User manual LG LP120HEM

[. . . ] 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. [. . . ] The temperature can be set within a range of 54° F to 86° F by increments of 2° F. · The setting appears in the display. - COOL · Fan runs continually for normal cooling operation. - ENERGY SAVER · The fan stops when the compressor stops cooling. Approximately every 3 minutes the fan will turn on and the unit will check the room air temperature to determine if cooling is needed. - FAN · Fan operation without heating or cooling. - HEAT · Fan runs continually for normal heating operation. TIMER - SHUT-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. 14 Room Air Conditioner Control Locations Self-Diagnosis ENGLISH FUNCTION: If the unit has a malfunction, a green OPERATIONLED located on the Display PCB used by the unit to indicate the errors. USE: If the customer has to register a complaint to the service center, he can be very clear about registering the complaint that what is happening & by referring the user's manual the customer can clearly define the problem. So that the engineer should go fully prepared with the prescribled tools to be used regarding that problem. 54°F (12. 2°C) 86°F (30. 0°C) 54°F (12. 2°C) 84°F (28. 9°C) 54°F (12. 2°C) 82°F (27. 8°C) 54°F (12. 2°C) 80°F (26. 7°C) 54°F (12. 2°C) 78°F (25. 5°C) 54°F (12. 2°C) 76°F (24. 4°C) 54°F (12. 2°C) 74°F (23. 3°C) 54°F (12. 2°C) 72°F (22. 2°C) Owner's Manual 17 Control Locations · REMOTE/LOCAL CONTROL When remote/local switch #1 is on, it allow the unit to operate by the 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 cycle 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 with the compressor or with the heater. · FRONT DESK CONTROL When the pair wire is connected to the connector FD2 and FD1, 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 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. Wire # AWG #22 #20 #18 #16 Motion Sensor Motion Sensor Door Switch Door Switch Front Desk Control Front Desk Control Maximum Length 600 ft (180 m) 900 ft (270 m) 1500 ft (450 m) 2000 ft (610 m) Note: The following figures show wiring schematics for heat pump and straight cool units with electric heat, respectively. Wiring Schematic for Remote Heat Pump FD2 FD1 DR2 DR1 MS2 MS1 (Molex Housing Spec 396-06V) · 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 24 Volt AC. See the installation Instruction in this manual for the Remote Wall Thermostat. Wiring Schematic for Straight Cool Unit. 24 Volt-N 24 Volt-L Compressor Heater Reversing Valve High Fan Low Fan GL GH O W Y R C (Molex Housing Spec 396-07V) 18 Room Air Conditioner Control Locations · 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. ENGLISH · ENERGY SAVER The energy saver switch #2 is on. [. . . ] · If knocking sounds continue when running or loose, replace the motor. If the motor hums or noise appears to be internal while running, replace motor. If not within limits, call an electrician. · Check the wire connections, if loose, repair or replace the terminal. [. . . ]