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Daikin VRV II-Q RQYQ8-48PY1B, Руководство по обслуживанию

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Daikin VRV II-Q RQYQ8-48PY1B Скачать руководство пользователя страница 181

SiBE341027

Troubleshooting by Remote Controller

Service Diagnosis

171

Troubleshooting

NO

YES

YES

YES

YES

NO

Caution

Be sure to turn off power switch before connect or disconnect connector, 
or parts damage may be occurred.

Diagnosis Flow 3

Diagnosis Flow 4

Replace the outdoor unit main 
PCB.

Check the model of the outdoor 
unit.

Replace the spare PCB.

Check if the unit 

is not connected 

to outdoor units 

of different 

models.

Check if the 

outdoor unit PCB is 
replaced with spare 

PCB.

Confirmation of error 3 Confirmation of error 4

Confirmation of error 3 Confirmation of error 4

NO

Is the setting of spare 

PCB correct?

Correct the setting to reset the 
power.

Replace the outdoor unit main PCB 
(A1P).

NO

Multi-connection?

Replace the outdoor unit main 
PCB.

Содержание VRV II-Q RQYQ8-48PY1B

Страница 1: ...Heat Pump R 410A 50Hz RQYQ8 48PY1B SiBE341027...

Страница 2: ...door Units 6 4 Capacity Range 7 5 Features 9 5 1 Introduction 9 5 2 Benefits of System Replacement 10 5 3 Procedure of Reuse of Existing Piping 12 5 4 Guidelines for Reuse of Existing Refrigerant Pipi...

Страница 3: ...Motor Overcurrent Lock 112 2 8 Outdoor Unit Fan Motor Abnormality 113 2 9 Electronic Expansion Valve Coil Abnormality Y1E Y3E 116 2 10 Abnormal Discharge Pipe Temperature 118 2 11 Humidity Alarm 120 2...

Страница 4: ...rror between Main and Sub Remote Controllers 166 2 37 Transmission Error between Indoor and Outdoor Units in the Same System 167 2 38 Improper Combination of Indoor and Outdoor Units Indoor Units and...

Страница 5: ...er cable plug from the plug socket before disassembling the equipment for repair Working on the equipment that is connected to the power supply may cause an electrical shock If it is necessary to supp...

Страница 6: ...ctrical shock Do not clean the air conditioner by splashing water Washing the unit with water may cause an electrical shock Be sure to provide the grounding when repairing the equipment in a humid or...

Страница 7: ...at generation or fire When wiring between the indoor and outdoor units make sure that the terminal cover does not lift off or dismount because of the cable If the cover is not mounted properly the ter...

Страница 8: ...ent children from swallowing it If a child swallows the coin battery see a doctor immediately Warning Caution Installation of a leakage breaker is necessary in some cases depending on the conditions o...

Страница 9: ...sure to install the packing and seal on the installation frame properly If the packing and seal are not installed properly water may enter the room and wet the furniture and floor For unitary type onl...

Страница 10: ...Q series Heat Pump System Daikin offers a wide range of models to respond to building and office air conditioning needs We are confident that customers will be able to find the models that best suit t...

Страница 11: ...ir Treatment Equipment 3 2 External Appearance 4 2 1 Indoor Units 4 2 2 Outdoor Units 5 2 3 Air Treatment Equipment 5 3 Combination of Outdoor Units 6 4 Capacity Range 7 5 Features 9 5 1 Introduction...

Страница 12: ...Capacity index 20 25 31 25 40 50 62 5 80 100 125 140 200 250 Ceiling Mounted Cassette Type Round Flow FXFQ 25P9 32P9 40P9 50P9 63P9 80P9 100P9 125P9 VEB Ceiling Mounted Cassette Compact Multi Flow Ty...

Страница 13: ...e 220 240 220V 50 60Hz V1 1 phase 220 240V 50Hz Series Model Name Power Supply Heat Pump RQYQ 8P 10P 12P 14P 16P 18P 20P Y1B 22P 24P 26P 28P 30P 32P 34P 36P 38P 40P 42P 44P 46P 48P Series Model name P...

Страница 14: ...CQ80M8V3B FXCQ125M8V3B Wall mounted type FXAQ20PV1 FXAQ25PV1 FXAQ32PV1 FXAQ40PV1 FXAQ50PV1 FXAQ63PV1 Ceiling mounted cassette corner type FXKQ25MAVE FXKQ32MAVE FXKQ40MAVE FXKQ63MAVE Floor standing typ...

Страница 15: ...th DX coil and humidifier GM HRV units VAM series VAM150FAVE VAM250FAVE VAM350FAVE VAM500FAVE VAM650FAVE VAM800FAVE VAM1000FAVE VAM1500FAVE VAM2000FAVE 8 10 12HP 14 16HP 18 20 22 24HP 26 28HP 30 32HP...

Страница 16: ...nal Daikin Outdoor Unit Multi Connection Piping Kit is required System Capacity Number of units Module Outdoor Unit Multi Connection Piping Kit Option 8 10 12 14 16 8HP 1 10HP 1 12HP 1 14HP 1 16HP 1 1...

Страница 17: ...HP Capacity index Model name Combination Outdoor unit multi connection piping kit 1 Total capacity index of connectable indoor units 2 3 Maximum number of connectable indoor units Combination 50 100 1...

Страница 18: ...QYQ8PY1B 50 130 13 10 250 RQYQ10PY1B 16 12 300 RQYQ12PY1B 19 14 350 RQYQ14PY1B 22 16 400 RQYQ16PY1B 26 Double outdoor units 18 450 RQYQ18PY1B 29 20 500 RQYQ20PY1B 32 22 550 RQYQ22PY1B 35 24 600 RQYQ24...

Страница 19: ...mooth replacement of air conditioning with less effect on operations and users in the building Installation process for replacement with Refrigerant recovery and units removal Refrigerant recovery and...

Страница 20: ...e Installation space Compact design enables the effective use of space taken up by existing machinery Significantly more compact outdoor unit enables the effective use of limited space Design flexibil...

Страница 21: ...ple to deploy even in long wide buildings with many small rooms Pipe size 28 6 12 7 Pipe size 28 6 12 7 Before replacement After replacement 10 HP VRV III Q for replacement use enables the system capa...

Страница 22: ...ster oil Check whether the pipe size piping length actual equivalent length height difference design pressure of local piping 3 3MPa or more are within the range of operational conditions Also check t...

Страница 23: ...wire with 0 75 to 1 25 mm2 for the cool heat selector New wiring work is needed Check the voltage the number of phases and breaker capacity of the existing power supply When using the existing power s...

Страница 24: ...Use the insulation of both liquid and gas pipes When replacing K A series or previous version please confirm piping is insulation of both liquid and gas pipes Refrigerant oil SUNISO MS HAB Barrel Fre...

Страница 25: ...r grade O type 1 2H type in the table indicate the material types specified in JIS H3300 In case of bending O material set the round bending to 3xD or more D Outer Diameter 1 2H materials are calculat...

Страница 26: ...X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X...

Страница 27: ...SiBE341027 Specifications 17 Part 2 Specifications 1 Specifications 18 1 1 Outdoor Units 18...

Страница 28: ...otor Output Number of Units kW 4 5 1 1 4 4 5 1 Starting Method Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 75 1 Airflow Rate m min 180 185 Drive Direct Drive Di...

Страница 29: ...ut Number of Units kW 3 3 4 5 1 1 6 4 5 4 5 1 Starting Method Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 35 2 Airflow Rate m min 200 233 Drive Direct Drive Dir...

Страница 30: ...aled Scroll Type Displacement m h 13 34 10 53 10 53 Number of Revolutions r min 6300 2900 2900 Motor Output Number of Units kW 2 7 4 5 4 5 1 Starting Method Soft Start Fan Type Propeller Fan Motor Out...

Страница 31: ...r min 7980 6300 2900 7980 6300 2900 Motor Output Number of Units kW 4 5 1 1 4 4 5 1 4 5 1 3 3 4 5 1 Starting Method Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 1 0...

Страница 32: ...min 6300 2900 6300 2900 6300 2900 6300 2900 Motor Output Number of Units kW 1 4 4 5 1 3 3 4 5 1 3 3 4 5 1 3 3 4 5 1 Starting Method Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Motor Ou...

Страница 33: ...in 6300 2900 6300 2900 2900 6300 2900 6300 2900 2900 Motor Output Number of Units kW 1 4 4 5 1 2 7 4 5 4 5 1 3 3 4 5 1 2 7 4 5 4 5 1 Starting Method Soft Start Soft Start Fan Type Propeller Fan Propel...

Страница 34: ...6300 2900 2900 6300 2900 2900 6300 2900 2900 6300 2900 2900 Motor Output Number of Units kW 1 6 4 5 4 5 1 2 7 4 5 4 5 1 2 7 4 5 4 5 1 2 7 4 5 4 5 1 Starting Method Soft Start Soft Start Fan Type Prop...

Страница 35: ...0 2900 6300 2900 6300 2900 2900 6300 2900 6300 2900 6300 2900 2900 Motor Output Number of Units kW 1 4 4 5 1 1 4 4 5 1 1 6 4 5 4 5 1 1 4 4 5 1 1 4 4 5 1 2 7 4 5 4 5 1 Starting Method Soft Start Soft S...

Страница 36: ...0 2900 6300 2900 6300 2900 2900 6300 2900 6300 2900 6300 2900 2900 Motor Output Number of Units kW 1 4 4 5 1 3 3 4 5 1 2 7 4 5 4 5 1 3 3 4 5 1 3 3 4 5 1 2 7 4 5 4 5 1 Starting Method Soft Start Soft S...

Страница 37: ...2900 6300 2900 2900 6300 2900 2900 6300 2900 6300 2900 2900 6300 2900 2900 Motor Output Number of Units kW 1 4 4 5 1 2 7 4 5 4 5 1 2 7 4 5 4 5 1 3 3 4 5 1 2 7 4 5 4 5 1 2 7 4 5 4 5 1 Starting Method...

Страница 38: ...900 2900 6300 2900 2900 6300 2900 2900 6300 2900 2900 6300 2900 2900 6300 2900 2900 Motor Output Number of Units kW 1 6 4 5 4 5 1 2 7 4 5 4 5 1 2 7 4 5 4 5 1 2 7 4 5 4 5 1 2 7 4 5 4 5 1 2 7 4 5 4 5 1...

Страница 39: ...ant Circuit 1 Refrigerant Circuit 30 1 1 RQYQ8PY1B 30 1 2 RQYQ10 12PY1B 32 1 3 RQYQ14 16PY1B 34 2 Functional Parts Layout 36 2 1 RQYQ8PY1B 36 2 2 RQYQ10 12PY1B 37 2 3 RQYQ14 16PY1B 38 3 Refrigerant Fl...

Страница 40: ...ssure sensor Used to detect low pressure 22 S1PH High pressure switch For INV In order to prevent the increase of high pressure when a malfunction occurs this switch is activated at high pressure of 4...

Страница 41: ...SOLENOID VALVE CHECK VALVE CHECK VALVE SOLENOID VALVE PRESSURE SENSOR HIGH LIQUID PIPE FUSIBLE PLUG REFRIGERANT REGULATOR SOLENOID VALVE CHECK VALVE CHECK VALVE CHECK VALVE SOLENOID VALVE SOLENOID VAL...

Страница 42: ...re of liquid pipe 22 S1NPL Low pressure sensor Used to detect low pressure 23 S1PH High pressure switch For INV In order to prevent the increase of high pressure when an error occurs this switch is ac...

Страница 43: ...ALVE HIGH PRESSURE SENSOR SOLENOID VALVE CHECK VALVE ELECTRONIC EXPANSION VALVE PRESSURE REGULATING VALVE ABSOLUTE PRESSURE TYPE SOLENOID VALVE FUSIBLE PLUG ELECTRONIC EXPANSION VALVE DOUBLE PIPE HEAT...

Страница 44: ...pressure 25 S1PH High pressure switch For INV In order to prevent the increase of high pressure when an error occurs this switch is activated at high pressure of 4 0 MPa or more to stop the compresso...

Страница 45: ...HECK VALVE SOLENOID VALVE OIL SEPARATOR OIL SEPARATOR OIL SEPARATOR HIGH PRESSURE SWITCH HIGH PRESSURE SWITCH HIGH PRESSURE SWITCH SOLENOID VALVE SOLENOID VALVE HIGH PRESSURE SENSOR CAPILLARY TUBE PIP...

Страница 46: ...changer outlet R5T Solenoid valve Receiver gas vent Y8S Inverter fan M1F Four way valve Heat exchanger Y3S Thermistor Receiver liquid level R2T Solenoid valve Bypass Y2S High pressure sensor Liquid pi...

Страница 47: ...valve Hot gas Y1S Thermistor Refrigerant regulator liquid pipe R4T High pressure switch For STD 1 S2PH Thermistor Outdoor air R1T High pressure switch For INV S1PH Crankcase heater E2HC Standard comp...

Страница 48: ...ator liquid pipe Y12S Solenoid valve Oil regulator outlet Y9S High pressure sensor S1NPH Low pressure sensor S1NPL High pressure switch For STD 2 S3PH Thermistor Outdoor air R1T High pressure switch F...

Страница 49: ...R ABSOLUTEPRESSURETYPE PRESSUREREGULATINGVALVE M FAN SV HEAT EXCHANGER M FAN LIQUID PIPE LIQUID PIPE FOUR WAY VALVE S4PH S1NPH SV CHECKVALVE CHECK VALVE CHECK VALVE FILTER FILTER FILTER FILTER SV S3PH...

Страница 50: ...WAY VALVE S4PH S1NPH SV CHECKVALVE CHECK VALVE CHECK VALVE FILTER FILTER FILTER FILTER SV S3PH S2PH S1PH FILTER FILTER FILTER SV SV S1NPL COMPRESSOR COMPRESSOR COMPRESSOR STD2 INV STD1 GAS PIPE FILTER...

Страница 51: ...HEAT EXCHANGER M FAN LIQUID PIPE LIQUID PIPE FOUR WAY VALVE S4PH S1NPH SV CHECKVALVE CHECK VALVE CHECK VALVE FILTER FILTER FILTER FILTER SV S3PH S2PH S1PH FILTER FILTER FILTER SV SV S1NPL COMPRESSOR C...

Страница 52: ...art 4 Function 1 Function General 43 1 1 Operation Mode 43 2 Detailed Control Functions 44 2 1 Stop Operation 44 2 2 Standby 44 2 3 Startup Control 45 2 4 Normal Operation 46 2 5 Protection Control 51...

Страница 53: ...rmal Operation 2 Compressor PI Control 4 Compressor Step Control 5 Electronic Expansion Valve PI Control 6 Step Control of Outdoor Unit Fans 3 Outdoor Unit Rotation 1 Oil Return Operation 2 Defrost Op...

Страница 54: ...and piping switch retain the condition before they were stopped 2 2 Standby 2 2 1 Restart Standby Used to forcedly stop the compressor for a period of 5 minutes in order to prevent the frequent ON OF...

Страница 55: ...l in Heating Operation Ending conditions OR A lapse of 130 sec Tc 48 C Pe 0 54Pa Pc Pe 0 4MPa 0 Hz 0 pls Step 4 52 Hz 0 pls 10 sec Ta 20 C OFF Ta 20 C Step 4 1 Step 15 sec when Pc 2 2 MPa 1 Step 15 se...

Страница 56: ...oid valve Receiver gas vent Y8S Y8S Y8S OFF OFF Solenoid valve Circuit of oil return Y5S Y5S Y5S ON ON Solenoid valve Close liquid pipe for stopped outdoor unit Y6S Y6S Y6S OFF ON Solenoid valve Main...

Страница 57: ...operating frequency etc On multi outdoor unit systems this control is made according to values of the first priority unit which is detected with the pressure sensor Heating operation Controls compress...

Страница 58: ...section are the names for installation They are determined in installation work and not changed thereafter These names are different from master unit and slave unit for control The outdoor unit conne...

Страница 59: ...Hz ON 28 104Hz ON 29 116Hz ON 30 124Hz ON 31 133Hz ON 32 143Hz ON 33 158Hz ON 34 177Hz ON 35 189Hz ON 36 202Hz ON 37 210Hz ON RQYQ14 16PY1B STEP No INV STD1 STD2 1 52Hz OFF OFF 2 57Hz OFF OFF 3 62Hz O...

Страница 60: ...re or capacity precedence mode Control at a low outdoor temperature during cooling Secure the liquid pressure and circulating rate in the indoor unit through high pressure control with the outdoor fan...

Страница 61: ...FF INV compressor 52 Hz Pc 3 64 MPa Restart standby 2 times per 30 minutes at max Stop due to error E3 displayed HPS 4 0 MPa is activated INV compressor 3 step down INV compressor 1 step up Pc 3 47 MP...

Страница 62: ...erformed in the entire system Normal operation All STD compressors stop Solenoid valve hot gas Y1S ON Restart standby 3 times per 60 minutes at max Stop due to error E4 displayed Pe 0 34 MPa 1 0 20 MP...

Страница 63: ...ressor 2 OFF STD compressor 1 OFF Solenoid valve hot gas Y1S ON Restart standby 3 times per 60 minutes at max Stop due to error E4 displayed Low pressure standby 4 times per 60 minutes at max Pe 0 12...

Страница 64: ...C HTdi 120 C continues for 10 minutes Normal operation INV compressor 1 step down Compressor 62Hz ON OFF Compressor 62Hz OFF OFF Restart standby 10 minutes 2 times per 100 minutes at max Stop due to e...

Страница 65: ...the following sequence INV Comp 1 step down INV Comp 1 step up INV current value 26 5 A After 15 sec INV current value 27 6A continues for 260 seconds Restart standby 3 times per 60 min at max 4 time...

Страница 66: ...ontrol is used to prevent abnormal heating due to overcurrent to the compressor resulting from failures of STD compressor such as locking STD compressor ON CT detection current value 28 8A Demand to o...

Страница 67: ...unit fan M1F M1F M1F M2F Fan control in normal cooling Heat exchanging mode Four way valve Y3S Y3S Y3S OFF Electronic expansion valve Main Y1E Y1E Y1E 480 pls Electronic expansion valve Main 2 Y2E El...

Страница 68: ...expansion valve Main Y1E Y1E Y1E 480 pls Electronic expansion valve Main 2 Y2E Electronic expansion valve Subcooling Y2E Y2E Y3E 0 pls Solenoid valve Hot gas Y1S Y1S Y1S ON Solenoid valve Receiver ga...

Страница 69: ...way valve Y3S Y3S Y3S OFF Electronic expansion valve Main Y1E Y1E Y1E 480 pls Electronic expansion valve Main 2 Y2E Electronic expansion valve Subcooling Y2E Y2E Y3E 0 pls Solenoid valve Hot gas Y1S Y...

Страница 70: ...t Operation Part 5 Test Operation 1 Test Operation 61 1 1 Procedure and Outline 61 1 2 Check Operation 64 1 3 Checking in Normal Operation 67 2 Field Setting from Outdoor Unit 68 2 1 Field Setting fro...

Страница 71: ...aken against decreased insulation resistance in the compressor If the compressor is left to stand for an extended period of time after the refrigerant charge with the stop valve open and the power sup...

Страница 72: ...door unit capacity Model A B kg C kg 100 100 RQYQ 8PY1B 1 00 6 8kg 0 0kg 0 0kg 10PY1B 7 9kg 12PY1B 9 3kg 14 16PY1B 14 1kg R Total length of 22 2 mm liquid pipe 0 37 Total length of 9 5 mm liquid pipe...

Страница 73: ...ield settings with outdoor unit PCB LED display Default status before delivery Micro computer operation monitor MODE HAP l l l l l H1P h h h h h H2P h h h h h H3P k k h h h H4P h h h h h H5P h h h h h...

Страница 74: ...tting mode 1 verify that LED H2P is off normal If H2P is on error use the remote control to check the details of the error and correct the trouble The system is checking for indoor unit errors If H2P...

Страница 75: ...LED display is normal press the TEST button BS4 again h l h h k k h h l h h k k k h l h k h h h Waits for conditions to stabilize after restart Contamination operation 30 60 minutes Up to 1 hour may...

Страница 76: ...r unit system has been connected in a multi outdoor unit system Change to individual piping and disconnect the wiring from the multi outdoor unit terminals Q1 Q2 U9 There is trouble at another indoor...

Страница 77: ...hen checking normal operation If any abnormal noise occurs due to liquid compression in the compressor or another cause stop operation immediately Then energize the crankcase heater for a sufficient p...

Страница 78: ...ing to ON with No 29 B The low noise operation aforementioned is enabled in low night noise operation mode Start time Possible to select in the range of 20 00 to 24 00 hours End time Possible to selec...

Страница 79: ...etting mode 2 to NONE 7 Emergency operation If the compressor has a failure used to prohibit the operation of compressor s concerned or outdoor unit s concerned and to conduct emergency operation of t...

Страница 80: ...se of a Cool Heat selector equipped with the outdoor unit OFF Factory setting of spare PCB COOL HEAT select setting is not made with the use of a Cool Heat selector equipped with the outdoor unit DS1...

Страница 81: ...dify the operating status and to set program addresses etc Usually used in servicing the system e Monitor mode H1P blinks Used to check the program made in Setting mode 2 Mode changing procedure 1 LED...

Страница 82: ...press the MODE BS1 button to set the system to Setting mode 1 Normally Setting mode 1 is set In case of other status press MODE BS1 button one time and set to Setting mode 1 Check the system for each...

Страница 83: ...Refrigerantrecovery vacuuming mode setting Sets to refrigerant recovery or vacuuming mode 22 Low night noise setting Sets automatic low night noise operation in a simple way The operating time is base...

Страница 84: ...ny defective part in multi outdoor unit system Since the comfortable environment is extremely impaired prompt replacement of the part is required 39 Emergency operation Setting for the slave unit 1 an...

Страница 85: ...k h h h Low Level L khhh hhk Normal Level M khhh hkh High khhh hkk High khhh khh High Level H khhh khk High khhh kkh High khhh kkk 9 Tc setting k h h k h h k Low khhh hhk Normal khhh hkh High khhh khh...

Страница 86: ...acity priority setting k h k k k h k OFF khhh hhk ON khhh hkh 30 Demand setting 1 k h k k k k h 60 demand khhh hhk 70 demand khhh hkh 80 demand khhh khh 32 Normal demand setting k k h h h h h OFF khhh...

Страница 87: ...l h h h k k h 7 Number of connected zone units Fixed to 0 l h h h k k k 8 Number of outdoor units 2 l h h k h h h 11 Number of zone units l h h k h k k 12 Number of terminal units 3 l h h k k h h Low...

Страница 88: ...ws The No 1 cool heat unified address is expressed as a binary number consisting of the lower 6 digits 0 63 In c the address is 010110 binary number which translates to 16 4 2 22 base 10 number In oth...

Страница 89: ...ultaneously in accordance with unified master outdoor unit by cool heat select remote controller g Set cool heat at all outdoor unit systems simultaneously for each outdoor unit external control adapt...

Страница 90: ...not there is outdoor outdoor unit wiring Set outdoor unit PCB DS1 1 to OUT factory setting Set C H select to IND individual for Setting mode 1 factory setting MODE C H SELECT IND MASTER TEST DEMAND L...

Страница 91: ...control adaptors for outdoor unit are used and cool heat is selected for each external control adaptor for outdoor unit use setting mode 2 and set DS1 and DS2 on the external control adaptors for outd...

Страница 92: ...is selected for each external control adaptor for outdoor unit use setting mode 2 and set DS1 and DS2 on the external control adaptors for outdoor unit and the unified cool heat address on the outdoor...

Страница 93: ...0 Outdoor unit unified slave No 0 External control adaptor for outdoor unit No 2 C H unified address Outdoor unit unified master No 2 Outdoor unit unified slave No 2 Outdoor unit unified slave No 2 Ex...

Страница 94: ...l adaptor for outdoor unit C H SELECT C H SELECT C H SELECTOR IND MASTER SLAVE MODE TEST L N O P DEMAND CENTRAL C H SELECTOR OFF ON BOTH C H DE FUNCTION CENTRAL NO TERMINAL ADDRESS C H OUT MULTI OUT I...

Страница 95: ...rmal operation mode B When the low noise operation is carried out automatically at night The external control adaptor for outdoor unit is not required 1 While in Setting mode 2 select the setting cond...

Страница 96: ...d out Use of the external control adaptor for outdoor unit is not required 1 While in Setting mode 2 make setting of the set item No 32 Setting of alternate demand to ON 2 While in Setting mode 2 sele...

Страница 97: ...ted Operation procedure c In setting mode 2 with units in stop mode set Refrigerant recovery Vacuuming mode to ON The respective expansion valve of indoor and outdoor units are fully opened and some o...

Страница 98: ...ess the SET button BS2 19 times 3 Press the RETURN button BS3 once 4 Press the SET button BS2 once 5 Press the RETURN button BS3 twice 6 Press the MODE button BS1 once In order to set the STD 2 compre...

Страница 99: ...DE button BS1 for a period of 5 seconds or more 2 Press the SET button BS2 38 times 3 Press the RETURN button BS3 once 4 Press the SET button BS2 once 5 Press the RETURN button BS3 twice 6 Press the M...

Страница 100: ...or Abnormality 132 2 20 Inverter PCB Abnormality 134 2 21 Inverter Radiation Fin Temperature Rise 136 2 22 Momentary Overcurrent of Inverter Compressor 137 2 23 Overcurrent Abnormal of Inverter Compre...

Страница 101: ...1027 Service Diagnosis 91 2 40 Transmission Error between Centralized Controller and Indoor Unit 173 2 41 System is not Set yet 176 2 42 System Error Refrigerant System Address Undefined 177 2 43 Chec...

Страница 102: ...These symptoms indicate that the system is controlled so as not to put unreasonable loads on the system Normal operation The system will automatically start operation after a lapse of five minutes Pr...

Страница 103: ...L operation so that no one gets cold air Furthermore if fan operation mode is selected when other indoor unit is in heating operation the system will be brought to fan LL operation Normal operation 9...

Страница 104: ...that the compressor changes the operating frequency Normal operation 12 Dust comes out from the system Dust comes out from the system when it restarts after the stop for an extended period of time Dus...

Страница 105: ...used operation to stop Refer to P 99 for error code and error contents Note 1 Pressing the INSPECTION TEST button will blink the check indication 2 While in service mode holding down the ON OFF button...

Страница 106: ...rective action Operation Status Display Abnormal shutdown The system stops operating The operation lamp green starts to blink The message Error Press Menu button will appear and blink at the bottom of...

Страница 107: ...til a buzzer remains ON The continuous buzzer indicates that the error code is confirmed Continuous beep No abnormality 3 Press the MODE selector button The left 0 upper digit indication of the error...

Страница 108: ...ressed 1 Press INSPECTION TEST button If no button is pressed for 1 minute equipment returns to normal status When MODE selector button is pressed or no button is pressed for 1 minute equipment return...

Страница 109: ...mality 130 JC l Low pressure sensor abnormality 132 L1 l Inverter PCB abnormality 134 L4 l Inverter radiation fin temperature rise 136 L5 l Momentary overcurrent of inverter compressor 137 L8 l Overcu...

Страница 110: ...er compressor motor lock INV compressor lock detected E5 STD compressor motor overcurrent Lock STD 1 E6 STD 2 Outdoor unit fan motor abnormality Defective fan motor 1 E7 Defective fan motor 2 Electron...

Страница 111: ...h l l k h h h h h l k k h h l k h h h h h l k k h l l k h h h h h l k k l h F3 l l h h l h l l h k h h l l l k h h h h h l k k h h F6 l h k h l l h l k h h h h h l k k h h l l H3 l l h h l h h 1 H7 l...

Страница 112: ...B INV transmission data abnormality LC INV transmission abnormality Inverter over ripple protection Unbalanced INV power supply voltage P1 INV radiation fin thermistor and related abnormality INV fin...

Страница 113: ...h h U0 l l h l h h h l h k h h h h l k h h h h h l k k h h l l U1 l h k h h h l l k h h h h h l k k h h l l l k h h h h h l k k h h l l U2 l h k h h l h l k h h h h h l k k h h l l l k h h h h h l k k...

Страница 114: ...ion between the indoor unit and the outdoor unit are not normal Supposed Causes Defective outdoor unit PCB A1P Defective connection of inside outside relay wires Troubleshooting Caution Be sure to tur...

Страница 115: ...witch 4 0MPa Operating pressure of pressure switch 3 3MPa Supposed Causes Defective high pressure sensor Defective connection of connector for high pressure switch or pressure switch Defective high pr...

Страница 116: ...nd pressure switch Error Decision Conditions When the contact of the high pressure switch or pressure switch opens Reference Operating pressure of high pressure switch Operating pressure 4 0MPa Reset...

Страница 117: ...eration using the remote controller and then restart the operation NO NO NO NO NO YES YES NO NO YES YES YES YES Rectify defective points if any Replace the high pressure switch and pressure switch Rep...

Страница 118: ...etection Abnormality is detected by the pressure value of the low pressure sensor with the outdoor unit main PCB A1P Error Decision Conditions Error is generated when the low pressure is dropped under...

Страница 119: ...1 Mount a pressure gauge on the low pressure service port 2 Reset the operation using the remote controller and then restart the operation Are the characteristics of the low pressure sensor normal 1...

Страница 120: ...om UVW line connected between the inverter and compressor and the error is detected when any abnormality is observed in the phase current waveform Error Decision Conditions This error will be output w...

Страница 121: ...pressure not less than 0 5 MPa CHECK 4 Is the power transistor normal NO YES NO YES NO YES NO YES YES NO YES YES NO NO NO YES YES YES NO NO YES NO Local factor Open the stop valve Replace the relay w...

Страница 122: ...ering due to rough MgS contact 2 Abnormal case The current sensor value is 0 during STD compressor operation The current sensor value is more than 15 0A during STD compressor stop Is the stop valve op...

Страница 123: ...cted by hole IC during the fan motor operation Error Decision Conditions Overcurrent is detected for inverter PCB A4P or fan inverter PCB A5P or A7P System down is caused by 4 times of detection In th...

Страница 124: ...t PCB Check in the monitor mode Turn OFF the power supply and wait for 10 minutes Fan motor1 relay connector X1A X2A or X1A X2A of compressor INV PCB Fan motor1 2 relay connector X3A X4A or X1A X2A of...

Страница 125: ...ses of fan motorisoutofbalance or short circuit between UVW phases CHECK 3 Check fan motor connector signal wire The signal wire short circuits between Vcc and GND and between UVW and GND Put the powe...

Страница 126: ...licable Models RQYQ PY1B Method of Error Detection Check the continuity of electronic expansion valve coil Y1E Error Decision Conditions No current is detected in the common COM when power supply is O...

Страница 127: ...monitor mode When confirmation of error 3 and 4 shows as follows Electronic expansion valve for main Y1E When confirmation of error 3 and 4 shows as follows Electronic expansion valve for refrigerant...

Страница 128: ...detected according to the temperature detected by the discharge pipe temperature sensor Error Decision Conditions When the discharge pipe temperature rises to an abnormally high level 135 C or more Wh...

Страница 129: ...ormal Actually the temperature of discharge pipe is high CHECK 3 Remove the factor of overheat operation Connect the service checker to compare the temperature of discharge pipe by using service check...

Страница 130: ...etected by the temperature and pressure of any part during the cooling operation Error Decision Conditions When the following humidity condition continues for 30 minutes Supposed Causes Defective suct...

Страница 131: ...Replace the suction pipe thermistor Replace the discharge pipe thermistor Check if high pressure sensor property is normal The liquid pipe temperature is low equivalent to the evaporating temperature...

Страница 132: ...arge Disconnection of outdoor air thermistor Disconnection of heat exchanger deicer thermistor Disconnection of liquid pipe thermistor Troubleshooting Refer to P 189 Caution Be sure to turn off power...

Страница 133: ...ure to turn off power switch before connect or disconnect connector or parts damage may be occurred Wait for 10 minutes after unit stops then check the following Is there continuity at the lead wire R...

Страница 134: ...ay H7 Applicable Models RQYQ PY1B Method of Error Detection Detection of abnormal signal from fan motor Error Decision Conditions In case of detection of abnormal signal at starting fan motor Supposed...

Страница 135: ...lows Fan motor 1 M1F When confirmation of error 3 shows as follows Fan motor M2F Explanation for Master unit Slave unit 1 Slave unit 2 System Turn OFF the power supply Is the signal wire connector for...

Страница 136: ...A R1T X18A R1T X18A J3 Discharge pipe thermistor R3T X29A R31T X29A R31T X29A R32T R32T R33T J5 Suction pipe thermistor R8T X11A R8T X11A R8T X11A J6 Heat exchanger deicer thermistor R9T X12A R9T X12A...

Страница 137: ...code Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the outdoor unit sub PCB A2P Replace the high pressure sensor YES NO Replac...

Страница 138: ...SiBE341027 128 Service Diagnosis 2 Voltage measurement point Refer to P 191 Outdoor unit PCB A1P Connector for high pressure sensor Red Red Black White GND Micro computer A D input Measure DC voltage...

Страница 139: ...ensor mounted on the T phase A6P and R phase A8P wire Are the current sensors inversely connected to two STD compressors Is the connector for current sensor connected to X25A X26A on outdoor unit PCB...

Страница 140: ...ection Error is detected from the pressure detected by the high pressure sensor Error Decision Conditions When the high pressure sensor is short circuit or open circuit Not less than 4 22MPa or 0 01MP...

Страница 141: ...high pressure gauge 2 Connect the checker for VRV IfthePCB pressuredetection normal Makea comparison betweenthechecker pressure dataand the voltage characteristics 2 Reset the operation and then rest...

Страница 142: ...ive connection of low pressure sensor Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Arethecharacteristicsofthelow pres...

Страница 143: ...iagnosis 133 Note 1 Voltage measurement point Refer to P 191 Outdoor unit PCB A1P 5V GND Micro computer A D input Make measurement of DC voltage between these wires X31A 4 3 2 1 Red Black White Low pr...

Страница 144: ...t before compressor startup Detect error by current sensor value during synchronized operation at the time of startup Error Decision Conditions When over current is detected at the time of waveform ou...

Страница 145: ...d that the error results from external causes other than failures e g exogenous noises or thunder Is the individual system applied to the outdoor unit Multi system Individual system While in monitor m...

Страница 146: ...ulty radiation from the power unit Blocked air suction port Stained radiation fin High outdoor air temperature NO NO YES NO YES The radiation fin of the inverter PCB concerned exceeded a temperature o...

Страница 147: ...Y1B Method of Error Detection Error is detected from the current flowing in the power transistor Error Decision Conditions When an excessive current 59 1A flows in the power transistor Instantaneous o...

Страница 148: ...ressor lead wires normal Are the wiring and connection to the compressor normal Is the insulation resistance of the compressor 100 k or less Compressor coils are disconnected CHECK 4 Is the power tran...

Страница 149: ...Method of Error Detection Error is detected from the current flowing in the power transistor Error Decision Conditions When the inverter secondary current value is below 1 33 5A and over continues for...

Страница 150: ...ssor coils are disconnected CHECK 4 Is the power transistor normal Error code L8 is displayed again Power OFF NO NO NO YES YES NO YES NO Open the stop valve Replace the compressor lead wires Correct t...

Страница 151: ...sure to turn off power switch before connect or disconnect connector or parts damage may be occurred YES Go on to the next page Starting failure due to aged operation NO Is it the initial time to sta...

Страница 152: ...al NO Cancel the melting state of refrigerant Refrigerant is melting in refrigerant oil The unit is out of power supply for more than 6 hours Is the insulation resistance of the compressor 100k or mor...

Страница 153: ...state between inverter PCB and main PCB by micro computer Error Decision Conditions When the transmission is not carried out in a specified period of time or longer Supposed Causes Incorrect transmis...

Страница 154: ...S NO NO NO YES The LC error recurs Not the LC error Check the error code again Replace the main PCB A1P Replace the inverter PCB A4P YES Are the connectors of the main PCB and inverter PCB all securel...

Страница 155: ...y voltage is detected in PCB Error Decision Conditions When the amplitude of the ripple exceeding 6V is detected Error is not decided while the unit operation is continued P1 will be displayed by pres...

Страница 156: ...are many cases where it gets unbalanced during night time around 6 00PM to 10 00PM Using a device capable of constant recording of power supply voltage record power supply voltage between 3 phases R S...

Страница 157: ...ng the inspection button Supposed Causes Defective radiation fin thermistor Defective inverter PCB Defective inverter compressor Defective fan motor Troubleshooting Caution Be sure to turn off power s...

Страница 158: ...Defective or no field setting after replacing main PCB Troubleshooting YES Replace the outdoor unit main PCB YES YES YES NO Caution Be sure to turn off power switch before connect or disconnect conne...

Страница 159: ...nger Error Decision Conditions In cooling mode Low pressure becomes 0 1MPa or less In heating mode The degree of superheat of suction gas becomes 20 degrees or more SH Ts1 Te Ts1 Temperature detected...

Страница 160: ...changer thermistor R9T normal 3 Is the low pressure 0 1MPa or less 1 Is the characteristics of low pressure sensor normal 2 Replace the low pressure sensor Replace the outdoor unit main PCB A1P Cautio...

Страница 161: ...e Supposed Causes Power supply reverse phase T phase open phase Defective outdoor unit PCB A1P Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts...

Страница 162: ...of voltage of main circuit capacitor built in the inverter PCB and power supply voltage Error Decision Conditions When the voltage aforementioned is not less than 190V Supposed Causes Power supply in...

Страница 163: ...compressor is not more 100k The insulation resistance of fan motor is not more 1M CHECK 4 Has the inverter PCB caused damage Check the condition of the power supply Check if power supply voltage is 3...

Страница 164: ...stantaneous power failure open phase noises or else YES YES YES NO NO NO Stop standby when the compressor startup The U2 error recurs Stop standby before the fan rotates Turn ON the power supply and s...

Страница 165: ...ded when the unit starts operation without check operation Supposed Causes Check operation is not executed Troubleshooting Performs the check operation again and completes the check operation Has the...

Страница 166: ...d when the micro computer detects that the transmission between the indoor and outdoor unit is not normal Error Decision Conditions When transmission is not carried out normally for a certain amount o...

Страница 167: ...voltage between R S terminals on the outdoor unit PCB 400V Is the fuse on the outdoor unit PCB blown Does the normal condition monitor for the micro computer HAP on the outdoor unit PCB blink Does th...

Страница 168: ...m the previous page YES In Confirmation of error 4 LED lamp indicates as follows Start operation of all the indoor units Do all the units indicate U9 Did more than 2 minutes pass since U9 was indicate...

Страница 169: ...Transmission error caused by noise Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred NO NO NO YES NO Replace the indoor u...

Страница 170: ...cision Conditions When transmission is not carried out normally for a certain amount of time Supposed Causes Connection error in connecting wires between outdoor unit and external control adaptor for...

Страница 171: ...esponding to the error code U7 and for Confirmation of error 4 in the monitor mode Confirmation of error 3 Confirmation of error 4 Confirmation of error 3 Confirmation of error 4 Confirmation of error...

Страница 172: ...NO YES NO Correct the connecting wiring with the external control adaptor for outdoor unit Diagnosis Flow 1 Supply the power to the outdoor unit Check if power is supplied to the outdoor units Check...

Страница 173: ...n are duplicated Set the address again Replace the outdoor unit main PCB Supply the power to the outdoor unit Replace the outdoor unit main PCB Connect the power supply wire for the external control a...

Страница 174: ...heck if the outdoor unit is connected to multi system Confirmation of error 3 Check the connection status of connecting wires of the outdoor multi to SLAVE 1 Check if the wiring is disconnected or is...

Страница 175: ...Correct the connecting wires of the outdoor multi and then reset the power supply Replace the outdoor unit main PCB Diagnosis Flow 7 Diagnosis Flow 8 Check the connection status of one of the connect...

Страница 176: ...of time Supposed Causes Transmission error between main and sub remote controller Connection among sub remote controllers Defective remote controller PCB Troubleshooting Caution Be sure to turn off po...

Страница 177: ...her system Defective electronic expansion valve in indoor unit of other system Defective PCB of indoor unit in other system Improper connection of transmission wiring between indoor and outdoor unit T...

Страница 178: ...rence occurs in data by the refrigerant type between indoor and outdoor units The number of indoor units is out of the allowable range Error Decision Conditions The error decision is made as soon as e...

Страница 179: ...rmation of error 4 in the monitor mode To Diagnosis Flow 2 To Diagnosis Flow 3 Confirmation of error 3 Confirmation of error 4 Confirmation of error 3 Confirmation of error 4 Confirmation of error 3 C...

Страница 180: ...types of the outdoor unit and the indoor unit Confirmation of error 3 Confirmation of error 4 Confirmation of error 3 Confirmation of error 4 Diagnosis Flow 1 Diagnosis Flow 2 The number of indoor un...

Страница 181: ...oor unit main PCB Check the model of the outdoor unit Replace the spare PCB Check if the unit is not connected to outdoor units of different models Check if the outdoor unit PCB is replaced with spare...

Страница 182: ...ress as that of its own on any other indoor unit Error Decision Conditions The error decision is made as soon as the abnormality aforementioned is detected Supposed Causes Address duplication of centr...

Страница 183: ...ion Micro computer checks if transmission between indoor unit and centralized controller is normal Error Decision Conditions When transmission is not carried out normally for a certain amount of time...

Страница 184: ...h numbers types of cables and wires number of units connected and others If no problems replace the indoor unit PCB NO YES Continued to A on the following page YES Check the indoor unit for which UE i...

Страница 185: ...tion A NO YES Disconnect the transmission wiring of the main centralized controller and then check the voltage between the transmission terminals F1 and F2 of the master unit transmission equipment us...

Страница 186: ...of transmission wiring between indoor outdoor units and outdoor outdoor units Failure to execute check operation Defective indoor unit PCB Stop valve is not opened Troubleshooting Caution Be sure to t...

Страница 187: ...of indoor unit RQYQ PY1B Method of Error Detection Detect an indoor unit with no auto address setting Error Decision Conditions The error decision is made as soon as the abnormality aforementioned is...

Страница 188: ...CB for 5 seconds The unit will not run for up to 12 minutes Normal NO Is electricity being introduce for the first time after installation or after an indoor or outdoor unit PCB has been replaced Is i...

Страница 189: ...PCB Short circuit High outdoor air temperature Short circuit High outdoor air temperature Check to be sure the stop valve is open Conduct visual checks for pipe conditions Is there any temperature di...

Страница 190: ...perature Is the pressure value checked with the Service Checker corresponding to the measurement of the pressure sensor Is the pressure value checked with the Service Checker corresponding to the meas...

Страница 191: ...ective service monitor PCB Check if coil resistance and insulation are normal Check if coil resistance and insulation are normal Check if the voltage property is normal Check if the connector is conne...

Страница 192: ...Judgement Criteria 2 15k Remarks 15k and above including Due to condenser charge and so on resistance measurement may require some time 2 15k 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 10 11 12 10 11 12 P2...

Страница 193: ...insulation Does the air filter get clogged Are there any obstacles in the air passage Degraded evaporating capacity Increased resistance in air passage Reduced air quantity Reduced fan output 1 Super...

Страница 194: ...K 6 High pressure gradually rises with increase in frequency Subcooled degree becomes higher Liquid connection pipe temperature lowers Low pressure rises due to reduced compressor output The outside u...

Страница 195: ...tion under cooling control at low outdoor air temperature i e the fan is hunting at high pressure High pressure drops with decrease in compressor capacity If frequency comes to the minimum level low p...

Страница 196: ...less for a period of 1 hour or more and then check to be sure that the vacuum gauge reading does not rise If the reading rises moisture may have remained in the system or refrigerant leakage may have...

Страница 197: ...r fails to start up Liquid sealing or defective compressor Excessive oil or refrigerant Defective inverter PCB E5 Inverter compressor lock The compressor is in the locked status does not rotate Defect...

Страница 198: ...When imbalance in voltages among three phases comes to 2 or more Power supply voltage error When the power supply voltage falls out of the range of 460VAC 10 230VAC 10 Error codes related to compresso...

Страница 199: ...2 5 57 94 52 6 65 52 5 6 53 3 56 49 3 5 55 08 53 6 41 53 5 6 53 4 53 71 4 5 52 38 54 6 65 54 5 6 53 5 51 09 5 5 49 83 55 6 41 55 5 6 53 6 48 61 6 5 47 42 56 6 18 56 5 6 06 7 46 26 7 5 45 14 57 5 95 57...

Страница 200: ...78 72 5 32 23 122 7 06 122 5 6 97 23 218 24 23 5 213 51 73 31 69 73 5 31 15 123 6 87 123 5 6 78 24 208 90 24 5 204 39 74 30 63 74 5 30 12 124 6 69 124 5 6 59 25 200 00 25 5 195 71 75 29 61 75 5 29 12...

Страница 201: ...rvice Diagnosis 191 Pressure Sensor CHECK 12 PH 1 38VH 0 69 PL 0 57VL 0 28 PH High pressure MPa PL Low pressure MPa VH Output Voltage High Side VDC VL Output Voltage Low Side VDC High Pressure PH Low...

Страница 202: ...tinuity 2 Procedure for checking indoor outdoor unit transmission wiring for broken wires for checking the indoor outdoor unit transmission wiring of the Outdoor Unit C for broken wires Turn OFF the p...

Страница 203: ...available for combined use 2 The intelligent Touch Controller centralized remote controller and the unified ON OFF controller have been set to Provided with the master unit central setting connector a...

Страница 204: ...those described in the list of Setting of master unit central setting connector CHECK 15 1 2 3 4 Pattern 1 00 4 15 Master Slave 5 00 8 15 Master Slave 1 00 4 15 Master Slave 5 00 8 15 Master Slave CR...

Страница 205: ...SiBE341027 Appendix 195 Part 7 Appendix 1 Piping Diagrams 196 2 Wiring Diagrams 199 3 Accessories 202 3 1 Optional Accessories 202...

Страница 206: ...ESSURE SENSOR HIGH LIQUID PIPE FUSIBLE PLUG SOLENOID VALVE CHECK VALVE CHECK VALVE SOLENOID VALVE SOLENOID VALVE CHECK VALVE SOLENOID VALVE CHECK VALVE REFRIGERANT REGULATOR CHECK VALVE SOLENOID VALVE...

Страница 207: ...PLUG REFRIGERANT REGULATOR SOLENOID VALVE CHECK VALVE CHECK VALVE SOLENOID VALVE OIL REGULATOR SOLENOID VALVE SOLENOID VALVE PIPE HEAT EXCHANGER PIPE HEAT EXCHANGER FUSIBLE PLUG SOLENOID VALVE ELECTR...

Страница 208: ...HECK VALVE CHECK VALVE SOLENOID VALVE SOLENOID VALVE CHECK VALVE OIL REGULATOR SOLENOID VALVE SOLENOID VALVE FUSIBLE PLUG SOLENOID VALVE PIPE HEAT EXCHANGER PIPE HEAT EXCHANGER ELECTRONIC EXPANSION VA...

Страница 209: ...E1HC F1U F1U F2U F400U H1P 8P A1P A2P A3P A4P A5P A9P BS1 5 PRINTED CIRCUIT BOARD MAIN PRINTED CIRCUIT BOARD SUB PRINTED CIRCUIT BOARD NOISE FILTER PRINTED CIRCUIT BOARD INV PRINTED CIRCUIT BOARD FAN...

Страница 210: ...NETIC CONTACTOR M1C A4P MAGNETIC CONTACTOR M2C MAGNETIC CONTACTOR M1C A3P MAGNETIC RELAY K2M A1P MAGNETIC RELAY Y5S A2P MAGNETIC RELAY A4P MAGNETIC RELAY Y6S A2P MAGNETIC RELAY Y1S A1P MAGNETIC RELAY...

Страница 211: ...K2M K3M K4M K1R K2R K1R K1R K2R K3R K3R K3R K4R K4R PRINTED CIRCUIT BOARD MAIN PRINTED CIRCUIT BOARD SUB PRINTED CIRCUIT BOARD NOISE FILTER PRINTED CIRCUIT BOARD INV PRINTED CIRCUIT BOARD FAN PRINTED...

Страница 212: ...1B RQYQ16PY1B RQYQ18PY1B RQYQ20PY1B RQYQ22PY1B KRC19 26A KJB111A KRC19 26A KJB111A KHRP26M22H Max 4 branch KHRP26M33H Max 8 branch KHRP26A22T KHRP26A33T KHRP26M22H Max 4 branch KHRP26M33H Max 8 branch...

Страница 213: ...Ask a qualified installer or contractor to install those parts and accessories Use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refri...

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