Toshiba RAS-3M26GAV-E Service Manual Download Page 103

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11-8-2. P.C. Board Layout

GND

+12V

+5V

100

Resistance value (k

)

Temperature (˚C)

: Discharge temp. sensor

: Room temp. sensor

: Heat exchanger temp. sensor

TO : Outdoor temp. sensor
TE

: Outdoor heat exchanger temp. sensor

: Suction temp. sensor

TGa : A room Gas side temp. sensor
TGb : B room Gas side temp. sensor
TGc : C room Gas side temp. sensor
TGd : D room Gas side temp. sensor

TA, TC, TO, TGa, TGb, TGc, TGd, TE, TS

[1] Sensor characteristic table

Summary of Contents for RAS-3M26GAV-E

Page 1: ...INTED IN JAPAN Dec 2005 ToMo SERVICE MANUAL SPLIT TYPE RAS B10GKVP E RAS B13GKVP E RAS B16GKVP E RAS 4M27GAV E RAS M10GKCVP E RAS M13GKCVP E RAS M16GKCVP E RAS 4M27GACV E RAS B10GKVP E RAS B13GKVP E RAS B16GKVP E RAS 3M26GAV E ...

Page 2: ...N VIEWS 32 5 WIRING DIAGRAM 34 6 SPECIFICATIONS OF ELECTRICAL PARTS 36 7 REFRIGERANT CYCLE DIAGRAM 37 8 CONTROL BLOCK DIAGRAM 45 9 OPERATION DESCRIPTION 48 10 INSTALLATION PROCEDURE 72 11 HOW TO DIAGNOSE THE TROUBLE 87 12 HOW TO REPLACE THE MAIN PARTS 107 13 EXPLODED VIEWS AND PARTS LIST 123 ...

Page 3: ... those used for the conventional refrigerant units Accordingly special tools are required for the new refrigerant R410A units For connecting pipes use new and clean piping materials with high pressure fittings made for R410A only so that water and or dust does not enter Moreover do not use the existing piping because there are some problems with pressure fittings and possible impurities in existin...

Page 4: ...a qualified electrician in accordance with the Installation Manual Make sure the air conditioner uses an exclusive circuit An insufficient circuit capacity or inappropriate installation may cause fire When wiring use the specified cables and connect the terminals securely to prevent external forces applied to the cable from affecting the terminals Be sure to provide grounding Do not connect ground...

Page 5: ...e service manual of each indoor unit Indoor unit RAS M10GDV E RAS M10GDCV E RAS M13GDV E RAS M13GDCV E RAS M16GDV E RAS M16GDCV E RAS M10GKV E RAS M10GKCV E RAS M13GKV E RAS M13GKCV E RAS M16GKV E RAS M16GKCV E File No A05 010 TBA Type Heat pump Cooling only Outdoor unit RAS 3M26GAV E RAS 4M27GAV E RAS 4M27GACV E Indoor unit RAS B10GKVP E RAS B13GKVP E RAS B16GKVP E RAS M10GKV E RAS M13GKV E RAS M...

Page 6: ... type with DC inverter variable speed control Compressor Model DA220A2F 20L Fan motor output W 60 Air flow rate m h High 3000 Medium 2800 Outdoor unit Type Flare connection Unit model RAS B10GKVP E RAS B13GKVP E RAS B16GKVP E Indoor unit Liquid side Gas side Ø6 35 Ø9 52 Ø6 35 Ø9 52 Ø6 35 Ø12 7 Unit model RAS 4M27GAV E RAS 3M26GAV E A unit liquid side Gas side Ø6 35 Ø12 7 Ø6 35 Ø12 7 B unit liquid ...

Page 7: ...ow rate m h 550 560 640 Unit model RAS 4M27GACV E Height mm 795 Width mm 900 Dimension Depth mm 320 Net weight kg 63 Motor output W 2000 Type Twin rotary type with DC inverter variable speed control Compressor Model DA220A2F 20L Fan motor output W 60 Air flow rate m h High 3000 Medium 2800 Outdoor unit Type Flare connection Unit model RAS M10GKCVP E RAS M13GKCVP E RAS M16GKCVP E Indoor unit Liquid...

Page 8: ...0 2 10 7 7 4 0 to 8 5 2410 960 to 2790 11 18 4 85 to 12 94 48 13 13 10 2 82 2 82 2 06 7 7 4 0 to 8 5 2410 960 to 2790 11 18 4 85 to 12 94 48 16 13 10 3 22 2 65 1 93 7 8 4 1 to 8 6 2430 970 to 2810 11 27 4 90 to 13 03 48 13 13 13 2 60 2 60 2 60 7 8 4 1 to 8 6 2430 970 to 2810 11 27 4 90 to 13 03 48 16 16 10 3 04 3 04 1 82 7 9 4 1 to 8 7 2440 970 to 2830 11 32 4 90 to 13 13 48 16 13 13 2 99 2 46 2 4...

Page 9: ... 4 64 to 12 38 48 13 13 10 2 82 2 82 2 06 7 7 4 0 to 8 5 2410 960 to 2790 10 69 4 64 to 12 38 48 16 13 10 3 22 2 65 1 93 7 8 4 1 to 8 6 2430 970 to 2810 10 78 4 69 to 12 47 48 13 13 13 2 60 2 60 2 60 7 8 4 1 to 8 6 2430 970 to 2810 10 78 4 69 to 12 47 48 16 16 10 3 04 3 04 1 82 7 9 4 1 to 8 7 2440 970 to 2830 10 83 4 69 to 12 56 48 16 13 13 2 99 2 46 2 46 7 9 4 1 to 8 7 2440 970 to 2830 10 83 4 69...

Page 10: ... 4 44 to 11 86 48 13 13 10 2 82 2 82 2 06 7 7 4 0 to 8 5 2410 960 to 2790 10 25 4 44 to 11 86 48 16 13 10 3 22 2 65 1 93 7 8 4 1 to 8 6 2430 970 to 2810 10 33 4 49 to 11 95 48 13 13 13 2 60 2 60 2 60 7 8 4 1 to 8 6 2430 970 to 2810 10 33 4 49 to 11 95 48 16 16 10 3 04 3 04 1 82 7 9 4 1 to 8 7 2440 970 to 2830 10 37 4 49 to 12 03 48 16 13 13 2 99 2 46 2 46 7 9 4 1 to 8 7 2440 970 to 2830 10 37 4 49...

Page 11: ...90 2 16 to 12 80 48 13 13 10 3 11 3 11 2 49 8 7 2 0 to 10 5 2350 380 to 2760 10 90 2 16 to 12 80 48 16 13 10 3 34 3 03 2 43 8 8 2 0 to 10 6 2400 380 to 2780 11 13 2 16 to 12 89 48 13 13 13 2 93 2 93 2 93 8 8 2 0 to 10 6 2400 380 to 2780 11 13 2 16 to 12 89 48 16 16 10 3 26 3 26 2 37 8 9 2 0 to 10 7 2450 380 to 2790 11 36 2 16 to 12 94 48 16 13 13 3 16 2 87 2 87 8 9 2 0 to 10 7 2450 380 to 2790 11 ...

Page 12: ... 10 43 2 07 to 12 24 48 13 13 10 3 11 3 11 2 49 8 7 2 0 to 10 5 2350 380 to 2760 10 43 2 07 to 12 24 48 16 13 10 3 34 3 03 2 43 8 8 2 0 to 10 6 2400 380 to 2780 10 65 2 07 to 12 33 48 13 13 13 2 93 2 93 2 93 8 8 2 0 to 10 6 2400 380 to 2780 10 65 2 07 to 12 33 48 16 16 10 3 26 3 26 2 37 8 9 2 0 to 10 7 2450 380 to 2790 10 87 2 07 to 12 38 48 16 13 13 3 16 2 87 2 87 8 9 2 0 to 10 7 2450 380 to 2790...

Page 13: ...9 99 1 98 to 11 73 48 13 13 10 3 11 3 11 2 49 8 7 2 0 to 10 5 2350 380 to 2760 9 99 1 98 to 11 73 48 16 13 10 3 34 3 03 2 43 8 8 2 0 to 10 6 2400 380 to 2780 10 20 1 98 to 11 82 48 13 13 13 2 93 2 93 2 93 8 8 2 0 to 10 6 2400 380 to 2780 10 20 1 98 to 11 82 48 16 16 10 3 26 3 26 2 37 8 9 2 0 to 10 7 2450 380 to 2790 10 42 1 98 to 11 86 48 16 13 13 3 16 2 87 2 87 8 9 2 0 to 10 7 2450 380 to 2790 10...

Page 14: ...18 4 85 to 12 94 48 13 13 10 2 82 2 82 2 06 7 7 4 0 to 8 5 2410 960 to 2790 11 18 4 85 to 12 94 48 16 13 10 3 22 2 65 1 93 7 8 4 1 to 8 6 2430 970 to 2810 11 27 4 90 to 13 03 48 13 13 13 2 60 2 60 2 60 7 8 4 1 to 8 6 2430 970 to 2810 11 27 4 90 to 13 03 48 16 16 10 3 04 3 04 1 82 7 9 4 1 to 8 7 2440 970 to 2830 11 32 4 90 to 13 13 48 16 13 13 2 99 2 46 2 46 7 9 4 1 to 8 7 2440 970 to 2830 11 32 4 ...

Page 15: ...9 4 64 to 12 38 48 13 13 10 2 82 2 82 2 06 7 7 4 0 to 8 5 2410 960 to 2790 10 69 4 64 to 12 38 48 16 13 10 3 22 2 65 1 93 7 8 4 1 to 8 6 2430 970 to 2810 10 78 4 69 to 12 47 48 13 13 13 2 60 2 60 2 60 7 8 4 1 to 8 6 2430 970 to 2810 10 78 4 69 to 12 47 48 16 16 10 3 04 3 04 1 82 7 9 4 1 to 8 7 2440 970 to 2830 10 83 4 69 to 12 56 48 16 13 13 2 99 2 46 2 46 7 9 4 1 to 8 7 2440 970 to 2830 10 83 4 6...

Page 16: ...5 4 44 to 11 86 48 13 13 10 2 82 2 82 2 06 7 7 4 0 to 8 5 2410 960 to 2790 10 25 4 44 to 11 86 48 16 13 10 3 22 2 65 1 93 7 8 4 1 to 8 6 2430 970 to 2810 10 33 4 49 to 11 95 48 13 13 13 2 60 2 60 2 60 7 8 4 1 to 8 6 2430 970 to 2810 10 33 4 49 to 11 95 48 16 16 10 3 04 3 04 1 82 7 9 4 1 to 8 7 2440 970 to 2830 10 37 4 49 to 12 03 48 16 13 13 2 99 2 46 2 46 7 9 4 1 to 8 7 2440 970 to 2830 10 37 4 4...

Page 17: ...3 92 to 11 92 48 16 16 3 60 3 60 7 2 3 2 to 7 5 2550 700 to 2750 11 83 3 98 to 12 76 48 3 units 10 10 10 2 47 2 47 2 47 7 4 3 8 to 8 2 2230 950 to 2720 10 34 4 80 to 12 62 48 13 10 10 3 01 2 20 2 20 7 4 3 9 to 8 3 2230 950 to 2750 10 34 4 80 to 12 76 48 16 10 10 3 36 2 02 2 02 7 4 4 0 to 8 5 2230 950 to 2820 10 34 4 80 to 13 08 48 13 13 10 2 71 2 71 1 98 7 4 4 0 to 8 5 2230 950 to 2820 10 34 4 80 ...

Page 18: ...3 13 3 15 3 15 6 3 2 9 to 6 9 2040 670 to 2400 9 05 3 64 to 10 65 48 16 13 3 73 3 07 6 8 3 0 to 7 2 2320 690 to 2570 10 29 3 75 to 11 40 48 16 16 3 60 3 60 7 2 3 2 to 7 5 2550 700 to 2750 11 31 3 80 to 12 20 48 3 units 10 10 10 2 47 2 47 2 47 7 4 3 8 to 8 2 2230 950 to 2720 9 89 4 59 to 12 07 48 13 10 10 3 01 2 20 2 20 7 4 3 9 to 8 3 2230 950 to 2750 9 89 4 59 to 12 20 48 16 10 10 3 36 2 02 2 02 7...

Page 19: ...3 13 3 15 3 15 6 3 2 9 to 6 9 2040 670 to 2400 8 67 3 49 to 10 20 48 16 13 3 73 3 07 6 8 3 0 to 7 2 2320 690 to 2570 9 86 3 59 to 10 93 48 16 16 3 60 3 60 7 2 3 2 to 7 5 2550 700 to 2750 10 84 3 65 to 11 69 48 3 units 10 10 10 2 47 2 47 2 47 7 4 3 8 to 8 2 2230 950 to 2720 9 48 4 40 to 11 56 48 13 10 10 3 01 2 20 2 20 7 4 3 9 to 8 3 2230 950 to 2750 9 48 4 40 to 11 69 48 16 10 10 3 36 2 02 2 02 7 ...

Page 20: ... 95 3 95 7 9 1 5 to 10 1 2380 320 to 3230 11 04 1 94 to 14 98 48 16 13 4 35 3 95 8 3 1 5 to 10 2 2560 320 to 3240 11 87 1 94 to 15 03 48 16 16 4 30 4 30 8 6 1 5 to 10 2 2700 320 to 3250 12 52 1 94 to 15 07 48 3 units 10 10 10 2 87 2 87 2 87 8 6 2 0 to 10 4 2300 380 to 2750 10 67 2 16 to 12 76 48 13 10 10 3 35 2 68 2 68 8 7 2 0 to 10 5 2360 380 to 2760 10 95 2 16 to 12 80 48 16 10 10 3 59 2 61 2 61...

Page 21: ... 95 3 95 7 9 1 5 to 10 1 2380 320 to 3230 10 56 1 86 to 14 33 48 16 13 4 35 3 95 8 3 1 5 to 10 2 2560 320 to 3240 11 36 1 86 to 14 37 48 16 16 4 30 4 30 8 6 1 5 to 10 2 2700 320 to 3250 11 98 1 86 to 14 42 48 3 units 10 10 10 2 87 2 87 2 87 8 6 2 0 to 10 4 2300 380 to 2750 10 20 2 07 to 12 20 48 13 10 10 3 35 2 68 2 68 8 7 2 0 to 10 5 2360 380 to 2760 10 47 2 07 to 12 24 48 16 10 10 3 59 2 61 2 61...

Page 22: ... 95 3 95 7 9 1 5 to 10 1 2380 320 to 3230 10 12 1 78 to 13 73 48 16 13 4 35 3 95 8 3 1 5 to 10 2 2560 320 to 3240 10 88 1 78 to 13 78 48 16 16 4 30 4 30 8 6 1 5 to 10 2 2700 320 to 3250 11 48 1 78 to 13 82 48 3 units 10 10 10 2 87 2 87 2 87 8 6 2 0 to 10 4 2300 380 to 2750 9 78 1 98 to 11 69 48 13 10 10 3 35 2 68 2 68 8 7 2 0 to 10 5 2360 380 to 2760 10 03 1 98 to 11 73 48 16 10 10 3 59 2 61 2 61 ...

Page 23: ...th 20m 110 105 100 95 90 85 80 0 10 20 30 40 50 60 70 80 Total pipe length m Heating capacity ratio Conditions Indoor DB20 C Outdoor DB7 C WB6 C Indoor air flow High 4 units operating Standard pipe length 20m 50 60 70 80 90 100 110 32 33 34 35 36 37 38 39 40 41 42 43 44 Outdoor temp C Cooling capacity ratio Conditions Indoor DB27 C WB19 C Indoor air flow High Pipe length 5m x 4 4 units operating C...

Page 24: ...e pressure in the refrig eration cycle may become abnormally high so that a rupture or personal injury may be caused 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 fan driven heater space heater etc a poisonous gas may occur 6 When an air conditioning system charge...

Page 25: ...es of socket joints Nominal diameter 1 4 3 8 1 2 5 8 Reference outer diameter of copper pipe jointed mm 6 35 9 52 12 70 15 88 Minimum joint thickness mm 0 50 0 60 0 70 0 80 3 2 2 Processing of Piping Materials When performing the refrigerant piping installation care should be taken to ensure that water or dust does not enter the pipe interior that no other oil than lubricating oils used in the ins...

Page 26: ...tch type 0 to 0 5 0 to 0 5 0 to 0 5 0 to 0 5 Conventional flare tool Clutch type Wing nut type 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 2 0 to 2 5 1 0 to 1 5 2 0 to 2 5 Table 3 2 4 Dimensions related to flare processing for R22 Nominal diameter 1 4 3 8 1 2 5 8 Outer diameter mm 6 35 9 52 12 70 15 88 Thickness mm 0 8 0 8 0 8 1 0 A mm Flare tool for R22 clutch type 0 to 0 5 0 to 0 5 0 ...

Page 27: ...ghtening torque for R410A is the same as that for conventional R22 Incidentally when the torque is weak the gas leakage may occur When it is strong the flare nut may crack and may be made non removable When choosing the tighten ing torque comply with values designated by manufacturers Table 3 2 7 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by th...

Page 28: ... refrigerant charging Refrigerant cylinder Leakage detector Charging cylinder Usage Pipe flaring Flaring by conventional flare tool Connection of flare nut Evacuating refrigerant charge run check etc Vacuum evacuating Refrigerant charge Refrigerant charge Gas leakage check Refrigerant charge R410A air water heat pump installation Existence of new equipment for R410A Yes Yes Yes Yes Yes Yes Yes Yes...

Page 29: ...and the connecting port of the electronic balance and charge liquid refrigerant Water heat exchanger unit Outdoor unit Opened Opened Refrigerant cylinder with siphon Check valve Open close valve for charging Electronic balance for refrigerant charging Opened Closed Service port 3 4 Recharging of Refrigerant When it is necessary to recharge refrigerant charge the specified amount of new refrigerant...

Page 30: ... composed of silver and copper It is used to join iron copper or copper alloy and is relatively expensive though it excels in solderability 2 Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 Low temperature brazing filler Low temperature brazing filler is generally called solder and is an alloy of tin and lead Since it is weak in adhe...

Page 31: ...ore use a flux which does not contain chlorine 3 When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water 4 Remove the flux after brazing 3 5 3 Brazing As brazing work requires sophisticated techniques experiences based upon a theoretical knowledge it must be performed by a person qualified In order to prevent the oxide film from occurring i...

Page 32: ...674 450 288 91 290 19 125 5 163 250 167 5 42 42 3 47 or more 74 or more 140 or more 7 Knockout system Knockout system Zeolite plus filter Air ionizer Installation plate hanging section Remote controller holder Wireless remote controller Stud bolt hole for Ø6 Stud bolt hole for Ø8 to Ø10 Outline of installation plate Lower part hanging section Center line of installation plate Center line of main u...

Page 33: ...hor bolt 4 Ø12 17 hole 280 40 19 12 21 120 25 95 320 Z Liquid valve Gas valve Service port 164 91 514 38 53 53 53 53 53 90 53 53 40 40 87 116 Z 600 365 100 or more 600 or more Air inlet 100 or more 600 or more Air inlet Air outlet Visible outline of the product view Ø8 Ø10 anchor bolt Mounting dimension of anchor bolt Connecting pipe port Ø6 35 Connecting pipe port Ø9 52 C unit Connecting pipe por...

Page 34: ...ERMO SENSOR TA BLK BLK BLK CN03 WHI 1 2 1 2 WHI 1 2 3 4 5 1 2 3 4 5 1 2 1 2 1 2 3 4 5 1 2 3 4 5 LOUVER MOTOR FAN MOTOR INDOOR TERMINAL BLOCK DC MOTOR WHI YEL YEL YEL YEL FUSE F01 1 3 4 5 1 3 4 5 RED BLK WHI YEL 6 6 BLU DC5V DC12V DB01 CN21 CN23 CN34 CN22 AC 250V BLK WHI 2 1 3 1 3 RED GRN YEL T3 15A Heat exchanger Micro SW BRW BLU RED LINE FILTER TNR CN33 WHI BLK 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 RED...

Page 35: ...t D Power supply 220 240V 50Hz 220 220V 60Hz 2 1 2 1 TE CN604 2 1 2 1 TS CN603 3 2 1 3 1 TGa 3 2 1 3 1 YEL BLU BLK CN606 TGb 3 2 1 3 1 BRW BLU YEL BZ BY BX EW BW EV BV EU BU CN09 CN10 CN11 CN607 TGc 3 2 1 3 1 GRN CN608 TGd 2 1 2 1 BLU BLK WHI RED RED Compressor Fan motor 4 way valve coil 3 1 3 1 3 1 3 1 BLU YEL 2 1 2 1 2 1 2 1 2 1 2 1 PUR ORN 2 1 2 1 2 1 2 1 PNK RED 3 3 3 3 BLU 4 4 4 4 WHI 5 5 5 5...

Page 36: ...block Rectifire Reactor Main Reactor Sub Model name ADR25H200RBTB SC 20 S03J SWT 75 ICF 140 63 2R G5N 1A G4A 1A PE Inverter attached Inverter attached Inverter attached Inverter attached Inverter attached Inverter attached Inverter attached Inverter attached For protection of switching power source F04 For protection of power factor converter circuit breakage For protection of inverter input overc...

Page 37: ...Allowable height difference 15m Allowable pipe length Evaporator Cross flow fan To C room To B room P T2 TO Propeller fan Outdoor unit TA TD TGa Strainer Packed valve Gas side Ø12 7 Accumulating tank 1500cc Compressor DA220A2F 20L Muffler Ø25 x 160L Packed valve Liquid side Ø9 52 TGd TGc TGb Per 1 unit Max 25m Min 2m Total Max 70m Ø6 35 Ø9 52 Ø9 52 Ø9 52 Ø12 7 Ø6 35 Ø6 35 Ø6 35 Pulse motor valve a...

Page 38: ...ble pipe length Evaporator Cross flow fan To C room To B room P T2 TO Propeller fan Outdoor unit TGa Strainer Packed valve Gas side Ø12 7 Compressor DA220A2F 20L Muffler Ø25 x 160L Packed valve Liquid side Ø9 52 TGd TGc TGb Per 1 unit Max 25m Min 2m Total Max 70m Ø6 35 Ø9 52 Ø9 52 Ø9 52 Ø12 7 Ø6 35 Ø6 35 Ø6 35 Pulse motor valve at liquid side UKV 18D Refrigerant amount 2 2kg R410A NOTE Gas leak ch...

Page 39: ...ble height difference 15m Allowable pipe length Evaporator Cross flow fan To B room P T2 TE TO Propeller fan Outdoor unit TD TGa Strainer Packed valve Gas side Ø12 7 Compressor DA220A2F 20L Muffler Ø25 x 160L Packed valve Liquid side Ø9 52 TGc TGb Per 1 unit Max 25m Min 2m Total Max 50m Ø6 35 Ø9 52 Ø9 52 Ø12 7 Ø6 35 Ø6 35 TS Pulse motor valve at liquid side UKV 18D Refrigerant amount 2 4kg R410A N...

Page 40: ...gh MED 58 2 units 16 16 0 7 to 0 9 9 to 11 52 to 54 High MED 62 10 10 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 13 10 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 16 10 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 13 13 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 16 13 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 13 13 13 0 8 to 1 0 11 to 13 51 to 53 High MED 60 16 16 10 0 8 to 1 0 11 to 13 51 to 5...

Page 41: ... 1 High MED 69 2 units 16 16 3 1 to 3 3 48 to 50 1 to 1 High MED 71 10 10 10 2 3 to 2 5 38 to 40 1 to 1 High MED 72 13 10 10 2 3 to 2 5 38 to 40 1 to 1 High MED 72 16 10 10 2 3 to 2 5 38 to 40 1 to 1 High MED 72 13 13 10 2 3 to 2 5 38 to 40 1 to 1 High MED 73 16 13 10 2 3 to 2 5 38 to 40 1 to 1 High MED 73 13 13 13 2 3 to 2 5 38 to 40 1 to 1 High MED 73 16 16 10 2 3 to 2 5 38 to 40 1 to 1 High MED...

Page 42: ... 2 units 16 16 0 7 to 0 9 9 to 11 52 to 54 High MED 62 10 10 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 13 10 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 16 10 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 13 13 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 16 13 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 13 13 13 0 8 to 1 0 11 to 13 51 to 53 High MED 60 16 16 10 0 8 to 1 0 11 to 13 51 to 53 High ME...

Page 43: ...MED 45 10 10 0 8 to 1 0 10 to 12 47 to 49 High MED 42 13 10 0 8 to 1 0 10 to 12 48 to 50 High MED 46 16 10 0 8 to 1 0 10 to 12 49 to 51 High MED 50 13 13 0 8 to 1 0 10 to 12 50 to 51 High MED 54 16 13 0 7 to 0 9 9 to 11 51 to 53 High MED 58 2 units 16 16 0 7 to 0 9 9 to 11 52 to 54 High MED 62 10 10 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 13 10 10 0 8 to 1 0 11 to 13 51 to 53 High MED 60 16 10...

Page 44: ...7 1 to 3 High MED 53 10 10 2 7 to 2 9 45 to 47 0 to 2 High MED 62 13 10 2 8 to 3 0 45 to 47 0 to 2 High MED 63 16 10 2 9 to 3 1 46 to 48 0 to 2 High MED 65 13 13 2 9 to 3 1 46 to 48 0 to 2 High MED 66 16 13 3 1 to 3 3 47 to 49 0 to 2 High MED 68 2 units 16 16 3 3 to 3 5 50 to 52 0 to 2 High MED 70 10 10 10 2 3 to 2 5 38 to 40 1 to 1 High MED 72 13 10 10 2 3 to 2 5 38 to 40 1 to 1 High MED 72 16 10...

Page 45: ...Hz Remote Controller Operation START STOP Thermo Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting Hi POWER SLEEP Operation Mode Selection AUTO COOL DRY HEAT REMOTE CONTROLLER ECO Air Purifier Heat Exchanger Sensor Tc Room Temperature Sensor Ta Infrared Rays Signal Receiver and Indication Functions Cold draft preventing Function 3 minute Dela...

Page 46: ...ircuit Clock Frequency Oscillator Circuit Power Supply Circuit Infrared Rays 36 7kHz Remote Controller Operation START STOP Thermo Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting Hi POWER SLEEP Operation Mode Selection AUTO COOL DRY REMOTE CONTROLLER ECO Air Purifier Heat Exchanger Sensor Tc Room Temperature Sensor Ta Infrared Rays Signal R...

Page 47: ...ion to MCU Output current release control A D converter function M C U Discharge temp Sensor Gas side pipe temp Sensor Suction temp Sensor Evaporator temp Sensor Outdoor air temp Sensor MCC 818 SUB P C B MCC 1438 MAIN P C B 220 240V 50Hz 220V 60Hz Driver circuit of P M V Signal communication to MCU Inverter DC AC Over current sensor Compressor B unit P M V C unit P M V D unit P M V 4 Way valve Rel...

Page 48: ...eration control 2 Role of outdoor unit controller Receiving the operation command signal Serial signal from the indoor unit controller the outdoor unit performs its role Compressor operation control Operation control of outdoor fan motor P M V control 4 way valve control Operations followed to judgment of serial signal from indoor side Detection of inverter input current and current release operat...

Page 49: ...porary operation 61 12 Air purifying control 61 Air purifying control Detection of abnormality 62 13 Discharge temperature control 62 14 Pulse motor valve P M V control 63 15 Clean operation 64 16 Clean operation release 65 17 Select switch on remote controller 66 9 3 Auto Restart Function 67 9 3 1 How to Set the Auto Restart Function 67 9 3 2 How to Cancel the Auto Restart Function 68 9 3 3 Power...

Page 50: ...remote controller ON OFF Air conditioner Air purifier Operation select COOL HEAT AUTO DRY Temperature setup Air direction Swing Air volume select AUTO LOW LOW MED MED HIGH ECO ON timer setup OFF timer setup High power Indoor unit control Command signal generating function of indoor unit operation Calculation function temperature calculation Activation compensation function of indoor fan Cold draft...

Page 51: ...lve according to the operation signal sent from the indoor unit 1 The power coupler of 4 way valve is usually turned off and it is turned on during defrost operation Only in heating No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Indoor unit Pressed first Pressed last Pressed first Pressed last Pressed first Pressed last Pressed first Pressed last Pressed first Pressed last Pressed first Pressed last Pr...

Page 52: ...mode COOL HEAT reselect an operation mode 5 DRY operation DRY operation is performed according to the difference between room temperature and the setup temperature as shown below In DRY operation fan speed is controlled in order to prevent lowering of the room temperature and to avoid air flow from blowing directly to persons 1 Detects the room temperature Ta when the DRY operation started 2 Start...

Page 53: ... the setup tempera ture room temperature and heat exchanger temperature Fig 1 Fig 2 Table 1 Indoor fan air flow rate Fan speed level WF WE WD WC WB WA W9 W8 W7 W6 W5 W4 W3 W2 W1 COOL FAN ONLY UH H M M L L L UL SUL HEAT UH H M M L L L UL SUL DRY L L L UL SUL RAS B10GKVP E RAS M10GKCVP E Fan speed Air flow rate rpm m3 h 1630 684 1480 609 1400 569 1350 544 1200 468 1110 423 980 358 910 323 900 318 89...

Page 54: ...tes passed after operation start and room temp is 3 C or lower than set temp Room temp Set temp 4 C In stability When 12 to 25 minutes passed after operation start and room temp is higher than set temp 3 C When 25 minutes or more passed after operation start Room temp Set temp 3 5 C Fan speed AUTO Basic fan control No limitation while fan speed MANUAL mode is in stability A When Tsc 24 A is 24 and...

Page 55: ...tdoor unit 2 When strong wind blows at outdoor side the operation of air conditioner continues with the fan motor stopped 3 Whether the fan is locked or not is detected and the operation of air conditioner stops and an alarm is displayed if the fan is locked 4 According to each operation mode by the conditions of outdoor temperature To and compressor revolution the speed of the outdoor fan shown i...

Page 56: ...nt Capacity control continues Outdoor temp 40 C 9 6A 14 2A 14 4A 14 4A 14 5A 16 C 39 C 11 C 15 5 C 10 5 C Cooling current release value Heating current release value Current decrease Outdoor unit inverter main circuit control current High Low Reduce compressor speed Operating current Setup value 1 Four indoor units from A to D determine the respective instruction revolutions from the differ ence b...

Page 57: ...C the compressor speed is kept Q zone When temperature of the indoor heat exchanger drops in the range from 46 C to under 55 C the compressor speed is kept Q zone 2 When temperature of the indoor heat exchanger rises to 55 C or higher the compressor speed is reduced P zone 3 When temperature of the indoor heat exchanger does not rise to 50 C or when it drops below to 46 C the capacity control oper...

Page 58: ...nvert OFF 4 way valve 10 seconds after stop of the compressor 3 The outdoor fan stops at the same time when the compressor stops 4 When temperature of the indoor heat exchanger becomes 38 C or lower stop the indoor fan Finish of defrost operation Returning conditions from defrost operation to heating operation 1 Temperature of outdoor heat exchanger rises to 8 C or higher 2 Temperature of outdoor ...

Page 59: ...position Heating memory position Room temp Set temp 3 0 Room temp Set temp 3 0 YES YES YES NO NO NO Louver angle Horizontal 0 Item 9 Louver control 1 Louver position Operation flow and applicable data etc This function controls the air direction of the indoor unit Description Swing operation is performed in width 35 with the stop position as the center If the stop position exceeds either upper or ...

Page 60: ... C or more turn off the compressor Heating operation Heating operation 1 The indoor fan speed is con trolled within W7 as maximum value 2 Setting the compressor speed to Max 42 Hz the temperature zone in which the operation can be performed with Max 16Hz is gradually widened after 30 minutes passed when starting ECO operation 3 The louver position is set horizontally Standard cooling position when...

Page 61: ...s the operation of air conditioner air purifier an operation of air conditioner air purifier starts by pushing AC button on the remote controller Operation of air conditioner air purifier is stored in memory 1 Swing is available 2 Fan speed is Fan Auto mode varies in order M 1 L L SL Filter lamp ON Press RESET button Did you press RESET button for 3 seconds or more Did you press RESET button for 1...

Page 62: ...purifier and an error is judged again 13 Discharge temperature control 1 Reset by RESET button 2 Reset by RESET button or by the stop direction from the remote controller When the breaker is turned ON In restart time after power failure or RESET button is pressed while the FILTER indicator is turned on the air purifier is not turned on until the integrated operation time of the indoor fan exceeds ...

Page 63: ...so that it is in the range of set tempera ture Discharge temp control 4 When defrost operation is performed the open degree of valve is adjusted accord ing to each setup conditions during preparation for defrost and during defrost operation 4 way valve is inversed 5 To turn off the compressor while the air conditioner stops by control of the thermostat or by remote controller adjust the open degre...

Page 64: ...h was performed prior to the shutdown after which the clean operation stops The clean operation is not performed after a heating operation 2 Operation 1 When the stop signal from the remote controller is received the S CLEAN indicator green on the main body lights and the clean operation starts Neither the OPERATION indicator nor the TIMER indicator light 2 The period of the clean operation is det...

Page 65: ... function Hold down the auto operation switch on the indoor unit for at least 3 seconds but not more than 10 seconds The indoor unit s buzzer emits three beeps and the OPERATION indicator flashes at 5 Hz intervals This completes the clean operation release setting Cut J04 of the indoor P C board This step may be skipped if the auto restart function is not required Hold down the auto operation swit...

Page 66: ...ion The indoor unit on which the remote controller selection has been set to B receives the signal of the remote control ler also set to B At the factory the remote controller selection is set to A on all the indoor units There is no A setting display Setting the remote controller Switching between A and B is enabled by cutting the jumper wire inside the battery box using pliers 1 Slide open the r...

Page 67: ...an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down The operation will resume without warning three minutes after power is restored This function is not set to work when shipped from the factory Therefore it is necessary to set it to work 9 3 1 How to Set the Auto Restart Function ...

Page 68: ...he unit receives the signal and beeps three times The unit will be required to be turned on with the remote controller after the main power supply is turned off When the system is on stand by not operating When the system is operating 9 3 3 Power Failure During Timer Operation When the unit is turned off because of power failure during timer operation the timer operation is can celled In that case...

Page 69: ...k and ON timer times To move up the time press of the ON ON button To move down the time press of the ON ON button 9 OFF timer button OFF Use this button to change the OFF timer times To move up the time press of the OFF OFF button To move down the time press of the OFF OFF button 10 Reserve button SET Press this button to store the time settings A receiving beep is heard 11 Cancel button CLR Pres...

Page 70: ... time setting for timer operation or the clock time is indicated The current time is always indicated except during TIMER operation 7 Hi POWER indicator Indicates when the Hi POWER operation starts Press the Hi POWER button to start and press it again to stop the operation 8 MEMORY indicator Flashes for 3 seconds when the MEMO button is pressed during operation The mark is shown when holding down ...

Page 71: ...nd thermo off occurred the following operations start Refer to the figure below 1 The indoor unit of the room A room in which thermo off did not occur starts a continuous operation with the setup number of revolution 2 The indoor unit of the room B room in which thermo off occurred starts intermittent operation of the indoor fan The indoor fan operates with number of revolution of UL or SUL Fan ON...

Page 72: ... C and D shown in the right figure Ensure sufficient space to allow drainage A B C D Power cord Y Wall Bottom right Rear right Right Left Bottom left Rear left As shown in the figure position power cord and connecting cable downward and lead out along piping connection port Before installing the wireless remote controller With the remote controller cover removed correctly load the supplied batteri...

Page 73: ...me Owner s manual Indoor unit Installation manual Indoor unit Installation manual Outdoor unit Specifications Outdoor unit 10 2 2 Accessory and Installation Parts Part No Part name Q ty Mounting screw Ø4 25L 6 Remote control holder mounting screw Ø3 1 16L 2 Part Code Y Z Parts name Refrigerant piping Indoor unit name Liquid side Outer diameter Gas side Outer diameter RAS B10GKVP E B13GKVP E 6 35 m...

Page 74: ... and port size have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the port size As pressure is high and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur The size of opposite sides of flare nuts have been increased Incidentally a common wrench is used for nominal diameters 1 4 and...

Page 75: ...to direct sunlight or close to a heating source such as a stove Keep the remote controller at least 1 m away from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interference The location of the remote controller should be determined as shown below Fig 10 3 1 10 3 2 Drilling a Hole and Mounting Instal lation Plate Drilling a hole When install the ref...

Page 76: ...e use of the air conditioner NOTE Wire type More than H07RN F or 245IEC66 1 0mm CAUTION This appliance can be connected to a main circuit breaker in either of the following two ways 1 Connection to fixed wiring A switch or circuit breaker which discon nects all poles and has a contact separa tion of at least 3 mm must be incorporated in the fixed wiring An approved circuit breaker or switch must b...

Page 77: ...e 70 mm 10 mm 10 mm 50 mm Fig 10 3 10 1 Die cutting front panel slit Cut out the slit on the left or right side of the front panel for the left or right connection and the slit on the bottom left or side of thefront panel for the bottom left or right connection with a pair of nippers 2 Changing drain hose For left connection left bottom connection and rear left connection s piping it is necessary ...

Page 78: ...they are posi tioned within 43 mm above the wall surface If the connecting pipes are positioned more than 43 mm above the wall surface the indoor unit may be unstable When bending the connecting pipe make sure to use a spring bender to avoid crushing the pipe Refer to the table below for the bending radius of each connection pipe Fig 10 3 17 NOTE If the pipe is incorrectly bent the indoor unit may...

Page 79: ...s firmly hooked on the installation plate Installation plate Indoor unit Connecting cable Auxiliary pipes 10 3 7 Drainage 1 Run the drain hose at a downward sloped angle NOTE Hole should be made at a slight downward slant on the outdoor side Fig 10 3 21 2 Put water in the drain pan and make sure that the water is being drained outside 3 When connecting extension drain hose insulate the connection ...

Page 80: ... your neighbors A place which is not exposed to a strong wind A place which does not block a passageway When the outdoor unit is to be installed in an elevated position be sure to secure its feet There must be sufficient spaces for carrying the unit into and out of the site A place where the drain water does not raise any problem A place which can bear the weight of the outdoor unit and does not a...

Page 81: ... 1 5 0 5 to 1 0 1 0 to 1 5 0 5 to 1 0 Outer dia of copper pipe 6 35 9 52 12 7 R410A R22 1 5 to 2 0 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 2 0 to 2 5 1 5 to 2 0 Flaring size A Unit mm Fig 10 4 4 Outer dia of copper pipe 6 35 9 52 12 7 A R410A R22 9 1 9 0 13 2 13 0 16 6 16 2 0 0 4 In the case of flaring for R410A with the conven tional flare tool pull out it approx 0 5 mm more than that for R22 to adjust ...

Page 82: ...and sufficient consideration should be given to ensuring that the outdoor unit will not fall 6 When the outdoor unit is to be mounted high on a wall take particular care to ensure that parts do not fall installer is protected 7 When doing installation work on level ground it is usual to wiring and piping connections to the indoor units And then make to the outdoor unit However if outdoor work is d...

Page 83: ...e stem all the way out do not try to open it beyond the stopper Securely tighten the valve stem cap in torque is as follows Fig 10 4 12 Fig 10 4 13 10 4 8 Electrical Work For the air conditioner that has no power cord connect a power cord to it as mentioned below Hexagonal wrench is required Model Power supply Maximum running current Installation fuse rating Power cord 3 Units Multi 4 Units Multi ...

Page 84: ...porate in the fixed wiring An approved short circuit breaker or switches must be used A breaker having a sensitivity of approxi mately 0 1 second or less and a capacity of approximately 30 mA is usually used Fig 10 4 14 4 units A B C D Multi Fig 10 4 15 CAUTION Wrong wiring connection may cause some electrical parts burn out Be sure to use the cord clamps specified positions with attached to the p...

Page 85: ...on during check operation or after miswiring mispiping error is determined connect the miswiring check connector Miswiring mispiping check by LED Indication For this outdoor unit the self miswiring mispiping check is possible by using five LEDs 1 Yellow 4 Red LEDs D800 to D804 locate on the sub control board underneath of the inverter Fig 10 4 18 LED Light Emitting Diode LED ON l LED OFF LED FLASH...

Page 86: ...ervice port diameter of the outdoor unit control valve 3 way valve has been changed 1 2 UNF 20 threads per inch In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite side of flare nuts is changed for copper pipes with nominal dimensions 1 2 and 5 8 New tools for R410A New tools for R410A Gauge manifold Charge hose Electronic b...

Page 87: ...100 101 106 NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC280V remains and discharging takes a lot of time After turning off the power source if touching the charging section before discharging an electri cal shock may be caused Discharge the electrolytic capacitor completely by usi...

Page 88: ...ration cannot be performed Description The OPERATION lamp of the indoor unit flashes when power source is turned on If START STOP button is operated once flashing stops Flashes also in power failure The compressor does not operate while compressor restart delay timer 3 minutes timer operates The same phenomenon is found after power source has been turned on because 3 minutes timer operates The air...

Page 89: ...e mode is indicated on the display of the remote controller Press ON or OFF button If there is no fault with a code the indoor unit will beep once Beep and the display of the remote controller will change as follows The TIMER indicator of the indoor unit flashes continuously 5 times per 1 sec Check the unit with all 52 check codes to as shown in Table 11 3 1 Press ON or OFF button to change the ch...

Page 90: ...rocomputer returns the initial status However the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory 3 After servicing press CLR button under check mode status and then send the check code 7F to the indoor unit The error code stored in memory is cleared Table 11 3 1 Block distinction Operation of diagnosis function Block Indoor P C board ...

Page 91: ...ion of refrigera tion cycle Check installation condition Short circuit of outdoor diffuser Block Outdoor P C board Not displayed Outdoor P C board Others including compressor Operation of diagnosis function Cause of operation Inverter over current protective circuit operates Short time Position detect circuit error or short circuit between windings of compressor Current detect circuit error Being ...

Page 92: ...controller Is voltage DC12V or 5V indicated on rear of indoor control board normal Does transmission mark on remote controller flash normally and is its signal transmitted properly Is DC310 340V supplied between CN10 1 3 Does fan motor connector between CN10 1 3 short circuit Item by symptoms Operation Check Item Considerable principle cause Measures Parts R04 R05 DB01 C01 C03 IC01 and T01 are def...

Page 93: ... detect DC 1V or more between 5 and 3 of motor connector CN10 Is it possible to detect DC 1V or more between 5 and 3 of motor connector CN10 Is it possible to detect DC 310 340V between 1 and 3 of motor connector CN10 Motor connection condition Is it possible to detect DC 15V between 4 and 3 of motor connector CN10 Is it possible to detect DC 15V between 4 and 3 of motor connector CN10 Is it possi...

Page 94: ...ace motor 4 Indoor fan motor automatically starts to rotate by turning on power supply Cause The IC is built in the indoor fan motor Therefore the P C board is also mounted to inside of the motor If the P C board is soldered imperfectly or the IC is defective the fan motor may automatically rotate by turning on power supply Inspection procedure 1 Remove the front panel Remove 2 screws 2 Remove the...

Page 95: ... Batteries are exhausted Does radio sound is affected by remote controller when a signal is transmitted at distance of 5 cm from radio Is transmission mark indicated P C board is defective Replace P C board Replace batteries Replace remote controller Normal operation Remote controller is defective NO YES NO YES NO YES NO YES NO YES NO YES NO YES Does indoor unit start to operate by automatic resta...

Page 96: ...m that transmission from indoor unit to outdoor unit is correctly performed based upon the follow ing diagram NOTE Measurement should be performed 2 minutes and 30 seconds after starting of the operation Be sure to prepare a diode for judgment Normal time Voltage swings between DC15 and 60V Inverter Assembly check 11 9 1 Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while af...

Page 97: ...ndoor check code 14 16 17 1C 19 1A 1B 1D 1E 1F 18 18 1C 1C 1C 1C 1C 1C 1C 1C Description During normal operation IGBT short circuit compressor motor rare short Position detect circuit error Current detect circuit error Compressor system error Discharge temp sensor TD error Outdoor fan error Outside temp sensor TO error Compressor lock Discharge temp sensor error gas leakage Compressor break down S...

Page 98: ...board MCC5020 Micro switch is stuck Micro switch malfunction To item Power supply is not turned on Replace the main P C board MCC5020 Replace micro switch Does the PURE indicator go off within 2 seconds after it was ON and does the FILTER indicator Orange go on Are the electric dust collector and ionizer dried Electrode check Dry the electric dust collector and ionizer Is DC 5V to DC 10V applied b...

Page 99: ...here conduction of micro switch connector under OFF status of the micro switch Front panel opened Is there conduction of micro switch connector under ON status of the micro switch Front panel closed Does the indoor fan rotate Does the PURE indicator Blue or the FILTER indicator Orange go on Is DC12V applied between Red DC12V and Brown GND of CN1 of the high voltage generator in the air purifier Mi...

Page 100: ...with or Summary If fuse was blown be sure to check the electrolytic capacitor and diode block Connect discharge resistance approx 100Ω 40W or soldering iron plug between terminals of the electro lytic capacitor 760µF of C14 with printed CAU TION HIGH VOLTAGE on P C board OK if 760µF DC280 to 380V Remove CN300 while pushing the part indicated by an arrow because CN300 is a connector with lock Resis...

Page 101: ...ting precautions 1 When removing the front panel or the P C board be sure to shut off the power supply breaker 2 When removing the P C board hold the edge of the P C board and do not apply force to the parts 3 When connecting or disconnecting the connectors on the P C board hold the whole housing Do not pull at the lead wire 2 Inspection procedures 1 When a P C board is judged to be defective chec...

Page 102: ... 60V Check whether or not all indicators OPERATION TIMER FILTER PURE are lit for 3 seconds and they return to normal 3 seconds later 1 Check whether or not the com pressor operates 2 Check whether or not the OP ERATION indicator flashes 1 Check whether or not the com pressor operates 2 Check whether or not the OP ERATION indicator flashes 1 Check it is impossible to detect the voltage DC 15V betwe...

Page 103: ... temp sensor TA Room temp sensor TC Heat exchanger temp sensor TO Outdoor temp sensor TE Outdoor heat exchanger temp sensor TS Suction temp sensor TGa A room Gas side temp sensor TGb B room Gas side temp sensor TGc C room Gas side temp sensor TGd D room Gas side temp sensor TA TC TO TGa TGb TGc TGd TE TS TD 1 Sensor characteristic table ...

Page 104: ... by using the tester Under normal temp 25 C Refer to 11 4 1 3 and 4 2 3 Remote controller Louver motor MP24Z 4 Indoor fan motor Under 20 C Position Yellow Pink Resistance value 5 to 20 kΩ 2 3 4 Outdoor fan motor Model ICF 140 63 2R Compressor thermo Bimetal type Model US622KXTMQO Outdoor temperature sensor TO pipe temperature sensor TGa TGb TGc TGd discharge tempera ture sensor TD suction temperat...

Page 105: ...mal charging characteristics are shown in continuity test by the tester Case that product is good Pointer swings once and returns slowly When performing test once again under another polarity the pointer should return C12 C13 C14 C15 500µF 400V 2 IGBT module 1 Turn OFF the power supply switch 2 Discharge all four electrolytic capacitors completely 3 Execute continuity test with a tester MCC 1438 S...

Page 106: ...outdoor P C board 3 How to simply judge whether outdoor fan motor is good or bad NOTE However GND circuit error inside of the motor may be accepted in some cases when the above check is performed When the fan motor does not become normal even if P C board is replaced replace the outdoor fan motor If the resistance value between 1 Yellow lead 4 Pink lead of the connector CN301 Motor position detect...

Page 107: ...they may ignite any oil mixed with the refrigerant gas 2 Do not use welding equipment in an airtight room Carbon monoxide poisoning may result if the room is not properly ventilated 3 Do not bring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspecting the...

Page 108: ...ing screws 2 pcs 6 Press the electric parts box with the right thumb while pulling the both sides of the front panel toward you How to assemble the front panel 1 Press three center positions and two lower center positions of the air outlet and then hang the hanging hooks 4 pcs at the top side of the front panel to the rear plate 2 Insert the electric dust collector and left and right air filters P...

Page 109: ...from where they are fitted into the other compo nents 5 Remove the fixing screw which secures the high voltage generator and remove the high voltage generator from the evaporator Remarks How to assemble the high voltage generator 1 Insert the high voltage generator straight into the evaporator and secure it using the fixing screw Claw Claw Claw Check whether the leads have been completely inserted...

Page 110: ...m a loop Press the drain pan Press the drain pan Pull the display unit toward you 5 Disengage the two claws at the top of the display unit They can be easily disengaged by pressing the drain pan above the claws and at the same time pulling the display unit toward you 6 Remove the fixing screw that secures the electric parts box assembly and remove the assembly How to assemble the electric parts bo...

Page 111: ...3 Remove two fixing screws at the left side of the end plate of the heat exchanger Slide the horizontal louver leftward Remarks Screw Screw Disengage the claw Pipe holder Screw Screw Heat exchanger Heat exchanger fixing holder fixing holder Screw Screw Disengage the claw Pipe holder Screw Heat exchanger fixing holder Screw Hanged part 4 Remove the heat exchanger fixing holder by removing the two f...

Page 112: ...used to secure the left edge panel of the heat exchanger and remove the two screws used to secure the bearing base 3 Raise the left side of the heat exchanger slightly and remove the bearing base Caution at assembling If the bearing is out from the housing push it into the specified position and then incorporate it in the main body After assembling the bearing base check that it is fitted into the...

Page 113: ...ont After assembling the two hooking claws of the motor band right into the main body position the fan motor insert it and then secure the motor band right using the two fixing screws Remarks 1 Follow to the procedure in the item 6 2 Remove the heat exchanger fixing holder by removing the two fixing screws used to secure it 3 Loosen the set screw of the cross flow fan 4 Lift the left side of the h...

Page 114: ...flow fan so that the right end of the 1st joint from the right of the cross flow fan is set keeping 70 5 mm from wall of rear plate of the main unit Holding the set screw install the cross flow fan so that U groove of the fan motor comes to the mounting hole of the set screw Perform positioning of the fan motor as follows When assembling the fan motor the fan motor must be installed in such a way ...

Page 115: ...peration of air conditioner 2 Remove the front panel Remove the 2 fixing screws 3 Remove the electrical part base Remarks Replace terminal block microcomputer ass y and the P C board ass y 12 2 Microcomputer P C board layout R05 L01 C01 CN23 FUSE R04 R01 CN10 J04 IC03 C20 IC01 T01 C03 DB01 ...

Page 116: ...rt of the upper cabinet perform work from 6 to 7 of 1 and remove the partition fixing plate ST1T Ø4 10L 1 pc Be careful to check the inverter because high voltage circuit is incorporated in it 3 Perform discharging by connecting the dis charging resistance approx 100Ω 40W or plug of soldering iron to terminals of the C15 printed CAUTION HIGH VOLTAGE is attached electrolytic capacitor 760µF on P C ...

Page 117: ... cable 5P Red Sub control board assembly side CN302 Connecting cable 3P White CN303 Connecting cable 2P White CN501 Connecting cable 3P Red CN800 Connecting cable 5P Red 3 The connecting cable connecting compressor and P C board base and that connecting reactor and P C board base are fixed to the inverter box with bundling band Cut off bundling band 4 The connecting cables of the main P C board ba...

Page 118: ...board Take care that the reactor and the partition fixing plate remain Ø4 10L 3 pcs 4 Remove the sound insulation materials 5 Remove terminal cover of the compressor and disconnect lead wires of the compressor and the compressor thermo assembly from the terminal 6 Remove pipes connected to the compressor with a burner 7 Remove the fixing screws of the bottom plate and heat exchanger Ø4 10L 2 pcs 8...

Page 119: ... Positioning bracket at coil side Positioning concavity at PMV unit side 72 pitch PMV unit Mounting Method of Pulse Motor Valve PMV Coil Set the positioning bracket on the PMV coil to a concavity at PMV unit side and fix PMV coil In this time match color of ID mark at the coil side with that of ID mark at the PMV unit side Make sure also that pipes do not deform when inserting and fixing the coil ...

Page 120: ...e dryer and constring them 9 Wind the attached color tape round the both terminals of the protective tube when colored protective tube is used 10 Fix the sensor again Remarks 1 2 3 4 5 6 Parts name Sensor Sensor Spring A Sensor Spring B Thermal constringent tube Color tape Terminal Q ty 1 1 1 3 1 3 Cutting here Cutting here Cutting here Soldered part Dryer Winding the color tape 100 200 Connector ...

Page 121: ... 121 MCC 1438 ...

Page 122: ... 122 MCC 818 ...

Page 123: ...r 2 226 43044804 Evaporator 1 227 43039324 Guide Drain 228 43049728 Guide Drain Left 229 43019904 Holder Sensor 230 43049770 Holder Evaporator Right 232 43062256 Cover Terminal 233 43062247 Cover Lead 234 43082293 Plate Installation 235 4306S577 Remote Controller 236 43083071 Holder Remote Comtroller 238 43003307 Body Ass y Back 239 43070188 Hose Drain 240 43079268 Cap Drain 245 43080516 Electrica...

Page 124: ...ro Ass y Location Part Description No No 407 4306S709 P C Board Ass y B10GKVP E M10GKCVP E 408 4306S710 P C Board Ass y B13GKVP E M13GKCVP E 409 4306S711 P C Board Ass y B16GKVP E M16GKCVP E 410 43067115 Clamp Cord Indoor Unit 2 406 405 401 402 403 404 407 408 409 410 The parts in the following parts list are conformed to RoHS Therefore be sure to use the following parts for repairing and replacin...

Page 125: ... 125 6 41 42 50 35 39 40 23 24 25 52 44 4 32 33 34 7 5 8 38 3 30 50 51 9 36 49 27 16 19 22 13 46 48 15 18 21 14 17 20 1 37 2 29 28 31 10 12 45 47 43 13 2 Outdoor Unit ...

Page 126: ...43047669 Nut Flange 33 43120213 Fan Propeller PJ491 34 4302C069 Motor Fan DC ICF 140 63 2R 35 43058276 Reactor CH 47 Z T 36 43048066 Accumulator Ass y 37 4301V021 Hanger 38 43119390 Hanger 39 43046445 Valve 4 way STF 0213Z 40 43046443 Coil 4 way VHV 41 43043748 Condenser Ass y 4M27GACV E 42 43043747 Condenser Ass y 4M27GAV E 3M26GAV E 43 43032441 Nipple Drain 44 43158192 Reactor CH 43 Z T 45 43047...

Page 127: ...60565 Terminal Block 3P 702 43160566 Terminal Block 6P AC 250V 20A 704 43050424 Sensor TD Ø4 705 43050425 Sensor TO TE TS Ø6 Location Part Description No No 706 43150320 Sensor TG Ø4 707 4316V192 Plate 708 4306S689 P C board Ass y MCC 818 4M27GAV E 710 4316V278 P C board Ass y IPDU MCC 1438 715 43150259 Rectifier 30A 800V TO Sensor 705 704 710 708 701 702 700 715 TE Sensor TS Sensor TD Sensor 707 ...

Page 128: ...e following parts for repairing and replacing Location Part Description No No 700 43162042 Base P C board ABS 701 43160565 Terminal Block 3P 702 43160566 Terminal Block 6P AC 250V 20A 704 43050424 Sensor TD Ø4 705 43050425 Sensor TO TG Ø6 Location Part Description No No 707 4316V192 Plate 708 4306S689 P C board Ass y MCC 818 4M27GACV E 710 4316V278 P C board Ass y IPDU MCC 1438 715 43150259 Rectif...

Page 129: ...g parts for repairing and replacing Location Part Description No No 700 43162042 Base P C board ABS 701 43160565 Terminal Block 3P 702 43160566 Terminal Block 6P AC 250V 20A 704 43050424 Sensor TD Ø4 705 43050425 Sensor TO TE TS Ø6 Location Part Description No No 706 43150320 Sensor TG Ø4 707 4316V192 Plate 709 4306S690 P C board Ass y MCC 818 3M26GAV E 710 4316V278 P C board Ass y IPDU MCC 1438 7...

Page 130: ...ON 2 CHOME 12 32 KONAN MINATOKU TOKYO 108 0075 JAPAN Copyright 1999 to 2005 TOSHIBA CARRIER CORPORATION ALL Rights Reserved This product is compliant with Directive 2002 95 EC and cannot be disposed as unsorted municipal waste ...

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