Saijo Denki CVIA-80-CPF3 Service Manual Download Page 51

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Refrigerant system diagram

Saijo denki International co.,ltd.

Thermistor (Condenser)

Thermistor (Suction)

Thermistor (Discharge Compressor 1)

Thermistor (Discharge Compressor 2)

Oil seperator

Heat exchanger

Fan motor

Check valve

Liquid Receiver tank

Thermistor (Ambient)

Compressor 1

Compressor 2

Low pressure switch

Hi pressuer switch

Accumulator

No. in refrigerant

system diagram

Name

Summary of Contents for CVIA-80-CPF3

Page 1: ...80 CPF3 CVIA 200 CPF3 CVIA 220 CPF3 CVIA 240 CPF3 CVIA 260 CPF3 CVIA 280 CPF3 CVIA 300 CPF3 CVIA 320 CPF3 CVIA 340 CPF3 CVIA 360 CPF3 CVIA 380 CPF3 CVIA 400 CPF3 CVIA 420 CPF3 CVIA 440 CPF3 CVIA 460 CPF3 CVIA 480 CPF3 CVIA 500 CPF3 CVIA 520 CPF3 CVIA 540 CPF3 CVIA 560 CPF3 Saijo denki International co ltd PRINTED IN THAILAND Sep 2019 Contents have NOT been changed REVISION 0 Aug 2019 FILE No A10 0...

Page 2: ...3 5 2 Inverter P C board for compressor MOBLED360 41 3 5 3 Inverter P C board for fan MNFDC5A 42 4 Refrigerant Piping Systematic Drawing 43 5 ADDRESS SETTING 45 6 Manual address setting using the remote controller 48 6 1 Manual address setting using the indoor unit display 49 6 2 Confirm the indoor unit addresses 49 7 TEST RUN 50 8 Error code 53 Error code 01 10 SWV 53 Error code 01 10 SCV 54 Erro...

Page 3: ...Saijo denki International co ltd 2 ...

Page 4: ...d damage concerned to property furniture and domestic animal pet Saijo denki International co ltd 3 WARNING CAUTION Shoes with additional protective toe cap Transportation of heavy objects Repair of outdoor unit Gloves to provide protection for electricians and from heat Explanation Indication Indicates contents assumed that an imminent danger causing a death or serious injury of the repair engine...

Page 5: ...u might get burned when removing this panel WARNING ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing The sentences or illustration near or in an illustrated mark describe the concrete cautious contents Indicates prohibited items Forbidden items to do The sentences near an illustrated mark describe the concrete prohibited contents Indicates mandatory items Comp...

Page 6: ...ce a Work in progress sign on the circuit breaker When cleaning the filter or other parts of the indoor unit set the circuit breaker to OFF without fail and place a Work in progress sign near the circuit breaker before proceeding with the work When you have noticed that some kind of trouble such as when an error display has appeared there is a smell of burning abnormal sounds are heard the air con...

Page 7: ... window on the electric parts box put on insulated gloves to provide protection from electric shock Otherwise you may receive an electric shock When transporting the air conditioner wear shoes with additional protective toe caps When transporting the air conditioner do not take hold of the bands around the packing carton You may injure yourself if the bands should break Do not touch the aluminum f...

Page 8: ...erant the refrigerant name is indicated at a position on the outdoor unit where is easy to see To prevent miss charging the route of the service port is changed from one of the former R22 Refrigerant For an air conditioner which uses R410A never use other refrigerant than R410A For an air conditioner which uses other refrigerant R22 etc never use R410A If different types of refrigerant are mixed a...

Page 9: ... panel does not catch the inner wires If incorrect assembly or incorrect wire connection was done a disaster such as a leak or fire is caused at user s side Refrigerant Compulsion Do not charge refrigerant additionally If charging refrigerant additionally when refrigerant gas leaks the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics ...

Page 10: ...it as they get heated while running Be sure to put on gloves providing protection for electric shock and heat When the service panel of the outdoor unit is to be opened in order for the fan motor reactor inverter or the areas around these parts to be repaired immediately after the air conditioner has been shut down set the circuit breaker to the OFF position and then wait at least 10 minutes befor...

Page 11: ... in the local regulations and laws Install the circuit breaker where it can be easily accessed by the qualified service person 1 If you install the unit in a small room take appropriate measures to prevent the refrigerant from exceeding the limit concentration even if it leaks Consult the dealer from whom you purchased the air conditioner when you implement the measures Accumulation of highly conc...

Page 12: ...forklift into the rectangular holes for handling as shown below To lift up the unit insert a rope capable of bearing the weight of the unit into the rectangular holes shown below Tie the unit from 4 sides Apply padding in positions where the rope comes in contact with the outdoor unit so that no damage is caused to the outer surface of the outdoor unit There are reinforcing plates on the side surf...

Page 13: ... CVIA 100 CPF3 CVIA 120 CPF3 CVIA 140 CPF3 Saijo denki International co ltd 12 857 230 624 376 857 230 624 376 857 230 624 376 857 230 Unit in mm Y mm Z mm 624 376 OUTDOOR MODEL X mm Weight kg COOLING ONLY Weight centre of an outdoor unit ...

Page 14: ...al co ltd 13 Additional refrigerant charge amount per 1m liquid pipe Table 1 After finishing vacuuming exchange the vacuum pump with a refrigerant canister and start additional If the additional refrigerant amount indicates minus as the result of calculation use the air conditioner without Heat pump type Outdoor unit type Charging amount kg Cooling only type Outdoor unit type Charging amount kg Co...

Page 15: ...5 42 44 5 0 7 5 8 5 9 5 11 5 12 5 34 36 38 28 30 32 Standard type Combined outdoor units HP Keeping the valve of the outdoor unit closed be sure to charge the liquid refrigerant into the service port at the liquid side If the specified amount of refrigerant cannot be charged fully open the valves of the outdoor unit at liquid and gas sides operate the air conditioner in COOL mode and then charge r...

Page 16: ...ditioner However clear impurities when using them The pressure of R410A is high 1 6 times of that of the former refrigerant R22 Accompanied with change of refrigerant the refrigerating oil has been also changed Therefore be sure that water dust the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with new refrigerant during install...

Page 17: ...t charging balance Charging refrigerant R22 Existing article Exclusive to R410A Vacuum pump with counterflow Usable if a counter flow preventive adapter is attached Vacuum drying R22 Existing article Flare processing of pipes Flare tool Usable by adjusting size Gas leak detector Vacuum pump Exclusive to R410A Vacuum drying Checking gas leak Used tools Gauge manifold Charging hose Charging cylinder...

Page 18: ...rior notice 9 52 3 Tube Material Pipe Connection Size Copper Fin Material Row Anti Corrosive Pre Coated Aluminium Blue Fin Coil E 44 190 2 1 83 2 26 80 FVC68D 2300 7 640 26 Maximum Vertical Pipe Length Refrigerant Control Rated Power Input EXV in Indoor Unit R410A Rated Current Refrigerant Type Refrigerant Charge Compressor Type Oil Type Oil Amount EER T3 COP T3 Power Supply DC Inverter Scroll Uni...

Page 19: ...IA 100 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 140 CPF3 CVIA 140 CPF3 CVIA 80 CPF3 CVIA 80 CPF3 CVIA 100 CPF3 CVIA 100 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 140 CPF3 Notes 1 DB Dry Bulb Temp C 2 WB Wet Bulb Temp C 3 The specification are based on testing at Saijo Denki factory 4 The specification are subject to change without prior notice Insulation Grade Poles Rated Power Input Rated Current Type O...

Page 20: ... CVIA 140 CPF3 CVIA 100 CPF3 CVIA 100 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 140 CPF3 CVIA 140 CPF3 CVIA 100 CPF3 CVIA 100 CPF3 CVIA 100 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 140 CPF3 Notes 1 DB Dry Bulb Temp C 2 WB Wet Bulb Temp C 3 The specification are based on testing at Saijo Denki factory 4 The specification are subject to change without prior notice 7 640 26 Maxim...

Page 21: ...3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 140 CPF3 CVIA 140 CPF3 CVIA 140 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 140 CPF3 CVIA 140 CPF3 CVIA 80 CPF3 CVIA 100 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 120 CPF3 CVIA 140 CPF3 Notes 1 DB Dry Bulb Temp C 2 WB Wet Bulb Temp C 3 The specification are based on testing at Saijo Denki factory 4 The specification a...

Page 22: ...ange without prior notice Saijo denki International co ltd 21 W x D x H W x D x H Unit Weight Airflow Rate Turbo Medium Indoor Unit Model Air Filter Type Quantity Plastic Pre Filter 2 Plastic Pre Filter 3 Power Source Nominal Cooling Capacity Nominal Power Input Sound Pressure Level Remote Control Wired Wireless Optional 330 x 1 600 x 237 Low High 23 50 290 x 660 x 390 0 60 220 240 1 50 Cross Flow...

Page 23: ... prior notice Saijo denki International co ltd 22 0 85 Power Source Sound Pressure Level 950 x 1 340 x 45 950 x 950 x 45 840 x 840 x 245 840 x 840 x 280 840 x 1 225 x 325 0 87 Indoor Unit Model Air Filter Type Quantity Refrigerant Control Airflow Rate High Medium Low Packing Dimension Unit Dimension EXV 220 240 1 50 Nominal Cooling Capacity Nominal Power Input 29 34 57 1 040 x 930 x 380 1 420 x 93...

Page 24: ...e Saijo denki International co ltd 23 0 12 Nominal Cooling Capacity Nominal Power Input Power Source W x D x H Low Sound Pressure Level 9 52 0 55 2 89 2 0 40 2 104 0 47 Sirocco Fan Direct Medium 20 1 897 x 261 x 630 1 330 x 290 x 690 B W x D x H Refrigerant Control Air Filter Type Quantity Remote Control Unit Weight 220 240 1 50 Fan Type Drive Type Index of Protection IP Insulation Grade EXV Plast...

Page 25: ...denki International co ltd 24 Fin Material Anti Corrosive Pre Coated Aluminium Blue Fin Row 2 3 4 Pipe Connection Size Liquid 9 52 Gas 15 87 Coil Tube Material Copper Tube 9 52 Poles 8 6 Fan Type Turbo Fan Drive Direct Drive 111 2 178 2 0 97 4 Rated Current 0 5 2 1 09 2 237 4 Refrigerant Type R410A Fan Motor Type AC Motor Index of Protection IP 2X Insulation Grade B Rated Power Input Remote Contro...

Page 26: ...d 25 220 240 1 50 Sirocco Fan EXV 42 21 1 110 x 720 x 295 1 600 x 720 x 245 6 35 9 52 Aluminium 2 R410A Unit Weight Remote Control 15 87 0 11 0 18 42 0 28 89 2 140 AC MOTOR Direct 1 180 x 790 x 360 1 670 x 790 x 310 1 870 x 790 x 360 71 58 42 Aluminium 1 0 47 0 40 2 0 55 20 B 104 21 1 800 x 720 x 295 Sound Pressure Level Refrigerant Control Refrigerant Type Air Filter Type Quantity Wired Wireless ...

Page 27: ...i International co ltd 26 Indoor Unit Model Medium Low Remote Control Power Source 220 240 1 50 Unit Weight Nominal Cooling Capacity Nominal Power Input 358 324 1 50 2 45 Air Filter Type Quantity Direct Refrigerant Type R410A Fan Type Drive Fan Motor Type Index of Protection IP Insulation Grade Rated Power Input Sirocco Fan Rated Current Poles 4 AC Motor 39 51 58 Plastic Pre Filter 2 Plastic Pre F...

Page 28: ...mm Notes 1 The specification are based on testing at Saijo Denki factory 2 The specification are subject to change without prior notice Saijo denki International co ltd 27 Power Source Sound Pressure Level Nominal Cooling Capacity Indoor Unit Model Refrigerant Type Refrigerant Control External Static Pressure Airflow Rate High Medium Low Unit Weight W x D x H W x D x H Coil Tube Material Fin Mater...

Page 29: ...Models CVIA 80 CPX3 CVIA 100 CPX3 CVIA 120 CPX3 CVIA 140 CPX3 Saijo denki International co ltd 28 2 1 Outdoor unit 2 Wiring Diagrams ...

Page 30: ...Models SWV 09 A VTGP1 SWV 13 A VTGP1 SWV 20 A VTGP1 SWV 25 A VTGP1 SWV 30 A VTGP1 SWV 36 A VTGP1 Saijo denki International co ltd 29 Wiring Diagrams Indoor unit ...

Page 31: ...Models SCV 13 A VTGP1 SCV 20 A VTGP1 SCV 25 A VTGP1 SCV 30 A VTGP1 SCV 36 A VTGP1 Saijo denki International co ltd 30 Wiring Diagrams 2 2 Indoor unit SCV 50 A VTGP1 SCV 60 A VTGP1 ...

Page 32: ...Models SUV 13 A VTGP1 SUV 20 A VTGP1 SUV 25 A VTGP1 Saijo denki International co ltd 31 Wiring Diagrams Indoor unit ...

Page 33: ...Models SUV 30 A VTGP1 SUCV 36 A VTGP1 SUV 50 A VTGP1 SUV 60 A VTGP1 Saijo denki International co ltd 32 Wiring Diagrams Indoor unit ...

Page 34: ...Models SFV 30 A VTGP1 SFV 36 A VTGP1 SFV 50 A VTGP1 SFV 60 A VTGP1 SFV 80 A VTGP1 SFV 120 A VTGP1 Saijo denki International co ltd 33 Wiring Diagrams Indoor unit ...

Page 35: ...Models SDV 13L A VTGP1 SDV 20L A VTGP1 SDV 25L A VTGP1 SDV 30L A VTGP1 SDV 36L A VTGP1 Saijo denki International co ltd 34 Wiring Diagrams Indoor unit SDV 50L A VTGP1 SDV 60L A VTGP1 ...

Page 36: ...nki International co ltd Cooling T4 IN 26 6 C DB 19 4 C WB OUT 48 C DB 26 9 C WB Cooling T1 IN 27 C DB 19 C WB OUT 35 C DB 24 C WB Cooling T3 IN 29 C DB 19 C WB OUT 46 C DB 24 C WB Coil Tube Material Copper Tube 7 Fin Material Anti Corrosive Pre Coated Aluminium Blue Fin Row 3 Pipe Connection Size Liquid 6 35 9 52 Gas 15 87 Rated Current 1 50 2 45 Poles 4 Fan Type Sirocco Fan Drive Direct Fan Moto...

Page 37: ...Models SDV 13M A VTGP1 SDV 60M A VTGP1 Saijo denki International co ltd 35 Wiring Diagrams Indoor unit ...

Page 38: ... mm Notes 1 The specification are based on testing at Saijo Denki factory 2 The specification are subject to change without prior notice Saijo denki International co ltd 4 Coil Tube Material Copper Tube 7 Fin Material Anti Corrosive Pre Coated Aluminium Blue Fin Row 3 Pipe Connection Size Liquid 6 35 9 52 Gas 15 87 Rated Current 1 50 3 90 Poles 4 Fan Type Sirocco Fan Drive Direct Fan Motor Type AC...

Page 39: ...Models SDV 13H A VTGP1 SDV 20H A VTGP1 SDV 25H A VTGP1 SDV 30H A VTGP1 SDV 50H A VTGP1 SDV 80H A VTGP1 SDV 60H A VTGP1 SDV 120H A VTGP1 Saijo denki International co ltd 36 Wiring Diagrams Indoor unit ...

Page 40: ... CVIA 100 CPF3 CVIA 120 CPF3 CVIA 140 CPF3 1 Power Supply terminal block TS1 TB 2506L 600 VAC 25A 50 Hz 6 P O O O O 2 Communication terminal block TS3 TB 2503L 600 VAC 25A 50 Hz 3 P O O O O 3 Reactor L1 L2 TTSY14601 1 380 VAC 1 4 mH 25A x 2 O O O O 4 Inverter P C board Outdoor control MOBLED360 O O O O 5 Inverter P C board Outdoor control MNSRV2A O O O O 6 Inverter P C board Outdoor control MNFDC5...

Page 41: ......

Page 42: ...3 3 Parts layout in outdoor unit Models CVIA 80 CPX3 CVIA 140 CPX3 Reciving tank Liqid tank ACCUMULATOR Saijo denki International co ltd 38 Compress ...

Page 43: ...layout in inverter assembly Models CVIA 80 CPX3 CVIA 140 CPX3 P C Board Control DC Fan Saijo denki International co ltd 39 Inverter P C Board For Compressor Power Supply Terminal 6P Inverter P C Board For Control ...

Page 44: ... P C board 3 5 1 P C board MNCM1B J1 J9 RS485 P12 High pressure P9 Low P16 pressure Sensor Ambient P2 Sensor Suction P5 Saijo denki International co ltd 40 Seneor Discharge P6 Sensor Condenser P3 Power Supply 7 segment LED ...

Page 45: ...g Terminal N Reactor Connecting Terminal P Power Supply J206 Fan J208 Power Supply R L1 L3 Power Supply S L2 Connector Address set P4 RS 485 Communication Saijo denki International co ltd 41 Power Supply T out U phase Coppressor out V phase Coppressor out W phase Coppressor ...

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Page 48: ...3 5 3 Inverter P C board for fan MNFDC5A Display P7 Connector DC Fan J9 Saijo denki International co ltd 42 Power Supply J2 ...

Page 49: ...Z Service valve Check joint Temperature Saijo denki International co ltd 41 Symbol ...

Page 50: ...Models CVIA 80 CPX3 CVIA 100 CPX3 CVIA 120 CPX3 CVIA 140 CPX3 SINGLE COMPRESSOR Z Service valve Check joint Temperature Saijo denki International co ltd 43 Refrigerant Piping Systematic Drawing Symbol ...

Page 51: ...ermistor Discharge Compressor 1 Thermistor Discharge Compressor 2 Oil seperator Heat exchanger Fan motor Check valve Liquid Receiver tank Thermistor Ambient 11 12 13 14 15 Compressor 1 Compressor 2 Low pressure switch Hi pressuer switch Accumulator 5 6 7 8 9 10 No in refrigerant system diagram Name 1 2 3 4 ...

Page 52: ...th an indoor unit one to one when the system is organized for group operation and no Remote controller On this unit it is required to set the addresses of the indoor units before starting air conditioning Set the addresses following the steps below If you turn on the outdoor unit before turning on the indoor units the CODE No E19 is indicated on the 7 segment display on the interface P C board of ...

Page 53: ...utomatic set mode On screen will be shown Auto Status screen 3 Press the RESET button to start ID automatic setup Running led light show on screen 10 minutes approximate Running LED on screen Saijo denki International co ltd 46 IND OUT Button RESET Button ...

Page 54: ...es not complete that is because it cannot with any indoor unit On screen will be show FAIL 5 The ID of the indoor unit can be checked by pressing ID button for level up or ON OFF button for level down Press ON OFF for Level down 6 Press the STATUS button to exit the setup mode Saijo denki International co ltd 47 ID on screen Requested ID Press ID for level up ...

Page 55: ...ET button and hold 10 seconds until the screen shows the ID number 2 Press UP DOWN to set up the ID number Show A Saijo denki International co ltd 48 When the remote controller is in home page status Show2 digits number When the remote controller is in setup ID status ...

Page 56: ...de with PIP sound 2 On screen shows the present ID number 3 Press ON Off to change the ID number with in the range 0 63 ID number in the range 0 63 6 2 Confirm the indoor unit addresses Saijo denki International co ltd 49 When the remote controller is in setup ID status When the remote controller is in home page status ...

Page 57: ... system to use the wired remote controller and hot system to use board controller of master unit Operate the system by using the wired remote controller 1 Turning on the power 2 Press Mode button to operate in cool mode 3 Press Fan speed to operate in speed HiHi 4 Press Down button to operate in 15 C Saijo denki International co ltd 50 Before turning on the power confirm that the resistance betwee...

Page 58: ... unit 1 Press Status button unit the LED Control light up which indicated in control mode 2 Press IND OUTD button unit LED Control light up which Indicated in indoor unit control Saijo denki International co ltd 51 LED Control STATUS Button LED Indoor IND OUTD Button ...

Page 59: ...utton 4 Press ON OFF to open Indoor unit Right screen shown status of Indoor unit Saijo denki International co ltd 52 00 Power off 01 Power on ON OFF Button Right screen shown ID of Indoor unit Left screen shown status of Ondoor unit 00 Power off ...

Page 60: ...001402 6SP431G 00015 R 6SP431G 00016 L Check speed of fan motor Fan motor Check the quantity of working fluid in the system 08 09 10 Saijo denki International co ltd 53 6SP505AMWB296DS01 6SP505AMWB296DS02 6SP505AMWB296DS03 6SP551A 00025 02 Indoor unit Flood Protection There is an error in the drainage of the indoor unit 03 Indoor unit Room Temperature sensor fail There is an error in room temperat...

Page 61: ... 0000702 6SP431J 0000702 6SP431J 0000702 6SP431J 0000702 6SP431J 0000702 6SP431J 0000702 Check speed of fan motor Fan motor Check the quantity of working fluid in the system 08 09 10 Saijo denki International co ltd 54 ERROR CODE There is an error in the cooling motor of the Indoor unit 6SP505AMWB296DS02 Control Ass y Check operation of the control board 6SP505AMWB338HA 6SP505AMWB296DS03 02 Indoor...

Page 62: ...2 Cross flow fan L Check speed of fan motor Fan motor 6SP511A 0002307 Check the quantity of working fluid in the system 08 09 10 Saijo denki International co ltd 55 ERROR CODE 6SP511A 0008103 6SP511A 0002307 6SP511A 0008103 6SP511A 0002307 6SP301ASUB023V 4GN431D 00034 6SP431D 00002 4GN431D 00035 6SP551A 00005 6SP551A 00024 6SP505AMWB296AS01 6SP505AMWB296AS01 6SP505AMWB296AS01 6SP504CSHA031 6SP511A...

Page 63: ...coil ass y Cross flow fan Cross flow fan Check speed of fan motor Fan motor Check the quantity of working fluid in the system 08 09 10 Saijo denki International co ltd 56 ERROR CODE Indoor unit Inlet Temperature sensor fail There is an error in the refrigerant temperature sensor at the Evaporator inlet Defrost sensor 60 cm Inlet Indoor unit Outlet Temperature sensor fail There is an error in the r...

Page 64: ...an R 6SP431D 00002 Cross flow fan L Check speed of fan motor Fan motor 6SP511A 0002307 Check the quantity of working fluid in the system 08 09 10 Saijo denki International co ltd 57 ERROR CODE Control board 6SP505AMWB296AS01 6SP505AMWB296AS01 6SP505AMWB296AS01 6SP511A 00014 6SP301ASDE021V 6SP431D 00011 6SP431D 00012 6SP511A 00014 6SP511A 00014 6SP511A 0002307 6SP301ASDC025V 6SP511A 0002307 6SP431D...

Page 65: ... fan R 6SP431D 00040 Cross flow fan L 6SP431D 00041 Check speed of fan motor Fan motor 6SP511A 0002307 Check the quantity of working fluid in the system 08 09 10 Saijo denki International co ltd 58 ERROR CODE 6SP511A 00014 6SP511A 0005101 6SP511A 00014 6SP511A 0005101 6SP431D 0000801 6SP431D 0000802 6SP301ASDC018V Control board Control Ass y 6SP511A 0005601 6SP431D 00042 6SP504CSHA031 4EC551A 0002...

Page 66: ...SP431D 00041 Check speed of fan motor Fan motor 6SP511A 0002307 6SP511A 0005003 6SP511A 0005601 Check the quantity of working fluid in the system 08 09 10 Saijo denki International co ltd 59 ERROR CODE 6SP511A 0005101 6SP511A 0005101 6SP301ASDC021V 6SP301ASDC022V 6SP431D 0000801 6SP431D 0000802 6SP505AMWB296AS01 6SP505AMWB296AS01 6SP551A 00013 4EC551A 00024 6SP504CSHA031 6SP501ASDF036 6SP501ASDA05...

Page 67: ...board 2 6SP505AMWB313SS01 21 22 23 29 Check the quantity of working fiuld in the system Check blockage of refrigerant piping Check the cooling of the heat sink Check operation of compressor 1 Compressor 1 ANB78FVAMT 6SP200S 3510002 Check resistance of sensor at compressor 1 outlet Sensor Discharge 1 Check reading sensor of slave board Slave board 6SP505AMWB268S01 Check the quantity of working fiul...

Page 68: ...ink Check blockage of refrigerant piping Check control board of compressor 1 Control board 1 6SP505AMWB313SS01 Check operation of compressor 1 Compressor 1 ANB78FVAMT 6SP200S 3510002 Check the quantity of working fluid in the system Check the cooling of the heat sink Check the supply voltage to heat sink Check blockage of refrigerant piping Check control board of compressor 2 Control board 2 6SP50...

Page 69: ...g of control board at compressor by Compressor 1 is set as 1 Compressor 2 is set as 2 Check operating control board of compressor Control board 6SP505AMWB313SS01 Check operation of slave board Slave board 6SP505AMWB268S01 Check the quantity of working fluid in the system Check the cooling of the heat sink Check the supply voltage to heat sink Check blockage of refrigerant piping Check control boar...

Page 70: ... the float YES Chang the control board Saijo denki International co ltd 63 Is dain pump work normal Is float switch struck or work normal cause Error 02 Indoor unit Flood Protection There is an error in the drainage of the indoor unit Is drain pipe have blockage Check code Check code name ...

Page 71: ... denki International co ltd 64 Is sensor connect on control board position P1 Correct connector connection Is the wire of sensor normal Is sensor resistance normal Check code Check code name cause Error 03 Indoor unit Room Temperature sensor fail There is an error in room temperature seneor at the indoor unit ...

Page 72: ...ternational co ltd 65 Is sensor connect on control board position P2 Correct connector connection Is the wire of sensor normal Is sensor resistance normal Check code Check code name cause Error 04 Indoor unit Inlet Temperature sensor fail There is an error in the refrigerant temperature sensor at the Evaporator inlet ...

Page 73: ...ernational co ltd 66 Is sensor connect on control board position P3 Correct connector connection Is the wire of sensor normal Is sensor resistance normal Check code Check code name cause Error 05 Indoor unit Outlet Temperature sensor fail There is an error in the refrigerant temperature sensor at the Evaporator outlet ...

Page 74: ...l board Saijo denki International co ltd 67 Check code Check code name cause Error 06 Indoor unit Motor fail There is an error in the cooling motor of the Indoor unit Is motor connect to control board correct Correct connector connection on control board Is motor normal ...

Page 75: ... the system Saijo denki International co ltd 68 Check code Check code name cause Check speed of fan motor Check the quantity of working fluid in the system Error 07 Indoor Antifreeze protection There is freezing at cooling coil Check the coil and fan blades Cleaning the coil and fan blades ...

Page 76: ...ck the master board Check code Check code name cause Error 11 Communication loss with Slave PCB There is not communicate with Slave PCB Is connector and wiring between master board and slave board correct Correct connector connection and check circuit wiring Is jumper on slave board correct Correct setting ...

Page 77: ...oor unit correct Correct connector connection and check wiring board Is indoor unit power on On power Is all indoor control board normal Change indoor control board Check master control board Check code Check code name cause Error 12 Communication loss with Indoor unit There is not communicate wilt idoor unit ...

Page 78: ... unit Ambient Temperature sensor fail There is an error in the temper sensor at air inlet of outdoor unit Is sensor connect on control board Correct connector connection Is the wire of the sensor normal Change the sensor Is sensor resistance normal Change the sensor Check code Check code name cause ...

Page 79: ... Is sensor resistance normal Change the sensor Check the control board Check code Check code name cause Error 14 Outdoor unit Inlet Coil Temperature sensor fail There is an error in the refrigerant temperature sensor at the heat sink coil Inlet Is sensor connect on control board Correct connector connection ...

Page 80: ...r connection Is the wire of the sensor normal Change the sensor Is sensor resistance normal Change the sensor Check the control board Check code Check code name cause Error 15 Outdoor unit Outlet Coil Temperature sensor fail There is an error in the refrigerant temperature sensor at the heat sink coil Outlet ...

Page 81: ... Coil Temperature sensor fail There is an error in the refrigerant temperatre sensor at a middle of heat sink coil Is sensor connect on control board Correct connector connection Is the wire of the sensor normal Change the sensor Is sensor resistance normal Change the sensor Check code Check code name cause ...

Page 82: ...r Is sensor resistance normal Change the sensor Check the control board Check code Check code name cause Error 17 Compressor 1 Discharge pipe temperature sensor fail Threr is an error in the refrigerant temperature sensor at compressor 1 outlet Is sensor connect on control board Correct connector connection ...

Page 83: ...tor connection Is the wire of the sensor normal Change the sensor Is sensor resistance normal Change the sensor Check the control board Check code Check code name cause Error 18 Compressor 2 Discharge pipe temperature sensor fail Threr is an error in the refrigerant temperature sensor at compressor 2 outlet ...

Page 84: ... dldctric current sensor of compressor 1 Is the wiring between compressor 1 and control board of comoressor normal Correct connection wiring compressor and control board Is the coil resistance of the compressor 1 normal Change the compressor Is operation of the compressor 1 control board normal check control board Check code Check code name cause ...

Page 85: ...e compressor 2 control board normal check control board Chang the control board Check code Check code name cause Error 20 Compressor 2 Current sensor fail There is an error in the dldctric current sensor of compressor 2 Is the wiring between compressor 2 and control board of comoressor normal Correct connection wiring compressor and control board ...

Page 86: ...rant piping Correct refrigerant piping Is there cloging on outdoor unit heat exchanger Cleaning Is outdoor unit fan motor normal Check the fan motor Is resistance of the sensor at discharge pipe compressor 1 normal Chang the sensor Check code Check code name cause Error 30 Compressor1 Discharge pipe over temperature The temperature of Discharge pipe copressor 1 is overheated ...

Page 87: ...exchanger Cleaning Is outdoor unit fan motor normal Check the fan motor Is resistance of the sensor at discharge pipe compressor 2 normal Chang the sensor Check the control board Check code Check code name cause Error 31 Compressor 2 Discharge pipe over temperature The temperature of Discharge pipe copressor 2 is overheated Does refrigerant shortage Correct refrigerant amount ...

Page 88: ...sensor at heatzink normal Replace the sensor Check the control board Check code Check code name cause Error 32 Compressor1 Inverter Driver over temperature The control board of compressor 1 temperature is overheated Is heatzink cooling fan at control board of compressor 1 normal Replace the cooling fan Is the attach between control board of compressor 1 and heatzink normal Tighten the screw ...

Page 89: ...Driver over temperature The control board of compressor 2 temperature is overheated Is heatzink cooling fan at control board of compressor 2 normal Replace the cooling fan Is the attach between control board of compressor 2 and heatzink normal Tighten the screw Is silicon between control board of compressor and Heatxink normal Refill silicon to control board Check code Check code name cause ...

Page 90: ...an motor normal Check fan motor Is there high refrigerant Correct refrigerant amount Is resistance of temperature sensor at outdoor unit heat exchanger normal Chang the sensor Check the control board Check code Check code name cause Error 34 Outdoor unit Condenser over temperature The outdoor unit heat exchanger temperature is overheated ...

Page 91: ...efrigerant Correct refrigerant amount Is High pressure switch work normal Check High pressure switch Check the control board Check code Check code name cause Error 35 Outdoor unit High pressure switch trip The pressure of refrigerant in the system is higher than the limit Is there cloging on outdoor unit heat exchanger Cleaning ...

Page 92: ...Low pressure switch trip The pressure of refrigerant in the system is lower than the limit Does refrigerant shortage or clogging Fix refrigerant problem Are all indoor unit EXV work normal Check indoor unit EXV Is low pressure switch work normal Check Low pressure switch Check code Check code name cause ...

Page 93: ...ause Error 39 Compressor Under voltage The voltage of compressor is lower than the limit Is the supply voltage to the heat control board normal Check power voltage to control board Check code Check code name cause Error 38 Compressor Over voltage The voltage of compressor is higher than the specified value Is the supply voltage to the outdoor unit control board normal Check power voltage to contro...

Page 94: ...unit fan motor normal Check fan motor Is the supply voltage to the outdoor unit normal Check power voltage Is there cloging in the refrigerant system Correct refrigerant system Is compressor working normal Check compressor Check code Check code name cause Error 40 Compressor1 Over Current The electric current of compressor 1 is higher than the specified value ...

Page 95: ...it normal Check power voltage Is there cloging in the refrigerant system Correct refrigerant system Is compressor working normal Check compressor Check control board Check code Check code name cause Error 41 Compressor 2 Over Current The electric current of compressor 2 is higher than the specified value Is there cloging on outdoor unit heat exchanger Cleaning ...

Page 96: ... system Correct refrigerant system Is compressor working normal Check compressor Check control board Check code Check code name cause Error 42 Compressor1 Inverter Driver Over Current The electric current of control board of compressor 1 is higher than the specified value Is there cloging on outdoor unit heat exchanger Cleaning Is outdoor unit fan motor normal Check fan motor ...

Page 97: ...compressor Check control board Error 43 Compressor 2 Inverter Driver Over Current The electric current of control board of compressor 2 is higher than the specified value Is there cloging on outdoor unit heat exchanger Cleaning Is outdoor unit fan motor normal Check fan motor Is the supply voltage to the outdoor unit normal Check power voltage Check code Check code name cause ...

Page 98: ... unit fan motor normal Check fan motor Is the supply voltage to the outdoor unit normal Check power voltage Is there cloging in the refrigerant system Correct refrigerant system Is compressor working normal Check compressor Check code Check code name cause Error 44 Compressor1 Inverter Driver Control Speed Error There is error in speed control of compressor 1 ...

Page 99: ...it normal Check power voltage Is there cloging in the refrigerant system Correct refrigerant system Is compressor working normal Check compressor Check control board Check code Check code name cause Error 45 Compressor 2 Inverter Driver Control Speed Error There is error in speed control of compressor 2 Is there cloging on outdoor unit heat exchanger Cleaning ...

Page 100: ...rror 46 Compressor1 Inverter Driver DC Bus Voltage Error There is an error in DC voltage of control board of compressor 1 Is power supply voltage to outdoor unit normal Check power supply Is the capacitance of the capacitor in the control box of compressor normal Check capacitor for control compressor ...

Page 101: ...ower supply Is the capacitance of the capacitor in the control box of compressor normal Check capacitor for control compressor Check control board Check code Check code name cause Error 47 Compressor 2 Inverter Driver DC Bus Voltage Error There is an error in DC voltage of control board of compressor 2 ...

Page 102: ...ication Loss There is not communicate with the control board of the compressor Is wiring connection between slave board and control board of compressor normal Correct connection wiring Is jumper ID setting of control board of compressor normal Check jumper setting Is control board of compressor working normal Check control board of compressor Check code Check code name cause ...

Page 103: ...ower voltage to control board Is wiring connection from control board to compressor correct Correct wiring connection Is control board working normal Check control board Check compressor Check code Check code name cause Error 49 Compressor1 Inverter Driver Starting Fail There is a failure in the start command to operate compressor 1 Is there shortage or high refrigerant in the system Correct refri...

Page 104: ...to compressor correct Correct wiring connection Is control board working normal Check control board Check compressor Check code Check code name cause Error 50 Compressor 2 Inverter Driver Starting Fail There is a failure in the start command to operate compressor 2 Is there shortage or high refrigerant in the system Correct refrigerant amount Is there cloging in the refrigerant system Correct refr...

Page 105: ...he air conditioner system Process 1 Connect the cable of the RS 485 converter to the P5 position master board 2 Connect the cable of the RS 485 converter to the computer 3 Open the monitor program Saijo denki International co ltd 97 Signal converter RS 485 Master Board ...

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Saijo Denki CVIA-80-CPF3, Service Manual

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