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Panasonic U-72MF1U9E Service Manual

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1. e Invalidating Program Timer If you want to adjourn the program operation for more than 1 week you can invalidate all the timer settings Once the timer settings are invalidated the program will not be operated until the invalidation is cancelled lt lt How to invalidate the program timer gt gt Press and hold EI for more than 2 seconds J is displayed and the programs will be invalidated from the next one lt lt How to cancel the program timer invalidation gt gt Press and hold a for more than 2 seconds TIMER OFF dere er the programs will be validated from the next one If Power Failure Occurred If the power recovers in a short time period the program after the recovered time will be valid If the power recovered more than 1 hour after the failure the present time information will be lost In this case the program will not be operated Remote Control Functions 3 Timer Remote Controller Duplicating the Program Timer You can duplicate the preset program by day Select the copy source 1 If is pressed in program checking mode 7 it enters the copy mode Selecting the copy source I of the pro gram timer While in the copy mode of the program timer and w day of the copy source flash on the display 2 Press a v to select the day of the copy source Select
2. OFF OFF OFF Meaning of colon 1 6 16 bl bl j 14 JE 19 z j 2 gt RD 12 gt 17 gt D g D g O D r D g O Av 5 Av 10 Av 15 Aa v20 21 40 141 60 161 80 ON ON ON ON 1 2 Display of unit Nos 21 40 OFF OFF OFF OFF D l 26 f D l 36 l JE p PA 29 EX 34 38829 g i d o D D 5 a 5 m nav Vo amv V0 21 40 41 60 61 80 ON ON ON ON 3 The meaning of the colon changes in the same way to indicate unit Nos up to 80 4 Sample displays of connected indoor unit Nos Display of unit No 1 D an da ea da e Display of unit Nos 1 and 2 D UR a Ga da e Display of unit Nos 1 2 and 3 D ED Lm ER 2 lt A Display of unit Nos 1 2 3 and 4 p a LR aA aD The change of the colon display between unit Nos 1 20 to unit Nos 21 40 occurs automatically every 10 seconds However the display does not change if there are no higher number units connected To change the display to the higher number units before 10 seconds have passed press the FLAP button HM An 8 digit display is used for display of the compressor total operating time in 1 hour units When the first 4 digits are displayed the bottom dot of the colon is illuminated Figure A When the last 4 digits are displayed the colon dot is OFF Figure B The display of the first 4 digits and last 4 digits changes automatically after 10 seconds The display can also be
3. Press and hold the and the timer operation 4 buttons for 4 seconds or longer Press and hold the and the timer operation v buttons for 4 seconds or longer COPY D MRF Press the button Automatic reset Press the button Remote Control Functions Current operation is maintained When settings are made from a remote controller the indoor unit where that remote controller is connected stops Entire system stops 3 Timer Remote Controller Test Run Function Operates the unit with the thermostat forced ON lt Procedure gt Press and hold the button for 4 seconds or longer 2 Test appears on the remote controller LCD display 3 Start operation 4 Press the button to return to normal remote controller display COPY O mam E SETE t prora C Remote Control Functions Remote Control Functions 3 Timer Remote Controller E Sensor Temperature Display Function Sensor Temperature Diaplay displayed regardless of whether unit is operating or stopped The procedure below displays the sensor tempera tures from the remote controller indoor unit and out door unit on the remote controller lt Procedure gt 3 Press and hold the and buttons simultaneously for 4 seconds or longer 2 The unit No x x main unit No item code XX sensor address and servicing monitor mr Xx sensor temperature are displayed
4. 20 F 20F 49F 6 F 0010 0001 0002 0003 Temperature shift for cooling heating change in Auto Heat Cool mode 14 F 64 F Lower limit at time of shipping 66 F 0007 0018 0019 IZ T Upper limit i oo Lower limit 0029 0030 0016 0017 84 F 86 F Upper limit at time of shipping 60 F Lower limit at time of shipping 62 F Upper limit 0029 0030 0018 0019 84 F 86 F Upper limit at time of shipping Change to remote control temperature setting range 64 F Lower limit at time of shipping 66 F Upper limit rd L 0029 84 F 0030 86 F Upper limit at time of shipping 0017 62 F Lower limit at time of shipping 0018 64 F Lower limit l i i Upper limit 0026 78 F 0027 80 F Upper limit at time of shipping 0000 Humidifier operation 0001 Ignore heat exchanger temperature conditions a Filter CN70 input 0000 Filter input differential pressure switch input Lower limit Normal switching 0001 Alarm input for trouble input about air cleaner or similar device 0002 Humidifier input Operates linked with drain pump when humidifier is ON Indoor unit electronic 0000 Present Setting at time of shipping 0002 None Remote Control Functions 3 Timer Remote Controller Item Setting data 0000 Normal Used as optional relay PCB or JEMA standard HA terminal jai 0000 Ventilation fan operation 0001 Ventilation f
5. Check the continuity of the CT circuit Install a normal CT in place of this CT and check If current is detected then the PCB can be judged OK CT circuit failure Check that current is flowing in the phase where the CT circuit is connected Check voltage and current 3 Missing power phase Trouble This alarm primarily occurs when the T phase is missing When the R phase or S phase is missing CT trouble or PCB continuity trouble occur However this may not be true in case of missing phase caused by magnet SW trouble Check There is the possibility of a magnet SW failure Therefore check the phase voltage at a location that is as close to the compressor as possible 4 Low power voltage Trouble In most cases this occurs when another constant speed compressor including compressors in other units or other device starts It also occurs when the power wiring is extremely long Check Check the voltage between each of the phases However if this trouble occurs when other devices or compressors start then an oscilloscope is required 5 PCB failure Trouble Check Check that the current value measured with the clamp meter is not lower than the value measured with the PC or remote controller 6 If the cause is still unknown after checking the above then it is possible that noise is the cause of the trouble If is necessary to connect a PC or other instrument Correction 1 Replace the compressor 2 Replace the CT cir
6. ooo a i BQ AND NO OF 0 0 A wT dk ca C190 50 gt S a S007 S006 S005 S004 S002 S003 BOOT _ C094 BooT 7 jas wE JE on 5006 CNO38 w a Ici04 xo 100 8 m o T zs g i ent 2 169 EE INV BACK UP F ie Or Ee z LA MAP I we xX SE CNO8S pg DET F002 5 eM g 5 vaoos g c12 Sps C1ot Ef 1C20 g Bats 1 gt i ey a aF soo g o 1C018 m 4 ge IT ne gt i O 8 CNO20 N P CHECK CN300 PD a g aa SAVE 0052 a 5 Cee CNO28 3 i D JP006 SEE ag wo WHT 3 5 3 SE e a LT SEE CNI21 Zz kg Kor iG 8 os JE wO e g WO 2o 8 ee pi SNOW G a NY cigs oa Z 5 022 061 021 er 035 3h 033 CNI4 O PE a gq 3 a PC004 RY015 RY014 RY027 g IC27 RS og ED J ae 1FA4B1B125400 0 E gt i 1 gt GI I id 51C12 cn050 G3PH3 a G3PH2 CN044 PBV3 PBV2 PBVI CN239 DCV3 CN237 DCV2 DCV1 CN059 N VA012 VA010 RY023 RY022 RY026 RYO21 RY020 RYOIT RYOIG VAO11 El br PCO06 PCO05 wo gt gt O oR49 a 2 C yg 18 2 2 ad 3 amp FE Nat a I i isi z e a 3 AC IN ok IS je RBV RCV cnon WHT CN1 09 a CN234 ontio gt cn201 2 Setting of Unit Control PCB 6 2 1 Main Outdoor Unit PCB Setting Test Run 2 Setting of Unit Control PCB amp Examples of the No of indoor units settings 8005 5004 Indoor unit setting 5005 Indoor unit setting S004 No of indoor units 3P DIP switch blue Rotary swit
7. 2 INGOOF UNI CONTOLPCG B use a E AEAEE ANRE 4 7 2 1 AC Fan Motor for CR U O7MF1U6 ccccccccccsececseeeeceeceeseeeeseaeeesessessneesaeeeseeeessaes 4 8 2 2 DC Fan Motor for GR UO vvs 4 8 2 3 XM Type for CR S 12MY1U6 POW XMO075XH arrrnnnnrnnnnnrnrannrnnnnrnrnnnrnnnnrnnnnnrnnnnnnnnnn 4 9 2 4 CR1 for CR KR74GXH56A S 07MK1U6 S 12MK1U6 Wall Mounted 4 10 2 5 CR1 for CR KR254GXH56A S 18MK1U6 S 24MK1U6 Wall Mounted 4 11 2 6 CR2 for POW KH2672R S 07MK1U6 S 24MK1U6 Wall Mounted 00000 4 12 2 Explanation of FUnNnCtiOnS EE 4 13 2 8 Explanation of Functions CR KXRP56AN CR KXRP80AN POW KRP50A 4 16 2 9 Instructions for Connecting External Heater to VRF Indoor Units rrrrrnrrrvrnnnrevrnnnnr 4 18 PCB and Functions 1 Outdoor Unit Control PCB 1 1 Outdoor Unit Control PCB CR U 96MF1U9 5002 5004 A ADD CN100 pin OAG CN105 pin MODE CN101 pin AP CN102 pin Alarm LED LED1 2 STOP CN104 pin CHK CN023 pin RUN CN103 pin 5006 TEST CN022 pin Terminal plug S010 EMG CN002 plug Control circuit fuse F003 S007 OC CNO01 plu l ee SL Pe Cry Um INN p EEPROM Low pressure sensor Dun EE Ny Ye IK LT memory IC RC CNO06 plug lt G I1C018 High pressure sensor ij RC1 CN106 plug Outdoor air temp NE Comp discharge 3 temp gal Gas temp sensor FEE at heat exchanger 1 2 RN Comp discharge 2 t
8. Alarm conditions Outdoor unit sub communications from outdoor unit main were interrupted for 3 minutes or longer Probable cause 1 After initial communications were completed the outdoor unit main sub control wiring was cut After initial communications were completed the RC connector CN006 became disconnected The power at the outdoor unit main is turned OFF Check Check the outdoor unit main sub control wiring Check the RC connectors Check the power at the outdoor unit main sub Correction Repair the outdoor unit main sub control wiring Correct the RC connector connection Trouble Diagnosis 3 W 3WAY VRF Alarm Codes F04 F05 Alarm Alarm code F04 Compressor 1 discharge temperature sensor DISCH1 trouble F05 Compressor 2 discharge temperature sensor DISCH2 trouble Alarm conditions 1 Discharge temp of 212 F or higher was detected 20 minutes or more after that compressor stopped operating 2 Discharge temp of 176 F or higher was detected after all compressors had been stopped for 60 minutes or longer 3 A D step is 10 steps or less Short circuit Probable cause 1 Sensor malfunction e Sensor element malfunction e Sensor wiring is partially disconnected resulting in increased electrical resistance yy This alarm does not occur when the wiring is cut or when the connector is not connected to the outdoor unit control PCB 2 Crossed wiring or installation error e The discharge temperature sensor
9. Compressor 3 oil level 0 Empty 1 Insufficient 2 Sufficient Outdoor unit power ON time 0 99999999 hrs Compressor 1 operation count 0 65535 times Compressor 2 operation count 0 65535 times Compressor 3 operation count 0 65535 times Alarm history 1 most recent Alarm history 2 Display only Alarm code and unit No of unit Alarm history 3 where alarm occurred are displayed alternately Alarm history 4 0 CCU Alarm history 5 1 2 Outdoor unit Alarm history 6 Alarm history 7 Alarm history 8 oldest 6 4 Service Checker Service Checker 1 Outdoor Unit Maintenance Remote Controller 3 XX YY R C Displays the outdoor unit sub bus address which is currently selected XX Outdoor unit system address 1 30 YY Outdoor unit address 1 2 The locations where 1 and are displayed as shown on Fig 6 3 Fig 6 3 Sample display Fig 6 4 Fig 6 5 iB h gt lt No of connected indoor units gt 4 units connected Fig 6 4 REMOTE CONTROLLER COPY EG ales O mam sa DE CEL Ha gt lt Unit Nos 1 2 3 4 connected gt Fig 6 5 Service Checker 1 Outdoor Unit Maintenance Remote Controller HM Concerning the 7 segment 4 digit display of remote controller timer time amp The unit Nos of connected units are indicated by four 7 segment digits HH HH and a colon 1 Display of unit Nos 1 20
10. Mini Slim Concealed Duct 0000 semi Concealed A 9001 semi Concealed x XM 0005 U UM Type 0006 D Setting data Description No Description ti Concealed Duct High Static Pressure 0007 Ceiling Mounted T 0008 Wall mounted K 0001 22 Type 0752 0003 28 Type 0952 0005 36 Type 1252 Indoor unit 1 80 Type 2452 1 capacity 0009 56 Type 1852 0012 Except FR254 FMR254 0015 112 Type 3652 0017 140 Type 4852 E Indoor unit Individual 1 1 Indoor unit with no group wiring Group No intake temperature shift Shifts intake temperature by 2 20 F F Shifts intake temperature by 2 F F Shifts intake temperature by 18 F it Shifts intake temperature by 20 Automatic Function disabled operation Stops automatically 10 minutes after operation starts san Can be set Stops automatically 615 minutes after operation starts r Stops automatically 620 minutes after operation starts Stops automatically 625 minutes after operation starts stop time a Stops automatically 5 minutes after operation starts Remote Control Functions 3 Timer Remote Controller Setting data Item code Description n 1B Forced thermostat ON 0000 5 minutes time 0001 4 minutes 20 F 18 F 16 F 010 Cooling discharge temperature shift 008 20 F 20 R JSF 16 F 0010 010 Heating discharge temperature shift E
11. Refer to the figure at below The basic wiring dia gram shows the 7P type terminal plate Therefore the terminal plate may differ from the illustrations 7P terminal board 5P terminal board o o o o K Type X U D Types S Model S O7MK1U6 Except 6 series LC LE TIE JLO LEO S 09MK1U6 S 12MK1U6 4 L1 2 12 Ut U2 Ri P2 1 L1 2 L2 UVI ve2 n w Power Unit Power Inter unit Remote supply control supply control controller Line wiring io mines ae 5P terminal board Cc 3 3 K Type Model S 18MK1U6 D S 19MS1U6 Add GB dd I T a w U2 nm Te S 24MK1U6 X XM A U UM T F FM Types POWER UNIT REMOTE ea ee SUPPLY CONTROL CONTROL Power Unit LINE LINE supply control Line PCB and Functions 2 Indoor Unit Control PCB 2 1 AC Fan Motor for CR S 07MF1U6 OG CN040 EEPROM op EMG CN044 VARISTOR VA100 CR UHX0762 Bade EN A SV 08201 a o i PTitiiit CN201 STE oils moder 10040 o SP10 MODEL 004 P02 ON202G6ND e pe PE mm omenet Ea L p 2 z _ z _ _ peng 2 i z coe _ EEE 16001 ro PULSE ST IC OND20 GRL eC es Wet fez Tv EN EXCT CN073 JP001 OPTION CN060 HEATER CN304 GRL CN020 DISP CNO72 POWER LED D002 CHK CN071 FA
12. AAA 2 2 5 x m gral Bag Bib guen neee Aer gi fe 8 HE 8 ce g g 3 WHT a on gb gh SOS eg de n xo B CNOIS C126 C125 S 33 2 5 8 g onals pA CN213 BLK Ha O N oO ep MOV2 amp N229 ae Mova CNZ30 ay MOVA OCES a Np 8 z 27 9 7 a mm A wo HYLLE B B a 555 55 BS BERS BABS Ns T I O 3 3 8 2 alders m L013 L017 L007 05 E ea a ee 8 ao x 9 l T fk OF Rs del a 1C26 88 385 Ic vu gg L005 a 55 004 an 040 632 051 057 Q S2 zor 2 egg S 8 p 4h sie thi 03 029 031 056 p e g a EC 8 Si S Oe 9 p L g 2 1c32 __ fT eg amp c188 IS 1 z y IC17 S 2 8 a Q cag T Q49 1 Z c182 Q C156 1c33 NY oa 2 L004 5 mr 1035 e 9 Q52 OS NO See 3 8309 Van i amp Hof g VA001 S D172 obs c27 N7 zE 15 o ee N om HO 8 g BS oe g eS oa Oi _ oO st r r cool c me 048 D136 O S N N 039 e 0175 MD osean HPS BKN LPS Bod 038 JF 0174 DD JET y mrk 504 eg Ei OG af a C173 C166 T001 OO Ll L Ic21 4A NDS CN092 a Loos gs 8 8 A L101 120 g dg 2 om amp g je RU R C ADD g amp 5 S 383 2 C128 ur A 3 gt onzo 1634 ICI6 g S003 35002 x 119 a CN226 ci29 JP030 C 2 h 5 T JP031 gt 102030 NO OF I U om JF GNO2 SP ya N S f Cit ica 85 HE 171 g or lt E B z 3 cite HOV cise L E Ec 8 5005 RED 5004 2 R159 a LED2 LED
13. Basic wiring diagram Example 2 e If link wiring is used When multiple outdoor main units exist remove the socket that is used to short circuit the terminal plug CN003 from all outdoor main unit PCBs except for one unit Alternatively move the sockets to the OPEN side No 1 main outdoor unit settings System address No of indoor units system 1 setting 13 units setting S002 8003 fa Os ji l T OFF No 2 sub unit No 3 sub unit No of Unit S007 i Unit og TE Ta number mN se R ON me wes oN sat Rag setting H B H setting a g l 9 OFF unit No 1 LG 2 OFF unit No 2 L z OFF unit No 3 17 2 3 OFF Unit Leave the socket that Unit Unit de 1 is used to short circuit No 2 No 3 y Main the terminal plug Sub Outdoor main sub Sub CN003 control wiring Inter unit control wiring A SEEVE A ee U Indoor unit na Remote controller communication wirin controller a g No 2 No 1 main unit settings Refrigerant System address No of indoor units circuit system 2 setting 9 units setting 8002 S003 8004 qa ER i OFF e No 2 sub unit settings No of a Unit Unit S007 outdoor ny number TE number QN units 2 units setting setting ofa Q a RA unit No 1 h JE unit No 2 Li 2 31 OFF Unit Move the socket to Unit ee the OPEN side No 2 y Main CN003 Sub Outdoor main sub con
14. F04 Compressor 1 discharge temperature sensor trouble DISCH1 F05 Compressor 2 discharge temperature sensor trouble DISCH2 FO6 Gas temperature sensor trouble at outdoor heat exchanger 1 EXG1 FO7 Liquid temperature sensor trouble at outdoor heat exchanger 1 EXL1 F08 Outdoor air temperature sensor trouble AIR TEMP F12 Compressor intake temperature sensor trouble SCT F16 High pressure sensor trouble HPS F17 Low pressure sensor trouble LPS F23 Gas temperature sensor trouble at outdoor heat exchanger 2 EXG2 F24 Liquid temperature sensor trouble at outdoor heat exchanger 2 EXL2 F31 Outdoor unit non volatile memory EEPROM trouble H03 Compressor 1 CT sensor disconnected or short circuit HOG Low pressure trouble H08 Compressor 1 oil detection sensor connection trouble H11 Constant speed compressor 2 overcurrent alarm H12 Constant speed compressor 2 lock current alarm H13 Compressor 2 CT sensor disconnected or short circuit H15 Compressor 2 discharge temperature sensor disconnected H27 Compressor 2 lock current alarm H31 HIC trouble alarm L04 Outdoor unit address duplication L10 Outdoor unit capacity not set L17 Outdoor unit model mismatch P03 Compressor 1 discharge temperature trouble P04 High pressure switch activated P05 Reverse phase or missing phase detected capacity mismatch P14 O2 sensor is activated P16 Compressor 1 overcurrent P17 Compressor 2 discharge temp trouble P22 Fan motor trouble P26 Inverter compressor high fre
15. Make absolutely sure that the wireless remote control unit and signal receiver are both in the same room e When operating the wireless remote control unit point it directly at the signal receiver A beep is heard when a signal is received properly e Avoid places where the wireless remote control unit will be obscured by curtains etc Remove it before operation When a multiple number of indoor units that can be operated by the wireless remote control unit have been installed in the same room with a multi unit or single unit installation this button enables addresses to be set in order to prevent the sending of signals to the wrong indoor unit Each of up to six indoor units can be controlled separately using its own wireless remote control unit by matching the number of the address switch on the operation area of the indoor unit and the number used for the address of its wireless remote control unit The indoor units cannot be controlled separately when they are used in a flexible combination format simultaneous operation of multi units format or any other such format since they will all operate at the same time The signal receiver has an address switch for signal reception and the wireless remote control unit has an address switch for signal transmission When the ADDRESS button on the wireless remote control unit is pressed the current address appears on the wireless remote control unit s display The buzzer sounds if the address displ
16. Operation failure of mechanical valve 3 Trouble The compressor discharge temperature does not decrease even when mechanical valve 3 is opened to 480 pulses Check Check whether or not mechanical valve 3 makes a grinding sound when the power is reset 2 Clogging of mechanical valve 3 Trouble The compressor discharge temperature does not decrease even when mechanical valve 3 is ON Check If mechanical valve 3 is open to 480 pulses then check whether or not the secondary side of the valve is cold 3 Insufficient refrigerant Trouble Liquid effectiveness is poor Check Check whether or not the superheating temperature is declining if the evaporator mechanical valve is opened to 300 pulses or more after checking for foreign object intrusion 4 Foreign object intrusion Trouble Liquid valve effectiveness is poor Check Check that there is no difference in the condensation or frost conditions between the strainer primary side and secondary side tubing 5 Crossed thermistor Trouble The discharge temperature of the other compressor is high although only this compressor is operating When the liquid valve turns ON the discharge temperature of the other compressor decreases 6 Accumulation of refrigerant in stopped outdoor units Trouble e System is OK when all outdoor units are operating however symptoms of insufficient gas occur when a certain outdoor unit is stopped e Condensation or frost is visible up to the top of the ac
17. Optical regeneration deodorant filter for air cleaning unit Deodorant filter Air blocking material for 3 way air discharge Air blocking material when a discharge duct is connected 1 3 6 6 0006 Air blocking material for 2 way air discharge Table 2 Table of DC Fan Motor Tap Settings ceiling mounted type Setting No Remote controller setting data Purpose of use names of accessories Hu 0000 Standard setting at time of shipping High ceiling setting 1 0001 Super long life filter Ammonia deodorant filter 65 by JIS colorimetric method Optical regeneration deodorant filter High performance filter 65 by JIS colorimetric method 3 one Deodorant filter 65 by JIS colorimetric method Table 3 Table of DC Fan Motor Tap Settings 1 way Air Discharge Semi Concealed type Setting No Remote controller setting data Purpose of use names of accessories ho 0000 Standard setting at time of shipping mr 0001 Optical regeneration deodorant filter 1 3 0003 Deodorant filter 65 by JIS colorimetric method Ammonia deodorant filter 65 by JIS colorimetric method Remote Control Functions 3 Timer Remote Controller Selecting the DC fan motor tap when setting from the PCB amp 4 way Air Discharge Semi Concealed type lt Procedure gt Stop the system before performing these steps 1 Open the electrical component box cover then check the indoor unit control PCB 2 Connect the jumper conn
18. Setting Automatic Address Setting in Heating Mode Indoor and outdoor unit power cannot be turned ON for each system separately In the following automatic setting of indoor unit addresses is not possible if the compressors are not operating Therefore perform this process only after completing all refrigerant tubing work Automatic Address Setting from Outdoor Unit 1 Perform steps 1 4 in the same way as for l 5 Turn the indoor and outdoor unit power ON at all systems 6 To perform automatic address setting in Heating mode on the outdoor main unit control PCB in the refrigerant system where you wish to set the addresses short circuit the automatic address pin CN100 for 1 second or longer then release it Be sure to perform this process for one system at a time Automatic address settings cannot be performed for more than one system at the same time Communication for automatic address setting begins the compressors turn ON and automatic address setting in Heating mode begins All indoor units operate To cancel again short circuit the automatic address pin CN100 for 1 second or longer then release it The LED that indicates automatic address setting is in progress turns OFF and the process is stopped Be sure to perform automatic address setting again Automatic address setting is completed when the compressors stop and LED 1 and 2 on the main unit control PCB turn OFF 7 Atthe outdoor main
19. Test Run Before attempting to start the air conditioner check the fol lowing All loose matter is removed from the cabinet especially steel filings bits of wire and clips The control wiring is correctly connected and all electrical connections are tight The protective spacers for the compressor used for trans portation have been removed If not remove them now The transportation pads for the indoor fan have been removed If not remove them now The power has been connected to the unit for at least 5 hours before starting the compressor The bottom of the compressor should be warm to the touch and the crank case heater around the feet of the compressor should be hot to the touch Both the gas and liquid tube service valves are open If not open them now Request that the customer be present for the trial run Explain the contents of the instruction manual then have the customer actually operate the system Be sure to give the instruction manual and warranty cer tificate to the customer When replacing the control PCB be sure to make all the same settings on the new PCB as were in use before replacement The existing EEP ROM is not changed and is connected to the new control PCB Balance tube Test Run ON Power must be turned ON at least 5 hours before attempting test run Power mains switch z a ror JOB LEAT aoh OXN L Liquid tube Disch t i
20. Ultra long life filter oil guard panel ammonia 0001 static pressure deodorizing filter optical regenerative deodorizing filter filter High ceiling use High ceiling setting 2 with standard panel Antibacterial high performance filter 90 For low Antibacterial high performance filter 65 static pressure Air cleaning unit air cleaning unit optical filter regenerative deodorizing filter deodorant activated charcoal filter For air blocking For 3 way discharge when discharge duct is material connected ooge Groloekng ex 2 way discharge material Flap swing mode 0000 No humidifier output Fan tap setting Fan tap change in order to prevent drop in air discharge caused by filter installation 0003 Humidifier ON 0902 ue ON time per 60 state 7 seconds 0059 0060 Continuously ON Repeat timer 0000 Function disabled switching 0001 Timer function 0 change prohibit 0001 Smudging control 0000 Function enabled Function disabled Function enabled No smudging control O O Remote Control Functions 3 Timer Remote Controller Selecting the DC fan motor tap when setting with the remote controller lt Procedure gt Stop the system before performing these steps Press and hold the 4 SET and buttons simultaneously for 4 seconds or longer 2 If group control is in effect press the button and select the address unit No of the indoor unit
21. a preset time elapses OFF Cycle Timer C O _ The air conditioner always stops after a preset time elapses ON Timer a The air conditioner starts after a preset time elapses K Time setting buttons Press this button to increase the time Press this button to decrease the time L L SET button L SET button Use this button to set the timer M CL button Use this button to clear the timer setting N VENTILATION button This is used when a ventilation fan available commercially is connected Pressing the VENTILATION button turns the fan on and off The ventilation fan also turns on and off when the air conditioner unit is turned on and off The display of the remote control unit shows while the ventilation fan is running If the VENTILATION button is held down for 4 or more seconds when the batteries have been replaced 7 appears on the display and the ventilation fan can be used O Remote control sensor This detects the temperature around the remote control unit when the remote control unit position has been selected using the sensor button P ACL button ALL CLEAR Puts the wireless remote control unit into pre operation status This is used after the batter ies have been replaced or when the slide switch setting has been changed Q Slide switch This switch is for setting the operation mode of the indoor unit and setting the flaps The wireless remote control unit sends the temperature signal to the ai
22. buttons results in the sounding of five beeps and the attempted change in the operation will not be accepted Remote Control Functions 2 Wireless Remote Controller 2 3 Operation STEP 2 STEP 3 STEP 1 6 NOTE e To warm up the system the power mains must be turned on at least five 5 hours before operation STEP 1 To start the air conditioner STEP 2 Setting the mode STEP 3 Setting the fan speed STEP 4 Setting the temperature STEP 5 Setting the airflow direction STEP 6 To stop the air conditioner Press the operation button ON OFF button Press the MODE button to select the mode of your choice AUTO 2 HEAT DRY COOL or FAN Press the FAN SPEED selector button to select the fan speed of your choice SS AUTO 83 HI B MED or LO If AUTO is selected the fan speed switches automatically Use the V or a button as appropriate to change the temperature setting as desired v reduces the temperature and a increases the temperature The temperature cannot be set during FAN mode operation When more than one indoor unit is connected the UNIT button is used first to select a unit Then use the FLAP button to set the airflow direction to a specific angle or to sweep Press the operation button ON OFF button again Automatic heating and The air conditioner automatically performs heating and cooling operat
23. changed by pressing the FLAP button p a lt Compressor total operating time gt A and B are displayed alternately The example here 0000 0062 indicates 62 hours Sample Display A B Service Checker 1 Outdoor Unit Maintenance Remote Controller 1 4 Monitoring Operations Display the indoor unit and outdoor unit sensor temperatures lt Operating procedure gt Press and hold the CHECK and 8 CANCEL buttons simultaneously for 4 seconds or longer to engage temperature monitor mode During temperature monitoring displays The display and operations are the same as for monitor mode using the indoor unit remote controller 2 Press the UNIT UNIT button and select the indoor unit to monitor za 3 Press the temperature setting C a and C Y buttons and select the item code of the temperature to monitor The unit No of the selected indoor unit and the temperature data are displayed 4 To end monitoring press the CHECK button The display returns to the normal display AOS The display does not blink E Display of unit No 1 main unit DN Description Remarks Intake temp TF mn E2 SE SF ra Discharge temp oF Indoor unit electronic control valve position STEP Discharge temp 2 at Compressor 2 F Heat exchanger gas 1 F Heat exchanger gas 2 F Outdoor air temp F Not used Ap Inverter
24. correcting the indoor unit quantity setting or the inter unit control wiring perform automatic address setting again Exampe 19 gt Notes 97 O E20 Alarm Alarm code E20 No indoor units at automatic address setting Alarm conditions When automatic address setting was performed no indoor units were recognized Probable cause The inter unit control wiring from the outdoor unit to the indoor units has been cut Serial connector OC CN001 is disconnected at the outdoor unit The power is OFF at all indoor units in the system Check whether the inter unit control wiring from the outdoor unit to the indoor units is cut Check whether serial connector OC CN001 is disconnected at the outdoor unit Check the power at the indoor units 1 Reconnect the inter unit control wire from the outdoor unit to the indoor unit Example 19 Notes Position of serial connector OC CN001 on W 3WAY control PCB af aan i Ta as d x i i i EG h Ki PD p wi Jet ie 69 7 Aae N cse 1033 g gt ee og 0 as YY oy gen We Aande news 1K P PR DNS I 4 yee gt 7 i E24 Alarm 1 2 3 Check 1 2 3 1 Alarm code Alarm meaning Outdoor unit main failed to receive signal from other outdoor unit sub Alarm conditions After initial communications were completed communications from an outdoor unit stopped Probable cause 1 After initial communications were completed the outdo
25. external heater functions as a supplementary heater in the heating mode and it can continue working even when there is an alarm in the system except the type of the alarm is the following P01 or P12 Failure in the indoor unit fan F10 Failure of return air sensor ee In the case of EEPROM setting to the code 02 from the code 38 take caution as the indoor fan drives during the alarm mode regardless of the driving mode excepting P01 P12 EEPROM setting for work as emergency heater e If the item code 38 of the indoor EEPROM is changed from 0000 to 0002 the heater functions as emergency heater and keep on working even when the system is in alarm See the below how to select and change item code 38 using remote controller CZ RTC2 lt Procedure of Indoor EEPROM Setting Changes gt 1 Press and hold the and buttons simultaneously for 4 seconds or longer 2 unit No amp or Ag 2 in the case of group control item code 2 and settings data HE XX are displayed blinking on the remote controller LCD display At this time the indoor unit fan or all indoor unit fans in the case of group control begins operating 3 If group control is in effect press the button and select the address unit No of the indoor unit to set At this time the fan at the indoor unit begins operating 4 Press the temperature setting C a _ C v buttons to select the item code to change 5 Press the timer time 4 f buttons
26. failure An alarm occurs for current detection trouble when it is judged that no current is flowing after start DCCT is damaged In this case the cause is a DCCT failure Check the power wiring and connector wiring Correction It is possible to resolve this trouble S PoSS2e 2 reso ve MS TOUTS y ming De macmum Teuer limiting the maximum frequency Example EE gt Trouble Diagnosis 3 W 3WAY VRF Alarm Codes P22 Alarm Alarm code Alarm meaning Fan motor trouble Fan motor start failure fan motor Hall IC input failure Possible causes are a Hall IC input circuit failure and a fan HIC failure Check Check the fan motor wiring the Hall IC wiring and the connector connections If the wiring and connectors are normal then check that the capacitor of the Hall IC input circuit is securely soldered onto the PCB Also use a tester and measure the resistance between fan HIC power HIC and ground HIG If there is a short circuit there is an HIC malfunction A Sa gt DON T TOUCH eet _ gt gt ey DNG L i amp i Correction If the fan does not start the below corrections may be effective 1 If there is a fan HIC failure or circuit failure replace the PCB 2 If the fan motor is locked replace the fan motor Turn OFF the power and check the continuity of and on the fan circuit PCB gt lt Le P26 Alarm Alarm code P26 Alarm meaning Inverter compressor high freque
27. indoor units in the same refrigerant system set the number of connected indoor units For details refer to Table 2 S005 DIP switch 3P blue Switches for setting the 10s 20s and 30s digit for the number of connected indoor units If 10 systems or more are set the setting is made by a combination of this DIP switch and S004 If 10 19 systems are set set only switch 1 10s digit to ON If 20 29 systems are set set switch 2 20s digit to ON and set switch 1 10s digit to OFF If 30 39 systems are set set only switch 3 30s digit to ON For details concerning S004 and 5005 refer to Table 2 5006 DIP switch 3P blue Switch for setting the number of outdoor units e Turn the switches ON according to the number of outdoor units 1 4 For details refer to Table 3 5007 DIP switch 3P blue Unit No setting switch e The setting is 1 at the time of shipment For details refer to Table 4 5010 DIP switch 3P blue Backup operation switch If an INV compressor has malfunctioned turn CT1 ON and Back Up SW ON to operate the outdoor unit using only the constant speed compressor lf a constant speed compressor has malfunctioned turn CT2 ON and Back Up SW ON to operate the outdoor unit using only the INV compressor Disconnect the wiring from the constant speed compressor PCB and Functions 1 Outdoor Unit Control PCB Terminal plug 3P plug black For communications circuit inpedance matching e A conn
28. is 5 C or more above this level then it is possible that over charging may have occurred During heating There is an indoor unit where refrigerant flow is poor E1 temperature and discharge temperature are low and the mechanical valve of that unit is opened to 300 pulses or more and the E1 temperature is close to room temperature However be aware that this kind of data results often when there is a height difference between indoor units Reducing the amount of refrigerant will improve the refrigerant flow however reducing it too much will increase the likelihood of alarms related to low oil level scroll side the low pressure SW and discharge temperature Use caution Example This alarm may result when the service valve is closed or when valve leakage particularly from the mechanical valve occurs Trouble Diagnosis 3 W 3WAY VRF Alarm Codes F17 Alarm Low pressure sensor LPS trouble Alarm conditions 1 Sensor short circuit 2 Sensor open circuit Probable cause 1 Sensor malfunction including connector 2 PCB malfunction Check Measure the sensor resistance Check that the sensor is operating normally Use a remote monitor or a PC monitor to check the temperature that is recognized by the microcomputer 1 2 Mos F31 Alarm Alarm code Outdoor unit non volatile memory EEPROM trouble Alarm conditions Non volatile memory is not present when power initialization occurs R
29. is necessary to wire to the high voltage CN304 WHT External heater electrode separate from the low voltage Electrical component box for indoor unit CN340 BLK ta J TT OT TTT 2 Heater drive signal wiring B O O AL l External heater Heater output terminal J CN340 BLK Continued PCB and Functions 2 Indoor Unit Control PCB 1 The output signal is 12V DC 1 is and 2 is 2 A mistake in polarity while connecting might cause damage to both heater side and the PCB of the indoor unit 3 When installing the heater be sure to turn OFF the power to the indoor unit 4 5 If it is wired to the HU connector adjacent to the heater output terminal by mistake the heater signal can not be output correctly The connector for this output is separately sold by the following part code 623 312 1390 Make connection inside the electrical component box 2 Wiring inside the electrical component box of the indoor unit should be carried out referring to the wiring diagram of each model Since it is necessary to wire to the low voltage electrode separate from the high voltage Functions amp Settings of External Heater Signal Output Setting at factory shipment e The external heater functions as a supplementary heater in the heating mode The heater stops at the occurrence of alarm in the system When the indoor EEPROM setting is set as emergency heater e The
30. is set to 0 J o These are the settings at the time of factory shipment 1 2 OFF 4 To set the number of indoor units that are connected to the outdoor unit to 13 on the outdoor main unit control PCB set the ON ON No of indoor units DIP switch S005 to 1 m H and set the rotary switch S004 to 3 1 2 3 OFF 5 Turn on power to all indoor and outdoor units in the system 6 Short circuit the automatic address pin at the outdoor main unit CN100 for 1 second or longer then release it J Communication for automatic address setting begins To cancel again short circuit the automatic address pin CN100 for 1 second or longer then release it The LED that indicates automatic address setting is in progress turns OFF and the process is stopped Be sure to perform automatic address setting again Automatic address setting is completed when LEDs 1 and 2 on the outdoor main unit control PCB turn OFF 7 Next turn the power ON only for the indoor and outdoor units of the next different system Repeat steps 1 5 in the same way to complete automatic address settings for all systems l 8 Operation from the remote controllers is now possible To perform automatic address setting from the remote controller perform steps 1 5 then use the remote controller and complete automatic address setting amp Refer to Automatic Address Setting from Remote Controller Test Run 3 Auto Address
31. memorized in the indoor unit DATA setting will not be changed even when the power is turned off CODE DATA Tu TE 700 Film No Yor 33 Temperature unit C F 3 8 To Display the Sensor Temperature Press both and buttons on the remote controller for more than 4 seconds together amp Change the sensor address CODE No with Ca C7 buttons amp Select the UNIT No which you want to call with the button amp Press the button to finish service mode 3 9 To Display the Trouble History Press both and buttons on the remote controller for more than 4 seconds together Change the alarm message _4_ C 7 buttons CODE No ip amp Press the A button to finish service mode New Old Remote Control Functions 3 Timer Remote Controller Caution when installing the remote controller 1 Install the remote controller more than 3 3 8 apart from the wall surface 2 To install the remote controllers side by side keep the space between each for more than 4 59 64 3 To install the remote controllers one above the other keep the space between each for more than 1 4 3 4 5 8 4 9 16 unit in Remote Control Functions 3 Timer Remote Controller 3 10 Setting the Present Time 1 Press and hold si for more than 2 seconds to enter in the present day and time setting mode TIMER Once you enter in the setting mode B t day and
32. more than one indoor unit is operated by one re mote control unit this button is used to select a unit when adjusting the air direction 8 Timer setting buttons 13 gt Weekly Program Function 9 FILTER reset button Use this button to reset the filter sign When is displayed press this button after cleaning the filter a J Start Stop button 10 Remote Control Functions Ventilation button Use this button when you installed a fan available in the market Pressing this button turns on and off the fan When turning off the air conditioner the fan will be also turned off While the fan is operating 7 will appear in the display If is displayed on the LCD of the remote control unit when pressing the ventilation button no fans are installed Inspection button Do not use this button amp Sleeping button I gt Sleeping Function Remote control sensor Normally the temperature sensor of the indoor unit is used to detect the temperature However it is also pos sible to detect the temperature around the remote control unit Do not move the flap vertical airflow adjustment board with your hand The flap is automatically directed down when the unit is stopped The flap is directed up during the HEAT standby The flap starts swinging after the HEAT standby is can celled although the AUTO flap indication on the remote control unit is displayed during the HEAT standby 3 Timer Remote Contr
33. of that compressor is connected to the discharge tube of the other compressor e The connector for the discharge temperature sensor of the problem compressor is connected to the outdoor unit PCB connector for the other compressor 3 Outdoor unit PCB failure 4 The check valve on the discharge tube for that compressor is wet 5 An air short blockage in the area around the outdoor unit has increased the outdoor unit ambient temperature reducing the cooling effects after the compressor stops 6 There is a cause that results in P03 P17 or P18 alarm 7 Electrical noise Check 1 Sensor malfunction and outdoor unit PCB failure Trouble Constantly indicates a high temperature e When monitoring software or other means are used for monitoring the discharge temperature at times fluctuates suddenly and wildly In some cases the precise temperature may not be known even when monitoring software is used Check e Wiggle the sensor and check whether the trouble continues e Check whether the connector is partially disconnected from the PCB yr An F04 alarm will not result if the connector is completely disconnected circuit is open e f the cause is still uncertain check the following to determine whether a sensor or PCB failure has occurred Step 1 Connect the other compressor discharge sensor or a discharge sensor where the F04 alarm has not occurred to the connector for this compressor on the PCB Measure the temp
34. operation or heating operation is selected This standby status is known as monitoring mode 2 After operation starts in the selected operating mode the set temperature is automatically shifted by 4 F cooling opera tion or 4 F heating operation Example Temperature set on the remote controller is 68 F Selected operating mode Shifted set temp Remote controller display 3 Operating mode changes heating cooling cooling gt heating which occur during operation as a result of temperature changes are handled as shown below Heating gt cooling Room temperature Shifted set temperature set temperature 4 F 1 F amp Cooling gt heating Room temperature gt Shifted set temperature set temperature 4 F 2 F Example Temperature set on the remote controller is 68 F Operating mode change Shifted set temp Heating Cooling 68 4 1 73 F or higher 2 Cooling Heating 68 4 2 62 F or lower 2 During heating operation when the body sensor is used a temperature shift is applied to the intake temperature detected by the sensor in consideration for the difference in temperature at the top and bottom of the room Refer to the Room Temperature Control item If this intake shift temperature is 7 F then the heating cooling change occurs when the temperature detected by the body sensor is 80 F or higher 4 Cooling heating operation does not change i
35. outdoor units Blinks when alarm occurs e Indoor thermostat ON e Display of individual outdoor unit alarms e Total operating time of outdoor unit compressors e Oil level of the outdoor unit oil sensor e Total outdoor unit power ON time e Outdoor unit microcomputer version other information 6 2 1 Outdoor Unit Maintenance Remote Controller HM Temperature monitor Displays the temperature from each indoor outdoor sensor M Outdoor unit alarm history monitor Displays the outdoor unit alarm history M Setting the outdoor unit EEPROM data Service Checker Settings mode 1 and settings mode 2 can be used to make outdoor unit EEPROM data settings 1 3 Ordinary Display Controls and Functions E Functions on the ordinary display Connect the special service checker wiring to the outdoor unit PCB The connection diagram is shown below Outdoor unit PCB RC 3P blue PCB connector 3P blue Wire K 623 178 5082 Special service checker wiring Relay connector 2P white Outdoor unit maintenance remote controller All units start stop Fig 6 1 lt Operation gt The ON OFF operation button can be used to start and stop all indoor units e The LED illuminates if any indoor unit is operating e The LED blinks if an alarm occurs at any of the operating indoor units Cooling heating change Fig 6 1 lt Operation gt The MODE button can be used to change between heat
36. programs a week can be set Select the day and the TIMER number you want to program Program image diagram button Vertical scale indicates the TIMER No and horizontal scale indicates the day TIMER No s uo uwein nH Se If the day is changed the TIMER No returns to 1 R the 42 ee Press Prom to enter the program confirmation mode te CS r4 and start setting P PROGRAM Once you enter the program confirmation mode the present day is indicated as TIMER No 1 2 Select the day Press and a w to move the horizon tally on the day to select Press 4 to move flashing on the display in the order of Su gt Mo gt Tu Press v to move it in the order of Su gt Sa gt Fr is displayed when the program is not set 3 Select a Timer number Press to select a TIMER No from 1 to 6 Press 4 to move up from 1 Press v to move down from 6 gt 2 UC e Yoru oTu Ws eS mid TE Hr OG ah TIMER No 1 6 Remote Control Functions 3 Timer Remote Controller amp Changing the Program Timer TIMER To set the weekly program follow the steps below 1 Select the program you want to set in the program DE confirmation mode and press f The enters the setting mode of the program currently displayed In the program setting mo
37. simplified setting mode Cooling Heating AT AT Room temperature Room temperature deg deg 4 2 2 Set temperature Set temperature 2 _9 4 Thermostat Thermostat ON 1 After the thermostat turns ON it will not turn OFF again as a result of A T for 5 minutes 2 After the thermostat turns OFF it will not turn ON again for 3 minutes It also will not turn ON for 3 minutes after the power is switched ON 3 The compressor turns OFF if the mode is changed cooling heating or heating cooling while the compressor is ON 4 If test run mode is selected the thermostat will not turn OFF as a result of A T for 60 minutes The thermostat is forced ON Remote Control Functions 1 Main Operating Functions 1 2 Automatic Control for Heating and Cooling Automatic Heating Cooling Control 1 When operation starts heating or cooling is selected according to the set temperature and the room temperature amp Room temperature gt Set temperature 2 3 Cooling amp Set temperature 2 lt Room temperature lt Set temperature 2 Monitoring mode 1 amp Room temperature lt Set temperature 2 gt Heating 1 If the difference between the room temperature and set temperature is small when operation starts the cooling thermostat remains in standby status OFF until the temperature difference increases When the temperature differ ence increases either cooling
38. sure to indicate them Checking the indoor unit addresses Use the remote controller to check the indoor unit address lt lf 1 indoor unit is connected to 1 remote controller gt 1 Press and hold the button and a button for 4 seconds or longer simple settings mode 2 The address is displayed for the indoor unit that is connected to the remote controller Only the address of the indoor unit that is connected to the remote controller can be checked 3 Press the button again to return to normal remote controller mode lt If multiple indoor units are connected to 1 remote controller group control gt 1 Press and hold the button and button for 4 seconds or longer simple settings mode 2 ALL is displayed on the remote controller 3 Next press the button 4 The address is displayed for 1 of the indoor units which is connected to the remote controller Check that the fan of that indoor unit starts and that air is discharged 5 Press the button again and check the address of each indoor unit in sequence 6 Press the button again to return to normal remote controller mode Sai UNIT No R C No Number changes to indicate which indoor unit is currently selected 4 Remote Controller Test Run Settings 1 Press the remote controller button for 4 seconds or longer Then press the 1 button TEST RUN appears on the LCD display while the test run is in progress The temperature cannot be
39. to select the desired setting data For item codes and setting data refer to the following page 6 Press the button The display stops blinking and remains lit and the setting is completed 7 Press the button to return to normal remote controller display PCB and Functions 2 Indoor Unit Control PCB The following charts show the drawings of the wiring layout of the heater output signal Install the connector for the output part code 623 312 1390 to the location marked with CN304 or CN340 Install the wiring connection into the electrical component box Also be sure to insulate the connection terminal Concerning the model of S MF S MP S MR S ME assort with the side of the high voltage wire Concerning the model of S MU S MY S MD S MT S MM assort with the side of the low voltage wire Model S MF Model S MP S MR 2 Q Part code 623 312 1390 a FI N Field suppl Part code 623 312 1390 PE CN304 Field supply Connecting part in the local fields e For safety keep one position away from another e Be sure to insulate without fail e Applicable to all models Model S ME Part code 623 312 1390 J T Field supply PCB and Functions 2 Indoor Unit Control PCB Mo
40. unit No set to 1 is the main unit All other units are sub units YES Turn ON the indoor and outdoor unit power for that refrigerant system only Make necessary corrections Turn OFF the indoor and outdoor unit power Check the alarm contents NO Short circuit the automatic address pin CN100 on the outdoor main unit PCB for 1 second or longer then release it LED 1 and 2 blink alternately about 2 or 3 minutes Are LED 1 and 2 on the outdoor unit PCB OFF Diagnostic Functions and Description of Alarm Displays YES Check the alarm contents 2 A minimum of 5 hours must have passed after the power was turned ON to the outdoor unit 3 All indoor units operate in all refrigerant systems where the power is ON Check that test run preparation is OK Do not allow the short circuited pins to remain short circuited Set the wired remote controller for test run Refer to the remote controller test run settings Does system operate YES Return remote control to normal mode End test run Check and make corrections according to Table of Self Diagnostic Functions Test Run HICI CN81 HIC2 ver CTL2 BLK CTL CT3 YEL CT2 DISCHI DISCH2 DISCHS vey RCI CNOIS kr MOVI CNOIG cns2 HIC3 N00 O CN211 h l ENO CROSS YEL g r cue BLU ONO a C engot ww Anas WHT cn212 Jo F002N VA008 bi A ve x o fo a Z Del OIL1 OIL2 0103 o 8 du ed 1 0A N
41. unit is correct however the refrigerant type setting in the outdoor unit EEPROM item code 80 is incorrect 1 Check the refrigerant type at the connected unit 2 Use the outdoor unit maintenance remote controller and check the item code 80 refrigerant type If the setting is incorrect change it to R410A Correction Example mm Notes The outdoor unit maintenance remote controller is required in order to set the refrigerant type in the outdoor unit EEPROM Trouble Diagnosis 3 W 3WAY VRF Alarm Codes P03 P17 Alarm Alarm meaning P03 Compressor 1 discharge temperature trouble P17 Compressor 2 discharge temperature trouble Alarm conditions Probable cause Check Pre trip stop at 222 F 106 C or higher This alarm occurs when the pre trip counter reaches 4 However the counter is reset when the compressor has operated continuously for a certain length of time Operation failure of mechanical valve 3 Clogging of mechanical valve 3 Insufficient amount of refrigerant including trouble resulting from an insufficient initial charge and from gas leakage 4 Blocking of low pressure parts caused by intrusion of foreign objects moisture scale etc 5 Crossing tubing or PCB connectors with the other compressor thermistor 6 Expansion valve operation failure 7 Accumulation of refrigerant at stopped outdoor units 8 Compressor discharge sensor failure 9 PCB failure A D conversion failure 1
42. wireless remote control unit the mark appears in the display to transmit the setting changes to the receiver in the air conditioner C MODE button Use this button to select one of the following five operating modes A Used to automatically set cooling or heating operation Only for single heat pump type Temperature range 62 80 F Used for normal heating operation Only for heat pump type Temperature range 60 78 F Used for dehumidifying without changing the room temperature Temperature range 64 86 F Used for normal cooling operation Temperature range 64 86 F Used to run the fan only without heating or cooling operation Ca Press this button to increase the temperature setting _v_ Press this button to decrease the temperature setting E FAN SPEED selector button The air conditioner automatically decides the fan speeds High fan speed Medium fan speed LO Low fan speed 2 4 Continued Remote Control Functions 2 Wireless Remote Controller F FILTER button If a separately installed signal receiver is being employed this button is used to turn off its filter lamp When the filter lamp has lighted first clean the filter and then press the FILTER button to turn off the filter lamp When a wired remote control unit and wireless remote control unit are both used the filter sign on the wired remote control unit will appear When this happens first clean the filter and the
43. 1 Jumper wire Allows selection of the T10 terminal start stop signal Refer to the remote control section Status at JO1 shipment Pulse signal Jumper wire cut Static signal continuous signal FAN DRIVE 2P plug white This terminal sends a signal to the ventilation fan when the FAN button on the wired remote con troller is used to operate a commercially available ventilation fan Refer to the remote control section Use a ventilation fan which can accept no voltage A contact as the external input signal FILTER 2P white This terminal is used to connect contact input from the differential pressure switch which detects filter CN70 clogging When the contacts turn ON FILTER is displayed on the wired remote controller Power LED LED red IIluminates when power is supplied Blinks when there is a failure in the EEPROM IC10 nonvolatile memory EEPROM Nonvolatile memory Memory which stores the unit type data and other information When the PCB is replaced IC10 remove the EEPROM from the old PCB and install it onto the new PCB If an IC failure occurs replace with a new IC which was provided with the service PCB and set the necessary information from the wired remote controller For the procedure refer to the servicing technical materials GRL For AC fan motor CR S 07MF1U6 3P yellow CN20 For DC fan motor CR S 07MM1U6 5P blue The indoor unit power terminal plate will be a 7P type or may be a 5P type
44. 3 HP 11 091 HP 436 94 0 0254 HP 0 0298 HP 0 8842 These points are calculated from the oil temperature and compared with the discharge temperature Lower than the lage temperature No oil Discharge temperature High pressure Higher than the discharge temperature Oil present Low pressure MOil temperature Probable cause Insufficient amount of oil in the system 1 The length of system tubing exceeds the allowable tubing length 2 The difference in height between system units exceeds the allowable value 3 A large amount of oil was drained when a compressor was replaced 4 Oil has accumulated in a stopped outdoor unit and has not returned as a result of refrigerant circuit clogging or valve leakage at the stopped outdoor unit 5 A valve ORVR BALV BPB in the oil circuit has malfunctioned or there is clogging of the circuit capillaries which returns oil from the oil separator to the compressor 6 If an excessive amount or liquid returns to the compressor oil foaming may increase oil discharge The same occurs when the refrigerant proportion in the compressor is high at start due to an open circuit in the crank case heater Check the tubing length and height differences Check the operation of system circuit valves Check that there is not an excessive amount of liquid return Check that there is no mechanical valve leakage Check the crank case heater wintertime Check that the oil
45. 3 162 4435 DC 12V Relay field supply FAN DRIVE 2P plug white To external control input terminal on ventilation fan Indoor unit control PCB Note The length of the wiring from the indoor unit control PCB to the relay must be 6 6ft or less PCB and Functions 2 Indoor Unit Control PCB OPTION 6P white Outputs external signals as shown in the figure below ENDE Relay DC 12V field supply Note Fan signal OPTION white SNERO rol alafor Heat start signal Cool start signal Indoor unit control PCB CR1 Thermostat signal Defrost signal Note The relay must be installed at a distance of 6 6ft or less from the PCB PCB and Functions 2 Indoor Unit Control PCB 2 9 Instructions for Connecting External Heater to VRF Indoor Units By using the heater driving signal of the indoor unit Control PCB the external heater can be controlled as a united heating system with the indoor unit Also by changing the EEPROM setting of the indoor unit the external heater can be operated even when there is an alarm occurred on the system 1 Make sure to install protective devices like thermal fuse thermal switch or current fuse with the heater The PCB of the indoor unit just output operation signal and does not recognize whether there is danger or not on the heater side We can not take responsibility on the damage occurred on the heater side 2 Be sure to follow the Electrica
46. F OFF Table 4 Setting the Outdoor Unit address Outdoor i a SEG 5007 gi Address ja 3 Ton GF om gt EE o fom on om ON OF pr MN PCB and Functions 2 Indoor Unit Control PCB Indoor Unit Control PCB Switches and Functions Indoor unit control PCB T10 6P plug yellow Used for remote control Refer to the remote control section CN61 Control items 1 Start stop input 2 Remote controller prohibit input 3 Start signal output 4 Alarm signal output EXCT 2P plug red Can be used for demand control When input is present forces the unit to operate with the thermostat CN73 OFF DISP 2P plug white Short circuiting this plug allows the unit to be operated by the remote controller even if it is not CN72 connected to an outdoor unit In this case alarm E04 which indicates trouble in the serial communication between the indoor and outdoor unit does not occur CHK 2P plug white Test pin Short circuiting this pin allows the indoor FM H fan speed drain pump flap motor F1 position and electronic expansion valve full open position to be checked However this function turns OFF if the indoor unit protection mechanism is activated The unit can be operated even if the remote controller and outdoor unit are not connected However even if the remote controller cannot is con nected it cannot be used to operate the unit This function can be used for short term tests JP
47. Improper connections and inad equate grounding can cause accidental injury or death e Ground the unit following local electrical codes e Connect all wiring tightly Loose wiring may cause over heating at connection points and a possible fire hazard When Transporting Perc ecerccccccrcererrceeereeeeeEeEEeEeEEeEEEEEEE EEE EEO E EDEL EEE E ELL EE ESOL EEE LELELELELELELEEESEEEESEEEESEEELESEEEEEEEEEEEEEEEE Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminum fins on the air conditioner can cut your fingers When Installing POOP eo e Hee Eee HEE EEE EEE EEE LETHE EEE O OEE E ELE E ETHOS EEE L OLE EHEEEE EL EEESHOEEEESELEESEEEEEHEEEEEEEEE EE EEEEEE EEE DEE EEE EEE DEEL LEED In a Room Properly insulate any tubing run inside a room to prevent sweating that can cause dripping and water damage to walls and floors 1N Moist or Uneven Locations Use a raised concrete pad or concrete blocks to provide a solid level foundation for the outdoor unit This prevents water damage and abnormal vibration In an Area with High Winds Securely anchor the outdoor unit down with bolts and a metal frame Provide a suitable air baffle In a Snowy Area for Heat Pump type Systems Install the outdoor unit on a raised platform that is higher than drifting snow Provide snow vents When Connecting Refrig
48. Indoor unit address is not set LO8 Capacity code of indoor unit is not set lt lt L09 gt gt Duplication of outdoor system address setting L04 Capacity code of outdoor unit is not set L10 Mismatch of outdoor unit type L17 Thermistor Indoor unit Indoor coil temp sensor E1 lt lt F01 gt gt fault Indoor coil temp sensor E3 lt lt F03 gt gt Indoor suction air room temp sensor TA lt lt F10 gt gt Indoor discharge air temp sensor BL lt lt F11 gt gt Continued 1 14 Test Run 6 Meaning of Alarm Messages Possible cause of malfunction Here Activation of Protective device in indoor unit Thermal protector in indoor unit fan motor is activated lt lt P01 gt gt protective is activated Im i f ceili lt lt P09 gt gt device proper wiring connections of ceiling pane Float switch is activated lt lt P10 gt gt Operation of protective function of fan inverter P12 O sensor detects low oxygen level activated P14 Incorrect discharge temperature Comp No 1 INV P0O3 High pressure switch is activated P04 Compressor running failure resulting from missing phase in the compressor wiring etc Start failure not caused by IPM or no gas Incorrect discharge temperature Comp No 2 constant speed Outdoor unit fan motor is unusual P22 Overcurrent at time of compressor runs more than 80Hz DCCT secondary current or ACCT primary current is detected at a time other P26 than when IPM has tripp
49. Mounted If the fuse F002 has blown determine the cause and correct it CHK test pin Then change the socket DISP pin from the OC plug to the EMG plug TRANS S plug Control circuit fuse F002 gt 5 EMG plug op 8 OC plug or ALEN GET ie RC plug 8 wor hae BLE i RUN ON OFG I iG i ee hinne Y spe N M FAN DRIVE plug HE E ff a ay OPTION plug Microcomputer T10 plug JPO01 Nonvolatile memory IC k E Q m Fr ErR Ja B 8 r 5 ol Indoor heat exchanger L i Power LED LD002 EXCT plug Indoor heat exchanger Room temperature E1 sensor TA sensor 4 11 PCB and Functions 2 Indoor Unit Control PCB 2 6 CR2 for POW KH2672R S 07MK1U6 S 24MK1U6 Wall Mounted Control circuit fuse Control circuit fuse F 3 YEN e Jean i A KEN NNK an F202 F201 TRANS S plug CN202 T20 plug ne POW KH26 IF A4B 18092500 TK nd C 19 LHM LOCNO mey J5Y 902 11 0 f i Some models do not correspond to target products depending on the year of production PCB and Functions 2 Indoor Unit Control PCB 2 7 Explanation of Functions T10 CNO61 Remote control operation T10 CN061 Forced OFF control Need to set EEPROM data at Code 2E to 0001 Refer to Page 2 35 Detailed Setting Function 6P plug yellow Used for remote control Control items Start stop input Remote control
50. N DRIVE CN032 FILTER CNO70 Eg de Some models do not correspond to target products depending on the year of production 2 2 DC Fan Motor for CR S 07MM1U6 POWER LED D002 EEPROM IC010 RED i uN w067 lt P B 2 0341 Ivf DE 1 as lt N w D m ae Cs a o pp RILO Rage RITE Y H 3 og 5 1 1 mao 4 WR373 H 302 44 R372 IPALBIBOG4900 2 a PCR EE f Hfi oe T OPTION ee GRL CNo60 FILTER DISP JPoot PE aoa CNO20 CNO70 CNO63 CN304 T10 CHK EXCT oxo a ae ie CNO61 CN062 CNO73 CNO32 Some models do not correspond to target products depending on the year of production 4 8 PCB and Functions 2 Indoor Unit Control PCB 2 3 XM Type for CR S 12MY1U6 POW XM075XH EXCT CNO73 POWER LED ohh ke FILTER D002 ag 5 sel lt CNO70 ma D CNO62 S20 HEATER DISP CN340 CNO63 gt NE T10 CNO61 E z 0 Parmi TEST SMN 5 OPTION i CNO64 Wy CNO60 8 JPOO1 Sn gt 1 SD bers a mid T Ioi gelu fo 4 EEPROM 3 memory IC xs JEG a n Vg HEF oe i 123 4 158 Ve 158 de gt ihe x 3 80Z9 8702 FAN DRIVE JP003 CNO32 a 2 EMG OC CNO40 CNO44 CR XMHX1252 POW XM075XH Some models do not correspond to target products depending on the year of production 2 Indoor Unit Control PCB 2 4 CR1 for CR KR74GXH56A S 07MK1U6 S 12MK1U6 Wall Mount
51. NV H08 Compressor 2 constant speed H27 Fusing of electromagnetic contact Current detected when compressor was OFF A only blinking Automatic backup operation Outdoor unit protection Low pressure trouble H06 No display changes lt lt gt gt alarm indication Does not affect the operation of other indoor units lt gt alarm indication In some cases may affect the operation of other indoor units Trouble Diagnosis 2 Outdoor Unit Control PCB LED Display O ON xt Blinking OFF LED RED Display meaning After the power is turned ON and automatic address setting is not in progress no communication with the indoor units in that system is possible After power is turned ON and automatic address setting is not in progress 1 or more indoor units are confirmed in that system however the number of indoor units does not match the number that was set Automatic address setting was completed successfully After the power is turned ON and automatic address setting is not in progress the number of detected indoor units connected to that system matches the number that was set and regular communications are occurring Automatic address setting is in progress At time of automatic address setting the number of indoor units did not match the Both blinking number that was set Alarm display LED 1 blinks M times then LED 2 blinks N times The cycle then repeats Blinking alternately M 2 Palar
52. No 3 3 N 3 On the outdoor main unit control PCB check that the system address rotary switch S002 is set to 1 and that the DIP ON ON switch S003 is set to 7 O These are the settings at the time of factory shipment 1 21 OFF 4 To set the number of indoor units that are connected to the outdoor unit to 10 on the outdoor main unit control PCB set the ON ON No of indoor units DIP switch S005 to E 1 and set the rotary switch 5004 to 0 1 2 3 OFF 5 Turn ON the power to the indoor and outdoor units On the outdoor main unit control PCB short circuit the automatic address pin CN100 for 1 second or longer then release it l Communication for automatic address setting begins To cancel again short circuit the automatic address pin CN100 for 1 second or longer then release it The LED that indicates that automatic address setting is in progress turns OFF and the process is stopped Be sure to perform automatic address setting again Automatic address setting is completed when LEDs 1 and 2 on the outdoor main unit control PCB turn OFF l 7 Operation from the remote controllers is now possible To perform automatic address setting from the remote controller perform steps 1 to 5 then use the remote controller and complete automatic address setting amp Refer to Automatic Address Setting from the Remote Controller 1 6 Test Run 3 Auto Address Setting
53. Panasonic TEST RUN SERVICE MANUAL 410 U 72MF1U9 U 72MF1U9E U 96MF1U9 U 96MF1U9E IE NTATIVE SWAY VRF SYSTEM SANYO mod Pene mene Model No Outdoor Units Class 72 96 U 72MF1U9 U 96MF1U9 U 72MF1U9E U 96MF1U9E Refrigerant R410A is used in the outdoor units Salt Air Damage Resistant Specifications Model Name Indoor Units 4 Way Cassette S 18MU1U6 S 24MU1U6 S 36MU1U6 4 Way Cassette 60x60 S 18MY1U6 sof Jo 1 Way Cassette 5 07MD1U6 S 09MD 1U6 S 12MD1U6 Low Silhouette Ducted S 07MF1U6 S 09MF1U6 S 12MF1U6 S 15MF1U6 S 18MF1U6 S 24MF1U6 S 36MF1U6 S 48MF1U6 S 54MF1U6 po S 36ME1U6 S 48ME1U6 Ceiling S 12MT1U6 S 18MT1U6 S 24MT1U6 Wall Mounted S 07MK1U6 S 09MK1U6 S 12MK1U6 S 18MK1U6 S 19MS1U6 S 24MK1U6 Floor Standing S 07MP1U6 S 09MP1U6 S 12MP1U6 S 15MP1U6 S 18MP1U6 S 24MP1U6 Seca as S 07MR1U6 S 09MR1U6 S 12MR1U6 S 15MR1U6 S jamrius js 24MR1U6 Necessary to install the External Electronic Expansion Valve Kit Optional CZ P56SVK1U 85464849302000 REFERENCE NO SM830202 00 Slim Low Static Ducted 5 07MM1U6 S 09MM1U6 S 12MM1U6 S 15MM1U6 S 18MM1U6 High Static Pressure Ducted IMPORTANT Please Read Before Starting This air conditioning system meets strict safety and operat ing standards As the installer or service person it is an important part of your job to install or service the system so it operat
54. Simple Setting Items Setting data Item code No Des ription O 0000 Not displayed 0001 150 hours Filter sign ON time 0002 2 500 hours filter lifetime 0003 5 000 hours 0004 10 000 hours 0005 Use the filter clogging sensor l 0000 Standard setting at time of shipping Degree of filter fouling 0001 Highly fouled Filter sign ON time is reduced to one half the set time 0001 Central control address 1 0002 Central control address 2 0003 Central control address 3 0064 Central control address 64 0099 No central control address set setting at time of shipping Operating mode 0000 Normal setting at time of shipping priority change 0001 Priority Ponty P CompressorON Compressor OFF o ess gr Electric heater 0000 No heater Heater installed Humidifying when 0000 No setting at time of shipping heater thermostat is Change to remote 0000 Thermostat OFF differential 2 F setting at time of shipping controller sensor thermostat differential 0001 Thermostat OFF differential 1 F Cooling Heating 0000 _ Permit Auto mode Prohibit Mode 0000 Normal dependency Follow to main indoor unit operation mode Cooling only ne Cooling only 3 Timer Remote Controller 3 16 Detailed Settings Functions e This allows the system address indoor unit address and other settings to be made for the individual or group control indoor unit to which the r
55. _ button Changes the operation mode after the sleeping function operation is cancelled Remote Control Functions 3 Timer Remote Controller 3 14 Wired Remote Controller Test Run Settings 1 Press the remote controller button for 4 seconds or longer 2 TEST appears on the LCD display while the test run is in progress 3 Then press the button The temperature cannot be adjusted when in Test Run mode This mode places a heavy load on the machines Therefore use it only when performing the test run The test run can be performed using the HEAT COOL or FAN operation modes The outdoor units will not operate for approximately 3 minutes after the power is turned ON and after operation is stopped f correct operation is not possible an error code is displayed on the remote controller LCD display Refer to Table of Self Diagnostic Functions and correct the problem 4 After the test run is completed press the button again Check that TEST disappears from the LCD display To prevent continuous test runs this remote controller includes a timer function that cancels the test run after 60 minutes The operation is possible even if the cassette type ceiling panel has not been installed PO9 display does not occur Remote Control Functions 3 Timer Remote Controller 3 15 Simple Settings Function e This allows the filter lifetime operating mode prior ity change central control address and ot
56. adjusted when in Test Run mode This mode places a heavy load on the machines Therefore use it only when performing the test run 2 The test run can be performed using the HEAT COOL or FAN operation modes The outdoor units will not operate for approximately 3 minutes after the power is turned ON and after operation is stopped 3 If correct operation is not possible a code is displayed on the remote controller LCD display Refer to Table of Self Diagnostic Functions and correct the problem 4 After the test run is completed press the button again Check that TEST RUN disappears from the LCD display To prevent continuous test runs this remote controller includes a timer function that cancels the test run after 60 minutes If the test run is performed using the wired remote controller operation is possible even if the cassette type ceiling panel has not been installed PO9 display does not occur 1 12 Test Run 5 Caution for Pump Down 5 Caution for Pump Down Pump down means refrigerant gas in the system is returned to the outdoor unit Pump down is used when the unit is to be moved or before servicing the refrigerant circuit This outdoor unit cannot collect more than the rated refrigerant amount as shown by the nameplate on the back If the amount of refrigerant is more than that recommended do not conduct pump down In this case use another refrigerant collecting system 1 13 6 Meani
57. an operated by remote controller l 0000 Not used Body sensor is used Wired remote controller sensor De EE ure conio 0000 Discharge temperature control OFF i 0001 Discharge temperature control ON RAP valve 0000 RAP valve control OFF 0001 RAP valve control ON 0013 Control temperature 55 F Heat exchanger temperature 0014 Control temperature 57 F jr Heat exchanger control point for control to prevent cold air 9025 Control temperature 77 F 0026 Control temperature 78 F Output linked with fan ON when indoor unit fan is 0000 operating Drain pump delayed start time Fan output switching 0060 60 sec delayed start Humidifier setting Humidifier output ON Drain pump operates for 1 minute 0002 when total humidifier operating time reaches 60 minutes 0003 Humidifier output ON Drain pump stopped 0000 Standard setting Draft reduction mode Flap swing lower limit position is upwards Flap operation mode 0001 2 36 Remote Control Functions 3 Timer Remote Controller Item Setting data eee Description 0000 Smudging reduction mode Flap swing upper limit position is shifted downwards Normal mode 0001 0002 Draft reduction mode Flap lower limit position is shifted shifted upwards DC fan tap operating mode 0000 Standard Standard setting at time of shipping High ceiling use High ceiling setting 1 with standard panel For low
58. and D are displayed alternately The example here 000 410 indicates R410A wu CODE NO i Outdoor unit capacity Parameter Description SET DATA 0 Disabled 224 72 Type 280 96 Type 6 10 MEMO 201201
59. and 2 for compressor 1 pins 4 and 5 for compressor 2 and pins 7 and 8 for compressor 3 is open Correction 1 Connect the connector 2 Correct the connection at connector pins 4 and 5 Example Notes PG Trouble Diagnosis 3 W 3WAY VRF Alarm Codes H11 H12 Alarm Alarm meaning H11 Compressor 2 constant speed overcurrent alarm H12 Compressor 2 constant speed lock current alarm Alarm conditions H11 During operation the compressor current value exceeded 23 1 A for 30 seconds or longer However this alarm is not detected for 4 seconds after the compressor starts H12 During operation the compressor current value exceeded 27 3 A for 4 seconds or longer However this alarm is not detected for 2 seconds after the compressor starts Probable cause 1 Compressor failure locked or partially locked 2 CT Current Transformer circuit failure including cut wiring 3 Missing power phase 4 Low power voltage 5 PCB failure Check 1 Compressor failure partially locked Trouble Current value during operation greatly exceeds the value shown above Check When the current for each phase is measured with a clamp meter or similar instrument check that the current value for all phases is not high If MG was forced ON use caution check that compressor noise will not occur or the compressor will not run with a groaning sound 2 CT circuit failure PCB failure Trouble Check Check for poor connector contact
60. are called pre trip After pre trip occurs if the low pressure sensor detects a pressure of 21 8 psi or more for 3 minutes of continuous operation the pre trip count is reset to O If the low pressure sensor detects a pressure of 23 2 psi or less continuously for 30 minutes when the compressor is stopped an alarm occurs immediately no pre trip Probable cause The unit low pressure has dropped to a level that does not occur under ordinary conditions 1 The absolute amount of gas in the system is too low as a result of insufficient refrigerant charge or leak 2 The refrigerant has accumulated in the circuit and has not returned to the compressor Refrigerant has accumulated in a location of one way flow and cannot escape High pressure level is low resulting in poor flow of refrigerant in the circuit A lower high pressure level results in a smaller difference between low pressure and high pressure that may be insufficient to cause refrigerant flow 3 The refrigerant circuit has become closed and refrigerant has not returned to the compressor In some cases when moisture enters the refrigerant circuit it can freeze at the low pressure locations and the resulting ice can block the circuit vr If the alarm occurs when there is sufficient refrigerant in the system 1 and 3 liquid refrigerant has definitely accumulated somewhere in the system Liquid refrigerant generally accumulates in high pressure locations In this case t
61. at pump air conditioner is used hs Sleeping Appears during the sleeping function A CAUTION Appears when the protective device is activated or when an abnormality occurs Unit No indication Indicates the unit No of the selected indoor unit TEST TEST indication Appears while in test operation Remote Control Functions 3 Timer Remote Controller 3 3 Installation Manual for Timer Remote Controller Accessories for remote controller switch Remote controller Wire joints Operation manual Installation manual E 3 4 How to install the Remote Controller Do not supply power to the unit or try to operate it until the tubing and wiring to the outdoor unit is completed Do not twist the control wiring with the power wiring or run it in the same metal conduit because this may cause malfunction Install the remote controller away from sources of electrical noise Install wiring correctly incorrect wiring will damage the equipment Install a noise filter or take other appropriate action if electrical noise affects the power supply circuit of the unit When wiring do not connect the remote controller wires to the adjacent terminal block for the power wiring Otherwise the unit will break down Use shielded wires for remote control wiring and ground the shield on indoor unit sides Fig 2 1 Otherwise misoperation due to noise may occur The mounting position for the remote controller sh
62. at the programmed PI fon BJU pa time and changes the temperature settings al EE L Press a vy to change the temperature setting attern 4 lt a E Pattern 4 ar SUL The indoor unit changes the temperature setting at PI e N the programmed time af A Press a yw to change the temperature setting Select the program pattern and press The program timer setting is confirmed and the unit enters the confirmation mode 7 4 If you press SA during the setting it returns to the program confirmation mode f there is no operation made for 3 minutes during the setting it returns to the normal mode In this case all the settings in progress will be invalid Remote Control Functions 3 Timer Remote Controller amp Deleting the Program Timer To delete the program timer setting follow the steps below 1 Press Prosa to enter the program confirmation mode 2 Press v to select the day of the program you want to delete 3 Press v to select a TIMER No from 1 to 6 4 Press si to display the program setting mode F SETTING TIMER No SU Mo Ty We Th Je aR ER 5 Press to delete the program After deleting the unit returns to the program confirmation mode r amp If you press lt during the setting the unit returns to the program confirmation mode If there is no operation made for 3 minutes during the setting the unit returns to the normal mode
63. ayed matches the signal receiver s address The buzzer always sounds if ALL appears as the address display If ALL appears as the address display operations can be performed irrespective of the signal receiver s address Point the wireless remote control unit at the signal receiver of the unit to be operated and send the signal Wireless remote control unit s address setting 1 When the ADDRESS button is held down for 4 or more seconds lights on the wireless remote control unit s display and the current address blinks 2 Each time the ADDRESS button is now pressed the address changes by one setting in the following sequence ALL gt 1 2 gt 3 6 gt ALL Select the setting which matches the setting of the address switch in the operation area of the indoor unit to be operated 3 When the SET button is now pressed the address stops blinking and lights instead and it remains on the display for 5 seconds The buzzer sounds if the setting matches the setting of the address switch in the operation area of the indoor unit When the batteries are replaced the address setting returns to ALL Remote Control Functions 2 Wireless Remote Controller Wireless remote control unit address displays X type The address switch For positions 1 2 and 3 set the Position of in the operation knob to the left conversely for 4 5 address switch on area may be set to and 6 set the knob to the right signal
64. be used to monitor the outdoor unit alarm history monitor the various indoor and outdoor temperatures and check the indoor unit connection status PROGRAM number of units operating mode etc EN NOTE 4 Outdoor unit maintenance remote controller does not function as an SET EEN ordinary remote controller It is therefore only used for test runs and during servicing System Diagram Outdoor unit maintenance remote controller don Inter unit control wiring Special service checker wiring o T LL Outdoor unit a i control PCB naoor unl ndoor uni Remote controller Assy g PROGRAM GEC Ic Remote Remote l controller controller Operation manual included in package amp The special service checker wiring is required in order to connect the outdoor unit maintenance remote controller to the outdoor unit PCB amp Ordinary remote controllers or other controllers are still required for the indoor units even when the outdoor unit maintenance remote controller is connected 1 2 Functions M Functions on the ordinary display 1 Press the buttons to execute the following functions e All indoor units stop start e Cooling heating change e All indoor units test run 2 Display The following displays are possible e Alarm display e No of indoor outdoor units e Unit Nos of connected indoor outdoor units e Operating status of indoor
65. ch red 10 20 30 gl RE 4 1 unit factory setting All OFF SN Set to 1 ON ON KE 9 ON ON KT 0 21 units 2 ON KA ax Setto 1 ON ON KZA 8 31 units 3 ON SS Set to 1 on a ON 0 40 units 1 amp 3ON R er Set to 0 Examples of refrigerant circuit R C address settings required when link wiring is used 5003 S002 System address S003 System address S002 System address No 2P DIP switch blue Rotary switch er ON ON KA System 1 factory sett Both OFF 9 G Set to 1 ystem 1 factory setting a kA as ON ON a KZ 0 System 21 20 x Set to 1 A AON 2 E System 30 1 amp 2 ON oe Set to 0 Examples of the No of outdoor units settings S006 Outdoor unit setting S006 No of outdoor units 3P DIP switch blue Address setting of main outdoor unit S007 A Address setting of outdoor unit S007 Unit No setting 3P DIP switch blue Unit No 1 main unit T yh 3 factory setting m Ad amp Address setting of sub outdoor unit i Address setting of outdoor unit S007 Eni NO SEUNG 3P DIP switch blue Unit No 2 sub unit ON T factory setting on oe Unit No 3 sub unit 1820n BR 2 1 ON 0 V OFF 3 The sub unit control PCB contains the same switches as the main unit control PCB for No of indoor units No of outdoor units and system address However it is not necessary to set these switches Test Run 3 Auto Address Setting 3 1 Auto Add
66. cially available ventilation fan Use a ventilation fan that can accept no voltage A contact as the external input signal Examples of wiring Lead wire with 2P plug special order part WIRE K 623 162 4435 DC 12V Relay field supply FAN DRIVE 2P plug To external control input white terminal on ventilation fan Indoor unit control PCB The length of the wiring from the indoor unit control PCB to the relay must be 2 5 ft or less PCB and Functions 2 Indoor Unit Control PCB OPTION 6P white Outputs external signals as shown in the figure below CNO14 Relay DC 12V field supply Note Fan signal Heat start signal DC 12V Cool start signal viol alafo feed OS ES a Indoor unit control PCB CR1 Thermostat signal Defrost signal The relay must be installed at a distance of 6 5 ft or less from the PCB PCB and Functions 2 Indoor Unit Control PCB 2 8 Explanation of Functions CR KXRP56AN CR KXRP80AN POW KRP50A T10 6P flag yellow Used for remote control CN105 Control items Start stop input Remote controller prohibit input for remote control Start signal output Alarm signal output EXCT 2P plug red Can be used for demand control When input is present forces the unit to CNOO9 oparate with the thermostat OFF Examples of wiring Lead wire with 2P plug special order part WIRE K 623 174 4263 Relay field supply EXCT Rel il si
67. code The item codes and setting data are shown in the table below 3 Press the timer time 4 and v buttons to change the setting data b r N To confirm the changed setting data press the SET button At this time the SET DATA display stops blinking A and B are displayed alternately and remains lit Gaia blinks when this mode is engaged and H appears in the outdoor unit address section The item code number values shown in the table below and the corresponding setting data 6 dig its are also displayed The 6 digits of the setting data are displayed by changing between the first 3 digits Fig A and the last three digits Fig B When the first 3 digits are displayed the top dot of the colon is illuminated 5 To exit setting mode press the CHECK button Description SET DATA 0000 Sensor input not present Control is performed 0001 Sensor input present Control is performed 0002 Sensor input not present Control is not performed 0003 Sensor input present Control is not performed 0000 Disabled 0001 Quiet mode 1 Outdoor unit fan Quiet mode 0002 Quiet mode 2 0003 Quiet mode 3 0004 Quiet mode 4 0000 Heat pump 0001 Cooling 0000 0 0001 40 0004 70 0007 100 0008 120 AmA VEE 0009 140 0010 160 0011 200 0012 1 no limit 0000 0 0001 40 0004 70 0007 100 0008 120 Snowfall sensor usage Cooling Service Ch
68. completely disconnected or the wire is cut In these cases alarm Hx3 occurs e Current of 7A or higher was detected although the compressor was stopped or a higher current was detected at occasional intervals e The compressor continues to operate at a time when the outdoor unit should be stopped such as when all indoor units are stopped Check whether or not 208 230 V is output from the PCB to the magnet SW If the voltage is output there is a PCB failure 3 Installation error e CT1 connector is connected to the compressor 2 side e CT1 circuit is connected to the compressor 2 side e CT2 connector is connected to the compressor 1 side e CT2 circuit is connected to the compressor 1 side Correction 1 Replace the CT circuit 2 Replace the magnet SW 3 Replace the PCB If the above probable causes are not the cause of the alarm it is possible that in rare cases the alarm may be caused by the effects of noise See notes Nes MEMO Contents TE N TA E T V E PCB and Functions 4 PCB AND FUNCTIONS 1 Outdoor Unit Control PC B usann 4 2 1 1 Outdoor Unit Control PCB CR U 96MF1U9 nrnnnnnranervnnnvnranrevnnnrnvnnrennnnrennnnrnnnnnennnnnennnn 4 2 1 2 Outdoor Unit Filter PCB FIL CHDX1 4058 rarnrnnnrrvnranenvnnnvnranrrnnnnnnvnnnrnnnnsnnnnnrnnnnnrnnnnsnnnnn 4 3 1 3 Outdoor Unit HIC Board HIC CHDX14053 rrrvnnnrnvvnnnrvvnrnrnrvnnnnnennnnrrennnnsrennnnnensvnnnennnnr 4 3 1 4 Functions for CR U 96MF1U9 EE 4 4
69. controlled by the timer D Standby lamp e This lamp lights at the following times during heating operations When operation has started when the thermostat has been activated during defrosting operation e The lamp blinks when trouble has occurred E Emergency operation This is used when operation cannot be performed due to trouble with or loss of the wireless button remote control unit F ADDRESS switch This switch is used in order to prevent the sending of signals to the wrong indoor unit when a multiple number of indoor units that can be operated by the wireless remote control units have been installed in the same room Gi SWING button When this button is pressed the airflow sweeps up and down automatically H FILTER lamp This lamp lights to indicate that it is time to clean the filter e If two beeps are heard the operation lamp among the indication lamps has lighted and the timer lamp and standby lamp blink alternately In cases where heat pump models are used this indicates a Cooling Heating mode mismatch and as such operation in the desired mode cannot be performed The same beeps will be heard and the same operation lamps will light when auto cooling heating has been selected on a model which does not have the auto cooling heating function e When local operation has been set to disable because the centralized control mode is established for instance pressing the ON OFF operation button MODE button or temperature setting
70. cuit 3 Repair the power circuit 4 Adjust the primary side power Repair the power wiring 5 Replace the outdoor unit PCB 6 Correct the trouble In the case of a compressor failure it is likely that steps must be taken to correct the cause of the compressor failure Such as liquid back up in order to prevent recurrence Be sure to check that there is no cause which may result in compressor locking ample S SS Trouble Diagnosis 3 W 3WAY VRF Alarm Codes H15 Alarm Alarm code H15 Compressor 2 discharge temperature sensor DISCH2 disconnected Alarm conditions e This alarm occurs when the discharge sensor temperature detector is not inserted into the tube s sensor holder or when the sensor itself has suffered some kind of malfunction other than a cut wire e When outdoor air temperature is 32 F or higher Alarm occurs if the temperature detected by the discharge sensor has changed by less than 4 deg when the compressor has operated for 10 minutes immediately after start e When outdoor air temperature is below 32 F Alarm occurs if the temperature detected by the discharge sensor has changed by less than 4 deg when the compressor has operated for 30 minutes immediately after start Probable cause 1 Discharge sensor temperature detector is not inserted into the tube s sensor holder 2 Discharge sensor itself has suffered some kind of malfunction other than a cut wire Check 1 Check that the discharg
71. cumulator of the stopped outdoor unit e After an outdoor unit stops there is the sound of refrigerant flowing into an outdoor unit that was stopped for a long time e When an outdoor unit starts after being stopped for a long time the start is accompanied by much vibration Check In some cases leakage may be occurring from the evaporator mechanical valve or mechanical valve 3 at a stopped outdoor unit 7 Sensor failure Check This alarm is likely to occur when wiring is partially cut It is difficult to identify even when continuity is checked The detected discharge temperature is high e Although such conditions rarely occur a P02 alarm is likely if the detected discharge temperature is low e Replace the sensor with another discharge sensor and compare the temperature conditions Continued Trouble Diagnosis 3 W 3WAY VRF Alarm Codes Correction 1 Replace the sensor 2 Replace the outdoor unit PCB 3 Correct the problem locations All of the probable causes Notes Operates continuously for a set length of time Indicates 2 5 minutes or longer for an inverter compressor compressor 1 and 30 seconds or longer for a constant speed compressor compressor 2 Trouble Diagnosis 3 W 3WAY VRF Alarm Codes P04 Alarm High pressure switch activated Alarm meaning Alarm conditions Probable cause When the electrical circuit of the high pressure switch is activated then depending on the pressure the te
72. d Can be used for demand control When input is present forces the unit to operate with the thermostat OFF Examples of wiring Lead wire with 2P plug special order part WIRE K 623 174 4263 Relay field supply EXCT Rel il Signal 2P plug red elay coil signa Indoor unit control PCB The length of the wiring from the indoor unit control PCB to the relay must be 6 5 ft or less 2P plug white Short circuiting this plug allows the unit to be operated by the remote controller even if it is not connected to an outdoor unit In this case alarm E04 which indicates trouble in the serial communication between the indoor and outdoor unit does not occur 2P plug white Test pin Short circuiting this plug allows the operation of the indoor fan motor high and flap motor F1 position to be checked However this test operation stops if the indoor unit protection mechanism is activated The unit can be operated even if the remote controller and outdoor unit are not connected However even if the remote controller cannot be connected it cannot be used to operate the unit This function can be used for short term tests Jumper wire Allows selection of the T10 terminal start stop signal Status at shipment Pulse signal Jumper wire cut Static signal continuous signal 2P plug white This terminal sends a signal to the ventilation fan when the FAN button on the wired remote controller is used to operate a commer
73. de MIME hour minute and item flash on the display 2 Set the hour program step 1 Press 2 7 to set the hour 2 3 4 1 525354 4 Confirm the hour and press The enters the pro gram changing mode 7 setting of the minute 3 Set the minute program step 2 Program step1 Press 4 7 to set the minute sen 3 Mo Tu We Th Fr Sa Confirm the minute and press f The unit enters 73 po z HRE Jim the program pattern selection mode AR SETTING p TIMER No Su Mo Tu We Th Fr 9a MH I3 54515457 FE Om a LEDE ZII X normal remote controller PROGRAM CANCEL SET H 4 Changing hour digits SET Program Hr Changing minute digits reat C SETCANCELDEL hanging patterns v PROGRAM Z 4 Selecting copy source SET 55 Selecting copy destination SET CANCEL Remote Control Functions 3 Timer Remote Controller 4 Setthe program pattern program step 3 Pattern 1 There are 4 program patterns ER No Su Mo Tu We Th Fr a HI 3 TI Lm 080 Pressing v repeats the following display patterns Pattern 1 The indoor unit starts operation at the programmed time ateme vt DO Ga Su Mo Tu We Th Fr Sa fir hom Pattern 2 The indoor unit stops operation at the programmed time er tt Pattern 3 am A A Wen E wa The indoor unit starts operation
74. del S MU Field supply ML I amet CN340 Model S MY A Wg S R Mi i a NE pi YAH Part code 623 312 1390 MA SAN TEN EN340 q x Se MGS Field supply i Field supply CN340 1 Part code i 623 312 1390 Model S MM gt 7 tj EN IG ba dn dd nd nd nd do e Part code 623 312 1390 i am Sm i CN340 O E 3 Field supply MEMO C TE N TA E T V H Self Diagnosis Function Table ontents 5 SELF DIAGNOSIS FUNCTION TABLE 1 Self Diagnosis Function Table sr sdeuuccndedeedeeoans 5 2 5 1 1 Self Diagnosis Function Table 1 Self Diagnosis Function Table Self Diagnosis Function Table e Causes and corrections in instances when automatic address setting cannot be started Trouble Cause and correction The power LED D53 on the outdoor unit control PCB does not turn ON LED 1 and 2 on the outdoor unit control PCB do not turn OFF when the outdoor unit power is turned ON and automatic address setting cannot be started An alarm appears immediately when automatic address setting is started from the wired remote controller Check for any errors in the power wiring to the outdoor unit and check fo
75. dress is not set xt Capacity code of indoor unit is not set lt lt L09 gt gt Duplication of outdoor system address setting Capacity code of outdoor unit is not set Mismatch of outdoor unit type L17 Indoor coil temp sensor E1 Indoor coil temp sensor E3 LO7 simultaneously ex Operating and heating ready lamps blinking simultaneously HiO X lt lt FO1 gt gt lt lt F03 gt gt Operating and timer lamps blinking alternately Indoor suction air room temp sensor TA lt lt F10 gt gt Indoor discharge air temp sensor BL lt lt F11 gt gt see Continued Trouble Diagnosis 1 Contents of Remote Controller Switch Alarm Display ON O Blinking X lt OFF Wired remote control display Wireless remote controller receiver display Possible cause of malfunction Operation Standby for heating fault Compressor 2 constant speed discharge temp sensor Thermistor Outdoor unit Compressor 1 INV discharge temp sensor Outdoor air temp sensor Heat exchanger 1 liquid temp sensor F07 operating and timer lamps blinking alternately Compressor intake temp sensor suction temp xx xy Heat exchanger 1 gas temp sensor High pressure sensor Heat exchanger 2 liquid temp sensor Low pressure sensor Heat exchanger 2 gas temp sensor Ceiling panel connection failure lt lt P09 gt gt EEN Protective Indoor
76. e battery cover control unit removed Before use check that the slide switch has been set to the position shown in the figure above For details on how to set the slide switch consult your dealer How to install 1 Slide the cover in the direction indicated by the arrow and batteries remove it 2 Install two AAA alkaline batteries Make sure the batteries point in the direction marked in the battery compartment 3 Use a pointed implement to press the ACL button The batteries last about a year depending on how much you use the wireless remote control unit Replace the batteries when the wireless remote control unit s display fails to light or when the remote control cannot be used to change the air conditioner s settings When the batteries are to be replaced make sure that both batteries are new and that the same kind of battery is used Remove the batteries if the wireless remote control unit is not going to be used for a prolonged period Dispose of the used batteries at the designated location button Cover How to use the e Point the wireless remote control unit s transmitter at the signal receiver If the signal is wireless remote received properly a beep is heard Two beeps are heard only when operation starts up control unit e Signals can be received over a distance of approximately 26 ft This distance is approximate it may be slightly more or less depending on how much charge remains in the batteries and on other
77. e temperature sensor is inserted into the sensor holder 2 Check that sufficient heat conducting putty is applied 3 Remove the discharge sensor from the sensor holder and expose the sensor to the outside air for approximately 5 minutes Check that the temperature detected by the sensor changes to match the outside air temperature However the sensor cannot detect temperatures at or below 32 F 1 Install the sensor into the holder and apply sufficient heat conducting putty 2 If the sensor is malfunctioning replace it PExample Notes The discharge temperature sensor is generally a sensor intended for accurate detection of high ee temperatures Therefore it will not accurately detect the temperature if the temperature at the measurement point is 68 F or below Trouble Diagnosis 3 W 3WAY VRF Alarm Codes H07 Alarm Alarm meaning No oil alarm Alarm conditions This alarm occurs when oil does not flow for a specified amount of time in tubing where oil flow constantly The presence of oil is detected by a temperature sensor Judgment method Tcal calculated by the formula below from the oil temperature is compared with the discharge temperature If Tcal is higher than the discharge temperature then oil is judged to be present If Tcal is lower than the discharge temperature oil is judged to be not present Tcal 0 0254 T_oil LP 0 0298 T_oil LP 0 8842 T_oil 2 9953 LP 11 091 LP 436 94 2 995
78. ead values do not match after writing to non volatile memory is complete Memory was not inserted after the PCB was replaced The lifetime of the non volatile memory has been reached Non volatile memory is installed incorrectly wrong direction bent pins etc Check Correction J o Example 190 nes S 1 2 Probable cause 1 2 3 1 H03 H13 Alarm Alarm code Alarm meaning H03 Compressor 1 CT sensor disconnected or short circuit H13 Compressor 2 CT sensor disconnected or short circuit Alarm conditions Compressor 1 Current value of more than 18 0 A is detected while the compressor 1 is stopped Compressor 2 Current value at compressor 2 is less than 2 0 A when 2 seconds or more had passed after the compressors began operation and output No current is detected even though the compressors are operating Probable cause CT circuit failure including cut wiring etc Disconnected CT circuit connector Missing phase where CT circuit is connected This CT circuit is connected to the connector of the other CT circuit PCB failure CT circuit failure PCB failure Trouble Current value during compressor operation is below the threshold value Check Check that the connector is not disconnected e Check the continuity of the CT circuit e Install a normal CT in place of this CT and check If current is detected then the PCB can be judged OK CT circuit failure e Check that current is flowing
79. echanical valves 3 Outdoor unit PCB failure e The check items are the same as for a high pressure sensor malfunction A normal PCB is needed to determine whether the problem is a PCB failure or a pressure sensor malfunction If an abnormality was found at the check items for a high pressure sensor malfunction first try replacing the PCB and check again Trouble is corrected Outdoor unit PCB failure Trouble is not corrected High pressure sensor malfunction Correction 1 Replace the high pressure sensor Caution Because the high pressure sensor connection employs a Schrader type valve it can be removed and replaced However the high pressure sensor can be easily damaged by high voltage therefore use sufficient caution with regard to static electricity 2 Replace the PCB 3 Correct the locations of problems in the refrigeration cycle Correct locations where clogging or leakage has occurred In the case of over charging recover refrigerant Adjust the amount of refrigerant Guide for over charging Be sure to connect the gauge to the high pressure pressure outlet when checking for over charging During cooling The following does not apply when outdoor air temperature is low or when fan speed is controlled When both compressor 1 and compressor 2 are operating and the fan mode is 14 maximum fan speed then the high pressure saturation temperature should be approximately 15 C above the outdoor air temperature If it
80. ecker 1 Outdoor Unit Maintenance Remote Controller m Setting mode 2 1 Press the CHECK button SET SETTING button and the 8 CANCEL button simultane oll f ously for 4 seconds or longer a 2 Press the temperature setting Ca JandC v gt buttons to change the item code The item codes and setting data are shown in the table below 3 Press the timer time 4 and v buttons to change the setting data SET DATA REMOTE CONTROLLER To confirm the changed setting data press the SET button At this time the SET DATA display stops blinking and remains lit 4 Mu blinks when this mode is engaged and when this mode is engaged Now Setting is dis C Display of first 3 digits played blinking and the address of the outdoor unit that is being set System XX YY System XX System address YY Outdoor unit address the item code No values from the table below and the corresponding settings data 6 digits are displayed The item code number values shown in the table below and the corresponding setting data 6 digits are also displayed The 6 digits of the setting data are displayed by changing between the first 3 digits Fig C and the last three digits Fig D When the first 3 digits are displayed the top dot of the colon is illuminated 5 To exit setting mode press the CHECK button Returns to normal display mode O maA zi H h Refrigerant type C
81. ecting socket 3P black is attached to the terminal plug at the time of shipment from the factory In the case of link wiring which combines the inter unit control wiring for multiple systems into a single communications circuit leave the connecting socket in place at only one of the outdoor units and move the socket from the SHORT side to the OPEN side at all other outdoor units If multiple connecting sockets are left in place communications trouble will occur LED red x 2 e LED 1 and 2 blink alternately while automatic address setting is in progress e Display the alarm contents for alarms which were detected by the outdoor unit Power LED D53 Run CN103 Stop CN104 AP CN102 Mode CN101 Test CN022 LED red Power indicator Indicates the DC 5V power on the outdoor unit control PCB 2P plug white Start pin Short circuit this pin and apply a pulse signal to start all indoor units in that refrigerant system 2P plug white Stop pin Short circuit this pin and apply a pulse signal to stop all indoor units in that refrigerant system 2P plug white Vacuuming pin e To perform vacuuming of the outdoor unit short circuit this pin and then turn the power ON All solenoid valves turn ON and vacuuming begins smoothly Do not perform automatic address setting at this time e Release the short circuit to return the unit to normal status 2P plug white Indoor unit Heating Cooling mode chan
82. ector 2P yellow which was supplied with the accessory to the correct connector pin on the indoor unit control PCB according to the setting number which was confirmed in Table 1 Table of DC Fan Motor Tap Settings e If the setting No is 1 then connect the jumper connector to the connector pin TP1 2P red on the indoor unit control PCB e f the setting No is 3 then connect the jumper connector to the connector pin TP3 2P yellow on the indoor unit control PCB White Yellow Red HEL TP6 TPS TP1 T cc E arier TD 0 io mnaRGtT Hi o amp Suspended type lt Procedure gt Stop the system before performing these steps 1 Open the electrical component box cover then check the indoor unit control PCB 2 Connect the jumper connector 2P yellow which was supplied with the accessory to the correct connector pin on the indoor unit control PCB according to the setting number which was confirmed in Table 2 Table of DC Fan Motor Tap Settings e f the setting No is 1 then connect the jumper connector to the connector pin TP1 2P red on the indoor unit control PCB e f the setting No is 3 then connect the jumper connector to the connector pin TP3 2P yellow on the indoor unit control PCB amp 1 way Air Discharge Semi Concealed type lt Procedure gt Stop the system before performing these steps 1 Open the electrical component box cover then check the indoor unit contro
83. ed IPM trip IPM current or temperature H31 Inverter for compressor is unusual DC compressor does not operate P29 Thermistor fault Indoor thermistor is either open Indoor coil temp sensor E1 lt lt F01 gt gt greener Indoor coil temp sensor E3 lt lt FO3 gt gt Indoor suction air room temp sensor TA lt lt F10 gt gt Indoor discharge air temp sensor BL lt lt F11 gt gt Outdoor thermistor is either Comp No 1 INV discharge gas temp sensor DISCH1 F04 pele gamaged Comp No 2 constant speed discharge gas temp sensor DISCH2 F05 Outdoor No 1 coil gas temp sensor EXG1 FO6 Outdoor No 1 coil liquid temp sensor EXL1 FO7 Outdoor No 2 coil liquid temp sensor EXL2 F24 EEPROM on indoor unit PCB failure F29 Protective Protective device for EEPROM on the main or sub outdoor unit PCB has failed F31 eo is pet ag NONE Current is not detected when comp No 1 INV is ON HO3 activated Protective device for Overload current is detected H11 tee speed is activated Lock current is detected H12 Current is not detected when comp No 2 constant speed is ON H13 Discharge gas temperture of comp No 2 constant speed is not H15 detected Low oil level alarm HO7 Oil sensor fault Comp No 1 INV oil sensor H08 H27 Disconnection etc Comp No 2 constant speed oil sensor Continued 1 15 Test Run 6 Meaning of Alarm Messages Alarm messages displayed on
84. ed CHK test pin DISP pin TRANS S plug oe L25V 0 5A4 Egnet baam 18 f ad re see 5 pa HV z i F LJ E y A gt Ja ke JE A ANAN e Vo I A Z0004 r i E i TA ear Fr os i i 3 onl J L me J ad or a RALLILLEE J s p MM FANDRIVE MM ed v 8 4 en FAN DRIVE plug AN T i ii S N PL sa R037 aa s 4 R039 R HI see eocccoooveovssedpocad fr J F AA P Af n oA ae As ml 49 soon Fl i ft jijijiji e a p o c gt G e le l C fe if i i h Sa 206 geat 5 Noo ZOOND wa ROLE R047 aw RO4B4 TRLO PULSEZ 1 RED wrote Room temperature ACI Sik T10 plug F OPTION CNOIZ CR KA746XH56A 0 see ee ua ll gt cj SA pe ve 4 10 PCB and Functions If the fuse F002 has blown determine the cause and correct it Then change the socket from the OC plug to the EMG plug EMG plug OC plug Control circuit fuse F002 Power LED LD002 Microcomputer Nonvolatile memory IC Indoor heat exchanger E2 sensor Indoor heat exchanger E1 sensor PCB and Functions 2 Indoor Unit Control PCB 2 5 CR1 for CR KR254GXH56A S 18MK1U6 S 24MK1U6 Wall
85. eeceeeeeeseeeeeeseeseeseeeeeseeeeeeeas 2 4 22 NNN 2 7 NNN 2 8 2 4 Using the Wireless Remote Control Unit r rrrrrrnnnrrnrnnnrrnnnnnennnnnnennnnnrrnnnnnrennnnnennnnnnenn 2 9 2 5 Address AP enie 2 10 2 6 Emergency OPErati N EEE BE NN 2 12 Fe TONE PET OSS Leap pedgedslen 2 14 3 Timer Remote Controller osc cicircs acter ecu ecetede ct at tesa venta een 2 15 3 1 How to Use the Timer Remote Controller rrrvrnnnrvnrnnnnvvnnnnvnvrnnnvnvnnnnvnnnnnsnnvnnnennnnnnee 2 15 3 2 Names and Operations x ccierencderntirenitanvecesemegnetieianesdresenaienesninaaieanmaareetehenanaiatsgoadnentapesGarneniatigs 2 16 3 3 Installation Manual for Timer Remote Controller rrrnnrvrnnnnrvvnnnnnvvrnnnvernnnrrevnnnnennnnnne 2 18 3 4 How to Install the Remote Controller rrarrrrnnrrrrarrrnnnnnvrnnnernnnnrrannennnnnnnranennnnnennnnsen 2 18 3 5 Group Control Using 2 Remote Controllers rrrnrrrrrannnnnnnnnrrrrnnnvnrnnnnenrnnnrnnrnnnennnnnnee 2 19 3 6 Remote Controller Setting Mode rrrrnrnnnnrnnnnnnonnnnnrnnrnnnrnnnnnnennnnnnennnnnsennnnnsnnnnnsennnnnnee 2 19 FTV Set OGG isso ctescesaceemaemtaqenctescneceesanendenmeeeaeceeeneenecnasaancseguedceeacvennaoeeees 2 19 3 8 To Display the Sensor TEMPerature cccccecccceececeeeeeeeeeesseeeeseeeeseeceseeseeseeeetseeeeeas 2 19 3 9 To Display the Trouble History assis careers nto nema sere neo tansengemmcnesonemanor sence naneemesesanarsnees 2 19 3 10 Setting the Present TIME 2uu
86. emote controller 3 5 Group Control Using 2 Remote Controllers ME a 2 Connection wiring JAR It does not matter which of the 2 remote controllers you a for group control l l i set as the main controller When using multiple remote 2Pterminal i 1 gt controllers up to 2 can be used one serves as the base for remote main remote controller and the other as the sub remote control wiring controller Indoor unit No 1 5 Ground earth 3 6 Remote Controller Setting Mode To set the remote controller main sub setting or change the sensor follow the steps below Press both and SET buttons on the remote controller for more than 4 seconds together ET amp Select CODE No with Ca J 7 buttons UTE mor Change DATA with Ca C7 TIMER buttons re a far or Press ET Finally press A a do Clock display 24hours 12 hours aww DATA is memorized in the RCU DATA setting will not be changed even fA Rcu ck Rcu ck Noma when the power is turned off GA Room temperature sensor Main unit RCU Make sure to set Normal for RCU CK 3 7 Indoor Unit Setting Mode To select the ventilation setting or change the temperature unit follow the steps below Press buttons on the remote controller for more than 4 sec onds together Select CODE No with Ca J C 4 buttons Change DATA with Ca Cv J TIMER buttons Press SET Finally press DATA is
87. emote controller used for detailed settings is con nected When detailed settings mode is engaged opera tion stops at the individual or group control indoor unit where the remote controller used for detailed settings is connected Simple settings items can also be set at this time lt Procedure gt Press and hold the J and buttons simultaneously for 4 seconds or longer EGG unit No 1 or Ai in the case of group control item code 11 and settings data TH XX are displayed blinking on the remote controller LCD display At this time the indoor unit fan or all indoor unit fans in the case of group control begins operat ing 3 If group control is in effect press the button and select the address unit No of the indoor unit to set At this time the fan at the indoor unit begins operating Press the temperature setting Ca J Cv buttons to select the item code to change 6 Press the timer time 4 x buttons to select the desired setting data For item codes and setting data refer to the following page Press the button The display stops blinking and remains lit and setting is completed D Press the button to return to normal remote controller display No SET DATA Remote Control Functions Remote Control Functions 3 Timer Remote Controller List of Detailed Setting Items Item code Item No 1 Way Air Discharge 4 Way Air Discharge
88. emp Ba Comp discharge 1 temp Liquid temp sensor at heat exchanger 1 2 CT T3 Power LED D53 Gas temp and Liquid temp sensor at heat exchanger 3 CTL1 CTL2 o i Ree i ar app AA Ni Oil detection sensor P uT w a4 eenma Fh oa H a 6 Suction temp i Pr iA yh 1 f HIC2 Ho PCB and Functions 1 Outdoor Unit Control PCB 1 2 Outdoor Unit Filter PCB FIL CHDX14053 F Al Le fa Une f i FIL CHDX14053 1FA4B818100600 0 PCB ASSY Ell lt lt c 1 3 Outdoor Unit HIC Board HIC CHDX14053 CETE T are i a on T 27 He PI TK FAGBIB 4Ic cHpx14053 PCB AS 0 0 pg PCB and Functions 1 Outdoor Unit Control PCB 1 4 Functions for CR U 96MF1U9 Automatic address setting 2P plug white Automatic address setting pin CN100 e Short circuit this pin for 1 second or longer to automatically set the addresses at the indoor units that are connected to that outdoor unit and are within the same system The system address is 1 at the time of shipment Automatic address setting is necessary even for communications lines in a single system where the inter unit control wiring does not cross to any other systems While automatic address setting is in progress the 2 LEDs LED1 2 red on the outdoor unit control PCB blink alternately Short circuiting this pin while automatic address setting is in progress will stop the au
89. en the outing function is operated If operated using other remote control unit or a centralized control device such as a system control the outing function does not work 3 Timer Remote Controller 3 12 Outing Function Continued amp Setting the Outing Function 1 Press and hold T for more than 2 seconds to display the upper limit temperature setting screen T and the upper limit temperature start flashing The default value of the upper limit temperature is 99 F Press v to select the upper limit temperature and press SET to fix the value The lower limit temperature setting screen is displayed Press v to select the lower limit temperature and press SET to fix the value The outing function setting is completed The default value of the lower limit temperature is 50 F The unit returns to the normal mode if is pressed or there is no operation made for 3 I minutes during the setting In this case all the settings in progress will be lost amp Canceling the outing function Press and hold T for more than 2 seconds while the outing function is set amp Outing function indication Outing function indication sms O Remote Control Functions A remote controller loses outing function operation information when it is cut for more than one hour during the outing function operation by electricity It reverts from the blackout and an air conditioner does not drive in outing f
90. erant Tubing POCO EEO E EE EEE EEO EEE EEO EEE EOE E EET E TEESE EEE EEO TEETH OLEH HOOE EHS EEEEHSESELHESESESELEEEEEEEDEEEEDEEEEEE EEE EEO EDEL EEE DEOL ELEOD e Ventilate the room well in the event that is refrigerant gas leaks during the installation Be careful not to allow contact of the refrigerant gas with a flame as this will cause the generation of poisonous gas Keep all tubing runs as short as possible e Use the flare method for connecting tubing e Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them then tighten the nut with a torque wrench for a leak free con nection e Check carefully for leaks before starting the test run When Servicing e Turn the power OFF at the main power box mains before opening the unit to check or repair electrical parts and wiring Keep your fingers and clothing away from any moving parts e Clean up the site after you finish remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced e Ventilate any enclosed areas when installing or testing the refrigeration system Escaped refrigerant gas on contact with fire or heat can produce dangerously toxic gas e Confirm after installation that no refrigerant gas is leak ing If the gas comes in contact with a burning stove gas water heater electric room heater or other heat source it can cause the generation of poisonous gas C
91. erature at the same point a location where temperature fluctuations are small and check whether there is a temperature difference Difference A PCB or sensor failure is possible No difference PCB and sensor are normal Step 2 If an abnormality was found at Step 1 connect the problem compressor sensor to the other compressor connector on the PCB or to the PCB connector of a device where the F04 alarm has not occurred Measure the temperature at the same point a location where temperature fluctuations are small and check whether there is a temperature difference Difference Sensor failure No difference gt PCB failure yw It is convenient at this time to have a discharge temperature sensor on hand 2 Crossed wiring or installation error Trouble Although the other compressor is operating and this compressor is stopped the discharge temperature of the other compressor does not increase and the discharge temperature of this compressor rises The discharge temperature remains high immediately after the compressor stops Wait for some time after the compressor stops and observe Check Check for crossed wiring and installation errors Continued Trouble Diagnosis 3 W 3WAY VRF Alarm Codes 3 Leakage from the discharge tube check valve Trouble Although the other compressor is operating and this compressor is stopped the discharge temperature of this compressor rises together with the temperature of the other c
92. erway Set the trial run mode to Off operation If the trouble persists even after performing the checks recommended above shut down the air conditioner s operation set the local power switch to OFF and contact your dealer with the model number and trouble symptoms You must NOT attempt to make repairs yourself due to the dangers involved If one or more of the indication lamps is blinking give this information to the dealer as well 2 14 Remote Control Functions 3 Timer Remote Controller 3 1 How to Use the Timer Remote Controller Operating buttons CODENo F C oe eal 30 28 27 25 23 22 18 17 161514 29 26 24 3 Timer Remote Controller 3 2 Names and Operations Operation Section Refer to the previous page Pushing this button starts and pushing again stops the unit 2 Operation lamp The lamp is turned on when an air conditioner is in opera tion This lamp blinks when an error occurs or a protective device is activated 3 8 Mode Select button 11 Pushing this button to select an operation mode AUTO A HEAT s k DRYO COOL FANS 12 4 Temperature setting buttons Changing the temperature setting 13 5 8 FAN speed button Changing the fan speed 6 77 Swing Air direction button 1 Use this button to set the auto swing or air direction to a specific angle 7 UNIT Unit Select button When
93. es safely and efficiently For safe installation and trouble free operation you must e Carefully read this instruction booklet before beginning e Follow each installation or repair step exactly as shown e Observe all local state and national electrical codes Pay close attention to all warning and caution notices given in this manual Amen J N If Necessary Get Help These instructions are all you need for most installation sites and maintenance conditions If you require help for a special problem contact our sales service outlet or your certified dealer for additional instructions This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage In Case of Improper Installation The manufacturer shall in no way be responsible for improper installation or maintenance service including fail ure to follow the instructions in this document SPECIAL PRECAUTIONS WARNING When Wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH ONLY A QUALIFIED EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked Highly dangerous electrical voltages are used in this sys tem Carefully refer to the wiring diagram and these instructions when wiring
94. ess setting alarm too few units Alarm conditions The number of indoor units was too few when automatic address setting was performed Probable cause 1 The number of indoor units set at the indoor unit quantity setting SW No of I U 5004 S005 on the outdoor unit PCB is too many 2 The inter unit control wiring between indoor units has been cut Check 1 Refer to the test run servicing materials and check the indoor unit quantity setting SW No of I U 5004 5005 2 Check the inter unit control wiring at the indoor and outdoor units Correction After correcting the indoor unit quantity setting or the inter unit control wiring perform automatic address setting again W 3WAY VRF switch position g gt ts P Fait ig j l ACS AC2I2MAY I A aka Trouble Diagnosis 3 W 3WAY VRF Alarm Codes E16 Alarm Alarmoode E16 Automatic address setting alarm too many units Alarm conditions There were a number of indoor units was too many when Automatic address setting was performed e After initial communications were completed an unrecognized unit was detected Probable cause 1 The SW for setting the number of indoor units is incorrect 2 The inter unit control wiring is wired incorrectly Check 1 Refer to the test run servicing materials and check the number of indoor units that is set 2 Check the inter unit control wiring at the indoor and outdoor units Correction After
95. etting was smaller than the EG number of indoor units which was set with switch 5004 and 5005 on the outdoor unit PCB E16 The number of indoor units detected during automatic address setting was larger than the number of indoor units which was set with switch 5004 and 5005 on the outdoor unit PCB E20 The outdoor unit received no serial signals from indoor units within 90 seconds after automatic address setting was started Self Diagnosis Function Table 1 Self Diagnosis Function Table Check items E15 E16 E20 Check that the indoor unit power is turned ON O O Check that the inter unit control wiring is connected correctly Check that there are no open circuits short circuits terminal plugs incorrect wiring to the remote controller terminals or e OC similar problems Check that the remote controller wiring is connected correctly Check that there are no open circuits short circuits incorrect wiring to the inter unit control wiring terminals group control crossover wiring or similar problems Check that the number of indoor units has been set correctly using switch S004 and 5005 O on the outdoor unit control PCB Check that the amount of additional refrigerant charge is correct when performing Auto Address Setting Case 3A or Case 3B in the flow chart described on page 1 3 Check that the refrigerant tubing connections are correct when performing Auto Address O Setting Case 3A or Case 3B in
96. f the room temperature changes from area C A or A C within 10 minutes after the compressor turns OFF Monitoring mode is excepted 6 deg Selected operating mode 5 deg Shifted set temp 4 deg 1 2 deg Remote controller display B d 2 deg n Shifted set temp 4 deg Selected operating mode 6 deg gt lt Thermostat ON_ OFF ON OFF ON OFF JON OFF ON OFRON Heating Cooling Heating Remote Control Functions 2 Wireless Remote Controller Optional Controller Remote Controller Wireless Remote Controller CZ RWSU1U for X Type CZ RWST1U for A T Type CZ RWSC1U for U D Type CZ RWSK1U for K Type CZ RWSY1U 2 1 How to Use the Wireless Remote Controller Oo B Transmitter O Remote control sensor A ON OFF operation button C MODE button D Temperature setting buttons E FAN SPEED selector button J TIMER SET button I FLAP button K Time setting buttons G ADDRESS button L SET button F FILTER button M CL button P ACL button N VENTILATION button ALL CLEAR H A C SENSOR button NOTE The illustration above pictures the wireless remote control unit after the cover has been lowered and removed A ON OFF operation button This button is for turning the air conditioner on and off B Transmitter When you press the buttons on the
97. factors Ensure that the signals will not be blocked by any objects positioned between the transmitter and signal receiver Avoid placing the wireless remote control unit where it will be exposed to direct sunlight or in the direct path of the air blown out from the air conditioner near a heating appliance etc e Do not drop throw or wash the wireless remote control unit Signal reception may not be accepted in rooms with fluorescent lights that use the electronic instantaneous lighting system rapid start system or inverter system For further details contact your dealer 2 9 Remote Control Functions 2 Wireless Remote Controller When mounting the wireless remote control unit on a wall for use e Before mounting the wireless remote control unit on the wall place the unit at the mounting position press the ON OFF operation button and check that the signals are received properly e To remove the wireless remote control unit disengage it by pulling it toward you Secure the installation fitting of the wireless remote control unit using the screws gt Installation fitting of wireless remote control unit Operating tips 2 5 Address Settings How to check the addresses How to set the matching address 1 Place here Procedure for installing the wireless remote control unit Do not operate the wireless remote control unit too far away from the signal receiver Doing so may cause operational errors
98. ge pin e When operating the compressors to perform automatic address setting operation in Heating mode can be normally used However short circuiting this pin performs operation in Cooling mode Static signal Short circuiting this pin during ordinary operation changes the mode from Cooling to Heating if the current mode is Cooling or from Heating to Cooling if the current mode is Heating 2P plug white e This pin is used to test the PCB at the factory e When the power is turned ON after this pin has been short circuited all output signals will be output in sequence Sequential output does not occur if this pin is short circuited when the power is already ON Releasing this pin returns the unit to normal control PCB and Functions 1 Outdoor Unit Control PCB Table 1 Setting the System Address S002 Rotary switch black S003 2P DIP blue 5003 setting Outdoor system address 5002 setting aP 1P 10s digit 2P 20s digit 1 refrigerant 1 OFF system only OFF OFF OFF OFF OFF OFF OFF OMDNOAANRONR Link wiring OMDNAAANROVLN 0 0MsIMDdURAVLVN lt 0 00M0 0NNMURRONN Table2 Setting the Number of Indoor Units Table 3 Setting the Number of Outdoor Units S004 Rotary switch red S005 2P DIP blue S006 DIP switch blue Number of 5006 Setting Outdoor Units Number of 5004 Sett indoor Units 94 Setting 4 2 3 EEE NEDE OFF OFF OFF ON OFF OFF TON OF
99. gnal 2P plug red elay coil signa Indoor unit control PCB Note The length of the wiring from the indoor unit control PCB to the relay must be 6 6ft or less DISP 2P plug white Short circuiting this plug allows the unit to be operated by the remote CNO10 controller even if it is not connected to an outdoor unit In this case alarm E04 which indicates trouble in the serial communication between the indoor and outdoor unit does not occur CHK 2P plug white Test pin Short circuiting this plug allows the operation of the indoor fan CNO11 motor high and flap motor F1 position to be checked However this test operation stops if the indoor unit protection mechanism is activated The unit can be operated even if the remote controller and outdoor unit are not connected However if the remote controller is not connected it cannot be used to operate the unit This function can be used for short term tests JPO01 Jumper wire Allows selection of the T10 terminal start stop signal Status at shipment Pulse signal Jumper wire cut Static signal continuous signal FAN DRIVE 2P plug white This terminal sends a signal to the ventilation fan when the FAN button on CNO17 the wired remote controller is used to operate a commercially available ventilation fan Use a ventilation fan that can accept no voltage A contact as the external input signal Examples of wiring Lead wire with 2P plug special order part WIRE K 62
100. he high pressure gradually increases however it may not increase if the location where the liquid accumulates is sufficiently large Depending on the refrigerant saturation temperature it may also accumulate in low pressure locations In this case the high pressure is unlikely to increase 1 Check that the service valve is open 2 Check that none of the valves mechanical valves solenoid valves in the main refrigerant circuit is closed due to an operation failure 3 Check that there is no possibility of foreign objects or water having entered the refrigerant Circuit 4 Check that valve leakage at a stopped sub unit has not resulted in accumulation of refrigerant at that sub unit 5 Check that no refrigerant leakage has occurred Correction 1 If there was a valve operation failure in general it is necessary to replace the valve 2 If a foreign object or moisture has entered the circuit install a strainer or dry core depending on the degree of the problem 3 If refrigerant has leaked into stopped sub units it is likely that valve leakage has occurred The valve must be replaced Exampe Notes SSS Trouble Diagnosis 3 W 3WAY VRF Alarm Codes H08 H27 Alarm Alarm meaning HO8 Trouble open circuit with the oil sensor connection at compressor 1 H27 Trouble open circuit with the oil sensor connection at compressor 2 Alarm conditions This alarm occurs when a connector connection pins 1
101. heck of Density Limit The room in which the air conditioner is to be installed requires a design that in the event of refrig erant gas leaking out its density will not exceed a set limit The refrigerant R410A which is used in the aircondition er is safe without the toxicity or combustibility of ammonia and is not restricted by laws imposed to protect the ozone layer However since it contains more than air it poses the risk of suffocation if its density should rise excessively Suf focation from leakage of refrigerant is almost non existent With the recent increase in the number of high density buildings however the installation of multi air conditioner systems is on the increase because of the need fo reffec tive use off loor space individual control energy conserva tion by curtailing heat and carrying power etc Most importantly the multi air conditioner system is able to replenish a large amount of refrigerant compared to conventional individual air conditioners If a single unit of the multi air conditioner system is to be installed in a small room select a suitable model and installation pro cedure so that if the refrigerant accidentally leaks out its density does not reach the limit and in the event of an emergency measures can be made before injury can occur ASHRAE and the International Mechanical Code of the ICC as well as CSA provide guidance and define safe guards related to the use of refrigerants a
102. her set tings to be made for an individual or group control indoor unit to which the remote controller used for simple settings is connected When this function is engaged operation stops at the individual or group control indoor unit to which the remote controller for simple settings is con nected lt Procedure gt Press and hold the and 7 buttons MR simultaneously for 4 seconds or longer D BH unit No 1 or L in the case of group control item code 7 4 and settings data myx are displayed blinking on the remote controller LCD display At this time the indoor unit fan or all indoor unit fans in the case of group control begins operating 3 If group control is in effect press the button and select the address unit No of the indoor unit to set At this time the fan at the indoor unit begins operating p b If unit No Az is displayed the same setting will be made for all indoor units 4 Press the temperature setting Ca _ CY buttons to select the item code to change Press the timer time 4 w buttons to select the desired setting data For item codes and setting data refer to the following page 6 Press the button The display stops blinking and remains lit and setting is completed D Press the button to return to normal remote controller display Remote Control Functions 3 Timer Remote Controller List of
103. iates a cooling operation when its operation is started up at a room temperature of 75 F or above Conversely it initiates a heating operation when its operation is started up ata room temperature below 75 F Press the Emergency operation button once more A T types Initiate operation using the Emergency operation button in the signal receiver on the indoor unit Operation Press the Emergency operation button The air conditioner initiates a cooling operation when its operation is started up at a room temperature of 75 F or above Conversely it initiates a heating operation when its operation is started up ata room temperature below 75 F Press the Emergency operation button once more K type Initiate operation using the Emergency operation button in the operation area of the indoor unit Operation Set the ON OFF operation switch to OFP first Then set it to ON If a heat pump is used the air conditioner initiates a cooling operation when its operation is started up at a room temperature of 75 F or above or it initiates a heating operation when its operation is started up at a room temperature below io fe Set the ON OFF operation switch to OFF e TEST is used to initiate a trial run when the air conditioner is first installed It is not used under normal circumstances e To restart the wireless remote control unit s operation the ON OFF operation switch must be set to ON
104. ically Check that 4 V is being output to the mechanical valve connector pin on the PCB Also check that the mechanical valve coil winding resistance is several tens of Ohms Check that the solenoid valve kit has not failed Removing the coil when the valve is ON should produce a click sound Removing the coil when the valve is OFF should produce no sound Check that refrigerant overcharge has not occurred If the sub cool temperature at the condenser discharge is 59 F or higher overcharge has occurred Replace the failed part and correct the amount of refrigerant charge Trouble Diagnosis 3 W 3WAY VRF Alarm Codes P05 Alarm Alarmcode P08 O O O O O Reverse phase or missing phase detected Alarm conditions This alarm occurs when a reverse phase or missing phase is detected in the L1 L2 L3 phases Probable cause Reverse phase or missing phase in the L1 L2 L3 phases Check the wiring at the power terminal plate Switch the phases and reinsert Check if the result is OK Example Notes 17 OSO P16 Alarm Alarm code Alarm meaning Compressor 1 INV overcurrent alarm Alarm conditions This alarm occurs when current trouble or current detection trouble occurs at an inverter frequency of less than 80 Hz after start when trouble judgment current is detected in the primary or secondary current or when an instantaneous secondary current of 48 A or higher is detected Probable cause There is a strong possibility of a compressor
105. ich does not send signals when the power is ON Heating ready lamp blinking E06 C eo Improper setting Indoor unit address setting is duplicated Duplicated remote controller main setting e Starting auto address setting is prohibited e AP pin CN102 is shorted while the auto address setting started lt lt E08 gt gt lt lt E09 gt gt Operating lamp blinking x1 Indoor unit communication error of group control wiring During auto address setting number of connected units does not correspond to number set Error of main indoor unit in receiving serial communication signal from sub indoor units Number of connected indoor units is less than the number set E15 Number of connected indoor units is more than the number set No indoor unit is connected Main outdoor unit is detecting error signal from sub outdoor unit Heating ready lamp blinking Duplicated outdoor unit address setting Mismatch in No of outdoor units setting Error of sub outdoor unit in receiving signal from main outdoor unit es E29 Improper setting Indoor unit Connected indoor unit is not a multi unit Duplication of main indoor unit address setting in group control lt lt L02 gt gt Operating and heating lt LO3 gt ready lamps blinking Group control wiring is connected to individual control indoor unit Indoor unit ad
106. in the phase where the CT circuit is connected Check voltage and current 2 Crossed wiring or installation error Trouble When the compressor is stopped the current value at the other compressor is high When this type of condition occurs seizing detection control takes priority 3 If the cause is still unknown after checking the above then it is possible that noise is the cause of the trouble It is necessary to connect a PC or other instrument Correction 1 Replace the CT circuit 2 Replace the outdoor unit PCB 3 Correct the problem 1 The connector was not inserted after the PCB was replaced Use a normal CT as a tool to determine whether the trouble is a PCB failure or CT failure 3 13 Trouble Diagnosis 3 W 3WAY VRF Alarm Codes HO6 Alarm Alarmcode H06 O Alarm meaning Abnormal low pressure drop Alarm conditions A pre trip occurs during the units operation when the low pressure sensor installed at constant low pressure parts detects a pressure of 7 25 psi or less continuously for 2 minutes or an instantaneous pressure of 2 90 psi or less These values represent abnormal low pressure which may damage the compressor However the alarm does not actually occur the first 4 times that the above operation takes place At these times the outdoor unit is stopped and the conditions are monitored The alarm occurs when the above operation occurs for the fifth time The first 4 times before the alarm occurs
107. ing and cooling operation e The display indicates the operating mode of the indoor unit with the lowest unit No All units test run Fig 6 2 lt Operation gt The CHECK button can be used to start and stop a test run for all units To start press and hold the button for 4 seconds During the test run Test is displayed e The status of test runs performed from the indoor unit remote controller is not displayed on the outdoor unit maintenance remote controller amp If the inter unit control wiring is connected it can be left as is In the case of an independent outdoor unit 1 maintenance remote controller connected to 1 outdoor unit automatic address setting for indoor units not completed both setting mode 1 and setting mode 2 can be used for outdoor unit EEPROM data settings The overall system status for that refrigerant system is displayed CAN CEL CAN CEL 1 Outdoor Unit Maintenance Remote Controller E Display functions The item codes can be changed with the I A and I W buttons Thermostat ON status of indoor unit 7 segment display No of connected outdoor units 1 2 Unit Nos of connected outdoor units 7 segment display Operating status of outdoor unit compressor 7 segment display Compressor 1 operating time 0 99999999 hrs 0 Empty 1 Insufficient 2 Sufficient 0 Empty 1 Insufficient 2 Sufficient
108. ion Appears when the remote control sensor is used Centralized control indication Appears when operated in centralized control If the remote control operation is not permitted to the remote unit when the Start Stop button Mode Select button or Temperature setting button is pressed flashes and rejects the change 17 18 20 21 22 23 24 25 26 27 28 29 30 31 Remote Control Functions Operation mode change control indication Displays when an operation mode is entered by the re mote control unit while another operation mode has been already selected This indicates that the operation mode cannot be changed Disabled Feature indication Displayed if the selected feature was disabled during installation Heating standby mode indication appears when the fan of the indoor unit is stopped or in low fan speed DE 833 83 Fan mode select indication The selected fan mode is displayed SWING indication Appears while the flap swings A Flap position indication Indicates the flap position H Filter indication Appears when filter needs cleaning Clean the filter Inspection indication Appears when the protective device is activated or when an abnormality occurs 7 Ventilation indication Appears when a fan available in the market is installed and is operating Em Oil indication Appears when the engine oil needs to be changed Ap pears when the gas he
109. ion based on the cooling difference between the temperature setting and room temperature All indoor units in the same refrigerant system can be operated with a single group control Simultaneous operation of Group control is suitable for air conditioning of a large room using multiple air conditioning multiple units Group units control e One remote control unit can control up to eight indoor units e All indoor units have the same settings except for the airflow direction e The temperature sensors at the indoor unit side are used Outdoor unit 2 8 Remote Control Functions 2 Wireless Remote Controller 2 4 Using the Wireless Remote Control Unit Slide switch This is used to set the operation mode of the indoor units and to set the flaps e Depending on the indoor unit used the operation display and airflow direction display settings will differ as shown below e Use a pointed implement to change the switch position e When the switch position has been changed press the ACL button For details on the flap functions refer to the operating instructions of the indoor unit used Model which supports different flap settings Swing only model No flap model Flap display on wireless remote control unit Heat pump with auto Heat pump without cooling heating auto cooling heating Cooling only function function Operation mode display 28 A R on wireless remote With th
110. ion signals from indoor unit Alarm conditions Outdoor unit failed to receive serial communication signals from indoor unit Probable cause 1 The indoor unit power was cut OFF after initial communications were completed 2 An open circuit or short circuit occurred in the inter unit control wiring after initial communications were completed Check the power at the indoor and outdoor units and check the inter unit control wiring Correction o O Example gt O Notes This alarm is detected after initial communications are completed Therefore it does not occur in cases of disconnected serial connector no terminal unit set or other trouble that occurs before initial communications are completed If initial communications have not been completed alarm E04 occurs E12 Alarm Alarm code Alarm meaning Automatic address setting start is prohibited Alarm conditions Automatic address setting was started when automatic address setting was in progress at another outdoor unit in the same link Probable cause Automatic address setting is in progress at another outdoor unit Check This alarm is not displayed on the remote controller Therefore check the blinking on the outdoor unit PCB Correction Wait for automatic address setting to be completed at the outdoor unit where it is currently in progress Then start automatic address setting again Exampe 9 gt SO Mos fo E15 Alarm Alarm code O OO O Automatic addr
111. issing phase Check the Alarm Display table and correct the problem Refer to Section 3 Trouble Diagnosis Nothing happens when the operator attempts to start automatic address setting from the wired remote controller Check that the wired remote controller wiring and the inter unit control wiring are connected correctly Check that the indoor unit power is ON e Causes and corrections in instances when automatic address setting starts but cannot be completed successfully Trouble Cause and correction An alarm appears on the wired remote controller sometime from several seconds to several minutes after automatic address setting is started LED 1 and 2 on the outdoor unit control PCB indicate that automatic address setting is in progress the LEDs blink alternately for several minutes after automatic address setting is started the compressors may also start and stop several times however LED 1 and 2 never indicate that automatic address setting is completed turn OFF Check the Alarm Display table and correct the problem Refer to Section 3 Trouble Diagnosis Check the alarm details on the Outdoor Unit Control PCB LED 1 and 2 Alarms then correct the problem e f alarm E15 E16 or E20 appears after automatic address setting is started check the following items Alarm display Alarm description The number of indoor units detected during automatic address s
112. its in the refrigerant system signal from outdoor unit occurring when remote controller is operated immediately after E04 automatic address setting Outdoor unit is detecting error e Error in receiving serial communication signal signal from indoor unit There is an indoor unit which does not send signals when the E06 power is ON Indoor unit address setting is duplicated lt lt E08 gt gt Improper setting Duplicated remote controller main setting lt lt E09 gt gt Starting auto address setting is prohibited e AP pin CN102 is shorted while the auto address setting started Indoor unit communication Error of main indoor unit in receiving serial communication signal error of group control wiring from sub indoor units During auto address setting Number of connected indoor units is less than the number set E15 number of connected units Number of connected indoor units is more than the number set E16 does not correspond to number set No indoor unit is connected E20 Main outdoor unit is detecting error signal from sub outdoor unit E24 Duplicated outdoor unit address setting E25 Mismatch in No of outdoor units setting E26 Error of sub outdoor unit in receiving signal from main outdoor unit E29 Improper setting Connected indoor unit is not a multi unit lt lt L02 gt gt Duplication of main indoor unit address setting in group control lt LO3 gt Group control wiring is connected to individual control indoor unit LO7
113. l PCB 2 Connect the jumper connector 2P yellow which was supplied with the accessory to the correct connector pin on the indoor unit control PCB according to the setting number which was confirmed in Table 3 Table of DC Fan Motor Tap Settings e f the setting No is 1 then connect the jumper connector to the connector pin TP1 2P red on the indoor unit control PCB e f the setting No is 3 then connect the jumper connector to the connector pin TP3 2P yellow on the indoor unit control PCB 3 Timer Remote Controller 3 17 Remote Controller Servicing Functions Test run Sensor temperature display Servicing check display Simple settings Detailed settings Automatic address Address change Operation with forced thermostat ON Temperature display from each sensor Alarm history display Filter lifetime operating mode priority central control address and other settings System address indoor unit address central control address and other settings Automatic address setting based on command from the wired remote controller Change of indoor unit address Press and hold the button for 4 seconds or longer Press and hold the L and buttons for 4 seconds or longer Press and hold the and buttons for 4 seconds or longer Press and hold the and E buttons for 4 seconds or longer Press and hold the and buttons for 4 seconds or longer
114. l Wiring Instruction as shown below and the Local Code A heater can potentially cause serious damage or fire Please be careful to wire it with a best manner 3 Be sure to provide an independent power supply for the external heater which is separate from the power supply for the indoor unit 4 If there is a failure of the indoor unit Control PCB or indoor unit fan motor the indoor unit stops outputting heater signal 5 When Wring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH ONLY A QUALIFIED EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked How to connect external heater Electrical component box Model S MF S ME S MP S MR for indoor unit 1 The output signal is 230V AC OR UHX0762 a z 2 When installing the heater be sure to turn OFF CN304 WHT the power to the indoor unit 3 If it is wired to the connectors other than the heater output terminal by mistake the heater signal can not be output correctly Heater drive 4 The connector for this output is separately sold IG A connection by the following part code 623 312 1390 Make connection inside the electrical component box eee i Wiring inside the electrical component box of the I indoor unit should be carried out referring to the a wiring diagram of each model Heater output terminal re Since it
115. ler prohibit input Start signal output MAlarm signal output Condition 1 2 Pulse input Unit ON OFF condition switching with a pulse signal 1 pulse signal shortage status more than 300msec or more 2 2 3 Static input Open Operation with Remote is permitted Normal condition Close Remote controller is prohibited 3 4 5 Static output 12V output during the unit ON No output at OFF 4 5 6 Static output 12V output when some errors occur No output at normal amp Example of signal H 300msec or more 1 2 pulse input 12 4 5 output yellow Unit condition OFF The wire length from indoor unit to the Relay must be within 6 5ft Pulse signal changeable to static with JP cutting Refer to JP001 amp This is a method to control the indoor unit individually Condition 1 2 Static input Close Operation with Remote is permitted Normal condition Open Unit is forcibly OFF and Remote controller operation is prohibited Example of wiring Relay Field supply The contact in the figure is a state where the card is pulled out Indoor unit External contact control PCB Card switch box etc field supply The wire length from indoor unit to the Relay must be within 6 5ft Special order parts Wire K 623 176 6814 PCB and Functions 2 Indoor Unit Control PCB EXCT CNO09 DISP CNO10 CHK CNO11 JPOO1 FAN DRIVE CNO17 2P plug re
116. ll of which define a Refrigerant Concentration Level RCL of 25 pounds per 1 000 cubic feet for R410A refrigerant For additional guidance and precautions related to refrigerant safety please refer to the following documents International Mechanical Code 2009 IMC 2009 or more recently revised ASHRAE 15 ASHRAE 34 Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Contents TEST RUN rr ct anced ete ees ante se sc ee E A 1 1 Me FOG FAM EEE ENE 1 2 2 SM M0 a O70 0 1 60 aC enemenen ences iior EE eee mere nner tone nee neem 1 4 5 MONTES ANN 1 6 4 Remote Controller Test Run Settings rrarrnnrarrrnnnnrnvannrnnnnnnnnnnennnnnnnrnnrnnnnner 1 12 5 Caution TOF PUMO DONN 1 13 6 Meaning of Alarm Messages vernede 1 14 REMOTE CONTROL FUNCTIONS rannennnnnennnnnnnnnnennnnnnnnnnennnnnnnnnnennnnnennnnennnnnennnnnen 2 1 ANNE Gs eectoneclaten i 2 2 2 Wireless Remote Controller vsssisaccntseicdvedvarmnswnaseacent seam mdanawenciantdnddemantouconsaaneds 2 4 3 Timer EON PE 2 15 TROUBLE DIAGNOSIS Lise 3 1 1 Contents of Remote Controller Switch Alarm Display rrrarernarernnronnnrnvnnnnnnn 3 2 2 Outdoor Unit Control PCB LED NN Ne 3 4 gt VNR 3 5 4 Blinking A Inspection Display on the Remote Controller rrrrnnrrnnnrennrr 3 26 PGCBANDFUNGTIONS Lue 4 1 1 Outdoor UG NLP Ber 4 2 2 NO Unit Control PO B 24 eiaa einir 4 7 SELF DIAGNOSIS FUNCTION TABLE nnnnnnnnnnnnnnn
117. m 3 Halarm 4 Ealarm 5 F alarm 6 Lalarm N Alarm No Example LED 1 blinks 2 times then LED 2 blinks 17 times The cycle then repeats Alarm is P17 3 W 3WAY VRF Alarm Codes W 3WAY VRF Trouble Diagnosis Alarm code Alarm meaning Page E06 Outdoor unit failed to receive serial communication signals from indoor unit 3 6 E12 Automatic address setting start is prohibited 3 6 E15 Automatic address setting alarm too few units 3 6 E16 Automatic address setting alarm too many units 3 7 E20 No indoor units at automatic address setting 3 7 E24 Outdoor unit INV failed to receive communications from another outdoor 3 7 unit constant speed E25 Outdoor unit address setting failure duplication 3 8 E26 Mismatch in outdoor unit quantity 3 8 E29 Outdoor unit failed to receive communication from relay control unit 3 8 F04 Compressor 1 discharge temperature sensor trouble 3 9 F05 Compressor 2 discharge temperature sensor trouble 3 9 FO6 Gas temperature sensor trouble at outdoor heat exchanger 1 In 3 10 FO7 Liquid temperature sensor trouble at outdoor heat exchanger 1 Out 3 10 F08 Outdoor air temperature sensor trouble 3 11 F12 Compressor intake temperature sensor trouble 3 11 F16 High pressure sensor trouble 3 11 F17 Low pressure sensor trouble 3 13 F23 Gas te
118. monitoring displays The display and operations are the same as for the alarm history monitor performed from the indoor unit remote controller However the unit No display shows the outdoor unit address 2 Press the UNIT button and select the outdoor unit for which to monitor the alarm history 3 Press the temperature setting C a _ Jand y buttons and select the item code for the alarm history The selected outdoor unit address the item code and the alarm history alarm data are displayed The outdoor unit address is displayed as R C XX YY R C XX Outdoor unit system address YY Outdoor unit address Item codes 01 08 are displayed 01 indicates the most recent alarm The alarm history displays the alarm code If no alarms are present then is displayed 4 To clear the alarm history press the CANCEL button The outdoor unit alarm history will be cleared 5 To exit press the CHECK button The display returns to the normal display TIMER zw COPY Service Checker 1 Outdoor Unit Maintenance Remote Controller 1 6 Setting the Outdoor Unit EEPROM Data A This function is used to make the outdoor unit EEPROM data settings SETTING ell C R C m Setting mode 1 I Press the CHECK button and the VENTILATION button simultaneously for 4 sec onds or longer 2 Press the temperature setting Ca J and v_ buttons to change the item
119. mote controller is not connected correctly remote controller receiving trouble E01 The remote controller of an indoor unit where the indoor unit address is not set is inadvertently operated Communications with the outdoor unit are not possible E02 The remote controller is not connected correctly trouble with sending of the signal from the remote controller to the indoor unit P09 The indoor unit ceiling panel connector is not connected correctly Self Diagnosis Function Table 1 Self Diagnosis Function Table e The outdoor unit maintenance remote controller can be used to check the alarm display The number of times that LED 1 and 2 blink on the outdoor unit control PCB can be used to check the alarm display Refer to Checking the LED 1 and 2 Alarm Display on the Outdoor Unit Control PCB Alarm code Alarm meaning E06 Outdoor unit failed to receive serial communication signals from indoor unit E12 Automatic address setting start is prohibited E15 Automatic address setting alarm too few units E16 Automatic address setting alarm too many units E20 No indoor units at automatic address setting E24 Outdoor unit failed to receive communications from another outdoor unit E25 Outdoor unit address setting failure duplication E26 Mismatch in outdoor unit quantity E29 Outdoor unit failed to receive communication from another outdoor unit
120. mperature sensor EXL1 trouble at outdoor heat exchanger 1 F24 Liquid temperature sensor EXL2 trouble at outdoor heat exchanger 2 1 A D step is 10 steps or less short circuit 2 A D step is 1014 steps or more open circuit 1 Sensor malfunction including connector 2 PCB malfunction Check 1 Measure the sensor resistance Check that the sensor is operating normally 2 Use a remote controller monitor or PC monitor to check the temperature that is recognized by the microcomputer Correction Example Mos o Trouble Diagnosis 3 W 3WAY VRF Alarm Codes F08 Alarm Alarm code tdoor air temperature sensor AIR TEMP trouble A D step is 10 steps or less short circuit A D step is 1014 steps or more open circuit Sensor malfunction including connector Alarm meaning Alarm conditions Probable cause PCB malfunction Measure the sensor resistance Check that the sensor is operating normally Use a remote controller monitor or PC monitor to check the temperature that is recognized by the microcomputer Check NNN Nm N ejN Correction Example Notes F12 Alarm Alarm eode P12 Alarm meaning Compressor intake temperature sensor SCT trouble Alarm conditions 1 A D step is 10 steps or less short circuit 2 A D step is 1014 steps or more open circuit Probable cause 1 Sensor malfunction including connector 2 PCB malfunction Check Measure the
121. mperature sensor trouble at outdoor heat exchanger 2 In 3 10 F24 Liquid temperature sensor trouble at outdoor heat exchanger 2 Out 3 10 F31 Outdoor unit non volatile memory EEPROM trouble 3 13 HO3 Compressor 1 CT sensor disconnected or short circuit 3 13 H11 Constant speed compressor 2 over current alarm 3 16 H12 Constant speed compressor 2 lock current alarm 3 16 HO6 Low pressure trouble in refrigerant circuit 3 14 HO7 No oil alarm 3 18 H08 Compressor 1 oil detection sensor connection trouble 3 15 H13 Compressor 2 CT sensor disconnected or short circuit 3 13 H15 Compressor 2 discharge temperature sensor disconnected 3 17 H27 Compressor 2 lock current alarm 3 15 H31 HIC trouble alarm 3 19 L04 Outdoor unit address duplication 3 19 L10 Outdoor unit capacity not set 3 20 L17 Outdoor unit model mismatch 3 20 P03 Compressor 1 discharge temperature trouble 3 21 P04 High pressure switch activated 3 23 P05 Reverse phase or missing phase detected 3 24 P16 Compressor 1 over current 3 24 P17 Compressor 2 discharge temp trouble 3 21 P22 Fan motor trouble 3 25 P26 Inverter compressor high frequency over current alarm 3 25 P29 Inverter compressor missing phase or lock alarm 3 25 a CHECK blinking 1 3 26 Blinking on the wired remote controller CHECK blinking 2 3 27 Trouble Diagnosis Trouble Diagnosis 3 W 3WAY VRF Alarm Codes E06 Alarm Alarmcode e O O O O Alarm meaning Outdoor unit failed to receive serial communicat
122. n press the FILTER button on one of the remote control units to turn off the filter sign G ADDRESS button When a multiple number of indoor units that can be operated by the wireless remote control unit have been installed in the same room with a multi unit or single unit installation this button enables addresses to be set in order to prevent the sending of signals to the wrong indoor unit Each of up to six indoor units can be controlled separately using its own wireless remote control unit by matching the number of the address switch on the operation area of the indoor unit and the number used for the address of its remote control unit The indoor units cannot be controlled separately when they are used in a flexible combination format simultaneous operation of multi units format or any other such format since they will all operate at the same time When the batteries are replaced the address setting returns to ALL so you must make the setting again H A C SENSOR button When you press this button use a narrow tipped object such as a ballpoint pen the t indication will disappear on the display The room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly NOTE If the remote control is located near a heat source such as a space heater or in direct sunlight press the A C SENSOR button to switch to the sensor on the indoor unit I FLAP button 1 Use this butt
123. ncy overcurrent alarm Alarm conditions This alarm occurs when current trouble or current detection trouble occurs at an inverter frequency of 80 Hz or higher after start when trouble judgment current is detected in the primary or secondary current or when an instantaneous secondary current of 48 A or higher is detected Probable cause The detection methods are the same as for P16 However the fact that operation up to high frequencies is possible does not necessarily mean that a compressor failure is the cause of the trouble Start the compressor several times If alarm P26 occurs every time and alarm P16 does not occur at all then the possibility of a compressor failure is low Check Check the power wiring and connector wiring Correction It is possible to resolve this trouble by limiting the maximum frequency Example Notes 97 O P29 Alarm Alarmcode P8 Alarm meaning Inverter compressor missing phase or lock alarm Alarm conditions This alarm may occur at start and occurs when missing phase or lock is detected and when a DCCT failure occurs Probable cause Generally this alarm occurs when the refrigerant pressure balance is uneven at start or when inverter compressor lock occurs there is a missing phase in the inverter compressor wiring or a DCCT failure occurs This can be judged to be starting trouble which is not caused by HIC Check the power wiring and connector wiring DCCT failure replace PCB
124. ng of Alarm Messages 6 Meaning of Alarm Messages Table of Self Diagnostics Functions and Description of Alarm Displays Alarm messages are indicated by the blinking of LED 1 and 2 D72 D75 on the outdoor unit PCB They are also displayed on the wired remote controller Viewing the LED 1 and 2 D72 and D75 alarm displays Test Run LED1 LED2 Alarm contents Alarm Display Alternating LED 1 blinks M times then LED 2 blinks N times The cycle then repeats M 2 P alarm 3 H alarm 4 E alarm 5 F alarm 6 L alarm N Alarm No Example LED 1 blinks 2 times then LED 2 blinks 17 times The cycle then repeats Alarm is P17 3 Blinling Connect the outdoor maintenance remote controller to the RC socket on the outdoor main unit control PCB 3P blue and check the Alarm Messages on the remote controller display Alarm Possible cause of malfunction Message Serial Remote controller is Error in receiving serial communication signal i i lt E01 gt communication detecting error signal from Auto address is not completed ENOS ODE Error in transmitting serial communication signal lt E02 gt Mis setting 3 Indoor unit is detecting error signal from remote controller and system controller lt lt E03 gt gt Indoor unit is detecting error Group wiring failure of indoor un
125. ning X After the power is turned ON and automatic address setting is not in progress no communication with the indoor units in that system is possible After the power is turned ON and automatic address setting is not in progress 1 or more indoor units are confirmed in that system however the number of indoor units does not match the number that was set Automatic address setting is in progress e Automatic address setting completed At time of automatic address setting the number of indoor units did not match the number that was set AN when indoor units are operating indication appears on the display indicates that the solenoid is fused or that there is a CT detection current failure current is detected when the compressor is OFF Remote controller display SMT is blinking 1 11 3 Auto Address Setting Test Run 4 Remote Controller Test Run Settings Request concerning recording the indoor outdoor unit combination Nos After automatic address setting has been completed be sure to record them for future reference List the outdoor main unit system address and the addresses of the indoor units in that system in an easily visible location next to the nameplate using a permanent marking pen or similar means that cannot be abraded easily Example Outdoor 1 Indoor 1 1 1 2 1 3 Outdoor 2 Indoor 2 1 2 2 2 3 These numbers are necessary for later maintenance Please be
126. nit 5 times or more within 3 minutes Probable cause Incorrect outdoor system address settings Check the system address settings again Correct the system address settings Example e O Notes Recovery from this alarm occurs automatically when communication that contains the same address as that unit is not received for 3 minutes after detection Trouble Diagnosis 3 W 3WAY VRF Alarm Codes L10 Alarm Outdoor unit capacity not set Alarm conditions The outdoor unit capacity has not been set or the setting is not allowed by the system Probable cause This alarm occurs because the capacity has not been set Check Connect the outdoor unit maintenance remote controller On the outdoor unit EEPROM detailed setting mode screen check the value for the outdoor unit capacity item code 81 Check that it is not set to O or to a capacity that is not allowed If item code 81 is incorrect use the outdoor unit maintenance remote controller and set it correctly After changing the setting be sure to reset both the indoor and outdoor power Example Notes The outdoor unit maintenance remote controller is required in order to set the capacity in the outdoor unit EEPROM L17 Alarm Outdoor unit model mismatch Alarm conditions This alarm occurs when a unit other than a R410A refrigerant model is connected Probable cause 1 A unit that uses R407C refrigerant or a R22 model unit was connected by mistake 2 The connected
127. nnnnnnennnnennnnennnne 3 2 2 Outdoor Unit Control PCB LED Display aanennnnennnnnnnnnnnnnnnnnnnnnnnennnnennnnennnnnnnnnnnnnnnnnnennnnennn 3 4 3 W 3WAY VRE Alarm COdes n rnannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnunnnnnnnnnnnnennnnnnnnnnnnnnnnennnnnnnennnnnnnuennue 3 5 4 Blinking A Inspection Display on the Remote Controller anxxnanxennnnnnnnnnnnnnnnnnennnnr 3 26 1 Contents of Remote Controller Switch Alarm Display Serial communication errors Mis setting Thermistor fault Trouble Diagnosis ON 0 Blinking X lt OFF Wired Wirel remote LEE control remote controller display receiver display Possible cause of malfunction Er 5 EE fis igi I SE GE Remote controller is Error in receiving serial communication signal r i lt E01 gt Operating detecting error signal from Auto address is not completed she indoor unit mr Error in transmitting serial communication signal lt E02 gt x FR l Indoor unit is detecting error signal from remote controller and system controller lt lt E03 gt gt i i Indoor unit is detecting error Group wiring failure of indoor units in the refrigerant system i occurring when remote controller is operated immediately after E04 signal from outdoor unit Outdoor unit is detecting error signal from indoor unit automatic address setting e Error in receiving serial communication signal e There is an indoor unit wh
128. nnnnnnnennnnnnnnnnennnnnnnnnnennnnnnnnnnnnnn 5 1 1 Self Diagnosis Function Table ccccccceeccecsesseeceeeeeseseeeeeseeeesseaeeesseaeeesaaees 5 2 SERVICE CHECKER eee ee ee ee ne ee eee 6 1 1 Outdoor Unit Maintenance Remote Controller rrrrarrrrnnrrrrannennnnnnrnnnennnnnnnnnn 6 2 Contents Th N TA TI VE Test Run 1 TEST RUN Ts PS oeri E E EE EE 1 2 1 1 Preparing for Test RUn rrrnnnnnnnnnnnnnrnnnnennnnennnnennnnnnnnnnvnnsnnnnsnnnnrnnnnennnsnnnnsnnnnrnnanennusennnne 1 2 1 2 fest Run Procedure rn rrnnnvnnnennnennnernnennnrrnnnnnenennnennnernnennenennnnnenennnennnennnennennnnnnnenennnenne 1 3 2 Setting of Unit Control PCB are 1 4 2 1 Main Outdoor Unit PCB Setting rrrnrnnrrnnnnnnrnnnervnnnennnnernnnrennnnnennnnrnnansennnsnnnnnennnsennnn 1 4 3 Auto Address Setting asasnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn nnmnnn nnnm 1 6 3 1 Auto Address Setting rrrarrrrrnnnrrrrnnnrrrrnnnrernnnnrnrnnnnennnnnrennnnsnnrnnssnnnnsnennnnssennnnssennnsssnn 1 6 4 Remote Controller Test Run Settings nr rnnnvennnnvnnnnnnnnnnnennnnnnnnnnennnnvnnnnnennnnnennnnvennnnennnnnr 1 12 5 Caution for Pump DoOWn ssavenannnnnnnnnnnnnnnnnnnnnennnnennnnennnnnnnnnnnnnnnnnnennnnennnnnnnvnnnnnennnnennnnennnnen 1 13 6 Meaning of Alarm Messages nnvrnnnvnnnnvnnnuvnnnunnnnvvnnnvnnnnvnnnnennnnennnvennnvrnnuvnnnvennnvennnvennnvrnnnere 1 14 1 Test Run 1 1 Preparing for
129. not be performed for more than one system at the same time Communication for automatic address setting begins the compressors turn ON and automatic address setting in Cooling mode begins All indoor units operate To cancel again short circuit the automatic address pin CN100 for 1 second or longer then release it The LED that indicates automatic address setting is in progress turns OFF and the process is stopped Be sure to perform automatic address setting again Automatic address setting is completed when the compressors stop and LED 1 and 2 on the outdoor main unit control PCB turn OFF l At the outdoor main unit in the next different system short circuit the automatic address pin CN100 for 1 second or longer then release it i Repeat the same steps to complete automatic address setting for all units Operation from the remote controllers is now possible Automatic address setting in Cooling mode cannot be done from the remote controller Automatic Address Setting from the Remote Controller Selecting each refrigerant system individually for automatic address setting Automatic address setting for each system Item code A1 1 Press the remote controller timer time 4 button and button at the same time Press and hold for 4 seconds or longer Next press either the temperature setting 4 Jor C Y button Check that 2 the item code is A1 Use either the or button t
130. o set the system No to perform auto matic address setting Then press the button Automatic address setting for one refrigerant system begins SETTING When automatic address setting for one system is completed the system returns to normal stopped status lt Approximately 4 5 minutes is required gt During automatic address setting NOW SETTING is displayed on the remote controller This message disappears when automatic address setting is completed Repeat the same steps to perform automatic address setting for each successive system 1 10 Test Run 3 Auto Address Setting Display during automatic address setting amp On outdoor main unit PCB LED 2 1 9 Do not short circuit the automatic address setting pin CN100 again while automatic address setting is in a progress Doing so will cancel the setting operation and will cause LED 1 and 2 to turn OFF Blink alternately When automatic address setting has been successfully completed both LED 1 and 2 turn OFF LED 1 is D72 LED 2 is D75 If automatic address setting is not completed successfully refer to the table below and correct the problem Then perform automatic address setting again Display of LED 1 and 2 on the outdoor unit control PCB 3 ON 3 Blinking OFF LED1 LED2 Display mea
131. oller Display Section Refer to the page 2 15 1 10 11 12 13 14 15 16 amit SETTING indication Appears when the timer program is being set UNIT UNIT indication Indicates the unit No of the indoor unit which is selected with the Unit Select button or the unit in which an abnor mality occurs TIMER No TIMER No indication Appears when the time program is being set Timer program 1 The indoor unit starts operation at the programmed time Oj The indoor unit stops operation at the programmed time w Today s day of the week Indicates today s day of the week Program schedule indication Appears under days that are scheduled for program op eration Present time Displays the present time on a 24 hour clock Also dis plays settings in the various setting modes ENG TIMER OFF indication Displayed when the timer has been turned OFF ERROR indication Displayed when a mistake is made during timer setting FI Outing indication ts Outing function Appears when the outing function is set Upper and lower limit indication of the outing func tion Indicates the upper limit of the temperature Y Indicates the lower limit of the temperature Operation Mode indication Displays the selected operation mode AUTO HEAT DRYO COOLS FANSE Temperature indication Indicates the set temperature F C temperature unit indication Remote control sensor indicat
132. omatic backup mode will not be canceled until the power is reset Notes Automatic backup mode is not engaged in cases of alarms other than those listed above Reasons There is no need for automatic backup if recovery is possible by correcting the remote controller input e With alarms for which automatic recovery is possible Such as sensor alarms the presence of electrical noise may result in a new alarm However it is believed that this occurs for a comparatively short time only In these cases a mode automatic backup mode that limits operation may be engaged e Control is not possible when a communications system alarm has occurred e Automatic backup mode is not engaged in order to avoid causing secondary damage Trouble Diagnosis 4 Blinking AN Inspection Display on the Remote Controller Blinking inspection display 2 compressor magnet SW seizing detection Blinking N inspection display Alarm meaning Compressor magnet SW seizing detected Status The compressor and outdoor unit fan motor continue to run even though all indoor units within that refrigerant tubing system are stopped vr Because the fan is running only at the outdoor unit where seizing was detected check the corresponding outdoor unit The fan may also run on its own when fan cracking prevention control is in effect or when snowfall sensor input is present Therefore monitor for approximately 10 minutes if the outdoor unit fans are operating at mul
133. ompressor The ambient temperature around the outdoor unit when it is stopped is 109 F or higher Correction Replace the sensor Replace the outdoor unit PCB Carry out noise countermeasures Repair the refrigerant tubing Adjust the amount of refrigerant Correct the trouble identification of the problem in this case Notes This alarm does not indicate that the sensor is disconnected In order to prevent overheating during operation the outdoor units in this system will not allow a compressor to start if the discharge temperature does not decrease while the compressor is stopped If a sensor malfunction results in continuous detection of a high discharge temperature then the compressor may stop for no apparent reason The purpose of this alarm is to facilitate F06 F23 Alarm Alarmcode FOSF23 O O O O O O Alarm meaning F06 Gas temperature sensor EXG1 trouble at outdoor heat exchanger 1 F23 Gas temperature sensor EXG2 trouble at outdoor heat exchanger 2 Alarm conditions 1 A D step is 10 steps or less short circuit 2 A D step is 1014 steps or more open circuit Probable cause Sensor malfunction including connector PCB malfunction Measure the sensor resistance Check that the sensor is operating normally Use a remote controller monitor or PC monitor to check the temperature that is recognized by MP ejN the microcomputer F07 F24 Alarm Alarm meaning F07 Liquid te
134. on the remote controller LCD display 3 Press the temperature setting _ _ Cv buttons and select the item code to the address of the sensor to monitor For the relationships between the sensor addresses and sensor types refer to the table of The temperature on the remote controller is displayed temperature sensors and addresses below in Celusis C O If group control is in effect press the UNIT Please note that you will not mistakenly read it button to select the unit to monitor in Fahrenheit F on the display Press the temperature setting buttons to select the item code to change UnitNo 1 UnitNo 2 UnitNo3 o Press the button to return to normal remote controller display B 2B 4B Dischargetemp 2 op m m fHeatexchangergast The temperature display appears as for units that are not connected If monitor mode is engaged while normal operation 10 30 50o Heatexchangerliquid2 is in progress only the parts of the LCD display E NA ee shown in the figure will change Other parts con tinue to display the same information as during normal operation Indoor unit sensors Intake temp Discharge temp Discharge temp setting Position of indoor unit Motor Operated Valve MOV 1C 3C 5C o o fe o foi EN Contents TE N TA E T V E Trouble Diagnosis 3 TROUBLE DIAGNOSIS 1 Contents of Remote Controller Switch Alarm Display nxennnnnnnnnnnnnnnnn
135. on to set the airflow direction to a specific angle The airflow direction is displayed on the remote control unit Operation mode Number of airflow direction settings s COOL or 0 DRY 3 HEAT or FAN 5 AUTO Cooling mode 3 Heating mode 5 CAUTION In the Cool mode and Dry mode if the flaps are set in a downward position condensation may form and drip around the vent Do not move the flap with your hands NOTE This function is available only for models X XM A T and K SWEEP 2 Use this button to make the airflow direction sweep up and down automatically Press this button several times until the symbol appears on the display To stop the swing operation Press the FLAP button again during the flap swing operation to stop the flap at the desired position Then the airflow can be set from the top position by pressing the FLAP button again Remote Control Functions 2 Wireless Remote Controller Indicator when swing operation is stopped Fan and heating Cooling and drying During cooling and drying the flap does not stop at the downward position Even if the flap is stopped at the downward position during the swing operation it does not stop until it moves to the third position from the top This function is available only for models X XM A T and K J TIMER SET button Use this button while the unit is operating to switch between timer settings OFF Timer The air conditioner stops after
136. oom An air conditioner works automatically if this function is set effective General Performance of the Outing Function COOL DRY The air conditioner starts operation when the room temperature increases up to 1 F of the upper limit The air conditioner stops operation when the room temperature decreases up to 2 F of the upper limit m For Example amp Setting at Outing Temperature 86 F Outing function Upper limit gt Setting at Outing Temperature HEAT The air conditioner starts operation when the room temperature decreases up to 1 F of the lower limit The air conditioner stops operation when the room temperature increases up to 2 F of the lower limit m For Example amp Setting at Outing Temperature 53 F 77 Room temperature Outing function Lower limit gt Setting at Outing Temperature Precautions The outing control only starts stops the air conditioner It does not change the operation mode temperature setting Therefore the operation mode temperature needs to be set beforehand so that the outing function turns on the air condition er with your desired operation mode temperature setting If the room temperature rapidly changes the room temperature may get over the upper or lower limit when the outing func tion is activated The outing function is invalid during FAN AUTO operation mode amp The air conditioner s stop order stated in above is valid only wh
137. oor heat exchanger has not become clogged or blocked Remove any objects that impede the flow of air If the operation is cooling operation check that an air short circuit has not occurred at the outdoor unit The status is OK as long as the temperature in the area around the outdoor unit does not become abnormally high during operation If the operation is cooling operation check that the outdoor unit fan has not failed Check that the screws which fasten the fan have not become loose Check that the fan connector has been securely inserted into the outdoor unit PCB If the operation is heating operation check that the indoor unit air filter has not become clogged If it is clogged clean it If the operation is heating operation check that an air short circuit has not occurred at the indoor unit The status is OK as long as the temperature in the area around the indoor unit air intake does not become abnormally high during operation If the operation is heating operation check that the indoor unit fan has not failed Check that the refrigerant circuit has not become clogged Check that all the service valves are fully opened Check that the welded connections are not clogged Check that the mechanical valves have not failed Check whether or not mechanical valve 3 makes a grinding sound when the power is reset At the indoor unit the mechanical valve is located at a position where it is difficult to hear so this check should be made electron
138. or compressor failure PExample 19 i O Notes Use a tester to measure the voltage between the DCCT output terminal on the rear of the PCB and the ground If the voltage is not within 2 3 V then the DCCT has malfunctioned 25 in 3 Trouble Diagnosis 4 Blinking AN Inspection Display on the Remote Controller CAUTION Currently the blinking inspection display can be displayed only on the wired remote controller and system remote controller Blinking A inspection display 1 Automatic backup Alarm code Blinking N inspection display Alarm meaning Automatic backup is in progress A C units can be operated Status The compressor at one of the outdoor units where the outdoor unit fan is running should be operating Blinking inspection display also occurs when seizing of the compressor magnet SW is detected Because this may also be the case refer to Blinking inspection display 2 compressor magnet SW seizing detection Alarm conditions When alarm P16 P22 P26 P29 Hx1 Hx2 or H31 has occurred correcting the control device remote controller etc input engages this mode Probable cause Because alarm P16 P22 P26 P29 Hx1 Hx2 or H31 has occurred check the alarm history then refer to the corresponding items Follow the instructions in the corresponding items to correct the trouble Recovery After repairing the malfunctioning locations reset the power for the system all outdoor units Caution Aut
139. or unit main sub control wiring was cut 2 After initial communications were completed the outdoor unit power was turned OFF Check Correction Example Notes Trouble Diagnosis 3 W 3WAY VRF Alarm Codes E25 Alarm Alarm code Outdoor unit address setting failure duplication Alarm conditions Communication by the outdoor unit main sub control wiring was received that contained the same address as that unit 5 times or more within 3 minutes Probable cause The unit number is set incorrectly Check Check the unit number again Correction Correct the incorrect unit number setting Notes Recovery from this alarm occurs automatically when communication that contains the same address is not received for 3 minutes E26 Alarm Alarmcode EG O O Alarm meaning Mismatch in outdoor unit quantity After power initialization the set outdoor unit quantity did not match the number of outdoor units detected on the outdoor unit main sub control wiring for 3 minutes or longer 2 The outdoor unit main sub control wiring is cut 2 Check the outdoor unit main sub control wiring 2 Repair the outdoor unit main sub control wiring Example 19 Notes Recovery from this alarm occurs automatically when the set outdoor unit quantity matches the number of outdoor units detected on the outdoor unit main sub control wiring E29 Alarm Marmeode E293 Alarm meaning Outdoor unit sub failed to receive signal from outdoor unit main
140. ould be located in an accessible place for control Never cover the remote controller or recess it into the wall 1 When you open the decorative cover Fig 2 4 you will see 2 gaps under the remote controller Insert a coin into these gaps and pry off the back case 2 Attach the back case with the 2 wood screws provided Using a screwdriver push open the cut outs on the back case These holes are for screws Fig 2 5 3 Connect the remote controller wiring 2 wires correctly to the corresponding terminals in the electrical component box of the indoor unit 4 To finish fit the back tabs of the case into the remote controller and mount it E Basic Wiring Diagram amp Connection diagram Terminal board for Remote indoor unit remote controller controller wiring unit Connector Power wire from remote Remote controller wiring controller unit field ate Fig 2 1 Remote Control Functions 3 Timer Remote Controller Use AWG 20 to AWG 16 wires Provided wire joint white Remote controller wiring can be extended to a maximum Remote controller wiring of 1640 ft 1 Strip the insulation to approximately 35 64 from the ends mg of the wires that will be connected 2 Twist together the 2 wires and create a crimp connection Power wire from remote at the wire joint pon OveE nN om joint 3 If a special crimping tool is not used or if the connection Fig 2 2 is soldered insulate the wires using insulation tape R
141. primary current A MOV1 pulse STEP Discharge temp 3 at Compressor 3 F MOV 3 pulse STEP Heat exchanger liquid 3 F Suction temp oF Oil 2 F Hz Actual operating frequency je w 2 w we KA ht j w EA Und a k Jr me Vad X je w KA jew re y w XI lan jao wy EN ID soy rim ED ay r a mad ve I r pr U a j X p wy ae De al NE MP Vand X ba pene md Og ju X j gt w na hr hatet ma ad a a jew wy ne EN LA w ine re P A K J m or o NOD we EN cal Meal m e oo pen pe on Vad Vad lad me me m ea ea Am Am ea Am gt Q ee m T OA and subsequent items are outdoor unit data OA 22 are for unit No 1 2A 42 are for unit No 2 6 7 Service Checker 1 Outdoor Unit Maintenance Remote Controller 1 5 Outdoor Unit Alarm History Monitor Recalls and displays the outdoor unit alarm history This is for the outdoor unit only Indoor unit alarms cannot be recalled The indoor unit alarm history can be viewed on the indoor unit remote controller or other controller lt Operation procedure gt Press and hold the CHECK button and SET button simultaneously for 4 seconds or lon ger to engage outdoor unit alarm history mode During temperature
142. quency overcurrent alarm P29 Inverter compressor missing phase or lock alarm Contents TENTATIVE Service Checker 6 SERVICE CHECKER 1 Outdoor Unit Maintenance Remote Controller n rnanxrnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnennnnennnnennnnen 6 2 1 1 Over View rararenarennnennrnnnrnnnnnnunenanennnennnrnnnsnnnnenunennnennnennernnnsnnnsenunennnennnennennnusnnnsenunennnennn 6 2 PE FUNCION Sercem eeri nteeccdccunt RE DEEN AEA ETEA EE E EEEE EE EEA OET EERDE 6 2 1 3 Ordinary Display Controls and Functions rrrarrrnanernanernanennnnennnnnnnnrnnanennnnennanennnnennnne 6 3 1 4 Monitoring Operations r rrnrrrrnrrrrranrernnnrnrnnnennnnrnnranennnnnennansennnnsnnnnnennansennnsennnnsennnssennnn 6 7 1 5 Outdoor Unit Alarm History Monitor rrrrnannennnnnrnranenrnnnernannrnnnnnnnnnnennannennnnennnusennnnsennnn 6 8 1 6 Setting the Outdoor Unit EEPROM Data arrrnnnnnnnannrnnnnnnnnnnennnnnnnnnnennnnnenvnnennnnnennnnsennnn 6 9 Service Checker 1 Outdoor Unit Maintenance Remote Controller 1 1 Overview E About the outdoor unit maintenance remote controller The outdoor unit utilizes non volatile memory EEPROM on its PCB This allows EEPROM data to replace the setting switches that were present on previous PCBs The outdoor unit maintenance remote controller is used to set and change these EEPROM data In addition to setting and checking the outdoor unit EEPROM data this remote controller can also
143. r conditioner regularly at five minute intervals If the signal from the wireless remote control unit stops for more than ten minutes due to the loss of the wireless remote control unit or other trouble the air conditioner will switch to the temperature sensor which is built into the indoor unit and control the room temperature In these cases the temperature around the wireless remote control unit may differ from the temperature detected at the air conditioner s position When low fan speed is selected and the air conditioner is in cooling opera tion at a low outdoor temperature of less than 50 F the air conditioner may automatically switch to medium fan speed to prevent freezing Remote Control Functions 2 Wireless Remote Controller 2 2 Receiver The signal receivers with the exception of the separately installed signal receiver are mounted on the indoor units X XM types A T types Separately installed signal receiver U D types RCU SUB PCB CHK TEST RUN mr RCU MAIN NORMAL This section picks up infrared signals from the wireless remote control unit transmitter Indication lamps One of these lamps will blink when trouble has occurred When an indicator lamp starts to blink refer to Trouble Diagnosis on page 2 14 B Operation lamp This lamp lights when the appliance is turned on C Timer lamp This lamp lights when the system is being
144. r other trouble Resistance of 10k 200k is normal Resistance of more than 200kQ indicates an open circuit or other trouble e Connect a gauge to the high pressure outlet and check for chenges in the value displayed by the monitoring software and for large deviation of the gauge pressure During heating check whether the temperature is lower than the highest indoor unit E1 temperature The pressure detected by the high pressure sensor is the highest pressure in the system Therefore during heating the converted saturation temperature will never be lower than any indoor unit E1 temperature During cooling this temperature will never be lower than the outdoor unit liquid temperature 2 Failure to open the service valve clogged tubing valve leakage over charging in all of these cases an alarm occurs when there are rapid pressure fluctuations and tracking of the detected pressure is poor e Check the open closed status of the valve e Check for clogging of the tubing To check for clogging disconnect the high pressure sensor from the PCB and check whether the high pressure SW activates e Check for valve leakage and over charging When valve leakage or over charging occurs refrigerant is likely to accumulate in the outdoor units or indoor units resulting in a sudden rise in pressure at start that occurs before the refrigerant in the heat exchanger is discharged The representative valves to check are the liquid valves and m
145. receiver any position inside indoor unit A T types The address switch For positions 1 2 and 3 set the Position of in the operation knob to the left conversely for 4 5 address switch on area may be set to and 6 set the knob to the right signal receiver any position inside indoor unit K type The address switch Position of in the operation address switch area may be set to inside indoor unit any position For positions 1 2 and 3 set the knob upward 1 conversely for 4 5 and 6 set the knob downward ON U D types The address switch For positions 1 2 and 3 set the Position of in the operation knob to the left conversely for 4 5 address switch in area may be set to and 6 set the knob to the right signal receiver any position Wireless remote control unit for XM type does not have the function of address switch Remote Control Functions 2 Wireless Remote Controller 2 6 Emergency Operation In any of the following events use the Emergency operation button to operate the air conditioner on a makeshift basis e When there is no charge remaining in the wireless remote control unit s batteries e When the wireless remote control unit has failed e When the wireless remote control unit has been lost or misplaced X XM types Initiate operation using the Emergency operation button in the operation area of the indoor unit Operation Press the Emergency operation button The air conditioner init
146. ress Setting Basic wiring diagram Example 1 e If link wiring is not used The inter unit control wires are not connected to multiple refrigerant systems Indoor unit addresses can be set without operating the compressors No 1 main outdoor unit settings No of indoor units 10 units setting S004 ON ae System address system 1 setting 5005 No 2 sub unit No 3 sub unit No of ees sje Unit BK Unit Knet outdoor ON ON Unit number su en number T number f units 3 units M g 5 setting Bgg 0 setting setting kA setting r 2 alorr UnitNo 1 7 Flo Unit No 2 3 Unit No 3 Leave the socket that q is used to short circuit a nl the terminal plug nl Outdoor Unit No 1 CNO03 l No 3 Main Outdoor main sub Sub Outdoor main sub Sub control wiring control wiring Inter unit control wiring Indoor Unit 1 1 Remote controller Remote controller cross over wiring Case 1 E 1 Automatic Address Setting from the Outdoor Unit 1 To set the number of outdoor units on the outdoor main unit control PCB set the No of outdoor units DIP switch S006 to ON ON ON m m 3 units and set the unit No DIP switch S007 to H unit No 1 main outdoor unit 1 2 3 OFF 2 3 unit No 2 3 2 On the No 2 sub unit control PCB set the unit No switch S007 t om TE On the No 3 sub unit control PCB set the unit No switch S007 t m unit
147. rminals may be short circuited If the pressure is 551 psi or higher the terminals will be short circuited When they have been short circuited they remain short circuited until the pressure decreases to 456 psi n OONOOOFWN The check valve installed on the compressor discharge side tubing has malfunctioned The service valve is closed The outdoor unit heat exchanger became clogged during cooling operation An air short circuit occurred in the outdoor unit during cooling operation The outdoor unit fan malfunctioned during cooling operation The indoor unit air filter became clogged during heating operation An air short circuit occurred in the indoor unit during heating operation The indoor fan failed during heating operation The refrigerant circuit has become clogged The mechanical valve failed The solenoid valve kit failed Refrigerant overcharge has occurred The high pressure switch failed Check that the high pressure switch connector is connected securely If it is connected securely then connect a pressure gauge to the high pressure outlet and monitor the high pressure while operating the system Check the pressure at the time when the high pressure switch operates If the pressure is less than 479 psi then it is possible that the check valve has failed The following concern cases in which the pressure is actually too high If the operation is cooling operation check that the outd
148. s setting be performed in Heating mode Is it OK to start the compressors Turn ON the indoor and outdoor unit power Short circuit the automatic address pin CN100 on the outdoor main unit PCB for 1 second or longer then release it Start indoor and outdoor unit heating operation LED 1 and 2 blink alternately NO YES YES CASE 3A Make necessary corrections Refer to Table of Self Turn OFF the indoor and outdoor unit Test Run Items to Check Before the Test Run 1 Turn the remote power switch on at least 5 hours before the test in order to energize the crankcase heater After performing the leak inspection applying vacuum and per forming refrigerant charge for the tubing which is connected on site fully open the outdoor unit service valve However if only one outdoor unit is installed a balance tube is not used Therefore leave the valve fully closed 3 When replacing the control PCB be sure that the settings on the new PCB match those on the old PCB 4 Use caution when making the settings If there are duplicated system addresses or if the settings for the Nos of the indoor units are not consistent an alarm will occur and the system will not start NO 2 5 These settings are not made on the indoor unit PCB NO CASE 1 Note It is not necessary to remove the socket that is used to short circuit the terminal plugs from the outdoor sub unit PCBs 1 The unit with the
149. scharge tube Suction tube 1 Test Run 1 2 Test Run Procedure lt Outdoor unit control PCB gt Unit No setting switch S007 lt Outdoor unit control PCB gt Unit No setting switch S006 lt Outdoor unit control PCB gt Unit No setting switch S004 and S005 Check the link wiring lt Outdoor unit control PCB gt Unit No setting switch S002 and S003 NO Short circuit the mode change pin CN101 on the outdoor main unit PCB At the same time short circuit the automatic address pin CN100 for 1 second or longer then release it Start indoor and outdoor unit cooling operation LED 1 and 2 blink alternately Is it OK to start the compressors Turn ON the indoor and outdoor unit power 2 Are LED 1 and 2 on the outdoor unit PCB OFF Recheck the items to check before the test run Have the outdoor sub units been connected Set the unit address Set the No of outdoor units Set the No of indoor units Are the inter unit control wires connected to more than 1 refrigerant system YES Set the system address When multiple outdoor main units exist disconnect the terminals extended from the shorted plugs CN003 at all outdoor main unit PCBs except for 1 Alternatively move the sockets to the OPEN side Is it possible to turn ON the power only for the 1 refrigerant system where the test run will be performed NO Will automatic addres
150. sensor is not disconnected and that the circuit is not open Correction If insufficient oil is a possibility then charge with additional oil ee If it is clear that a valve failure has occurred replace the valve Trouble Diagnosis 3 W 3WAY VRF Alarm Codes H31 Alarm Alarm code HIG trouble alarm Alarm conditions This alarm occurs when the microcomputer identifies a trouble signal indicating abnormal HIC temperature or other trouble from the HIG The HIC judges the current and temperature and outputs the trouble signal In general this indicates trouble with the HIC itself Probable cause Overcurrent in HIC circuit and resultant abnormal heating caused by HIC failure Check Check the power wiring and connector wiring If the wiring and connectors are normal use a tester to measure the resistance between the compressor HIC power HIC and ground HIC If there is a short circuit there is an HIC malfunction HIC HIC SI DONT TOUCH lig Seca 7 eee wo z gt D ok e FALBIB100700 0 m Ee SRG bananana 2 HIC CHDx14053 ll pce assy Fl HIC PCB If an HIC failure is found replace the PCB Turn OFF the power and check the continuity of HIC and HIC on the HIC PCB L04 Alarm Alarm code L04 Alarm meaning Outdoor unit refrigerant system address duplication Alarm conditions Communication by inter unit control wiring was received that contained the same address as that u
151. sensor resistance Check that the sensor is operating normally Use a remote controller monitor or PC monitor to check the temperature that is recognized by the microcomputer Correction Example Notes F16 Alarm Alarm code Alarm meaning High pressure sensor trouble abnormal rise in high pressure In some cases this may not be the result of a high pressure sensor malfunction Alarm conditions High pressure SW activated although the detected pressure was lower 3 03 MPa or below than the high pressure SW activation pressure Undershift High pressure SW failed to activate although the detected pressure was higher 3 43 MPa or above than the high pressure SW activation pressure Overshift The saturation temperature at the detected pressure is 5 C or more below the highest indoor unit E1 temperature continuously for 30 minutes High pressure sensor disconnected or open circuit 1 High pressure sensor malfunction Failure to connect the connector to the outdoor unit PCB Failure to open the service valve Clogged tubing Valve leakage Probable cause Over charging Outdoor unit PCB failure 8 Electrical noise 2 3 4 5 6 7 Continued Trouble Diagnosis 3 W 3WAY VRF Alarm Codes 1 High pressure sensor failure e Check the sensor resistance value Use a tester and measure the resistance between sensor No 1 and No 3 Resistance of less than 10kQ indicates a short circuit o
152. system controller Serial Error in transmitting serial Indoor or main outdoor unit is not oparating correctly communication communication signal Mis wiring of control wiring between indoor unit main outdoor unit and errors system controller Mis settin T 9 Error in receiving serial Indoor or main outdoor unit is not operating correctly communication signal Mis wiring of control wiring between indoor unit main outdoor unit and system controller CN1 is not connected properly Activation of Protective device of sub indoor When using wireless remote controller or system controller in order to protective unit in group control is activated check the alarm message in detail connect wired remote controller to device indoor unit temporarily 1 Alarm messages in lt lt gt gt do not affect other indoor unit operations 2 Alarm messages in lt gt sometimes affect other indoor unit operations depending on the fault 1 16 Contents TENTA TI VE Remote Control Functions 2 REMOTE CONTROL FUNCTIONS 1 Main Operating Functions Lasses 2 2 1 1 Room Temperature Control ccccccecccceeeeeeeececeeeeeceeeeeeeceseeeceseueeeseesesseeesegeesaeeeessaes 2 2 1 2 Automatic Control for Heating and Cooling cccccccccceseeeeeeeeeeeeesseeceeeeeeeseeeeeseeseesaaaes 2 3 2 Wireless Remote Controller uunsuaransmessddmneneiueendvmneosdrnon 2 4 2 1 How to Use the Wireless Remote Controller ccccccccsesc
153. t it to the NORMAL position and 2 switch set to ALL OFF cancel the operation O Have the wireless remote control unit s If they have replace them with new ones batteries run down Do the indication lamps show a cooling heating Change the operation mode mismatch or is the auto cooling heating function not available Auto cooling heating or heating appears on the display even though the air Change the setting of the wireless remote conditioner is a cooling only model control unit s slide switch See page 2 9 An indicator lamp is blinking Operation Timer Preparing for Some kind of trouble has occurred in communication between the signal operation receiver and indoor unit Alternatively the wrong address has been set o e when a wired remote control unit is used Operation Preparing for e Some kind of trouble has occurred in communication between the indoor nami unit and outdoor unit o N e 4 N Operation Preparing for e The indoor unit s protection device has been activated Alternatively the ae auto flap connector of the ceiling panel has been disconnected O AR Operation jr for The outdoor unit s protection device has been activated operation VE ZN Contact your dealer pe for e Something is wrong with the temperature sensor operation Operation for e The outdoor unit s compressor has been protected operation Operation Jed for e A trial run mode is und
154. the copy destination 1 3 5 5 2 5 4 3 If r is pressed in the mode of selecting the copy source tion of the program timer r gt 2 T 4 it enters the copy mode Selecting the copy destina SETTING Su Mo Tu We Th Fr a i 4 Press a v to select the day of the copy source Then press r to complete copying and return to the program checking mode IE Su Mo Tu We Th Fr Sa r 3 The program will be overwritten if the preprogrammed day is selected as a copy source amp Before Asking Repair Work Before asking repair work please check the followings ERROR is displayed when the If there is another TIMER No which has the program of the same time and same day you cannot overlap the minute digits are entered setting The set data is not stored The stored programs are automatically sorted by the time Check if the data is stored in the other TIMER No 7 Check if the time indication is not When the time is invalid the program is also invalid Program does not function SENER Check the remote controller prohibition inside In that case the program is invalid Remote Control Functions 3 Timer Remote Controller 3 12 Outing Function Outing function is a function that prevents the room temperature from increasing too much or decreasing too much when no one is in the r
155. the flow chart described on page 1 3 Check that there are no problems with indoor unit sensors E1 and E3 when performing Auto Address Setting Case 3A or Case 3B in the flow chart described on page 1 3 Check that there are no indoor units where the system address was already incorrectly set O by manual or automatic address setting When automatic address setting is started from the outdoor unit control PCB or from the remote controller Nam SETTING appears on the remote controller at units where the inter unit control wiring and remote controller wiring are connected correctly LED 1 and 2 on the outdoor unit control PCB blink alternately eIn the case of indoor unit group control if there is a mistake in the group control wiring addresses may not be set even if B l SETTING appears Even if alarm E15 or E16 appears addresses are set at those indoor units which could be verified The set addresses can be checked using the wired remote controller e If one of the below alarms appears when the remote controller is operated after automatic address setting was completed LED 1 and 2 on the outdoor unit control PCB are turned OFF follow the instructions in the table below and correct the problem location Remote controller display Cause Nothing is The remote controller is not connected correctly power trouble displayed The indoor unit power was cut off after automatic address setting was completed The re
156. time flash De PROGRAM 2 Set to today s day of the week PROGRAM Press a to move g flashing on the display in the order of Su Mo Tu Press vw to move it in the order of Su gt St gt Bie While in time setting mode the temperature setting buttons function as changing day button 3 Press to change the present hour in the range of 0 to 23 3 4 1 3 4 2 Set the present hour and press fq J J The hour digits light up and the minute digits start flashing If the clock uses the 12 hours AM PM setting the hour is displayed in the range of AM 0 to 11 PM 0 to 11 4 Press v to change the present minute in the range of 0 to 59 Set the present minute and press fa The day and time are set and finishes the setting mode e The unit returns to the normal mode if amp is pressed or there is no operation made for 3 minutes during the setting In this case all the settings in progress will be lost e If the present time is invalid is displayed If the power failure for more than 1 hour occurs check if the set data of day and time are valid SETTING SETTING Remote Control Functions 3 Timer Remote Controller 3 11 Weekly Program Function Checking Weekly Timer Set the weekly program assigning a given timer to each day of the week Maximum of 6 programs a day and 42
157. tiple units Alarm conditions Current is detected in the CT circuit when the compressor is stopped 1 This control is not engaged for the first 30 seconds after the compressor turns ON gt OFF 2 For 1 minute following the first 30 seconds after the compressor turned ON OFF the threshold for the detected current is 10 Aor more continuing for 2 seconds 3 All times other than the above e If the low pressure SW has not activated the threshold for the detected current is 7A or more continuing for 5 seconds e If the low pressure switch has activated the threshold for the detected current is 7 A or more continuing for 2 seconds Probable cause 1 Magnet SW malfunction e The magnet SW has seized and the compressor is continuing to run Even when the power is turned OFF the primary side and secondary side contacts remain together e The conditions of magnet SW operation are poor difficult to open When a magnet SW is used in a DC circuit it may be difficult for the SW to open at times In an AC circuit the magnet SW should open instantaneously as long as the current is within the allowable range However this kind of trouble can occur if excessive current flows and may prevent the SW from opening 2 CT circuit failure or PCB failure A D failure e CT circuit contact failure Check that the connector is not partially disconnected Wiggle the connector to check the connection These symptoms will not occur if the connector is
158. to set At this time the fan at the indoor unit begins operating 3 Use the temperature setting buttons to select item code 5d Press the timer time a v buttons to select the desired setting data For item codes and setting data refer to Table 1 Table 4 5 Press the button The display stops blinking and remains lit and setting is completed TN If air blocking material is used use the same procedure as in steps 3 5 above and change the setting for item code 62 Failure to make this setting may result in to 0000 To change the selected indoor unit go to step 2 decreased airflow and condensation Press the button to return to normal remote controller display R C No SETDATA PROGRAM COPY ZN A7 E Table 1 Table of DC Fan Motor Tap Settings 4 way Air Discharge Semi Concealed type Setting No Remote controller setting data Purpose of use names of accessories 0000 Standard setting at time of shipping High ceiling setting 1 for standards panel Super long life filter Oil guard panel 0001 Oil guard panel with raising lowering grille Ammonia deodorant filter Optical regeneration deodorant filter High ceiling setting 2 for standards panel Ceiling panel with special raising lowering grille for high locations High performance filter 90 by JIS colorimetric method High performance filter 65 by JIS colorimetric method Air cleaning unit are
159. tomatic address setting operation 5002 Rotary switch 10 positions black Outdoor system address setting switch e The setting is 1 at the time of shipment It is not necessary to change the setting if wiring is connected only to an outdoor unit and indoor units in a single system and the inter unit control wiring does not cross multiple systems If wiring links the inter unit control wiring for multiple systems to the same communications lines then a different address must be set for each refrigerant tubing system If wiring links multiple systems a maximum of 30 systems up to 64 indoor units can be connected This setting can be set up to 39 however control will be for 30 systems even if the setting is set to higher than 30 An alarm will be displayed if system addresses are duplicated For details refer to Table 1 5003 DIP switch 2P blue Switches for setting system address 10s digit and 20s digit e If 10 systems or more are set the setting is made by a combination of this DIP switch and 5002 e If 10 19 systems are set set switch 1 10s digit to ON e f 20 29 systems are set set switch 2 20s digit to ON and set switch 1 10s digit to OFF e f 30 systems are set set both switch 1 10s digit and switch 2 20s digit to ON For details concerning S002 and 5003 refer to Table 1 S004 Rotary switch 10 positions red Switch for setting the number of connected indoor units In order to allow the outdoor unit to manage
160. trol wiring Inter unit control wiring A EE NS Indoor unit To other system link wiring N Remote controller Remote p cross over wiring controller Make settings as appropriate for the cases listed below Refer to the instructions on the following pages Indoor and outdoor unit power can be turned ON for each system separately Indoor and outdoor unit power cannot be turned ON for each system separately Automatic address setting in Heating mode Automatic address setting in Cooling mode Case 3B Test Run 3 Auto Address Setting Automatic Address Setting no compressor operation Indoor and outdoor unit power can be turned ON for each system separately Indoor unit addresses can be set without operating the compressors Automatic Address Setting from Outdoor Unit ON 1 On the No 1 main unit control PCB set the unit No switch S007 to ae unit No 1 1 3 O i On the No 2 sub unit control PCB set the unit No switch S007 to pil unit No 2 Li 2 3 On the No 3 sub unit control PCB set the unit No switch S007 to unit No 3 E ol E om 2 To set the number of outdoor units on the outdoor main unit control PCB set the No of outdoor units DIP switch S006 to ON ON ll 3 units 1 2 3 OFF 3 On the outdoor main unit control PCB check that the system address rotary switch S002 is set to 1 and that the DIP ON ON switch S003
161. unction when operation is started At this time an air conditioner does not stop at outing function 3 Timer Remote Controller 3 13 Sleeping Function This function leads you to a comfortable sleep and chang es the room temperature during your sleep You can set the off timer every one hour from 1 to 10 hours Operating time Display of remote control unit during the time setting UNIT NEXT SE No Su Mo Tu Ne Th 3 Sleeping function Off time In case the present time indication is 23 00 Display of remote control unit dur ing sleeping function del Sleeping function indication If no operation is made for 3 minutes the time setting mode will be automatically finished Ex In case of 7 hours timer 1 Press amp Each time the button is pressed the indication changes in the following order 0 Li mm TE 057010 9 Don i Pr 64 PP 71 every one hour Press amp to stop the time setting Press SET The sleeping operation starts Remote Control Functions When the off time comes amp The indoor unit stops The temperature returns to the setting at the time when sleeping function operation started To cancel the sleeping function operation Press The temperature setting remains at the time cancelled amp The following buttons also cancel the sleeping function oe Stop the indoor unit after the sleeping function operation is cancelled
162. unit Thermal protector in indoor unit fan motor is activated lt lt P01 gt gt ready lamp blinking device Float switch is activated lt lt P10 gt gt i aa Fan inverter protection function activated lt lt P12 gt 9 xt xt Oxygen O2 gas sensor activated P14 Outdoor unit Compressor 1 INV discharge temp trouble PO3 High pressure switch or Overload Protector OLR P04 Reverse phase missing phase detected P05 l DCCT ACCT overcurrent compressor less than 80 Hz P16 Se Compressor 2 constant speed discharge temp trouble P17 alternately Outdoor unit fan trouble P22 x e xt DCCT ACCT overcurrent 80 Hz or more P26 Start failure caused by compressor wire missing phase DCCT P29 failure or similar problem INV compressor start failure Failure of nonvolatile memory IC EEPROM on indoor unit control PCB ee imer F29 smale 374 it Failure of nonvolatile memory IC EEPROM on outdoor unit control PCB Operating and timer lamp blinking simultaneously KE KE O Protective Overload current detected Compressor 2 constant speed H11 device Lock current detected Compressor 2 constant speed H12 No current detected when Compressor 1 INV HO3 i compressor was ON Compressor 2 constant speed H13 Timer lamp blinking Disch t Er PES Compressor 2 constant speed H15 xt Outdoor unit protection HIC trouble alarm H31 Connection failure of oil detection sensor Compressor 1 I
163. unit in the next different system short circuit the automatic address pin CN100 for 1 second or longer then release it Repeat the same steps to complete automatic address setting for all units 8 Operation from the remote controllers is now possible To perform automatic address setting from the remote controller perform steps 1 5 then use the remote controller and to complete automatic address setting Refer to Automatic Address Setting from Remote Controller Test Run 3 Auto Address Setting Automatic Address Setting in Cooling Mode Indoor and outdoor unit power cannot be turned ON for each system separately In the following automatic setting of indoor unit addresses is not possible if the compressors are not operating Therefore perform this process only after completing all refrigerant tubing work Automatic address setting can be performed during Cooling operation Automatic Address Setting from Outdoor Unit 1 OD Perform steps 1 4 in the same way as for Turn the indoor and outdoor unit power ON at all systems l To perform automatic address setting in on the outdoor main unit control PCB in the refrigerant system where you wish to set the addresses short circuit the mode change 2P pin CN101 At the same time short circuit the automatic address pin CN100 for 1 second or longer then release it Be sure to perform this process for one system at a time Automatic address settings can
164. useema de keel sects adesendeanandeesiindedabepeetabieesdneds 2 21 3 11 Weekly Program Function EEE denne teseneuiinaduatineniaeueeneizen 2 22 312 TN 2 27 PL EFN 2 29 3 14 Wired Remote Controller Test Run Settings rrrrnnrnnnvrnnnnnvvnnnerenrnnnrennnnrrernnnnennnnnne 2 30 3 15 Simple Settings Nr 2 31 3 16 Detailed Settings Function wx ciiccscsiecteocdocnqass lt nodsannsecioaagesonsiods xduceadeainancawessusieuaeinbeltameeesteeds 2 33 3 17 Remote Controller Servicing Functions a rrvrnnnnvrvnnnnernnnnnenvnnnnvnnnnnsvnnnnnsnnnnnnennnnnnee 2 40 Remote Control Functions 1 Main Operating Functions 1 1 Room Temperature Control The thermostat is turned ON OFF according to T as shown below T Room temperature Set temperature When remote controller sensor ican Room temperature Temperature detected by the remote controller sensor When body sensor is used Room temperature Temperature detected by the body sensor Intake shift temperature Intake shift temperature enabled only during heating During heating a difference in temperature occurs between the top and bottom of a room This value is set in consideration for the difference between the temperature detected by the body sensor and the temperature at the bottom of the room lt Value set for intake shift temperature at time of shipment gt 7 F The shift temperature can be selected in the range of 0 18 F by using the remote controller
165. without fail If it is kept at the OFF setting the signals from the wireless remote control unit will not be accepted 2 12 Remote Control Functions 2 Wireless Remote Controller U D types Initiate operation using the Emergency operation button in the signal receiver 1 Press the Emergency operation button The air conditioner initiates a cooling operation when its operation is started up at a room temperature of 75 F or above Conversely it initiates a heating operation when its operation is started up at a room temperature below 75 F 2 When the SWING button is pressed the air direction is automatically switched from upward to downward or vice versa Press the Emergency operation button once more Remote Control Functions 2 Wireless Remote Controller 2 7 Trouble Diagnosis Check out the following points before requesting service The air conditioner Is the air conditioner in the shutdown mode or Press the wireless remote control unit s does not run even was the switch operated after a power failure ON OFF operation button again when the ON OFF operation switch has How about the local power switch If it was off set it now to on been set to ON Have any of the fuses blown If a fuse has blown contact your dealer Is the ON timer operation mode established Clear the timer operation O x If the signal receiver s NORMAL ALL OFF If it is se

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