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LG LA180CPI User's Manual

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3. Service Manual 69 Exploded View and Replacement Parts List Parts List indoor LOCATION DESCRIPTION LAN181CNW ASNC183VML3 REMARKS LA180CPF ASNC183UML3 131410 CHASSIS ASSEMBLY 3141A20008J R 135311 1 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A20124K R 135311 2 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A20124J R 135311 3 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A20125G R 135316 GRILLE ASSEMBLY FRONT INDOOR 3531 10334 135500 1 COVER 3550A20512B R 135500 2 COVER 3550A20120B R 135500 3 COVER 3550A20121B R 146811 MOTOR ASSEMBLY STEP 4681A20055A R 147581 LOUVER HORIZONTAL 4758A20033A R 147582 LOUVER VERTICAL 4758A20034A R 152302 FILTER MECH A C 5230A10011A R 159830 AIR CLEANER ASSEMBLY 5983A20006P R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A20825A R 263230 THERMISTOR ASSEMBLY 6323A20004N R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20083R R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20462D R 268714 PWB PCB ASSEMBLY MAIN 6871A20387J R 330870 DRAIN PAN ASSEMBLY 3087A20013B R 346810 1 MOTOR ASSEMBLY INDOOR 4681A20047C R 346810 2 MOTOR ASSEMBLY INDOOR 4681A20047D R 349490 ORIFICE ASSEMBLY 4949A20002C R 352115 TUBE ASSEMBLY EVAPORATOR IN 5211A20302C R 352116 TUBE ASSEMBLY EVAPORATOR OUT 5211A20301F R 35211B TUBE ASSEMBLY TUBING 5211A30038X R 352150
4. gt EEE peme z P Switch wH N T BLOCK1 L4 SUB PCB BK 1 vi o4 00000 WH 1 00000 oc 3854A20393Z 16 Room Air Conditioner Operation Details u Operation Details DISPLAY 1 C O Model Operation Indicator ON while in appliance operation OFF while in appliance pause Flashing while in disconnection or short in Thermistor 3 sec off 0 5 sec on Sleep Timer Indicator ON while in sleep timer mode OFF when sleep timer cancel or appliance operation pause Timer Indicator ON while in timer mode on off OFF when timer mode is completed or canceled Comp Running Incidator While in appliance operation ON while in outdoor unit compressor running OFF while in compressor off 2 H P Model Operation Indicator ON while in appliance operation OFF while in appliance pause Flashing while in disconnection or short in Thermistor 3 sec off 0 5 sec on Sleep Timer Indicator ON while in sleep timer mode OFF when sleep timer cancel or appliance operation pause Timer Indicator ON while in timer mode on off OFF when timer mode is completed or canceled Defrost Indicator OFF except when hot start during heating mode operation or while in defrost control E Co
5. ROOM TEMPERATURE SETTING BUTTONS EX Used to select the room temperature Used to select fan speed in four steps amp low medium high and CHAOS C_D JET COOL Used to start or stop the speed cooling speed cooling S operates super high fan speed in cooling mode CHAOS SWING BUTTON Used to stop or start louver movement and set Edi the desired up down airflow direction C ON OFF TIMER BUTTONS Used to set the time of starting and stopping operation TIME SETTING BUTTONS Used to adjust the time TIMER SET CANCEL BUTTON Used to set the timer when the desired time is obtained and to cancel the Timer operation SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature NEO PLASMA OPTIONAL Used to start or stop the plasma purification function RESET BUTTON Used prior to resetting time 2nd F Button Used prior to using modes printed in blue at the bottom of buttons AUTO CLEAN OPTIONAL Used to set Auto Clean mode C TO F SWITCHING BUTTON Used to switch temperature reading from Centigrade to Fahrenheit Service Manual 43 Disassembly of the parts Indoor unit E Disassembly of the parts Indoor unit Warning Disconnect the unit from power supply before making any checks Be sure the power switch is set to OFF 1
6. Bolt Tubing connection 3 Evaluation of the performance Operate unit for 15 20 minutes then check the system refrigerant charge 1 Measure the pressure of the gas side service valve 2 Measure the temperature of the intake and discharge of air 3 Ensure the difference between the intake tempera ture and the discharge is more than 8 C 46 F Cool ing or Heating 42 Room Air Conditioner Intake temperature Discharge air Discharge temperature 4 For reference the gas side pressure of optimum con dition is as below Cooling Outside ambient The pressure of the gas side Refrigerant TEMP service valve R 410A 35 C 95 8 5 9 5kgiom G 120 135 PS G NOTE If the actual pressure is higher than shown the system is most likely over charged and charge should be removed If the actual pressure are lower than shown the system is most likely undercharged and charge should be added The air conditioner is now ready for use PUMP DOWN This is performed when the unit is to be relocated or the refrigerant circuit is serviced Pump Down means collecting all refrigerant in the outdoor unit without loss in refrigerant gas CAUTION Be sure to perform Pump Down procedure with the unit cooling mode Pump Down Procedure 1 Connect a low pressure gauge manifold hose to the charge port on the gas side service valve 2 Open
7. OSCOTB CST 8 00MTW CN D2 WH g 17 18 1920 2 22 3 24 6 26 7 28 29 30 30 5V Hve PIN2 HVB ASSY 25 RO2A 20k BV HVE PINT cian 5 sov 108 R1H R26H 124K 1 1C01A KIA7036P KSC7536 eceiver CN TH1 WH WH 4 124K CN CON WH ive PINT ve ive PIN2 12V ROH 62k 1 ORSH ORSH ORZH ORTH SHO Med Low F p FGI om oor win CN T2V WH RB A 1K m i 103 POLY SWi RXE250 POLY swz RXE250 OUTDOOR CNMOTORI WH CN MOTOR2 YL 67 Service Manual Schematic Diagram Outdoor Unit
8. 3 Close the valve Lo side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed A CAUTION Use vacuum pump equipped with check value applied to be prevented from flowing backward Service Manual 51 2 way 3 way Valve 4 Gas Charging After Evacuation Check valve Charging cylinder Outdoor unit Procedure 1 Connect the charge hose to the charging cylinder Connect the charge hose which you dis con nected from the vacuum pump to the valve at the bottom of the cylinder f you are using a gas cylinder also use a scale and revers the cylinder so that the system can be charged with liquid 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air Be careful of the liquid refriger ant The procedure is the same if using a gas cylinder 3 Open the valve Lo side on the charge set and charge the system with liquid refrigerant If the system can not be charged with the spec ified amount of refrigerant it can be charged with a little at a time approximately 150g each time while operating the air conditioner in t
9. 6 website http www lgservice com LG EN Room Air Conditioner SERVICE MANUAL MODELS LAN181CNW ASNC183VML3 LAU181CNW ASUC183VML3 LA180CPI ASNC183VML3 LA180CPO ASUC183VML3 CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL Air Conditioner Service Manual TABLE OF CONTENTS Details of 2006 LG Model 2 22 nennen nennen 3 Salety eee ecce ot aio eb ded ate M esti tase 4 Functions uo EL caged 10 Product Referentes diee tede n aude ds 12 Dimensions e Sede bie cues bL 19 Refrigeration Cycle 15 Wirlng Diagtalfi OD Lu P LE 16 Opetatiori D lais o e A RA E 17 Display Function us eh dete t dE etn du Aes 23 Self diaghosis hi DU D mtd 23 PAE 24 tS 25 iod Re teed 42 Disassembly of the parts Indoor cece cece eens eee eeeeeeeeeeseeeeseeeseaeseeeeseeeeeanesaees 43 2 3 Way Valve bios vim ote o ad dtd idea 46 Cycle Troubleshooting Guide 54 Electronic Control D6VIGG xot
10. er oe ol ek e d ec M 14 Hoom Air Conditioner Refrigeration Cycle Diagram E Refrigeration Cycle Diagram INDOOR UNIT OUTDOOR UNIT LIQUID SIDE TILA CAPILLARY TUBE 1 1 1 1 1 EXCHANGER EVAPORATOR HEAT EXCHANGER CONDENSER GAS SIDE COMPRESSOR Pipe size Diameter e Piping length Elevation MODEL Gas Liquid Rated Max Rated Max 18K Cooling Only 1 2 1 7 5m 24 6ft 30m 98 4ft 5m 16ft 15 49 For installation over rated proper quantity of refrigerant should be added for each meter Ex 18K When installed at a distance of 30m 450g of refrigerant should be added 18K 20g 30 7 5 x 20g 450g a proper quantity of refrigerant Service Manual 15 Wiring Diagram Wiring Diagram 18K Cooling Only Models WIRING DIAGRAM CN TH1 CN MOTOR2 CN MOTOR1 CN UD CN DC DC CN LR1 CN LR2 lz BK CN D1 CN D2 77 OPTION 1 DISPLAY Ecersw Han CONNECT INDOOR WIRING DIAGRAM 3854A20246X RY COMP B 9 0 Adid LNO ND ZHL NO 102 3 4 RY COMP A 3 4 T BLOCK2 3 4
11. Indoor Fan is driven by a low speed At this point the wind speed is not controlled by the remote controller When operated in the Sleeping Mode the wind speed is set to the low speed by force i Cause by the remote controller Caused by other parts except the remote controller ids marn 1 iS displayed Check the contact of CN D1 D2 connector es When the detect switch double key inside the remote controller door is fault it is impossible to operate Sheek DISP temperature regulating A w and wind speed selecting Voltage between CN D2 9 DC 5V Check the connecting circuit between the remote controller Check point MICOM No R17 2Q IR LED Q1 R16 2 2KQ e Check the connecting circuit between PIN 6 R75 1K C71 1000PF MICOM PIN Check Receiver Ass y 56 Hoom Air Conditioner Cycle Troubleshooting Guide 4 Compressor Outdoor Fan are unable to drive Turn on Main Power d Operate Cooling Mode k by setting the desired temperature of the remote controller is less than one of the indoor temperature by 2 F at least d When in Fan Mode Compressor Outdoor Fan is stopped d Check the sensor for indoor temperature is attached as close as to be effected by the temperature of Heat Exchanger EVA d When the se
12. Power supply line 19 115V 208 230V Low voltage line Conduit panel connecting cable Solid wire T 3 Loop 3 N 2 7 Insulation Strand wire Strip 10mm 3 8 1 4 Round terminal Screw with special washer 4 E Round terminal Screw with special washer Wire Terminal plate Round terminal Wire Service Manual 35 Installation After the confirmation of the above conditions prepare the wiring as follows 1 Never fail to have an individual power circuit specifically for the air conditioner As for the method of wiring be guided by the circuit diagram posted on the inside of control cover 2 The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could cause burn out of the wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 Confirm that the starting voltage is maintained at more than 90 percent of the rated volt age marked on the name plate 6 Confirm that the cable thickness is as specified in the power source specification Particularly note the relation between cable length and thickness 7 Always install an GFCI circuit breaker in a wet or moist area 8 The following would be caused by voltage drop Vib
13. Sleep Mode Timer ON or Timer OFF Sleep Operation 1 2 8 4 5 6 7 Off Timer Os Airflow Direction Control M Air Circulation Fan Operates without cooling or heating To Swiching Button T RESET Service Manual 11 Product References N Product References Items Unit LA 181CNW AS C183VML3 LA180CP AS C183VML3 Power Supply 0 V 1 208 230 60 Cooling Capacity BTU h 17 800 18 000 Input W 2 000 2 000 Running Current A 9 8 8 9 COMP Locked Rotor AMP A 25 2 S E E R 13 Air Circulation m min cfm 13 460 Moisture Removal I h pts hr 2 5 5 3 Noise Level Indoor High dB A 3 44 Sound Med dB A 3 40 Pressure 1m Low dB A 3 36 Outdoor Max dB A 3 55 Features Temperature Control Thermistor Air Deflection 4 way Steps Fan Cool 3 4 Airflow Direction Control up amp down Auto Airflow Direction Control left amp right Auto Remocon Type Wireless LCD Setting Temperature Range Cooling Mode 64 86 F 18 30 C Temperature Increment 2 F 1 C Auto Operation electronic control Yes Self Diagnosis Yes Timer 24hr On Off Sleep Operation Yes Healthy Dehumidification Mode Yes Restart Delay minutes 3 Refrigerant R 410A Charge g oz 900 31 8 Power cord AWG P mm 14 3 2 5 Fuse or breaker Capacity A 20 Connecting Cable AWG P mm 18
14. a torque of 1 8 kg m Be sure to check for gas leakage A CAUTION Do not leak the gas in the air during Air Purg ing Service Manual 49 2 way 3 way Valve 2 Balance refrigerant of the 2 way 3 way valves Gas leakage Indoor unit Outdoor unit w CBE lt 9 Procedure 3 Open the valve Lo side on the charge set and discharge the refrigerant until the gauge indicates 0 kg cm G If there is no air in the refrigerant cycle the pressure when the air conditioner is not run ning is higher than 1 kg cm G discharge the refrigerant until the gauge indicates 0 5 to 1 kg cm eG if this is the case it will not be neces sary to apply a evacuatin Discharge the refrigerant gradually if it is dis charged too suddenly the refrigeration oil will also be discharged 1 Confirm that both the 2 way and 3 way valves are set to the back seat 2 Connect the charge set to the 3 way valve s port Leave the valve on the charge set closed Connect the charge hose with the push pin to the service port 50 Hoom Air Conditioner 3 Evacuation All amount of refrigerant leaked 2 way 3 way Valve LAN E 1501 Outdoor unit Procedure 1 Connect the vacuum pump to the charge set s center hose 2 Evacuation for approximately one hour Confirm that the gauge needle has moved toward 76 cmHg vacuum of 4 mmHg or less
15. and the connecting cable Be sure that the drain hose is located at the lowest side of the bundle Locating at the upper side can cause drain pan to overflow inside the unit Gas side piping Connecting OS cable M 1 Liquid side piping OO Drain hose __ tet NOTE If the drain hose is routed inside the room insulate the hose with an insulation material so that dripping from sweating condensation will not damage furniture or floors Foamed polyethylene or equivalent is recommended 3 Indoor unit installation Hook the indoor unit onto the upper portion of the installation plate Engage the two hooks of the rear top of the indoor unit with the upper edge of the instal lation plate Ensure that the hooks are properly seat ed on the installation plate by moving it left and right Connecting cable Drain hose 4 Connecting the pipings to the indoor unit and drain hose to drain pipe Align the center of the pipes and sufficiently tighten the flare nut by hand 4 Flare nut Pipes Indoor unit tubing e Tighten the flare nut with a wrench to Open end wrench fixed Flare nut Wrench Connection pipe Indoor unit tubing 32 Room Air Conditioner Outside diameter Torque mm inch Kgf cm 26 35 1 4 180 250 29 52 3 8 340 420 012 7 1 2 350 660 215 88 5 8 630 820 219 05 3 4 990 1210 When extending the drain hose at the indoor un
16. curve of outdoor temperature Read suction pressure at the axis of ordinates The method of using equation Calculate suction pressure after putting indoor and outdoor temperature into the equation Operating Suction Pressure For R410A According to Indoor amp Outdoor Temperature At operating the Unit for 10 minutes e d 2 99 pe 592 52 a 6 5 10 15 20 25 30 35 40 Indoor Temp P 3 0 0123 x Tout 0 8 x Tin Where P Suction Pressure kg cm g Tout Outdoor Temperature C Tin Indoor Temperature C Service Manual 53 Cycle Troubleshooting Guide Cycle Troubleshooting Guide 1 Trouble analysis 1 Check temperature difference between intake and discharge air and operating current Temp Difference Operating Current Notice Current Temp difference approx 0 F less than 80 of rated current Current Temp difference approx 8 C 14 F less than 80 of rated current Current Temp difference less than 8 C 14 F less than 80 of rated current Temp difference over 8 C 14 F All amount of refrigerant leaked out Check refrigeration cycle Refrigerant leakage Clog of refrigeration cycle Defective compressor Excessive amount of refrigerant Normal Temperature difference between intake and discharge air depends on room air humidity When the
17. ni oth dE fo i 64 schemalie s i o TE A E 67 Exploded View and Replacement Parts 69 2 Hoom Air Conditioner Details of 2006 LG Model Name a Details of 2006 LG Model Name Code Type Code of Model Meaning 1 Producing Center L ChangWon R22 A ChangWon R410A C ChangWon R407C Refrigerant 2 Type of Air conditioner S Split Type Air conditioner 3 Cooling Heating C C O H H P X C O E H Z H P E H 4 5 Capacity Btu h 1 9 Cooling Heating Capacity Ex 09 gt 9 000Btu h 6 Electric Range 1 9 Electric Standard 1 gt 115V 60Hz 6 gt 220 240V 50Hz 2 gt 220V 60Hz 7 gt 110V 50 60Hz 3 208 230V 60Hz 8 gt 380 415V 50Hz 5 gt 200 220V 50Hz 9 gt 380 415V 60Hz 7 Chassis Name of tool of unit 8 Color R Mirror B Blue N Walut W White M Metal C Cherry 9 Function Basic A Basic 4Way B Plasma Filter C Plasma Filter 4Way D Tele LED 4Way E Tele LCD Plasma F 4Way F Tele Multi LCD Plasma F 4Way G Low A Plasma F H Low A Plasma F 4Way J Plasma F 4Way Oxygen Generator K A change Plasma F L A change Plasma F 4Way M 10 Serial No 0 9 Service Manual 3 Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage the follo
18. room air humid ity is relatively higher temperature difference is smaller When the room air humidity is relatively lower temperature difference is larger 2 Check temperature and pressure of refrigeration cycle Suction pressure Compared with the normal value Temperature Compared with the normal value Cause of Trouble Description Defective compressor High Defective 4 way reversing valve Higher Excessive amount of refrigerant High goes not quickly rise at the beginning of operation Insufficient amount of Current is low Lower Higher refrigerant Leakage Clogging Current is low Notice 1 The suction pressure is usually 8 5 9 5 kg cm G at normal condition 2 The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with put ty 54 Room Air Conditioner 2 Product does not operate at all Cycle Troubleshooting Guide Refer to Electronic Control Device drawing and Schematic diagram Turn off Main Power Job After 20 seconds Turn on Main Power Does beeping sound is made from the Indoor Unit US Check the voltage of power About AC 208V AC230V 60Hz Primarily the operating condition of Micom is OK Main power s voltage Voltage applied to the unit Connecting method of Indoor Outdoor connecting cable Check PWB Ass y Outdoor unit Fuse Pat
19. the gas side service valve halfway and purge the air from the manifold hose using the refrigerant gas Close the liquid side service valve all the way in Turn on the unit s operating switch and start the cooling operation When the low pressure gauge reading becomes 1 to 0 5kg cm2 G 14 2 to 7 1 P S I G fully close the gas side valve stem and then quickly turn off the unit At that time Pump Down has been completed and all refrigerant gas will have been collected in the outdoor unit A E Operation The controls will look like the following Signal transmitter OHO 00 nmt OG eT aD mamam RIBBB EN E B88 3 Bv 11 8 13 14 3 Operation Mode Vv 3 e od 10 KAOS OON 9 cen pny 12 rior 16 CIF 17 RESET 15 Le Flip up door opened Cooling Operation UF Auto Operation or Auto Changeover A UF Healthy Dehumidification Operation Heating Operation Cooling Model lt Heat Pump Model amp 8 10 11 12 13 14 15 16 17 START STOP BUTTON OPERATION MODE SELECTION BUTTON INDOOR FAN SPEED SELECTOR Operation Operation starts when this button is pressed and stops when the button is pressed again Used to select the operation mode
20. to the input by the remote control E Protection of the evaporator pipe from frosting If the indoor pipe temp is below 0 C in 7 min after the compressor operates without any pause while in cool ing cycle operation mode the compressor and the outdoor fan are turned off in order to protect the indoor evaporator pipe from frosting When the indoor pipe temp is 7 C or higher after 3 min pause of the compressor the compressor and the outdoor fan is turned on according to the condition of the room temperature E Buzzer Sounding Operation When the appliance operation key is input by the remote control the short beep beep sounds When the appliance pause key is input by the remote control the long beep sounds When a key is input by the remote control while the slide switch on the main unit of the appliance is on the forced operation position the error sound beep beep beep beep beep is made 10 times to indicate that the remote control signal cannot be received 22 Room Air Conditioner a Display Function 1 Heating Model Operation Indicator eC ooling Soft Dry Fan Heating Sleep Timer Indicator 8 leep Mode Timer Indicator Timer Mode Defrost Indicator Hot start Defrost ok 2 Cooling Model Display Function Compressor on Indicator Operation Indicator D Cooling Soft D
21. 18 Hoom Air Conditioner Operation Details Fuzzy Operation C O Model According to the temperature set by Fuzzy rule when the intake air temp is 0 5 C or more below the setting temp the compressor is turned off When 0 5 C or more above the setting temp the compressor is turned on Compressor ON Temp gt Setting Temp 0 5 C Compressor OFF Temp gt Setting Temp 0 5 C At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 26 C lt Intake Air Temp 225 C 24 C lt Intake Air Temp lt 26 C gt Intake Air Temp 1 C 22 C lt Intake Air Temp lt 24 C gt Intake Air Temp 0 5 C 18 C lt Intake Air Temp lt 22 C gt Intake Air Temp Intake Air Temp lt 18 C 218 When the Fuzzy key Temperature Control key is input after the initial setting temperature is selected the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule While in Fuzzy operation the airflow speed of the indoor fan is automatically selected according to the temperature Fuzzy Operation H P Model When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off the operation mode is selected When determining the operation mode the compressor the outdoor fan and the 4 way valve are off and only th
22. 2 2 OL P 6750U LO58A R 649950 CONTROL BOX ASSY OUTDOOR 4995A20383W R 668711 PWB PCB ASSY MAIN OUTDOOR 6871A10184E R WOCZZ 1 CAPACITOR DRAWING 3A00988B R WOCZZ 2 CAPACITOR DRAWING 6120AR2194D R 430410 BASE ASSY OUTDOOR 3041AP2741G R 435511 COVER ASSY CONTROL OUTDOOR 3551AR7184T R 437210 PANEL ASSY FRONT OUTDOOR 3721A20005H R 437212 PANEL ASSY REAR OUTDOOR 3720AP0003D R 550140 2 ISOLATOR COMP 4H00637A R 546810 MOTOR ASSY OUTDOOR 4681A20013N R 566000 SWITCH PRESSURE 6600L000013 R 435512 COVER ASSY TOP OUTDOOR 3H03266P R 552110 TUBE ASSEMBLY CONDENSER OUT 5211A25034C R 552200 VALVE EXPANSION BODY 5220A90003B R 561411 COIL ASSEMBLY EXPANSION 6141A20032A R 435301 GRILLE DISCHARGE 3530A20007B R 447910 BARRIER ASSEMBLY OUTDOOR 4791A30004K R 263230 1 THERMISTOR ASSEMBLY 6323A20002L R 263230 2 THERMISTOR ASSEMBLY 6323A20016A R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 72 Hoom Air Conditioner P No 3828A20065Y Printed in Korea
23. 4 0 75 Connecting Tube Liquid Side mm in 6 35 1 4 6 Socket Flare Gas Side mm in 12 7 1 2 Length std m ft 7 5 25 Additional Drain Hose Outer Dia mm in 19 3 4 Dimensions Indoor mm 928 522 147 WxHxD in 361 2 2019 32 55 32 Outdoor mm 870 655 320 in 341 4 2518 16 125 8 Net Weight Indoor kg Ibs 17 37 5 Outdoor kg Ibs 68 149 9 Gross Weight Indoor kg Ibs 19 41 9 Outdoor kg Ibs 71 156 5 NOTE Please refer to Label Quality on the product since this specification may be changed for improving performance 12 Room Air Conditioner Dimensions B Dimensions 928 522 DE Pipe Hole Fix Hole Indoor Unit 928 36 5 522 20 6 147 5 8 Service Manual 13 Dimensions Gas side 3 way valve Liquid side 2 way valve 5 oO Hl SA C x ail Q 5 ol vw Ol 9 5 S 5 HO 5 Q Q INIO AINI al SC o E m N 1 o o 5165 65 EB S S S S S S S S S S S S Q E E E E E E E E E E E EE E E E E E E E E E E E EIE z l olo a
24. 50 50wt NOTE Never mix with other refrigerants Example Split type 12 000 Btu h 120 100 100 80 60 40 20 0 R 410A 10096 70 50 30 0 R 22 0 30 50 70 100 4 High pressure 1 6 times higher than R 22 High Pressure refrigerant may cause personal injury Boiling Pt C Vapor pressure 25 C kg f cnf Vapor density 25 C kg m R 410A 51 4 15 9 R 22 40 8 9 6 64 44 4 Do not handle the pipe by yourself customer High pressure refrigerant may cause personal injury manifold gauge charging and any piping tools must be dedicated to R 410A systems Service Manual 27 Installation Read completely then follow step by step 1 Select the best location 1 Indoor unit E Do not have any heat or steam near the unit E Select a place where there are no obstacles in front of the unit E Make sure that condensation drainage can be con veniently routed away E Do not install near a doorway E Ensure that the space around the left and right of the unit is more than 50cm 19 7 The unit should be installed as high on the wall as possible allowing a minimum of 10cm 3 9 from ceiling E Use a stud finder to locate studs to prevent unnec essary damage to the wall More than 50cm 19 7 More than 2m 6 6ft t CAUTION Install the indoor unit on the wall where the height from the floors more than 2m 6 6ft 2 Outdoor u
25. Do not use the existing charge set for R 22 It is necessary to use new charge set for R 410A The pressure of R 410A is 1 6 times higher than that of R 22 Thus the high pres sure side gauge of charge set should be used higher pressure gauge of 50kg cm range 1 Re air purging Re installation 2 way 3 way Valve Liquid side Outdoor unit Procedure 1 Confirm that both the 2 way valve and the 3 way valve are set to the closed position 2 Connect the charge set and a gas cylinder to the service port of the 3 way valve Leave the valve on the gas cylinder closed 3 Air purging Open the valves on the gas cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on the 2 way valve 4 Check for gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the gas cylinder and dis charge the refrigerant until the gauge indicates 3 to 5 kg cm g 6 Disconnect the charge set and the gas cylin der and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stem nuts and the service port nut Use torque wrench to tighten the service port nut to
26. HOSE ASSY DRAIN 5251AR1222R R 352380 1 AIR GUIDE 5238A10009A R 352380 2 AIR GUIDE 5238A10010A R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20104C R 359012 1 FAN TURBO 5900A00004A R 359012 2 FAN TURBO 5900A00005A R 135313 GRILLE ASSEMBLY INLET 3531A10270T R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE hittp biz LGservice com 70 Room Air Conditioner Exploded View and Replacement Parts List 2 Outdoor unit 18K SS Service Manual 71 Exploded View and Replacement Parts List Parts List outdoor PART No ae DESCRIPTION LAU181CNW ASUC183VML3 REMARKS LA180CPO ASUC183VML3 552203 1 VALVE SERVICE 2H02479B R 552203 2 VALVE SERVICE 5220A20006A R 554031 CONDENSER ASSY BENT 5403A20058B R 554160 1 COMPRESSOR SET 2520UGJK2AA R 554160 2 COMPRESSOR SET 2520UGAK2AA R 559010 FAN ASSY PROPOLLER 1A00195B R 567502 1 O L P 6750U L039A R 56750
27. Liquid side 3 way valve Close 2 way valve Open Cap 3 Evacuation Connect the charge hose end described in the pre ceding steps to the vacuum pump to evacuate the tub ing and indoor unit Confirm the Lo knob of the manifold valve is open Then run the vacuum pump The operation time for evacuation varies with tubing length and capacity of the pump The following table shows the time required for evacuation Required time for evacuation when 30 gal h vacuum pump is used If tubing length is less than 10m if tubing length is longer than 10m 39 ft 39 ft 10 min or more 15 min or more When the desired vacuum is reached close the Lo knob of the manifold valve and stop the vacuum pump 4 Finishing the job With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve Turn the valve stem of gas side valve counter clock wise to fully open the valve Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose Replace the flare nut and its bonnet on the gas side Service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system Replace the valve caps at both gas and liquid side Service valves and fasten them tight This completes air purging with a vacuum pump The air conditioner is n
28. OTOR CON NECTOR d Do the voltage of terminal of CN DC DC CONNECTOR in Outdoor unit corresponds to the values in the table of page 63 Check the pattern and the condition of Indoor unit PWB Check the patterns and the conditions of outdoor unit PWB Assy s Check the connecting condi tion and disconnection of connecting wires between Indoor and Outdoor unit Check the interference of Indoor Fan Check the motor of Indoor Fan x Indoor Fan may be stopped in the Soft Dry Mode change to the Cooling Operation Mode Indoor Fan is to be stopped when Indoor pipe coil termperature is lower than 79 At that times Defrost indicator is turned on 58 Room Air Conditioner Cycle Troubleshooting Guide 6 When Vertical Louver does not operate Confirm that the Vertical Louver is normally geared with the shaft of Step ping Motor If the regular torque is detected when rotating the Vertical Louver with hands Normal Check the connecting condition of CN U D CN L R Connector Check the soldering condition on PWB of CN U D CN L R Connector RE Check the operating circuit of the Vertical Louver e Confirm that there is DC 12V between pin RED of CN U D CN L R and GND Confirm that there is a soldering short at following terminals Between 62 61 60 and 69 of MICOM Between 67 66 65 and 64 of MICOM Bet
29. ROEM Oro Ri2M ef Emm j o 36 z e ola E gas C90 88 200 ooi vn e e e e 8 eS ad 15 i ciai 4 Tso ee za 835 9 B ee Boe is E i H 8 To els e ig 66660606 pt 8 S eje s e 8 MESES E s P Electronic Control Device DISPLAY PM e TOP VIEW i B PCR ASN 6871420462 BOTTOM VIEW E 22 555 5 24a M O 0000o P 66 Room Air Conditioner Schematic Diagram B Schematic Diagram STEPPING MOTOR STEPPING MOTOR STEPPING MOTOR STEPPING MOTOR Vout ve RECEIVER DISPLAY Test KEY SUB PCB ASM STEPPING MOTOR ale v ona s 4 s 2 5 4 2 1 1 CN UD BL 1 2 K DGSOD4AF CN LR1 WH CN D1 WH KIDG5004AF R02E20 BZOIE LJ STEP MOTOR LIRI Icom KID65004AF o3 2 61 6 58 57 6 55 54 53 52 51 50 49 4002 ROIG 220 RO2G 220 OIMCRNEO02M uPD780023AGC R04G 220 ROSG 220 220 RO7G 220 CN LRAWH STEP MOTOR L R2 103 30 vaso 11 12 13 14 15 16 eceiver
30. To remove the Grille from the Chassis Push mark v on the grille bottom then pull it down and remove 3 securing screws Lift the both lower parts of panel front After pull down this panel a bit separate connecting wire with product 2 To remove the Control Box Before removing the control box be sure to disconnect the wires from PWB Pull the cover control out from the control box and disconnect other wires Remove securing screws Pull the control box out from the chassis carefully 44 Hoom Air Conditioner 2 Panel Front Connector CN DO DC CN UD CN TH1 CN MOTOR 2 RIGHT CN MOTOR 1 LEFT Disassembly of the parts Indoor unit 3 To remove the Evaporator Remove 1 screws securing the evaporator Pull the evaporator out from the chassis carefully put Pa q 4 Before removing the Turbo Fan Remove the securing screws from the chassis A Air Guid Pull the pipe cover top cover and the air guide 5 remove the Motor Remove the securing bolt from the motor shaft Pull the fan out from the motor shaft Remove 4 screws securing motor mount from the chassis and lift up the motor mount and the bracket Motor Mount Service Manual 45 2 way 3 way Valve n 2 way 3 way Valve 2 way Valve Liquid Side 3 way Valve Ga
31. ameter Torque mm inch Kgf cm 06 95 1 4 180 250 09 52 3 8 340 420 912 7 1 2 550 660 015 88 5 8 630 820 019 05 8 4 990 1210 Bad case Outdoor unit E Following bending type from left to right could cause Liquid side piping Smaller diameter problem of pipe damage Gas side piping Bigger A diameter Torque wrench Service Manual 33 Installation 1 Connection of the cable 1 Remove the cover control from the unit by loosening the 3 screws 2 Dismount caps on the conduit panel 3 Temporarily mount the conduit tubes on the conduit panel 4 Properly connect both the power supply and low voltage lines to the corresponding terminals on the terminal block 5 Ground the unit in accordance with local codes 6 Be sure to size each wire allowing several inches longer than the required length for wiring 7 Use lock nuts to secure the conduit tubes Connector trade size for this unit is 1 2 Refer to How to connect wiring to the terminals for instructions on connecting depending on the wire type you are using WARNING Be sure to comply with local codes while running the wire from the indoor unit to the outdoor unit size of wire and wiring method etc Every wire must be connected firmly wire should be allowed to touch refrigerant tubing the compressor or any moving parts Power Supply Wiring Diagram Connecting cable Low voltage Indoor Unit Outdoo
32. and in the piping must be purged If air remains in the refrigeration pipes it will affect the compressor reduce to cooling capacity and could lead to a malfunction laos Al rl Outdoor unit Service port nut Be sure using a torque wrench to tighten the service port nut after using the service port so that it prevents the gas leakage from the refrigeration cycle CAUTION Do not leak the gas the air during Air purging Procedure 1 Recheck the piping connections 2 Open the valve stem of the 2 way valve coun terclockwise approximately 90 wait 10 sec onds and then set it to closed position Be sure to use a hexagonal wrench to operate the valve stem 3 Check for gas leakage Check the flare connections for gas leakage 4 Purge the air from the system Set the 2 way valve to the open position and remove the cap from the 3 way valve s service port Using the hexagonal wrench to press the valve core pin discharge for three seconds and then wait for one minute Repeat this three times 5 Use torque wrench to tighten the service port nut to a torque of 1 8kg cm A Caution If gas leakage are discovered in step 3 above take the following mesures If the gas leaks stop when the piping connections are tightened further continue working from step 4 If the gas leaks do not stop when the connections are retightened repair the location of t
33. ard length and maximum allowance length is on the basis of reliability Oil trap should be installed every 5 7 meters 16 4 23ft 3 Preparing work for Installation 1 Open panel front B First Pull the grille bottom then remove screws 2 pieces and close grille bottom again The moment of lifting the both lower parts of panel front you can hear sound this panel came out In this time panel front is separated Bi After pull down this panel a bit and separate con necting wire with product Panel Front Connector Installation 2 Cover pipe and cover side remove E Remove two screws for fixing cover pipe E Pull up the cover side of desired connecting direc tion then cover side is separated In case connecting direction is left or right path through the hole of cover side N CAUTION After removing the pipe hole cut the burr for safety N Pipe hole Side cover When connecting pipe path through rear wall don t remove the hole 3 Drain hose junction E Remove the rubber stopple of desired drain direc tion E As the following picture Insert drain hose in the handle of drain pan and join drain hose and con necting hose Adhesive a Connecting Drain hose rubber cap Service Manual 29 Installation 4 How to fix installation plate 5 Preparing work for installation 1 Drill a hole in the wall The wall you select should be strong and sol
34. asy E Tape the piping and connecting cable from down to up drain flow Secure the taped piping along the exterior wall Form a trap to prevent water entering the room B Fix the piping onto the wall by saddle or equivalent Seal a small opening around the pipings with gum type sealer Downward slope E Do not make drain piping 5 Do not raise 5 YA i drain water A Air Tip of drain hose 5 Le FA k ss than 2 Y dipped in water 50mm gap E a t i A Wi Wi Wat z ater LA gt leakage i Ditch Q leakage leakage Service Manual 37 Installation 2 CAUTION 4 If a power plug is not to be used provide a circuit breaker between power source and the unit as shown below Main power source Air L Circuit Breaker Use a circuit breaker or time delay fuse 3 Connect the cable to the indoor unit 1 Connect the wires to the terminals on the control board individually according to the outdoor unit connection Ensure that the color of the wires of outdoor unit and the terminal No are the same as those of indoor unit respectively Refer to Wiring diagram on page16 WARNING Be sure to refer to the wiring diagram label inside the grille and carry out the correct field wiring Wrong wiring can cause the unit to misoperate Connecting cable to result in a fire hazard Check local electrical codes and any s
35. e Troubleshooting Guide 8 The phenomena in case of connecting error INDOOR UNIT Connector Type Condition Phenomena CN DC DC Open and connecting error The same as the phenomenon of Outdoor Unit o G0 p Blue Black Brown 4 Red The indoor fan does not operate Open The operation indicator of Indoor unit blinks 8 times Open The up down vane does not operate CN UD Short between terminals The up down vane does not smoothly operate CN D1 D2 Open It does not operate with a remote controller The operation indicator blinks once On for 0 5 second Open Off for 3 seconds The compressor and the outdoor fan stop The indoor fan speed is low CN TH The operation indicator blinks once Short between terminals on for 0 5 second off for 3 seconds 6 and of ROOM TH The compressor operates continuously regardless of the setting temperature and the variation of room temperature Short between terminals The operation indicator blinks once XD and of PIPE TH on for 0 5 second off for 3 seconds Continuous operation Service Manual 61 Cycle Troubleshooting Guide OUTDOOR UNIT Connector Type Condition Phenomena All functions stop The operation with the remote controller forced and OPEN test one do not operate CN POWER Connecting reversely PWB pattern is damaged when applying t
36. e compressor is turned off When below the setting temp the compressor is turned on Compressor ON Temp 2 Setting Temp Compressor OFF Temp 3 Setting Temp 3 C While in compressor on the indoor fan is off when the indoor pipe temp is below 20 C when above 28 C it operates with the low or setting airflow speed When the indoor pipe temp is between 20 C and 28 C it oper ates with Super Low while in sleep mode with the medium airflow speed While in compressor off the indoor fan is off when the indoor pipe temp is below 33 C when above 35 C it operates with the low airflow speed If overloaded while in heating mode operation in order to prevent the compressor from OLP operation the outdoor fan is turned on off according to the indoor pipe temp While in defrost control both of the indoor and outdoor fans are turned off E Defrost Control While in heating mode operation in order to protect the evaporator pipe of the outdoor unit from freezing reversed to cooling cycle to defrost the evaporator pipe of the outdoor unit After 40 min heating mode operation at 4 min interval whether to carry out defrost control or not and the time of defrost control are determined according to the following conditions 1 While in heating mode operation the maximum of the indoor pipe temperature is measured and it is com pared with the present indoor pipe temperature to get the difference of the indoor pipe temperatures the
37. e indoor fan is operated for 15 seconds Then an operation mode is selected according to the intake air temp at that moment as follows 24 C lt Inatake Air Temp 2 Fuzzy Operation for Cooling 21 C lt Inatake Air Temp lt 24 C gt Fuzzy Operation for Dehumidification Inatake Air Temp lt 21 C gt Fuzzy Operation for Heating If any of the operation modes among cooling dehumidification heating mode operations is carried out for 10 sec or longer before Fuzzy operation the mode before Fuzzy operation is operated 1 Fuzzy Operation for Cooling According to the setting temperature selected by Fuzzy rule when the intake air temp is 0 5 C or more below the setting temp the compressor is turned off When 0 5 C or more above the setting temp the compressor is turned on Compressor ON Temp gt Setting Temp 0 5 C Compressor OFF Temp gt Setting Temp 0 5 C At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 26 C lt Intake Air Temp 225 C 24 Intake Air Temp lt 26 C gt Intake Air Temp 1 C 22 C lt Intake Air Temp lt 24 C gt Intake Air Temp 0 5 18 C lt Intake Air Temp lt 22 C 2 Intake Air Temp Intake Air Temp lt 18 C 218 When the Fuzzy key Temperature Control key is input after the initial setting temperature is selected the Fuzzy key value and the intake air temperature at that time are compared to select th
38. e setting temperature automatically according to the Fuzzy rule While in Fuzzy operation the airflow speed of the indoor fan is automatically selected according to the tem perature Service Manual 19 Operation Details 2 Fuzzy Operation for Dehumidification According to the setting temperature selected by Fuzzy rule when the intake air temp is 0 5 C or more below the setting temp the compressor is turned off When 0 5 or more above the setting temp the compressor is turned on Compressor ON Temp D Setting Temp 0 5 C Compressor OFF Temp 2 Setting Temp 0 5 C At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 26 lt Intake Air Temp 225 C 24 C lt Intake Air Temp lt 26 C gt Intake Air Temp 1 C 22 lt Intake Air Temp lt 24 C 2 Intake Air Temp 0 5 C 18 lt Intake Air Temp lt 22 C gt Intake Air Temp Intake Air Temp lt 18 C 218 When the Fuzzy key Temperature Control key is input after the initial setting temperature is selected the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule While in Fuzzy operation the airflow speed of the indoor fan repeats the low airflow speed or pause as in dehumidification operation 3 Fuzzy Operation for Heating According to the setting temperature selected by Fuzzy rule wh
39. en the intake air temp is 3 C or more above the setting temp the compressor is turned off When below the setting temp the compressor is turned on Compressor ON Temp gt Setting Temp Compressor OFF Temp gt Setting Temp 3 C At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 20 CxIntake Air Temp gt Intake Air Temp 0 5 C Intake Air Temp lt 20 C gt 20 C When the Fuzzy key Temperature Control key is input after the initial setting temperature is selected the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule While in Fuzzy operation the airflow speed of the indoor fan is set to the high or the medium according to the intake air temperature and the setting temperature E Airflow Speed Selection The airflow speed of the indoor fan is set to high medium low or chaos auto by the input of the airflow speed selection key on the remote control E On Timer Operation When the set time is reached after the time is input by the remote control the appliance starts to operate The timer LED is on when the on timer is input It is off when the time set by the timer is reached If the appliance is operating at the time set by the timer the operation continues 20 Hoom Air Conditioner Operation Details E Off Timer Operation When
40. eter Torque wrench EX Flaring tool set Service Manual 25 Installation Installation Installation parts you should purchase More than 2 3 9 10 1 7 More than 19 6 bO0cm sem Left and right A Sleeve CX Bushing Sleeve x IRB Putty Gum Type Sealer 6 9 j Re Bend the pipe as closely B on the wall as possible but be careful that it doesn t break are identical I No A Vinyl tape Wide To carry out the drainage test remove the air filters and pour water into the heat exchanger Saddle x 4 Apply after carrying out a H drainage test More than H 24 60cm More than H 12 30 Gas side piping CX Optional Part Liquid side piping Optional Part Ej Additional drain pipe n Vinyl tape Narrow Cx More than 28 70cm Connecting cable CX Optional Part 26 Room Air Conditioner Installation 1 Check the quality label on the indoor and outdoor unit 2 Make certain that the refrigerant is R 410A NOTICE THIS PRODUCT CONTAINS R 410A REFRIGERANT 1 Different compressor oil R 410A Polyol ester R 22 Mineral Do not mix the existing mineral oil Do not apply used pipe tools and gauges covered with the existing mineral oil 2 Absorption of moisture Compressor s oil has the high absorption rate of moisture 3 Composition R 410A R32 R125
41. he cooling cycle however one time is not suffi cient wait approximately 1 minute and then repeat the procedure pumping down pin 52 Hoom Air Conditioner This is different from previous procedures Because you are charging with liquid refrigerant from the gas side absolutely do not attempt to charge with larger amounts of liquid refrigerant while operating the air conditioner 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the gas to be dis charged If the system has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose 5 Mount the valve stem nuts and the service port nut Use torque wrench to tighten the service port nut to a torque of 1 8 kg m Be sure to check for gas leakage A CAUTION This unit is charged with R 410A Pay attention not to charge R 22 2 way 3 way Valve Additional gas charging Gas leakage When refrigerant is insufficient by leakage recharge the unit with the refrigerant up to normal oper ating suction pressure Use the graph or the equation below to get operating suction pressure according to indoor and out door temperature Suction pressure was measured at 3 way valve service port after operating the unit for 10 minutes The method of using graph Find outdoor temperature Find indoor temperature onto the
42. he leak dis charge all of the gas through the service port and then recharge with the specified amount of gas from a gas cylinder Service Manual 47 2 way 3 way Valve 2 Pumping down Liquid side Purge the air Outdoor unit Procedure 1 Confirm that both the 2 way and 3 way valves are set to the open position Remove the valve stem caps and confirm that the valve stems are in the raised position Be sure to use a hexagonal wrench to operate the valve stems 2 Operate the unit for 10 to 15 minutes 3 Stop operation and wait for 3 minutes then connect the charge set to the service port of the 3 way valve Connect the charge hose with the push pin to the service port 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to air purge from the charge hose 5 Set the 2 way valve to the closed position 48 Room Air Conditioner 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1kg cm g 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indi cating 3 to 5kg cm g 8 Disconnect the charge set and mount the 2 way and 3 way valve s stem nuts and the ser vice port nut Use torque wrench to tighten the service port nut to a torque of 1 8 kg m Be sure to check for gas leakage A CAUTION
43. he power All functions stop or the compressor does not operate OPEN The operation with the remote controller forced and test RY COMP one do not operate teria All functions stop Connecting reversely The operation with the remote controller forced and test one do not operate All functions stop CN TRANS OPEN The operation with the remote controller forced and test one do not operate CN FAN OPEN The Indoor Fan does not operate The connecting All functions stop wire of CN OPEN The operation with the remote controller forced and test DC DC and one do not operate Indoor and Out The only signal of remote controller operation stop is door Unit Connecting error inputted but the product does not operate DOO The RED indicator of outdoor unit blinks 5 times after 2 minutes with applying the power The beep sound such as beep beep beep beep Blue beep occurs periodically in Indoor unit 6 Black Connecting error The signal input of a remote controller and operation of product is impossible a S i The RED indicator blinks 5 times after 2 minutes with applying the power Connecting error 2 The signal of remote controller is inputted but the product does not operate The RED indicator of outdoor unit and the operation indicator of indoor one blinks 5 times after 2 minutes with applying the power Connecting error 6 No power for Indoor unit The signal i
44. id enough to prevent vibration e Drill the piping hole with a 50mm hole core drill Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side Mount the installation plate on the wall with type A screws If mounting the unit on a concrete wall use anchor bolts E Mount the installation plate horizontally by aligning WALL the centerline using a level Indoor Outdoor Installation Plate 1 5 7mm 0 2 0 3 Type A screw B Measure the wall and mark the centerline It is also important to use caution concerning the location of the installation plate routing of the wiring to power outlets is through the walls typically Drilling the hole through the wall for piping connections must be done safely EVE LY J Dep U EI EIC Ew SS a e 60mm 60mm S 2 4 2 4 0 70mm 70mm 2 8 2 8 30 Hoom Air Conditioner 1 Flaring work Main cause for refrigerant leakage is due to defect in the flaring work Carry out correct flaring work using the following procedure 1 Cut the pipes and the cable Use the piping kit accessory or pipes purchased locally Measure the distance between the indoor and the outdoor unit Cut the pipes a little longer than the measured distance Cut the cable 1 5m longer than the pipe le
45. it install the drain pipe Indoor unit drain hose Adhesive Vinyl tape narrow 5 Wrap the insulation material around the connecting portion Overlap the connection pipe insulation material and the indoor unit pipe insulation material Bind them together with vinyl tape so that there is no gap Plastic bands Insulation material a Wrap the area which accommodates the rear piping housing section with vinyl tape ndoor Connection i unit pipe pipe Vinyl tape wide Wrap with vinyl tape Connecting cable Vinyl tape narrow Bundle the piping and drain hose together by wrap ping them with vinyl tape for enough to cover where they fit into the rear piping housing section Wrap with vinyl tape Vinyl tape wide Drain hose Installation CAUTION 3 Connection of the pipes Outdoor Installation Information For right piping 1 Align the center of the pipings and sufficiently tighten the flare nut by hand Good case For right piping Follow the instruction below B Press on the upper side of clamp and unfold the tubing to downward slowly N Finally tighten the flare nut with torque wrench until the wrench clicks e When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Outside di
46. llapses the air con ditioner could fall with it causing property damage product failure and personal injury E Operation Use a dedicated outlet for this appliance There is risk of fire or electric shock Safely Precautions Do not install the product on a defective installation stand For installation always contact the dealer or an Authorized Ser vice Center There is risk of fire electric shock explosion or injury t may cause injury accident or damage to the product ZA y 5 Do not handle the pipe by your self customer Install the indoor unit on the wall where the height from the floors more then 8ft 2 4m High Pressure refrigent may cause personal injury There are sharp moving parts that could cause personal injury 8ft 2 4m Do not allow water to run into electric part Grasp the plug to remove the cord from the outlet Do not touch it with wet hands There is risk of fire failure of the product and or electric shock There is risk of fire or electric shock Service Manual 5 Safety Precautions Do not store of use flammable gas or combustibles near the air conditioner Do not let the air conditioner run for a long time when the humidi ty is very high and a door ora window is left open Do not place a heater or other appliances near the power cable There is risk of fire failure of the Moisture may co
47. maximum temperature of indoor pipe the present temperature of indoor pipe according to which whether to carry out defrost control or not is determined 2 According to the need of defrost control shown above and the elapsed time of heating mode operation at that moment the defrost control time is determined 3 When the determined time of defrost control is below 7 min heating mode operation continues without carry ing out defrost control According to the procedure stated above the determination is made again When the defrost control time is 7 min or longer defrost control is then carried out While in defrost control the minimum temp of the indoor pipe is measured and it is compared with the present temp of the indoor pipe to get the difference of the indoor pipe temperatures the present temperature of the indoor pipe the minimum temperature of the indoor pipe When the difference is 5 C or higher defrost con trol is completed and heating mode operation is carried out While in defrost control if the defrost time determined before the start of defrost control is completed defrost control stops and heating mode operation is carried out regardless of the above condition When the indoor pipe temp is 42 C or above defrost control is not carried out even if the condition is one of the defrost conditions above While in defrost control the compressor is on and the indoor fan the outdoor fan and the 4 way valve are off
48. n a fire They may burn or explode e VS If the liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote if the batteries have leaked The chemicals in batteries could cause burns or oth er health hazards Service Manual 9 Functions M Functions Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature sensor THERMISTOR Room temperature control Maintains the room temperature in accordance with the Setting Temp Starting Current Control Indoor fan is delayed for 5 sec at the starting Time Delay Safety Control Restarting is inhibited for approx 3 minutes Indoor Fan Speed Control High Med Low CHAOS Operation indication Lamps LED e 2 v 2 D 8 S Receives the signals from the remote control Signal receiving sound two short beeps or one long beep Operation Indication Lamps O On Off Lights up during the system operation Sleep Mode Lights up during Sleep Mode Auto operation Timer Lights up during Timer operation Defrost Mode Lights up during Defrost Mode or Hot Start operation Heat pump model only Outdoor unit operation Lights up during outdoor unit operation Cooling model only Operation indication lamps Soft Dry Operation Mode Intermittent operation of fan at low speed Sleep Mode Auto Control The fan is s
49. ndense and wet There is risk of fire or product fail product and or electric shock Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur Some ventilation by opeing win dow is necessary for the fresh air Stop operation and close any window in storm or hurricane before the hurricane arrives There is risk of property damage failure of product or electric shock or damage furnishings When flammable gas leaks turn off the gas and open a window for venti lation before turning the product on Do not use the telephone or turn switches on or off There is risk of explosion or fire Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is 5 equipped There is risk of physical injury electric shock or product f Unplug the unit if strange sounds odors or smoke comes from it Ne Tis A d a There is risk of fireproduct failure and or electric shock When the product is soaked flooded or submerged contact an Authorized Service Center There is risk of electrical shock 6 Hoom Air Conditioner Ventilate the product from time to time when operating it togeth er with a stove etc There is risk of fire or electrical shock Unplug the appliance before performing cleaning or mainte nance There is risk of electric
50. ngth x 5 Slanted Uneven Rough doe 2 Burr removal Completely remove all burrs from the cut cross sec tion of pipe tube Put the end of the copper tube pipe in a downward direction as you remove burrs in order to avoid drop ping burrs into the tubing Pipe Reamer 3 Putting nut on Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after flaring work Flare nut Copper tube 4 Flaring work Firmly hold copper pipe in a die in the dimension shown in the table above Outside diameter A mm inch mm 26 35 1 4 1 1 1 3 29 52 3 8 1 5 1 7 012 7 1 2 1 6 1 8 215 88 5 8 1 6 1 8 Installation Carry out flaring work using flaring tool as shown below Clamp handle Red arrow mark 5 Check Compare the flared work with figure below If flare is noted to be defective cut off the flared sec tion and re flare it Smooth all round Inside is shiny without scratches at y Improper flaring Inclined Surface Cracked Uneven damaged thickness Even length all round 2 Connection of piping Indoor Preparing the indoor unit s piping and drain hose for installation through the wall 1 Route the indoor tubing and the drain hose in the direction of rear left or right Service Manual 31 Installation 2 Tape the tubing drain hose
51. nit If an awning is built over the unit to prevent direct sunlight or rain exposure make sure that heat radia tion from the condenser is not restricted E Ensure that the space around the back and sides is more than 30cm 12 The front of the unit should have more than 70cm 27 5 of space Do not place animals and plants in the path of the warm air Take the air conditioner weight into account and select a place where noise and vibration are mini mum Bi Select a place so that the warm air and noise from the air conditioner do not disturb neighbors 50cm 19 7 than 60cm 24 P el More than 30cm 12 More than 30cm 12 2 More than 70 28 K 28 Room Air Conditioner E Rooftop Installations If the outdoor unit is installed on a roof structure be sure to level the unit Ensure the roof structure and anchoring method are adequate for the unit loca tion Consult local codes regarding rooftop mount ing 2 Piping length and elevation Standard Max Additional Length Elevation length Refrigerant m B m A m gm Capacity Pipe Size Btu h GAS LIQUID 7 5 15 30 18k 12 1 46m 49 28 64 20 N Outdoor unit Indoor unit 8 Indoor unit Outdoor unit M X z A N Outdoor unit V 2 In case more than 5m 16 4ft CAUTION Capacity is based on stand
52. nput of the remote controller and opera tion of product is impossible The thermal protector of the Power Trans operates when let it alone for long time Connecting error The signal of the remote controller is inputted The fuse and Q61 in the Outdoor unit are damaged when the indoor fan is operated Connecting error amp No power for Indoor unit The signal input of the remote controller and opera tion of product is impossible The RED indicator of the Outdoor unit blinks 5 times after 2 minutes with applying the power 62 Hoom Air Conditioner Cycle Troubleshooting Guide 9 Voltage of Connectors according to Indoor Fan Speed 8 9Q 9Q NO ooaino 9Q 9Q NO HOOQNI 0 S 0 0S YOLOW NO 2 846 HOOQNI MO IH SYOLTANNOO 01F abe0A 381 STAGOWN Y V dNOO AH Y Ndu Bunoeuuo Bunoeuuo 100 Joopu Joopyno pue Joopu usamjeq Bunoeuuo ASSY 8Md HOOQNI Service Manual 63 Electronic Control Device E Electronic Control Device 888 e TOP VIEW 8888 TEE 5 CN LR1 WH gt c
53. nsor circuit for indoor temperature and connector are in bad connection or are not engaged Compressor Outdoor Fan is stopped e Check the related circuit of R02 12 1K R04 6 2K Micom No 27 Indoor unit Check the indoor temperature sensor is disconnected or not About 10kQ at 77 F d When the temperature around Outdoor PWB Ass y is above 163 F the com pressor is stop and only Outdoor Fan is operating d Check Relay RY COMP for driving compressor When the power About AC200V is applied to the connecting wire terminal support transferred to compressor PWB Ass y is normal Check the circuit related to the relay Outdoor unit Check point COMP ON COMP OFF Between Micom No D o End ONE DC5V DCOV Between ICO2M No 9 Below DC 1V and ICO1M ICO2M No 8 app ADUT De Tov x Turn off Main Power l1 Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor Service Manual 57 Cycle Troubleshooting Guide 5 When Indoor Fan does not operate Does the voltage of each terminals of CN MOTOR CONNECTOR in Indoor unit corresponds to values in the Table of page 63 d E Does the voltage of terminal of CN DC DC CONNECTOR in Indoor unit corresponds to the values in the table of page 63 Check connecting condition of the CN M
54. o2L H e HUBCBL CN DC DC lt BL gt ICOiD Gb 8888 55 CN MOTORI WH gt OSCO1B co7D LM 8 8 8 8B e _ E ym E 0 o 9 G CN MOTOR2 WH gt POLY S W2 O PWB 6870A20017A VIEW BUZZER PUB ASM 6871620387 a s 3 it 8888 2 o Gb CO2D K 5 C81R81 NS Roro co S Si o e 8 8 8 8 NN zz L3 CO6D Z Z pud 9 elele 5 o 5 5 caiA 0814 L PWB ASSY SVC PART LIST OPTIONAL FUNCTION NO MODEL P No OR1H OR2H OR3H OR4H OR5H OR6H 1 18K Cooling Model 6871A20387J 12K 20K 27K 12K OPEN OPEN OJ1H OJ2H SHORT 64 Room Air Conditioner Electronic Control Device 9 9 3 PWB 68706807328 cw nearer cede 1 CRI 6871010184 RY_COMPCA_60 RY_COMP lt B_40 e 5 2 FUSE 4 4 4 i O i 3 9H Fe o enis 73 158 TRANSL ZNRO3 w LO3H NFOJ 02 OO Guo 888 RY_HEATER CN OUT PIPE
55. oling Mode Operation When the intake air temperature reaches 0 5 C below the setting temp the compressor and the outdoor fan stop When it reaches 0 5 above the setting temp they start to operate again Compressor ON Temp 2 Setting Temp 0 5 C Compressor OFF Temp gt Setting Temp 0 5 C While in compressor running operating with the airflow speed set by the remote control While in compressor not running operating with the low airflow speed regardless of the setting E Healthy Dehumidification Mode When the dehumidification operation input by the remote control is received the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature 26 lt Intake Air Temp 2 250 24 C lt Intake Intake Air Temp 26 C 2 Intake Air Temp 1 C 18 lt Intake Intake Air Temp 24 C 2 Intake Air Temp 0 5 C Intake Air Temp 18 C 2 18 C Service Manual 17 Operation Details While in compressor off the indoor fan repeats low airflow speed and pause While the intake air temp is between compressor on temp and compressor off temp 10 min dehumidifica tion operation and 4 min compressor off repeat Compressor ON Temp 2 Setting Temp 0 5 C Compressor OFF Temp 2 Setting Temp 0 5 C In 10 min dehumidification operation the indoor fan operates with the low airflow speed E Heating Mode Operation When the intake air temp reaches 3 above the setting temp th
56. ose the cylinder valve when the gauge reading reached 150 P S I G Next test for leaks with liquid soap A CAUTION To avoid nitrogen entering the refrigerant system a liquid state the top of the cylinder must be higher than its bottom when you pressurize the system Usually the cylinder is used in a vertical standing position Installation Do a leak test of all joints of the tubing both indoor and outdoor and both gas and liquid side service valves Bubbles indicate a leak Be sure to wipe off the soap with a clean cloth After the system is found to be free of leaks relieve the nitrogen pressure by loosening the charge hose connector at the nitrogen cylinder When the system pressure is reduced to normal disconnect the hose from the cylinder Indoor unit gauge Charge hose Nitrogen gas cylinder in vertical standing position Service Manual 39 Installation Soap water method Gas side 1 Remove the caps from the 2 way and 3 way valves 2 Remove the service port cap from the 3 way valve 3 To open the 2 way valve turn the valve stem coun terclockwise approximately 90 wait for about 2 3 sec and close it 4 Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connec tions by a soft brush to check for leakage of the connecting points of the piping 5 If bubbles come out the pipes have leakage
57. ow ready to test run Vacuum pump 40 Room Air Conditioner Installation Panel Front A 1 First Check the side cover assembly exactly Fix power cord in the bottom groove of cover side left 2 Assemble connecting lead wire with controller and first fix the upper part of panel front then match the lower part of panel front Panel Front Connector 3 Drive three screws Service Manual 41 Installation 1 Check that all tubing and wiring have been properly connected 2 Check that the gas and liquid side service valves are fully open 1 Prepare remote control 1 Remove the battery cover by pulling it according to the arrow direction 2 Insert new batteries making sure that the and of battery are installed correctly 3 Reattach the cover by pushing it back into position NOTE Use 2 AAA 1 5volt batteries Do not use recharge able batteries Remove the batteries from the remote control if the system is not going to be used for a long time 2 Settlement of outdoor unit e Anchor the outdoor unit with a bolt and nut o 10mm tightly and horizontally on a concrete or rigid mount When installing on the wall roof or rooftop anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake In the case when the vibration of the unit is conveyed to the hose secure the unit with an anti vibration bushing
58. pecified wiring instructions or limitations 38 Room Air Conditioner 1 Air purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below Pressure in the system rises Operating current rises Cooling or heating efficiency drops Moisture in the refrigerant circuit may freeze and block capillary tubing Water may lead to corrosion of parts in the refrigera tion system Therefore the indoor unit and tubing between the indoor and outdoor unit must be leak tested and evacu ated to remove any noncondensables and moisture from the system 2 Air purging with vacuum pump 1 Preparation Check that each tube both liquid and gas side tubes between the indoor and outdoor units have been prop erly connected and all wiring for the test run has been completed Remove the service valve caps from both the gas and the liquid side on the outdoor unit Note that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage 2 Leak test Connect the manifold valve with pressure gauges and dry nitrogen gas oylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for air purging If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 150 P S I G with dry nitrogen gas and cl
59. r Unit circuit Ground L1 is neutral for 115V models 1 gt shows field wiring 2 Separately wire the high and low voltage line 3 Use heat proof electrical wiring capable of withstanding temperatures up to 167 F 4 Use outdoor and waterproof connection cable rated more than 300V for the connection between indoor and outdoor unit For example Type SJO WA AWG MIN Fuse or breaker 0 Capacity Model Power source 18K 10 208 230 14 18 20A 34 Room Air Conditioner Outdoor unit Terminal block Conduit panel Connecting cable t Power supply cord Cover control 2 Connection method of the connecting cable Example 1 Dismount two caps on the conduit panel 2 Make a hole appropriate for the passage of connection cable through on cap by tool for low voltage line 3 Pass the connecting cable through the hole 4 Properly connect the cable on the terminal block 5 Fix the connection cable with clamp cord provided on the unit not to have strain at the terminal when the connection cable is pulled outside up to a 35 pound weight 6 Wind the vinyl tape round the connecting cable for sealing between the surface of the connection cable and cap 7 Mount the taped part of cable on the cap 8 Finally mount the holed cap with the wound cable on the conduit panel Loose wiring may cause the terminal to overheat or result in
60. ration of a magnetic switch which will damage the contact point open fuse disturbance of the normal function of the overload 9 The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm 0 12in in each active phase conductors 36 Room Air Conditioner Installation 2 Form the piping 1 Checking the drainage 1 Form the piping by wrapping the connecting por 1 To check the drainage tion of the indoor unit with insulation material and secure it with two kinds of vinyl tapes If you want to connect an additional drain hose the end of the drain outlet should be routed above the ground Secure the drain hose appropriately E Pour a glass of water on the evaporator E Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the 2 In cases where the outdoor unit is installed below drain exit the indoor unit perform the following E Tape the piping drain hose and connecting cable from down to up Secure the tapped piping along the exterior wall using saddle or equivalent Seal small openings around pipings with gt gum type sealer 2 Trap is required to prevent water from entering into electrical parts 2 Drain piping 3 In cases where the Outdoor unit is installed above the Indoor unit perform the following E The drain hose should point downward for e
61. ry Fan Sleep Timer Indicator IX Sleep Mode Timer Indicator G Timer Mode m Self diagnosis Function Error Code Error Display LED Indoor body operation LED Error contents SVC check point once Indoor room temperature thermistor open short 3sec 3sec gt 3sec Indoor pipe temperature thermistor open short Indoor Thermistor assembly check Service Manual 23 E Introduction A This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that may cause harm to the A air conditioner This symbol indicates special notes Features B NEO Plasma Filter Air Inlet Front Panel E Air Filter S LH Signal Receptor Air Discharge Air Intake Vents Power Cord Piping Ut Connecting Wires Air Outlet Vents Drain Hose Base Plate 24 Room Air Conditioner Installation E Installation Read carefully and then follow step by step Type A screw and plastic anchor P o i Type B screw Remote control holder f Figure Screw driver N Ohmmeter Electric drill Hexagonal wrench Measuring tape Knife Hole core drill 2 Gas leak detector Thermometer Spanner Horizontal m
62. s Side Hexagonal wrench 4mm Flare nut Open position Closed position To piping connection To outdoor unit Valve cap Flare nut piping connection Open position Closed position Service Service port cap port To outdoor unit Works Shaft position Shaft position Service port Shippin Closed Closed Closed pping with valve cap with valve cap with cap Air purging Open Closed Open 1 Installation counter clockwise clockwise push pin or with vacumm pump Operation _ Open _ Open Closed with valve cap with valve cap with cap Pumping down Closed Open Open 2 Transfering clockwise counter clockwise connected manifold gauge Evacuation Open Open Open Servicing with charging cylinder Gas charging Open Open Open 4 Servicing with charging cylinder Pressure check Open 9 Servicing Open Open with charging cylinder Gas releasing Open 6 Servicing Open Open with charging cylinder 46 Room Air Conditioner 1 Air purging Required tools hexagonal wrench adjustable wrench torque wrenches wrench to hold the joints and gas leak detec tor The additional gas for air purging has been charged in the outdoor unit However if the flare connections have not be done correctly and there gas leaks a gas cylinder and the charge set will be needed 2 way 3 way Valve The air in the indoor unit
63. se fone D AYME asaf Zt ENV AMMA NO VI NSI AVMb AY Tus a oa 91 Pm 059 969 2H1 NO Es sr NE l 120 E jog 4 15 10 MM 3914 _ 62 TOI PH si L4 I 2 c9 tree 99 204 1904 26031 saf ei gt WE eje 100 ISON E 268 Hitoy uoo ole ic zal zi 4 VIR HZOY 3 Taar INDOLE 70d 108 Z Tor C cann S 20 sa vogznin 4 CLINI Ee 504 10 8 6 So eaf 4 edor Zla 904 di QDUA iol 6 zo id 404 ele Stor NOlldO A31 NO sont a Phi 3 515 Ime Paar oar n 8 us lt 269 is 9 WOT Zid whaa 1WO9 NO Lm axe 85 5 De I 1 lt id Ld A31 x9 63 eor ae eec ial 163 02 vld e ZAIT xs rs jovi E 94 1 19 RU B9 x s 2d 4 tu tex 45 30 gt gt TO 94d 8 6 AS 20 A33 1531 T 1001 E EN SL 20 WOOT Bsr 55 68 Room Air Conditioner Exploded View and Replacement Parts List n Exploded View and Replacement Parts List Cr
64. shock Take care to ensure that nobody could step on or fall onto the outdoor unit There could result in personal injury and product damage Install the drain hose to ensure that water is drained away prop erly A bad connection may cause water leakage Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in There are sharp and moving parts that could cause personal injury Safety Precautions When the product is not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended opera tion Installation Always check for gas refriger ant leakage after installation or repair of product Low refrigerant levels may cause product failure the product To avoid vibration or water leak age Do not install the product where the noise or hot air from the out door unit could damage the neighborhoods It may cause a problem for your neighbors Service Manual 7 Safety Precautions Use two or more people to lift and transport the air conditioner Avoid personal injury Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigeration system There is risk of damage or loss of property Do not touch the metal par
65. temp automatically to 30 E Forced Operation Operation procedures when the remote control can t be used The operation will be started if the power button is pressed f you want to stop operation re press the button Heat pump Model Cooling Model Room Temp gt 24 C 21 C lt Room Temp lt 24 Room Temp lt 21 C Operating mode Cooling Cooling Healthy Dehumidification Heating Indoor FAN Speed High High High High Setting Temperature 22 C 22 C 23 C 24 C While in forced operation the key input by the remote control has no effect and the buzzer sounds 10 times to indicate the forced operation B Test operation During the TEST OPERATION the unit operates in cooling mode at high speed fan regardless of room tem perature and resets in 18 1 minutes During test operation if remote controller signal is received the unit operates as remote controller sets If you want to use this operation open the front panel upward and Press the power button let it be pressed for about 3 seconds f you want to stop the operation re press the button B Auto restart n case the power comes on again after a power failure Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions E Remote Control Operation Mode When the remote control is selected by the slide switch on the main unit the appliance operates according
66. tern damage Varistor ZNRO1J lE Check each load Indoor Outdoor Fan Motor Com pressor Stepping Motor and contacting condition of related connector including connecting cable of Indoor Outdoor Unit lE Check the connection housing for contacting Connector related to CN POWER Connector related to CN FAN Connector contacting of Outdoor Fan Compressor Display PWB Ass y Check Connector related to CN DC DC LE PCB Board Operation Check Items Content Remedy Power Transformer Outdoor unit Input Voltage About AC 208V AC 230V 10 Replace SMPS Mod Output Voltage Check the power voltage ule 4 About DC15V 3 e 1C01D 7812 Output Indoor Outdoor unit e DC 12V lt e 1C02D 7805 Output Indoor unit IC04D 7805 Output Outdoor unit DC e 1 7036 Reset IC OSC01B 4MHz Indoor Outdoor unit Voltage of Outdoor unit Micom No 18 Voltage of Indoor unit Micom No 43 and soldering condition Replace IC01D Replace ICO2D Indoor unit IC04D Outdoor unit Replace faulty parts Service Manual 55 Cycle Troubleshooting Guide 3 The product is not operate with the remote controller Turn on Main Power es While the compressor has been stopped the compressor does not operate owing to the delaying function for 3 minutes after stopped UL When the compressor stopped
67. the set time is reached after the time is input by the remote control the appliance stops operating The timer LED is on when the off timer is input It is off when the time set by the timer is reached f the appliance is on pause at the time set by the timer the pause continues E Off Timer lt gt On Timer Operation When the set time is reached after the on off time is input by the remote control the on off timer operation is carried out according to the set time Sleep Timer Operation When the sleep time is reached after 1 2 3 4 5 6 7 0 cancel hr is input by the remote control while in appli ance operation the operation of the appliance stops While the appliance is on pause the sleep timer mode cannot be input While in cooling mode operation 30 min later since the start of the sleep timer the setting temperature increases by 1 C After another 30 min elapse it increases by 1 C again When the sleep timer mode is input while in cooling cycle mode the airflow speed of the indoor fan is set to the low When the sleep timer mode is input while in heating cycle mode the airflow speed of the indoor fan is set to the medium E Chaos Swing Mode By the Chaos Swing key input the louvers vane automatically operate with the Chaos Swing or they are fixed to the desired direction While in Chaos Swing mode the angles of cooling and heating cycle operations are different Cooling Mode gt Hea
68. ting Mode gt CLOSED Jet Cool Mode Operation C O Model If the Jet Cool key is input at any operation mode while in appliance operation the Jet Cool mode operates n the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority During the JET COOL function at any moment the A C starts to blow the cool air with side louvers closed at extremely high speed for 30 minutes setting the room temp automatically to 18 C Service Manual 21 Operation Details E Jet Cool Mode Operation H P Model While in heating mode or Fuzzy operation the Jet Cool key cannot be input When it is input while in the other mode operation cooling dehumidification ventilation the Jet Cool mode is operated In the Jet Cool mode the indoor fan is operated at super high speed for 60 min at cooling mode operation In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority During the JET HEAT function at any moment the A C starts to blow the hot air with side louvers closed at extremely high speed for 60 minutes setting the room
69. ts of the product when removing the air filter They are very sharp There is risk of personal injury 8 Hoom Air Conditioner E Operation Do not install the product where Do not direct airflow at room it will be exposed to sea wind occupants salt spray directly It may cause corrosion in the This could damage your health product Corrosion particularly on the condenser and evaporator fins could cause product mal function or inefficient operation Do not block the inlet or outlet Use a soft cloth to clean of air flow Do not use harsh detergents solvents etc t may cause product failure There is risk of fire electric shock or damage to the plastic parts of the product Do not step on or put anything Always insert the filter securely on the product outdoor unit Clean the filter every two weeks or more often if necessary There is risk of personal injury A dirty filter reduces the efficien and failure of product of the air conditioner and Do not drink the water drained from the unit conditioner It is not sanitary and could cause serious health issues injury B Disuse Use a firm stool or ladder when cleaning or maintaining the air Be careful and avoid personal Safety Precautions Replace all the batteries in the remote There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries i
70. unit malfunction A fire hazard may also exist Therefore be sure all wiring is tightly connected When connecting each power wire to the corresponding terminal follow instructions How to connect wiring to the terminals and fasten the wire tightly with the fixing screw of the terminal plate How to connect wiring to the terminals W For solid core wiring or F cable 1 Cut the wire end with a wire cutter of wire cutting pliers then strip the insulation to expose the solid wire about 25mm 15 16 2 Using a screwdriver remove the terminal screw s on the terminal plate 3 Using pliers bend the solid wire to from a loop suitable for the terminal screw 4 Shape the loop wire properly place it on the terminal plater and tighten securely with the terminal screw using a screwdriver W For strand wiring 1 Cut the wire end with a wire cutter or wire cutting pliers then strip the insulation to expose the strand wiring about 10mm 3 8 2 Using a screwdriver remove the terminal screw s on the terminal plate 3 Using a round terminal fastener or pliers securely clamp each stripped wire end with a round terminal 4 Position the round terminal wire and replace and tighten the terminal screw using a screwdriver Installation Terminal block Clamp cord 5 ele e e G Cap Reuse p Reuse id Lock nut Hole Cap for low voltage line Remove Taping for sealin 9
71. ween 6 69 49 and 48 of MICOM Between 1 2 8 4 and 5 of CN U D CN L R If there are no problems after above checks Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver Service Manual 59 Cycle Troubleshooting Guide 7 When a comunication error occurs The operation indicator of Indoor unit blinks five times The red indicator of Outdoor unit blinks five times d Check the connecting wires between Indoor and Outdoor unit for the connecting error and the contacting condition d Check the installation condition of outdoor unit d Check for the communication error and the operating condition of product after also operating with the remote controller then taking above 2 minutes 3 Apply the power again after about 20 seconds by the power of Outdoor unit is off d Check for the communication error and the operating condition of product after also operating with the remote controller then taking above 2 minutes d Check the PWB assembly of Indoor and Outdoor unit Caution If the connecting wires of Indoor and Outdoor unit are not connected within 2 minutes after the power of Outdoor unit is applied a communication error will occur Therefore the power should be applied after connecting them 60 Room Air Conditioner Cycl
72. wing instructions must be followed E Incorrect operation due to ignoring instruction will cause harm or damage The seriousness is Classified by the following indications AWARNING This symbol indicates the possibility of death or serious injury ACAUTION This symbol indicates the possibility of injury or damage to properties only E Meanings of symbols used in this manual are as shown below Be sure not do o Be sure to follow the instruction A WARNING B installation w l z Do not use damaged power For electrical work contact the Always use the power plug and cords plugs or a loose socket dealer seller a qualified electri socket with the ground terminal cian or an Authorized Service Center There is risk of fire or electric There is risk of fire or electric There is risk of electric shock shock shock Install the panel and the cover of Do not modify or extend the Do not install remove or re control box securely power cord install the unit by yourself cus tomer There is risk of fire or electric There is risk of fire or electric There is risk of fire electric shock shock shock explosion or injury 4 Hoom Air Conditioner Be cautious when unpacking and installing the product Shape edges could cause injury Be especially careful of the sharp edges Be sure the installation area does not deteriorate with age If the base co
73. witched to low Cooling med Heating speed The unit will be stopped after 1 2 3 4 5 6 7 hours Defrost Deice control Heating Both the indoor and outdoor fan stops dur The fan is switched to intermittent or irregular operation ing defrosting The fan speed is automatically switched from high to low speed Natural Air Control by CHAOS Logic Hot start Control Heating Airflow Direction Control The indoor fan stops until the The louver can be set at the desired position or swing evaporator pipe temperature will be reached up and down automatically at 28 C 10 Room Air Conditioner Functions Operation ON OFF Operation Mode Selection A 4 Cooling Operation Mode Auto Operation Mode A Cooling Heating model only model only Healthy Dehumidification Operation Mode 6 Heating Operation Mode m 3 9 3 o 0 Fan Speed Selection High Eo nili oos PLA Room Temperature Checking Low 11 C lt gt High 39 C Temperature Setting TUE e qe Cooling Down to 18 C Heating Down to 16 C gt Up to 30 C Up to 30 C JET COOL Setting the Time or Timer i 0 0 O Timer Selection OFF ON OFF ON 0 0 ON OFF Timer Setting m Timer Cancel OCANCEL Cancel

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