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Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Equipment needed:

Vacuum pump, charging cylinder, manifold gauge, brazing equipment, pinch-off tool capable

of making a vapor proof seal, leak detector, tubing cutter, hand tools to remove components and service valve. 

B

A

B

A

B

A

COMPOUND GAUGE 

SEE INSETS

BELOW

CAPILLARY TUBE 

EVAPORATOR
(LOW PRESSURE SIDE)

COMPRESSOR

CONDENSER
(HIGH PRESSURE SIDE)

EXTERNAL VACUUM PUMP

LO      HI    CHARGING CYLINDER

MANIFOLD

GAUGE

C

Figure 21A-Pulling Vacuum

Figure 21B-Charging 

Summary of Contents for ZStar ZQ05A10B

Page 1: ...Room Air Conditioner Service and Parts Manual ZStar ZQ05 ZQ07 12 02...

Page 2: ...HANDLING PARTS 6 2 2 1 AIR GUIDE UPPER 6 2 2 2 ORIFICE TURBO FAN AND FAN 6 2 2 3 MOTOR 7 2 2 4 AIR GUIDE 7 2 3 ELECTRICAL PARTS 7 2 3 1 OVERLOAD PROTECTOR 7 2 3 2 COMPRESSOR 8 2 3 3 CAPACITOR 8 2 3 4...

Page 3: ...OLING TOP DOWN CHASSIS FOR THE SIMPLE INSTALLATION AND SERVICE BUILT IN ADJUSTABLE THERMOSTAT WASHABLE ONE TOUCH FILTER COMPACT SIZE 1 2 SPECIFICATIONS MODELS ITEMS COOLING CAPACITY BTU h 5 250 7 000...

Page 4: ...he resistance value with an ohm meter between the jumpered lead and each exposed metallic part on the equipment at all position except Off of the ROTARY SWITCH 4 The value should be over 1 M CAUTION A...

Page 5: ...ille Refer to section 2 1 1 3 Remove 9 screws that secure the cabinet to the base pan and condenser See Figure 3 4 Lift the cabinet from the unit 5 Re install by referring to the procedures above 2 1...

Page 6: ...e Refer to Section 2 1 1 3 Remove the cabinet Refer to Section 2 1 2 4 Remove the control board Refer to Section 2 1 3 5 Remove the air guide upper Refer to Section 2 2 1 6 Remove 2 screws that secure...

Page 7: ...r to Section 2 1 1 3 Remove the cabinet Refer to Section 2 1 2 4 Remove the control board Refer to Section 2 1 3 5 Remove the air guide upper Refer to Section 2 2 1 6 Remove the compressor turbo fan f...

Page 8: ...K resistor across the capacitor terminals 4 Remove the screw which fastens the capacitor clamp 5 Remove all the leads of capacitor terminals 6 Re install the components by referring to the removal pr...

Page 9: ...acles and remove the grounding screw 7 Remove a screw securing the clip with cord to the control board 8 Pull the power cord 9 Re install by referring to procedures above 2 4 REFRIGERANT CYCLE 2 4 1 C...

Page 10: ...ll keep oil from foaming and being drawn into the vacuum pump 6 3 Operate the vacuum pump for 20 to 30 min utes until 600 micron vacuum is obtained Close valves A and B and observe vacuum gauge for a...

Page 11: ...azing equipment pinch off tool capable of making a vapor proof seal leak detector tubing cutter hand tools to remove components and service valve B A B A B A COMPOUND GAUGE SEE INSETS BELOW CAPILLARY...

Page 12: ...o 36 The upper and lower sash must open sufficiently to allow a clear vertical opening of 13 from the bot tom of the sash to the window stool 2 If storm window presents interference fasten a 2 wide wo...

Page 13: ...inner sill as shown in Figure 27 2 ATTACH L BRACKET a Install the L brackets behind the inner window sill with the short side of bracket as shown Use the 2 screws TYPE A provided b The bracket helps...

Page 14: ...m as shown in Figure 31 5 INSTALL THE SASH SEAL AND SASH LOCK a Cut the sash seal TYPE E to the window width Stuff the sash seal between the glass and the window to prevent air and insects from gettin...

Page 15: ...dows 3 3 ELECTRICAL DATA USE OF EXTENSION CORDS Because of potential safety hazards we strongly discourage the use of an extension cord However if you wish to use an extension cord use a CSA certified...

Page 16: ...efrigerant in the cooling cycle COOLED AIR HOT DISCHARGED AIR MOTOR COMPRESSOR ROOM AIR HEAT LOAD CAPILLARY TUBE LIQUID REFRIGERANT LIQUID OUTLET VAPOR INLET COMPLETE LIQUID BOIL OFF POINT SUCTION LIN...

Page 17: ...Cooling Satisfactory operation with temperature difference of inlet outlet air 55 59 F 13 15 C Replacement of unit if the unit is beyond repair Check outdoor coil heat exchanger and fan operation Che...

Page 18: ...switch setting Compressor fails only to start Defect of compressor capacitor Replacement of compressor Motor damaged Irregular motor insulation Irregular motor resistance Check of circuit breaker and...

Page 19: ...identification Repair or replace loose terminal Capacitor Discharge Test capacitor capacitor before testing Replace if not within 10 of manufacturer s rating Replace if shorted open or damaged Will n...

Page 20: ...orrect the connections Rotary Check for continuity refer to the wiring diagram for terminal identification Replace the switch if the circuit is open Thermostat Check the position of knob If not at the...

Page 21: ...e damaged area on the coil surface head pressures will increase causing the compressor to cycle Straighten the fins or replace the coil Capacitor Test the capacitor Wiring Check the terminals If loose...

Page 22: ...WITCH 2 H L M BK BR RD BL BK POWER INPUT BK BR Plain WH BL Ribbed GN GN YL RD BL YL OR BR 4 6 8 1 3 5 7 BL RD BK BR WIRING DIAGRAM SYNC M S C 3 4 Q TY PER SET 1 1 1 1 1 1 1 LOCATION NO 1 2 3 4 5 6 7 D...

Page 23: ...and service purposes LGE Internal Use Only 6 EXPLODED VIEW Model LWC051JPAA1 152302 149410 147582B 147582A 135313 352390 135312 130410 359012 354210 349480 352380 559011 346811 554030 130910 266003 2...

Page 24: ...ning and service purposes LGE Internal Use Only Model LWC071JPAA0 152302 149410 147582B 147582A 135313 352390 135312 130410 359012 354210 349480 352380 559011 346811 554030 130910 266003 264110 269300...

Page 25: ...st Office Box 1540 4200 N Pan Am Expressway San Antonio Texas 78295 1540 210 357 4400 FAX 210 357 4480 FRIEDRICH AIR CONDITIONING CO Visit our web site at www friedrich com P NO 3828A20038T Use Factor...

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