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TROUBLESHOOTING

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3. following display D 1 8 3 4 Pressing the SET S007 key for one second or more gt Cie When the t r display appears temporarily release the SET S007 key and then quickly continue to press the same SET S007 key When the following display appears oil change time will be 0 Eike Quickly press the SET S007 key for one second or more E n d After the E nld display appears oil change time will be displayed n DU 0 hours Repeat the procedure if the change time does not return to 0 V 22 n Model Type Display No 03 Level 0 lt naja i a gt This function is used to display the outdoor unit model type It may also be used for the double speed setting fast forwarding the forced 3 minute off timer Operating the UP S005 and DOWN S006 keys causes the menu to change 1 Model type display Level 0 Outdoor unit model types are displayed in the following way Model Name Display ru 120 E Ell kol rr Ln ru mu Ef ft my ru ru Ex E3 ca 240 2 Double speed setting Level 0 Operating method Pressing the SET S007 key for one second in the model type display mode moves to the double speed setting display TEST WARNING LED light Releasing method Press the SET S007 key for one second in the double speed setti
4. Position in the diagram 3 RC B 3 4 Heat exchanger outlet E3 brown B 2 6 Heat exchanger netted 82 e ekme 1 82 s Room tmp intake TA elon 82 11 CNO78 DP red B 1 5 Indoor control board for AC motor models C pw AC IN 3 zm z 3 A E SE TRANS P_ SC EB SZ Ex 3 ex gt E in LM WI aowe z JS HUI Ny eti B ale a a 13 Sy mon PH Ld lie 3 s VW aziovwea E B IE e DP g 13 RYOO7 opt a T20 HEATER 26H FAN 12 11 7 6 OPTION B 3 4 RC B 3 L6 CHK pin CNS a Heatexchangerinot Et ed 83 s owmorspey Sd 82 11 Room temp intake TA yellow B 2 6 Outdoor Unit Electrical Wiring Diagram
5. Setting cancel operation method Setting range Propane G31 Natural gas G20 Natural gas G25 Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to OF D LL Tu zE Vv 39 6 Refrigerant setting Level 2 Rejection conditions Setting start operation method Setting change operation method r Example r rri nm re Li rri nm Setting cancel operation method Setting range Not set Normal 7 Generator setting Level 2 Rejection conditions Setting start operation method Setting change operation method Example AJF rri n re Li Setting cancel operation method Setting range Not set No generator Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005
6. V 42 13 Hot water setting Level 2 Rejection conditions Setting start operation method Setting change operation method a H n D Example salu Tale Setting confirm operation method Setting cancel operation method Setting range No discharge Hot water discharge thermostat off temperature a 14 Oil change display setting Level 2 Rejection conditions Setting start operation method Setting change operation method de ui 1 Lt Example drei EIO Setting confirm operation method Setting cancel operation method Setting range Inspection and error None Error only Inspection only 15 Single phase setting Level 2 Rejection conditions Setting start operation method Setting change operation method ra aju Example Setting confirm operation method Setting cancel operation method Setting range Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING
7. Forced engine adjustment valve position Forced outdoor defrost operation F Forced fuel gas solenoid valve closing 3 Forced cooling test run setting Level 2 Display Rejection conditions Operating method Operation details Releasing method 4 Forced heating test run sett Display Rejection conditions Operating method Operation details Releasing method Clalalt Heating test run in progress valve open all stop operation in progress automatic addressing in progress indoor unit operation in progress Press the SET S007 key for one second while forced cooling test run 1s not in progress TEST WARNING LED light Cooling test run is activated Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second during forced cooling test run The forced setting used in forced cooling test run will be canceled at this time TEST WARNING LED off ing Level 2 H E RIE Cooling test run underway valve open all stop operation in progress automatic addressing in progress indoor unit operation in progress Press the SET S007 key for one second while forced heating test run is not set TEST WARNING LED light Forced setting in progress display TEST WARNING LED light is shown during this time Push the SET S007 key for 1 second during forced cooling
8. H HOME pos3 3 In this state press the SET key S007 The display will change to amp right figure and the LEVEL LED D053 will light DOWN sET S008 S007 Oo Oo HOME pos3 4 Next press the UP S005 or DOWN S006 key to display HB ignition timing offset V 50 5 Make the correction Correction example a The adjustment value is 10 BTDC but the observed value was 8 BTDC Press the UP S005 or DOWN S006 key to set a correction of 2 in relation to the current amp amp ignition timing offset value i Display the current amp E ignition timing offset value and check it The current value is zero 0 The display for amp amp amp will be as shown at right i With amp amp ignition timing offset displayed press the SET key S007 for one second or more The TEST WARNING LED D052 will light and O LEVEL LED D053 will flash HOME poss iii Press the UP S005 or DOWN S006 key to set a correction of 2 in relation to the current value checked in 1i The display will show amp amp 2 right figure Caution The display example at right is an example for when the current value checked in 1 is zero 0 If the current value is 1 and a 2 correction is set in re
9. 034 Fam S010 SHORT EN ERE 558 SLP zaan Blans 52 AAA 00 l 134 oam pma np 718 ILONI LHA F inl ci n ENEE Ge i 5 a SE DAY 220N9 ul c ioa UD yon m Boos i e lo O N e d Oe z sH iro COO Coro is D E E A a 3 8 z E EE CS e om UP s305 CI LI 1c036 D052 J 1 037 SE Icozt LO OO LIJ CNO75 FG MAIN GH850M2E 900N3 LHA O0l9N2 wig MONI ZIONI 1Z0N9 JAZL g zal 191 val eg Ma neg ir zoea NCRM CN083 WHT JCM STOF S Al o WHT SL CNOIB DUT RAY WH WI D UNIT DN CN049 D BLK SNOW GRN 6LP BLU OLSL PS RED PS2 cnoze WHT Ne Gl le Kn EN En o DOWNkey S006 0 KE e HOME key S004 3 Switch and LED S004 S005 S006 S007 HOME UP DOWN SET e These switches are used to perform7 segment LED service display changes and type settings e These key switches are used to determine maintain operation of various items raise and lower items be
10. Or Flashing O Lit Off Warning Wireless Remote Control Device Detection Item Display Lamp Display Checked Indoor heat exchanger inlet temperature SENSo emor E1 Operating Timer Wait 01 Water heat exchanger unit anti icing sensor error i Indoor unit Indoor unit sensor Indoor heat exchanger outlet temperature F03 SE pos e errors sensor error E3 Aligrnate flashing F10 Indoor unit intake temperature sensor error Indoor unit discharge temperature sensor F11 error Compressor outlet temperature sensor error F04 Outdoor heat exchanger inlet temperature F06 sensor error Outdoor heat exchanger outlet temperature F07 Operating Timer sensor error NX 1 k l Outside air temperature sensor error F08 dar pu Outdoor unit sensor errors Compressor inlet temperature sensor error F12 Coolant temperature sensor error F13 Alternate flashing Compressor inlet outlet pressure sensor F16 error Hot water outlet temperature sensor error F17 for only models that discharge hot water Exhaust gas temperature sensor error F18 Clutch coil temperature sensor error F2 Clutch 2 coil temperature sensor error F21 N l Temperature sensor error for oil level Hos Oo EL measurement for only W MULTI Compressor oil depletion error for only W MULTI HO7 SJOJJOo JOSUBS Outdoor unit CH Operating Timer Flashing Operating x P 1 N Indoor nonvolatile memory EEPROM error 1 Indoor unit Operating Re
11. After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key Setting confirm operation method After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 04 Note False setting will cause a serious malfunction to the device Retain the default setting in principle If a setting change is necessary due to the exchange of the Outdoor main board or nonvolatile memory etc confirm the engine type and make sure not to make a false setting Model type 1 setting Level 2 Rejection conditions Setting start operation method Setting change operation method alr roy Lj MJ Example r rr L DNE Setting cancel operation method Setting range 3WAY MULTI Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key Setting confirm operation method
12. Temperature C Q Compressor outlet temperature sensor exhaust gas temperature sensor generator temperature sensor 20 18 16 14 12 10 Resistance kQ O N A Oo 20 30 40 50 60 70 80 90 100 110 120 130 Temperature C V 35 Coolant temperature sensor Resistance kQ 40 50 60 70 Temperature C Cc x o c D S 2 o o D Resistance kQ 20 30 40 50 60 70 80 90 100 110 120 130 Temperature C V 56 10 Checks Prior to Automatic Addressing When an outdoor unit alarm is displayed perform the following checks after troubleshooting l i Yes Indoor outdoor power 1 1 Indoor and outdoor units turned on Yes source Turn on the power 2 Indoor outdoor Have the inside outside control wires been laid Is there a control wires break or disconnection of wires connection Was a high voltage 200 V AC etc applied to the control wire circuit Has a fuse on the control board blown No 3 1 Confirmation of each outdoor and indoor unit There is a problem with the wiring of the power cable and indoor outdoor control wires 2 3 Turn off the power check and repair faulty wiring and then connect all indoor outdoor control wires to the backup control board and controller 3 Does the setting of connected indoor unit count No 10 Outdoor settings 3 1 on the outdoor control board match the act
13. 12 Forced outdoor defrost operation Level 2 Display Rejection conditions Operating method Operation details Releasing method oiieigdiEIt When there is some sort of defrost control automatic scheduled forced has begun Current mode can also be set in cooling Press the SET S007 key for one second when forced outdoor defrost is not set TEST WARNING LED light Switch 4 way valve to cooling mode and perform operation At this moment fans of all indoor units are stopped Forced setting in progress display TEST WARNING LED light is shown during this time If there is no operating signal all indoor units stop the actual defrost control is delayed When the next operating signal enters defrost control forced cooling mode operates Press the SET S007 key for one second or more when forced outdoor defrost is being set The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off 13 Pressure sensor ignored Level 2 Display Rejection conditions Operating method Operation details Releasing method Did oF None Press the SET S007 key for one second TEST WARNING LED light Fix the value of pressure sensor Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second when pressure
14. After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 02 V 41 10 Model 2 setting Level 2 Rejection conditions Setting start operation method Setting change operation method HE BE Setting confirm operation method Lt ca Example Lt E Setting cancel operation method Setting range Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 02 0 Standard 1 W MULTI 2 3WAY MILTI ra Lt c3 ru rure nr H LL IL ra 11 Region setting Level 2 Rejection conditions Setting start operation method Setting change operation method re Li Flalr Example Flalr Setting confirm operation method Setting cancel operati
15. Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 83 P13 Refrigerant Circuit Error 3WAY Error detection method The indoor unit outputs this warning when it determines that a compressor outdoor solenoid valves system refrigerant should be inspected For detailed inspection procedure see P13 Refrigerant Circuit Fault W MULTI The system stops and there is no automatic reset when this warning is output Troubleshooting 1 Pressure For adjustment of the pressure sensor see adjustment sensor procedure section F16 inspection 2 Use the No 4 test mode v_open valve open to equalize the Check for refrigerant Inspect pressure to assess whether amount of refrigerant is extremely leaks and repair system low when it is lower in pressure than saturated pressure at refrigerant ambient temperature Assessed as out of gas when extremely low Out of refrigerant gas 3 Inspect the compressor Use the instructions in P26 Clutch Connection Fault to adjust operation and wiring of clutch 1 and 2 Any problems 4 Inspect refrigerant oil Not contaminated 5 1 6 1 Replace the compressor and check the refrigerant oil in the replaced compressor for contamination P P Contaminated 5 Replace compressor completed if OK 1 After
16. Error detection method When the starter power primary current meets the following conditions an error is determined upon 5 consecutive occurrences in 1 hour Not during cranking When 40A or more is detected for 0 1 second or more Not during cranking When 26A or more is detected for 0 2 second or more Not during cranking When 3 8A or more is detected for 5 0 second or more Note 1 The starter power source magnet switch 52S operation is as follows e 52S turns ON upon operation signal input If no abnormalities occur thereafter A15 A16 A17 this stays ON and turns OFF upon stop signal input Turns OFF when error occurs Troubleshooting Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Reference Electrical Wiring Diagram C D 1 2 1 1 2 1 2P 18 black 2P 17 white ATR 700K1 AF 050708 ALTEC Mw ww OOV div OV ON ON IV 18 1 1 1 Reoccurs even when disconnecting the two wires from Yes 1 2 Starter power the starter power source terminals No 2 1 source Reoccurs even after disconnecting control board con Yes Replace control board DC current 1 2 nector 3P yellow CN063 Ignore abnormality A17 if it Replace starter occurs NO power source 2 Is ei
17. Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Reference Electrical Wiring Diagram A D 6 IV 54 F01 02 03 10 11 Indoor Unit Temperature Sensor Error Error detection method An indoor unit temperature sensor error constantly detects any broken wires or short circuits and an error is determined when error conditions are met once Error conditions are given below 1 With indoor unit connected Display Gonso pania Broken wire detection Short circuit detection resistance resistance Indoor heat exchanger inlet temperature sensor E1 330kQ or more Less than 300 Indoor heat exchanger outlet temperature sensor E3 330kQ or more Less than 300 Indoor unit intake temperature sensor 270kQ or more Less than 240 Indoor unit discharge temperature sensor 270kQ or more Less than 240 2 With water heat exchanger unit connected Broken wire detection Short circuit detection Display Sensor name s resistance resistance Water heat exchanger refrigerant inlet temperature sensor E1 330kQ or more Less than 300 ro ET heat exchanger anti freeze sensor 330kQ or more Less than 300 Water heat exchanger refrigerant outlet temperature sensor E3 330kQ or more Less than 300 Hot and cold water inlet sensor 270kQ or more Less than 240 Hot and cold water outlet sensor 270
18. and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key Setting confirm operation method After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 02 rnm rm Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key Setting confirm operation method After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 03 V 40 8 Engine setting Level 2 9 Rejection conditions Setting start operation method Setting change operation method D H rri 1 1 Example rr ra ra n Setting cancel operation method Setting range Not set Not accepted during indoor operation Press the SET S007 key for one second
19. uo vi mi IN si 2 ba SE 1 uh S 3 ven du POW PCB ASSY ster s EB POWW2E fios fe gin de ERLE Ein niin Hei Bil B war EE TRU BLCK i eere LE FC REO WHT n ELE EB PELA en LEI T II DI WW LET THa THI4 amp bie TUELLE er JE ELT LET IL LI ne LEEBEELT LET LEI LET CELLET TELLE CELLET CELLET imas WP Se RT ERR cgr DS m ops ER WAT GLK BL d D RED LO Ca Lu BED Ge Gu E INE ERN WHT GHT GLK RED eat ls BLK latius MAIN PCB ASSY 2 P A amp E P z ds off SEIN En 1 d d s OB ct du pa de dB ch ei di a n 830 TH CRA Cay 82 Ves ES Tha THIA GR S Jes CT Hp EEL OEE Ip Em l In Zeg I GEEL ER EERE DT CEL CEL CEL g d j S d da d 4 It I Li SS S SS DEEN TE jun D G U Fi mom spE D I Del Ray PCE ASSY Wut Syst D WEL SPWHD RAY
20. Model name display 1 second e Version display 1 second Example 5 5 5 B AIB All segments light Example 3 5 52 Model name display Example i Version display When the power supply is turned on while pressing the SET S007 key the contents of the nonvolatile memory can be cleared Memory clear procedure FT 1 Turn on the power supply while pressing the SET S007 key After 1 second or more E r will be displayed 2 Press the SET S007 key again Activating the nonvolatile memory erase function at this time will display Enid 3 Check for power on display If the E nld display fails to appear repeat the aforementioned operation until it does appear When the memory is cleared at this time all the contents of the nonvolatile memory are reset to the initial state G Outdoor unit normal display Example Io ga Number of indoor units 20 units System address 01 5 Operation Unit Specifications D Operation Three keys DOWN S006 UP S005 and SET S007 are basically used to perform all display and setting operations Pressing the HOME S004 for one second activates return to the normal display at any time this key is installed in a slightly separated position Q Unified operation sequence Category selection is performed with the UP S005 and DOWN S006
21. Outdoor unit setting CO EO Outdoor unit setting EO ditto ditto Refrigerant type Engine type V 31 Indoor Unit Setting No 6 Level 0 lt nlal ala gt Key operation is used for indoor unit settings operation impossible when connecting the water heat exchanger n 1 Indoor unit setting display Level 0 Shows menu selected indoor unit status display c EIE n 2 Outdoor unit setting item select operation Level 1 Pressing the SET S007 key in the indoor unit setting display mode activates the following display Occurs only upon completion of initial communication Example t Example Indoor No 1 unit data code 1 with gas tube valve Operating the UP S005 and DOWN S006 keys in this mode makes it possible to select setting categories Pressing the HOME S004 key or conducting no operations for 10 minutes activates a return to the HOME display 3 Outdoor unit setting operation Level 2 Setting start operation method Press the SET S007 key for one second in the setting data code select mode This activates the forced setting in progress display TEST WARNING LED light Setting change operation method After entering the setting start operation mode operating the UP S005 and DOWN S006 keys make it possible to change the setting details of the selected setting categories Setting confirm operation method After e
22. SANYO TECHNICAL amp SERVICE MANUAL Gas Heat Pump Air Conditioner Type M2 Series TROUBLESHOOTING 92 Applicable Models W MULTI SWAY MULTI G POWER W MULTI Reference No SM7110015 OO Applicable models O lt W MULTI gt SGP EW120M2G2W SGP EW150M2G2W SGP EW190M2G2W SGP EW240M2G2W lt 3WAY MULTI gt SGP EZ150M2G2 SGP EZ190M2G2 SGP EZ240M2G2 lt G POWER W MULTI gt SGP EGW190M2G2W 409 Table of Contents O Symptoms that are not malfunctions unne ennen ee nenenenenenennnnnnnnnnnennnnnenneenen I 1 Before troubleshooting W MULTI series eeeeeeeeeeeeerrnnnne II 1 1 W MULTI series system overview eeeeeeeeeeeeeeeneennnnnnnenennnnnnnnnn II 1 2 About backup operation during maintenance work II 2 Malfunctions and Displays sseeeeEEtEEEEEEEKEEEKEEEEEEEEEEEEESERSESEEEESSEEEEEEEEEEEEEEEEKEEEEKEKEEEEEESER III 1 1 Malfunctions without any display eeeeeeeeeeeeeeeeeeeenennnnnn III 1 2 Remote controller alarm display eren M 2 Error Display and Troubleshooting eere IV 1 1 Precautions before Troubleshooting eren IV A 2 About the Error Detection Procedure esee IV 1 3 Engine Start SEY meets IV A 4 II
23. SR7 9 12 16 18 25 36 48 60 8P ceiling panel LDR9 12 16 18 25 7P ceiling panel XDR4 9 12 16 18 25 36 48 60 7P ceiling panel XM7 9 12 16 18 The following models short circuit this input upon shipping to prevent this error Basic circuit PNL Relay connector 4P green B d Short circuit Indoor board a Applicable models FR7 9 12 16 18 25 front panel TDR12 16 18 25 36 48 ceiling panel Basic circuit PNL green Short circuit Indoor board Applicable models All indoor units not listed above Q Troubleshooting Is a ceiling panel connection relay connector 7P red or 8P red 1 1 or 9P red connected Or is a short circuiting connector 4P Yes Replace indoor control 1 2 Disconnect the indoor board connector PNL green CN080 board Conduction between No 1 and No 3 in socket O 1 3 Poor connection between connector PNL green CN080 and ceiling panel or poor connection broken wire between connector PNL green CN080 and short circuit connector Repair e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 79 P10 Indoor Uni
24. Sy wol I ayn Ie e o el H elleie T oo a SS o ll Fraa ll l voffie el I Hfellelwliwl SILSILO ILE LE an a II all o gt roe oan ele n Ell Ell E mime geo A oo oo t to olle D SIERENS e N LA EN a EN 1 Data from the connected indoor units is shown when the most recent error log data is displayed Nothing else will appear However after completion of initial communications Note Although digit displays are presented in the same way as during the normal display there may be declines in precision 7 Error alarm code list Error Code A00 Error Error alarm contents No error occurred System A Engine system protective device operation Engine oil pressure error Engine oil error Engine high revolution error Engine low revolution error Ignition power source error Engine start failure Fuel gas valve error Engine stall High exhaust gas temperature Engine oil level error Throttle error Engine oil presure switch error Starter power source output short circuit Starter lock CT error starter current detection failure Low coolant temperature High coolant temperature Coolant level error Coolant pump error Crankshaft angle sensor error Camshaft angle sensor error Clutch error Flameout error Catalyst temperature error for only models with catalyst option Generator error for only G POWER W MULTI Conver
25. ngine easure compression Wash valve and adjust valve clearance If still NG replace engine head 5 3 Air cleaner visual inspection Clean replace Keep under S Ignition timing ok observation Adjustment During cranking is there 180 V DC between power board connector 7P Solenoid de CN041 pin 1 and pin 3 And between pin 5 and pin 7 Poor connection contact crimping or broken wire for wiring from power board connector 7P white CN041 to fuel gas solenoid valve relay connector 4P 1 white repair Yos Replace power Is 200 V AC applied between power board connector 3P white and board CNO02 No 1 No 2 Any poor connections poor contact poor crimping or broken wires in Crank cam 74 the wiring below Wiring from outdoor main board connector 3P white angle CNO015 to crank angle sensor connector Wiring from outdoor main No 8 1 board connector 3P black CN016 to cam angle sensor connector A01 Troubleshoot engine oil pressure trouble Inspect ignition coil coil igniter and ignition wiring e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e 3 1 1 Remove
26. viii Wiring a A bus system shall basically be used for multiple systems Figure 3 There should be no more than 16 branch locations Figure 3 Make sure wiring between branch locations and branch points is 2 m or more Figure 3 If there are more than 17 branches reduce the number of branch locations Figure 4 Putting 2 refrigerant systems to wiring system etc Not include in branch within m Figure 5 Use up to three wires for a branch Four or more wires are prohibited Figure 6 A branch after the branching of a wire is prohibited Figure 7 Loop wiring is prohibited Figure 8 b A daisy chain system shall basically be used for a single system Figure 9 Terminal resistor When linking multiple outdoor units keep the terminal resistor of two units SHORT and set OPEN for the other units If a communication error occurs keep the terminal resistor of the three units SHORT V 62 3 Remote controller wiring Wiring Between remote controller and indoor unit non polar 2 line format Between indoor units non polar 2 line format e Cable thickness 0 5 mm to 2 mm Cable length Total wiring length is max 500m If wireless remote controller exist within group RCS BH80BN WL SH80BN WL cable is up to 400m Total wiring between indoor units is up to 200m 0 0 Le Max 200m MANN Indoor unit 1 Indoor unit 2 Indoorunit3 Indoor unit 8 E N Remote controller Cautions
27. 5 Reference Document operation wiring Yes Set en one unit to ON With link wiring is the outdoor main board terminal resistor switch S010 set to ON for several units High voltage AC200V etc applied across indoor outdoor operation wire circuit No 3 1 Did the number of indoor units increase or decrease after auto ing Perform pre check before auto addressing See 5 Reference Document In the remoto controller detailed settings mode check the indoor unit address item code 13 Any undetermined 99 or duplicated addresses for indoor units Is the inspection pin CNO62 CNO71 or TEST pin CN064 on Eliminate short circuit the indoor control board short circuited 2 2 g Is an option board CNO60 or wireless remoto controller 3 Indoor unit count CN041 connected to the indoor control board Does E04 disappear several minutes after disconnecting said connector on the indoor control board When controlling with two remoto controllers and the wireless remoto controller is the No 4 5 main set the other remoto controller as the main Replace the removed option board or wireless remoto controller operating unit wiring and all Is the LED D002 blinking on the indoor control board Ivo No Nonvolatile memory EEPROM on the outdoor main unit is not inserted is incorrectly inserted 4 6 or is defective gt Correct or replace nonvolatile memory and program it in the remoto controlle
28. A profile of error data is as follows Error code Outdoor unit operation data at occurrence of error Outdoor unit operation data at occurrence of error Outdoor unit warning data 5 seconds before occurrence of error Outdoor unit warning data 10 seconds before occurrence of error Outdoor unit warning data 15 seconds before occurrence of error 1 Display at time of no error Level 0 The following display appears DIGIE RIE EC AO FO n 2 Display at occurrence of error Level 0 Displays current error code ninm amp G R RIG g Example of engine oil error 3 Error reset operation sequence During display of current error code pressing the SET S007 key for 1 second activates the outdoor unit error reset When the cause of the error has yet to be removed an error will occur again immediately after reset Resetting cannot be performed under the following circumstances Reset cannot be conducted under the following situations e Indoor unit error Indoor unit error reset requires that the indoor unit be turned off e Oil use time Oil use time reset must be conducted with the Oil Use Time Display e All Engine oil level fault cannot be reset Error continue until the oil level returns to normal V 15 4 Error code temporary stop cause code display Level 1 During displays with no error and displays when error incidents occur pressing the SET S00
29. Repair leak and Out of gas Determine using compressor outlet pressure charge gas compressor inlet pressure and indoor outdoor electric valve Yes Inspect indoor Any symptoms of pump down Determine with indoor coil unit tubing temperature No Inspect outdoor unit tubing Adjust outdoor solenoid valves Use trial operation mode Yes Replace outdoor to check that the solenoid valves operate normally in main board each operating mode cooling heating and measure tube temperature around solenoid valves to assess For information on solenoid valve operation in each operating mode see the sections Control functions Operating control in the Outdoor No 4 2 unit manual Does the solenoid valve operate normally Does the power board CN013 output the solenoid power supply Repl voltage AC 200V No GE power Any poor connection and broken wires in wiring between the ves Repair wiring power board and the relay board Adjust the outdoor main board In No 4 test mode when v_open valve open is there a 4 4 Inspect outdoor solenoid valves For three way device drive output voltage 12 V DC from discharge valves 1 1 1 2 discharge valve 2 suction valve 2 1 and 2 2 9P white CN018 Discharge valve 1 1 1 2 between No 3 9 Discharge valve 2 between No 4 9 Suction valve 2 1 2 2 between No 6 9 Replace outdoor Does suction valve 1 output a drive voltage DC 12V during main board cooling operation Suction va
30. The system stops and there is no automatic reset when this warning is output When there is no difference between compressor outlet and inlet pressure lt 0 2 MPa 3 minutes after the engine was turned on the engine stops and an error flag is set An Cooling Circuit Fault is assumed when the error flag has stopped the engine 5 consecutive times in 1 hour This indicates that the difference in initial pressure and after 3 minutes is 0 2 Mpa or less Q Troubleshooting 1 Turn off the outdoor unit be sure to do this before work Inspect the compressor Use the instructions in A25 Clutch Trouble to adjust the compressor lock Does it lock Adjust both clutch 1 and 2 See section on page Use the instructions in P26 Clutch Connection Fault to adjust 26 operation and wiring of clutch 1 and 2 Any problems No Keep under observation 2 Replace a compressor that is locked Replace Measure the amount of chiller oil in the compressor when it Yes 3 1 compressor is removed Fill the new compressor with an equal amount of chiller oil new oil before attaching it to the outdoor unit using liquid normally handled by a device 3 Clean the cooling ces Use our Replacement material as a guide to cleaning the is Proosse completed 9 system using liquids that are normally present in the system H e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3
31. automatic addressing is in progress Display Display contents Display examples Remarks sequence 1 Number of indoor units Lu Outdoor unit address l System address Number of indoor units Indoor units 20 units Outdoor address It is always O System address System 01 2 Automatic addressing R a a Mode 1 H Ri dla Mode 2 Heating t Alala Mode 3 Cooling Heater Remaining Power on Time Display Level 0 Conditions 5 hours yet to elapse since turning on outdoor unit power supply Engine yet to be operated since turning on outdoor unit power supply Compressor outlet temperature is 60 0 C or below Display EIH 5 H Remarks This display indicates that crank case heater remaining power on time is 5 hours This figure 5 decreases by one for the passage of each hour 4 3 returning to the normal display after 5 hours 3 Minute Off Display Level 0 Conditions Engine startup forcibly delayed by 3 minutes Display 7 segment display flashes at 1 second cycles Excluded when the No 9 indoor unit status is displayed Warning Display Level 0 Conditions Warning being issued Display TEST WARNING LED flashing Warning contents displayed on 7 segment LED ex Do Oil check warning Error Display Level 0 Conditions Error being issued Display TEST WARNING LED flashing Warning contents displayed on 7 segment LED When a multiple number of error occur each error will be displayed
32. broken wires in wiring between Lg fuel gas 3 MEE relay connector and the solenoid valve or replace it 1 4 Poor fuel gas solenoid valve operation Replace after checking for any foreign matter blocking the fuel gas passage etc 2 Is 180 V DC applied between the power board connector 7P white Engine 2 1 CNO41 pin 1 and pin 3 as well as between pin 5 and pin 7 2 2 Poor connection contact crimping or broken wires in wiring between the power board connector 7P white CN041 and fuel gas solenoid valve relay connector Repair or replace 3 Repair replace Gas Yes wiring solenoid Check gas valve feedback wiring for poor connection and broken wires Feedback Defective power 3 2 Repair the outdoor power board Did this solve the problem board Replace outdoor main board e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 12 A08 Engine Stall Error detection method During engine operation complete combustion when engine revolution speed lt 100min 1 continuously for 3 seconds the engine is stopped momentarily and an error flag is set An Engine Stall con
33. measure DC OV Switch emm f At engine start does the oil pressure measure 49kPa 0 5kg cm or more switch defective Replace oil filter Is the oil filter clogged Engine is No defective E Does any of the wiring below contain broken wires or suffer from poor Wiring connection contact or crimping Wiring from outdoor main board connector 2P red CN012 No 1 to oil pressure Wiring from outdoor main board connector 2P red CN021 No 1 to power board connector 2P red Replace outdoor CNO038 No 1 Wiring between switches Wiring from outdoor main board main board connector FG CNO075 to terminal on starter power supply e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 ndoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e 1 1 Oil tank top view Storage side Tank side 2 1 gen o S 7 0 Gi 2 7 o O o a 5 0 D c UI 120 150 190 240 models 3 1 With oil pressure DCOV No oil pressure DC12V A02 Engine Oil Error Error detection method When the oil change hours exceed the oil change hours EEPROM setting or after error is reset for said status when the oil change error hours
34. page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Reference Electrical Wiring Diagrams A B 3 coolant pump Electrical Wiring Diagrams D E sensor e 2 1 e Three way electric coolant valve and electric cooler three way valve inspection 1 Operate engine and measure the surface temperature of tubing flowing to the 2F outdoor heat exchanger 2 Confirm that coolant temperature is rising and that coolant is flowing toward 2F e 2 3 First opened 70 C Fully open 80 C Air discharge hose should not emit large amounts of bubbles Engine discharge part coolant sensor attachment Air bleed cock E120 and 150 types Tubing after engine outlet before wax valve Air bleed cock 190 and 240 types e 3 1 e Coolant temperature sensor resistance value See thermistor characteristics chart for details 40 C 1 2kQ 50 C 8790 60 C 6420 70 C 477Q 80 C 3610 90 C 2270 100 C 216Q IV 22 A21 Coolant Level Error Error detection method The start up sequence or engine operation is halted and an error flag thrown if the coolant level switch is off for a 5 second interval during engine start up maximum of 3 minutes or engine operation complete combustion A Coolant Level Trouble is assumed when the error flag has stopped the engine 5 consecutive times in 1 hour at startup time Coolant level float switch turns off when the remainder in the res
35. 1 ee Ke on ks o E02 Remote Controller Transmission Failure Error detection method When the remoto controller controller itself cannot transmit Or when a self transmitted signal cannot be self received or changes an error is determined Breakdown of remoto controller itself Q Troubleshooting 1 Remoto controller group wiring 1 2 Is this indoor unit group controlled o Any short circuit or broken wires for remoto controller group IS wiring 1 white and 2 black Is an option board CNO60 or wireless remoto controller i CN041 connected to the indoor control board No 2 4 Does E02 disappear several minutes after disconnecting said connector on the indoor control board When controlling with two remoto controllers and the wireless remoto controller is the main set the other remoto controller as the main Replace the removed option board or wireless remoto controller operating unit wiring and all 2 4 Short circuit or misrouting in indoor unit remoto controller wiring No Replace indoor The designation is used in the table to indicate indoor boards for DC and AC motor models There is no TEST pin on the indoor board for AC motor models See 5 Reference Document for checking remoto controller For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC mo
36. 15 minutes 5 1 Set No 4 Forced compressor oil replenish for the outdoor main board where the no oil failure occurred Check that the ORVR oil recovery valve solenoid valve unit of the outdoor unit where Forced compressor oil replenishment No 2 1 was set operate Do they operate 2 Sensor Is the oil level temperature sensor correctly installed The sensor must not be disconnected or lifted N Secure or correct sensor H installation 3 1 Is the oil level temperature sensor normal Temperature sensor check TH12 resistance Replace temperature NO sensor Note The following solenoid valves are normally powered Use the following procedure to check these solenoid valves Balance valve BALV Connect a voltmeter and conduct a forced compressor oil supply Flashing valve FLSV Connect a voltmeter and conduct a forced compressor oil supply The balance valve is turned off after about 10 seconds The flashing valve goes on Oil recovery valve ORVR Connect a voltmeter and conduct a forced compressor oil supply Is a voltage for powering the relay input to the relay board RAY GHW280J2E Yes 3 3 Voltage check during solenoid operation 12 V DC during operation Balance valve BALV between 9P white 9 and 5 Flashing valve FLSV 9P white 9 and 3 No 3 2 Oil recovery valve ORVR between 9P white 9 and 4 5 1 eee Repair wiring Any poor connection and broken wires in wiring
37. Are sparks emitted properly Inspect ignition plug Replace high Ignition coil cam angle sensor and crank angle sensor tension cord Inspect zero governor see A06 3 1 OK 7 1 Ignition timing see A06 5 4 NG Adjustment T Does the fuel regulating valve step motor coil resistance measure Fuel gas about 1200 Disconnect relay connector 6P 6 and measure between regulating No 1 red and No 2 No 3 and between No 4 orange and No 5 No valve 6 NG Replace mixer Is 4 V DC applied between outdoor main board connector 6P red 7 2 CN065 No 5 and No 1 No 2 as well as between No 3 No 4 when turning the power ON during positioning Does the throttle step motor coil resistance measure about 1200 8 2 Disconnect relay connector 6P 2 and measure between No 1 red and No 2 No 3 and between No 4 orange and No 5 No 6 o Wiring 5 6 Engine 1 1 K E 9 e m 1 T _ Replace mixer Is 4 V DC applied between outdoor main board connector 6P black Replace mixer Replace outdoor main board qo No 5 No 6 when turning the power ON during positioning 8 2 CNO66 No 1 and No 2 No 3 as well as between No 4 and No N e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Conver
38. At magnet switch ON is there about AC200V between magnet switch Ms Wiring connection contact poor or broken wire with wiring between magnet switch and starter power source relay connector 2P 4 white Repair wiring 1 1 1 2 1 4 4 2 3 4 3 1 3 3 3 4 3 5 Is there about AC200V between magnet switch No 1 and No 5 Check primary wiring Repair Replace magnet At magnet switch ON is there about AC200V between magnet switch A1 Switch and A2 Wiring connection contact poor or wire broken between power board connector 3P yellow CN028 and magnet switch Replace power Yes board Is there about AC200V between power board connector 5P yellow CNO002 No 1 and No 3 Check relevant No wiring filter board 4 3 Starter At magnet switch ON is there DC10V or more between starter B starter terminal and engine ground relay Outd Ge board At cranking timing is there DC10V or more between starter S terminal Replace startej Sp At magnet switch ON is there DC10V or more between starter power source positive and negative Wiring connection contact poor between starter power source positive terminal and starter B terminal or between starter power source negative terminal and engine ground Repair wiring At cranking timing is there DC10V or more between power board connector CN084 and outdoor main board connector FG CNO75 4 6 Wiring connection contact poor from power board
39. DOWN S006 keys i in this mode makes it possible to select the date code Outdoor unit setting operation Level 2 Setting start operation method Setting change operation method Setting confirm operation method Setting cancel operation method Press the SET S007 key for one second in the setting data code select mode This activates the forced setting in progress display TEST WARNING LED light After entering the setting start operation mode operating the UP S005 and DOWN S006 keys make it possible to change the setting details of the selected setting categories After entering the setting start operation or setting change operation completed press the SET S007 key for one second This cancels the forced setting in progress display making it possible to once again enter the outdoor unit setting item selection operation mode TEST WARNING LED off Press the HOME S004 key for one second before confirming setting This returns operation to normal TEST WARNING LED off The setting details will not change when pressing the HOME S004 key for 1 second during outdoor unit setting item select operation V 28 4 Outdoor Unit Setting List 1 No Dae CN Rmi Outdoor unit setting 00 30 Outdoor unit setting 30 Outdoor unit setting 01 ditto Outdoor unit setting 02 Outdoor unit setting 03 Outdoor unit setting 04 Outdoor unit setting 05 Outdoor unit setting 06 Outdoor unit sett
40. Diagram page VI 7 Reference Electrical Wiring Diagram D F 3 4 CL2 clutch 2 CL clutch IV 58 F29 Indoor Nonvolatile Memory EEPROM Error Error detection method e An error is determined when the nonvolatile memory EEPROM on the indoor water heat exchanger unit control board cannot be read or written Q Troubleshooting 1 D Is the nonvolatile memory on the indoor water heat exchanger 1 1 Nonvolatile memory unit control board correctly oriented in the IC socket and 1 En Defective EEPROM Replace the nonvolatile memory provided with the servicing 1 2 board Does this eliminate the error Replace indoor control No board e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See the instructions supplied with the servicing indoor board for procedure on replacing indoor non volatile memory EEPROM and the indoor control board IV 59 F30 Real Time Clock RTC Function Error Error detection method e An error is determined when the standard pulse every 1 second from the outdoor main board clock function RTC cannot be read Q Troubleshooting Clock 4 4 Tum OFF the outdoor unit then turn ON and observe If the error re
41. E24OKIE LES o D ET T1 ie Ot ER Ms 3 FG anl DI Dni CT ise poA d ex H Q Troubleshooting 1 Engine 3 Zero governor 4 Gas solenoid valve Gas adjustment valve En n Has the fuel gas pressure dropped Is the fuel empty Measure the pressure at the gas pressure measuring port during cranking Is the gas solenoid valve SW S002 on outdoor main board on the NORMAL side Are sparks emitted properly Remove plug and check independently Or check with timing light Any poor connections poor contact poor crimping or broken wires between ignition wiring and outdoor main board connector 6P white CNO010 and 6P black CNO11 Inspect ignition plug Inspect zero governor During cranking is there DC180V between fuel gas solenoid valve relay connector 4P 1 white No 1 and No 2 and No 3 and No 4 c During cranking is a voltage of DC180V or more applied across terminals of fuel gas solenoid valve coil For gas type C models go to 4 4 wv NORMAL Poor wiring connection crimping or broken wire between fuel gas solenoid valve relay connector 4P 1 white and solenoid valve Repair wiring Poor fuel gas solenoid valve operation Replace after checking for any foreign matter blocking the fuel gas passage etc No abnormalities go to 4 5 Throttle step motor and fuel gas regulating valve operating properly 9
42. Is the outdoor main board S010 terminal resistor switch set to ere ON OFF 1 4 Indoor outdoor operation wiring broken or short circuited vo S Replace indoor water heat exchanger unit control board e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 38 E06 Outdoor Unit Receive Failure from Indoor Unit Error detection method An error is determined when no indoor unit transmission response is received for 3 minutes Indoor unit power is OFF Indoor unit DISP pin CN063 CN072 is short circuited e Indoor outdoor operation wiring is short circuited or broken Indoor unit signal output board option board is defective Q Troubleshooting 1 Indoor power source 2 Indoor outdoor operation wiring Yes Turn power ON Is the indoor unit power OFF No 2 1 Yes Repair wiring Indoor outdoor operation wiring broken or short circuited See 5 Reference Document 3 1 Is the DISP pin CNO63 CNO71 or inspection pin CNO62 CNO71 on the indoor control board short circuited No 3 2 Is an option board CNO60 or wireless
43. JHOS JH04 mam LLT j HOND W I vore A007OC 1003 WOU AA rem HI ug N an 2202 uS o on fe AN ROG JPQ01 JPooa Z LEON ICON OOEN Ez Zeo 1608 Ge J 6609 L 010 au e c e a a M I H PCB Assy RE LLI N N LO LO e L O Oo a GENE CN00 8703 0505 R013 AN C131 u R015 2008 gogy s ae As LL peo 00 isou Q 0038 C066 1C016 C060 AA Ca pat 4879 ezoa gs04 N023 BLU ROM aac g 3 mo RELAY Do2 a 0016 BLK 8 a C094 ay 8 o Ou no voiu sais Z e Qo 5 CHL eoo on ge Cen S72 g 3 Sch Sr 1604 E seg sn Ge 1909 oe Web d WHT CND x BLK Se WHT CNO1 0044 POWER C084 wa CN044 EU FLASH T GEN DEB SER LED 4 Indoor control board for DC motor models C380 E CN310 OS TC m zj ae F 1 F301 maen E N ene D 302 13 mut Our Gast g oy os pee e a E SOL Fi nan as Anm ek feb ge ail Se E 3A E S 55 5 EE ag El 16040 z 3 JE E Ean EH B 1030 C080 Eu i uh 7 Om a 16001 L beer ee 5 z
44. LED off Press the HOME S004 key for one second before confirming setting 00 to 99 Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 03 Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 01 1 Single phase n E ra n C zi V 43 16 Compressor setting Level 2 Rejection conditions Setting start operation method Setting cha
45. Link wiring Link wiring not available when main water heat exchanger No 1 3 board unit is connected Is the S010 terminal resistor switch on one outdoor main board set to ON and the remainder to OFF ue ONP No Set only one unit to ON Is the outdoor main board S010 terminal resistor switch set to Set to ON OFF 1 4 Indoor outdoor operation wiring broken or short circuited See 5 Reference Document No 1 5 15 Replace outdoor main board e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 E08 Duplicated Indoor Unit Address Setting Error detection method An error is determined when the Indoor unit address is duplicated In the remoto controller detailed settings mode the indoor address setting is duplicated e Several indoor units with no indoor unit address setting have the DISP pin CN063 CN072 short circuited Q Troubleshooting 44 ls the DISP pin CN063 CNO72 on the indoor control board Yes Eliminate short circuit short circuited No 1 2 4 2 Perform pre check before auto addressing See 5 Reference Document E08 remains after rep
46. SE NOTE 1 i Bost ES a e x ix EE lie T i T GEN 1 O HOEDEN HD PT D DIS CE DIST LEJ DIS Sogxr EN ach P AU H2 i 1 ocios Af te d Hes A D I ofte Hb dis UMP d i GARE b i nim do Gio gio So WED RED 2P 2P hw win BLK em Gi HEE EI EIEE E C gx B AC23070V e NO WHT YEU o ehizlsisistel 8 BER i vm CN igp H AC200 0V iP AC OUT Eadie i BLU POW PEB ASSY CNOIS a T H Oasen 15022 ES i dri i ER S 3p ap Bp 3P AP P ZE 7p pieni T ma NK d WAIN PCB ASSY RE TH20 OEE li AM ML ds di AD HE Ee uc MRE S Gg IAA DUT MAIN DC 12VC FBVe 6302 ve i vaoz DC POWER SUPPLY Ph 2P 4 4 nppnippislBbpBphBI GEE CE MA nm nany PM ee Used For YEL o 8 agaz Sae Notel Not Ueeg For Usaa For 180 To Hot Water my FE S Sese F 3Woy System 3Way System 240K1 Models wae Syster o k 0 6 Ec Ft eor n Refrigement Retrigament Sway Far KE For A N 3 Way Hot Woter Cooling O11 g EE 9j je Law High ey W Syst Expansion Expansion By Pass Liquid Motor 3Way Motor Water Levet z S S Pressure Pressure nee EE DU S Varvatel Varvel 2 Val va v Y v Vaive Level SW SWL alve olve aly Dive alva atve 8 D Bu Sensor Sensor Ne LN H DE TH4 TH THO THiO THII Cc Ze HH tikt e Noise 8 E ox BOD BA IMD Bars oax CE wW E O W ud ad O EE at ioe EC ait se EE ll ik Frrror2 eso or gt ne Or m mo Oa De oco oze ESS B p d gt a N 3 z D RED a OL SL wat i cha Liz DE MEA d OS d i SE Ces cupi Ces engzo oan og
47. System 1 a For the W MULTI outdoor unit 2 indicated in the left diagram perform lt lt Step 1 gt gt to lt lt Step 3 gt gt in Backup operation procedure in that Refrigerant tubing Outdoor order Then perform maintenance work on W MULTI outdoor unit 2 branch tubing Balance tube 2 W MULTI W MULTI outdoor unit outdoor unit 1 2 b When lt lt Step 3 7 is finished W MULTI outdoor unit 1 is reset It ll stop even if it is operating c After approximately five minutes 1f there is operation input indoor remote controller is Run or test run setting on outdoor main board W Multi outdoor unit 1 starts up Backup operation starts d If test run is set from outdoor main board W MULTI outdoor unit 1 continues to run However if normal operation is started by the indoor remote controller depending on the load all outdoor units may stop due to thermostat off Refrigerant tubing main tubing Procedure 1 Procedure 2 Procedure 3 System recovery procedure If backup operation has been performed by all means check the following items after the maintenance work and then perform settings again to return the system to its normal state Check to make sure all shutoff valves of refrigerant gas tube refrigerant liquid tube and balance tube of the outdoor unit are opened Check to make sure the STOP switch S001 on the outdoor main board is set to NORM If the power of the outdoor unit has been turned
48. air has been discharged Display IS De Rejection conditions Test run in progress automatic addressing in progress stopping due to abnormality Operating method When the coolant air discharge mode is not set press the SET S007 key for one second TEST WARNING LED light Operation details Operate the coolant pump coolant 3 way electric valve and hot water 3 way electric valve to discharge air During operation in air discharge mode coolant pump coolant 3 way electric valve and hot water 3 way electric valve are controlled automatically to discharge air Forced setting in progress display TEST WARNING LED light is shown during this time Releasing method Automatic operation is canceled The forced setting in progress display will be canceled TEST WARNING LED off 9 Forced engine distributor mode Level 2 Used when fixing ignition timing Display EL 8 P R r Rejection conditions None Operating method Press the SET S007 key for one second while forced engine distributor mode is not set TEST WARNING LED light Operation details Activates forced engine distributor mode Forced setting in progress display TEST WARNING LED light is shown during this time Releasing method Press the SET S007 key for one second while in forced engine distributor mode The forced setting in progress display will be canceled at this time returning to forced settin
49. alu gt 5 Forced setting of setting engine rpm is possible 1 Forced engine rpm setting display Level 0 Displays selection of the forced engine rpm setting at the menu 2 3 4 A E E r Fin forced engine rpm setting Level 1 Pressing the SET S007 key in the forced engine rpm setting display mode activates the following display EL EE Example iU EE Example el 4 5 5 Example 3 USE Example Wal BIA Example cycle which is repeated at 1 second intervals jk forced engine rpm 1400min p Engine rpm 1400min Compressor inlet pressure 0 56MPa Compressor outlet pressure 0 56MPa Compressor outlet temperature 85 0 C Forced engine rpm setting operation Level 2 Start operation method Change operation method End operation method Other Setting range Clutch Rotation restriction Press the SET S007 key for one second when forced engine rpm has not been set This will fix the set engine rpm at the forced engine rpm The forced setting in progress display appears during this time TEST WARNING LED light Operating the UP S005 and DOWN S006 keys makes it possible to change the setting values Press the SET S007 key for one second when the forced engine rpm is set This cancels the forced setting in progress display returning to forced setting select operation TEST WARNING LED off From the lowe
50. at right is an example for when the current value checked in 1 is zero 0 HOME ie If the current value is 2 and a 3 correction is set in relation to that value the value will become 1 after the setting is made The display will show BH i figure below right O 5004 HOME g iv With amp B 3 right figure displayed press the SET key S007 for one second or more The TEST WARNING LED D052 will go out and LEVEL LED D053 will light The ignition timing offset mode will be cancelled and the setting process will be ended HOME pos3 M92 Cancel settings When ignition timing correction is finished cancel the forced rotational speed setting and the distributor mode Make sure to do this 1 Press the HOME key S004 for one second or more nome Menu item number n a D right figure will be displayed l Ll UP DOWN sET s005 S006 S007 o Q O 2 Press the UP S005 or DOWN S006 key displaying the menu item numbers Select menu item naa i amp in the figure below The display E E r P n figure below will appear tri ITU ULI DOWN SET DOWN SET S006 007 005 S006 S007 o O o O 5004
51. between the outdoor main board and the relay board Replace outdoor main N board Does the relay board RAY GHW280J2E output a voltage for yes 4 driving the solenoid valves Voltage check during solenoid operation 200 V AC during operation Balance valve BALV between 3P blue 1 and 3 Flashing valve FLSV between 3P red 1 and 3 No Replace relay board Oil recovery valve ORVR between 3P black 1 and 3 IV 62 4 4 4 Poor connection or broken wires in lead wires of solenoid valves 1 4 1 5 Solenoid balance valve flashing valve and oil return valve 1 555 1 valiye Col 9 s the resistance of the solenoid valve coil about 1 1 kQ No Replace the solenoid Balance valve flashing valve oil recovery valve valve coil 5 Set Forced compressor oil replenish for outdoor units where a no oil failure occurred and Check the 5 1 Forced compressor oil supply for other outdoor units gt Go to 2 2 oil circuit Do not perform a Forced compressor oil replenish for two outdoor units simultaneously prine Check the temperature of the solenoid valve unit at locations A solenoid ied s p and B in Figure 1 of outdoor units where Forced compressor oil 5 2 vals omi supply was set Is the temperature rising Outdoor temperature and operating conditions may slow Replace the solenoid down the temperature rise even when the circuit is normal A valve unit single lubrication takes about 15 min
52. board main Doar connector 6P red CN049 No 4 and No 6 i voltage red Km outdoor main Yes Replace outdoor main b Is there a voltage equivalent to gauge pressure between the board outdoor main board connector 6P red CN049 No 5 and No 6 c Wiring connection contact poor or wire broken between control board connector 6P red CN049 and compressor outlet Repl e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor main board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 A E ME e 4 5 Outdoor Unit Electrical Wiring Diagram page VI 7 gh elo Ka ue O a Palet Ale o Ip Alk Aln S Palet H 9 apie tee 5 i l bf A le 9 Ipa Alk Ho SF Fl ht Al 0 2 3 Compressor inlet pressure MPa Compressor outlet pressure MPa e 11 1 Check bypass valve yP Operate for several minutes then stop with a difference in Yes Bypass valve is normal compressor inlet pressure and outlet pressure and open the 3 Bypass valve is No defective does not open valve using outdoor main board menu item No 04 Is the pressure equalized IV 92 P22 Outdoor Unit Fan Error Error detection method e An Outdoor Unit Fan Trouble is assumed when outdoor fan fan motor rpm and drive has exc
53. board and measure the resistance between No 1 and 3 Abnormal Replace the Normal value 20 C discharge valve 1 1 1 2 543 Q discharge resistance S0lenoid valve 2 1132 Q valve coil Replace relay board OK NG OK NG es No es No es No es No es No es No es No es No e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 90 e 2 2 Any air shortage An air shortage is likely if the installation conditions pictured below are not met Unit perimeter Unit top 600mm or more 2000mm or more Refrigerant tubing Front 1000mm or more e 6 1 Indoor electric valve check Electric valve opening determination standards During heating operation after 30 minutes have passed in complete combustion the indoor coil outlet temperature must exceed 40 C Check using No 0 Operation data display B a Ee g c e 6 2 Normal if a pulse voltage is applied across indoor control board PhaseA 1 8 connector PMV 6P white CN082 No 5 and No 1 4 after turning 8 Q power ON About DC4V measured on tester Phase amp s 8 2 e 63 co
54. board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 87 P19 Four way Valve Lock Error not detected 3WAY MULTI Error detection method Determined after 6 minutes of complete combustion time has passed during heating operation e An error is determined in thermostat ON indoor units when the highest indoor heat exchanger outlet E3 temperature is detected to be lower than the outdoor heat exchanger inlet for 5 minutes continuously e W MULTI only Handled as a fault only when four way valve control performed at first startup following a power supply reset or heating cooling switch fails e W MULTI only when a pressure differential fault the high pressure of an outdoor unit working at full combustion in proximity with an another outdoor unit working at low pressure detected between W MULTI outdoor units is assessed as a fault Q Troubleshooting common 1 Check four 44 Check the 4 way valve temperature during heater operation way valve Switched to heater side During heater operation is the control board VRR connector CN033 voltage about ACOV After stopped turn OFF outdoor unit Disconnect control board VRR connector CN033 and measure wiring resistance Normal value about 1kQ Short circuited or broken wire 2 244 Check wiring and thermistor for indoor units with no temperature increase Any broken wires
55. circuit breaker of the outdoor unit 3 Close the valves of refrigerant gas tube refrigerant liquid tube and balance tube 4 After the work is finished open the closed valves of refrigerant gas tube refrigerant liquid tube and balance tube 5 Set the STOP switch to the NORM side and then turn on the circuit breaker 6 When all outdoor units are in complete combustion state and until vane comes out about the time when all outdoor units simultaneously continue operation for one minute or more 7 For the next targeted outdoor unit perform the procedure starting from step 1 S002 Fuel gas solenoid forced off switch e This switch is provided for the forced shutdown of the gas solenoid valve e Moving this switch to the OFF side causes the forced shutdown of the gas solenoid valve However when cranking is carried out with the gas valve closed it immediately stops at A07 Therefore when measuring engine compression or for other purposes use GASOFF fuel gas solenoid valve forced closing setting of test run and forced setting function No 4 TEST VG 5002 EB lore NORM S010 Terminal resistor On Off switch e This switch is used for matching on communication lines e When only one outdoor unit is connected to a single communication line confirm that the setting is on the SHORT side e The factory setting is SHORT e When more than one outdoor unit is connected to a single communication line
56. control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e 1 1 Sub remote setup procedure E type Hold down the and buttons for 4 seconds or more Setup an item code D i and setup data DU amp appears on the remoto controller LCD GUse the Ww A buttons to switch to 1 H setup data Press the button the setting is completed when flashing changes to steady light GPress the button to return to normal remoto controller display Wired remoto controller B type Wireless remoto controller Remote controller address Remoto controller main L Remote controller sub L Main OFF Sub ON Remote controller address connector E11 Indoor Unit Receive Failure from Signal Output Board Error detection method After confirming existence of the signal output board an error is determined upon no reception from the signal output board Signal output board is defective Wiring to signal output board is defective Q Troubleshooting Wiring B ae output board option board broken or short Replace the signal output board option board and wiring Is board E11 displayed again board e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit E
57. front cover and diaphragm 2 Remove valve and valve lever assembly 3 Inspect for diaphragm damage or tears and valve operation conditions IV 10 5 1 1 After warming the engine remove all spark plugs 2 Force the fuel gas solenoid valve off trial operation and outdoor unit forced setting gt force fuel gas solenoid valve off When the gas solenoid valve force switch S002 is used to close the gas solenoid valve an A07 is issued before cranking 3 Set compression gauge in spark plug hole 4 Crank engine for 4 to 5 seconds operation signal trial operation etc 5 Repeat three times to confirm that gauge value exceeds limit value Pa ype For G POWER engine 1 62MPa 5 4 For procedures see Chapter 5 Inspection and Adjustment of Ignition Timing IV 11 A07 Fuel Gas Valve Error Error detection method e An error is determined when either or both of the following gas valves do not open fuel gas valve 1 controlled by the outdoor main board and fuel gas valve 2 controlled by the outdoor power board When the fuel gas valve is open but the feedback signal has ceased Q Troubleshooting 1 Is 180 V DC being applied between the fuel gas solenoid valve relay Yes 1 2 Gas Oar No 1 and No 2 as well as between No 3 and No 4 solenoid during cranking 1 3 valve Is 180 V DC being applied between terminals of the fuel gas solenoid coil during cranking ess poor connection poor crimping
58. geos pre IV 2 ADT Engine Oil Pressure E IV 2 UAM Engine Oll A Rt ST m IV 4 AUS Engine High Revolution E IV 5 A04 Engine Low Revolution Error isanne eer pci arken taten engen IV 6 Mice ee LL EE IV 7 A06 Engine Start Failure ereen eenden IV 9 A07 Fl GAS iz IV 12 AUS Engine Stalb scindit a sper rare ne Te he rene et a ee IV 13 A10 Exhaust Gas Temperature MIO entendu petet ee mb etten seitan IV 14 A11 Engine Oil Level EE IV 15 A12 Throttle Step Motor ENON wareness eeigen IV 16 A14 Engine Oil Pressure Switch EE IV 17 A15 Starter Power Source Output Short Circuit nonnen eeeneneneeenenen eene nenn n enna IV 18 A16 Starter LOCKS SR Ea DRE VE vic eenen IV 19 A17 CT Error Starter Current Detection Failure eee IV 20 A19 Low Coolant Temperature nanne nn nennnerenernereeeereereeeervereeeensereerveneeenreene nnne nnns IV 21 A20 High Coolant Temperature EE IV 22 A21 Coolant Level E IV 23 A22 Coolant PUMP ENOT eege eege ENER EE sene IV 24 A23 E En e UE IV 25 A24 CamshaftAngle Sensor EM OM misere tte eeens tds IV 25 We iren H ne IV 26 A26 FlameoutErrof erret xot era RR RE LEER IRR RR Rd IV 27 A27 Catalyst Temperature Error for only models with catalyst option IV 28 A28 Generator Error for only G POWER W MULTI ege throni etitm ina docens IV 29 A29 Converter Error for only G POWER W MULTI nnen eee vernamen ennee
59. gt gt On the outdoor main board of the target outdoor unit set the STOP switch S001 to STOP Wait for three minutes or more and then turn off the circuit breaker of the target outdoor unit 2 Start maintenance work 1 Sometimes all outdoor units may stop If there is operation input outdoor units other than the target one will start operation again after approximately five minutes For details on the settings see the next item 2 Always carry out the following three tasks D Check to make sure lt lt Step 2 gt gt is finished If the shutoff valve is opened refrigerant will flow from the other outdoor unit to the target outdoor unit causing serious malfunction Q After three minutes has elapsed from completion of lt lt Step 17 check to make sure the outdoor main board displays D o E E and then perform this operation If you turn off the power immediately after performing STOP setting the entire system will stop Backup operation cannot be performed If this happens see System recovery procedure recover the system and then start over again starting from lt lt Step 1 gt gt There will not be any problem whether the circuit breaker of the outdoor unit in lt lt Step 3 gt gt is ON or OFF Select one of them according to the work required Indoor outdoor operation wiring Work example Perform maintenance on W MULTI outdoor unit 2 in refrigerant system 1 in Figure 1 Refrigerant
60. heating operation The forced setting used in forced heating test run will be canceled at this time TEST WARNING LED off V 24 5 Force valve opening setting Level 2 Used for evacuation etc Display Rejection conditions Operating method Operation details Releasing method DI lalPlE ln Forced cooling test run in progress forced heating test run in progress bypass valve being closed Press the SET S007 key for one second while forced valve opening is not set TEST WARNING LED light Indoor unit electric valve outdoor unit electric valve 1 outdoor unit electric valve 2 liquid valve and bypass valve fully open Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second in forced valve open setting mode The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off 6 Force water circuit setting Level 2 Used for cooling water system air discharging etc Display Rejection conditions Operating method Operation details Releasing method None Press the SET S007 key for one second when the forced water circuit is not set D uinib TEST WARNING LED light Coolant pump operating The coolant electric 3 way valve repeats a cycle of 50 steps for 3 minutes and then 1950 st
61. ore S006 5007 Oo o o S004 S004 HOME Q HOME g 2 Press the UP S005 or DOWN S006 key to display amp amp engine ignition timing Check that this value is the one shown in table 1 below Table 1 Ignition timing adjustment value at 800 min K25 F2 4Y at 1400 min 950P G propane G 13A 12A K25 engine 10 BTDC 10 BTDC 950P engine 20 BTDC 20 BTDC 10 BTDC 10 BTDC 3 Attach the timing light on the high tension wire for the no 1 cylinder of the engine and check the ignition timing refer to table 1 above Compare it to the 5 amp engine ignition timing value displayed in 2 above V 49 Correction for distorted amount If the value is different than that displayed by 5 D engine ignition timing set in item above select BRE ignition timing offset in n a 5 engine settings and correct for the distorted amount 1 Press the HOME key S004 for one second or more Menu item number n a 0 D right figure will be displayed DOWN sET S006 5007 o 2 Press the UP S005 or DOWN S006 key displaying the menu item numbers Select menu item oof 5 in the figure below The display E k a u k figure below will appear C UP DOWN SET 005 006 500 O o Oo
62. outdoor operating wires 1 5 connected to central control equipment See 5 Remoto controller Is this indoor unit group controlled Any broken wires for remoto controller group link E d trol Is an option board CNO060 or wireless remoto d SSES controller CN041 connected to the indoor control Does E03 disappear several minutes after disconnecting said connector on the indoor control 2 3 board When controlling with two remoto controllers and the wireless remoto controller is the main set the No 3 4 other remoto controller as the main 3 Replace the removed option board or wireless remoto controller operating unit wiring and all 3 4 Short circuit misrouting or broken wires in indoor unit remoto controller wiring Replace indoor control No board The designation is used in the table to indicate indoor boards for DC and AC motor models There is no TEST pin on the indoor board for AC motor models See 5 Reference Document for checking remoto controller For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 ndoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 34 AGED 5 Central control m
63. pane from an indoor Remote controller transmission failure controller uni E02 Indoor unit receive failure from remote controller central E03 Operating Timer Wait deens Duplicate indoor unit address setting E08 5 l L Invalid settin pog iu ng Multiple main remote controller units set E09 aR e e Remote Flashing controller Indoor unit receive failure from signal output board e EE Indoor unit Group control wiring communication failure Indoor unit transmission failure to outdoor unit Outdoor unit receive failure from indoor unit Outdoor unit transmission failure to indoor unit Automatic address Too few units alarm Too many units Operating Timer Wait N l z No indoor unit in automatic address setting e e da i Flashi Outdoor main board error ashing Outdoor unit Outdoor main board sensor error uoneJedo eoi ep eAnooejoJd euiBu3 m zx mim ITI e o of N m e E Indoor unit m Q O m o x ITI ITI if o m N eo Bumes siu sosa UOIJEIIUNWWOD Communication failure between outdoor units for only W MULTI Inconsistencies in number of outdoor units for only W MULTI Incorrect outdoor unit tube connection for only W MULTI Communication failure between units When the water heat exchanger unit is connected in the table above please replace indoor unit with water heat exchanger unit for the alarm Note Some items are not indicated depending model N 1
64. remote controllers for all indoor units Confirm outdoor units have stopped Q Distributor mode setting Set the distributor mode by selecting E P Ar fromthe n a H test run forced setting display 1 Press the HOME key S004 for one second or more Menu item number n a D right figure will be displayed Oo 2 Press the UP S005 or DOWN S006 key displaying the menu item numbers Select menu item nauMH inthe figure below The display E E 5 E figure below will appear DOWN sET S006 S007 o S004 HOME Q 3 Press the SET key S007 a a L right figure will bedisplayed The LEVEL LED D053 will light DOWN SET S006 5007 o o 4 Press the UP S005 or DOWN S006 key to display E SP Rr right figure Press the SET key S007 for one second or more The TEST WARNING LED D052 will light and the distributor mode will be set o V 47 Start test run and set engine rotational speed Start test run and select n a D B forced engine rpm setting and set 800 min Start test run 1 Press the HOME key S004 for one second or more Menu item number n a 0 D right figure will be displayed DOWN
65. remoto controller CN041 connected to the indoor control board Does E06 disappear several minutes after disconnecting said connector on the indoor control board When controlling with two remoto controllers and the wireless remoto controller is the N 3 5 main set the other remoto controller as the main H 7 Replace the removed option board or wireless remoto controller operating unit wiring and all 3 5 Indoor control board failure Replace board e The designation is used in the table to indicate indoor boards for DC and AC motor models e There is no TEST pin on the indoor board for AC motor models e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 39 E07 Outdoor Unit Transmission Failure to Indoor Unit Error detection method When a self transmitted signal cannot be self received is mismatched for 3 minutes an error is determined Outdoor main board is defective Outdoor main board terminal resistor switch setting is incorrect Q Troubleshooting 1 Is the indoor outdoor operation wiring connected to multiple Yes 1 2 Outdoor outdoor units
66. replacing the compressor perform a trial operation and check the equipment Check a 1 6 Replace compressor 2 Perform a flashing cleaning to clean the inside of the refrigerant tubes 7 Inspect outdoor solenoid valves Adjust outdoor solenoid valves Use trial operation mode to check that the solenoid valves operate normally in each operating mode cooling heating and measure tube temperature around solenoid valves to assess For information on solenoid valve operation in each operating mode see the sections Control functions Operating control in the Outdoor No unit manual Does the solenoid valve operate normally Replace outdoor main board Es n Ss m EN do Adjust the power board Does the power board CN013 output the solenoid power supply voltage AC 200V No Replace power board Yes Repair wirin Any poor connection and broken wires in wiring between the Pees power board and the relay board E o Pv AR Adjust the outdoor main board In No 4 test mode when v open valve open is there a drive output voltage DC 12V from discharge valves 1 1 1 2 discharge valve 2 suction valve 2 1 and 2 2 9P white CNO18 Discharge valve 1 1 1 2 between No 3 9 Discharge valve 2 between No 4 9 Suction valve 2 1 2 2 between No 6 9 Does suction valve 1 output a drive voltage DC 12V during cooling operation Suction valve 1 between No 3 9 Note that suction valve 1
67. sensor is being ignored The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off 14 Forced fuel gas solenoid valve closing Level 2 Display Rejection conditions Operating method Operation details Releasing method LIAS n F JF None Press the SET S007 key for one second when forced fuel gas electric valve closing is not being set TEST WARNING LED light Fuel gas electric valvel is blocked Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second or more when forced fuel gas electric valve closing is being set The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off V 27 Outdoor Unit Setting No 5 Level 0 lt n 5 n Key operation is used to perform the outdoor unit setting 1 Outdoor unit setting display Level 0 Displays selection of outdoor unit setting mode at the menu EIElElalulk 2 Outdoor unit setting item select operation Level 1 Pressing the SEI 5005 key while in the outdoor unit setting display mode activates the following display 3 ed G Example t Example Data code 1 engine operation time 1234 hours Pressing the UP S005 and
68. the generator When broken wires in generator wiring has resulted in an open phase e When a short circuit has occurred in generator wiring or inside it e When a converter circuit is damaged Q Troubleshooting 1 Generator 23 Any locking broken wires poor contact short circuits rare short circuit in the generator OK if coil resistance between wires is about 0 1 0 5 Q 2 Converter board Do LED5 and LED6 flash on converter 1 or 2 e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Replace the Replace converter 1 Replace converter 2 A29 Converter Error for only G POWER W MULTI Error detection method Converter Error is assumed when an error occurs in the converter When wires are broken or short circuit has occurred in converter elements e When a converter circuit is damaged When the TR temperature sensor and generator temperature sensor connectors are not connected to the converter board Troubleshooting 1 Check Do LED5 and LED6 flash on converter 1 or 2 converter 2 Yes Replace converter Check connectors Are the TR temperature sensor and generator temperature of flashing sensor connectors connected to the converter board con
69. the resistance between No 1 2 2 3 and 3 1 on the motor side of indoor control board connectors CN333 red is 1 3 correct 28 90 model about 70 100 O 112 160 model about 35 50 Q Replace the fan motor Any ground faults between the cabinet and No 1 2 and 3 10 MO or more Check if the resistance between No 1 4 on the motor side of indoor control board connectors CN334 red is correct Connect CN333 red and CN334 red turn on the power and use a tester to measure the voltages between indoor control board connector CN334 red No 2 3 No 2 4 and No 2 5 Is the pin voltage between 0 and 5 V when the fan is slowly turned Is the voltage between No 1 2 5 V Check the indoor control board and replace if defective e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 ndoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board Replace the fan motor e 1 3 1 4 IV 82 P13 Refrigerant circuit Error W MULTI Please note that 3WAY models use a different troubleshooting procedure Error detection method The indoor unit outputs this warning when it determines that a compressor inspection is required
70. u A eo ra N CH 0 480 0 480 50 1950 50 1950 50 1950 L B g em ct EN 50 1950 50 1950 ur zi 3 E3 or E V 13 yu ee en penne ae Jenneken Engine ignition timing EIC 1 Cylinder number when flameout NMOQ 65 Gas demand regulation value LEEG Gas demand input value LEEG Thermostat on average intake temperature jun 100pino dN Thermostat on average blow out temperature Thermostat on average E1 temperature Thermostat on average E2 SS temperature Thermostat on average E3 C temperature Indoor No 1 unit electric valve Indoor No 1 unit intake temperature Indoor No 1 unit blow out C n temperature Indoor No 1 unit E1 temperature Indoor No 2 unit electric valve Ooo EE EE ee Indoor No 32 unit E3 temperature 32 6 Indoor unit data displays show the data of number maximum 32 units of connected indoor units in the same order a M N N o a EN wo N 01 02 03 o o o o o o o C C C C C C C gun Joopu dN NMOQ gt e 05 1 0 V 14 Error Data Display No 1 Level 0 lt inlal l gt Error data displays and error resets are conducted Error data including pretrips are stored in the nonvolatile memory for the 3 most recent incidents When an error occurs for the 4 time and beyond the oldest error data is erased and the 3 most recent incidents are stored
71. when the following conditions are met After a hot and cold water pump operation command when the hot and cold water pump interlock signal no voltage a contact is not ON within 5 minutes When the hot and cold water pump interlock signal turned ON once but turned OFF again while the hot and cold water pump operation signal continued Troubleshooting 1 exchanger s the coolant pump operating unit No 1 2 electrical box Is the hot and cold water pump operation command wiring connected to the auxiliary equipment hot and cold water pump R t A t relay Note 1 Vater equipmen Turn power ON Is the auxiliary equipment control board off Any signal line broken with poor contact or short circuited Yes Request equipment Any chattering in the coolant pump relay of the auxiliary repair equipment No 1 6 Any broken wires or poor contact in coolant flow switch wiring Replace float switch Any chattering in the coolant flow switch No Replace water heat exchange unit board DH Note 1 Hot and cold water pump operation order TB2 Between No 1 and No 2 No voltage a contact output e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 ndoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e For details on pr
72. with the engine rotating at the forced set speed will be displayed at one second intervals as shown below 14 0 D 10 1400 Forced engine rotational speed example 1400 min 1 4 0 D 11 1400 Engine rotational speed example 1400 min Compressor inlet pressure Example 0 56MPa 5 13 0 56 Compressor outlet pressure Example 0 56MPa bh 15 85 0 Compressor outlet temperature Example 85 0 C 7 In this state press the UP S005 or DOWN S006 key to set the engine rotational speed to 800 min Press the SET key S007 for one second or more to confirm the set engine rotational speed The TEST WARNING LED D052 will light Caution The forced engine rpm can be set within the range from the minimum speed to the maximum speed governed by the engine in units of 100 revolutions amp Ignition timing check When the operation conditions stabilize select n a 5 D operation data display and display amp 5 engine ignition timing Check that this value is the value shown in table 1 1 Press the HOME S004 key for one second or more Menu item number n a D D figure below will be displayed The TEST WARNING LED D052 will light After that i 2 3 4 5 asin the example below where the engine has 12345 operating hours will be displayed The TEST WARNING LED D052 will light In this state press the SET S007 key The LEVEL LED D053 will light TII EEEN D052 UP DOWN sET
73. 45 0kQ 40 C 29 6kQ 50 C 20 0kQ 60 C 13 8kQ 70 C gt 9 7kQ 80 C gt 6 9kQ 90 C 5 1kO 100 C 3 8kQ 110 C 2 8kQ 120 C 2 15kQ 130 C 1 66kQ IV 76 P04 Refrigerant High Pressure Switch Operation Error detection method e When high pressure switch turns OFF Setting 4 15MPa Turns ON when contact is not defective switch automatically resets Q Troubleshooting Yes 2 1 Can engine operate No 2 2 High pressure switch Yes activation Measure high pressure Is it actually high Any malfunctions See P20 High pressure switch conducting Conduction in high pressure Replace power board switch with power supply board connector 63PH 4P white z CN014 GE d rene high pressure switc e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Reference Electrical Wiring Diagram A B 3 IV 77 P05 Power Source Error bnormality detection method An error is determined when the power source status meets the following condition Open phase Instant power failure exceeding 100ms 5 times h Q Troubleshooting 1 2 Is the power supply voltage AC 200V for each Measure between terminal plates R S S T and T R Se power supply side 1 2 Check f
74. 48 units are displayed 37 RW 38 39 NC 40 41 NC 42 43 44 COO CO CO CD I OU ECH 33 to 44 units from upper left to upper right of vertical line 45 to 48 units from lower left to lower right of vertical line No 33 to 48 units connected Note 2 dots at lower right Note The example above displays up to 48 units but the number of indoor units that can be connected is restricted separately by each model V 37 Initial Setting No 10 Level 0 n a 5 gt Key operation is used to perform the initial setting Initial setting details are as follows 1 Initial setting display Level 0 Displays selection of the initial setting at the menu Fi dr fale 2 Initial setting item select operation Level 1 Pressing the SET 5001 key in the initial setting display mode activates the following display Example a u Example With system address 1 Operating the UP S005 and DOWN S006 keys in this mode makes it possible to select the settings for system address outdoor unit address number of outdoor unit connected number of indoor unit connected format gas type old refrigerant indoor unit compliance engine heating automatic address and cooling automatic address System address setting Outdoor units address setting Do not change it when not installing multiple W MULTI model outdoor units Number of connected outdoor units setting Do not change it when not i
75. 7 key causes the error code and temporary stop cause code to be displayed Data is displayed by selecting with the UP S005 and DOWN S006 keys Pata code Data name L Display examples Most recent error log code 5 D Second most recent error aJar Third most recent error log m Er Eug Ja Temporary stop cause vt Ur code 12 Stop log 1 Tu ue Engine operation time x1 when it occurs 4 dela el P Stop log 2 ug TT Temporary stop cause SS code 11 EDE ee d 2 9 Temporary stop cause A Stop log 10 code 2 Hess 1 d 5 4 4 4 Stop log 9 4 as gm SC LL P03 A20 4 Stop log 12 5 I error log clear 5 Lir error log clear Note Stop cause or fault code and stopped engine s operation time are displayed alternatively Cause code are listed below Stop cause Stop cause 1 Temporary stop due to insufficient differential 16 Engine failure during clutch control pressure of refrigerant during startup 2 Although the discharge temperature is high enough 17 Stop once due to 24 hour continuous operation the liquid valve is not yet open 3 Although the discharge temperature is high enough 18 Stop once due to gas type determination control the engine speed is still too high 4 Although the high pressure area is high enough the 19 Coolant temperature is high but electric cooler s 3 way fan output is still too low electric valve is not completely opened 5 Althou
76. 7 Compressor Oil Depletion Error for only W MULTI Error detection method Each outdoor unit is inspected for lack of oil and when the oil level is 0 insufficient for 20 minutes the engine stops e AnHO07 failure is assumed when the engine has stopped due to insufficient oil a total of 8 times This cumulative count clears when the oil level becomes 1 normal or 2 sufficient Q Troubleshooting 1 Reset the outdoor main boards that indicated the failure HO7 Go to 1 2 meum Use the address of the minimum outdoor unit to set a forced trial operation Cooling or heating Go to 1 3 ae Wait 5 minutes after starting the outdoor unit unit Set all indoor remoto controllers to Off before starting a forced trial operation Set the STOP switch S001 to STOP on the outdoor unit where the failure HO7 occurred Go to 1 4 Note This may momentarily stop all outdoor units but after 5 minutes all outdoor units resume operation except the unit that was turned off Set No 4 Forced compressor oil supply except the outdoor main board where the no oil failure occurred Check that BALV balance valve and FLSV flashing Yes 1 valve solenoid valve units on the outdoor units where Forced compressor oil supply was set operate alternately Do they operate Do not cancel the Forced compressor oil supply setting before it completes No 2 The Forced compressor oil supply automatically stops after about
77. Actions or short circuits Replace power board Replace four way valve coil and wiring Replace 4 way valve e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Troubleshooting W MULTI only 1 Check all W MULTI outdoor units Pressure Is the actual difference between compressor inlet pressure displayed on the outdoor main board and output pressure gauge Replace pressure data etc 0 1 MPa or less No sensor sensor 1 1 inspection 2 Use a collective stop setting to temporarily stop the outdoor unit Check and perform four way valve adjustment control according to one outdoor unit of the procedures described below operation After resetting the power supply on all W MULTI outdoor units 2 1 use the remoto controller or the outdoor main board to start desired mode Use the trial operation setting from the outdoor main board or the remoto controller to switch between cooling and heating to start operation Yes 2 4 Do all the W MULTI outdoor units start and continue running for vea Check why operation does not continue and remedy the problem When the device stops immediately after startup 2 3 Check error history and use the code to find troubleshooting 2 1 informatio
78. C 33 to 44 units from upper left to upper right of vertical line 45 to 48 units from lower left to lower right of vertical line No 33 to 48 units connected a Dj Note 2 dots at lower right V 36 3 Indoor unit forced thermostat off setting Level 2 Press the SET S007 key during indoor unit thermostat status display ET ME de UC sy 1 CT dp mE at Ui uy 1 Ui TN Li DN DN Ir DN 2 e Li 7 Li Example No 1 24 units connected Note 1 dot at lower right Lit Normal status unit Flashing l sec cycle flashing indicates thermostat off unit numbers 0 5 sec cycle flashing indicates forced thermostat off status unit numbers e High speed flashing indicates selected unit to perform setting Setting unit Forced thermostat off setting method Press the SET S007 key for one second when forced thermostat off is not set TEST WARNING LED light Forced thermostat off release method Press the SET S007 key for one second when forced thermostat off is set TEST WARNING LED off Display examples No 1 to 32 units connected Note 1 dot at lower right 1 to 12 units from upper left to upper right of vertical line 13 to 24 units from lower left to lower right of vertical line 25 to 30 units from top left to top right of horizontal line 31 units 32 units from bottom left horizontal line Operate the UP S005 and DOWN S006 keys If the number exceeds 32 units automatically No 33 to
79. DC and AC motor models There is no TEST pin on the indoor board for AC motor models See 5 Reference Document for checking remoto controller For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See instructions packaged with servicing indoor board for procedure on replacing indoor non volatile memory EEPROM and replacing indoor control board In systems that link wiring systems where a water heat exchanger unit is connected the state of hot and cold water may output an Automatic Address Setting Warning Should this happen remove link wiring and set a different address IV 46 E16 Automatic Address Alarm Too Many Units Error detection method An error is determined when the indoor unit count water heat exchanger units responding to transmission exceeds the indoor unit count water heat exchanger units set on the outdoor unit Also detected apart from autoaddressing The actual number of indoor units exceeds the number of indoor units set on the outdoor unit with indoor unit connected Troubleshooting 1 Auto 1 1 Perform pre check before auto addressing See 5 Reference Document address e For board and Electrical Wiring Diagram see Chapte
80. Data code Indoor unit data Oo ole LI LC LU et 2 From the second point is data Up to the second point is the data code Up to the first point is the indoor unit number 4 Forced Setting Release Pressing the SET S007 key in the normally displayed status for one second causes all forced set items to be canceled V 11 5 Data setting operation Level 2 Setting start operation method Press the SET S007 key for one second in the setting data code select mode This activates the forced setting in progress display TEST WARNING LED light Setting change operation method After entering the setting start operation mode operating the UP S005 and DOWN S006 keys make it possible to change the setting details of the selected setting categories Setting confirm operation method After entering the setting start operation or setting change operation completed press the SET S007 key for one second This cancels the forced setting in progress display making it possible to once again enter setting item selection operation mode TEST WARNING LED off Setting cancel operation method Press the HOME S004 key for one second before confirming setting This returns operation to normal TEST WARNING LED off The setting details will not change when pressing the HOME S004 key for one second during setting item select operation Data setting operation is possible from items No 0 to No 8 The following dat
81. E IET Tata IC vien Cert Tope rS TCTE Sameer 2 THIS Esnouse Hes laaperetcre Sensor riga Gene totar eeaereiure 2 GBT Te TH27 GBT Tens 1 Outdoor main board EEN H 5001 7 reno ET Dee WHT D n ENORA LG Dee I OUT RAY wu croo 18 lore ap s002 NORM a c AH S eit KN S O a19 reonl a D m z E Be ta 34 zeon I Ei das n gt o acea 8005 L O j 3 1 9 g IO O E go o EE G E REES Dos d Bron T Yag Wyo a 20 3 m d de tu D nt P 5 E ER amp E amp S 6 Gi 2 3 ba UP EE 73 J Ei Og Q 9 D aA f e 8 D 10 z i D X L ps uM d NEC UEM ch Zi zoca 15 14 13 No Name Position in No Name Position in the diagram the diagram Terminal resistor ON OFF switch S010 A3 Im CN075 STOP SW S001 A3 18 EEPROM Indoor outdoor communications monitor D043 EE CN037 WHITE Gas solenoid valve forced off switch S002 CN049 RED pe C 3 SET key S007 CNO29 BLUE DOWN key S006 CNO14 BLUE UP key S005 CNO16 BLACK LE
82. EEPROM setting However after 6th reset this is 4 hours have passed Engine is stopped when error occurs Note When the gas type setting is 1 no engine oil error is detected After changing engine oil use the procedure describe in 2 below to reset the oil change hours timer Method for resetting oil change hours timer 1 Select Menu No 2 Oil change hours display The oil change hours are displayed as shown below of tho EI 000 EN L Oil change hours 10100 hours Displays o for oil change hours 2 By holding down the set key while displaying the oil change hours the display changes to the following 3 Also if an operation error results in this display simply wait for about one second to return to the previous oil change hours display Lir Clr When the CLr display appears release the set key momentarily then quickly press and hold down the set key again When the following display appears the oil change hours are reset to 0 hours When this display does not appear and the previous oil change hours are displayed repeat the process as described above End A03 Engine High Revolution Error Error detection method Engine revolution speed is Engine revolution speed is more than 2 300min continuously for 30 seconds e Engine revolution speed is more than 2 400min cont
83. No ban ve For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 xer e A04 Engine Low Revolution Error Error detection method When engine revolution speed drops to 700min or less continuously for 3 seconds during engine operation complete combustion an abnormal flag is set and the engine stops An Engine Speed Too Low condition is assumed when the error flag has stopped the engine 5 consecutive times in 1 hour Q Troubleshooting Fuel 1 1 Has the fuel gas pressure dropped Is the fuel empty estore Check Measure actual revolution speed using a revolution meter Is the revolution revolution actually low speed 4 1 3 Mixer 3 1 Is the throttle valve operating SC o 4 Ignition 4 1 Check ignition coil cam angle sensor and crank angle sensor pulse 5 1 Any poor connections poor contact or broken wires between throttle step motor wiring and connector Wiring from outdoor main board connector 6P black CNO66 to throttle step motor No 8 1 OK 6 3 Measure compression See A06 5 1 6 2 Wash valve and adjust valve clearance If still NG replace engine head Wwe 6 3
84. Oo Ground only one end of the shield wire Chu Check total wire length and the number of branch connections and connected units Terminal resistor is basically ON SHORT for one unit only but depending on the installation status can be set to ON SHORT for up to 3 units e Device ground check Is earth ground securely obtained e Ifan error is found in the wiring connections the following check procedure allows you to quickly identify the location of the error When performing the check procedure it is convenient if you have a drawing showing the layout of devices and wiring routes to refer to In systems that are comprised of multiple wiring systems linked together you can quickly identify the location of the error by removing the link and determining whether each individual system is good or not good A warning in a certain system does not necessarily mean that the cause of the error is in that system Check the indoor outdoor control wires of all systems since the abnormality may be in the wiring of a system other than that where the warning is triggered Outdoor Outdoor Unit Unit nit nit nit nit Wire connecting the systems Outdoor Outdoor Unit Unit Unit Unit Unit Unit For units other than W MULTI Outdoor Unit 1 Wire connecting the systems Outdoor Unit Wire connecting the systems Outdoor Unit When the wiring route is divided into segments by the terminal block of each unit it is ad
85. P models 1 1 Indoor unit model Indoor unit Indoor control board e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 64 L03 Multiple Main Units Set for Group Control Error detection method An error is determined when multiple main master units exist within a remoto controller group control When remoto controller group wiring is changed after auto addressing is complete When multiple main units are set in remoto controller detailed settings mode Q Troubleshooting 1 Yes 1 2 Remoto Remoto controller group wiring routed as intended controller 1 3 group Til In remoto controller detailed settings mode set one main unit 1 in group settings item code ua int Then either manually set all others as sub units 2 or repeat auto addressing After repairing remoto controller group wiring repeat auto addressing process e See 5 Reference Document for detailed remoto controller settings e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor c
86. Reference Document for detailed remoto controller settings e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 68 L08 Indoor Unit Address Not Set Error detection method An error is determined when the indoor unit capacity is not set When the indoor unit address was not set when new non volatile memory EEPROM was installed When indoor unit address in the remoto controller detailed settings mode is invalid Q Troubleshooting 1 Indoor unit 1 1 Set address Use the remoto controller detailed settings mode to check indoor unit addresses item code 13 and set an indoor unit address to replace invalid 0 ones e See 5 Reference Document for detailed remoto controller settings e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 69 L09 Indoor Unit Capacity Not Set Error detection method An error is determined when the indoor unit capacity is not set e When the indoor unit
87. S008 SET S007 o Oo 2 Press the UP S005 or DOWN S006 key displaying the menu item numbers Select menu item moa H inthe figure below The display k E E figure below will appear DOWN 008 SET S007 o S004 HOME Q 3 Press the SET key S007 a a will be displayed The LEVEL LED D053 will light Press the SET key S007 for one second or more The TEST WARNING LED D052 will light and the test run will start Set the engine rotational speed to 800 min 4 Press the HOME key S004 for one second or more right figure will Menu item number o be displayed D momo LU D L right figure DOWN S008 SET S007 o 5 Press the UP S005 or DOWN S006 key displaying the menu item numbers Select menu item nnn n nu B inthe figure below The display 5 E E r F n figure below will appear ri LL J IL D052 UP 005 DOWN S008 SET S007 Oo o o S004 HOME g V 48 DOWN S008 SET S007 o Oo S004 HOME g 6 Press the SET key S007 The LEVEL LED D053 will light and the status
88. SEQ YR Gt cocos Hoge e AiP bos iig ERS mu do ote ai 7 DEE Sen 5 T EZ Fd li n aca ae Ters ien S H ER d Td EE ER ze Som i EERE 3 i i dem Bs din Ei wen rep asso TT TI Dem d 3m gear SE A B Pd mmm ve voe ce Pl Lil nne mnnaiannnnnlitunn ER 23mm EEN HA Yor Loss Tor c Ba Ed g SE ase For mm ier Sraten og d E E SE EA DN gen tansa n 3 zB Ef DE x E AA e SU nn E We om e m F do va Fla S E g f vo dpa Ee T a I ba LI Ex Ha SEE ipee wal LEES ca gt LI L i Il 3 H EN GE E aq da di zs 28 ji o TET EET LET LET LET LE TEE E i A ds We Bid epe cue dg URGE RO d de du d dm ds da de du LTR WA N PCEASSY H zl PELLE d i E E GER ei fa aes oe TT T EE a Deense Varre UT Weed Ter MAY SY E P D senarna Verre 1 7 Usos For AWAY Svs Taa E us D senzioe Voive 1 4 see For WAY System Perl EE ii Bite de EE EE S Setz e BXrTse ree ve ee ZT Far MAY Suster SES an Ve ve 2 2 For MAT Sere FLS ustina Va va Fer W Syste URYR IO Recovery Verre Forw BH Rataere Ven Forw es For REL Worse Putty T TN e Ana VY Sici EZ isse Fre 2 Gage Dua eh Norse Forte 3 1291 22 M jc resit Sreoxzr CG32AC 20 SOVA ODSHS it RIDIN LI EE X Gem UPD ZOET ez T Copacrtor 7 Bijv Tw EEN EIN rar nm aac D sar z 01 80K 24C Corpressar a Coen ressar Curi Keo tyenenger niet lespetarure Soms Ser EE FER Wooing dert Tespereture Sensor BRE d EE x C uten Cai Tamperat re Sensor r Cara rysi Torpa liet Worer Dur EN NET Tevet E
89. To check older warning history press the temperature setting A button or V button and select the item code 01 04 To check warnings for other groups press the Switch Group button or P_ button and select the group number To clear the warnings press the button This deletes the entire warning history for the currently selected group To end the servicing check press the button IV 96 P31 Group Control Error Error detection method Under the following conditions all non master units in the remoto controller group display this error and stop e When remoto controller linking wiring is connected to an indoor unit independently controlled by a remoto controller L07 When multiple master units exist within remoto controller group wiring L03 When indoor unit fails to receive from remoto controller central E03 Troubleshooting Remoto Is this indoor unit independently controlled by remoto controller group wiring 4 2 In the remoto controller detailed settings mode confirm independent control then disconnect the remoto controller group link wiring 1 3 In the remoto controller detailed settings mode check the group settings If set to Independent correct settings e See 5 Reference Document for detailed remoto controller settings e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter
90. VEL LED D053 CN062 GREEN Hot water outlet temperatur TEST WARNING LED D052 CNO60 BLUE Clutch coil temperature 10 HOME key S004 CNO58 WHITE Coolant temperature 11 CNO15 WHITE CNOS9 BLACK Outdoor air temperature CNO63 YELLOW CNOSS BLUE Heat exchanger inlet temperature 3 CNO12 RED CN064 YELLOW Clutch 2 coil temperature 14 A CN053 BLACK Compressor inlet temperature CNO10 WHITE CN054 RED Compressor outlet temperature A 1 16 cNoos BLACK EE ES C A OINIDO Om 2 Outdoor power board 1 zeen x a E A SL Se T 9 L i i Ke zi El een Ss J case SE pune 2 2288 a Zr EM o vore DT e m zerg wt EH r AT SG Cas a ca IFA4BIBIOIBO0 O p 4 BB POW GHESONZE E 6 MW n i WN vn CA e enosa whteyvRR et elen ee s cNoa0 red Exhaustiomp es 3 Converter board O
91. Y biens sues o spuepueIs 7 pyeoq euwe pue Meos punoJfi ey veamjeg eouejstsa ainseayy DS euwe pue Meos punou ey veamjeg eouejstsa ainseayy xoeuyo jnoum HOUS yoayo yne punoIS zuasaud gea jeuruwue euo uj U 001 0 SZ xorddy prepuejs Z pjeoq jeurwue pue pueog eulwe uaamaq exuejsisaJ NSL V 6l Number units to connect 1 Number of units to connect Number of outdoor units that can be connected cece cece eee e es Max 30 Number of outdoor units that can be connected ccc ee cece eee Max 64 e Centralized control devices that can be connected sese Max 10 Total number of each type of devices within 1 link wiring is up to 100 2 Wires e Thickness 0 5 mm to 2 mm Total length Total maximum length of up to 1 km Precautions 1 To avoid incorrect operation do not run the signal cable together with the power line cable ii Keep the separation distance of 50 mm or more from the power line cable for Sanyo air conditioning equipment iii Keep the separation distance at 300 mm or more from other power line cables 1v If the wires are to be run together within the distances described above insert one of them in a conduit made of iron v When using a shielded wire ground either one of the cables vi Do not use the same wire for the signal wires and power supply wires Figure 1 vii Do not use a multi core wire for a set of signal wires Figure 2
92. a is displayed Measurement item l Standard operation data Display examples During cooling During heating Engine operation time r Engine operating revolutions g Starter operation time Starter operating revolutions Current oil change time r Lu nu Lu A Q D sf LU E LD 5 ru LU SE LD NMOQ LS EN E ru ra D D ru Lut c Number of compressor oil refills Number of times oil supplied Clutch 1 on time Number of clutch 1 on operations Clutch 2 on time Hr Number of clutch 2 on operations Times V 12 Dit 1 1 U Lu rri L pour E MU jun 400pino mi E dee C LI df 0 60 0 90 2 30 3 20 Outdoor heat exchanger 1 inlet o E 7 Outdoor heat exchanger 2 inlet E A Outdoor heat exchanger outlet o A ran ru ru ra ra LL ra E LU LI CH Ca uri ra 20 Coolant temperature C 21 Outside air temperature i 22 Clutch 1 coil temperature d 23 Catalyst temperature option Hot water outlet temperature o 26 Oillevel mesurement temperature ma cr wj rt O E EH a o o 5 c 2 48 Liquid valve Step 53 Electric cooler valve 54 Hot water discharge 3 way valve 55 Rotation speed variable value F_rpm om ur 2E 1 Lu 1 E d ru co Pus xu BLAR 0 480 vlum ml zl cl LI Eu cij m zE ra CO r3 ra
93. agram eene VI 7 1 Symptoms that are not malfunctions The following symptoms are characteristic operating conditions of this system and do not indicate malfunctions The fan flaps on the indoor unit operate when the unit is stopped If the compressor outlet pressure exceeds 3 5 MPa during heating operation the flaps on the stopped unit move to horizontal and the fan rotates in the breeze When this happens it may indicate a clogged air filter Inspect and clean if necessary Refrigerant noise is occasionally heard from the stopped indoor unit During cooling operation of the outdoor unit if the indoor unit is stopped for a period of time that equals the total oil recovery time period while cooling four hours refrigerant will circulate in the stopped unit for four minutes so that refrigerant and oil can be recovered During heating operation of the outdoor unit refrigerant will also flow in the stopped indoor unit allowing recovery of refrigerant and oil G The fan in the outdoor unit rotates slowly The outdoor unit fan can be completely stopped or rotated at various speeds by the control system and will be fast or slow as required The fan is especially likely to stop or run slowly during cooling or heating operation when outside temperatures are low During winter the outdoor unit fan may rotate even when the engine is stopped The unit will not switch from cooling dry to heating or from heat
94. ain sub switch Main OFF Central control main sub switch ae Main OFF Sub ON Intelligent Controller System Controller Central control main sub switch Main OFF Sub ON Multi Controller IV 35 E04 Indoor Unit Receive Failure from Outdoor Unit Error detection method After turning power ON with no transmission from outdoor unit for 3 minutes Or an error is determined when the outdoor unit does not respond Outdoor unit power is OFF With link wiring when outdoor main board terminal resistor switch S7 is set to ON for several units When turning power ON after completing auto addressing when the number of indoor units has changed e When indoor unit power is not ON Inspection pin CN062 CN071 or TEST pin CN064 on the indoor control board is short circuited e Non volatile memory EEPROM is not inserted when changing indoor board nthe remoto controller detailed settings mode the indoor address is undetermined Indoor unit addresses duplicated ndoor outdoor operation wiring is short circuited or broken e Error in the reception circuit on the signal output board option board Breakdown of outdoor unit High voltage AC200V etc applied across indoor outdoor operation wire circuit Q Troubleshooting Turn power ON and wait Power Is was the outdoor unit power OFF 3 minutes 1 2 Is the indoor unit power OFF ECT E 2 2 1 Indoor outdoor operation wiring broken or short circuited liis ld
95. al Wiring Diagram page VI 7 Reference Electric Circuit Diagram A B 3 CL2 clutch 2 CL clutch IV 95 P30 Group Control s Sub Unit Error warning displayed only on system controller Error detection method When an error occurs on a group control sub unit for all abnormalities the system controller displays P30 Troubleshooting 1 Confirm error details using one of the following methods 1 1 OCheck warning display on wired remoto controller Check warning history in system controller servicing check mode Troubleshoot the warning found in 1 1 e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e 1 12 System controller service check mode warning history Indoor unit outdoor unit warning history monitoring mode also clears warning history Press the icon and button continuously for 4 seconds or more Q Service Check lights and the item code 5 lights When the group number is selected when 1 is flashing when any warning history exists the newest warning history is displayed alternately with the unit number Temperature settings are not available Unit No 3 09 a System Indoor a Unit No Display Alarm Display G
96. al magnet switch depending on the model The internal thermostat turns the contact OFF when the fan motor coil temperature rises and automatically recovers as the coil temperature decreases turning the contact ON The thermal magnet switch turns the contact OFF when the fan motor operation current becomes excessive and turns the contact ON when normal or when recovered The wiring method and protective devices differ among indoor units For details see the electric diagram diagrams for each indoor unit Basic circuit Fan motor winding coil protection O thermostat Indoor control board Models not listed below have one fan motor with an internal thermostat contact connected between No 1 and No 3 T20 gray CN076 Models with two fan motors with the internal thermostat contacts connected in line between No 1 and No 3 of T20 gray CN076 If a fan stop signal comes from the indoor unit or data does not come from the indoor unit for three minutes communication error even though the outdoor unit forces the indoor fan to stop a PO1 warning will result Q Troubleshooting 1 Fan motor 14 Is there AC 200V between indoor control board connector IN black CN067 No 3 and connector T20 gray CN076 No 3 1 2 Any poor contact or broken wires in wiring between No 1 and No 3 of connector T20 gray 1 3 The fan motor winding coil protection thermostat has activated Check for dirty filter fan motor lock foreign matter caugh
97. al time clock RTC function XY 1 1 N Outdoor unit Outdoor nonvolatile memory EEPROM error Simult flashing Inconsistencies in indoor outdoor unit models non GHP equipment connected Multiple main units set for group control Duplicate indoor unit priority indoor unit priority setting excluding priority indoor unit Group control wire present for individual control indoor unit ndoor unit address not set ndoor unit capacity not set Duplicate system outdoor unit address setting Operating Timer Wait Outdoor unit capacity not set RM E ndoor unit model setting failure dor O Se Outdoor unit ndoor unit pairing failure ENE Simult flashing Gas type setting failure Indoor unit Operating xx e Outdoor unit Ca 1 N Simult flashing Indoor unit Buas Buissiw JO pijeAu When the water heat exchanger unit is connected in the table above please replace indoor unit with water heat exchanger unit for the alarm Note Some items are not indicated depending in model Y Flashing O Lit e Off Warning Wireless Remote Control Device Detection Item oa Lamp Display Checked Indoor unit Indoor unit ceiling panel connector connection failure panel connector connection Indoor unit ceiling panel connector connection failure Operating Timer Wait Indoor fan error indoor fan rpm error Ic e NEP vy AY AA Indoor unit Indoor protection Indoor unit float switch operation devices L Indoo
98. alve in indoor or outdoor unit to model only B complete switching and system is able to capture the condenser No evaporator 3WAY Waiting for the 3WAY solenoid valve in indoor or outdoor unit p naEuK to complete switching and the system is able to capture the model only evaporator 4 Troubleshooting A01 Engine Oil Pressure Error Error detection method When the engine oil pressure switch is OFF continuously for 3 second during engine operation complete combustion the engine is shut down momentarily and an error flag is set An Engine Oil Pressure Trouble condition is assumed when the error flag has stopped the engine 5 consecutive times in 1 hour Atengine startup code A06 reports an engine pressure trouble occurring within 15 seconds of detecting the opening of gas valve 1 It is not reported by A01 Engine oil pressure switch Setting value 49kPa 0 5kg cm Contact ON with oil pressure common ground with engine Q Troubleshooting Oil level Is there oil in the storage side of the oil tank 12 Oo 1 2 Any oil leaks or dirty oil Yes Add oil Is the tank side of the oil tank empty 14 o Check for Con Yes pinched or 1 4 Does the oil fill pump operate properly clogged hose Any oil fill pump wiring broken or disconnected Yes E 2 Replace pump 2 2 4 After engine operation complete combustion does the voltage between pressure Oil the oil pressure switch terminal and body ura
99. alve operate normally Adjust the power board Does the power board CN013 output the solenoid power supply Replace Repair M je 13 5 Any poor connections and broken wires in wiring between the power board and the relay board Adjust the outdoor main board In No 4 test mode when v open valve open is there a drive output voltage DC 12V from discharge valves 1 1 1 2 discharge valve 2 suction valve 2 1 and 2 2 9P white CNO18 Discharge valve 1 1 1 2 between No 3 9 Discharge valve 2 between No 4 9 Suction valve 2 1 2 2 between No 6 9 Does suction valve 1 output a drive voltage DC 12V during cooling operation Suction valve 1 between No 3 9 Note that suction valve 1 closes when powered the other valves operate in the opposite way Replace outdoor main board Repair Any poor connections and broken wires in wiring between the outdoor main board and the relay board Adjust the relay board 18 7 In No 4 test mode when v open valve open is there an output voltage AC 200V from discharge valves 1 1 1 2 discharge valve 2 suction valve 2 1 and 2 2 Does suction valve 1 output a voltage AC 200V during cooling operation Adjust the solenoid valve coil Resistance Replace Be sure to turn the power off before starting work is normal Solenoid Disconnect the connectors of discharge valve 1 1 1 2 discharge valve valve 2 suction valve 1 suction valve 2 1 and 2 2 from the relay
100. always set one unit to the SHORT side and the rest of the outdoor units to the OPEN side ame cn OPEN Caution Setting the terminal resistor switch for multiple outdoor units to the SHORT side can cause communication flaws G The 7 segment LED e This LED indicates the operating status of indoor and outdoor units changes in set values and various other displays using switches S004 to S007 e The 7 segment LED has 6 digits CT 03 CET Lj C QC 7 E Et ECL CC Indoor Outdoor communications LED D043 e The communications monitor LED for use between outdoor and indoor units e a 4 Display Component Specifications e UP DOWN SE 9o O 5005 S006 SE Goor S004 HOME Q Des Warning display red During warnings TEST WARNING LED D052 flashes Q Forced setting display red Upon forced settings during normal display the TEST WARNING LED D052 lights During display of forced settings on the menu item display the TEST WARNING LED D052 lights This may be used to search for forced setting items during setting Level LED display green The Level LED D053 displays the setting menu stage level and other information Level 0 is unlit Level 1 is light Level 2 is flashing Displays immediately after power is turned ON When the power supply is turned on the following displays appear T segment LED TEST WARNING LED D052 Level LED D053 light up 5 seconds
101. around room temperature sensor is high faulty indoor control board Auto flap does not move well 1 The flaps swing but wind direction cannot be set e Auto flap limit switch is faulty or has a bad connection 2 Does not move swing air direction setting e Auto flap is faulty indoor control board is failed remote controller is faulty Loud operation noise or vibration noise 1 Noise or vibration when fan operates e Fanis unbalanced worn motor axis bearing loose fan securing screw 2 Loud operation noise or vibration noise when compressor operates e Something is coming into contact with the refrigerant tubing or compressor Water leakage I Drain water leakage e Clogged drain tube mistake in draintube construction insufficient draintube insulation 2 Condensation on refrigerant tubing e Insufficient tubing insulation 3 Condensation at duct outlet e Insufficient wind capacity gap between duct connections Does not stop e Fused magnetic contactors faulty indoor outdoor control board faulty remote controller No display on the remote controller e Remote controller wiring disconnected e Remote controller wiring shorted 2 Remote Controller alarm display Yt Flashing O Lit e Off Warning Wireless Remote Control Device Detection Item Display Lamp Display Checked Outdoor unit Engine system error REN Starter system error Coolant system error High coolant temperature A20 Remote controller detected an abnormal Remote
102. board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 97 oiL Oil Change Time Alarm Error detection method When the oil change time exceeds the EEPROM setting 200 hours A02 warning is issued when EEPROM time setting is exceeded Note Engine does not stop with warning No warning detection when the gas type setting is 1 When warning is issued Check Oil flashes on remoto controller display Q Troubleshooting Itis time to change the engine oil After changing the oil reset the oil change time on the outdoor main board IV 98 5 Reference Document 1 Outdoor Main Board Replacement Sequence and Remote Controller Service Function Outdoor Main Board Replacement Sequence To replace the outdoor main board perform the work through the following sequence 1 Turn off the power supply and replace the outdoor main board 2 Transfer the nonvolatile memory EEPROM from the old board to the new board e Because engine operation time oil check time and other data as well as the various setting values are stored in the nonvolatile memory EEPROM inside the outdoor main board when replacing the outdoor main board the nonvolatile memory needs to be removed from the old board and transferred to the new board e The operation data setting values and other information will be carried ove
103. can be used to keep the indoor operating conditions This is called a backup operation e Backup operation procedure To perform backup operation the outdoor unit for maintenance work hereafter referred to as target outdoor unit must be cut off from the system using the following procedure Review content of the maintenance work and then select the most suitable method Also after the maintenance work is finished always refer to System recovery procedure and then return the system to its normal state Backup operation procedure To turn off power of target outdoor unit and then perform maintenance work basic operation during inspection of outdoor unit lt lt Important gt gt This is the basic operation performed during inspection work If this operation is not performed and the power of the outdoor unit is turned off this will cause system fault and prevent backup operation to be carried out and serious malfunction will occur If this happens see System recovery procedure to recover the system and then once again use the following procedure to perform setup Automatic backup operation will kick in lt lt Step 1 gt gt On the outdoor main board of the target outdoor unit set the STOP switch S001 to STOP 1 lt lt Step 2 gt gt After confirming that the engine of the target outdoor unit is stopped close the valves of refrigerant gas tube refrigerant gas liquid tube and balance tube lt lt Step 3
104. capacity setting was forgotten after installing a new nonvolatile memory EEPROM Inthe remoto controller detailed settings mode the indoor unit capacity is invalid Q Troubleshooting 1 In the remoto controller detailed settings mode check the indoor unit capacity setting item code 11 If set to Invalid 0 set the correct indoor unit capacity e See 5 Reference Document for detailed remoto controller settings e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 70 L10 Outdoor Unit Capacity Not Set Error detection method An error is determined when the outdoor capacity coolant generator or engine type is not set When new non volatile memory EEPROM is installed and the outdoor unit settings capacity refrigerant generator and engine type are not made When the outdoor unit model setting is Invalid Q Troubleshooting 1 Outdoor unit On the outdoor main board use menu item No 10 to check outdoor unit capacity refrigerant model generator and engine type and to set them up correctly setting e Display the outdoor unit model using the outdoor main board menu item No 03 e For information on model settings and clearing non volat
105. celled Stop test run 1 Press the HOME key S004 for one second or more Menu item number n a 0 D right figure will be displayed DOWN S008 SET S007 o 2 Press the UP S005 or DOWN S006 key displaying the menu item numbers Select menu item no i H inthe figure below The display 5 k figure below will appear DOWN sET S006 007 o S Oo o Oo Oo S004 HOME Q 3 Press the SET key S007 a a L right figure will be displayed The LEVEL LED D053 and TEST WARNING LED D052 will light 4 Press the SET key S007 for one second or more The TEST WARNING LED D052 will go out and the test run will be stopped 5004 HOME 9 Running condition check 1 Make sure that no abnormal noise or vibration occurs 2 Make sure there is no looseness in the fastening parts for each unit V 54 9 Thermistor characteristic graph Indoor unit heat exchanger inlet temperature sensor indoor unit heat exchanger outlet temperature sensor outside air temperature sensor compressor inlet temperature sensor outdoor unit heat exchanger inlet temperature sensor hot water outlet temperature sensor a E o o c D S E o oO c
106. closes when powered the other valves operate in the opposite way Ka a Replace outdoor main board Y Repair wiri Any poor connection and broken wires in wiring between the Sa ee outdoor main board and the relay board Z z lt lt T E o IV 84 Adjust the relay board In No 4 test mode when v_open valve open is there an output voltage AC 200V from discharge valves 1 1 1 2 discharge valve 2 suction valve 2 1 and 2 2 Does suction valve 1 output a voltage AC 200V during cooling operation Adjust the solenoid valve coil Replace Be sure to turn the power off before starting work Resistance is solenoid Disconnect the connectors of discharge valve 1 1 1 2 normal valve discharge valve 2 suction valve 1 suction valve 2 1 and 2 2 from the relay board and measure the resistance between No 1 and 3 Replace Normal value 20 C discharge valve 1 1 1 2 543 Q discharge Abnormal valve 2 1132 O resistance Suction valve 1 1197 Q suction valve 2 1 2 2 543 Q Is the coil operating normally Replace relay board e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wirin
107. clutch 2 coil temperature is 110 C or more for up to 1 minute Error is detected with one occurrence Q Troubleshooting The compressor uses a twin clutch specification Inspect both clutch 1 and clutch 2 1 Rotate the compressor pulley by hand while stopped Replace compressor Compressor lock to check for compressor lock Locked Both clutch 1 and clutch 2 are off so be sure to turn the center of the pulley and not just the perimeter 2 Clutch coil sensor Use a contact thermometer to measure the OK Investigate further temperature of the back of the pulley Is this temperature nearly identical within 10 C to that of clutch 1 and clutch 2 coil of the outdoor main board Is there a ground fault or short circuit in wiring between outdoor main board connector 2P blue CNO060 and 2P yellow CNO064 and their respective clutch coil sensors No Red clutch coil e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 CL2 clutch 2 CL clutch 2 1 See Chapter 5 for procedure to view clutch and clutch 2 coil temperature on the outdoor main board A26 Flameout Error Error detection method Anerror is determined when the engine revolution speed fluctuates widely durin
108. connector 3P red CN013 Yes Replace outdoor main connector and measure conduction of the N P change board confirmation switch Measure between 3P red No 1 and No 3 Gas type 0 Conduction No 1 3 Gas type 1 5 No conduction Disconnect N P change confirmation switch relay connector 2P 13 white and measure conduction of the switch Measure between 2P white No 1 and No 2 Repl N P ch Gas type 0 Conduction No ae fi is us Gas type 1 5 No conduction SERGE SWIC Correct the wiring between the outdoor main board connector 3P red CN013 and N P change confirmation switch Gas type 0 Broken wire or poor connection contact Gas type 1 5 Short circuit or pinched wire e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 73 P01 Indoor Fan Error Indoor Unit Fan rpm Error Not detected when water heat exchanger unit is connected Error detection method Detects when indoor control board connector T20 gray CN076 1 3 are open and assumes an error has occurred The sensor connected to T20 gray CN076 may be an internal thermostat built into the fan motor or a therm
109. connector CN084 to starter S terminal gt Repair wiring Yes Replace outdoor 4 7 At magnet switch ON is there DC10V or more between power board main board connector CN084 and outdoor main board connector FG CN075 Oo 4 8 Wiring connection contact poor from power board connector CN085 to starter power source positive terminal Repair wiring e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e 3 1 3 5 4 3 4 4 4 6 4 8 2P 7 black C3 C2 3 e 120 150 190 240 model A06 Engine Start Failure Error detection method 1 When startup cannot be confirmed but revolution speed is detected 6 seconds after detecting the opening of gas valve at startup 2 At engine startup when there is no oil pressure switch input 15 seconds after detecting the opening of gas valve 1 Error input is structured as shown below g g rH xau quj 1 el Sen Don EIE E m1 je n SE LEEILELEL LEL GH LE DI EZ 4 P o P E d du 2 Zei Di eo EZ DEE d dedi d TEELT Br WEN S
110. covery temperature when all conditions below are met Hot and cold water outlet temperature 4 C or more Anti freeze temperature 4 C or more Q Troubleshooting 1 Operate hot and cold Check 1 1 Is the hot and cold water pump stopped water pump water heat exchanger unit Yes m flow volume Is the flow volume too small M3 5 1 2 1 Replace water heat exchanger unit control 3 Are sensors correctly installed in correct positions board e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e For details on procedure to replace the water heat exchanger unit control board see the instructions supplied with the service water heat exchanger control board IV 81 P12 Indoor DC Fan Error DC fan motor model only Error detection method Open circuits and short circuits in the indoor control board connector CN333 red and CN334 red on the motor side are detected and assessed as faults Q Troubleshooting 1 Fan motor Any poor connections or broken wires in indoor control board Repair i i Disconnect indoor control board connectors CN333 red and ed o CN334 red Turn the fan by hand to check if it turns smoothly Replace the fan motor Check if
111. cting wires Be careful not to touch any live parts energized components with a hand or tool while performing voltage measurement For DC voltage measurement the polarity is indicated by or after the terminal name symbol to prevent confusion Connect the red lead of the tester to the side and the black lead to side 2 About the Error Detection Procedure Some abnormal occurrences are determined as abnormalities the first time they are detected and some are not determined to be abnormalities until they are detected multiple times In the latter case the engine is not forced to shut down the first time an abnormal occurrence happens Instead data on the abnormal occurrence is stored in nonvolatile memory the engine is force stopped for a period of 3 minutes and then the engine enters the restart sequence In the error detection procedures described on the subsequent pages abnormal occurrences that are determined as abnormalities after being detected multiple times e g 5 times are taken to mean abnormal occurrences that are continually detected multiple times e g 5 times within 1 hour of engine operation Regardless of continual occurrence and engine operation time the cumulative number of occurrences e g 5 times may force the engine to shut down 3 Engine Start Standby e When the engine is in standby mode waiting for the startup conditions to be met the conditions that have not yet been met are displayed on the 7 segmen
112. ction valve 1 closes when current flows through it other NG Replace the solenoid valve remain open solenoid valve 3 eLiquid valve inspection OENE Any refrigerant leaks past the liquid valve when the liquid valve i inspection ny de operan ee m 7 e liquid valve when the liquid valve is NE Replace the liquid completely closed step 0 valve unit 4 Is the operation mode heating Expansion Note If you are operating with a 3WAY MULTI try 4 2 and 4 3 valve before shutting down the engine as this might be due to cooling and No 4 3 inspection heating mixed operation e Outdoor expansion valve inspection Check that there are no refrigerant leaks past the outdoor expansion Replace the valve when the engine is stopped in heating mode NG outdoor expansion valve unit elndoor electric valve inspection Stop the indoor unit during cooling operation multiple indoor unit operation indoor electric valve opening 20 steps and check to Replace indoor le sure there is no coolant leakage beyond the indoor electric NG eleciric valve nit 5 OK Replace outdoor Pressure Pressure sensor inspection refer to the section on F16 for the main board sensor inspection procedure N Repai inspection G Repair e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control
113. curs replace outdoor function main board e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 60 F31 Outdoor Nonvolatile Memory EEPROM Error Error detection method e An error is determined when the nonvolatile memory EEPROM on the outdoor main board cannot be written Q Troubleshooting 1 Is the nonvolatile memory on the outdoor main board correctly Nonvolatile 1 1 oriented in the IC socket and inserted firmly Turn OFF the outdoor unit then turn ON and observe If the Yes Defective EEPROM 1 2 error recurs replace nonvolatile memory provided with service board Does this eliminate the error Replace indoor control board e Fora procedure on replacing non volatile memory EEPROM and an outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 61 H0
114. cw chr Tick Noise WHT dio lo D BLO AED lu lo rM WHT WHT BLK RED YEL RED BLK WHT WHT BLU D D Filter SIG MAIN PCB ASSY BLK CB MA LNM2E Byabo Name ar 2 at z TZ 1Gi 4 Tonition Coil T4 EE 5 WE E aal BENE E ES ES Toe er ze dezelde gered aH E GE d EER SR DVi l Dischorge Voive 1 1 Used For 3WAY Systen n e ae Ni ale Nals BE te E y Q el a IIS 5 DVi 2 Dischorge Volve 1 2 Used For 3WAY System ja c3 BIB al c t 8 S ana socistsisisisI ijkl amp DV1 3lDiscnarge Valve 1 3 Used For 3WAY System HS fi Btartar Motor 9 GI f Sala i DV2 Discharge Valve 2 Used For 3WAY System Power Supply Er zz zz or ZOO IMD Ieke Ome EN SV1 Suction Valve 1 Used For 3WAY System gu S Sa ER EE EIS ER TEE Ens ES S Sv2 lj Suction Valve 2 1 Used For 3WAY System S Sv2 2 Surt on Valve 2 2 Used For 3WAY System VA Anan ber FLSV Flushing Vaive Used For W System Varistor ORVR Olt Recovery Vaive Used For W System e Els BALV Batance Volve Used For W System E L Ey H RY S18 RAY PCB ASSY Used For NFI Noise Filter SUP EQ30 ER 5 S S s SLT spp stip d CNO19 W Multi System NF2 Noise Filter 2 SUP EK10 ER 6 Err 73 SE EGH RBH s POE EE Dee EL BPWHT RAY E240K1E FN NF3 Noise Filter 3 MBW 1201 22 P BP Z 10 Kai ap P ap 3P ap CB Circuit Breaker EG32AC 20 30MA 00345 el as H ED d AT dp Ere BA ain is aie Er KE Li R782A Borg CAGES CAGE Mois 018 QUIS QUi DOTS t2 t2 IESEL tt BEEN HERE ci copec
115. dely for 5 consecutive times in 1 hour Difference of 4 stablerevolution This can only be reset from the outdoor main board Q Troubleshooting 100 revolutions during 1 Any poor connection contact or broken wires for step and across No 4 and No 5 No 6 Wiring 1 1 motor throttle wiring and connector Wiring from Nes Repar wining control board connector GP black CNO66 to relay N 24 connector 6P 2 white B S 2 Does the step motor throttle coil resistance measure Yes 2 2 Mixer 2 4 about 1200 Disconnect relay connector 6P 2 and measure between No 1 red and No 2 No 3 and between No 4 orange and No 5 No 6 No Replace mixer When turning power ON during positioning is about e 2 2 DCAV applied respectively across control board connec Yes Replaceimixer tor 6P black CNO66 No 1 and No 2 No 3 T Replace control board e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 16 A14 Engine Oil Pressure Switch Error Error detection method e When starting the engine if the oil pressure switch is ON for 6 seconds or more contact closed before complete combust
116. derstanding the warning history The latest P18 data in the warning history is issued immediately after a complete combustion startup It is not the data used for detecting the error If a pre trip error was detected when the suspected error counter reaches 5 that data 1s the next more recent P18 data Troubleshooting 1 eBypass valve inspection D Bypass Durin g operation use the No 4 test mode v close close valve NG Replace the bypass valve to close the bypass valve step 0 Check whether refrigerant is not valve unit inspection leaking on entering the bypass eBypass valve inspection 24 After completing the above inspections stop the engine and use No 4 test mode v open open valve to open the bypass to check that the bypass valve operates normally despite the fluctuations in tube NG 1 3 temperature around the bypass valve eOutdoor main board inspection Is there approximately 12 V of pressure at bypass valve output ports 5 and 1 to 4 when the power is on No Replace outdoor main board eElectric valve coil inspection ee bypass Are the resistance values for electric valve connectors 5 and 1 to 4 about 40 Q No Replace the bypass valve coil Jave y Is the outdoor unit a 3 WAY MULTI device outdoor valves s the four way valve free from leakage Se Replace the four way valve Are the outdoor solenoid valves discharge valves 1 and 2 and 8 OK 3 1 suction valves 1 and 2 free from leakage Su
117. dition is assumed when the error flag has stopped the engine 5 consecutive times in 1 hour Q Troubleshooting 1 O Fuel 1 1 Has the fuel gas pressure dropped Is the fuel empty NG Restore gin e N N N o EH Alo Ignition coil cam angle sensor and crank angle sensor O O O Ignition timing see Chapter 5 9 Adjustment 2 2 2 O Air intake occurring Check rubber plug on intake N N N manifold N Replace high tension cord ze Inspect zero governor see A06 3 1 5 6 7 8 9 G Fuel gas regulating valve operating properly No Repair replace N No 4 and No 5 No 6 when turning the power ON during 1 Is DC voltage applied between outdoor main board connector 6P red 1 CNO065 No 5 and No 1 No 2 as well as between No 3 No 4 when Replace turning the power ON during positioning No outdoor main oard For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Is about 4 V DC applied between outdoor main board connector 6P 2 black CNO66 No 1 and No 2 No 3 as well as between 2 2 2 2 2 2 0 1 Eng
118. door main board Issue V OPEN command from Maintenance Panel Menu 4 then press the Set key S005 to light the LED The valve opens Press again to turn off the LED and the valve closes Compressor outlet Compressor inlet pressure sensor pressure sensor 4 5 A 4p E t O r a 3 b sie 5 3r z H H Black Red Brown 9 1b H A H Orange Black Red 8o 5L H A is 4 4 4 4 1 2 3 4 5 6 5 4 3 2 1 6P White Compressor inlet pressure MPa Compressor outlet pressure MPa YY Ar 07 5 0MPa 0 5 0MPa V l 05 45V 05 45V IV 57 F20 Clutch Coil Temperature Sensor Error F21 Clutch 2 Coil Temperature Sensor Error Error detection method Detected in the following situations Broken wire detected Sensor resistance exceeds 1800kQ Short circuit detected Less than 8500 Q Troubleshooting Disconnect outdoor main board connector 2P blue CNO60 or 2P yellow CN064 and measure resistance between the wires Is it 1800 kO or more Yes Replace sensor 1 2 Measure resistance between CNO60 wires Less than 8500 ponere outdoor main e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 ndoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring
119. e E1 temperature Thermostat on average E2 temperature Thermostat on average E3 temperature Continue at indoor unit data Indoor No 1 unit electric valve opening step Indoor No 1 unit intake temperature Indoor No 1 unit discharge temperature Indoor No 1 unit E1 temperature C Indoor No 1 unit E2 temperature C Indoor No 1 unit E3 temperature C Indoor No 2 unit electric valve opening step Displays for connected indoor units Indoor No 48 unit E3 temperature C Set engine rpm min 1 Engine rpm min 1 Compressor inlet pressure MPa Compressor outlet pressure MPa Compressor inlet temperature C Compressor outlet temperature C Throttle step Fuel gas adjustment valve output step Liquid valve step Bypass valve step Outdoor electric valve 1 step Outdoor electric valve 2 step Same as 5 seconds before Same as 10 seconds before 6 Error log clear Clears all of the error log and temporary stop causes for this outdoor unit Operation method Press the SET S007 key for one second EIA E t r 9 8 Jefe r SALE t Ie clearing complete Vlg 9 UA o A Af L K l NN EN ollolfoolfoo li ele Ei ON SY SS ei ygemme gg pm mm ed bak Ea Fo nd es or sor e vjelo e olle N U3 ra ex a a rn oo Io e N o AA vje ki e ele ella ee Ajj EN MN OS SHO aI ele
120. e priority setting set in remoto controller simple settings mode Troubleshooting Check operation mode priority item code 04 in remoto controller simple settings mode and assign operation mode priority setting 1 to only one indoor unit e See 5 Reference Document for detailed remoto controller settings e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 67 L07 Group Control Wire Present for Individual Control Indoor Unit Error detection method An error is determined when remoto controller group wiring includes an indoor unit set for independent operation When remoto controller group wiring is set up after auto addressing is complete When group settings for an indoor unit wired into a remoto controller group are changed to Independent in remoto controller detailed settings mode Troubleshooting Remoto 1 1 Remoto controller group wiring routed as intended controller group wiring 1 2 In the remoto controller detailed settings mode check the group settings item code 14 If set to Independent 0 correct it or repeat auto addressing process After repairing remoto controller group wiring repeat auto addressing process e See 5
121. eating auto addressing Non volatile memory EEPROM on indoor board is defective Replace 1 4 To change indoor unit address instead of the remoto controller detailed settings use remoto controller address change mode e The designation is used in the table to indicate indoor boards for DC and AC motor models e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See instructions packaged with servicing indoor board for procedure on replacing indoor non volatile memory EEPROM E09 Multiple Main Remoto Controller Units Set Error detection method An error is determined when multiple main remoto controllers exist within a remoto controller group Forgot to set a remoto controller sub when controlling with two remoto controllers Forgot to set a remoto controller sub when controlling with a wireless remoto controller and a wired remoto controller Q Troubleshooting 1 Remoto 1 1 Set one of the two remoto controllers to Sub controller e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor
122. ected to the indoor control Does E01 disappear several minutes after disconnecting said connector on the indoor control 3 3 board When controlling with two remoto controllers and the wireless remoto controller is the main set the other remoto controller as the main Replace the removed option board or wireless remoto controller operating unit wiring and all Is the LED D002 blinking on the indoor control Nonvolatile memory EEPROM on the outdoor main unit is not inserted is incorrectly inserted or is defective gt Correct or replace nonvolatile memory and program it in the remoto controller properties setting mode 3 7 Short circuit or misrouting in indoor unit remoto controller wiring ae indoor control oar The designation is used in the table to indicate indoor boards for DC and AC motor models There is no TEST pin on the indoor board for AC motor models See 5 Reference Document for checking remoto controller For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See instructions packaged with servicing indoor board for procedure on replacing indoor non volatile memory EEPROM and replacing indoor control board IV 32 Indoor control board Ei 3
123. ected when water heat exchanger unit is connected PO3 High Compressor Discharge Temperature esee nnne P04 Refrigerant High Pressure Switch Operation eeeeeeeseeeeeseeee PO5 Power Source Emor eene nen nennen nen nennen PO9 Indoor Unit Ceiling Panel Connector Connection Failure Not detected with water heat exchanger unit connected P10 Indoor Unit Float Switch Operation Not detected with water heat exchanger unit connected P11 Water Heat Exchanger Unit Anti icing Sensor Error for only water heat exchanger unit eceeee P12 Indoor DC Fan Error DC fan motor model only iieri repre draadeind P13 Refrigerant circuit Error W MULTI Please note that 3WAY models use a different troubleshooting procedure P13 Refrigerant Circuit Error BWAY anneer anna EEN P15 Complete Refrigerant Gas Depletion Ann anas ann nen nennen ennen P18 Bypass Valve ETOT EE 5 6 P19 Four way Valve Lock Error not detected 3WAY MULTI AAA IV 88 P20 Refrigerant High Pressure Error ccs soscdcccvetdcasudstebcesntwesndedbasdscenavouiadesanclesdewenteanias IV 89 P22 Outdoor Unit Fan EO ssi AERA RER RA REAREA REAA IV 93 P23 Water Heat Exchanger Unit Interlock Error for only water heat exchanger unit IV 94 P26 Clutch Connection Error eneen a EE EEE EAEN AE IV 95 P30 Group Control s Sub Unit Error warning displayed only
124. ector connection failure Indoor unit float switch operation Water heat exchanger unit anti icing sensor error for only water heat exchanger unit Indoor DC fan error Refrigerant circuit error O sensor operation Complete refrigerant gas depletion Bypass valve error 4 way valve lock error not detected 3WAY MULTI Refrigerant high pressure error Error Error alarm contents Code Outdoor fan error Water heat exchanger unit interlock error for only water heat exchanger unit Clutch connection error Group control s sub unit error system controller Group control error Others Compressor oil depletion error for only W MULTI Temperature sensor error for oil level measurement for only W MULTI Oil change time level alarm Backup operating display without power generation when the converter is abnomal Note Depending on the model some items are not displayed V 21 Oil Change Time Display No 02 Level 0 lt n e D This function displays oil change time Key operation is used to perform oil change time clear setting 1 Oil change time display Level 0 2 This display indicates current oil change time Example D 2 3 4 Example 1 234 hours Oil change time display clear setting Level 0 Pressing the SET S007 key for one second or more in the oil change time display mode activates the
125. ed as intended ds 2 5 Repeat auto addressing process After repairing remoto controller group wiring repeat auto addressing process Ye 2 3 Is an option board CNO60 or wireless remoto controller CN041 connected to the indoor control board No 3 4 Does E18 disappear several minutes after disconnecting said 3 connector on the indoor control board When controlling with two remoto controllers and the wireless remoto controller is the main set the other remoto controller as the main No 34 Replace the removed option board or wireless remoto controller operating unit wiring and all Replace indoor control board The designation is used in the table to indicate indoor boards for DC and AC motor models There is no TEST pin on the indoor board for AC motor models See 5 Reference Document for checking remoto controller For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 ndoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 See instructions packaged with servicing indoor board for procedure on replacing indoor control board 1 2 1 2 3 1 2 3 4 E20 No Indoor Unit in Automatic Address Setting Error detection method An error is determined when an indoor unit is not recognized at auto addressing star
126. eeded the following conditions 5 consecutive times in hour When outdoor fan fan motor revolution is not detected When an overcurrent is detected in the outdoor fan circuit e When the power board has been incorrectly installed POW GH850M2E Q Troubleshooting Power board 4 1 I5 the power board correctly installed POW GH850M2E No Replace it with the correct board 2 i Replace outdoor fan Outdoor fan Any outdoor fan motor locking broken wires poor contact or Yes motor motor short circuits Coil resistance should be around 2 6Q for each Is the fan motor connection position correct on the power supply board Is FM1 connected to FM1 and FM2 to FM2 Confirm that 3P black and 5P black connectors are paired NG Correct the connection together Replace power board and keep under observation If P22 reoccurs replace outdoor fan motor e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Reference Electrical Circuit Diagram A B 2 3 IV 93 P23 Water Heat Exchanger Unit Interlock Error for only water heat exchanger unit Error detection method An error is detected
127. eenne IV 30 ASO Low Fuel Gas Pressure Erol ascended nennen IV 31 E01 Remote Controller Receive Failure venerit dns int topo ck Pn aa rcbus IV 32 E02 Remote Controller Transmission Failure enean IV 33 E03 Indoor Unit Receive Failure from Remote Controller Central IV 34 E04 Indoor Unit Receive Failure from Outdoor Unit ene ecce IV 36 E05 Indoor Unit Transmission Faire to Outdoor Unit sissen netten IV 38 E06 Outdoor Unit Receive Failure from Indoor Unit aaneen eec IV 39 E07 Outdoor Unit Transmission Failure to Indoor Unit eeen IV 40 E08 Duplicated Indoor Unit Address Setting eese E09 Multiple Main Remoto Controller Units Get E11 Indoor Unit Receive Failure from Signal Output Board E12 Automatic Address Setting Is in Progress Automatic Address Setting Start is Prohibited E13 Indoor Unit Transmission Failure to Remoto controller E15 Automatic Address Alarm Too Few Units 1 E16 Automatic Address Alarm Too Many Urills oret retta irte rne pa enis E18 Group Control Wiring Communication FAB wanten etende E20 No Indoor Unit in Automatic Address Setting esee E21 Outdoor Main Board Dt E22 Outdoor Main Board Sensor Error aaseters annette E24 Communication Failure between Outdoor Units for only W MULTI E26 I
128. eplace engine if the engine crankshaft does not rotate e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 19 A17 CT Error Starter Current Detection Failure Error detection method When the starter power primary current meets the following conditions an error is determined upon 5 occurrences in 1 hour During cranking With no detection of starter current and with revolution speed pulse detected when 5 seconds pass during cranking or when engine attains complete combustion Q Troubleshooting 1 Does the wiring from the starter power source magnet CT1 switch 52S terminal No 1 pass through CT1 current RER 1 Use a clamp meter on the R phase wiring of the starter power source to measure the current during cranking Was the current 5A or more d Replace outdoor main Is there a voltage of AC 0 5V or more between es board outdoor main board connector 3P yellow CN063 No 1 and No 3 during cranking Replace current sensor 1 Starter power Broken wire or poor contact in wiring for R and T source phases of starter power source N Replace starter power 9 source e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electr
129. eps for minute and 16 seconds The hot water electric 3 way valve repeats a cycle of 1950 steps for 30 seconds 50 steps for 3 minutes and 1950 steps for 46 seconds Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second in forced water circuit mode The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off 7 Forced bypass valve closing setting Level 2 Used for pump down etc Display Rejection conditions Operating method Operation details Releasing method i Valve is open Press the SET S007 key for one second while forced bypass valve closing is not set Fully close bypass valve Perform necessary operation on others liquid valve indoor and indoor expansion valve and outdoor fan pump down Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second while forced bypass valve is closed The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off V 25 8 Coolant air discharge mode level 2 Used for coolant air discharge Be sure to set up the air discharge tool If the air discharge is not enough perform this control operation again and then check to make sure the
130. erve tank reaches 0 5 liters Q Troubleshooting 1 Check coolant Is there coolant in the reserve tank level 2 Check for coolant leaks 3 Check float Is the voltage between outdoor main board connector switch 3P white CNO37 No 1 and No 3 0 V DC Any external signs of coolant leaks Check visually Replace engine head or gasket Any coolant in the oil pan and operate pump Does the drain emit coolant Refill coolant Replace outdoor main board Replace float switch For work procedure for replacing outdoor main board see 5 Reference Document For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Poor connection contact crimping or broken wires in wiring between outdoor main board connector 3P white CNO37 and relay connector 3P 5 white P Replace exhaust gas Remove drain hose for exhaust gas heat exchanger heat exchanger 2 1 Visually inspect all portions of the coolant system while stopped Any coolant leaks or evidence of coolant leaks Also any water leaks or hose leaks when circulating water and activating pump Use water circulation on No 4 trial operation forced settings menu Press the set key which lights and operates
131. g Diagram page VI 7 IV 85 P15 Complete Refrigerant Gas Depletion Error detection method Engine startup is delayed when compressor inlet pressure lt 0 1 Mpa A delay that lasts 10 minutes is counted as a fault During engine operation complete combustion when compressor inlet pressure lt 0 1 MPa or outdoor heat exchanger outlet temperature saturation temperature gt 30deg continues for 3 minutes the engine is stopped and an error flag is set A Refrigerant Gas Completely Absent fault is assumed when this flag has shut down the engine 5 consecutive times 1 Only during cooling heat exchange outlet temperature is the outdoor heat exchanger outlet during cooling Not detected for 7 minutes from complete combustion If the compressor inlet pressure lt 0 01 MPa for a 3 minute interval an error will be detected even within seven minutes of complete combustion Troubleshooting 1 Install a gauge on a large tube and small tube service port Check open the valve open valve using outdoor main board No 4 trial pressure 1 1 operation forced setting to equalize pressure in the refrigerant 2 1 sensor circuit The values on the outdoor main board display and the 2 1 gauge should be roughly identical Is it 0 1 MPa or less 2 Check wiring Replace pressure sensor ks 9 Yes Repair leak and charge ER Check the compressor relief valve Are there any leaks or signs gas Check compressor inlet press
132. g engine operation The engine is stopped and an error flag is set A flameout error is assumed when this flag has shut down the engine 5 consecutive times in 1 hour Q Troubleshooting 1 Ignition system 1 1 error 1 2 1 5 2 Engine unit error Yes 1 2 Are sparks emitted properly No 1 3 OK Proper ignition timing OK s Adjust timing Any poor connection contact crimping and broken wires in wiring between the outdoor main board connector 6P white CNO10 6P black CNO11 and N 4 4 each IG coil igniter d i Yes 1 5 Ignition plug working properly Replace ignition plug Try replacing the IG coil igniter If fault persists after replacement replace the outdoor main board Measure compression See A06 5 1 Wash valve and adjust valve clearance If still NG replace engine head 3 Fuel regulating 3 1 system error Check operation of fuel gas regulating valve and throttle step motor Operating properly No No 3 2 Inspect zero governor Operating properly Air intake occurring Check rubber plug on intake manifold etc e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 ndoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Elect
133. g measurement 6 Measure the resistance between one end of the indoor outdoor control Ground fault check 6 1 wire and the point of ground screw as well as the resistance between the other operating line end and the point of the ground screw Are both measured resistance values in MQ unit infinite Replace thermistor and wiring V 60 punoJc Jej OJJUOO SOUS Dorop seu nej punoJf JOSUS e eouejstsa si aal ki DEDUEIG wun JOOpU gt z pieoq EUULS pue malos punoub eu useMyeq GEES eunseayy Josues Jun J pueog jeurwwey pue maos punou ay veomjeg eouejstsa ainseayy SsweJos punos6 pue Cp NY Sain JOSUBS ay JO UJOQ JO MeJos punoJB pue Bum Josues SU ueeweq eouejsisaJ AN ey eunseaui ojqeo uoneJedo y Aq pejoeuuoo stun 1o0pino 100pul ey Jo yokes 104 i S IUN Jo Jemod Ho LU oeuo Jne punojJ6 101sruueuy ed JOSUaS P B Synej uoneorunuuuuoo ur 3jnsai osje JIM syjnej punoJ6 Josueg xoeuo Ne punoJ6 JOSUSS pJeoq EU yun Joopjno eui pue pjeoq oJjuoo yun Joopijno ay ueewjeq DUU x29uo pue pDJeoq 04juoo PUN Joopjno BU 104 JO0jsiseJ EU OU YOOYO oo si G JO eouejsisaJ UI JI x oo SI p pue g JO enjeA eoueijsisaJ eu O OOL 01 GZ xoudde si c pue z 1 10 enje eouejsisejeu X un YOeS JO pJeoq eula ey UO eo2uejsisaiJ aINSESN Duesaid JO SISOJ Jeur jun JOOP NO euo UM x je 1NDDO uoroeuuoosIp JO yealq IM y ejdurex3 y y uonoeuuoosip JO Xe9Jq M J9 O4JU0D BJOWS
134. g select operation TEST WARNING LED off 10 Forced engine feedback Level 2 Display E FIE Rejection conditions None Operating method Press the SET S007 key for one second while forced engine feedback is not set TEST WARNING LED light Operation details Activates feedback control Forced setting in progress display TEST WARNING LED light is shown during this time Releasing method Press the SET S007 key for one second during forced engine feedback The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off mr DON 11 Forced engine adjustment valve position Level 2 Display E E t a 8 E Rejection conditions Indoor unit operation in progress Operating method Press the SET S007 key for one second while the forced engine adjustment valve closing is not set TEST WARNING LED light Operation details Set fuel gas adjustment valve at full closing position Forced setting in progress display TEST WARNING LED light is shown during this time Releasing method Press the SET S007 key for one second when forced engine adjustment valve is being closed Forced setting in progress display is canceled TEST WARNING LED off and forced setting selection operation returns After positioning forced engine adjustment valve closing position is canceled automatically V 26
135. gh the high pressure area is high enough the 20 Over rotation during advantage engine speed is still too high Although the high pressure area is high enough the 21 Stop once due to compressor oil return control of unit is in Advantage mode renewal machine Although the high pressure area is high enough it is Stop once due for electric 3 way valve s position put less than 3 minutes since the engine started out control 8 Stop once during heating high load learning control 2 Stop once due to suspicion of flameout 9 Pause due to no compressor oil W MULTI only Stop once due to suspicion of lack of outdoor gas 10 When compressor intake temperature is high but 25 Stop once due to suspicion of clutch connection fault pressure is also high 11 When discharge temperature is high but indoor 26 Stop once due to high pressure sudden increase exhaust is coming out 3WAY only 12 Pressure is high but within 4 minutes from outdoor 27 Stop once due to continuous state of high coolant refrigerant outlet control temperature 13 Pressure is high but during heating automatic 28 Stop once during to outdoor mode switching 3WAY addressing only 14 Pressure is high but during automatic addressing 29 Stop once due to failure to adjust to 4 way valve of other units W MULTI only V 16 5 Error Data Display Level 2 During error log code display pressing the SET S007 key for one second or more act
136. gram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 72 L21 Gas Type Setting Failure Error detection method A Gas Type Setting Failure is assumed on the first occurrence of a mismatch between the gas type setting on the outdoor main board and the fuel change switch setting However a mismatch is not detected after the gas type is confirmed The factory default gas type setting and fuel change switch setting are both 13A Note To use E grade propane as the fuel gas G gas compatible model the fuel flow control value and gas type need to be set e Procedure for setting fuel regulating valve 1 Set the engine mixer P N select lever to the position shown in the figure Rotate the lever 180 counterclockwise to the stopper Do not try to force the lever further 2 Paste the lt Gas type gt and lt Gas type setting and adjustment completed gt labels from the control box at the locations indicated for the PL NAME Q Troubleshooting 1 Gas type setting Fuel change switch Does the gas type setting match the supplied gas type classification Control board menu 10 initial settings gas type setting No Change settings Disconnect outdoor main board
137. i To avoid incorrect operation do not run the signal cable together with the power line cable ii Keep the separation distance of 50 mm or more from the power line cable for Sanyo air conditioning equipment iii Keep the separation distance at 300 mm or more from other power line cables iv If the above cables are run within the separation distance mentioned above place either one of the cable in a conduit v If shielded wire is used ground either one of the cables v1 For signal cable do not wire it using the same cable as power cable Figure 1 vii Do not wire signal cables using multi wick cable Figure 2 viii If there is high frequency devices nearby place the unit at 3 m away from the device Place the remote controller in steel box and the remote controller wire in in a steel conduit or steel conject tube Figure 1 Figure 2 m B m NZ Between units B Multicore cable Ciper ES j Multicore cable at Da Comm nicati n line en V 63 Q Control wire e Indoor outdoor control wire connection example 1 Bus system can be branched to max 16 location Outdoor link is basic Figure 3 Outdoor unit Indoor unit Indoor unit Indoor unit Outdoor unit Remote controller Outdoor unit Indoor unit Indoor unit Indoor unit No remote controller Remote controller Indoor unit Indoor unit Indoor unit No remote controller i Group control Figure 3 Remote controller p Contro
138. ical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Reference Electrical Wiring Diagram C D 1 2 A19 Low Coolant Temperature Error detection method When the coolant temperature does not exceed 60 C during engine operation complete combustion the engine stops momentarily The time varies between 30 to 60 minutes depending on temperature An emergency shutdown occurs when the engine has stopped twice due to this error The cumulative number of times is reset when the coolant maintains a temperature of 60 C or more or exceeds 85 C Troubleshooting 1 Remove the electric cooler three way valve and check whether it is locked Main unit 1 1 Check power initialization current output and actual valve operation Repair or replace the three way valve e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 A20 High Coolant Temperature Error detection method When the coolant temperature gt 100 C continuously for 2 seconds during engine
139. ile memory EEPROM memory clear using menu item No 10 on the outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e LI After changing the model the nonvolatile memory EEPROM is cleared memory clear Outdoor unit model display menu item No 03 sim Emme Undetermined SEW 120M2 W MULTI SERA 150 M2 W MULTI 3WAY Sabie 190M2 W MULTI 3WAY G POWER W MULTI ID d 240M2 W MULTI 3WAY IV 71 L13 Indoor Unit Model Type Setting Failure Error detection method An error is determined when an incompatible model or capacity is set When the indoor unit model or capacity is set incorrectly in remoto controller detailed settings mode Troubleshooting 1 Does the outdoor unit warning display show L02 ae Does the model item code 10 and capacity item code 11 in setting 1 2 remoto controller detailed settings mode match the actual indoor 1 3 This model cannot be connected Change to a compatible indoor outdoor unit 1 4 In the remoto controller detailed settings mode set the correct model and capacity e See 5 Reference Document for detailed remoto controller settings e For board and Electrical Wiring Dia
140. in approx 1 second cycles in the sequence of Outdoor error Outdoor warning Indoor error Example G G B R O Outdoor unit fault Forced Setting Activated Display Level 0 Conditions Forced setting effective Display TEST WARNING LED flashing Under these conditions during the normal display pressing the SET S007 key for 1 second cancels all forced settings D Startup Wait Display Level 0 Displayed when waiting for startup Display examples P Ui3 High compressor outlet temperature F 5 Complete gas depletion check underway Hd D High coolant temperature Ale Low coolant level Hd d During coolant circuitry check Did D Depending on unequalized pressure A Low engine oil level Total OFF Display Level 0 Setting the STOP switch S001 to STOP activates total off The normal display at this time is PAUSE examples P R ulS E During total OFF display when STOP switch input is set to STOP P ott Inthe case of W MULTI this display appears after 3 minutes G System OFF Display Level 0 The following display appears during stopped system after system stop command is received However this does not apply during automatic addressing When the system is off all key operations are invalidated other than the Version Display SltlalP Version Display Level 0 During a simultaneous long press of the SET S007 key and DOWN key S006 the following display appears ever
141. ine 2 1 Measure compression See A06 5 1 NG l2 Wash valve and adjust valve clearance If still NG replace engine head 2 3 Are sparks emitted properly 2 4 Inspect ignition plug K G K 2 7 G K 2 8 G K 2 9 1 IV 13 A10 Exhaust Gas Temperature High Error detection method During engine operation complete combustion when the exhaust gas temperature gt 130 C continuously for 10 seconds the engine is stopped momentarily and an error flag is set An Exhaust Gas Temp High error is assumed when this flag has shut down the engine once Q Troubleshooting temperature 1 1 2 Exhaust gas E Measure actual exhaust gas temperature Is it high Replace exhaust gas heat exchanger 2 Measure exhaust gas temperature sensor resistance See 5 Reference Document for SEE MIS and thermistor characteristics Check coolant Check for any disconnected hose Disconnected amount e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 14 A11 Engine Oil Level Error Error detection method e An Engine Oil Level Error has occurred when the oil level switch does not go on after 60 minutes of oil pump operation with the oil level L switch in Off position lo
142. ing displayed etc 0052 UP DOWN SET 005 S006 S007 004 HOME 0053 Q S001 All stop switch e This switch is used to terminate all the units at the same time e Moving this switch to the Stop side executes all units to stop and is thus used during maintenance and other occasions when it is necessary to have the units not operate e The switch is set to STOP at the factory before shipment and thus needs to be switched to the NORM side for test run NORM STOP STOP SW e For W MULTI system For W MULTI system total off can be set to each outdoor unit individually Outdoor units without total off set operate as outdoor units with CCU function Caution Because outdoor units set to total off have their valves opened if other outdoor units are operated this way refrigerant will flow to the outdoor units with total off set causing malfunction Therefore be sure to close the valves of refrigerant gas tube refrigerant liquid tube and balance tube of the outdoor units set to total off If all outdoor units of the system are set to total off then there is no need to close the shutoff valves Use the following procedure to turn off circuit breaker of one or more outdoor units and perform maintenance 1 For one unit set the STOP switch the STOP side P R u E appears 2 After approximately 3 minutes F n F F appears 2 Then turn off the
143. ing 07 Outdoor unit setting 08 Outdoor unit setting 09 Outdoor unit setting 0A Outdoor unit setting Ob Outdoor unit setting OC Outdoor unit setting OD Outdoor unit setting OE Outdoor unit setting OF Outdoor unit setting 10 Number of indoor unit connections ditto Gas type Minimum setting rotation speed Maximum setting rotation speed Oil change display switching Oil change setting 100h Cooling heating automatic mode Outdoor unit capacity 3 phase Single phase setting Outdoor unit type Model type setting 1 Model type setting 2 System address Outdoor unit address Number of outdoor unit connections a 1 Cooling high pressure offset a 2 Heating high pressure offset a 3 Cooling low pressure offset a 4 Heating low pressure offset a 5 Cooling low pressure offset 2 a 6 Heating low pressure offset 2 Fuel gas adjustment valve offset Silent mode Silent start time Silent end time Flameout detection Antifreeze temperature V 29 Outdoor Unit Setting List 2 60 Outdoor unit Thermostat off diff 90 Outdoor unit Thermostat on diff Pressure sensor ignored Cooling heating select diff GUF thermostat off diff GUF thermostat off diff GUF cooling heating select diff Indoor electric valve opening and closing Indoor drain pump on off Antifreeze timer Cooling heating automatic mode Rotation speed reference Ignition timing offset Snowfall control V 30 Outdoor Unit Setting List 3 CO
144. ing indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 01 to 31 etting Level 2 Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 Not set 01 to 48 Number of indoor unit connected in same system 1 to 48 units The number of indoor units that can be connected is restricted separately by each model 5 Gas type setting Level 2 Rejection conditions Setting start operation method Setting change operation method E le mE xampe TRN IE Setting confirm operation method
145. ing to cooling dry If Being controlled by operation mode is displayed When already being operated by another remote controller the selectable operation modes are limited When the following are displayed on the remote controller If Being controlled by operation mode is displayed When already being operated by another remote controller the selectable operation modes are limited e H Operation standby is displayed In priority operation standby e If Central control in progress is displayed Operation is limited by the central control unit Adisplay appears but then vanishes Valve open or water circulation has been set with the outdoor main board menu item No 4 test operation forced setting When the engine is started an alarm displays on the 7 segment LED display Engine start standby is displayed during menu item No 0 normal display If the unit is in start standby and each start condition is not accomplished when the engine is started the uncompleted start condition 1s displayed on the 7 segment LED There are 5 types of start conditions some that start automatically after a set time and some that become abnormal See IV 1 4 3 for a list of startup conditions The outdoor unit does not operate at all The temperature controller is operating thermo off Cooling is poor heating is poor Is the temperature controller remote controller temperature properly set Is there
146. inuously for 10 seconds Engine revolution speed is more than 2 500min continuously for 1 second If any of above conditions occur the engine stops momentarily and an error flag is set An Engine Speed Too High trouble is assumed when the error flag has stopped the engine 5 consecutive times in 1 hour Q Troubleshooting Check 1 1 Measure actual revolution speed using a revolution meter Was there revolution high revolution when the error occurred speed 4 1 Is the throttle valve locked or sticking 3 o 3 Compressor 3 1 Does the compressor have any reason for abnormally low load 4 Ignition 4 1 Ignition coil cam angle sensor and crank angle sensor pulse n the relay part is the wiring for the throttle step motor and fuel regulating valve crossed g Does the throttle step motor coil resistance measure about 1200 5 6 6 1 5 Any poor connections poor contact or broken wires between throttle Reset the power Wiring step motor wiring and connector Wiring from outdoor main board Yes after repair 1 connector 6P black CNO66 to throttle step motor wiring 1 6 Mi Disconnect relay connector 6P 1 and measure between No 1 red and No 2 No 3 and between No 4 orange and No 5 No 6 Is 4 V DC applied between control board connector 6P black CNO66 2 No 1 and No 2 No 3 as well as between No 4 and No 5 Repl td No 6 when turning the power ON during positioning
147. ion an error flag is set An abnormal stop results on the first occurrence However if turned OFF the error flag is automatically reset and the starting sequence continues Q Troubleshooting 1 e Yes 2 1 inai Does the error clear when removing the engine head Engine internal il th bell 2 pressure cover oil cap or the sub oil pan cap No 3 1 2 2 4 Check for pinched or clogged hoses Engine to sub oil pan connection hose blowby Hose hose and equalizer hose Wiring Does this recur even when disconnecting the wiring Yes 3 2 connected to the oil pressure switch Note Never allow the disconnected wiring to touch the frame or Replace uil pressure Is there a ground fault in wiring between the outdoor ai main board connector 2P pech CN012 and the oil 3 2 pressure switch Remove the wiring between the connector and the oil pressure switch and measure Replace outdoor main resistance between wiring and the engine board e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 ndoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 32 With oil pressure DCOV No oil pressure DC12V IV 17 A15 Starter Power Source Output Short Circuit
148. ion between power control box and ground wire connected to outdoor unit Check with tester No 4 2 Check error 3 4 Check error history Has E31 occurred frequently in a short 4 Possibly the effect of random noise Keep using under observation Measures 4 2 Polish contact with wire brush etc to attain conduction between electrical box and ground wire connected to outdoor unit Any poor connection contact crimping or broken wires in wiring 4 3 between the power board connector 3P white CN024 and the outdoor main board connector 3P white CN083 Is the outdoor unit a G Power W MULTI Any poor connection contact crimping or broken wires in wiring Yes Repair wiring between converter ASSY 1 or 2 2P red CN016 and outdoor main board connector 2P red CNO20 Is a short circuit connector connected to converter ASSY1 2P black CN044 Both 1 and 2 are blinking No 4 8 4 7 ls LED7 for converter ASSY1 or 2 blinking Neither 1 nor 2 is blinking 1 or 2 is blinking 4 9 Replace power board and keep under observation If E31 recurs replace the outdoor main board and keep the system under observation If converter ASSY1 and 2 do not blink replace them and keep the system under observation Replace the converter ASSY that is on and keep the system under observation The converter ASSY cannot be checked if the engine is not running e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2
149. iter 1 UPNDD 400V 30MFI MM EE mm ma C e I Si Si RES C2 Capacitor 2 630V TMF d ame d S B s B PEE C3 Capacitor 3 630V 1MP aw S S B S SES DI Diowe 1 DBA250G BRN h HB Q pa et 35 2a Ee Ne 55 gn aa PEPE ennn 1 MEE D2 Diode 2 KD160KB40 Seet UP ba da ma EE aa ee i ze d IL Coapressor Due Tespetoture Sensor Bos Eno d i oppressor Dutiet Temperature Sensor TRM H Vale ees Gi Gay i H i TH3 feet GH 5 ETT Tenpetotuts gensor BLCK 1 8 i H TH4 eat Exchanger niet Temperature Sensor C First Third Fust G N P i H 1 782 bs E SHM nnb Angte Cylinder Zei age Katustment Cheek 8 Used For Fuet Gos T THS _ Cooltng Water Temperature Sensor V 7 Ripssune d aging ansor Sansar Second Torrin Vaive Sw THe THA W Systen Refrigenent i L Pressure SW TH7 Outdoor Temperature Sensor ovarno ylindar ylinder e H POWER UNIT Used tor Gas Cutout Fuel Qos Volvo 1 2 H Top Ciutch Coit Temperature Sensor F SUPPLY CONTROL Hot Water Engins Valve Kit V Oi Iniet Side TH8 Catalyst Temperature Sensor RINE Syetan en SG v Dv 1 VG02 Gove rno r Side TH10 Hot Water Outlet Temperoture Sensor med mend Wiese ess aandeed i TH1j Di Level Measurement Temperature Sensor L zm 4 Used For 3Way Systee OPTION z Fue Gos Box TH14 Clutch Coit Temperature Sensor 2 TH15 Exhaust Gas Temperature Sensor TH20 Generator Temperature rH21 i GBT Temperature at CONI PCB ASSY TH22 i emperature of N E rH22 1GBT T CON2 PCB ASSY 00 0
150. ivates the error data display at that time EIK PL LI Pressing the SET S007 key gt t Example LI Pressing the SET S007 key again for one second or more or when there are no operations for 10 minutes returns to the normal display d Example 1 t 8 3 4 5 Pressing the SET S007 key gt Data 1s displayed by selecting with the UP S005 and DOWN S006 keys Data display example Outdoor unit data T Beyond this point is data Data code Indoor unit data D t H re utu fete T T From the second point is data Up until the second point is data code Up until the first point are indoor unit numbers Data from 5 10 and 15 seconds before is identified as follows RIA galt T From the second point is data Up until the second point is data code Up until the first point is identification of data R5 b10 and C15 seconds before V 17 6 Error log data Error occurrence date Error incident time Abnormality code Engine operation time hours Number of engine operations times Starter operation time sec Number of starter operations times Set engine rpm min 1 Engine rpm min 1 Compressor inlet pressure MPa Compressor outlet pressure MPa Compressor inlet temperature C Compres
151. kQ or more Less than 240 Q Troubleshooting 4 1 Poor connection contact crimping or broken wire or pinched wire Yes Repair wiring Check wiring in sensor connector and wiring 2 1 Replace indoor water Tea Disconnect the sensor connector and measure the resistance heat exchanger unit temperature value control board sensor Is the resistance between the broken wire detection value and the short circuit detection value Replace temperature sensor e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See the instructions supplied with the servicing indoor board water heat exchanger unit for procedure on replacing the indoor water heat exchanger unit control board IV 55 F04 06 08 12 13 17 18 H08 Outdoor Unit Temperature Sensor Error Error detection method An outdoor unit temperature sensor error constantly detects any broken wires or short circuits and an error is determined when error conditions are met once Error conditions are given below Broken wire detection Short circuit detection Display Sensor name resistance resistance Fo Compressor outlet temperature sensor Note 1 Less than Lessthan1300 Bee heat exchanger inlet temperat
152. keys and then set with the SET S007 key Setting changes are performed with the UP S005 and DOWN S006 keys and confirmed with the SET S007 key The HOME S004 key is used to display the normal display the contents of any settings in progress will be canceled Simultaneously pushing the HOME key S004 and DOWN S006 key for 1 second displays the version Pressing the SET S007 key for one second while operation data is displayed No 0 cancels all forced settings The times appearing for flashing cycles operation key depressed period and other indications are approximate values and not necessarily the accurate times 6 Normal Display Level 0 The normal display appears after passing through the display subsequent to turning the power supply ON when selecting menu No 0 or when no key operation occurs for 10 minutes Normal Display Level 0 On this outdoor unit system the following data displays are repeated at 10 second intervals Display Display contents Display examples Remarks sequence 1 Lu Number of indoor units Outdoor unit address l System address Number of indoor units Indoor units 20 units Outdoor address It is always 0 System address System 01 Engine operation time i ta 3 u 5 12345 hours Compressor inlet pressure i2 10 4 Compressor outlet pressure 3 2 a 8 When conducting automatic addressing in place of engine operation time the display will indicate that
153. lation to that HOME Q value the value will become 3 after the setting is made The display will show EE 3 figure below right HOME Q iv With 8 amp amp right figure displayed press the SET key S007 for one second or more The TEST WARNING LED D052 will go out and LEVEL LED D053 will light The ignition timing offset mode will be cancelled and the setting process will be ended HOME Q V 51 Correction example b The adjustment value is 10 BTDC but the observed value was 13 BTDC Press the UP S005 or DOWN S006 key to set a correction of 3 in relation to the current B B ignition timing offset value i Display the current B B ignition timing offset a value and check it The current value is zero 0 l The display for amp 8 will be as shown at I right N DOWN sET S006 5007 ii With 8 amp ignition timing offset displayed B e B press the SET key S007 for one second or more su O The TEST WARNING LED D052 will light and HOME poss LEVEL LED D053 will flash ili Press the UP S005 or DOWN S006 key to set a correction of 3 in relation to the current value checked in ii The display will show amp amp 3 right figure Caution The display example
154. lay the time and set the date 1 Date display Level 0 2 3 Displays the date Example 2 amp 8 4 8 7 Example April 1 2008 Date display Level 1 In the date display mode pressing the SET S007 key activates the next display Example 8 8 8 4 8 i Example April 1 2008 In this state pressing the UP S005 and DOWN S006 keys toggles between the dates and time displays tDOWN mlana Date display JUP Clock setting Level 2 In the date display or time display mode pressing the SET S007 key for one second or more activates the clock setting function Example f 8 5 4 0 i Example Year 2008 Each time the SET S007 key is pressed the set items is confirmed and the set item moves to the next one in the order shown The set item returns to Item 1 after Item 5 As each item is displayed operating the UP S005 and DOWN S006 keys makes it possible to change the value settings When clock is set the clock stops and the number of seconds is set to 0 When completing the clock setting push the HOME S004 key for 1 second This clock may be set for up to year 2099 with adjustments for leap years it may be set for beyond that year as well When the power supply is turned on detecting a halt in RTC oscillation causes the clock to be set at the initial value February 1 2003 12 00 00 V 46 8 Ignition Timing Check and Adjustment Preparation for work Turn off
155. lectrical Wiring Diagram page VI 7 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board E12 Automatic Address Setting Is in Progress Automatic Address Setting Start is Prohibited Error detection method An error is determined when an auto addressing startup command is received from another unit during autoaddressing Inasystem with multiple outdoor units with indoor outdoor operation wiring connected with link wiring an autoaddressing startup command was issued by another unit during auto addressing Q Troubleshooting In a system with multiple outdoor units with indoor outdoor operation wiring connected with link wiring an autoaddressing startup command was issued by another unit during auto addressing Wait until current auto addressing is complete e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 E13 Indoor Unit Transmission Failure to Remoto controller Error detection method When a signal transmitted from the indoor unit water heat exchanger unit to the remoto controller cannot be self received an error is determined Indoor unit water heat exchanger unit control board is defective e Short circui
156. ller At least 2 m apart 2 In 1 if there are more than 17 branches reduce the number of branch locations Figure 4 lt Example gt Putting 2 refrigerant systems to 1 wiring system Outdoor unit 1 Controller Outdoor unit 2 E Remote controller Indoor unit Indoor unit Indoor unit Outdoor unit 3 7 S No remote controller K Remote controller Indoor uni Indoor unit Indoor unit Outdoor unit 4 S No remote controller Remote controller Group control Indoor unif Indoor unit Indoor unit Outdoor unit5 gt No remote controller het Remote controller L No remote controller i Remote controller Group control Figure 4 V 64 3 Wiring without branching Figure 5 Column Part of indoor wiring branches Outdoor unit If this portion is 1 m or less it is not considered a branch x Outdoor unit Indoor unit Indoor unit Indoor unit Remote controller Controller Indoor unit Indoor unit L Indoor unl No remote controller Figure 5 Remote controller 4 Star system is prohibited Figure 6 Indoor unit Indoor unit Indoor unit Controller Do not connect more than 3 cables to a single branch point Figure 6 Outdoor unit 5 Branches after branching branching of location that cannot be branched in a single stroke are prohibited Figure 7 Outdoor unit Controller O
157. lve 1 between No 3 9 Note that suction valve 1 closes when powered the other valves operate in the opposite way Any poor connection and broken wires in wiring between the outdoor main board and the relay board In No 4 test mode when v open valve open is there an output voltage AC 200V from discharge valves 1 1 1 2 discharge valve 2 suction valve 2 1 and 2 2 Replace relay Does suction valve 1 output a voltage AC 200V during cooling board operation Adjust the solenoid valve coil Resistance Replace Be sure to turn the power off before starting work is normal solenoid valve Disconnect the connectors of discharge valve 1 1 1 2 discharge valve 2 suction valve 1 suction valve 2 1 and 2 2 from the relay board and measure the resistance between No 1 and 3 Abnormal Replace the Normal value 20C discharge valve 1 1 1 2 543 ohm resistance Solenoid valve discharge valve 2 1132 ohm coil Suction valve 1 1197 ohm suction valve 2 1 2 2 543 ohm Is the coil operating normally IV 75 e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e 1 1 30 C
158. main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 ndoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 50 E22 Outdoor Main Board Sensor Error Error detection method The voltage in the input circuits of the outdoor main board sensor is unstable and fluctuates Troubleshooting Gu 1 1 Turn OFF the outdoor unit then turn ON and observe main board If the error recurs replace outdoor main board e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 51 E24 Communication Failure between Outdoor Units for only W MULTI Error detection method An Outdoor Communication Unit Failure is assumed when communications between outdoor units in the same refrigerant system are not possible for 2 minutes e An outdoor unit address has not been properly assigned Outdoor unit power is OFF Q Troubleshooting Have outdoor unit addresses and outdoor unit and number of 1 1 connected outdoor units been properly entered Enter the data correctly 1 2 Have all outdoor units in the same system been turned on Turn power ON The indo
159. ms Unplug indoor electric valve connector 6P white and measure resistance i of electric valve coil between No 5 and No 1 4 using a tester Replace coil Red Bs White if 0 2 or oo 46Q is normal ij B Phase B Phase COM B t e 9 1 Check outdoor electric valve and backup stop valve Check by using the following procedure to display the P20 stop data nonvolatile memory on the 7 segment LED a In No 1 Error data display lightly press the set key once b Select data code 1 3 using the up and down keys and press set key for 1 second or more c Use the up and down keys to change the display data to compare outdoor heat exchanger inlet temperature data code 16 with compressor inlet temperature data code 14 If the outlet temperature is lower the outdoor solenoid valve may be locked IV 91 e 10 1 Check high pressure sensor Compare control board display and gauge display o Install gauge on high pressure side and display the outdoor Yes To Confirm pressure main board compressor outlet pressure Use No 0 Operation while stopped data display data code 11 Is the difference between display value and gauge pressure within 0 1MPa No To Operate heater or cooler and check the outdoor main board Vas Pressure sensor is Confirm pressure compressor outlet pressure display normal while operating Is the difference between the display value and gauge pressure de a Is there a DC 5V voltage between the outdoor main
160. n When the system does not start up IV 1 3 see section on engine start standby 2 4 Use a different mode cooling or heating to restart from 1 1 If no error is found keep under observation IV 88 P20 Refrigerant High Pressure Error Error detection method e When the high pressure sensor value gt 3 75 MPa during engine operation the engine stops and an error flag is set A Refrigerant Pressure Too High fault is assumed when this flag has stopped the engine 5 consecutive times in hour When revolution speed setting is more than minimum revolution speed and fan frequency is less than 50 of maximum frequency an error is not generated The engine stops momentarily Troubleshooting 1 Cooling Heating mode 2 outdoor heat exchanger 3 Tubing 4 Check unit 5 Check indoor heat exchange 7 Indoor coil sensor 8 Check hot and cold water Cooling mode Heating mode Visually any debris etc clogging heat exchanger Any air shortage Does the outdoor fan turn Any crushed tubes torn strainers closed servicing valves etc Check at indoor coil temperature Which is connected an indoor unit or water heat exchanger unit Indoor air filter clogged Does the indoor fan turn Check indoor electric valve Does electric valve open Check indoor coil temperature during eater operation Check indoor control board When turning power ON is there voltage between ind
161. n method When input from the sensor meets the following conditions an error is determined upon 5 consecutive occurrences in hour e When starter current was detected during cranking but crank angle sensor input is not detected for 2 continuous seconds When starter current was detected during cranking but cam angle sensor input is not detected for 3 continuous seconds Q Troubleshooting 1 Yes 1 3 Crank angle 1 1 Does the starter operate sensor trouble 1 2 4 2 Check starter S terminal for short circuit or ground E starter fault and starter B terminal for broken wire Yes i wiring Poor connection or broken wire in crank angle No wiring Replace outdoor main board If NG replace sensor 2 Ce Cam angle p ti brok jt Yes Repair wiring sensor rouble oor connection or broken wire in cam angle sensor wiring 2 2 Replace outdoor main board If NG replace sensor e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Reference Electrical Wiring Diagram B F 1 2 A25 Clutch Error Error detection method A Clutch Error fault is detected when clutch coil temperature or
162. n wiring between W MULTI outdoor units in the same refrigerant system connected Repair wiring Are all W MULTI outdoor units in the same refrigerant system 2 medon Turn power ON Is the S010 terminal resistor switch on the outdoor main board correctly set Regardless of system addresses 1 outdoor unit in the same N Enter the dat tl link wiring must be set to Short terminal resistor on O EMEF EE 3 3 Replace outdoor main board e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 53 E31 Communication Failure between Units Error detection method A Unit Internal Communication Failure is assumed when internal communications between units is not possible for 3 seconds for a G POWER W MULTI it is when communications between an outdoor main board and converter ASSY and 2 is not possible for 30 seconds Q Troubleshooting 1 Check board Turn outdoor unit power ON again Does E31 recur in one 12 perate engine for about 5 minutes using trial operation etc Does E31 recur No 3 1 icu 2 1 Is the outdoor unit grounded Connect to ground 2 2 Conduct
163. nconsistencies in Number of Outdoor Units for only W MULTI E31 Communication Failure between Units F01 02 03 10 11 Indoor Unit Temperature Sensor Error aaan nnenenereneeenereneeen F04 06 08 12 13 17 18 HO8 Outdoor Unit Temperature Sensor Error F16 Compressor Inlet Outlet Pressure Sensor Error a nanann eneen een en nennnnneneneen vereen F20 Clutch Coil Temperature Sensor Emor nennen F21 Clutch 2 Coil Temperature Sensor Emmor nnn nnnn nenene F29 Indoor Nonvolatile Memory EEPROM BMG rnaar F30 Real Time Clock RTC Function Error E F31 Outdoor Nonvolatile Memory EEPROM Error seen HO7 Compressor Oil Depletion Error for only W MULTI eenen LO2 Inconsistencise in Indoor Outdoor Unit Models non GHP equipment connected LO3 Multiple Main Units Set for Group Control L04 Duplicate System Outdoor Unit Address Setting essssssssse L05 06 Duplicate Indoor Unit Priority Setting necne eter menn renun LO7 Group Control Wire Present for Individual Control Indoor Unit LOS Indoor EE L09 Indoor Unit Capacity NOEUSBU dad Eeer L10 Outdoor Unit Capacity Not Set oett nent c enen nenvenannsenntenkden L13 Indoor Unit Model Type Setting Failure sn ngen neden dede L21 Gas Type Setting FAS T TR P01 Indoor Fan Error Indoor Unit Fan rpm Error sess Not det
164. ndoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 V 31 E01 Remote Controller Receive Failure Error detection method An error is determined when no incoming communication is received for 3 minutes When or more indoor units are wired into the remoto controller group When inspection inspection pin or TEST test pin on the indoor control board is short circuited When the non volatile memory EEPROM is not inserted or has failed upon turning power ON Indoor control board failure ev Yes No S Has auto addressing failed warning displayed on outdoor unit 1 3 Perform pre check before auto addressing See 5 Reference Document R CN NM Group control Is this indoor unit group controlled Are any indoor units wired into the remoto controller Turn powenen Are 9 or more indoor units connected to one remoto eem controller group wiring Was the remoto controller group wiring modified 2 4 after autoaddressing was complete Or were group settings changed using the remoto controller properties setting mode 2 5 No main unit present in remoto controller group wiring gt Repeat auto addressing Is the inspection pin CNO62 CNO71 or TEST pin Eliminate short circuit CNO064 on the indoor control board short circuited Is an option board CNO060 or wireless remoto 3 2 controller CN041 conn
165. net Switch A1 A2 Repair wiring Y Replace Power Is there AC200V between power board connector 5P yellow CN002 ES board No 1 and No 2 2 l Ignition coils At magnet switch ON is there DC11V or more between outdoor main board connector 2P black CN006 No 1 and No 2 With outdoor main board connectors 6P white CNO10 and 6P black 2 CNO011 disconnected at magnet switch ON is there DC11V or more between outdoor main board connector 2P black CN006 No 1 and No 2 2 E Replace ignition Check for wiring ground fault or short circuit from outdoor main board coil connector 6P white CNO10 and 6P black CNO11 to each ignition coil At magnet switch ON is there AC11V or more between power board connector 2P white CN022 No 1 and No 2 5 connector 2P black CN025 and outdoor main board connector 2P black CN006 No ee At magnet switch ON is there about AC11V between starter power Wiring connection contact poor or wire broken between power board 2 starter source relay connector 2P 18 black No 1 and No 2 Replace power board Nol power source 3 2 Wiring connection contact poor or broken wire between power board connector 2P white CNO022 and starter power source relay connector 2P 7 black Repair wiring Vas Replace starter At magnet switch ON is there AC200V between starter power source power source relay connector 2P 4 white No 1 and No 2 wl o
166. ng mode TEST WARNING LED off Operation The 3 minute off time timer counts at 10 times or greater speed than normal The forced setting in progress display appears during the double speed setting TEST WARNING LED light V 23 Test Run and Outdoor Unit Forced Settings No 4 Level 0 lt nlali 4 gt Key operation is used to determine the settings for forced test run forced bypass valve closing forced water circuit and forced valve opening 1 Test run and forced setting EE AE n display Level 0 Displays of the test run and forced settings selected with the menu E 2 Forced setting selection operation Level 1 Pressing the SET S007 key in the test run forced setting display mode causes the following display to appear Operating the UP S005 and DOWN S006 keys in this mode makes it possible to select the settings for forced cooling test run forced heating test run forced valve opening forced water circuit forced bypass valve closing forced engin closing Display e distributor mode forced engine feedback and forced engine adjustment valve EZ n a rn ul C a cr r1 r n BN S zm rn at za ZE ira mi a ij o rm ii 1 rn bel Forced cooling test run setting Forced heating test run setting Forced bestoen Forced bypass valve closing Coolant air discharge mode Forced engine distributor mode
167. nge operation method Wis Example E B Setting confirm operation method re Li Setting cancel operation method Setting range Multi compressor and 2 clutch different capacities t Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 05 17 Tube connection confirmation Level 2 Cannot be set if not W MULTI gt Rejection conditions Setting start operation method Setting change operation method Indoor unit operation in progress cooling automatic addressing in progress Push the SET S005 key for 1 second Forced error LED light Automatic completion Press the SET S005 key for one second when turning off Forced error LED off 18 Heating automatic address setting Level 2 Rejection conditions Setting start operation method Setting change operation method Not accepted during indoor operation Press the SET S007 key fo
168. nnect it to the designated sockets Faulty directional installation will cause the memory to break Fit the notched section of the IC socket into the notched semicircle section of the nonvolatile memory Nonvolatile memory IC socket e Because the legs are easily bent be careful when removing or plugging in the memory 3 Turn on the power supply 4 At the initial setting match outdoor unit capacity models etc to the outdoor models 5 For subsequent outdoor unit settings set the other parameters to the best of your knowledge 6 Confirm operation 7 Always be sure to readjust engine ignition timing 2 Outdoor Main Board Switch LED Configuration Diagram 1 2 wazima O SES om ou lt 8 v E3 Fines EE n 5 Sai WE gt 8 Em BE 8 ZS Z E Be zs Bx GE WW Si eg TIS H em g z Be Sz 5 6 az S 2x8 mog l eS p tastes ED kes SER wis ef Z Bs TES TUS I II sco CC OG n Fr Fh EE PEEL PES E 2 52e zgil mx SEKR zes Ez B le 2 Bb amp 2 Oxo IL zal TE vom e Per Sue ah Sea z al 8 aan d zal fa roo nas cr LS ay E oF 28 nnn E S e ma sm E taoa el LHA we of ag EOS pr nmn 2B LHA h ad
169. nstalling multiple W MULTI model outdoor units Number of indoor unit connected setting Capacity setting cannot be set Gas type setting Refrigerant setting Do not change the setting Generator setting Engine type setting Model 1 setting Model 2 setting Region setting N P determination setting Hot water setting oil change display setting Single phase setting Compressor setting Tube connection confirmation Heat automatic address setting Cool automatic address setting During change operation of each setting TEST WARNING LED lights 1 CH co zi ra 1 EE ra ru E EN mi irr 20 co co Ein HL ra r 1 d ra ru D ra UE a 1 r2 co ra D O 3 T LEI ca i ra co d E3 ra Dn D O D d by zn ra ru kel ra V 38 3 System address setting Level 2 Rejection conditions Setting start operation method Setting change operation method alulk ld re H Lt Example ofufe Setting confirm operation method Setting cancel operation method Setting range 4 Number of connecting indoor units s Rejection conditions Setting start operation method Setting change operation method ra MEC Example MEX Setting confirm operation method Setting cancel operation method Setting range Not accepted dur
170. ntering the setting start operation or setting change operation completed press the SET S007 key for one second This cancels the forced setting in progress display returning to indoor unit setting item select operation TEST WARNING LED off Setting cancel operation method Pushing the HOME S004 key for 1 second before setting confirm operation returns operation to normal Setting details will not be cancelled when pushing the HOME S004 key for more than 1 second during indoor unit setting item select operation V 32 4 Outdoor Unit Setting List Indoor unit setting 1 indoor unit 1 Indoor unit setting 2 Indoor unit setting 3 Indoor unit setting 4 Indoor unit setting 5 Indoor unit setting 6 Indoor unit setting 7 Indoor unit setting 8 Indoor unit setting 9 Indoor unit setting A Indoor unit setting B Indoor unit setting C Indoor unit setting D Indoor unit setting E Indoor unit setting F Indoor unit setting G Indoor unit setting H Indoor unit setting Indoor unit setting J Indoor unit setting K Indoor unit setting L Indoor unit setting N Indoor unit setting O Indoor unit setting P Indoor unit setting Q Indoor unit setting R Indoor unit setting S Indoor unit setting T Indoor unit setting U Indoor unit setting V Indoor unit setting 1 indoor unit 2 Indoor unit setting V indoor unit 48 Display F ANNE RN examples 0 1 Gas tube valve present absent 07 Lowest priority to 4 Highest pri
171. ocedure to replace the water heat exchanger unit control board see the instructions supplied with the service water heat exchanger control board IV 94 P26 Clutch Connection Error Error detection method A Clutch Contact Failure is assumed when the following factors have occurred 5 times When compressor vane assessment 60 seconds failed during startup When revolution speed did not slow down and there was no change in pressure after 3 minutes of clutch operation during complete engine combustion Q Troubleshooting Does each clutch operate normally after starting the engine 2 1 No Yes 2 2 Check conductivity of wiring in clutch that became defective Repair wiring Poor contact in wiring of clutch that became defective Yes 4 1 If the defective clutch is clutch 2 check if DC voltage is applied o to outdoor main board connector 4P blue CNO17 Replace outdoor main No board Yes 5 1 Gom bone Does the relay RY1 in clutch 2 operate normally No Replace relay 5 Compressor Replace 5 Is compression defective No Keep under observation e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 e Outdoor Unit Electric
172. off turn on the circuit breaker If Test run No 4 Test Cool Heat is set cancel it When adjusting to No 4 Test Cool or Heat if TEST WARNING LED D052 lights this means Test run is being set In this state press the SET S007 key for one second or more The setting will be canceled TEST WARNING LED D052 goes off Oe 3 Malfunctions and Displays 1 Malfunctions without any display The circuit breaker trips when power is turned on e Short circuit or ground fault of the crankcase heater current leakage in electrical parts Q Circuit breaker trips when operated e Current leakage or short circuit in fan or coolant pump current leakage or short circuit in electrical parts Poor cooling I Problem in refrigeration circuit e Clog in refrigeration circuit faulty 4 way valve faulty electric valve in indoor outdoor unit compression failure or shortage of refrigerant e Shutoff valve not completely open 2 Small fan capacity e Clogged air filter foreign matter in air inlet outlet 3 Other e Insufficient refrigerant tubing insulation Poor heating I Problem in refrigeration circuit e Clog in refrigeration circuit faulty 4 way valve faulty electric valve in indoor outdoor unit compression failure or shortage of refrigerant e Shutoff valve not completely open 2 Other e Insufficient refrigerant tubing insulation Heating on standby does not clear e Warm air is striking the room temperature sensor temperature
173. on Data Display No 00 n a 8 The normal or special display usually appears with key operation used to display current data 1 Normal display Level 0 On this outdoor unit system the following data displays are repeated at 10 second intervals Display sequence Display contents Display examples Remarks Address display dela System 01 20 indoor units Engine operation time E 12345 hours hours 2 Compressor inlet nIn pressure MPa edet 3 Compressor outlet RIR pressure MPa els 2 Total OFF Setting Display Level 0 In normal display state moving the outdoor board STOP switch S001 to the STOP side causes a shutdown of all units In the normal display state Total OFF is normally displayed as P R 4 E PAuSE As usual pressing the SET S007 key changing to Level 1 activates the display of operation data Operation Data Display Level 1 In status 1 or 2 pressing the SET S007 key activates the display of the system data 3 Example u 5 t amp 8 B Pressing the SET S007 key gt DI d R E R Pushing the HOME S004 key for 1 second or more or with no operation for 10 minutes activates the normal display Data 1s displayed by selecting with the UP S005 and DOWN S006 keys Data display example Outdoor unit data From this point is data
174. on method Setting range 12 N P determination setting Level 2 Rejection conditions Setting start operation method Setting change operation method E le n P xample rp Setting confirm operation method rm Li Setting cancel operation method Setting range 1 Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 02 ma ra Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00to 01
175. on system controller IV 96 P31 Group Control EMO seise REER RERE AER ERRER ERRER IV 97 Ol Change ime Ala ET IV 98 Reference Document zsm V 1 1 Outdoor Main Board Replacement Sequence and Remote Controller Service Function VA 2 Outdoor Main Boards Switch LED Configuration Diagram V 3 KIRCH CR V A 4 Display Component Specifications nnn neananenneenenennnnnnnnnernennnnnnnenen V 6 5 Operation Unit Specifications nennen eee nen en ennnnnnnnnnnnnnnnnnnnennnnnnnnenenn V 7 6 Normal Display Level 0 REENEN V 8 7 m Display zegesin V 10 8 Ignition Timing Check and Adjustment esee V 47 9 Thermistor characteristic graph nana nennen ee nenenennennenennnnennen V 55 10 Checks Prior to Automatic Addressing eere V 57 11 Indoor outdoor control wire connection confirmation V 58 Outdoor Unit Electrical Wiring Diagram unne nennnenenennnnnnnnnnnnnnnnnnnennenven VI 1 1 Outdoor main BEAN aarin aco neo noon een ek na ra ocu Geena kinden VI 2 2 Outdoor power DON reren ennen enden Sedi nU ee ies VI 3 3 Converter board anionen teneerste wanner dorsen dend baaarseneek bedank nannan VI 4 4 Indoor control board for DC motor models nanne nennen nennen VI 5 5 Indoor control board for AC motor models nnee eenen eneeeenn VI 6 6 Outdoor Unit Electrical Wiring Di
176. ontrol board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 65 L04 Duplicate System Outdoor Unit Address Setting Error detection method An error is determined when identical system outdoor unit addresses exist within the same link wiring When system outdoor unit address settings were forgotten during link wiring When system outdoor unit address settings were accidentally duplicated during link wiring Q Troubleshooting Check that unique system addresses are set for each outdoor unit connected to the same link wiring indoor outdoor operating line Correct any duplicate addresses that are found and perform the autoaddressing process e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 66 L05 06 Duplicate Indoor Unit Priority Setting Error detection method An error is determined when multiple indoor units have the operation mode priority setting within the same refrigeration tubing system The indoor unit with the priority setting displays L05 e The indoor units without the priority setting display L06 When multiple units have the operation mod
177. oor control board PMV 6P white CN082 No 5 and No 1 4 Solenoid valve check Is the resistance between solenoid valve connector 6P white No 5 and 1 4 about 46 0 Are indoor coil sensors E1 E2 and E3 detached from their measurement points Determine by displaying the indoor coil temperature on the outdoor unit Is coolant flow volume maintained Is the coolant pump turning IV 89 Indoor unit connected Go to 5 1 Water heat exchanger unit connected Go to 8 1 Clean filter Pl Pl Nn Nn Replace indoor control board Replace valve unit Zz o Replace valve coil Repair gt ES Secure required flow volume lt 9 Check water heat exchanger unit electric valve 10 High pressure sensor 12 Engine 13 Inspect outdoor solenoid valves For 3WAY device Check water heat exchanger unit electric valve Repair Check high pressure sensor Investigate further Replace outdoor main board Bypass valve activating properly wiring and coil unit Engine throttle sticking Adjust outdoor solenoid valves Use trial operation mode to check that the solenoid valves operate normally in each operating mode cooling heating and measure tube temperature around solenoid valves to assess For information on solenoid valve operation in each operating mode see the sections Control functions Operating control in the Outdoor unit manual Does the solenoid v
178. operation complete combustion the engine is shut down and an error flag is set A Coolant Temp High error is assumed when this flag has shut down the engine 5 consecutive times Q Troubleshooting 1 Yes 2 1 Pump 1 1 e the coolant pump rotating during operation rotation SH g op No SeeA22 OOI Are the three way electric coolant valve and the electric cooler three ay valve at the engine outlet operating properly Repair or replace the three way valve Any signs of coolant discharge from the reserve tank c 2 3 1 2 3 Is coolant leaking or seeping from the coolant hose Disconnect the coolant temperature sensor relay connector 2P 12 2 green and measure the resistance value Measure the surface temperature and compare See 5 Reference Document for Replace coolant thermistor characteristics temperature sensor Reinvestigate After resetting the error and operating again measure the surface N temperature of the coolant circuit Does the temperature increase 3 Repair then discharge air 3 Is there air in the coolant cM 3 Is there water etc on relay connector 2P 8 green DA A20 recurs replace the outdoor main board e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 ndoor control board for DC motor models
179. or outdoor operation wiring may not be connected between the indoor unit and outdoor Check wiring connections on indoor outdoor operation wiring e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 52 E26 Inconsistencies in Number of Outdoor Units for only W MULTI Error detection method A Mismatch of Outdoor Unit Count is assumed when the number of outdoor units in the same refrigerant system No 10 first on does not match made setting in a W MULTI system Aunit with an outdoor unit address No 10 First sub of something other than 0 in an outdoor main board is identified as a W MULTI unit Q Troubleshooting EEGEN s the outdoor unit a uni Have the system address outdoor unit address and number of connected outdoor units for the same refrigerant system been properly entered System address No 10 First out Outdoor unit address No 10 First sub Number of connected outdoor units No 10 First on Is the outdoor unit address set to 0 For systems other than W MULTI be sure to set 0 Asystem set to something other than 0 is recognized as W e MULTI ERE Set to 0 Enter the data correctly Is the wiring indoor outdoor operatio
180. or poor power supply wiring between terminal plate NF1 NF2 and power board and 1 3 check for defective components Correct as necessary Turn on the power and check for recurrence Yes Replace power board Was there a recurrence There may have been many instant power failures 1 4 Check power source wiring connections poor contact If no error is found keep under observation e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Reference Electrical Wiring Diagram B F 1 2 IV 78 P09 Indoor Unit Ceiling Panel Connector Connection Failure Not detected with water heat exchanger unit connected Error detection method e Detects when indoor control board connector PNL 3P green CN080 1 and 3 are open and determines an error The wiring method and connectors differ among indoor units For details see the electric wiring diagrams for each indoor unit This input short circuits on the following models when a ceiling panel or front panel connector is connected thus detecting a panel connection Basic circuit Relay connector 8P or 9P PNL green Best lt Short circuit Indoor board i um Short circuit Relay connector 7P Applicable models
181. ority 0 1 Normal Drain pump intermittent control 0 1 Normal Drain pump continuous control 0 1 Normal No cool air prevention control with heater thermostat off 0 1 Normal No air speed control with heater thermostat off 0 1 Normal No heater high pressure avoidance control 0 1 Normal Heater stop indoor frost prevention control 0 1 Normal No refrigerant discharge control with heater thermostat off 0 1 Normal Air speed lower limit with heater thermostat on LL 0 to 8 Cooling indoor fan odor compensation 0 1 Normal Air speed select when dry thermostat off LL gt stop 0 to 120 Heating thermostat on upper limit 0 4 480step 0 to 120 Heating thermostat on lower limit 0 4 480step 0 to 120 Initial heating discharge 0 4 480step 0 to 120 Initial cooling thermostat on 0 4 480step 0 to 120 Heating high pressure avoidance 0 4 480step 0 to 120 Cooling thermostat on lower limit 0 4 480step 0 to 120 Heating thermostat off 0 4 480step 0 to 120 Cooling thermostat off oil recovery 0 4 480step 35 to 92 Cooling discharge temperature 0 depending on model type 35 to 92 C 35 to 92 Heating discharge temperature 0 depending on model type 35 to 92 C Only existing indoor units are shown V 33 2d V Generator setting No 07 Level 0 a 8 This setting is not used n V 34 Forced engine rpm setting No 08 Level 0 lt
182. r properties setting mode Replace outdoor main Is E4 displayed on all remoto controllers for other indoor units board connected to this outdoor unit No Replace indoor control board IV 36 The designation is used in the table to indicate indoor boards for DC and AC motor models There is no TEST pin on the indoor board for AC motor models For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 See instructions packaged with servicing indoor board for procedure on replacing indoor non volatile memory EEPROM and replacing indoor control board See 5 Reference Document for checking remoto controller IV 37 E05 Indoor UnitTransmission Faiure to Outdoor Unit Error detection method When a self transmitted signal cannot be self received an error is determined Indoor water heat exchanger unit control board is defective Outdoor main board terminal resistor switch setting is incorrect Q Troubleshooting Is the indoor outdoor operation wiring connected to multiple Yes 1 2 outdoor units Link wiring No 1 3 Is the S010 terminal resistor switch on one outdoor main board set to ON and the onan to OFF Set only one unit to ON
183. r 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 E18 Group Control Wiring Communication Failure Error detection method When remoto controller group control main unit cannot communicate with sub unit An error is determined when the remoto controller group control sub unit has not communicated with the main unit for 3 minutes An indoor unit within group control is not powered ON Inspection pin CN062 CN07 1 or TEST pin CN064 is short circuited on an indoor unit within group control Indoor unit DISP pin CN063 CN072 is short circuited on a sub indoor unit within group control Remoto controller group wiring is broken Multiple indoor units within group control are set as main An indoor unit within group control is set as independent Troubleshooting 1 Indoor unit 2 Remoto controller group Wiring 1 1 Is the indoor unit power OFF Yes E Is the inspection pin CN062 CNO7 1 or TEST pin CN064 or Eliminate short circuit 1 2 DISP pin CN063 CNO072 on the indoor control board short 2 1 Remoto controller group wiring broken In the remoto controller detailed settings mode check the 2 2 group settings item code 14 Multiple main units 1 or any 2 3 Remoto controller group wiring rout
184. r DC fan error Alternate flashing High compressor discharge temperature Po Refrigerant high pressure switch operation Outdoor unit Water heat exchanger unit anti icing sensor Outdoor protection error for only water heat exchanger unit devices P11 Refrigerant circuit error P13 for only W MULTI and 3WAY MULTI Complete refrigerant gas depletion L e hr Bypass valve error P18 4 way valve lock error P19 Alternate flashing not detected 3WAY MULTI uonesedo eoi ep awe Operating Timer Wait Refrigerant high pressure error Outdoor fan error Water heat exchanger unit interlock error P23 for only water heat exchanger unit Clutch connection error i System Group control s sub unit error system controller Group control error alarm P31 Indoor unit Oil change time level alarm Outdoor display oiL Oil check Automatic backup operation 2 Outdoor unit Backup operating display without power generation when the converter is abnomal When the water heat exchanger unit is connected in the table above please replace indoor unit with water heat exchanger unit for the alarm Note Some items are not indicated depending in model 1 If the indoor nonvolatile memory EEPROM is faulty when the power supply is turned on Alarm code F29 is not indicated but the power source LED on the indoor board starts to flicker 2 In this case operation of the system is possible but one of the outdoor units is de
185. r control board 1 7 Check for poor contact or broken wire in Indoor control board connector DP blue CNO68 1 3 wiring Repair Conduction in drain float switch 1 8 Unplug connector and check N Replace drain float H switch Repair any poor connections broken wires etc in the drain float switch connector and between No 1 and No 3 indoor control board connectors FS red CN034 CNO030 1 10 Check draining of drain hose tubes and repair as necessary clean or replace filter for UH e The designation is used in the table to indicate indoor boards for DC and AC motor models e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 80 P11 Water Heat Exchanger Unit Anti icing Sensor Error for only water heat exchanger unit Error detection method An error is detected as follows When anti freeze temperature is detected and recovery temperature is not reached within 3 minutes Anti freeze temperatures When any one of the following conditions is reached Hot and cold water outlet temperature Less than 2 C Anti freeze temperature Less than 2 C Re
186. r into the new board e Handle the nonvolatile memory with care Because the nonvolatile memory needs to be installed in a certain direction see diagram below be carefulto correctly connect it to the designated sockets Faulty directional installation will cause the memory to break Fit the notched section of the IC socket into the notched semicircle section of the nonvolatile memory Nonvolatile memory IC socket e Because the legs are easily bent be careful when removing or plugging in the memory 3 Turn on the power supply and confirm operation Outdoor Nonvolatile Memory EEPROM Replacement Sequence e When replacing the outdoor main board in the event of nonvolatile memory breakage or F31 error the work of replacing the outdoor nonvolatile memory should be conducted in the following sequence e A nonvolatile memory is also used in the indoor unit but be aware that there is no compatibility between the memories 1 To ensure reproduction of the nonvolatile memory contents before removing the nonvolatile memory make notes of the various judgment values in the parameter setting mode as well as operation monitor data code numbers to 4 6 to 9 and oil change time 2 Install the nonvolatile memory package in the service board in the outdoor main board e Handle the nonvolatile memory with care e Because the nonvolatile memory needs to be installed in a certain direction see diagram below be careful to correctly co
187. r one second TEST WARNING LED light Automatic completion Press the SET S007 key for one second when turning off TEST WARNING LED off Automatic address setting status 1s successively displayed as shown below The meaning of the numbers is as follows 0 Automatic address start setup 1 Indoor unit automatic address setup wait 2 Engine operation in progress 3 Indoor unit checking in progress 4 Address setting in progress 5 Setting complete H R d a HF d t HA d HIA d E HIA d s HA 5 V 44 19 Cooling automatic address setting Level 2 Rejection conditions Not accepted during indoor operation Setting start operation method Press the SET S007 key for one second TEST WARNING LED light Setting change operation method Automatic completion Press the SET S007 key for one second when turning off TEST WARNING LED off Automatic address setting status is successively displayed as shown below The meaning of the numbers is as follows 0 Automatic address start setup L R d D 1 Indoor unit automatic address setup wait LAld 2 Engine operation in progress LR d 3 Indoor unit checking in progress LAld 3 4 Address setting in progress LR 4 5 Setting complete L Rid 5 V 45 Date Display No 11 Level 0 nia t lz Display of the current date Key operation is used to disp
188. re the resistance between one end of the indoor outdoor control Ground fault check 4 wire and the point of ground screw as well as the resistance between the other operating line end and the point of ground screw Are both measured resistance values in MO unit infinite 4 2 Because the indoor outdoor control wire has a ground fault search for the location of the ground fault 2 Measure the resistance between the indoor outdoor control wires on the 1 Short circuit check terminal board of the outdoor unit The measured resistance value is around 75 to 1000 When setting multiple ON SHORT to switches with terminal resistor the No 2 2 resistance value mentioned above is 1 over number of units 1 2 outdoor control wire If it is open check the terminal resistor of outdoor board and check the wiring from outdoor board to outdoor terminal board 3 Measure the resistance between the indoor outdoor control wires on the Wire break or 1 boards of all devices that are connected to the control wires Oo 1 2 If the wiring has a short circuit search for the location of the short circuit on the indoor 2 3 disconnection check Any location with measured resistance values in MQ units infinite Because the wiring has a break search for the location of the break 4 Yes 4 2 Shield wire check A shield wire is used as an indoor outdoor control wire Yes 4 2 wl Yes 5 1 Only one end of the shield wire is grounded
189. rical Wiring Diagram page VI 7 e 1 2 1 2 See Chapter 5 for timing adjustment A27 Catalyst Temperature Error for only models with catalyst option Error detection method e When a catalyst temperature exceeding 700 C is detected continuously for 10 seconds during engine operation the engine is stopped and an error flag is set A Catalyst Temp Trouble is assumed when this flag has shut down the engine 5 consecutive times in 1 hour Yes 1 2 No Repair wiring OK 1 Thermistor operating properly OK Replace thermistor Q Troubleshooting 1 Unit error 1 1 Check the wiring and connectors Everything OK 2 Replace outdoor Yes main board Inspect ignition timing Everything OK e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e 1 2 Thermistor resistor values 100 C 96 0KQ 200 C 13 5KQ 300 C 33KO0 400 C 1 15KQ 500 C 5140 600 C 2680 650 C 1980 700 C 1510 750 C 1220 800 C 980 e 1 3 See Chapter 5 for timing adjustment A28 Generator Error for only G POWER W MULTI Error detection method Generator Error is assumed when an error occurs in
190. ross indoor outdoor operation wire circuit Did the number of indoor units change after autoaddressing Yes 3 2 Or was the indoor unit count setting changed on the outdoor main board No 4 1 Perform pre check before auto addressing See 5 Reference Document 4 1 IS the inspection pin CNO62 CNO71 or TEST pin CNO64 on aA STINET MIN the indoor control board short circuited No 4 2 Is an option board CNO60 or wireless remoto controller 3 Indoor unit count i CNO41 connected to the indoor control board Does E15 disappear several minutes after disconnecting said connector on the indoor control board When controlling with two remoto controllers and the wireless remoto controller is the main set the other remoto controller as the main No 4 5 Replace the removed option board or wireless remoto controller operating unit wiring and all 4 5 Is the LED blinking on the indoor control board 4 Nonvolatile memory EEPROM on the outdoor main unit is not inserted is incorrectly inserted 6 or is defective gt Correct or replace nonvolatile memory and program it in the remoto controller properties setting mode main indoor unit connection status using No 9 indoor unit check and investigate the unaccounted T On the outdoor main board use setting No 10 to set the indoor unit count Then compare the 5 1 board indoor unit in detail e The designation is used in the table to indicate indoor boards for
191. so O HOME ie HOME poss 3 Press the SET key S007 The LEVEL LED D053 and TEST WARNING LED D052 will light and the status with the engine rotating at the forced set speed will be displayed at one second intervals as shown below amp 5 5 15 85 0 Compressor outlet temperature Example 85 0 C 4 Press the SET key S007 for one second or more The TEST WARNING LED D052 will go out and the forced rotational speed setting mode will be canceled ru un 5 Press the HOME key S004 for one second or more D on Menu item number n a D right figure will be j j displayed mt il LI LI D052 UP DOWN sET ore S006 5007 O O Q 5004 HOME E 6 Press the UP S005 or DOWN S006 key and select menu item number n H The display EES k figure below will appear SES E SILILI D052 DOWN sET ore S006 5007 O o S004 HOME g V 53 7 Press the SET key S007 a a L right figure will be displayed The LEVEL LED D053 and TEST WARNING LED D052 will light 8 Press the UP S005 or DOWN S006 key to display E amp FR r right figure Press the SET key S007 for one second or more The TEST WARNING LED D052 will go out and distributor mode will be can
192. sor outlet temperature C Outdoor heat exchanger inlet 1 temperature C Outdoor heat exchanger inlet 2 temperature C Outdoor heat exchanger outlet temperature C Coolant temperature C Outside air temperature C Clutch 1 coil temperature C Catalyzer temperature C Hot water outlet temperature C Oil surface measured temperature C Clutch 2 coil temperature C Clutch 3 coil temperature C Starter electric current A Exhaust gas temperature C Throttle step Fuel gas adjustment valve output step Liquid valve step V 18 ji S gt Nn Kel O Kai O NO E TIF m n ni S e lloll Ales II Al o Nj Jl S lellellel w elle ollellellsile elle Affen ele Ell El E oee oo Un oO bd Kd ff vella ole WIT ojjloilojoj o eje EIE BRR TRARY O21 02 Oo Oo Go Wallis les ess ess eese e S ale ES fool a A oo Ayn Ur 2 Ell Wl Ell Es c c s dH dH e e Kf KON Keke e e E i LA E oo N Before 5 Bypass valve step Outdoor electric valve 1 step Outdoor electric valve 2 step Coolant 3 way electric valve step Electric cooler valve step Hot water dispensing 3 way electric valve step Rotation speed variable value F_rpm Engine ignition timing degree Thermostat on units Thermostat on average intake temperature Thermostat on average discharge temperature Thermostat on averag
193. ssor Inlet Outlet Pressure Sensor Error Error detection method When pressure in the following chart is detected Detect Open Detect Short Circuit 0 5MPa 5 5MPa OV 4 9V Q Troubleshooting 1 Check Install gauge on large tube and small tube service port and Yes Operate again pressure open valve see 1 below for procedure to equalize pressure sensor within refrigeration circuit Gauge display nearly identical to outdoor main board display No 2 1 ON wiring Is there a DC 5V voltage between the following terminals of the 2 1 outdoor main board connector 6P red CN049 Repl td No 1 and No 3 and No 4 and No 6 Is the voltage between the following terminals of the outdoor Replace outdoor main 2 2 main board connector 6P red CN049 appropriate for the board pressure No 2 and No 3 and No 5 and No 6 No 2 3 Wiring connection contact poor or wire broken between 2 3 outdoor main board connector 6P red CN049 and compressor Repl inlet outlet pressure sensors e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Perform from out
194. st to the highest rpm in that machine s control status measured in 100 rpm units Moves to clutch engaged rpm during clutch work conducting clutch engaged operation To protect the compressor if the compressor inlet pressure is below 0 05MPa setting rotation s upper limit is set to 1400min V 35 amp Indoor Unit Status Display No 9 Level 0 lt n a D Displays of connected indoor unit status Also possible to activate forced thermostat off settings for specific indoor units D 1 Indoor unit status display Level 0 Shows menu selected indoor unit status display dal SEIS 2 Indoor unit thermostat status display Level 1 In the indoor unit display mode pressing the SET S007 key displays the indoor unit thermostat status Example No 1 24 units connected Note 1 dot at lower right Lit Thermostat on unit Flashing sec cycle flashing indicates thermostat off unit numbers e 0 5 sec cycle flashing indicates forced thermostat off status unit numbers Display examples No 1 to 32 units connected Note 1 dot at lower right 1 to 12 units from upper left to upper right of vertical line 13 to 24 units from lower left to lower right of vertical line 25 to 30 units from top left to top right of horizontal line 31 units 32 units from bottom left horizontal line Operate the UP S005 and DOWN S006 keys 37 N 38 39 N aal La N 42 43 Les een Es COO
195. t Float Switch Operation Not detected with water heat exchanger unit connected Error detection method e Detects when indoor control board connector FS red CN034 CN030 1 3 are open and determines an error The sensor connected between No 1 and No 3 of connector FS red CN034 CN030 is normally a drain float switch However some models do not have a drain float switch These models have No 1 and No 3 of connector FS red CN034 CN030 short circuited with a wire The drain float switch turns the contact OFF when the drain water overflows and the contact turns ON when the water level falls The connection method and protective devices differ among indoor units For details see the electric circuit diagrams for each indoor unit Models with built in drain float switch SR7 12 16 18 25 36 48 60 LDR9 12 16 18 25 DR25 36 48 76 96 UR7 9 12 16 18 25 30 36 48 60 XDR7 9 12 16 18 25 36 48 60 XM7 9 12 16 18 ADR7 9 12 US7 9 12 16 18 e Models shipped with connector FS red CN034 CN030 No 1 and No 3 short circuited with a wire Models not listed above Q Troubleshooting 1 a Model with drain float switch built in Check for poor contact or broken wire in Indoor control board el red CNO34 CN030 1 3 wiring connector Repair et 1 3 Drain water overflowed no Ju a Replace drain pump Is AC200V applied to drain pump geg Is AC200V applied across indoor control board connector DP blue CNO68 No No 3 No Replace indoo
196. t LED display e There are 6 startup conditions Some conditions start the engine automatically after a specified time period while others cause it to stop with a warning e Display Method The startup conditions see table below light at engine start up No 0 normal display only e Startup Conditions Displayed in Engine Start Standby Mode Start condition SH SE Condition Display Code Refrigerant pressure equalization between high P 2 5 Pressure equalizing display max 2 min and low pressure areas Waiting for the temperature to drop to below 115 C If the el ar outlet Pag temperature does not go down within 10 minutes the engine is p malfunction error Waiting for the compressor inlet pressure to exceed 0 1 MPa Completely run out of gas If the pressure is not restored within 10 minutes the engine is malfunction error 145 Waiting for the temperature to drop to below 80 C If the temperature does not go down within 10 minutes the engine is T Coolant temperature d malfunction error a If the coolant level is not restored within 3 minutes the engine is malfunction error Waiting for the coolant pump to exceed a minimum 1 of 2500 rpm If Coolant level not restored within 3 minutes the engine is malfunction error P Coolant circuit R If the engine oil level is not restored within 60 minutes the engine Engine oil level m is forced to shut down No condenser 3WAY ETE Waiting for 3WAY solenoid v
197. t in the fan etc For a three phase motor check for missing phase 1 4 Replace indoor control Operate again to check activation Immediate error upon board operation No 1 3 1 5 Poor connection or broken wires in communication lines No Replace indoor control board For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 See instructions packaged with servicing indoor control board for procedure on replacing indoor control board IV 74 P03 High Compressor Discharge Temperature Error detection method When the compressor discharge temperature gt 130 C during engine operation complete combustion the engine is stopped and an error flag is set A Compressor Discharge Temp High fault is assumed when this flag has shut down the engine 5 consecutive times Revolution speed setting gt minimum revolution speed is not included in pre trip e Not included in pre trip when liquid valve opening lt 400 step Q Troubleshooting 1 7 2 Out of gas 2 1 3 Tubin 9 3 1 Disconnect compressor outlet temperature sensor connector 2P red CN054 and measure resistance Appropriate value See 5 Reference Document for thermistor characteristics Replace sensor
198. t or broken wires in remoto controller wiring 1 white and 2 black with indoor unit connected Q Troubleshooting Any and b or broken wires in remoto controller wiring 1 white and 2 blacky Replace indoor control board e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board E15 Automatic Address Alarm Too Few Units Error detection method An error is determined when the indoor unit count responding to transmission is less than the indoor unit count set on the outdoor unit Also detected apart from auto addressing The actual number of indoor units is less than the number of indoor units set on the outdoor unit Connected indoor unit power is OFF e An indoor unit has a short circuited inspection pin CN062 CN071 or TEST pin CN064 upon power ON High voltage AC200V etc was applied across indoor outdoor operation wire circuit Q Troubleshooting 1 Turn power ON Power 1 1 Is the indoor unit power OFF Indoor 24 Indoor outdoor operation wiring broken or short circuited outdoor See 5 Reference Document operation 2 2 High voltage AC200V etc applied ac
199. t tubing Indoor branch tubing Refrigerant tubing main tubing a D E a 2 E E E D a 2 B Fe E D o e E t Balance tube 2 W MULTI W MULTI 3WAY MULTI outdoor unit aa unit outdoor unit 1 1 Indoor outdoor control wire Fig 1 GHP System Configuration Example 1 Refrigerant tube Figure 1 is a simplified diagram Actually two refrigerant tubes consisting of a gas tube thick tube and a liquid tube thin tube are used Each W Multi outdoor unit is connected to an outdoor branch tube and then connected to the main tube For the indoor unit the refrigerant tubes branched from the main tube are connected to the gas tube and liquid tube of each indoor unit 2 Balance tube The W Multi outdoor unit is connected to the refrigerant gas tube and liquid tube as well as the balance tube The balance tube is required so as to keep the balance of the refrigerant and cooling oil between outdoor units connected to the same refrigerant system When a certain outdoor unit is cut off from the system it is necessary that valve of the balance tube is closed together with the refrigerant gas tube and liquid tube 2 About backup operation during maintenance work e What is backup operation In the W MULTI series multiple outdoor units are connected to the same refrigerant tube as shown in Figure 1 Therefore even during maintenance work of an outdoor unit the other outdoor unit not required in maintenance work
200. t up or upon turning the outdoor unit power ON Indoor unit address is not properly assigned Indoor unit power is OFF Q Troubleshooting 1 1 Indoor unit address properly assigned ves Set address Is the indoor unit power ON Turn power ON 1 3 The indoor outdoor control wire may not be connected between the indoor unit and outdoor unit Check wiring connections on indoor outdoor control wire e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 E21 Outdoor Main Board Error Error detection method External noise may interfere with microprocessor operation Troubleshooting 1 This may occur directly after resetting other faults perform the reset on the outdoor main board E Jet This is possibly caused by random noise turn off the outdoor power supply Then turn it back on board 1 2 and keep it under observation BE fault recurs replace the outdoor main board and outdoor power board Noise countermeasures Is a noise source near the outdoor unit Replace the outdoor main board and outdoor power board For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor
201. tected to have stopped abnormally e Alarm P30 group controlled device fault is sometimes displayed at the system controller 4 Error Display and Troubleshooting The description of each error display begins on a new page Descriptions of some troubleshooting procedures span several pages When you refer to an error display be sure to first check whether the description of the troubleshooting procedure spans several pages 1 Precautions before Troubleshooting In order to ensure correct diagnosis and prevent accidents electric shock equipment malfunction measuring instrument damage etc be sure to observe the following precautions O Be sure to use a digital tester for voltage measurement Avoid using a tester with an indicator needle to prevent large measurement errors or operation failure Q Unless otherwise specified perform voltage measurement with the terminal terminal plate and connector connected In some cases measurement is also performed with the terminal disconnected Perform continuity measurement resistance measurement after disconnecting the terminals on both ends Performing continuity measurement while the terminals are connected will cause a short circuit or damage to the tester If instructed to disconnect wires before performing continuity or voltage measurement be sure to do so then reconnect the wires before proceeding to the next step item G Be sure to turn off the power before connecting or disconne
202. ter board VI 4 ndoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 6 A05 Ignition Source Error Error detection method When the starter power output meets the following conditions an error is detected upon 5 consecutive occurrences in one hour When an ignition voltage decrease is detected for 2 5 seconds or more During cranking when I lt 3 8A is detected for 4 seconds with no revolution pulse Note The starter power source magnet switch 52S operation is as follows When power is turned on 52S turns ON upon operation signal input If no abnormalities occur thereafter A15 A16 A17 this stays ON and turns OFF upon stop signal input Turns OFF when error occurs Q Troubleshooting Try operating the outdoor unit When the starter power source magnet switch 52S does not turn ON Go to 1 1 e When the starter power source magnet switch 52S turns ON and then turns OFF after 3 seconds Go to 2 1 e When the starter power source magnet switch 52S turns ON but the starter does not turn ON Go to 4 1 P Y Replace magnet At magnet switch ON timing is there AC200V between magnet switch switch A1 and A2 At magnet switch ON timing is there AC200V between power board connector 3P yellow CNO28 No 1 and No 3 1 3 Wiring connection contact poor between power board connector 3P red CN028 and mag
203. ter error for only G POWER W MULTI Low fuel gas pressure error System E Communication system errors Remote controller receive failure Remote controller transmission failure Indoor unit receive failure from remote controller central Indoor unit receive failure from outdoor unit Indoor unit transmission failure to outdoor unit Outdoor unit receive failure from indoor unit Outdoor unit transmission failure to indoor unit Duplicate indoor unit address setting Multiple main remote controller units set Indoor unit receive failure from signal output board Automatic address setting is in progress automatic address setting start is prohibited Indoor unit transmission failure to remote controller Automatic address alarm too few units Automatic address alarm too many units Group control wiring communication failure No indoor unit in automatic address setting Outdoor main board error Outdoor main board sensor error Communication failure between outdoor units for only W MULTI Inconsistencies in number of outdoor units for only W MULTI Incorrect outdoor unit tube connection for only W MULTI Communication failure between units V 20 Error alarm contents System F Failure of sensor memory and other parts Indoor heat exchanger inlet temperature sensor error Water heat exchanger unit anti icing sensor error Indoor heat exchanger outlet temerature sensor error Compressor outlet tempera
204. the coolant pump Press again to stop the pump and turn off the key light Displays Pump 1 Hoses and connections 2 Flange connections 3 Threaded connections 4 Tubing welds 2 2 Collect oil from oil pan Emulsification Mixed No emulsification Not mixed 3 1 With float switch ON DCOV With float switch OFF DC5V A22 Coolant Pump Error Error detection method When the coolant pump rotation and drive meet the following conditions an error is determined on the first occurrence When coolant pump rotation is not detected upon startup When coolant pump rotation does not increase When coolant pump rotation is too high When overcurrent is detected in the coolant pump circuit Q Troubleshooting 1 Any coolant pump locking broken wires poor contact or short v Replace coolant D D es Coolant 1 1 circuits pump pump coil resistance should be around 14 180 for each phase e Replace power board and keep under observation If A22 reoccurs replace coolant pump For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Reference Electrical Wiring Diagram A B 3 A23 Crankshaft Angle Sensor Error A24 Camshaft Angle Sensor Error Error detectio
205. ther of the two wires from the starter power source Y Repair replace Starter 2 1 terminal to the starter short circuited ground faulted PS wiring or misrouted No Replace starter e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 A16 Starter Lock Error detection method During cranking a Starter Locked error is assumed when any of the following conditions occur 5 times in 1 hour the starter power primary current meets the following condition no revolution pulse is detected no input from the crank angle sensor no input from the cam angle sensor When 32A or more is detected for 1 0 second or more Q Troubleshooting 1 Check starter 1 14 Check for starter lock If there is no starter lock includes engine and compressor replace the Starter outdoor main board e For work procedure for replacing outdoor main board see 5 Reference Document 2 Temporarily remove the compressor drive belt and check the following rotating parts for locking See Periodic Inspection and Parts Replacement Manual for installing and removing compressor drive belt Compressor 2 1 Rotates by hand with some resistance compressor 3 Temporarily remove ignition plugs from all cylinders Engine 3 1 Can the engine crank be rotated To rotate the crankshaft follow the procedure in the Periodic Inspection and Parts Replacement Manual R
206. too much load on the air conditioner During demand control because the unit operates at below the set fuel gas flow control value cooling may be slightly bad heating may be slightly bad Inspect oil flashes on the remote controller When the operating hours for the gas engine reach a designated time Inspect oil flashes Change the engine oil If the engine oil is not changed within 200 operating hours after flashing warning A02 will be displayed and operation will stop 2 Before troubleshooting W MULTI series 1 W MULTI series system overview W MULTI series is a system that can join up to two outdoor units to the same refrigerant tube and control each outdoor unit while performing air conditioning according to the operation load of the indoor unit Figure gives an overview of the system In the example the W MULTI series refrigerant system 1 connecting to two outdoor units and 3WAY MULTI refrigerant system 2 are linkwired by using an operation cable for the indoor outdoor units This is an example of a dual system consisting of two refrigerant systems Refrigerant System 1 Refrigerant System 2 Indoor outdoor control wire Indoor outdoor control wire Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit 1 1 1 2 1 48 2 1 2 2 Remote controller Remote controller Remote controller Remote controller Refrigerant Indoor branch see tubing Refrigerant tubing Outdoor branch tubing 1 Refrigeran
207. tor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 33 E03 Indoor Unit Receive Failure from Remote Controller Central Error detection method 1 With indoor unit connected An error is determined when no transmission is received from the remote controller central for 3 minutes or when no transmission is received from the central equipment for 15 minutes When transmission had been normal but the remoto controller wiring became broken or misrouted Broken indoor and outdoor operating wiring to central control equipment Only sub remoto controller is set Noremoto controller with central control equipment power OFF Noremoto controller and only sub remoto controller is set Q Troubleshooting Central control Is central control equipment connected 2 1 o equipment Turn power ON 1 2 ls the central control equipment power OFF 13 o 4 3 Are all the central control main sub switches on the connected central control equipment set to sub Of the connected central control equipment set only the highest ranking central control 1 4 unit to main and set the remaining units to sub Ranking order from high to low AMY adapter intelligent controller system controller multi controller Are any broken indoor and
208. ture sensor error Outdoor heat exchanger inlet temperature sensor error Outside air temperature sensor error Indoor unit intake temperature sensor error Indoor unit discharge temperature sensor error Compressor inlet temperature sensor error Coolant temperature sensor error Compressor inlet outlet pressure sensor error Hot water outlet temperature sensor error for only models that discharge hot water Exhaust gas temperature sensor error Clutch coil temperature sensor error Clutch 2 coil temperature sensor error Indoor nonvolatile memory EEPROM error Real time clock RTC function Outdoor nonvolatile memory EEPROM error System L Duplicate address and other setting defects Inconsistencies in indoor outdoor unit models non GHP equipment connected Multiple main units set for group control Duplicate system outdoor unit address setting Duplicate indoor unit priority setting priority indoor unit Duplicate indoor unit priority setting excluding priority indoor unit Group control wire present for individual control indoor unit Indoor unit address not set Indoor unit capacity not set Outdoor unit capacity not set Indoor unit model setting failure Gas type setting failure System P Indoor outdoor protective device operation Indoor fan error indoor fan rpm error High compressor discharge temperature Refrigerant high pressure switch operation Power source error Indoor unit ceiling panel conn
209. ual count of connected indoor units Correct the setting Are the indoor outdoor control wires connected to multiple 3 2 outdoor units Nr nec Is S010 terminal resistor ON OFF switch on the outdoor 3 3 main board set to ON for only one outdoor unit and set to OFF for all other outdoor units 1 No Correct the setting 3 4 Are there any duplicate settings for outdoor units ba jro nere om cuneate stings trea Mesa 3 5 For link wiring set a system address for each outdoor unit in the order of 1 2 3 and then perform automatic addressing Perform automatic addressing Terminal resistor is basically ON SHORT for one unit only but depending on the installation status can be set to ON SHORT for up to 3 units 2 3 Backup connectors and terminals for indoor outdoor control wires for communication Outdoor Unit CN045 for communication CNO046 EMG CNO40 0C CNO44 EMG For a system linking wiring systems if the systems are connected to water heat exchange unit depending on the state of the hot cold water automatic address alarm may occur If this happens remove the link wiring and set address individually V 57 11 Indoor outdoor control wire connection confirmation Check the control wire connection regardless of whether there is a warning or not Before performing the check turn off the power of all devices including controllers that are connected to the indoor outdoor control wire 1 Measu
210. ure 400KQ or more Gasthan 1300 Outside air temperature sensor 400kQ or more Less than 1300 Note 1 Detects broken wire for compressor outlet temperature sensor When pressure is more than 1 0 MPa and compressor outlet temperature is less than 6 C continuously for 3 minutes during complete combustion Note 2 Detects broken wire for exhaust temperature sensor When the coolant temperature gt 80 C the exhaust gas temperature lt 30 C and exhaust gas temperature does not change for 5 minutes during complete combustion Q Troubleshooting Check 1 1 Is the sensor correctly installed at the prescribed location S ES Check wiring 2 4 Poor connection contact crimping or broken wire or pinched wire in sensor connector and wiring temperature value power board sensor Is the resistance between the broken wire detection value and the short circuit detection value Replace temperature sensor e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Replace the outdoor Check Disconnect the sensor connector and measure the resistance Yes main board or outdoor IV 56 F16 Compre
211. ure sensor wiring OK compressor of leaks CES Unclog tubing Is the tubing clogged Charge gas C Repair leak and charge Are there any other places with leakage gas No Replace compressor e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 e 1 1 Use outdoor main board menu item No 04 to open valve using trial operation forced settings Press the SET key the LED lights as the valve opens Press the key again to turn off the TEST WARNING LED and close the valve Je RU ey SE boo S004 HOME E e 2 1 0 5 0MPa e di Pressure sensor 0 574 5V E 3P 3 Black Outdoor main board PS1 6P Red CN049 IV 86 P18 Bypass Valve Error Error detection method e A warning is output if it is determined that the outdoor unit needs a bypass valve inspection n practical terms what happens is that each time there is a small difference 7 1 P lt 0 1 MPa between the high and low pressure 4 P high pressure low pressure 90 seconds after stopping the engine stops a suspected error counter increments and the data is recorded as pre trip warning history data After the counter reaches 5 a warning is output on the next complete combustion startup Q Un
212. utdoor unit Remote controller Indoor unit VN Outdoor unit nde unit IndoONunit Remote controller No remote controller Group control Indoor unit Indoor unit Indoor unit No remote controller Group control Figure 7 Remote controller V 65 6 Loop wiring is prohibited Figure 8 Example As shown in the figure do not have wiring where part of it is looped or the entire wiring is looped Outdoor unit Outdoor unit Indoor unit Indoor unit Indoor unit Remote controller Controller Indoor unit Indoor unit Remote controller Indoor unit Outdoor unit Note indicates the Indoor unit Indoor unit looped portion indoor unit Indoor unit No remote controller Remote controller Group control Indoor unit Figure 8 7 Daisy chain system Figure 9 Outdoor unit Controller Indoor unit Indoor unit Indoor unit Figure 9 Remote controller V 66 6 Outdoor Unit Electrical Wiring Diagram lt Reading the board and wiring diagram gt Example When referring to Electrical wiring diagram A 3 look at the area around the frame in the following diagram A 3 Flecirical
213. utes If no oil seems to be supplied perform Forced compressor oil supply and check 5 6 Check 6 operation Check the temperature of the solenoid valve unit at location 3 C in Figure 1 of outdoor units where Forced compressor oil replenish was set Does the temperature rise reper ae solenoid Cancel the STOP switch setting and STOP where first set to force start all outdoor units Cancel d the Forced compressor oil supply and Forced compressor oil replenish for all outdoor units e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Note The solenoid valve coils and the vicinity can become very hot so check operations should be performed with care e 1 4 1 5 e 2223 O RR oil recovery valve BALV balance valve FLSV flushing valve li d Ki C Fig 1 Solenoid Valve Unit IV 63 L02 Inconsistencise in Indoor Outdoor Unit Models non GHP equipment connected Error detection method Anerror is detected when indoor units other than GHP models are connected e An error is detected when package type L series indoor units and building multi outdoor units are connected Q Troubleshooting 1 Check the following and remove or replace all non GH
214. verter e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Indoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 IV 30 A30 Low Fuel Gas Pressure Error Error detection method An error is determined when the fuel gas supply pressure is less than the setting value during fuel gas valve operation open continuously for 3 seconds e Pressure setting P 0 4KPa gas low pressure switch contact ON Q Troubleshooting 1 Check gas pres Check gas 4 4 Check fuel gas supply pressure Yes Sie a tubing supply pressure Is the supply pressure low T m ET Oo When the gas supply pressure is proper disconnect 3P ves 4 3 green CN040 on the control board and check conduc Ge tion of the gas low pressure switch No 1 4 Conducting Check for short circuiting or pinching of fuel gas low Yes Repair replace 4 3 Pressure switch wiring wiring Any short circuited wiring from board to fuel gas low No Replace gas low pressure switch pressure switch 1 4 If the supply pressure is normal and A30 occurs replace the control board e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 I
215. visable to check the wiring connection on a segment by segment basis starting with the segment between the outdoor unit and indoor unit 1 then the segment between the indoor units 1 and 2 and so on This allows you to find the location of the connection failure between units For W MULTI units es check the wire between the outdoor unit with the smallest address and indoor unit 1 Then check the wires between 2 3 and so on in order I I I I I First check the indoor outdoor control wire between the outdoor unit and indoor unit 1 i i I I I I Unit 3 Then check the indoor outdoor control wire between 2 3 and so on in order Ifthe device contains control wire branched from indoor outdoor control wire there may be failure in the indoor outdoor control wire before branches For W MULTI units I I i Outdoor i Unit H l Unit Unit Unit Unit l 1 Li I I 1 Branch wire i I I I I 1 l i Ground faults or short circuits can also occur in the wiring before branches i For units other than W MULTI Outdoor Unit Ground faults or short circuits can also occur in the indoor outdoor control wiring before branches Indoor Indoor Indoor Branch indoor outdoor control wire V 59 e If communication error occurs check the sensor s ground fault e Check sensors thermistor ground fault Before checking turn off the device and remove target sensor from the board before performin
216. w level and the engine is off Troubleshooting 1 Sub oil pan Proper oil level 2 Communication Pinched clogged trapped communication hose or hose Equalizer equalizer hose hose 3 Operating properly Remove float switch OLSL Oil level low float and check conduction when raising and lowering on switch OLSL tester Oil level low when float is down conducting 4 Check wiring Any broken wires or poor connections between the outdoor main board connector 4P black CN029 No Repl td e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 ndoor control board for AC motor models page VI 6 Outdoor Unit Electrical Wiring Diagram page VI 7 Reference Electrical Wiring Diagram C D 6 e 1 1 Oil tank top view Storage side Tank side IV 15 A12 Throttle Step Motor Error Error detection method When performing forced self diagnosis mode 2 in the self diagnosis mode when the throttle is not operating properly the engine is stopped and an error flag is set When the reason for engine shutdown is this error flag occurring one time e An error is determined when during engine complete combustion the set revolution speed and actual revolution speed differ wi
217. y second Main microcomputer version DC microcomputer version Option version Other displays During a simultaneous long press of the SET S007 key and UP S005 key the following display appears every 1 second Communication collision rate one SC i ae CoiunE This is only an item name collision rate and usage rate and usage rate item names Value LL Liz Communication collision rate 7 communication usage rate 12 Items other than those described above may appear on this display but they are not related to this model Caution 7 Menu Display Press the UP S005 or DOWN S006 key to select menu items During and after item changes the menu number display appears for about 1 second 0 7 seconds followed by the letter display Selecting an item and then pressing the SET S007 key selects that item The HOME S004 key always displays oi ol DD contents will not change during setting When no operations occur for 10 minutes in areas other than item n aH displayed contents will not change during setting item oiol ot a will be cae a oa 3 alala nin Hji rt Lt n Pale loi QR val t lr Initial setting V 10 Operati

TROUBLESHOOTING

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