User manual TOSHIBA RAV-450CHJE SERVICE MANUAL

[. . . ] Tools exclusive for R410A (The following tools for R410A are required. ) Tools whose specifications are changed for R410A and their interchangeability R410A air conditioner installation Whether Existence of conventional new equipment equipment for R410A can be used Yes Yes Yes Yes Yes Yes Yes Yes (Note 2) *(Note 1) *(Note 1) *(Note 1) Conventional air conditioner Whether new equipment can be used with conventional refrigerant No Used tool Usage 1 2 3 4 5 6 7 8 9 10 Pipe flaring Flate tool Copper pipe gauge Flaring by for adjusting conventional flare tool projection margin Torque wrench Gauge maniford Charge hose Vacuum pump adapter Connection of flarenut Evacuating, refrigerant charge, run check, etc. Vacuum evacuating Electronic balance for Refrigerant charge refrigerant charging Refrigerant cylinder Leakage detector Charging cylinder Refrigerant charge Gas leakage check Refrigerant charge (Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection margin is necessary. For this adjustment, a copper pipe gauge, etc. (Note 2) Charging cylinder for R410A is being currently developed. 2. [. . . ] Cable trouble of compressor (Phase missing) 3. Phase-missing operation of power supply ( 3phase model) 1. Start operating but soon stop IPDU check 2. Phase-missing operation of power supply Check for 3-phase power voltage, wiring cable check H02 All off H03 All off L29 Error on outdoor unit, etc. Communication error between CDB and IPDU (Coming-off of connector) All off Heat sink temperature error (Temperature over specified value was detected. ) Phase detection protective circuit operated. (Normal model) Discharge temperature error Discharge temperature over the specified value was detected. High-pressure protection error by TE sensor (Temperature over the specified value was detected. ) Outdoor DC FM error 1. Abnormal overload operation of refrigerating cycle L31* Continuance 1. Phase order of power supply (Reverse phase) /Missing phase check (Compressor 2. Overload operation of refrigerating cycle 2. Check for outdoor temperature sensor (TE) 3. error DC outdoor fan error 7 Communication error between IPDU OFF OFF OFF 8 High-pressure release operation 9 Case thermo. operation 10 EEPROM error 11 G-Tr short-circuit protection 12 Detection circuit error IPDU side 13 Current sensor error 14 Phase-missing detection H03 15 Compressor lock error 16 Compressor breakdown 17 Tin sensor error H02 H01 L29 SW800 LED 8 Indoor unit PC board exchange method (Cassette & Duct Type) In the failed PC board, an important data is memorized in the EEPROM (memory) part. The data is also needed for the exchanged PC board. You can check the memorized data by wired remote controller. You can not check the memorized data by a EEPROM failure. Read the data power OFF Change PC board power ON Write the read data Case 2. Change PC board power ON Write the data Power reset Power reset *all indoor unit when Gr operation 1. How to read the set data in the EEPROM a. Push (SET)+(CL)+( ) button concurrently for more than 4sec. Push (UNIT) button to select the set unit when Gr operation. Read the set data of each CODE by pushing "TEMP SET" / button. [. . . ] board (around ance EEPROM) 08 09 0C "OPERATION" lamp flash (5kHz) TA (Room temp sensor) error TC (Room temp sensor) error TCJ (Room temp sensor) error Indoor fan error (Abnormal frequency) Trouble on other indoor P. C. boards 0d 0F "OPERATION" lamp flash (5kHz) 11 12 Error code checked by outdoor unit (High Wall Type) Indoor panel indicators Check code Primary cause Inverter over-current protective circuit operates. (Short time) 14 Unit status Judgment and Action 1. Restart but stop. board. "OPERATION " and "PRE, DEF" lamp flash(5kHz) 17 Current-detect circuit error (1). [. . . ]