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COMBINATION OF INDOOR AND OUTDOOR UNITS

Heat pump type

Outdoor unit

SUZ-

SLZ-A09AR.TH

SLZ-A12AR.TH

SLZ-A18AR.TH

SEZ-A09CR.W

SEZ-A12AR.TH

SEZ-A18AR.TH

SEZ-A24AR.TH

—

OC302

—

OC303

Indoor unit

Service

Manual No.

Service Ref.

Heat pump

without

electric heater

A12VR.TH

A09VR.TH

A24VR.TH

A18VR.TH

OC304A --1qxp 04.6.29 8:33 AM Page 2

Содержание SUZ-A09VR

Страница 1: ...MENSIONS 12 7 WIRING DIAGRAM 14 8 REFRIGERANT SYSTEM DIAGRAM 16 9 PERFORMANCE CURVES 19 10 ACTUATOR CONTROL 41 11 SERVICE FUNCTIONS 42 12 TROUBLESHOOTING 42 13 DISASSEMBLY INSTRUCTIONS 71 14 PARTS LIS...

Страница 2: ...eat pump type Outdoor unit SUZ SLZ A09AR TH SLZ A12AR TH SLZ A18AR TH SEZ A09CR W SEZ A12AR TH SEZ A18AR TH SEZ A24AR TH OC302 OC303 Indoor unit Service Manual No Service Ref Heat pump without electri...

Страница 3: ...me special tools and piping parts materials are required Refer to the table below 2 Take sufficient care not to allow water and other contaminations to enter the R410A refrigerant during storage and i...

Страница 4: ...linder because the refrigerant bubbles due to high pressure and high speed vaporization No No No Yes Yes New New New Gauge manifold Charge hose Torque wrench Flare tool Flare gauge Vacuum pump adapter...

Страница 5: ...indoor unit to the flare and the union seat surfaces 4 Air purge Do not discharge the refrigerant into the atmosphere Take care not to discharge refrigerant into the atmosphere during installation re...

Страница 6: ...Drain hose back and side ACCESSORIES 1 Drain socket 1 SUZ A09VR TH SUZ A12VR TH SUZ A09VR TH SUZ A12VR TH OUTDOOR UNIT Air inlet Piping Air outlet back and side Drain hose Drain outlet ACCESSORIES 1 2...

Страница 7: ...0 0 9 4 3 3 78 3 45 SUZ A09VR TH Indoor Service Ref SLZ A09AR TH Indoor Service Ref SLZ A12AR TH Compressor Fan motor Special remarks Coefficient of performance C O P Capacity Electrical data SUZ A12V...

Страница 8: ...istor RT65 at 25 kW r h K h A A A W mm kg dB rpm kg cc k k k k Compressor Fan motor Special remarks Coefficient of performance C O P Capacity Electrical data Outdoor Service Ref Single phase 230V 50Hz...

Страница 9: ...U W 0 45 V W 0 45 PM8H60 UB BLK WHT 15 2 840o850o330 53 2 1 80 450 NEO22 13 4 10 0 17 0 10 0 Cooling 5 0 1 1 5 6 2 5 2 940 1 640w 7 43 2 81 WHT RED 15 2 53 51w 800 480w Heating 5 9 1 1 7 2 2 940 2 210...

Страница 10: ...E 12VDC 10A 23 0mH 25m 5W 5 1 10W G3MB 3P G5N 1a G5NB 1a G4A 1A PS LD30013 Open 152 45m 5W 50m 5W 2 elements Specifications and rating conditions of main electric parts Service Ref Item Smoothing capa...

Страница 11: ...URE LEVEL dB 0 dB 0 0002 bar BAND CENTER FREQUENCIES Hz APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE COOLING FUNCTION SPL dB LINE High FAN SPEED HEATING 47 48 Test conditions Cooling Dry bulb...

Страница 12: ...on 304 325 40 Liquid refrigerant pipe joint Refrigerant pipe flared 6 35 Gas refrigerant pipe joint Refrigerant pipe flared 9 52 4 3 3 5 2 holes 10o21 Drain hole 42 REQUIRED SPACE Basically open 100mm...

Страница 13: ...00mm or more if there are obstacles to both sides Open as a rule 500mm or more if the back both sides and top are open 350mm or more 100mm or more Service panel Gas refrigerant pipe joint Refrigerant...

Страница 14: ...4 NAME CURRENT TRANSFORMER SMOOTHING CAPACITOR FAN MOTOR CAPACITOR DIODE MODULE SURGE ABSORBER FUSE 20A FUSE 3 15A INTELLIGENT POWER DEVICE POWER TRANSISTOR MODULE NAME EXPANSION VALVE COIL REACTOR CM...

Страница 15: ...81 1 3 CN701 1 2 1 2 CN931 LD1 LD2 T801 R934A R934B CN801 2 3 1 3 4 5 1 2 MF CN932 4 X64 5 1 2 3 LDE2 1 3 CT61 TAB1 F912 F911 LDE1 CN912 21S4 POWER SUPPLY N 230V 50Hz TAB2 GRN YLW N PE L TB1 CIRCUIT B...

Страница 16: ...65 Strainer 100 Capillary tube 3 0 2 0 200 Expansion valve Muffler Muffler SUZ A09VR TH SUZ A12VR TH Unit mm Outdoor heat exchanger Flared connection Defrost thermistor RT62 Discharge temperature ther...

Страница 17: ...0 210 13m 240 240 15m 300 300 20m 450 450 SUZ A09VR TH SUZ A12VR TH Refrigerant Piping Max length A w Height difference should be within 12m regardless of which unit indoor or outdoor position is high...

Страница 18: ...Max length m A 30 Indoor unit Gas 0 43 Liquid 0 5 Gas 12 7 15 88 Liquid 6 35 Outdoor unit Gas 0 Liquid 0 SUZ A18VR TH SUZ A24VR TH Model Piping size O D mm Length of connecting pipe m Refrigerant pip...

Страница 19: ...wet and dry bulb thermometers to the indoor air outlet The thermometers must be attached to the position where air speed is high 2 Attach at least 2 sets of wet and dry bulb thermometers to the outdoo...

Страница 20: ...he operational frequency of compressor 0 50 100 150 Hz 2 0 1 5 1 0 0 5 0 0 Input correction factors The operational frequency of compressor Correction of Cooling total input 0 50 100 150 Hz 2 0 1 5 1...

Страница 21: ...0 6 0 7 0 8 0 9 0 75Hz 32 18 Ambient temperature C Ambient humidity SUZ A18VR TH MPa Gauge kgf F Gauge 18 32 15 20 50 25 60 30 70 35 C 0 2 0 4 0 6 0 8 1 0 1 2 75Hz 1 4 Ambient temperature C Ambient h...

Страница 22: ...ast 2 sets of wet and dry bulb thermometers to the indoor air inlet as shown in the figure and at least 2 sets of wet and dry bulb thermometers to the indoor air outlet The thermometers must be attach...

Страница 23: ...6 1 5 6 5 0 SUZ A12VR TH Rated frequency 67Hz 8 6 8 0 7 4 6 8 6 2 5 5 SUZ A24VR TH Rated frequency 87Hz 25 2 23 2 21 3 19 4 17 4 15 5 13 6 11 6 Indoor air Dry bulb temperature difference degree Indoo...

Страница 24: ...ection factors The operational frequency of compressor Correction of Cooling total input Input correction factors The operational frequency of compressor 0 50 100 150 Hz 0 0 0 5 1 0 1 5 2 0 1 5 1 0 0...

Страница 25: ...t current A Ambient temperature C Ambient humidity SUZ A24VR TH MPa Gauge kgf F Gauge 18 32 15 20 50 25 60 30 70 35 C 0 2 0 4 0 6 0 8 1 0 1 2 87Hz 1 4 Ambient temperature C Ambient humidity Outdoor lo...

Страница 26: ...2 20 1 94 1 64 1 31 2 56 2 32 2 06 1 77 1 44 2 67 2 44 2 18 1 90 1 57 2 78 2 56 2 31 2 03 1 71 2 90 2 67 2 43 2 16 1 84 3 01 2 79 2 55 2 29 1 98 3 12 2 91 2 68 2 42 2 11 2 70 2 85 2 70 2 85 3 00 2 70...

Страница 27: ...0 59 0 47 0 87 0 75 0 63 0 51 0 39 0 91 0 79 0 67 0 55 0 43 0 95 0 83 0 71 0 59 0 47 0 99 0 87 0 75 0 63 0 51 1 03 0 91 0 79 0 67 0 55 1 07 0 95 0 83 0 71 0 59 1 11 0 99 0 87 0 75 0 63 790 813 790 81...

Страница 28: ...06 2 74 2 40 2 02 1 59 3 20 2 90 2 56 2 19 1 76 3 35 3 05 2 72 2 35 1 93 3 49 3 20 2 87 2 52 2 10 3 64 3 35 3 03 2 68 2 27 3 78 3 50 3 19 2 85 2 44 3 46 3 65 3 46 3 65 3 84 3 46 3 65 3 84 3 46 3 65 3...

Страница 29: ...0 45 0 33 0 85 0 73 0 61 0 49 0 37 0 89 0 77 0 65 0 53 0 41 0 93 0 81 0 69 0 57 0 45 0 97 0 85 0 73 0 61 0 49 1 01 0 89 0 77 0 65 0 53 1 05 0 93 0 81 0 69 0 57 1102 1134 1102 1134 1187 1102 1134 1187...

Страница 30: ...9 2 05 2 79 2 27 1 70 3 00 2 49 1 92 3 21 2 70 2 15 1 54 2 92 2 38 1 78 3 62 3 13 2 60 2 02 1 36 3 83 3 35 2 83 2 25 1 60 4 04 3 57 3 06 2 49 1 85 4 24 3 78 3 28 2 73 2 10 4 45 4 00 3 51 2 97 2 34 4 6...

Страница 31: ...4 0 42 0 30 0 58 0 46 0 34 0 62 0 50 0 38 0 26 0 54 0 42 0 30 0 70 0 58 0 46 0 34 0 22 0 74 0 62 0 50 0 38 0 26 0 78 0 66 0 54 0 42 0 30 0 82 0 70 0 58 0 46 0 34 0 86 0 74 0 62 0 50 0 38 0 90 0 78 0 6...

Страница 32: ...1 92 1 65 1 36 1 03 2 27 2 03 1 77 1 49 1 16 2 38 2 14 1 89 1 61 1 29 2 48 2 26 2 01 1 73 1 42 2 59 2 37 2 13 1 86 1 54 2 70 2 48 2 24 1 98 1 67 2 81 2 59 2 36 2 11 1 80 2 59 2 74 2 59 2 74 2 88 2 59...

Страница 33: ...0 52 0 40 0 80 0 68 0 56 0 44 0 32 0 84 0 72 0 60 0 48 0 36 0 88 0 76 0 64 0 52 0 40 0 92 0 80 0 68 0 56 0 44 0 96 0 84 0 72 0 60 0 48 1 00 0 88 0 76 0 64 0 52 1 04 0 92 0 80 0 68 0 56 770 792 770 79...

Страница 34: ...25 2 92 2 55 2 15 1 69 3 40 3 08 2 72 2 32 1 87 3 56 3 24 2 89 2 50 2 05 3 71 3 40 3 05 2 68 2 23 3 86 3 56 3 22 2 85 2 41 4 02 3 72 3 39 3 03 2 60 3 67 3 88 3 67 3 88 4 08 3 67 3 88 4 08 3 67 3 88 4...

Страница 35: ...0 45 0 33 0 85 0 73 0 61 0 49 0 37 0 89 0 77 0 65 0 53 0 41 0 93 0 81 0 69 0 57 0 45 0 97 0 85 0 73 0 61 0 49 1 01 0 89 0 77 0 65 0 53 1 05 0 93 0 81 0 69 0 57 1134 1166 1134 1166 1221 1134 1166 1221...

Страница 36: ...3 82 3 26 2 64 1 94 4 56 4 05 3 51 2 90 2 21 4 78 4 29 3 75 3 16 2 48 5 01 4 52 4 00 3 42 2 75 5 23 4 76 4 24 3 68 3 02 5 46 4 99 4 49 3 93 3 28 5 68 5 23 4 74 4 19 3 55 5 40 5 70 5 40 5 70 6 00 5 40...

Страница 37: ...0 41 0 29 0 81 0 69 0 57 0 45 0 33 0 85 0 73 0 61 0 49 0 37 0 89 0 77 0 65 0 53 0 41 0 93 0 81 0 69 0 57 0 45 0 97 0 85 0 73 0 61 0 49 1 01 0 89 0 77 0 65 0 53 1851 1905 1851 1905 1994 1851 1905 1994...

Страница 38: ...4 20 3 59 2 91 2 14 5 01 4 46 3 86 3 19 2 43 5 26 4 72 4 13 3 48 2 73 5 51 4 98 4 40 3 76 3 02 5 75 5 23 4 67 4 04 3 32 6 00 5 49 4 94 4 33 3 61 6 25 5 75 5 21 4 61 3 91 5 94 6 27 5 94 6 27 6 60 5 94...

Страница 39: ...0 41 0 29 0 81 0 69 0 57 0 45 0 33 0 85 0 73 0 61 0 49 0 37 0 89 0 77 0 65 0 53 0 41 0 93 0 81 0 69 0 57 0 45 0 97 0 85 0 73 0 61 0 49 1 01 0 89 0 77 0 65 0 53 2038 2097 2038 2097 2195 2038 2097 2195...

Страница 40: ...SEZ A24AR TH SUZ A24VR TH Rated frequency 96Hz CAPACITY 6 9 kW INPUT 2450 W OUTDOOR W B INDOOR 10 D B Q INPUT 5 Q INPUT 0 Q INPUT 5 Q INPUT 10 Q INPUT 15 Q INPUT 20 Q INPUT 15 21 26 3 72 3 54 3 19 119...

Страница 41: ...re Purpose Protection Cooling Coil frost prevention Heating High pressure protection Heating Defrosting Protection Cooling High pressure protection Compressor LEV Outdoor fan motor 4 way valve Sensor...

Страница 42: ...roperly 3 If the inverter P C board or electronic control P C board is supposed to be defective check the copper foil pattern for disconnection and the components for bursting and discolouration 4 Whe...

Страница 43: ...evaporator temperature thermistor Troble of the condenser evaporator temperature thermistor Troble of the indoor controller board Cause Indoor unit Short cycle of air cycle Dirty air filter Damaged f...

Страница 44: ...rd Cause Outdoor unit Short cycle of air cycle Dirty air filter Damaged fan Abnormal refrigerant Cause Indoor unit Mis connecting of the room temperature thermistor Trouble of the room temperature the...

Страница 45: ...or temperature thermistor Troble of the condenser evaporator temperature thermistor Troble of the indoor controller board Cause Indoor unit Short cycle of air cycle Dirty air filter Damaged fan Abnorm...

Страница 46: ...emperature thermistor liquid Trouble of the indoor controller board Reinsert the connector CN21 Check the resistance value of the thermistor Exchange the indoor controller board Reinsert the connector...

Страница 47: ...onds OFF 4 time flash 2 5 seconds OFF 7 time flash 2 5 seconds OFF Outdoor power system Outdoor thermistors Outdoor control system Over current protection Discharge temperature overheat protection Fin...

Страница 48: ...ommunication failure between the outdoor electronic control P C board and power board occurs twice consecutively Check if the connection wires between noise filter P C board and power board are correc...

Страница 49: ...ts Air filter clogging Amount of gas Short cycle of indoor outdoor air flow Once Lighting Current protection When the outdoor unit input current exceeds 14 5A Twice Lighting High pressure protection W...

Страница 50: ...olor of lead wire Discharge temperature thermistor RT62 Measure the resistance with a tester Before measurement hold the thermistor with your hands to warm it up Part temperature 0 C 40 C Normal 150 k...

Страница 51: ...erature 10 C 40 C Compressor MC W U V WHT RED BLK Measure the resistance between lead wires using a tester Part temperature 10 C 40 C Outdoor fan motor MF Measure the resistance using a tester Part te...

Страница 52: ...e inverter is normal by measuring the balance of voltage between terminals Operation method Start cooling or heating operation by pressing the EMERGENCY OPERATION switch on the indoor unit test run mo...

Страница 53: ...EST button twice on the remote controller Test run mode Measurement Measure the time from the start of outdoor fan running to the stop of the inverter due to over current Judgement For reference 0 10...

Страница 54: ...lace the power P C board Replace the 4 way valve CN721 Power P C board soldered side Disconnect connector CN61 between compressor and power transistor module SLZ Turn ON the power supply and press the...

Страница 55: ...er to page 50 Replace the power P C board Rectify indoor outdoor connecting wire No Replace the outdoor fan motor No Yes Indoor outdoor connecting wire Replace the indoor controller board Disconnect t...

Страница 56: ...ermentioned operations 1 Turn OFF the power supply and turn ON again 2 Press the RESET button on the remote controller Turn ON the power supply 1 During pressing both the OPERATION SELECT button and t...

Страница 57: ...o indicate the failure mode Reconnect the indoor outdoor connecting wire Remove the short circuit between indoor terminal block N and 3 Turn ON the power supply Press the EMERGENCY OPERATION switch Is...

Страница 58: ...or 52C on the indoor controller board turns ON 3 minutes later Turn OFF the power supply and then turn ON again Press the TEST button twice After 3 minutes is there approximate 230V AC between outdoor...

Страница 59: ...seconds to 5minutes refrigerant circuit defective 5 minutes or more normal Measure the voltage between each lead wire leading to the compressor U BLK V WHT V WHT W RED W RED U BLK Output voltage COOL...

Страница 60: ...upply start EMERGENCY OPERATION Thermistor Discharge temperature thermistor Defrost thermistor Outdoor heat exchanger temperature thermistor Fin temperature thermistor Symbol RT61 RT62 RT68 RT65 Conne...

Страница 61: ...board Is there normal resistance to R V coil Start 1 Disconnect the lead wire leading to the compressor 2 3 minutes after turning on the power supply start EMERGENCY OPERATION in COOL mode Is there v...

Страница 62: ...onic control P C board and turn on the power supply Rotate the outdoor fan motor manually and measure the voltage of CN931 Between 1 and 5 Between 2 and 5 Between 3 and 5 Is the resistance between eac...

Страница 63: ...P C board Replace the noise filter P C board Is fuse F912 blown Is the input voltage to the power board 230V AC Replace the fuse Replace the reactor T T Check of LEV No Yes No Yes Start Turn on power...

Страница 64: ...supply Press the EMERGENCY OPERATION switch Is there amplitude of 5 to 10V DC between outdoor terminal block N and 3 after 3 minutes for confirmation of serial signal light up or OFF Is mis wiring ind...

Страница 65: ...type refer to service manual OC303 Is mis wiring indicated when the contactor 52C on the indoor controller board turns ON 3 minutes later Yes No Reinstall either the unit or the light each other away...

Страница 66: ...thermistor RT64 CN642 Back side of unit Front side of unit 280V 370V DC 230V AC 20 10 0 10 20 30 40 0 10 20 30 40 50 60 70 80 90 100 Temperature Ambient temperature thermistor RT65 Defrost thermistor...

Страница 67: ...Connecting wire with inverter P C board CN726 230V AC R V coil CN721 Output to drive outdoor fan motor CN771 230V AC 230V AC Back side of unit Front side of unit SUZ A09VR TH SUZ A12VR TH Power P C bo...

Страница 68: ...D CN702 Signal reception From power board 5V DC pulse wave GND power board CN781 CN795 12V DC pulse wave LEV 20 10 0 10 20 30 40 100 90 80 70 60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 200 180 160...

Страница 69: ...R TH SUZ A24VR TH Noise filter P C board R V coil 230V AC 230V AC 50Hz Input 230V AC 50Hz Output Power board CN901 Electronic control board F912 FUSE 3 15A 250V NR63 VARISTOR F911 FUSE 1A 250V CN902 C...

Страница 70: ...ct to the earth CN5 Primary current detection Connect to the noise filter CN2 Connect to the controller board 1 5 Signal transmission To electronic control P C board 5V DC pulse wave 2 5 Zero cross si...

Страница 71: ...rminal and work Terminal with lock mechanism Detaching points Connector Sleeve Locking lever OPERATING PROCEDURE PHOTOS Photo 1 1 Removing the cabinet 1 Remove the screws fixing the top panel Photo 1...

Страница 72: ...rews fixing the relay panel Photo 3 6 Remove the inverter assembly Photo 3 7 Disconnect all connectors and lead wires on the inverter P C board Photo 4 8 Remove the inverter P C board from the inverte...

Страница 73: ...el Refer to 1 2 Disconnect the indoor outdoor connecting wire and remove the back panel Refer to 1 3 Remove the inverter assembly Refer to 2 4 Pull out the defrost thermistor from its holder Photo 6 5...

Страница 74: ...nd 4 way valve 1 Remove the top panel cabinet and service panel Refer to 1 2 Disconnect the indoor outdoor connecting wire and remove the back panel Refer to 1 3 Remove the inverter assembly Refer to...

Страница 75: ...r 7 Remove the screws of the front panel 8 Remove the front panel 9 Remove the screws of the back panel 10 Remove the back panel Photo 2 Photo 1 Photo 3 Screw of the top panel Screws of the cabinet Sc...

Страница 76: ...panel 6 Remove the inverter assembly 7 Disconnect all connectors and lead wires on the electronic control P C board 8 Remove the electronic control P C board from the inverter assembly 9 Remove the s...

Страница 77: ...rmistor discharge temper ature thermistor and outdoor heat exchanger tem perature thermistor 1 Remove the top panel cabinet and service panel Refer to 1 2 Remove the back panel Refer to 1 3 Remove the...

Страница 78: ...o 9 6 Remove the compressor nuts 7 Remove the compressor 8 Detach the welded part of 4 way valve and pipe Photo 8 NOTE Before using a burner reclaim gas from the pipes until the pressure gauge shows 0...

Страница 79: ...1 E02 838 290 E02 838 900 E02 839 900 E02 065 506 E02 838 661 E02 838 662 E02 838 245 E02 838 233 E02 838 640 E02 838 493 E02 838 961 E02 838 293 E02 838 515 E02 838 523 E02 838 297 E02 838 630 E02 83...

Страница 80: ...38 306 E02 838 308 E02 735 241 E02 735 382 E02 838 374 E07 146 451 E07 147 451 1 2 3 4 5 6 7 8 9 Symbol in Wiring Diagram Q ty unit DEFROST DISCHARGE 250V 20A 3P Including heat sink and RT64 Including...

Страница 81: ...hole Soft vinyl chloride hose of 25mm inside diameter SUZ A09VR TH SUZ A12VR TH 14 3 DRAIN SOCKET Symbol in Wiring Diagram Q ty unit SUZ A09VR TH SUZ A12VR TH Remarks Parts No Parts Name E02 838 704...

Страница 82: ...82 4 17 1 12 9 11 2 5 6 7 8 13 18 20 21 22 23 26 27 28 3 SUZ A18VR TH SUZ A24VR TH 14 4 OUTDOOR UNIT STRUCTURAL PARTS ELECTRICAL PARTS AND FUNCTIONAL PARTS 10 14 15 16 19 25 24...

Страница 83: ...CABINET HANDLE FAN GUARD COMPRESSOR RUBBER SET COMPRESSOR STOP VALVE GAS STOP VALVE GAS STOP VALVE LIQUID EXPANSION VALVE EXPANSION VALVE COIL R V COIL 4 WAY VALVE VALVE COVER SERVICE PANEL OUTDOOR EL...

Страница 84: ...OC304 REVISED EDITION A PDF 8 Distributed in Mar 2004 No OC304 PDF 8 Made in Japan New publication effective Jun 2004 Specifications subject to change without notice SUZ A18VR TH SUZ A24VR TH 14 5 AC...

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