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Toshiba MMU-AP0071MH, Service Manual

The Toshiba MMU-AP0071MH Owner's Manual is available for free download on manualshive.com. This comprehensive manual provides detailed instructions and guidelines for operating and maintaining your Toshiba MMU-AP0071MH. Explore all the features and get the most out of your product with this user-friendly manual.

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115

Location

Part No.

Description

Remarks

No.

201

43120225

Fan Ass’y, Turbo

202

43122094

Bell Mouth

203

43172185

Pan Ass’y, Drain

204

43172186

Pan Ass’y, Drain

205

43121738

Motor, Fan

SWF-230-60-1R

206

43146707

Motor, PMV

EDM-MD12TF-3

207

43146713

Valve, PMV

EDM-B25YGTF-3

208

43146714

Valve, PMV

EDM-B40YGTF-3

209

4314J263

Refrigeration
Cycle Ass’y

210

4314J264

Refrigeration
Cycle Ass’y

211

4314Q006 Distributor Ass’y

212

4314Q007 Distributor Ass’y

213

43047685

Nut, Flare

1/4 IN

214

43049776

Socket

3/8 IN

215

43149351

Socket

1/4 IN

216

43047688

Nut, Flare

1/2 IN

217

43149353

Socket

1/2 IN

218

43047609

Bonnet

219

43147195

Bonnet

1/2 IN

220

43049697

Bonnet

221

43170244

Hose, Drain

222

43079249

Band, Hose

223

43060029

Filter, Noise

224

43163052

Holder, Lead,
Fan Motor

225

43119482

Cover Ass’y Body

226

43170248

Hose, Drain

227

43119483

Cover, Pipe

228

43097212

Nut

229

43107215

Holder, Sensor

230

43019904

Holder, Sensor

231

43179135

Band, Hose

232

43149314

Sheet, PMV

233

43139137

Rubber, Cushion

234

43162056

Cover, E-Box

235

43177001

Pump, Drain

236

43151289

Switch, Float

237

43179126

Rubber,
Pump Drain

238

43166002

Remote Controller

SX-A1EE

239

43166004

Remote Controller

SX-A11JE2

240

43166005

Remote Controller

EX-W2JE2

241

43166006

Remote Controller

WH-H1JE2

242

4311M422 Owner’s Manual

MMY-MAP1201HT8

243

4318T727

Owner’s Manual

MCY-MAP0401HT

244

4318T631

Owner’s Manual

MMY-MAP1201FT8

245

43119475

Guard Fan

246

43149355

Nut, Flare

3/8 IN

247

43197155

Washer

Model Name    MMU-AP

0071MH 0091MH 0121MH 0151MH 0181MH

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Summary of Contents for MMU-AP0071MH

Page 1: ... 4 Way Air Discharge CassetteType MMU AP0071MH MMU AP0091MH MMU AP0121MH MMU AP0151MH MMU AP0181MH This Service Manual describes contents of the Compact 4 Way Air Discharge Cassette indoor unit For the outdoor unit refer to the Manual with FILE No A03 009 A05 004 A05 015 ...

Page 2: ... 2 WIRING DIAGRAM 9 3 PARTS RATING 10 4 REFRIGERATING CYCLE DIAGRAM 34 5 CONTROL OUTLINE 35 6 APPLIED CONTROL 39 7 TROUBLESHOOTING 44 8 CONFIGURATION OF CONTROL CIRCUIT 94 9 DETACHMENTS 99 10 P C BOARD EXCHANGE PROCEDURES 108 11 EXPLODED VIEWS AND PARTS LIST 113 2 ...

Page 3: ...which uses other refrigerant R22 etc never use R410A If different types of refrigerant are mixed abnormal high pressure generates in the refriger ating cycle and an injury due to breakage may be caused 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 condit...

Page 4: ...cludes a large amount of charged refrigerant such as a multi air conditioner in a sub room it is necessary that the density does not the limit even if the refrigerant leaks If the refrigerant leaks and exceeds the limit density an accident of shortage of oxygen is caused For the installation moving reinstallation work follow to the Installation Manual If an incorrect installation is done a trouble...

Page 5: ...others 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 comp...

Page 6: ...heck etc Vacuum evacuating Refrigerant charge Refrigerant charge Gas leakage check Refrigerant charge Conventional air conditioner installation Whether new equipment can be used with conventional refrigerant Yes Note 1 No No Yes Yes No Yes No Whether conven tional equipment can be used Note 1 Note 1 No No No Yes No No No 1 Vacuum pump Use vacuum pump by attaching vacuum pump adapter 2 Torque wrenc...

Page 7: ...e gauge Gauge manifold Brazed Service port Service port Ø6 4 Copper pipe Ø6 4 Copper pipe Fully tightened Reducing valve Nitrogen gas Valve fully closed liquid side Connected to other terminal units Charge the refrigerant as below Recover the refrigerant and check there is no refrigerant in the equipment Leave it as it is for 1 to 2 minutes and check the indicator of the compound gauge does not re...

Page 8: ...knockout square hole Ø150 Bottom face of ceiling Bottom face of ceiling Refrigerant pipe Gas 0151 0181MH Ø12 7 0071 to 0121MH Ø9 5 Refrigerant pipe Liquid Ø6 4 268 27 63 134 145 5 220 5 1000 or more 1000 or more Obustacle 1000 or more 15 or more 15 or more Drain up standing up size Note As ABS is used for the drain discharge port of the main unit the vinyl chloride paste cannot be used Use the fle...

Page 9: ...n drive Option Adapter for wireless remote controller Wireed remote controller CN44 BRW CN50 WHI CN66 WHI CN32 WHI CN61 YEL Control P C board for Indoor unit MCC 1402 CN60 WHI CN81 BLK CN33 WHI CN20 BLU CN70 WHI CN73 RED CN80 GRN CN41 BLU CN40 BLU CN309 YEL CN101 BLK CN102 RED CN104 YEL CN34 RED CN100 BRW TC1 FS TA TCJ TC2 CN82 BLU LM1 LM2 Outdoor unit PNL EXCT Filter GRL CN001 WHI WHI BLK BLU BLU...

Page 10: ...m Vinyl tube Ø4 size lead wire length 1400mm Vinyl tube Ø6 size lead wire length 1500mm Vinyl tube Black Ø6 size lead wire length 1400mm Vinyl tube Red FS 0218 103 ADP 1409 3 2 Name of Each Part Air outlet Air outlet flap Select air blow direction in cooling or heating operation each Air filter Removes dust and trash Air filter is provided in the air grille Clip The clip is to open close the air i...

Page 11: ...ect display The selected air volume mode is displayed AUTO HIGH MED LOW 16 Mode select control display Displayed when pushing Operation mode select button while the operation mode is fixed to heating or cooling by the system manager of the air condi tioner 17 Central control display Displayed when using the remote controller together with the central control remote controller etc If Remote control...

Page 12: ... the auto swing and angle of the flap 7 Operation lamp Lamp is lit during the operation Lamp is off when stopped Although it flashes when operating the protection device or abnormal time 8 ON OFF button When the button is pushed the operation starts and it stops by pushing the button again When the operation has stopped the operation lamp and all the displays disappear 9 Operation select button Se...

Page 13: ... and the display changes in the order shown on the right In HEAT mode if the room temperature reaches to the set temperature the outdoor unit stops and the air flow becomes ULTRA LOW and the air volume decreases In the heating mode the fan stops so that cool air is not discharged and Heat is displayed 3 Select air volume with FAN FAN button One push of the button and the display changes in the ord...

Page 14: ...n starts after approximately 3 to 5 minutes When you select the Auto mode it is unnecessary to set the fan speed The FAN speed display will show AUTO and the fan speed will be automatically controlled After the heating operation has stopped FAN operation may continue for approx 30 seconds When the room temperature reaches the set temperature and the outdoor unit stops the super low wind is dischar...

Page 15: ...of 0 5 hr 30 minutes The maximum set time is 72 0 hr For every push of button the set time decreases in the unit of 0 5 hr 30 minutes The minimum set time is 0 5 hr 3 Push SET button SETTING display disappears and timer time display goes on When ON timer is activated timer time ON timer are displayed and other displays disappear Cancel of timer operation 4 Push CL button TIMER display disappears N...

Page 16: ...upward If directing it downward the dew may fall on near the air air outlet port or it drips How to start swinging 2 Push SWING FIX button Set direction of the horizontal flap Up Down air direction adjustment plate to the lowest position and then push SWING FIX button again SWING is displayed and the air direction automatically changes upward downward In case when one remote controller controls th...

Page 17: ...ir conditioner If the protective device works the operation stops and the operation lamp flashes When the protective device works the indication TEST and the check code are displayed on the display section of the remote controller In the following cases the protective device may work In cooling operation The suction port or discharge port of the outdoor unit is closed A strong wind continuously bl...

Page 18: ...on the defrosted water will be drained from the bottom plate of the outdoor unit Heating capacity In the heating operation the heat is absorbed from the outside and brought into the room This way of heating is called heat pump system When the outside temperature is too low it is recommended to use another heating apparatus in combination with the air conditioner Attention to snowfall and freeze on...

Page 19: ... or HEAT and an operation contrary to the setup operation is performed When fan operation stopped to prevent discharge of hot air Since refrigerant is flowed temporarily to prevent stay of oil or refrigerant in the stand by indoor unit sound of flowing refrigerant Kyururu or Shaa may be heard or white steam when other indoor unit operates in HEAT mode and cold air in COOL mode may be blow out Soun...

Page 20: ...e with R410A To prevent the risk of charging with an incorrect refrigerant the dimensions of the charging port connections are different to those used for conventional refrigerant Therefore only tools designed to operate with R410A can be used For connecting pipes use piping specifically designed for R410A During installation ensure pipes are clean and ensure contaminants do not enter in the pipes...

Page 21: ...can be exited from the unit without causing a problem Avoid installing in the following places Places exposed to air with a high salt content seaside area or places exposed to large quantities of sulfide gas hot spring Should the unit be used in these places special protective measures are needed Places exposed to oil vapor oil smoke or corrosive gas Places where organic solvent is used nearby Pla...

Page 22: ...he indoor unit unpacked by necessity be sure to use buffering cloth etc to prevent damaging the unit To move the indoor unit hold the hanging brackets 4 positions only Do not apply force to other parts refrigerant pipe drain pan foamed parts or resin parts etc To be carried by two or more persons Do not strap the unit in positions other than that stated 8 m or less 2 SELECTION OF INSTALLATION PLAC...

Page 23: ... ceiling panel Installation of hanging bolt Use M10 hanging bolts 4 off locally procured When mounting the unit set the pitch of the hanging bolts according to the size of the unit as detailed on the dimensional drawing Hanging bolt W3 8 or M10 Nut W3 8 or M10 1 M10 washer supplied all other material must be procured locally 2 To ensure that the unit is mounted safely the hanging bolt must be posi...

Page 24: ...local procure Pipe material Insulator Hard vinyl chloride pipe socket for VP25 Hard vinyl chloride pipe VP25 Outer diameter Ø32 mm Foamed polyethylene foam thickness 10 mm or more Connection of drain pipe Connect the hard socket Procured locally to the hard socket side of the supplied flexible hose which has been installed Connect the drain pipes Procured locally in turn to the connected hard sock...

Page 25: ...ts at intervals of 2 5 m to 3 m If the pipes are not fixed abnormal sounds may be generated Ensure the supplied R410A flare nuts are used Permissible pipe length and permissible height difference This differs depending on the outdoor units For details refer to the Installation Manual supplied with the outdoor unit Piping material and dimensions Use new and clean pipe ensuring that the pipes are no...

Page 26: ... 62 5 0 to 6 2 kgf m 68 to 82 6 8 to 8 2 kgf m Re tightening torque N m 18 1 8 kgf m 42 4 2 kgf m 50 5 0 kgf m 68 6 8 kgf m Outer diam of copper pipe 6 4 9 5 12 7 15 9 R410A tool used R410A R22 0 to 0 5 Same as left 0 to 0 5 Same as left 0 to 0 5 Same as left 0 to 0 5 Same as left Conventional tool used R410A R22 1 0 to 1 5 0 5 to 1 0 1 0 to 1 5 0 5 to 1 0 1 0 to 1 5 0 5 to 1 0 1 0 to 1 5 0 5 to 1...

Page 27: ...iring 20 m or less Twist wire 2 5 mm 50 m or less Twist wire 3 5 mm Q ty 2 Indoor Outdoor inter unit wiring 2 Wire size Up to 1000 m Twist wire 1 25 mm Up to 2000 m Twist wire 2 00 mm Q ty 2 Central control line wiring 3 Wire size Up to 1000 m Twist wire 1 25 mm Up to 2000 m Twist wire 2 00 mm Remote controller wiring 4 Q ty 2 Wire size Twist wire 0 5 to 2 0 mm Twist wire 0 5mm2 to 2 0 mm2 2 Total...

Page 28: ...as standard Change if necessary To change the setup use the main remote controller wired remote controller The setup change for wireless remote controller sub remote controller or a unit without a controller Centrally controlled is not possible In such cases temporarily install a separate main remote controller Applicable control setup Basic operation procedure for setup change Change the setup wh...

Page 29: ...ollow to the basic operation procedure 1 2 3 4 5 6 For the item code in Procedure 3 specify 01 For the Set data in Procedure 4 select the setup data of filter sign lighting time from the following table Increased heating effect If it is not possible to achieve satisfactory heating due to the installation environment or the structure of the room The detected temperature can be increased Also use a ...

Page 30: ...ce does not work TEST Procedure 1 2 3 4 5 Description Keep the TEST button pushed down for 4 seconds or more TEST is displayed on the display part and the selection of the test mode is permitted Push ON OFF button Using MODE button select the operation mode COOL or HEAT Do not run the air conditioner in a mode other than COOL or HEAT The temperature controlling function will not work during the te...

Page 31: ...hecked In case of a fault from the indoor remote controller See Main remote controller display in the list In case of a fault from the outdoor unit See Outdoor 7 segment display in the list In case of a fault from the indoor unit with a wireless remote controller See Sensor block display of receiving unit in the list Terminology IPDU Intelligent Power Drive Unit Lighting Flashing l Goes off ALT Fl...

Page 32: ...ty unset I F L20 L20 SIM Duplicated central control addresses Indoor L28 L28 SIM Over No of connected outdoor units I F L29 L29 01 IPDU1 error 02 IPDU2 error 03 IPDU3 error 04 Fan IPDU error 05 IPDU1 Fan IPDU error 06 IPDU2 Fan IPDU error 07 All IPDU error SIM No of IPDU error I F L30 L30 Detected indoor address SIM Indoor outside interlock Indoor L31 Extended I C error I F Error detected by TCC L...

Page 33: ...remote controller maintenance to the air filter is required 2 Clogging of the air filter decreases cooling heating efficiency 3 After cleaning push the FILTER RESET display disappears 4 way Air Discharge Cassette Type 1 2 5 1 2 3 ON OFF FAN TEMP SWING FIX TIME MODE VENT UNIT SET CL FILTER RESET TEST TIMER SET CODENo Cleaning of air outlet flap The air outlet flap can be removed to clean if necessa...

Page 34: ... outline Connector CN082 6P Blue 1 Controls super heat in cooling operation 2 Controls under cool in heating operation 3 Recovers refrigerant oil in cooling operation 4 Recovers refrigerant oil in heating operation Connector CN104 2P Yellow 1 Detects indoor suction temperature Connector CN100 3P Brown 1 Controls PMV super heat in cooling operation Connector CN101 2P Black 1 Controls PMV under cool...

Page 35: ...mand from the remote controller or central controller the operation mode is se lected 2 Operation select 3 1 Adjustment range set temperature on remote controller C Wired type Wireless type All cooling 18 to 29 C 18 to 30 C All heating 18 to 29 C 16 to 30 C 2 From the item code 06 the setup temperature in heating operation can be corrected Setup data Setup temp correction 0 2 4 6 0 C 2 C 4 C 6 C S...

Page 36: ... When 1 zone is detected the timer is cleared and the operation returns to the normal operation When the command frequency became S0 with continua tion of J zone operation of the the indoor fan in LOW mode until it reaches the 1 zone It is reset when the following conditions are satisfied Reset conditions 1 TC1 12 C and TC2 12 C and TCJ 12 C 2 30 minutes passed after stop 2 In all cooling operatio...

Page 37: ...ostat has been turned off by changing the set up temp the thermostat is OFF with even the above condition The protective control has priority 1 During COOL operation including DRY operation the drain pump operates 2 While the drain pump operates if the float switch works the drain pump continues operation and a check code is displayed 3 While the drain pump stops if the float switch works turn off...

Page 38: ...ld draft or stops including case that defrost operation is being performed HEAT operation cannot be performed because COOL priority is set Outdoor I F P C board SW11 bit 1 is ON and the other indoor unit is under COOL DRY operation 2 HEAT standby is displayed until the above conditions are released Remarks goes on Item and display Operation and heating stand by goes on 16 Selection of central cont...

Page 39: ... the group control are successively displayed In this time the fan of the selected indoor unit only is turned on 3 Specify the item code DN using the setup temperature and buttons 4 Select the setup data using the timer time and buttons When selecting the DN code to 33 change the temperature indication of the unit from C to F on the remote controller 5 Push SET button OK if display goes on To chan...

Page 40: ...on from connected outdoor unit 0000 Does not follow 0001 Follows 0000 Heat pump 0001 Cooling only No display of AUTO HEAT 0014 Compact 4 way Air Discharge Cassette 0000 Unfixed 0001 to 0034 0001 No 1 unit to 0030 No 30 unit 0001 No 1 unit to 0064 No 64 unit 0000 Individual 0001 Header unit of group 0002 Follower unit of group 0000 0 deg to 0010 10 deg For setup temperature reversal of COOL HEAT by...

Page 41: ...rom each unit individually 1 Control items 1 Start Stop input signal Operation start stop in unit 2 Operation signal Output during normal operation 3 Error signal Output during alarm Serial communication error or indoor outdoor protective device operation 2 Wiring diagram using remote control interface TCB IFCB 4E Input IFCB 4E No voltage ON OFF serial signal Output No voltage contact for operatio...

Page 42: ...rs in group control are displayed succes sively In this time the fan of the selected indoor unit only turns on 3 Using the setup temp or button specify the item code 4 Using the timer time or button select the setup data At shipment The setup data are as follows Setup data Handling of operation of air to air heat exchanger or ventilating fan Unavailable At shipment Available 1 2 1 2 CN32 FAN DRIVE...

Page 43: ...at card is taken out from the card switch box When the card switch box does not perform the above contact operation convert it using a relay with b contact 2 Operation Handle the wired remote controller switch in the following procedure Use the wired remote controller switch during stop of the system 1 Push concurrently SET CL TEST buttons for 4 seconds or more 2 Using the setup temp or button spe...

Page 44: ...ote controller and signal wires to shield wires Trouble Check the check display on the interface P C board of the outdoor unit Check position or part in which trouble occurred No 1 2 3 4 5 6 Operation Compressor does not operate Indoor fan does not work Outdoor fan does not rotate or fan speed changes Indoor fan does not stop Start stop operation on remote controller is unavailable Check items Is ...

Page 45: ...ote controller E03 l l Communication error between indoor and remote controller Detected at indoor side Indoor E04 l l Communication circuit error between indoor outdoor Detected at indoor side Indoor E06 E06 No of indoor units in which sensor has been normally received l l Decrease of No of indoor units I F E07 l l Communication circuit error between indoor outdoor Detected at outdoor side I F E0...

Page 46: ...n I F H06 H06 l l Low pressure protective operation I F H07 H07 l l Oil level down detective protection I F H08 H08 01 TK1 sensor error 02 TK2 sensor error 03 TK3 sensor error 04 TK4 sensor error l l Oil level detective temp sensor error I F H14 H14 l l Comp 2 case thermo operation I F H16 H16 01 TK1 oil circuit system error 02 TK2 oil circuit system error 03 TK3 oil circuit system error 04 TK4 oi...

Page 47: ...ay valve inverse error I F P20 P20 l ALT High pressure protective operation I F 0 IGBT short 1 Fan motor position detective circuit error 3 Fan motor trouble C TH sensor temp error Heat sink overheat D TH sensor error P22 P22 E Vdc output error l ALT Outdoor fan IPDU error IPDU P26 P26 01 Comp 1 side 02 Comp 2 side l ALT G TR short protection error IPDU P29 P29 01 Comp 1 side 02 Comp 2 side l ALT ...

Page 48: ...it Unit No and check code are displayed In a case of error with auxiliary code the check code and the auxiliary code are displayed alternately 2 Special mention The check code of the remote controller is displayed only while the air conditioner is operating Remote controller start button ON When the air conditioner stopped and the error has been cleared the check code display on the remote control...

Page 49: ...displayed in order The numbers in item code indicates item code 01 Latest to 04 Oldest CAUTION Do not push CL button because all the error histories of the indoor unit will be deleted After confirmation push TEST button to return to the usual display CODENo UNIT No R C No 1 Confirmation and check When a trouble occurred on the air conditioner the check code and the indoor unit No are displayed on ...

Page 50: ...the error history can be confirmed with the following proce dure Up to 4 error histories are stored in memory This history can be confirmed from either operating or stop 1 Push and SET buttons in succession for 4 seconds or more 2 SERVICE CHECK goes on and Item code 01 goes on 3 When selecting flash the group number if there is the alarm history the UNIT number and the latest alarm history are dis...

Page 51: ...ive communication from outdoor unit When signal is not sent for a certain period from the indoor unit which has been used to send signals E06 is normally displayed Transmission from outdoor to indoor cannot continue for 30 seconds Multiple indoor unit address setup are duplicated In 2 remote controller control including wireless both are setup as master Header indoor unit stops and other indoor un...

Page 52: ...nit of other line was connected when indoor automatic address started Transmission of other outdoor unit was unavailable for 30 seconds or more Outdoor addresses manually set up are duplicated The signal was not returned for constant from the outdoor unit which was receiving signal Outdoor header unit received error code from outdoor follower unit Check item position Setup the address again after ...

Page 53: ...ero Open Short Resistance value of sensor is infinite or zero Open Short Resistance value of sensor is infinite or zero Open Short Check item position Check connection of communication connector and disconnection between IPDU and I F P C board Check outdoor P C board I F IPDU Fan IPDU error Check external noise Check power supply P C board for fan error Check connection cabling of TCJ sensor conne...

Page 54: ...ate normally Inverter current detection circuit detected over current and stopped Over current was detected several seconds after header compressor had started Check item position IGBT built in temp sensor error Exchange IPDU P C board Check installation of TE1 sensor and TL sensor Check characteristics of TE1 and TL sensor resistance value Check outdoor P C board I F error Check connection of hig...

Page 55: ...igerant shortage Check SV5 leak Check SV11 circuit Wiring OFF at one side only Check mispiping of discharge gas suction gas main pipe Check Flow selector unit Check leakage of SVD valve and SVS valve Check leakage of SVDD valve and SVSS Check mispiping of FS unit connecting pipe Suction gas Discharge gas wiring between FS unit and indoor unit and connection of connectors Check miswiring of SVS SVD...

Page 56: ...iswiring and misinstallation of TS1 and TS2 Check leakage of SV6 circuit Check FS unit Leakage of check valve of bypass between liquid pipe and discharge gas pipe Mispiping of discharge suction gas connection Miswiring of SVD SVS valve Misinstallation of coil Check whether there is no setup missing of indoor unit in all cooling operation mode Check connection of TK1 sensor connector Check characte...

Page 57: ...ssor shell Check MG SW or OCR Check indoor address Check the change of remote controller connection Group individual after indoor address setup Check line address Check display of indoor unit with priority Check code Main remote controller H16 L03 L04 L05 Outdoor 7 segment display Check code H16 L04 Auxiliary code 01 TK1 oil circuit system error 02 TK2 oil circuit system error 03 TK3 oil circuit s...

Page 58: ...t On the I F P C board for service jumper line was not cut according to the model Outdoor units of 1 series and those of 2 series were mixed An indoor unit which is not connected with FS unit is driving without setup for cooling only mode Duplicated central control addresses There were more than four outdoor units No of IPDU units detected when power was turned on were less Outside error input ter...

Page 59: ... outdoor P C board I F error Check indoor fan system error Cause of air volume decrease Check opening of indoor PMV Check miscabling of communication line between indoor and outdoor Check operation error of check valve of discharge pipe Check SV4 valve circuit Check SV5 valve circuit Check refrigerant overcharge Check mispiping of discharge gas suction gas main pipe Check circuit clogging at auxil...

Page 60: ...n pump unit Check the drain pump circuit Check clogging of drain pipe Check indoor P C board error Check connection of fan connector and wiring Check fan motor error Check indoor P C board error Check influence of outside air control Check indoor type code DN 10 and the capacity code DN 11 Check full close operation of outdoor PMV 1 2 Check Pd and Ps sensor error Check clogging of SV2 circuit Chec...

Page 61: ...e Check characteristics of TS1 TE1 sensor resistance value Check characteristics of Pd Ps pressure sensor output voltage Check misconnection of TE1 and TL sensors Check Flow selector unit Check leakage of SVD valve and SVS valve Check leakage of SVDD valve and SVSS Check mispiping of FS unit connecting pipe Suction gas Discharge gas Check Pd pressure sensor error Check full opening of service valv...

Page 62: ...ds or more passed after start time Auxiliary code C Heat sink sensor TH of fan IPDU detected 95 C error Auxiliary code D Heat sink sensor TH of fan IPDU detected short circuiting or open Auxiliary code E Input power supply voltage of the fan IPDU over the setup value was detected Input power supply terminal of the fan IPDU was unconnected Power supply P C board error of the fan IPDU Instantaneous ...

Page 63: ...nued Operation continued Error detection condition Signal is not transmit from central control device Signal is not received from central control device Error was input in HA control interface An error occurred in follower unit of the group control P30 is displayed only on the central remote controller Central control addresses were duplicated Check item position Check central control device error...

Page 64: ... V 400 V to 650 V After checking the output when connecting the compressor lead again to the compressor terminal check surely there is no distortion on the fasten terminal lug If it is loosened caulk it with pinchers etc and then connect lead to the terminal How to check resistance of compressor winding 1 Turn off the power supply 2 Remove the compressor lead cables from the compressors In each co...

Page 65: ...ing Check code E03 Check code name Communication error between indoor and remote controller Detected at indoor side Cause of operation No communication from remote controller and communication adaptor This error is detected when the indoor unit cannot receive a signal from the remote controller Check communication wires of the remote controllers A and B As communication is impossible this check co...

Page 66: ... Defect Replace Check noise etc and eliminate it if any Clear the check code Turn on power of indoor unit Correct cabling of cable connector Correct communication line Check code E07 Check code name Indoor Outdoor communication circuit error Detected at outdoor side Cause of operation 1 Indoor outdoor communication end terminal resistance setup error 2 Indoor outdoor communication connection error...

Page 67: ... YES NO Are U1 U2 U3 and U4 connectors connected Disconnect connector connection of U1 U2 U3 and U4 Set up address again Refer to Address setup procedure Turn on power of outdoor unit again Check code E12 Check code name Automatic address start error Cause of operation 1 When indoor automatic address started other refrigerant circuit system was setting automatic address Sub code 01 2 When outdoor ...

Page 68: ...minal block of indoor unit Are remote controller inter unit wires A B normal Are powers of all indoor units turned on Check indoor P C board Failure Replace Check power connection status of indoor unit Correct connection of connector Check circuit wire Correct remote controller inter unit wire Check code E18 Check code name Communication error between indoor header and follower Cause of operation ...

Page 69: ...munication connector CN03 between follower outdoor units connected Correct connector connection Communication connector CN03 Check I F P C board Clear the error and then start operation 1 Turn on the main power supply Correct connection of communication line Check code E26 Check code name Decrease of connected outdoor units Cause of operation 1 Outdoor unit backup setup 2 Outdoor power error 3 Com...

Page 70: ...DU1 error 02 IPDU2 error 03 IPDU1 2 error 04 Fan IPDU error 05 IPDU1 fan IPDU error 06 IPDU2 fan IPDU error 07 All IPDU error or communication line error between IPDU I F P C boards or outdoor I F P C board error If the fan IPDU is abnormal be sure to check the voltage output on the fan power supply P C board Check code F01 Check code name IndoorTCJ sensor error Cause of operation TCJ sensor Open ...

Page 71: ...erature sensor characteristics If sensor is normal replace outdoor I F P C board Check code name F08 Check code name TO sensor error Cause of operation TO sensor Open Short 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 Refer to Outdoor unit temperature senso...

Page 72: ... name F16 Check code name Outdoor pressure sensor miscabling Pd Ps Cause of operation 1 High pressure Pd sensor and low pressure sensor Ps are exchanged 2 Output voltage of each sensor is zero Check code name F23 Check code name Ps sensor error Cause of operation Output voltage error of Ps sensor YES YES YES NO NO Is not refrigerant by passed from discharge to suction of 4 way valve Sensor error I...

Page 73: ...ompressor power connecting section S C R Check code name H02 Check code name Compressor error Lock Cause of operation 1 Outdoor unit power line error 2 Compressor circuit system error 3 Compressor error 4 Refrigerant stagnation in compressor shell 5 IPDU P C board error Auxiliary code 01 Compressor 1 side 02 Compressor 2 side YES YES YES YES YES YES YES NO NO NO NO NO NO NO Operation starts Is com...

Page 74: ...n Cause of operation 1 Service valve close 2 Ps sensor error 3 SV2 SV4 circuit error 4 Miscabling of communication between indoor and outdoor 5 Indoor outdoor fan and condenser error 6 Indoor outdoor PMV clogging 7 Indoor outdoor heat exchanger clogging 8 Refrigerant shortage Is there clogging on whole valve Is outdoor fan normally operated in heating season 1 Pressure by pressure gauge Check join...

Page 75: ...rge temperature of TD1 and TD2 are 60 C or higher 1 a Leakage check for SV3A valve For multiple outdoor unit system Turn off the power supply take off connector of SV3A valve and then start a test operation after power ON Check the temperature change at secondary side of SV3A valve during operation in the figure If temperature is raised it is a leakage of SV3A valve Replace SV3A valve b Leakage ch...

Page 76: ... Check code name H08 Check code name Oil level detective temperature sensor error Cause of operation TK1 to TK4 sensor Open Short Auxiliary code 01 TK1 sensor error 02 TK2 sensor error 03 TK3 sensor error 04 TK4 sensor error Circuit TK1 TK2 TK3 TK4 Connector CN514 Black CN515 Green CN516 Red CN523 Yellow The detected error is an oil level detective temperature sensor error Check disconnection of t...

Page 77: ...l No error Error Error No error Does OCR of MG SW operate YES NO Reset OCR manually 2 Sensor error Replace clogging part Replace SV3E valve Strainer Compressor 2 Oil tank Capillary tube TK2 After power reset Check code name H16 Check code name TK3 temperature detective circuit error Auxiliary code 03 Cause of operation 1 Detachment of TK3 sensor miscabling characteristics error of resistance value...

Page 78: ... been changed 2 If the group configuration and address are normal when power has been turned on the mode automatically shifts to address setup mode Re setup of address Refer to Address setup YES YES NO NO Correct the line address setup Correct the cable connection Is there duplicated line address setup Are communication cable connections of U1 U2 U3 U4 and U5 U6 normal Check outdoor I F P C board ...

Page 79: ... is common to this series A setup for model selection different from that for P C board with trouble is necessary Set up a model based upon the P C board A ssy exchange procedure Check code name L09 Check code name Indoor capacity unset Cause of operation Indoor capacity unset Check code name L17 Check code name Inconsistent models of outdoor units Cause of operation There are outdoor units on the...

Page 80: ...eplace communication line I F P C board error IPDU P C board error Correct connection of connector Is there voltage fluctuation between 4 and 5 pins of CN600 on I F P C board Measurement by tester DC0 to 5V 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 5V 5 pin GND Is jumper setup of outdoor I F P C board correct Jumpers 7 8 9 ON...

Page 81: ...efrigerant short clogging in pipe 5 4 way valve error 6 SV4 circuit leakage misinstallation 7 SV5 circuit leakage 8 SV6 circuit clogging 9 Discharge gas Suction gas pipes mispiping 10 Flow selector unit error Are service valves of outdoor discharge gas suction gas and liquid pipe fully opened Connector CN300 301 White Check there is no pipe breakage and then recharge refrigerant Is resistance char...

Page 82: ...discharge suction gas main pipes Is there no crack or coming off of fan Are characteristics of high pressure sensor normal NO NO NO YES YES NO NO YES NO NO Abnormal Abnormal Abnormal YES YES Normal YES Normal Normal YES NO YES Refrigerant overcharge clogging pipe breakage abnormal overload condition All heating operation Check indoor P C board Failure Replace Repair faulty parts Replace TC2 or TCJ...

Page 83: ... Replace indoor fan motor Replace indoor fan motor Replace indoor fan motor YES YES YES YES YES NO NO NO NO NO CN333 CN334 Detectable in model with DC fan motor 4 way Air Discharge Cassette or Concealed Duct Standard type Under Ceiling High Wall or Compact 4 way Air Discharge Cassette type Auxiliary code 01 Compressor 1 side 02 Compressor 2 side Correct wiring such as cable to compressor or connec...

Page 84: ...ce valve closed 2 Outdoor PMV error 3 TS1 sensor error 4 Refrigerant shortage clogging refrigerant circuit 5 4 way valve error 6 SV4 circuit error Open service valves fully Repair outdoor PMV Replace TS2 sensor Check and replace 4 way valve and coil Repair SV41 and SV42 circuits Are service valves at gas and liquid side fully opened Are characteristics of TS2 sensor resistance normal Is there no l...

Page 85: ...Check code name Discharge temp TD2 error Cause of operation 1 Outdoor unit service valve closed 2 Outdoor PMV error 3 TD sensor error 4 Refrigerant shortage clogging of refrigerant circuit 5 4 way valve error 6 SV4 circuit leakage misinstallation 7 SV5 circuit leakage 8 SV6 circuit clogging 9 Mispiping of discharge gas suction gas pipes 10 Flow selector unit error Open service valves fully Repair ...

Page 86: ... outdoor PMV clogging 5 Indoor outdoor heat exchanger clogging 6 SV2 circuit error 7 SV4 circuit error 8 SV5 circuit error 9 Outdoor I F P C board error 10 Operation error of check valve of main discharge pipe 11 Refrigerant overcharge Reset power supply and start a test operation corresponded to the season Open service valves fully Check parts Failure Replace 1 Pressure by pressure gauge Check jo...

Page 87: ...alve Replace YES YES YES YES NO NO Check operation of 4 way valve Replace 4 way valve Normal Abnormal Check clogging of SV11 circuit Replace defective parts Normal Abnormal NO NO YES YES YES YES YES NO NO NO YES NO NO NO Check code name P22 Check code name Outdoor fan IPDU error Cause of operation 1 Fan lock 2 Fan IPDU P C board error 3 Overload cause 4 External cause such as blast 5 Fan IPDU powe...

Page 88: ...uit error Cause of operation 1 Cable connector connection error 2 Compressor error 3 IPDU P C board error Auxiliary code 01 Compressor 1 side 02 Compressor 2 side Check code name P31 Check code name Other indoor error Group follower unit error Cause of operation Other indoor unit in the group is abnormal When the header unit of the group detected E03 L03 L07 L08 error the follower unit of the grou...

Page 89: ...ernately displayed if an auxiliary code is provided 2 Confirm the check code and then conduct the check operation based on the procedure of each check code diagnosis 3 U1 E28 on 7 segment display means a trouble on the follower unit Push the push switch SW04 on the header unit for several seconds 2 seconds or more As only the fan of the outdoor unit with a trouble drives open the panel of the corr...

Page 90: ...quation oiL 1 Oil equalization request A Displays with segment LED lighting pattern B 10 11 12 13 14 15 16 Refrigerant oil recovery operation A During sending of cooling refrigerant oil recovery signal C1 Normal time C B During sending of heating refrigerant oil recovery signal H1 Normal time H Automatic address A Ad B Automatic addressing FF Normal time Demand operation A dU B Normal time In 50 t...

Page 91: ...mal notation 00 to FF SW04 push function Inverter frequency is exchanged to decimal notation 7 segment display A B H Normal display by pushing SW05 Outdoor fan step A FP B Step 0 to 31 0 to 31 Compressor backup A Displays No 1 compressor setup status Normal Backup setup C1 B Displays No 2 compressor setup status Normal Backup setup C2 A B Control valve output data Displays control output status of...

Page 92: ...ymbol F 1 Data Symbol F 2 Data Symbol F 3 Data Symbol F 4 Data 4 Data display of indoor unit information Displayed on the header unit only SW01 4 5 6 7 8 9 10 11 12 13 SW02 1 to 16 SW03 1 to 3 Display contents Receiving status of B Receiving time 1 Not received indoor BUS communication Indoor check code B No check code Indoor capacity B 0 2 0 5 0 8 1 1 2 1 7 2 2 5 3 3 2 4 5 HP horse power 6 8 1 0 ...

Page 93: ...ure sensor characteristics n 7 segment display A B Display A D600 D601 D602 D603 D604 Display B 10 0 20 30 40 10 20 30 40 50 Characteristic 1 Temperature C Indoor TA sensor Resistance k 50 0 100 150 200 5 0 10 15 20 20 30 10 0 10 20 30 40 50 60 70 80 90 100 Characteristic 2 Temperature C Indoor TC1 TC2 TCJ sensors Resistance k 10 C or lower Resistance k 10 C or higher W01 1 SW02 1 2 3 SW03 16 Disp...

Page 94: ...N1 Wired remote controller Up to 2 units Weekly timer CPU H8 3039 Driver Remote controller communication circuit L A B N U1 U2 U1 U2 Network adaptor Option Indoor unit 1 4 Network adaptor P C board MCC 1401 Indoor control P C board MCC 1402 DC5V DC12V DC5V DC 280V CPU H8 3687 PMV Drain pump None for Concealed Duct type BUS communication circuit Power supply 1Ø220 240V 50Hz 1Ø220V 60Hz AC synchrono...

Page 95: ...side output Max 8 units are connectable 1 1 However in a case that the network adaptor is installed when 2 wireless remote controller kits are connected maximum 7 units are connectable 2 The network adaptor is installed to only 3 Nome for high wall spearatesold parts for under ceiling One unit Wireless remote controller kit Sensor P C board None for Concealed Duct 3 3 Function setup SW Display LED...

Page 96: ...units are connectable 1 1 However in a case that the network adaptor is installed maximum 7 units are connectable 2 The network adaptor is installed to only one unit 3 The weekly timer cannot be connected to the simple wired remote controller 4 Nome for high wall spearate sold parts for under ceiling Wireless remote controller kit Sensor P C board CPU CPU DC5V DC5V 3 CN2 CN1 Wired remote controlle...

Page 97: ...ut HA T10 CHK DISP TA sensor EXCT Used for servicing TC2 sensor TC1 sensor TCJ sensor Remote controller inter unit cable Indoor Outdoor communication Also used for communication of the central control system 1 Indoor Outdoor communication Spare 1 Used only for under ceiling high wall 1 Drain pump output Remote controller power supply LED Optional power supply Power supply EEPROM Filter Option erro...

Page 98: ... Single operation by FAN button on remote controller is set up from remote controller DN 31 HA ON OFF input J01 YES NO Pulse At shipment Static input select Operation stop of main remote controller is permitted prohibited by input ON during operation Answerback of HA ON during alarm output ON when outdoor unit is defrosted ON during Real thermostat ON Compressor ON ON when operation mode is coolin...

Page 99: ...shaft of the suction grille to remove the suction grille Remarks Hook of suction grille Ceiling panel Suction grille Hook hole of ceiling panel Hook of fall preventive strap 2 Attachment 1 Hook shaft of the suction grille to the panel 2 Hook strap of the suction grille to the original position of the panel 3 Close the suction grille and slide the hooks outward to fix it 1 Detachment 1 Perform work...

Page 100: ... the mechanism of adjust corner cover may be damaged and not be removed 1 Detachment 1 Perform works of procedure 1 1 2 1 and 3 1 2 Remove the flap connector CN33 White 5P connected to the control P C board and then take off the lead wire from the clamp NOTE Remove the connectors after unlocking the lock of the housing 3 Take off screws M5 4 pcs fixing the ceiling panel 4 Push the temporary bracke...

Page 101: ...e removing If there is incomplete drawing of wire short or water leakage of the parts may be caused Drawing out port of lead wire Card edge spacer Card edge spacer Card edge spacer Ferrite core for fan motor Ferrite core for sensor lead Details of fan motor lead wire drawing Enlarged drawing Fix the lead wires with cord clamp so that the lead wires do not slacken at P C board side 2 positions Cord...

Page 102: ...s shown in the figure store PMV lead wire connected with connector assembly so that the connector positions under wire of the terminal Details of PMV lead wire drawing Details of sensor lead wire drawing Fix the sensor lead wires firmly with the cord clamp so that they do not touch with the caution plate of the terminal block and they do not slacken at P C board side 3 positions Arrange the clamp ...

Page 103: ...form wiring as original before being removed NOTE Pinch lead wire of the drain pump and float switch with lead wire fixing claws of the bell mouth and perform wiring along the guide 1 Detachment 1 Perform work of procedure 8 1 2 Take off the nut M6 nut 1 pc of the turbo fan NOTE Use a box wrench for attachment and detachment of the turbo fan If using a monkey wrench etc the other parts may be dama...

Page 104: ...ng bracket Concave part of ceiling panel Fan motor lead wire Holding metal fitting for fan motor lead wire Fixing nut for fan motor 2 Attachment 1 Mount the fan motor with the fixing nuts NOTE Tightening torque of turbo fan 5 9 0 6N m Apply looseness preventing agent as paints to the nut after tightening 2 Attach the fan motor lead wire holder NOTE For the fan motor lead wire fix the lead wire hol...

Page 105: ...ose band and slide it from the pump connecting part to remove the drain hose 3 Take off screws Ø4 10 3 pcs fixing the drain pump assembly and then move hooking claw 1 position of the main body from the drain pump assembly to remove the drain pump assembly 2 Attachment 1 Fix the drain pump assembly as original NOTE For fixing use a hooking claw 1 position and screws 3 positions When screwing be sur...

Page 106: ...cover and then pass them so that they are stored in this groove When mounting the piping cover check each lead wire does not hit PMV motor Details of sensor lead wire drawing As shown in the figure make draining shape on the lead wire Black once and then fix it with bind band Sensor lead wire Black Do not turn the head of bind band upward Sensor lead wire Red Sensor lead wire Blue Inner sparkle si...

Page 107: ... heat exchanger remove fixing band and fixing screws Ø4 10 3 pcs and then remove the heat exchanger 2 Attachment 1 Mount parts in order heat exchanger fixing band piping cover drain pan bell mouth electric parts box as original NOTE Arrange wires as original 2 Attach the removed connectors and wires as original 3 Connect the refrigerant pipe as original and then perform vacuuming Remarks 2 fixing ...

Page 108: ...t up Auto Manual or high ceiling exchange setup at installation time respectively Proceed with exchange of P C board assembly for indoor service in the following procedure After exchange work check again the setup for indoor unit No or group header follower units to confirm whether the setup contents are correct or not and then check also the refrigerant circuit system by a test operation etc Exch...

Page 109: ...ccessively 2 Specify the indoor unit No to be exchanged The fan of the selected indoor unit operates and also starts swinging in a model with flap 3 Using temperature setup buttons the item code DN can be moved up down one by one 3 4 First change the item code DN from Setup of filter sign lighting time In this time make a note of contents of the displayed setup data 5 In the next time change the i...

Page 110: ...ndoor units and proceed to Procedure 3 When the above methods cannot be used follow to the two cases below C In case that power of the indoor units cannot be turned on individually Case 2 a Remove all CN41 connectors of the indoor units in the same group except those of the exchanged indoor unit b Turn on power of the indoor units and proceed to Procedure 3 After Procedure 3 operation has finished...

Page 111: ...setup buttons set to the item code DN Lighting time setup for filter sign 6 Compare the contents of the setup data which is displayed in this time with contents noted in a memo in Procedure 1 and customer s information 1 If data is incorrect change it using the timer time buttons so that it matches with contents noted in a memo and then push SET button OK if display goes on 2 Do nothing if data is...

Page 112: ...ody sensor 0000 Standard 0000 Possible Type Item code 10 The initial setup value of EEPROM installed on the service P C board Automatic selection by connected outdoor unit Indoor unit capacity Item code 11 Setup data 0000 0001 0002 0003 0004 0005 0006 0007 0008 0009 0010 0011 0012 0013 0014 0015 Model Invalid 007 type 009 type 012 type 015 type 018 type 024 type 027 type 030 type 036 type Setup da...

Page 113: ... 43100322 Cover Panel Ass y 306 43107259 Grille Catch 307 43122089 Cover Joint For Joint 308 43122090 Cover Joint For Motor Location Part No Description No 309 43122091 Joint Kit A 310 43122092 Joint Kit B 311 43122093 Louver 312 43107261 Outlet Air Form 313 43100369 Panel 314 43107262 Fix Motor 315 43107263 Fix Motor 316 43160580 Lead Motor 308 307 314 302 315 316 309 311 312 313 305 303 301 306 ...

Page 114: ...21MH AP0151MH AP0181MH 234 229 206 230 215 213 220 232 219 216 217 211 211 207 229 227 225 226 222 237 235 202 245 223 221 228 231 201 241 236 209 210 203 204 206 230 215 213 220 232 218 246 214 212 0071MH 0091MH 0121MH 0151MH 0181MH 208 205 247 233 224 242 234 244 238 239 240 ...

Page 115: ...Nut 229 43107215 Holder Sensor 230 43019904 Holder Sensor 231 43179135 Band Hose 232 43149314 Sheet PMV 233 43139137 Rubber Cushion 234 43162056 Cover E Box 235 43177001 Pump Drain 236 43151289 Switch Float 237 43179126 Rubber Pump Drain 238 43166002 Remote Controller SX A1EE 239 43166004 Remote Controller SX A11JE2 240 43166005 Remote Controller EX W2JE2 241 43166006 Remote Controller WH H1JE2 24...

Page 116: ...ensor Service TA 403 43050320 Sensor Ass y Service TG 404 43160574 Terminal 4P 405 43160575 Terminal Block 2P 20A 406 4316V289 P C Board Ass y MCC 1402 Model Name MMU AP 0071MH 0091MH 0121MH 0151MH 0181MH 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 405 404 402 406 401 403 ...

Page 117: ...TOSHIBA CARRIER CORPORATION 2 CHOME 12 32 KONAN MINATOKU TOKYO 108 0075 JAPAN Copyright 2005 TOSHIBA CARRIER CORPORATION ALL Rights Reserved ...

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