromagnetic Compatibility and 73 23 EEC Low voltage Operating conditions of the unit are as follows Outdoor temperature 5 43 C 15 21 Room Temperature 18 32 C 15 20 Room humidity 8096 Note 1 Cooling capacity is rated at the following temperature conditions 27 C DB 19 C WB Indoor air inlet temperature Outdoor air inlet temperature 35 C DB Note 2 Heating capacity is rated atthe following temperature conditions Indoor air inlet temperature 20 DB Cooling Heating Cooling Heating Cooling Outdoor air inlet temperature 7 C DB 6 C WB Note 3 For details about the Outdoor unit Indoor units or Remote Controller installation refer to the relevant literature i e Installation Instructions supplied with the units Note 4 Operatives handling re
26. Components Appearance Inverter unit Fixed speed unit Corresponding HP 8HP 10HP 6HP 8HP 10HP Model name MM A0224HT MM A0280HT MM A0160HX MM A0224HX MM A0280HX Cooling capacity kW 22 4 28 0 16 0 22 4 28 0 Heating capacity kW 25 0 31 5 18 0 25 0 31 5 2 Outdoor Units Combination of Outdoor Units Corresponding HP 10HP 14HP 16HP 18HP 20HP 22HP 24HP 26HP 28HP 30HP 32HP 34HP 36HP 38HP 40 42HP 44HP 46HP Combined Model MM A HT 0224 0280 0384 0440 0504 0560 0608 0672 0728 0784 0840 0896 0952 1008 1064 1120 1176 1232 1288 Cooling capacity kW 22 4 28 0 38 4 44 8 50 4 56 0 60 8 67 2 72 8 78 4 84 0 89 6 95 2 100 8 106 4 112 0 117 6 123 2 128 8 Inverter unit 8HP 10 8HP 8HP 10HP 10HP 8HP 8HP 10HP 10HP 10HP 8HP 10 10 10HP 10HP 10 10HP 10HP 6HP 8 8HP 10HP 8HP 8HP 8HP 10HP 10 8HP 8HP 10HP 10 10HP 8HP 10HP 10HP ombine outdoor Fixed 6HP 8HP 8HP 8HP 10 8HP 8HP 8HP 10 10HP 8HP 8HP 10HP speed unit 8HP 8 8HP 10HP 8 amp HP 8 8HP 8HP 8HP No of tabl ind saa 1
27. IHM U Em MEEI E T3A NHO lt fx IHM La qaq I nnm EL l 2264 Xa tox XSL 2 KLXeXe XS XSL 2 20 lt m m Fe 26 B LSS n3 7aNNYD TOSHIBA Refrigerant Piping Systematic Drawings Inverter Unit LOHP 8HP Model MM A0280HT MM A0224HT Propeller fan Fan Motor Condenser 4 Way valve Pulse motor valve B Cooling bypass sensor Check joint Pd Solenoid valve Sensor SV3C TK1 Strainer Strainer Capillary Solenoid valve O SV42 Check valve High pressure Accumulator pressure SW Check Sensor joint Ps TD2 Capillary Inverter Low Fixed speed pressure O m nsor Check valve Compressor senso SV3B Solenoid case oil O valve removal valve SV3A Strainer Capillary Packed Packed Service valve oil valve valve balancing liquid gas side pipe side TOSHIBA Refrigerant Piping Systematic Drawings H Fixed Speed Unit 10HP 8HP Model MM A0280HX MM A0224HX Propeller fan Fan Motor PMV A E Condenser Capillary Sensor TS 4 Way valve r3e Pulse motor valve B m Cooling bypass PM VB ea Check joint Pd a Capillary Solenoid valve Sensor SV3C TK1 Strainer
28. z OTS 23 x jus 00SNO IHM UO X einssaig Boan Aejai zt 26r JossaJduuoo 10 et N 20940 ZOSNO BOSNO PONO SOSNO Z0ENO Loeno 00 g ainssald IHM ma IHM IHM 2 ESTE mm E D HE BE H Joss adwo p z T WO X 2 PE Hed JoquuAsS u S i TOSHIBA iagrams e iring W Outdoor Units Fixed Speed Unit 6HP MM A0160HX 1 IHM ASLYIOBE NE HOS jddng amog Jafajn u 1018108 O3 1 21 fii AM ma 1 TT 1 05 W AH IN Ss AH5 e 7 V Py fs 5 ET OPNO 20 00 LOPNO 0 90 0 kk MM nog ng WS IHM ma 60MS sua v d uq 9uq 01 B Al E EI one Olola 60 6961 20 me LOMS ZOMS 0 5 sons 1804 24 101 u09 eoeJ18 u 80 5 40 5 90 5 Hs o gt I 9LSNO mg By un ma LLL mg EL Ozosa ma 080 ey IHM 108095 EEN IBN F E ma L dd HM er 105495 10949 709 0 Z0SNO YOSNO SOSNO 109 0 20 00ENO 91155914 IHM ma ma aay IHM Gau CET
29. 1 Remove lower painted panel and electrical cover on the inverter outdoor unit and check the 7 segment display A check code is displayed at the right side of the 7 segment display U1 nn nn Check code Switch setup when checking the check code SW01 1 SW02 1 SW03 1 2 Confirm the check code and implement check operation according to the Troubleshooting guide for each check code 3 If U1 d2 is displayed on the 7 segment display an error occurs on the fixed speed outdoor unit Push the push switch SW04 of the inverter outdoor unit for several seconds Only the outdoor fan in which error occurred operates O pen the panel of the unit of which the fan operated and check the code on the 7 segment display 4 Implement check operation according to the Troubleshooting guide for each check code TOSHIBA Troubles hoot ing Description of Functional Parts Functional part Functional outline Solenoid 1 SV3A 1 Accumulates oil from the compressor to the oil tank when the valve is shut valve CN312 2 Supplies the gathered oil to the balancing pipe during ON time when pressure is applied to inside of the oil tank 3 Supplies oil directly to the balancing pipe when the valve is open and pressure is applied 4 Reduces pressure after pressure has been applied to inside of the oil tank 2 SV3B 1 Returns oil supplied in the balancing pipe to the compressor CN 313 3 SV3C 1 Applies pressure to
30. 43A20003 43A22005 FAN MULTI BLADE S FAN CASE 43A22006 S FAN CASE 43A21020 FAN MOTOR 43A44063 REFRIG ERATION ASSEMBLY 43A50023 SEN SOR ROOM TEM PERATURE 43A50019 43A50020 SEN SOR HEAT EXCHANGER Gas SEN SOR HEAT EXCHANGER Liquid 43155100 MF CAPACITOR 43A58004 TRAN SFO RMER MMS 43A60010 TERMINAL ABC PQ 43A60012 TERMINAL E L N 43A69025 43A69024 PC BOARD CONTROL MMS PC BOARD POWER MMS 43A72011 DRAIN PAN 43A80009 FILTER 43A49009 PRESSURE SEN SOR Service 43A46037 PULSE MOTOR VALVE COIL 43A88013 OWNERS MANUAL 19 TOSHIBA Exploded Views and Service Parts Indoor Units 4 Way Cassette MM U056 MM U080 Part No Description Model Part No Description Model 01 43A70005 DRAIN HOSE ASSEMBLY ALL 15 43450022 SENSOR HEAT EXCHANGER Liquid ALL 02 43A44066 REFRIGERATIO N ASSEMBLY U056 16 43A50023 SENSOR ROOM TEMPERATURE ALL 02 43A44067 REFRIGERATIO N ASSEMBLY U080 17 43A49009 PRESSURE SEN SOR Service ALL 03 43A70006 DRAIN PUMP ALL 18 43A46037 PULSE MOTOR VALVE COIL ALL 04 43451002 FLOAT SWITCH ALL 19 43460012 TERMINAL E L N ALL 05 43A21018 FAN MOTOR ALL 20 43460002 TERMINAL ALL 06 43A11004 RUBBER IN SULATION ALL 21
31. 43A60011 TERMINAL PQ ALL 07 43A20001 CENTRIFUGAL FAN ALL 22 43A55002 MF CAPACITOR U056 08 43A72006 DRAIN PAN ASSEMBLY ALL 22 43155100 MF CAPACITOR U080 09 43A22003 BELLMOUTH ALL 23 43097166 WASHER ALL 10 43A19004 FAN GUARD ALL 24 43A97002 FAN WASHER ALL 11 43 58007 TRANSFORMER MMS ALL 25 43A72008 PLUG ALL 12 43469023 PCB CONTROL CM00C01 ALL 26 43107215 FIX PLATE SENSOR ALL 13 43469024 PCB POWER POORCO1 ALL 27 43488013 OWNERS MANUAL ALL 14 43450021 SENSOR HEAT EXCHANGER Gas ALL TOSHIBA Exploded Views and Service Parts Indoor Units 4 Way Cassette MM U112 MM U140 Part No Description Model Rer Part No Description Model 01 43A70005 DRAIN HO SE ASSEMBLY ALL 15 43A50022 SENSOR HEAT EXCHANGER Liquid ALL 02 43A44064 REFRIGERATION ASSEMBLY U112 16 43450023 SENSOR ROOM TEMPERATURE ALL 02 43A44065 REFRIGERATIO N ASSEMBLY U140 17 43449009 PRESSURE SENSOR Service ALL 03 43A70006 DRAIN PUMP ALL 18 43446037 PULSE MOTOR VALVE COIL ALL 04 43451002 FLOAT SWITCH ALL 19 43460012 TERMINAL BLOCK E L N ALL 05 43A21019 FAN MOTOR ALL 20 43460002 TERMINAL BLOCK ABC ALL 06 43A11005 RUBBER INSULATION ALL 21 43460011 TERMINAL BLOCK PQ ALL 07 43A20002 CENTRIFUGAL FAN ALL 22 43155138 MF CAPACITOR U112 08 43A72007 DRAIN PAN ASSEMBLY
32. Combination of line and header branching is highly flexible This allows installed in limited spaces for the shortest design route possible thereby saving on installation time and cost Line header branching after header branching is only available with Toshiba s Multi Modular System Line Branching d Outdoor Unit Non polarized control wiring between outdoor and indoor units Largest system capacity Toshiba s Multi Modular System can be combined up to 128 8kW Indoor unit PIO dt 86 9 Outdoor unit Branching joint Wiring diagnosis system Advanced bus communication system Example of wiring diagnosis Wiring between indoor and outdoor unit is a simple 2 wire system Indoor Unit Use the switches on the microcomputer Communication address is also automatically configured of the outdoor unit A default test mode operation is available Detects wiring to the indoor unit b4 which should not be in system A b4 is missing in system B Header Branching Outdoor Unit Self diagnostic system Comprehensive troubleshooting code enables quick identification of problems arising Branching Header Indoor Unit A ndoor Uni High lift design Real pipe length of 100m equivalent length 125m and vertical lift of 50m is made poss
33. 0 585 1 035 1 710 2 610 3 780 39 1 170 2 535 4 485 7 410 11 310 16 380 10 0 300 0 650 1 150 1 900 2 900 4 200 40 1 200 2 600 4 600 7 600 11 600 16 800 11 0 330 0 715 1 265 2 090 3 190 4 620 41 1 230 2 665 4 715 7 790 11 890 17 220 12 0 360 0 780 1 380 2 280 3 480 5 040 42 1 260 2 730 4 830 7 980 12 180 17 640 13 0 390 0 845 1 495 2 470 3 770 5 460 43 1 290 2 795 4 945 8 170 12 470 18 060 14 0 420 0 910 1 610 2 660 4 060 5 880 44 1 320 2 860 5 060 8 360 12 760 18 480 15 0 450 0 975 1 725 2 850 4 350 6 300 45 1 350 2 925 5 175 8 550 13 050 18 900 16 0 480 1 040 1 840 3 040 4 640 6 720 46 1 380 2 990 5 290 8 740 13 340 19 320 17 0 510 1 105 1 955 3 230 4 930 7 140 47 1 410 3 055 5 405 8 930 13 630 19 740 18 0 540 1 170 2 070 3 420 5 220 7 560 48 1 440 3 120 5 520 9 120 13 920 20 160 19 0 570 1 235 2 185 3 610 5 510 7 980 49 1 470 3 185 5 635 9 310 14 210 20 580 20 0 600 1 300 2 300 3 800 5 800 8 400 50 1 500 3 250 5 750 9 500 14 500 21 000 21 0 630 1 365 2 415 3 990 6 090 8 820 51 1 530 3 315 5 865 9 690 14 790 21 420 22 0 660 1 430 2 530 4 180 6 380 9 240 52 1 560 3 380 5 980 9 880 15 080 21 840 23 0 690 1 495 2 645 4 370 6 670 9 660 53 1 590 3 445 6 095 10 070 15 370 22 260 2
34. 10 0 X X 0 X X 42 0 X X 0 X 0 11 X 0 X X X 43 X X X 12 X X X 44 X X 13 X X 0 0 X X 45 X X 0 0 X 0 14 X X X 46 X X 15 X X X 47 X X 16 X X 48 X 17 X X X X 0 X 49 X X X X 0 0 18 X X X X 50 X X X 19 X 0 X X 0 X 51 X 0 X X 0 20 X X X 52 X X 21 X X X X 53 X X X 0 22 0 X X X 54 X X 23 X X X 55 X X 24 X X 56 0 X 0 0 25 X X X 0 0 X 57 X X X 0 0 0 26 X X X 58 X X 27 X X X 59 X X 0 0 0 28 X X 60 X O 29 X X 0 0 X 61 X X 30 X X 62 X 31 X X 63 X 32 O X 64 SWOS8 NOTE 1 Selected content side X OFF Numeral side X X X 0 Indoor capacity 0 5 HP X X 0 X Indoor capacity 0 8 HP X X 0 0 Indoor capacity 1 0 HP Y 0 O Indeorcapadty 12 HP DIP switch table for indoor unit HP set up X 0 X 0 Indoor capacity 1 5 HP X 0 0 X Indoor capacity 1 7 HP X 0 0 0 Indoor capacity 2 0 HP X 0 0 0 Indoor capacity 2 5 HP 0 X X 0 Indoor capacity 3 0 HP 0 X X 0 Indoor capacity 3 2 HP 0 X 0 0 Indoor capacity 4 0 HP 0 0 X X Indoor capacity 5 0 HP TOSHIBA Control Circuit Configuration 6 Service PC board selection corresponded table MCC 1361 01 The
35. 10HP FIXED 1 10 43A41512 COMPRESSOR 8HP FIXED 1 11 43 49004 HIGH PRESSURE SWITCH 1 1 11 43 49005 HIGH PRESSURE SWITCH 1 1 12 43 49006 HIGH PRESSURE SWITCH 1 1 1 1 13 43 49007 ASM PRESSURE SEN SOR Low Blue 1 1 1 14 43 49008 ASM PRESSURE SEN SOR High Red 1 1 1 1 15 43A46019 ASM SOLENOID COIL 2 WAY SV41 SV42 T 1 16 43A46020 ASM SOLENOID COIL 2 WAY SV2 4 SV3A 1 1 1 1 17 43A46021 ASM SOLENOID COIL 2 WAY SV42 1 1 18 43A46022 ASM SOLENOID COIL 2 WAY SV3B 1 all 4 1 19 43 46023 ASM SOLENOID COIL 2 WAY SV3C 1 1 1 1 20 43 46024 ASM SOLENOID COIL 4 WAY J502 AC240V 1 1 1 1 21 43A46025 COIL ULSE MOTOR VALVE L12A 03 2 2 2 2 22 43 46026 COIL PULSE MOTOR VALVE A12A15 1 1 1 1 23 43A46027 BODY PULSE MOTOR VALVE CEV30RC1 2 2 2 2 24 43A46028 BODY PULSE MOTOR VALVE SEV18RC4 1 1 1 1 25 43A46007 VALVE BODY AWAY CHV 0712 1 1 1 1 26 43046151 VALVE BO DY 2WAY NEV 202DXF 3 3 4 4 21 43 46034 VALVE BO DY 2WAY VPV 360D 2 Z 2 2 28 43A48007 OIL SEPERATOR 1 1 al 1 29 43A48005 ACCUMULATOR 1 1 1 1 30 43 48006 LIQUID TANK 1 1 1 1 31 43A60013 FUSIBLE PLUG 1 1 1 1 32 43A43018 CONDENSER ASSEMBLY RIGHT 1 1 1 1 33 43A43019 CONDENSER ASSEMBLY LEFT 1 1 1 1 34 43445003 DRYER XH10 R407C 2 2 2 2 35 43146351 SERVICE VALVE Gas 1 1 1 1 36 43 46029 PACKED VALVE Liquid 1 1 1 1 37 43A46030 PACKED VALVE Oil 1 1 1 1 38 43A46031 CHECK VALVE BCV 302
36. 20 15 Requested HP 5 10 15 20 25 30 HP Operation capacity 4 Oil level valve detection control 1 The volume of oil in the oil tank is judged by the detection temperature of TK1 and TK2 sensors 2 The present temperature detected by TK1 TK2 and TK3 sensors are stored in memory as the initial value and then the solenoid valve SV3C is activated Sampling of TK1 TK2 and TK3 sensor temperature occurs and the temperature change between TK1 and TK2 is judged If the judgement is such that a reduction in oil is present the oil equalizing control function starts TOSHIBA Outline of Control Outdoor Unit Item Operation explanation and applied data etc Remarks 5 Oil equalizing control This control is to prevent oil reduction in the compressor between the outdoor units This control is classified into two functions one is an individual control in normal operation which is performed by the master outdoor unit and the other is a system control which is executed when shortage has been detected in the oil level detection control This control is executed by open close operation of solenoid valves SV3A SV3B and SV3C and has the following two patterns 1 Oil equalizing control 1 This is executed when the master outdoor unit has continuously operated for 30 minutes or more and the result of the oil level detection judgment has been adequate If only one outdoor unit is
37. 4 Outdoor cyde data display Displayed on each outdoor unit Outdoor cycle data display is used when the fixed speed unit information is displayed on the 7 segment section of the inverter unit SW03 502 SWO1 Displayed content 1to4 1 3 Check code A U2 to U5 Outdoor unit number Setup with 5 03 B Normal time No error a check code is displayed in abnormality 2 Type of fixed speed A U2 to 05 Outdoor unit number Setup with SW03 compressor B Fixed speed 2 in 1 compressor b Fixed speed 2 compressor C Fixed speed single compressor 3 Fixed speed unit A U2 to 05 Outdoor unit number Setup with SW03 capacity B 6 8 10 6 8 10HP 4 Fixed speed A 6 8 10 6 8 10HP B 10 No 1 compressor start No 2 compressor stop status comman 01 No 1 compressor stop No 2 compressor start status 5 A U2 to U5 Outdoor unit number Setup with SW03 For inverter the frequency code is displayed 00 to FF B 6 A U2 to U5 Outdoor unit number Setup with SW03 B 7 Oil level judgment A U2 to U5 Outdoor unit number Setup with SW03 status B 1 Normal time L Shortage NOTE The outdoor unit number is set by selecting SW03 SW03 Outdoor unit number 7 segment display A 1 Outdoor No 2 unit Fixed speed 1 U2 2 Outdoor No 3 unit Fi
38. Clear Both FULL OPEN FULL CLOSE return to normal open pulse when 2 minutes has passed Be sure to remove the short circuit after check NOTE Switch off bit 1 side of DIP SWO8 TOSHIBA Exploded Views and Service Parts Outdoor Units CLLLLL LYS NN 645 5 1d PDAS UAT AAA UU MM A0280HT MM A0280HX MM A0224HT MM A0224HX SS INN pp Q 15 16 17 18 19 TOSHIBA Exploded Views and Service Parts Outdoor Units MM A0280HT MM A0224HT MM A0280HX MM A0224HX Ref No Part No Description MODEL MM A 0280HT 0224HT 0280HX 0224HX 1 43 00020 PLATE SIDE Right 1 1 1 1 2 43400021 PLATE SIDE Left 1 1 1 1 3 43 00022 AIR IN CABIN ET Front 1 1 1 1 4 43 00023 AIR IN CABIN ET Back 1 1 1 1 5 43A00024 CABINET DOWN Front 1 1 1 1 6 43A00025 CABINET DOWN Back 1 1 1 1 7 43 00026 SERVICE PANEL 1 1 1 1 8 43A00027 AIR OUT CABIN ET 1 1 1 1 9 43 20004 PROPELLER FAN PY631 1 1 1 1 10 43A41510 COMPRESSOR 10HP 8HP INV 1 1 10 43A41511 COMPRESSOR
39. the drain pump When CHECK code control operates Ob occurs the outdoor units stop and STANDBY is displayed on the remote controllers of all the indoor units TOSHIBA Outline of Control Indoor Units Item Operation explanation and applied data etc Remarks 11 Auto louver 1 When the louver signal has been received from the control remote controller or the central controller the auto turn louver operates if the indoor fan is operating 12 Frequency fix 1 When holding the START STO P SW on the remote Command frequency operation Trial operation controller continuously for 5 seconds the mode changes to Trial operation mode Then set the indoor fan to HIGH mode to operate the frequency fix COOL SD COOL E HEAT SF HEAT H 13 Filter sign display 1 The operation time of the indoor fan is measured and stored in memory and it is displayed on the remote controller LCD after the specified time 120H 2500H Selection of 120H 2500H is factory set 2 When the filter reset signal has been received from the remote controller the measured time is reset and LCD display is cleared FILTER is displayed Selection of J11 presence 14 STANDBY display 1 When phase order of the power source wiring is incorrect Over capacity combination of indoor units There is an indoor unit with the indoor overflow alarm Ob 2 The above indoor unit
40. 1 also available the operation restarts plea 2 minutes 30 seconds after it and then check L is displayed stopped Check each indoor unit consecutively Y Cis there cool air discharge Check operation status of the compressor Yes Y No Is air circulation good gt Check louver direction Yes y O perate all the units concurrently Is temp difference of No NOTE 1 I suction discharge air good p Is the supply voltage No 2 Check the supply power voltage good 220V 240V Check power cable dia Is the operation curren NOTE 2 Within 15 of the catalogu amp No Check overload of indoor outdoor current value Max Hz operation P temperature Check pipe length and refrigerant amount Check the compressor operation Hz and outdoor fan operation status lt 2 Is there an abnormal sound of the NOTE 3 Is the operation pressure N No compressor normal Normal TOSHIBA Trial Operation Procedure and Summary of Trial Operation NOTE1 Criteria for indoor air inlet outlet temperature difference After operation for a minimum of 30 minutes in COOL mode if temp difference between the air inlet and air outlet of the indoor unit is 8 C or more operation is normal In Max Hz operation The difference in temperature between the air inlet and air outlet decreases when the total number of indoor units
41. 1361 01 TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 11 Indoor fan motor alarm 2 Capacitor error 4 Defective indoo 1 Fan motor circuit connection error 3 Fan motor error r PC board Does indoor fan operate No for a short period after resetting and resuming Yes Is there a connection Yes error of CN 18 connector No Is there a connection error of CN07 connector ig gt Modify connection and wiring Yes fy 9 Is approx DC12V to No 13V output to CN 18 lt Is capacitor normal connector 1 3 pins Yes lg Replace capacitor Confirm there is no mechanical N Yes lock on the fan motor No Is revolution pulse input from hole IC to CN 18 connector 2 3 pins No during fan operation gt Pesan Measurement by tester Approx DC2 to 2 5V Yes Y Y S Replace MCC 1355 01 PC board Check code Operation cause 12 1 Irregularity of power source Other Indoor alam 2 Noise of peripheral equipment 3 Defective indoor PC board Check power source voltage Is there an irregularity of power source Indoor PC board check Defective Replacement Yes modify lines remove noise etc TOSHIBA Diagnostic Procedure for Check Code
42. 28W 6 pole 230V 1 Phase 50Hz 2 Running Capacitor fan motor EEP2W205HQA107 450V 2 0uF 3 Pulse Motor Valve EDM B40YPTR 7B A Capacity 40 4 Way Cassette MM U056 No PARTS NAME TYPE SPECFICATIONS 1 Fan Motor MMF 230 28A Output rated 28W 6 pole 230V 1 Phase 50Hz 2 Running Capacitor fan motor EEP2H105HQA105 500V 1 0uF 3 Pulse Motor Valve EDM B40YPTR 7B A Capacity 40 4 Way Cassette MM U140 MM U112 MM U080 MM U056 No PARTS NAME TYPE SPECFICATIONS 4 Transformer TT 03 1 DC 16 3V 0 5A AC 11 6V 0 15A 5 Pulse Motor EDM MD12TF 3 DC12V 6 Pressure Sensor 150 100NH6 D Power Voltage DC 12V S f i Maximum input 25 50 ensor for room temperature 38mA at 25 ko 10 345 Maximum input 12 O 25 50 8 Sensor for heat exchanger Tcl 34mA at 25 62 3132 8 10 3 6 Maximum input 11 10 1 25 50 9 Sensor for heat exchanger Tc2 26mA at 25 ko 134 6 10 34 10 Control PCB 00 02 220 240 11 POORCO1 AC 220 240V TOSHIBA Construction Views Outdoor Units 028 MM A0280HX MM A0224HT MM A0224HX 0160 Grounding part 4 15 x 20 Slot of bottom plate Base lt s E a s On Qr W including fixed leg 1 700 Base QE gt Fi
43. AC220V 240V power is on to SV3C valve A B 5 After operation for several minutes check the Capillary temperature at the secondary side of SV3C A gt When temperature is high equivalent to discharge temperature at B valve is not blocked il Kee gt If blocked part is found replace SV3A valve valve the part Taa 6 During operation check whether leakage occurs in the check valve two positions Y Balancing pipe valve of pipe connecting the oil tank and compressor case Check temperature either side of C gt If leakage is found replace the part SV3C Valve TK1 sensor strainer D Check joint Capillary ANN Strainer Oil separator Compressor Gm Strainer TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Power supply failure 2 Outdoor fan error 3 Heat sink installation failure 4 Blockage of heat sink cooling duct 5 Defective inverter PC board dA Abnormal overheat of heat sink power supply voltage normal Ng Check power supply Yes Is the wiring connector No Check the circuit wiring for connection normal on the gt example wiring to the inverter inverter PC board compressor or connector connection Yes No lt Is outdoor fan normal gt gt Check and f
44. ALL 22 43155120 MF CAPACITOR U140 09 43A22004 BELLMOUTH ALL 23 43097166 WASHER ALL 10 43A19005 FAN GUARD ALL 24 43A97002 FAN WASHER ALL 11 43458007 TRANSFORMER MMS ALL 25 43A72008 PLUG ALL 12 43469023 PC BOARD CONTROL MMS ALL 26 43107215 FIX PLATE SENSOR ALL 13 43469024 PC BOARD POWER MMS ALL 27 43A88013 OWNERS MANUAL ALL 14 43450021 SENSOR HEAT EXCHANGER Gas ALL 19 TOSHIBA Additional Literature and Contacts 20 EJ TOSHIBA Additional Literature and Contacts 20 EJ TOSHIBA AIR CONDITIONING www toshiba aircon co uk MADE IN UK A90 0130 Revised April 2001
45. CHECK i CHECK button e b ON OFF Remote controller RBC SR2 PE ADJUST O CHECK FILTER rcc Main remote controller RBC SR1 PE Push CHECK button of the remote controller for 3 seconds or more If pushing the button for 10 seconds and more the check code is also deared For that remote controller only 2 Clearing the interface PC board of the inverter outdoor unit It is possible to clear a detected alarm on the PC board of the inverter outdoor unit without resetting the power source and enables the start of operation However the check code stored on the remote controller is not removed and should be removed accordingly using the remote controller Clearing setting in remote controller by the above item 1 or reset hole Set the switches on interface PC board of the inverter outdoor unit SW01to 2 SW02 to 16 and SW03 to 1 Push the push switch SW04 on interface PC board of the inverter outdoor unit for 5 seconds or more Display on 7 segment LED B of interface PC board of the inverter outdoor unit changes to CL for 5 seconds SWO01 02 03 Rotary switch SW04 05 Push switch SW08 Dip switch Also alarms in the indoor and lock alarm are released However the check code remains in the remote controller After this alarms are detected as usual
46. Ou tdo r address undefined 2 Defective indoor unit interface PC board 3 Communication noise interference While this check code is displayed wait for a moment When the address is defined the operation is automatically reset However if the check code does not disappear 20 minutes after the power source was turned on a fault is considered Check the following items e Fault check of outdoor unit interface PC board Source check of communication noise interference between outdoor units TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Fixed speed high pressure SW system alarm 1 FO Fixed speed high pressure SW system alarm 2 Check code Operation cause Fixed speed compressor high pressure SW error Fixed speed compressor IO L operation E1 Service valve closed Outdoor fan capacitor error Indoor O utdoor PMV blockage Outdoor heat exchanger blockage SV2 circuit blockage Miswiring of communication between indoor and outdoor units 9 Pd sensor error 10 Refrigerant over charge EE A E1 High pressure SW system error compressor 1 side F0 High pressure SW system error compressor 2 side Does the fixed speed No high pressure SW operate j Yes Are the fixed speed T pressure SW parts T Yes Is fixed speed No IO L circuit normal lt Yes Check parts If defective replace See
47. T 2 A 30 340 Condensate pipe 1350 130 620 Hanging bolt pitch TOM He Pee 820 External cassette dimension 1 BSP threaded connection 880 Ceiling opening E 940 Panel dimension Fresh air inlet duct size Sid iet ducks m ES 0100 ide outlet duct size 6 06 E 459 TES J 1 0180 E 1 E 6 E tA E e _ a N H a gt p 45 id 130 30 6 TOSHIBA iagrams e iring W Outdoor Units 8HP Inverter Unit 10H A0224HT MM AO0280HT MM 0 L OOIN Joyoedeo on oioe 3 IddnS 10 9961 00 1 eld 029 10 2 1 eld 2081804 Oo bl ynoke7 sueg pequud e sayeoipul gt Ssiequunu euu ULIM si quinu pue s gt oolq seye ipur pue z ays un uo BUI peusep T ASLYIOBE NE HOS jddng jemog jeyenul 20 OOPNO 10 0 ma sua BEB
48. TK2 1 1 1 1 1 11 43A50018 TEMPERATURE SENSOR TK1 1 1 1 1 1 12 43A53001 STARTER TDK 101Y 2 2 13 43469016 INVERTER ASSEMBLY I 1 14 43A69017 PC BOARD ASSEMBLY 1342 01 IPDU 1 1 15 43A69018 PC BOARD ASSEMBLY MCC 1366 01 F 1 1 16 43 69019 BOARD ASSEMBLY MCC 1357 01 SURGE 1 1 1 17 1 434 69020 PC BOARD ASSEMBLY MCC 1343 03 I 1 1 18 43A69021 RC BOARD ASSEMBLY MCC 1343 03 I 1 1 1 19 1 43 60016 BLOCK 3P 60A L1 L2 L3 I 1 1 1 1 20 43A60017 TERMINAL 3P 30A NEUTRAL 1 1 1 1 1 21 43A60018 TERMINAL BLOCK 2P 1A PQ 1 1 1 22 43 60019 TERMINAL 4P 1A PQ 1 1 23 43A55006 REACTOR CH 25 2FK 2 2 24 43 60020 FUSE 6A 3 3 3 3 3 25 43A60021 FUSE 20A 3 3 26 43 52006 MAGNETIC CONTACTOR FCMCa 15 1 1 27 43A60022 FUSE HOLDER 30A 3 3 28 43A60023 FUSE 3 15A 1 1 29 43A60024 FUSE 6 3A 3 3 3 3 3 30 43A63002 BUSHING 10 10 31 43A63003 COLLAR 10 10 32 _ 43A63004 SUPPO RT 4 4 4 4 4 33 43A63005 SUPPO RT ASSEMBLY 1 1 1 34 43 63006 SUPPO RT ASSEMBLY 2 2 2 2 2 35 43A89001 SILICON PACK SILICON GREASE IPDU 1 1 19 Built In Duct MM B056 080 MM B112 MM B140 TOSHIBA Exploded Views and Service Parts Indoor Units Na Part No Description Model n Part No Description Model 01 43120149 MU
49. TOSHIBA Trial Operation Service Support Function 3 Clearing of check code alarm by resetting power source Be sure to reset both power sources of outdoor indoor units Both power OFF Turn on power of the outdoor unit first then indoor units NOTE Even if the lock alarm related to the indoor unit is cleared by resetting power source of the outdoor unit ALL STOP lock status of whole system is not released Remote controller identification function Where many outdoor units are installed it is possible to determine the remote controller connected to a particular outdoor unit by using the PC board of the inverter type outdoor unit Identifying procedure i 18 0 swos E Ow 4 Swo2 Swot DA D77 D714 D715 Set the display select switches on interface PC board of the inverter outdoor unit SWO1to 2 SWO02 to 4 and mI ISP SWO01 02 03 Rotary switch SW04 05 Push switch SW08 Dip switch SW03 to 1 Push the push switch SW04 on interface PC board of the inverter outdoor unit for 2 seconds or more Operation NO N PRIO RITY display on the connected remote controller flashes Display on the 7 segment LED B on the interface gt Check of connected remote controller PC board of the inverter outdoor unit indicates 11 Push
50. X s peeds pexi4 YUN 5 poxpeg 2 p ped epis seb pue pinbi 3e pesop IVU S eoWies i pexped pepe CL XHO0820V INIA i H E 1 V V V ATS A 7 APPUI A A ulens WEAS L J ujens VEAS i edd ANg 5 sss TA anea d bs 25 plouajos peu Se gt 3 anyen Aoss iduuop peuo 2 i TT ue gt ow XD I 9 In 8 5 4osuas 4 8 4OSUBS I iki m 25 5 Ei 3 9 p o H l A Pu J 3 72 iL hen Inverter Unit has Fa Ai Sd ee IOS is E S LE n I Ly 105495 o atqeyaneny s nimi ETE 26 3095 s E Aseyided piou los r h OL j0 e1edas DK 7 i Josues Medeo lt 5 aunssoig Wi Q bd DEAS gosuas oe bg Jeujens 5 DU autof peu SAIE XBIGUSJOS H i DEAS Pd autof 210505 2105095 i 4 S Josuas M
51. action when the defrost heating operation is in progress 1 Control details When PS pressure lt 0 5 kgf cm G the control switches SV41 and SV42 on When PS pressure 21 0 kgf cm G SV41 and 42 are switched off 13 Cold draught 1 During the heating operation the indoor fan is Preheat defrost prevention controlled according to the temperature that is light displayed control detected by TC2 indoor heat exchange sensor C 30 A zone set fan operation from the remote 26 controller 20 B zone low fan speed 16 C zone OFF 14 IDU 1 To prevent the IDU heat exchanger remaining hot exchanger after operation has stopped the indoor fan operates heat removal in low fan speed for approximately 30 seconds TOSHIBA Outline of Control H Outdoor Units Other cautions 1 Cooling operation in low ambient temperature 1 When low pressure is reduced the freeze prevention control by the indoor unit TC sensor may decrease the frequency 2 When low pressure is reduced the cooling capacity control may decrease the frequency 3 When discharge temp sensor value reduces below 60 C the frequency may be increased over the receive command from the indoor unit 4 No of electro waves of the outdoor fan decreases and a low continuous sound may be heard when power is turned on This sound is not abnormal 2 PMV Pulse Motor Valve 1 When the power is turned on a tap sound to initia
52. applied and the temperature 24 hours later The pressure will change by approx 0 01MPa 0 1kg cm G per 1 C NOTES If piping is long an airtight test is performed for each divided block 1 Indoor side vertical pipe 2 Indoor side vertical pipe outdoor side 3 Leaked position check When a reduction in pressure is detected in STEPS 1 to 3 check for leakage at connecting points Check leakage with foaming agent etc and perform re brazing or re tightening of flare if leakage is detected TOSHIBA Refrigerant Pipe Installation Vacuuming 1 After the airtight test discharge nitrogen gas Connect a gauge manifold to the service ports at liquid gas and balance sides and connect a vacuum pump as shown in the following figure Be sure to perform vacuuming at liquid gas and balance sides Low High pressure pressure Connected to Indoor Unit gauge gauge iore M Packed valve fully ain pipe i pip S closed gas side VL Gauge Inverter Outdoor Unit 10 manifold Detailed drawing of packed valve Braz d Gas side oz var service port Service gauge manifo 9 i a E Gas side Fully Liquid side packed valve closed B I J service port 8 Liquid side T Service port dise T unit Packed valve fully Vacuum pump Clos
53. by one in single outdoor unit If checking multiple lines at the same time error may occur Check Procedure Both outdoor indoor unit sides System capacity check Set SW01 on the interface PC board of the inverter outdoor unit to 1 SWO2 to 2 SW03 to 3 zR 0 system capacity is displayed on the 7 segment LED A Check that this display is consistent with the expected system capacity Check No of outdoor units 5 01 02 03 Rotary switch Set SWO1 on the interface PC board of the inverter SW04 05 Push switch outdoor unit to 1 SWO2 to SWO3 to 3 The No SWO8 Dip switch of outdoor units including inverter unit connected to the system is displayed on the 7 segment LED A Check that this display agrees with the expected No of outdoor units Check No of indoor units Set SW01 on the interface PC board of the inverter outdoor unit to 1 SW02 to 4 and SW03 to 3 The No of indoor units connected to the system is displayed on the 7 segment LED A Check that this display is consistent with the expected No of the indoor units cog SW03 SW02 swo 716 0717 0714 DAS TSagneriLED Set the switch on the interface PC board of the inverter outdoor unit to the following value SWO01 to 2 50 02 to 1 SW03 to 1 Cooling operation Operation
54. connected exceeds 100 of the system capacity or when the pipe length exceeds specification NOTE2 Criteria of operation current value In cooling operation when the current is within 15 of the specified current value the system is operating normally COOL Max Hz operation The current value differs as described below according to the operation conditions Greater than the specified current 1 Temp in indoor outdoor is high 2 Radiation of outdoor unit is bad Less than the specified current 1 Temp in indoor outdoor is low 2 Gas leakage Insufficient refrigerant amount NOTE3 Criteria of operation pressure COOL High pressure 16 to 22kgf cm G Indoor 18 to 32 C HEAT Outdoor 25 to 35 Low pressure 3 5 to 5 5kgf cm G NOTE Measurement taken 15 minutes after operation start Dry bulb temp C TOSHIBA Trial Operation Automatic Address Automatic address Between outdoor unit and indoor unit When turning the power on for the first time after the air conditioner has been installed automatic address starts Usually the automatic address takes time approx 3 to 5 minutes after the power is on However in some cases it may take Max 20 minutes Cautions during automatic addressing 1 The air conditioner cannot be operated If pushing the operation button during automatic addressing the following will occur 1 The operation lamp of the remote controller lights 2
55. emergency operation by a fixed speed unit only Work procedure 1 First turn off the source power of all the outdoor units which are connected to the system 2 The following works are performed to the failed inverter unit 1 Close service valve of gas pipe fully Fully close by turning clockwise 2 If refrigerant leakage occurs on PMVB close the service valve of the liquid pipe fully Fully close by turning clockwise 3 Check service valve of the balandng pipe is opened fully Fully open by turning counterclockwise 4 Remove Short circuit connector connected to CN 604 on the interface PC board The removed Short circuit connector is used for the fixed speed unit Described in item 4 below 5 In case of fault of compressor fault of electric part system a Works to the failed inverter unit is complete b Then keep the source power OFF c When central management remote controller is connected to the inverter unit the central management remote controller cannot be used 6 In case of fault of other cycle part system a Set DIP SWO6 Bit 1 2 3 4 on the interface PC board to ON LED display changes to un b Failed inverter work is complete Then turn on the source power to protect the compressor Turn on winding heater d The central management remote controller can be used as normal 3 Select a master outdoor unit among the fixed speed units according to the following reference 1 When only one fixed spe
56. gauge manifold then open the source valve VH on the cylinder purge the air in the hose and then tighten the hose 2 As shown in the diagram below turn the refrigerant cylinder upside down open the valve VH on the gauge manifold and then charge the liquid side pipe with refrigerant in the liquid state Note that with some types of refrigerant cylinders the liquid refrigerant will be output through siphoning action with the cylinder in the normal upright position If the proper charging amount cannot be reached close the valve VH turn the refrigerant cylinder upright open the liquid side and balance packed valves completely and open the gas side packed valve only half way Begin the cooling operation open valve Vi and then charge the gas side pipe with refrigerant in the gaseous state 3 While watching the scales display quickly close the valve VL completely when the system has been charged with the proper amount of additional refrigerant Then close the source valve Va on the cylinder and open the gas side packed valve completely 4 Record the amount of additional refrigerant that was added to the system on the nameplate inside the front panel lower of the outdoor unit Detailed drawing of packed valve Service port To pad at gas side iquid pi adi Packed valve UE Service port at gas side Gauge manifold at liquid side Packed valve gt V at liquid side ms Serv
57. installed U1 to U2 Outdoor unit number Compressor B A Fixed speed 2 in 1 b Fixed speed 2 compressor Fixed speed single d Inverter 2 in 1 3 O peration mode B C Cooling operation H Heating operation 4 O utdoor unit capacity 6 8 10 6 8 10HP B HP 5 Compressor operation A 1 No 1 compressor stop status 1 1 During operation command For inverter the frequency code is displayed 00 to FF 2 No 2 compressor stop status 2 1 During operation lt SW04 gt Push function Inverter frequency data is displayed in decimal notation lt SW05 gt Push function Release of frequency data display in decimal notation 6 Outdoor fan operation A FP pattem B 0 to 16 0 wave stop to 16 waves All waves 7 Compressor backup A C1 Under No 1 compressor backup setup B C2 Under No 2 compressor backup setup 8 A B ss 9 Control valve output A B SV2 OFF Hz c9 25 0 SV2 ON H 2 1 10 SV3A ON SV3B OFF SV3C OFF 1 0 0 SV3A OFF SV3B ON SV3C OFF 3 0 dr 110 SV3A OFF SV3B OFF SV3C ON 3 0 0 1 11 SV41 ON SV42 OFF 4 0 1 0 SV41 OFF SV42 ON 4 0 12 13 14 PMV A1 PMV A2 opening 00 to 500 0 to 1000 pulse 0 0 P 15 PMVB opening 00 to 500 0 to 500 pulse 0 0 P 16 Oil level judgment status A OL B Initial display FF Oil judgment start status A0 Adequate A1 Shortage A2 to A4 D
58. present this control is not implemented 2 Oil equalizing control 2 This is executed to supply oil collected in the oil tank of each outdoor unit to the outdoor unit of which the oil level has been reduced When the oil level judgment result of the master outdoor unit has been insufficient while the compressor of master outdoor unit was ON or when one of the slave outdoor units required oil equalizing this control is implemented When only one outdoor unit is present this control is not implemented Controls to divert oil to the inverter unit in operation Normal oil equalizing operation 6 Refrigerant Oil recovery control 1 Oil recovery control in cooling mode Refrigerant recovery control in heating mode During cooling heating operation this is executed to recover the oil refrigerant in gas crossover pipes or indoor units to the outdoor unit when the compressor operation is reduced this also prevents stagnation of refrigerant in the outdoor heat exchanger while low ambient cooling operation is performed This control is managed by the master outdoor unit 1 Control conditions When compressor ON status continued for 60 minutes When the cooling thermostat OFF timer has finished 2 Contents of control 60 minutes after cooling heating operation has been activated the cooling heating indoor oil refrigerant recovery signal is sent to the indoor controller The cooling thermostat ON 60 minutes ti
59. status that cannot operate enters standby status when the thermostat is turned off and this status continues until STAN DBY status is released STAN DBY is displayed 15 Central controller selection 1 The functions which can be operated on the indoor unit remote controller can also be selected on the central controller Last push priority Can be operated from both the indoor unit remote controller and the central controller and operates with the content as per last selection Central START STO P and the timer operation can be selected by the IDU remote controller Operation forbidden Cannot be operated on the indoor unit remote controller as STOP status No display CENTRAL is displayed CEN TRAL flashes TOSHIBA Self Diagnostic Display Information Outdoor Units System information data display Displayed on the inverter unit only The combination of rotary switches SW01 5 02 SWO3 display the following info cpu MAII SW 05 50 08 lm Em mw swo3 SWo2 SW01 8 5 01 02 03 Rotary switch SW04 05 Push switch SW08 Dip switch SW03 SWO2 SWO1 Displayed content 3 1 1 Use refrigerant Type of refrigerant used is displayed A B n case of R22 model 2
60. the capacity operation frequency is indicated to the outdoor unit control 2 Ts setup temp R C TA Room temp 1 Ambient Ts 1 Compressor OFF NOTE The operation frequency in the above zone differs according to horse power or protective control of the outdoor unit 5 Capacity 1 Frequency correction control correction Frequency of the outdoor unit is corrected so that control the present capacity reaches to the certain specified capacity 2 PMV opening correction control PMV opening is corrected so that the refrigerant status of the indoor unit becomes most appropriate to the demand TOSHIBA Outline of Control Indoor Units 2 When the float SW operates the compressor stops and the drain pump operates 3 When the operation of the float SW continues for 2 minutes a check code is generated Item Operation explanation and applied data etc Remarks 6 Air volume 1 By the command from the remote controller or the During stop control central controller HIGH MED LOW or operation control to AUTO operation is permissible prevent cold draft is 2 While air volume is in AUTO mode the air volume determined Dy TC2 is changed according to the difference between Ta and Ts MESE Ultra low 1 compressor 2 unt 1 5 Ruy as 2 7 Freeze 1 In cooling operation the air conditioner ope
61. the following table and calculate the additional amount of refrigerant The refrigerant amount charged in the outdoor unit is only for the outdoor unit and refrigerant for piping is not included Pipe dia at liquid side Standard refrigerant amount kg m Total length of liquid side pipes m Additional refrigerant amount for each liquid pipe 06 4 0 030 X kg 09 5 0 065 x kg 012 7 0 115 x kg 015 9 0 190 x kg 219 0 0 290 x kg 022 2 0 420 x kg Additional refrigerant amount kg TOSHIBA Trial Operation Procedure and Summary of Trial Operation Trial operation check After Check before trial operation implement a trial operation in the following procedure Turn the power switch on and the crank case heater for 12 hours before a trial operation will be completed Check the trial operation for each indoor unit When multiple indoor units are concurrently operated check for misconnection etc of the refrigerant pipe and control wiring errors can occur Therefore set STO P for indoor units Flowchart of trial operation procedure 1 Source power and initial setup check Does the operation lamp of the remote controller light No Yes Does the LCD display yes on the remote controller show STAN DBY la Is an alarm code displayed on the remote controller i Normal 2 Fan operation check C Start
62. the judgment code of fixed speed IOL OL circuits F1 lt Is service valve fully open 7 Yes O pen service valve fully Does outdoor fan Is fixed speed OCR circuit normal Yes See the judgment code operate lt Yes OL circuits E6 F1 of fixed speed IOL Is the capacitor and fan motor normal Y Repair failed position N T the circuit wiring normal 2 No high pressure sensor normal Check and correct wiring Yes Are the characteristics of gt Yes Replace high pressure sensor Is the outdoor heat exchanger blocked or is a short circuit evident E Eliminate cause Check outdoor interface PC board If defective replace Refrigerant over charge Blockage Pipe breakage Abnormal overload TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause E5 Inverter IOL operation N Inverter IO L operation Service valve closed Cooling bypass PMV error Miswiring of communication between indoor and outdoor units Is the IOL circuit normal 7 No 1 Connector 2 Wiring 3 O utdoor PC board Yes Are the gas pipe and liquid No Repair IOL circuit pipe service valves of th
63. the push switch SW04 50 05 on interface PC board of the inverter outdoor unit for 2 seconds gt Completion or more TOSHIBA Trial Operation Service Support Function Pulse Motor Valve PMV manual FULL OPEN function in the indoor unit With switch operation on interface PC board of the inverter outdoor unit this function allows manual opening of the Pulse Motor Valve PMV in all the indoor units for 2 minutes Usually turning on power of the indoor unit once fully closes the PMV of the indoor unit This function is used when you want to open the PMV fully for operation after power source has been turned off for a second time Procedure Set SWO1 to 2 SWO2 to 3 and SW03 to 1 on the interface PC board of the inverter outdoor unit and push SW04 for 2 seconds or more 7 segment display B changes to FF for 2 minutes Clear After set up PMV returns to normal open pulse automatically when 2 minutes has passed O pened fully for 2 minutes only against FULL OPEN signal from the outdoor unit or software of the indoor unit Pulse Motor Valve PMV forced FULL OPEN FULL CLOSE function in outdoor unit This function allows forced opening closing of the electronic control valve PMV used in the outdoor unit for 2 minutes Full Open Short circuit CN 30 on interface PC board of the inverter outdoor unit Full Close Short circuit CN 31 on interface PC board of the inverter outdoor unit
64. units Setup operation are collectively changed to trial cooling Push SW04 for 2 seconds or more under operation modes condition of SWO1 2 SWO02 5 SW03 1 NOTE Control operation is the same as that of Clear normal trial operation from the remote Returns SW01 SW02 and 5 03 to 1 controller 2 Collective All the connected indoor units are operated Setup operation collectively Push SW04 for 2 seconds or more under condition of SW01 2 SWO2 7 NOTE SW03 1 Operation contents match the setup on the remote controller Clear Returns 5 01 SW02 5 03 to 1 Collective All the connected indoor units are stopped Setup stop collectively Push SW05 for 2 seconds or more under condition of SW01 2 SWO2 7 SW03 1 Clear Returns SWO1 SW02 SW03 to 1 3 Individual The specified indoor unit is operated Setup operation To operate SW01 16 SW02 and SW03 NOTE Set to the indoor address No 1 to 40 Operation contents match the setup on the and push SW04 for 2 seconds or more remote controller Other indoor units stay as they are Clear Returns SWO1 SW02 5 03 to 1 Individual The specified indoor unit is stopped Setup stop Setting SW01 16 SW02 and SWO3 to the NOTE address No 1 to 40 of the indoor unit to Other indoor units are as they are be operated push SW05 for 2 seconds or more Clear Returns SWO1 SW02 SWO03 to 1 NOTE This start stop f
65. 2 n case of RA07C model 40 2 Outdoor system A 8 to 46 8 to 46HP capacity B HP 3 No of connected A 1 to 5 1 to 5 units outdoor units 4 No of connected A 0 to 40 0 to 40 units indoor units B P 5 No of operating 0 to 40 0 to 40 units indoor units BoP 6 A u B 7 Release control A r I Normal operation r1 Under release control operation B t 8 Oil equalizing pattern A OL B P Normal operation P1 to P3 Oil equalizing patterns 1 to 9 A B 10 Refrigerant O il A C Normal operation C1 Under cooling oil recovery control recovery operation L B Normal operation H1 Under heating refrigerant recovery Automatic address A Ad B In normal time Automatic address setup completes 11 Under automatic address setup 12 13 14 15 16 TOSHIBA Self Diagnostic Display Information Outdoor unit information data display Displayed on each outdoor unit Outdoor Units SW03 SW02 SWO1 Displayed content 1 1 1 Check code A U1 to U5 Outdoor unit number 1 Inverter Normal time No error a check code is displayed in abnormality lt SW04 gt Push function Only fan of unit in which an error occurred operates SW04 SW05 gt Push function Only fan of normal unit operates lt SW05 gt Push function Fan operation function is interrupted 2 Type of
66. 3 16 16 18 18 20 22 24 26 28 30 32 34 36 38 40 40 40 40 Min HP Connected 4 5 7 8 9 10 31 32 33 144 15 16 17 186 319 20 21 22 23 Max HP Connected 10 8 13 5 189 21 6 24 3 27 29 7 32 4 35 1 37 8 40 5 43 2 45 9 48 6 513 54 56 7 59 4 621 3 Branching joints headers Model name Usage Appearance RBM Y018 Indoor unit capacity code 1 Total below 6 4 Y shape branching joint RBM Y037 Indoor unit capacity code 1 Total 6 4 or more and below 132 2 RBM Y071 Indoor unit capacity code 1 Total 13 2 or and below 25 2 2 129 Indoor unit capacity code 1 Total 25 2 or more 2 4 branching header 3 RBM H4037 Indoor unit capacity code 1 Total below 13 2 Max 4 RBM H4071 Indoor unit capacity code 1 Total 13 2 or more and below 25 2 branches 8 branching header 3 RBM H8037 Indoor unit capacity code 1 Total below 13 2 Max 8 t RBM H8071 Indoor unit capacity code 1 Total 13 2 or more and below 25 2 branches 1 set of 3 types of T shape joint pipes as described below The required quantity is arranged and they are combined at the site T shape branching joint Connecting pipe Corresponding dia mm Qty For connection of RBM T129 Balancina Di 0952 1 outdoor unit AMEN pipe Piping at liquid side 012 7 to 022 2 1 Piping at gas side 022 2 to 054 1 1 1
67. 4 0 720 1 560 2 760 4 560 6 960 10 080 54 1 620 3 510 6 210 10 260 15 660 22 680 25 0 750 1 625 2 875 4 750 7 250 10 500 55 1 650 3 575 6 325 10 450 15 950 23 100 26 0 780 1 690 2 990 4 940 7 540 10 920 56 1 680 3 640 6 440 10 640 16 240 23 520 27 0 810 1 755 3 105 5 130 7 830 11 340 57 1 710 3 705 6 555 10 830 16 530 23 940 28 0 840 1 820 3 220 5 320 8 120 11 760 58 1 740 3 770 6 670 11 020 16 820 24 360 29 0 870 1 885 3 335 5 510 8 410 12 180 59 1 770 3 835 6 785 11 210 17 110 24 780 30 0 900 1 950 3 450 5 700 8 700 12 600 60 1 800 3 900 6 900 11 400 17 400 25 200 TOSHIBA Trial Operation Procedure and Summary of Trial Operation Outline of procedure For a trial operation follow the procedure below Check the basic items especially installation Check before trial operation work Ensure you write the check results in the gt check lists 1 and 2 imsiaments smorisLsperaenchedk Implement check in sequence according to each flowchart of trial operation procedure In EN Refer to Troubleshooting to clear the error p and then implement the trial operation again Clear the error End Ensure you write the check results of trial operation in the check lists 1 and 2 It will be an imp
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69. 56 a B Built In Duct Type gt C CR Ceiling Type IR Remote m 7 4 TE K KR High Wall Type IR Remote 1 N Carcase Type 056 5 6kW 2HP S SR Low Wall Type IR Remote 080 8 0kW 3HP 112 11 2kW 4HP SB Built In Slim Duct Type 140 14 5HP TU 2 Way Cassette Type E RS SHP U 4 Way Cassette Type 2 Range of combined units No of combined units 1 to 5 units Capacity range Equivalent to 38 4kW type 14HP to 128 8kW 46HP 3 Restriction for combination units 1 The Inverter Unit should have the maximum capacity among all units in that combination 2 The 16 0kW 6HP fixed speed unit is available only with the combination of 38 4kW 14HP and 60 8kW 22HP It cannot be used for any other combination 4 Mode priority This O utdoor Unit is set to operate with the Heating mode taking precidence This precidence can be switched between Heat and Cool mode using the DIP switch 07 on the Outdoor Unit Interface PCB MCC 1343 01 as follows SW 07 SW 07 dili Heat Priority factory set ox Cool Priority 1234 1234 TOSHIBA TOSHIBA Outline of MMS Modular Multi System Outline of MMS Modular Multi System iJ lt NN Compact design e Branching PS design of the Toshiba MMS outdoor unit allows for easy unit Ri maneuvering into any standard lift Its size also allows it to be easily
70. A0280HT MM A0160HX MM A0224HX Charging amount kg 15 5 17 0 5 0 7 0 0280 9 0 When the system is charged with refrigerant at the factory the amount of refrigerant needed for the pipes at the site is not included Calculate the additional amount needed and add that amount to the system Calculation Calculate the additional refrigerant to be added to the system on the basis of the size of the liquid side pipes in use at the site and their length Refrigerant to be added at site length of liquid side pipe x additional amount of refrigerant per meter of liquid side pipe Additional refrigerant R kg L1 x 0 030kg m L Total length m of 6 4mm diameter liquid side pipe L Total length m of 9 5mm diameter liquid side pipe 15 Total length m of 12 7mm diameter liquid side pipe L Total length m of 15 9mm diameter liquid side pipe Ls Total length m of 19 0mm diameter liquid side pipe Lg Total length m of 22 2mm diameter liquid side pipe I Example of calculation MM A0224HT 09 5 10 29 5 10m 09 5 5 Liquid pipe 012 7 30m Liquid pipe 6 4 5 5 10m 9 5 10 10 10 10 4 10 54m 1 7 012 7 30m R 10m x 0 030kg m 54m x 0 065kg m 30m x 0 115kg m 7 26kg TOSHIBA Refrigerant Pipe Installation BH Additional Refrigerant Charging Method 1 Loosely connect the refrigerant cylinder hose to
71. BS aJnssaJd Jojo 82d sn4 ZHOS 09 022 eremi 1 e u CI iagrams ts TOSHIBA Indoor Uni iring W MM U140 MM U112 0080 0056 4 Way Cassette Siequunu ulum sdequunu pue sog seye ipur 3 pue Z aS y uo Buum aul peusep T S4 We trig T I u SOOO O O 7 wee 9102 9194 eee 5 ee Ku Hl JouuloJsueJ D bns lanaji Al898H 6 dosuas eunjeJeyduuar j B u Josues icio dosuas aunyeseduay Je oquo2 1 4 Joypedes Buluuny 7 7 JAosu s aJnssaJd es nd 4030 N paJeac ET m 60 pis EL 0 Joyo LO SSEL OOIN add b J d o0 XD BEND 0 y IHM J RE ZHOS E NA eem IddnS Jemog GORMO ORMO 60000 TERES bru ioco zino LOND Pay zo Vey ry ey PY zono Ket ST WX 00000 00000 t 096734 ur
72. Blue TK3 Connector Green TK2 CN515 1 Used to detect oil level judgment TK1 TK2 TK3 CN507 2 Used to detect dilution status of oil TK3 4 1 505 Used for fan control and to detect heat exchanger defrost requirement Pressure 1 High Connector Red sensor pressure 1 Used to detect high pressure and compressor capacity sensor 2 In cooling operation it is used to detect high pressure and control the fan in cooling CN501 low ambient conditions 2 Low Connector Blue pressure 1 In cooling operation it is used to detect low pressure and control the capacity of the sensor compressor CN500 2 Super heat is controlled by monitoring low pressure during heating operation Balancing pipe 1 Oil supply path for balancing oil of each outdoor unit 2 Low pressure bypass function between outdoor units which recovers the liquid refrigerant stagnated in any stand by outdoor unit 3 Low pressure balancing pipe function to secure pressure difference when check valve of every outdoor unit aligned on a circuit in parallel are inverted TOSHIBA Backup Operation Emergency Operation When One Compressor has Failed Backup Setup of Compressor Outline When one of two compressors installed in the outdoor unit fails take the following action if emergency operation by another normal compressor is possible NOTE 1 In the case of single compressor installed unit 6HP backup o
73. C Indoor PMV blockage units 4 Blockage in pipe Check code Operation cause 1 Indoor unit PMV connection error main unit error 9F 2 TC1 sensor TC2 sensor TA sensor error 3 Miswiring Mispiping between indoor and outdoor Is indoor PMV normal Connector connection Wiring No Ui UN IH Coil Valve Indoor PC board s Are the following sensors No normal TC1 TC2 Repair indoor PMV TA Pressure 5 i Replace defective sensor Is wiring correct No i C Blockage or pipe breakage Modify wiring Check with miswiring check function of the outdoor unit TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause TD1 sensor alarm TD1 sensor open short pen short of TD1 sensor was detected Check connector TD1 sensor CN 502 and characteristics of sensor resistance value When sensor is normal replace interface PC board of the outdoor unit Check code Operation cause A1 TD2 sensor alarm TD2 sensor open short O pen short of TD2 sensor was detected Check connector TD2 sensor CN 503 and characteristics of sensor resistance value When sensor is normal replace interface PC board of the outdoor unit Check code Operation cause A2 TS1 sensor alarm TS1 sensor open short
74. DIAGRAM TOSHIBA Exploded Views and Service Parts Outdoor Unit Electrical Parts Assembly 0280 0224 3 Scie ic q o olei ole MM A0280HX MM A0224HX 34 32 18 29 J L MM A0160HX 13 23 23 TOSHIBA Exploded Views and Service Parts MM AO0280HT MM A0224HT MM A0280HX MM A0224HX 016 Outdoor Unit Electrical Parts Assembly Location Part No Description Model Name MM A No 0280HT 0224HT 0280HX 0224HX 0160HX 1 43A50012 TEMPERATURE SENSOR TS1 1 1 1 1 1 2 43A50013 TEMPERATURE SENSOR TE 1 1 1 1 1 3 43A50014 TEMPERATURE SENSOR TK3 1 1 1 I 1 4 43452005 MAGNETIC CONTACTOR FC 3 1 1 2 2 1 5 43A58006 TRANSFO RMER TT 01 1 1 1 1 1 6 43A55004 MF CAPACITOR 8pF 1 1 1 1 1 7 43A55005 CAPACITOR ELECTROLYTIC 2 2 8 43A50015 TEMPERATURE SENSOR TD1 1 1 1 I 1 9 43 50016 TEMPERATURE SENSOR TD2 1 I 1 1 10 43 50017 TEMPERATURE SENSOR
75. DY Dia 8mm 3 3 3 3 39 43A46032 CHECK VALVE BCV 304DY Dia 15mm 1 1 2 2 40 43A46035 CHECK VALVE MP3 3MPaG Dia 12 7mm 2 2 2 2 41 43A46036 CHECK JOINT 3 3MPa 3 3 3 3 42 43147529 STRAINER Dia 44mm 1 1 1 1 43 43A47019 STRAINER Dia 12 7mm 3 3 3 3 44 43447042 STRAINER Dia 19mm 1 1 1 1 45 43A57001 CRANK CASE HEATER 74W 1 1 46 43A57002 ACCUMULATO R HEATER 29W 1 T 1 1 47 43 51005 ISOLATOR 4 pole 32 Amp 1 1 1 4 48 43A21022 FAN MOTOR STF 200 350A 1 1 1 1 49 43107200 SPRING 3 3 3 3 50 43195198 SPACER 3 3 3 51 43195186 RUBBER CUSHION UNDER 3 3 3 3 52 43195185 RUBBER CUSHION UPPER 3 3 3 3 53 43 95001 RUBBER SUPPORT CUSHION Fan Motor Assembly 4 4 4 4 54 43A19011 FAN GUARD 1 1 1 1 55 43 46033 FLARE NUT Oil Circuit 1 1 1 1 56 43 47043 CAPILLARY ASSEMBLY 1 0x2 0x1000 Oil inlet 1 1 1 1 57 43A47044 CAPILLARY ASSEMBLY 1 2x2 4x1000 Suction 1 1 1 1 58 43A47045 CAPILLARY ASSEMBLY 2 0x3 0x1000 By pass 1 1 1 1 59 43 47046 CAPILLARY ASSEMBLY 1 2x2 4x1000 Main oil 2 2 2 2 60 43A47047 CAPILLARY ASSEMBLY 1 0x2 0x1000 Discharge 2 2 2 2 61 43 47048 CAPILLARY ASSEMBLY 1 0x2 0x1000 By pass 1 1 62 43A16001 WIRING DIAGRAM 1 1 62 43A16002 WIRING DIAGRAM 1 1 TOSHIBA Exploded Views and Serivce Parts Outdoor Units MM A0160HX C
76. E KO ANS UNS COME coms oms eoms 21 Josuag ainssaig Losa tal a na anssaid LE LOSNO au ng 0 vel OOW pieog 24 104007 9289 05 0SNO OSNO SOSNO 009NO 109 0 Z09NO Z0ENO LOEND O0ENO Osora TODEdeO 204101099 90NO ma ZE rosno Lt 9 NO SINO E O viNo 0N9 10 2 1 99N 200 pleog dd 00 10 9961 JIN prog 1814 20151804 1012108 02 asna tT ey D L Z Du Jeyeou Joye nuuroo v HV 4euuojsueuL a anjen Keno 3502 anen Kem omp 98785 YE AS 4oypedes Bujuuny yams eunssaud ubiH z LHES JO QUOD 21U0 Q99 3 ANd uul 6b 10 zt 07
77. E BODY 2 WAY VPV 360D 2 26 43 48007 OIL SEPERATOR 1 27 43A48005 ACCUMULATOR 9 Litres 1 28 43A48006 LIQUID TANK 11 Litres 1 29 43A60013 FUSIBLE PLUG 1 30 1 43443020 CONDENSER ASSEMBLY RIGHT 1 31 43A43021 CONDENSER ASSEMBLY LEFT 1 32 43 45003 DRYER XH10 R407C 2 33 43146351 SERVICE VALVE Gas 1 34 43A46029 PACKED VALVE Liquid 1 35 43446029 PACKED VALVE Oil 1 36 43A46031 CHECK VALVE BCV 302DY Dia 8mm 3 37 43 46032 CHECK VALVE BCV 304DY Dia 15mm 1 38 43A46035 CHECK VALVE MP3 3MPaG Dia 12 7mm 2 39 43A46036 CHECK JOINT 3 3MPa 2 40 43147529 STRAINER Dia 44mm 1 41 43 47019 STRAINER Dia 12 7mm 3 42 43 47042 STRAINER Dia 19mm ii 43 43 57004 CRANK CASE HEATER 40W 44 43 57002 ACCUMULATOR HEATER 29W 1 45 43A51005 ISO LATOR 4 pole 32 Amp 1 46 43 21022 FAN MOTOR STF 200 350A 1 47 43A42002 RUBBER COMPRESSO R MOUNTING 4 48 43 95001 RUBBER SUPPORT CUSHION Fan Motor Assembly 4 49 43A19011 FAN GUARD 1 50 43A46033 FLARE NUT Oil circuit 1 51 43A47043 CAPILLARY ASSEMBLY 1 0x2 0x1000 Oil inlet 1 52 43A47044 CAPILLARY ASSEMBLY 1 2x2 4x1000 Suction 1 53 43A47045 CAPILLARY ASSEMBLY 2 0x3 0x1000 By pass 1 54 43A47046 CAPILLARY ASSEMBLY 1 2x2 4x1000 Main oil 2 55 43A47047 CAPILLARY ASSEMBLY 1 0x2 0x1000 Discharge 2 56 43 47048 CAPILLARY ASSEMBLY 1 0x2 0x1000 By pass 1 1 ul 43 16003 WIRING
78. F the indoor units connected to an identical system collectively using the switch on the interface PC board of the inverter outdoor unit Operation procedure D Power ON If an alarm has been already displayed as SWO1 1 SW02 1 SWO3 1 return the status to normal according to Troubleshooting and then execute a trial operation Set the operation mode of the remote controller If setup is not executed operation is performed under the present mode FAN COOL q cog SW03 SW02 Swot m 0716 0717 074 0715 75 18 Set SWO1 to 2 SW02 to 7 and SWO3 to 1 on the interface board of the inverter outdoor unit 5 01 02 03 Rotary switch SW04 05 Push switch SW08 Dip switch Push the push switch SW04 for 2 seconds or more on the interface PC board of the inverter outdoor unit gt Operation qa O peration Check Indoor unit which is the objective operates When the discharge temp does not change even if COOL is set on the remote controller miswiring is considered Push the push switch SW05 for 2 seconds or more on the interface PC board of the inverter outdoor unit Stop q After trial operation return the display select switches SW01 SW02 and SWO3 on interface PC board of the inverter outdoor
79. Indoor unit fan starts or stops according to the operation mode 3 The outdoor unit is in stop status Therefore cool air does not discharge from indoor unit After automatic address is over the above condition is released and normal operation starts automatically 2 Miswiring check causes misjudgment of automatic addressing If miswiring is found during automatic addressing the result is incorrect addressing Therefore check miswiring 20 minutes or more after power was turned on 3 When control address of the indoor unit has been fixed the automatic address is not activated However the automatic address is activated again in the following cases 1 When replacing PC board of the indoor unit and power is turned on for the first time 2 When adding a new indoor unit and power is turned on for the first time TOSHIBA Trial Operation Service Support Function Check function for connection of refrigerant pipe and control transmission line This function is provided to check misconnection of the refrigerant piping and the control transmission line between indoor and outdoor units by the switch on interface PC board of the inverter type outdoor unit However be sure to check items described below before implementing this check function 1 When group operation of the remote controller is performed and the connected outdoor units are used check function does not work 2 Use this check system to check lines one
80. LTI FAN BLADE ALL 09 43A60025 TERMINAL ABC PQ E ALL 02 43A21009 FAN MOTOR SMF 230 60 4A B056 10 43460012 TERMINAL E L N ALL 02 43121516 FAN MOTOR STF 200 100 4B B080 11 43469025 PCB CONTROL 00 02 ALL 02 43121528 FAN MOTOR STF 200 120 4B B112 12 43 69024 PC BOARD POWER MMS ALL 02 43121535 FAN MOTOR STF 200 140 4F B140 13 43A49009 PRESSURE SENSOR Service ALL 03 43A44068 REFRIGERATION ASSEMBLY B056 14 43A46037 PULSE MOTOR VALVE COIL ALL 03 43A44069 REFRIGERATION ASSEMBLY B080 15 43472004 DRAIN PAN ASSEMBLY B056 03 43A44070 REFRIGERATION ASSEMBLY B112 15 43472005 DRAIN PAN ASSEMBLY B080 03 43A44071 REFRIGERATION ASSEMBLY B140 15 43191310 DRAIN PAN ASSEMBLY B112 B140 04 43A50024 SENSOR ROOM TEMP ALL 16 43160394 CONNECTOR 9P ALL 05 43450021 SENSOR HEAT EX Gas ALL 17 43107215 SENSOR HOLDER ALL 06 43450022 SENSOR HEAT EX Liquid ALL 18 43125135 BEARING B140 07 43155080 MF CAPACITOR B056 19 43460009 BUSHING 38 mm ALL 07 43155096 MF CAPACITOR B080 B112 20 43488013 OWNERS MANUAL ALL 07 43155097 MF CAPACITOR B140 21 43A70002 DRAIN SOCKET ALL 08 43458007 TRANSFORMER MMS ALL 22 43125137 COUPLING B140 Exploded Views and Service Parts Built In Slim Duct MM SB028 TOSHIBA Indoor Units Part No Description 43107215 SEN SOR HOLDER Spring Clip
81. Push the push switch SW04 on the interface PC board It takes 15 minutes for 1 system to check of the inverter outdoor unit for 2 seconds or more if it is correct or miswired Check that display of the 7 segment LED B is CC in _ cooling operation In No of units displayed on the 7 segment No of indoor units which send the check code are also counted other then No of miswired units so After 15 minutes check the 7 segment LED B display check the check code which will be the No of indoor units misconnected If no unit is misconnected 00 is displayed 1 2 Then check the check code by setting SW01 to 5 5 02 5 03 in order of address 2 If any switch is set to 5 02 SW03 t 1 unit address of the misconnected indoor unit 9A is displayed on 7 segment LED B 7 segment LED A 1to 16 1 1to 16 y 11616 2 17 to 32 1to 16 3 33 to 40 After check return display select switches 5 01 5 02 SW03 on the interface PC board of the inverter outdoor unit to 1 Completion TOSHIBA Trial Operation Service Support Function Function to start stop ON OFF indoor unit from outdoor unit A function to start stop the following indoor units by switch operation on the interface PC board is provided No Function Outline Clear setup 1 Trial cooling The modes of all the connected indoor
82. TA sensor open sho TE1 sensor open short has been detected Confirm sensor is not disconnected TE1 sensor CN 505 confirm circuit and resistance value characteristics of sensor When the sensors are normal replace outdoor PC board Check code Operation cause 1C 1 Outdoor unit power source error Extension IC EEPROM alarm 2 Interface PC board error C Is there an irregularity of b Yes p b 1 i outor UNIE power source E Check noise interference from outside etc i Check interface PC board TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Compressor alarm Check code Operation cause Outdoor unit power source error 1d Inverter compressor circuit system error Inverter compressor error Inverter compressor refrigerant stagnation Defective inverter PC board O NH Confirm the power source supply C Is the power source voltage No of the outdoor unit normal v Yes Does voltage reduction occur Yes when the fixed speed compressor has been activated No Is the connection of No wiring on the inverter z Modify connector wiring PC board normal Yes y Yes Cis there an abnormal overload gt gt Modify cause of overload No the inverter compressor normal gt Compr
83. V B control is to control the liquid control refrigerant bypass by limiting discharge temperature or compressor internal temperature increase 1 Opening is controlled with pulses from 0 500 2 opening is controlled with temp detected by TS TD sensors 3 PMV openings are fully closed during thermostat OFF operation stop and emergency stop 2a Outdoor fan 1 Cooling fan control control 1 In a specified time when cooling operation is activated the master outdoor unit controls the outdoor fan speed no of fan driving waves by Pd pressure The slave outdoor unit controls the outdoor fan speed with temperature detected by TE sensor Pd pressure kgf cm G 22 21 1 wave 20 sec From 2 waves to 19 Max no of waves 18 17 16 15 14 13 12 11 Max 16 waves Hold From 1 wave to Max no of waves 1 wave 20 sec Up to 5 waves 1 wave 20 sec In up time From 0 wave to 1 wave In down time From 15 waves to 1 wave Interval 0 wave 180 control L 1 wave 30 sec PD pressure is maintained between 14 5 18 kgf cm G by the cooling fan control The no of waves can be controlled between 0 wave STO P to 16 waves all waves TOSHIBA Outline of Control Outdoor Unit Item Operation explanation and applied data etc Remarks 2b Outdoor fan control 1 Heating fan control 1 The number of waves is controlled accordin
84. W IC t has Fa Melde poxid paads pexi4 S ystemat Speed Un D Q hen Fixed ION W dosuas ZAS prousjos V ose JossaJdujo 12 gt gt Josuas gt Q ssedAq de 75505 5 Emergency Operat ing mo Combined Refrigerant P Cool uey peeds pexiJ z PUN XHO820V lAIW DL prousjos anea A240 JA YEAS 47 piou losO A peu5 Io CR DW Josuas SARIS ANIEA payped edid 3e pauado S Kre ride autof peu Josues 7 ase JAoss iduuo5 pexid paeds JayeAu b 2 5 prousjos Ago CO 26 5 piousjos ssedAq 8 JOJOW asing Josusg JOULES T PUN Jase LHO8ZOV WIN THX Awd pinbi
85. WAY VALVE MODEL MM A0280HT MM A0224HT MM A0280HX MM A0224HX MM A0160HX Model Name CHV 0712 CHV 0712 CHV 0712 CHV 0712 CHV 0401 Coil Specification AC240V AC240V AC240V AC240V AC240V 028 MM A0224HT MM A0280HX MM A0224HX MM A0160HX PARTS NAME SPECIFICATION Model Name STF 200 350A Motor Type 1 Phase induction motor Power Supply AC 220 240V 1 Phase 50Hz Output W 400 Current A 4 81 5 89 Pole P 6 Model Name IN V2 ACB JB128 FIX ACB JA64 High Pressure Switch Operating Pressure kgf cm G Operation 3 2 Reset 2 55 Model Name 150NH4 H Operating Conditions 0 3 33MPa Model Name 150NH4 L PUMP Nees O perating Conditions 0 0 98MPa Compressor Case Heater AC240V 74W Accumulator Case Heater AC240V 29W At 50 C 18 1KQ At 100 C 3 35KQW At 09 234 6KQ At 259C 2 10 0KQ At 50 C 3 4KQ L12A 03 DC12V A12A 15 DC12V VPV 603D Coil 240V NEV 202D Coil 240V Discharge Temperature Sensor Suction Temperature Sensor Pulse Modulating Valve Pulse Modulating Valve For Cooling Bypass 2 way Valve 2 way Valve Built In Duct MM B140 TOSHIBA Parts Specifications Indoor Units No PARTS NAME TYPE SPECFICATIONS 1 Fan Moto
86. an motor Yes Y Is there a screw loose on Yes the IGBT module or heat sink gt Tighten screws on inverter PC board No Y Is there a blockage in the Yes lt heat sink cooling duct 2 ee No Y C Check inverter PC board D TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause db Oil level detection circuit 1 Blockage in SV3C valve 2 Blockage in SV3C valve circuit blockage detection Modify miswiring TK1 sensor CN516 TK2 sensor CN515 TK3 sensor CN 507 TK1 TK2 TK3 sensor Is there miswiring of Yes Sensor error sensor normal Yes Is the resistance value No characteristics of TK1 TK2 Replace blocked part Yes lt Is there blockage in SV3C gt gt Is the connection of SV3C valve coil and the coil nit normal No blockage Modify coil connection SV3C CN314 Coil error gt Replace the coil Check interface PC board 1 SV3C valve blockage check procedure l After resetting the power supply start a trial operation 2 Set SW01 SW02 SW03 on interface PC board to 1 16 1 respectively 3 Check the 7 segment display of interface PC board 7 segment display O E o mL OL FF or Numeral OL AO A1 or A3 When operation has started During detection of oil level Judgem
87. ause an accident A Ventilate the area if any refrigerant leaks during installation If the refrigerant comes into contact with an open flame it will produce a toxic gas A After completing installation make sure that no refrigerant is leaking If the refrigerant leaks indoors and comes into contact with an open flame in a water heater stove oven or other such appliance it will produce a toxic gas N Electrical work must be performed by a qualified electrician as described in the Installation Manual The unit must be connected to its own independent circuit Inadequate circuit capacity or improper installation could result in electric shock or fire N Wiring must be performed securely using the prescribed cables The cables must be secured in a manner that prevents any force that pulls on the cables from being relayed to the terminal connectors If the cables are not connected or secured properly fire or other accidents could result A The unit must be grounded Do not connect the ground wire to a gas pipe water pipe lightning rod or telephone ground wire When wiring the system to the main power source follow the standards established by the local power company Inadequate grounding can result in electric shock A Do not install the unit in a location where combustible gases could conceivably leak Leaking gases that accumulate in the vicinity of the unit could be ignited by the unit TOSHIBA Introduction 1 Outdoor Unit
88. ck power supply wiring TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Ps sensor error 2 Ps sensor connection error 3 Compressor error b4 Ps sensor alarm Are Pd sensor Ps sensor No Check connection correctly connected 4 sensor 501 Ps sensor 500 Are the output voltage No characteristics of Ps sensor Sensor error normal P Is the low pressure below No 0 95MPa during operation of gt Check compressor compressor Yes C Check interface PC board D Check code Operation cause b5 Indoor outside input alarm 1 External device error b6 2 Indoor PC board error Indoor outside interlock to connector CN 17 the external device No Check indoor PC board If defective replace Is the external device No Check external device operating normally If defective replace 9 C Check cause of the operation D Check code Operation cause b9 Output voltage error of indoor pressure sensor Indoor pressure sensor alarm There is an abnormal output voltage of indoor pressure sensor Check connector CN 23 and output voltage of the sensor If the sensor is normal replace the indoor PC board TOSHIBA Troubles hoot ing Diagnostic P
89. de outlet duct size 45 9144 45 018 A 170 Refrigerant pipe connection 4 Way Cassette Construction Views MM U112 MM U140 TOSHIBA Indoor Units 185 for side ducts 150 dur e Refrigerant pipe connection both sides 106 80 100 Gas side 219 0 Refrigerant pipe connection N r Liquid side 09 5 RIP al E m 9 SH 8 amp uu Ir al 8 Ceiling 02 _ Wiring connection Celling Drain pipe Gland plate 3x 20 holes 9 Si pane 1 BSP threaded 605 connection n 42 290 p 1 Tw HBS 5 Kul m 8885 accu 499 5 amp 8eE TL 8482 EERE Balle T ES go 8198 P lt NS Fresh air inlet T
90. door address incorrect Outdoor master unit incorrect Server outdoor unit error Oil temp TK1 sensor short circuit Oil temp TK2 sensor short circuit Oil temp TK3 sensor short circuit Oil level low detection Oil temp TK1 detection error Oil temp TK2 detection error SV3C valve blockage detection SV3C valve leakage detection PMV refrigerant leakage detection Outdoor address undefined Missing of R phase 04 08 18 0 2 pan Ab ng bb AE 432 Fl EQ pg py Es bd 1 Eb 95 96 89 gd 41 42 44 ds qe 47 dg 9 db dC dd 87 Fixed Speed outdoor unit H 18 0 yy 2 pan Ab AG AE AT 22 pee El FO Eg bd AE 1 1 dg ags ade dg do db qc dd 87 Indoor address undefined Outdoor Unit Interface segment CHECK code No display on the remote controller Note To retrieve fault codes ensure rotary switches 1 2 and 3 on the Outdoor Interface PCB MCC 1343 01 are all set to 1 factory default setting Individual Indoor Fault C
91. e outdoor unit fully open O pen valves fully Yes Y Is the cooling bypass PMV B No 2 lt normal Cooling bypass PMV B error Yes No lt Is wiring correct gt t o Set normal wiring Yes Check miswiring of the outdoor unit according to miswiring check function Y Insufficient refrigerant blockage pipe breakage TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause E6 Fixed speed IOL OL system alarm 1 F1 Fixed speed IOL OL system alarm 2 H Power supply error Fixed speed compressor IO L operation Service valve closed Blockage in indoor outdoor PMV Miswiring of communication between indoor and outdoor units Does OCR operate E6 IOL operation circuit error compressor 1 side F1 IOL operation circuit error compressor 2 side UN Check the OCR reset ini Manual reset No Is OCR circuit normal 1 0CR unit 2 0CR wiring No Yes Check the following 1 Power supply voltage is 380 400 415V No 2 Phase missing short circuit of fixed speed compressor power supply Yes Repair power supply Y Is Mg SW faulty Repair circuit Are gas pipe liquid pipe and service valve of the outdoor unit fully open Open valves fully Is th
92. e cooling bypass No PMV B normal Yes Y Replace Mg SW Is ana speed compressor normal 1 15 compressor winding normal 2 15 compressor locked No Yes Replace fixed speed compressor Overload operation liquid compression Cooling bypass PMV B error Is IOL circuit normal gt Repair IO L circuit 1 Connector No 2 Wiring 3 O utdoor PC board Yes Y x No lt Is wiring normal 3 Yes Y C Insufficient refrigerant blockage pipe breakage gt Correct wiring Check miswiring of the outdoor unit according to miswiring check function TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Segment Display Function Outdoor unit 7 segment display Interface P C board A 7 segment LED to check the operation status is provided on the interface control PC board The display contents can be selected by combining the setup numbers of the rotary switches 5 01 5 02 SWO3 the PC board 7 segment 7 segment display A display B F VEET OWIN CPU swo4 m an 2 1 2 1 0716 0717 D714 0715 7 segment 7 segment LED A LED B position position position position Check Procedure when Emergency Stop has Occurred When the system has stopped due to an error of the outdoor unit check the following items
93. e sides for each individual refrigerant system Ensure pressure is applied Low High pressure pressure Connected to Indoor Unit gauge gauge Mati Packed valve fully 22 Cx SK closed gas side VL Gauge Inverter Outdoor Unit manifold Detailed drawing of packed valve Brazed M CH Gas side OF 4 pam E TY service port Service m AA o gauge manifo 5 5 g ig Gas side Fuly port pipe 9 Liquid side packed valve closed M service port qu 5 06 4 Liquid side dm Service port Copper To main 5 packed valve pe unit Packed valve fully PIRE To main Fully 0 liquid side E service port ume closed Jib Piping Pipin Balance ping packed valve at site at site ON e Packed valve fully To main unit Closed balance Piping at site ils Connected to other fixed speed O utdoor Unit STEP 1 0 3MPa 3 0kg cm G Apply pressure for at least 3 minutes STEP2 1 5MPa 15 0kg cm G Apply pressure for at least 3 minutes STEP 3 3 0 30 0kg cm G Apply pressure for 24 hours This step permits detection of slow leaks Check for any loss of pressure No loss of pressure Pass Loss of pressure Check for location of leak Ensure you allow for any change in ambient temperature when the pressure was initially
94. ecuted as necessary except during stop time and thermostat O FF time 1 Contents of control SV2 is opened when Ps pressure 0 8 kgf cm G SV2 is closed when Ps pressure gt 1 2 kgf cm G 3 SV2 compressor case bypass control This control is to prevent oil dilution This control is individually executed by the master outdoor unit and each slave outdoor unit This control is executed during compressor O except during oil level detection control 1 Contents of control SV2 is opened when the following conditions are satisfied Compressor status changes from OFF to ON Oil recovery control is performed in cooling mode SV2 is opened when TK3 sensor detects 2 C or lower and closed when TK3 sensor detects 5 C or higher temperature during compressor ON time No of outdoor fan waves is 3 waves or less during cooling compressor O Fixed speed compressor high pressure release control This control is to stop the fixed speed compressor of each outdoor unit according to Pd pressure value This control is individually executed by the master outdoor unit and each slave outdoor unit 1 Contents of control The fixed speed compressor stops when Pd pressure is over P1 Table 7a Sets the fixed speed compressor reactivation time for 10 minutes and the control finishes No 2 compressor stops with Pdz P1 26 5 kgf cm G No 1 compressor stops with Pdz P1 27 5 kgf cm G
95. ed liquid side Balance To main Fully service port unit Pipita closed q Piping ipi I Balance i at site packed 3 alale I E zz To Packed valve fully dosed balance 1 E T 5 Piping SESS Connected to other fixed speed Outdoor Unit 2 Use a vacuum pump with a large displacement so that the vacuum will achieve below 755mmHg 3 Perform vacuuming for 2 or 3 hours though time requirement differs due to pipe length During this time check that all packed valves at liquid gas and balance sides are fully closed 4 If vacuuming does not reach 755mmHg or below even after vacuuming for 2 hours or more perform vacuuming for a futher hour If vacuuming still does not reach 755mmHg after 3 hours check for leakage 5 When vacuuming reaches 755mmHg or below after vacuuming fully close valves Close VL and the gauge manifold fully stop the vacuum pump After 1 hour check the vacuum gauge reading has not change If there is a change there may be a leak Check for leak 6 After the above procedure of vacuuming has completed replace the vacuum pump with a refrigerant cylinder and advance to additional refrigerant charging work TOSHIBA Refrigerant Pipe Installation Charging the System with Additional Refrigerant Calculating the Amount of Additional Refrigerant Required Refrigerant in the System When Shipped from the Factory Outdoor unit Model MM A0224HT MM
96. ed unit is connected select it as the master outdoor unit 2 When two or more fixed speed units are connected select one connected to the nearest position of the inverter unit as the master outdoor unit 4 Perform the following works for the fixed speed unit selected as the master outdoor unit 1 Insert Short circuit connector into CN 604 on the interface PC board One removed from the inverter unit as 2 4 2 Set DIP SWO07 Bit 3 on the interface PC board to ON Setup to correct oil recovery capacity 3 Set DIP SWOS Bit 2 the interface PC board to ON Setup to select master outdoor unit 5 Turn on the source power of each outdoor unit 6 Emergency process is complete The operation then starts by a command from the indoor unit TOSHIBA Backup Operation H Emergency Operation Outdoor backup setup in cooling season Simple setting method Outline When either inverter unit or fixed speed unit fails during cooling season this function is used to perform emergency operation quickly When the interface or electric circuit system fails emergency operation by this setup cannot be performed In this case refer to When outdoor unit has failed section Work procedure 1 First turn off the source power of all the outdoor units which are connected to the system 2 The following works are performed to the failed outdoor unit Even if the failed outdoor unit is the inverter unit or fixed speed unit the f
97. emote address setup controller is unavailable 0 OFF Address setup by remote controller is available For contents of address setup see the next page 5W03 TA adjust No 1 ON Normal No 2 OFF Normal 5 06 Ceiling height No 1 OFF Normal No 2 OFF Normal When height of ceiling exceeds 2 7m set No 1 to ON SW07 Central control Tum e ommunication error switching ON Non relay No 1 D orma OFF Communication OK setup For contents of switch setup see section 5 TOSHIBA Control Circuit Configuration BH Indoor Units 5 Contents of switch setup Network address setup table by DIP switch SW02 e After turning off the power source set 7 of DIP switch SW02 to ON Address setup from the remote controller becomes unavailable Address DIP switch SWO2 Address DIP switch 5 02 No 1 2 3 4 5 6 Ne 1 2 3 4 5 6 1 X X X X X X 33 X X X X X 0 2 0 X X X X X 34 0 X X X X 0 3 X 0 X X X X 35 X 0 X X X 0 4 0 0 X X X X 36 0 0 X X X 0 5 X X X X X 37 X X X X 6 X X X X 38 X X X 7 X 0 X X X 39 X X X 8 X X X 40 X X 9 X X X X X 41 X X X X
98. ent result of oil level In case of judgment result AO A1 Oil level is adequate Resume the operation In case of judgment result Possibility of SV3C valve circuit blockage is considered Check the following items BE 4 Start a trial operation confirm that AC220V 240V power is to SV3C valve 8 5 After operation for several minutes check the temperature at the secondary side of SV3C A gt When temperature is high equivalent to discharge temperature at B valve is not blocked Check joint Oil Capillary separator a Strainer Accumulator Check joint Check SV3B valve Y Kro SV3B fi Strainer gt If blocked part is found replace Cm Strainer the part X Balancing pipe valve TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause dC Oil level detection circuit leakage detection Is the resistance value N characteristics of TK1 2 1 SV3C valve leakage 2 TK1 sensor resistance value characteristics error 3 Outdoor unit operation in high external temperatures sensor normal Sensor error Yes The protective stop is due to Yes Is it an operation in high Yes operation in high ambient p ever ambient temperature O utside temperature
99. es error Blockage in oil return circuit of oil separator So Blockage in oil tank circuit Are balancing pipe valves of all outdoor units No Open balancing pipe valve fully fully open gt reset power supply and start the operation O pen compressor case oil removal valve fully reset Troubles hoot ing Is the compressor case oil No removal valve fully open power supply and start the operation Yes Check connector No Are TK1 and TK2 sensors a rs sensor CN516 correctly connected Ps sensor CN515 1 Is there a 2 way valve E 77 leakage SV3A SV3C or Replace defective part blockage SV3B Yes No Leakage Blockage Refrigerant stagnation is detected 2 Is there a blockage in theN Yes oil return circuit of oil separator gt Replace defective part Capillary strainer No blockage Is there blockage in 2 way Yes valve of all outdoor units in the gt Replace defective part connecting line SV3A SV3C 7 No blockage Y Check refrigerant stagnation Replace oil tank circuit in compressor case reset the power source and then start the operation Check code Operation cause TOSHIBA Troubles hoot ing H Diagnostic Procedure for Check Code 1 2 way valve leakage blockage check procedure A
100. essor error Yes Y et mm Is there refrigerant stagnation Is the inverter winding Yes u e h H v output normal 2 operation No Y C Check inverter PC board Check inverter board TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1F Compressor break down 1 Outdoor unit power source error 2 Inverter compressor circuit system error 3 Inverter PC board error Is the power source voltage No of the outdoor unit normal Yes Does the voltage reduction Yes gt Confirm the power source supply occur when the fixed speed compressor has been activated Is the wiring connection No on the inverter PC board correct Yes Y Modify wiring connector gt Yes lt Is there an abnormal overload gt No Y C Check inverter PC board Remove cause of overload TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 21 Inverter high pressure SW system alarm E SO SND Or E D TU E Refrigerant over charge Inverter high pressure SW error Inverter IOL Inner Overload operation Service valve closed O utdoor fan capacitor error Indoor O utdoor PMV blockage Outdoor heat exchanger blockage SV2 circuit blockage Ind
101. etection error lt SW04 gt Push function Oil level judgment control forcible start Detection starts after timer count down lt SW05 gt Push function Oil level shortage status Continuous counter display Displayed for several seconds NOTE The push switch function operates by input from the inverter unit TOSHIBA Self Diagnostic Display Information Outdoor Units 3 Outdoor cycle data display Displayed on each outdoor unit SW03 SW02 SW01 Displayed content 2 1 1 Pd pressure sensor Pressure sensor data is displayed with MPaG A B L x TD1 temp sensor Temp sensor data is displayed Symbol t d 1 with Data 4 TD2 temp sensor Symbol display and data display are Symbol t d 2 alternately exchanged every several Data X Ek seconds 5 TS temp sensor Symbol t s Data is displayed in the part marke with Did Data 6 TE1 temp sensor Symbol t E 1 f data is negative data X is displayed Data 8 TK1 temp sensor Symbol t F 1 Data 9 TK2 temp sensor Symbol t F 2 Data 10 TK3 temp sensor Symbol t 3 Data
102. f other cycle part system a Remove BUS 1 communication connector BLU CN601 on the interface PC board b Works to the failed fixed speed unit are complete Then turn on the source power to protect the compressor Turn on crank case heater 3 Perform the following works for the inverter unit 1 Set DIP SW 07 Bit 3 on the interface PC board to ON Setup to correct oil recovery capacity 2 Turn on the source power of each outdoor unit 3 Set operation permission of outdoor unit backup operation alarm dear setup a Set rotary switches on the interface PC board SW03 to No 1 SW02 to o 1 SWO1 to No 1 b After U 1 8 d is displayed on the 7 segment LED of the interface PC board set SW03 to No 1 SW02 to 16 5 01 to No 2 c After E r is displayed on the 7 segment LED of the interface PC board keep push switch SW04 pushed for 5 seconds or more E Jir C L is displayed on the 7 segment LED for 5 seconds and work is complete d Set SW03 to No 1 5SW02 to No 1 SW01 to No 1 If U 1 is displayed on the 7 segment LED it is normal 4 Then emergency process is complete The operation then starts by a command from the indoor unit TOSHIBA Backup Operation Emergency Operation Fault of inverter unit Backup setup of Master outdoor unit Outline When an inverter unit fails firstly perform emergency process according to the following work procedure and then perform
103. failure of outdoor unit when alarm mode such as one of the following cases occurs 1 Fault of compressor Short or when one compressor is not operating 2 Fault of pressure sensor Pd Ps fault of temp sensor TD1 TD2 TS TE TK1 TK2 TK3 3 Fault of refrigerating cycle parts fan system parts interface PC board inverter PC board electric part system etc CAUTION Emergency operation should only be completed on 1 outdoor unit per system TOSHIBA Backup Operation Emergency Operation Fault in fixed speed unit Backup of slave outdoor unit Outline When a fixed speed unit connected to the system fails firstly perform emergency process according to the following work procedure and then perform emergency operation on the inverter unit and other fixed speed units Work procedure 1 First turn off the source power of all the outdoor units which are connected to the system 2 The following works are performed to the failed fixed speed unit 1 Close service valve of gas pipe fully fully close by turning clockwise 2 If refrigerant leakage occurs on PMVB close service valve of the liquid pipes Fully close by turning clockwise 3 Check service valve of the balancing pipe is open fully fully open by turning counterclockwise 4 In case of fault of compressor fault of electric part system a Works to the failed fixed speed unit are complete b Then keep the source power OFF 5 In case of fault o
104. frigerants must be suitably qualified in accordance with local and national codes of practice and statutory requirements Note 5 Legislation may regulate the removal of waste refrigerant from the systems We advise awareness of any regulations and duty of care Waste refrigerant must N EVER be discharged to atmosphere Note 6 Electrical work should be in accordance with all relevant codes of practice and should be carried out by suitably qualified personnel Note 7 Metric Imperial pipe conversion Diameter mm 6 4 9 5 12 7 15 9 19 0 22 0 286 349 41 3 54 1 Nominal diameter inch 1 4 V 1 1 1 2 Note 8 Within this manual Outdoor Unit IDU Indoor Unit R C Remote Controller D O L Direct On Line compressor INV HP Inverter ODU FIX Fixed Speed ODU DB Dry Bulb WB Wet Bulb Mg Sw Magnetic Contactor IOL Inner Overload Relay OCR O ver Current Relay IGBT Note 9 MPaG kgf cm G Conversion multiplier 10MPaG 10 2kgf cm G Inverter Gate Bi Polar Transistor TOSHIBA Operating Conditions 1 Model name OUTDOOR MM A0280HT D 5 A Outdoor gt 0280 28 0kW 10HP c Cooling T Inverter 0224 22 4kW 8 H Heating s 0160 16 0kW 6HP 8 gt INDOOR MM TUO
105. fter resetting the power supply start a trial operation 7 segment display 2 Set SW01 SW02 SW03 on interface PC board to When operation has started OL 1 16 1 respectively During detection of oil level OL FF or Numeral 3 Check the 7 segment display of the interface PC board Lussement result of oil level OL A1 In case of judgment result AO Oil level is adequate Resume the operation In case of judgment result A1 gt Oil level is insufficient Check the following items Remove SV3C valve coil reset the power supply and start the trial operation D 4 After operation for several minutes check ki sensor SBE M e r temperature at secondary side of SV3C strainer separator w Strainer valve A gt When temperature is high Equivalent to discharge temp leakage occurs we from SV3C valve Capillary e Accumulator Check joint Replace SV3C coil m 5 Remove SV3A coil and start a Checks sao SV3B trial operation under condition that BN ME n a AC220V 240V power is and SV3C valve I strainer is connected Strainer 6 After operation for several minutes check x pedo peels temperature at secondary side of SV3A valve B gt When temperature is high equivalent to discharge temp leakage occurs from SV3A valve Replace SV3A coil 7 Using cha
106. g to the TE sensor temperature 2 If TE 20 is constantly detected for 5 minutes the operation will automatically shut down This is the same condition as when the thermostat automatically becomes switched off thus the operation will automatically start again 3 When the above condition 2 persists and the high pressure SW operates check the suction area of the indoor unit for blockages Ensure that the filter is clean and start the operation 4 After the fan is switched on this control does not operate during defrost mode TE temperature zone minimum compulsory stop timer count B zone 2 20 seconds down to the minimum C zone 1 20 seconds down to the minimum D zone hold maintain the current rate E zone 1 20 seconds up to the maximum e N e F zone Maximum revolutions number 16 Fixed speed slave units not operating will maintain the ODU fan at 1 wave to prevent refrigerant from remaining in the O DU Heat Exchanger 3 Capacity calculation By the capacity request command from the indoor controller the inverter operation command of the master outdoor unit ON OFF control of the fixed speed compressor and the slave outdoor unit are determined The master outdoor unit sets up activation priority order of the slave outdoor units connected to the system and starts the operation Example of 30HP system HP 30 25 inventen I Fixed
107. ible with Toshiba s Multi Modular System Vertical lift between indoor units of 30m is the highest in the market This allows for greater flexibility in the location of the system Line Header Branching Header Outdoor Unit Allowable pipe length 100m real length Outdoor 2 Equivalent to 125m unit 2 Multiple indoor units Indoor units with different capacities and configurations can be combined up to 13596 of the outdoor unit capacity A maximum of 40 indoor units can be combined with the 46 HP outdoor module Branching joint Indoor Unit Line Branching after Header Branching Outdoor Unit gt Intelligent control Toshiba s MMS intelligent controls and modulating valves deliver the required capacity according to the load variation from 50 to 100 The intelligent controls and modulating valves limit or increase the cooling heating capacity dynamically so humidity and temperature are kept in the comfort zone Branching joint Header Height difference between indoor unit and outdoor unit 30m Height difference between indoor unit and outdoor unit 50m Indoor Unit N From 1st branching to the farthest indoor unit 50m N V Outdoor Unit Header Header Indoor Unit TOSHIBA Parts Specifications Indoor Units
108. ice port at balance side I DAI Packed valve Piping Piping Refrigerant at balance side at site at site L bottle ke Indoor Unit Packed valve Gas side 1 E n gas Scales N Piping at site Gas pipe TOSHIBA Refrigerant Pipe Installation Additional Refrigerant Charging Additional refrigerant charging amount reference chart Unit kg Actual Pipe size Liquid pipe Actual Pipe size Liquid pipe lads Gut 06 4 09 5 12 7 015 9 019 0 0222 mj 06 4 09 5 012 7 015 9 019 0 2222 1 0 030 0 065 0 115 0 190 0 290 0 420 31 0 930 2 015 3 565 5 890 8 990 13 020 2 0 060 0 130 0 230 0 380 0 580 0 840 32 0 960 2 080 3 680 6 080 9 280 13 440 3 0 090 0 195 0 345 0 570 0 870 1 260 33 0 990 2 145 3 795 6 270 9 570 13 860 4 0 120 0 260 0 460 0 760 1 160 1 680 34 1 020 2 210 3 910 6 460 9 860 14 280 5 0 150 0 325 0 575 0 950 1 450 2 100 35 1 050 2 275 4 025 6 650 10 150 14 700 6 0 180 0 390 0 690 1 140 1 740 2 520 36 1 080 2 340 4 140 6 840 10 440 15 120 7 0 210 0 455 0 805 1 330 2 030 2 940 37 1 110 2 405 4 255 7 030 10 730 15 540 8 0 240 0 520 0 920 1 520 2 320 3 360 38 1 140 2 470 4 370 7 220 11 020 15 960 9 0 270
109. indoor control PC board can correspond to multiple models When replacing MCC 1361 01 PC board assembly set DIP switch rotary switch and jumper according to the following description PCB Label Model CM00C01 MM U140 MM U112 MM U080 MM U056 CM00C02 MM B140 MM B112 MM B080 MM B056 MM SB028 Switch setup 1 SWO1 Indoor unit No Match to No which the rotary switch is setup Master unit 1 Server units 2 to 16 2 SW02 Network address Match to setup contents of PC board before replacement 5 03 Match to setup contents of PC board before replacement 4 5 06 Match to the setup contents of PC board before replacement In some models it is not available 5 SW07 Central Control Switching Match to the setup contents of PC board before replacement 6 SW08 HP setup Match to the setup contents of PC board before replacement Jumper setup Match to the setup contents of PC board before replacement In some models the following selections are provided Provided X None 1 3 n 0 Filter timer 120H X Filter timer 2500H PCB label TOSHIBA Troubles hoot ing Remote Controller Check Display Main Remote Controller Operating and Reading the Check Push the CHECK button and the identification number of the faulty indoor unit is shown in the Temperature Setup section of the display and the check code is shown in
110. indoor outdoor inter unit wire bus communication line is defective CHECK STAN DBY display TOSHIBA Troubles hoot ing Self Diagnostic Function Liquid crystal remote controller CHECK code O ver capacity Abnormal phase connection Indoor drain overflow alarm Remote Controller 7 Remote controller serial signal circuit 99 Remote Controller Indoor Unit Indoor sensor TA short or open circuit Indoor heat exchanger sensor TC1 short circuit 93 Indoor heat exchanger sensor TC2 short circuit 94 Indoor Indoor pressure sensor short circuit Unit 3 Motor short circuit Drain pump fault 0 11 Ob Refrigerant circulation amount shortage judgement 9F Indoor outdoor communication short circuit Central management communication short circuit 97 95 Inverter outdoor unit Central management address setup fault 98 External input display fault 5 Low level refrigerant leak if RBC RD1 PE fitted External interlock display fault b6 High level refrigerant leak if RBC RD1 PE fitted Indoor Unit miswiring misconnection 9A Indoor PC board short circuit 12 Outdoor Outdoor IPDU Unit High pressure SW circuit 21 G Tr short circuit protective operation
111. inside the oil tank during ON time CN314 2 Detects oil level with temp system 4 SV2 Hot gas bypass Compressor case bypass CN312 1 Low pressure release valve 1 Maintains oil viscosity To protect reduction of low pressure 2 Protects liquid refrigerant gathering in accumulator 3 Gas balancing in STOP time 5 SV41 SV42 Activation compensating valve for fixed speed compressor CN311 1 For activation of gas balance 2 Deflates gas in discharge pipe Protects liquid stagnation in discharge pipe Check Check valve 1 Protects counter pressure when the inverter compressor is operating and the fixed valve for discharge speed compressor stops 2 Decreases activation load when fixed speed compressor is activated Shared function with SV41 SV42 valve Pulse 1 PMVB Cooling bypass Connector CN 302 Red motor valve 1 Liquid bypass proportional control function for releasing discharge temperature 2 Releases low pressure Oil separator 1 Early protection of oil level down Decreases flow out of discharge oil to cycle Temp 1 TD1 CN502 TD1 Connector Red TD2 Connector White sensor 2 503 1 Used to protect discharge temperature from the compressor 2 Used to control cooling bypass for releasing discharge temperature 2 TS1 CN504 Connector White 1 Used to control cooling bypass for releasing discharge temperature 3 TK1 CN516 TK1 Connector Black TK2 Connector
112. ion circuit Temp change at both the oil tank primary side and secondary side was not blockage detection detected while oil level detection control was implemented Oil level detection circuit The status of TK1 temp is high 50 or more and was continuously dc detected Operation procedure 1 Start the trial operation after alarm was cleared 2 Set SW01 SW02 SW03 on the interface PC board of the outdoor unit to 1 16 1 respectively for detection 7 segment display of oil level 3 Push the push switch rr jd M uring operation ounte own every seconds trom SW04 for 2 seconds Oil level detection control starts gt OL FF 4 Check the 7 segment During oil level detection counting Counted up every 1 second from OL 01 display on the PC board oil level judgment result OL A0 A1 A2 A3 A4 Oil level judgment result Result Judgment Oil amount in the compressor is adequate Check that the operation continues and there is no problem If dC occurred execute check even if oil level was judged as adequate A1 Oil level was judged as shortage If this judgment continues the system stops for protection When d7 dC occurred check according to the check items A2 TK1 temp detection was judged as an error If this judgment continues the system stops for protection When d8 occurred check according to the check items A3 Oil level de
113. ion signal from indoor Inverter drive O utdoor fan output Fixed speed Mg SW output Each solenoid valve output 4 way valve output OFF in cooling time Ful Full PMV output close Specified opening close Thermostat ON Thermostat OFF Thermostat ON Thermostat O FF O peration signal from indoor Inverter drive OFF on Outdoor fan output OFF di Fixed speed Mg SW output gie Each solenoid valve output OFF ON or OFF 1 5 2 minutes 1 30 seconds 4 way valve output OFF in cooling time Ful Full PMV output close Specified opening close TOSHIBA Outline of Control Outdoor Unit Item Operation explanation and applied data etc Remarks la Electronic 1 PMV A control PMV x 2 expansion 1 The PMV pulse motor valve is controlled valve PMV between 100 1000 pulses during the control operation 2 The PMV is fully open during the cooling operation PMV A1 500 pulses PMV A2 500 pulses 3 During the heating operation the opening rate is determined by the temperature which the TS TD sensor detects and the pressure rate which PS detects Super heat control 4 The PMV is fully open when the thermostat is off when the operation is switched off or when the operation is ceased under abnormal circumstances 1000 PMV 330 opening 500 rate 100 50 Min Mid Max 1b Pulse motor 1 PMV B control valve PMV The purpose of PM
114. ions N Read these Safety Notes carefully before installing this unit AN These Safety N otes contain very important safety information Always be sure to observe these cautions AN After installation is complete trial the operation of the unit to make sure that it is operating normally Instruct the customer about how to operate the unit and about necessary maintenance N The dealer or a special contractor must install this unit Attempts to install this unit by a customer could result in leaks electric shock or fire Improper installation could result in leaks electric shock or fire N If this unit is installed in a small room measures must be taken to ensure that even in the event of a refrigerant leak the maximum safe limit for refrigerant concentration levels in the air is not exceeded Consult the dealer for details on what measures can be taken to keep from exceeding the maximum safe limit If a refrigerant leak does cause refrigerant concentration levels in the air to exceed the maximum safe limit asphyxiation could result AN Select a location for installation that will be able to safely bear the weight of the unit If the installation location is not strong enough to support the unit and the unit falls injury could result A Install the unit in the prescribed manner to withstand strong hurricane level winds and earthquakes Insufficiently secure installation could allow the unit to tip over fall or otherwise c
115. it Ensure that there is sufficient space around the indoor unit for installation and servicing Provide an inspection hole in this position Model A B E F OG H J K M N MM B056 700 750 780 12 7 6 4 252 280 280 1 2 MM B080 1 000 1 05011 080 15 9 9 5 252 580 290 2 3 MM B112 140 1 350 1 4001 430 19 0 9 5 252 930 310 3 4 Unit mm TOSHIBA Construction Views Indoor Units Built In Slim Duct 5 028 S cve Sere Jay lu 008 uorueuup PUn Ss pjeoq 4494S Jet uon euuoo 458 T uon euuo edid SN J9M01 JI jeuond o os jiu T 0 87 166 0 NT pueog aeyeus pno ary Jay L ZT seo uon euuoo edid w Un m o w a 90 pinbr edid 002 4oyoeded pue 08r eouen 4 Way Cassette MM U056 MM U080 TOSHIBA Construction Views Indoor Units
116. itor error 22 Indoor Outdoor PMV blockage High pressure protective operation NOW Outdoor heat exchanger blockage SV2 circuit blockage Communication error between indoor and outdoor units Is the high pressure sensor No Check parts characteristics normal If defective replace Yes Y No lt Is service valve fully open gt 5 Y No gt Open service valve fully lt Does the outdoor fan operate Yes Is there a problem with the outdoor unit heat exchanger Yes Blockage of heat exchanger Short circuit No Remove cause Y Is SV2 bypass circuit normal Yes Repair SV2 bypass circuit Coil error disconnection of wiring etc Y Refrigerant over charge Blockage Pipe breakage Abnormal overload Are the connections for the No capacitor and fan motor normal Yes Repair defective part Y Check outdoor interface PC board If defective replace TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 87 m Missing phase Missing phase of outdoor unit power source A Phase of the outdoor unit power source is missing Modify the power source wiring Check code Operation cause 1 No of connected indoor units connected over capacity 2 Inco
117. lize PMV is heard If this sound is not heard PMV operation error may be present However this sound may not be heard ata place where outside noise takes prominence 2 Do not remove the driving part Head part of PMV during operation 3 When replacing a PMV set never operate the unit with the head part removed 4 When removing the driving part and attaching it again push in it securely until a click sound can be heard Then turn the power off and turn on again TOSHIBA Outline of Control Indoor Units Item Operation explanation and applied data etc Remarks 1 Power source 1 Automatic remote controller function setup Operation mode is reset Based upon the result of selecting indoor unit range Air volume model setup and display range of the remote select Louver controller presence 2 Operation 1 Based upon the operation select command from the select remote controller or central controller the operation mode is selected Remote controller command Control outline STOP Stops air conditioner FAN Fan operation COOL Cooling operation HEAT Heating operation 3 Room temp control 1 Adjustment range In cooling heating Remote controller setup temp 18 to 29 C O peration temp 18 to 29 C 2 Operation point with compressor O FF 3 Operation temp precision 1 C 4 Differential 1 C 4 Automatic 1 Based upon difference between Ta and Ts
118. lockage Strainer blockage Yes C Is TK2 sensor out of place Modify sensor mounting Correct the pipe so that the TK2 Y VS le e norin contact 55 gt sensor circuit does not touch the with discharge pipe discharge pipe a Modify miswiring Is there a miswiring of Yes a TK1 sensor CN516 TK1 TK2 TK3 sensor TK2 sensor CN515 TK3 sensor CN507 Is the resistance value No characteristics of TK2 sensor gt Sensor error normal Is there a leakage or Yes blockage in the peripheral gt Replace leaked blockage part circuit of the oil tank 1 wa 4 Check interface PC board D TOSHIBA 1 Oil tank peripheral circuit leakage blockage check procedure l After resetting the power supply start a trial operation 2 Set SW01 SW02 SW03 on interface PC board to 1 16 1 respectively 3 Check the 7 segment display of the interface PC board 7 segment display When operation has started OL o During detection of oil level OL FF Numeral Judgement result of oil level OL Al or A4 In case of judgment result AO A1 Oil level is adequate Resume the operation In case of judgment result A4 Possibility of oil tank circuit leakage blockage is considered Check the following items 4 Start a trial operation confirm that
119. mer starts counting again At the same time the indoor PMV minimum opening signal is also sent to the indoor controller Recovery time Approx 2 min to 6 min though it differs according to the system capacity TOSHIBA Outline of Control Item Outdoor Unit Operation explanation and applied data etc Remarks 7 Release valve control 1 SV2 gas balance control This control is executed to balance the gas by opening SV2 while the compressor is off in order to decrease the activation load in the next compressor ON time This control is individually executed by the master outdoor unit and each slave outdoor unit 1 Control conditions When the compressor is switched from ON to OFF operation 2 Contents of control The control point is exchanged by AP Pd pressure Ps pressure immediately before the compressor stops e When APz PI SV2 is opened After SV2 has been opened SV2 is turned off when AP P2 e When AP lt P1 SV2 is closed Table 7a kgf cm G Cooling Pd pressure control point PL P2 Master outdoor compressor OFF Master outdoor compressor ON Pl P2 Pl P2 In case of master 13 11 In case of slave 13 11 5 4 2 SV2 low pressure release control This control is to prevent pressure drop during transient operation This control is individually executed by the master outdoor unit and each slave outdoor unit This control is ex
120. ncy 5 minutes after the 4 way valves are switched on The controller controls the heating fans thereafter 2 For the master outdoor units The inverter ODU is operated at the minimum frequency If the compressors are off they will be activated and if they are already on they will be held constant If a slave outdoor unit is connected a signal to end the defrost operation will be sent The control then switches on the 4 way valves and completes sending the defrost signal to the indoor units When the outdoor units are combined the defrost operation is compulsorily completed for at least 2 minutes If the conditions are satisfied all the outdoor units should finish defrost mode simultaneously TOSHIBA Outline of Control Outdoor Units Item Operation explanation and applied data etc Remarks 12 Defrost 3 For the slave outdoor units control The compressors 1 and 2 are kept on Should reverse they be off they will be switched on defrost After the signal to finish the defrost operation method is received from the master outdoor units the 4 way valves become switched on The capacity of the compressors is controlled according to the on off signals from the master outdoor units thereon 5 SV41 42 low pressure release control This prevents the low pressure level relaxing during the defrost control operation The master outdoor units and slave outdoor units have their own control over this
121. ndoor address number is set by selecting SW02 or SW03 SW03 SW02 Outdoor unit number 7 segment display A 1 1to 16 SW02 setup number 01 to 16 2 1to 16 SW02 setup number 16 17 to 32 3 1to 16 SW02 setup number 32 33 to 48 7 segment display A B Display A Display B Li il i Pi 1 Fux D716 D717 D714 D715 TOSHIBA Control Circuit Configuration 1 LED display on indoor PC board MCC 1361 01 General type Part No Colour Displayed content Details D13 Orange Serial receive Flashes synchronized with the receive signal to the standard remote controller D11 Green Serial send Flashes synchronized with the send signal from the standard remote controller D22 Red Alarm stop display Goes on when the indoor unit stops with fault D51 Yellow Cycle communication Flashes synchronized with receive signal from the outdoor unit Indoor PC board parts layout D13 O D22 Red D11 Green 1361 01 PCB identification code MCC 1361 01 D51 Yellow TOSHIBA Control Circuit Configuration BH Indoor Units 2 Display on remote controller In the following conditions STAN DBY is displayed on the remote controller 1 STAN DBY display Fan operation is available but PMV of the indoor unit is not permissible Refrigerant does not flow a Indoor unit o
122. nit setup No 1 Yes A Yes Is SWO1 duplicated No Y No Is the unit setup No 1 gt Yes lt I No d Does the indoor unit operate gt 5 Does serial LED Yes Green D11 on the indoor PC board flash Check indoor PC board If defective replace Does serial LED Yes O range D13 on the indoor PC board flash No Check remote controller PC board If defective replace TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 9A Miswiring Misconnection of indoor 3 Blockage in pipe run 1 Miswiring Mispiping of indoor outdoor units 2 Insufficient refrigerant Was the outdoor unit stopped for 20 minutes or more before checking miswiring Yes Stop the outdoor unit for 20 minutes or more and then check miswiring again Y Did you check No miswiring according to the temp conditions Table 1 Yes Y No Are there any other check codes 5 Yes Y Investigate the check code Remove the cause and check miswiring again N Is 9A displayed again gt gt Wiring is correct Check miswiring according to conditions in Table 1 Insufficient refrigerant miswiring or blockage Table 1 Cooling miswiring Indoor 18 to 32 C Outdoor 15 to 43
123. odes can be retrieved by referring to page 49 TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 04 Inverter communication alarm Connection error of communication cable between inverter and interface PC boards Defective interface PC board Defective inverter PC board Noise from outside High level refrigerant leak if RBC RD2 PE fitted N x ain a Is communication connector No Check connection between inverter and interface PC boards connected Yes Yes Yes On inverter PC board CN07 On interface PC board CN 600 Is there continuity of the communication cable e Replace communication cable between inverter and SET interface PC boards Is there voltage present between pins 4 and 5 of CN600 on interface PC boards Interface PC board is defective Measurement by tester DC 0 to 5V 5 pin GND Is there voltage present between pins 3 and 5 of No CN600 on interface PC boards Measurement by tester DC 0 to 5V 5 pin GND Check noise interference from outside etc Y Is refrigerant detector No gt Inverter PC board is defective Complete checks detailed above RBC RD2 PE fitted to unit gt Yes Y Are the High Level Alarm and No the shutdown LEDs Red on Ref
124. ollowing works are common specifications 1 Set DIP SW06 Bit 1 and Bit 2 on the interface PC board to ON 2 If refrigerant leakage occurred on PMVB close the service valve of the liquid pipe fully Fully close by turning clockwise 3 Turn on source power of each outdoor unit If the fault is a compressor insulation error etc disconnect the lead wire of the compressor previously before work 4 Emergency process is complete The operation then starts by a command from the indoor unit TOSHIBA Forced Function of Oil Level Detection Outdoor Unit The oil level detection control can be forcibly implemented by a switch on the interface PC board of the outdoor unit When an error in the oil tank circuit occurs and there is no cause such as sensor error connection error sensor location error valve close operation error etc perform the following checks Oil tank circuit system error Check code Check code name Judgment 47 Low oil level detection Oil level shortage status has been detected continuously for approx protection 2 hours while oil equalising control was continuously implemented d8 TK1 temp detection Temp change at the oil tank primary side was not detected while oil level circuit alarm detection control was implemented 49 TK2 temp detection Temp change at the oil tank secondary side was not detected while oil level circuit alarm detection control was implemented db Oil level detect
125. on PC board error Connection error of connector for outdoor communication interface board error Is the connection No of CN 101 on the indoor PC board normal lt Did a power failure occur Aes Is there a miswiring or Yes disconnection of PQ communication cable Check communication cable Yes Is the connection of Check wiring of wire connector CN601 on the outdoor interface PC board normal outdoor unit turned on Is the power supply of the gt No Turn on source power of outdoor unit No Clear the check code gt No gt gt Yes gt Is there noise interference etc p Check indoor PC board If defective replace Check noise interference etc and remove it NOTE 1 When first turning on the power supply of the indoor unit and when pushing the START STO P button before turning on the power supply of the outdoor unit 95 may be displayed This is not abnormal therefore clear the check code 2 If 95 is displayed only on the 7 segment of the outdoor unit it is considered that power supply of the master outdoor unit is not switched on or a PC board error of the master outdoor unit has occurred TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Ope
126. oor Outdoor communication error Pd sensor error Does the inverter No high pressure switch operate 5 Is the inverter high pressure No switch normal Yes Check parts If defective replace No Is service valve fully open O pen service valve fully Yes Y Yes Is the inverter IO L circuit normal gt See judgment flow of inverter IO L operation circuit E5 No Is circuit wiring normal Yes Check and modify wiring Does the outdoor fan operate Yes apacitor and fan motor normal lt Are the connections for No C Yes Repair defective part Is there a problem with the outdoor unit heat exchanger Yes Blockage of heat exchanger Short circuit No Remove cause No Is SV2 bypass circuit normal Yes Repair SV2 bypass circuit Coil error disconnection of wiring etc Y Refrigerant over charge Blockage Pipe breakage Abnormal overload Is the high pressure sensor characteristics normal Replace high pressure sensor Y Check outdoor inverter PC board If defective replace board TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause Pd sensor error Service valve closed Outdoor fan capac
127. ortant document for servicing or maintenance in the future Check before trial operation Prior to the trial operation confirm whether there is a fault with the installation work using Check list 1 CHECK LIST 1 Is the capacity of field fuse adequate Outdoor unit A Indoor unit A Is the dia of power source cable correct Outdoor unit mm Indoor unit mm Is the control transmission line correct Indoor O utdoor connecting terminal PQ Type Shield wire Cable dia mm Is the power of indoor units collectively supplied Is the earth grounded Is the insulation good 10M Q or more MQ or more Is the voltage good Within 380 400 415Vx 1096 V for outdoor unit Is the connecting cable dia correct Is the branching kit correct Is the drain water flow sufficient Indoor unit Is the heat insulation of cables good Connecting cables branching kits Is there no short circuit of discharge air of indoor outdoor units Are vacuuming and addition of refrigerant performed after airtight test of cables Are the valves fully opened Gas side Liquid side Balance side Check additional amount of refrigerant CHECK LIST 2 Calculate the additional amount of refrigerant from the pipe dia at liquid side and length of pipe to be connected Write the total length of the liquid side pipes for each dia in
128. p of the slave N Yes z Clear the alarm and the operation outdoor unit being completed E starts 1 Is the power supply of the slave No lt outdoor unit turned on Turi on ho power Supply Yes Is communication I cable connected correctly Ng gt Check sn n between the outdoor units communication cable Is the BUS communication Check the connection of the connector connector CN 601 of the outdoor us 1 unit at the server connected BUS communication connector CN 601 Yes 1 How to clear the alarm C Check interface PC board D Set SW01 SW02 SW03 on interface PC board of the master outdoor unit to 2 16 1 respectively and push SW04 for 5 seconds Display on the 7 segment display Er CL Check code Operation cause 8E 1 No of connected outdoor units over limit Outdoor unit connection 2 Connection error of communication cable over limit between outdoor units Isthe No of connected No outdoor units 5 or below tl Is the communication No The maximum number of outdoor units is 5 Check connection of cable connected between outdoor units d s C Check interface PC board communication cable TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Address setup of outdoor unit was duplicated Duplicated terminal outdoor 2 Interface PC board error addresses
129. peration by one compressor is unavailable In this instance refer to the Emergency Operation when an outdoor unit has failed section NOTE 2 For the emergency operation when the failed compressor is an inverter the capacity control is performed by ON OFF control of fixed speed compressor NOTE 3 When motor winding of the compressor fails Short etc do not set backup of the compressor because deterioration of oil will occur Another error in the outdoor unit may be caused Work procedure 1 First turn off the source power of all the outdoor units which are connected to the system 2 The following works are performed to the outdoor unit of which the compressor failed According to the following table set DIP switch SW06 on the interface PC board Table Switch setup in compressor backup SWO6 Bitl Bit2 Bit3 Bit4 Initial setup at shipment from factory OFF OFF OFF OFF No 1 compressor IN V Front left compressor has failed ON OFF OFF OFF No 2 compressor FIX Front right compressor has failed OFF ON OFF OFF 3 Backup setup is now complete Turn on the source power of all the outdoor units When an Outdoor Unit has Failed In this air conditioner backup operation is permissible to both an inverter unit and a fixed speed unit when an outdoor unit has failed In a system in which two or more outdoor units are connected perform the emergency operation for
130. piougjos 8 asing 06 Ib er Jo jadoud T yun 400pul 1e jedoud Combined Refrigerant P 5 a SoS SSS ta epis 100pjno Je6ueuxe 3eau S d i i 40su s nS Julens uquy l A 105 5 la i E Ta v AWd FE Joopino je jeDueupxo jeou any 405 5 auo L i p s tof H jap se 5 Tu o I E 100W i 700700673 i paads paxi4 z u u Aul T PUN XHO8ZOV WIN LHO8ZOV WW TOSHIBA eunsseud o1 6uneuiodeaA3 penoQ Juey pinbi pesseJduuoo 10 seb eunssaid ubiH pos de PE Dupuejeq i sowas SALA 0 peped eps adid peeds paexi4 NLJS PInbi t XHOSZOV INIA apes PA IIO i Gps eps edid G Peped p p ed pisse6 pinbi apis pinbi Bupuejeq NEA anjen
131. protective control 1 The compressor stops when on IPDU control PC board detects over current 2 When the compressor stops 1 is counted to the error count and the compressor reactivates after 2 minutes 30 seconds After reactivation the error count is cleared if the operation continues for 10 minutes or more 4 High pressure SW control 1 The compressor driver stops when the inverter compressor high pressure SW operates 2 When the compressor driver stops 1 is counted to the error count and the compressor driver reactivates after 2 minutes 30 seconds After reactivation the error count is cleared if the operation continues for 10 minutes or more TOSHIBA Outline of Control Outdoor Units Item Operation explanation and applied data etc Remarks 12 Defrost 1 Conditions for starting the defrost operation f the conditions are control 1 Calculate the operation time when the TE sensor satisfied all the reverse detects below 1 C during heat mode When the outdoor units should defrost compressor is activated start defrost after start defrost mode method 25 minutes for the first time and after simultaneously 55 minutes for the second time and thereafter 2 How the controlling system works 1 For the master outdoor units The control operates the inverters at the minimum frequency When the inverter ODU frequency is set minimum a defrosting signal is sent to the slave outdoor uni
132. r STF 200 140 4F Output rated 140W 4 pole 200V 1 Phase 50Hz 2 Running Capacitor fan motor EAG40M106UF AC 400V 10uF 3 Pulse Motor Valve EDM B60YPTF 7B A Capacity 60 Built In Duct MM B112 No PARTS NAME TYPE SPECFICATIONS 1 Fan Motor STF 200 120 4B Output rated 120W 4 pole 200V 1 Phase 50Hz 2 Running Capacitor fan motor EAG40M505UF AC 400V 5pF 3 Pulse Motor Valve EDM B40YPTR 7B A Capacity 40 Built In Duct MM B080 No PARTS NAME TYPE SPECFICATIONS 1 Fan Motor STF 200 100 4B Output rated 100W 4 pole 200V 1 Phase 50Hz 2 Running Capacitor fan motor EAG40M505UF AC 400V 5uF 3 Pulse Motor Valve EDM B40YPTR 7B A Capacity 40 Built In Duct MM B056 No PARTS NAME TYPE SPECFICATIONS 1 Fan Motor STF 230 60 4A Output rated 60W 4 pole 230V 1 Phase 50Hz 2 Running Capacitor fan motor EEP2G405HQA114 400V 4uF 3 Pulse Motor Valve EDM B40YPTR 7B A Capacity 40 Built In Duct MM B140 MM B112 MM B080 MM B056 No PARTS NAME TYPE SPECFICATIONS 4 Transformer 03 1 DC 16 3V 0 5A AC 11 6V 0 15A 5 Pulse Motor EDM MD12TF 3 DC12V 6 Pressure Sensor 150 100NH6 D Power Voltage DC 12V 7 S f t t TA Maximum input ensor for room temperature 38mA at 25 Maximum input 8 Sensor for heat exchanger Tcl 34mA at 25 C Maximum input 0 25 50 9 Sensor for heat exchanger 2 26mA at 25 134 61 10 3 4 10 Control PCB 00 02 220 240V 11 POORCO1 AC 220 240V Built In Slim Duct MM SBO28
133. r the compressor status changed from OFF to ON ON status continues for 10 minutes TOSHIBA Outline of Control Outdoor Units Item Operation explanation and applied data etc Remarks 11 IPDU Inverter control IPDU controls the inverter compressor by command frequency frequency up down speed and current release control value from the interface PC board The main controls of IPDU control PC board are described below 1 Current release control The output frequency is controlled by AC input current value which is detected by T02 on the control PC board to prevent the inverter input current dropping lower than the specified value Current value 22A li 21 5A l2 A zone The normal operation is executed D zone The present operation frequency is kept Bzone The operation frequency is decreased C zone Decrease of the operation frequency stopped and the present operation frequency is kept 2 Heat sink temp detection control 1 The heat sink temp is detected by the thermistor in the compressor driving module Q200 and the inverter compressor driver stops when 120 C is detected 2 When the inverter compressor driver stops 1 is counted to the error count If the error count reaches 3 the system generates a fault code and system operation stops NOTE When the error has been determined the ambient outdoor temp or an outdoor fan error is considered 3 Over current
134. rates as prevention described below based upon temp detected by TC1 control Low and TC2 sensors temp release When 4 zone is detected for 2 minutes the command frequency becomes SO to the outdoor unit n K zone the timer count is interrupted and held e When I zone is detected the timer is cleared and the operation returns to normal operation When the command frequency becomes SO with continuation 0 4 zone operation of the indoor fan in LOW mode occurs until it reaches the I zone It is reset when the following conditions are satisfied 1 1 gt 10 and TC2 210 C 2 30 minutes after the air conditioner has stopped TC1 TC2 P 5 12 Q 4 15 8 Cooling When the indoor units stand by thermostat is O FF or Only for 4 way 2 way refrigerant unit operates with FAN mode PMV of the indoor unit ceiling cassette type Heating oil is opened by a certain degree when the cooling operate the indoor recovery oil heating refrigerant recovery signal is received from fan intermittently control the outdoor unit during the recovery operation 9 Short 1 For 5 minutes after the operation has started the intermittent operation is continued even if entering thermostat operation OFF condition 2 However if the thermostat has been turned off by changing the setup temp the thermostat is OFF with even the above condition The protective control has priority 10 Drain pump 1 During COOL operation
135. ration cause 1 Connection error of communication cable 96 between indoor and outdoor units Consistency detection of indoor 2 Abnormal No of connected indoor units and outdoor addresses 3 Wiring connection error of central management remote controller Is the wiring connection No to the communication cable Modify communication cable PQ normal Yes Is the communication cable Yes connected to another Modify wiring of wire connector outdoor unit incorrectly No Is the No of indoor units to the outdoor unit normal ae Yes Is the communication cable No connected to the central m anagement remote controller Yes Check interface PC board of outdoor unit If defective replace TOSHIBA Troubles hoot ing H Diagnostic Procedure for Check Code Check code Operation cause 1 Connection error of communication cable PQ between indoor and outdoor units 2 Connection error of XY for outdoor units 97 3 Power source system error of the central controller BUS communication alarm 1 and indoor unit 4 Noise of peripheral devices Power failure Indoor PC board error central controller error Are X Y and PQ eer communication cables normal gt cneckcommunicanon coU Is connection of CN 101 on the indoor PC board no
136. ressor is operating Is the wiring of compressor normal No Check the interface board C Modify wiring D Check compressor TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Outdoor unit service valve closed 2 Cooling bypass PMV error AE 3 TD1 sensor error TD1 condition gas leak detection 4 Insufficient refrigerant blockage in pipe 5 Blockage of indoor filter 6 Blockage of PMV assembly on the liquid line Are the gas pipe and liquid N No pipe service valves of the x O pen valves fully outdoor unit fully open Yes Is there a blockage Yes in the PMV assembly on z Replace both the PMVs the liquid line No Is the cooling bypass No lt PMV B normal gt Cooling bypass PMV B error Yes Are the resistance characteristics No E of TD1 sensor normal E gt Replace TD1 sensor Yes y No lt Is the wiring correct Set normal wiring Yes Check miswiring of the outdoor unit according to miswiring check function Y Insufficient refrigerant blockage pipe breakage Check code Operation cause AF Phase order alarm Abnormal power phase order or missing phase of power supply to the outdoor unit There is an abnormal power phase order or missing phase of power supply to the outdoor unit Che
137. rge hose etc connect the check joint of gas pipe D and the charge port of balancing pipe 8 Start a trial operation under condition that AC220V 240V power is and to SV3B valve is connected 9 After operation for several minutes check temperature at secondary side of SV3B valve C When temperature is low equivalent to suction temp blockage occurs in SV3B valve or strainer Replace blocked part 2 Blockage check procedure for oil return circuit of oil separator 1 Check temperature of oil circuit during operation of outdoor unit gt If temperature is low clogging occurs in capillary or strainer Replace blocked part d8 TK1 sensor out of place miswiring resistance TK1 temperature detection value characteristics error circuit alarm Yes C Is TK1 sensor out of place J gt Modify sensor mounting y Modify miswiring Is there miswiring of Yes S TK1 sensor CN516 TK1 TK2 TK3 sensor TK2 sensor CN515 TK3 sensor CN507 Is resistance value Yes characteristics of TK1 sensor gt Sensor error normal No Check interface PC board D TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 TK2 sensor out of place miswiring resistance d9 value characteristics error TK2 temperature detection 2 Oil tank peripheral circuit error circuit alarm Check valve leakage Capillary b
138. rigerant leak Leak check unit gt Complete checks detailed above TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Float switch disconnection 2 Drain pump operation error 3 Drain hose blockage 0b Indoor water overflow alarm N No Check connection of connector CN 11 a Is drain pump connected E gt Drain pump Indoor main PC board MCC 1361 01 Does float switch operate gt lt Is circuit wiring normal 1 rem Check circu Indoor PC board error 1 For confirmation check voltage under MCC 1361 01 condition that connector is connected to CN 11 amp Does drainage water collect No gt Float switch error Yes Y N lt Does drain pump operate gt lt nd Check and modify wiring circuit Yes Yes 2 Check whether voltage of 08 pins 1 to 3 of the indoor main PC board is Y 230V or not MCC1361 01 Check for blockage of Drain pump error drainage hose Check code Operation cause OC Indoor TA sensor alarm TA sensor open short TA sensor open short has been detected Check disconnection of connector connection TA sensor CN 04 circuit and resistance value characteristics of sensor When the sensors are normal replace indoor PC board MCC
139. rmal When indoor PQ communicatio cable is connected Check connector connection 8 15 uM of CN 602 on interface PC board of the master outdoor unit normal Check connector connection Is there ni error Yes gt Check power source wiring heck power source wiring of power source wiring Check po g Is the source power Clear the alarm after turning of either central controller o onthe power source and o indoor outdoor turned on start the operation Pug 9 2 Yes Did power failure occur Is the operation status No 5 Eum f of the indoor unit reflected on Indoor PC board error on tne centra controler the central controller n Is there noise interference etc gt y Is the network address m Yes mas different from main or sub s there noise interference etc Eliminate noise interference remote controller Clear the alarm after turning Central controller error on the power source and start the operation TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Miswiring of XY communication cables 2 Duplicated network addresses 3 Indoor PC board error central controller error 98 BUS communication alarm 2
140. rocedure for Check Code Check code Operation cause 1 Outdoor unit service valve closed 2 Cooling bypass PMV error 3 TD sensor error 4 Insufficient refrigerant blockage in pipe 5 Blockage of PMV assembly on the liquid line bb Discharge temperature TD2 alarm Are the gas pipe and liquid N No pipe service valves of the e gt O pen valves fully outdoor unit fully open Yes Is there a blockage Yes in the PMV assembly on y Replace both the PMVs the liquid line No PMV B normal lt Is the cooling bypass gt RD gt Cooling bypass PMV B error Yes m replace T02 sensor Yes Y No lt Is the wiring correct gt gt Set normal wiring Yes Check miswiring of the outdoor unit according to miswiring check function E C Insufficient cr blockage pipe breakage TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Mg SW contact deposit protective operation bd 2 TD sensor error Mg SW protective operation 3 Pd sensor Ps sensor error 4 Insufficient refrigerant blockage in pipe Yes Turn off the power supply Is the Mg SW contact faulty J and replace Mg SW No Are the resistance value No characteristics z Sensor error of TD sensor normal Yes
141. rrect setup of indoor unit HP 89 Indoor over capadty Indoor unit over capacity was C Is the system backup of the No detected during outdoor unit system outdoor unit being completed setup Setup no detection of over Mos capacity 1 Is the No of connected indoor units acceptable 2 Confirm system specification Yes Is the HP setting correct for each N No lt individual indoor unit cae HP seting Yes Is the total capacity of connected No d Keep capacity of connected indoor indoor units within 13596 units within 135 C Check inverter PC board 1 Setup no detection of over capacity Turn on SW09 bit 2 on interface PC board of outdoor unit usually OFF 2 Check No of connected indoor units Set SW01 SW02 5SW03 on interface PC board of outdoor unit to 1 4 3 respectively No of connected units is displayed on the 7 segment display TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Outdoor unit system setup 8d 2 Outdoor unit power source Reduction in the No of 3 Connection error of communication cable between connected outdoor units outdoor units 4 Connection error of BUS communication 5 Interface PC board error Is the system setu
142. rvice valve closed A7 2 Blockage PMV assembly on the liquid line TS condition gas leak detection 3 TS sensor error 4 Insufficient refrigerant blockage in pipe Are the gas pipe and liquid N No pipe service valves of the gt Open valves fully outdoor unit fully open Yes Is there a blockage Yes in the PMV assembly on the gt Replace both the PMVs liquid line No Y Are the resistance characteristics No of TS sensor normal gt Replace TS sensor Yes Y Insufficient refrigerant blockage pipe breakage Check code Operation cause AA Pd sensor alarm Pd sensor output voltage alarm Pd sensor CN501 and output voltage of the sensor If the sensor is normal replace the outdoor interface PC board TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause 1 Connector misconnection of Pd Ps sensors 2 Pd Ps sensor error 3 Compressor inverse operation compressor error Ab Pressure sensor misconnection Is the pipe connection No Check connection position of Pd sensor Ps Pd sensor CN501 sensor correct Ps sensor CN 500 Yes Are the output voltage No characteristics of Pd sensor Ps gt Sensor error sensor normal Yes Are the pressure characteristics normal when comp
143. tection circuit SV3C valve was judged as blockage If this judgment continues the system A3 stops for protection When db occurred check according to the check items A4 TK2 temp detection was judged as an error If this judgment continues the system stops for protection When d9 occurred check according to the check items Peripheral drcuits of oil tank Check joint SV3C valve i hc cur strainer Oil Capillary separator 2 7 Strainer NNN Capillarye 7 Compressor oil SV3A valve removal za valve Valve Y Check valve Lwm lt gt Strainer Accumulator Check joint o SV3B valve Strainer x Balancing pipe valve TOSHIBA Refrigerant Pipe Installation Leak Test 1 Leak test pressure For Multi Modular System air conditioner systems 3 0MPa 30kg cm G 2 Test method Supply oxygen free nitrogen FN gas to the system as described The gas side liquid side and balance valves must all be fully closed Note that there is a possibility that the nitrogen gas could become mixed into the outdoor unit cycle Therefore re tighten the valves gas side liquid side and balance before applying pressure CAUTION N ever use oxygen a flammable gas or a toxic gas for leak tests Apply pressure gradually in the prescribed steps for the gas liquid and the balanc
144. the TIME section of the display Display If the air filter cleaning sign is displayed the number of indoor units with a filter problem is indicated followed by the check code LCD Display Standby Mode When combination When indoor unit with command excepted by operation mode select switch When phase sequence of power wiring is incorrect of indoor units is over the capacity TOSHIBA PREHEAT HEAT DEFROST AUTO FILTER UNIT MANUAL ADDRESS Check Switch Push for 0 5 seconds to display CHECK code Push for 3 seconds to reset indoor microprocessor While indoor microprocessor is locked by ALL STOP alarm Push for 10 seconds to clear check data Reset Switch Push the switch inside the hole with pin The remote controller resets initialised All data is cleared TOSHIBA Troubles hoot ing H Remote Controller Check Display 7 Segment Display Hexadecimal notation 11 12 13 14 15 Decimal notation Filter Data Example A Filter signal is sent from No 1 and No 15 units under grouping operation FILTER FILTER Check Data Unit No Check code detected at first Check code detected at last Example Room Temp sensor of No 1 is defective Example There is no check In No 15 first the Heat Exchanger sensor has data failed Next the
145. to miswiring check function Y Insufficient refrigerant blockage pipe breakage TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause d1 Master outdoor unit setup alarm 1 No of connected inverter outdoor units 2 Incorrect setup of master outdoor unit 3 Defective outdoor interface PC board Are there multiple inverter w Yes outdoor units connected J No Is setup of the master outdoor units at center position duplicated Yes Set only one inverter outdoor unit per system Set only one unit as master Set SWO8 bit 2 on interface PC board of each unit 1 No Check interface PC board turn off all source power and then restart the operation 1 Setup of outdoor unit at center position SW08 bit 2 setup on outdoor interface PC board OFF Server ON Master Automatic setup for inverter outdoor unit TOSHIBA Troubles hoot ing Diagnostic Procedure for Check Code Check code Operation cause d2 Server outdoor alarm Defective slave outdoor unit An error occurs in the slave outdoor unit Confirm the check code of the slave unit and check it according to the diagnostic procedure for each check code Check code d3 TH sensor alarm Operation cause Error of temp sensor incorporated in IGBT In
146. ts The 4 way valves and the outdoor fans go off one after another The maximum frequency of the inverter ODU is 90Hz 2 For the slave outdoor units When the conditions for the defrost operation are all satisfied a defrost signal is sent to the master outdoor units Once the signal is received the 4 way valves go off and then the outdoor fan goes off While the defrost control is in progress the compressors are all switched on 3 Conditions for finishing the defrost operation 1 Common condition O nce a certain period of time passed after the 4 way valves were off the control finishes the defrost operation according to the TE sensor detected temperature and the Pd pressure Defrost will be compulsorily ceased 10 minutes after it was activated 2 For the master outdoor units Once the above common condition is satisfied and the slave outdoor units have finished sending the defrost signal the whole defrost operation is complete 3 Slave outdoor units When the condition for completing the defrost operation is satisfied they finish sending the defrost signal to the master outdoor units When the condition for completing the defrost operation is satisfied and they finish receiving the signal to stop defrost from the master outdoor units the defrost operation is complete 4 Control of completion of the defrost operation 1 For the master outdoor units The control sets the outdoor fans with the maximum freque
147. unction is only to send the mode signals such as stop operation mode etc from outdoor unit to indoor unit TOSHIBA Trial Operation Service Support Function 1 Trial cooling operation function This function is to change the modes of all the indoor units connected to an identical system collectively to trial cooling operation modes using the switch on interface PC board of the inverter type outdoor unit Operation procedure Power ON 8 ooo Swo3 swo2 5 01 oo Set SWO1 on the interface PC board of the inverter outdoor unit to 2 SW02 to 5 and SWO3 to 1 de SWO01 02 03 Rotary switch SW04 05 Push switch SW08 Dip switch Push the push switch SW04 on the PC board of the inverter outdoor unit for 2 seconds or more gt Operation rm Check that mode on the remote controller of the indoor unit to be operated is trial cooling operation mode L is displayed Check that C is displayed on the 7 segment LED B of the interface board of the inverter outdoor unit gt Operation check EN Return SWO1 to 1 SWO02 to 1 and SW03 to 1 on the interface PC board of the inverter outdoor unit gt Stop Completion TOSHIBA Trial Operation Service Support Function 2 Collective start stop ON OFF function This function is to start stop ON OF
148. unit to 1 n Completion TOSHIBA Trial Operation Service Support Function 3 Individual start stop ON OFF function This function is to start stop ON OFF the indoor units connected to an identical system individually using the switch on interface PC board of the inverter outdoor unit Set SW01 to 16 SW02 and SWO3 to the indoor unit to be operated See the following table The set indoor units to operate alone In the indoor units where group operation of remote controller is present the indoor unit of which the rotary switch is set to 2 to 16 cannot start stop individually is displayed on the 7 segment LED B of the control PC board of the inverter outdoor unit Operation procedure q Power ON When an alarm has been already displayed with setting of SW01 to 1 SW02 to 1 and SW 03 to 1 return the status to normal see Troubleshooting and then perform the Trial O peration Set the operation mode on the remote controller If not setting the operation continues under the present mode FAN COOL HEAT The Trial Operation is not performed for gt indoor units with group operation on the remote controller Match display select switch on interface board of the inverter outdoor unit with in the following table Fm Em LN OOO SWo3 swo2 Swot umm
149. ver capacity When the total HP of the connected indoor units exceeds 1 35 times of outdoor HP the indoor unit will display STAN DBY mode The check code 89 is displayed at the same time when STANDBY is displayed b Outdoor unit phase order error If phase order of power source of the outdoor unit is different the indoor unit will display STAN DBY mode The check code AF is displayed at the same time as STANDBY c Indoor operation below 0 8HP control When the total capacity of the operating indoor units is below 0 8HP the relevant indoor unit displays STAN DBY mode A check code is not displayed Incorrect setup of indoor HP is confirmed Recheck setup of SWOS 3 Indoor PMV full open full dose function PMV used in the indoor unit can be forcibly opened fully closed fully and opened in medium degree for 2 minutes CN33 CN32 PMV Opening O pen O pen Normal operation O pen Short Fully open Short O pen Fully closed Short Short Medium opening Half open No 2 OFF Normal SWO08 Indoor HP Factory set TOSHIBA Control Circuit Configuration H Indoor Units 4 Switch positions at shipment from the factory SW No Function Description Position at shipment from factory SW01 Indoor unit No Group operation control setup setup1 Master unit 2 to 16 Slave units SW02 Network on Address setup by r
150. verter Gate Bi Polar Transistor There is an error with the temp sensor incorporated in IGBT Check connectors CN07 on IPDU PC board and CN600 on interface PC board If there is no problem replace IPDU PC board Check code Operation cause d4 TK1 sensor open short TK1 sensor alarm pen short of TK1 was detected Check connection TK1 sensor CN 516 and resistance value characteristics of the sensor If sensor is normal replace the outdoor interface PC board Check code Operation cause d5 TK2 sensor alarm TK2 sensor open short pen short of TK2 was detected Check connection TK2 sensor CN 515 and resistance value characteristics of the sensor If sensor is normal replace the outdoor interface PC board Check code Operation cause d6 TK3 sensor open short TK3 sensor alarm pen short of TK3 was detected Check connection TK3 sensor CN 507 and resistance value characteristics of the sensor If sensor is normal replace the outdoor interface PC board TOSHIBA Diagnostic Procedure for Check Code Protection of low oil level detection Check code Operation cause 1 Balancing pipe valve all outdoor units in the connecting line closed d7 Compressor case oil removal valve closed Miswiring of TK1 sensor TK2 sensor Refrigerant stagnation in compressor case SVA3 SV3B SV3C valv
151. xed speed 2 U3 3 Outdoor No 4 unit Fixed speed 3 U4 4 Outdoor No 5 unit Fixed speed 4 U5 TOSHIBA Self Diagnostic Display Information 5 Outdoor unit information data display Displayed on inverter unit only Outdoor Units SW03 SWO2 SWO1 Displayed content 1to31tol16 4 Indoor communication A 01 to 48 Indoor address number Receive status B 1 Receiving No connection 5 Indoor check code A 01 to 48 Indoor address number B No error a check code is displayed when an error occurs 6 Indoor horse power A A 01 to 48 Indoor address number B Corresponded HP is displayed No connection 0 8 11 1 21 B 5 1 71 2 2 5 31 3 2 41 5 7 Indoor demand A 01 to 48 Indoor address number command S code B 01 In STOP time 3 to F During operation 53 to SF 8 Indoor PMV opening A 01 to 48 Indoor address number B Data is displayed as pulse 9 Indoor saturation temp A 01 to 48 Indoor address number B Data is displayed as temperature 10 Indoor TA sensor A 01 to 48 Indoor address number B Data is displayed as temperature 11 Indoor TC2 sensor A 01 to 48 Indoor address number B Data is displayed as temperature 12 Indoor TC1 sensor A 01 to 48 Indoor address number B Data is displayed as temperature NOTE The i
152. xing bolt pitch Base bolt position Hi 1700 1560 Refrigerant pipe connecting port Gas side braze connection A 8 N Y Y Y 8 t Refrigerant pipe connecting port 2 60 x 150 Slot Liquid side flare connection B for transport Slot pitch Balance pipe connecting port flare connection OC Note All dimensions in mm knock out Refrigerant pipe connecting port Liquid side Balance pipe Model A B OC connecting port Fixing bolt pitch Refrigerant pipe connecting port Gas side knock out mm mm mm MM A0280HT MM A0280HX 22 2 1 12 7 9 52 MM A0224HT MM A0224HX 22 2 112 7 9 52 MM A0160HX 22 2 9 52 9 52 Details of piping connections TOSHIBA Construction Views Indoor Units Built In Duct 056 080 MM B112 MM B140 Nx 2200 I 70 Air Outlet Hanging Bolt M10 Provided at site Unit Dimension A Hanging Bolt Pitch B V m Refrigerant Pipe Connection 6 x 64 holes 2160 Fresh air inlet 125 cut out other side Refrigerant pipe connection Liquid 06 Drain pipe connection inner diameter 32 diameter 32 minimal for PVC pipes Indoor unit Filter k

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