Toshiba RAV-SM802AT-E manual

FILE NO. SVM-06012 SER VICE MANU AL AIR-CONDITIONER UNDER CEILING / CONSOLE TYPE R A V -SM562X T -E / R A V -SM562 A T -E R A V -SM802X T -E / R A V -SM802 A T -E April, 2006 R410A[...]

CONTENTS 1. SPECIFICA TIONS ............................................................................................................. 1 2. CONST R UCTION VIEWS ................................................................................................. 3 3. SYSTEM A TIC REFRIGER A TING CYCLE DI A GRAM ......................................[...]

– 1 – 1. SPECIFICA TIONS 1-1. Indoor Unit (Flexi T ype) Model R A V -SM562A T -E R A V -SM802A T -E Heating capacity (kW) 5.0 6.7 8.95-8.20 13.15-12.06 1.87 2.72 (W/W) 2.67 2.46 Energy efficiency class * D E Energy rating * 2.5 1.5 (A) 8.13-7.46 12.91-11.84 Pure white Appearance Model - P anel color - Height (mm) Width (mm) Outer Depth (mm) dim[...]

• Operation characteristic curve <Cooling> <Heating> • Capacity v ariation ratio accor ding to temperature <Cooling> <Heating> 0 02 0 15 40 60 70 80 100 2 4 6 8 10 12 14 Compressor speed (r ps) Current (A) • Conditions Indoor : DB27 ˚ C/WB19 ˚ C Outdoor : DB35 ˚ C Air flow : High Pipe length : 7.5m 230V RAV-SM562XT-[...]

2. CONST R UCTION VIEWS 2-1. Indoor Unit F ront panel Knock out system For stud bolt ( Ø 8 – Ø 10) For stud bolt ( Ø 6) Grille air inlet Back body Installation plate Mount plate M10 Suspention bolt Wireless remote control Knock out system 200 Min 1093 1015 742 450 20 20 330 165 Ø 74 70 Min 633 460 57 18 160 633 208 1093 UNDER CEILING & CO[...]

– 4 – 3. SYSTEMA TIC REFRIGERA TING CYCLE DIA GRAM 3-1. R A V -SM562X T -E / R A V -SM802XT-E Indoor unit Outdoor unit TCJ sensor Air heat e xchanger TC sensor Refrigerant pipe at liquid side Outer dia. ∅ B Refrigerant pipe at gas side Outer dia. ∅ A P ack ed valv e Outer dia. ∅ B P ack ed valv e Outer dia. ∅ A Max 30m Cooling Heating O[...]

Color Identification BRW RED WHI YEL BLU BLK GRY PNK ORN GRN&YEL GRN PUR : : : : : : : : : : : : BROWN RED WHITE YELL OW BLUE BL ACK GRA Y PINK ORANGE GREEN& YELL OW GREEN PURPLE SIMPLE CHECK POINTS FOR DIAGNOSING F AUL TS Diagnosis result Check to see if OPERA TION indicator goes on and off when the main switch or breaker is turned on. Che[...]

– 6 – 5. SPECIFICA TION OF ELECTRICAL P AR TS Indoor Unit No. P ar ts name T ype Specifications 1 F an motor (f or indoor) AFP-220-50-4A Output (Rated) 50 W , 220 – 240 V 2 G r ille motor MP35EA DC 12 V 3 Ther mo . sensor (T A-sensor) 550 mm 10 k Ω at 25 ° C 4 Heat e xchanger sensor (TC-sensor) ∅ 6 mm, 500 mm 10 k Ω at 25 ° C 5 Heat e[...]

– 7 – (5) After completion of installation work, check to make sure that there is no refrigeration gas leakage. If the refrigerant gas leaks into the room, coming into contact with fire in the f an-dr iv en heater , space heater , etc., a poisonous gas ma y occur . (6) When an air conditioning system charged with a large volume of refrigerant i[...]

– 8 – T able 6-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) R410A R22 1/4 6.35 0.80 0.80 3/8 9.52 0.80 0.80 1/2 12.70 0.80 0.80 5/8 15.88 1.00 1.00 b) Sock et joints Sock et joints are such that they are br azed f or connections, and used mainly f or thick pipings whose diameter is larger than 20 [...]

– 9 – A (mm) Con ventional flare tool Clutch type Wing nut type 1/4 6.35 0.8 0 to 0.5 1.0 to 1.5 1.5 to 2.0 3/8 9.52 0.8 0 to 0.5 1.0 to 1.5 1.5 to 2.0 1/2 12.70 0.8 0 to 0.5 1.0 to 1.5 2.0 to 2.5 5/8 15.88 1.0 0 to 0.5 1.0 to 1.5 2.0 to 2.5 T able 6-2-3 Dimensions related to flare processing f or R410A Nominal diameter Outer diameter (mm) Thic[...]

– 10 – (2) Flare connecting procedures and precautions a) Make sure that the flare and union por tions do not hav e any scar or dust, etc. b) Correctly align the processed flare surf ace with the union axis. c) Tighten the flare with designated torque by means of a torque wrench. The tightening torque f or R410A is the same as that for conv ent[...]

– 11 – 6-3. T ools 6-3-1. Required tools The ser vice por t diameter of pack ed valv e of the outdoor unit in the air conditioner using R410A is changed to pre vent mixing of other refrigerant. T o reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare nut (F or ∅ 12.70 copper pipe) of the [...]

– 12 – 6-4. Recharging of Refrigerant When it is necessary to recharge refr igerant, charge the specified amount of ne w refr igerant according to the f ollo wing steps. Recov er the refr igerant, and check no refrigerant remains in the equipment. Connect the charge hose to pac ked v alve ser vice por t at the outdoor unit ’ s gas side. Conne[...]

– 13 – 1 Be sure to make setting so that liquid can be charged. 2 When using a cylinder equipped with a siphon, liquid can be charged without tur ning it upside down. It is necessar y f or charging refr igerant under condition of liquid because R410A is mix ed type of refrigerant. Accordingly , when charging refrigerant from the refr igerant cy[...]

– 14 – (2) Characteristics required for flux • Activ ated temperature of flux coincides with the brazing temperature . • Due to a wide eff ective temper ature range, flux is hard to carbonize . • It is easy to remov e slag after brazing. • The corrosiv e action to the treated metal and brazing filler is minimum. • It e xcels in coatin[...]

– 15 – 7. CONTROL BLOCK DIA GRAM REMO TE CONTROL Remote Control Operation (START/STOP) Operation Mode Selection AUTO, COOL, DRY, HEAT, FAN ONLY Temperature Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver Auto Swing Louver Direction Setting ECO Hi power Filter Reset Infrared Rays Heat Exchanger Sensor (TC) Heat Exchanger Se[...]

– 16 – 8. OPERA TION DESCRIPTION 8-3. Air volume contr ol (1) Operation with [HIGH (H)], [MED (M)], [LO W (L)], or [A UT O] mode is perf or med by the command from the remote control. (2) When [F AN] button is set to A UTO , the indoor f an motor operates as shown in Fig. 8-3-1, Fig. 8-3-2 and T able 8-3-1. <COOL> NO TE : *1: The v alues [...]

– 17 – LO W + = MED + = LO W+MED 2 MED+HIGH 2 MODEL R A V -SM562X T -E R A V -SM802X T -E Motor speed Air flow le vel Motor speed Air flow lev el (rpm) (m 3 /h) (r pm) (m 3 /h) Cooling HIGH 1060 800 1190 900 and MED 950 690 1010 750 F an only LOW 800 580 850 650 HIGH 1120 830 1300 980 Heating MED 970 730 1070 800 LOW 820 600 860 650 [FAN AUTO] [...]

– 18 – 8-5. Freeze preventive contr ol (Low temperature release) The cooling operation (including Dry operation) is perf or med as f ollows based on the detected temperature of Tc sensor or Tcj sensor . When [J] zone is detected f or T1 minutes (Follo wing figure), the commanded frequency is decreased from the real operation frequency . After t[...]

– 19 – 8-9. Auto Restart Function The indoor unit is equipped with an automatic restar ting function which allows the unit to restar t operating with the set operating conditions in the e vent of power supply being accidentally shut do wn. The operation will resume without warning three minutes after power is restored. This function is not set [...]

– 20 – 8-9-2. How to cancel auto restart function T o cancel auto restar t function, proceed as f ollows: Repeat the setting prodedure: the unit receives the signal and beeps three times. The unit will be required to be tur ned on with the remote control after the main pow er supply is tur ned off . When the unit is on standby (Not operating) W[...]

– 21 – 9. T R OUBLESHO O TING 9-1. Summary of T r ou b leshooting 9-1-1. Be f ore t r ou b leshooting (1) Required tools/instr uments • e and d scre wdr iv ers, spanners, r adio cutting pliers, nippers , etc. • T ester , ther mometer , pressure gauge, etc. (2) Confir mation points bef ore check 1 The f ollowing operations are normal. a) Com[...]

– 22 – 9-2. Self-Di a gnosis b y Remote Cont r ol (Che c k Code) (1) If the lamps are indicated as shown 00 to 03 in T a b le 9 -1-1, e xchanger the self-diagnosis b y the remote control. (2) When the remote control is set to the ser vice mode, the indoor controller diagnoses the operation condition and indicate the inf or mation of the self-di[...]

– 23 – The indoor thermo sensor (T A) is defectiv e. Disconnection or short-circuit The indoor heat exchanger sensor (TC) is defectiv e. Disconnection or short-circuit The indoor fan motor or its circuit is defectiv e. The par t other than the abov e par ts on the indoor P .C. board is defectiv e. EEPROM access error IOL operation The variation[...]

– 24 – The serial signal is not output from outdoor unit to indoor unit. • Miscabling of inter-unit cab les • Defectiv e serial sending circuit on outdoor P .C. board • Defectiv e serial receiving circuit on outdoor P .C. board • Compressor case thermo operation BUS communication circuit error * BUS communication was interrupted over th[...]

– 25 – Inverter ov er-current protective circuit operates. (For a short time) Error on current detection circuit • Current value is high at A C side ev en while compressor stops. • Phase of power supply is missed. Coming-off, disconnection or short of outdoor temp sensor Coming-off, disconnection or short of outdoor temp sensor Compressor d[...]

– 26 – Relational graph of temperature sensor resistance v alue and temperature Resistance (k Ω ) (50 ° C or lower) Resistance (k Ω ) (50 ° C or higher) Temperature [ ° C] Caracteristics-4 TD sensor 200 100 20 10 0 0 50 100 Caracteristics-1 Resistance (k Ω ) Resistance (k Ω ) Temperature [ ° C] Temperature [ ° C] Caracteristics-2 2[...]

– 27 – 10-1. Indoor Unit No. P ar t name Procedures Remarks 1 <How to remo ve the Air inlet grille> 1) Stop the operation of the Air conditioner and turn off its main power supply . 2) Open the Air inlet grille with both hands. 3) Unfasten 3 scre ws (about two to three rounds) f or fixing the P anel ar ms. 4) Mov e the Air inlet grille to[...]

– 28 – No. P ar t name Procedures Remarks 2 <How to remo ve the Front panel> 1) Remov e the Air inlet grille. ( 1 ) 2) In case of the Drain hose is installed through the F ront panel. : Remov e the Drain band from the F ront panel. : Cut aw ay the Opening base f or piping from F ront panel and keep parts. 3) Open 3 Cap screws and remo ve [...]

– 29 – No. P ar t name Procedures Remarks 2 6) Remove both side hooks and remo v e the F ront panel b y turn to air inlet par t direction. <How to install the Fr ont panel> 1) In case of the Drain hose installation through the F ront panel, install the opening base f or piping in the Back body b y a screw (M4 x 12). Prepare it by y oursel[...]

– 30 – No. P ar t name Procedures Remarks 3 7) Remov e 7 screws and remov e the Drain pan assembly . 4 <How to remo ve the Electrical par ts assembl y> 1) Remov e the Air inlet grille, the F ront panel and the Drain pan assembly . ( 1 , 2 , 3 ) 2) Remov e the T er minal cover . 3) Unf asten the screw of Cord clamp and disconnect the conne[...]

– 31 – No. P ar t name Procedures Remarks 5 7) Remove 2 scre ws and remove the refrigeration assembly with pushing it to right hand. 6 <How to remo ve the Multiblade fan and Fan motor> 1) Remove the Air inlet g rille and the F ront panel. ( 1 , 2 ) 2) Disconnect 2 connectors. 3) Remove the F an covers . 4) Remove the Motor band with holdi[...]

– 32 – 11. EXPLODED VIEWS AND P A R TS LIST 11-1. Indoor Unit (E- P a r ts Assy) Location P ar t Description No. No. 401 43T69 564 PC BOARD (R A V -SM 802 X T -E) 401 43T69 565 PC B OARD (R A V -SM 562 X T -E) 402 43T50004 SENSOR; HEAT EXCHANGER 403 43T60002 T ERMINAL BLOCK; 3P 404 43T62003 C ORD CLAMP 405 43T69315 D ISPLAY UNIT Location P ar t[...]

– 33 – 11-2. Indoor Unit Location P ar t Description No. No. 201 43T09 379 AIR-GRILLE 202 43T00 445 PANEL ARM ASSY 203 43T00 446 FRONT PANEL ASSY 204 43T01 306 M ARK 205 43T79 312 D RAIN BAND 206 43T80302 A IR FILTER 207 43T00 433 C AP S CREW C 208 43T00 434 C AP S CREW LR 209 43T20303 F AN C OVER 210 43T203 18 M OTOR BAND ASSY 211 43T20 317 FA[...]

– 86 – TOSHIBA CARRIER (THAILAND) CO., L TD. 144/9 MOO 5, BANGKADI INDUSTRIAL P ARK, TIV ANON ROAD, T AMBOL BANGKADI, AMPHUR MUANG, P A THUMTHANI 12000, THAILAND.[...]