Toshiba MMW-AP0271LQ-E Service Manual Download

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– 42 –

Check code

Typical fault site

Description of error

P07

—

Heat sink overheating error

Temperature sensor built into IGBT (TH) detects overheating.

A01

Flow switch protective operation

A01

—

• Check the pump.
• Check the strainer.
• Check the flow switch.
(Type, directtion of attachment and point of contact)

P20

—

High-pressure protection
activation

High-pressure (Pd) sensor detected a value over the criteria.

P15

01: TS condition
02: TD condition

Gas leak detection

Outdoor suction temperature sensor (TS1) detects sustained and
repeated high temperatures that exceed standard value.

P17

—

Outdoor discharge (TD2)
temperature error

Outdoor discharge temperature sensor (TD2) detects abnormally
high temperature.

P18

—

Outdoor discharge (TD3)
temperature error

Outdoor discharge temperature sensor (TD3) detects abnormally
high temperature.

P19

P19 Outdoor unit No. detected

4-way valve reversing error

Abnormality in refrigerating cycle is detected during heating
operation.

P20

—

Activation of high-pressure
protection

High pressure (Pd) sensor detects high pressure that exceeds
standard value.

P22

SMMS-i (Series 4)
0..: IGBT circuit
1..: Position detection circuit error
3..: Motor lockup error
4..: Motor current detection
C..: TH sensor error
D..: TH sensor error
E..: Inverter DC voltage error
(outdoor fan)
Note: Although letters 0 to F
appear at locations indicated
by "

∗

", please ignore them.

Outdoor fan IPDU error

Outdoor fan IPDU detects error.

P26

01: Compressor 1
02: Compressor 2
03: Compressor 3

Activation of G-Tr (IGBT) short-
circuit protection

Short-circuit protection for compressor motor driver circuit
components is activated (momentary overcurrent).

F13

01: Compressor 1
02: Compressor 2
03: Compressor 3

Error in temperature sensor built
into indoor IGBT (TH)

Temperature sensor built into indoor IGBT (TH) has been open /
short-circuited.

(P10)

P10 Indoor unit No. detected

Indoor unit overflow

Indoor unit has been shutdown in one refrigerant line due to
detection of overflow (detected by indoor unit).

P13

—

Outdoor liquid backflow detection
error

State of refrigerant cycle circuit indicates liquid backflow operation.

P29

01: Compressor 1
02: Compressor 2
03: Compressor 3

Compressor position detection
circuit error

Compressor motor position detection error is detected.

H01

01: Compressor 1
02: Compressor 2
03: Compressor 3

Compressor breakdown

Inverter current (Idc) detection circuit detects overcurrent.

H02

01: Compressor 1
02: Compressor 2
03: Compressor 3

Compressor error (lockup)

Compressor lockup is detected

H03

01: Compressor 1
02: Compressor 2
03: Compressor 3

Current detection circuit error

Abnormal current is detected while inverter compressor is turned
off.

P04

01: Compressor 1
02: Compressor 2
03: Compressor 3

Activation of high-pressure SW

High-pressure SW is activated.

P07

01: Compressor 1
02: Compressor 2
03: Compressor 3

Heat sink overheating error

Temperature sensor built into IGBT (TH) detects overheating.

P05

00: Open phase detected

Open phase / power failure

01: Compressor 1 ALT
02: Compressor 2
03: Compressor 3

Inverter DC voltage (Vdc) error
MG-CTT error

Open phase is detected when power is turned on.
Inverter DC voltage is too high (overvoltage) or too
low (undervoltage).

TCC-LINK

central control

or main remote

controller

display

Outdoor 7-segment display

Sub-code

MG-CTT: Magnet contactor

Indoor unit (including Hot Water Module)

(L30)

L30 Detected indoor unit No.

Indoor external error input
(interlock)

Indoor unit has been shut down for external error input in one
refrigerant line (detected by indoor unit).

P03

—

Outdoor discharge (TD1)
temperature error

Outdoor discharge temperature sensor (TD1) has detected
abnormally high temperature.

P04

P0301: Compressor 1
02: Compressor 2
03: Compressor 3

High-pressure SW
activation

High-pressure SW was activated.

Summary of Contents for MMW-AP0271LQ-E

Page 1: ...AIR CONDITIONER MULTI TYPE SERVICE MANUAL PRINTED IN JAPAN May 2014 TOMO FILE No A10 1412 Hot Water Module Model name MMW AP0271LQ E MMW AP0561LQ E MMW AP0271LQ TR MMW AP0561LQ TR ...

Page 2: ... water module function DN code 22 7 5 Applied control of indoor unit including Hot Water Module 23 7 6 Test operation check 35 8 TROUBLESHOOTING 37 8 1 Overview 37 8 2 Troubleshooting method 38 8 3 Troubleshooting based on information displayed on remote controller 44 8 4 Check codes displayed on remote controller and SMMS outdoor unit 7 segment display on I F board and locations to be checked 45 ...

Page 3: ...lated to this work The qualified installer who is allowed to work at heights has been trained in matters relating to working at heights with the air conditioners including the hot water modules 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 ...

Page 4: ...tems thoroughly in the following contents Indications Illustrated marks and keep them Explanation of indications Indication Explanation DANGER Indicates contents assumed that an imminent danger causing a death or serious injury of the repair engineers and the third parties when an incorrect work has been executed WARNING Indicates possibilities assumed that a danger causing a death or serious inju...

Page 5: ... water module Warning indication Description WARNING ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing WARNING ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing ...

Page 6: ...il qualified service person arrives Continuing to use the hot water module in the trouble status may cause mechanical problems to escalate or result in electric shocks or other failure When you access inside of the electrical parts box cover to repair electric parts wait for about five minutes after turning off the breaker Do not start repairing immediately Otherwise you may get electric shock by ...

Page 7: ...unit You may injure yourself if you do so If the plate heat exchanger must be touched for some reason first put on protective gloves and safety work clothing and then proceed Do not climb onto or place objects on top of the outdoor unit You may fall or the objects may fall off of the outdoor unit and result in injury When transporting the hot water module wear shoes with additional protective toe ...

Page 8: ...rigerating cycle resulted in cause of injury due to breakage After installation work check the refrigerant gas does not leak If the refrigerant gas leaks in the room poisonous gas generates when gas touches to fire such as fan heater stove or cocking stove though the refrigerant gas itself is innocuous Never recover the refrigerant into the outdoor unit When the equipment is moved or repaired be s...

Page 9: ...d other parts will be very hot to the touch In addition before proceeding with the repair work wear the kind of insulated heat resistant gloves designed to protect electricians Take care not to get burned by compressor pipes or other parts when checking the cooling cycle while running the unit as they get heated while running Be sure to put on gloves providing protection for electric shock and hea...

Page 10: ...module It is dangerous for the hot water module to be relocated by an unqualified individual since a fire electric shocks injury water leakage noise and or vibration may result When carrying out the pump down work shut down the compressor before disconnecting the refrigerant pipe Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating will cause air e...

Page 11: ...mples include Office use where there is a requirement for DHW such as small canteen or Rest Apartment block where there is a requirement for DHW such as kitchen Shower and Hotel use where there is an auxiliary requirement for DHW for the purpose of cleaning and sanitary operations Small Businesses for example coffee shops hairdressers etc where there is a requirement for a single heating solution ...

Page 12: ...Standard Min Amibient Water inlet side Water outlet side Water pipe Refrigerat pipe Drain pipe 27 kW A W mm mm mm mm mm mm kg kg Mpa Mpa L min L min kPa CDB CWB Allowable dew point RH CWB Outdoor at heating C C mm mm dB A Indoor MMW AP0271LQ E 8 0 0 08 14 17 8 23 22 9 19 5 40 5 25 Model Heating capacity 1 Electical characteristics Appearance Dimention Weight Design Pressure Heat exchanger Heat ins...

Page 13: ...mp sensor Fuse Connector Parts Name P301 BLK CN33 GRN DISP CHK CN32 WHI FAN DRIVE COM DC12V COM S1 Defrosting output COM S1 S2 Line Heater output COM S2 S3 S4 Heating Thermostat ON output COM S4 S5 Pump output COM S5 Output signal function Control P C Board for Indoor Unit MCC 1403 CN309 YEL TB02 A B A B CN41 BLU 3 BLK 1 CN66 WHI CN40 BLU 1 2 2 1 3 1 2 CN50 WHI 1 3 5 4 CN74 WHI CN02 YEL Sub P C Bo...

Page 14: ...F 1 EDM B40YGTF 3 VK320M Cap color Black EDM B60YGTF 1 FQ G593 AC220 240V 50 60Hz Lead wire length 800 mm FDF2A88 Ø6 size lead wire length 1200 mm Vinyl tube Black connector color Yellow Ø4 size lead wire length 1200 mm Vinyl tube Blue connector color Brown Ø6 size lead wire length 1200 mm Vinyl tube Black connector color Black Ø6 size lead wire length 1200 mm Vinyl tube Red connector color Red Ø6...

Page 15: ...E DIAGRAM TCJ SV SV PLATE TYPE HEAT EXCHANGER PULSE MOTOR VALVE Liquid side Solenoid valve Capillary tube Check valve Strainer Tempe sensor Symbol TF TCJ2 TC2 TWO TA TWI TC1 Gas side Water Inlet Water Outlet F Flow switch F ...

Page 16: ... redisplayed on the remote controller 2 Operation selection 1 The operation mode changes in response to an operation selection command issued via the remote controller Remote controller command Control outline Ts Temperature setting TA Water inlet temperature 4 Water temperature control After heating start water temperature is controled the follwing tasks Themal OFF with the following conditions 1...

Page 17: ...e state TA or TC2 15 C continued for 2 minutes or more TC1 Gas Temperature TCJ Liquid TF Temperature 7 Cooling oil refrigerant recovery control Recovery operation normally takes place roughly every 2 hours While the outdoor unit is recovering cooling oil refrigerant the hot water modules perform the following control tasks 1 Close the hot water module PMV to a certain degree 2 Engage in recovery c...

Page 18: ...DBY displayed HEATING STANDBY displayed Operation standby Displayed on remote controller 1 When any of the DN codes listed below is displayed P05 Detection of an open phase in the power supply wiring P10 Detection of indoor flooding in at least one indoor unit with the exception of the hot water module L30 Detection of an interlock alarm in at least one indoor unit 2 The system is engaged in a hea...

Page 19: ...4 20V Power supply LED of microprocessor D02 Red PMV output CN82 Blue DC12V Indoor Outdoor communication CN40 Blue Remote controller communication LED D203 Red HA T10 CN61 Yellow DC12V Output signal function CN60 White DC12V Remote controller CN41 Blue DC20V DISP CN72 White DC5V CHK CN71 White DC5V TA TWI sensor CN104 Yellow DC5V TF TCJ2 sensor CN103 Green DC5V Flow switch CN30 Red DC12V TCJ senso...

Page 20: ...ted without communication with outdoor unit or remote controller 2 0 V External error input 1 DC12 V COM Generates test code L30 and automatically shuts down air conditioner only if condition persists for 1 minute DISP Display mode 1 CN72 Display mode input Product display mode Communication just between hot water module and remote controller enabled upon turning on of power Timer short circuited ...

Page 21: ...me if short circuiting DISP pin CN72 on the hot water module P C board in addition to short circuit of CHK pin CN71 on the hot water module P C board the minimum opening degree 30 pls can be set to the hot water module PMV only When open DISP pin the maximum opening degree 1500 pls can be obtained again How to clear Open CHK pin While the system is operating it stops once but automatically returns...

Page 22: ... whether DN is being set or not The LED goes on while DN code is being set Function CODE No DN Code table includes all functions needed to perform applied control on site Type DN code 10 DN Item Description At shipment 03 Central control address 0001 No 1 unit 0099 Unfixed to 0064 No 64 unit 0099 Unfixed 12 Line address 0001 No 1 unit to 0030 No 30 unit 0099 Unfixed Value Default value stored in E...

Page 23: ...up address 1 Header unit 2 Follower unit 2 Follower unit 2 Follower unit 2 Follower unit Outdoor unit Outdoor unit Remote controller Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 1 Indoor unit 2 Refrigerant line 1 Refrigerant line 2 SET DATA CODE No In the example above disconnect the remote controller connections between the indoor units and connect a wired remote controller to the target...

Page 24: ...remote controller These 2 address numbers cannot be used on outdoor units and the CODE No E04 Indoor outdoor communication error will appear if they are mistakenly used 2 If you set addresses to indoor units in 2 or more refrigerate lines manually using the remote controller and will control them centrally set the header outdoor unit of each line as below Set a system address for the header outdoo...

Page 25: ... LOUVER button left side of the button A unit numbers 1 1 is indicated on the LCD it will disappear after a few seconds The indicated number shows the system address and indoor unit address of the unit When 2 or more indoor units are connected to the remote controller group controlled units a number of other connected units appears each time you push the UNIT LOUVER button left side of the button ...

Page 26: ...e LCD display The fans and louvers of all the indoor units in the group are activated 2 Push the UNIT LOUVER button left side of the button Each time you push the button the indoor unit numbers are indicated one after another The first indicated unit number is the address of the header unit Only the fan and louvers of the indicated indoor unit are activated 3 Push the button to finish the procedur...

Page 27: ...n and SWING FIX buttons repeatedly to select a system address 3 Push the button to confirm the system address selection The address of an indoor unit connected to the selected refrigerant line is indicated on the LCD display and its fan and louvers are activated 4 Push the UNIT LOUVER button left side of the button Each time you push the button the indoor unit numbers of the selected refrigerant l...

Page 28: ...number to change if 2 or more units are controlled in a group The fan and louvers of the selected indoor unit are activated The fan of the selected indoor unit is turned on 3 Push the TEMP buttons repeatedly to select 13 13 13 13 13 for CODE No 4 Push the TIME buttons repeatedly to change the value indicated in the SET DATA section to that you want 5 Push the button 6 Push the UNIT LOUVER button l...

Page 29: ...ODE NO Cancels the line selection If no number appears on UNIT No no outdoor unit exists on the line Push button and select another line following step 2 Execute it while the units are stopped 1 Push and hold the TIME buttons at the same time for more than 4 seconds At first the line 1 and CODE No AC AC AC AC AC Address Change are indicated on the LCD display 2 Push UNIT LOUVER left side of the bu...

Page 30: ...gerant line are indicated one after another Only the fan and louvers of the selected indoor unit are activated Repeat steps 4 to 6 to change the indoor unit addresses so as to make each of them unique 7 Push the button All the segments on the LCD display light up 8 Push the button to finish the procedure NOTE The LED on the P C board of the selected hot water module flashes The hot water module fo...

Page 31: ...o to FF FF FF FF FF 3 The display in A of the following figure counts down as follows at 5 second intervals 0005 0005 0005 0005 0005 0004 0004 0004 0004 0004 0003 0003 0003 0003 0003 0002 0002 0002 0002 0002 0001 0001 0001 0001 0001 0000 0000 0000 0000 0000 The error is cleared when 0000 appears However the display counts down from 0005 again 4 Push the to return the display to normal Clearing an ...

Page 32: ...ervice monitoring mode The service monitor lights up The temperature of CODE No 00 00 00 00 00 appears at first 2 Push the button to change to CODE No of the item to monitor Refer to the following table for CODE No 3 Push the UNIT LOUVER button left side of the button to change to the item to monitor Monitor the sensor temperature or operation status of the indoor unit and outdoor unit in the refr...

Page 33: ...w pressure sensor Ps 100 MPa 12 22 32 42 Discharge temperature of compressor 1 Td1 1 C 0024 24 C 13 23 33 43 Discharge temperature of compressor 2 Td2 1 C 14 24 34 Discharge temperature of compressor 3 Td3 1 C 15 25 35 45 Suction Temperature TS 1 C 16 26 36 46 Coil Temperature 1 TE1 1 C 17 27 37 Coil Temperature 2 TE2 1 C 18 28 38 48 Liquid Temperature TL 1 C 19 29 39 49 Outdoor Temperature TO 1 C...

Page 34: ...e of compressor IPDU3 1 C 57 67 77 87 Heat sink temperature of outdoor fan IPDU 1 C 58 In heat cool collecting control 5 0 Normal 1 In collecting control 0010 In heat collecting control 0001 In cool collecting control 59 Pressure release 5 0 Normal 1 In release control 0010 In pressure release control 5A Discharge temperature release 5 0001 In discharge temperature release control 5B Terminal unit...

Page 35: ...e operating status of the compressor Execute a test operation using Start Stop Function of the Indoor Unit from Outdoor Unit in the Service Support Function section Check power voltage of the main power supply Check the cable size of the power supply Check the temperature load of the indoor outdoor units Check the water flow rate and them use isolating valve to adjust Hot water module Check the pi...

Page 36: ...r Each compressor may have a different frequency as a measure against resonance The temperature of the indoor heat exchanger TC indicates TCJ sensor temperature when cooling and TC2 sensor temperature when heating respectively Outdoor unit MMY MAP Operating mode Pressure MPa Pipe surface temperature C Number of compressor rotations rps Indoor fan Air temperature condition DB WB C Pd Ps Discharge T...

Page 37: ...emperature using range Hot water module is not possible to operat when water temperatue above 60 C 2 An outdoor fan would not start or would change speed for no reason Could it just be defrosting operation 3 A pump would not stop Could it just be defrosting or under oil refrigerant recovery control 4 The water temperature dose not increase Could it just be the water flow rate is out of using range...

Page 38: ...ror input interlock Unit shutdown has been caused by external error input CN80 P31 Other indoor unit error Follower unit cannot be operated due to header unit alarm E03 L03 L07 L08 L20 Duplicated central control address There is duplication in central control address setting E03 Indoor remote controller periodic communication error Communication from remote controller or network adaptor has been l...

Page 39: ...er Module Error detected by main remote controller Check code Typical fault site Description of error C06 Faulty central control communication reception Central control device is unable to receive signal C12 Blanket alarm for generalpurpose device control interface Device connected to general purpose device control interface for TCC LINK is faulty P30 Group control follower unit error Group follow...

Page 40: ...erature sensor TE1 TE2 error Outdoor heat exchanger temperature sensors TE1 TE2 have been open short circuited 01 TE1 02 TE2 Outdoor discharge temperature sensor TD2 has been open short circuited F07 F07 Outdoor liquid temperature sensor TL error Outdoor liquid temperature sensor TL has been open short circuited F08 F08 Outdoor outside air temperature sensor TO error Outdoor outside air temperatur...

Page 41: ...for one or more indoor units also detected at indoor end L10 L10 Outdoor capacity not set Outdoor unit capacity has not been set after P C board replacement L17 L17 Outdoor model incompatibility error L18 L18 FS Flow Selector unit error Cooling heating cycle error resulting from piping error is detected L29 L29 SMMS i Series 4 Error in number of IPDUs There are insufficient number of IPDUs P C boa...

Page 42: ...GBT TH has been open short circuited P10 P10 Indoor unit No detected Indoor unit overflow Indoor unit has been shutdown in one refrigerant line due to detection of overflow detected by indoor unit P13 P13 Outdoor liquid backflow detection error State of refrigerant cycle circuit indicates liquid backflow operation P29 P29 01 Compressor 1 02 Compressor 2 03 Compressor 3 Compressor position detectio...

Page 43: ...code Typical fault site Description of error TCC LINK central control or main remote controller display Outdoor 7 segment display Sub code Indoor unit including Hot Water Module A02 A02 Water temperature decrease error Check the water temperature Check the heat insulator of wate pipes A04 A04 Plate type heatexchanger freezing protective operation Check the line heater Check the PMV coil and PMV Ch...

Page 44: ...own Check code Indoor unit No in which fault has occurred Normal display is restored Steps to follow 7 segment display symbols Corresponding alphanumerical letters Procedure To be performed when system at rest 1 Invoke the SERVICE CHECK mode by pressing the buttons simultaneously and holding for at least 4 seconds The letters SERVICE CHECK light up and the check code 01 is displayed indicating the...

Page 45: ... memory Error history can be accessed regardless of whether the air conditioner is in operation or shut down 1 Push the buttons simultaneously and hold for at least 4 seconds 2 The letters SERVICE CHECK light up and the check code 01 01 01 01 01 is displayed 3 When a group No is selected blinking if there is an error history the UNIT No and the latest error history information are displayed altern...

Page 46: ...nal from outdoor unit E04 Check power supply to indoor unit Is power turned on Check connection of indoor outdoor communication cable Check connection of communication connectors on indoor P C board Check connection of communication connectors on outdoor P C board Check for defect in indoor P C board Check for defect in outdoor P C board I F I F Dropping out of indoor unit All stop Indoor unit ini...

Page 47: ...n SW09 Bit 2 on I F P C board of outdoor header unit More than 48 indoor units are connected E16 E16 Check remote controller wiring Check indoor power supply wiring Check P C boards of indoor units Indoor unit Error in communication between indoor header and follower units Stop of corresponding unit Periodic communication between indoor header and follower units cannot be maintained E18 Outdoor he...

Page 48: ...on To stop the fan or fans press SW05 on its own I F Detected outdoor unit No Outdoor follower unit error All stop Outdoor header unit receives error code from outdoor follower unit E28 E28 Check wiring and connectors involved in communication between IPDU I F P C board for bad contact or broken wire Check for defect in outdoor P C board I F A3 IPDU or Fan IPDU Check for external noise I F SMMS i ...

Page 49: ...utdoor P C board I F I F TL sensor error All stop Sensor resistance is infinity or zero open short circuit F07 F07 Check connection of TO sensor connector Check resistance characteristics of TO sensor Check for defect in outdoor P C board I F I F TO sensor error All stop Sensor resistance is infinity or zero open short circuit F08 F08 Check connection of TA sensor connector and wiring Check resist...

Page 50: ...F23 Check connection of Pd sensor connector Check for defect in Pd sensor Check for defect in outdoor P C board I F I F Pd sensor error All stop Output voltage of Pd sensor is zero sensor open circuited Pd 4 15 MPa despite compressor having been turned off F24 F24 Check for defect in indoor P C board faulty EEPROM Indoor unit Other indoor error Stop of corresponding unit Indoor P C board does not ...

Page 51: ...perating compressor detects continuous state of low oil level for about 2 hours H07 H07 Main remote controller Outdoor 7 segment display Check code Sub code MG CTT Magnet contactor Check current detection circuit wiring Check defect in outdoor P C board A3 IPDU IPDU 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side Current detection circuit error All stop Current flow of at least spec...

Page 52: ...sensor connector Check resistance characteristics of TK1 sensor Check for defect in outdoor P C board I F I F Error in temperature sensor for oil level detection 01 TK1 sensor error 02 TK2 sensor error 03 TK3 sensor error 04 TK4 sensor error 05 TK5 sensor error All stop Sensor resistance is infinity or zero open short circuit Check connection of TK2 sensor connector Check resistance characteristic...

Page 53: ... sensors Check for faulty operation in SV3E or SV3F valve Check for clogging in oil equalizing circuit capillary and faulty operation in check valve Check for refrigerant entrapment inside compressor I F SMMS i 4 series 01 TK1 oil circuit error 02 TK2 oil circuit error 03 TK3 oil circuit error 04 TK4 oil circuit error 05 TK5 oil circuit error Oil level detection circuit error All stop No temperatu...

Page 54: ...stop Air discharge temperature TD3 does not increase despite compressor 3 being in operation H25 H25 Check the model name of the outdoor unit Check the miswiring of the communication line between indoor and outdoor Indoor unit Outdoor unit model mismatch error Only the target unit stopped An error was found on the outdoor unit model L02 L02 Check indoor addresses Check for any change made to remot...

Page 55: ...plication in central control address setting L20 Check No of outdoor units connected Only up to 4 units per system allowed Check communication lines between outdoor units Check for defect in outdoor P C board I F I F Too many outdoor units connected All stop There are more than four outdoor units L28 L28 Check model setting of P C board for servicing outdoor I F P C board Check connection of UART ...

Page 56: ...k outdoor service valves gas side liquid side to confirm full opening Check for defect in outdoor fan Check for defect in outdoor fan motor Check outdoor PMVs PMV1 2 for clogging Check indoor outdoor heat exchangers for clogging Check for short circuiting of outdoor suction discharge air flows Check SV2 circuit for clogging Check for defect in outdoor P C board I F Check for error in indoor fan sy...

Page 57: ...rge pipe convergent section I F Outdoor liquid backflow detection error All stop During cooling operation When system is in cooling operation high pressure is detected in follower unit that has been turned off During heating operation When system is in heating operation outdoor PMV 1 or 2 continuously registers opening of 100p or less while under SH control P13 P13 Check for insufficiency in refri...

Page 58: ... TL sensors I F Detected outdoor unit No 4 way valve reversing error All stop Abnormal refrigerating cycle data is collected during heating operation P19 P19 Check for defect in Pd pressure sensor Check service valves gas side liquid side to confirm full opening Check for defect in outdoor fan Check for defect in outdoor fan motor Check outdoor PMVs PMV1 2 4 for clogging Check indoor outdoor heat ...

Page 59: ...r Check for defect in fan IPDU P C board All stop Sub code C Higher temperature than the specified value is detected during operation of the fan Check for defect in fan IPDU P C board All stop Sub code D The resistance value of the sensor is infinite or zero open or short circuit Check power voltage of the main power supply Check for defect in fan IPDU P C board Check connection of fan IPDU P C bo...

Page 60: ... end of central control communication line TCC LINK central control device reception error Continued operation Central control device is unable to receive signal C06 Check error input General purpose device I F Blanket alarm for general purpose device control interface Continued operation Error signal is input to control interface for general purpose devices C12 Check check code of unit that has g...

Page 61: ...r characteristics Temperature C Resistance kΩ Resistance kΩ 10 C or below Temperature C Resistance kΩ 10 C or below TC1sensor Resistance kΩ 10 C or below Temperature C Resistance kΩ 10 C or below TA TWI TF TCJ2 TCJ and TC2 TWO sensor Temperature C Resistance kΩ ...

Page 62: ...he integrity of the refrigerating cycle by conducting a test operation etc Replacement procedure Method 1 If it is possible to turn on the hot water module and read the setting data from the P C board to be replaced via a wired remote controller Reading EEPROM data Procedure 1 Replacing P C board and turning on power Procedure 2 Writing EEPROM data in new EEPROM Procedure 3 Resetting power supply ...

Page 63: ...unit including Hot Water Module comes on with the louvers swinging depending on the model 3 The button allows you to move the CODE No DN code up down by one place 4 First change the CODE No DN code from 10 10 10 10 10 to 03 03 03 03 03 To set central control address Jot down the setting data displayed 5 Change the CODE No DN code using the button Again jot down the setting data displayed 6 Repeat ...

Page 64: ... the system configuration 1 Single stand alone operation Turn on the hot water module and proceed to Procedure 3 2 Group operation A If it is possible to selectively turn on the hot water module being serviced Turn on the hot water module being serviced and proceed to Procedure 3 B If it is not possible to selectively turn on the hot water module being serviced Case 1 a Temporarily disconnect the ...

Page 65: ... list 6 Push the button The display should change from flashing to steady 7 Push the button to bring the system back to normal off state 5 Next write any setting changes made on site after installation such as address settings in the EEPROM Perform the tasks specified in step 1 again 6 Use the button to set the CODE No DN code to 03 03 03 03 03 To set central control address 7 Check the value disp...

Page 66: ...Timer setting wired remote controller 0099 Not determined Depending on model type Depending on capacity type 0099 Not determined 0099 Not determined 0099 Not determined 0000 None 0000 Standard Type Code No 10 Setup data Type Model abb name 0060 Hot water module The initial setup value of EEPROM installed on the service P C board MMW AP LQ Indoor unit capacity CODE No 11 Setup data model 0000 0011 ...

Page 67: ...nel P C board MCC 1403 1 Detachment 1 Carry out the detachment of item 1 Front panel 2 Remove connectors which are connected from the control P C board to the other parts CN030 FS Flow switch Red 3P CN033 LM 2way valve Green 3P CN102 TCJ Red 2P CN101 TC2 TWO Black 2P CN100 TC1 Brown 3P CN103 TF TCJ2 Green 2P CN104 TA TWI Yellow 2P CN082 PMV Blue 6P CN067 AC IN Black 3P CN074 TRANS P White 3P CN075...

Page 68: ...he other parts CN01 White 6P CN02 Yellow 6P CAUTION Unlock the lock of the housing part and then remove the connector 3 Unlock the locks of the card edge spacer 3 positions and then remove the control P C board 2 Attachment 1 Carry out installation by following the detachment procedure in reverse Card edge spacer No Part to be replaced Work procedure Remarks ...

Page 69: ...e electrical control box up to about 10mm pull the electrical control box and then remove the electrical control box CAUTION Be careful of the hook provided on the Electrical control box to detach properly 4 2 Attachment 1 Carry out installation by following the detachment procedure in reverse NOTE Let TCJ TA TWI TF TCJ2 PMV and LM 2way valve coil wiring pass throuh the left side clamps Let TC1 TC...

Page 70: ...ement repair open the water supply source valve and water piping valve to pass water through the unit and check that the flow switch connection has no water leakage Carry out the work of air ventilation in water circuit Cloth Open Cap Lift Cloth Open Cap Lift Blue cap for Blue cap for 027 type 027 type Black cap for Black cap for 056type 056type Check the arrow marked Check the arrow marked on the...

Page 71: ...ply source valve and the valve of water pipe connected to the unit carry out the refrigerant recovery and then remove the refrigerant and water pipes 2 Carry out the detachment of item 4 Electrical control box and item 6 pipe cover plate 3 Remove the screws for the heat exchanger assembly fixing plate as shown below 4x10 7pcs For the unit for 056 type 4x10 8pcs 4 Remove the heat exchanger assembly...

Page 72: ...rigerant before carrying out a water supply to the water pipe system of the Hot water module After connecting the refrigerant pipes check that the connection has no leakage and then carry out vacuuming Control the tightening torque for the liquid side from 33 to 42 N m and the gas side is from 63 to 77 N m After the heat exchanger assembly is replaced open the water supply source valve and water p...

Page 73: ...ment 1 Carry out the detachment of item 1 Front panel 2 Remove connector which is connected from the control P C board to the other part and then remove wiring from the clamp CN082 PMV Blue 6P 3 Loosen the nuts fixing PMV motor with double spanner to remove PMV motor 2 Attachment 1 Carry out installation by following the detachment procedure in reverse NOTE Control the tightening torque for the PM...

Page 74: ... TC1 Insertion drection TC1 Tube color Blue TC2 TWO Tube color Black Sensor TCJ TF TCJ2 and TA TWI 1 Detachment 1 Carry out the detachment of item 1 Front panel 2 Remove connectors which are connected from the control P C board to the other parts and then remove wiring from the clamp CN102 TCJ Red 2P CN103 TF TCJ2 Green 2P CN104 TA TWI Yellow 2P 2 Attachment 1 Carry out installation by following t...

Page 75: ...Q E MMW AP0561LQ E MMW AP0271LQ TR MMW AP0561LQ TR 229 224 228 227 225 226 222 218 219 220 223 215 216 217 221 230 No 229 230 are not included in No 210 211 210 211 212 213 214 201 No label 202 203 209 204 No label 207 206 208 10 pieces pkg 231 232 205 230 ...

Page 76: ... M5 L10 MARK TOSHIBA PIPE ASSY WATER HEAT EXCHANGER PIPE ASSY WATER HEAT EXCHANGER COIL VALVE 2WAY FQ G593 SWITCH FLOW SWITCH FLOW SOCKET NUT FLARE 3 8 IN BONNET SOCKET NUT FLARE 5 8 IN BONNET 5 8 IN STRAINER STRAINER SCREEN VALVE CHECKED BCV 302DY MOTOR PMV EFM MD12TF 1 VALVE PMV EDM B40YGTF 3 BODY PMV VALVE 2WAY FDF2A88 TUBE CAPILLARY ID2 0X2000L HOLDER SENSOR HOLDER SENSOR TS OWNER S MANUAL OWN...

Page 77: ...Q TR 401 402 403 404 405 406 407 408 43050425 43150320 43160626 43160561 43160548 43158187 4316V529 4316V247 SENSOR ASSY SERVICE TC F6 SENSOR ASSY SERVICE TG F4 TERMINAL BLOCK 2P 20A TERMINAL 4P TERMINAL 6P TRANSFORMER TT 13 P C BOARD ASSY MCC 1403 P C BOARD ASSY MCC 1520 4 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 ...

Page 78: ...e indicator Displays the timer mode 6 TEST run indicator Displayed during test run 7 Set temperature display The selected set temperature is displayed 8 Pre heat indicator Displayed when defrost cycle is initiated 9 No function indicator Displayed when the function requested is not available on that model 10 Central control indicator Displayed when the air conditioner is controlled centrally and u...

Page 79: ...UNIT LOUVER 4 Basic operation When you use the hot water module for the first time or change the settings follow the procedures below From next time pushing the button starts running of the hot water module with the chosen settings Preparation Turn on the power switch When turned on the separation line appears and blinks on the remote controller display The remote controller will not work for abou...

Page 80: ...igh frequency waves Not suitable for chemical plants such as liquefied carbon dioxide refrigerant plants Do not install the hot water module in locations where iron or other metal dust is present If iron or other metal dust adheres to or collects on the interior of the hot water module it may spontaneously combust and start a fire A failure may occur in certain locations such as the following Area...

Page 81: ... can be controlled individually However indoor units connected to the same outdoor unit cannot perform cooling and heating simultaneously When you attempt simultaneous operation hot water module performing heating are stopped and the running preparation indicator is displayed on the remote controller An indoor unit performing cooling continues running When you attempt an operation without the conf...

Page 82: ...is stand by The pump and line heater operates for frost protection of water heat exchanger when water temperature decreases or outdoor unit start operation or refrigerant oil recovery control When power of the hot water module is turned on Ticktock sound is heard Sound is generated when the expansion valve operates when power has been turned on LCD blurs when it is touched LCD may temporarily blur...

Page 83: ...ayed in CODE No window Check code is displayed Indoor unit address in which an error occurred is displayed in UNIT No 2 Every pushing of button used to set temperature the error log stored in memory is displayed in order The numbers in CODE No indicate CODE No 01 latest to 04 oldest CAUTION Do not push button because all the error log of the indoor unit will be deleted 3 After confirmation push bu...

Page 84: ...f the outdoor unit Equivalent to HP of the outdoor unit When the height difference between the indoor units including hot water module is over 15 m Up to 105 including hot water module of the capacity code No Item SMMS i with Hot Water Module connection SMMS i without Hot Water Module connection 1 System capacity 48 HP 48 HP 2 No of outdoor units connected 4 4 3 Indoor connection capacity Max 115 ...

Page 85: ...r units H3 Height difference between outdoor units H4 Height difference between HWMs H5 Height difference between standard indoor units and HWMs H1 Outdoor units installed higher than indoor units H2 H5 3 m 70 m Standard indoor unit HWM HWM Header unit H3 5 m H2 10 m 1 H5 10 m 1 H4 3 m Standard indoor unit H1 Outdoor units installed lower than indoor units H2 H5 3 m 30 m H2 H5 3 m 40 m Standard in...

Page 86: ... Water Module Sample 1 HWM M Isolating valve Diverting 3 Way valve Air vent valve Isolating valve Strainer 30 to 40 meshes Isolating valve Pump Procured locally Auxiliary heat source Booster Heater Direct Buffer Tank for Space Heating Heater Auxiliary heat source Locally procure and install protective devices such as the heater and pump Line Heater Crucial heat source Isolating valve Cold water fe...

Page 87: ...alve For heating applications Fan coils radiators under floor Locally procure and install protective devices such as the heater and pump Within 5 m HWM Isolating valve Air vent valve Isolating valve Strainer 30 to 40 meshes Isolating valve Pump Procured locally Auxiliary heat source Line Heater Crucial heat source Isolating valve Cold water feed Heater Sanitary hot water use Locally procure and in...

Page 88: ...trouble in the hot water module or noise may adversely affect the equipment s operation Locations where there is anything under the unit installed that would be compromised by wetness If the drain has become blocked or when the humidity is over 85 condensation from the hot water module will drip possibly causing damage to anything underneath In the case of the wireless type of system rooms with th...

Page 89: ...modules and human injury Do not put a heavy article on the hot water module or let a person get on it Even units are packaged Carry in the hot water module as it is packaged if possible If carrying in the hot water module unpacked by necessity use buffering cloth or other material to not damage the unit To move the hot water module hold the bottom face of the unit only Do not apply force to the ot...

Page 90: ...le is imperfectly installed an accident by falling or dropping may be caused CAUTION Drain water is discharged from the hot water module Especially while operating Install the hot water module in a place with good drainage For installation be careful of the strength and level of the foundation so that abnormal sounds vibration or noise are not generated Be sure to install the hot water module in a...

Page 91: ...low Use level gauge or vinyl hose to confirm whether the unit is fix horizontally Remove the part for transportation Be sure to remove the transportation part before operating the unit Front view 0 to 5 mm Set the drain pipe connecting port side within 5 mm lower than opposite side Side view 5 mm Set the front and air back sides are within 5 mm with each other Transportation part ...

Page 92: ...lled this may cause impaired performance or damage to the plate heat exchanger from freezing Install a suitable air vent procured locally on the water pipe After sending water through the pipe be sure to vent the excess air To avoid water leak wrap some sealing tape around the screw part Water pipes can get very hot depending on the preset temperature Wrap the water pipes with heat insulation proc...

Page 93: ...pump procurement process 027type Min Rated Max Water flow rate L min 19 5 22 9 26 3 Pressure loss kPa 28 5 40 5 53 5 056type Min Rated Max Water flow rate L min 38 9 45 8 52 6 Pressure loss kPa 35 2 44 2 58 2 20 25 30 35 40 45 50 55 60 19 20 21 22 23 24 25 26 27 Pressure loss kPa Flow rate L min 25 30 35 40 45 50 55 60 65 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 Pressure loss...

Page 94: ... screw part Drain connection is made from steel Do not connect the joint pipe made from stainless steel Pipe material size and insulator The following materials for piping work and insulating process are procured locally Pipe material Hard vinyl chloride pipe VP25A Nominal outer diameter 32 mm Insulator Foamed polyethylene foam thickness 10 mm or more Support bracket As long as possible Appox 10 c...

Page 95: ...ring 1 Cut the pipe with a pipe cutter Remove burrs completely Remaining burrs may cause gas leakage 2 Insert a flare nut into the pipe and flare the pipe Use the flare nut provided with the unit or the one used for the R410A refrigerant The flaring dimensions for R410A are different from the ones used for the conventional R22 refrigerant A new flare tool manufactured for use with the R410A refrig...

Page 96: ... remote controller cord through upper side of the refrigerant pipe and drain pipe Do not leave the remote controller at a place exposed to the direct sunlight and near a stove Outer dia of connecting pipe mm Tightening torque N m 6 4 14 to 18 1 4 to 1 8 kgf m 9 5 33 to 42 3 3 to 4 2 kgf m 12 7 50 to 62 5 0 to 6 2 kgf m 15 9 63 to 77 6 3 to 7 7 kgf m Hot water module Union Heat insulation pipe Acce...

Page 97: ...for the Control wiring between indoor unit including hot water module and outdoor unit and Central controller wiring To prevent noise trouble use 2 core shield wire The length of the communication line means the total length of the inter unit wire length between indoor including hot water module and outdoor units added with the central control system wire length Communication line Remote controlle...

Page 98: ...le and outdoor units wire becomes automatically the header unit Do not turn off the circuit breaker of the hot water module when the circuit breaker of the system outdoor unit is set to the ON position It becomes a cause of a trouble Wiring example U1 U2 U1 U2 U3 U4 L1 L2 L3 N U5 U6 L N A B A B U1 U2 U3 U4 L1 L2 L3 N U5 U6 U1 U2 L N A B A B U1 U2 L N A B A B U1 U2 L N A B Outdoor Power supply 380 ...

Page 99: ... stranded wire 1 5 mm Side C Earth Screw Cord clamp For power supply wire Power supply wire Remote controller wire Control wire Output signal function wire Remote controller wiring Strip off approx 9 mm the wire to be connected Wiring diagram Output signal function wiring Connect the following output signals from the hot water module NOTE Auxiliary relays locally procured must be connected to outp...

Page 100: ... was shipped from the factory all units are set to STANDARD factory default If necessary change the indoor unit including hot water module settings The settings are changed by operating the wired remote controller The settings cannot be changed using only a wireless remote controller simple remote controller or group control remote controller by itself so install a wired remote controller separate...

Page 101: ...sed for the hot water module Remote controller sensor has no function when remote controller is connected to the hot water module LED Hot Water Module P C board Flashing 11 Test run Before test run Before turning on the power supply carry out the following procedure 1 By using 500 V megger check that resistance of 1 MΩ or more exists between the terminal block L to N and the earth grounding If res...

Page 102: ...scratches Fix or replace them when they are deformed or damaged Drain pan Hot water module Dust dirt clogging drain contamination Clean the drain pan and check the downward slope for smooth drainage Exterior Hot water module Outdoor Rust peeling of insulator Peeling lift of coat Apply repair coating Water pipes Hot water module Rust leakage Evidence of leakage Checking Strainer Hot water module Du...

Page 103: ...utdoor unit Detected at outdoor unit side I F E08 E08 Duplicated indoor unit addresses Duplicated indoor unit addresses Indoor unit I F E09 Duplicated master remote controllers Remote controller E10 Communication error between indoor unit MC Indoor unit E12 E12 01 Indoor Outdoor units communication 02 Outdoor Outdoor units communication Automatic address start error I F E15 E15 No indoor unit duri...

Page 104: ...sor error 02 TK2 sensor error 03 TK3 sensor error 04 TK4 sensor error 05 TK5 sensor error Oil level detective temp sensor error I F H14 H14 Comp 2 case thermo operation I F H15 H15 TD2 sensor miswiring I F H16 H16 01 TK1 oil circuit system error 02 TK2 oil circuit system error 03 TK3 oil circuit system error 04 TK4 oil circuit system error 05 TK5 oil circuit system error Oil level detective circui...

Page 105: ...condition 02 TD condition Gas leak detection I F P17 P17 Discharge temp TD2 error I F P18 P18 Discharge temp TD3 error I F P19 P19 Detected outdoor unit number 4 way valve inverse error I F P20 P20 High pressure protective operation I F P22 P22 0 IGBT circuit 1 Position detective circuit error 3 Motor lock error 4 Motor current detection C TH sensor error D TH sensor error E Inverter DC voltage er...

Page 106: ...omp 3 Fan 0F Comp 1 Comp 2 Comp 3 Fan Check code Check code name Judging device Central control device indication Outdoor unit 7 segment display Auxiliary code C05 Sending error in TCC LINK central control device TCC LINK C06 Receiving error in TCC LINK central control device TCC LINK C12 Batch alarm of general purpose equipment control interface General purpose equipment I F P30 Differs according...

Page 107: ... used in multi air conditioners is 0 3 kg m3 NOTE 1 If there are 2 or more refrigerating systems in a single refrigerating device the amounts of refrigerant should be as charged in each independent device For the amount of charge in this example The possible amount of leaked refrigerant gas in rooms A B and C is 10 kg The possible amount of leaked refrigerant gas in rooms D E and F is 15 kg NOTE 2...

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Toshiba MMW-AP0271LQ-E, Service Manual

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