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Panasonic E18NKUA Service Manual

1. N3389 MOTT3A NH MTA AvH9 AH9 ALIHM LHM NIYIN AlddNS H3MOd MOTIJA MIA H3TIOHLNOO H3TIOHINOO OINOHIOSI3 iiy 3ONVHO 9HO DINOH12313 RENS 3078 TM dSIG NO b 8 we x HOON HOLWHOdWAa EC HLN T LINDHI NOILWOISILOSY NH9 MTA TVNINH31 9 DNIONNOHD ET Ge 19 NOLLVOINNNNOI TRA 1 5 _ S _ ve 0201 Q He SS NHD NED 3504 3 SS B gt gt 8 OF TEM sek 2 THM LII TIHA 2 mrd HALI 3SION 9050 Ona o 90EOV 421702 5 TVNINH31 LHM hogen vere 1 1063614 J o 9999 14 HOLSIINH3H L HOSN3S Outdoor Unit 8 2
2. al 9 120 MOLSTNNIHL 195 I LUI wosnas 1 NOIIOnS LAHOR HOLS IWYSHL DNIdld MOLS TWYIHL 2 9 1919 5 Het X MTA N1S NO LHM dSIG NO 02031 K INAHIMOd 802031 K L3IND K 580 102037 K Nd9 HIMOd AVTdSIQ 437103109 2INOYLIITI jam I INO NO 1 1 81 LONS A NIV 437103109 9110810373 LHM L THM I oT LHM 212 TET e AlddNS HIMOd H3TIOHINOO 19313 LHM W4 NO 1 1063814 ere HOLON gt HOIYHOdVAJ LINOHIO WNIWHAL D ERI ER NOLLYOINANNOS VIVONO ve 2 201 NUD 3914 dWIL LINDHI HALI 3SION LHM e quvog WNINHAL LINN OL 16 Outdoor Unit 9 2 dO1SINH3H1 HOSN3S 39dVHOSIq HOLSINHYIHI HOLSIINH3H OLL3NOVIV OHLO3T3 HOSN3S ANL HOSN3S HIV HOOALNO
3. EEE 30 20 10 HE N EG BB HEE 32 68 86 Temperature F 50 14 104 Bd 122 Check the indoor pipe temperature characteristic e Replace the indoor main PCB Sensor Thermistor Characteristics 58 NO F11 Indoor Pipe Temperature Sensor Abnormality sensor For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Correct loose or broken cable connector Replace the indoor pipe temperature sensor The problem still occur after replacing the 15 4 13 F90 Power Factor Correction Protection Malfunction Decision Conditions e During startup and operation of cooling and heating when Power Factor Correction PFC protection circuitry at the outdoor unit main PCB senses abnormal high DC voltage level Malfunction Caused DC voltage peak due to power supply surge voltage peak due to compressor windings not uniform e Faulty outdoor PCB Troubleshooting When abnormality indication starts again For safety reason and to prevent component breakdown always Caution switch off the power before remove Check the supply voltaae and connect the component N Supply voltage as specified Correct the power supply YES Operate the system Verify PFC abnormality by measuring DC voltage b
4. REF NO PART NAME amp DESCRIPTION QTY CS E18NKUA CS E24NKUA REMARK 1 CHASSIS COMPLETE 1 CWD50C1637 2 MOTOR 1 ARW7663AC 3 CROSS FLOW FAN COMPLETE 1 CWH02C1077 lt 4 BEARING ASS Y 1 CWH64K007 5 SCREW CROSS FLOW FAN 1 CWH551146 lt 7 EVAPORATOR 1 CWB30C3963 CWB30C3967 8 FLARE NUT LIQUID 1 CWT251030 9 FLARE NUT GAS 1 CWT251032 CWT251033 11 HOLDER SENSOR 1 CWH32143 12 CONTROL BOARD CASING 1 CWH102505 lt 13 TERMINAL BOARD COMPLETE 1 CWA28C2357 14 ELECTRONIC CONTROLLER 1 CWA73C6805 CWA73C6806 15 ELECTRONIC CONTROLLER POWER 1 CWA746567 17 ELECTRONIC CON INDICATOR RCVR 1 CWA747108 19 SENSOR COMPLETE 1 CWA50C2989 20 CONTROL BOARD TOP COVER 1 CWH131350 21 INDICATOR HOLDER 1 CWD933021 22 CONTROL BOARD FRONT COVER 1 CWH13C1201 23 DISCHARGE GRILLE COMPLETE 1 CWE20C3049 24 FULCRUM 2 CWH621103 lt 25 VERTICAL 15 CWE241289 lt 26 CONNECTING BAR 1 CWE261156 27 1 CWE261158 lt 28 CONNECTING BAR 1 CWE261157 lt 29 CONNECTING BAR 1 CWE261159 30 CONNECTING BAR 1 CWE261160 31 AIR SWING MOTOR 1 CWA98K1014 32 AIR SWING MOTOR 1 CWA981241 34 DRAIN TRAY 1 CWH521096 lt 35 HORIZONTAL 1 CWE24C1295 36 BACK COVER CHASSIS 1 CWD933031B 37 REMOTE CONTROL COMPLETE 1 CWA75C3726 38 FRONT GRILLE COMPLETE 1 CWE11C4514 39
5. 3A AVA NOISNVdX3 AVM b 1100 1100 L YOLSINHSHL HOLSINHSHL OLL3NOVIV OHLO3T3 OLL3NOVIA OULOG TS e HOSN3S HOSN3S HOOALNO i ma I TVNINH31 NO GSLYOIGNI L L L 9 fone me SI S431137 Q3ZI 3HIN3H Yd 31IHM FLIHM ama FLIHM NNIINHSI ANOS 10 LOH N9 A3 NO 51 1OH H MYVNJAVHYLD i MS M NJOONI amg H31V3H JONVHO LA3 20 MOTTA LINDHI Klddns S 9 H3114 ASION H3T1OH1NOO 19313 HIMOd DNIHOLIMS 4 3LIHM 31IHM Oee LAJ NO LAJ NO 193 vee 1 LHW FLIHM r3snd THM OV LHM IHM NO LINOUIO Soret 1Inouto enm BALI 3SION Ovi Movia ENO 23904 101290 09 A y NOLIVOINDINNOO __ 409934409 MOTIJA MOTIJA 52 Did WOO NO WOO NO easn4 Move 3LIHW NIYIN H3TIOHLNOO OIN0H120313 0 21 1 21 ENOI 10 LNOV LHM NY AHO 9 NHS 2 L Z b ARO oz RIA TYNINHIL Xa 9 I I 8 i HOlOV3H LINN HOOQNI OL Alddfis 15 it Diagram ircul 9 Electronic C Indoor Unit 9 1 437109109 31034 al 4002 al
6. 24 29 34 39 44 49 54 59 64 69 74 79 Outdoor Air Temperature F 7 900 7 400 6 900 6 400 5 900 5 400 4 900 4 400 3 900 3 400 14 9 900 19 24 69 74 79 Outdoor Air Temperature F 9 400 8 900 8 400 7 900 7 400 6 900 6 400 172 000 162 000 152 000 142 000 132 000 122 000 112 000 102 000 92 000 82 000 72 000 62 000 52 000 v 9 69 74 79 Outdoor Air Temperature F 14 19 24 29 34 39 44 49 54 59 64 69 74 79 Outdoor Air Temperature F 73 Piping Length Characteristic Heating o o o o Room temperature Operation condition Outdoor temperature 68 F DBT High fan speed 47 F DBT 43 F WBT Compressor Frequency Fh 101 000 100 000 99 000 e 208 m 230 Excess 98 000 97 000 96 000 95 000 94 000 93 000 92 000 Outlet Air Temperature F 6 200 De 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft 6 000 5 800 5 600 5 400 5 200 Heating Capacity kW 5 000 4 800 4 600 105 600 105 400 105 200 10
7. Cover for Drain hose the right piping Install the indoor unit 2 Hooks at installation Hook the indoor unit onto the upper plate portion of installation plate Engage the indoor unit with the upper edge of the installation plate Ensure the hooks are properly seated on the installation plate by moving it in left and right Secure the Indoor Unit Sleeve for piping hole dl Drain hose 1 Press the lower left and right side of the unit against the installation plate until hooks engages with their slot sound click BS Units Installation hook plate To take out the unit push the marking at the bottom unit and pull it slightly towards you to disengage the hooks from the unit marking Insert the connecting cable Connecting cable 9 Gas side ES piping X Liquid side piping Guide Drain hose surface Connecting cable This can be used for left rear piping and bottom piping also Replace the drain hose Rear view for left piping installation PA Connecting cable Piping More than 45 9 32 Connecting cable ore than 45 9 32 i _ Drain cap Drain hose Adjust the piping slightly downwards Sleeve for piping hole How to pull the piping and drain hose out in case of the embedded piping In case of left piping
8. 13 1 1 Restart Control Time Delay Safety Control The compressor will not turn on within minutes from the moment operation stops although the unit is turned on again by pressing OFF ON button at remote control within this period e This control is not applicable if the power supply is cut off and on again e This phenomenon is to balance the pressure inside the refrigerant cycle 13 1 2 30 Seconds Forced Operation e the air conditioner is turned on the compressor will not stop within 30 seconds in a normal operation although the intake air temperature has reached the thermo off temperature However force stop by pressing the OFF ON button at the remote control is permitted or the Auto OFF ON button at indoor unit e reason for the compressor to force operation for minimum 30 seconds is to allow the refrigerant oil run in a full cycle and return back to the outdoor unit 13 1 3 Total Running Current Control When the outdoor unit total running current AC exceeds X value the frequency instructed for compressor operation will be decreased fthe running current does not exceed X value for 5 seconds the frequency instructed will be increased e However if total outdoor unit running current exceeds Y value compressor will be stopped immediately for 3 minutes Model E18NKUA E24NKUA Operation Mode X A Y A X A Y A Cooling Soft Dry A 10 85 19 30 12 47 19 30 Cooling Soft Dry B 9
9. 60 400 dete e 60 300 60 200 60 100 Outlet Air Temperature F 60 000 59 900 lt 59 800 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft 5 100 5 000 aa 4 900 4 800 im 4 700 Cooling Capacity kW 4 600 4 500 4 400 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft 149 000 147 000 145 000 143 000 141 000 Gas Side Piping Pressure PSI 139 000 137 000 135 000 m i 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft 7 300 7 100 SS 6 900 6 700 Current A 6 500 6 300 6 100 5 900 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft 72 Heating Characteristic o Room temperature o Piping length o Outlet Air Temperature F Current Heating A Capacity kW Gas Side Piping Pressure PSI Operation condition 125 000 120 000 115 000 110 000 105 000 100 000 95 000 90 000 68 F DBT High fan speed 24 6ft Compressor Frequency Fh e 208 m 230 l Wed cu 14
10. GRILLE COMPLETE 1 CWE22C1483 40 GRILLE DOOR 1 CWE14C1029 lt 41 E ION FILTER 2 CWD001283 42 SCREW FRONT GRILLE 4 XTT4 16CFJ 43 CAP FRONT GRILLE 3 CWH521194 lt 44 DRAIN HOSE 1 CWH851173 45 INSTALLATION PLATE 1 CWH361098 46 COMPLETE INSTALLATION SCREW 1 CWH82C1705 lt 47 OPERATING INSTRUCTION 1 CWF568726 48 INSTALLATION INSTRUCTION 1 CWF615170 50 AIR PURIFYING FILTER 1 CWD00C1141 52 BAG 1 CWG861498 53 SHOCK ABSORBER L 1 CWG713033 lt 54 SHOCK ABSORBER 1 CWG713034 lt 55 CASE 1 CWG565069 Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock 80 18 2 Outdoor Unit Q c amc 77 f 4 7 7 57 Ax 9 M 2413 79 A 0 N NN N 5 V KVA 7 lt lt EN The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts Note REF NO PART NAME amp DESCRIPTION QTY CU E18NKUA CU E24NKUA REMARK 1 CHASSIS ASS Y 1 CWD52K12
11. WAL 5NIdld o a 179 LOH NO 1109 1100 AN1VA NOISNVdX3 5 l L LOHAH 1522 8854 AS MOTIJA MOTI3A ALIM AS 9W4 00 MIA ONH 90 INJOC NO 39NvHO 940 9 ro 14 20 L HAB 3SION 1H NO inodo r 437104109 OINOHLO3T3 HIMOd 9NIHOLIMS NOl1vOI3ILO3H 3LIHM M IW4 NO_AS MENS 21 3LIHM Lot IHM 2V LHM IHM NO lt M Wong 3SION 4 1 MOVT Ma iowa 5 ag 2 d 2 5 NHO gre 0L NOILVOINNNINO2 __ 9 119419 vae 944 3std MIVT AVH MOTIJA MOTISA qat FLIHM NIV H3TIOHLNOO 2INOHLO3T3 0 21 AS WODNO WOONO AS ov INOW LHM AH NUS z 2 m 1 auvoa AWD T WNINH3L 312 9 V V DONE i HOLOV
12. YES Repair the pipe flare or union nuts Oil oozing out from the 2 3 way valve Reclaim and recharge refrigerant NO YES 7 Capillary tube dryer clogged e Replace the capillary tube or dryer Charge for a specified amount of fresh refrigerant Refrigerant cycle abnormality error again YES e Replace outdoor unit PCB 8 compressor NO Procedure complete 60 15 4 15 F93 Compressor Rotation Failure Malfunction Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused e Compressor terminal disconnect e Outdoor PCB malfunction Troubleshooting When F93 indication happens Turn off power supply Disconnect U V and W wires Check with inverter checker Normal YES 61 For safety reason and to prevent component breakdown always switch off the power Caution before remove and connect the component defective Replace outdoor unit PCB Replace compressor 15 4 16 F95 Cooling High Pressure Abnormality Malfunction Decision Conditions During operation of cooling when outdoor unit heat exchanger high temperature data 141 8 F is detected by the outdoor pipe temperature sensor Malfunction Caused Outdoor pipe temperature rise due to short circuit of hot discharge air flow Outdoor pipe temperature rise due to defective of outdoor fan motor Outdoor pipe
13. 9 10 1 Indoor Unit uu u un aun ua 18 dou BOM CONTO 10 2 Outdoor Unit 20 5 Dimensions 10 41 Installation 22 2 Stee ght ME 1 11 1 Select the Best Location 22 utdoor Unit 112 Indoor Outdoor Unit Installation Diagram 22 6 Refrigeration Cycle 12 11 3 Indoor Unit riter 23 7 Block Diagram 13 uu venete gee af 8 Wiring Connection 14 12 Operation 30 12 1 Basic Function 30 b Panasonic Appliances Air Conditioning M Sdn Bhd 2012 Unauthorized copying and distribution is a violation of law 12 2 Indoor Fan Motor Operation 31 12 3 Outdoor Fan Motor Operation 32 12 4 Airflow 32 12 5 Quiet Operation Cooling Mode Cooling Area of Dry Mode 33 12 6 Quiet Operation Heating 34 12 7 Powerful Mode Operation 34 12 8 Timer 35 12 9 Auto Restart Control 35 12 10 Indication Panel 35 13 Protection 36 13 1
14. electrical safety in case of the slipping Connecting Wires Control Board Cover Metal Control Board Front Panel lt Cover Resin Terminal Board Earth wire Earth wire longer than others longer than Particular others Plate wires Lock Nuts for safety reason reason Indoor amp outdoor cable connection Knockout Holes Particular Plate s opening holes 11 4 5 Piping Insulation 1 Please carry out insulation at pipe connection portion as mentioned Indoor Outdoor Unit Installation Diagram Please wrap the insulated piping end to prevent water from going inside the piping 2 If drain hose or connecting piping is the room where dew may form please increase the insulation by using POLY E FOAM with thickness 1 4 or above 29 12 Operation Control 12 1 Basic Function Inverter control which equipped with a microcomputer in determining the most suitable operation mode as time passes automatically adjusts output power for maximum comfort always In order to achieve the suitable operation mode the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that judging the condition according to internal settin
15. 0 65A and suction pressure YES e Replace Compressor due to compressor low 120psi compression NO Check for gas leaking source Repair or replace defected part s 49 15 4 4 H19 Indoor Fan Motor DC Motor Mechanism Locked Malfunction Decision Conditions rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor feedback of rotation gt 2550rpm or lt 50rpm Malfunction Caused Operation stops due to short circuit inside the fan motor winding Operation stops due to breaking of wire inside the fan motor Operation stops due to breaking of fan motor lead wires Operation stops due to Hall IC malfunction Operation error due to faulty indoor unit PCB Troubleshooting When abnormality indication starts again For safety reason and to prevent component always switch Caution off the power before remove and Turn off power supply and rotate fan by hand connect the component NO Does fan rotate smoothly Replace fan motor YES Turn power supply on and operate fan YES Does it rotate Stop fan motor Turn off power supply and disconnect fan motor connector Check the rotation feedback output from fan motor then turn power on Check the output of fan motor from indoor PCB Rotate the fan motor by hand is the rotation feedback voltage 15Vde pin 7 amp 4 generated Is the motor power supply voltage 325Vdc pin 1 amp 4 genera
16. F WBT Compressor Frequency Fh 115 000 113 000 111 000 109 000 107 000 105 000 103 000 101 000 99 000 Outlet Air Temperature F e 208 m 230 8 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft 9 000 8 500 8 000 7 500 Heating Capacity kW 7 000 6 500 102 000 101 000 100 000 99 000 98 000 97 000 96 000 Gas Side Piping Pressure PSI 95 000 94 000 12 800 12 300 11 800 11 300 10 800 Current A 10 300 9 800 9 300 8 800 Piping Length ft 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft in 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 8 Piping Length ft 78 9 94 99 104 18 Exploded View and Replacement Parts List Indoor Unit 18 1 iD N D iD z o vvvviv CWH55051J vv Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts 79
17. Front View gt VM NN 31 5 16 11 6 Refrigeration Cycle Diagram INDOOR INTAKE TEMP SENSOR HEAT EXCHANGER EVAPORATOR 54 22 OUTDOOR LIQUID SIDE RECEIVER EN STRAINER S gt 2 WAY VALVE PIPE PIPE TEMP TEMP SENSOR 1 SENSOR BE INTAKE TEMP SENSOR SENSOR 2 HEAT EXCHANGER CONDENSER GAS SIDE i 1 1 3 AR 2 3 WAY 4 WAY VALVE I VALVE Y DISCHARGE MUFFLER COMPRESSOR DISC SENSOR COMPRESSOR COOLING HEATING 12 7 Block Diagram gt gt Z REACTOR 4 WAYS VALVE o 1H AU PTC CE LY T RY PNR2 831114 3510 FUSE3 L 1 V 12 D 2 3 E SINGLE PHASE POWER SUPPLY I J LJ g I OUTDOOR UNIT INDOOR UNIT 8 Wiring Connection Diagram Indoor Unit 8 1 H3TIOHLNOO AV 1dSIQ 1 H3TIOH1NOO dSIQ NO HOLSIINH3HL HOSN3S dWIL NOLLONS HOLSIINH3HL L HOSN3S dN31 HOLSIINH3HL HOSN3S dN31 HOLON HAANOT 1331 HOLON NMOd
18. blinking but store in EEPROM Malfunction Decision Conditions e During heating operation the temperature detected by the indoor pipe temperature sensor is above 140 0 F Malfunction Caused Clogged air filter of the indoor unit Dust accumulation on the indoor unit heat exchanger Air short circuit Detection error due to faulty indoor pipe temperature sensor Detection error due to faulty indoor unit PCB Troubleshooting When abnormality indication starts again For safety reason and to prevent component always switch Caution off the power before remove and Check the air passage connect the component YES Is there any short circuit Provide sufficient air passage Check the indoor unit air filter Is the air filter dirty YES Clean the air filter z Check the dust accumulation on the indoor unit heat exchanger R 8 YES Is the indoor unit heat exchanger dirty e Clean the indoor unit heat exchanger NO Check the indoor pipe temperature sensor Does it conform to the sensor characteristic chart NO _ Replace the indoor pipe temperature sensor e Replace the indoor unit PCB 5 15 4 11 H99 Indoor Freeze Prevention Protection Cooling or Soft Dry Malfunction Decision Conditions Freeze prevention control takes place when indoor pipe temperature is lower than 35 6 F Malfunction Caused Clogged air filter of the indoor unit Dust accumulation on the indoor uni
19. fan motor is then stop and restart If the fan motor counter becomes 7 times then H19 fan motor error is detected Operation stops and cannot on back 12 3 Outdoor Fan Motor Operation Outdoor fan motor is operated with one fan speed only It starts when compressor starts operation and it stops 30 seconds after compressor stops operation ON ON Compressor OFF i ON i Fan Speed ON Outdoor Fan 14 30 sec gt OFF 1 12 4 Airflow Direction e There are two types of airflow vertical airflow directed by horizontal vane and horizontal airflow directed by vertical vanes e Control of airflow direction can be automatic angles of direction is determined by operation mode heat exchanger temperature and intake air temperature and manual angles of direction can be adjusted using remote control 12 4 1 Vertical Airflow Vane Angle Operation Mode Airflow Direction Auto with Heat Exchanger Het Temperature eating Manual 20 45 57 68 5 Auto 20 45 Cooling Van al Soft Auto Anti Dew Control Manual Anti Dew Control 45 e Automatic vertical airflow direction can be set using remote control the vane swings up and down within the angles as stated above For heating mode operation the angle of the vane depands on the indoor heat exchanger temperature as Figure 1 below When the air conditioner is stopped using remote control the vane will shift to clo
20. heard at the fifth seconds in order to identify the starting of Forced heating operation The Auto OFF ON button may be used together with remote control to set change the advance setting of air conditioner operation Auto OFF ON button pressed 5 sec Auto Operation Main unit always continue Test Run forced cooling operation 8 sec 11 sec 16 sec Remote Control Number Switch Mode Test Run Operation Test Run Operation Forced Cooling Operation Forced Heating Operation Remote Control Receiving Sound OFF ON Beep Beep x 2 t Beep x 3 t Beep x 4 Press RESET Press AC RESET then any key at remote control Press AC RESET at remote control 3 REMOTE CONTROL NUMBER SWITCH MODE The Remote Control Number Switch Mode will be activated if the Auto OFF ON button is pressed continuously for more than 11 seconds 3 beep sounds will occur at 11th seconds to identify the Remote Control Number Switch Mode is in standby condition and press AC RESET button and then press any button at remote control to transmit and store the desired transmission code to the EEPROM There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor unit The indoor unit will only operate when received signal with same transmission code from remote control This could prevent signal interference when there are 2 or more indoor units installed nearby together To change re
21. how to insert the connecting cable and drain hose Apply putty or caulking material to seal the wall opening Drain hose from main unit PVC tube VP 65 for piping PVC tube for and connecting cable drain hose VP 20 PVC tube for drain hose VP 30 More than 27 9 16 PVC tube Cable for drain Pipin hose Piping Pd For the right piping follow the same procedure Indoor unit 2 27 32 ppm 11 3 7 Connect the Cable to the Indoor Unit 1 The inside and outside connecting cable can Conduit be connected without removing the front grille Connector 2 Unscrew the conduit cover and fix the conduit connector to conduit cover with lock nut then Secure it against chassis 3 Connecting wire between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor wires minimum AWG16 in accordance with local electric codes o Ensure the colour of wires of outdoor unit and terminal number are the same as the indoor s repectively Earth Wire longer than others AC wires for safety reason This equipment must be properly earthed o Earth lead wire shall be Yellow Green Y G in colour and shall be longer than other lead wires as shown in the figure for electrical safety in case of the slipping connection 25 11 3 8 Wiring Stripping and connecting requirement Wire strippin Conductor Conductor Conductor not Indoor outdoor f
22. illuminates o Quiet operation stop condition When one of the following conditions is satisfied quiet operation stops Powerful button is pressed e Stop by OFF ON button e OFF Timer activates e Quiet button is pressed again When quiet operation is stopped operation is shifted to normal operation with previous setting When fan speed is changed quiet operation is shifted to quiet operation of the new fan speed When operation mode is changed quiet operation is shifted to quiet operation of the new mode 33 During quiet operation if ON timer activates quiet operation maintains After off when on back quiet operation is not memorised Control contents o Auto fan speed is change from normal setting to quiet setting of respective fan speed This is to reduce sound of Hi Me Lo for 3dB Manual fan speed for quiet operation is 1 step from setting fan speed o 12 6 Quiet Operation Heating e Purpose o provide quiet heating operation compare to normal operation e Control condition Quiet operation start condition o When Quiet button at remote control is pressed Quiet LED illuminates Quiet operation stop condition When one of the following conditions is satisfied quiet operation stops e Powerful button is pressed e Stop by OFF ON button Timer off activates e Quiet button is pressed again When quiet operation is stopped operation is shifted to normal operation wi
23. indoor heat exchanger protection protection Heating Air filter dirty Air circulation short circuit H99 Indoor operating unit Indoor freeze protection Check indoor heat exchanger freeze protection Cooling Air filter dirty Air circulation short circuit F11 4 way valve switching 4 times happen 4 way valve switching 4 way valve abnormality within 30 minutes abnormal Lead wire and connector F90 Power factor correction 4 times happen Power factor correction Outdoor PCB faulty PFC circuit protection within 10 minutes circuit abnormal F91 Refrigeration cycle 2 times happen Refrigeration cycle abnormal Insufficient refrigerant or valve abnormality within 20 minutes close F93 Compressor abnormal 4 times happen Compressor abnormal Power transistor module faulty or revolution within 20 minutes revolution compressor lock F95 Outdoor cooling high 4 times happen Cooling high pressure Check refrigeration system pressure protection within 20 minutes protection Outdoor air circuit F96 Power transistor module 4 times happen Power transistor module PCB faulty overheating protection within 30 minutes overheat Outdoor air circuit fan motor F97 45 Compressor 3 times happen Compressor overheat Insufficient refrigerant overheating protection within 30 minutes Diagnosis Abnormality Abnormality Protection Probl m display Protection control Judgement operation F98 Total running curre
24. mode is decided Maintain Cool current mode Dry 4 72 9 0 108 E 25 H 10 8 9 0 7 2 4 36 18 0 1 8 3 6 5 12 2 Indoor Fan Motor Operation 12 2 1 Basic Rotation Speed rpm Manual Fan Speed Cooling Dry Fan number of rotation is determined according to remote control setting Remote control o o o o o Tab Hi Me Me Me Lo Heating o Fan motors number of rotation is determined according to remote control setting Remote control o o o o o Tab Shi Me Me Me Lo Auto Fan Speed Cooling Dry o According to room temperature and setting temperature indoor fan speed is determined automatically o indoor fan will operate according to pattern below Fan 1 pattern 10 s Speed g h a b Higher t Medium H Lower o During operation indoor fan motor may stop due to odor prevention 31 Heating o According to indoor pipe temperature automatic heating fan speed is determined as follows RPM Increased RPM Maintain RPM Reduced 66 2 F DETR 60 8 F OFF 102 2 F 95 F Indoor Pipe Temp V Feedback control o Immediately after the fan motor started feedback control is performed once every second o During fan motor on if fan motor feedback gt 2550 rpm or lt 50 rpm continue for 10 seconds then fan motor error counter increase
25. screws 6 Remote control 3 gr Remote control holder 5 7 It is advisable to Installation plate 1 Bushing Sleeve X Sleeve Putty X Gum Type Sealer Bend the pipe as closely on the wall as possible but be careful that it doesn t break Vinyl tape wide Apply after carrying out a drainage test To carry out the drainage test remove the air filters and pour water into the heat exchanger Saddle Conduit Power supply cord Conduit avoid more than 2 blockage directions For better ventilation amp multiple outdoor installation please consult authorized dealer specialist This illustration is for explanation purposes only The indoor unit will actually face a different way Connecting cable Liquid side piping X Gas side piping Additional drain hose Control Board cover 11 3 Indoor Unit 11 3 1 How to Fix Installation Plate The mounting wall must be strong and solid enough to prevent it from the vibration Wall Wall fo More than pror More than Wall o JN 2 screw More PES Indoor unit Installation plate 1 Measuring Tape iie The center of installation plate should be at more t
26. temperature rise due to defective outdoor pipe temperature sensor Outdoor pipe temperature rise due to defective outdoor unit PCB Troubleshooting When F95 indication happens For safety reason and to prevent component breakdown always switch off the power Caution before remove and connect the component Check the outdoor unit installation condition during cooling or soft dry operation Reinstall the outdoor unit i iation YES Is there any improper heat radiation Remove the obstacle s Clean the outdoor heat exchanger NO Is outdoor fan motor operating NO Replace the outdoor fan motor YES Check the outdoor pipe temperature sensor Does it conform to the sensor NO characteristic charts Replace compressor YES Replace outdoor unit PCB 62 15 4 17 _ F96 IPM Overheating Malfunction Decision Conditions During operating of cooling and heating when IPM temperature data 212 0 F is detected by the IPM temperature sensor Malfunction Caused IPM overheats due to short circuit of hot discharge air flow IPM overheats due to defective of outdoor fan motor IPM overheats due to defective of internal circuitry of IPM IPM overheats due to defective IPM temperature sensor Troubleshooting breakdown always switch off the power When F96 indication happens For safety reason and to prevent component Caution before remove and connect the component Check the outdoor unit installation condition
27. unit PCB Sensor Thermistor Characteristics Pipe temp Sensor Resistance EEE ESH genase EE ES EB ERE ES ER E s 14 32 50 68 86 104 122 Temperature F 51 15 4 6 H27 Outdoor Air Temperature Sensor Abnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection e Faulty sensor e Faulty PCB Troubleshooting When abnormality indication starts again Check the connector connection For safety reason and to prevent component Turn off the power breakdown always switch off the power Check the connector connection Caution before remove and connect the component NO Is the connector connection normal Connector poor contact Correct the connection YES Check the outdoor air temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor air temperature sensor Is the measured resistance of the outdoor air temperature sensor matches the value specified in its characteristic Defect in outdoor air temperature Sensor chart Replace the outdoor air temperature sensor YES e Defect in outdoor unit PCB e Replace the outdoor unit PCB Sensor Thermistor Character
28. 0 Cooling Heating Cooling 700 Heating 750 11 97 420 13 60 480 Cooling Heating m min ft min Cooling 13 15 460 Heating 14 32 500 13 37 470 15 25 540 Cooling Heating Indoor Airflow m min ft min Cooling Heating 17 45 620 Cooling 18 40 650 Heating 19 20 680 18 40 650 19 80 700 Cooling Heating 410 450 460 500 Cooling 15 71 550 Heating 16 76 590 650 680 670 Cooling 18 97 670 Heating 20 64 730 20 07 710 19 80 700 Cooling 15 88 560 Heating Outdoor Airflow Control Device m min ft min Cooling 54 5 1925 Cooling 54 5 1925 Heating 54 5 1925 Heating 54 5 1925 Expansion Valve Cooling 54 5 1925 Cooling 54 5 1925 Heating 56 5 1995 Heating 56 5 1995 Expansion Valve Refrigerant Oil FV50S 800 FV50S 800 Cycle Refrigerant Type Height I D O D mm inch R410A 1 60k 56 5 290 11 7 16 795 31 5 16 R410A 1 85k 65 3 290 11 7 16 795 31 5 16 Dimension Width I D O D mm inch 1070 42 5 32 875 34 15 32 1070 42 5 32 875 34 15 32 Depth I D O D mm inch 235 9 9 32 320 12 5 8 235 9 9 32 320 12 5 8 Weight Net I D O D kg lb Piping Inner Diameter Pipe D
29. 02246 41 V COIL COMPLETE 1 CWA43C2392 42 HEATER 1 CWA341067 lt 43 FLEXIBLE PIPE L TUBE 1 CWH5850080 lt 43a PACKING L TUBE 1 CWB81012 44 CAPILLARY TUBE ASS Y 1 01 6093 45 CONTROL BOARD COVER TOP 1 CWH131333 lt 46 COVER TERMINAL 1 CWH131332 lt 47 1 CWG861154 48 BASE BOARD COMPLETE 1 CWG62C1082 49 SHOCK ABSORBER R 1 CWG712879 50 SHOCK ABSORBER L 1 CWG712880 lt 51 1 CWG565614 lt Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock 82 Printed in Malaysia FY0412 0
30. 1 6 F Limited frequency 37 13 2 2 Cooling Overload Control e Pipe temperature limitation restriction o Detects the outdoor pipe temperature and carry out restriction limitation below Limit the compressor operation frequency o The compressor stops if outdoor pipe temperature exceeds 145 4 F o the compressor stops 4 times in 20 minutes Timer LED blinks F95 indicated Outdoor high pressure rise protection 13 2 3 Freeze Prevention Control 1 e When indoor heat exchanger temperature is lower than 32 F continuously for 6 minutes compressor will stops operation e Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 41 0 F Atthe same time indoor fan speed will be higher than during its normal operation e indoor heat exchanger temperature is higher than 55 4 F for 5 minutes the fan speed will return to its normal operation 13 2 4 Freeze Prevention Control 2 e Control start conditions o During Cooling operation and soft dry operation During thermo OFF condition indoor intake temperature is less than 50 0 F or Compressor stops for freeze prevention control o Either one of the conditions above occurs 5 times in 60 minutes e Control contents o Operation stops o Timer LED blinks and H99 indicated 13 2 5 Dew Prevention Control 1 To prevent dew formation at indoor unit discharge area e This control will be activated if o Outdoor air tempera
31. 28A 2 ANTI VIBRATION BUSHING 3 CWH50055 3 COMPRESSOR 1 5KD240XAF21 4 NUT COMPRESSOR MOUNT 3 CWH561049 lt 5 FAN MOTOR BRACKET 1 CWD541127 lt 6 FAN MOTOR 1 EHDS80CAC 7 SCREW MOTOR 3 CWH551217 8 SCREW MOTOR MOUNT 4 CWH551323 lt 9 PROPELLER FAN ASSY 1 CWH00K1006 amp 10 NUT PROPELLER FAN 1 CWH561092 lt 11 CONDENSER 1 CWB32C3516 lt 12 EXPANSION VALVE 1 CWB051018J 14 4 5 VALVE 1 CWB001057 16 HOLDER COUPLING 1 CWH351228A lt 17 3 VALVE GAS 1 CWB011672 CWB011363 18 2 WAYS VALVE LIQUID 1 CWB021464 19 SOUND PROOF BOARD 1 CWH151197 20 TERMINAL COVER 1 CWH171039A lt 21 NUT TERMINAL COVER 1 CWH7080300J 22 V COIL COMPLETE 1 CWA43C2393 23 SENSOR COMPLETE 1 CWA50C2689 24 SENSOR COMPLETE 1 CWA50C2710 25 REACTOR 1 G0C452J00002 lt 27 TERMINAL BOARD ASSY 1 CWA28K1076J 27a TERMINAL BOARD ASS Y 1 CWA28K1277 28 ELECTRONIC CONTROLLER MAIN 1 CWA73C6800R CWA73C6801R 28a ELECTRONIC CONTROLLER 1 CWA747077 lt 29 CONTROL BOARD COVER 1 CWH13C1210 lt 30 CABINET SIDE PLATE LEFT 1 CWE041490A 31 HANDLE 1 CWE161010 lt 32 CABINET SIDE PLATE R 1 CWE041488A lt 33 CABINET FRONT PLATE CO 1 CWEO6K1070 amp 34 WIRE NET 1 CWD041128A lt 35 CABINET PLATE 1 CWE031131A lt 37 PACKING 3 CWB81043 lt 38 SOUND PROOF MATERIAL 1 CWG302510 39 SOUND PROOF MATERIAL 1 CWG302245 40 SOUND PROOF MATERIAL 1 CWG3
32. 32 When the wall is hollow please be sure to use the sleeve for tube assembly to prevent dangers caused by mice biting the connecting cable Bushing for tube assembly 2 3 4 through hole 4 Finish by sealing the sleeve with putty or Putty or caulking compound caulking compound final stage ADU 23 11 3 3 Indoor Unit Installation N CAUTION Do not turn over the unit without it s shock absorber during pull out the piping It may cause intake grille damage w Intake grille 11 3 4 For the right rear piping 1018 Pull out the Indoor piping SC Install the Indoor Unit Secure the Indoor Unit Ie Insert the connecting cable 11 3 5 the right bottom piping 118 Pull out the Indoor piping SC Install the Indoor Unit Insert the connecting cable Secure the Indoor Unit 11 3 6 For the embedded piping Sei Replace the drain hose elle Bend the embedded piping Use spring bender or equivalent to bend the piping so that the piping is not crushed 5219668 Pull the connecting cable into Indoor Unit The inside and outside connecting cable can be connected without removing the front grille Cut and flare the embedded piping B When determining the dimen
33. 3H LINN HOOQNI OL ATddNS 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board T E nU RAR SK m 10 1 2 Power Printed Circuit Board G301 AC303 AC304 ery 5 a 06 ou TNI w Lue CN FM 10 1 3 Indicator and Receiver Printed Circuit Board 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board AC BLK AC WHT 20 10 2 2 Noise Filter Printed Circuit Board 21 11 11 1 Select the Best Location Installation Instruction 11 1 1 Indoor Unit Do not install the unit in excessive oil fume area such as kitchens workshops and etc There should not be any heat source or steam near the unit There should not be any obstacles blocking the air circulation place where air circulation in the room is good place where drainage be easily done place where noise prevention is taken into consideration Do not install the unit near the door Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles e Recommended installation height for indoor unit shall be at least 8 2 ft 11 1 2 Outdoor Unit awning is built over the unit to prevent direct sunlight or rain be careful that heat radiation from the condenser is not obstructed e There should n
34. 5 000 104 800 104 600 Gas Side Piping Pressure PSI 104 400 104 200 104 000 Piping Length ft 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 o eT 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft 8 900 8 400 7 900 7 400 Current A 6 900 EEE 6 400 5 900 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft 17 1 2 CS E24NK CU Cooling Characteristic o Room temperature o Operation condition o Piping length o E24NK 81 F DBT 66 F WBT High fan speed 24 6ft Compressor Frequency Fc 56 000 55 000 54 000 53 000 Outlet Air Temperature F 52 000 51 000 50 000 7 800 e 208 m 230 Be 60 65 70 75 80 85 90 95 100 105 110 115 Outdoor Air Temperature F 7 300 SA 6 800 me 6 300 Cooling Capacity kW 5 800 5 300 60 65 70 75 80 85 90 95 12 600 12 100 11 600 11 100 10 600 Current A 10 100 9 600 9 100 8 600 136 000 134 000 132 000 130 000 128 000 126 000 124 000 122 000 120 000 118 000 116 000 114 000 112 000 110 000 Gas Side Piping Pressure PSI 110 115 Outdoor Air Temper
35. 84 19 30 11 46 19 30 Heating 11 29 19 30 13 63 19 30 1 The first 30 minutes of cooling operation A will be applied 102 2 F 100 4 F Outdoor air temperature 13 1 4 IPM Power Transistor Prevention Control e Overheating Prevention Control o When the IPM temperature rises to 212 F compressor operation will stop immediately o Compressor operation restarts after 3 minutes the temperature decreases to 203 F e DC Peak Current Control o When electric current to IPM exceeds set value of 29 9A the compressor will stop operate Then operation will restart after 3 minutes o If the set value is exceeded again more than 30 seconds after the compressor starts the operation will restart after 2 minute o If the set value is exceeded again within 30 seconds after the compressor starts the operation will restart after 1 minute If this condition repeats continuously for 7 times all indoor and outdoor relays will be cut off Timer LED will be blinking F99 is indicated 36 13 1 5 Compressor Overheating Prevention Control Instructed frequency for compressor operation will be regulated by compressor discharge temperature The changes of frequency are as below If compressor discharge temperature exceeds 233 6 F compressor will be stopped occurs 4 times per 20 minutes timer LED will be blinking 97 is indicated 233 Compressor OFF 206 6 F Compressor Frequency 230 0 F Reduc
36. 9 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft 76 Heating Characteristic o Room temperature 68 F DBT o Operation condition High fan speed o Piping length 24 6ft o Compressor Frequency Fh 138 000 e 208 m 230 133 000 128 000 123 000 118 000 113 000 Outlet Air 108 000 Temperature F 103 000 98 000 93 000 14 19 24 29 10 400 34 39 4 49 54 59 79 Outdoor Air Temperature F 9 400 8 400 7 400 Heating Capacity kW 6 400 5 400 4 400 14 19 24 29 15 000 34 39 44 49 54 79 Outdoor Air Temperature F 14 500 14 000 13 500 13 000 12 500 A 12 000 Current 11 500 11 000 10 500 10 000 9 500 166 000 39 44 49 79 Outdoor Air Temperature F 156 000 146 000 136 000 126 000 116 000 106 000 96 000 Gas Side Piping Pressure PSI 86 000 76 000 66 000 56 000 T T 14 19 24 29 34 39 44 49 54 59 Outdoor Air Temperature F 77 Piping Length Characteristic Heating o o o o Room temperature Operation condition Outdoor temperature 68 F DBT High fan speed 47 F DBT 43
37. Conditions e The supply power is detected for its requirement by the indoor outdoor transmission Malfunction Caused e Wrong models interconnected Wrong indoor unit and outdoor unit PCBs used e Indoor unit or outdoor unit PCB defective Troubleshooting When abnormality indication starts For safety reason and to prevent again component breakdown always switch Caution off the power before remove connect the component NO H33 occurs intermittently during NO E H33 occurs right after installation operation unit has operated H33 occurs right after normally before and has never occur before Match the compatible model 4 follow specification Has the PCB indoor or outdoor being replaced YES Has the AC power input dropped more than 50 of rating in most Has the indoor and outdoor model matched in voltage rating Has the AC power input dropped cases customers do not aware of Confirm the replaced PCB part more than 50 of rating the voltage drop but the installed number versus listed in Service area has known power supply Manual issue NO Change outdoor main Check DC Voltage after e Replace with correct PCB indoor main and PCB rectification at outdoor or indoor PCB DC Voltage drops below 180Vdc 55 e Change outdoor PCB e Match the compatible model follow specification 15 4 10 H98 Indoor High Pressure Protection Error Code will not display no Timer LED
38. Order No PAPAMY1204088CE Service Manual Air Conditioner Indoor Unit Outdoor Unit CS E18NKUA CU E18NKUA CS E24NKUA CU E24NKUA CN WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the products dealt with in this service information by anyone else could result in serious injury or death AN PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit TABLE OF CONTENTS 8 1 Indoor Unit 14 1 Safety Precautions 3 15 2 ree mene 5 9 Electronic Circuit 16 3 Features ecce 8 9 1 mom fm en t mana 16 4 Location of Controls and Components 9 9 2 Outdoor 17 4 1 Indoor rit ntes 9 10 Printed Circuit Board 18 4 2 Outdoor Unit
39. Outdoor Heat Exchanger Resistance 14 32 50 68 86 104 122 Temperature F 53 15 4 8 H30 Compressor Discharge Temperature Sensor Abnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection e Faulty sensor Faulty PCB Troubleshooting When abnormality indication starts again Check the connector connection For safety reason and to prevent e Turn off the power component breakdown always switch Check connector connection Caution off the power before remove and connect the component Is the connector connection normal NO Connector poor contact e Correct the connection YES Check the outdoor discharge pipe temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor discharge pipe temperature sensor 3 7 e Defect in outdoor discharge pipe Is the measured resistance of the outdoor discharge pipe NO temperature sensor temperature sensor matches the value specified in its d Replace the outdoor discharge pipe characteristic chart temperature sensor YES e Defect in outdoor unit PCB Replace the outdoor unit PCB 54 15 4 9 H33 Unspecified Voltage between Indoor and Outdoor Malfunction Decision
40. Protection Control For All Operations 36 13 2 Protection Control For Cooling amp Soft Dry 37 14 Servicing Mode 40 14 1 Auto Off On Button 40 14 2 Remote Control Button 41 15 Troubleshooting Guide 42 15 1 Refrigeration Cycle System 42 15 2 Breakdown Self Diagnosis Function 44 15 3 Error Code 45 15 4 Self diagnosis Method 47 16 Disassembly and Assembly Instructions 67 16 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal 67 17 Technical 71 17 1 Operation Characteristics 71 18 Exploded View and Replacement Parts Bra 79 18 1 Indoor Unit 79 18 2 Outdoor 81 1 Safety Precautions Read the following SAFETY PRECAUTIONS carefully before perform any servicing Electrical work must be installed or serviced by a licensed electrician Be sure to use the correct rating of the power plug and main circuit for the model installed The caution items stated here must be fo
41. ature F 60 65 70 75 80 85 90 95 Outdoor Air Temperature F 60 65 70 75 80 85 90 95 100 105 110 115 Outdoor Air Temperature F 75 Piping Length Characteristic Cooling Room temperature Operation condition Outdoor temperature Compressor Frequency Fc o o o o Outlet Air Temperature F Cooling Capacity kW Gas Side Piping Current 55 400 55 200 81 F DBT 66 F WBT High fan speed 95 F DBT e 208 m 230 P Pressure PSI 55 000 54 800 54 600 54 400 54 200 54 000 53 800 53 600 7 200 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft 7 150 7 100 7 050 7 000 6 950 SST 6 900 120 000 115 000 110 000 105 000 100 000 95 000 90 000 85 000 80 000 75 000 12 300 12 100 11 900 11 700 11 500 11 300 11 100 10 900 10 700 Piping Length ft 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 M N PT 9 14 19 24 29 34 39 44 49 54 59 64 69 74 79 84 89 94 99 104 Piping Length ft NM 9 14 1
42. bite 11 4 44 Connect the Cable to the Outdoor Unit Remove control board cover Resin and Metal Remove particular plate Remove plugs Fix the conduit connectors to the knockout holes with lock nuts then secure them against the side panel All wires pass through conduits amp particular plate s opening hole Connecting wire between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor wires minimum AWG16 in accordance with local electric codes Wire connection to the power supply 208 230V 60Hz through circuit breaker o Connect the UL listed or CSA approved wires minimum AWG12 to the terminal board and connect the other end of the wires to ELCB 8 Connect the power supply cord and connecting wire between indoor unit and outdoor unit according to the diagram below 28 Terminal on the indoor unit Colour of wires connecting wire Terminal on the outdoor unit Power supply cord POWER SUPPLY 9 Secure the wire onto the control board with the holder clamper 10 After completing wiring connections reattach the particular plate control board cover metal and resin and the original position with the screws 11 For wire stripping and connection requirement refer to instruction 11 3 7 of indoor unit This equipment must be properly earthed Earth lead wire shall be Yellow Green Y G in colour and longer than other lead wires as shown in the figure for
43. bjects into the unit high speed rotating fan may cause injury Q 24 Must not use other parts except original parts describe in catalog and manual 25 Using of refrigerant other than the specified tyve may cause product damage burst and injury etc AN CAUTION Do not install the unit at place where leakage of flammable gas may occur In case gas leaks and accumulates at surrounding of the unit it may cause fire Q 2 Carry out drainage piping as mentioned in installation instructions lf drainage is not perfect water may enter the room and damage the furniture 3 Tighten the flare nut with torque wrench according to specified method If the flare nut is over tightened after a long period the flare may break and cause refrigerant gas leakage 4 Do not touch outdoor unit air inlet and aluminium fin It may cause injury SQ 5 Select an installation location which is easy for maintenance 6 Pb free solder has a higher melting point than standard solder typically the melting point is 50 F 70 F 30 C 40 C higher Please use a high temperature solder iron In case of the soldering iron with temperature control please set it to 700 20 F 370 10 Pb free solder will tend to splash when heated too high about 1100 F 600 C 7 Power supply connection to the room air conditioner Power supply cord shall be UL listed or CSA approved 3 conductor with minimum AWG12 wi
44. connector connection Check the indoor intake air temperature sensor Plug out connector from the indoor unit PCB Measure the resistance of the indoor intake air temperature sensor Is the measured resistance of the indoor intake air NO Defect in indoor intake air temperature sensor temperature sensor matches the value specified in its characteristic chart Replace the indoor intake air temperature sensor YES Defect in indoor unit PCB Replace the indoor unit PCB Sensor Thermistor Characteristics Resistance gt 14 32 50 68 86 104 122 Temperature F 48 15 4 3 H16 Outdoor Current Transformer Open Circuit Malfunction Decision Conditions current transformer is detected by checking the compressor running frequency gt rated frequency and CT detected input current less than 0 65A for continuously 20 seconds Malfunction Caused CT defective e Outdoor PCB defective Compressor defective low compression Troubleshooting When abnormality indication starts again R For safety reason to prevent Check the functionality of current transformer CT component breakdown always switch Caution off the power before remove and connect the component Is the CT open circuit YES e Replace the outdoor PCB NO Force heating operation and measure Running current Suction pressure Is the running current less than
45. d 3 m QUIET Orange Vertical Airflow POWERFUL Orange Direction Louver Do not adjust by hand 4 2 Outdoor Unit Aur inlet rear Air inlet side Air outlet 4 3 AIR CONDITIONER Remote control displ emote control display 200 OFF ON jose FAN SPEED MODE Operation mode A Fan speed selection P Tw Temperature setting lt y Le Air flow QUIET POWERFUL VR SWING direction selection Quiet operation ez Powerful operation 2 1 3 Timer setting 5 Dimensions 5 1 Indoor Unit lt Top View gt 6 29 64 lt Side View gt Air intake direction Left piping hole 11 7 16 lt Side View gt 9 9 32 Air outlet direction 16 1 8 1 5 8 2 3 8 Relative position between the indoor unit and the installation plate lt Front View gt 29 11 64 Installation plate Indoor unit external dimensions line 10 Right piping hole Remote control transmitter 1 7 8 1 8 Remote control holder 2 3 8 10 5 12 Unit inch 5 2 Outdoor Unit Space necessary for lt Top View gt installation 34 15 32 _2 3 4 1 5 64 5 5 32 _ 24 18 5 32 1 1 2 BB cab 3 7 32 5 31 32 14 3 16 Anchor Bolt Pitch 15 5 64 x 24 7 64 lt Side View gt 2 5 16 12 5 8 lt Side View gt lt
46. during cooling or soft dry operation A Reinstall the outdoor unit YES Is there any improper heat radiation Remove the obstacle s Clean the outdoor heat exchanger NO Is outdoor fan motor operating NO Replace the outdoor fan motor YES Defect in IPM Replace the outdoor unit PCB 63 15 4 18 F97 Compressor Overheating Malfunction Decision Conditions During operation of cooling and heating when compressor tank temperature data 233 6 F is detected by the compressor tank temperature sensor Malfunction Caused e Refrigerant shortage refrigerant leakage e 2 3 way valve closed e Detection error due to faulty compressor tank temperature sensor Troubleshooting When F97 indication happens Check the compressor tank temperature sensor Does it conform to the sensor characteristic chart YES 2 3 way valve closed NO Check for gas leakage Is Oil oozing out from the 2 3 way valve NO Capillary tube or dryer clogged NO Charge a specified amount of fresh refrigerant Refrigerant cycle abnormality error happens again NO NO YES YES YES YES 64 For safety reason and to prevent component breakdown always switch off the power Caution before remove and connect the component Replace the compressor tank temperature sensor e Open 2 3 way valve Repair the pipe flare or union nuts Reclaim and recharge refrigerant Replace the ca
47. ed 204 8 F Compressor Frequency 212 0 F Maintain 194 0 F Free Comp Discharge temperature 13 1 6 Low Pressure Protection Control Gas Leakage Detection For 5 minutes the compressor continuously operates and outdoor total current is between 0 78 and 1 16A During Cooling and Soft Dry operation Indoor suction temperature indoor piping temperature is below 39 2 F During Heating operations Indoor piping temperature indoor suction is under 41 0 F 13 1 7 Low Frequency Protection Control 1 When the compressor operates at frequency lower than 25Hz continued for 240 minutes the operation frequency will be changed to 24Hz for 2 minutes 13 1 8 Low Frequency Protection Control 2 When all below conditions comply minimum limit of compressor will be set E18NKUA E24NKUA Temperature T for Cooling Soft Dry Heating Indoor intake air F T lt 57 2 or T gt 86 0 lt 57 2 or T 2 82 4 Outdoor air F T lt 55 4 or T gt 100 4 T lt 39 2 or T gt 75 2 Indoor heat exchanger F T lt 86 0 T 2 32 0 13 2 Protection Control For Cooling amp Soft Dry Operation 13 2 1 Outdoor Air Temperature Control The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below This control will begin 1 minute after the compressor starts Compressor frequency will adjust based on outdoor air temperature 7
48. eed High Outdoor temperature 95 F at cooling mode and 44 6 F at heating mode Compressor operate at rated frequency Difference in the intake and outlet air temperatures Value of electric current during operation Gas side pressure More than 14 4 F 15 minutes after an operation is started at cooling mode Above 25 2 F 15 minutes after an operation is started at heating mode Less than 14 4 F at the cooling mode Less than 25 2 F at the heating mode Higher than specified Lower than specified Cooling Mode High Heating Mode Normal Measuring the air temperature difference Dusty condenser preventing heat radiation Excessive amount of refrigerant e Measuring electric current during operation 15 1 1 electric current Relationship between the condition of the air conditioner and pressure and Condition of the air conditioner Insufficient refrigerant Cooling Mode Heating Mode Low Pressure High Pressure Electric current during operating Low Pressure High Pressure Electric current during operating gas leakage Clogged capillary tube Strainer Short circuit in the indoor unit Heat radiation deficiency gt of the outdoor unit Inefficient compression Carry out the measurements of pressure electric current and temperature fif
49. etween P and N terminal at the outdoor unit PCB YES Is the DC voltage between P and N terminal normal 28Vdc Defect in PFC circuitry between 285 315Vdc Replace the outdoor unit PCB Check the compressor winding resistance Turn off the power supply and disconnect the harness U V and W Measure the winding resistance between U V V W and W U NO Are the compressor s winding resistance U V V W W U Replace the compressor YES Replace the outdoor unit PCB 15 4 14 F91 Refrigeration Cycle Abnormality Malfunction Decision Conditions e During cooling compressor frequency Fcmax e During cooling and heating operation running current 0 65A lt lt 1 65A e During cooling indoor intake indoor pipe lt 39 2 F Malfunction Caused e Refrigerant shortage refrigerant leakage Poor compression performance of compressor e 2 3 way valve closed e Detection error due to faulty indoor intake air or indoor pipe temperature sensors Troubleshooting When F91 indication happens For safety reason and to prevent component breakdown always switch off the power Caution before remove and connect the component Check the indoor air intake and pipe temperature sensors Does it conform to the sensor characteristic chart Replace the indoor intake air or pipe temperature sensor 2 3 way valve opened NO Open 2 3 way valve YES Check for gas leaking
50. g temperature and intake air temperature 12 1 4 Internal Setting Temperature Once the operation starts remote control setting temperature will be taken as base value for temperature shifting processes These shifting processes are depending on the air conditioner settings and the operation environment The final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit Remote Control Setting Temperature 60 8 F 86 F Auto Operation Mode Shifting Y Indoor Air Temperature Shifting Outdoor Air Temperature Shifting Powerful Mode Shifting Setting Temperature Limit Checking Min 60 8 F Max 86 F Y Internal Setting Temperature 12 1 2 Cooling Operation 12 1 2 1 Thermostat control e Compressor is OFF when intake Air Temperature Internal Setting Temperature lt 2 7F e Compressor is ON after waiting for 3 minutes if the Intake Temperature Internal Setting Temperature gt Compressor OFF point 12 1 3 Soft Dry Operation 12 1 3 1 Thermostat control e Compressor is OFF when Intake Temperature Internal Setting Temperature lt 3 6 F e Compressor is ON after waiting for 3 minutes if the Intake Air Temperature Internal Setting Temperature gt Compressor OFF point 12 1 4 Heating Operation 12 1 4 1 Thermostat control e Compressor is OFF when Intake Te
51. han O at right and left of the wall The distance from installation plate edge to ceiling should more than From installation plate left edge to unit s left side is From installation plate right edge to unit s right side is For left side piping piping connection for liquid should be about from this line For left side piping piping connection for gas should be about from this line 1 Mount the installation plate on the wall with 5 screws or more at least 5 screws If mounting the unit on the concrete wall consider using anchor bolts o Always mount the installation plate horizontally by aligning the marking off line with the thread and using a level gauge 2 the piping plate hole with 2 3 4 hole core drill o Line according to the left and right side of the installation plate The meeting point of the extended line is the center of the hole Another method is by putting measuring tape at position as shown in the diagram above The hole center is obtained by measuring the distance namely 5 1 16 for left and right hole respectively o Drillthe piping hole at either the right or the left and the hole should be slightly slanting to the outdoor side 11 3 2 To Drill a Hole in the Wall and Install a Sleeve of Piping 1 Insert the piping sleeve to the hole 2 Fix the bushing to the sleeve 3 sleeve until it extrudes about 19 32 Sleeve for from the wall tube assembly gt Approx 7 32 9
52. iameter Liquid Gas mm inch 6 35 1 4 12 70 1 2 6 35 1 4 15 88 5 8 Standard length m ft 7 5 24 6 7 5 24 6 Length range min max m 3 9 8 30 5 100 0 3 9 8 30 5 100 0 I D amp O D Height different m ft 15 49 2 15 49 2 Additional Gas Amount g m oz ft 25 0 3 25 0 3 Length for Additional Gas m ft 10 32 8 10 32 8 Drain Hose Length Fin Material Aluminium Pre Coat Aluminium Pre Coat Indoor Heat Fin Type Slit Fin Slit Fin Exchanger Row x Stage x FPI 2 15 21 2 15 21 Size W x H x L 25 4 x 315 x 810 25 4 x 315 x 810 Fin Material Aluminium Blue coated Aluminium Blue coated Outdoor Fin Type Corrugate Fin Corrugate Fin Heat Exchanger Row x Stage x FPI 2 x 36 x 19 2 x 36 x 19 Size W x H x L Material 36 4 x 756 x 869 897 36 4 x 756 x 869 897 Air Filter Type Power Supply Polypropelene Polypropelene One touch One touch Power Supply Cord Thermostat Protection Device DRY BULB WET BULB DRY BULB WET BULB Indoor Operation Range Maximum 89 6 73 4 89 6 73 4 Cooling Minimum 60 8 51 8 60 8 51 8 Outdoor Operation Range Maximum 109 4 78 8 109 4 78 8 Cooling Minimum 0 0 0 0 Maximum 86 0 86 0 Indoor Operation Range Heating Minimum Outdoor Operation Range Maximum Heating Minimum 1 Cooling capacities are based on indoor te
53. ing procedures Indoor unit Liquid side gt Two way valve Outdoor unit Vacuum pump 1 Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3 way valve 2 Connect the micron gauge between vacuum pump and service port of outdoor units 3 Turn on the power switch of the vacuum pump and make sure that connect digital micron gauge and to pull down to a value of 500 microns 4 To make sure micron gauge a value 500 microns and close the low side valve of the charging set and turn off the vacuum pump 5 Disconnect the vacuum pump house from the service port of the 3 way valve 6 Tighten the service port caps of the 3 way valve at a torque of 13 3 Ibf ft with a torque wrench 7 Remove the valve caps of both of the 2 way valve and 3 way valve Position both of the valves to Open using a hexagonal wrench 5 32 8 Mount valve caps onto the 2 way valve and the 3 way valve o Be sure to check for gas leakage N CAUTION If micron gauge value does not descend 500 microns take the following measures If the leak stops when the piping connections are tightened further continue working from step 3 If the leak does not stop when the connections are retightened repair location of leak Do not release refrigerant during piping work for installation and reinstallation Be careful with the liquid refrigerant it may cause frost
54. is defective it will cause water leakage electric shock or fire 6 Use the attached accessories parts and specified parts for installation and servicing Otherwise it will cause the set to fall water leakage fire or electrical shock 7 nstall at a strong and firm location which is able to withstand the set s weight If the strength is not enough or installation is not properly done the set will drop and cause injury 8 For electrical work follow the local national wiring standard regulation and the installation instruction An independent circuit and single outlet must be used If electrical circuit capacity is not enough or defect found in electrical work it will cause electrical shock or fire 9 This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker ELCB or Residual Current Device RCD Otherwise it may cause electrical shock and fire in case equipment breakdown or insulation breakdown 10 Do not use joint cable for indoor outdoor connection cable Use the specified indoor outdoor connection cable refer to installation instruction CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor outdoor connection Clamp the cable so that no external force will be acted on the terminal If connecting or fixing is not perfect it will cause heat up or fire at the connection 11 Wire routing must be properly arranged so that control board cover is fixed properly If control board cover is not fixed pe
55. istics D Outdoor Air Sensor Outdoor Heat Exchanger Sensor Resistance 14 32 50 68 86 104 122 J Temperature F 52 15 4 7 H28 Outdoor Pipe Temperature Sensor Abnormality Malfunction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection e Faulty sensor e Faulty PCB Troubleshooting When abnormality indication starts again For safety reason and to prevent Check the connector connection 4 component breakdown always switch e Turn off the power Caution off the power before remove and Check the connector connection connect the component No Is the connector connection normal Connector poor contact e Correct the connection YES Check the outdoor heat exchanger temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor heat exchanger temperature sensor Defect in outdoor heat exchanger Is the measured resistance of the outdoor heat exchanger temperature sensor temperature sensor matches the value specified in its Replace the outdoor heat exchanger isti characteristic chart temperature sensor YES e Defectin outdoor unit PCB Replace the outdoor unit PCB Sensor Thermistor Characteristics D Outdoor Air Sensor
56. l dB 63 63 65 65 6 00 6 00 8 46 8 46 Indoor Noise H L QLo Outdoor Noise H L QLo Capacity Running Current Input Power COP Btu hW Power Factor dB A 46 39 36 46 39 36 48 40 37 48 40 37 Power Level dB 62 62 64 64 dB A 51 51 53 53 Power Level dB 65 671 1 67 11 6 2 49k 13 7 3 06k Type Hermetic Motor Rotary Hermetic Motor Rotary Indoor Noise H L QLo Outdoor Noise H L QLo Compressor Motor Type Brushless 4 poles Brushless 4 poles Output Power 1 7k 1 7k Type Cross flow fan Cross flow fan Material ASG30K1 ASG30K1 Motor Type Transistor 8 poles Transistor 8 poles Input Power 94 8 94 8 94 8 94 8 Output Power 40 40 QLo Cooling 990 Cooling 1020 Heating 1060 Heating 1150 Lo Cooling 1090 Cooling 1120 Heating 1160 Heating 1270 Me Cooling 1270 Cooling 1300 Heating 1330 Heating 1430 Hi Cooling 1460 Cooling 1480 Heating 1500 Heating 1600 Cooling 1500 Cooling 1600 Heating 1600 Heating 1600 Indoor Fan Type Propeller Propeller Material PP PP Motor Type DC Motor 8 poles DC Motor 8 poles Input Power Outdoor Fan Output Power 60 60 m min ft min Cooling 700 Heating 700 11 74 410 12 88 45
57. llowed because these important contents are related to safety The meaning of each indication used is as below Incorrect installation or servicing due to ignoring of the instruction will cause harm or damage and the seriousness is classified by the following indications A WARNING This indication shows the possibility of causing death or serious injury A CAUTION This indication shows the possibility of causing injury or damage to properties The items to be followed are classified by the symbols Q This symbol denotes item that is PROHIBITED from doing Carry out test run to confirm that no abnormality occurs after the servicing Then explain to user the operation care and maintenance as stated in instructions Please remind the customer to keep the operating instructions for future reference AN WARNING Do not modify the machine part material during repairing service 2 If wiring unit is supplied as repairing part do not repair or connect the wire even only partial wire break Exchange the whole wiring unit 3 Do not wrench the fasten terminal Pull it out or insert it straightly 4 Engage authorized dealer or specialist for installation and servicing If installation of servicing done by the user is defective it will cause water leakage electrical shock or fire 5 Install according to this installation instructions strictly If installation
58. mote control transmission code short or open jumpers at the remote control printed circuit board Remote Control Printed Circuit Board ti Ts rill et n Jumper A J1 Jumper B D2 Remote Control No K den Short Open A Default 2 i T J T se Open Open B ta T Sif D2 Short Short C Short D During Remote Control Number Switch Mode press any button at remote control to transmit and store the transmission code to the EEPROM 4 REMOTE CONTROL RECEIVING SOUND OFF ON MODE The Remote Control Receiving Sound OFF ON Mode will be activated if the Auto OFF ON button is pressed continuously for more than 16 seconds 4 beep sounds will occur at 16th seconds to identify the Remote Control Receiving Sound OFF ON Mode is in standby condition and press AC Reset button at remote control 40 Press Auto OFF ON button to toggle remote control receiving sound Short beep Turn OFF remote control receiving sound Long beep ON remote control receiving sound After Auto OFF ON button is pressed the 20 seconds counter for Remote Control Receiving Sound OFF ON Mode is restarted 14 2 Remote Control Button 14 2 1 SET Button check remote control transmission code and store the transmission code to EEPROM o Press Set button continuously for 10 seconds by using poin
59. mperature Internal Setting Temperature gt 3 6 F e Compressor is ON after waiting for 3 minutes if the Intake Air Temperature Internal Setting Temperature lt Compressor OFF point 30 12 1 5 Automatic Operation This mode can be set using remote control and the operation is decided by remote control setting temperature remote control operation mode and indoor intake air temperature During operation mode judgment indoor fan motor with speed of Lo is running for 30 seconds to detect the indoor intake air temperature Every 10 minutes the indoor temperature is judged For the 1st judgment o If indoor intake temperature remote control setting temperature gt 3 6 F COOL mode is decided 1 3 6 lt indoor intake temperature remote control setting temperature lt 3 6 F DRY mode is decided o If indoor intake temperature remote control setting temperature lt 3 6 F HEAT mode is decided 1 L 1 10 8 9 0 7 2 54 36 18 0 18 36 54 72 90 108 I For the 2nd judgment onwards o If indoor intake temperature remote control setting temperature gt 5 4 F if previous operate in DRY mode then continue in DRY mode Otherwise COOL mode is decided o If 3 6 F lt indoor intake temperature remote control setting temperature lt 5 4 F maintain with previous mode o If indoor intake temperature remote control setting temperature lt 3 6 F HEAT
60. mperature of 80 F DRY BULB 67 F WET BULB and outdoor air temperature of 95 F DRY BULB 75 F WET BULB 2 Heating capacities are based on indoor temperature of 70 F DRY BULB 60 F WET BULB and outdoor air temperature of 47 F DRY BULB 43 F WET BULB 3 Specifications are subjected to change without prior notice for further improvement 3 Features Inverter Technology Wider output power range o Energy saving o Quick Cooling o More precise temperature control e Environment Protection o Non ozone depletion substances refrigerant R410A e Long Installation Piping o Long piping up to 100 foot e Easy to use remote control e Quality Improvement o Random auto restart after power failure for safety restart operation o Gas leakage protection o Prevent compressor reverse cycle o Inner protector to protect Compressor o Noise prevention during soft dry operation e Operation Improvement o Quiet mode to reduce the indoor unit operating sound o Powerful mode to reach the desired room temperature quickly Serviceability Improvement o Breakdown Self Diagnosis function 4 Location of Controls and Components 4 1 Indoor Unit Aluminium Fin Front Panel 52 222 5 lt lt Auto OFF ON button Air Filters Air Purifying Filter Remote Control Receiver INDICATOR Horizontal Airflow POWER Green Direction Louver TIMER Orange Do not adjust by han
61. nds will be heard lf no codes are matched Power LED will light up for 0 5 seconds and no sound will be heard The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operating the unit for 30 seconds The LED will be off if the unit is turned off or the RESET button on the main unit is pressed 15 2 3 To Display Memorized Error Code Protective Operation 1 2 3 4 7 8 Turn power on Press the CHECK button on the remote control will be displayed the remote control display Note Display only for No signal transmission no receiving sound and no Power LED blinking Press the TIMER A or Y button on the remote control The code HOO no abnormality will be displayed and signal will be transmit to the main unit Each press of the button A or V will increase error code number and transmit error code signal to the main unit When the latest abnormality code on the main unit and code transmitted from the remote control are matched Power LED will light up for 30 seconds and a beep sound continuously for 4 seconds will be heard If no codes are matched Power LED will light up for 0 5 seconds and no sound will be heard The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operating the unit for 30 seconds The same diagnosis can be repeated by turning power on again 15 2 4 To Clear Memori
62. ng such same may cause abnormally high pressure in the refrigeration cycle piping and possibly result in explosion and injury In case of using existing R22 Q pipes during installation of R410A models must carry out pump down properly to collect back the refrigerant and oil before installation new unit Thickness of copper pipes used with R410A must be more than 1 64 Never use copper pipes thinner than 1 64 It is desirable that the amount of residual oil is less than 0 0006 oz ft 19 During installation install the refrigerant piping properly before run the compressor Operation of compressor without fixing refrigeration piping and valves at opened condition will cause suck in of air abnormal high pressure in refrigeration cycle and result in explosion injury etc 20 During pump down operation stop the compressor before remove the refrigeration piping Removal of refrigeration piping while compressor is operating and valves are opened condition will cause suck in of air abnormal high pressure in refrigeration cycle and result in explosion injury etc 21 After completion of installation or service confirm there is no leakage of refrigerant gas It may generate toxic gas when the refrigerant contacts with fire 22 Ventilate if there is refrigerant gas leakage during operation It may cause toxic gas when the refrigerant contacts with fire 23 Do not insert your fingers or other o
63. nnect the Piping 11 4 2 1 Connecting the piping to indoor Please make flare after inserting flare nut locate at joint portion of tube assembly onto the copper pipe In case of using long piping Connect the piping Align the center of piping and sufficiently tighten the flare nut with fingers e Further tighten the flare nut with torque wrench in specified torque as stated in the table 11 4 2 2 Connecting the piping to outdoor Decide piping length and then cut by using pipe cutter Remove burrs from cut edge Make flare after inserting the flare nut locate at valve onto the copper pipe Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table 11 4 2 3 Gas Leak Checking Pressure test to system to 400 PSIG with dry nitrogen in stages Thoroughly leak check the system If the pressure holds release the nitrogen and proceed to section 4 27 Model A B D E18NKUA E24NKUA 24 1 8 5 5 32 5 8 14 3 16 Do not over tighten over tightening may cause gas leakage Piping size Torque 1 4 13 3 Ibf ft 3 8 31 0 Ibf ft 1 2 40 6 5 8 47 9 3 4 73 8 Ibf ft 4 or DO Torque wrench 11 43 Evacuation of the equipment WHEN INSTALLING AN AIR CONDITIONER BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the follow
64. nsmission error due to disturbed power supply waveform Troubleshooting When abnormality indication starts again For safety reason and to prevent Check the indoor outdoor units connection wires component breakdown always switch Caution off the power before remove and connect the component Is there any wiring error YES e Correct the indoor outdoor units connection wires NO Disconnect terminal 3 wire and measure Vdc between terminal 2 amp 3 from the outdoor unit 2 Is fluctuate between 20 70 NO 2 Replace oUtdoo PC YES Reconnect terminal 3 wire and measure Vdc between terminal 2 amp 3 from the outdoor unit Is Vdc fluctuate between 20 50Vdc NO Replace indoor unit PCB 4 N 15 4 2 H14 Indoor Intake Air Temperature Sensor Abnormality Malfunction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection e Faulty sensor Faulty PCB Troubleshooting When abnormality indication starts again For safety reason and to prevent component breakdown always switch off the power Turn off the power Caution before remove and connect the component Check the connector connection Is the connector connection normal NO Connector poor contact Correct the connection YES Check the
65. nt 3 times happen Total current protection Check refrigeration system protection within 20 minutes Power source or compressor lock F99 Outdoor direct current Continuous Power transistor module Power transistor module faulty or DC peak detection happen for 7 times current protection compressor lock Note o Frequency measured and fan speed fixed The memory data of error code is erased when the power supply is cut off or press the Auto Switch until beep sound heard following by pressing the CHECK button at remote control Although operation forced to stop when abnormality detected emergency operation is possible for certain errors refer to Error Code Table by using remote control or Auto OFF ON button at indoor unit However the remote control signal receiving sound is changed from one beep to four beep sounds 46 15 4 Self diagnosis Method 15 41 H11 Indoor Outdoor Abnormal Communication Malfunction Decision Conditions During startup and operation of cooling and heating the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal Malfunction Caused Faulty indoor unit PCB Faulty outdoor unit PCB Indoor unit outdoor unit signal transmission error due to wrong wiring Indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units Indoor unit outdoor unit signal tra
66. on starting time From above judgment the decided operation will start operation earlier than the set time as shown below Indoor intake air Indoor intake air temperature F temperature F 15 min 25 min 86 59 10 min 30 min 77 41 5 min 35 Outdoor air Outdoor air 86 95 CF 32 41 F temperature F temperature F Cooling Soft Dry Heating 12 8 2 OFF Timer Control OFF Timer can be set using remote control the unit with timer set will stop at set time 12 9 Auto Restart Control When the power supply is cut off during the operation of air conditioner the compressor will re operate within three to four minutes there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly after power supply resumes e This type of control is not applicable during ON OFF Timer setting 12 10 Indication Panel LED POWER TIMER QUIET POWERFUL Color Green Orange Orange Orange Light ON Operation ON Timer Setting ON Quiet Mode ON Powerful Mode ON Light OFF Operation OFF Timer Setting OFF Quiet Mode OFF Powerful Mode OFF Note e If POWER LED is blinking the possible operation of the unit are Hot Start during Deice operation operation mode judgment or ON timer sampling e f Timer LED is blinking there is an abnormality operation occurs 35 13 Protection Control 13 1 Protection Control For All Operations
67. open or short circuit sensor lead wire and connector abnormality H16 Outdoor current Current transformer faulty or Outdoor PCB faulty or transformer CT compressor faulty compressor faulty abnormality H19 Indoor fan motor Continuous Indoor fan motor lock or Fan motor lead wire and merchanism lock happen for 7 times feedback abnormal connector Fan motor lock or block H23 Indoor heat exchanger Continuous for 5s Indoor heat exchanger Indoor heat exchanger temperature sensor temperature sensor open or temperature sensor lead wire and abnormality short circuit connector H27 Outdoor air temperature Continuous for 5s Outdoor air temperature Outdoor air temperature sensor sensor abnormality sensor open or short circuit lead wire and connector H28 Outdoor heat exchanger Continuous for 5s Outdoor heat exchanger Outdoor heat exchanger temperature sensor 1 temperature sensor 1 open temperature sensor 1 lead wire abnormality or short circuit and connector H30 Outdoor discharge pipe Continuous for 5s Outdoor discharge pipe Outdoor discharge pipe temperature sensor temperature sensor open or temperature sensor lead wire and abnormality short circuit connector H33 Indoor outdoor Indoor and outdoor rated Indoor and outdoor units check misconnection voltage different abnormality H38 Indoor Outdoor Brand code not match Check indoor unit and outdoor mismatch brand code unit H98 Indoor high pressure Indoor high pressure Check
68. ose from the discharge grille a 12 Then pull the discharge grille downward gently to dismantle it Figure 6 68 CN DATA1 CN STM2 CN STM1 10 Detach the AC303 and CN FM connectors from the electronic controller Detach AC304 Red from terminal board Then pull out power electronic controller 16 1 1 3 To remove control board Bead ST a 13 Remove 4 screws holding the III control board then pull out the D control board Nm SN a Figure 7 16 1 1 4 To remove cross flow fan and indoor fan motor 14 Remove the screw that holding the cross flow fan and fan motor axis Figure 8 16 Remove the bearing by pulling it out gently 15 Remove the screw from the evaporator Figure 9 69 17 Push the holdfast to the left and lift up the evaporator Evaporator flow f 19 Fan motor can be removed after the Oses ANT removal of cross flow fan Reminder To reinstall the fan motor adjust the fan motor connector to 45 towards you before fixing control board 18 Remove the cross flow fan from the unit by pulling it to the left and downward Figure 10 Cross Flow Fan Reminder To reinstall the cross flow fan ensure cross flow fan is in line as shown in figure 11 Figure 11 70 17 Technical Data 17 1 Operation Characteristic
69. ot be any animal or plant which could be affected by hot air discharged Keep spaces indicated by arrows from wall ceiling fence or other obstacles not place any obstacles which may cause short circuit of the discharged air e f piping length is over the piping length for additional gas additional refrigerant should be added as shown in the table e Recommended installation height for outdoor unit should be above the seasonal snow level Btu h Piping Piping Piping Additional Length 1 for add gas ft E18NKUA 17100 Example For E18NKUA If the unit is installed at 41 ft distance the quantity of additional refrigerant should be 2 46 oz 41 32 8 ft x 0 3 oz ft 2 46 oz 32 8 ss ooo ze Length Eleva Length Length Refrige Gas Liquid rant oz ft 1 2 0 3 1 4 22 11 2 Indoor Outdoor Unit Installation Diagram Piping direction Front side up drain hose Right IR 1 Rear Right bottom Left Left bottom Attention not to bend 1 31 32 or moi Installation parts you should purchase X Insulation of piping connections Vinyl tape lt Attaching the remote control holder to the wall 7 Carry out insulation after checking for gas leaks and secure with vinyl tape Remote control holder fixing
70. pillary tube or dryer Replace outdoor unit PCB Replace outdoor unit compressor Procedure complete 15 4 19 F98 Input Over Current Detection Malfunction Decision Conditions During cooling and heating operation when an input over current 16 8A is detected by checking the input current value being detected by current transformer CT with the compressor running Malfunction Caused Over current due to compressor failure Over current due to defective outdoor unit PCB Over current due to defective inverter main circuit electrolytic capacitor Over current due to excessive refrigerant Troubleshooting When F98 indication happens For safety reason and to prevent component breakdown always switch off the power Caution before remove and connect the component Get restarted and measure the input current Is Input current gt 16 8A NO Replace the outdoor unit PCB YES Turn off power supply Check the main circuit electrolytic capacitor Normal YES Repair pipe or union nuts Reclaim and recharge refrigerant NO Check refrigerant amount NO Excess refrigerant YES e Reclaim and recharge with correct amount of refrigerant NO e Replace outdoor unit PCB Replace outdoor unit 65 15 4 20 F99 Output Over Current Detection Malfunction Decision Conditions During operation of cooling and heating when an output over current 18 5A is detected by checking
71. res Power supply point should be in an easily accessible place for power disconnection in case of emergency In some countries permanent connection of this air conditioner to the power supply is prohibited Fix power supply connection to a circuit breaker for the permanent connection Use NRTL approved fuse or circuit breaker rating refers to name plate for the permanent connection 8 Do not release refrigerant during piping work for installation servicing reinstallation and during repairing a refrigerant parts Take care of the liquid refrigerant it may cause frostbite Q 9 Installation or servicing work It may need two people to carry out the installation or servicing work 10 Do not install this appliance in a laundry room or other location where water may drip from the ceiling etc Q 11 Do not sit or step on the unit you may fall down accidentally Q 12 Do not touch the sharp aluminium fins or edges of metal parts Q If you are required to handle sharp parts during installation or servicing please wear hand glove Sharp parts may cause injury 2 Specification CS E18NKUA CS E24NKUA CU E18NKUA CU E24NKUA Phase Hz Single 60 Single 60 Power Supply CC z s Dw Te s D T ECA Capacity Running Current Input Power EER Btu hW Power Factor dB A 47 39 36 47 39 36 48 40 37 48 40 37 Power Level dB 631 1 631 1 641 1 641 1 dB A 49 49 51 51 Power Leve
72. rfectly it will cause heat up or fire at the connection point of terminal fire or electrical shock 12 When install or relocate air conditioner do not let any substance other than the specified refrigerant eg air etc mix into refrigeration cycle piping Mixing of air etc will cause abnormal high pressure in refrigeration cycle and result in explosion injury etc 13 Do not install outdoor unit near handrail of veranda When installing air conditioner unit at veranda of high rise building child may climb up to outdoor unit and cross over the handrail and causing accident 14 This equipment must be properly earthed Earth line must not be connected to gas pipe water pipe earth of lightning rod and Q telephone Otherwise it may cause electrical shock in case equipment breakdown or insulation breakdown 15 Keep away from small children the thin film may cling to nose and mouth and prevent breathing 16 Do not use unspecified cord modified cord joint cord or extension cord for power supply cord Do not share the single outlet with Q other electrical appliances Poor contact poor insulation or over current will cause electrical shock or fire 17 Tighten the flare nut with torque wrench according to specified method If the flare nut is over tightened after a long period the flare may break and cause refrigerant gas leakage 18 For R410A models when connecting the piping do not use any existing R22 pipes and flares nuts Usi
73. s 17 1 1 CS E18NK CU Cooling Characteristic E18NK 81 F DBT 66 F WBT High fan speed o Room temperature o Operation condition o Piping length 24 6ft o Compressor Frequency Fc 63 000 62 000 61 000 60 000 Outlet Air Temperature F 59 000 58 000 57 000 6 000 e 208 m 230 E 75 70 80 85 90 95 100 105 110 115 Outdoor Air Temperature F 5 800 5 600 5 400 5 200 _ Cooling Capacity kW 5 000 4 800 4 600 4 400 4 200 6 8 500 75 80 0 70 85 90 95 100 105 110 115 Outdoor Air Temperature F 8 000 7 500 7 000 A 6 500 6 000 A Current 5 500 A 5 000 4 500 4 000 6 147 000 145 000 143 000 141 000 139 000 Gas Side Piping Pressure PSI 137 000 135 000 133 000 4 0 65 70 75 80 8 Outdoor Air Temperature F 5 90 95 100 105 0 115 70 80 100 105 110 115 65 60 75 85 90 95 Outdoor Air Temperature F 71 Piping Length Characteristic Cooling o o o o Room temperature 81 F DBT 66 F WBT Operation condition High fan speed Outdoor temperature 95 F DBT Compressor Frequency Fc e 208 m 230 60 500
74. se position 32 e Manual vertical airflow direction can be set using remote control the angles of the vane are as stated above and the positions of the vane are as Figure 2 below When the air conditioner is stopped using remote control the vane will shift to close position Side View 136 4 F 122 0 F 96 8 F 86 0 F Close position 12 4 2 Horizontal Airflow e Automatic horizontal airflow direction can be set using remote control the vane swings left and right within the angles as stated below For heating mode operation the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below Operation Mode Vane Angle 68 112 Heating with heat exchanger temperature B 90 Cooling and Soft Dry 68 112 Top View 109 4 F 104 0 F B fix front Indoor Heat Exchanger Temperature e Manual vertical airflow direction can be set using remote control the angles of the vane are as stated below and the positions of the vane are as figure below Pattern 1 2 3 4 5 Airflow Direction Patterns at Remote x B ETE Control Vane Angle 90 68 78 102 112 12 5 Quiet Operation Cooling Mode Cooling Area of Dry Mode Purpose o provide quiet cooling operation compare to normal operation Control condition o Quiet operation start condition When Quiet button at remote control is pressed Quiet LED
75. sions of the piping slide the unit all the way to the left on the installation plate Refer to the section Cutting and flaring the piping 229554 Install the Indoor Unit 170050 Connect the piping J e Please refer to Connecting the piping column in outdoor unit section Below steps are done after connecting the outdoor piping and gas leakage confirmation Sega Insulate and finish the piping Please refer to Piping and finishing column of outdoor section and Insulation of piping connection column as mentioned in indoor outdoor unit installation 529024 Secure the Indoor Unit H B 24 Use shock absorber during pull out the piping to protect the intake grille from damage M 1 J ER 4 Shock absorber vU 1 Right Rear piping Tape it with piping in a position as mentioned in Fig below Cover for the bottom piping How to keep the cover In case of the cover is cut keep the cover at the rear of chassis as shown in the illustration for future reinstallation Left and 2 bottom covers for piping Right and Right Bottom piping Tape it with piping in a position as mentioned in Fig below Piping Cover for Cover for the the left bottom piping piping
76. t heat exchanger Air short circuit Detection error due to faulty indoor pipe temperature sensor Detection error due to faulty indoor unit PCB Troubleshooting When abnormality indication starts again Check the air passage Is there any short circuit YES Provide sufficient air passage z Check the air filter Clean the air filter Is the air filter dirty z o Check the dust accumulation on the indoor unit heat exchanger YES Clean the indoor unit heat exchanger Is the indoor unit heat exchanger dirty z Check the indoor heat exchanger temperature sensor z o Does it conform to the sensor characteristic chart e Replace the indoor unit PCB YES um Defect in indoor unit PCB Replace the indoor unit PCB 7 15 4 12 Malfunction Decision Conditions When cooling operation when indoor pipe temperature or indoor heat exchanger temperature sensor is above 113 0 F Malfunction Caused e Faulty connector connection e Faulty indoor pipe temperature sensor e Faulty indoor main PCB Troubleshooting Resistance kQ When abnormality indication starts again Check the indoor pipe temperature sensor connection 7 YES Does it cable connection loose or connector broken Does it conform to specification 70 EEE ip ES A Pipe temp Sensor 60 50 40 N Intake Air Temp Sensor AHHH NO
77. ted Is the motor control voltage 15Vdc pin 5 amp 4 generated Operate the fan is the rotation command voltage 1 5Vdc pin 6 amp 4 generated NO Replace indoor PCB e Replace fan motor 50 15 4 5 H23 Indoor Pipe Temperature Sensor Abnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection e Faulty sensor e Faulty PCB Troubleshooting When abnormality indication starts again Check the connector connection For safety reason and to prevent component e Plug out connector from the indoor unit PCB breakdown always switch off the power Measure the resistance of the indoor pipe temperature Caution before remove and connect the component sensor Is the connector connection normal NO Connector poor contact e Correct the connection YES Check the outdoor air temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor intake air temperature sensor Is the measured resistance of the outdoor intake air temperature sensor matches the value specified in its characteristic chart Defect in outdoor intake air temperature sensor Replace the outdoor intake air temperature sensor YES Detect in outdoor unit PCB Replace the outdoor
78. teen minutes after an operation is started 43 15 2 Breakdown Self Diagnosis Function 15 2 1 Self Diagnosis Function Three Digits Alphanumeric Code e Once error occurred during operation the unit will stop its operation and Timer LED blinks e Although Timer LED goes off when power supply is turned off if the unit is operated under a breakdown condition the LED will ON again In operation after breakdown repair the Timer LED will not blink The last error code abnormality will be stored in IC memory 15 2 2 1 2 3 7 8 To Make a Diagnosis Timer LED starts to blink and the unit automatically stops the operation Press the CHECK button on the remote control continuously for 5 seconds will be displayed on the remote control display Note Display only for No signal transmission no receiving OFF ONG sound and no Power LED blinking Press the TIMER A or button on the remote control The code no abnormality will be displayed and signal will be transmit to MODE ES A gr Temp QUIET POWERFUL AR SWING the main unit UR Each press of the button A or V will increase error code number and transmit error code signal to the main unit Check button 1 When the latest abnormality code on the main unit and code transmitted from the remote control are matched Power LED will light up for 30 seconds and a beep sound continuously for 4 seco
79. ter Press Timer Set button unit a beep sound is heard as confirmation of transmission code change 14 2 2 RESET RC clear and restore the remote control setting to factory default o Press once to clear the memory 14 2 3 RESET AC To restore the unit s setting to factory default o Press once to restore the unit s setting 14 24 TIMER A To change indoor unit indicators LED intensity o Press continuously for 5 seconds 14 2 5 TIMER Y To change remote control display from Degree Celsius C to Degree Fahrenheit F o Press continuously for 10 seconds 14 2 6 CLOCK Button Tochange the remote control time format o Press for more than 5 seconds 41 15 Troubleshooting Guide 15 1 Refrigeration Cycle System In order to diagnose malfunctions make sure that there are no electrical problems before inspecting the refrigeration cycle Such problems include insufficient insulation problem with the power source malfunction of a compressor and a fan The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions the standard values for them are shown in the table on the right Normal Pressure and Outlet Air Temperature Standard Gas Pressure Outlet air PSI Temperature kg cm G F 130 53 174 04 Cooling Mode 9 12 53 6 60 8 333 58 420 60 Heating Mode 23 29 96 8 113 0 Condition Indoor fan sp
80. th previous setting When fan speed is changed quiet operation is shifted to quiet operation of the new fan speed When operation mode is changed quiet operation is shifted to quiet operation of the new mode During quiet operation if timer on activates quiet operation maintains After off when on back quiet operation is not memorised e Control contents Fan speed auto o o Indoor FM RPM depends on pipe temperature sensor of indoor heat exchanger Auto fan speed is changed from normal setting to quiet setting of respective fan speed This is to reduce sound of Hi Me Lo for 3dB Fan speed manual Manual fan speed for quiet operation is 1 step from setting fan speed 12 7 Powerful Mode Operation When the powerful mode is selected the internal setting temperature will shift lower up to 3 6 F for Cooling Soft Dry or higher up to 6 3 F for Heating than remote control setting temperature for 20 minutes to achieve the setting temperature quickly 34 12 8 Timer Control 12 8 1 ON Timer Control e ON Timer can be set using remote control where the unit with timer set will start operation earlier than the setting time This is to provide a comfortable environment when reaching the set ON time 60 minutes before the set ON time indoor at fan speed of Lo and outdoor fan motor start operation for 30 seconds to determine the indoor intake air temperature and outdoor air temperature in order to judge the operati
81. the current that flows in the inverter DC peak sensing circuitry Malfunction Caused peak due to compressor failure peak due to defective power transistor s DC peak due to defective outdoor unit PCB Troubleshooting When F99 indication happens Get restarted and measure the input current NO Input current gt 18 5A YES Check the compressor winding resistance e Turn off the power and disconnect the harness U V and W Measure the winding resistance between U V V W and W U U V V W or U W shorted Are the compressor s winding resistance YES NO e Checking the power transistor For safety reason and to prevent component breakdown always switch off the power Caution before remove and connect the component Replace the outdoor unit PCB Compressor defective due to winding shorted Replace compressor Outdoor electronic circuit defect due to power transistor short Replace the outdoor unit PCB e Never touch any live parts for at least 10 minutes after turning off the circuit breaker f unavoidable necessary to touch live part make sure the power transistor s supply voltage is below 50V using the tester UVW make measurement at the Faston terminal on the board of the relay connector Tester s negative terminal Power transistor UVW Power transistor UVW Tester s positive terminal UVW Power transis
82. to 600 seconds 13 2 6 5 Cold Draught Prevention Control e When indoor pipe temperature is low cold draught operation starts where indoor fan speed will be reduced or stop e Horizontal vane angle may be adjusted in Auto vane setting 13 2 6 6 Deice Operation e When outdoor pipe temperature and outdoor air temperature is low deice operation start where indoor fan motor and outdoor fan motor stop and operation LED blinks Horizontal vane is closed during auto vane setting 39 14 Servicing Mode 14 1 Auto Off On Button Auto OFF ON Button pressed Auto OFF ON Button pressed Auto OFF ON Button pressed 5 sec Stop 5 sec Test Run Operation Forced cooling operation Auto Operation Test Run Operation Forced heating operation Stop Beep Beep x 2 1 AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF ON button is pressed This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction 2 TEST RUN OPERATION FOR PUMP DOWN SERVICING PURPOSE The Test Run operation will be activated if the Auto OFF ON button is pressed continuously for more than 5 seconds A beep sound will heard at the fifth seconds in order to identify the starting of Test Run operation Forced cooling operation Within 5 minutes after Forced cooling operation start the Auto OFF ON button is pressed for more than 5 seconds A 2 beep sounds will
83. tor UVW Power transistor Normal resistance Several kQ to several MQ Abnormal resistance 0 or x 66 16 Disassembly and Assembly Instructions A WARNING High Voltage is generated in the electrical parts area by the capacitor Ensure that the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks 16 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal Procedures 16 1 1 To remove front grille J 3 Hold both sides of the front grille and remove it by pulling up and toward your gently 1 Lift to open the vertical vane and intake grille gently 2 Remove 3 caps and 4 screws at the bottom of discharge vane and 1 screw at front grille Figure 1 16 1 1 1 remove power electronic controller 4 Remove the control board cover by releasing the hook Figure 2 67 8 Pull out the main 9 Detach 3 or 4 connectors as labeled from electronic controller and the electronic controller Then pull out power electronic main controller gently controller halfway 7 Remove screw to remove terminal board complete 6 Detach the CN DISP connector then remove the indicator complete 5 Detach the Earth wire Figure 3 Figure 4 AC303 White gently Figure 5 16 1 1 2 To remove discharge grille 11 Pull out to remove the drain h
84. ture and Indoor pipe temperature judgment by microcontroller is fulfilled o When Cooling or Dry mode is operated more than 20 minutes or more e This control stopped if o Compressor stopped o Remote control setting changed fan speed temperature o Outdoor air temperature and indoor intake temperature changed e Fan speed angle of louver vertical airflow angle will be adjusted accordingly in this control 1 Fan speed will be increased slowly when control is activated until predetermine value e Compressor frequency will be regulated accordingly 13 2 6 Protection Control For Heating Operation 13 2 6 1 Intake Air Temperature Control Compressor will operate at limited freq if indoor intake air temperature is 86 0 F or above 13 2 6 2 Outdoor Air Temperature Control The Max current value is regulated when the outdoor air temperature rise above 57 2 F in order to avoid compressor overloading 38 13 2 6 3 Overload Protection Control The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown below heat exchanger temperature exceeds 140 0 F compressor will stop OFF 140 0 F Frequency Reduced 125 6 F Frequency Limited 120 2 F 114 8 F 13 2 6 4 Low Temperature Compressor Oil Return Control heating operation if the indoor temperature falls below 17 6 F when compressor starts the compressor frequency will be regulated up
85. ully inserted over inserted fully inserted connecting terminal board 7 32 f or more No loose strand when inserted gap between ACCEPT PROHIBITED PROHIBITED wires 11 3 9 Cutting and flaring the piping 1 Please cut using pipe cutter and then remove the burrs 2 Remove the burrs by using reamer If burrs are not removed gas leakage may be caused Turn the piping end down to avoid the metal powder entering the pipe 3 Please make flare after inserting the flare nut onto the copper pipes E improper flaring Pipe 5 Reamer Bar Se Handie Bar Wek 17 Tit T gt Yoke Inclined S rface Cracked Uneven Z y damaged thi kness 2 gt When properly flared the internal surface of the Point down Clamp handle Red arrow mark OPP fare will evenly shine and be of even thickness pipe Since the flare part comes into contact with the 1 To cut 2 To remove burrs 3 To flare connections carefully check the flare finish 26 11 4 Outdoor Unit 11 4 1 Install the Outdoor Unit After selecting the best location start installation according to indoor outdoor unit installation diagram 1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut 813 32 2 When installing at roof please consider strong wind and earthquake Please fasten the installation stand firmly with bolt or nails 11 42 Co
86. zed Error Code after Repair Protective Operation 1 2 3 15 2 5 1 2 Turn power on in standby condition Press the AUTO button for 5 seconds a beep sound is heard on the main unit to operate the unit at Forced Cooling Operation Mode Press the CHECK button on the remote control for about 1 second with a pointed object to transmit signal to main unit A beep sound is heard and the Error Code is cleared Temporary Operation Depending On Breakdown Status Press the Auto OFF ON button on the main unit a beep sound is heard to operate the unit Remote control is enable again The unit can be temporarily be used until repaired Error Code Operation Temporary items H23 Cooling Emergency Operation H27 H28 Cooling Heating with limited power 44 15 3 Error Code Table Diagnosis Abnormality I Abnormality Protection Problem Check location display Protection control Judgement operation HOO No memory of failure Normal operation H11 Indoor outdoor After operation for Indoor fan only Indoor outdoor Indoor outdoor wire terminal abnormal 1 minute operation can communication not establish Indoor outdoor PCB communication start by entering Indoor outdoor connection wire into force cooling operation H14 Indoor intake air Continuous for 5s Indoor intake air temperature Indoor intake air temperature temperature sensor sensor

Panasonic E18NKUA Service Manual

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