
LG KNUQB121A Low Wall Console Indoor Unit with 12000 BTU Cooling Capacity, 13650 BTU Heating Capacity and Remote Control in White



LG KNUQB121A Features




LG KNUQB121A Dimensions
Depth | 8 13/48" |
Width | 27 9/16" |
Height | 23 5/8" |
LG KNUQB121A Overview
LG's devotion to providing efficient ductless solutions can be seen across the Multi F line of indoor units. Their line of low wall console mini split units is perfect for locations with space constraints. Quiet operations and a efficient design make the low wall console a smart addition for all types of spaces from bedrooms to attics to garages. With a variety of operating modes and helpful functions, this well-rounded mini split indoor unit is an easy choice for any system. This product requires a compatible outdoor condenser for functionality.
Enhanced Connectivity
LG's new R-32 mini split units require a 5-conductor cable (Not Included) instead of the standard 4-conductor, improving communication reliability and enabling a new leak detection feature.
Installation Flexibility
Able to be mounted to the floor or wall, LG's low wall console is a perfect solution to cooling and heating rooms with limited space.
Quiet Design
The low wall console can operate at volumes as low as 27 dB. LG utilizes a cross flow fan design that reduces noise levels by limiting the surface pressure of air flow as well as a brushless motor, which ensures minimal electrical and mechanical noise.
Jet Temperature Control
Quickly get your zone comfortable with the Jet Heat and Jet Cool modes. With the press of a button, your system will temporarily adjust the set point and fan speed to provide rapid heating or cooling.
Automated Operation
Auto operation mode continually compares your zone's current and desired temperatures and uses that data to intelligently adjust the unit's fan speed and refrigerant flow to provide optimal comfort.
Sleep Mode
With the Sleep Mode and Timer functions, you can set this indoor unit to save energy at night. Sleep Mode will incrementally adjust temperature for an hour before the Timer function automatically deactivates the unit.
Improved Air Quality
LG's low wall consoles feature washable anti-bacterial filters to keep your air clean and free of microscopic irritants.
Hot-Start
When the Hot-Start function is enabled, the unit's fan will not engage until the outdoor condenser has had the opportunity to warm the indoor coil. This prevents the unit from blowing cold air during heating operations.
*Note: Outdoor Unit Required to Operate
Matching Products
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Why Buy LG KNUQB121A Low Wall Console Indoor Unit
- Space-saving design: This low-wall or floor-mounted console is perfect for rooms with limited wall space or unconventional layouts, such as attics, sunrooms, or garages.
- Quiet performance: Operating as quietly as 27 dB, the unit is ideal for noise-sensitive areas like bedrooms, home offices, and study spaces.
- Efficient heating and cooling: Featuring inverter technology, the unit delivers reliable year-round comfort with both heating and cooling capabilities. "Jet Cool" and "Jet Heat" modes provide rapid temperature adjustment, while the "Hot-Start" function prevents cold drafts during heat-up.
- Improved air quality: Equipped with a washable anti-fungal filter, the unit helps trap dust and airborne particles, contributing to a cleaner indoor environment.
- Multi-zone compatible: As part of LG’s Multi F system, this indoor unit can be paired with other units and a single outdoor condenser to support multi-room climate control.
- Advanced control features: Comes with a wireless remote and is compatible with optional WiFi control via the LG ThinQ app. Additional modes like "Sleep Mode" and "Auto Operation" optimize energy use and comfort automatically.
Frequently Asked Questions
Q: What is the KNUQB121A unit used for?
A: The KNUQB121A is an indoor unit designed for use in a ductless mini-split heat pump system. It can be configured for either single-zone or multi-zone applications.
Q: What type of refrigerant is compatible with the KNUQB121A?
A: This unit is specifically designed to operate with R-32 refrigerant.
Q: What accessories are required for installing the KNUQB121A?
A: To complete the installation, the following field-supplied items are required:
- Line set: Double-insulated tubing for refrigerant transfer
- Drain tubing: For proper condensate removal
- Disconnect box & electrical whip kit: For power connection to the fuse box
- Connecting wire: 14 AWG, 5-conductor cable (required for LG R-32 units)
- Outdoor condenser mounting: An outdoor pad or wall bracket is recommended to elevate the unit
Q: What type of installation does the KNUQB121A require?
A: Installation must comply with local and national codes, and should be performed by a qualified professional. Proper installation is also typically required to validate the warranty.
Q: Is the KNUQB121A covered under warranty?
A: Yes, LG typically offers a 10-year warranty on this unit. To qualify, the unit must be installed by a licensed contractor and registered within 60 days of installation. Always confirm specific warranty terms with your retailer or LG’s website.
LG KNUQB121A Dimensions
Depth | 8 13/48" |
Width | 27 9/16" |
Height | 23 5/8" |
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