User manual LG LP120HED1

[. . . ] Just a little preventive care on your part can save you a great deal of time and money over the life of your air conditioner. You'll find many answers to common problems in the chart of troubleshooting tips. If you review our chart of Troubleshooting Tips first, you may not need to call for service at all. PRECAUTION · Contact an authorized service technician for repair or maintenance of this unit. · Contact the installer for installation of this unit. [. . . ] Here are some of the problems defined below for which the LED indicates by flashing number of times the error has been reconrded against it. The errors are the mentioned in the (Table 13) which is as follows: ON OFF Fault Codes CH 01 CH 02 CH 03 CH 04 CH 05 CH 06 CH 07 Normal No power / failed board Indoor Air Thermistor Error Indoor Coil Thermistor Error Outdoor Air Thermistor Error (PTHP Only) Outdoor Coil Thermistor Error (PTHP Only) Mode Error Setpoint Error Bad Thermistor Wiring Owner's Manual 15 Control Locations 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 in the OFF position. The authorized servicer has to check switches and ensure the switches are in the desired position. REMOTE ON ON ON ON ON OFF Remote/Local Energy Saver OFF LOCAL 1 Temperature Limit 2 1 Temperature Limit 2 Temperature Limit 3 PTAC/PTHP UNIT TYPE LOCAL OFF 1 2 OFF OFF OFF 3 4 5 OFF 6 OFF 7 OFF OFF 3 4 OFF 5 · TEMPERATURE LIMITING Temperature Limiting can save money by limiting the lowest temperature for cooling and the highest temperature for heating. The temperature limiting is controlled by switches #1 - #3. This temperature limiting is not available with the Remote Wall Thermostat. Temperature Limit #1 OFF ON OFF ON OFF ON OFF ON Temperature Limit #2 OFF OFF ON ON OFF OFF ON ON #6 OFF OFF ON ON Temperature Limit #3 OFF OFF OFF OFF ON ON ON ON Cooling Operation Lowest Temp. 54° F (12. 2° C) 56° F (13. 3° C) 58° F (14. 4° C) 60° F (15. 5° C) 62° F (16. 6° C) 64° F (17. 7° C) 66° F (18. 9° C) 68° F (20. 0° C) #7 OFF ON OFF ON Highest Temp. 86° F (30. 0° C) 86° F (30. 0° C) 86° F (30. 0° C) 86° F (30. 0° C) 86° F (30. 0° C) 86° F (30. 0° C) 86° F (30. 0° C) 86° F (30. 0° C) Heating Operation Lowest Temp. 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 with the compressor or with the heater. · FRONT DESK CONTROL When the pair wire is connected to the connector LOand LI, the unit can be turned ON or OFF with a switch located at the Front Desk Control panel. When the front desk switch is 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. Wire # AWG #22 #20 #18 #16 Maximum Length 600ft(180m) 900ft(270m) 1500ft(450m) 2000ft(610m) Note:The following figures show wiring schematics for heat pump and straight cool units with electric heat, respectively. Wiring Schematic for Remote Heat Pump LO LI GL GH O W Y R C Front Desk Switch · 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 must set it to the 24 Volt AC. See the installation Instruction in this manual for the Remote Wall Thermostat. 24 Volt-N 24 Volt-L Compressor Heater Reversing Valve High Fan Low Fan Wiring Schematic for Straight Cool Unit. LO LI GL GH O W Y R C (Molex Housing Spec 396-09V) Owner's Manual 19 Control Locations Disassembly Instructions - Before the following disassembly, POWER SWITCH is set to OFF and disconnected the power cord. 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. 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. · This Room Air Conditioner (PTAC) discharges air from the top of the unit through reversible, 2position discharge grille louvers. [. . . ] Replacement part(s) will meet intended fit and function of the original part(s). Replacement parts are warranted for the unexpired portion of the original warranty period. This warranty is good only to the original purchaser of the product and effective only when used in the United States. WARRANTY PERIOD: For The Period Of: One Year From the date of the original purchase Five Years From the date of the original purchase Five Years From the date of the original purchase LGE Will Replace: Any part of LGE Packaged Terminal which fails due to a defect in materials or workmanship. During this full one-year warranty, LGE will also provide, free of charge, all labor and on-site service to replace the defective part. [. . . ]