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Toshiba RAV-HM301MUT-E, Service Manual

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Toshiba RAV-HM301MUT-E Service Manual Download Page 64

– 64 –

[F30 trouble]

Is connection

of the occupancy

sensor connector
(CN214) normal?

Correct the connector

connection.

Is DN code [B5] setup?

By the wired remote

controller, change the

enable DN code [B5] from

[0000] 

→

 [0001]

Replace the indoor

P.C. board (MCC-1643).

No

Yes

Is the Occupancy

sensor unit normal?

Exchange the Occupancy

sensor unit

No

Yes

No

Yes

Summary of Contents for RAV-HM301MUT-E

Page 1: ...FILE NO A10 2202 PRINTED IN JAPAN Apr 2022 ToMo SERVICE MANUAL AIR CONDITIONER SPLIT TYPE INDOOR UNIT Compact 4 way Cassette type RAV HM301MUT E RAV HM401MUT E RAV HM561MUT E RAV HM561MUT TR ...

Page 2: ...2 6 2 3 Check Code List Indoor 53 6 2 4 Diagnostic Procedure for Each Check Code Indoor Unit 56 7 REPLACEMENT OF SERVICE P C BOARD 69 7 1 Indoor Unit 69 8 SETUP AT LOCAL SITE AND OTHERS 76 8 1 Indoor Unit 76 8 1 1 Test Run Setup on Remote Controller 76 8 1 2 Forced Defrost Setup of Remote Controller For wired remote controller only 78 8 1 3 LED Display on P C Board 78 8 1 4 Function Selection Setu...

Page 3: ...dge related to this work The qualified service person who is allowed to work at heights has been trained in matters relating to working at heights with the air conditioners made by Toshiba Carrier Corporation or alternatively he or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work ...

Page 4: ...executed Indicates possibilities assumed that a danger causing a death or serious injury of the repair engineers the third parties and the users due to troubles of the product after work when an incorrect work has been executed Indicates contents assumed that an injury or property damage may be caused on the repair engineers the third parties and the users due to troubles of the product after work...

Page 5: ...erature parts You might get burned when removing this panel CAUTION Do not touch the aluminium fins of the unit Doing so may result in injury CAUTION BURST HAZARD Open the service valves before the operation otherwise there might be the burst WARNING ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing WARNING Moving parts Do not operate unit with grille removed S...

Page 6: ... with the work When you have noticed that some kind of trouble such as when a check code display has appeared there is a smell of burning abnormal sounds are heard the air conditioner fails to cool or heat or water is leaking has occurred in the air conditioner do not touch the air conditioner yourself but set the circuit breaker to the OFF position and contact a qualified service person Take step...

Page 7: ...hich complies with the ISO 14122 standard and follow the procedure in the ladder s instructions Also wear a helmet for use in industry as protective gear to undertake the work When working at heights put a sign in place so that no one will approach the work location before proceeding with the work Parts and other objects may fall from above possibly injuring a person below When executing address s...

Page 8: ...ed in order to find out exactly where the trouble lies place Keep out signs around the work site before proceeding Third party individuals may enter the work site and receive electric shocks if this warning is not heeded Connect the cut off lead wires with crimp contact etc put the closed end side upward and then apply a water cut method otherwise a leak or production of fire is caused at the user...

Page 9: ...ks recover the refrigerant in the air conditioner execute vacuuming and then newly recharge the specified amount of liquid refrigerant In this time never charge the refrigerant over the specified amount When recharging the refrigerant in the refrigerating cycle do not mix the refrigerant or air other than R32 into the specified refrigerant If air or others is mixed with the refrigerant abnormal hi...

Page 10: ... 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 before opening the service panel If you fail to heed this warning you will run the risk of burning yourself because the fan motor reactor inverter heat sink ...

Page 11: ...ion Manual and the stipulations in the local regulations and laws Install the circuit breaker where it can be easily accessed by the agent 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 h...

Page 12: ...nt Explanations given to user If you have discovered that the fan grille is damaged do not approach the outdoor unit but set the circuit breaker to the OFF position and contact a qualified service person to have the repairs done Do not set the circuit breaker to the ON position until the repairs are completed Relocation Only a qualified installer 1 or qualified service person 1 is allowed to reloc...

Page 13: ...ymouth Devon PL6 7DB United Kingdom Hereby declares that the machinery described below Generic Denomination Air Conditioner Model type Indoor unit Compact 4 way Cassette RAV HM301MUT E RAV HM401MUT E RAV HM561MUT E Commercial name Super Digital Inverter Series Air Conditioner Complies with the provisions of the Supply of Machinery Safety Regulations 2008 Name Sato Kazuhisa Position Senior Manager ...

Page 14: ...ure to check for leakage refrigerant or residual refrigerant If the leakage refrigerant comes into contact with fire a poisonous gas may occur or it may cause a fire Keep adequate ventilation during the work 4 When refrigerant gas leaks during work execute ventilation If the leakage refrigerant comes into contact with a fire a poisonous gas may occur or it may cause a fire 5 In places where instal...

Page 15: ...as charge it with liquid 3 Pipe Materials For the refrigerant pipes copper pipe and joints are mainly used It is necessary to select the most appropriate pipes to conform to the standard Use clean pipes or joints to which little impurities adhere 1 Copper pipe Be sure to select the pipes with copper thickness in the table below since the pressure of an air conditioner using R32 is higher than that...

Page 16: ...f the equipment but also a fire etc R410A tools available Partly unavailable R410A tools unavailable No Installation service tools Tools Equipment specification 1 Flare tool Clutch type Pipe flaring Use Applicability to R32 air conditioner or not Applicability to R22 air conditioner or not 5 Charge hose High voltage 3 Torque wrench Tightening of flare nut 6 Vacuum pump Vacuum drying Note 3 1 2 20U...

Page 17: ...quired for installation and servicing 㻝㻜㻜㻜㻌㼛㼞㻌㼙㼛㼞㼑 㻝㻜㻜㻜㻌㼛㼞㻌㼙㼛㼞㼑 㻝㻡㻌㼛㼞㻌㼙㼛㼞㼑 㻝㻡㻌㼛㼞㻌㼙㼛㼞㼑 An obstacle 㼛㼞㻌㼙㼛㼞㼑 㻟㻜㻜㻌㼛㼞㻌㼘㼑㼟㼟 Indoor unit Stand up Bottom face of ceiling standing size Stand up 450 Check port 㻞㻜㻜 Hanging bolt M10 or W3 8 Procured by locally 㻴㼍㼚㼓㼕㼚㼓㻌㼎㼛㼘㼠㻌㼜㼕㼠㼏㼔㻌㻡㻟㻡 㻴㼍㼚㼓㼕㼚㼓㻌㼎㼛㼘㼠㻌㼜㼕㼠㼏㼔㻌㻠㻥㻢㻌㼠㼛㻌㻡㻟㻤 㻢㻟㻢 㼛㼞㻌㼘㼑㼟㼟 㻤㻡㻜㻌㼛㼞㻌㼘㼑㼟㼟 㻡㻟 㻝㻥㻟 㻝㻡㻠 㻝㻠㻢 㻝㻟㻌㼠㼛㻌㻞㻜 㻝㻟㻌㼠㼛㻌㻞㻜 㻝㻟㻌㼠㼛㻌㻞㻜 㻝㻟㻌㼠㼛㻌㻞㻜 Bottom face of ceiling ...

Page 18: ...㼞㼑 㻝㻜㻜㻜㻌㼛㼞㻌㼙㼛㼞㼑 㻝㻡㻌㼛㼞㻌㼙㼛㼞㼑 㻝㻡㻌㼛㼞㻌㼙㼛㼞㼑 An obstacle 㼛㼞㻌㼙㼛㼞㼑 㻟㻜㻜㻌㼛㼞㻌㼘㼑㼟㼟 Indoor unit Stand up Bottom face of ceiling standing size Stand up 450 Check port 㻞㻜㻜 Hanging bolt M10 or W3 8 Procured by locally 㻴㼍㼚㼓㼕㼚㼓㻌㼎㼛㼘㼠㻌㼜㼕㼠㼏㼔㻌㻡㻟㻡 㻴㼍㼚㼓㼕㼚㼓㻌㼎㼛㼘㼠㻌㼜㼕㼠㼏㼔㻌㻠㻥㻢㻌㼠㼛㻌㻡㻟㻤 㻢㻟㻢 㼛㼞㻌㼘㼑㼟㼟 㻤㻡㻜㻌㼛㼞㻌㼘㼑㼟㼟 㻡㻟 㻝㻥㻟 㻝㻡㻠 㻝㻠㻢 㻝㻟㻌㼠㼛㻌㻞㻜 㻝㻟㻌㼠㼛㻌㻞㻜 㻝㻟㻌㼠㼛㻌㻞㻜 㻝㻟㻌㼠㼛㻌㻞㻜 Bottom face of ceiling 㻠㻜㻜㻌㼛㼞㻌㼙㼛㼞㼑 Note IF there is no ceiling board th...

Page 19: ...nterface MCC 1440 CN40 BLU 1 1 Model 5 1 2 4 1 CN51 2 Connection 5 Earth 1 Serial signal 2 3 screw Power supply Earth 1 L2 N L3 Serial signal 2 3 380V 3N 60Hz 380 415V 3N 50Hz screw N L Power supply 220V 60Hz 220 240V 50Hz L1 3 TB01 1 2 Earth screw RED Indoor unit BLK WHT Uh U4 U3 Uh P C Board Connector Terminal Terminal Block Protection Ground Field Wiring Accessory Parts Name Connector Fuse Fan ...

Page 20: ...motor Louver motor Float switch Drain pump motor TA sensor TC sensor TCJ sensor ICF 340D60 1 MSBPC20F04 FS 0218 102 MDP 1401 Lead wire length 818 mm Vinyl tube DIA 6 size lead wire length 500 mm Vinyl tube Black DIA 6 size lead wire length 400 mm Vinyl tube Red ...

Page 21: ... unit HM40 2 HM56 2 Branch pipe RBC TWP30E2 RBC TWP30E2 A B C D 6 4 12 7 9 5 15 9 6 4 12 7 9 5 15 9 Unit mm 4 SYSTEMATIC REFRIGERATING CYCLE DIAGRAM 4 1 Indoor Unit Single type Combination of 1 indoor unit and 1 outdoor unit Dimension table Twin type Combination of 2 indoor units and 1 outdoor unit Indoor unit Liquid side outer diameter A Gas side outer diameter B Distributor with strainer Heating...

Page 22: ...ensor TC sensor Branch pipe Branch pipe To outdoor unit To outdoor unit Liquid side outer diameter C Gas side outer diameter D TC sensor TC sensor Liquid side outer diameter A Liquid side outer diameter A Liquid side outer diameter A Gas side outer diameter B Gas side outer diameter B Gas side outer diameter B Indoor unit B Indoor unit C Dimension table Indoor unit Branch pipe A B C D HM56 3 RBC T...

Page 23: ...anch pipe 1 Branch pipe 1 Branch pipe 2 Branch pipe 2 Gas side outer diameter D To outdoor unit To outdoor unit Liquid side outer diameter C Gas side outer diameter D Liquid side outer diameter E Gas side outer diameter F Liquid side outer diameter A Liquid side outer diameter A Liquid side outer diameter A Liquid side outer diameter C Liquid side outer diameter A Gas side outer diameter B Gas sid...

Page 24: ...he header unit Same as left 2 3 Follower 1 A B A B Same as left 2 2 Follower 1 A B DC5V Indoor unit 1 Header 1 Indoor control P C board MCC 1643 Louver motor Drain pump Indoor fan motor CPU Driver DC12V DC5V DC20V Outside output Remote controller communication circuit Display LCD Function setup Key switch CPU Display LED Remote controller communication circuit Power circuit Power circuit Start Ala...

Page 25: ...t Same as left 2 3 Follower 1 A B Same as left 2 2 Follower 1 A B Indoor unit 1 Header 1 Indoor control P C board MCC 1643 Louver motor Drain pump Indoor fan motor Driver DC12V DC5V DC20V A B Remote controller communication circuit Power circuit DC280V Fan motor control circuit TCC LINK communication circuit AC synchronous signal input circuit Outdoor unit 3 2 1 Uh U3 Uh U4 CPU EEPROM TA sensor TC...

Page 26: ...ing the wired remote controller as the header remote controller Same as left 2 3 Follower 1 A B A B A B Same as left 2 2 Follower 1 A B DC5V Indoor control P C board MCC 1643 Louver motor Drain pump Indoor fan motor Driver DC12V DC5V DC20V Remote controller communication circuit Display LCD Function setup Key switch CPU Display LED Power circuit Remote controller communication circuit Power circui...

Page 27: ...d Remote controller command STOP FAN COOL DRY HEAT AUTO Control outline Air conditioner stops Fan operation Cooling operation Dry operation Heating operation COOL HEAT operation mode is automatically selected by TA Ts and TO for operation The operation is performed as shown in the following figure according to TA value at the first time only In the range of Ts α 1 TA Ts α 1 Cooling thermostat OFF ...

Page 28: ...m temperature value are calculated to obtain the correction value of the frequency command and then the present frequency command is corrected Ts n TA n Room temp difference n Counts of detection TA n TA n 1 Varied room temp value n 1 Counts of detection of 1 minute before 4 Dry operation The frequency correction control is same as those of the cooling operation However the maximum frequency is li...

Page 29: ...eration has started select a downward slope for the fan speed that is the high position If the temperature is just on the difference boundary the fan speed does not change Mode in the parentheses indicates one in automatic cooling operation HEAT Value in the parentheses indicates one when thermostat of the remote controller works Value without parentheses indicates one when thermostat of the body ...

Page 30: ...ode for 1 minute after TC entered in E zone of cool air discharge preventive control Item 7 6 In automatic cooling heating operation the fan speed of HH is set larger than that in the standard cooling heating operation However the fan speed is restricted in the automatic heating operation as shown in the following figure Remarks Selection of high ceiling type CODE No 5d or selection of high ceilin...

Page 31: ... TC sensor or TCJ sensor When J zone is detected for 6 minutes Following figure the commanded frequency is decreased from the real operation frequency After then the commanded frequency changes every 30 seconds while operation is performed in J zone In K zone time counting is interrupted and the operation is held When I zone is detected the timer is cleared and the operation returns to the normal ...

Page 32: ...in parentheses of A and B 1 In cooling operation including Dry operation the drain pump is usually operated 2 If the float switch works while drain pump drives the compressor stops the drain pump continues the operation and a check code is output 3 If the float s 4 The drain pump doesn t stop immediately to decrease the drain water in the drain pan when the cooling operation including Dry operatio...

Page 33: ...charge position when PRE HEAT Heating ready is displayed heating thermo is off Individual air direction setup In the case of RBC AMTU3 For RBC AMSU5 remote controller refer to its owner s manual Pushing UNIT LOUVER Louver select button enables every discharge port to set up the air direction The louver numbers that are displayed on the display part correspond to those in the following figure In ca...

Page 34: ...ation at the same time In case of selecting the Swing mode Dual swing or Cycle swing the following numerals is displayed at the center of the remote controller screen for approx 3 seconds when SWING FIX button was pushed to select SWING No display for the standard swing In the case of RBC AMTU3 Remarks Carry out setting operation during stop of the unit otherwise the unit stops operation Dual swin...

Page 35: ...conform to JEMA regulations 4 This control outputs Operation OFF STOP signal to HA output terminal while self cleaning works However selection of Operation ON Operating signal is possible by changing 0000 At shipment of Item code DN CC to 0001 In this case if HA is input during self clean operation during operation of the air conditioner the self clean operation is not performed Unit stops Refer t...

Page 36: ...ote control RBC AMSU5 is required When AUTO mode is selected Energy saving operation is performed 2 When using the remote controller RBC AMSU5 Energy saving operation can be performed even in cooling mode and heating mode 3 The setup temperature is shifted corrected in the range not to lose the comfort ability according to input values of various sensors 4 Data Input value room temp TA Outside tem...

Page 37: ... minutes to reduce drain water in drain pan Turn on SAVE button on the remote controller 2 During operation of save operation SAVE lights on the wired remote controller 3 During power save operation the current release control is performed with the restriction ratio set in EEPROM on the outdoor unit 4 The restriction ratio can be set by keeping SAVE button pushed for 4 seconds or more on the remot...

Page 38: ...nd air volume are changeable during this operation 9 The indoor fan stops to protect the compressor for 2 minutes after start of heating operation Thermostat ON by this function Remarks In a g 23 Occupancy sensor 1 During the Occupancy sensor operation DN code B5 0001 and B6 0002 to 0005 when there is no people in the Occupancy sensor range it is automatically switched to the operation for the abs...

Page 39: ...cooling operations and dry mode can be set 2 Change the fan speed by operating CODE No DN 9A 3 Select Remote controller setting if changing fan speed is not desired during thermostat OFF When selecting 0002 OFF make sure to use the Remote controller sensor or Remote sensor unit so that the room temperature can be detected properly 27 Draft prevention control 1 This function prevents cold air from ...

Page 40: ...tation control the DN code 1C1 for the header unit must be set to 0001 valid 4 The intervals to switch the operations can be set by setting the CODE No DN 1C2 in increments of days maximum 28 days 5 Start the other operation 30 minutes before the end of one operation Rotation lap time can be set in increments of 10 minutes by setting the CODE No DN 1C3 maximum 70 minutes 6 A check code will show o...

Page 41: ...itor function within the wired remote controller Refer to page 82 or the manual for the remote controller for operation method of Monitor function 30 Defrost shift 1 This control is to change the starting time of defrosting operations to avoid temperature drop when multiple air conditioners that belong to refrigerant systems are installed in the same space and the defrosting operations thereof sta...

Page 42: ...period of normal cooling operations or heating operations the frequency of the outdoor unit compressor which is operating under the highest load will be limited This function is invalid with auto cooling operations dry operations and air fan operations 4 The frequency is limited 10 at the maximum in accordance with the temperature difference of TA indoor temperature and Ts set temperature Δt TA Ts...

Page 43: ... by combining a device that uses the outdoor temperature 2 This function is valid by setting the CODE No DN 1C8 from the wired remote controller and when the outdoor temperature satisfies certain conditions the output for the CN32 connector on the indoor P C board will turn ON Use processed air when taking in fresh air Watch for condensation of devices when taking in fresh air at low temperatures ...

Page 44: ...AH Temp set air high Ts a TAL Temp set air low TAH b 4 The output can be turned on by the outdoor temperature when CODE No DN C7 is set to 0001 1ºC to 0010 10ºC using the wired remote controller Control Outline Flip Mode 1 If the difference between the room temperature and the set temperature is large while using secondary heating run the air conditioner 2 This function is valid when the CODE No D...

Page 45: ... CN60 on indoor P C board for output Indoor control P C board Relay DC12V procured locally Corresponds to the relay up to one that the rated current of the operation coil is approx 75mA Connect to secondary heating unit Note Determine the cable length between the indoor control P C board and the relay within 2m CN60 Option output 6P WHI 1 2 3 4 5 6 2 If there is no CN60 on the P C board MCC 1643 m...

Page 46: ...put CN32 Louver CN510 Wireless remote control or Occupancy sensor CN214 White HA CN61 External input output UART CN521 DISP CN72 CHK CN71 Drain pump CN504 TA sensor CN104 Remote controller CN41 Optional power supply CN309 EEPROM IC503 1 1 model Connection Interface CN50 Float SW CN34 TC sensor CN101 TCJ sensor CN102 ...

Page 47: ...ontroller operation stop is performed by input 4 Operation output Open collector Operation ON Answer back of HA 5 DC12V 6 Warning output Open collector Warning output ON CHK Operation check CN71 1 This check is used to check indoor operation Performs operation of indoor fan H Louver horizontal and Drain pump ON without communication with outdoor and remote controller 2 DISP Exhibition mode CN72 1 ...

Page 48: ...ase function in heating Is the remote controller set in cooling under the low outside air temperature Is the air conditioner being operated in defrost operation 4 ON OFF operation cannot be performed from remote controller Is the air conditioner being operated by the central control system Is an automatic address being set up When the power is turned on at the first time or when indoor unit addres...

Page 49: ... air conditioner being controlled by high temperature release function in heating Is the remote controller set in cooling under the low outside air temperature Is the air conditioner being operated in defrost operation 4 ON OFF operation cannot be performed from remote controller Is the air conditioner in forced operation Is it being operated by the central control system Is an automatic address b...

Page 50: ...eiving trouble Receiving unit Miswiring or wire connection trouble Sending trouble Communication stop between receiving unit and indoor unit Duplicated indoor unit No Setup trouble Duplicated header units of remote controller Communication trouble between Application control kit and indoor unit P C board Wire connection trouble between indoor units Indoor power OFF Communication stop between indoo...

Page 51: ...t 1 Temp sensor TS trouble Temp sensor TH trouble Temp Sensor miswiring TE TS Indoor EEPROM trouble Outdoor EEPROM trouble Compressor break do F30 Occupancy sensor trouble wn Compressor lock Current detection circuit trouble Outdoor compressor system trouble 1 Case thermostat worked Outdoor unit low pressure system trouble Duplicated header indoor units There is indoor unit of group connection AUT...

Page 52: ...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 53: ...f indoor unit is unset Duplicated setting of central control system address Abnormal stop by outside trouble CN80 TB2 IN1 input An trouble of indoor AC fan was detected Fan motor thermal relay worked Float switch worked Indoor DC fan trouble Over current Lock etc was detected In heating operation a trouble was detected by temp down of indoor heat exchanger sensor Follower unit in group cannot oper...

Page 54: ...yed when trouble is detected Displayed when trouble is detected Displayed when trouble is detected Displayed when trouble is detected Displayed when trouble is detected Displayed when trouble is detected Displayed when trouble is detected Displayed when trouble is detected Displayed when trouble is detected Judgment and measures 1 Check cables of remote controller and communication adapters Remote...

Page 55: ...p Automatic reset If central controller exists operation continues Stop Automatic reset If central controller exists operation continues Stop Follower unit continues operation Stop Automatic reset Continues By remote controller Continuation Stop According to each case Condition Judgment and measures Power supply trouble of remote controller Indoor EEPROM trouble 1 Check remote controller inter uni...

Page 56: ...ader unit Is the connector on the harness or the harness from terminal block of indoor unit connected correctly Check power connection of indoor unit Turn on power again Replace indoor P C board MCC 1643 Correct as a header unit and a follower unit Replace remote controller P C board Correct a header unit a follower unit Remote controller address connector Correct connection of connector Check cir...

Page 57: ... voltage between 2 and 3 of terminal blocks 1 2 3 vary Replace outdoor P C board Replace indoor P C board Replace indoor P C board Correct wiring of connector and terminal blocks Correct wiring and inter unit cables Check CODE No 14 YES YES YES YES YES NO NO NO NO NO MCC 1643 As shown in the following figure carry out measurement within 20 seconds after the power was turned on Black S5277G White T...

Page 58: ...nication cut Does Red LED LD1 on the Application control kit light up Red LED LD1 on the Application control kit repeatedly lights up and flashes on and off Red LED LD1 of the Application control kit blinks NO NO Replace Application control kit TCB PCUC2E YES Check the operating status Repair of connector connection YES Replacement of the connector s lead wire Replace indoor P C board MCC 1643 Opt...

Page 59: ...Serial signal line Check power connection status of indoor unit Connect again Correct connection of connector Check circuit wiring Correct inter unit cable of remote controller NO YES YES YES NO YES YES NO NO NO YES NO E18 trouble E08 L03 L07 L08 trouble E08 Duplicated indoor unit No L03 There are 2 or more header units in a group control L07 There is 1 or more group address Individual in a group ...

Page 60: ...ol system addresses connected Is there check code on follower unit in master and sub remote controllers Are wiring connections to communication lines Uh U3 U4 normal Replace central controller including 1 1 model connection interface and indoor P C board MCC 1643 Correct wiring connection Correct central control system address Replace outside devices Replace indoor P C board MCC 1643 YES YES YES N...

Page 61: ...n Is connection of float switch connector Indoor control board CN34 normal Replace TA sensor Correct connection of connector Check the drain pipe etc Replace drain pump Check wiring Replace drain pump and indoor P C board MCC 1643 Correct connection of connector Replace indoor P C board MCC 1643 Check and correct wiring and wire circuit YES YES YES YES YES YES YES NO NO O N NO NO NO NO P10 trouble...

Page 62: ...Disconnect the connector CN210 to the indoor P C board Is the connector CN210 of indoor unit P C board connected correctly Does the fan turn smoothly when turned by hand Is each resistance value on the motor side of the fan motor connector CN210 of the indoor P C board correct Is F01 of the indoor P C board normal Is R04 or R05 of the indoor P C board normal Pin No 2 3 Color Blue Yellow White Blac...

Page 63: ... sensor resistance value normal Is connection of TC sensor connector CN101 on Indoor P C board correct Refer to TC Characteristics Replace TC sensor Replace indoor P C board MCC 1643 Correct connection of connector Are characteristics of TCJ sensor resistance value normal Is connection of TCJ sensor connector CN102 on Indoor P C board correct Refer to TCJ sensor Temperature Resistance value charac...

Page 64: ...214 normal Correct the connector connection Is DN code B5 setup By the wired remote controller change the enable DN code B5 from 0000 0001 Replace the indoor P C board MCC 1643 No Yes Is the Occupancy sensor unit normal Exchange the Occupancy sensor unit No Yes No Yes ...

Page 65: ...of A and B terminal blocks Correct communication line of remote controller 1 Is connection of connector normal Replace power supply transformer on 1 1 model connection interface MCC 1440 Can the other indoor units be normally controlled from the central controller Or is the operation status of indoor unit reflected 1 CN51 of 1 1 model connection interface TCC LINK adapter P C board MCC 1440 and CN...

Page 66: ... during operation of the air conditioner Replace the service P C board When EEPROM was not inserted when power supply turned on or when the EEPROM data read write operation is impossible at all the automatic address mode is repeated In this time C06 trouble is displayed on the central controller P31 trouble Follower indoor unit When the header unit of a group operation detected E03 L03 L07 or L08 ...

Page 67: ...ess remote controller at the first time after install RBC AXU31UM Is connection of lead wire between CN214 of indoor P C board and RBC AXU31UM correct Repair the connection Replace the RBC AXU31UM YES NO Does wireless remote controller operate Replace the indoor P C board MCC 1643 NO NO YES End YES ...

Page 68: ...TA TC TCJ TE TS TO sensors TD TL sensors Temperature C 0 10 20 25 30 40 50 60 70 80 90 100 Resistance value kΩ 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 1 623 1 709 1 082 1 146 1 213 0 7740 0 8237 0 8761 0 5634 0 6023 0 6434 Temperature C 0 10 20 25 ...

Page 69: ...erform the cooling cycle confirmation through the trial operation Replacement procedures CASE 1 Before replacement the indoor unit can be turned on and the setting data can be read out by wired remote control operation EEPROM data read out 1 Ø Replacement of P C board for Indoor unit servicing and power on 2 Ø Writing the read out EEPROM data 3 Ø Power reset for all indoor units connected to the r...

Page 70: ... in the table 1 example The Code No DN are ranged from 01 to FE The Code No DN may skip RBC AMTU3 Step 1 Push and button on the remote controller simultaneously for more than 4 seconds When the group operation control is performed the unit No displayed for the first time is the header unit No At this time the CODE No DN shows 10 Also the fan of the indoor unit selected starts its operation and the...

Page 71: ...mode starts and the manual resetting may be required again when the multiple units group operation including twin system Step3 After writing down all setting data push ON OFF button to return to the normal stop status It takes approx 1 min until the remote controller operation is available again CODE No required at least DN 10 11 12 13 14 E0 Contents Type Indoor unit capacity Line address Indoor u...

Page 72: ...MSU5 MENU V 4 seconds or more Code No DN 100 and later cannot be set so after setting the address DN 12 13 14 restart and proceed to 3 b Group operation including twin system Turn on the indoor unit s with its P C board replaced to the P C board for indoor unit servicing according to either methods 1 or 2 shown below 1 Turn on only the indoor unit with its P C board replaced Be sure to confirm the...

Page 73: ...tton to make Code No flash And set the Code No DN to10 2 Push the menu button to make SET DATA flash And select the type by pushing the or buttons For example Compact 4 way Cassette Type is set to 0014 Refer to table 1 3 Push OFF timer button The changed data is set 4 Change the Code No DN to 11 by pushing the or buttons 5 Select the capacity by pushing the or buttons For example 56 Type is set to...

Page 74: ...tes if the setting data is displayed 4 Change the CODE No DN to 11 by pushing buttons for the temperature setting 5 Select the capacity by pushing buttons for the timer setting For example 56 Type is set to 0009 Refer to table 2 6 Push button The setting completes if the setting data are displayed 7 Push button The setting completes if the setting data are displayed 8 Push the button to return to ...

Page 75: ...y Cassette Type Disable 30 40 56 0000 0003 0006 0009 RAV HM MUT CAUTION Model name RAV HM MUT For this model please make all the following settings EEPROM initial value on the P C board for indoor unit servicing For other CODE No refer to Function CODE No DN Code table on page 81 CODE No DN E0 Setting data 0004 Description Global model ...

Page 76: ...button 3 Push menu button to select the operation mode Select Cool or Heat with setting button Do not run the air conditioner in a mode other than Cool or Heat The temperature setting function does not work during test run The check code is displayed as usual 4 After the test run push OFF timer button to stop a test run TEST disappears on the display and the air conditioner enters the normal stop ...

Page 77: ...n the case of subsequent power on it takes approx 1 minute until the remote controller becomes available Execute a test run after the predetermined time has passed 2 Push ON OFF button on the remote controller select Cool or Heat with MODE button and then select HIGH with FAN button 3 4 5 Cooling test run Heating test run Set the temperature to 17 C with the temp setup buttons Set the temperature ...

Page 78: ...It goes on Goes on by operation of the main microcomputer at the same time when the power supply is turned on It flashes with 1 second interval every 0 5 second When there is no EEPROM or writing in operation fails It flashes with 10 seconds interval every 5 second During DISP mode It flashes with 2 seconds interval every 1 second While setting of function select EEPROM 2 D403 Red It goes on when ...

Page 79: ...ed for which to change settings 3 6 4 5 1 7 2 4 5 Indoor unit No 4 Push the menu button to make Code No flash Change Code No with setting button 5 Push the menu button to make Set data flash Change Set data with setting button 6 Push OFF timer button to complete the set up To change other settings of the selected indoor unit repeat from Procedure 4 7 When all the settings have been completed push ...

Page 80: ...utton to select the CODE No DN code of the desired function 4 Use the button to select the desired SET DATA associated with the selected function 5 Push the button The display changes from flashing to steady To change the selected indoor unit go back to step 2 To change the selected function go back to step 3 6 When the button is pushed the system returns to normal off state NOTE For details on ho...

Page 81: ...ump 0001 Cooling only No display of AUTO HEAT 0000 Heat pump 0d Existence of AUTO mode 0000 Provided 0001 Not provided Automatic selection from connected outdoor unit 0000 Provided 04 Specific indoor unit priority 0000 No priority 0001 Priority 0000 No priority 03 Central control address 0001 No 1 unit 0001 No 1 unit 00Un Unfixed When using U series remote controller 0099 Unfixed Other than U seri...

Page 82: ...0 C db Secondary heating a Temp TAH TAL 0001 0 5 C to 0010 5 0 C 0006 3 0 C d1 8 C heating Frost protective operation 0000 Unavailable 0001 Available 0000 Unavailable dc Secondary heating a Temp Normal mode Ts TAH Flip mode TAL Ts 0000 Unavailable 0001 1 C to 0010 10 C 0000 Unavailable C5 Secondary heating mode 0000 Normal mode 0001 Flip mode 0000 Normal mode Occupancy sensor Wireless remote contr...

Page 83: ...isplay order U series TU2C LINK 0128 00Un 0001 TCC LINK 0064 00Un 0001 Other than U series TCC LINK 0064 0099 0001 For Line address DN 12 Remote controller Communication type Display order U series TU2C LINK 0128 00Un 0001 TCC LINK 0030 00Un 0001 Other than U series TCC LINK 0030 0099 0001 For Group address DN 14 Remote controller Communication type Display order U series 0002 00Un 0000 TU2C LINK ...

Page 84: ...Procured locally Operation 1 The operation contents can be changed by Last push priority 2 Use the timer function on the Header remote controller 2 remote controller control Controlled by 2 remote controllers This control is to operate 1 or multiple indoor units are operated by 2 remote controllers Max 2 remote controllers are connectable When connected 2 remote controllers operate an indoor unit ...

Page 85: ...l receiving unit to operate the air conditioner 3 Point the wireless remote controller at the indoor unit 4 Push and hold CHK button on the wireless remote controller by the tip of the pencil 00 will be shown on the display 5 Push the MODE button during pushing CHK B will be shown on the display and 00 will be disappear and the air conditioner will turn OFF The wireless remote controller B is memo...

Page 86: ...rm the selected indoor unit 4 Every pushing buttons CODE No of the item is changed successively 5 After you have finished checking push the ON OFF button to return to normal mode 1 2 4 2 4 5 3 1 RBC AMTU3 1 Push buttons simultaneously for 4 seconds or more to call up the service monitor mode The service monitor goes on and temperature of the CODE No 00 is firstly displayed 2 Push the temperature s...

Page 87: ...ure TA C 03 Indoor heat exchanger Coil temperature TCJ C 04 Indoor heat exchanger Coil temperature TC C B9 Communication protocol 0000 TCC LINK 0001 TU2C LINK 07 Indoor fan revolution frequency rpm F2 Indoor fan calculated operation time 100h F3 Filter sign time 1h F8 C Indoor unit discharge air temperature TF 1 E5 Secondary heating output Unavailable 0000 OFF 0001 ON E6 Free cooling output Unavai...

Page 88: ...tton for over 10 seconds and the indicators appear as an image indicating the troubleshooting history mode has been entered If Service check is displayed the mode enters in the troubleshooting history mode 01 Order of troubleshooting history appears in the temperature indicator The OFF timer indicator alternately shows the check code and the indoor Unit No in which the problem occurred 2 Each time...

Page 89: ...of an outdoor unit is one of the group controls The indoor unit connected with outdoor unit Individual Header of twin controls room temperature according to setting on the remote controller System example 1 Display range on remote controller The setup range Operation mode Fan speed Set temperature of the indoor unit which was set to the header unit is reflected on the remote controller 2 Address s...

Page 90: ...unication protocol TU2C Link TCC Link Remote controller operation is available Approx 50 seconds after power ON Regular communication between indoor units Every 30 seconds Header Follower Regular communication of the identical piping system Every 30 seconds Twin header follower When the above status changes immediately communicates Repetition The unit without power feed waits entirely Waiting stat...

Page 91: ...B U3 U4 1 1 model connection interface This product sold separately Caution 1 Remote controller Indoor outdoor inter unit wire AC230V serial Central control system wiring Header unit Header unit Follower unit Follower unit Follower unit Wiring for No 1 and 2 only Caution 2 Remote controller Remote controller Remote controller Remote controller wiring e l p i r t f o e l p m a x E n o i t a r e p o...

Page 92: ...erial Central control system wiring Header unit Header unit Follower unit Follower unit Follower unit Wiring for No 1 and 2 only Remote controller Remote controller Remote controller Remote controller Remote controller wiring e l p i r t f o e l p m a x E n o i t a r e p o e l p i r T n i w T Group operation OFF at shipment from factory OFF at shipment from factory Line address SW01 Bit 1 SW01 Bit...

Page 93: ...nection interface it is necessary to set up the central control address number The central control address number is displayed as the line No of the central control remote controller How to set up from indoor unit side by remote controller Procedure Perform setup while the unit stops Terminator SW01 52 85 Set the following DN with the wired remote controller CODE No DN Irem Description Refer to 8 ...

Page 94: ... indoor unit 1 1 tentatively with communication wiring END Turn on power of outdoor unit Set to all indoor units one by one Do you arbitrarily set the indoor unit address Are there multiple units of twin connections Do you change setting after automatic setting at the first time Is refrigerant line 1 line Is group control performed Setup of automatic address finishes within 4 to 5 minutes After co...

Page 95: ...nit communicates with the indoor unit sub which serial communicates with the Representative unit outdoor units and sends receives signal Command from compressor to from the outdoor Header Twin 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 of Twin Triple Double twin Sub unit...

Page 96: ...mation to the sub unit Sub unit The sub unit receives the indoor unit data from the master With identical line address indoor outdoor serial and then performs the thermostat operation synchronized with the master unit The sub unit sends own thermostat ON OFF demand to the master unit Example No 1 1 master unit sends receives signal to from No 1 2 and No 1 3 sub units It is not influenced by the li...

Page 97: ... 1 3 Follower Master 1 1 Follower Sub 1 1 Individual Header Master 1 2 Header Master 1 1 1 2 1 1 Follower Sub 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 nec...

Page 98: ...t an indoor unit per a remote controller Turn on power supply Indoor unit address Group address CODE No DN Item 13 14 Description 0001 No 1 to 0128 No 128 TU2C Link 0001 No 1 to 0030 No 30 TCC Link 12 Line address 0001 No 1 to 0128 No 128 TU2C Link 0001 No 1 to 0030 No 30 TCC Link 0000 Individual 0001 Header unit 0002 Follower unit RBC ASCU1 1 Push and hold the menu buttons at same time for more t...

Page 99: ...e menu button until the CODE No flashes And using the or buttons specify the CODE No 14 10 Push the menu button until the SET DATA flashes And using the or buttons set a group address If the indoor unit is individual set the address to 0000 header unit 0001 follower unit 0002 Individual 0000 Header unit 0001 Follower unit 0002 11 Push the OFF timer button to confirm the SET DATA 12 When all the se...

Page 100: ...Failure 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 ...

Page 101: ...the ceiling panel while the air intake grille is opened 2 Attachment 1 Hook the hinge of the air intake grille to the main panel and then attach the fall preventive strap 2 Close the air intake grille and then slide the hook 3 Slide the grille fixing bracket to fix it with the screws M 4 8 1pc d Electric parts cover 1 Detachment 1 Loosen the fixing screws 2 places of the electric parts cover M 4 8...

Page 102: ... the louver motor connector of the ceiling panel so that it directs to the electric parts side and then hook the tentative hanging hook at the center part of the ceiling panel main body to the bell mouth 2 Connect the louver motor connectors at the ceiling panel side and the indoor unit side 3 Lift up the panel corner part and put out the screw head of the panel fixed implement Slide the panel fix...

Page 103: ...ps 3 Following to the work in d 2 attach the electric parts covers as original h Turbo fan 1 Detachment 1 Remove the air intake grille Refer to 1 of c 2 Loosen the fix screws 2 positions of the bell mouth rotate the bell mouth and then take off it M 4 10 2 pcs 3 Loosen the flange nut M8 at the center part of the turbo fan and then take off Counter clockwise Supporting with hands take off the turbo...

Page 104: ...drain pan fixing bracket M 4 8 4 pcs 7 Using the both hands hold the water spilling port part of the drain pan and then slowly pull out the foaming parts firstly As there is remained water in the drain pan clear it carefully 2 Attachment 1 Arrange direction of the drain pan directly to the foaming parts and insert it Pass the fan motor lead wire through the inner side of the drain pan 2 Attach the...

Page 105: ... drain pump wiring through side plate and clamp and then connect the connector to the control P C board 4 Following to work in i 2 attach the drain pan panel and electrical parts covers as original k Float switch 1 Detachment 1 Remove the drain pan Refer to i 1 2 Remove the float switch connector CN34 3P Red connected to the control P C board and then take off the lead wires from the clamp 3 Remov...

Page 106: ...der and then tighten to fix them Tightening toque 4 9 0 5N m 2 Pass the lead wire through the motor lead wire fixing plate removed in 1 3 and then fix it with shoulder screw 3 Perform wiring of the motor lead wires as original connect the connector to the control P C board and then attach the wiring fixing plate and the wiring cover 4 Following to works in h 2 and d 2 attach the turbo fan and the ...

Page 107: ...ve the screw of the TA sensor cover M 4 10 1pc 4 Remove TA sensor from the TA sensor fixed implement 2 Attachment 1 Fix TA sensor to TA sensor fixing implement and fix the TA sensor cover with screw M 4 10 1 pcs M 4 8 1 pcs 2 Perform wiring of TA sensor as original Adjust position of the tube so that the tube of TA sensor will be included in the cover Fixing screw TA sensor cover TA sensor fixing ...

Page 108: ...he heat exchanger so that it will not be fallen down Take note that you will not get hurt by touching to Aluminum fin Be sure to put on the protective gloves and the safety working clothing 2 Attachment 1 Attach the heat exchanger as original with the separate plate and the fixing plate 2 Slide the piping cover to the groove fix it to the side plate and then use the screws M 4 8 3 pcs 3 Perform wi...

Page 109: ... RAV HM301MUT E HM401MUT E HM561MUT E TR 202 203 209 210 235 236 222 226 228 201 243 205 233 221 231 224 227 234 204 207 206 RAV HM301MUT E RAV HM401MUT E HM561MUT E TR 230 215 219 217 220 212 213 214 218 216 220 212 213 230 241 TOSHIBA 244 245 ...

Page 110: ...ARTITION MOTOR FAN ICF 340D60 1N CAP NUT BAND FIX EVAPORATOR REFRIGERATION CYCLE ASSY REFRIGERATION CYCLE ASSY NUT FLARE 6 35 SOCKET 6 35 NUT FLARE 12 7 NUT FLARE 9 52 SOCKET 12 7 SOCKET 9 52 BONNET 12 7 BONNET 9 52 BONNET 6 35 HOSE DRAIN BAND HOSE HOLDER LEAD FAN MOTOR HOSE DRAIN COVER PIPE NUT HOLDER SENSOR TS BAND HOSE RUBBER CUSHION COVER E BOX PUMP DRAIN SWITCH FLOAT REMOTE CONTROLLER WIRELES...

Page 111: ...P 408 CN67 CN22 SW501 㤥 CLAMP DOWN 407 Location No Part No 401 402 403 404 405 406 407 408 43050425 43160565 43160560 4316W053 43459017 43F50426 43163057 43163058 SENSOR ASSY SERVICE TC F6 TERMINAL BLOCK 3P 20A TERMINAL 2P PC BOARD ASSY MCC 1643 PC BOARD ASSY TCB PCUC1E SENSOR SERVICE TA CLAMP DOWN CLAMP UP 2 1 1 1 1 1 1 1 Description Q ty Set ...

Page 112: ...3109441 43180361 4342D001 43107296 43107297 43122166 4310A142 4310A143 43107298 43107299 43107300 43107301 43107302 43107303 43160664 4310A144 43419022 43107304 43107305 GRILLE AIR INLET AIR FILTER MOTOR LOUVER MSBPC20F04 OUTLET AIR FORM OUTLET AIR FORM LOUVER ASSY COVER PANEL ASSY COVER PANEL ASSY PLATE FIX PANEL A PLATE FIX PANEL B HOOK CAP AXIS FIX MOTOR ASSY FIX MOTOR ASSY LEAD MOTOR PANEL HIN...

Page 113: ...357 Location No Part No Description Q ty Set 351 352 353 354 355 356 357 4316V616 43162103 43108036 43160665 43108041 43166041 43183036 P C BOARD ASSY REMOTE RECIEVER COVER WRS COVER PANEL WRS LEAD COVER WIRELESS REMOTE CONTROLLER WIRELESS HOLDER REMOTE CONTROLLER 1 1 1 1 1 1 1 ...

Page 114: ...or TCB SIR41UM E 362 364 365 361 363 Location No Q ty Set TCB SIR41UM E Part No Description 361 362 363 364 365 43162088 43108037 43160666 43408062 43469067 COVER WRS COVER PANEL WRS LEAD COVER SENSOR THERMOSTAT 1 1 1 1 1 ...

Page 115: ...72 34 Horikawa cho Saiwai ku Kawasaki shi Kanagawa 212 8585 JAPAN Copyright 2022 TOSHIBA CARRIER CORPORATION ALL Rights Reserved ...

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