Instruction/ maintenance manual of the product RAV-SM802XT-E Toshiba
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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 .......................................................................................
– 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.
• 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.
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 bo.
– 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.
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.
– 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 .
– 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 .
– 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.
– 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.
– 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.
– 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.
– 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.
– 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.
– 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.
– 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 Set.
– 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.
– 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 8.
– 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 .
– 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.
– 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 .
– 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.
– 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.
– 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 .
– 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 .
– 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.
– 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 .
– 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.
– 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.
– 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).
– 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 .
– 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.
– 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 -S.
– 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 .
– 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.
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