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1. Next TOSHIBA Ci a rri er Services Diagnosis using flashing LED of the indoor unit The operation light green flashes 1 time per second This indicates that there was a power failure or the power supply is turned on Self diagnosis Case Power failure when the power supply is turning on 1Hz 1 time in 1 sec d 2T gm ICI MICCS TE I TS Le mc uuu i Home Back Next TOSHIBA Ci a rrier Services Diagnosis using flashing LED of the indoor unit When the operation light flashes 5 times per second it can be assumed that there are some problems occurring in one or all of these areas Self diagnosis Protective circuit operation for indoor P C board Case B 5Hz 5 times in 1 sec ed 2T gm ICI MICCS T Ee my ry TOSHIBA Ci a rri er Services 4 Diagnosis using flashing LED of the indoor unit If di sis Case C Self diagnosis Wrong wiring of connecting cable 5Hz 5 times in 1 sec 49 0 Home Back Next TOSHIBA Ci a rri er Services 4 Diagnosis using flashing LED of the indoor unit Lamps Self diagnosis Case D P 9 OPERATION and FILTER lamps blinking 5Hz Protective circuit operation for outdoor P C board 5Hz 5 times in 1 sec 49 0 Home Back Next2. Next TOSHIBA Carrier Outdoor Fan Control Operation Fan speed rpm of each product is classified by Tap from f 0 f F which is shown the Outdoor Fan Speed f 0 f F table Table Outdoor fan speed rpm fO fF by model RAS DSLAV UL RAS T2LAV LUL o0 i 20 12 30 ia 2 3 3f 44 2 3 4 9 40 0 00 300 370 500 d LC Note In case that fan motor lock is detected air conditioner will stop operate and indoor unit LED will blink Remark Above values are for sizes 9 and 12 K units Service manual has the values for other sizes lt gt Next TOSHIBA Carrier Operation Operation Mode Cooling Operation Indoor unit receives signal from remote control Indoor control unit controls indoor fan motor louver and calculates the compressor speed by considering room temperature and set point temperature The Indoor control unit will send operating commands to the Outdoor unit controller Operation flow chart of cooling mode operation Operation ON Setup of remote controller Ind it trol Indoor fan motor control Louver control Operation Hz UNO Control Requierment A Sending of operation command signal Compressor revolution control Outdoor fan motor control Operation Hz control Include limit control Outdooruinitcongel 4 way valve control Cooling position Pulse M
3. 5 s lt Carrier S M 3 b 20 ni iy Toshiba Carrier Products amp Service Training 44 TOSHIBA Carrier E 1 Inverter Basic 1 4 Select Training TOSHIBA Carrier Installation Installation TATUM Rum Wear Trai Pin p pe woot Will Cy iy he Home Back Next TOSHIBA Carrier Installation RAS OOLKV UL_ RAS 12LKV UL RAS 22LKV UL 10 25 32 275 12 19 32 320 31 1 8 790 41 5 16 1050 E 25 11 20 205 8 15 16 228 20 9 29 13 B RAS OSLAV UL RAS 17LAV UL 11 27 16 290 TOSHIBA Carrier Installation Product FU RAS O9LKV UL RAS 12LKV UL RAS 15LKV UL RAS 17LKV UL RAS 22LKV UL Item CDU RAS O9LAV UL RAS 12LAV UL RAS 15LAV UL RAS 17LAV UL RAS 22LAV UL Refrigerant type S S S OO Compressor DA89X1C 23FZ2 DA111A1 20F1 DA130A1F 27F DA150A1F 20F 1 without add charge ft 15 Max with add charge 20 g m Height different Between FCU amp CDU and measure in vertical direction only 33 ft 10 m Pipe direction Out from FCU Direction 1 NO _ Connecting Pipe Pipe size Liquid pipe Smaller 1 4 1 2 LELT 5 1665
4. 280 380 a 3 A To next slide Back Next PT sd t Ae re X Wu 1 TOSHIBA S Carrier Services From previous slide Does outdoor fan operate normally ES Turn OFF power 2 3 7 Overall checking for Inverter Assembly compressor and outdoor fan Diagnosis and Possible Action Remove connector of outdoor fan motor Check winding resistance by ohmmeter Check rotor locking by rotate with hand Replace outdoor Replace control fan motor board Check compressor 7 4 400 4000 40 400 winding resistance Replace compressor Check voltage of the compressor connector AC150V 270V Replace compressor 9 0 Back Next Replace control board TOSHIBA rrier Services How to check the main parts 1 Compressor Checking compressor can be done by measuring the resistance value of the winding which is the same for all 3 poles Checking procedure Measure the resistance value of each winding by using the tester Compressor Positi Resistance value Model DA111A1F 20F1 osition STS 16SACVX T Red White White Black 0 88 to 0 98 1 04 to 1 16 Q _ Black Hed Model DA89X1C 23FZ 10SACVX T 13SACVX T White Under 20 C 49 TOSHIBA x Ci a rrier Services How to check the main parts 2
5. T orny CN33 P C board Position P C board Between 3 Black 1 Red 74 15 Q 250 200 3 Between 1 Red 5 White 174 350 Between 3 Black 5 White 5 49 TOSHIBA 4 Carrier Services How to check simply main parts 4 Pulse Motor Valve Coil Checking procedure Measure the resistance value of each winding by using the tester Pulse motor valve coil Model C12A 01 R se z Grey White 43 to 49 Q 6 GR M 43 to 49 Q Red Yellow 43 to 490 Y RB 2 5 4 3 L Red Blue 43 to 490 Under 20 Q Home Back Next TOSHIBA Carrier Services How to check the main parts 5 Temperature sensors Sensor characteristic table 100 Qm ci 90 80 5 70 0 gt 60 50 40 iy r TD Y 10 5 Li 5 ae 4 TO 197 20 30 40 50 Home Discharge temp sensor Room temp sensor Heat exchanger temp sensor Outdoor temp sensor Outdoor heat exchanger temp sensor Suction temp sensor Back Disconnect the connector and measure resistance value with the tester Normal temperature Next TOSHIBA rr Ci rrier Services 9 7 2 How to shorten time of restart delay tim
6. pele Conditions Set At Factory 4 e Auto mode e Set temperature of 75 F 24 C Default louver position of mode i e Fan speed Auto or Low nc 0 12 25 Time M n Details of start up and stable condition E Q Certified Installer Program CIP 9 Next TOSHIBA gt Carrier Operation Operation Description for Hi Power Hi Power mode can be selected if unit is running in Auto Cool or Heat modes only The following takes place No change in operation Cooling operation mode Setting Temperature Set point is reduced by 2 F 1 C value does not change on remote Fan Speed Increased by one tap Heating operation mode Setting Temperature Set point is increased by 3 5 F 2 C value does not change on remote Fan Speed Increased by one tap GJ Certified Installer Program CIP Back Next TOSHIBA Carrier Operation Operation Description for ECO Operation Inverter Set point is adjusted by 0 9 F 0 5 C per hour for a total of 3 6 F 2 C in 4 hours oleum m Etape dun E ate E SO cere deh em on Oa EH 3 AHH 2 0 Next TOSHIBA Carrier Operation Operation Description for ECO Operation Inverter ECO
7. sound is heard if keeping pushed for 10 seconds Gas Leak The operation enters temporary operation mode which fixes opening degree of compressor speed Check condensation at outlet of PMV and then check operating pressure from the service port Over Charge refrigerant Existence of condensation at outlet of YES If there is condensation at outlet 1 4 inch 6 35mm valve side Heplace valve the valve is clogged Recharge 3 refrigerant Back Next Check the operating pressure from service port and add gas if pressure 1 low or pressure is over TOSHIBA Carrier Diagnosis and Possible Action Services Check Power Supply Rate 109 Turn OFF power supply 2 3 7 Overall checking for Inverter Assembly compressor and outdoor fan Discharging position Discharging period 10 seconds or more Remove connector of compressor Check 25A fuse FOL Plug of soldering iron CAUTION To Discharge Check component parts of control board assembly by visual damage burn Etc Replace fuse gt 4 capacitor before e checking fuse Replace contral board Turri power Supply Check terminal Voltage af electrolytic Capacitor DC280v 380v Turn ON the unit by remote controller ddl TEA 3 Replace contral board and wait for 3
8. b M k m TOSHIBA Carrier User Training Case 5 Introduction Installation Operation Services amp FAQ Next TOSHIBA Carrier User Training _ ls How to use the Remote control ae mpi THa in m t i pam TEE B 131 iig St jim zi fugis ume ti mum EIE How to set reset basic functions Basic maintenance for users in order to maintain optimum performance Option can be chosen by trainer Fieri FN L Pad Ta Tel pm T atia ee z F A r ry E A FI p Ls GGG G UC 7 A pti _ JI Gam 1 M im O 49 Home Back Next TOSHIBA Carrier User Training _ One Touch Preset a Store your desired settings and activate them Temperature control at the touch of a button P E Fan Speed Peelers My Choose of five fan speeds manually or select mmm oshiba C
9. Does fan motor connector X between CN10 T 2 short circuit YES Microcomputer b is defective Replace C board Replace fan motor Is the normal voltage provided to the outdoor unit 1 2 15 OPERATION indicator flashing 3 4 Is the fuse F01 blown NO i 4 Remote controller is defective Next TOSHIBA Ci a rri er Services Turn off power supply once and turn it again Diagnosis and _ Possible Action Start to operate indoor unit in cooling operation at airflow 2 3 2 Indoor fan does not level LOW operate Eum ye RAS 09LKV UL AC fan motor Dose AC120V or ligher voltage apply to between red and black lead of the motor NO Replace main P C board YES avs d e Turn OFF the power Is it possible to NO Replace rotate cross flow fan by bearing hand properly YES Turn OFF the power Is it possible to NO change airflow level Stop the operation to HIGH YES When rotating the cross flow fan by hand at the operation stopNO condition is the rotation signal DC 12V OV detected between 25 Purple lead and 3 Blue lead of the motor connector CN33 1 pulse 1 revolutio YES Motor circuit D301 IC31 Q301 F t ue 12V power circuit 1101 failure Replace the P C board NO Replace
10. ca Outdoor heat exchanger temperature Home Back Next TOSHIBA Carrier Operation Description Control Only in heating operation How defrosting operation stop The Outdoor unit controller measures the temperature of the outdoor heat exchanger and terminates the defrost operation when The outdoor heat exchanger temperature TE is 2 41 F 5 C but lt than 46 F 8 C for 80 second Case D TE is 2 than 46 F 8 C Case E Outdoor Heat Exchanger Temperature The defrost operation lasted for 15 minute The control unit will stop the defrost operation and restart 15min Time the heating operation automatically Case F Q 49 Home Back Next TOSHIBA Carrier Operation Description Control Only in heating operation Operation of the component parts When the outdoor unit controller starts defrosting compress or and outdoor fan will stop for 20 seconds to prepare the reverse Parts Operation Diagram of the defrosting operation cycle 10 second after the compressor is riesce m de energized the 4 way valve changes from heating position to cooling position and compressor am Ie eee Indoor fan is controlled by cold draft prevention control Outdoor fani ere After the compressor restarts the heat from the ON 5954 outdoor heat exchanger is used to melt the frost The indoor fan will be off
11. 1 d PRESSURE SW nae fot tie SUPPLY To FCU Jperavon EL ee 49 Next TOSHIBA Carrier Operation Witrin g Dia gram FCU L Indoor Terminal Block 375 C E RAS 12LKV UL pp c RAS 15LKV UL I d RAS 17LKV UL RAS 22LKV UL e S D BLK 1 99 15 5 T3 15A 250VAC Fuse 01 50229 260555 E Color indication ig 3 BRW BROWN gt YEL YELLOW So BLK BLAC o O RED RED 1 2 nm BLU BLUE PE WHEWHITE ipit GRN amp YEL FHE GREEN amp YELLOW CN10 CN21 MEN CE WHI Wl introduction Installation User Traininc gt Services AA FAQ cy 9 0 Back Next TOSHIBA Carrier Operation Lid LE et mn nn mt d NE bh n id RAS O9LKV UL AFN 220 20 4D AC240V 20W skis LIE Fan Motor 340030 2 DC340V 30W imis TIME MP24Z3T DC12V 1W 16P Sensors TA TC Ale 250 CDU No X Modes Specification _ RAS O9LAV UL DA89X1C 23FZ2 3 Phases 750W RAS 12LAV UL DA111A1F 20F1 3 Phases 4P 750W Compressor RAS 15 17LAV UL DA130A1F 27F 3 Phases 1100W RAS 22LAV UL DA150A1F 20F 3 Phases 4P 1100W ICF 340UA40
12. When the room temperature is lt 2 F than the a set point the compressor shuts off 1 7 SUL W3 Indoor unit fan control works in AUTO speed s only Fan speed control operation follow the Dry mode fan control Diagram Back Next TOSHIBA Carrier Operation Operation Mode Automatic Operation After the indoor unit receive Auto operation signal from remote the room temperature is detected and mode is selected per the graph AUTO mode can also be set by turning the system by pressing the Reset button on the indoor unit The control unit will set the fan speed to Auto and automatically set the temperature to 75 2 F 24 C e When Auto operation is started within 2 hours after a heating operation has stopped and the room Ta temperature is 68 F 20 C or more the fan starts in Ts 1 Super Ultra Low speed for 3 minutes after which the operating mode is selected Ts 1 e After the indoor unit controller select the operation mode to cooling heating A C will operate until room temperature reaches the set point then the compressor turns off A new mode an be selected after the compressor has been de energized for at least 15 minutes Cooling operation Monitoing Fan Heating operation Home Back Next TOSHIBA Carrier Operation Description of the Safety and Reliability Functions Current Release Control Outdoor temp To Setup
13. Outdoor Fan Motor DC type Checking DC Fan motor of outdoor unit can Turn OFF the breaker 2 be done by measuring resistance value of Sa the winding same as compressor two connectors 27 SJ Resistance value in the table is the value son ma nope AM SM when winding temperature is 20 C 20 22 for other condition the resistance value Does the fan rotate without trouble No should be in a range between 17 25 Checking procedure If the resistance value between Measure the resistance value of each winding by using the 1 Red lead D 2 White lead tester 2 White lead 3 Black lead Outdoor fan motor Model ICF 140 43 4R G Blacklead D Red lead of the connector No CN300 Motor winding is 17 to 25 it is normal Red 20 to 22 Q Yes 2010220 White Black 20 to 22 C Certified Installer Program CIP 9 2 Home Back Next TOSHIBA x Carrier Services How to check the main parts 3 Indoor Fan Motor amp Louver Motor 1 Do not disconnect the connector while the fan motor is rotating 2 Check the resistance value in case that indoor fan motor or louver motor per details below Measure the resistance value of each winding by using the tester Indoor Fan Motor AC AFS 220 20 4R Louver Motor MP24Z 3T under normal temp 25 C Louver Motor MP24Z 3T PA PUR
14. 2 140 43W 4 Coil of 4 WAY VALVE Al STF jAC208 220V 6 jPressure SW ACB 4UBBE2W Sensors TS TO TE 7 1100 250 8 jsesrTD 160000 Q 9 0 Home Back Next TOSHIBA Carrier Operation Refrigeration Cycle Diagram For example model RAS 12LKV UL RAS 12LAV UL Temp measurement Remark The refrigeration cycle INDOOR UNIT Indoor heat exchanger diagram of each model is m m a BEES provide in the service manual 2718 Min 2 measurement Deoxidized copper pipe m 2 8 Chargeless 15m Gauge attaching port n Outer dia 6 35mm Charge 20g m Vacuum pump connecting port Thickness 0 8mm j 16 to 20m Deoxidized copper e ee en Lis lt cde 9 52mm a Thickness 0 8mm x OO x 76 Muffler Strainer Cooling Coil Valve 4Ways ON Heating Coil Valve 4Ways OFF 4 wawv valve Y Muffler Pulse Modulating Fusible Plug valve at liquid side 73 4 2 NOTE 7 Wi Gas leak check position Refrigerant flow Cooling Refrigerant flow Heating _ DATHATF 20F Outdoor heat exchanger Split capillary 1 2x 80 4 91 2 x 80 Temp measurement 2 purum Li fan Refrige
15. Discharge temp error disconnection of TS TC gas leakage P M V sensors Check code 02 1C Check code 03 Temp Sensors TC TS TE TO or TD Pipe clog Gas Leak m L gear refrigerant 598 Is coil of the pulse motor valve P M V correctly set Set it correctly NO Is positioning sound of valve sound hitting to stopper heard from valve when the air conditioner starts the operation after turning off power of the air conditioner once Replace coil valve YES Q To next slide Home TOSHIBA Carrier Services eee Diagnosis and Possible Action 2 3 6 Outdoor unit operation stops 10 minutes to 1 hour after startup and an error code is displayed Error Code 03 1E or 02 1C From previous slide Are temp sensors of indoor outdoor units correctly set to the holder NOTE The temperature sensors which are used to control pulse motor valve include indoor heat exchanger sensor TC outdoor heat exchanger temp sensor TE outdoor suction temp sensor TS and outdoor sensor m Set it correctly Possibility causes Gas amount check and valve clogging check Sensors Remove sensor connector from the P C board in indoor unit TC TS TE TO or TD Remove connector from the board Pipe clog Operate the air conditioner in COOL mode by TEMP button
16. Follow to finished Follow to Cold Draft condition i Prevention Defrost Start Defrost Finished Q 49 Home Back Next TOSHIBA gt Carrier Operation Description Control Only in heating operation Operation of the component parts After defrost terminates the compressor is Parts Operation Diagram of the defrosting operation de energized 50 seconds The 4 way valve is de energized 40 seconds after the compressor is de energized Indoor fan Em After 50 seconds the compressor and outdoor fan 29 opp 5 energized at the same time ON Outdoor fan OFF 5 Indoor fan will operate under the Cold draft AWAY VALVE PRAES mm AE SEWER prevention Control algorithm Follow to finished Follow to Cold Draft condition Prevention Defrost Start Defrost Finished Home Back Next TOSHIBA b Carrier Operation Operation Description of Product Features 2 Certified Installer Program Home Back Next TOSHIBA Carrier Operation Operation Description for One Touch Comfort One touch comfort starts up the system with conditions already preset from the factory The system operates in two zones that are a function of the elapsed time and the difference between the room temperature Ta and the set point Ts as shown in graph below Any signal received from remote control will cancel the comfort mode o
17. Services 575 4 Next TOSHIBA Inverter Basics Leading Innovation gt gt gt _ DC325V a Converter Inverter Compressor Converter 8 inverter gt Sensors CY ies LES EK QU GA Inverter assembly Outdoor unit i Case Study indoor unit 1 Introduction Installation Operation Services Home Back Next TOSHIBA Ca rrier Inverter Basics Control Method of Capacity Compressor Revolution Speed Explanation on cooling operation Fundamental Control Another Control Indoor Unit Indoor Unit U C Indoor Unit Capacity 1 Prevent Freezing of ee Indoor Heat exchanger 2 Limit of Maximum Speed Temp Ta Calculation of Necessar by Operation Mode ed Ta Tset Necessary Compressor Speed C S Compressor C S f 1 U C Ta Tset Tset Speed Transfer 5 to Outdoor Unit Outdoor Unit 1 Speed Control at 3 Discharge Temp Control Indoor Temp drop 4 Limit of Maximum Speed NO Starting For Reliability 2 Current Release Control YES Iriltilie a y L Next TOSHIBA Carrier Inverter Basics What is Toshiba DC Hybrid Inverter Toshiba DC Direct Current Hybrid Inverter the advanced digital technology in air conditioning system i
18. easily or SPACE FOR INDOOR UNIT not Notes Clearances shown above the minimums required for all sizes installation M eee x Case Study E 15 introduction User Training Operation 5 2 FA t amp FAQ 49 9 Next 5 Carrier Installation The Outdoor unit needs to be installed ina place where it canbe easily serviced Clearances show are the minimum required Installation _ Case Study introduction User Training Operation Services FAQ Home Back Next SHIBA Installation amp Carrier p Wiring connection and Conduit Fixing Indoor unit or Train d GF 5 1 1 Remove the front panel and terminal cover Installation 2 Remove the mount conduit from the body 3 Assemble the conduit and connecting cable to the mount conduit Back Next TOSHIBA Carrier Installation Wiring connection and Conduit Fixing Indoor unit 1112 S 5 Connect the connecting wires to the terminal instalation Back Next TOSH
19. motor connector 5 5 Check this condition within 15 seconds after starting unit Is it possible to rotate cross flow fan by hand properly Peplace bearing Turn off indoor unit and rotate cross flow fan by hand when the unit is on standby At this time is it possible to detect DC 1V or more between 5 3 OGO of motor connector CN31 Fan motor operates normally E jT FX 6 j LIUC al Home Back Next 5 Carrier B _ Cause Services Diagnosis and Possible Action 2 3 3 Indoor fan starts to rotate when power supply is turned ON DC motor only The IC is built in the indoor fan motor Therefore the PC board is also mounted to inside of the motor If the PC board is soldered imperfectly or the IC is defective the fan motor may automatically rotate by turning on power supply Home Indoor fan starts rotating when power supply is turned on Check output DC voltage of fan motor on P C board Measure voltage between GND BLACK and 5 V line YELLOW of motor connector CN31 while indoor fan motor is rotating Under DC 1 0 DC 1 0V or more P C board is defective Motor is defective Replace P C board Replace motor E lad 2
20. next table Press 4 ev button to change the check code forwards or backwards If there is a fault the indoor unit will beep for 10 seconds Pi Pi Pi Note the check code on the display of the remote control 2 alphanumeric digits will be indicated on the display All lamps on the indoor unit will blink 5Hz aJ ia 5 JELIVICES 1 i O 9 Home Back Next TOSHIBA Carrier Services Self Diagnosis by remote control Error code Block distinction Air Check Check Block Cause of operation conditioner in os status Vi es ec LOL board et nt Operation of diagnosis function Short circuit or discon nectionof the room Operation Displayed when continues temperature sensor TA sensor Being of place Operation continues disconnection short Displayed when circuit or migration of heat exchanger sensor TC sensor error is detected error is detected Judgment and action Remarks 1 Check the room temp sensor 2 When the room temp sensor is normal check P C board 1 Check heat exchanger sensor 2 When heat exchanger sensor is normal check P C board For example if the screen shows OC and the indoor unit beeps for 10 seconds The installer needs to refer to the table in the service manual which will indicate that the cause of the problem for OC is from a short circuit or disconnection of th
21. problems that cannot be detected by the self diagnostic function and no error codes are displayed In this case diagnostics should be performed by observing the operational symptoms Some examples are shown below 2 3 1 Operation lamp does not blink after power reset 2 3 2 Indoor fan does not operate 2 3 3 Indoor fan starts to rotate when the Power supply is turned on DC motor only 2 3 4 Remote control does not operate 2 3 5 Outdoor unit does not operate and error code 04715 displayed 2 3 6 Outdoor unit operation stops 10 minutes to one hour after startup 2 3 General checking of the system components IL P XL Home Back Next TOSHIBA Carrier Services Diagnosis and Possible Action 2 3 1 Operation lamp does not blink after power is reset RAS 09LKV UL AC fan motor Turn off power supply once and lt Primary check gt 5 second later turn it on again 1 Is the supply voltage normal NO 2 5 the normal voltage provided to the outdoor unit Is OPERATION indicator flashing 3 15 the crossover cable connected properly YES 4 Is the fuse F0 1 blown Does transmission mark on remote controller flash START STOP button is its signal on remote controller transmitted a YES YES 5 it possible to turn on power supply by pushing NO Remote controller is defective Refer to Troubleshooting Unit
22. the fan motor Home Back Next Turn off power supply once and turn it on again Does fan motor continue to operate Start to operate indoor unit in cooling operation at airflow level LOW Does indoor fan operate ES it possible to detect DC 1V or more between 5 Q and 3 Q of motor connector CN31 icem id A it possible to detect 310 340 between and G of motor connector CN31 Diagnosis and Possible Action Turn off indoor unit and remove Motor connection condition connector from motor Is it possible to detect DC 15V push START STOP button between and of on remote controller to stop motor connector flashing lamp indoor unit 2 3 2 Indoor fan does not operate it possible to detect connector 31 DC ao am RAS 12 15 17 22LKV UL E of motor DC fan motor Start to operate the indoor unit in except heating operation Turn off indoor unit and At this is it possible to remove connector from motor Then start to operate indoor COO and unit with remote controller connector CN31 Start to operate the indoor unit in except heating operation At this time is it possible Is it possible to to detect DC 1V or more change airflow level between 5 and Dn of
23. 2 Check P C board Protective operation of outdoor fan drive system fan lock etc Replace P C board or fan motor 1 Check outdoor temp sensor TO 2 Check P C board After 20 seconds operation position detect circuit error occurred Replace compressor trouble on P M V Next 9 TOSHIBA Carrier Services Self Diagnosis by remote control Error code Block distichon Operation of diagnosis function Air Judgment and action Cause of operation conditioner Remarks status m Others Return serial signal has Operation Flashes when 1 Report start and stop with interval E including been sent when operation continues trouble Is detected Of approx 10 to 42 mins Code is not compressor Started but not from on return serial Display during operation Supply half way signal and normal Gas Also check gas leak status when 2 Unit operates normally during 1 Compressor Thermo signal is reset check operation If return serial signal does not stop Gas shortage between indoor terminal board 2 Gas leak 3 replace inverter P C board 2 Instantaneous power If signal stops between indoor failure terminal board 2 and 3 replace indoor P C board Compressor does not All off Displayed when 1 Trouble on compressor Rotate current protective Error is detected 2 Trouble on wiring of compressor Circuit does not operate miss phase when a specified ti
24. 25 5 m c e N o M lt D D D un un ju es D un 16 3 Moveable Left hand side or Right hand side Yes Service Valve Thread 1 2 UNF 20 Threads Inch Case Study Introduction User Training Operation Services 2 7 Next TOSHIBA rrier Installation Prod Model RAS OSLKV UL RAS 12LKV UL RAS 15LKV UL RAS 17LKV UL RAS 22LKV UL RAS OSLAV UL RAS 12LAV UL RAS 15LAV UL RAS 17LAV UL RAS 22LAV UL Fuse Circuit Breaker of main power supply 1i Power cord is not provide 3 LE EOU amp CDU et provide Stu 182190 User Training Operation services EG uy _ i a i i __________ 9 0 Next Introduction TOSH IBA Carrier Installation init m m IRE te without BRUT the air r discharge to secure effective operation 2 4 i _ to prevent capacity SER decrease and other problems At least 3 sides should be kept free OTI from the walls g5mmormore Also the installer needs to consider whether the connecting point to the outdoors unit be done
25. AQ 9 9 Home Back Next TOSHIBA Carrier Operation Manual Indoor Fan Control Heating 7 ow Mp In case that fan speed is set to Auto the control board will automatically control the fan Speed The automatic operation will set the fan speed by considering the operation mode Cool Dry or Heat and the difference between the set point and room temp The method of controlling Auto fan speed will be explained in more detail when discussing the operation for each mode Q 49 Home Back Next TOSHIBA Carrier Operation Outdoor Fan Control Outdoor fan operation is controlled by the operating mode Cool Dry Heating Outside temperature TO and compressor speed as shown in the Cooling amp Dry mode outdoor fan tap table and Heating mode outdoor fan tap table In case of selecting the Eco mode fan speed control of outdoor unit will also be affected Table Cooling amp Dry mode outdoor fan tap v s Table Heating mode outdoor fan tap v s To To and compressor speed and compressor speed In cooling pert In Heating operation Compressor speed rps 7138 317 323 MAX Compressor speed rps 16 8 47 9 48 5 MIN MIN 50 F 10 C b mode 22 F 5 C During Tez 100 F 28 mode 2100F SG EX When To is abnormal When Is abnormal 49
26. Compressor ON be heard SH control Td release control PMV Open degree control Stop by Room temp remote sensor Ta Defrost controller sensor control Compressor Compressor Stop Stop Move 9 Move to stop defrost position position _ i i 9 o Next TOSHIBA Carrier Operation Pulse Modulation Value PMV Control 2 When the compressor is ON control unit will measure the super heat SH adjust the position of the PMV ms initial accordingly At the same time the control unit needs to limit the Td result under the set value PMV Open degree control Stop by Room temp remote sensor Ta Defrost controller sensor control Compressor Compressor Stop Stop Move to n defrost position position c f LE i 2 Home Back Next TOSHIBA Carrier Operation Pulse Modulation Value PMV Control 3 When the compressor is de energized either by the remote control or by satisfying the set point the PMV will move to the stop Move to initial position that is set to equalize the low and high pressure sides Compressor ON SH control es PMV Open degree control Stop by Room temp remote sensor Ta Defrost controller sensor control Compressor Compressor Stop Stop Move to Move to stop defrost position position Next TOSHIBA gt Carrier Oper
27. IBA Carrier Installation Wiring connection and Conduit Fixin Outdoor unit 9 9 1 Remove the cover and assemble the connecting cable power cord and conduits to the mount conduit Connecting cable Power cord 2 Assemble the connecting wires power wires to the terminal Home Back Next TOSHIBA Carrier Installation Wiring connection and Conduit Fixing Outdoor unit 3 Assemble the cover when piping work installation and operation test are finished Note Refrigerant pipes are connect to the outdoor unit in horizontal direction 49 O Next 5 Carrier Inverter Basics 1 move 5 Inverter Basics Introduction Operation Services Case Study amp FAQ Back 7 Next TOSHIBA Inverter Basics Leading Innovation gt gt gt What is Inverter Inverter is the feature that continuously changes the compressor revolution speed by varying frequency or voltage On the other hand the inverter can change the frequency input to the motor freely by the electronic control technique to control the motor revolution speed As a result the Inverter air conditioner instantly raises or lowers the temperature of the room by increasing the compressor revolution speed at the start of the operation After the room is heated or cooled the Inverter gradually lower the compressor of revolution to save capac
28. SHIBA Carrier Operation Operation Description for Quiet Operation When Quiet operation is pushed the fan speed is restricted to running at L until the Quiet button is pushed again Because of the limited air flow the cooling or heating capacity might not be sufficient to meet the load Quiet operation cannot be set when unit is running in the Dry mode Home Back Next TOSHIBA Carrier Operation Operation Description for the Self Cleaning Operation The self cleaning function is designed to reduce humidity that could cause the growth of mold inside the unit This is accomplished by energizing the indoor fan for a period of 30 minutes after the unit is shut off If desired this function can be stopped by the user or disabled as shown on the next slide Operation display OFF OFF ON ON net cd rpm is depend on presetting 722 Timer display ON Slidhtly pen ON or OFF Normal depend on presetting of timer function depend on presetting of timer function ON or OFF EDIDI depend on presetting per room temperature eir E ON or OFF CDU fan depend on presetting per room temperature OFF OFF Cool mode or dry mode Self Cleaning mode operation more than 10 mins operate 30 mins Turn off by remote controller or Automatically turn off timer off function Operating time Q 9 Next TOSHIBA x Carrier Opera
29. TOSHIBA Ci rri er Services Self diagnosis Case E OPERATION TIMER and FILTER lamps are blinking Protective circuit operation for others including compressor 5Hz 5 times in 1 sec Installation User Uperation 1 Next TOSHIBA rrier Services Failure diagnosis 2 2 Self diagnosis by remote controller Check code The remote control can also be used as a diagnostic tool When set to the service mode the remote control will provide check codes that will enhance the diagnostic process If a fault is detected all lamps on the indoor unit will flash at 5Hz and the unit will beep for 10 seconds Beep Beep Beep The timer lamp usually Flashes 5Hz during self diagnosis Home Back Next TOSHIBA rrier Services Self diagnosis by remote controller How to set Remote Control to service mode Clear memory code Clear the code in the microcontroller memory by 1 Press CHK button with the tip of a pencil to set the remote control to the service mode 00 is indicated on the display of the remote control The timer lamp on the indoor unit blinks continuously 5 Hz 49 Next TOSHIBA Ci rri er Services i gt p lt a m E e 2 Press CLR button to ensure that previou
30. When temperature of the indoor heat exchanger rises but does not exceed 126 F 52 C or when it drops below 118 F 48 C the capacity control controls the compressor speed R zone Home Back Next TOSHIBA Carrier Operation Description Control Only in heating operation How defrosting operation starts The temperature sensor of the outdoor heat exchanger determines when the defrost cycle is Initiated 10 to 15 minutes after the heating operation starts the lowest value of the TE sensor is stored in memory as When the heating mode operates for 27 minutes 40 seconds the outdoor unit controller starts comparing with the TE result Start of heating operation Operation time Minute C zone zone B zone Outdoor heat exchanger temperature Back Next TOSHIBA gt Carrier Operation Description Control Only in heating operation How defrosting operation starts i Start of heating operation If TE is in zone A and 0 gt 4 5 F 2 5 C continues for 2 minutes the outdoor unit Controller will start the defrost operation 15 TAN 3 Operation time D EM 34 If is zone B for 2 minutes the outdoor unit controller will start defrost operation without comparison with TeO If TE is in zone C and 0 gt 3 C for 2 minutes the outdoor unit controller will start the defrost operation
31. aft Prevention control Will also turn the indoor fan on off and control the louver This function works for both manual and AUTO fan speed In starting Until 12 minutes passed after operation start When 12 to 25 minutes passed after operation art and mom temp 5 5 4 F 3 C of lower than set temp Manual Room temp Set temp 7 Fi 4 C FAN AUTO Tc F C 15 48 113 45 8 115 48 1 112 45 91 33 01 33 32 80 32 Ad limitation while 5 MANUA L mod A When Tsc 2 75 F 2 Operation Linea pproximate H and SUL wath Tc SUL W2 Fan speed MANUAL in starting Fan speed AUTO in stability Fan speed AUTO in starting 5 in stability Is C C A is 75 F 24 when lt 75 24 C is Tse Tsc Set value In stability Room temp gt Set temp 6 3 F 3 5 C When 12 to 25 minutes passed after operation start and room temp is higher than set temp 5 4 F 3 C When 25 minutes or more passed after operation start gt Next e Back TOSHIBA Carrier Operation Operation Mode Dry Operation e Dry mode the compressor speed is controlled by comparing the room temperature Ta and the set point temperature Ts Maximum hertz is limited to around 30 50 of the cooling operation Dry mode fan control AUTO gt Hes 5 0 to 2 F 2
32. arrier has conducted extensive research to Auto Fan Speed to let your air conditioner do assess customer preferences in order to offer a combination of features that are perfect for you EE Quiet The indoor will operate at the lowest noise level It shifts to super low fan speed reducing the sound of the indoor unit by up to 3 dB the thinking Operating Mode Select from Auto Changeover Cooling Drying dehumidification Fan Only or Heating Comfort Sleep For optimum comfort set the temperature to rise by 1 C after 1 hour then another degree after 2 hours which will be maintained until morning Swing amp Fix Louver Optimize the airflow direction by selecting fron a range of Fixed and Swing louver positions Eco Logic Achieve energy savings of up to 25 compared with standard settings without sacrificing comfort Timer Set on and off times or program a setting to repeat every 24 hours Hi Power Extra airflow to rapidly reach your desired temperature setting Auto Diagnosis The 26 Code Auto Diagnosis monitors main functions and components for easy maintenance Fe Home Back Next TOSHIBA Carrier User Training One Touch Preset Store your desired settings and mei bs activate them at the touch of a button Temperature control Fan Speed Control your airflow with five fan speeds or select Auto Fan Speed
33. ation Pulse Modulation Value PMV Control 4 When defrost is initialized the PMV will be moved to a set position that will initialize maximize the efficiency of the defrost cycle Move to initial position Compressor ON Td release control SH control PMV Open degree control Stop b Room temp sad sensor Ta controller sensor control Compressor Stop Stop Move to stop defrost position position re 9 Next TOSHIBA Carrier Oper ation Indoor Fan Control Indoor fan can be controlled manually through the remote control or through the control board When set in AUTO using the table below RAS 12LKV UL HEAT DRY Fan fow rate Fan speed Air flow rate rom cfm rpm cfm 335 571 433 735 335 571 433 735 ul Symbols 321 546 422 717 UH Ultra High 303 515 404 685 H High 274 465 350 5941 M Medium 248 421 328 557 TES E 235 400 302 514 L l Low 200 340 248 421 L Low 194 330 241 409 UL Ultra Low 159 270 219 372 SUL Super Ultra Low 159 270 212 360 141 240 190 323 118 200 165 280 65 110 110 187 55 110 4f UV anita A units x EAE Case Study introduction Installation User iraining 5 i 3 F
34. ck Next TOSHIBA Carrier Operation Operation Description for the Auto restart Operation To disable the auto restart function press and hold the reset button on the indoor unit for 3 seconds What happens next depends if the unit is in standby or operating mode If unit is standby mode the green operation light is on the unit starts to operate and 3 beeps are heard If the unit has been running the green operation light is off the unit is off and 3 beeps are heard 9 Next Services TOSHIBA Carrier 277777 y t t i 5331325435 11311313433 41881444844 28 4 ES uns EL je ALLIT 5 amp FAQ es Next TOSHIBA Carrier Services How to diagnose the problem Troubleshooting Procedure 1 Confirm if symptoms are normal or not 2 Primary Diagnosis 2 1 Check flashing LED s of Indoor unit 2 2 Self Diagnosis using the error code on the remote control 2 3 Diagnosis using the system symptoms 3 How to Check the Main Parts Home Back Next How to diagnose the problem 1 Confirm 15 symptoms are normal 1 1 Confirm that the power breaker operates ON normally 1 2 Confirm that the voltage supplied is in the range of 10 of the rated voltage If power voltage is not in this range the unit may not operate proper
35. del RAS 12LKV UL Indoor Unit Control Unit Heat Exchanger Sensor Tc Room Temperature Sensor Cold draft preventing Function 1 3 minute Delay at Restart Louver Motor for Compressor Drive Control Louver Motor Infrared Rays Signal Receiver and Indication Fan Motor Starting Control Processing Temperature Processing LE Indoor Fan Timer Motor Control 1 Serial Signal Communication Indoor Clean Function Fan Motor D Serial Signal Transmitter Receiver Power Supply Serial Signal Communication From Outdoor Unit Operation Command and Information 4 21225127 6 v 272 gt Home Back Next TOSHIBA Carrier Operation Control Block Diagram CDU For example model RAS 12LAV UL Power Supply To Indoor Unit Power Supply from source MCC5009 P C B OUTDOOR UNIT Indoor unit lt send receive circuit PWM synthesis function Input current release control Discharge IGBT over current detect control t Outdoor fan control Current detect Gate drive circuit Current detect High power factor correction control Inverter output frequency control A D converter function PMV control Outdoor air temp sensor Suction temp sensor Heat exchanger temp sensor Discharge temp c
36. e is similar to cooling mode operation but differs in only two items 1 4 way valve is de energized in heating 2 For PMV operation Super Heat SH is calculated by comparing suction pipe Ts temperature to the outdoor heat exchanger temperature Te Operation flow chart of Heating mode operation Operation ON Setup of remote controller Indoor fan motor control Louver control Operation Hz Indoor unit contro Control Requierment sending of operation command signal Compressor revolution control Outdoor fan motor control Operation Hz control Include limit control 4 way valve control Heating position Pulse Modulating valve control SH TE TS Outdoor unit control 49 Back Next TOSHIBA Carrier Operation Auto Fan Heating Operation Fan speed Auto fan speed will be controlled by the comparing the difference between the set point T and the room temperature as shown in the graph on the left Note This algorithm works as long as the TC Indoor coil temperature is less than 107 6 F If TC is 2107 6 F Minimum Airflow Control will take over until TC drops below 106 F 1 Fan speed iM L x 1 4 L Fan speed M L x 2 4 3 Fan speed M L x 3 4 L Calculated with linear approximation from M and L Heating Mode fan speed AUTO 49 Back Next TOSHIBA N Carrier Operation Minimum Air Flow Con
37. e room temperature sensor TA The way to diagnose this problem is to check the room temp sensor If the room temp sensor is normal then check the PC board S S e Next Back TOSHIBA lt rrier Services Self Diagnosis by remote control Error code Or taking another example when the check code turns to 11 on the remote control screen then the indoor unit will beep for 10 seconds It is because of an indoor fan lock or trouble on the indoor fan circuit The service mechanic should check the PC board first If the PC board is normal then check the motor Block distinction Operation of diagnosis function Air Judgment and action Check Check atio Look of indoor fan or E 1 Check P C board trouble on the indoor Mene Eg 2 When board is normal fan circuit 5 check the motor Not l Trouble on other Operation Displayed when Dant displayed indoor P C boards continues error is detected SEIVICES E 1 L Home Back Next TOSHIBA Carrier Services Self Diagnosis by remote control Error code Block distinction Operation of diagnosis function Check Air Judgment and action code Block code Cause of operation Remarks E Return serial signal is not Operation Flashes when 1 When the outdoor unit never Cable and sent to i
38. ed Installer Program CIP Next 5 Carrier Operation Operation Description for ECO Operation Inverter Heating operation When the ECO operation starts operation hertz of compressor will be controlled by using the difference between room temperature and set temperature The operation hertz of these A B C zones are lower than frequencies set by capacity control Room temp Set temp c 30 Min Time J A 0 v 1 c aic TO X JO af v 11 IU JV 3 d ai Case F gt je To Fior rcf 1 lem ir amc Y OGLICTIOT 151 USEI 77 alung VIC cS CX ERI 1 Certified Installer Program Next TOSHIBA Carrier Operation Operation Description for Comfort Sleep Operation COMFORT SLEEP SLEEP TIMEH AUTO FAN Remarks The COMFORT SLEEP operation can not be set in Dry mode or Fan Only mode Benefits of comfort sleep function are Quietness for more comfort when the room temperature reaches the set temperature Save energy by changing the room temperature automatically The air conditioner can shut down automatically Back Next TO
39. er Press SET button while pressing CHECK button with a tip of a pencil 8 Then press cy button to transmit the signal to the Indoor unit Introduction Installation User Training Operation TOSHIBA arrier Services Check point Symtom 1 Check main part Shutoff the power supply 1 Is the Fuse F01 blown 1 Application of shock voltage of Power supply circuit 2 Is the R64 opencircuit 2 Check Power supply Remove the connector for the motor Voltage check 1 AC power cord is defective circuit and turn the power on 1 Between F01 and CNO 1 1 Poor contact of the terminal plate If the OPERATION lamp blinks AC 208 230 V 2 Line filter 101 is defective 0 5 sec 0 5 sec OFF when 2 Between and of C27 Capacitor C27 is defective the power turning on the checking DC294 DC325V Bridge diode 1 is defective points described as 1 4 of right 3 Between 5V and GND 1 or 01 or is defective column are not necessary to 4 Between 12V and GND 4 01 or TO1 or C32 is defective perform 3 Check LED Lamp Start the operation with 1 All indicators light for 3 sec Defective indicator or poor shorten delay time 2 Indicators indicate normally housing assembly CN20 after approximate 3 sec 4 Check Fan motor Turn the power on after connecting 1 Motor does not rotate The key 1 Poor contact of the motor Drive circuit the motor con
40. function for Inverter model also limit the operation Hz of compressor for more energy saving Hz Cool min DRY max Operation Hz of compressor will also set by the difference of Ta TSC as shown on previous page Operation Hz of compressor will be calculated by the following formula 12 DRY max COOL min 6 x 5 COOL min Remarks is not suitable the condition 11 DRY max COOL min 6 x 4 COOL min of high cooling load because cooling capacity 10 DRY max COOL min 6 x 3 COOL may not be sufficient 9 DRY max COOL 6 x 2 COOL min 8 DRY max COOL 6 x 1 COOL min Remark Control values are for example only Please confirm service manual model by model gt Back Next e O Certified Installer Program CIP TOSHIBA rrier Operation Operation Description for ECO Operation Inverter Heating operation ECO operation for heating mode will start immediately when the ECO button on a remote control has been pressed The operation hertz compressor will be limited to 3 ranges A B C Operation hertz of each model is set differently for example Room temp Set temp c 30 Min Time gt Cmmiimmc QC VICOS 37 gt 2 iat f T s 4 introduction Installation User Training qm fj V mi A NT TET lee Certifi
41. if position detect circuit still error Replace P C board 2 Measure resistance between wires Of compressor and perform short circuit Replace compressor Current detected circuit All off error Displayed when Even when trying to operate again Error is detected all operations stop immediately Replace P C board Disconnection short All off Displayed when 1 Check sensor TE Ts circuit of the outdoor heat Error is detected 2 Check P C board exchanger sensor TE or suction temp sensor Ts a A zl a Jd Next TOSHIBA Carrier M Services Self Diagnosis by remote control Error code Block distinction Check Check code cao Cause of operation Outdoor Disconnection or short i P C board Circuit of discharge temp sensor Outdoor fan drive system error n Outdoor heat exchanger Displayed temp sensor error Outdoor Compressor drive output board Error compressor error EM Gum lock missing etc Break down Operation of diagnosis function Air conditioner status Remarks Displayed when Displayed when Error is detected Operation continues All off Displayed when Error is detected SELVICES Error is detected Judgment and action 1 Check discharge temp sensor TD
42. ignificantly less i energy consumption M higher cost effectiveness mu KE Eu 1 1 5 relie _ Next TOSHIBA gt Carrier Inverter Basics TOSHIBA Advanced Technology Core technology and contribution to the system DC twin rotary compressor This compressor enables the adoption of a high pressure refrigerant High efficiency is evident in low speed operation ranges It can reduce energy consumption when operated in along stable conditions High Efficiency Rotating with two rollers at the same time makes accurate compressor rotation possible with less energy loss As a result it offers a great reduction in energy consumption yet with very powerful operation High Reliability Due to the unique double counter rotating cylinder accurate rotation is to achieve with high reliability So you don t need to worry about frequent maintenance Dc Motor Energy saving High motor efficiency Twin Rotary Cylinder Low Noise amp Low Vibration Energy Saving Lw Revolution Less than 30 rps High Reliability Low Load to Shaft Suilable to R 410A Twin rotary O Low Noise Twin rotaries make rotation more stable The compressor operates by two rollers that ensure a steady rotation rather than a single rotary compressor in order to reduce the unwanted vibration Y 1 1 relie Next
43. ion it provides freeze protection Usual cooling capacity control 1 When the temperature of the indoor heat E the compressor speed is maintained Q zone p p exchanger drops below 41 F 5 C the 5 Compressor speed is reduced P zone co IA When the value is e 43 F Q doli T ed 2 When the temperature of the indoor heat 2 c 7 exchanger is between 43 F 6 C and 45 F 7 C 2 8 Reduction of compressor speed 3 When the temperature of the indoor heat exchanger rises above 45 F 7 C the compressor speed is controlled by capacity control in cooling operation R zone Home Back Next TOSHIBA Carrier Operation Description of the Safety and Reliability Functions Indoor Heat Exchanger Temperature Control During the heating operation this function protects against high refrigerant pressures 1 When the temperature of the indoor heat A exchanger rises and operates between 126 F 3 dere 52 C and 131 F 55 C or when the indoor heat 3 ol A so yo exchanger drops and operates between 131 F Br 55 C 118 F 48 C the compressor speed is 520 maintained Q zone 5 2 When the temperature of the indoor heat exchanger rises to 131 F 55 C higher the compressor speed 15 reduced P zone E Usual heating capacity contro 3
44. ity and reduce temperature fluctuation in the room With a Fixed speed air conditioner it takes longer to raise or lower the temperature of the room because the compressor revolution rotates at the same speed throughout This means that the room tends to be over heated or over cooled Furthermore when the room temperature reaches the set temperature the sensor will signal the Fixed speed compressor to shut off entirely thereby creating a drastic change in room temperature This causes discomfort and results in energy wastage CONVENTIONAL FIXED SPEED CONVENTIONAL INVERTER ed OSHIBA DC HYBRID INVERTER Room Temp _ pm Home Back Next TOSHIBA Inverter Basics N Leading Innovation gt gt gt What is Inverter e The revolution speed N of the general induction motor is stable rpm _ 120t 1 S f Power supply frequency 50 or 60 Hz isi i P Motor pole P S Slip Approx 5 Inverter varies the frequency freely which is input to the motor to change revolution speed of the motor Voltage wave form in Voltage wave form in low speed revolution high speed revolution 5 relie Next Leading Innovation gt gt gt TOSHIBA Inverter Basics alp rinciple ir AC 230V 50 60Hz Wiring diagram Make AC wave form again Case Study Introduction Installation Operation
45. j f 6 1 board 6 Blue 5 Yellow 4 White 3 Black 2 1 Red Back Next TOSHIBA Carrier Services Diagnosis and Possible Action 2 3 4 Remote control does not operate If the remote control cannot operate properly check whether the batteries have run out or not 9 Press on off button to transmit a signal to AM radio receiver 9 Shoot signal to a digital camera that can detect an infrared signal Remark remote control is unable to operate or distorted under these conditions 1 Radio frequency interference 2 Electronic ballast EMF 3 Indoor exposed to sunlight 4 lamp 5 A or B setting conflict Indoor set B when the battery is changed the signal of remote may reverse to A At B amp Q Home Back Next TOSHIBA S Carrier Diagnosis and Possible Action 2 3 5 Outdoor unit does not operate and error code 04 is displayed Is the voltage between indoor terminal block L2 and S varied Confirm that transmission from indoor to outdoor is correctly performed based on the following diagram Services Terminal block on indoor side 5 G e Terminal block Red White Tester Normal time Voltage swings between DC 15V and 60V Abnormal time Voltage does not vary aJ Jeg 6 2 Home Back Next TOSHIBA 4 rrier Services Possibility causes Gas leakage
46. ly 1 3 Normal operation These are the normal condition for the Toshiba Carrier units 1 When the main power supply is turned on the OPERATION lamp on the indoor unit blinks 2 The compressor does is not energized even if the is a call for heating and cooling 3 minute time delay 3 In Dry Operation Fan air flow display on the remote control does not change even though Fan air flow button Is selected 4 Increasing of compressor motor speed stops approx 30 sec after operation started then compressor motor speed increases again approx 30 sec later 5 In AUTO mode the operation mode is changed Back Next TOSHIBA rrier Services How to diagnose a problem 2 Primary Diagnosis To diagnose a problem use the following methods 2 1 Check the flashing LED s of indoor unit 2 2 Self diagnosis using the error code on the remote control 2 3 Diagnosis using the system symptoms Home Back Next TOSHIBA NY Ci a rrier Services Failure diagnosis 2 1 Judgment by flashing LED of the indoor unit To diagnose the troubles use the following methods The indoor unit is equipped with a self diagnosis function that indicates when a problem occurs by flashing the LED lights on the display panel Installers and service mechanics need to check the details of each model in the service manual before starting any service work The following can be displayed on the front panel of the indoor unit l E E
47. me passed after Compressor had been Activated NP 49 Next E E z E TOSHIBA N Carrier Services Self Diagnosis by remote control Error code Block cs Operation of diagnosis function heck Air Judgment and action Check Check Mt g Cause of operation conditioner Remarks 8 status mi thers p ischarge temp excee Isplayed when 1 Check discharge temp sensor including 1170C Error is detected TD a compressor EN 2 Gas leak 3 Trouble on Check power voltage Break down of compressor Displayed when Error is detected 220 230 240 V 10 Overload operation of refrigeration Cycle Check installation condition Short circuit of outdoor unit diffuser 4 Way valve inverse error Operation 1 Check 4 way valve operation ys Li During heating operation led je pipes Home Back Next TOSHIBA Ca rrier Services a Press ON OFF button to release the service mode 2 BH The display of the remote control returns to as it was before service mode was engaged r T E CaSe D amp FAQ Introduction Installation User Training Operation Home Back Next TOSHIBA Carrier Services Failure diagnosis 2 3 Diagnosis using the system symptoms There are other
48. ndoor side when continues trouble is detected Operate Lt serial signal the operation started on return serial 1 Check connecting cable signal and normal correct if detective wiring 1 Defective wiring of Status when signal 2 Check 25 fuse of inverter connecting cable is reset P C board 2 Operation of compressor 2 To display Other block during thermo Gas shortage operation check compressor Gas leak thermo Operation and supply gas also check gas leak 3 Unit operates normally during check If return serial signal does not stop between indoor terminal board 2 and 3 replace inverter P C board If signal stops between indoor terminal board 2 and 3 replace indoor P C board f VI x M 49 Home Back Next TOSHIBA Carrier Services Se ee Self Diagnosis by remote control Error code Block distinction Operation of diagnosis function Check Air Judgment and action code Block Cause of operation conditioner Remarks status Nu Outdoor T Inverter over current All off Displayed when aif protective circuit Error is detected If still error Replace P C Board But if short time operation of outdoor fan is normal Replace compressor Position detect circuit Error or short circuit Between winding of compressor Displayed when 1 Remove connecting lead wire of Error is detected Compressor
49. nector Start the operation is accepted connector operation with the following 2 The Motor rotates but it vibrates 2 Fan motor is defective condition too much 3 Fan motor drive circuit out of 1 Operation Cooling 3 Motor is rotate with max speed function 2 Airflow High fan 10 Second and stop 10 Second 2 cycle 5 Check output of Serial Push START STOP button once Check power supply voltage IC51 and 52 are defective communication to start the unit Do not set the 1 Between CN51 and mode to On Timer operation No 1 of CNO1 DC 15 60 6 Check sensor detection Make the operation status by 1 Compressor does not operate 1 The Ambient temperature sensor 2 OPERATION lamp blinks TA broken or connector CN61 1 The time of the restart delay timer loose is shortened 2 The Heat Exchange sensor TC 2 Cool operation broken or connector CN62 loose Q 3 Make the setting temperature lower 3 Main P C board is defective 3 4 enough than room temperature Next
50. odulating valve control by SH TS lt gt Next TOSHIBA amp Carrier Outdoor unit controller controls the operation of compressor outdoor fan motor Operation Mode Cooling Operation 4 way valve energized and PMV The outdoor unit controller sends operation signal back to the indoor unit controller Operation flow chart of cooling mode operation Operation ON Setup of remote controller Indoor fan motor control Louver control Operation Hz Control Requierment Indoor unit control A Sending of operation command signal Compressor revolution control Outdoor fan motor control Operation Hz control Include limit control 4 way valve control Cooling position Outdoor unit control Pulse Modulating valve control SH TC TS e Back Operation gt Next TOSHIBA Carrier Operation Auto Fan Cooling Operation Auto fan speed will be controlled by the comparing the difference between the set point T and the room temperature T as shown below Cooling Mode Fan Speed AUTO Alr volume AUTO Ta C 4 5 42 5 3 5 42 0 Fan speed M L x 3 4 L Fan speed M 3 x 2 4 L 27 41 5 20 10 5 Fan speed M L 1 4 L 1 0 50 5 AE approximation mE rom M and L Tsc Back Next TOSHIBA Carrier Operation Operation Mode Heating Operation The heating mod
51. of current release point Outdoor unit inverter main circuit control current Ensures that the electric power of the drive circuit does not exceed the allowed High Operating Current lt Setup value Reduce speed values Input current to the outdoor unit is detected Capacity control continues Based on Outdoor temperature the allowed current is determined Cooling current release value Heating current release value utdoor tem P RAS OSLAV UL RAS 12LAV UL RAS DSLAV UL RAS 12LAV UIL 113 45 C 104 F 40 C 61 F 16 C 52 F 11 C lt 51 10 55 Table Current Release Value Remark Above values are for sizes 9 and 12 K units Service manual has the values for other sizes Next TOSHIBA Carrier Operation Description of the Safety and Reliability Functions Current Release Control If the operating current set by capacity control is higher than the current release Outdoor unit inverter mal Outdoor tameo value compressor speed will be managed Setup of current release point by current release control instead of of capacity control and compressor speed will be reduced until operating current is less than current release value If the operation current is less than the current release value compressor speed will be controlled by capacity control as usual Operating Current Reduce compres
52. ontrol 4 way valve control Signal communication to indoor unit High Power Clock Inverter Outdoor factor Correction frequency circuit 4MHz Fan motor Input current Converter Inverter gt DC gt 1 L Driver circuit Relay of PMV circuit 4 PMV Pulse Motor Valve M C U Micro Control Unit 11 Next TOSHIBA b Carrier Operation Capacity Control From the operation flow chart it can be seen that compressor motor speed is set by calculating the difference of temperature between remote controller set temp Ts and room temperature detected by Ta sensor by using these following method Remote controller Indoor Unit 1 The difference between set temperature from remote controller Ts and room temperature Ta is calculated 2 According to the temperature difference the Correction of Hz signal correct value of is determined Detection of electromotive force of compressor motor winding 3 The rotating position and speed of the motor are detected by the electromotive force occurred the l motor winding with operation of the compressor correctionvalue of Hz Signal lt Operating Hz Inverter output change commution timing change change of compressor speed 9 Next TOSHIBA amp Carrier Capacity Control Continued 4 According to the difference
53. operates normally for remote controller Is fuse F01 of indoor control board blown Parts R01 C01 C02 R02 C03 001 002 003 004 101 are defective Is voltage DC12V indicated on rear of indoor control board normal Is defective board _ Parts of a power supply circuit defective Home Back Next TOSHIBA Carrier Oo Diagnosis and Possible Action 2 3 1 Operation lamp does not blink after power is reset RAS 12 15 17 22LKV UL DC fan motor Turn off power supply once and Primary check 5 second later turn it on again Is the supply voltage normal NO YES possible to turn on power supply by pushing ISTART STOP button on remote controller X NO YES Unit operates normally Is fuse F01 of indoor contral board blown Parts R04 R05 01 01 C03 01 and 01 are defective Is voltage DC12V or indicated on rear of indoor control board normal NO Is DC310 340V NO betwee CN10 D 0 Parts of a power supply circuit defective 7 Does transmission mark remote controller flash its signal transmitted properly YES Services Is the crossover cable connected properly Referto Troubleshooting for remote controller
54. rant amount 1 10kg OUTDOOR UNIT 9 0 Back Next 2 maximum pipe length of this air conditioner is 15 m When the pipe length exceeds 15m the additional charging of refrigerant 20g per 1m for the part of pipe exceeded 15m is required Max 100g TOSHIBA Carrier Operation Tempeature Model Standard Heat exchanger Indoor Outdoor Compressor condition C pressure pipe temp fan mode fan mode revolution T1 F C T2 F C rps 137 to 160 54 to 57 99 to 102 High High 60 0 9 to 1 1 12 to 14 37 to 39 fiet ta t 116 to 145 52 to 55 104 to 107 High High ff _ 1 0 8 to 1 0 11 to 13 42 to 44 Tempeature Model Standard Heat exchanger Indoor Outdoor Compressor condition C RAS pressure pipe temp fan mode fan mode revolution P Psia MPa T1 F cC T2 F 363 to 392 102 to 105 32 to 37 High High 62 2 5 to 2 T 38 to 41 0 to 3 377 to 406 106 to 106 3210 36 V High High 2 6 to 2 8 41 to 43 0 to 2 NOTES 1 Measure surface temperature of heat exchanger pipe around center of heat exchaner path U bent Thermistor themometer 2 Connecting piping condition 5 m Remark Above values are for sizes 9 and 12 K units Service manual has the values for other sizes Q Next TOSHIBA Carrier Operation Control Block Diagram FCU For example mo
55. resulted from comparison of the correction value of hertz signal with the present operation hertz the inverter output and the commutation timing are varied 5 Change the compressor motor speed by outputting power to the compressor content of control operation are the same for both cooling and heating operation Operation Remote controller Indoor Unit Set temp Ts Room temp Ta Correction of Hz signal l Detection of electromotive force of compressor motor winding Inverter output change commution timing change change of compressor speed e Back gt Next TOSHIBA Carrier Operation Pulse Modulation Value PMV Control Starring Up I Because of the varying pressures of the Initialize system Inverter type air conditioners use expansion valves with pulse modulation positon control Compressor ON Td releas SH control degree control T shes se eer cantio Defrost I Compressor Stop stop Move to Move to stop defrost position position _ n la 9 Next TOSHIBA gt Carrier Operation Pulse Modulation Value PMV Control 1 At start up the valve is initialized by moving until it hit stopper It then moves to the initial position Move to initial position At this time the click sound may
56. s easily implied as a perfect control of power It operates to reach maximum power rapidly and also maintains the desired temperature constantly by intelligently varying the electrical current frequency to modulate the rotation of the compressor As a result it is the solution that eliminates highly fluctuated temperature that you used to be uncomfortable with o Pulse Amplitude Modulation high power to ensure the fastest achievement of the setting temperature o PWM Pulse Width Modulation maximizes efficiency once the temperature has stabilized cer Traini MI I A Hybrid PWM PAM High power Gu High effciency Hybrid Inverter 49 Back Next TOSHIBA Carrier Inverter Basics HYBRID INVERTER TECHNOLOGY How does it work Toshiba Digital Hybrid Inverter integrates two distinct control modules to ensure constant natural comfort instantly achieved with maximum energy efficiency Upon starting the Pulse Amplitude Modulation PAM module sets a compressor at the maximum power providing fast cooling or heating in order to achieve the desired room temperature Subsequently the Pulse Width Modulation Room Temperature PWM module engages automatically to maintain the desired room temperature This is E done by smoothly modulating the compressor capacity to exactly match room load requirements This results s
57. s errors are cleared gt is indicated on the display of the remote control Caution Error code needs to be clear prior to performing diagnosis error code by using the remote control Otherwise the error code may be incorrect 3 Start operation again and wait until operation blinks 1 Hz 4 Start the Self diagnosis by using the remote control a ta ae Ier Hnara IAr met i Woe PAA F F Home Back Next TOSHIBA ry Services 1 Press CHK button with the tip of a pencil to set the remote control to the service mode 00 is indicated on the display of the remote control The timer lamp on the indoor unit blinks continuously 5 Hz E uper y ye Trainine introduction Installation User fraining Home Back Next TOSHIBA Carrier Services 2 Press 4 button the timer area to change the code forward or backward If there is no fault the indoor unit will beep once and the display of the remote control will change as follows KE 00 01 02 id 1E 33 The TIMER indicator of the indoor unit flashes continuously 5 times per second Check the unit with all 52 check codes 00 to 33 as shown in the
58. sor speed M Capacity control continues Q 49 Back Next TOSHIBA Carrier Operation Description of the Safety and Reliability Functions Discharge temperature release control Discharge temperature control prevents compressor temperature from getting high by monitoring the discharge pipe temperature Td sensor It works as follows 1 Td is less than 98 C compressor Td value Control operation HIT APNG UE BON ENDE Judges as error and stops the compressor 2 If the discharge pipe temperature 243 F 117 C is equal to or higher than 98 C but less 440 C Reduce the compressor speed than 105 C Compressor speed control Reduce slowly compressor speed will be controlled by capacity control 22 amp F 108 C but speed ramp up will be slower than 221 F 105 C Keeps the compressor speed operation is performed with lower speed than one 3 If the discharge pipe temperature commanded by the serial signal speed is slowly raised is equal to or higher than 105 C but lower up to the commanded speed than108 C the compressor speed will 2091987 2222222 Controlled by Discharge temperature Operates with speed commanded by the serial signal C control and will maintain the speed Q 49 Home Back Next TOSHIBA Carrier Operation Description of the Safety and Reliability Functions Discharge tempera
59. sor which measures the compressor discharge temperature 2 Tc sensor which measures the Indoor unit coil temperature 3 Te sensor measures the Outdoor unit coil temperature 4 Ta sensor measures the Room temperature Return air 5 To sensor measures the Outdoor temperature 6 Ts sensor measures the suction temperature to the compressor opslaan _ OUTDOOR UNIT igerant flow Cooling Refrigerant flow Heating Q 49 Home Back Next TOSHIBA gt Carrier Operation Wiring Diagram CDU RAS 09LAV UL m R221 PRESSURE SW COLOR IDENTIFICATION WHIL WHITE BLU BLUE BOW BROWN REED Gay Back Next TOSHIBA Carrier Operation Wiring Diagram F CU RA S 09L KV U L Indoor terminal block i POWER SUPPLY From outdoor Unit a Varistor Fine ilter Color indication BRW BROWN YEL YELLOW BLK BLACK RED RED BLU BLUE WHI WHITE GRN amp YEL GREEN amp YELLOW S O 2 gt o a Wireless Unit Assembly Case Study Introduction Installation User Training Services x FAW 9 0 Home Back Next 5 x Carrier Operation Wiring Diagram CDU RAS 12LAV UL RAS 15LAV UL RAS 17LAV UL RAS 22LAV UL eA FU ay ES ak Ps
60. tion Operation Description for the Self Cleaning Operation To set reset When the Self Cleaning function is set after 20 seconds there will be a beeping sound from the control unit 5 times and the operation lamp will blink If is has been reset after 20 seconds there will be a beeping sound but the operation lamp will not blink The self cleaning function is set as default from the factory it be stopped manually by pressing the on off button on the remote control twice Home Back Next TOSHIBA Carrier Operation Operation Description for the Auto restart Operation The indoor unit is equipped with an automatic restart function which allows the unit to restart with the set operating conditions in of a power failure The operation will resume three minutes after the power is restored There are two scenarios for the Auto restart operation l HB CASE 1 CASE 2 Scenario 1 is when the power failure occurs while the unit is Dowerfsllure Power falhire operational the AC will restart automatically 3 minutes after during operation during skippage power is restored Power Supply Es ES OFF Scenario 2 if the power failure occurs while the unit is TUM off the unit will not run after the power is restored Compressor Operation lamp will flash Operation Fan Display hae DISPLAY Flashing C Certified Installer Program 9 2 Home Ba
61. tions and components for easy maintenance Ur elite ye Case Study F3 m fa Iro b j am E om HILU DOCIUC III CAIEAZHIGL OAUII G VICES D rary Q O Home Back Next TOSHIBA Carrier User Training How to set reset basic functions How to adjust the louver Press the fix button for adjusting the horizontal louver Press swing to swing and press again to turn off Vertical louver are adjusted manually Next TOSHIBA Leading Innovation gt gt gt User Training eer 4 _ After cleaning the filter reset the filter lamp by Pressing down the reset button on the remote control for one second User iranin g Case Study Introduction Installation Operation oervices 2 FAQ FAQ Home Back Next TOSHIBA Carrier Operation Operation Description By A Gey 9 Case Study Operation Introduction Installation User Training 2381190 Services wy _ TOSHIBA Carrier Operation Sensors of Inverter Air Conditioner on the refrigeration cycle INDOOR UNIT Indoor heat 2 exchanger Inverter sensors that installers need to know 1 TD sen
62. to let your air conditioner do the thinking 5 _ One Touch My Comfort Toshiba Carrier conducted extensive research to assess customer preferences in order to offer a combination of features that are perfect for you Operating Mode The indoor unit will operate at Select from Auto Changeover the lowest noise level It shifts Cooling Drying dehumidification 5 Fan Only or Heating to super low fan speed thereby reducing the sound of the indoor unit by up to 3 dB _ Quiet nera i sser Eri title EAE Jo VIGES 49 Back Next TOSHIBA Carrier User Training Lr Swing amp Fix Louver Comfort Sleep vai 7 Choose your optimum airflow by For optimum comfort set the selecting from a range of Fixed temperature to rise by 1 C after mimm 8 and Swing louver positions 1 hour then another degree after 2 hours which will be maintained until morning Achieve energy savings of up to 25 compared with standard settings without sacrificing Setting to repeat every 24 hours Timer Set and off times or program z comfort ES Auto Diagnosis pem The 26 code Auto Diagnosis monitors main I FOWer Extra airflow to rapidly reach your desired temperature setting func
63. trol High indoor heat Exchanger temperature causes High supply air temperature e High refrigerant pressure op rec Limited to Min WD tap C Compressor overload and increased energy consumption 126 52 4 prevent above conditions Minimum air flow control controls 124 51 the minimum fan speed by dis e When the temperature of Indoor Heat Exchanger raise 108 42 above 108 the indoor fan speed will be calculated as 106 41 ima shown the graph M f the indoor heat exch t t ise ab eor e Indoor heat exchanger temperature raise above TC 42 10 x WD W8 W8 126 the indoor fan speed will be limited to WD Tap a up operation 1 in down operation 0 When the coil temperature drops below 124 F the indoor indoor fan speed will be calculated as shown in the graph m Minimum air flow rate control f the indoor heat exchanger temperature drops below than 106 F the fan speed will be set to normal AUTO 49 Back Next TOSHIBA Carrier Cold Draft Prevention cold draft prevention control prevents the indoor heat exchanger temperature from getting too low by stopping the operation of the indoor fan It also controls the indoor fan speed to be prevent blowing cold air from the Indoor unit The cold draft prevention control will control fan speed while the compressor is operating If the compressor is off the cold dr
64. ture release control 4 If the discharge pipe temperature is higher than or equal to 108 C but lower than Td value Control operation 112 discharge temperature control AFFF 117 C Judges as an error and stops the compressor will reduce operation hertz slowly Reduce the compressor speed 5 If the discharge pipe temperature is FU I Reduce slowly compressor speed is higher than or equal to 112 C but less 2265 108 than 117 C discharge temperature control 205 the compressor speed will reduce the compressor speed If the operation is performed with lower speed than one 6 If the discharge pipe temperature is more commanded by the serial signal speed is slowly raised than or equal to 117 discharge 208 F 98 C up to the commanded speed temperature control will turn off the Operates with speed commanded by the serial signal compressor immediately for 3 minutes After 3 minutes if the discharge pipe temperature is lower than 105 C compressor will restart again After restarting if Td become 117 C or more within 6 minutes the compressor will turn off again and the unit will stop and an error code be displayed by LED blinking Q 49 Home Back Next TOSHIBA Carrier Operation Description of the Safety and Reliability Functions Indoor Heat Exchanger Temperature Control This operation control applies for both cooling and heating modes During the cooling operat
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