Toshiba RAV-SM2244AT7 Service Manual Download Page 77

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Reset the power supply

and then perform test run

matching to the season.

Open valve fully.

Check outdoor fan.

Defect

→

Replace, retightening

Replace

sensor.

Check indoor P.C. board.

Defect

→

Replace

Repair defective position.

Is valve fully opened?

Is there no crack or

loosening of outdoor fan?

Does not the outdoor fan

perform abnormal operation?

Does indoor fan

normally operate?

Are indoor fan motor

and connector normal?

Is there no problem

on outdoor TL sensor?

(Measurement of resistance value)

Are resistance values

of indoor TC and TCJ

sensors normal?

Replace sensor.

Check the same items as

[P22] error.

Check overcharge of refrigerant, clogging of cycle,
broken pipe, abnormal overload, etc.
Defect

→

Correct defective position.

Check overcharge of refrigerant, clogging of cycle,
broken pipe, abnormal overload, etc.
Defect

→

Correct defective position.

Eliminate interfering element.

Heating season
Heating operation

Cooling season
Cooling operation

Is there no element

which interfere heat exchange

of outdoor unit?

• Clogging of heat exchanger
• Short circuit

Is there no element which

interfere heat exchange of indoor unit?

• Clogging of filter
• Clogging of heat exchanger
• Short circuit

YES

Check

code

[P20]

Outdoor

LED display

<Display 1> <Display 2>

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[High pressure protective operation]

Summary of Contents for RAV-SM2244AT7

Page 1: ...T TYPE OUTDOOR UNIT DIGITAL INVERTER RAV SM2244AT8 E RAV SM2804AT8 E RAV SM2244AT8Z E RAV SM2804AT8Z E RAV SM2244AT8ZG E RAV SM2804AT8ZG E RAV SM2244AT7 RAV SM2804AT7 RAV SM2244AT7Z RAV SM2804AT7Z RAV SM2244AT7ZG RAV SM2804AT7ZG PRINTED IN JAPAN Jun 2009 ToMo ...

Page 2: ...er is there for the service person and not for the customer CONTENTS SAFETY CAUTION 4 1 SPECIFICATIONS 11 1 1 Indoor Unit 11 1 2 Outdoor Unit 24 1 3 Operation Characteristic Curve 25 2 CONSTRUCTION VIEWS EXTERNAL VIEWS 27 2 1 Outdoor Unit 27 3 OUTDOOR UNIT REFRIGERANTING CYCLE DIAGRAM 31 4 WIRING DIAGRAM 33 4 1 Outdoor Unit 33 5 SPECIFICATIONS OF ELECTRICAL PARTS 34 5 1 Outdoor Unit 34 6 REFRIGERA...

Page 3: ... 89 10 2 Address Setup Group Control 90 10 3 Remote Controller Wiring 93 10 4 Address Setup Manual setting from remote controller 94 10 5 Confirmation of Indoor Unit No Position 95 11 INSTALLATION MANUAL 97 12 REPLACEMENT OF THE SERVICE P C BOARD 4316V392 MCC 1599 110 13 HOW TO EXCHANGE COMPRESSOR 111 13 1 Exchanging Procedure of Compressor Outline 111 13 2 Exchange of Compressor 111 14 DETACHMENT...

Page 4: ...ion Indicates prohibited items Forbidden items to do The sentences near an illustrated mark describe the concrete prohibited contents Indicates mandatory items Compulsory items to do The sentences near an illustrated mark describe the concrete mandatory contents Indicates cautions Including danger warning The sentences or illustration near or in an illustrated mark describe the concrete cautious c...

Page 5: ...ed from one of the former R22 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 abnormal high pressure generates in the refrigerating cycle and an injury due to breakage may be caused Do not charge refrigerant additionally If charging refrigerant addi...

Page 6: ...t even if the refrigerant leaks If the refrigerant leaks and exceeds the limit density an accident of shortage of oxygen is caused For the installation moving reinstallation work follow to the Installation Manual If an incorrect installation is done a trouble of the refrigerating cycle water leak electric shock or fire is caused After repair work has finished check there is no trouble If check is ...

Page 7: ...others do not mix in because pipes are affected by impurities such as water oxide scales oil etc Use the clean pipes Be sure to brazing with flowing nitrogen gas Never use gas other than nitrogen gas 4 For the earth protection use a vacuum pump for air purge 5 R410A refrigerant is azeotropic mixture type refrigerant Therefore use liquid type to charge the refrigerant If using gas for charging comp...

Page 8: ...serve also for R22 are necessary as the general tools 1 Vacuum pump Use vacuum pump by attaching vacuum pump adapter 2 Torque wrench 8 Spanner or Monkey wrench 3 Pipe cutter 9 Hole core drill 4 Reamer 10 Hexagon wrench Opposite side 4mm 5 Pipe bender 11 Tape measure 6 Level vial 12 Metal saw 7 Screwdriver Also prepare the following equipments for other installation method and run check 1 Clamp met...

Page 9: ...pe RAV SM562BT E RAV SM562BT E RAV SM562BT E RAV SM562BT E Ceiling type RAV SM562CT E RAV SM562CT E RAV SM562CT E RAV SM562CT E High wall type 2 series RAV SM562KRT E RAV SM562KRT E RAV SM562KRT E RAV SM562KRT E RAV SM2804AT series Simultaneous twin 4 way air discharge cassette type RAV SM1404UT E RAV SM1404UT E Concealed duct type RAV SM1402BT E RAV SM1402BT E Ceiling type RAV SM1402CT E RAV SM14...

Page 10: ... series SM110 SM110 SM80 SM80 SM80 SM56 SM56 SM56 SM56 Branch kit RBC TWP101E RBC TRP100E RBC DTWP101E Slimultaneous twin Simultaneous triple Simultaneous double twin RAV SM2804AT series SM140 SM140 SM80 SM80 SM80 SM80 SM80 SM80 SM80 Branch kit RBC TWP101E RBC TRP100E RBC DTWP101E ...

Page 11: ...cy class A A Maximum current A 18 22 18 22 Fan Turbo fan Turbo fan Turbo fan Turbo fan Fan unit Standard air flow H M L m min 33 5 24 0 19 5 35 0 24 0 20 5 33 5 24 0 19 5 35 0 24 0 20 5 Motor W 68 72 68 72 Sound pressure level H M L dB A 43 38 33 44 38 34 43 38 33 44 38 34 Sound power level H M L dB A 58 53 48 59 53 49 58 53 48 59 53 49 Outdoor unit Max total length m 70 70 70 70 Outer dimension M...

Page 12: ...ent A 18 22 18 22 Fan Centrifugal Centrifugal Centrifugal Centrifugal Fan unit Standard air flow H M L m min 27 0 23 0 18 9 33 0 28 0 23 1 27 0 23 0 18 9 33 0 28 0 23 1 Motor W 120 120 120 120 Sound pressure level H M L dB A 42 39 36 44 41 38 42 39 36 44 41 38 Sound power level H M L dB A 57 54 51 59 56 53 57 54 51 59 56 53 Outdoor unit Max total length m 70 70 70 70 Outer dimension Min length m 7...

Page 13: ...18 22 Fan Centrifugal Centrifugal Centrifugal Centrifugal Fan unit Standard air flow H M L m min 27 5 24 0 21 2 30 0 26 0 23 1 27 5 24 0 21 2 30 0 26 0 23 1 Motor W 120 120 120 120 Sound pressure level H M L dB A 41 38 35 43 40 37 41 38 35 43 40 37 Sound power level H M L dB A 56 53 50 58 55 52 56 53 50 58 55 52 Outdoor unit Max total length m 70 70 70 70 Outer dimension Min length m 7 5 7 5 7 5 7...

Page 14: ...lass B B Maximum current A 18 22 18 22 Fan Turbo fan Turbo fan Turbo fan Turbo fan Fan unit Standard air flow H M L m min 20 5 16 0 13 5 20 5 16 0 13 5 20 5 16 0 13 5 20 5 16 0 13 5 Motor W 20 20 20 20 Sound pressure level H M L dB A 35 31 28 35 31 28 35 31 28 35 31 28 Sound power level H M L dB A 50 46 43 50 46 43 50 46 43 50 46 43 Outdoor unit Max total length m 70 70 70 70 Outer dimension Min l...

Page 15: ...ximum current A 18 22 18 22 Fan Centrifugal Centrifugal Centrifugal Centrifugal Fan unit Standard air flow H M L m min 19 0 16 2 13 3 19 0 16 2 13 3 19 0 16 2 13 3 19 0 16 2 13 3 Motor W 120 120 120 120 Sound pressure level H M L dB A 40 37 34 40 37 34 40 37 34 40 37 34 Sound power level H M L dB A 55 52 49 55 52 49 55 52 49 55 52 49 Outdoor unit Max total length m 70 70 70 70 Outer dimension Min ...

Page 16: ...ncy class B B Maximum current A 18 22 18 22 Fan Centrifugal Centrifugal Centrifugal Centrifugal Fan unit Standard air flow H M L m min 18 5 16 7 14 6 18 5 16 7 14 6 18 5 16 7 14 6 18 5 16 7 14 6 Motor W 60 60 60 60 Sound pressure level H M L dB A 38 36 33 38 36 33 38 36 33 38 36 33 Sound power level H M L dB A 53 51 48 53 51 48 53 51 48 53 51 48 Outdoor unit Max total length m 70 70 70 70 Outer di...

Page 17: ...ency class B B Maximum current A 18 22 18 22 Fan Cross flow fan Cross flow fan Cross flow fan Cross flow fan Fan unit Standard air flow H M L m min 18 5 14 6 12 2 18 5 14 6 12 2 18 5 14 6 12 2 18 5 14 6 12 2 Motor W 30 30 30 30 Sound pressure level H M L dB A 45 41 36 45 41 36 45 41 36 45 41 36 Sound power level H M L dB A 60 56 51 60 56 51 60 56 51 60 56 51 Outdoor unit Max total length m 70 70 7...

Page 18: ...OP 3 50 3 41 3 50 3 41 Energy efficiency class B B Maximum current A 18 22 18 22 Fan Turbo fan Turbo fan Turbo fan Turbo fan Fan unit Standard air flow H M L m min 17 5 14 5 13 0 20 5 16 0 13 5 17 5 14 5 13 0 20 5 16 0 13 5 Motor W 14 20 14 20 Sound pressure level H M L dB A 32 29 28 35 31 28 32 29 28 35 31 28 Sound power level H M L dB A 47 44 43 50 46 43 47 44 43 50 46 43 Outdoor unit Max total ...

Page 19: ...18 Fan Turbo fan Turbo fan Fan unit Standard air flow H M L m min 13 3 11 2 9 1 13 3 11 2 9 1 Motor W 60 60 Sound pressure level H M L dB A 43 39 34 43 39 34 Sound power level H M L dB A 58 54 49 58 54 49 Outdoor unit Max total length m 70 70 Outer dimension Min length m 7 5 7 5 Height difference Outdoor lower m 30 30 Outdoor high m 30 30 Fan Propeller fan Propeller fan Fan unit Standard air flow ...

Page 20: ...H M L m min 13 0 11 3 9 7 13 0 11 3 9 7 Fan unit Motor W 60 60 Extermal Standard at shipment Pa 10 10 static pressure Set up for tap exchange Pa 10 20 35 50 10 20 35 50 Sound pressure level Under air inlet H M L dB A 45 40 36 45 40 36 Back air inlet H M L dB A 33 31 28 33 31 28 Sound power level Under air inlet H M L dB A 60 55 51 60 55 51 Back air inlet H M L dB A 48 46 43 48 46 43 Outdoor unit M...

Page 21: ... A 18 22 18 22 Fan Centrifugal Centrifugal Centrifugal Centrifugal Fan unit Standard air flow H M L m min 13 0 11 9 9 8 19 0 16 2 13 3 13 0 11 9 9 8 19 0 16 2 13 3 Motor W 120 120 120 120 Sound pressure level H M L dB A 40 37 33 40 37 34 40 37 33 40 37 34 Sound power level H M L dB A 55 52 48 55 52 49 55 52 48 55 52 49 Outdoor unit Max total length m 70 70 70 70 Outer dimension Min length m 7 5 7 ...

Page 22: ... 22 Fan Centrifugal Centrifugal Centrifugal Centrifugal Fan unit Standard air flow H M L m min 13 0 11 2 10 0 18 5 16 7 14 6 13 0 11 2 10 0 18 5 16 7 14 6 Motor W 60 60 60 60 Sound pressure level H M L dB A 36 33 30 38 36 33 36 33 30 38 36 33 Sound power level H M L dB A 51 48 45 53 51 48 51 48 45 53 51 48 Outdoor unit Max total length m 70 70 70 70 Outer dimension Min length m 7 5 7 5 7 5 7 5 Hei...

Page 23: ...rrent A 18 22 18 22 Fan Cross flow fan Cross flow fan Cross flow fan Cross flow fan Fan unit Standard air flow H M L m min 14 0 12 5 10 7 18 5 14 6 12 2 14 0 12 5 10 7 18 5 14 6 12 2 Motor W 30 30 30 30 Sound pressure level H M L dB A 39 36 33 45 41 36 39 36 33 45 41 36 Sound power level H M L dB A 54 51 48 60 56 51 54 51 48 60 56 51 Outdoor unit Max total length m 70 70 70 70 Outer dimension Min ...

Page 24: ...air temperature Cooling C Outside air temperature Heating C 2244AT8 E 2804AT8 E 2244AT7 2804AT7 1 phase 380 415V 50Hz 1 phase 380V 60Hz Power exclusive to outdoor is required Hermetic compressor Hermetic compressor 3 75 3 75 3 75 3 75 4 4 4 4 5 9 5 9 5 9 5 9 Pulse motor valve Pulse motor valve 70 70 70 70 7 5 7 5 7 5 7 5 30 30 30 30 30 30 30 30 1540 1540 1540 1540 900 900 900 900 320 320 320 320 S...

Page 25: ...Pipe length 7 5m 400V 50Hz 3 phase Conditions Indoor DB20 C Outdoor DB7 C WB6 C Air flow High Pipe length 7 5m 400V 50Hz 3 phase 0 20 40 60 80 100 Compressor speed rps 0 18 16 14 12 8 10 6 4 2 0 18 16 14 12 8 10 6 4 2 Current A Current A 0 20 40 60 80 100 Compressor speed rps Conditions Indoor DB27 C WB19 C Outdoor DB35 C Air flow High Pipe length 7 5m 380V 60Hz 3 phase Conditions Indoor DB20 C Ou...

Page 26: ... 55 60 65 70 75 80 85 90 95 100 105 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Outdoor temp C Capacity ratio 0 10 20 30 40 50 60 70 80 90 100 110 120 14 16 18 20 12 10 8 6 4 2 0 2 4 6 8 10 Outdoor temp C Capacity ratio Conditions Indoor DB20 C Indoor air flow High Pipe length 7 5m Conditions Indoor DB27 C WB19 C Indoor air flow High Pipe length 7 5m ...

Page 27: ... 27 2 CONSTRUCTION VIEWS EXTERNAL VIEWS 2 1 Outdoor Unit ...

Page 28: ...er diameter Ø28 6 1 pc Outer diameter Ø25 4 Inner diameter Ø C Inner diameter Ø D Inner diameter Ø D A B 24 22 54 A B C D 74 37 25 4 15 9 42 23 15 9 15 9 43 23 15 9 12 7 35 18 12 7 9 5 34 14 9 5 9 5 36 14 9 5 6 4 Model Gas side RBC DTWP101E Liquid side Q ty 1 2 2 1 2 2 ...

Page 29: ...er diameter Ø9 52 Insulator 300 80 80 100 80 80 100 Ø12 7 Ø6 4 Ø9 5 100 28 10 24 6 26 9 100 35 3 pcs 3 pcs 1 pc 1 pc 1 pc Inner diameter Ø28 6 Outer diameter Ø25 4 24 22 54 Ø25 4 External diameter Ø15 9 46 12 1 pc 1 pc RBC TRP100E Simultaneous Triple Gas side Header assembly Liquid side Branch pipe assembly Gas side socket Liquid side socket ...

Page 30: ...Twin Branch pipe Joint pipe Inner diameter Ø28 6 1 pc Outer diameter Ø25 4 Inner diameter Ø C Inner diameter Ø D Inner diameter Ø D A B 24 22 54 Model RBC TWP101E Gas side Liquid side A B C D Q ty 74 37 25 4 15 9 1 35 18 12 7 9 5 1 ...

Page 31: ... stages 13 13 pass under cool pass TE sensor Distributor PMV 1 PMV 2 Packed valve Ø12 7 Liquid tank Ø45 420 L TL sensor TS sensor Accumulator 8500cc Ø161 6 Cooling Heating TD sensor TO sensor 4 way valve Check joint Low pressure side Solenoid valve Muffler Ø45 230 L Check valve Pressure sensor Compressor DA550A3F 11M Check joint High pressure side Pressure switch Ball valve Ø19 1 P P ...

Page 32: ...neous twin at a target pipe length Data will change depending on the mounted pipe length or combination with the indoor unit RAV SM2804 series Standard Cooling Overload Low load Standard Heating Overload Low load Pressure MPa kg cm g Pd Ps Pd Ps 3 15 0 79 32 1 8 1 3 62 1 12 36 9 11 4 1 66 0 64 16 9 6 5 2 85 0 63 29 1 6 4 3 26 1 06 33 3 10 8 2 05 0 29 20 9 3 0 Pipe surface temperature C Discharge S...

Page 33: ... 1 Outdoor Unit RAV SM2244AT8 Z ZG E RAV SM2804AT8 Z ZG E RAV SM2244AT7 Z ZG RAV SM2804AT7 Z ZG Interface CDB P C board MCC 1599 Noise Filter P C board MCC 1600 Compressor IPDU board MCC 1596 Fan IPDU board MCC 1597 MCC 1436 ...

Page 34: ... Mounted on P C board MCC 1599 Fuse Mounted on P C board MCC 1600 Relay Posistor Compressor thermo Type DA550A3F 11M ICF 280 A100 1 STF 01AJ502E1 VHV 01AH553A1 VPV MOAJ524C0 VPV MOAH551B1 UKV 25D22 ACB 4UB83W CH 44 CH 68 CH 56 MCC 1596 MCC 1597 MCC 1599 MCC 1600 MCC 1436 TLC 25A GAC1 31 5A SCT 31 5A GDM 250V 15A SCT 31 5A FJL 250V 31 5A ET 6 3A EL200 240A2 F M ZPR0YCE 101A 500 US 622 Specification...

Page 35: ...e may become abnormally high so that a rupture or personal injury may be caused 5 After completion of installation work check to make sure that there is no refrigeration gas leakage If the refrigerant gas leaks into the room coming into contact with fire in the fan driven heater space heater etc a poisonous gas may occur 6 When an air conditioning system charged with a large volume of refrigerant ...

Page 36: ...be taken to ensure that water or dust does not enter the pipe interior that no other oil other than lubricating oils used in the installed air conditioner is used and that refrigerant does not leak When using lubricating oils in the piping processing use such lubricating oils whose water content has been removed When stored be sure to seal the container with an airtight cap or any other cover 1 Fl...

Page 37: ...m 0 8 0 8 0 8 1 0 1 0 Dimension mm A B C D 9 1 9 2 6 5 13 13 0 13 5 9 7 20 16 2 16 0 12 9 20 19 4 19 0 16 0 23 23 3 24 0 19 2 34 Flare nut width mm 17 22 24 27 36 Nominal diameter 1 4 3 8 1 2 5 8 3 4 Outer diameter mm 6 4 9 5 12 7 15 9 19 1 Thickness mm 0 8 0 8 0 8 1 0 1 2 Dimension mm A B C D 9 1 9 2 6 5 13 13 2 13 5 9 7 20 16 6 16 0 12 9 23 19 7 19 0 16 0 25 24 0 19 2 28 Flare nut width mm 17 22...

Page 38: ...rack and may be made non removable When choosing the tightening torque comply with values designated by manufacturers Table 6 2 6 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by the manufacturer If any other oil is used the lubricating oils may deteriorate and cause the compressor to burn out Table 6 2 6 Tightening torque of flare for R410A Refer...

Page 39: ...gerant in the cycle When the compound gauge s pointer has indicated 0 1 Mpa 76 cmHg place the handle Low in the fully closed position and turn off the vacuum pump s power switch Keep the status as it is for 1 to 2 minutes and ensure that the compound gauge s pointer does not return Set the refrigerant cylinder to the electronic balance connect the connecting hose to the cylinder and the connecting...

Page 40: ...oy mainly composed of silver and copper It is used to join iron copper or copper alloy and is relatively expensive though it excels in solder ability 2 Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 Low temperature brazing filler Low temperature brazing filler is generally called solder and is an alloy of tin and lead Since it is we...

Page 41: ...efore use a flux which does not contain chlorine 3 When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water 4 Remove the flux after brazing 6 5 3 Brazing As brazing work requires sophisticated techniques experiences based upon a theoretical knowledge it must be performed by a person qualified In order to prevent the oxide film from occurring...

Page 42: ...olored oil a large quantity of the remains mixture of foreign matter or a large quantity of sparkle remained wear out powder is observed the cause of trouble will occur 8 Installation and removal of the air conditioner are repeated with temporary installation by lease and etc 9 In case that type of the refrigerator oil of the existing air conditioner is other than the following oil Mineral oil Sun...

Page 43: ...g size to size for R410A Airtight test Vacuum dry Refrigerant charge Gas leak check When using a Ø19 1 mm pipe for the gas pipe of the first branching pipe machining size due to pipe compression Turn the existing pipe switch on the cycle control P C board of the outdoor unit to ON side At shipment from factory OFF ON for existing pipe Refer to the table below Be sure to set the contents in the tab...

Page 44: ...s sold separately When the pipe corresponds to any of the following do not use it Install a new pipe instead The pipe has been opened disconnected from indoor unit or outdoor unit for a long period The pipe has been connected to an outdoor unit that does not use refrigerant R22 R410A or R407C The existing pipe must have a wall thickness equal to or larger than the following thicknesses Do not use ...

Page 45: ...reactor CH44 CN101 White Connector for MCC 1597 CN502 CN03 Black Terminal for power relay F02 Electric circuit protective fuse 500V 31 5A CN02 White Terminal for MCC 1600 CN17 F01 Electric circuit protective fuse 500V 31 5A CN01 Red Terminal for power relay CN04 Red Terminal for PTC thermistor CN09 Yellow CN10 Yellow Terminal for reactor CH44 CN201 Red CN202 White CN203 Black Compressor output ter...

Page 46: ... MCC 1599 CN802 CN602 Black Connector for MCC 1600 CN51 F500 Electric circuit protective fuse 250V 15A P501 Black Lead wire for grounding CN505 Red Connector for MCC 1596 CN851 CN502 White Connector for MCC 1596 CN101 CN700 Blue Connector for MCC 1436 CN03 or CN07 CN500 Red Connector for MCC 1600 CN23 and reactor CH68 ...

Page 47: ...Connector CN01 White Inter unit cable connector CN02 Red Connector for MCC 1600 CN10 and CN19 CN802 White Connector for MCC 1597 CN504 CN708 Blue Connector for power relay coil CN608 White Connector for MCC 1600 CN50 Temp sensor connector CN604 White TL sensor CN603 White TD sensor CN602 Yellow TO sensor CN601 White TE sensor CN600 White TS sensor Specific operation switch SW801 SW804 SW805 SW806 ...

Page 48: ...tor protective fuse 250V 6 3A CN07 Black Power supply terminal L3 F03 Varistor protective fuse 250V 6 3A CN20 White Power supply terminal L2 CN08 Gray Neutral terminal CN10 Red Terminal for MCC 1599 CN02 and Terminal for PTC thermistor CN16 Red Terminal for power relay CN17 White Terminal for MCC 1596 CN02 CN18 Black Terminal for power relay CN19 Gray Terminal for MCC 1599 CN02 CN09 Brown Terminal...

Page 49: ...r resulting in dramatic reduction in the durable life of the compressor In the event of malfunction and repair of the compressor restart operation after checking that there are no errors in the resistance values or the refrigerating cycle of each sensor 2 Discharge temperature release control 1 This control lowers the revolution number of the compressor in the event that the discharge temperature ...

Page 50: ... minutes after start up by a maximum fan tap corresponding to the zones in the table below Thereafter fan control is performed using the temperature from the TE sensor 3 When TE 24 C continues for 5 minutes the compressor is stopped The compressor is placed in the same state as a normal thermostat OFF without an error display The compressor is restarted after approximately 2 minutes 30 seconds and...

Page 51: ...C continues for 20 seconds Status TEO TE 2 C continues for 20 seconds Status TE 23 C continues for 20 seconds When compressor operation status TE 2 C is calculated for d minutes A Zone D Zone B Zone C Zone Normal operation Maintain frequency of current operation Reduce operating frequency Cease reduction of operating frequency and maintain frequency of current operation l1 value A SM224Type 15 7 S...

Page 52: ...tinued for 10 minutes If the error count becomes 10 without clearing the error is determined and reactivation is not performed 5 For the error display contents confirm on the check code list 7 Heat sink temperature detection control 1 IGBT overheating prevention is protective control performed by a thermistor TH sensor in proximity to IGBT 2 When a temperature of TH 83 C is detected the fan tap is...

Page 53: ... starting operation or when TC 26 C When Ps 0 19 MPa When 4 way valve is OFF during defrost startup When 2 minutes elapsed after four way valve is ON after defrost completion 3 4 When the DOWN zone and the HOLD zone UP prohibition are superimposed for example during current release control or discharge temperature release control DOWN zone and the HOLD zone have priority over oil recovery control ...

Page 54: ...on of current is determined by TD and TO sensors When the TO sensor is defective a backup control is automatically performed by the TE sensor When TO sensor is defective make a determination using the LED display of the outdoor interface board 4 The power is turned off when TD is 30 C or more 100W Total power consumption of inverter and compressor NOTE While heating and electrifying the winding wi...

Page 55: ...in heating operation Does not outside low temperature operation control work in cooling operation Is not defrost operation performed 4 ON OFF operation cannot be performed from remote controller Is not the control operation performed from outside remote side Is not automatic address being set up When the power is turned on at the first time or when indoor unit address setting is changed the operat...

Page 56: ...r Is not forced operation performed Is not the control operation performed from outside remote side Is not automatic address being set up Is not being carried out a test run by operation of the outdoor controller a Did you return the cabling to the initial positions b Are connecting cables between indoor unit and receiving unit correct 2 Troubleshooting procedure When the power is turned on at the...

Page 57: ...eiving unit and indoor unit Receiving error Receiving unit Miswiring or wire connection error Sending error Communication stop between receiving unit and indoor unit Duplicated indoor unit No Setup error Duplicated master units of remote controller Communication error between CPUs on indoor unit P C board Wire connection error between indoor units Indoor power OFF Communication stop between indoor...

Page 58: ...or Temp Sensor miswiring TE TS Indoor EEPROM error Outdoor EEPROM error Compressor break down Outdoor compressor system error 1 Compressor lock Current detection circuit error Power supply outdoor P C board error Case thermostat worked Compressor overheat outdoor wiring error PS pressure sensor error Outdoor unit low pressure protective operation low pressure system error Duplicated master indoor ...

Page 59: ...on Timer Ready Simultaneous flash Operation Timer Ready Alternate flash Check code Cause of trouble occurrence During test run Disagreement of cool heat Automatic cool heat setting to automatic cool heat prohibited model or setting of heating to cooling only model ...

Page 60: ...me Filter sign time Indoor discharge temperature 1 Unit C C C C rpm 100h 1h C Outdoor unit data Item code 60 61 62 63 65 6A 6D 70 72 73 F1 Data name Outdoor heat exchanger Coil temperature TE Outside temperature TO Compressor discharge temperature TD Compressor suction temperature TS Heat sink temperature THS Operation current 1 10 Outdoor heat exchanger Coil temperature TL Compressor operation fr...

Page 61: ...oor Explanation of error contents Open Short of discharge temp sensor was detected Open Short of heat exchanger temp sensor was detected Miswiring between TE sensor and TS sensor Open Short of outside temp sensor was detected Open Short of heat exchanger temp sensor was detected Open Short of suction temp sensor was detected Open Short of heat sink temp sensor Board installed was detected Misconne...

Page 62: ... Detection Indoor Indoor Indoor Indoor Indoor Indoor Indoor Indoor Network adapter Network adapter Center Network adapter Center Network adapter Explanation of error contents Open Short of heat exchanger TCJ was detected Open Short of heat exchanger TC was detected Open Short of room temp TA was detected EEPROM error Other error may be detected If no error automatic address is repeated Indoor AC f...

Page 63: ...d Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Judgment and measures 1 Check cable...

Page 64: ...top Stop Stop Condition Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed whe...

Page 65: ...sensor 3 Check compressing power error of compressor 4 Check 4 way valve error 5 Check outdoor P C board error 1 Check service valves are fully opened Gas side Liquid side 2 Check clogging of outdoor PMV PMV1 2 3 Check SV2 circuit 4 Check Ps sensor error 5 Check clogging of indoor filter 6 Check clogging of refrigerant pipe 7 Check of outdoor fan operation In heating mode 8 Check short of refriger...

Page 66: ...isplayed when error is detected Displayed when error is detected Displayed when error is detected Judgment and measures Power supply error of remote controller Indoor EEPROM error 1 Check remote controller inter unit wiring 2 Check remote controller 3 Check indoor power wiring 4 Check indoor P C board 5 Check indoor EEPROM including socket insertion Automatic address repeating phenom enon generate...

Page 67: ...ard Defect Replace Check outdoor P C board MCC 1599 Defect Replace Correct wiring and inter unit cable Is setting of group address of remote controller correct Are inner wiring and inter unit cables 1 2 3 normal Are connection of CN01 of MCC 1599 and wiring of terminal blocks 1 2 3 normal Does D502 Orange LED flash after power supply is turned on again YES YES YES YES NO NO NO NO Check code E04 Ou...

Page 68: ...l Display 1 Display 2 l l l l l Display 1 Display 2 l l l l Display 1 Display 2 l l l l l Display 1 Display 2 l l l Display 1 Display 2 l l l l Check and troubleshooting Item without special mention Indicates part of outdoor unit Discharge temp sensor TD error There is a possibility that it is one of the following errors Confirm LED on outdoor P C board to judge which error it is Heat exchanger te...

Page 69: ... 1599 Defect Replace Is CN602 connection normal Is resistance value of TO sensor normal YES NO Correct connector Sensor error Replace Check outdoor P C board MCC 1599 Defect Replace Is CN600 connection normal Is resistance value of TS sensor normal YES NO Check outdoor P C board MCC 1599 Defect Replace Check outdoor P C board MCC 1599 Defect Replace Correct connector Sensor error Replace Correct c...

Page 70: ... power supply voltage normal AC342 to 457V Is wire connection normal Compressor lead Board side Compressor side Reactor lead Power supply lead YES YES YES NO NO NO Pressure by pressure gauge Check joint Pressure display on LED display Output power of I F CDB P C board If and and are different an error of the pressure sensor is considered If and are different check I F P C board Connector CN606 Whi...

Page 71: ...essor lock Replace Check outdoor P C board Defect Replace Check TE TS sensors and PMV Defect Replace Check outdoor P C board MCC 1596 Defect Replace YES YES YES YES YES NO NO NO NO NO Check crushed or broken pipe Defect Correct and Replace Correct defective position Replace defective part Open valve fully Repair defectives position Recharge refrigerant Check outdoor P C board MCC 1599 Defect Repla...

Page 72: ...efrigerant system connected Are gas pipe liquid pipe and service valve of the outdoor unit fully opened Are parts related to the indoor fan motor normal 1 Connection of connector 2 Capacitor 3 Motor 4 Fan Open the service valve fully Replace low pressure sensor Correct SV2 circuit Correct wiring to regular wiring Shortage of refrigerant blocking pipe breakage Repair the defective position Check in...

Page 73: ...on error between MCU Heat sing temp sensor TH error EEPROM error Unset model type Heat sink overheat error Gas leak detection 4 way valve inverse error Communication error between MCU 1 Connection check between CN802 of MCC 1599 and CN504 of MCC 1597 and also connection check between CN505 of MCC 1597 and CN851 of MCC 1596 2 Check outdoor P C board MCC 1596 MCC 1597 MCC 1599 Defect Replace Heat si...

Page 74: ...ak Is refrigerant charge amount adequate YES YES NO YES NO NO NO YES Connection of connectors Fan IPDU Fan motor Wiring Is circuit wiring normal Is there no fan breakage or coming off Is service valve fully opened Does cooling outdoor fan normally operate B Cooling operation B Cooling operation C Heating operation Doesn t high pressure switch operate Are parts of high pressure switch normal Reset ...

Page 75: ...efer to P20 column Are characteristics of TC and TCJ sensor resistance value normal Are connections of connectors capacitors and fan motor normal Heating operation Does the heating indoor fan normally operate Clogging by refrigerant overcharge Pipe breakage Abnormal overload C Is there any element which blocks indoor heat exchanger Filter clogging Clogging of heat exchanger Short circuit Eliminati...

Page 76: ... of motor drive element of outdoor P C board MCC 1596 Q201 Did not forget to apply radiation grease to rear side of Q201 Open valve fully Correct and replace piping Correct connector Sensor error Replace Check outdoor P C board MCC 1599 Defect Replace Correct defective position Replace defective part Repair defective position Recharge refrigerant Error OK YES YES YES YES NO NO NO NO Is there no cr...

Page 77: ...rigerant clogging of cycle broken pipe abnormal overload etc Defect Correct defective position Check overcharge of refrigerant clogging of cycle broken pipe abnormal overload etc Defect Correct defective position Eliminate interfering element Eliminate interfering element Heating season Heating operation Cooling season Cooling operation Is there no element which interfere heat exchange of outdoor ...

Page 78: ... Display 1 Display 2 l l l Display 1 Display 2 l l l Display 1 Display 2 l l Display 1 Display 2 l l Check and troubleshooting Item without special mention Indicates part of outdoor unit Fan system error Single operation check for outdoor fan 1 Set SW804 of Dip switch as the following figure and then push SW801 for approx 1 second to check single operation of outdoor fan Use this method to check w...

Page 79: ...nsor Outdoor unit heat sink temp sensor is incorporated in the outdoor control P C board the resistance value cannot be measured Temperature C 0 10 20 25 30 40 50 60 70 80 90 100 Resistance value kΩ Ω Ω Ω Ω Minimum value Standard value Maximum value 32 33 33 80 35 30 19 63 20 35 21 09 12 23 12 59 12 95 9 75 10 00 10 25 7 764 7 990 8 218 5 013 5 192 5 375 3 312 3 451 3 594 2 236 2 343 2 454 1 540 1...

Page 80: ... to usual display 2 3 1 SET TIME TIMER SET TEST FILTER RESET TEMP CL FAN SAVE SWING FIX VENT MODE ON OFF UNIT LOUVER 9 1 Calling of Error History Contents The error contents in the past can be called Procedure 1 Push SET TEST buttons simultaneously for 4 seconds or more to call the service check mode Service Check goes on the CODE No 01 is displayed and then the content of the latest alarm is disp...

Page 81: ...troller Remote controller operation is available Approx 50 seconds after power ON Regular communication between indoor units Every 30 seconds Master Follower Regular communication on the identical pipe every 30 seconds Twin Master Follower When the above status changes immediately communicates Repetition The unit without power feed waits entirely Waiting status is released by system start Reboot w...

Page 82: ...heat exchanger into blast path and it is accumulated the control to prevent generation of motor lock is validated When outside temp is below 0 C though the compressor stops the outdoor fan operates with W5 The defrost interval is cut to shorten it than the standard status For contents of control and cutting method refer to Section 7 4 Defrost control When it is needed to lower the maximum value of...

Page 83: ...03 are OFF or when any of D800 to D804 goes on LED displays that the outdoor controller detects an error When status of SW803 is other than OFF various indications are displayed Power ON display When the power of the outdoor unit is turned on LED goes on When SW801 and SW804 operate the specific operation LED flashes Part No SW800 SW803 SW801 SW804 SW802 Specifications Pushdown button switch DIP s...

Page 84: ... off once If an error generates at present the same contents as those of error which is generating at present are displayed Only error of TO sensor is not displayed by this setting Confirm it by setting of error which is generating at present Temperature sensor display The detected value of temperature sensor is displayed Current display The current value which flows in the outdoor unit is display...

Page 85: ...l l l l l Display 2 SW800 operation lllll ll ll l ll ll lll l ll l l l l l llll l lll lll ll ll l ll l ll l lll ll ll l ll ll l ll ll l l l l l l Error contents Normal Discharge temp sensor TD error Heat exchanger temp sensor TE error Heat exchanger temp sensor TL error Outside temp sensor TO error Suction temp sensor TS error Heat sink temp sensor TH error Heat exchanger sensor TE TS miswiring Ps...

Page 86: ... 60 to 64 65 to 69 70 to 74 75 to 79 80 to 84 85 to 89 90 to 94 95 to 99 100 to 104 105 to 109 110 to 114 115 to 119 Over 120 Sensor error unconnected Current A 0 to 0 9 1 to 1 9 2 to 2 9 3 to 3 9 4 to 4 9 5 to 5 9 6 to 6 9 7 to 7 9 8 to 8 9 9 to 9 9 10 to 10 9 11 to 11 9 12 to 12 9 13 to 13 9 14 to 14 9 15 to 15 9 16 to 16 9 17 to 17 9 18 to 18 9 19 to 19 9 20 to 20 9 21 to 21 9 22 to 22 9 23 to ...

Page 87: ...st run by this setting cannot be cleared on the indoor remote controller Be sure to clear the test run by operation of the outdoor unit Push SW801 again for 1 second SW804 Operation when pushdown button switch SW801 is pushed Refrigerant recovery operation The outdoor unit performs cooling operation The indoor unit does not work by this operation alone Therefore operate the fan beforehand Indoor c...

Page 88: ...3 When pushing SW801 again or when 2 minutes elapsed the operation returns to the normal control Outside output relay operation RY704 CN704 Turn on relay for outside output RY704 When pushing SW801 again or when 2 minutes elapsed the operation returns to the normal control Forced start command The indoor unit connected to the system is forcedly started The indoor unit starts operation by setting o...

Page 89: ... and an indoor unit are connected or when an outdoor unit is connected to each indoor unit respectively in the group operation even if multiple refrigerant lines are provided the automatic address setup completes with power ON of the outdoor unit The operation of the remote controller is not accepted while automatic address works Approx 4 to 5 minutes When the following addresses are not stored in...

Page 90: ...ervice data Header unit Representative unit Master Twin This unit communicates with the indoor unit follower which serial communicates with the outdoor units and sends receives signal Command from compressor to from the outdoor units as the representative of the cycle control in the indoor units of the identical line address within the minimum unit which configures one of the refrigerating cycles ...

Page 91: ...data thermo status of the follower Without identical line address indoor outdoor serial and then finally controls the outdoor compressor matching with its own thermo status The header unit sends this command information to the follower unit Follower unit The follower unit receives the indoor unit data from the header With identical line address indoor outdoor serial and then performs the thermo op...

Page 92: ...ster Header 1 1 1 2 1 1 Sub Follower 10 2 3 Automatic Address Example from Unset Address No miswiring 1 Standard One outdoor unit Only turning on source power supply Automatic completion 2 Group operation Multiple outdoor units Multiple indoor units with serial communication only without twin Only turning on source power supply Automatic completion 3 Multiple groups operation Change is necessary M...

Page 93: ...e remote controller refer to the Installation Manual enclosed with the remote controller Use 2 core shield wire MVVS 0 5 to 2 0 mm or more for the remote controller wiring in the simultaneous twin simultaneous triple and simultaneous double twin systems to prevent noise problems Be sure to connect both ends of the shield wire to earth leads Connect earth wires for each indoor unit in the simultane...

Page 94: ...ting from remote controller 1 Push SET CL TEST buttons simultaneously for 4 seconds or more 2 Line address Using the temperature setup buttons set 12 to the CODE No 3 Using timer time buttons set the line address 4 Push SET button OK when display goes on 5 Indoor unit address Using the temperature setup buttons set 13 to the CODE No 6 Using timer time buttons set 1 to the line address 7 Push SET b...

Page 95: ...l remote controller Group control unit other unit numbers are also displayed every pushing UNIT LOUVER button 2 To know the position of indoor unit body by address To confirm the unit No in the group control Follow to the procedure during operation in this procedure the indoor units in group control stop Procedure The indoor unit numbers in the group control are successively displayed and fan louv...

Page 96: ...ailure to clean the indoor outdoor units regularly will cause shortage of capacity freezing water leakage or trouble on the compressor Part name Heat exchanger Fan motor Filter Fan Suction Discharge grille Drain pan Face panel Louver External appearance Object Indoor Outdoor Contents of check Blocking with dust damage check Audibility for sound Visual check for dirt and breakage Visual check for s...

Page 97: ...sed where the valve is connected Be sure to use the Ø19 1 mm pipe and joint provided as accessories for the pipe connection Before installing the unit check that the unit has the correct model name to prevent the wrong unit from being installed in the wrong place Before proceeding to weld the refrigerant pipe be sure to pass nitrogen through the pipe Before installing the indoor units read the ins...

Page 98: ...ls are securely fixed so preventing any external forces having a negative effect on the terminals When the air conditioner cannot cool or heat a room well contact the dealer from whom you purchased the air conditioner as refrigerant leakage is considered as the cause In the case of repair that requires refill of refrigerant ask service personnel about details of the repair The refrigerant used in ...

Page 99: ...ve for Ø12 7 mm and Ø19 1 mm Pipe cutter Cutting pipes R22 Conventional tools Welding machine and nitrogen cylinder Welding pipes R22 Conventional tools Refrigerant charging measure Charging refrigerant R22 Conventional tools 6 EN Digital Inverter 4 INSTALLATION CONDITIONS Before installation Be sure to prepare to the following items before installation Length of refrigerant pipe Do not connect a ...

Page 100: ...e the discharge air is not blocked 2 When an outdoor unit is installed in a location that is always exposed to strong winds like a coast or on the high stories of a building secure normal fan operation by using a duct or wind shield 3 When installing the outdoor unit in a location that is constantly exposed to strong winds such as on the upper stairs or rooftop of a building apply the windproofing...

Page 101: ...stallation in front and rear Open above and to the right and left of the unit The height of an obstacle in both the front and rear of the unit should be lower than the height of the outdoor unit Standard installation Installation of Outdoor Unit Before installation check the strength and horizontalness of the base so that abnormal sounds do not emanate According to the following base diagram fix t...

Page 102: ...cally Joint accessory Joint accessory Brazing 12 EN Digital Inverter Tightening of Connecting Part 1 Align the centers of the connecting pipes and fully tighten the flare nut with your fingers Then fix the nut with a wrench as shown in the figure and tighten it with a torque wrench 2 As shown in the figure be sure to use two wrenches to loosen or tighten the flare nut of the valve on the gas side ...

Page 103: ...ate air in the connecting pipes when installing the unit Do not discharge the refrigerant gas to the atmosphere to preserve the terrestrial environment Use a vacuum pump to discharge the air nitrogen etc that remains in the set If air remains the capacity may decrease For the vacuum pump be sure to use one with a backflow preventer so that the oil in the pump does not backflow into the pipe of the...

Page 104: ...rant Replenish liquid refrigerant When gaseous refrigerant is replenished the refrigerant composition varies which disables normal operation Valve size Ø12 7 mm 50 to 62 N m 5 0 to 6 2 kgf m Ø19 1 mm 20 to 25 N m 2 0 to 2 5 kgf m Charge port 14 to 18 N m 1 4 to 1 8 kgf m Valve unit Charge port Using a minus screwdriver turn it counterclockwise by 90 until it hits the stopper Full open Flare nut Ha...

Page 105: ...wire 5 u 2 5 mm2 or more H07 RN F or 60245 IEC 66 Indoor outdoor connecting wires 4 u 1 5 mm2 or more H07 RN F or 60245 IEC 66 1 2 A B 3 1 2 A B 3 1 2 3 L1 L2 L3 Ν 1 2 A B 3 Outdoor unit Remote controller Indoor unit main Leakage breaker Input power 380 415 V 3N 50Hz 380 V 3N 60Hz Indoor unit secondary Indoor unit secondary 18 EN Digital Inverter How to wire 1 Connect the connecting wire to the te...

Page 106: ...ts will need to be cleaned at least once every 3 months This cleaning and maintenance should be carried out by a qualified service person Failure to clean the indoor outdoor units regularly will result in poor performance icing water leaking and even compressor failure 12 AIR CONDITIONER OPERATING CONDITIONS For proper performance operate the air conditioner under the following temperature conditi...

Page 107: ...eating performance may be reduced depending on the outside air temperature and room temperature Recovering Refrigerant Use the refrigerant recovery equipment to recover the refrigerant Reference outside diameter mm Wall thickness mm Material 6 4 0 8 9 5 0 8 12 7 0 8 15 9 1 0 19 1 1 2 22 2 1 0 Half hard 28 6 1 0 Half hard SW802 When shipped from factory When using existing pipe 1 2 3 4 ON 1 2 3 4 O...

Page 108: ...or the gas leaked from the pipes and the pipes were not repaired and refilled There is the possibility of rain water or air including moisture entering the pipe 4 When refrigerant cannot be recovered There is the possibility that a large quantity of dirty oil or moisture remains inside the pipes 5 When a commercially available dryer is attached to the existing pipes There is the possibility that c...

Page 109: ...y or black color If there is discharge of remains it is judged that a large quantity of remains are present Piping necessary to change the flare nut machining size due to pipe compression Clean the pipes or use new pipes In case of twin pipes also be sure to flush the branching pipe Note Turn the existing pipe switch on the cycle control P C board of the outdoor unit to ON side At shipment from fa...

Page 110: ...del switching Settings Settings LED indication switching Special operations for service Special operations for service Setting Cut these jumper wires according to the following table Set these jumper wires to the settings of the P C board before replacement Set SW802 to the setting of the P C board before replacement Set SW803 to all OFF Set SW804 to all OFF Set SW805 to all OFF Model name Factory...

Page 111: ... service compressor Leakage check Vacuuming Charge the refrigerant END Turn off the leakage breaker NO Open PMV forcedly and then recover refrigerant using a refrigerant recovery unit Never recover the refrigerant to the outdoor unit For the refrigerant recovery work during reinstallation of repair work be sure to use the refrigerant recovery unit Recovery of refrigerant to the outdoor unit is una...

Page 112: ...ng wire must be affixed along the crossover pipe using a commercially available bundling band so that they do not make contact with the compressor gas valve gas pipe and discharge pipe 3 Attach the front panel Hexagonal screws Ø4 10 3 pcs Remarks Service panel Top plate 1 Detachment 1 Carry out the operation in 1 of Q above 2 Remove screws for the discharge port cabinet and the inverter assembly S...

Page 113: ...anger ST1T Ø4 8 1 pc 5 Remove screw for the discharge port cabinet and the motor base ST1T Ø4 8 2 pcs 6 Remove screws for the discharge port cabinet and the fin guard Hexagonal screw Ø4 10 2 pcs 2 Attachment 1 Place upper left side of discharge cabinet in cut on upper side of end board of heat exchanger and fix with a screw ST1T Ø4 8 1 pc 2 Mount other removed screws into original positions Remark...

Page 114: ...w for the side cabinet and the bottom plate Hexagonal screw Ø4 10 1 pc 6 Remove screws for the side cabinet heat exchanger and the fin guard Hexagonal screw Ø4 10 4 pcs 7 Remove the screw of the holder fixing plate and the side cabinet C type Ø4 8 1 pc 2 Attachment 1 Temporarily suspend the side cabinet on the inverter assembly using the hook 2 Mount the removed screws in the opposite procedure to...

Page 115: ...nverter assembly 5 Remove water proof sheet rubber sheet and sound insulation plate upper 6 Remove terminal cover of compressor and remove compressor lead 7 Pull up the inverter assembly at upper side to remove hook of partition plate rear left part 2 Attachment 1 Mount the inverter assembly on the partition plate CAUTION When mounting the inverter assembly on the partitioning plate ensure proper ...

Page 116: ...way coil 3P White CN606 Pressure sensor 4P White CN690 High pressure switch 3P Green CN802 Connection with Fan IPDU board 5P white CN609 Case thermo 2P Blue CN708 Magnet switch 2P Blue CN608 Connection with noise filter board 2P White CN01 Indoor Outdoor connection terminal 5P White CN02 Power relay 3P Red Remove connectors after unlocking housing section 3 Remove the claws of the supports 4 posit...

Page 117: ... CN602 Noise filter board 2P White CN504 Interface board 5P Blue CN505 Compressor IPDU board 5P Red Connectors should be removed after unlocking the housing section 3 Remove screw fixing the earth wire 4 Remove the claw of the support 3 positions fixing the board and the screw 5 positions fixing the heat sink and then remove the Fan IPDU board 2 Attachment 1 Mount Fan IPDU board 2 Mount components...

Page 118: ...amp Then slide the inverter assembly front upwardly and remove 3 Remove the lead wires connector to other components from the noise filter board CN05 Power supply terminal block red CN06 Power supply terminal block White CN07 Power supply terminal block Black CN24 Power supply terminal block White CN08 Power supply terminal block Gray CN09 Connection to earth Brown CN50 Interface board 2P White CN...

Page 119: ...itions fixing the inverter assembly IPDU and then remove the lead wire from the top clamp 4 Slide and remove the inverter assembly IPDU rotate through 90 degrees and place the base facing the front surface 5 Remove the lead wire and connector to other components from the compressor IPDU board CN01 Relay Red CN02 Noise filter board White CN03 Relay Black CN04 Posister Red CN07 Power supply terminal...

Page 120: ...avoid contact of the fan motor lead with the propeller fan Attach the motor lead fixing rubber member to the partition board so that the projection is on the refrigerating cycle side Ensure that the heat exchanger does not come into contact with the fan motor lead CAUTION Ensure affixation of the fan motor lead to the motor base using a metal band of the motor base and a commercially available bun...

Page 121: ...7 Remove the terminal cover of the compressor and then remove the compressor lead and the case thermostat CAUTION Ensure that the removed wiring terminals are always insulated with insulation tape The only wiring removed is the wiring for performing exchange of the compressor The power lead connection section of the compressor is a round terminal connection 8 Remove the sensor pipe cover fixed to ...

Page 122: ...nd the high pressure check joint of the liquid pipe and the gas pipe valve and then operate the vacuum pump 2 Carry out vacuuming until the vacuum low pressure gauge indicates 1 mmHg CAUTION Before vacuuming open the pulse motor valve fully If the pulse motor valve is closed vacuuming may be impossible of the heat exchanger in the outdoor unit Forcible fully opened method for the pulse motor valve...

Page 123: ...e hooking claws 5 positions CAUTION Check that all the hooking claws are fixed at the specified positions 2 After mounting fix the fan guard with screws Hexagonal screws Ø4 10 2 pcs 3 Attach and mount the claws 3 positions on the upper side of the bellmouth in the square hole of the discharge cabinet 4 After mounting fix with a screw ST1T Ø4 8 2 pcs Remarks Claw 3 positions Claw 3 positions Bellmo...

Page 124: ...LIST 15 1 Outdoor Unit RAV SM2244AT8 Z ZG E RAV SM2804AT8 Z ZG E 43 53 8 41 46 42 13 14 11 12 60 30 40 31 32 7 20 21 19 35 47 55 56 9 48 10 49 36 37 18 5 52 39 4 25 26 27 1 44 45 16 17 22 23 24 58 59 28 29 38 2 3 6 51 50 61 15 33 34 57 ...

Page 125: ...ound Out 38 43100329 Cabinet Ass y Out 39 43100332 Cabinet Ass y Up 40 43100335 Cabinet Ass y Front 41 43100338 Panel Ass y Side 42 43100341 Cabinet Ass y Top 43 43150321 Sensor Ass y Low Pressure NSK BC010F 067 44 43197164 Nut Flange 45 43047669 Nut Flange 46 43196113 Bushing 47 43149324 Rubber Cushion 48 43047692 Bonnet 49 43147451 Bonnet 3 4 IN 50 43147649 Strainer 51 4314Q008 Strainer 52 43063...

Page 126: ... 126 15 2 Inverter Assembly RAV SM2244AT8 Z ZG E RAV SM2804AT8 Z ZG E TS TE TO TD TL 715 706 707 718 719 718 719 711 702 705 704 722 716 713 709 708 709 701 703 720 720 720 712 714 721 717 710 ...

Page 127: ...390 P C Board Ass y MCC 1596 Comp IPDU 712 4316V391 P C Board Ass y MCC 1597 Fan IPDU 713 4316V392 P C Board Ass y MCC 1599 CDB 714 4316V398 P C Board Ass y MCC 1600 N F 715 43063325 Holder Sensor 6 6 35 8 716 4316V393 P C Board Ass y MCC 1436 717 43160590 Fuse 6 3A AC250V 718 43282001 Bushing 719 43183020 Collar 720 43063248 Supporter Ass y 721 43060639 Fuse 25A 250V 722 43163015 Supporter Model ...

Page 128: ... 46 42 13 14 11 12 60 30 40 31 32 7 20 21 19 35 47 55 56 9 48 10 49 36 37 18 5 52 39 4 25 26 27 1 44 45 16 17 22 23 24 58 59 28 29 38 2 3 6 51 50 61 15 33 34 57 15 3 Outdoor Unit RAV SM2244AT7 Z ZG RAV SM2804AT7 Z ZG ...

Page 129: ...ator Sound Out 38 43100329 Cabinet Ass y Out 39 43100332 Cabinet Ass y Up 40 43100335 Cabinet Ass y Front 41 43100338 Panel Ass y Side 42 43100341 Cabinet Ass y Top 43 43150321 Sensor Ass y Low Pressure NSK BC010F 067 44 43197164 Nut Flange 45 43047669 Nut Flange 46 43196113 Bushing 47 43149324 Rubber Cushion 48 43047692 Bonnet 49 43147451 Bonnet 3 4 IN 50 43147649 Strainer 51 4314Q008 Strainer 52...

Page 130: ... 130 15 4 Inverter Assembly RAV SM2244AT7 Z ZG RAV SM2804AT7 Z ZG TS TE TO TD TL 715 706 707 718 719 718 719 711 702 705 704 722 716 713 709 708 709 701 703 720 720 720 712 714 721 717 710 ...

Page 131: ... 4316V390 P C Board Ass y MCC 1596 Comp IPDU 712 4316V391 P C Board Ass y MCC 1597 Fan IPDU 713 4316V392 P C Board Ass y MCC 1599 CDB 714 4316V398 P C Board Ass y MCC 1600 N F 715 43063325 Holder Sensor 6 6 35 8 716 4316V393 P C Board Ass y MCC 1436 717 43160590 Fuse 6 3A AC250V 718 43282001 Bushing 719 43183020 Collar 720 43063248 Supporter Ass y 721 43060639 Fuse 25A 250V 722 43163015 Supporter ...

Page 132: ... the number of high concentration buildings however the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space individual control energy conservation by curtailing heat and carrying power etc Most importantly the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual air co...

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Toshiba RAV-SM2244AT7, Service Manual

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