Toshiba MMY-MAP0804 Series Quick Reference Download

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Description

Compressor breakdown

Compressor error (lockup) MG-CTT error

Current detection circuit error

TD1 sensor miswiring (incomplete insertion)

Activation of low-pressure protection

Low oil level protection

Error in temperature sensor for oil level detection

TD2 sensor miswiring (incomplete insertion)

Oil level detection circuit error

TD3 sensor miswiring (incomplete insertion)

Duplicated indoor header unit

Duplicated outdoor line address

Duplicated priority indoor unit (as displayed on priority indoor unit)

Duplicated priority indoor unit (as displayed on indoor unit other

than priority indoor unit)

Connection of group control cable to standalone indoor unit

Indoor group/addresses not set

Indoor capacity not set

Outdoor capacity not set

Duplicated central control address

Too many outdoor units connected

Error in No. of IPDUs

External interlock of indoor unit

Extended IC error

Indoor fan motor error

Discharge temperature TD1 error

Activation of highpressure SW

Detection of open phase/phase sequence

Inverter DC voltage (Vdc) error (compressor) MG-CTT error

Heat sink overheating error

Indoor overflow error

Indoor fan motor error

Outdoor liquid backflow detection error

Gas leakdetection (TS1 condition)

Gas leak detection (TD condition)

Discharge temperature TD2 error

Discharge temperature TD3 error

4-way valve reversing error

Activation of high-pressure protection

Outdoor fan IPDU error

G-TR shortcircuit protection error

Compressor position detection circuit error

Other indoor error (group follower unit error)

Check Code List

Description

Indoor-remote controller communication error

(detected at remote controller end)

Remote controller transmission error

Indoor-remote controller communication error

(detected at indoor end)

Indoor-outdoor communication circuit error

(detected at indoor end)

Dropping out of indoor unit

Indoor-outdoor communication circuit error

(detected at outdoor end)

Duplicated indoor address

Duplicated master remote controller

Indoor inter- MCU communication error

Automatic address starting error

Indoor unit not found during automatic address setting

Too many indoor units connected

Error in communication between indoor header and follower units

Error in number of outdoor header units

Connection to other line found during automatic address setting

Outdoor-outdoor communication transmission error

Duplicated follower outdoor address

Dropping out of outdoor unit

Outdoor follower unit error

IPDU communication error

Indoor TCJ sensor error

Indoor TC2 sensor error

Indoor TC1 sensor error

TD1 sensor error

TD2 sensor error

TE1/TE2 sensor error

TL sensor error

To sensor error

Indoor TA sensor error

Indoor TF sensor error

TS1 sensor error

TH sensor error

Outdoor temperature sensor wiring error (TE1, TL)

Outdoor pressure sensor wiring error (Pd, Ps)

TD3 sensor error

Ps sensor error

Pd sensor error

Other indoor error

Outdoor EEPROM error

Main

remote

controller

H01

H02

H03

H05

H06

H07

H08

H15

H16

H25

L03

L04

L05

L06

L07

L08

L09

L10

L20

L28

L29

L30

—

P01

P03

P04

P05

P07

P10

P12

P13

P15

P17

P18

P19

P20

P22

P26

P29

P31

Main

remote

controller

E01

E02

E03

E04

E06

—

E08

E09

E10

E12

E15

E16

E18

E19

E20

E23

E25

E26

E28

E31

F01

F02

F03

F04

F05

F06

F07

F08

F10

F11

F12

F13

F15

F16

F22

F23

F24

F29

F31

Check Codes Displayed on Remote Controller and SMMS-i Outdoor Unit

(7-Segment Display on I/F Board) and Locations to Be Checked

Summary of Contents for MMY-MAP0804 Series

Page 1: ...Quick reference R410A FILE NO A11 005 ...

Page 2: ...g of outdoor units Outdoor unit connecting pipes The longest piping between outdoor units L0 25 m Main piping L1 Height difference between outdoor and indoor units H1 70 m First branching section L3 Y shaped branching joint L4 L5 L6 Indoor unit f g h i j The longest piping length from the first branch Li 90 m The longest piping length L 235 m Indoor unit a b c d e j Indoor unit connecting pipe Bra...

Page 3: ...r less if the height difference between indoor units H2 is more than 3m Outdoor unit combination Total capacity of outdoor units Indoor unit connection Total capacity of indoor units varies depending on the height difference between indoor units Up to 4 units Up to 48 HP Up to 48 units H2 15m 135 of outdoor units capacity 15m H2 105 of outdoor units capacity 02 Total extension of pipe liquid pipe ...

Page 4: ...HP 12HP 10HP 16HP 12HP 12HP 16HP 14HP 12HP 16HP 16HP 12HP 16HP 16HP 14HP 16HP 16HP 16HP 8HP 8HP 8HP 8HP 8HP 10HP 8HP 8HP 10HP 10HP 8HP 10HP 10HP 10HP 8HP 8HP 8HP 8HP 10HP 8HP 8HP 8HP 10HP 10HP 8HP 8HP 10HP 10HP 10HP 8HP 10HP 10HP 10HP 10HP 12HP 10HP 10HP 10HP 12HP 12HP 10HP 10HP 12HP 12HP 12HP 10HP 12HP 12HP 12HP 12HP C Corrective amount of refrigerant kg 1 5 2 5 3 5 8 5 10 5 0 0 3 0 5 0 7 5 8 5 9...

Page 5: ...ide Fan motor FP Heat exchanger Fusible plug Check valve Check valve Check valve Check valve Check valve Check valve Check valve SV41 SV42 High pressure switch High pressure switch Compressor 2 Inveter Compressor 1 Inveter Liquid side packed valve Gas side packed valve Balance pipe packed valve Symbol Solenoid valve Capillary tube Check joint Strainer Temperature sensor Distributor Outdoor Unit 14...

Page 6: ... Check valve Check joint Strainer Temperature sensor Distributor Right side Left side Check valve Check valve 4 way valve High pressure sensor Fusible plug Liquid tank Oil separator High pressure switch High pressure switch High pressure switch Accumulator Oil header Compressor 1 Inverter Compressor 2 Inverter Compressor 3 Inverter Check valve Check valve Liquid side packed valve Gas side packed v...

Page 7: ... for rapid decreasing of oil Decreases oil flowing to the cycle 2 Reserve function of surplus oil TD1 Connector CN502 White TD2 Connector CN503 Pink TD3 Connector CN504 Blue 1 Protection of compressor discharge temp 2 Used for discharge temperature release Connector CN505 White 1 Controls PMV super heat in heating operation Connector CN520 Green 1 Controls defrost in heating operation 2 Controls o...

Page 8: ...mmunication error detected at remote controller end Remote controller transmission error Indoor remote controller communication error detected at indoor end Indoor outdoor communication circuit error detected at indoor end Dropping out of indoor unit Indoor outdoor communication circuit error detected at outdoor end Duplicated indoor address Duplicated master remote controller Indoor inter MCU com...

Page 9: ...mote controller in the case of a wired remote controller Check that a frame as shown in the following figure at left is displayed on the LC display section of the remote controller If no frame is displayed as shown in the above figure at right the remote controller does not have a normal supply of power check the following items Check the power supply of the indoor unit Check the wiring between th...

Page 10: ...n the power of all the outdoor units for the refrigerant line for which the address is to be set up Check that L08 is displayed on the 7 segment display B on the interface PC board of the header unit in the system where the address is to be set up Confirm the items in Address Setup Procedure and then set up the address according to the operation procedure Be careful to note that the setup operatio...

Page 11: ...header outdoor unit Example When controlling a single refrigerant line centrally When controlling 2 or more refrigerant lines centrally Address setting procedure To procedure 1 To procedure 2 System wiring diagram Outdoor Indoor Indoor Indoor Indoor Outdoor Central remote controller Central remote controller Central remote controller Remote controller Remote controller Remote controller Remote con...

Page 12: ...g diagram Indoor Indoor Indoor Indoor Outdoor Outdoor Remote controller Group control SW06 SW07 SW09 SW10 SW11 SW12 SW13 SW14 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 SW13 SW14 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 O O O O O O O O O O O O O O O O O O O O O O O O O 2 3 4 1 2 3 4 SW13 SW14 1 15 16 17 18 19 20 21 22 23 24 25 26 27 28 O O O O O O O O O O O O O O O O O O O O O O O O...

Page 13: ... 3 After the indication U 1 U 1 flash starts flashing on the display When the flashing stops and U 1 U 1 light remains lit on the display the setting is complete 7 Repeat steps 4 to 6 for other refrigerant lines 8 After completing address setting of all systems turn off dip switch 2 of SW30 on the interface P C boards of all the header outdoor units connected to the same central control except the...

Page 14: ...on manuals of the central control devices SW15 SW04 1 2 SW13 SW14 SW01 SW02 SW03 D600 D601 D602 D603 D604 SW05 7 segment display Header unit interface P C board SW30 Header units are connected to the same central control except the header unit with the smallest line address number AddressSetup continue 13 ...

Page 15: ...r of indoor outdoor communication line and central control line ON Set to OFF after setting addresses Set to OFF after setting addresses ON Relay connector Connect after setting addresses Connect after setting addresses Connect after setting addresses Open Open Open Line system address 1 1 2 2 3 Indoor unit address 1 2 1 2 1 Group address 0 0 1 2 0 A U1 U2 U3 U4 U3 U4 U3 U4 U3 U4 U3 U4 U5 U6 U1 U2...

Page 16: ...ere indoor unit addresses are decided in advance from the wired remote controller or in cases where addresses are change after address setup 1 Arrange one indoor unit and one remote controller set to 1 by 1 2 Turn on the power 3 Push the SET CL TEST buttons simultaneously for 4 seconds or more LCD begins blinking Refrigerant line address 4 Using the TIME buttons set the DN code to 12 5 Using the T...

Page 17: ... interface P C board of the header outdoor unit if the switch is OFF Leave it as it is if it has already been set to ON 3 Confirm that the 7 segment display indicates A d c L and set SW01 SW02 and SW03 to 1 1 1 respectively 4 After a time U 1 L08 appears on the 7 segment display if the address clearing has been completed successfully If the 7 segment display indicates A d n G the outdoor unit may ...

Page 18: ...up as they are Set up an address only for the unit where the address is undefined Addresses are allocated from lower numbers Setup procedure Set up the outdoor header units in the refrigerant line to which indoor units have been added as follows 1 Remove the relay connector between U1 U2 and U3 U4 2 If it is off turn on SW30 bit 2 on the interface PC board at outdoor header unit side Turn off the ...

Page 19: ... 2 Line address 1 entral remote controller Follower unit C Follower unit B Outdoor unit Indoor unit Remote controller Remote controller Remote controller Relay connector Terminal resistance Line address Main check items 1 Is the relay connector of the header unit connected after address setup 2 Is the relay connector of the follower unit removed 3 Is the end resistance SW30 bit 2 of the header uni...

Page 20: ...ication of indoor units with priority There are two or more indoor units set up with priority Address setup error Only indoor addresses of all the connected indoor units are undefined o0 Countermeasures Check that the header outdoor unit power is on Set up the address again Set up the address again Check SW30 bit 2 of the header unit No connection between multiple refrigerant lines SW30 bit 2 is o...

Page 21: ...de on the 7 Segment Display on the Interface P C Board of the Header Unit Although there is Indoor Unit that is not Accepting Operation from the Indoor Remote Controller Indoor remote controller status No response No display on the indoor remote controller no line is output Header unit 7 segment display None None Countermeasures Modify the wiring Set up the address Turn on the power Set the group ...

Page 22: ...e number of connected indoor units is too few The number of outdoor units connected to a group is too few in group operation from an indoor remote controller In Checking the Number of Connected Outdoor Units and Connected Indoor Units after Address Setup a Lower Number of Connected Units is Displayed There are Outdoor Indoor Units that do not Operate in a Test Operation TroubleshootinginTestOperat...

Page 23: ...erature Heating cooling recovery controlled 5 Pressure release 5 Discharge temperature release 5 Follower unit release U2 U2 U4 outdoor units 5 Outdoor unit horsepower Display format Unit 1 C 1 C 1 C 1 C 1 C 1 C 1 C 1 10 pls 1 unit 10 HP 1 unit 10 HP Display format Unit 100 MPa 100 MPa 1 C 1 C 1 C 1 C 1 C 1 C 1 C 1 C 1 pls 1 pls 10 A 10 A 10 A 10 A Display format Unit 10 rps 10 rps 10 rps 1 mode 1...

Page 24: ...FAN SETDATA SETTING Stars running To see the indoor unit address of an indoor unit which you know the position of z z z z z When the unit is individual the indoor unit is paired with a wired remote controller one to one or it is a group controlled one Execute it while the units are running 1 Push the ON OFF button if the units stop 2 Push the UNIT LOUVER button left side of the button A unit 1 1 n...

Page 25: ...n and louvers of the indicated indoor unit are activated l To select another system address 5 Push the CL button to return to step 2 After returning to step 2 select another system address and check the indoor unit addresses of the line 6 Push the TEST button to finish the procedure Changing the Indoor Unit Address Using a Remote Controller To change an indoor unit address using a wired remote con...

Page 26: ...the line 1 and CODE No AC Address Change are indicated on the LCD display 2 Push UNIT LOUVER left side of the button and SWING FIX buttons repeatedly to select a system address 3 Push the SET button The address of one of the indoor units connected to the selected refrigerant line is indicated on the LCD display and the fan and louvers of the unit are activated At first the current indoor unit addr...

Page 27: ...001 0000 When the count arrives 0000 the error is cleared However counting from 0005 is repeated on the display 4 When TEST button is pushed the status returns to the normal status l Error clearing in indoor unit Error in the indoor unit is cleared by ON OFF button on the remote controller Only error of the indoor unit connected with operating remote controller is cleared Clearing Error by Using S...

Page 28: ...ing 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 SET button is pushed the system returns to normal off state Type DN code 10 1 Default value stored in EEPROM mounted on service P C board Indoor Unit Capacity DN code 11 Value 0000 0001 1 0002 0003 0004 0005 0006 0007 0008 0010 0011 0013 0014 0016 0018 0050 Type 1 way Air...

Page 29: ...y Air Discharge Cassette 0000 Unfixed 0001 to 0034 0001 No 1 unit to 0030 No 30 unit 0001 No 1 unit to 0064 No 64 unit 0000 Individual 0001 Header unit of group 0002 Follower unit of group 0000 No louver 0001 Swing only 0002 1 way Air Discharge Cassette type Under Ceiling type 0003 2 way Air Discharge Cassette type 0004 4 way Air Discharge Cassette type 0000 0 deg to 0010 10 deg For setup temperat...

Page 30: ... SW01 SW02 SW03 to 2 7 1 and push SW04 for 2 seconds or more Release Return SW01 SW02 SW03 to 1 Setup Set SW01 SW02 SW03 to 2 7 1 and push SW05 for 2 seconds or more Release Return SW01 SW02 SW03 to 1 Setup Set SW01 to 16 set SW02 and SW03 to address No 1 to 64 to be started and push SW04 for 2 seconds or more Release Return SW01 SW02 SW03 to 1 1 1 Setup Set SW01 to 16 set SW02 and SW03 to address...

Page 31: ...ormal C B Refrigerant recovery in heating H1 Normal H Automatic addressing A Ad B During automatic addressing FF Normal Power pick cut A dU B Normal During 50 90 capacity operation _50 _90 While control is based on BUS line input E50 E90 Optional control P C board input Displays optional control status A B Operation mode selection During priority heating normal h Priority cooling c Heating only H ...

Page 32: ... No 1 backup 1 Compressor No 2 backup 1 Compressor No 3 backup 1 A B Control valve output data Displays control output status of solenoid valve A B 4 way valve ON 4 way valve 2 OFF H 1 4 way valve OFF 4 way valve 2 ON H 0 SV2 ON SV5 OFF SV6 OFF 2 1 0 0 SV2 OFF SV5 ON SV6 ON 2 0 1 0 SV2 OFF SV5 OFF SV6 ON 2 0 0 1 SV3A ON SV3B OFF SV3C OFF SV3D OFF 3 1 0 0 0 SV3A OFF SV3B ON SV3C OFF SV3D OFF 3 0 1 ...

Page 33: ... current A U SW03 setting No 1 Outdoor unit No U2 to U4 B is value of operating current in decimal format 3 Display of Outdoor Cycle Data Displayed at Each Outdoor Unit SW01 SW02 SW03 1 2 3 4 5 6 7 8 1 9 2 10 11 12 13 14 15 16 4 Display of Outdoor Cycle Data Displayed at Header Unit This method is used when displaying follower unit information on the 7 segment display of the header unit SW01 SW02 ...

Page 34: ... theoretically available the number of indoor units that can be connected to the same refrigerant piping system is limited to 48 6 Display of Outdoor EEPROM Writing Error Code Displayed on Header Unit Only The latest error code written in the EEPROM of each outdoor unit is displayed This function is used to check the error code after the resetting of the power supply To display the error code push...

Page 35: ...d in the outdoor unit Use this function to check there is no refrigerant clogging with ON OFF operation of the solenoid valve Operation 1 Set the switches SW01 SW02 SW03 on the interface P C board of the outdoor unit to 2 1 3 2 When H r is displayed in 7 segment display A keep pushing the switch SW04 for 2 seconds or more 3 From when 2 is displayed in 7 segment display B SV2 is turned on 4 After t...

Page 36: ...ation with the Max fan speed within approx 10 seconds after E 0 was displayed Release Push the push switch SW05 on the interface P C board in the header unit for 2 seconds or more The outdoor fan which was operated stops Check that U 1 is displayed on 7 segment display A and then finish the work Pulse Motor Valve PMV Forced Open Fully Close fully Function in Outdoor Unit This function is provided ...

Page 37: ...s see Note 1 All the compressors in the same unit fail A fault occurs in a compressor motor coil e g a layer short circuit A fault occurs in a refrigerating cycle part fan or related part or electrical part A fault occurs in a temperature sensor or pressure sensor Method of backup operation Compressor backup see Note 2 Outdoor unit backup or coolingseason outdoor unit backup see Notes 1 3 4 and 5 ...

Page 38: ...F OFF OFF ON OFF OFF OFF OFF ON OFF Three compressor model Factory default setting When compressor No 1 front left is faulty When compressor No 2 front center is faulty When compressor No 3 front right is faulty Two compressor model Factory default setting When compressor No 1 front left is faulty When compressor No 2 front right is faulty SW06 Bit 1 Bit 2 Bit 3 Bit 4 OFF OFF OFF OFF ON OFF OFF OF...

Page 39: ...to prevent refrigerant stagnation in the unit However if there is a leakage from an outdoor PMV unable to close fully close the liquid pipe service valve 4 In case of fault in compressor electrical part I F P C board or IPDU P C board From this point on keep the power supply to the failed unit off In case of fault in refrigerating circuit or related part pressure sensor temperature sensor refriger...

Page 40: ... the header unit error clearance 1 Set SW01 02 03 on the interface P C board to 1 1 1 and confirm that U1 E26 dropping out of an outdoor unit is displayed on the 7 segment display 2 Set SW01 02 03 on the interface P C board to 2 16 1 Upon confirming that Er is displayed on the 7 segment display push SW04 and hold for 5 seconds or more 3 Er CL error clearance completed will be displayed on the 7 se...

Page 41: ...t Disconnect the connector CN03 for outdoor outdoor communication BUS2 provided on the interface P C board Setup of failed follower outdoor unit 2 3 4 CN03 BUS2 Fully close gas pipe service valve Leave service valves of liquid and balance pipes fully open if there is leakage from outdoor PMV fully close liquid pipe In case of fault in refrigerating circuit or related part disconnect BUS2 communica...

Page 42: ...failed header unit to unit selected as header unit U1 U2 If central control device is connected redirect central control communication line from failed header unit to unit selected as new header unit U3 U4 Unit selected as new header unit previously follower unit No 1 Central control communication line U3 U4 terminal Outdoor outdoor communication line U1 U2 terminal Follower unit No 2 11 Turn on t...

Page 43: ...heat exchangers or sub heat exchangers cannot be recovered In that case recover any residual gas in the heat exchangers or sub heat exchangers using a tube piercing valve or some other tool After a pump down operation do not perform any welding until the residual gas in the heat exchang ers is recovered 2 Refrigerant Recovery Procedure A Case of No Outdoor Unit Backup Operation Setting Work proced...

Page 44: ...play switches each time SW04 is pushed Display Example rd 11 Initial display Pd 1 20 High pressure sensor output Ps 1 20 Low pressure sensor output Selection of outdoor unit for pressure adjustment 8 Of all outdoor units operating in the pump down mode select the one with the lowest unit No as an outdoor unit for pressure adjustment Identifying Unit No The unit No is the number displayed on the 7 ...

Page 45: ...ose gas pipe service valve 8 Select outdoor unit with lowest unit No as outdoor unit for pressure adjustment Fully close balance pipes of all outdoor units other than unit for pressure adjustment and failed unit While monitoring low pressure sensor output adjust pressure to around 0 12 MPa by slowly closing gas pipe service valve When low pressure sensor output of failed outdoor unit falls below 0...

Page 46: ... check joint using a gauge manifold and purge the manifold of air to recover refrigerant from the liquid tank and heat exchangers 2 Fully close the liquid pipe packed valve of the failed outdoor unit Leave the service valve of the gas pipe and the packed valve of the balance pipe fully open Setup of unit selected as header unit hereafter header outdoor unit 3 Set SW01 02 03 on the interface P C bo...

Page 47: ...covery device Be sure to measure the amount of recovered refrigerant This is necessary to determine how much additional refrigerant will be needed after the completion of the repair This is the end of the refrigerant recovery operation Set SW01 02 03 of the header unit back to 1 1 1 8 6 7 9 10 12 11 Approx 10 minutes after system startup fully close gas pipe service valve Select header unit as uni...

Page 48: ...r repair in a 30HP system Amount of refrigerant required by system as it was initially 30HP in capacity 34 5kg Amount of refrigerant required by system with available outdoor units only 20HP in capacity 26 0kg Amount of refrigerant to be removed from system 34 5 26 0 8 5kg 3 Set up the outdoor unit from which refrigerant has been recovered in the manner described in Outdoor Unit Backup Operation S...

Page 49: ...MEMO ...

Page 50: ...MEMO ...

Page 51: ...MEMO ...

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Toshiba MMY-MAP0804 Series, Quick Reference

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