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Toshiba MCY-MHP0404HT Service Manual Download Page 109

120

F01

–

–

Indoor 

unit

Indoor TCJ 

sensor error

Stop of 

corresponding 

unit

Sensor resistance is infinity 

or zero (open / short circuit). 

• Check connection of TCJ 

sensor connector and 

wiring.

• Check resistance 

characteristics of TCJ 

sensor.

• Check for defect in indoor 

P.C. board.

F02

–

–

Indoor 

unit

Indoor TC2 

sensor error

Stop of 

corresponding 

unit

Sensor resistance is infinity 

or zero (open / short circuit). 

• Check connection of TC2 

sensor connector and 

wiring.

• Check resistance 

characteristics of TC2 

sensor.

• Check for defect in indoor 

P.C. board.

F03

–

–

Indoor 

unit

Indoor TC1 

sensor error

Stop of 

corresponding 

unit

Sensor resistance is infinity 

or zero (open / short circuit). 

• Check connection of TC1 

sensor connector and 

wiring.

• Check resistance 

characteristics of TC1 

sensor.

• Check for defect in indoor 

P.C. board.

F04

F04

–

I/F

TD sensor error All stop

Sensor resistance is infinity 

or zero (open / short circuit). 

• Check connection of TD 

sensor connector.

• Check resistance 

characteristics of TD 

sensor.

• Check for defect in outdoor 

P.C. board (I/F).

F06

F06

–

I/F

TE sensor error All stop

Sensor resistance is infinity 

or zero (open / short circuit). 

• Check connection of TE 

sensor connectors.

• Check resistance 

characteristics of TE 

sensors.

• Check for defect in outdoor 

P.C. board (I/F).

F07

F07

–

I/F

TL sensor error All stop

Sensor resistance is infinity 

or zero (open / short circuit). 

• Check connection of TL 

sensor connector.

• Check resistance 

characteristics of TL 

sensor.

• Check for defect in outdoor 

P.C. board (I/F).

F08

F08

–

I/F

TO sensor error All stop

Sensor resistance is infinity 

or zero (open / short circuit). 

• Check connection of TO 

sensor connector.

• Check resistance 

characteristics of TO 

sensor.

• Check for defect in outdoor 

P.C. board (I/F).

F10

–

–

Indoor 

unit

Indoor TA 

sensor error

Stop of 

corresponding 

unit

Sensor resistance is infinity 

or zero (open / short circuit). 

• Check connection of TA 

sensor connector and 

wiring.

• Check resistance 

characteristics of TA 

sensor.

• Check for defect in indoor 

P.C. board.

F11

–

–

Indoor 

unit

Indoor TF 

sensor error

Stop of 

corresponding 

unit

Sensor resistance is infinity 

or zero (open / short circuit). 

• Check connection of TF 

sensor connector and 

wiring.

• Check resistance 

characteristics of TF 

sensor.

• Check for defect in indoor 

P.C. board.

F12

F12

–

I/F

TS sensor error All stop

Sensor resistance is infinity 

or zero (open / short circuit). 

• Check connection of TS 

sensor connector.

• Check resistance 

characteristics of TS 

sensor.

• Check for defect in outdoor 

P.C. board (I/F).

Location

of

detection

Description

System status

Error detection 

condition(s)

Check items (locations)

Main 

remote 

controller

Outdoor 7-segment display

Check

code

Sub-code

Check code

108

Summary of Contents for MCY-MHP0404HT

Page 1: ...de in Thailand model SVM 13011 SVM 13011 MMU AP 4HY C Made in China model A10 1402 A10 1402 2 way Cassette Type MMU AP WH A10 007 A10 007 MMU AP WH C A10 007 A11 008 Concealed Duct Standard Type MMD AP 4BH C A10 033 A11 008 MMD AP 6BH SVM 13087 SVM 13087 Slim Duct Type MMD AP 4SPH A12 005 A12 005 MMD AP 4S P H C A12 005 A11 008 MMD AP 6M P HY C Made in China model A10 1403 A10 1403 High wall Type ...

Page 2: ...oise filter MCC 1551 27 5 Refrigerant piping systematic drawing 28 6 Control outline 30 7 Applied control for outdoor unit 36 7 2 Priority operation mode setting 36 7 3 Applied control of outdoor unit 38 7 3 1 Optional P C board of outdoor unit installation 38 7 3 2 Power peak cut control standard 40 7 3 3 Power peak cut control extended 41 7 3 4 Snowfall fan control 42 7 3 5 External master ON OF...

Page 3: ...unction for connecting of refrigerant and control lines 78 8 7 2 Function to start stop ON OFF indoor unit from outdoor unit 80 8 7 3 Error clearing function 85 8 7 4 Remote controller distinction function 87 8 7 5 Pulse motor valve PMV forced open close function in indoor unit 88 8 7 6 Pulse motor valve PMV forced function in outdoor unit 88 8 7 7 Solenoid valve forced open close function in outd...

Page 4: ...dure MCC 1639 166 11 2 Comp IPDU P C board replacement procedure MCC 1647 168 11 3 Fan IPDU P C board replacement procedure MCC 1597 170 11 4 Noise filter P C board replacement procedure MCC 1551 173 12 Exploded diagram parts list 175 10 Outdoor unit parts replacement methods 151 3 ...

Page 5: ...als who have been trained and is thus thoroughly acquainted with the knowledge 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...

Page 6: ...tric shock Work done at heights 50 cm or more Helmets for use in industry Transportation of heavy objects Shoes with additional protective toe cap Repair of outdoor unit Gloves to provide protection for electricians n o i t a n a l p x E n o i t a c i d n I DANGER Indicates contents assumed that an imminent danger causing a death or serious injury of the repair engineers and the third parties when...

Page 7: ... operate unit with grille removed Stop the unit before the servicing CAUTION High temperature 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 Refrigerant recovery during operation is prohibited CAUTION Do not clim...

Page 8: ...ition and contact a qualified service person Take steps to ensure that the power will not be turned on by marking out of service near the circuit breaker for instance until qualified service person arrives Continuing to use the air conditioner in the trouble status may cause mechanical problems to escalate or result in electric shocks or other failure Electric shock hazard When you access inside o...

Page 9: ...en transporting the air conditioner use a forklift and when moving the air conditioner by hand move the unit with 5 people When executing address setting test run or troubleshooting through the checking window on the electrical control box put on insulated gloves to provide protection from electric shock Otherwise you may receive an electric shock Do not touch the aluminum fin of the outdoor unit ...

Page 10: ...n the refrigerant will be mixed in the refrigerating cycle Failure to purge the air completely may cause the air conditioner to malfunction Do not charge refrigerant additionally If charging refrigerant additionally when refrigerant gas leaks the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the specified standa...

Page 11: ...and moreover if there is leak of refrigerant at connecting section of pipes the air is sucked and causes further abnormal high pressure resulted in burst or injury Check after reinstallation Only a qualified installer or qualified service person is allowed to relocate the air conditioner It is dangerous for the air conditioner to be relocated by an unqualified individual since a fire electric shoc...

Page 12: ...sure to use the company specified products for the separately purchased parts Use of non specified products may result in fire electric shock water leakage or other failure Have the installation performed by a qualified installer Do not supply power from the power terminal block equipped on the outdoor unit to another outdoor unit Capacity overflow may occur on the terminal block and may result in...

Page 13: ...04HTJ E MCY MHP0604HT E MCY MHP0604HTJ E MCY MHP0404HT TR MCY MHP0404HT A MCY MHP0504HT TR MCY MHP0504HT A MCY MHP0604HT TR MCY MHP0604HT A Complies with the provisions of the Machinery Directive Directive 2006 42 EC and the regulations transposing into national law NOTE This declaration becomes invalid if technical or operational modifications are introduced without the manufacturer s consent 11 ...

Page 14: ...hers do not mix in because pipes are affected by impurities such as water oxide scales oil etc Use the clean pipes Be sure to brazing with flowing nitrogen gas Never use gas other than nitrogen gas 4 For the earth protection use a vacuum pump for air purge 5 R410A refrigerant is azeotropic mixture type refrigerant Therefore use liquid type to charge the refrigerant If using gas for charging compos...

Page 15: ...refrigerant Unusable Use the Refrigerant charging balance Gas leak detector Checking gas leak Exclusive to R410A Vacuum pump Vacuum drying Usable if a counter flow preventive adapter is attached Vacuum pump with counter flow Vacuum drying R22 Existing article Flare tool Flare processing of pipes Usable by adjusting size Bender Bending processing of pipes R22 Existing article Refrigerant recovery d...

Page 16: ... way Cassette MMF AP H Floor Standing High Wall MMK AP MH H MML AP NH Console For details on these models read the owner s manuals that come with the indoor units 4HP 5HP 6HP Single phase 220V 50Hz MCY MHP0404HT C MCY MHP0504HT C MCY MHP0604HT C MCY MHP0404HT MCY MHP0504HT MCY MHP0604HT MCY MHP0404HTJ MCY MHP0504HTJ MCY MHP0604HTJ MCY MHP0404HT E MCY MHP0504HT E MCY MHP0604HT E MCY MHP0404HTJ E MC...

Page 17: ... 0 1 Y H M B R r e d a e h g n i h c n a r b 4 E 3 8 0 1 Y H M B R r e d a e h g n i h c n a r b 8 Model type Indoor unit capacity type Appearance 005 to 014 type E 2 6 3 0 V M P M B R 015 to 027 type E 2 0 9 0 V M P M B R 1 RBM BY55E t n i o j g n i h c n a r b e p a h s Y 16 ...

Page 18: ...cting port Liquid side connecting port Refrigerant pipe 30 29 445 476 Knockout for downward piping 54 port Air outlet port Air inlet Air inlet port 235 110 30 85 245 442 25 23 155 70 45 6 Drain hole Φ20 88 58 490 1235 130 159 R 6 5 9 52 9 52 15 88 15 88 19 05 9 52 9 52 9 52 19 05 15 88 15 88 100 159 R 5 0 255 305 134 120 R 6 0 16 16 16 390 Slit hole for piping 380 Center of gravity Center of gravi...

Page 19: ...16 3 Wiring diagram COMPRESSOR IPDU BOARD I F P C BOARD NOISE FILTER P C BOARD FAN IPDU BOARD 220 240V 50Hz 220V 60Hz MCY MHP HT A model is excluded 18 ...

Page 20: ... 2 RED WHI BLK BLK WHI RED CN502 WHI CN504 BLU P 1 4 5 2 3 1 3 TB1 CN05 T611 CN04 L CM L CM BLK RED POWER UpperSide SUPPLY LowerSide IPDU BOARD IPDU BOARD COMPRESSOR MCC 1551 CN01 CN02 CN04 CN03 RED 3 7 CN08 1 5 GRY GRY RED WHI P01 49C t BLU 4 3 2 4 1 3 2 1 4 3 2 1 4 3 2 1 WHI CN400 CN01 CN800 Service SWRT 1 4 3 2 1 SW12 SW17 34 2 SW07 1 4 23 SW13 1 2 4 3 SW09 1 34 2 2 SW14 1 4 3 2 SW10 1 34 CN30 ...

Page 21: ...ure SW 7 OFF 3 73MPa ON 2 9MPa ACB 4UB32W 20 C 80 C Ambient temp range Pipe temp sensor Tl 15A AC250V GDT250V15A Fuse MCC 1597 10A DC600V P C board FSBF10CH60BT Fan motor drive IPM MCC 1597 MCC 1551 Noise filter P C board 25A AC400V ADR47MH 30020R Line filter MCC 1551 AC220 240V EL12D1 0 M Power relay MCC 1647 13A AC500V MZ32 30RHAGD03EA PTC thermisitor MCC 1647 30 C 135 C Ambient temp range Pipe ...

Page 22: ... unit 4 way valve SV4 valve SV2 valve SV5 valve High pressure sensor Check joint High pressure Check joint Low pressure Low pressure sensor TS sensor TL sensor TD sensor High pressure SW PMV Pluse Motor Valve TE sensor TO sensor 21 ...

Page 23: ...arts layout in inverter assembly Fan IPDU P C board MCC 1597 Communication terminal block Interface P C board MCC 1639 Power supply terminal block Noise Filter P C board MCC 1551 Comp IPDU P C board MCC 1647 22 ...

Page 24: ... Australia A model Fan IPDU P C board MCC 1597 Communication terminal block Interface P C board MCC 1639 Power supply terminal block Noise Filter P C board MCC 1551 Comp IPDU P C board MCC 1647 Demand response P C board MCC 1653 Trans TT 02 2 R 23 ...

Page 25: ... 03 Sensor input PS sensor CN500 PD sensor CN501 PMV 1 output CN300 UART communication CN600 Dina doctor connecting terminal CN800 SW 30 For communication wire between outdoor unit and central remote controller SV 5 CN314 SV 4 CN312 SV 2 CN311 4 way valve output CN317 Power supply input CN400 Case thermo CN308 For communication wire between indoor and outdoor unit CN02 short CN10 connector When th...

Page 26: ...k CN201 Red Compressor output U phase UART communication CN851 Red Power supply Input Neutral CN05 Black and Red Power supply Input Reactor CN12 Red Power supply output Reactor CN11 Black Power supply output Reactor CN500 Black High pressure switch input CN511 Red Power supply Input DC280V Output CN21 White CN04 Black Power supply Input Live 25 ...

Page 27: ... motor IPDU MCC 1597 for upper fan and lower fan CN750 White Fan motor output Lower fan CN700 Blue Fan motor output Upper fan CN505 Red UART communication CN504 Blue UART communication CN502 White DC280 V input 26 ...

Page 28: ...ise filter MCC 1551 L01 Line Filter CN04 White Power supply input Neutral CN04 White Power supply output Neutral CN03 Black Power supply output Live CN08 White Power supply output CN01 Black Power supply input 27 ...

Page 29: ...ve SV5 Strainer PMV Strainer Sensor TL Liquid side packed valve Gas side ball valve Compressor Strainer Sensor TD 4 Way valve Sensor TS Solenoid valve SV4 Solenoid valve SV2 Capillary tube Check joint Muffler High pressure sensor Check joint Low pressure sensor Accumulator High pressure SW Heat exchanger 28 ...

Page 30: ... Green 1 Controls defrost in heating operation 2 Controls outdoor fan in heating operation TL Connector CN523 White 1 Detects under cool in cooling operation TO Connector CN507 Yellow 1 Detects outside temperature Pressure sensor High pressure sensor Connector CN501 Red 1 Detects high pressure and controls compressor capacity 2 Detects high pressure in cooling operation and controls the fan in low...

Page 31: ...tate or upon being turned off normally or shut down due to an abnormality 2 Outdoor fan control 1 Cooling fan control 1 Outdoor fan speed mode is controlled on the basis of measurements provided by the Pd pressure sensor 2 For a specified period after the start of cooling operation the outdoor unit controls outdoor fan speed mode on the basis of measurements provided by the Pd pressure sensor Avai...

Page 32: ...ion 5 Defrosting control reverse defrosting method 1 Defrosting commencement conditions During heating operation the cumulative duration of operation in which TE sensor temperature falls below frost formation temperature is measured and when this reaches 55 minutes defrosting control is introduced Just after startup or upon changeover from cooling to heating the target cumulative duration is 25 mi...

Page 33: ...s 2 8 MPa SV2 is closed 3 Termination conditions Shutdown thermo OFF defrosting operation or cooling operation The speed of the compressor rises to 82 rps or more 3 SV2 low pressure release control This control function is aimed at preventing a rapid fall in pressure during transient operation The control is always provided except during periods of stoppage or thermo OFF 1 Control details When Ps ...

Page 34: ...decreases and current release control values via the interface P C board The main control functions of the IPDU P C board are described below 1 Current release control To prevent inverter input current from exceeding the specified value output frequency is controlled with AC input current as detected by T611 mounted on the A3 IPDU P C board Current control values for various outdoor units are show...

Page 35: ... the error count is cleared 3 If the error count reaches 8 the error is confirmed as final The compressor stops when the compressor case thermostat is activated Whenever this condition occurs a 1 count is added to the system error count After a period of 5 minutes the compressor is reactivated and the error count cleared if the operation continues without further error for a period of 10 minutes o...

Page 36: ...se Motor Valve 1 When the power is turned on PMVs generate a tapping sound as they are initialized If this sound is not heard there is a possibility of faulty PMV operation However in a noisy environment it may simply be drowned out by ambient noise 2 Do not separate the actuator head section from any PMV during operation It may result in an inaccurate opening 3 When transporting relocating the se...

Page 37: ...eration priority given to the operation mode with the largest share of units in operation ON ON Priority indoor unit priority given to the operation mode of the specific indoor unit set up for priority operation 7 Applied control for outdoor unit 7 2 Priority operation mode setting Purpose characteristics This function is used when connecting a duct to the discharge port of an outdoor unit as part...

Page 38: ...me on so that the position of this unit can be confirmed 3 Use the button to select the CODE No 04 4 Use the button to select the SET DATA 0001 Priority set 0001 No priority set 0000 5 Push the button The setup is finished when the display changes from flashing to steady 6 Upon finishing the setup push the button This finalizes the setting When the button is pushed the display goes blank and the s...

Page 39: ...e interface P C board in the electrical box Use the supports to install the optional P C boards Wiring connections 1 Refer to the details on the wiring diagrams 2 Check that protective wires for preventing noise problems are in place 3 Fasten the external wires to the cable clamps Interface P C board Optional P C board Up to a total of two board TCB PCIN4E left side TCB PCDM4E right side TCB PCMO4...

Page 40: ...ontrol Enhanced Functions CN513 blue SW07 1 2 l o r t n o c n a f l l a f w o n S 3 CN509 black l o r t n o c F F O N O r e t s a m l a n r e t x E 4 CN512 blue 5 Night operation sound reduction control CN508 red l o r t n o c n o i t c e l e s e d o m n o i t a r e p O 6 CN510 white t u p t u o n o i t a r e p O r o r r E 7 CN511 green J20 Operation mode selection control forced choice CN510 whit...

Page 41: ...door unit has been removed Power peak cut control P C board SW1 SW2 L1 Interface P C board of outdoor unit N O 1 t i B 7 0 W S F F O 1 t i B 7 0 W S Power peak cut control ON signal received ON OFF ON 0 forced stop 60 capacity upper limit regulated Power peak cut control OFF signal received OFF ON OFF 100 normal operation 100 normal operation Outdoor unit L1 Display lamp suring power peak cut cont...

Page 42: ...nnecting a conductive load e g relay coil to the display relay load insert a surge killer CR for an AC power supply or a diode for preventing back electromotive force for a DC power supply on the bypass circuit Jumper wire J20 Input SW1 y a l e r r o t a c i d n I 1 t i B 7 0 W S 1 L N O 1 t i B F F O 1 t i B Cut 0 forced stop 60 capacity upper limit regulated 100 normal operation 100 normal opera...

Page 43: ...SW2 terminals simultaneously 2 Be sure to provide a contact for each terminal External signal No voltage pulse contact Terminal Input signal Operation COOL SW1 Snowfall fan control Turns on outdoor unit fan Normal operation Cancels control Terminal Input signal Operation COOL SW1 Turns on all indoor units HEAT SW2 Turns off all indoor units Outdoor unit COM Outdoor unit interface PCB Optional PCB ...

Page 44: ... reduction Position of noise measuring device 1 m from the front face of the set and 1 5 m above ground anechoic sound Terminal Input signal Operation COOL SW1 Night time control Normal operation Outdoor unit base unit Relative to maximum capacity Cooling Heating Model 0404 approx 85 approx 95 Model 0504 approx 80 approx 80 Outdoor unit COM Outdoor unit interface PCB Optional PCB Connection cable ...

Page 45: ...nits operating in a mode different from the selected operation mode can be changed by changing the status of a jumper wire J01 provided on the interface P C board of outdoor unit Jumper wire Description of intervention J01 connected factory default All indoor units operating in a mode different from the selected operation mode prohibited mode indoor units become non priority units thermostat OFF T...

Page 46: ...d K2 insert a surge killer CR for an AC power supply or a diode for preventing back electromotive force for a DC power supply on the bypass circuit Electrical Rating 220 240 VAC 10 mA or more 1 A or less 24 VDC 10 mA or more 1 A or less non conductive load C1 Connector cable 1 CN511 Connector on Interface side green K1 K2 Relays L1 Error indication Lamp L2 Operation indication Lamp OUTPUT1 Error o...

Page 47: ... C board DRM1 DRM2 DRM3 COM Connect the wiring to the demand P C board as shown in the figure above This model is valid only for demand response mode DRM1 Wires for indoor outdoor communication Outline of DRED wiring CN101 CN106 CN102 CN100 COM DRM1 DRM2 DRM3 L Trans former DRED Locally procured Power supply MCC 1653 DEMAND P C BOARD MCC 1551 NOISE FILTER P C BOARD U1 To central controller To indo...

Page 48: ...ssion connector CN104 CN105 CN106 DRC signal reception connector CN01 Transformer input connector CN101 Power supply protection fuse F100 250V 3 15A Power supply input connector CN100 Transformer output connector CN102 DB100 LED indicator D101 47 ...

Page 49: ...power supply is turned on Set up the addresses Test operation END Check basic items mainly the installation work Be sure to enter the check results in 8 2 checklist 1 and 2 This check is done after the power has been turned on Check that the refrigerant circuit system is turned on normally Start the address setup in the outdoor indoor units Note Operation does not start simply by powering on Carry...

Page 50: ...troller or optional devices If connect a relay connector CN10 to CN02 will connected communication line U1 U2 and U3 U4 If U1 U2 is connected to the U3 U4 refrigerant line address can not be set correctly k c e h C s m e t i k c e h c n i a M 1 Are the indoor and outdoor communication lines of the outdoor unit connected to the U1 U2 terminals 2 Relay connector CN10 which is mounted on the interfac...

Page 51: ...n off SW30 bit 2 of the outdoor unit for other refrigerant lines 8 4 3 Address setup procedure 5 Is the end terminal of the shield wire earthed 6 When the refrigerant line and the central control system of the DI SDI series are connected Are Network adapter TCB PCNT30TLE2 correctly connected When the DI SDI series operates with group twin or triple operation are the adapters connected to the heade...

Page 52: ...door units supplied collectively Is it grounded to earth Is the resistance sufficient 10 M M r e h g i h r o or higher V in 220 240 V 10 h t i w t n e i c i f f u s e g a t l o v r e w o p n i a m e h t s I Is the diameter of connecting pipe correct Is the branch kit correct Is the water drain of the indoor unit arranged so that it flows without accumulation Is the heat insulation of pipes suffici...

Page 53: ... g k P H r o o d t u o y b n o i t a s n e p m o C g k A h t g n e l e p i p y b t n a r e g i r f e r f o t n u o m a l a n o i t i d d A Corrective amount of refrigerant depending on the indoor units B kg g k C P H r o o d t u o y b n o i t a s n e p m o C Additional refrigerant charge amount at local site A B C kg A C B Unit 5 kg Unit 6 kg Additional amount of refrigerant pipe diameter on each ...

Page 54: ... Display check on the remote 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 Che...

Page 55: ... the 7 segment display B on the interface P C board of the outdoor unit in the system where the address is to be set up 4 Address setup start Confirm the items in 8 4 3 Address setup procedure and then set up the address according to the operation procedure Be careful to note that the setup operation may differ in group control and central control systems Note The address cannot be set up if switc...

Page 56: ...oup before setting addresses If you set the unit addresses of each line separately each line s header indoor unit is set separately In that case the CODE No L03 Indoor outdoor unit overlap is indicated as running starts Change the group address to make one unit the outdoor unit using wired remote controller d d A o t o g Single refrigerant line l o r t n o c l a r t n e c o N ress setting procedur...

Page 57: ...ot use a same address as another system refrigerant line or a custom side Interface P C board on the outdoor unit Line address switches on the outdoor interface P C board switch on switch off Example Controlling 2 or more refrigerant lines as a group System wiring diagram Outdoor Indoor Indoor Indoor Indoor Outdoor Remote controller Group control Line address Not used for setup of line address do ...

Page 58: ... i h s a l f s t r a t s n o i t a c i d n i e h t r e t f A t i l s n i a m e r d n a s p o t s g n i h s a l f e h t n e h W 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 outdoor units connected to the same central control except the un...

Page 59: ...entral control address refer to the installation manuals of the central control devices 7 segment display Outdoor unit interface P C board SW30 Outdoor units are connected to the same central control except the outdoor unit with the smallest line address number 58 ...

Page 60: ...ndoor 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 Line system address 1 1 2 2 3 1 2 1 2 1 s s e r d d a t i n u r o o d n I 0 2 1 0 0 s s e r d d a p u o r G 2 U 1 U B A 2 U 1 U 2 U 1 U B A B A A 2 U...

Page 61: ...nnect a wired remote controller to the target unit directly before address setting Pair the indoor unit to set and the remote controller one to one Turn on the power 1 Push and hold the and buttons at the same time for more than 4 seconds LCD starts flashing Line system address 1 1 1 2 2 Indoor unit address 1 2 3 1 2 Group address 1 Header unit 2 Follower unit 2 Follower unit 2 Follower unit 2 Fol...

Page 62: ...dresses using the 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 outdoor unit of each line as below Set a line address for the outd...

Page 63: ...it while the units are running 1 Push the button if the units stop 2 Push the button left side of the button A unit numbers is indicated on the LCD it will disappear after a few seconds The indicated number shows the line 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 ea...

Page 64: ...for central control Execute it while the units are stopped You can check indoor unit addresses and positions of the indoor units in a single refrigerant line When an outdoor unit is selected the indoor unit numbers of the refrigerant line of the selected unit are indicated one after another and the fan and louvers of the indicated indoor units are activated 1 Push and hold the TIME and buttons at ...

Page 65: ...If 2 or more indoor units are controlled in a group the first indicated UNIT No is that of the head unit 2 Push the button left side of the button repeatedly to select an indoor unit 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...

Page 66: ...it 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 and buttons at the same time for more than 4 seconds At first the line 1 and CODE No Address Change are indicated on the LCD display 2 Push left side of the button and buttons repeatedly to select a line address 3 Push the button The address of one of the indoo...

Page 67: ...a wired remote controller Set the line address indoor unit address and group address to 0099 using a wired remote controller For the setting procedure refer to the address setting procedures using the wired remote controller on the previous pages Method 2 Clearing all the indoor unit addresses on a refrigerate line at once from the outdoor unit 1 Turn off the refrigerant line to reset to the facto...

Page 68: ...mpleted successfully If the 7 segment display indicates A d n G the outdoor unit may still connected with other refrigerant lines Check the connection of the relay connectors between U1 U2 and U3 U4 NOTE Take care to carry out the procedure above correctly otherwise addresses in other refrigerate lines may also be cleared 5 Set the addresses again after finishing the clearance s e s s e r d d a e ...

Page 69: ...ne for which an address is to be set up After approximately 1 minute check that U 1 is displayed on the 7 segment display 4 Execute the following operation on the interface P C board of the outdoor unit AUTO1 AUTO2 AUTO3 AUTO9 is counted and displayed on the 7 segment display 5 When U 1 is displayed on the 7 segment display the setup operation finished Turn off the indoor outdoor power 6 Return to...

Page 70: ...istance SW30 bit 2 of the outdoor unit with the smallest line address number in the central control turned on 3 Is the terminal resistance SW30 bit 2 of the outdoor unit except for the line with the smallest central control line address turned off Line address 4 Are addresses in the line address SW13 SW14 not duplicated in each refrigerant line Central remote controller 4 Indoor unit To other refr...

Page 71: ...d by outdoor side Check SW30 bit 2 of the outdoor unit No connection between multiple refrigerant lines SW30 bit 2 is on Check the communication connector between indoor and outdoor unit Transmission circuit error at the interface side P C board failure Replace the interface P C board E06 After address setup communication from all the indoor units is interrupted under the condition that a normal o...

Page 72: ... respond to the indoor remote controller Modify the wiring Line address and indoor address are not set the unit that does not respond to the indoor remote controller Set up the address The power of the outdoor unit of the group is not turned on in indoor group control the unit that does not respond to the indoor remote controller Turn on the power Group address is set to the follower unit for indi...

Page 73: ...operation from an indoor remote controller The indoor remote controller is not connected with wire Miswiring of the indoor remote controller Using the main indoor remote controller connected to a group start a test operation specify the unit that is not operating the unit not connected to the group and then check the wiring Indoor remote controller communication circuit error If 220 V is incorrect...

Page 74: ...n the remote controller remove the cause of the error referring to Check code and check position displayed on remote controller and outdoor unit Select the Fan operating mode Is air discharged from the discharge port of the indoor unit Check the indoor fan fan motor and fan circuit Is the sound normal Check the postions around the fan YES YES Normal Check every indoor unit in turn 73 ...

Page 75: ...e unit enters test operating mode 2 Push the button 3 Using the Select Mode button select the COOL or HEAT operating mode Do not use an operating mode other than COOL or HEAT Temperature adjustment is unavailable during test operation Error is detected as usual 4 When the test operation has finished push the button to stop the operation The same display as in procedure 1 appears in the display sec...

Page 76: ...eard and the operation changes to a forced cooling operation After approx 3 minutes a cooling operation starts forcedly Check cool air starts blowing If the operation does not start check wiring again To stop a test operation push Temporary button once again approx 1 second Check wiring piping of the indoor and outdoor units in forced cooling operation Start Push Temporary operation button The ope...

Page 77: ...ter powering on or stopping operation Note After powering on it may require up to 10 minutes to start the operation due to the initial communications of the system Check the operating status of the compressor Check the direction of the louver 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 ma...

Page 78: ...r to 2 This compressor is driven with a 4 pole motor The value of the compressor frequency rps measured with a clamp meter at the compressor lead line is two times the rotation count rps of the compressor The temperature of the indoor heat exchanger TC indicates TCJ sensor temperature when cooling and TC2 sensor temperature when heating respectively 2 Criteria for operating pressure Criteria after...

Page 79: ...ches with the expected system capacity 7 segment display System horsepower 7 segment display No of connected outdoor units No of units with cooling thermo ON 7 segment display No of connected outdoor units No of units with heating thermo ON 7 segment display Cooling Heating Check No of indoor units No of units with cooling thermo ON Set the rotary switches SW01 SW02 SW03 on the interface P C board...

Page 80: ... push switch SW05 on the interface P C board of the outdoor unit for 2 seconds or more The indoor address in which error is being detected is displayed on 7 segment display B If there are multiple indoor address in which error is being detected they are successively exchanged and displayed When SW05 is turned on again the display returns to display of No of units 7 segment display Address display ...

Page 81: ...econds Batch stop Stops all the connected indoor units collectively Setup Set SW01 SW02 SW03 to 2 7 1 and press SW05 Release Return SW01 SW02 SW03 to 1 Section A C H Section B 00 00 is displayed on Section B for 5 seconds 4 Individual start Starts the specified indoor unit Notes The contents follow to the setup of remote controller The other indoor units keep the status as they are Setup Set SW01 ...

Page 82: ... 2 seconds or more Test run is displayed on the remote controller of the indoor unit to be operated Check that C is displayed on 7 segment display B on the interface P C board of the outdoor unit Return SW01 SW02 SW03 on the interface P C board of the outdoor unit to 1 1 1 or press the push switch SW05 for 2 seconds or more Start Operation check Stop End NOTE The test operation returns to the norm...

Page 83: ... 2 seconds or more Test run is displayed on the remote controller of the indoor unit to be operated Check that H is displayed on 7 segment display B on the interface P C board of the outdoor unit Start Operation check Stop End Return SW01 SW02 SW03 on the interface P C board of the outdoor unit to 1 1 1 or press the push switch SW05 for 2 seconds or more NOTE The test operation returns to the norm...

Page 84: ... operation return the rotary switches SW01 SW02 SW03 on the interface P C board of the outdoor unit to 1 1 1 Start Stop End If an error is already displayed with SW01 SW02 SW03 being 1 1 1 return the status to normal one according to troubleshooting and then execute a test operation The unit which is not given with priority by heating priority control cooling priority control and selection of cool...

Page 85: ...atch the rotary switches on the interface P C board of the outdoor unit to the following table 7 segment display Address display of corresponding indoor unit Press the push switch SW04 on the same board for 2 seconds or more If pressed continuously for 10 seconds or more the operation changes to the individual test operation 7 segment display Address display of corresponding indoor unit 11 is disp...

Page 86: ...hange the mode to service monitor mode by pushing buttons simultaneously for 4 seconds or more 2 Using buttons set CODE No to FF 3 The display in Section A in the following figure is counted with interval of 5 seconds as 0005 0004 0003 0002 0001 0000 When the count arrives 0000 the error is cleared However counting from 0005 is repeated on the display 4 When button is pushed the status returns to ...

Page 87: ... 3 Clearing error by resetting power This function is provided to clear error in a system by resetting the power of all the outdoor and the indoor units As same as the clearing method by the interface P C board errors of both the outdoor and the indoor units are once cleared and error detection is performed again Method 1 Be sure to reset power of both the outdoor and the indoor units 2 Turn on th...

Page 88: ...lows Set SW01 SW02 SW03 to 2 4 1 Press the push switch SW04 on the same board for 2 seconds or more 7 segment display Checking display of the connected remote controller flashes Press the push switch SW05 on the interface P C board of the outdoor unit for 2 seconds or more Operation Check the connected remote controller End Other end conditions 1 10 minutes has passed 2 SW01 SW02 or SW03 changed t...

Page 89: ...ing degree adjustment of pulse motor valve PMV1 By setting the switch can be fixed 2 minutes open fully open half and close fully the opening of the pulse motor valve Operation Open fully Set the switches SW01 SW02 SW03 on the interface P C board of the outdoor unit to 2 1 8 and press SW04 for 2 seconds or more 7 segment display appears as below P View PMV opening degree the Open fully of this mod...

Page 90: ...ch solenoid valve is as shown below NOTE 1 Display in 7 segment display B is exchanged just when the number of SW02 has been changed on the other hand the solenoid valve output is exchanged when SW02 has been kept with the same number for 5 seconds or more NOTE 2 The mark O in the table indicates that the corresponding solenoid valve is forcedly turned on NOTE 3 The mark in the table indicates tha...

Page 91: ...ed in 7 segment display A keep pressing the switch SW04 for 2 seconds or more 3 When 31 is displayed in 7 segment display B the fan starts operation Max mode operation 4 After that by changing the setup number of the switches SW02 and SW03 7 segment display B and the fan mode are changed Mode output pattern of the fan is as follows Clear This function is cleared by one of the following operations ...

Page 92: ...04 on the interface P C board for 1 second or more The mode changes to the TO sensor value fix manual mode 3 As shown in the following table TO sensor value can be fixed by setting the rotary switch SW02 on the interface P C board Clear Return SW01 SW02 SW03 on the interface P C board in the outdoor unit to 1 1 1 NOTE If operated with TO sensor fixed by this function the system control operation o...

Page 93: ...n o i t c n u f n o i t a r e p o t s e t g n i l o o C C 5 n o i t c n u f n o i t a r e p o t s e t g n i t a e H H 6 n o i t c n u f F F O N O p o t s t r a t s e v i t c e l l o c r o o d n I H C 7 E 6 1 r Error clear function 1 16 3 H r Solenoid valve forced open close function 2 4 5 F d Fan forced operation function 2 15 t o Outside temperature sensor manual adjustment function 16 1 16 1 0 1...

Page 94: ...a 2 00 Room temperature During control 1 C 0024 24 C 01 Room temperature Remote controller 1 C C 1 A T e r u t a r e p m e t n o i t c u s r o o d n I 2 0 C 1 J C T e r u t a r e p m e t l i o c r o o d n I 3 0 C 1 2 C T e r u t a r e p m e t l i o c r o o d n I 4 0 C 1 1 C T e r u t a r e p m e t l i o c r o o d n I 5 0 06 Indoor discharge temperature TF 1 1 C s l p 0 0 5 1 0 5 1 0 s l p 0 1 1 g ...

Page 95: ...O N 1 A compressor would not start Could it just be the 3 minute delay period 3 minutes after compressor shutdown Could it just be the air conditioner having gone thermo OFF Could it just be the air conditioner operating in fan mode or put on the timer Could it just be the system going through initial communication 2 An indoor fan would not start Could it just be cold air discharge prevention cont...

Page 96: ...se mode Description DRM1 Compressor off e l b a l i a v a t o N 2 M R D DRM3 Not available Each condition is within the operating condition but the compressor does not work Operating conditions of air conditioner Diagnosis when compressor does not work Disconnect the connecting wiring of DRED Remove wiring of CN106 on DRED P C board Normal Demand operation or DRED is failed Inverter Assy is failed...

Page 97: ...ard Exchange of Demand P C board Fuse F100 is melted NO NO YES Exchange of transformer exchange of Demand P C board YES Exchange of transformer YES Short circuit is found between 1 and 2 pins of connector connected to CN102 of transformer Take off wiring of CN102 Short circuit is found between and of DB100 NO 96 ...

Page 98: ...on between indoor header and follower unit Periodic communication between indoor header and follower units cannot be maintained F01 ALT Indoor heat exchanger temperature sensor TCJ error Heat exchanger temperature sensor TCJ has been open short circuited F02 ALT Indoor heat exchanger temperature sensor TC2 error Heat exchanger temperature sensor TC2 has been open short circuited F03 ALT Indoor hea...

Page 99: ...te controllers have been set as master remote controller in two remote controller control alarm and shutdown for outdoor unit and continued operation for follower unit Check code Display of receiving unit Typical fault site Description of error TCC LINK central control Outdoor 7 segment display Indicator light block Sub code Flash C05 No indication when main remote controller also in use Faulty ce...

Page 100: ...or unit from other refrigerant line is detected while indoor automatic address setting is in progress T L A 4 0 F 4 0 F Outdoor discharge temperature sensor TD error Outdoor discharge temperature sensor TD has been open short circuited T L A 6 0 F 6 0 F Outdoor heat exchanger temperature sensor TE error Outdoor heat exchanger temperature sensors TE have been open short circuited T L A 7 0 F 7 0 F ...

Page 101: ...one refrigerant line due to detection of overflow detected by indoor unit T L A 3 1 P 3 1 P Outdoor liquid backflow detection error State of refrigerant cycle circuit indicates liquid backflow operation P15 01 TS condition 02 TD condition n o i t c e t e d k a e l s a G T L A 5 1 P Outdoor suction temperature sensor TS detects sustained and repeated high temperatures that exceed standard value T L...

Page 102: ...tion circuit detects overcurrent H02 H02 Compressor error lockup Compressor lockup is detected H03 H03 Current detection circuit error Abnormal current is detected while inverter compressor is turned off T L A 7 0 P 7 0 P Heat sink overheating error Temperature sensor built into IGBT TH detects overheating P22 0 IGBT circuit 1 Position detection circuit error 3 Motor lockup error E Inverter DC vol...

Page 103: ...rocedure 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 error history This is accompanied by the indoor unit No to which the error history is related and a check code 2 To check other error history items press the button...

Page 104: ...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 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 alternately During this procedure the temperature setting feature is unavailable 4 To check other error history items push...

Page 105: ... setting E16 Too many indoor units connected overloading E20 Detection of refrigerant piping communication error during automatic address setting E31 IPDU communication error P01 Indoor AC fan error P10 Indoor overflow error P12 Indoor DC fan error P13 Outdoor liquid backflow detection error P03 Outdoor discharge TD temperature error P05 Open phase power failure Inverter DC voltage Vdc error P07 O...

Page 106: ...down of outdoor unit L03 Duplicated indoor group outdoor unit L05 Duplicated priority indoor unit as displayed on priority indoor unit L06 Duplicated priority indoor unit as displayed on indoor unit other than priority indoor unit L07 Connection of group control cable to stand alone indoor unit L08 Indoor group address not set L09 Indoor capacity not set L04 Duplicated outdoor refrigerant line add...

Page 107: ...r Check remote controller and network adaptor wiring E04 Indoor unit Indoor outdoor communication circuit error detected at indoor end Stop of corresponding unit Indoor unit is not receiving signal from outdoor unit Check order in which power was turned on for indoor and outdoor units Check indoor address setting Check indoor outdoor tie cable Check outdoor termination resistance setting SW30 Bit ...

Page 108: ...rm No overloading detected setting No overloading detected setting method Turn on SW09 Bit 2 on I F P C board of outdoor unit More than 13 indoor units are connected Check capacities of indoor units connected Check combined HP capacities of indoor units Check HP capacity settings of outdoor units Check No of indoor units connected Check for defect in outdoor P C board I F E18 Indoor unit Error in ...

Page 109: ...or defect in outdoor P C board I F F07 F07 I F TL sensor error All stop Sensor resistance is infinity or zero open short circuit Check connection of TL sensor connector Check resistance characteristics of TL sensor Check for defect in outdoor P C board I F F08 F08 I F TO sensor error All stop Sensor resistance is infinity or zero open short circuit Check connection of TO sensor connector Check res...

Page 110: ...ct in SV4 circuit F24 F24 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 Check connection of Pd sensor connector Check for defect in Pd sensor Check for defect in outdoor P C board I F F29 Indoor unit Other indoor error Stop of corresponding unit Indoor P C board does not operate normally Check for defect...

Page 111: ...g status of indoor PMV Check refrigerant piping for clogging Check operation of outdoor fan during heating Check for insufficiency in refrigerant quantity L03 Indoor unit Duplicated indoor outdoor unit Stop of corresponding unit There is more than one outdoor unit in group Check indoor addresses Check for any change made to remote controller connection group individual since indoor address setting...

Page 112: ...unit Signal is present at external error input terminal CN80 for 1 minute When external device is connected to CN80 connector 1 Check for defect in external device 2 Check for defect in indoor P C board When external device is not connected to CN80 connector 1 Check for defect in indoor P C board L31 I F Extended IC error Continued operation There is part failure in P C board I F Check outdoor P C...

Page 113: ...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 system possible cause of air flow reduction Check opening status of indoor PMV Check indoor outdoor communication line for wiring error Check for faulty operation of ch...

Page 114: ...orresponding unit Motor speed measurements continuously deviate from target value Overcurrent protection is activated Check connection of fan connector and wiring Check for defect in fan motor Check for defect in indoor P C board Check impact of outside air treatment OA P13 P13 I F Outdoor liquid backflow detection error All stop Check full close operation of outdoor PMV Check for defect in Pd or ...

Page 115: ...ration Check for defect in main body of 4 way valve Check for coil defect in 4 way valve and loose connection of its connector Check resistance characteristics of TS and TE sensors Check output voltage characteristics of Pd and Ps pressure sensors Check for wiring error involving TE and TL sensors P20 P20 I F Activation of high pressure protection All stop Pd sensor detects pressure equal to or gr...

Page 116: ...DC voltage higher or lower than the specified value is detected Check power voltage of the main power supply Check for defect in fan IPDU P C board Check connection of fan IPDU P C board P26 P26 IPDU IGBT IPM short circuit protection error All stop Overcurrent is momentarily detected during startup of compressor Check connector connection and wiring on A3 IPDU P C board Check for defect in compres...

Page 117: ...central control communication line Check termination resistance setting Check power supply for devices at other end of central control communication line Check defect in P C boards of devices at other end of central control communication line 2 1 C General purpose device I F Blanket alarm for general purpose device control interface Continued operation Error signal is input to control interface fo...

Page 118: ...connector tighten it with a pair of pliers etc before connecting the lead How to Check Resistance of Compressor Winding 1 Turn off the power supply 2 Remove compressor leads from the compressors 3 With compressor check the phase to phase winding resistances and winding to outdoor cabinet resistance using a multimeter Earth fault It is normal if the winding to outdoor cabinet resistance is 10 M or ...

Page 119: ...nication is down However the code is indicated on the compliant manager of TCC LINK Check code Check code name Cause Is the inter unit wire of remote controllers A B normal No Yes Correct inter unit cable of Connect the wiring properly remote controller Correct connector connection and check circuit wiring Is there no disconnection or connector contact error on harness out of terminal block of ind...

Page 120: ...period from the indoor unit which has used to send signals normally E06 is displayed No Was power turned on in order of indoor unit outdoor unit Check code Check code name Indoor Outdoor communication circuit error Detected at indoor side Cause 1 Power of outdoor unit was firstly turned on 2 Connection error of communication line between indoor and outdoor 3 End terminal resistance setup error on ...

Page 121: ...inal resistance of outdoor unit normal Correct communication line Check code Check code name Cause Indoor Outdoor communication circuit error Detected at outdoor side 1 Indoor outdoor communication end terminal resistance setup error 2 Indoor outdoor communication connection error Yes Is inter unit wire U1 U2 between indoor and outdoor short circuited Yes No No Yes Yes Yes No No Is connection of i...

Page 122: ... error Is there any trouble on power line No Yes Check remote controller P C board Failure Replace Check power voltage Improve the line condition Eliminate noise etc Check code Check code name Cause Automatic address start error 1 Starting automatic addressing of indoor units during automatic addressing in another refrigerant line Sub code 01 2 Starting automatic addressing of outdoor units during...

Page 123: ...r of total connected indoor units 3 Incorrect setup of indoor units power Sub code 00 Capacity over 01 number of connected units No Yes No Is backup operation of our outdoor unit being set up Is No of connected indoor units correct Is setup of indoor units HP correct Is total capacity of connected indoor units within 130 For a service P C board check outdoor HP setup Set up jumper 9 10 11 and 12 C...

Page 124: ...cation line I F P C board error I F P C board error Sub code See Indoor unit temperature sensor characteristics on 9 7 Sensor characteristics See Indoor unit temperature sensor characteristics on 9 7 Sensor characteristics Check code e s u a C e m a n e d o c k c e h C Indoor TCJ sensor error No Yes TCJ sensor Open Short Is TCJ sensor connector CN102 Red on indoor P C board normally connected No Y...

Page 125: ...temperature sensor characteristics on 9 7 Sensor characteristics If sensor is normal replace outdoor I F P C board This error code means detection of Open Short of TO sensor Check disconnection of circuit for connection of connector TO sensor CN507 Yellow and characteristics of sensor resistance value See Outdoor unit temperature sensor characteristics on 9 7 Sensor characteristics If sensor is no...

Page 126: ...fferent an error of pressure sensor itself is considered If 2 and 3 are different check interface P C board Value can be confirmed by 7 segment display function on outdoor I F P C board Pd SW01 02 03 1 1 2 Ps SW01 02 03 1 2 2 Are installed positions of TE sensor and TL sensor correct Are connection of TE sensor connector and TL sensor connector normal Correct installed positions of TE sensor and T...

Page 127: ...sensor If the sensor is normal replace outdoor I F P C board Connector CN500 White Is not refrigerant bypassed from discharge to suction of 4 way valve Cause Check code name Check code Indoor other error Indoor P C board error Check power voltage and line Correct power line Check external noise etc No Yes Is there any trouble of outdoor unit power supply This error is detected during operation of ...

Page 128: ...stance between windings It is normal if there are 0 1 to 0 4 2 Check insulation between outdoor cabinet and terminal It is normal if there are 10 M or more Cause Check code name Check code Compressor error Lock 1 Outdoor unit power line error 2 Compressor circuit system error 3 Compressor error 4 Refrigerant stagnation in compressor shell 5 A3 IPDU P C board error Is power voltage of outdoor unit ...

Page 129: ...o Yes Open service valves fully Are outdoor PMV normal 1 Connector connection 2 Wiring 3 Coil 4 Valve body 5 I F P C board No Yes Repair case thermo circuit Connector CN300 CN301 White No Yes Correct SV4 SV5 valve circuits SV4 valve Connector CN312 Blue Does not refrigerant bypass from discharge to suction through 4 way valve Yes No Check 4 way valve Is not refrigerant bypassed from discharge to s...

Page 130: ...r error 6 Indoor outdoor PMV clogging 7 Indoor outdoor heat exchanger clogging 8 Refrigerant shortage e s u a C e m a n e d o c k c e h C e d o c k c e h C Are service valves of gas and liquid pipe of outdoor unit fully opened Are characteristics of low pressure sensor normal Are SV2 and SV4 circuits normal Is any indoor unit in a different line connected In cooling season go to A In heating seaso...

Page 131: ... C e m a n e d o c k c e h C e d o c k c e h C Indoor group address unset Indoor unit address is unset No Yes Are powers of all the indoor units turned on Disconnect connectors between U1 U2 and U3 U4 Clear addresses Refer to Address clear Re execute address setup Refer to Address setup Note This code is displayed when the power is turned on at the first time after installation Because the address...

Page 132: ...uation between 4 and 5 pins of CN600 on I F P C board Measurement by tester DC0 to 5 V 5 pin GND Is there voltage fluctuation between 3 and 5 pins of CN600 on I F P C board Measurement by tester DC0 to 5 V 5 pin GND Replace the troubled IPDU P C board No Correct connection of connector I F P C board error Replace communication line I F P C board error Set the model data No No No Yes Yes Yes No Yes...

Page 133: ...teristics on 9 7 Sensor characteristics e s u a C e m a n e d o c k c e h C e d o c k c e h C Discharge temp TD error 1 Service valve of outdoor unit closed 2 Outdoor PMV error 3 TD sensor error 4 Refrigerant shortage clogging of refrigerant piping 5 4 way valve error 6 SV4 SV5 circuit leakage misinstallation Are service valve of gas and liquid sides fully opened Is outdoor PMV normal 1 Connector ...

Page 134: ...Reset power supply and start a test operation corresponded to the season Is outdoor PMV normal 1 Connector connection 2 Cabling 3 Coil 4 Valve body 5 Outdoor I F P C board Yes Yes Yes No No Yes No Yes No No No No No Yes No Yes Yes Yes Yes Yes Yes No No C A Is SV2 circuit normal Is SV4 circuit normal Does heating indoor fan normally operate Are connector connection condenser fan motor and fan norma...

Page 135: ...s u a C e m a n e d o c k c e h C e d o c k c e h C Heat sink overheat error 1 Power voltage error 2 Outdoor fan system error 3 Heat sink installation error 4 Clogging of the cooling duct for the heat sink 5 A3 IPDU P C board error Is wiring of A3 IPDU normal Is power voltage normal Is indoor fan normal Yes Yes No No No Yes Correct power line Correct wiring to compressor or connector connection Ch...

Page 136: ...30 to 70 AP036 to AP056 Approx 20 to 50 Wall and concealed duct types Approx 15 to 35 Is not grounded between cabinet and 1 3 5 Should be 10 M or more 2 Check resistance value of fan motor position detective circuit Is not winding 1 Yellow lead to 4 Pink lead opened shorted Resistance should be 5 to 20 k 3 Check fan motor position detective signal Measure voltage with tester between 1 and 5 of CN3...

Page 137: ... Refrigerant shortage clogging pipe breakage Replace TS sensor Check and replace 4 way valve and coil Repair SV4 SV5 valve circuit Check there is no clogging and pipe breakage and then recharge refrigerant Coil valve body disconnection of wire etc e s u a C e m a n e d o c k c e h C e d o c k c e h C Outdoor liquid back detection error 1 Outdoor PMV error 2 Pd sensor Ps sensor error 3 Leakage at a...

Page 138: ...0 C or lower Correct connector connection 4 way valve coil CN317 Sensor error Sensor error Correct connector connection TS sensor CN505 TE sensor CN520 TL sensor CN523 If no error occurs in the test operation restart operation No Yes See Outdoor unit temperature sensor characteristics on 9 7 Sensor characteristics e s u a C e m a n e d o c k c e h C e d o c k c e h C Gas leak detection TD conditio...

Page 139: ...k or coming off Is outdoor PMV normal 1 Connector connection 2 Wiring 3 Coil 4 Valve body 5 Outdoor I F P C board Is there any interference of heat exchanging of outdoor unit 1 Heat exchanger clogging 2 Air short circuit Is SV4 circuit normal Is check valve of main discharge pipe normal Refrigerant overcharge clogging pipe breakage abnormal overload Yes Yes Yes Yes Yes Yes Yes No No No Yes No No N...

Page 140: ... k c e h C e d o c k c e h C Is wire connector connection on fan IPDU P C board normal Is not outdoor fan motor locked Is the resistance of the motor s winding wire normal Is sub code of outdoor I F P C board 0 Is there no problem such as stuffing or blast blowing to discharge port of outdoor fan Check fan IPDU Yes No Yes No No No Yes No Yes Yes Correct wire connector connection Replace motor Repl...

Page 141: ...d Failure Replace No No No No Yes Yes Yes Yes Check and correct circuit and cables such as wiring to compressor etc Compressor error Replace Compressor error Replace Compressor error Replace Other indoor error Group follower unit error Another indoor unit in the group is abnormal When the outdoor unit of the group detected error E03 L03 L07 or L08 the follower unit of the group displays P31 error ...

Page 142: ...heck the 7 segment display The check code is displayed in the right hand section of the 7 segment display B U1 OOO OOO Check code To check the check code set the rotary switches SW01 SW02 SW03 to 1 1 1 If there is a sub code the display alternates between the check code OOO 3 seconds and the sub code OOO 1 second 2 Check the check code and follow the applicable diagnostic procedure 3 Perform check...

Page 143: ...A B 9 A B 10 Refrigerant oil recovery operation A Oil recovery in cooling C1 Normal C B Refrigerant recovery in heating H1 Normal H 11 Automatic addressing A Ad B During automatic addressing FF Normal 12 Power pick cut A dU B Normal During 50 90 capacity operation _50 _90 While control is based on BUS line input E50 E90 13 B A s u t a t s l o r t n o c l a n o i t p o s y a l p s i D t u p n i d r...

Page 144: ... Normal defrosting J B 4 Outdoor unit HP capacity A 4 4HP 5 5HP 6 6HP B HP 5 Compressor operation command Operation data of compressor is displayed Data display with hexadecimal notation 6 Outdoor fan mode A FP B Mode 0 to 31 0 to 31 7 A B 8 A B 9 4 way valve output data Displays control output status of solenoid valve A B 1 H N O e v l a v y a w 4 0 H F F O e v l a v y a w 4 10 5 0 2 1 5 1 2 0 SV...

Page 145: ...version data Converted PL pressure MPaG is displayed in decimal format P L 4 TD sensor data Temperature sensor reading C is displayed in decimal format Letter symbol and data are displayed alternately for 1 second and display for 3 seconds respectively Data with negative value is displayed as Letter symbol t d Data 5 TS sensor data Letter symbol t S Data 6 TE sensor data Letter symbol t E Data 7 T...

Page 146: ...e d y a l p s i D 3 0 W S 2 0 W S 1 0 W S 4 1 16 1 4 Indoor BUS communication signal receiving status B Upon receiving signal 1 Other times 5 Indoor check code B No check code 6 Indoor HP capacity B 0 6 to 6 0 HP 0 6 to 6 0 7 Indoor request command S code operation mode B represents mode COOL C HEAT H FAN F OFF S represents S code 0 to F 8 Indoor PMV opening data B D 30 1500pls 3 150 isplayed in d...

Page 147: ...r above Temperature C Temperature C Resistance k 20 101 7 15 76 3 10 57 7 5 44 0 33 8 26 1 20 4 15 16 0 20 12 6 25 10 0 30 8 0 35 6 4 40 5 2 45 4 2 50 3 5 55 2 8 60 2 3 65 1 9 70 1 6 75 1 4 80 1 2 Temperature C Resistance k 159 2 124 5 10 98 1 15 77 8 20 62 1 25 49 9 30 35 40 26 7 45 22 0 50 18 1 55 15 0 60 12 5 65 10 4 70 8 8 75 7 4 80 6 3 85 5 3 90 4 6 95 3 9 100 3 4 105 2 9 110 2 5 115 2 2 120 ...

Page 148: ...Ps Input output name Lead wire color Input output name Lead wire color 1 OUTPUT White 2 OUTPUT White 3 GND Black GND Black 4 5 V Red 5 V Red High pressure side Pd Low pressure side Ps 0 5 4 3 V 0 3 73 MPa 0 5 3 5 V 0 0 98 MPa High pressure side output voltage V Low pressure side output voltage V Pressure MPa Pressure MPa Indoor TA sensor Resistance kȍ Temperature C Temperature C Resistance kȍ 147 ...

Page 149: ...tance kȍ Resistance kȍ 10 C or below Resistance kȍ 10 C or above Temperature C Indoor TC1 sensor Resistance kȍ 10 C or below Resistance kȍ 10 C or above Temperature C Indoor TC2 and TCJ sensors Temperature C Resistance kȍ 148 ...

Page 150: ...2 38 9 0 43 0 00 0 0 1 43 0 91 9 3 2 42 1 89 19 2 3 42 2 86 29 2 4 41 3 84 39 1 0 45 0 00 0 0 1 45 0 93 9 5 2 44 1 90 19 4 3 44 2 88 29 4 4 43 3 86 39 3 0 47 0 00 0 0 1 47 0 95 9 6 2 46 1 92 19 6 3 46 2 90 29 6 4 45 3 88 39 5 0 49 0 00 0 0 1 48 0 97 9 8 2 48 1 94 19 8 3 48 2 92 29 8 4 47 3 90 39 7 0 51 0 01 0 1 1 50 0 99 10 0 2 50 1 96 20 0 3 50 2 94 30 0 4 49 3 92 39 9 0 53 0 03 0 3 1 52 1 00 10 ...

Page 151: ...43 0 00 0 0 1 43 0 30 3 1 2 42 0 63 6 4 3 42 0 95 9 7 4 41 1 28 13 0 0 45 0 00 0 0 1 45 0 31 3 2 2 44 0 64 6 5 3 44 0 96 9 8 4 43 1 29 13 1 0 47 0 00 0 0 1 47 0 32 3 2 2 46 0 64 6 5 3 46 0 97 9 9 4 45 1 29 13 2 0 49 0 00 0 0 1 48 0 32 3 3 2 48 0 65 6 6 3 48 0 97 9 9 4 47 1 30 13 2 0 51 0 00 0 0 1 50 0 33 3 3 2 50 0 65 6 7 3 50 0 98 10 0 4 49 1 31 13 3 0 53 0 01 0 1 1 52 0 34 3 4 2 52 0 66 6 7 3 52...

Page 152: ...inal block 5 Remove the upper panel screws M4 x 10 7 Front panel lower Front panel upper Front panel lower screws 4 positions Front panel upper screws 2 positions Only a European model 1 Perform 1 from 3 of Step 1 remove the front cover screws M4 x 10 3 2 Remove the switch cover screw M4 x 10 1 2 Attachment 1 Mount the upper panel screws M4 x 10 7 2 Connect the power wire and indoor outdoor connec...

Page 153: ...0 4 Remove the screws of the discharge cabinet lower and partition plate M4 10 3 6 Remove the screws of the discharge cabinet upper and motor base M4 10 2 Motor base screws 2 positions 7 As in steps 2 to 6 remove the discharge cabinets lower 2 Attachment 1 Mount by reversing the detachment procedure attaching the lower and upper discharge cabinets in order Insert the hooking tabs into the holes in...

Page 154: ...e screws of the side cabinet lower fin guard and heat exchanger plate lower M4 10 3 6 Remove the screws of the side cabinet lower and valve fixing plate M4 10 2 7 Remove the screws of the side cabinet lower and bottom plate M4 10 3 Side cabinet upper Side cabinet upper screws 6 positions Inverter assembly screws 2 positions Side cabinet lower 2 Attachment 1 Mount by reversing the detachment proced...

Page 155: ... the breaker as doing so may cause electric shocks 1 Detachment 1 Perform Step 1 of Step 1 of and Step 1 of 2 Remove the screws of the inverter cover B and reactor assembly M4 10 1 3 Remove each wires of the reactor from reactor terminal 2 positions 4 The reactor is lifted up and removed Inverter cover B Reactor CH 57 DN ...

Page 156: ...07 TO sensor 2P yellow CN520 TE sensor 2P green CN505 TS sensor 2P white CN523 TL sensor 2P white CN317 4 way valve coil 3P blue CN300 PMV coil 6P white CN312 2 way valve coil 3P red CN314 2 way valve coil 4P white CN311 2 way valve coil 3P white CN308 Thermostat 2P red CN501 High pressure sensor 4P red CN500 Low pressure sensor 4P white CN600 Connection with 2 fan IPDU P C board CN504 5P blue CN4...

Page 157: ...ess the fast on terminals twice After disconnecting the fast on terminals that have been inserted once replace the compressor leads Make sure to keep the exposed compressor lead wires straight Be careful not to apply excess stress to the terminals and lead wires Attach the terminal cover after passing the lead wires through the bushing At this time be careful not to let the lead wires get caught i...

Page 158: ...erform Step 1 of Step 3 and Step 4 of 2 Remove the screws fixing the interface P C board attachment plate and pull the attachment board in the direction of the arrow to remove it M4 8 4 3 Remove the connector connected between the noise filter P C board and another component CN01 Connection with power supply terminal block L black CN02 Connection with power supply terminal block L white CN08 Conne...

Page 159: ...reactor terminal A black CN05 CN12 Connection with reactor terminal A red CN03 Connection with noise filter P C board CN04 white CN04 Connection with noise filter P C board black CN21 Connection with fan IPDU P C board CN502 3P white CN851 Connection with fan IPDU P C board CN505 5P red CAUTION Disengage the lock on the housing to unplug the connector 5 Remove the Comp IPDU P C board fixing 2 scre...

Page 160: ...motor lead 3P blue CN750 Fan motor lead 3P white CN504 Connection with interface P C board CN600 5P blue CN505 Connection with comp IPDU P C board CN851 5P red CN502 Connection with comp IPDU P C board CN21 3P white 3 Remove the Fan IPDU P C board fixing screws Flange screws M3 14 5 4 Remove the support hooks 4 positions fixing the Fan IPDU P C board to remove it 5 Mount a new Fan IPDU P C board C...

Page 161: ... the breaker as doing so may cause electric shocks 1 Perform Step 1 of Step 1 of 2 Remove the screws on the reactor M4 8 4 3 Mount a new reactor CAUTION When mounting connect lead wires of the same color to each reactor Faulty wiring will result if the lead wire colors are connected in alternation Screws each 4 positions ...

Page 162: ...an motor CAUTION Note that the wiring paths of the motor bases upper and lower are different Also make sure to arrange the lead wires such that water cannot get inside the mechanical compartment Tighten the flange nut by 4 9 N m 50 kgf cm Adjust the length of the fan motor leads at the inverter box to take up any excess slack and ensure that the fan motor leads do not come in contact with the prop...

Page 163: ...ition plate lower bottom plate and heat exchanger lower and remove the partition plate lower M4 10 5 9 Remove the TD sensor and binding band the discharge pipe 10 Brazing the discharge and suction pipes connected to the compressor using the burner to remove the soldering CAUTION Be careful when brazing the soldering with the burner to remove the pipes Oil remaining in the pipes may generate fire w...

Page 164: ...thod of opening compulsion of PMV completely Turn on the power to the outdoor unit Short CN300 and CN301 on I F P C board Turn off the power to the outdoor unit within 2 minutes of short circuiting 4 Refrigerant charging Add the same amount of refrigerant as the remaining refrigerant from the charge port of the valve 5 Installation of sound insulation mat 1 Start installing the sound insulation ma...

Page 165: ... band 3 places Lead wire clamp 1 position Fan guard 1 Detachment 1 Perform Step 1 of Step 1 of CAUTION For scratch protection work on a carton box cloth or the like 2 Remove the discharge cabinet and place it with the fan guard side facing downward 3 Remove the hook of the fan guard by pushing it with a flat head driver or the like 4 Remove the fan guard from the discharge cabinet Fan guard Discha...

Page 166: ...compressor attachment plate and compressor hexagonal bolts M6 15 3 7 Remove the hexagonal screws fixing the accumulator assembly and accumulator fixing plate hexagonal screws M5 10 4 8 Hold up the heat exchanger compressor and piping assembly and place them on a new bottom plate assembly CAUTION Two or more persons should work on replacing the bottom plate assembly Be careful not to apply excessiv...

Page 167: ...MCY MHP0404HTJ MCY MHP0504HTJ MCY MHP0604HTJ MCY MHP0404HTJ E MCY MHP0504HTJ E MCY MHP0604HTJ E 2 Shipped parts list Please make sure that before you do the work the following parts are shipped all No Parts name Quantity 1 P C board Replacement Procedure Manual English and Chinese each 1page A4 paper double side print 1 2 Service P C board MCC 1639 Interface P C board in Antistatic air cap 1 3 Rep...

Page 168: ...on of the arrow to unlock and remove the P C board assembly J08 J09 J10 J11 J12 Short connector 6 Set the DIP switches of the service P C board to the settings used before replacement 7 The short connectors must be connected at the address setup stage Therefore when replacing the P C board leave the shipment settings unchanged and after having replaced the board follow the instructions in section ...

Page 169: ...moving the comp IPDU P C board not to damage the 2 card spacers If a card spacer has been damaged be sure to use a card spacer packed with the board and replace the damaged card spacer by following the steps in the service guide Failure to replace it may cause the comp IPDU P C board to malfunction 5 The screws and single touch spacers which were removed will be used again when the service P C boa...

Page 170: ...ue 1 2 0 1 N m Card spacer Single touch spacer Screw M4x14 Card spacer Push this in the direction of the arrow to unlock and remove the P C board assembly Single touch spacer Screw M4x14 First remove the screws and then remove the P C board assembly Evenly apply the silicon heat sink compound to the heat sink surfaces of the IPM IGBT and rectifier devices Caution It must be ensured that no dust et...

Page 171: ...ap 1 3 Card Spacer No in Plastic bag It is not required for the model above 4 4 Current Fuse No 6 3A 250V 1 3 Fan IPDU P C board setting This same service P C board is used for both one fan and two fans If the P C board assembly is to be replaced check whether it is the board for one fan or two fans that will be replaced cut the jumper wires as specified below and then follow the replacement steps...

Page 172: ... again when the service P C board is installed so keep them in a safe place to ensure that they will not be lost or misplaced 6 When replacing the board evenly apply silicone heat sink compound to the heat sink surfaces of the IPM and rectifier devices on the service P C board Then install the board in the outdoor control unit Failure to apply the silicone heat sink compound may cause the service ...

Page 173: ...sh this in the direction of the arrow to unlock and remove the P C board assembly Exchange Current Fuse Standard for heat silicone heat sink compound Manufacturer Shin Etsu Chemical Co Ltd Type G746 Evenly apply the silicon heat sink compound to the heat sink surfaces of the IPM and rectifier devices Caution It must be ensured that no dust etc adheres to the heat sink surfaces of the IPM and recti...

Page 174: ...y be damaged if they are pulled out by grasping their lead wires be sure to take hold of the connectors themselves when disconnecting them 4 To remove the malfunctioning noise filter P C board remove the two card edge spacers and two single touch spacers first 5 The screws and single touch spacers which were removed will be used again when the service P C board is installed so keep them in a safe ...

Page 175: ... C board 43H69012 Screws M4x8 Used to secure lead wires Screw tightening torque 1 2 0 1 N m PCB PCB P C board Single touch spacer After removing screw remove the P C board assembly Screw M3x20 Card edge spacer Push this in the direction of the arrow to unlock and remove the P C board assembly ...

Page 176: ...P0404HT J E 0504HT J E 0604HT J E MCY MHP0404HT TR 0504HT TR 0604HT TR MCY MHP0404HT J 0504HT J 0604HT J 12Exploded diagram parts list MCY MHP0404HT A 0504HT A 0604HT A MCY MHP0404HT SG 0504HT SG 0604HT SG MCY MHP0404HT ID 0504HT ID 0604HT ID 175 ...

Page 177: ... 1 023 43H48010 ACCUMULATOR 1 1 1 1 024 43H47017 BONNET 5 8 IN 1 1 1 1 025 43H47016 BONNET 3 8 IN 1 1 1 1 026 43H50013 THERMOSTAT COMPRESSOR 1 1 1 1 027 43H63003 HOLDER SENSOR 1 1 1 1 028 43H19010 HOLDER SENSOR TS 3 3 3 3 029 43H58005 REACTOR CH 57 DN 2 2 2 2 030 43H97006 NUT FLANGE 2 2 2 2 031 43H21003 MOTOR FAN WDF 340 A100 1 2 2 2 2 032 43H20003 FAN PROPELLER PN501 2 2 2 2 033 43H22002 BASE ASS...

Page 178: ...TRAINER 19 05DIA 2 2 2 022 43H47004 STRAINER 45 00DIA 1 1 1 023 43H48010 ACCUMULATOR 1 1 1 024 43H47017 BONNET 5 8 IN 1 1 1 025 43H47016 BONNET 3 8 IN 1 1 1 026 43H50013 THERMOSTAT COMPRESSOR 1 1 1 027 43H63003 HOLDER SENSOR 1 1 1 028 43H19010 HOLDER SENSOR TS 3 3 3 029 43H58005 REACTOR CH 57 DN 2 2 2 030 43H97006 NUT FLANGE 2 2 2 031 43H21003 MOTOR FAN WDF 340 A100 1 2 2 2 032 43H20003 FAN PROPEL...

Page 179: ...UMULATOR 1 1 1 1 024 43H49025 BONNET 3 4 IN 1 1 1 1 025 43H47016 BONNET 3 8 IN 1 1 1 1 026 43H50013 THERMOSTAT COMPRESSOR 1 1 1 1 027 43H63003 HOLDER SENSOR 1 1 1 1 028 43H19010 HOLDER SENSOR TS 3 3 3 3 029 43H58005 REACTOR CH 57 DN 2 2 2 2 030 43H97006 NUT FLANGE 2 2 2 2 031 43H21003 MOTOR FAN WDF 340 A100 1 2 2 2 2 032 43H20003 FAN PROPELLER PN501 2 2 2 2 033 43H22002 BASE ASSY MOTOR 2 2 2 2 034...

Page 180: ...A 2 2 2 022 43H47004 STRAINER 45 00DIA 1 1 1 023 43H48010 ACCUMULATOR 1 1 1 024 43H49025 BONNET 3 4 IN 1 1 1 025 43H47016 BONNET 3 8 IN 1 1 1 026 43H50013 THERMOSTAT COMPRESSOR 1 1 1 027 43H63003 HOLDER SENSOR 1 1 1 028 43H19010 HOLDER SENSOR TS 3 3 3 029 43H58005 REACTOR CH 57 DN 2 2 2 030 43H97006 NUT FLANGE 2 2 2 031 43H21003 MOTOR FAN WDF 340 A100 1 2 2 2 032 43H20003 FAN PROPELLER PN501 2 2 2...

Page 181: ...183 Inverter assembly 703 704 707 701 717 714 705 711 708 702 714 714 714 718 719 180 ...

Page 182: ...H50002 TD SENSOR 1 1 1 1 714 43H50005 SENSOR 4 4 4 4 717 43H50026 SENSOR HOLDER 1 1 1 1 Ref No Part No Description Q ty Set MCY MHP 0404HT SG 0404HT ID 0404HT J A 0504HT SG 0504HT ID 0504HT J A 0604HT SG 0604HT ID 0604HT J A 701 43H69011 PC BOARD ASSY MCC 1639 1 1 1 702 43H69012 PC BOARD ASSY MCC 1551 1 1 1 703 43H69013 PC BOARD ASSY MCC 1647 1 1 1 704 43H69008 PC BOARD ASSY MCC 1597 1 1 1 705 43H...

Page 183: ...sed in multi air conditioners is 0 3kg 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 10kg The possible amount of leaked refrigerant gas in rooms D E and F is 15kg NOTE 2 The ...

Page 184: ... 17 TAKANAWAN 3 CHOME MINATOKU TOKYO 108 0075 JAPAN Copyright 1999 to 2012 TOSHIBA CARRIER CORPORATION ALL Rights Reserved Revision record First issue Revision 1 Page 179 to184 Oct 2011 Mar 2012 Change 12 Exploded diagram Parts list ...

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