LG Electronics LP091HEM-Y8 user manual

User manual for the device LG Electronics LP091HEM-Y8

Device: LG Electronics LP091HEM-Y8
Category: Air Conditioner
Manufacturer: LG Electronics
Size: 4.54 MB
Added : 7/31/2014
Number of pages: 47
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Summary of the content on the page No. 1

Internal Use Only
http://biz.lgservice.com
Window Air Conditioner
SVC MANUAL
MODEL : LP091HEM-Y8
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.

Summary of the content on the page No. 2

1. Specification Model LP091HEM-Y8 Cooling Capacity kW 2.49 2.54 Btu/h. 8500 8700 Heating Capacity ( for Heat Pump models) kW 2.14 2.20 Btu/h. 7300 7500 Electric Heater capacity kW 3.08 3.49 Btu/h. 10500 11900 Power Input Cooling/Heating W 787/676 805/694 Running Current Cooling/Heating A 3.95/3.4 3.65/3.15 Starting current Cooling/Heating A -- Electric Heater Current A 14.9 15.2 EER W/W 3.17 3.17 Btu/h.W 10.8 10.8 COP W/W 3.17 3.17 Power Supply Ø / V / Hz 1 / 208 / 60 1 / 230 / 60 Power Factor

Summary of the content on the page No. 3

1.2 FEATURES AND BENEFITS The PTAC has many features, some of which are different than those found on conventional PTAC units. The servicer must be familiar with these features in order to properly service the unit. THE SLEEVE AND THE REAR GRILLE (Available as an option) REAR GRILLE VERTICAL AIR DEFLECTOR SLEEVE ASSEMBLY (Horizontal Louver) (Including Aluminum Rear Grille) (Aluminum Rear Grille) AIR FILTER INLET GRILLE (Air Intake) EXPANDED METAL GRILLE (Superior for a performance) • IIR (Infini

Summary of the content on the page No. 4

• Indoor Filters The unit uses two indoor filters which slide in and cut easily. The filters may be cleaned by washing and brushing without removing the front grille. • Rotary Compressor The unit uses a rotary compressor for quiet, reliable operation and long life. • 2 Position Discharge Grille The discharge grille can provide air flows upward at an angle of 40 off vertical or 15 degree off vertical. The angle is changed by removing the front grille and 4 screws that fasten the discharge grille

Summary of the content on the page No. 5

1.3 CONTROL LOCATIONS • OPERATION OPERATION MODE SELECTOR OFF Turns air conditioner off. LOW FAN Low speed fan operation without cooling. HIGH FAN High speed fan operation without cooling. LOW COOL Cooling with the low speed fan operation. HIGH COOL Cooling with the high speed fan operation. LOW HEAT Heating with the low speed fan operation. ELECTRIC HEATING MODEL HIGH HEAT Heating with the high speed fan operation. TEMPERATURE CONTROL Set the Thermostat control to the desired temperature mark 5

Summary of the content on the page No. 6

1.4 ADDITIONAL CONTROLS • 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 front grille until the clips snap into place. • ADDITIONAL CONTROLS The additional controls are located behind the option cover of control box. The standard settings will be i

Summary of the content on the page No. 7

• REMOTE/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 the more balanced temperature of the room. When the switch is on the fan is on or off wi

Summary of the content on the page No. 8

2. Disassembly Instructions — Before the following disassembly, POWER SWITCH is set to OFF and disconnected the power cord. 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 1. Remove the front grille. (See Figure 1) 2. To remove the front grille, pull out the bottom of the front grille and then lift up. Re-install the component by referring to the removal procedure. 3. To replace the front grille, place the tabs over the top of the unit and push the bottom of front grille until the clips snap into place.

Summary of the content on the page No. 9

2.1.2 CONTROL BOX 1. Remove the front grille. (Refer to section 2.1.1) 2. Remove the two screws which fasten the control box. (See Figure 2) 3. Pull the control box from the Air guide. Figure 2 4. Remove the control box cover. (See Figure 3) 5. Disconnect wire housings on the control box. Figure 3 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 4 - 9 - Copyright ©2008 LG Electronics. Inc. All right r

Summary of the content on the page No. 10

2.2 AIR HANDLING PARTS 2.2.1 ELECTRIC HEATER (ELECTRIC HEATER MODEL ONLY) 1. Remove the front grille.(Refer to section 2.1.1) 2. Remove the control box assembly. (Refer to section 2.1.2) 3. Remove the 4 screws which fasten the Evaporator. Figure 5 (See Figure 5) 4. Remove the top cover assembly, net steel, brace. (See Figure 6) 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) Figure 7 7. Remove the 2 screws which fas

Summary of the content on the page No. 11

2.2.2 CROSS FLOW FAN 1. Remove the front grille. (Refer to section 2.1.1) 2. Remove the control box assembly. (Refer to section 2.1.2) 3. Remove the Air-Guide Assembly from the unit. (Refer to section 2.2.1) 4. Loosen the screw on the cross flow fan. (See Figure 9) Figure 9 5. Remove the 4 screws which fasten the indoor motor and the earth 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

Summary of the content on the page No. 12

2.2.4 SHROUD 1. Remove the axial fan. (Refer to section 2.2.3) 2. Remove the 4 screws which fasten the condenser with the shroud and the basepan. (See Figure 11) 3. Remove the shroud. 4. Re-install the component by referring to the removal procedure. 2.3. ELECTRICAL PARTS 2.3.1 OUTDOOR MOTOR 1. Remove the clamp cord and disconnect a wire housing in control box. (Refer to section 2.1.2) Figure 13 2. Remove the axial fan. (Refer to section 2.2.3) 3. Remove the 2 screws which fasten the motor.

Summary of the content on the page No. 13

2.3.5 POWER CORD 1. Remove the control box. (Refer to section 2.1.2) 2. Disconnect the grounding screw from the control box. 3. Disconnect 2 receptacles. 4. Remove a screw which fastens the clip cord. 5. Separate the power cord from the control box. (See Figure 17) 6. Re-install the component by referring to the removal procedure, above. (Use only one ground-marked hole for ground connection.) 7. If the supply cord of this appliance is damaged, it must be replaced by an exact replacement pa

Summary of the content on the page No. 14

2.4 REFRIGERATION CYCLE CAUTION Discharge the refrigerant system using a refrigerant recovery 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. 2.4.1 CONDENSER 1. Remove the brace and the shroud. (Refer to section 2.2.2) 2. Remove the 4 screws which fasten the shroud. Figure 19 (Refer to section 2.2.2) 3. Push forward the shroud and remove the 2 screws which fasten the

Summary of the content on the page No. 15

NOTES — Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to 6. Recharge as follows : discharge the refrigerant system using a 1) Refrigeration cycle systems are charged from the refrigerant recovery system. high-side. If the total charge cannot be put If there is no valve to attach the recovery system, in the high-side, the balance will be put in the install one (such as a WATCO A-1) before venting suction line through the access valve which you the r

Summary of the content on the page No. 16

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, service valve. Figure 21 A-Pulling Vacuum Figure 21 B-Charging - 16 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes COMPOUND GAUGE CONDENSER (HIGH PRESSURE SIDE) MANIFOLD GAUGE B A CAPILLARY TUBE SEE INSETS BELOW EVAPORATOR (LO

Summary of the content on the page No. 17

3. Installation Dimension of air conditioner 3.1 HOW TO INSTALL THE UNIT CAUTION 1,066 mm • There are sharp edges that can cause serious cuts. (42") • When lifting the air conditioner, it is HEAVY. Use 2 people to lift. For existing sleeve, you should measure the wall sleeve 406 mm (16") dimensions. Install the new air conditioner according to these installation instructions to achieve the best performence. All wall sleeves 349 mm used to mount the new air conditioner must be in good 3 (13 /4")

Summary of the content on the page No. 18

3.2 WALL SLEEVE INSTALLATION For new construction, early planning with the architect 3.2.1 Wall Case Installation Data is necessary. Unit location, electrical connection locations, and wall openings of the proper dimensions are essential to avoid the necessity of rework, fillers, framing, moving electrical outlets, and other expensive modifications. For existing construction it is important that carpentry, General masonry and electrical work be performed by Generally, units are installed 3" to

Summary of the content on the page No. 19

1 1 1 The outside edge of the wall case should extend at least 3.2.2 PREPARATION OF THE FRONT 1/4" beyond the outside wall. GRILLE This is necessary for proper caulking, to prevent sealing Carefully remove shipping tape from the front grille. 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 Figu

Summary of the content on the page No. 20

- 20 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes


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