LG 3.5 Ton 16 SEER2 Heat Pump Split System - R32 Inverter - Multi-Positional

LG heat pump split system for efficient year-round comfort

LG's 3.5 ton heat pump system is designed for year-round heating and cooling. It features inverter technology for superior performance and a multi-positional air handler for flexible installation in various orientations.

Model Numbers: KUSXE421A (Condenser) / KNSLE422A (Air Handler)

Price: $4,800.00 (Was $5,760.00)

Key Features

• 16 SEER2 High Efficiency Performance – Reduces energy consumption compared to older 10–14 SEER systems.
• Inverter-Driven Compressor – Adjusts output in real time for more consistent temperatures and fewer hot/cold swings.
• Cold Temperature Heating – Designed to maintain heating performance down to 4°F temperatures.
• Matched Indoor Air Handler – Engineered for proper airflow, balanced performance, and simplified installation.
• All-Electric Heating & Cooling – Ideal for homeowners replacing aging AC and furnace systems with a modern heat pump solution.
• Controller Included – A remote controller is included with the air handler.
• Pre-charged with R32 refrigerant

System Overview

LG's KUSXE421A / KNSLE422A heat pump system has an output of 3.5 tons, generally enough to heat and cool a medium-size home in ideal climates. While this system is capable of cooling in outdoor temperatures as high as 118°F, it will only heat down to around 4°F. A supplemental heat kit is strongly recommended for temperatures below 4°F.

Inverter Technology

LG's heat pump condensers are built with a twin rotary variable speed BLDC (Brushless Digitally Controlled) inverter compressor. This innovative technology eliminates the harsh "on-off" cycling seen on standard systems. The heat pump modulates its own speed to match the real-time thermal load of your home, maintaining steady temperatures and reducing wear on mechanical components.

Condenser Specifications – KUSXE421A

Air Handler Specifications – KNSLE422A

Warranty

• Condenser: 5-year parts & 5-year compressor warranty from date of purchase. Register within 60 days of residential installation to upgrade to 10-year parts and 10-year compressor warranty.
• Air Handler: 5-year parts warranty from date of purchase. Register within 60 days to upgrade to 10-year parts warranty.

Documentation & Datasheets

• KUSXE421A / KNSLE422A Submittal Sheet (PDF)
• KUSXE / KNSLE Installation Manual (PDF)
• KUSXE / KNSLE Engineering Manual (PDF)
• KNSLE422A Air Handler Submittal (PDF)
• KNSLE Installation Manual (PDF)
• KNSLE Engineering Manual (PDF)
• LG R32 Air Handler and Coil System Brochure (PDF)
• LG R32 Residential System Warranty Card (PDF)

⚠️ PROPOSITION 65 WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects or other reproductive harm.

High-efficiency performance for every season

The LG heat pump split system is built to deliver dependable comfort in both hot and cold weather while keeping energy use under control. With a 16 SEER2 efficiency rating, this 3.5-ton unit is designed to provide strong cooling and consistent heating for medium to large spaces. The inverter-driven compressor helps the system adjust output based on demand, which supports smoother operation and better temperature control. This smart performance can help reduce energy waste, improve indoor comfort, and maintain a more stable environment throughout the year.

R32 inverter technology for modern climate control

Using advanced R32 refrigerant, this system offers a more modern and efficient approach to HVAC performance. R32 is known for its lower environmental impact compared to older refrigerants, making it a smart choice for buyers looking to upgrade their comfort system responsibly. The inverter design works hand in hand with the refrigerant to improve efficiency, reduce cycling, and support quieter operation. For homeowners and contractors seeking a reliable solution, the LG heat pump split system combines advanced technology with practical performance that fits today’s comfort needs.

Multi-positional installation for flexible setup

One of the biggest advantages of this system is its multi-positional indoor unit, which gives installers more flexibility during setup. Whether the project calls for an upflow, downflow, or horizontal configuration, the unit can adapt to different space requirements with less hassle. This makes it a strong option for new installations and replacement projects alike. The flexible design can save time during installation while helping the system fit more naturally into a wide range of home layouts. It is a practical choice for efficiency, convenience, and long-term comfort.

Reliable comfort with a clean, modern design

Beyond performance, this LG system is designed to support dependable everyday comfort with a simple and professional look. Its split system format helps separate indoor and outdoor components for better operation and easier service access. The combination of efficient heating, cooling, and inverter control makes it a solid solution for users who want steady indoor temperatures without unnecessary energy use. If you are looking for a high-quality HVAC upgrade that balances advanced features, flexible installation, and strong seasonal performance, the LG heat pump split system is a smart investment for lasting comfort.