User manual TOSHIBA RAV-1003CHE8 SERVICE MANUAL

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[. . . ] WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPECIFICATIONS OF ELECTRICAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REFRIGERANT R410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDOOR UNIT CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Check central control network address setting. E01 *2 Indicated when an error is detected E02 E09 OFF (auto reset) *Operation continues under central control Multiple remote controller OFF (Follower R/C headers (detected by R/C) continues operation) Duplication of indoor unit collective address during communication of central control system (detected by indoor unit/ central controller) Failure of central control communication circuit (detected by central controller) OFF (auto reset) Indicated when an error is detected Indicated when an error is detected L20 Central controller L20 ­ *3 Central controller (T ransmission) C05 (Reception) C06 ­ Central controller P30/b7 Indicated when an error is detected Operation Indicated when an continues (following error is detected R/C) 1. Check communication line, wrong connection, and indoor unit power supply. Check the unit's check code with remote controller Failure of indoor unit group Continue/OFF (depending on follower unit. situation) Indicated when an error is detected *2 No check code can be indicated by wired remote controller. (Normal operation of air conditioner cannot be controlled by wired remote controller. ) Check codes are indicated by the lamps for wireless models. *3 This is an error related to communication of remote controller (A, B) or central control system (TCC-LINK U3, U4). Remote controller indicates E01, E02, E03, E09, E18 or no code according to situation. ­ 30 ­ ON, Blinking, OFF, Alternate: Two LEDs blink alternately, Simultaneous: Two LEDs blink simultaneously (Detected by indoor unit) A/C operation Main faulty location Auto reset Operation continuation Indoor unit ­ R/C communication error Indoor unit ­ out door unit serial communication error Duplication of indoor unit address Communication error between indoor unit MCUs Communication error between header and follower indoor units Indoor unit heat exchange sensor TCJ Indoor unit heat exchange sensor TC Indoor unit room temp. sensor TA Indoor unit other boards Duplication of indoor group header unit setting Group line in individual indoor unit Indoor group address not set Indoor unit capacity not set Duplication of central control refrigerant line address External alarm input into indoor unit (interlock) Indoor unit AC fan Indoor unit water overflow Indoor unit DC fan Four-way valve system Other indoor unit errors When float switch is turned on When indoor unit DC fan alarm (overcurrent, locking, etc. ) is detected When an alarm is detected during heating due to temperature drop of heat exchange sensor Follower units in the group are disabled due to alarm (E03/L03/L07/L08) of header unit Alarm stop by external alarm input (CN80) When indoor unit AC fan alarm is detected (Fan motor thermal relay is activated. ) Duplicated central control refrigerant line address is set. When indoor group address is not set When multiple header units exist in the group When there is at least one group connection indoor unit in individual indoor unit Failure of EEPROM (Other errors are also detected in some cases. Auto address repeated with no other errors. ) When open-circuit or short-circuit of TA is detected When open-circuit or short-circuit of TC is detected When open-circuit or short-circuit of TCJ is detected When communication between header and follower indoor units is disabled When communication between main motor microcomputers is abnormal When same address as mine is detected When indoor unit ­ out door unit serial communication is abnormal No signal from remote controller (no communication with central controller system) Description of failures Check code Lamp indication TCC-LINK central control and remote controller Block indication OPERATION TIMER PREPARING Blinking E03 E04 E08 E10 E18 F01 Alternate F02 Alternate F10 Alternate F29 Simultaneous L03 Simultaneous Troubleshooting (Continued) L07 Simultaneous Check Code Table (Indoor Unit) L08 Simultaneous L09 Simultaneous L20 Simultaneous L30 Simultaneous P01 Alternate P10 Alternate P12 Alternate ­ 31 ­ Main faulty location No header R/C, R/C reception error R/C transmission error Duplication of header R/C Main faulty location Central control system transmission error Central control system reception error General equipment control I/F total alarm Group follower unit error P19 Alternate P31 Alternate :When this alarm is detected before checking group configuration and address at power on, the unit enters auto address setting mode automatically. A/C operation Description of failures When signals cannot be received from indoor unit or when header R/C is not set (including two R/Cs) When signal transmission to indoor unit is disabled When two remote controllers are set as header by double R/C control (Header unit stops alarm, and follower continues operation. ) Auto reset ­ ­ Operation continuation ­ ­ (Detected by remote controller) Check code Lamp indication Remote controller Block indication OPERATION TIMER PREPARING Blinking E01 E02 E09 (Detected by central controller) A/C operation Description of failures When transmission of central control signals is disabled or when there are multiple central controllers with same address (AI-NET) When signal transmission to indoor unit is disabled A device connected to general equipment control interface (for TCCLINK/AI-NET only) is abnormal. Freezing cycle overload operation H02 H03 Indicated when an error is detected H06*1 OFF Indicated when an error is detected L29 OFF Indicated when an error is detected L31*1 Operation continued (compressor OFF) OFF Indicated when an error is detected 1. Overcurrent protection circuit operation of outdoor unit fan driver 3. The circuit is activated even after compressor's 3P connector is disconnected. Check outdoor unit CDB board. P03 Abnormal discharge temperature (over specified value) Indicated when an error is detected Indicated when an error is detected P04 P22 Failure of high-pressure protection circuit OFF (Temperature over specified value detected by TE sensor) High-pressure switch (normal models) OFF Failure of outdoor unit DC fan Indicated when an error is detected P26 P29 OFF Inverter overcurrent protection circuit activated (short time) Main circuit short voltage operation OFF Failure of IPDU position detect circuit Improper mounting, disconnection OFF or short-circuit of outdoor unit temp. sensor TD Improper mounting, disconnection OFF or short-circuit of outdoor unit temp. sensor TE, TS Improper mounting, disconnection or short-circuit of outdoor unit outside air temp. sensor TO Operation continued Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected F04 F06 F08 *1 ROA-P*** is not detected by 1HS models. Fan continues rotating in a failure mode detected by outdoor unit because there is no communication between outdoor unit and follower indoor unit in twin group. ­ 34 ­ Troubleshooting (Continued) 2. Troubleshooting by Remote Controller Check Indication Main Remote Controller (RBC-AMT31E) (1) Checking When an error occurs in the air conditioner, a check code and an indoor unit number appear on the LCD of remote controller. If indication disappears, check errors following "Checking Error Log" below. Check code Faulty indoor unit No. (2) Checking Error Log When an error occurs in the air conditioner, error log can be checked following the steps below. Error log can be checked in both operation ON and OFF states. Step Operation Press [SET] and [TEST] at the same time for 4 seconds or more. [. . . ] (* It does not mean an indoor unit that communicates with O/U. ) Operation mode and setting temperature range (except flap air flow control) of header unit are reflected on the LCD of remote controller. Follower indoor unit (=2) : Indoor units except header unit in group operation. It does not control communication with remote controller in principle (except response to alarm/service data request). Main unit : In a minimal configuration of refrigerant cycle such as twin, triple or double twin, an indoor unit which communicates with O/U among those with same refrigerant line address. [. . . ]

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