A122HR - Air conditioner LG - Free user manual and instructions
Find the device manual for free A122HR LG in PDF.
Pick your language and provide your email: we'll send you a specifically translated version.
| Product Type | Window Air Conditioner |
| Cooling Capacity | 12,000 BTU / 3.5 kW |
| Heating Capacity | 11,500 BTU / 3.4 kW (Heat Pump) |
| Coverage Area | Up to 550 sq ft (51 m²) |
| Energy Efficiency Ratio (EER) | 10.9 (Cooling) |
| Power Supply | 115V / 60Hz / 12.5A |
| Plug Type | 3-prong grounded (NEMA 5-15P) |
| Refrigerant Type | R410A (pre-charged) |
| Modes | Cool, Heat, Fan, Auto, Dry |
| Fan Speeds | 3 speeds (Low, Mid, High) |
| Thermostat | Digital, range 60-86°F (16-30°C) |
| Air Filter | Washable, reusable with antimicrobial coating |
| Remote Control | Yes, with batteries included |
| Timer Function | 24-hour on/off programmable timer |
| Airflow Direction | Adjustable horizontal and vertical louvers (remote-controllable) |
| Noise Level | < 55 dB on high speed |
| Dimensions (W x H x D) | 19.5 x 15.5 x 22.8 in (495 x 394 x 580 mm) |
| Window Chassis Width | Min. 25 in (635 mm) to max. 39 in (990 mm) |
| Weight (Net) | 78 lb (35.4 kg) |
| Installation | Double-hung window with expandable curtains and EZ mount bracket |
| Energy Star | Certified model (verified typical 2019) |
| Warranty | 1 year parts and labor; 5 years sealed system |
| Additional Features | Auto restart after power outage; Dehumidify function (1.5 L/h) |
Frequently Asked Questions - A122HR LG
How do I clean the air filter on the LG A122HR?
Turn off the unit and unplug it. Slide out the filter tray located behind the front grille. Rinse the filter under lukewarm running water, shake off excess water, and allow it to air dry completely before reinstalling. Do not use a dishwasher or harsh chemicals.
What window size is required for installation?
The LG A122HR is designed for double-hung windows with a minimum opening width of 25 inches (635 mm) and a maximum of 39 inches (990 mm). The included expandable side curtains and support brackets provide a secure fit.
Does the remote control require batteries, and how do I replace them?
Yes, the remote control uses two AAA batteries (not included). Open the battery compartment on the back of the remote, insert new batteries matching the polarity markings, and close the compartment. Replacing the batteries does not reset any stored settings.
Why is my air conditioner not cooling enough?
Common causes include a dirty air filter, blocked airflow, incorrect mode or temperature settings, or an undersized unit for the room. First, clean the filter and ensure the louvers are open. Check that the set temperature is below the room temperature and that the unit is in Cool mode. Also verify that the window curtains are not obstructing the airflow.
Can I use this model as a heat pump during winter?
Yes, the A122HR includes a heat pump function providing heating capacity. However, it is designed for supplemental heating and should not be used as a primary heating source in freezing outdoor temperatures. For heat operation, set the mode to Heat and adjust the thermostat to your desired temperature.
How often should I service the unit professionally?
It is recommended to have the unit inspected by a qualified technician every 1-2 years. This includes checking refrigerant levels, electrical connections, and cleaning the evaporator and condenser coils. Regular cleaning of the filter (every month during heavy use) is essential for performance.
What does the 'Auto Restart' feature do?
The Auto Restart feature automatically restores the previous settings (mode, fan speed, and set temperature) when power returns after an outage. This prevents the need to manually reconfigure the unit after a power interruption.
Is the LG A122HR Energy Star certified?
Yes, this model is Energy Star certified in most configurations. Meeting ENERGY STAR guidelines ensures it saves energy compared to non-certified models while still providing powerful cooling and heating. Actual savings depend on usage and local climate.
How do I use the timer function?
Press the Timer button on the remote or control panel. The display will show 'TIMER ON' for the turn-on time. Set the desired time using the +/- buttons, then press Timer again to program the turn-off time. The unit will store both settings and activate them automatically.
Can I install the A122HR without a window bracket?
The supplied EZ mount bracket is highly recommended for safety and stability. While the unit can be placed on a windowsill with the frame securing screws, the bracket ensures proper weight distribution and prevents accidental dislodging. Always follow the installation guide for your window type.
User questions about A122HR LG
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
No questions yet. Be the first to ask one.
Download the instructions for your Air conditioner in PDF format for free! Find your manual A122HR - LG and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. A122HR by LG.
USER MANUAL A122HR LG
Manual assistant
Powered by Anthropic
Waiting for your message
Product information
Brand : LG
Model : A122HR
Category : Air conditioner