Lg Floor Ceiling Air Conditioning Service Manual
Contents
1. NO UD CV H186BLBO CV H246BLBO Ge 349480 ORIFICE 4948AP2527A 4948AP2527A 435311 GRILLE DISCHARGE 3530A20007B 3530A20007B 435512 COVER ASSY TOP OUTDOOR 3H03266K 3H03266K 437210 PANEL ASSY FRONT 3721A20005Q 3721A20005Q 437212 PANEL ASSY REAR 3720AP0003D 3720AP0003D 546810 MOTOR ASSY OUTDOOR 4681A20013T 4681A20013X 552111 TUBE ASSY CAPILLARY 5211A10039T 5211A30331R 552202 VALVE REVERSING 3A02027A 3A02027A 552203 1 VALVE SERVICE 2H01890D 2A00392E 552203 2 VALVE SERVICE 2H02479F 2H02479F 554031 CONDENSER ASSY BENT 5403A20022F 5403A20022F 554160 COMPRESSOR SET 2520UWFP2AA 2520UWJP2BA 559010 FAN ASSY PROPELLER 1A00195B 1A00195B 561410 COIL ASSY REVERSING VALVE 3A02028Y 3A02028Y 649950 CONTROL BOX ASSY OUTDOOR 4995A20027M 4995A20027N W0CZZ 1 CAPACITOR DRAWING 3A00988B 6120AR2094T W0CZZ 2 CAPACITOR DRAWING 2A00986D 2A00986D 55 June 2003 P No 3828A20059X Printed in Korea2. GRAPH of Natural wind by the CHAOS logis During Heating operation 14 7 Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following For Heating Model Indoor piping temp 28 26 Intake Air temp Setting temp 3 0 Compressor OFF Setting temp Compressor ON 30sec minimum minimum minimum minimum I lt gt lt gt Imin 3min Smin imin COMPRESSOR ON OFF ON OFF ON OUTDOOR FAN ON OFF ON OFF ON Fan Low Selected out Selected F Low F FanS Low Selected INDOOR FAN Stops Fan Fan ow Fan elected Fan ow Fan an Stop Fan Fan 4 WAY VALVE ON 8 Hot Start Control The indoor fan stops until the evaporator piping temperature will be reached to 28 During heating operation if piping temperatures falls below 26 C fan stops The operation diagram is as following PIPING 1 TEMPERATURE 28 C N N 26 C INDOOR FAN LILILIL 2222 dudi COMPRESSOR ON Selected Fan Low Fan Fan Stop 15 9 Deice Control Deicing operation is controlled by timer and sensing the outdoor piping temperature first deicing starts only when the outdoor pipe temperature falls below 6 C after 30 minutes passed from starting of heating operation Deic
3. 10min Within 7min _ lt Cooling 2min 58sec 6 gt COMPRESSOR ON OFF ON OFF ON OFF OUTDOOR FAN ON OFF ON OFF ON OFF INDOOR FAN Selected Fan 16 Selected Fan 11 Forced operation H you lose wireless remote controller you can operate the unit with forced operation switch The standard conditions are as following Heat pump Model Room 24 21 Room 24 Room Temp 21 Operation Mode Cooling Soft Dry Heating FAN Speed High Soft Dry Rule High Setting Temp 22 Air Intake Temperature 24 Unit operates in low fan mode for first 15 seconds then switched to proper operation mode according to intake Air temperature Forced Operation Button Press the Forced Operation Button 4 Press the Forced Operation Button once again to stop operation 12 Protection of the evaporator pipe from frosting If the temperature of the indoor coil is below 2 C after 7 minutes from starting the compressor the compressor and the outdoor fan is stopped and then after 3 minute delay of the compressor and the temperature of the indoor coil is over 7 C the compressor and the outdoor fan is reoperated Indoor fan operates at low speed comp OFF or at selected speed comp ON 13 Inlet grille open O
4. When Auto Operation initial start Over 26 25 C Over 24 C below 26 Intake air 1 C Over 22 C below 24 Intake air 0 5 C Over 20 C below 22 intake air temperture Controlled In this mode when pressing the verti cal air diretion con trol Button louvers below 20 20 by Fuzzy logic moves to 1 f When pressing room temp Over 20 C below 30 Fuzzy control rhythm refer to erature setting button below 20 20 17 during Auto Operation over 30 30 Intake Air temp Setting Temp 0 5 C Compressor OFF Setting Temp 0 5 C Compressor ON Indoor Fan Fuzzy Speed Compressor ON OFF ON OFF 12 Auto Operation for Soft Dry The Setting temperature will be same as that of the current intake air temperature Compressor ON temperature Setting temperature 1 C Compressor OFF temperature Setting temperature 0 5 C Auto Operation for Heating Heating model only Intake Air temp below 20 over 20 below 21 Setting temp 20 Intake air temp 0 5 Compressor ON temperature Setting temperature Compressor OFF temperature Setting temperature 3 C Setting temp 21 5 20 5 202 202 21 Intake Air temp 1 f rhythm louver operation In Auto operation mode when pressing the vertical air direction contro
5. Room ir Conditioner Convertible Type MODEL CV H186BLB0 CV H246BLB0 Applied to new Refrigerant R 407C Contents Ett 3 Product Specifications Cooling amp 4 2121 5 DIMENSIONS C ooo ura b Apc INN ME nd Sur d 6 Refrigeration Cycle Diagram 8 Wiring BAUE LL EE 9 Operation pietate sind ics Dn LAN S nu AU 10 Display Function d M 18 Self diagnosis Function etende de o hath e ixi 18 Installation uy ETE RE 19 ooo uote en MTM M E C E AN 36 Disassembly of the parts Indoor Unit nen 38 Cycle eege eebe ege 42 Cycle Troubleshooting Guide AAA 45 Electronic Parts Troubleshooting 46 Electronic control device sm a oren 50 Schematic Diagram EE 51 Exploded View and Replacement Parts 15 52 2 Functions Indoor Unit 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 seconds at the starting Time Delay Saf
6. indoor fan speed and desired evaporator piping temperature operation made are automatically set by fuzzy rule will be reached at 28 4 Remote Controller Operation ON OFF Operation Mode Selection O Cooling Operation Mode Auto Operation Mode A modelo model Ona Soft Dry Operation Mode Heating Operation Mode xx Fan Speed Selection m get pe Room Temperature Display High s CHAOS a Hi of Y o O High 39 C LOW 11 G Temperature Setting TEMPERATURE LOW HGH r Down to 18 C Down to 16 i A Y Cooling Up to 30 Heating Up to 30 Setting the Time or Timer v 3 4 0 0 Timer Selection NODE OFF ON OFF ON 0 0 Timer Setting SET Timer Cancel CANCEL CO Cancel Sleep Mode Timer ON or Timer OFF f Sleep Operation 1 2 3 4 5 6 7hr Off Timer Airflow Direction Control N Fan Operation Mode CD Fan Operates without cooling RESET 4 Product Specifications Item Model Name Unit CV H186BLBO CV H246BLBO Cooling Capacity Btu h kcal h 19 000 4 788 23 300 6 048 Heating Capacity Btu h kcal h 19 000 4 788 23 300 6 048 Moisture Removal 4 In 2 5 3 5 Power Source V Hz 3 220 240V 50Hz Air Circulation Outdoor Indoor m min 13 5 15 45 50 Input
7. F approved by HAR or SAA E NORMAL CROSS SECTIONAL AREA ce 8 8 Ze 2 5mm 24K f 2 0 18 i NORMAL CROSS SECTIONAL AREA 2 5mm2 24K 2 0mm 18K 31 The connecting cable connected between the indoor and outdoor unit should be complied with the following specifications Type HO7RN F approved by HAR or SAA E amp NORMAL CROSS SECTIONAL AREA 0 75mm 3 Connecting the cable to Outdoor Unit Outaoorunit 1 Remove the Cover control from the unit by loosening Terminal block a screw Connect the wires to the terminals on the control 2 2 board individually as following Holder for 2 Secure the cable onto the control board with the hold power supply w er clamper cord Er supply 3 Refix the cover control to the original position with the J Screw 4 Use a recongnized circuit breaker 20A 18K 24K between the power source and the unit A disconnec Cover contol Ge tion device to adequately disconnect all supply lines cable must be fitted CAUTION After the confirmation of the above conditions prepare the wiring as follows 1 Never fail to have an individual power specialized for the air conditioner As for the method of wiring be guided by the circuit diagram pasted on the inside of control box cover 2 Provide a circuit breaker switch between power source and the unit 3 The screw which fasten the wiring in the ca
8. connection Ensure that the color of the wires of outdoor unit and the terminal No are the same as those of indoor unit respectively Cooling only type Terminals on the indoor unit HL 2 3 4 POWER INPUT Terminals on the outdoor unit 3 4 GN YL Cooling amp Heating type Terminals on the indoor unit 100 amp N 2D 3 4 5 6 Qi POWER INPUT GN YL Terminals the outdoor unit 4 5 6 2 Clamping of cables 1 Arrange 2 power cables on the control panel SS JR 5 ER lt AIR GUIDE L gt 2 First fasten the steel clamp with a screw to the inner boss of control panel 3 For the cooling model fix the other side of the clamp with a screw strongly For the heat pump model put the 0 75mm2 cable thinner cable on the clamp and tighten it with a plastic clamp to the oth er boss of the control panel 4 In Australia the length of power supply cord measured from the entry of the power supply cord to the middle of live pin on the power plug should be over 1 8m CAUTION The power cord connected to the The power connecting cable indoor unit should be complied with connected between the indoor and the following specifications outdoor unit should be complied Type H05VV F Indoor with the following specifications approved by HAR or SAA Type HO7RN
9. into water and fix it on the wall to avoid swinging in the wind In case of the Outdoor unit being installed below position of the Indoor unit 2 Tape the Pipings drain hose and Connecting Cable from bottom to top 3 Form the pipings gathered by taping along the exterior wall and fix it onto the wall by saddle or equivalent In case of the Outdoor Unit being installed above position of the Indoor Unit 2 Tape the Pipings and Connecting cable from bottom to top 3 Form the pipings gathered by taping along the exterior wall and make the trap prevent water from entering into the room 4 Fix the pipings onto the wall by saddle or equivalent 33 Seal a small opening around the pipings with gum type sealer DD Ge 222 5 lt Drain hose P UC Pipings Connecting cable Trap is required to prevent water from entering into electrical parts Seal a small opening around the pipings with gum type sealer 6 Air Purging of the Pipes and Indoor Unit The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the compressor 1 Confirm that both the liquid side valve and the gas side valve are set to the closed position 2 After connecting the piping check the joints for gas leakage with gas leak detector 3 Remove the service port nut and connect the gauge manifold and the vacuum pump to the service port
10. service port must be closed this test is only for checking whether pipe connection is OK or not 42 5 If there is no leakage discharge in piping completely into tank for retrieving Completely discharge is needed for vacuuming If leakage is found please fasten the joint more tightly 6 After closing the valve of charging hose disconnect the tank and connect the vacuum pump to charging hose and open the valve again for vacuuming 7 Turn on the vacuum pump until the pressure drops below 0 kg cm 8 After vacuuming disconnect the vacuum pump and open the spindle of service port liquid side slightly for 30 sec and then open the spindle of service port gas side with hexagonal wrench 9 Open the liquid side completely first and then the gas side fully in order 2 Disconnection on moving GEN Gas side Outdoor unit Disconnection 1 Attach the charging hose manifold gage to the service port Connect the manifold gage once to the service port not stopping Stopping in the middle of process may cause the leakage 2 Purge the air in hose into special device such as retrieving tank opening the valve of charging hose gas side slightly and then close it tightly 9 Operate the air conditioner for 10 15 min until cycle is stabilized 4 Close the spindle of service port liquid side high pressure and wait till pressure of gas side l
11. 02D DC5V Is the PIN 29 of NO Micom DC5V NO Is the PIN 55 64 of Micom DC5V Exchange Micom 46 p Exchange IC02D gt Exchange IC01A Check the 5V P C B pattern Possible Trouble 2 The indoor fan does not operate Does the temperature set all right Is it DRY mode Adjust set temperature Is it the HOT mode Does the temperature set all right Adjust set temperature NO YES Is 02 operated NO gt Exchange 02 normally YES Is the each S S R any problem Exchange S S R NO Check the fan motor and connector CN FAN 47 Possible Trouble 3 Up Down Air direction louver does not operate NG Exchange ICO1M Is ICO1M operated normally Is the PIN 1 of CN UP DOWN DC12V Check the main P C B DC12V pattern Check the step motor and connector CN UP DOWN 1 2 Possible Trouble 4 Remote controller does not operate YE S Exchange the battery Is the battery consumed Is the PIN 8 of CN DISP NO Check the main P C B DC5V DC5V pattern Is the connection of CN DISP all right NO Connect CN DISP exactly Exchange receiver ass y 48 Possible Trouble 5 Ineffective Heating NO Is 4way valve operated Is IC02M operated NO Check RY 4WAY normally Check the RY 4WA
12. 1AP7334C 166000 SWITCH PUSH 6600AP2059B 6600AP2059B 235450 DISPLAY ASSY MECH 3545AP7224A 3545AP7224A 237900 WINDOW DISPLAY 3790AP7080A 3790AP7080A 261704 TRANSFORMER POWER 6171AQ3198E 6171AQ3198E 263230 THERMISTOR ASSY 6323AQ2333Y 6323AQ2333Y 267110 REMOTE CONTROLLER ASSY 6711A20010K 6711A20010K 268712 PWB PCB ASSY DISPLAY 6871AQ3263A 6871AQ3263A 330870 DRAIN PAN ASSY 3087AP7233A 3087AP7233A 342800 BEARING 3H02821B 3H02821B 346811 MOTOR ASSY INDOOR 4681AP2306G 4681AP2306E 352115 TUBE ASSY EVA IN 5211AP2810J 5211AP2810J 35211A TUBE ASSY SUCTION INDOOR 5211AP2813B 5211AP2813A 352150 HOSE ASSY DRAIN 5251AP2460B 5251AP2460B 354211 EVAPORATOR ASSY 5421AP2812A 5421AP2812A 359010 FAN ASSY CROSS FLOW 5901AR2351E 5901AR2351E W0CZZ CAPACITOR 3H00671A 3H00671A 738280 MANUAL OWNERS 3828A20147D 3828A20147D 738281 MANUAL SERVICE 3828A20059X 3828A20059X 53 2 Outdoor Unit 654030 54 Parts List Heat Pump Models LOCATION
13. ATION BUTTON Used to circulate the room air without cooling or heat ing turns indoor fan on off ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature RESET BUTTON Used prior to resetting time or after replacing batteries 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 Remove the air filter Pull the inlet grille slightly toward you Pull out the air filter 2 pieces 2 Remove the girlle from chassis Remove the screws securing the side plate and push to the bottom side Unhook the hanger from the hanger screw at the left and the right side Pick out the inlet grille 3 Remove the lower air guide e Remove a screw of both side fixing barrier air guide Remove the screws of both sides of the lower air guide Remove the lower air guide toward arrow mark by turning upwards as shown in figure 38 4 Remove air guide upper crossflow fan and motor Remove the screws of both sides and center securing the upper air guide Remove 2 screws fastening the bracket of door switch Remove a bearing assembly by removing a screw and the bearing cover Remove 4 screws securing the motor cover Loosen the screw securing the crossflow fan to the fan motor shaft do not remove Remove the crossflow fan by sliding it out from the sh
14. Heating Cooling W 2 050 2 600 2 000 2 550 Running Current Heating Cooling A 9 0 11 8 8 8 11 6 E E R Cooling Btu n W 8 96 C O P Heating w w 2 76 Dimensions Indoor WxHxD Outdoor mm 1 200 x 205 615 870 x 655 320 Net Weight indoor Outdoor kg 30 59 Refrigerant R 410A g Airflow Direction Control Up amp Down O Remocon Type L C D Wiress Service Valve amp Connecting Tube Liquid 1 4 6 35 Gas 1 2 12 7 5 8 15 88 Sleeping Operation O Drain Hose O Connecting Wire 0 75mm Main Power Cable Time Delay Safety Function O Air Circulation O Soft Dry O Fan Speed Indoor 3 Hi Med Low Timer 24Hrs Self Diagnosis O Auto Restart 5 O Dimensions 1 Indoor Unit Installation Plate Rear Side 2 Outdoor Unit w B 9 al 5 Y af nl Gas side 5 3 way valve Liquid side 3 way valve L9 MODEL CV H186BLBO DIM CV H246BLBO W mm 870 H mm 655 D mm 320 L1 mm 370 L2 mm 25 L3 mm 340 L4 mm 630 L5 mm 25 L6 mm 546 L7 mm 162 L8 mm 162 L9 mm 54 L10 mm 74 5
15. Indicator Coolling Soft Dry Fan Heating Coolling Soft Dry Fan Heating Timer Indicator Timer Indicator Timer Mode Timer Mode Sleep Timer Indicator IX Sleep Timer Indicator SY Sleep Mode Sleep Mode Deice Indicator Outdoor Unit Operation Hot start Deice Outdoor Unit Operating Note For normal operation after checking by test mode you should press SW1 nine times for resetting or reconnect the power cord Self diagnosis Function 1 Protection of the evaporator pipe from frosting If the temperature of the indoor pipe is below 2 C after 7 mins from starting the compressor the compressor and the outdoor fan is stopped and then after 3 mins delay of the compressor and the temperature of the indoor pipe is over 7 C the compressor and the outdoor fan is reoperated 2 Thermistor Cut Off or Short Cut Off Short Blinks and off the operation mode LED 0 5 sec sec OFF 18 Installation 1 Installation of Indoor Outdoor Unit 1 Selection of the best location 1 Indoor unit There should not be any heat source or steam near the unit There should not be any obstacles to prevent the air circulation A place where air circulation in the room will be good A place where drainage can be easily obtained A place where noise prevention is taken into consider ation Do not install the unit near the door way Ensure the spaces ind
16. L11 mm 79 7 Refrigeration Cycle Diagram e CV H186BLB0 e CV H246BLB0 INDOOR UNIT OUTDOOR UNIT LIQUID SIDE a CAPILLARY TUBE VD Ss Y EXCHANGER EXCHANGER 1 GAS SIDE h d 423 KEE L T REVERSING VALVE gt lt COMPRESSOR COOLING HEATING Pipe size Diameter o Piping length m Elevation m MODEL Gas Liquid Rated Max Rated Max CV H186BLBO 1 2 1 4 7 5 15 5 8 CV H246BLBO 5 8 1 4 7 5 20 5 8 For installation over rated distance 30g of refrigerant should be added for each meter ex If 18K or 24K Model is installed at a distance of 15m 300g of refrigerant should be added 15 7 5 x 30g 225g 8 Wiring Diagram 1 Indoor Unit CV H186BLB0 CV H246BLB0 2 Outdoor Unit CV H186BLB0 CV H246BLB0 TRANS Gar THERMISTOR FORMER Zi CAPACITOR Wa BR CN TRANS SEES Kl CN TH CN FAN X oR AVL MAIN PCB 5 ASSY MOTOR BL RYM 2 BK RYH DOOR S W 1 2 GN YL Ewe d N 5 Gf STEP q 9 2 91 MOTOR FUSE 5 9j T3 15A ppm 9 av COM TEA
17. LCN 4WAY 2 8 RY 4WAY on on CN DISP rlveinm 1 oooooo a S 6 2 ORNO 41516 zT TERMINAL 5900009 BLOCK DISPLAY PC pop oF hr E ASSY MEM Di INPUT TO OUTDOOR UNIT WIRING DIAGRAM 3854A20125G OUTDOOR WIRING DIAGRAM BL CAPACITOR WH REVERSING VALVE CAPACITOR BK gt FAN OR OR MOTOR FUSE T3 15A i 1 DP NO NCNO NC TNS O TERMINAL BLOCK U 4 6 7 3854A20128P Operation Details 1 The function of main control 1 Time Delay Safety Control e 3min The compressor is ceased for 3minutes to balance the pressure in the refrigeration cycle Protection of compressor e Vertical air flow direction control louvers open in 5 seconds to prevent noise between louvers and wind 30sec The 4 way valve is ceased for 30sec to prevent the refrigerant gas abnormal noise when the Heating operation is OFF or switched to the other operation mode while compress is off While compressor is running it takes 3 5 seconds to switch 2 Airflow Direction Control This function is to swing the louver up and down automatically and to set it at the desired
18. Minimum thickness of the insulation for the connecting pipe shall be 7 3 If the Installation Plates are fixed to horizontal line the indoor unit after installing will be declined The unit must be horizontal or declined to the drain hose connected when finished installation Ceiling Drain hose to the bottomside Ceiling The unit must be declined to the bottomside of the unit when finished installation Ceiling 22 Secure the unit to the Installation Plates with four M8 bolts and washers Before working refer to Connecting pipe and cable to Indoor Unit on page 28 31 Hook up the Inlet Grille Hook to the cabinet Hang the Inlet Hanger to the screw Fitthe projection hooks of the side plates to the Side and the Front Panel by lifting it Fasten the screws 23 2 Installation on the Wall Select and mark the position for fixing bolts and piping hole Decide the position for fixing bolts slightly tilted to the drain direction after considering the direction of drain hose Drill the hole for anchor nut on the wall Drill the piping hole on the wall slightly tilted to the out door side using a 270 hole core drill Secure the Install Plate onto the wall with four anchor bolts washers and spring washers x Before secure the Install Plates select the bent direc tion of the Instal
19. Y and 4way valve gt Exchange IC02M Possible Trouble 6 The unit does not operate by forced operation switch Is the F OP key any problem Check P C B pattern check 49 Exchange key Electronic control device 1 MAIN P C B ASM CV H186BLB0 CV H246BLB0 BOTTOM CEILING Fixer JE UU Ou AN E 55 A Y 23262 g SS PWB 6870A90016A X 8 ASS Y 6871A2004L 2 DISPLAY P C B ASM P No 6871AQ3263A 6870 03075 F OP S W ASM 6871AQ3263 J 9 e LED LED2 LED3 LED4 1 CN DISP 8 R RECEIVER GND 50 Schematic Diagram YOLON 4315 r NMOG aN 51 Exploded View and Replacement Parts List 1 Indoor Unit 52 Parts List Heat Pump Models PART No LOCATION DESCRIPTION REMARK NO CV H186BLB0 CV H246BLB0 130911 CABINET ASSY 3091AP2533A 3091AP2533A 135314 GRILLE ASSY INLET SUB 5237A10002K 5237A10002K 137213 PANEL ASSY SIDE 3720AP2767P 3720AP2767P 137213 PWB PCB ASSY MAIN 6871A20042H 6871A20042H 146811 MOTOR ASSY STEP 4681AR2727G 4681AR2727G 152302 FILTER MECH A C 5230AP7093A 5230AP7093A 159911 VANE ASSY HORIZONTAL 5991AP2867B 5991AP2867B 159911 VANE ASSY 5991AP7334C 599
20. aft of fan motor 5 Remove the control box Assembly Disconnect the step motor connector fan motor connector display PCB connector thermistor connector and door switch connector from the main PCB H necessary disconnect power supply cord and connecting cable from the terminal block and remove the cord clamp screw Remove 2 screws securing the control box and pick out the control box carefully 39 6 Remove the front panel Remove the screws of both sides fixing the front Diffuser frame panel Push the upper side of front panel strongly to pull out the front panel from the inner hook of diffuser frame Pull down the front panel carefully not so as to harm the display PCB wires and thermistor wires 7 Remove the diffuser assembly Remove the screws of both side of diffuser assembly 4 pieces Push the upper side of cabinet strongly to pull out the inner hook of diffuser frame from the cabinet hole Take up the diffuser frame carefully not so as to harm the display PCB wires and the step motor wires 8 Remove display PCB assembly Remove the screws at the both side of display cover e If necessary disconnect the display connector from PCB assembly Remove 2 screws of PCB assembly Display Cover 40 9 Remove the vane upper vane lower and step motor Remove 2 screws securing the step motor xw e Molar assembly and pull it out from the
21. both left and right side From the left wall more than 760mm bracket Indoor From the right wall more than 840mm Outdoor 26 Floor mount bracket Install plate Piping hole 2 Piping and Drainage of Indoor Unit 2 1 Preparation of Piping Pipe cutter 1 Cut the pipes and the cable Use the accessory piping kit or the pipes pur chased locally Measure the distance between the indoor and the outdoor unit Cut the pipes a little longer than measured dis tance Cut the cable 1 5m longer than the length of the pipe 2 Remove burrs Remove burrs from cut edges of pipes Turn the pipe end toward down to avoid the metal powder entering the pipe Reamer Point down Caution If burrs are not removed they may cause a gas leak age 3 Flaring the pipes 215 88 mm 5 8 Q 1 0 mm Insert the flare nuts mounted on the connection 912 7 mm 1 2 0 0 5 mm ports of both indoor and outdoor unit onto the 09 52 mm 3 8 0 0 5 mm copper pipes When the flare nuts are removed 26 35 mm 1 4 0 0 5 mm from the indoor unit Some gas may leak as some gas is charged to prevent the inside of the pipe from rusting Fit the copper pipe end into the Bar of flare tool about 0 1 0mm higher See illustration Flare the pipe ends Carry out flaring work using dedicated flaring tool for R 410A Improper flari
22. by the charge hose 4 Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below 76cmHg 5 Remove the valve stem nuts and fully open the stems of the 2 way and 3 way valves with a hexagon wrench 6 Tighten the valve stem nuts of the 2 way valve and 3 way valve 7 Disconnect the charge hose and fit the nut to the service port Tightening torque 1 8kg m Liquid side Closed 2 way valve 3 way valve Outdoor unit 3 way valve Vaccum pump 6 OPEN CLOSE 34 7 Test running 1 Connection of power supply 1 Connect the power supply cord to the inde pendent power supply Circuit breaker is required 2 Prepare the remote control Insert two batteries provided Remove the battery cover from the remote con troller Slide the cover according to the arrow direction Insert the two batteries Two R03 or AAA dry cell batteries or equiva lent Be sure that the and directions are cor rect Be sure that both batteries are new Re attach the cover Slide it back into position 3 Operate the unit for fifteen minutes or more 2 Evaluation of the performance 1 Measure the temperature of the intake and dis charge air 2 Ensure the difference between the intake temper ature and the discharge one is more than 8 C Cooling or reversely Heating 3 Selection of the slide switch acco
23. cting the Drain Hose The drain hose can be connected to not only the right side but also left side of the unit e If the drain hose is connected to the left side it should go through the cabinet bottom Hang the drain hose on the hose hanger and fix it to the hole of cabinet bottom with a screw Hose Hanger Drain Hose 28 2 3 Installation on the wall or floor 1 Connecting the pipes to the indoor unit 1 For the Right Rear Piping Remove the knock out at the back side of the cabinet After bending an end of the connecting tube align the center of the pipings and sufficiently tighten the flare nut with fingers Finally tighten the flare nut with torque wrench until the wrench clicks Connect the Drain Hose insulated to the drain outlet Tape the Drain Hose to the pipings to avoid coming off the drain outlet 2 For the Right Side Piping After bending an end of the connecting tube align the center of the pipings and sufficiently tighten the flare nut with fingers Finally tighten the flare nut with torque wrench until the wrench clicks Connect the Drain Hose insulated to the drain outlet Tape the Drain Hose to the pipings to avoid coming off the drain outlet 3 For the Right Bottom Piping Align the center of the pipings and sufficiently tighten the flare nut with fingers Finally tighten the flare nut with torque wrench until the wrench clicks Connect the Drain Hose insula
24. d time is obtained and to cancel the Timer operation AIR FLOW DIRECTION START STOP BUTTON Used to stop or start louver movement and set the desired up down airflow direction SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heat ing turns indoor fan on off ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature RESET BUTTON Used prior to resetting time or after replacing batteries 2 Heat Pump Model Remote Controller Signal transmitter Transmits the signals to the room air conditioner g SOEA Dt GE EIS c 7777 CB TIME 9 Q oe o 37 OPERATION DISPLAY Displays the operation conditions START STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again OPERATION MODE SELECTION BUTTON Used to select the operation mode 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 BUTTONS Used to set the timer when the desired time is obtained and to cancel the Timer operation AIR FLOW DIRECTION START STOP BUTTON Used to stop or start louver movement and set the desired up down airflow direction SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation AIR CIRCUL
25. eft and right side Detach the Inlet Grille from the Indoor Unit 1 Installation on the ceiling Measure and mark the position for the Suspen sion bolts and the piping hole Drill the hole for anchor nut on the ceiling x Before secure the Installation Plates select the bent direction of the Installion Plate to the inside or the outside according to the installation circumstances Drill the piping hole on the wall slightly tilted to the outdoor side using a 970 hole core drill 20 Side Plate Suspension poll Center line for the piping hole Indoor Outdoor i 5 7mm Insert the nuts and washer onto the suspension bolts for locking the suspension bolts on the ceiling Mount the suspension bolts to the anchor nuts firmly Secure the Installation plates onto the Suspension bolts adjust level roughly using nuts washers and spring washers Engage 2 hooks on the both left and right side of the unit to the lower slot of Installation Plates Adjust a level with a level gauge on the direction of left right back forth by adjusting suspension bolts Move the hooks on the unit to the upper slot of Installation Plates Then the unit will be declined to the bottomside so as to drain well 21 Anchor nut CAUTION 1 Install declination of the indoor unit is very important for the drain of the convertible type air conditioner 2
26. er and by 2 C 1 hour later The operation will be stopped after 1 2 3 4 5 6 7 hours Intake Air temp M 30 minutes E 30 minutes gt me SET TEMP 0 5 C COMP OFF SET TEMP 0 5 C More than More than 3 minutes 3 minutes INDOOR FAN Low Low Low Low Low COMPRESSOR ON OFF ON OFF ON Heating Mode with the Sleep Mode Heating model only The operation will be stopped after 1 2 3 4 5 6 7 hours Setting Temp 3 C Compressor OFF Setting Temp Compressor ON Indoor Fan Med Med Med Med Med Med Compressor ON OFF ON OFF ON OFF 11 5 Auto Operation The operation procedure is as following Cooling amp Heating Model Press Start Stop Button Select Auto Operation Mode Check the Room temperature Operation mode Indoor fan speed Setting temperature are automatically decided by Fuzzy rule Intake air below 21 Over below Over 24 temperature 21 24 Operation Mode Heating Soft Dry Cooling If initial mode is decided that mode is continued without the room temperature changing For cooling operation mode over 24 setting temperature and fan speed are same as cooling only model Auto Operation for Cooling Operation Condition Intake air Temperature Setting temperature Fan speed Air Direction Control
27. ety Control Restarting is inhibited for approx 3 minutes Indoor Fan Speed Control High Med Low Chaos Operation indication Lamps LED Lights up in operation Lights up in Sleep Mode Lights up in Timer Mode Lights up in Deice Mode or Hot Start Mode only Heating Model Lights up during compressor running only Cooling Model Eos gt Soft Dry Operation Mode Intermittent operation of fan at low speed Sleep Mode Auto Control The fan is switched to low Cooling med Heating speed 5 o 7 E o Mi 4 A o c o Natural Air Control by CHAOS Logic i i i i r Deice defrost control Heating speed Both the indoor and outdoor fan stops during deicing Hot start after deice ends e e SE en a 9 A Ze cs ga on Sg d B 5 5 5 O a 3 lt o 2 o re 3 o 3m s amp O g gt Airflow Direction Control 4 gt c Ka o 5 o D o Ki gt o o o o 5 up and down right and left not on all models automatically Hot start Control Heating Auto Operation The indoor fan stops until the The setting temperature
28. gher 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 Current is low Tn Defective 4 way reverse valve Naher Excessive amount of High pressure does not quickly Normal refrigerant 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 putty 45 Electronic Parts Troubleshooting Guide Possible Trouble 1 The unit does not operate Is the input voltage NO of transformer AC220V Is the output voltage of transformer about AC14V NO Is shorted the transformer output Check the FUSE and the wiring diagram Check the RY COMP PIN 3 and CN 4WAY PIN 1 Is the input voltage of ICO1D DC14V Is the output voltage NO of ICO1D DC12V Is the output voltage NO Check the main P C B pattern Exchange the transformer Exchange D01D D05D Exchange IC01D gt of IC
29. icated by arrows from the wall ceiling or other obstacles 2 Outdoor unit If an awning is built over the unit to prevent direct sun light or rain exposure be careful that heat radiation from the condenser is not restricted There should not be any animals or plants which could be affected by hot air discharged Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles 3 Piping length and the elevation Pipe Size Length A m Elevation B m Additional refrigerant MODEL GAS LIQUID Rated Max Rated Max g m 18K BTU 1 2 14 75 15 5 8 30 24K BTU 5 8 1 4 75 20 5 8 30 If 18K or 24K Model is installed at a distance of 15m 225g of refrigerant should be added esses 15 7 5 x 30g 19 than 20 e More than NEN Ceiling installation More than More than Indoor unit Outdoor unit 2 Indoor unit installation Before Installing prepare Installation Plates Installation Plates are attached at the bottom of indoor unit Detach them by removing each 3 screws at both sides Detach Side Plate R L by removing each 2 screws on both sides Pull the upper right and left side of Inlet Grille to the front and it will stop at slightly tilted position Unhook the Inlet hanger from the Hanger screw on the both l
30. ing ends after 5 minutes passed from starting of deice operation or when the outdoor pipe temperature rises over 12 C even if before 6 minutes second deicing starts only when the outdoor pipe temperture falls below 6 C after 30 minutes passed from ending of the first deicing Within 6 minutes Dj More than 30 minutes of heating operation Dj More than 30 minutes The outdoor of heating operation piping Temp Deicing Deicing 12 DEICE OFF 6 DEICE ON INDOOR FAN COMPRESSOR ON ON 4 WAY VALVE 10 Soft Dry Operation During Soft Dry Operation the compressor ON temperature is the setting temperature plus 1 C the compressor OFF temperature is the setting temperature minus 0 5 C When the room temperature rises over the compressor ON temperature the operation mode is switched to the cooling mode When the room temperature falls between the compressor ON temperature and OFF temperature the operation mode is switched to the Soft Dry Operation In this temperature range 10min Dry Operation 7min operation OFF During 10min Dry operation if the room temperature falls below compressor OFF temperature Compressor OFF In micom dehumidify mode control of fan speed is as following Intake Air temp Setting temp 1 0 Compressor ON Setting temp Setting temp 0 5 C Compressor OFF Cooling 2min 58sec
31. l Plate to the inside or outside accord ing to the installation circumstances 24 Outdoor Sprin washer Less than 12mm Install the Indoor unit onto Installation Plate Insert 2 hooks on the both left and right side of the unit to the inner slot wall side of the Installation Plate Secure the unit to the Installation Plate with four M8 bolts and washers Hook up the Inlet Grille Hook to the cabinet Hang the Inlet Hanger to the screw Fit the projection hooks of the side plates to the Side Panel and the Front Panel by lifting it Fasten the screws 25 Inner slot Before working refer to Connecting pipe and cable to Indoor Unit on page 29 31 3 Installation on the floor Installation of Mount Bracket Select and mark the position for Mount the piping hole Drill the hole for the anchor nut on the wall Drill the piping hole using a 270 hole core drill Secure the Mount Brackets on the wall with four M4 Screws Brackets and Install the indoor unit onto the Mount Brackets Engage the slot at the back of the unit with Mount Bracket Drill the piping hole with 70mm dia hole core drill Piping hole should be slightly slant to the outdoor side After Installing reassemble detached parts Hang the Inlet Grille and hook the Inlet Hanger to the Hanger Screw Assemble the Side Plates R L with 2 screws on
32. l button louver moves as following cycle MODEO MODE1 MODE2 MODE3 MODE4 MODE5 MODE6 MODE9 CLOSED 13 6 Natural wind by CHAOS logic For more fresh feeling than other fan speed mode press the indoor fan Speed Selector and set to CHAOS mode In this mode the wind blows like natural breeze by auto matically changing fan speed according to the CHAOS logic Intake Air temp Cooling on temp Setting temp 0 5 Setting temp Cooling off temp Setting temp 0 5 Setting CHAOS Natural wind v INDOOR FAN OUTDOOR FAN COMP Setting fan speed Xe 59999959 LOW OFF 2 CHAOS Natural wind GRAPH of Natural wind by the CHAOS logis During Cooling operation Intake Air temp Heating off temp Setting temp 3 0 Heating on temp Setting temp Setting CHAOS Natural wind Y INDOOR FAN LOW OR STOP OUTDOOR FAN COMP Setting fan speed CHAOS Natural wind Gei LOW ON lt OFF
33. nce the inlet grille is opened during operation of the unit the unit automatically stops operation and the lamps will be turned off But memorized functions are still available When the inlet grille is closed again the unit become waiting state for operation From then the unit can be operated by forced operation button or Start Stop button of remote controller 14 Test Operation When pressing forced operation switch about 3 seconds the unit operates in cooling mode at high speed fan regardless of room temperature and resets in 18 min During test operation if remote controller signal is received the unit operates as remote controller sets 15 Auto Restarting Operation When the power is restored after a sudden power failure while in appliance operation the mode before the power failure is kept on the memory and the appliance should be on the automatically operates in the mode on the memory Operation Mode that is kept on the memory State of Operation ON OFF Operation Mode Setting Temp Selected airflow Speed Sleep Timer Mode Remaining Time of Sleep Timer unit of hour If no input by the remote controller or no switching of the slide switch within 7 hr after the appliance operates by the Auto Restarting operation the appliance is forced to stop at the moment of 7 hr elapse 17 Display Function 1 Heating Model Operation Indicator Operation
34. ng 4 Tape the flaring portion to protect it from the gt dust or damages I 2 i Inclined Surface Cracked Uneven damaged thickness When properly flared the internal surface of the flare will evenly shine and be of even thickness After the flare part comes into contact with the connec tors carefully check the flare finish 27 2 2 Installation on the ceiling 1 Connecting the pipes to the indoor unit The pipe can be connected to right side bottom or back of the unit 1 For the Right Side Piping After bending an end of the connecting tube align the center of the pipings and sufficiently tighten the flare nut with fingers Finally tighten the flare nut with torque wrench until the wrench clicks Connect the Drain Hose insulated to the drain outlet Drain hose should be go through under the Hose Bracket as shown in figure Hang the drain hose on the hose hanger and fix it to the hole of the hose bracket with a screw DIN i gt 2 For the Bottom Side Piping Remove the knock out on the bottomside of Inlet Grille Align the center of the pipings and sufficiently tighten the flare nut with fingers Finally tighten the flare nut with torque wrench until the wrench clicks Connect the Drain Hose insulated to the drain outlet Hang the drain hose on the hose hanger and fix it to the hole of cabinet bottom with a screw 2 Conne
35. ow pressure drops below 0 kgf cm 5 After the needle of gage indicates below 0 kgf cm close the valve of gas side quickly and turn off the power 43 6 Disconnect the piping between indoor and outdoor unit and then put on service cap to the service port 3 Gas Charging After Evacuation Indoor unit Check valve Charging cylinder Outdoor unit e Procedure 1 Connect the charge hose to the charging cylinder Connect the charge hose which you dis connected from the vacuum pump to the valve at the bottom of the cylinder If you are using a gas cylinder also use a scale and reverse the cylinder so that the system can be charged in liquid state 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 refrigerant The procedure is the same if using a gas cylinder 9 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 specified amount of refrigerant it can be charged with a little at a time approximately 150g each time while operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure 44 This is different from previous procedures Because
36. position The procedure is as the following ist Press the ON OFF Button to operate the product 2nd Press the Airflow Direction Control Button to swing the louver up and down automatically 3nd Repress the Airflow Direction Control Button to set the louver as the desired position MODEO MODE1 MODE 2 MODE3 MODE4 MODE5 MODE6 CLOSE MODE 7 x For Heating Model Airflow direction control figure when installed on Airflow direction control figure when installed the floor under the ceiling OPEN MODE 1 MODE 2 12 MODE 3 Cooling MODE 4 MODE 5 Heating um MODE 6 MODE 7 MODE 8 MODE 9 CLOSE 10 3 Cooling Mode Operation When selecting the Cooling 36 Mode Operation the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air temp COMP ON SET 0 5 C COMP OFF SET TEMP 0 5 C More than More than 4 r 6 MH 3 minutes 3 minutes Selecting Selecting Selecting INDOOR FAN fan speed Low fan speed Low fan speed COMPRESSOR ON OFF ON OFF ON 4 Cooling or Heating Mode with Sleep Mode Auto Operation When selecting the Cooling JK or the Heating GO combined with the Sleep Mode Auto Operation the operation diagram is as following Cooling Mode with the Sleep Mode setting temperature will be raised by 1 C 30minutes lat
37. rding to installation method Heating model only 1 In case the indoor unit is installed on the floor please change the side switch which is on the Main PCB Assembly to the BOTTOM state 2 In case the indoor unit is installed under the ceil ing please change the slide switch which is on the Main PCB Assembly to the CEILING state x The initial state of the slide switch is set for 3s SES 4 the bottom installation SEA E du E N Z AE ut Hi 35 Operation 1 Name and Function Remote controller 1 Cooling Model Remote Controller Signal transmitter Transmits the signals to the room air conditioner as As OHH 20 ei TIME GB TIME CH Bw e 9 oe Oo 36 OPERATION DISPLAY Displays the operation conditions START STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again OPERATION MODE SELECTION BUTTON Used to select the operation mode 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 BUTTONS Used to set the timer when the desire
38. sing 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 give rise to burn out of the wires 4 Specification of power source 5 Confirm that electrical capacity is sufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the relation between cable length and thickness 8 Never fail to equip a leakage breaker where it is wet or moist 9 The following troubles would be caused by voltage drop down Vibration of a magnetic switch damage on the contact point there of fuse breaking disturbance to the normal function of a overload protection device Proper starting power is not given to the compressor 10 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 in each active phase conductors 32 4 Form the pipings 1 Wrap the connecting portion of indoor unit with the Insulation material and secure it with two Plastic Bands for the right pipings f you want to connect an additional drain hose the end of the drain outlet should keep distance from the ground Do not dip it
39. ted to the drain outlet 2 Connecting the Drain Hose The drain hose can be connected to not only right side but also left side of the unit 29 AG WCC lt S Drain Hose Connecting ii d N Piping 3 Connecting Pipes to the Outdoor Unit 1 Connecting the pipes to the Outdoor unit 1 Align the center of the pipings and sufficiently tighten the flare nut with fingers 2 Finally tighten the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Pipe Size Torque 1 4 1 8kg Liquid Side esd 3 8 4 2kg m Gas side piping Gas Side TE 9 9kgm Bigger Dia SI 6 6kg m D Liquid side piping GL ES Smaller Dia 1 Checking the Drainage 1 Remove the Air Filter To remove air filter take hold of tab and pull slightly upwards 2 Check the drainage Spray one or two glasses of water upon the evaporator Ensure that water flows drain hose of indoor unit without any leakage 30 5 Connecting Cables between Indoor Unit and Outdoor Unit 1 Connecting cables to the Indoor Unit 1 Remove the Air guide L by loosening 2 screws after removing the Inlet grille from the Indoor unit 2 Connect the wires to the terminals on the con trol board individually according to the outdoor unit
40. vanes carefully d dodge Supporter Unhook the vanes from the vane supporter and remove the upper vane lower vane by pulling the center of vanes with care 10 Remove the drain pan assembly Remove the both side of screws 4 pieces Pull out the drain pan assembly careful not to harm to the EPS packing of drain pan and the tubings of evaporator 11 Remove the evaporator Remove the screws of both sides securing the EVA barrier R L on the side cabinet Remove the screws which fasten the barrier on the evaporator and take out the barrier assembly Remove the evaporator assembly by sliding toward arrow mark As shown in figure S UN a 41 Cycle 1 Installation Connecting the piping between indoor and outdoor unit Outdoor unit 3 Way 2 valve Purge the air Installation 1 Connect the piping between the indoor and outdoor unit firmly Incorrect connection may cause the leakage and incomplete vacuuming 2 Attach the charging hose manifold gage to the Service port Charging hose is necessary to check the pressure and to inject N for leakage test The valve of charging hose must be closed before being connected 3 Inject the 100 300g N gt through the charging hose opening the valve 4 Check the joint part using a gas detector or soapy water for leakage On checking the service valve of main
41. 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 discharged 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 Cycle Troubleshooting Guide Trouble analysis 1 Check temperature difference between intake and discharge air and operating current Temp Difference Operating Current Notice Current Temp difference approx 0 less than 80 of rated current Current Temp difference approx 8 less than 80 of rated current Temp difference less than 8 C Current over the rated current Temp difference over 8 G All amount of refrigerant leaked out Check refrigeration cycle Refrigerant leakege 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 room air humidity is relativery hi
Download Pdf Manuals
Related Search