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Cooling Ampere Chart - Air Conditioners

Cond Inlet Air
Temperature

Rating Ampere

100

95
90
85
80

Model

Amperage

Min

Max

6.5

7.1

6.6

8.0

6.2

7.6

5.9

7.2

5.6

6.8

5.3

6.4

Model

Amperage

Min Max

3.6

3.9

3.4

4.0

3.2

3.8

3.1

3.6

2.9

3.4

2.8

3.3

Model

LP070CE*

LP090CE*

LP120CE*

LP150CE*

Amperage

Min

Max

2.6

2.9

2.6

2.9

2.4

2.8

2.3

2.7

2.2

2.6

2.1

2.4

Model

Amperage

Min

Max

4.8

5.2

5.6

5.6

5.4

5.3

5.2

5.1

4.9

4.8

4.7

4.6

Model

Room Air

Room Air

LP070HE* 

LP090HE* 

LP120HE* 

LP150HE*

Dry

Wet

Temperature Across

Temperature Across

Temperature Across

Temperature Across

Bulb

Bulb

Indoor Coil (

 

T)

Indoor Coil (

 

T)

Indoor Coil (

 

T)

Indoor Coil (

 

T)

Min

Max

Min

Max

Min

Max

Min

Max

Rating Btu/h

6200

6400

8200

8400

10900

11200

13300

13500

Rating CFM

220

250

260

290

330

360

350

390

85

22

24

24

27

27

30

28

30

80

23

24

25

28

28

31

29

31

50

75

24

25

26

29

29

32

30

31

70

26

27

28

30

31

34

32

33

65

26

27

28

30

31

34

32

33

85

19

22

22

24

24

29

27

30

80

20

23

23

25

25

29

28

31

45

75

21

24

24

26

26

30

29

31

70

22

24

24

27

27

31

30

32

65

23

25

25

28

28

32

31

33

85

17

20

20

22

23

27

27

30

80

18

21

21

23

23

28

28

31

40

75

19

22

22

24

24

29

29

31

70

20

23

23

24

25

29

30

32

65

21

24

24

25

26

30

31

33

85

15

17

17

20

21

24

27

29

80

16

18

18

21

22

25

28

30

35

75

17

19

19

22

23

26

29

31

70

18

20

20

23

23

27

30

31

65

19

21

21

24

24

28

31

32

Heating Change of Temperature - Heat Pumps

Cond Inlet Air
Temperature

Rating Ampere

100

95
90
85
80

2

Model

LP070HE* LP090HE*  LP120HE* LP150HE*
Amperage

Min

Max

.6

2.9

2.6

2.9

2.4

2.8

2.3

2.6

2.1

2.5

2.1

2.3

Model

Amperage

Min Max

3.6

3.9

3.4

4.0

3.2

3.8

3.1

3.6

3.1

3.4

2.9

3.3

Model

Amperage

Min

Max

4.8

5.2

5.6

5.5

5.3

5.2

5.0

5.0

4.8

4.7

4.6

4.5

Model

Amperage

Min

Max

6.5

7.1

6.6

8.0

6.2

7.6

5.9

7.2

5.6

6.8

5.3

6.4

Cooling Ampere Chart - Heat Pumps

Summary of Contents for LP070CED

Page 1: ...LG Packaged Terminal Air Conditioner Heat Pump SERVICE MANUAL LG CAUTION http www lgservice com BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL FOR AUTHORIZED SERVICE ONLY ...

Page 2: ...UIREMENTS 30 3 3 1 ELECTRICAL DATA FOR 230V 208 MODEL 30 3 3 2 ELECTRICAL SAFETY 30 4 FIELD INSTALLED ACCESSORIES 31 5 FERFORMANCE DATA 47 6 TROUBLESHOOTING GUIDE 6 1 OUTSIDE DIMENSIONS 52 6 2 PIPING SYSTEM 52 6 3 TROUBLESHOOTING GUIDE 53 7 SCHEMATIC DIAGRAM 58 8 EXPLODED VIEW 61 1 PREFACE This SERVICE MANUAL provides various service information including the mechanical and electrical parts etc Th...

Page 3: ...5 335 11 390 11 390 0 9 1 2 1 5 2 0 45 43 45 43 49 47 49 47 60 58 60 58 63 61 63 61 R22 650 22 75 R22 790 27 9 R22 630 22 2 R22 735 25 9 Rotary Non Tropical Rotary Non Tropical Rotary Non Tropical Rotary Non Tropical 2R10S236A6G 2R12S236A6J QK145KBJ QJ196KAC PSC PSC PSC PSC ATMOS M60 or SUNISO 4GDID ATMOS M60 or SUNISO 4GDID SUNISO 4GSI SUNISO 4GSI 260 290 280 410 Internal Internal Internal Intern...

Page 4: ...230 60 94 6 94 7 94 9 95 7 94 8 95 6 95 5 95 7 9 5 335 9 5 335 11 390 11 390 0 9 1 2 1 5 2 0 45 43 45 43 49 47 49 47 60 58 60 58 63 61 63 61 R22 650 22 75 R22 790 27 9 R22 630 22 2 R22 735 25 9 Rotary Non Tropical Rotary Non Tropical Rotary Non Tropical Rotary Non Tropical 2R10S236A6G 2R12S236A6J QK145KBJ QJ196KAC PSC PSC PSC PSC ATMOS M60 or SUNISO 4GDID ATMOS M60 or SUNISO 4GDID SUNISO 4GSI SUNI...

Page 5: ...0 13300 13500 605 520 625 535 760 680 780 700 1085 950 1100 970 1440 1255 1460 1275 3 0 2 6 2 9 2 4 3 8 3 4 3 6 3 2 5 5 4 8 5 0 4 4 7 3 6 3 6 7 5 8 3 58 3 57 3 43 3 42 3 19 3 2 2 87 2 87 12 2 12 2 11 7 11 7 10 9 10 9 9 8 9 8 3 5 3 5 3 4 3 4 3 3 3 3 3 1 3 1 1 208 60 1 230 60 1 208 60 1 230 60 1 208 60 1 230 60 1 208 60 1 230 60 97 96 2 93 7 96 9 96 2 96 2 94 2 95 1 94 8 95 2 95 7 95 8 94 8 95 8 94 ...

Page 6: ... LP091HEM LP121HEM 2 61 2 67 3 46 3 52 8900 9100 11800 12000 2 31 2 37 3 14 3 19 7900 8100 10700 10900 760 690 775 705 1085 950 1100 970 3 9 3 6 3 5 3 2 5 4 4 8 5 0 4 4 3 43 3 45 3 19 3 2 11 7 11 7 10 9 10 9 3 4 3 4 3 3 3 3 1 208 60 1 230 60 1 208 60 1 230 60 93 7 92 1 96 3 95 8 95 6 95 2 95 7 95 9 9 5 335 11 0 390 1 2 1 5 45 43 49 47 60 58 63 61 R22 860 30 3 R22 815 28 8 Rotary Non Tropical Rotar...

Page 7: ...for optimizing cycling Fan Only Setting High Low The fan can run at HIGH or LOW speed without COOLING or HEATING to provide air circulation and ventilation Indoor Fan Speed Selections High Low The fan can run at HIGH or LOW speed for either COOLING or HEATING Two Fan motors The unit has two fan motors to provide quiet operation and maximum efficiency LED Diagnostics All units have this feature ind...

Page 8: ...both heating and cooling temperature limits by dip switches on control panel from 50 F to 90 F Temperature limits help to prevent overheating and overcooling and reduce energy costs Condensate Drain Valve The unit has a condensate drain valve to prevent water from collecting or freezing in the basepan Quick Heater Recovery The unit is designed to operate the electric heater to warm the room to the...

Page 9: ...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...

Page 10: ...OFF TIME You will usually use shut off time while you sleep If unit is running use Timer to set number of hours until shut off For your sleeping comfort once Time is set the Temperature setting will raise 2 F after 30 minutes and once again after another 30 minutes Push Timer to cycle through the settings from 1 Hour 2 Hours 12 Hours maximum TEMPERATURE SETTING Use this button to automatically con...

Page 11: ...N REMOTE OFF ON ON ON Remote Local Energy Saver Temperature Limit 1 Temperature Limit 2 Temperature Limit 3 PTAC PTHP UNIT TYPE 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 OFF 4 OFF 5 OFF 6 OFF 7 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 OF...

Page 12: ... Limit 2 Limit 3 Lowest Temp Highest Temp Lowest Temp Highest Temp Cooling Operation Heating Operation REMOVING THE FRONT GRILLE Additional controls are available after removing the front grille and option cover of control box To remove the front grille pull out the bottom of front grille and then lift up To replace the front grille place the tabs over the top of the unit and push the bottom of fr...

Page 13: ... desk switch is ON the fan operates according to the 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 y...

Page 14: ...EMOTE LOCAL CONTROL When remote local switch 1 is on it allow the unit to operate by the control of Remote Wall Thermostat The unit control by knobs are not available ENERGY SAVER The energy saver switch 2 is on This switch is set at continuous fan to provide continuous fan operation in cool or heat modes When the switch is off the continuous fan allows continuous circulation of room air and make ...

Page 15: ...rom 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 the 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 gr...

Page 16: ... control box See Figure 2 3 Pull the control box from the Air guide 4 Remove the control box cover See Figure 3 5 Disconnect wire housings on the control box 6 Pull the control box assembly out from the unit See Figure 4 7 Re install the components by referring to the removal procedure Figure 2 Figure 3 Figure 4 ...

Page 17: ...the Evaporator See Figure 5 4 Remove the top cover assembly net steel brace See Figure 6 5 Remove the 6 screws which fasten the Air guide 6 Pull the Air guide assembly out from the unit See Figure 7 7 Remove the 2 screws which fasten the electric heater in the left hand side 8 Pull the electric heater towards left for a while and then lift up vertically to disassemble it completely from Air guide ...

Page 18: ...th wire See Figure 10 6 Remove the supports on both sides 7 Pull the cross flow fan out from the air guide 8 Re install the components by referring to the removal procedure 2 2 3 AXIAL FAN 1 Remove the brace 2 Remove the 4 screws which fasten the condenser with the shroud and the basepan See Figure 11 3 Remove the condenser sideways carefully 4 Remove the clamp which secures the fan with pliers Se...

Page 19: ...y system If there is no valve to attach the recovery system install one such as a WATCO A 1 before venting the refrigerant 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 Figu...

Page 20: ...laced by an exact replacement part 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 Remove the two screws which fasten the P C B board 6 Re install the components by referring...

Page 21: ...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 Figure 20 2 4 3 CAPILLARY TUBE 1 After discharging the refrigerant completely unbraze the in...

Page 22: ...t the manifold 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 Figure 16B With valve C open discharg...

Page 23: ...r 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 16 A Pulling Vacuum Figure 16 B Charging A B EXTERNAL VACUUM PUMP A CHARGING CYLINDER LOW HI B C ...

Page 24: ... recommended the change of outside grille for an unit protection and an addition of a plastic rear grille This is optional 4 Insulation strip prevents the exhaust air from re entering from either side of condenser space which may decrease the cooling efficiency of condenser 406 mm 16 1 066 mm 42 349 mm 13 3 4 505 mm 20 42 13 3 4 16 1 1 2 TYP 1 2 6 21 36 1 2 SQ HOLE 2 REQ D 1 2 DIA HOLE 3 REQ D 2 3...

Page 25: ...ounting an outdoor grille or louver section to the building face may cause a space between the outdoor coil and the louver section Air splitters aligned with the ends of the outdoor coil must be installed between the outdoor coil inlet and outlet air streams Gaps between the outdoor coil and the louver section may allow condenser air recirculation and affect the operation of the unit See page 40 f...

Page 26: ...ge 23 The outside edge of the wall case should extend at least 1 4 beyond the outside wall This is necessary for proper caulking to prevent sealing thedrain holes in the rear flange of the wall case and to facilitate the installation of an accessory drain if used 2 The wall case should be secured to the wall at both sides Use a minimum of two screws or other fastening device on each side See Figur...

Page 27: ... 27 ...

Page 28: ...IT WALL RECEPTACLE BY OTHERS FINISHED FLOOR OR TOP OF CARPET Caulk around perimeter of wall case all four sides where it joins the building Interior and Exterior CAULK 1 4 CAULK LINTEL ROOM CABINET 2 MIN MOUNTING SCREWS BY INSTALLER WALL CASE OUTDOOR GRILLE SIDE CHANNEL 3 MIN 5 MAX 1 5 16 FINISHED FLOOR OR TOP OF CARPET SUB BASE RAK204 CAULK POWER SUPPLY CONDUIT ALTERNATE ENTRY 3 11 16 Caulk aroun...

Page 29: ...t the bottom to release it then lift it up along the unit top front See Figure 18 3 Slide the unit into the wall sleeve and secure with 6 screws through the unit flange holes See Figure 19 4 Reinstall the front grille by hooking the top over the unit top then pushing it in at the bottom See Figure 20 Figure 17 Figure 18 Figure 19 Figure 20 ...

Page 30: ...MODEL 3 3 2 ELECTRICAL SAFETY IMPORTANT GROUNDING INSTRUCTIONS The 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...

Page 31: ... lock by bowing the door with both hands and aligning the door hinge pins with their bracket in the front Figure 23 Important Note Personal Risk Hazard Underwriter s Laboratories Inc listed For institutional use only where supervisory monitoring is available Any other use may increase the risk of personal injury or property damage Note The installation and servicing of this equipment must be perfo...

Page 32: ... booklet should be performed by qualified experienced technicians WARNING Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury Important Note The unit OFF switch does not disconne...

Page 33: ...cket onto the end of the pump by feeding the pump cord through the hole in the bracket and pushing the bracket onto the threads of the pump Slide the supplied washer onto the threads of the pump Screw the pump nut onto the threads of the pump and tighten the nut so that the bracket is secure against the pump Figure 29 12 Position the pump in the back left corner of the basepan and screw the pump b...

Page 34: ... slack and replace the permagum to prevent air leaks Figures 31 and 32 18 To gain access inside the control panel remove the knobs and escutcheon Remove the two screws holding the panel in position Tilt the control panel forward being careful not to pinch any wires Figure 33 19 Lift the control panel up so the control panel is free of its hinges Position the control panel so there is easy access f...

Page 35: ...he building Note The sleeve stiffener must be taken out before the rear sleeve enclosure panel can be removed from the sleeve 2 Prepare the stamped aluminum grille for installation on the sleeve by inserting the six 6 plastic grommets into the square holes located near the outer edges of all four sides of the grille With the grille positioned so the flanges of all four sides are in the up position...

Page 36: ...ury Important Note The unit OFF switch does not disconnect all electrical power to this unit Receiving Upon receipt of the product inspect the shipping carton for signs of visible damage Report any damage or shortage to the carrier and note it on the delivery receipt The product must be stored in its original shipping carton in a dry secure place prior to its installation and use Installation The ...

Page 37: ...ly to the left rear of wall sleeve with sheet metal screws provided See Figure 39 for finished left hand side installation If the unit chassis is to be installed right away install the condenser grille to wall sleeve with hardware provided See condenser grille installation instructions If the unit chassis will not be installed right away replace the rear enclosure panel in the wall sleeve This wil...

Page 38: ...e two blank off plates C and gaskets A on the outdoor portion of the wall sleeve as shown in Figure 40 These components may be installed after the sleeve is secured in the wall opening just prior to the installation of the condenser grille and chassis Leveling Legs Part No AYLL101 Description Leveling legs are designed to provide extra front support and leveling of the wall sleeve Two leg assembli...

Page 39: ... the sight glass toward the outside Check the level again after the unit has been installed Adjust the legs as needed Installation on Wall Sleeve 1 Drill four 1 8 inch diameter holes in the wall sleeve two on each side using the leveling legs as a template Caulk around screws to prevent water leaks 2 Attach the legs to the wall sleeve using the screws provided 3 Adjust the leveling legs to level t...

Page 40: ...ilure to disconnect power before servicing could result in death or serious injury Important Note The unit OFF switch does not disconnect all electrical power to this unit CAUTION Use Copper Conductors Only Unit terminals are not designed to accept other types of conductors Failure to use copper conductors may result in equipment damage Important Note All wiring must comply with applicable local a...

Page 41: ...ead to the center terminal of the fuse holder 3 Connect the white lead to the common C terminal on the capacitor 4 Connect the ground wire to the partition panel where the ground wire on the power cord was located Use the supplied green ground screw 5 Connect the white lead of the wire assembly at the junction box to the white lead of the field power source 6 Connect the black lead of the wire ass...

Page 42: ...N Use Copper Conductors Only Unit terminals are not designed to accept other types of conductors Failure to use copper conductors may result in equipment damage Important Note All wiring must comply with applicable local and national codes Type and location of fused disconnect switch es must comply with all applicable codes Failure to follow these codes could result in overheating and equipment fa...

Page 43: ...for installation in the control panel 1 Remove both knockouts at the fuse holder location Figure 50 2 Install the fuse holders using screws provided The side connector tab on the fuse holders should be towards the left 3 Connect a stripped BK 9 wire to the center of the quick connect tab of the fuse holders Wire nut the other end of this wire to the black field connection wire TB1 Figure 51 4 Conn...

Page 44: ...Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury Important Note The unit OFF switch does not disconnect all electrical power to this unit 1 Grasp the cabinet front as shown in...

Page 45: ...ertently energized Failure to disconnect power before servicing could result in death or serious injury Important Note The unit OFF switch does not disconnect all electrical power to this unit CAUTION Use Copper Conductors Only Unit terminals are not designed to accept other types of conductors Failure to use copper conductors may result in equipment damage Note When using a subbase the wall sleev...

Page 46: ... 16 71 mm 11 13 16 300 mm A B F C E D D E Wall Sleeve Outdoor Side Wall Sleeve Inside Edge Back of Flange A 13 3 4 2 3 4 2 5 8 13 7 8 352 mm 3 1 16 78 mm Left End View Concentric Knockouts In Bottom Ground Screw Location Receptacle Provided Inside subbase Accessory Top View Concentric Knockouts In Rear Field Wiring Line Voltage Field Wiring Line Voltage NEMA 6 20R Receptacle 230 208 VAC Field Sche...

Page 47: ...ty Btu h Cooling Amps A Cooling Power W EER Btuh 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 W et 0 3ESP Hi Indoor CFM W et 0 3ESP Lo Indoor CFM Dry 0 3ESP Hi Indoor CFM Dry 0 3ESP Lo LP090HE 208 230 9 000 9 300 4 1 3 8 820 845 11 0 11 0 2 6 2 6 8 000 8 200 3 4 3 1 690 705 3 4 3 4 240 270 190 230 260 290 220 25...

Page 48: ...770 855 1000 1125 1040 1160 60 555 680 765 850 990 1120 1030 1150 55 540 670 765 835 980 1105 1020 1135 85 540 660 730 815 950 1070 965 1085 80 540 665 735 820 950 1075 980 1095 75 540 665 735 820 955 1080 990 1105 90 70 540 665 735 820 950 1075 990 1105 65 535 660 730 815 950 1070 990 1100 60 525 660 720 805 940 1060 980 1095 55 520 640 710 795 930 1055 965 1075 85 510 635 690 770 895 1020 915 10...

Page 49: ...400 1520 60 575 675 780 880 1060 1170 1390 1515 55 560 655 770 865 1050 1160 1370 1495 85 550 640 745 845 1020 1130 1305 1430 80 555 645 750 850 1025 1135 1325 1445 75 555 645 750 850 1025 1135 1335 1460 90 70 555 645 750 850 1025 1125 1340 1460 65 550 640 745 845 1020 1130 1335 1455 60 540 630 735 835 1010 1120 1320 1440 55 530 620 720 825 1000 1110 1260 1420 85 515 610 700 800 970 1080 1240 1360...

Page 50: ...4 28 31 26 30 26 28 65 12 15 12 14 9 13 9 13 70 60 17 20 16 18 13 17 13 17 55 22 24 20 22 18 21 17 21 Model Room Air Room Air LP070HE LP090HE LP120HE LP150HE Dry Wet Temperature Across Temperature Across Temperature Across Temperature Across Bulb Bulb Indoor Coil T Indoor Coil T Indoor Coil T Indoor Coil T Min Max Min Max Min Max Min Max Rating Btu h 7300 7600 9300 9600 12300 12600 14300 14600 Rat...

Page 51: ...28 30 80 23 24 25 28 28 31 29 31 50 75 24 25 26 29 29 32 30 31 70 26 27 28 30 31 34 32 33 65 26 27 28 30 31 34 32 33 85 19 22 22 24 24 29 27 30 80 20 23 23 25 25 29 28 31 45 75 21 24 24 26 26 30 29 31 70 22 24 24 27 27 31 30 32 65 23 25 25 28 28 32 31 33 85 17 20 20 22 23 27 27 30 80 18 21 21 23 23 28 28 31 40 75 19 22 22 24 24 29 29 31 70 20 23 23 24 25 29 30 32 65 21 24 24 25 26 30 31 33 85 15 1...

Page 52: ...le 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 CONDITION...

Page 53: ...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 7 10 C 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...

Page 54: ...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 power sour...

Page 55: ... 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...

Page 56: ...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 ...

Page 57: ...ures 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 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 rear...

Page 58: ...pes In part B there are 2 types Type 2 Type 3 INDOOR FAN MOTOR INDOOR FAN MOTOR OUTDOOR FAN MOTOR OUTDOOR FAN MOTOR OUTDOOR FAN MOTOR Type 2 BK BL RD OR BR YL BK BL RD OR BR YL BK BL RD OR BR YL BK BL RD OR BR YL BK OR BR YL BK BL RD OR BR YL BL OR BR YL RD OR BR YL BL RD OR BR YL BK RD OR BR YL INDOOR FAN MOTOR OUTDOOR FAN MOTOR INDOOR COIL THERMISTOR INDOOR COIL THERMISTOR INDOOR AIR THERMISTOR ...

Page 59: ...there are 2 types Type 2 Type 3 INDOOR FAN MOTOR INDOOR FAN MOTOR OUTDOOR FAN MOTOR OUTDOOR FAN MOTOR OUTDOOR FAN MOTOR Type 2 BK BL RD OR BR YL BK BL RD OR BR YL BK BL RD OR BR YL BK BL RD OR BR YL BK OR BR YL BK BL RD OR BR YL BL OR BR YL RD OR BR YL BL RD OR BR YL BK RD OR BR YL INDOOR FAN MOTOR OUTDOOR FAN MOTOR INDOOR COIL THERMISTOR INDOOR COIL THERMISTOR INDOOR AIR THERMISTOR INDOOR AIR THE...

Page 60: ... 60 7 3 MECHANICAL P NO 3850A20594J CN EXT CN TRANS CN ODF RY HEST1 RY OFD CN IDF CN COMP CN N CN L CN EXTN N CN IDAT CN IDPT ...

Page 61: ...0 A 237200 W0CZZ 2 W0CZZ W6640 238310 268711 2 249951 135511 147910 TE MP TI ME MO DE HEA T HEA T E SA VE E SA VE FAN FAN COO L COO L HIG H HIG H LOW LOW TIM ER TIM ER FAN TIM ER F ON OF F ON OF F ON OF F ON OF F 268711 1 249941 1 249941 2 268711 4 264110 D 346810 152302 1 359011 352390 149400 337000 349600 1 C 552114 35211A 552113 352116 352115 435300 567480 4 263230 1 435300 1 ...

Page 62: ...Z 2 W0CZZ W6640 238310 268711 2 249951 135511 147910 TE MP TI ME MO DE HEA T HEA T E SA VE E SA VE FAN FAN COO L COO L HIG H HIG H LOW LOW TIM ER TIM ER FAN TIM ER F ON OFF ON OFF ON OFF ON OFF 268711 1 249941 1 249941 2 268711 4 264110 552206 D 346810 152302 1 359011 352390 149400 337000 349600 1 435300 567480 4 263230 1 263230 2 C 1 552113 552116 552112 352116 352115 435300 1 ...

Page 63: ...54030 148000 135515 135800 135500 567502 550140 249951 552206 D 346810 152302 1 359011 352390 149400 337000 349600 1 435300 567480 4 263230 1 C 1 552113 552116 552112 352116 352115 A 1 237200 W0CZZ 2 W0CZZ W6640 268711 2 135511 147910 264110 249941 2 149410 238310 249941 1 435300 1 8 3 MECHANICAL ...

Page 64: ...P No 3828A20308D January 2007 Printed in Korea ...

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