LG 230/208V Скачать руководство пользователя страница 20 | Manualshive

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—20—

Perpendicular
20 A

Tandem
15 A

Large Tandem
30 A

230/208 volt receptacle configuration

CAUTION

1. Do not use an extension cord with this unit.
2. When the unit is in the OFF position, the power supply to the

electrical controls.

3. Disconnect the power to the unit before servicing

the unit.

4. Remove the power cord from the wall receptacle.
5. Remove or turn off the protective device (fuses or circuit breaker).

Wirings including installation of the receptacle must comply with the
NEC and local codes, local regulations.

FUSE- Use a time-delay fuse or circuit breaker. Refer to the nameplate

for proper power supply requirements.

3.3.1 ELECTRICAL DATA (FOR 230/208V MODEL)

3.3.2 ELECTRICAL SAFETY

IMPORTANT GROUNDING INSTRUCTIONS
Air conditioner has a three-prong grounding plug on its power supply cord, which must be plugged into properly grounded
three-prong wall receptacle for your protection against possible shock hazard.
FUSE – Use a time-delay fuse or circuit breaker. Refer to the nameplate for proper power supply requirements.
208, 230, and 208/230 VOLT UNITS
These units are equipped with a three-prong grounding plug on the power supply cord, which must be plugged into a matching
properly grounded three-prong wall receptacle for your protection against possible shock hazard. If such an outlet is not
present, one must be installed by a qualified electrician in accordance with the National Electrical Code and local codes and
ordinances.
NOTE: DO NOT USE AN EXTENSION CORD on 208, 230, and 208/230 Volt units.

3.3 ELECTRICAL REQUIREMENTS

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Содержание 230/208V

Страница 1: ...LG Room Air Conditioner SERVICE MANUAL LG CAUTION website http www lgservice com BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL ...

Страница 2: ...HOOTING GUIDE 27 6 SCHEMATIC DIAGRAM 32 7 EXPLODED VIEW 33 8 REPLACEMENT PARTS LIST 34 1 PREFACE This SERVICE MANUAL provides various service information including the mechanical and electrical parts etc This room air conditioner was manufactured and assembled under a strict quality control system The refrigerant is charged at the factory Be sure to read the safety precautions prior to servicing t...

Страница 3: ...2 2 0 kW 3 3 5 kW 5 5 0 kW LP120CEM 11800 11500 1055 1025 11 2 11 2 20 Model Name Cooling Btu h Cooling Watts W EER Electric Heat Btu h Electric Heat Amps A Min Circuit Protection Amps Cooling Electric Heater LP090HEM 9300 9000 800 775 11 6 11 6 8200 8000 3 4 3 4 11900 9900 3 2 3 5 20 LP120HEM 12100 11800 1090 1065 11 1 11 1 10900 10700 3 3 3 3 11900 9900 4 4 4 8 20 Model Name Cooling Btu h Coolin...

Страница 4: ...ad diagnostics For example 1 blink every 2 seconds indicates the compressor failure Indoor Filters The unit uses the two indoor filters easily slide in and out The filters may be cleaned by washing and brushing without removing the front grille Rotary Compressor The unit uses the rotary compressor for the quiet reliable operation and prolong life 2 Position Discharge Grille The discharge grille ca...

Страница 5: ...e temperature increase for better comfort Reverse Cycle Defrosting PTHDs only The unit will activate the reverse cycle defrost When the outdoor coil temperature has remained at a cold temperature to form the ice on the coil This ice will reduce airflow though the coil and will also reduce the efficiency of unit The LG PTHP will employ an active reverse cycle defrost function to melt the ice off th...

Страница 6: ...eed fan operation HIGH HEAT Heating with the high speed fan operation VENTILATION The ventilation lever is located to the lower left side of the unit The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions When fresh air is necessary in the room set the ventilation lever to the OPEN position The damper is opened and outdoor air is drawn into the room Th...

Страница 7: ...ure limiting is not available with the Remote Wall Thermostat 7 LOCAL 1 OFF 2 OFF 3 OFF 4 OFF 5 LOCAL 1 OFF 2 OFF 3 OFF 4 OFF 5 ON ON REMOTE OFF ON ON ON Remote Local Energy Saver Temperature Limit 1 Temperature Limit 2 Temperature Limit 3 LOCAL LOCAL 1 OFF OFF 2 OFF OFF 3 OFF OFF 4 OFF OFF 5 LOCAL 1 OFF 2 OFF 3 OFF 4 OFF 5 LOCAL LOCAL 1 OFF OFF 2 OFF OFF 3 OFF OFF 4 OFF OFF 5 LOCAL 1 OFF 2 OFF 3 ...

Страница 8: ...ON the fan operate according to the condition of setting without working compressor and heater When the front desk switch is OFF the unit can operate according to the setting of controls REMOTE WALL THERMOSTAT When the wires are connected the unit will be controlled by a remote wall thermostat The thermostat connections supply the 24 Volt AC When you install the digital electronic thermostat you m...

Страница 9: ...om the top of the unit through reversible 2 position discharge grille louvers The unit is shipped from the factory with the discharge grille louvers at an angle of 40 off vertical In an alternate position the louvers will be at an angle of 15 off vertical To adjust air direction remove the front grille Remove the 4 screws that fasten the discharge grille to the front grille Flip the discharge gril...

Страница 10: ...ol box 6 Pull the control box forward completely 7 Re install the components by referring to the removal procedure See Fig 2 Refer to the circuit diagram found on page 25 in this manual and on the control box 2 1 3 CONTROL BOX Full Disassembly 1 Remove the front grille Refer to section 2 1 1 2 Remove the 4 screws which fasten the control box cover See Fig 3 3 Disconnect three wire housings in the ...

Страница 11: ...4 5 Loosen the hexagon screw with the Hex wrench See Fig 5 6 Remove the 4 screws which fasten the indoor motor and the earth wire See Fig 5 6 7 Re install the components by referring to the removal procedure above 2 2 2 FAN 1 Remove the brace 2 Remove the 4 screws which fasten the condenser with the shroud and the basepan 3 Move the condenser sideways carefully 4 Remove the clamp which secures the...

Страница 12: ...ve to attach the recovery system install one such as a WATCO A 1 before venting the FreonTM Leave the valve in place after servicing the system 2 Disconnect the 3 leads from the compressor 3 After purging the unit completely unbraze the suction and discharge tubes at the compressor connections 4 Remove the 3 nuts and the 3 washers which fasten the compressor See Fig 10 5 Remove the compressor 6 Re...

Страница 13: ...nd marked hole for ground connection 7 If the supply cord of this appliance is damaged it must be replaced by the special cord The special cord means the cord which has the same specification marked on the supply cord fitted to the unit 2 3 6 P C B 1 Remove the escutcheon 2 Remove the two knobs 3 Remove the 2 screws which fasten P C B cover 4 Disconnect all the leads which connected to the P C B 5...

Страница 14: ... box assembly Refer to section 2 1 2 4 Remove the 4 screws which fasten the evaporator at the left side and the right side 5 Move the evaporator sideward carefully and then unbraze the interconnecting tube at the evaporator connectors 6 Remove the evaporator 7 Re install the components by referring to notes See Fig 15 2 4 3 CAPILLARY TUBE 1 After discharging the refrigerant completely unbraze the ...

Страница 15: ...ifold connection 5 The system is now ready for final charging 6 Recharge as follows 1 Refrigeration cycle systems are charged from the High side If the total charge cannot be put in the High side the balance will be put in the suction line through the access valve which you installed as the system was opened 2 Connect the charging cylinder as shown in Fig 16B With valve C open discharge the hose a...

Страница 16: ...or proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve A COMPOUND GAUGE EVAPORATOR LOW PRESSURE SIDE COMPRESSOR CAPILLARY TUBE CONDENSER HIGH PRESSURE SIDE SEE INSETS BELOW MANIFOLD GAUGE B Figure 16A Pulling Vacuum Figure 16B Charging A B EXTERNAL VACUUM PUMP A CHARGING CYLINDER LOW HI B C ...

Страница 17: ...le like a fence within 20 which might restrict heat radiation from the condenser B IF YOU WANT TO PULL OUT THE FILTER DOWNWARD The grille is already designed for that way 1 Install the unit a little obliquely outward not to leak the condensed water into the room about 1 2 or 1 4 bubble with level 2 Install the unit with its bottom portion 30 60 above the floor level 3 The power cord must be connec...

Страница 18: ...leeve as shown on the right Assemble the outdoor grille and fasten the 4 screws as shown on the right 3 2 2 PREPARATION OF THE FRONT GRILLE Carefully remove shipping tape if there is any from the front grille SCREWDRIVER RULER KNIFE HAMMER PENCIL LEVEL I N D O O R I N D O O R INDOOR I N D O O R I N D O O R 1 4 1 2 1 1 Shipping tape I N D O O R 3 2 SUGGESTED TOOL REQUIREMENTS SLEEVE HARDWARE NUMBER...

Страница 19: ...t at the bottom to release it then lift it up along the unit top front See Fig 18 3 Slide the unit into the wall sleeve and secure with 6 screws through the unit flange holes See Fig 19 4 Reinstall the front grille by hooking the top over the unit top then pushing it in at the bottom See Fig 20 Figure 17 Figure 18 Figure 19 Figure 20 ...

Страница 20: ... 3 2 ELECTRICAL SAFETY IMPORTANT GROUNDING INSTRUCTIONS Air conditioner has a three prong grounding plug on its power supply cord which must be plugged into properly grounded three prong wall receptacle for your protection against possible shock hazard FUSE Use a time delay fuse or circuit breaker Refer to the nameplate for proper power supply requirements 208 230 and 208 230 VOLT UNITS These unit...

Страница 21: ...Watt Moisture Removal Pts h Heat Pump Heating Data Heating Capacity Btu h Heating Amps A Heating Power W COP W W Airflow Indoor CFM Wet 0 3ESP Hi Indoor CFM Wet 0 3ESP Lo Indoor CFM Dry 0 3ESP Hi Indoor CFM Dry 0 3ESP Lo LP090HEM 208 230 9 000 9 300 3 9 3 7 775 800 11 6 11 6 3 4 3 4 8 000 8 200 3 5 3 2 690 705 LP120HEM 208 230 4 8 950 208 230 3 3 970 Air Conditioner Performance Data Heat Pump Perf...

Страница 22: ...045 1175 55 1030 1160 85 1000 1125 80 1005 1130 75 1005 1135 95 70 1005 1130 65 1000 1125 60 990 1120 55 980 1105 85 950 1070 80 950 1075 75 955 1080 90 70 950 1075 65 950 1070 60 940 1060 55 930 1055 85 895 1020 80 900 1020 75 905 1030 85 70 900 1020 65 895 1020 60 890 1010 55 880 1000 85 850 970 80 850 970 75 850 975 80 70 850 970 65 850 970 60 940 960 55 830 950 Cooling Wattage Air Conditioners...

Страница 23: ...795 890 1075 1190 95 70 790 890 1075 1190 65 785 890 1070 1180 60 780 880 1060 1170 55 770 865 1050 1160 85 745 845 1020 1130 80 750 850 1025 1135 75 750 850 1025 1135 90 70 750 850 1025 1125 65 745 845 1020 1130 60 735 835 1010 1120 55 720 825 1000 1110 85 700 800 970 1080 80 705 800 975 1085 75 705 810 975 1085 85 70 705 800 975 1085 65 700 800 970 1080 60 690 790 960 1070 55 680 775 950 1060 85...

Страница 24: ...17 55 18 21 Model Room Air Room Air LP090HEM LP120HEM Dry Wet Temperature Across Temperature Across Bulb Bulb Indoor Coil T Indoor Coil T Min Max Min Max Rating Btu h 9300 9600 12300 12600 Rating CFM 240 270 310 340 85 2 6 1 5 80 11 15 10 13 90 75 19 22 18 22 70 29 30 26 30 80 7 11 5 10 75 15 18 14 18 85 70 23 25 21 25 65 31 33 30 33 75 11 15 10 13 70 18 20 16 20 80 65 24 27 23 26 60 32 33 30 33 7...

Страница 25: ... 27 30 80 25 28 28 31 50 75 26 29 29 32 70 28 30 31 34 65 28 30 31 34 85 22 24 24 29 80 23 25 25 29 45 75 24 26 26 30 70 24 27 27 31 65 25 28 28 32 85 20 22 23 27 80 21 23 23 28 40 75 22 24 24 29 70 23 24 25 29 65 24 25 26 30 85 17 20 21 24 80 18 21 22 25 35 75 19 22 23 26 70 20 23 23 27 65 21 24 24 28 Heating Change of Temperature Heat Pumps Cond Inlet Air Temperature RatingAmpere 100 95 90 85 80...

Страница 26: ... and the flow of the refrigerant in the cooling cycle MOTOR COMPRESSOR OIL LIQUID REFRIGERANT CAPILLARY TUBE OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH SUCTION LIME COOL LOW PRESSURE VAPOR COOLED AIR COMPLETE LIQUID BOIL OFF POINT LIQUID PRESSURE DROP ROOM AIR HEAT LOAD VAPOR INLET HOT DISCHARGED AIR LIQUID OUTLET HIGH PRESSURE VAPOR LIQUID PEFRIGERANT LOW PRESSURE VAPOR ROOM AIR CONDITIONER...

Страница 27: ...ration Check gas leakage Repair gas leak Replacement of unit if the unit is beyond repair Satisfactory operation with temperature difference of inlet outlet air 44 6 50 F Check heat load increase Unexpected residue Overloaded Circuit Check of inside gas pressure Adjusting of refrigerant charge Malfunction of compressor Replacement of compressor Check of cold air circulation for smooth flow Dirty i...

Страница 28: ...lation Replacement of fan motor Regular but fails to start Replacement of compressor locking of rotor metal Improper thermostat setting Loose terminal connection Improper wiring Irregular motor resistance Irregular motor insulation Replacement of compressor Motor damaged Drop of power voltage Check capacitor Replacement Only compressor fails to start Defect of compressor capacitor Check of power s...

Страница 29: ... bearings if motor shaft will not rotate replace the motor Check voltage See limits on this page If not within limits call an electrician Test capacitor Check bearings Does the fan blade rotate freely If not replace fan motor Pay attention to any change from high speed to low speed If the speed does not change replace the motor Check grommets if worn or missing replace them If cracked out of balan...

Страница 30: ...e position of knob If not at the coldest setting advance the knob to this setting and restart unit Check continuity of the thermostat Replace thermostat if circuit is open Check the capacitor Replace if not within 10 of manufacturers rating Replace if shorted open or damaged Check the compressor for open circuit or ground If open or grounded replace the compressor Check the compressor overload if ...

Страница 31: ...res will increase causing the compressor to cycle Straighten the fins or replace the coil Test capacitor Check the terminals If loose repair or replace Check the system for a restriction If restricted clean of replace Close if open Determine if the unit is properly sized for the area to be cooled Check the set screw or clamp If loose or missing correct If the blower or fan is hitting air guide rea...

Страница 32: ... RY COMP CN EXT L CN EXT N CN EXT2 CN TRANS CN 4WAY CN IDFH CN IDFL CN ODFL CN ICR CN 4WAY HIGH FAN LOW HEAT LOW COOL HIGH COOL HIGH HEAT IN COIL IN AIR OFF SW1 BL RD RD RD OR BR YL YL BR OR RD BL BL BL BR C C H F YL YL S R O L P COMP BK BK BK BK RD OR BR OR BR RD INDOOR FAN MOTOR OUTDOOR FAN MOTOR GN GN YL RD BK BK BK 3 RY HEAT1 RY HEAT2 4 3 4 FUSE LINK 5KW BI METAL THERMOSTAT LOCATION NO 1 2 3 4...

Страница 33: ...0 W50400 152302 135312 149410 237200 237204 238310 W0CZZ 1 W0CZZ 2 264110 263230 1 W50400 W6640 249951 268714 237200 354210 349600 1 546811 559011 W48602 149980 130411 554160 554030 135515 349600 552114 552102 552113 135500 567502 135510 147900 550140 148000 552206 263230 2 ...

Страница 34: ... 6750U L061A 6750U L039A C 35211A TUBE ASM SUCTION 5211A21365A 552114 TUBE ASM DISCHARGE 5211A20531A 552111 TUBE ASM CAPILLARY 5211A20623D 552113 TUBE ASM CONDENSER OUT 5211A30434A 552102 TUBE CAPILLARY BEND 5210A22614D D 147911 BARRIER ASM INDOOR 4791A10005D 4791A10005A 346810 MOTOR ASM INDOOR 4681A20064E 4681A20064A 349600 MOUNT MOTOR 4960A20026A 4960A20032A 359011 FAN ASM CROSS FLOW 5901A10027A...

Страница 35: ...P No 3828A20308H May 2006 Printed in Korea ...

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