Toshiba MCY-MHP0305HT Service Manual Download Page 16

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Wiring diagram

Terminal

Connector

P.C.board

Terminalblock

Protectiveearth

Fieldwiring

RED

WHI

YEL

BLU

BLK

GRY

BRN

GRN

Colorindication

:RED

:WHITE

:YELLOW

:BLUE

:BLACK

:GRAY

:BROWN

:GREEN

Compressorterminal

(BLACK)

(WHITE)

(RED)

Summary of Contents for MCY-MHP0305HT

Page 1: ...402 2 way Cassette Type MMU AP㪁㪁㪁㪁WH㪁 A10 007 A10 007 MMU AP㪁㪁㪁㪁WH C A10 007 A11 008 Concealed Duct Standard Type MMD AP㪁㪁㪁4BH C A10 033 A11 008 MMD AP㪁㪁㪁6BH㪁 SVM 13087 SVM 13087 MMD AP㪁㪁6BHY C Made in China model A10 1415 A10 1415 Slim Duct Type MMD AP㪁㪁㪁4SPH㪁 A12 005 A12 005 MMD AP㪁㪁㪁4S P H C A12 005 A11 008 MMD AP㪁㪁㪁6M P HY C Made in China model A10 1403 A10 1403 High wall Type MMK AP㪁㪁㪁3H㪁 Mad...

Page 2: ...ontrol outline 23 7 Applied control for outdoor unit 29 7 2 Priority operation mode setting 29 7 3 Applied control of outdoor unit 31 7 3 1 Optional P C board of outdoor unit installation 31 7 3 2 Power peak cut control standard 33 7 3 3 Power peak cut control extended 34 7 3 4 Snowfall fan control 35 7 3 5 External master ON OFF control 35 7 3 6 Night operation sound reduction control 36 7 3 7 Op...

Page 3: ...ecting of refrigerant and control lines 69 8 7 2 Function to start stop ON OFF indoor unit from outdoor unit 71 8 7 3 Error clearing function 76 8 7 4 Remote controller distinction function 78 8 7 5 Pulse motor valve PMV forced open close function in indoor unit 79 8 7 6 Pulse motor valve PMV forced function in outdoor unit 79 8 7 7 Solenoid valve forced open close function in outdoor unit 80 8 7 ...

Page 4: ...tective gloves Safety working clothing Electrical related work Gloves to provide protection for electricians Insulating shoes Clothing to provide protection from electric 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 ...

Page 5: ... 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 6: ...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 7: ...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 8: ...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 9: ... 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 sho...

Page 10: ...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 11: ...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 12: ...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 13: ... AP S P H Slim Duct MMD AP M P HY Compact Slim Duct MMC AP HP Ceiling Floor Standing Cabinet MML AP H MML AP BH Floor Standing Concealed 1 way Cassette MMF AP H Floor Standing High Wall MMK AP H HP MML AP NH Console For details on these models read the owner s manuals that come with the indoor units 3HP 4HP Single phase 220V 50Hz MCY MHP0305HT C MCY MHP0305HT CF MCY MHP0405HT C MCY MHP0405HT CF MC...

Page 14: ...t Model name Appearance E 3 4 0 1 Y H M B R r e d a e h g n i h c n a r b 4 Model type Indoor unit capacity type Appearance 005 to 014 type E 6 3 0 V M P M B R 015 to 027 type E 0 9 0 V M P M B R RBM BY55E t n i o j g n i h c n a r b e p a h s Y 13 ...

Page 15: ...LQJ EROW KROH HWDLOHV RI OHJV ĭ î 8 VKDSH KROH 0RXQWLQJ EROW KROH IRU SLSLQJ 6OLW KROH QRFNRXW IRU SLSLQJ Refrigerant pipe connecting port Liquid side φ9 52 connecting port Refrigerant pipe QRFNRXW IRU GRZQZDUG SLSLQJ IRU SLSLQJ QRFNRXW PERVV î SRUW LU RXWOHW OHJV OHJV UDLQ KROH ĭ î UDLQ KROH ĭ LU LQOHW SRUW SRUW LU LQOHW 57 37 φ15 88 Gas side 710 111 5 PERVV î DQGOH î3 269 688 323 34 PERVV î 710 ...

Page 16: ...block Protective earth Field wiring RED WHI YEL BLU BLK GRY BRN GRN Color indication RED WHITE YELLOW BLUE BLACK GRAY BROWN GREEN Compressor terminal BLACK W WHITE V U RED 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 15 15 ...

Page 17: ...inal block Communication terminal block MCC 1639 Reactor For comp Interface P C board IPDU P C board Fuse MCC 1655 Comp motor drive IPM MCC 1655 Fan motor drive IPM MCC 1655 Line filter MCC 1655 Line filter MCC 1655 Power relay MCC 1655 PTC thermistor MCC 1655 Pipe temp sensor TD Pipe temp sensor TS Pipe temp sensor TE Pipe temp sensor TO Pipe temp sensor TL JXO 3003 02 HP T4053 1 4PS2 CH 83 Z SJ ...

Page 18: ...ut in outdoor unit 69 YDOYH 69 YDOYH 72 VHQVRU 7 VHQVRU 76 VHQVRU 309 3XOVH 0RWRU 9DOYH LJK SUHVVXUH LJK SUHVVXUH 6 ZD YDOYH RZ SUHVVXUH VHQVRU 7 VHQVRU KHFN MRLQW RZ SUHVVXUH VHQVRU LJK SUHVVXUH KHFN MRLQW 7 VHQVRU 17 ...

Page 19: ...19 4 4 Parts layout in inverter assembly 3 8 3 RDUG 0 3RZHU VXSSO WHUPLQDO EORFN QWHUIDFH 3 ERDUG 0 RPPXQLFDWLRQ WHUPLQDO EORFN 18 ...

Page 20: ...01 02 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 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 the cent...

Page 21: ...Fan motor output CN300 White CN852 White High pressure switch input CN500 Red ⓑ Reactor connection connector White Power supply output CN01 Red CN01 Red Lead wire for ground P03 Gray Lead wire for ground P03 Gray Power supply connection lead wire Compressor output White ⓑ 㯮㯮 ⓑ ⓑ ⓑ ⓑ ⓑ ⓑ ⓑ 㸿㹉㹐 20 ...

Page 22: ...iner PMV Strainer Sensor TL Liquid side packed valve Gas side packed 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 21 ...

Page 23: ...r heat in heating operation TE Connector CN520 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...

Page 24: ...ate 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 Avail...

Page 25: ...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 26: ...mpressor is in operation at low speeds of up to 77 rps 2 Control details When Pd pressure becomes 3 4 MPa SV2 is opened When Pd pressure becomes 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 i...

Page 27: ...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 IPDU P C board Current control values for various outdoor units are shown b...

Page 28: ...he 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 or ...

Page 29: ...lse Motor Valve 1 When the power is turned on PMV generate a tapping sound as this is 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 set...

Page 30: ...eration based on No of units in operation 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 dischar...

Page 31: ...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 32: ... installing supports are provided on the top of the 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 TC...

Page 33: ...3 blue SW07 1 2 Power peak cut control 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 ...

Page 34: ...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 35: ...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 36: ...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 37: ... 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 0305 approx 95 approx 95 Model 0505 approx 60 approx 65 Outdoor unit COM Outdoor unit interface PCB Optional PCB Connection cable ...

Page 38: ...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 39: ...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 40: ...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 41: ...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 42: ...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 43: ...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 44: ...g on the indoor units B kg P0405 H M P0305 H M e p y t t i n u r o o d t u O 2 1 P0505 H M 2 1 2 1 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 loc...

Page 45: ... 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 46: ... 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 47: ...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 48: ...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 49: ... 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 50: ...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 49 ...

Page 51: ...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 52: ...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 53: ...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 54: ...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 55: ...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 56: ...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 57: ...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 58: ...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 59: ...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 60: ...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 61: ...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 62: ...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 63: ... 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 64: ...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 65: ...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 64 ...

Page 66: ...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 67: ...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 68: ...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 69: ...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 70: ...es 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 o...

Page 71: ... 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 72: ...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 73: ... 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 74: ... 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 75: ... 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 76: ...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 77: ...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 78: ... 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 79: ...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 80: ...ning 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 mo...

Page 81: ... of each 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 indicat...

Page 82: ...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 83: ...04 on the interface P C board for 2 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 84: ...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 85: ...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 86: ...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 87: ... periodic communication between indoor header and follower unit Periodic communication between indoor header and follower units cannot be maintained T L A 1 0 F Indoor heat exchanger temperature sensor TCJ error Heat exchanger temperature sensor TCJ has been open short circuited T L A 2 0 F Indoor heat exchanger temperature sensor TC2 error Heat exchanger temperature sensor TC2 has been open short...

Page 88: ...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 89: ...atic address setting Indoor 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 cir...

Page 90: ...ine 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 A 9 1 P 9 1 P 4 ...

Page 91: ...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 92: ...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 93: ...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 94: ...nd during automatic address 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 Power failure Inverter DC voltage...

Page 95: ...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 96: ...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 97: ...r unit failure is performed perform 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 bo...

Page 98: ...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 re...

Page 99: ...ard I F Check for defect 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 nor...

Page 100: ... opening 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 ...

Page 101: ...Detected indoor address Indoor unit External interlock of indoor unit Stop of corresponding 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 Ex...

Page 102: ...RU KHFN RXWGRRU 309 IRU FORJJLQJ KHFN LQGRRU RXWGRRU KHDW H FKDQJHUV IRU FORJJLQJ KHFN IRU VKRUW FLUFXLWLQJ RI RXWGRRU VXFWLRQ GLVFKDUJH DLU IORZV KHFN 69 FLUFXLW IRU FORJJLQJ KHFN IRU GHIHFW LQ RXWGRRU 3 ERDUG RU 3 8 KHFN IRU HUURU LQ LQGRRU IDQ V VWHP SRVVLEOH FDXVH RI DLU IORZ UHGXFWLRQ KHFN RSHQLQJ VWDWXV RI LQGRRU 309 KHFN LQGRRU RXWGRRU FRPPXQLFDWLRQ OLQH IRU ZLULQJ HUURU KHFN IRU IDXOW RSHU...

Page 103: ...esponding 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 Ps ...

Page 104: ...eating operation 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 equa...

Page 105: ...motor Check for defect in 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 IPDU P C board Check for defect in compressor layer short circuit Check for defect in outdoor P C board IPDU P29 P29 IPDU Compressor position detection circuit error All stop Position detecti...

Page 106: ...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 107: ...is any loose 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 resistanc...

Page 108: ...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 109: ...e 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 communication between indoor and outdoor 4 Address setup error Yes Is connection U1 U2 terminals of indoor outdoor inter unit wire normal No Yes No Is con...

Page 110: ...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 111: ... 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 112: ...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 135 For a service P C board check outdoor HP setup Set up jumper 8 9 10 11 and 12 C...

Page 113: ...t 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 Yes Are characteristics of TCJ sensor resistance value normal Check indoor P...

Page 114: ...n 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 normal replace outdoor I F P C board This error code means detection of Open Short of TA sensor Check disconnection of circuit for connection of connector ...

Page 115: ...ifferent 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 ...

Page 116: ...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 air conditioner of IC10 IC503 non volatile memory EEPROM on indoor unit P C b...

Page 117: ...ause of overload Correct power line Take off lead wire of compressor 1 Check resistance 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 stagnatio...

Page 118: ...door unit fully opened No 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 White No Yes Correct SV4 valve circuit 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 d...

Page 119: ...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 120: ... 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 121: ...s there voltage fluctuation 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 ...

Page 122: ...sor 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 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 circuit leakage misinstallation Are service valve of gas and liquid sides fully opened Is outdoor PMV normal 1 Conn...

Page 123: ...ling operation Cooling T o B Heating T o C 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 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 connecti...

Page 124: ...0 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 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 IPDU P C board error Is wiring of 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 Chec...

Page 125: ...Part numbers such as connectors and fuses might be different depending on the model In that case please refer to the service manual of each indoor unit 124 ...

Page 126: ...efrigerant shortage clogging pipe breakage Replace TS sensor Check and replace 4 way valve and coil Repair SV4 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 check...

Page 127: ...temp 20 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 co...

Page 128: ...ctor 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 No No Cooling To B Heating To C 1 Pressure by ...

Page 129: ...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 IPDU P C board Yes No Yes No No No Yes No Yes Yes Correct wire connector connection Replace motor Clear the cause of overhead e s u a...

Page 130: ...ailure 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 and...

Page 131: ...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 132: ...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 133: ...Normal heating H Normal defrosting J B 4 Outdoor unit HP capacity A 3 3HP 5 5HP U 1 A 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 2 ...

Page 134: ...verted 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 S t l o b m y s r e t t e L a t a d r o s n e s S T Data 6 E t l o b m y s r e t t e L a t a d r ...

Page 135: ... 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 de...

Page 136: ...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 137: ...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 136 ...

Page 138: ...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 137 ...

Page 139: ...8 1 7139 1 7331 1 7523 1 7714 1 7906 1 8098 1 8290 1 8481 1 8673 1 8865 1 9056 1 9248 1 9440 1 9632 1 9823 2 0015 2 0207 2 0398 2 0590 2 0782 2 0974 2 1165 2 1357 2 1549 2 1740 2 1932 2 2124 2 2316 2 2507 2 2699 2 2891 2 3082 2 3274 2 3466 2 3658 2 3849 2 4041 2 4233 15 00 15 20 15 40 15 59 15 79 15 98 16 18 16 37 16 57 16 76 16 96 17 15 17 35 17 55 17 74 17 94 18 13 18 33 18 52 18 72 18 91 19 11 ...

Page 140: ...1 0 5385 0 5449 0 5513 0 5576 0 5640 0 5704 0 5768 0 5832 0 5895 0 5959 0 6023 0 6087 0 6151 0 6214 0 6278 0 6342 0 6406 0 6470 0 6533 0 6597 0 6661 0 6725 0 6789 0 6852 0 6916 0 6980 0 7044 0 7108 0 7171 0 7235 0 7299 0 7363 0 7427 0 7490 0 7554 0 7618 0 7682 0 7746 0 7809 0 7873 0 7937 0 8001 0 8065 4 99 5 06 5 12 5 19 5 25 5 32 5 38 5 45 5 51 5 58 5 64 5 71 5 77 5 84 5 90 5 97 6 03 6 10 6 16 6 ...

Page 141: ...erminal block and communication terminal block Fig 1 4 4 Remove the upper panel Fig 1 5 screws M4 x 10 7 2 Attachment WARNING CAUTION Front Fig 1 1 Fig 1 2 Fig 1 3 panel Front panel screws 4 2 Attachment 1 Mount the upper panel screws M4 x 10 7 Fig 1 5 2 Connect the power wire and indoor outdoor connection wire to the terminals and fix them with the cord clamp Fig 1 4 Fix the power wire and indoor...

Page 142: ...late M4 10 2 Fig 2 4 6 Remove the screws of the discharge cabinet upper and motor base M4 10 2 Fig 2 5 Remarks Heat exchanger screw 1 posiƟon Motor base screws 2 poƐŝƟons Fin guard screws ϯ ƉŽƐŝƟŽŶƐͿ Discharge cabinet ParƟƟon plate screws 3poƐŝƟons Discharge cabinet B tt l t 2 Attachment 1 Mount by reversing the detachment procedure attaching the discharge cabinets in order Insert the hooking tabs...

Page 143: ...r assembly Fig 3 2 M4 10 2 4 Remove the screws of the Side panel and valve fixing plate Fig 3 2 M4 10 2 5 Remove the screws of the Side panel and bottom pate Fig 3 1 M4 10 3 Side panel Side panel BŽƩŽm plate screws 3 posiƟons Side panel screws 3 posiƟons Valve ĮǆŝŶg plate Inverter assembly screws 2 posiƟons 2 Attachment 1 Mount by reversing the detachment procedure attaching the Side panel in orde...

Page 144: ...amps 2 positions Banding band Interface P C board 1 position Screws 4 posiƟons Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause electric shocks 1 Cut the banding band and remove the connector connected the reactor lead Fig 4 4 2 Cut the banding band and remove the connector connected the compressor lead Fig 4 4 3 Remove the connector connected the high p...

Page 145: ...inutes after turning off the breaker as doing so may cause electric shocks 1 Perform Step 1 of 1 and Step 4 of 1 of 4 2 Remove the support hooks 8 positions fixing the board to remove the interface P C board Fig 5 1 3 Mount a new interface P C board WARNING Support hooks 8 positions㻕 Interface P C board Fig 5 1 144 ...

Page 146: ...㪼㫎㫊㩷㩿㪎㩷㫇㫆㫊㫀㫋㫀㫆㫅㫊㪀㪪㫀㫃㫀㪺㫆㫅㪼 Fig 6 3 Screws 3 positions Cord clamp SRVLWLRQV 6FUHZV SRVLWLRQV Edge support SRVLWLRQV Support SRVLWLRQ Wire saddle Earth wire Screw SRVLWLRQ Round terminal Heat sink Inverter duct IPDU P C board IPDU P C board fixing plate Heat sink 䇭 Screws 7 positions IPDU P C board Inverter duct Fig 6 6 SRVLWLRQV Fig 6 4 Fig 6 5 Back of IPDU P C board 6 IPDU P C board Do not detach...

Page 147: ...propeller fan Fig 8 3 Turn the flange nut clockwise to loosen it To tighten it turn it counterclockwise WARNING CAUTION CAUTION Screws 4 posiƟons Connector of fan motor 1 posiƟon Code clamp 2 ƉŽƐŝƟŽŶƐ To tighten it turn it counterclockwise 5 Remove the propeller fan 6 Remove the fan motor leads from the motor base Fig 8 4 7 Hold the fan motor and remove the 4 fixing screws so that the fan motor do...

Page 148: ...he discharge and suction pipes 11 Remove the compressor bolts fixing the compressor to the bottom plate Fig 9 6 hexagonal bolts M6 15 3 12 Pull out the compressor The compressor weighs over 15 kg Two persons should work together CAUTION WARNING CAUTION CAUTION Remove discharge pipe 㻕 Compressor replacement Remove sucƟon pipe Compressor bolts 3 ƉŽƐŝƟŽŶƐ otto p ate Comp terminal and case thermostat ...

Page 149: ...resso r 6RXQG insulation mat inside 6RXQG insulation mat outside 1 6RXQG insulation mat outside 2 6RXQG insulation mat up Adjustment position Adjustment position 4 Installation of sound insulation maW LJ 1 6tart installing the sound insulation mat inside from the adjustment position EHtween the compressor and pipe and the sound insulation mat outside up to the adjustment position EHtween the pipe ...

Page 150: ...e the hook of the fan guard by pushing it with a flat head driver or the like Fig 12 3 5 Remove the fan guard from the discharge cabinet 2 Attachment 1 Insert the upper protrusion of the fan guard into the square hole of the discharge cabinet and insert the hook Push the hooks 8 positions with your hand to fix them CAUTION CAUTION Confirm that all the hooks are securely fixed to specified position...

Page 151: ... screws from the heat exchanger assembly and partition plate Fig 13 3 ĭ î 12 Replace it with a new heat exchanger assembly 䞉䞉䞉 1 Install it in the reverse of the procedure to remove it 2 Attach banding band to 2 positions on the distributor assembly Fig 13 1 3 3HUIRUP 6WHS WR RI Heat exchanger assembly Fin guard Screws 4 positions Bottom plate Banding band and pipe cover 2 positions TE sensor ba...

Page 152: ...to press on the 3 cla mp hooks on the handle Fig 15 2 1 Install it in the reverse of the procedure to remove it 䊶The cushioning for the handles acts as waterproofing so carefully 䊶The cushion is put based on the dent of Side panel Fig 15 3 stick it back on its original position so there are no gaps caused by it ripping or lifting up Clamp hook 3 positions Flathead screwdriver Fig 14 1 Cushioning F...

Page 153: ...t 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 Replacement steps 1 Turn off the power of the outdoor control unit Turn off the power of the outdoor unit 2 Immediately after turning off th...

Page 154: ...ection 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 sect...

Page 155: ...rvice manual Failure to replace it may cause malfunction of the IPDU P C board 5 Disconnect screws then remove the malfunctioning IPDU P C board from the Heatsink Remove 5 single touch spacers from the malfunctioning IPDU P C board 6 The screws cord clamps and single touch spacer which were removed will be used again when the service P C board is installed so keep them in a safe place to ensure th...

Page 156: ...ure the IPM IGBT and rectifiers Screw tightening torque 0 55 0 1 N m ļ Screw M4 8 Used to secure the earth lead wire Screw tightening torque 1 2 0 1 N m ĺ Screw M4 8 Used to secure the lead wire Screw tightening torque 1 2 0 1 N m Ľ Screw M4 10 Used to secure the lead wire Screw tightening torque 1 2 0 1 N m Ĺcord clamp ĸ card spacer ĺSingle touch spacer Ļscrews㸦M3 20㸧 IPDU P C board 43H69024 ĺSin...

Page 157: ...5HT ID 0405HT ID MCY MHP0305HT CF 0405HT CF 0505HT CF 12Exploded diagram parts list 028 036 037 033 026 043 031 030 004 035 034 042 032 040 038 021 029 042 039 041 027 009 001 002 005 003 006 007 010 012 013 014 015 018 019 016 017 020 023 011 011 022 008 025 044 024 156 ...

Page 158: ... 1 1 022 43H47017 BONNET 5 8 IN 1 1 023 43H47016 BONNET 3 8 IN 1 1 024 43H50013 THERMOSTAT COMPRESSOR 1 1 025 43H19010 HOLDER SENSOR TS 4 4 026 43H58012 REACTOR CH 83 1 1 027 43H97006 NUT FLANGE 1 1 028 43H21003 MOTOR FAN WDF 340 A100 1 1 1 029 43H20003 FAN PROPELLER PN501 1 1 030 43H22017 BASE ASSY MOTOR 1 1 031 43H00031 PANEL ASSY OUT 1 1 032 43H00032 PANEL ASSY FRONT LOWER 1 1 033 43H02005 PANE...

Page 159: ...183 Inverter assembly 7 6 1625 7 6 1625 3 2 5 66 17 5 0 ⓑ 㯮 66 2035 6625 3 2 5 66 3 8 0 72 6 1625 2 5 6 1625 72 7 6 1625 76 6 1625 7 50 1 3 9 158 ...

Page 160: ...1 1 1 705 43H50001 HOLDER䇭SENSOR䋨TO 1 1 1 1 1 1 R O S S E R P M O C Y S S A D A E L 5 1 0 0 6 H 3 4 7 0 7 1 1 1 A 0 3 V 0 0 6 C A P 3 L A N I M R E T 6 1 0 0 6 H 3 4 8 0 7 1 1 1 D T R O S N E S 2 0 0 0 5 H 3 4 1 1 7 4 4 4 R O S N E S 5 0 0 0 5 H 3 4 4 1 7 1 1 1 HOLDER SENSOR TE 43H50026 7 1 7 Ref No Part No Description Q ty Set MCY MHP 0505HT C CF 159 ...

Page 161: ...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 stan...

Page 162: ... Conditioning China Co Ltd Building 1 No 60 21st Avenue Baiyang Street Hangzhou Economic and Technological Development Area China Revision record First issue 1 n o i s i v e R 㪪㪼㫇㪅㩷㪉㪇㪈㪋 Oct 2015 Model Name MCY MHP0505HT C ...

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