LG 42,000 BTU 21.5 SEER2 3 Zone Wall Mount Mini Split Heat Pump System R32 | 230V 18 + 9 + 9
The LG Multi F 18 + 9 + 9 configuration is a high performance multi zone solution designed to provide tailored climate control for approximately 1,100–1,800 sq ft. This setup is ideally suited for homes featuring one expansive common area, such as a vaulted great room, paired with two medium sized bedrooms or home offices. The primary benefit of this system lies in its "over engineered" 42,000 BTU outdoor chassis; by providing more raw capacity than the indoor heads require at peak, it ensures consistent, high velocity heating and cooling even when outdoor temperatures reach record breaking extremes.
Key Features
- Covers up to 1,800 sq ft (Ideal for one large master zone and two secondary rooms)
- High efficiency 21.5 SEER2 rating
- Built in Wi-Fi Compatibility
- Inverter Variable Speed Compressor for precise temperature maintenance and lower vibration
- Gold Fin™ Anti Corrosion Coating for enhanced outdoor unit durability and protection
Feature Highlights
Efficiency (SEER2)
Boasting a 21.5 SEER2 rating, this system is engineered to maximize every watt of electricity, significantly lowering seasonal energy costs. The advanced inverter technology allows the compressor to modulate its speed in real time, matching the thermal demand of each room exactly rather than cycling on and off like traditional, less efficient HVAC systems.
Quiet Operation
LG's indoor wall mounted units utilize a unique skew fan and Brushless DC (BLDC) motor technology to minimize air turbulence and mechanical noise. Operating at sound levels as low as 19 dB, this system provides a tranquil environment that is essential for bedrooms, nurseries, or home offices where focus and rest are priorities.
Right Sized Power
The 18 + 9 + 9 layout provides a strategic power split for modern residential floor plans. The 18,000 BTU indoor unit offers the high volume airflow necessary for large, open concept spaces, while the two 9,000 BTU units offer dedicated, efficient conditioning for smaller zones, ensuring no room is underserved during peak summer heat or winter freezes.
What’s Included
- Outdoor Condenser — 42,000 BTU / 21.5 SEER2
- (1) 18,000 BTU Indoor Air Handler — High capacity coverage
- (2) 9,000 BTU Indoor Air Handlers — Target room coverage
- (3) Wireless Remote Controls for independent zone management
- Installation and Operations Manual
Recommended Accessories
- Refrigerant Line Sets (1 set of 1/4" x 1/2" and 2 sets of 1/4" x 3/8" required)
- Heavy Duty Wall Bracket or Ground Condenser Pad
- Drain Hose and Decorative Line Set Covers (Slimduct)
Warranty
LG products include a 10-year warranty with the requirement that installation is completed by a licensed contractor and that the product is registered at https://lg-dfs-warranty.com/ within 60 days of installation.
42k BTU Multi Zone Condenser w/ Cold Climate Technology42,000 BTU LG LGRED° Multi Zone Mini Split Heat Pump Condenser - R32 | 230V
This outdoor mini split condenser provides efficient heating and cooling performance for single-zone applications. When paired with a compatible indoor air handler, it supports comfort for spaces up to 1500-1900sq ft.
Key Features
- High-efficiency inverter-driven performance
- 42,000 BTU capacity for single-zone systems
- Compact outdoor design for flexible placement
- Engineered for quiet outdoor operation
- Pairs with compatible Carrier Infinity air handlers
Warranty
LG products include a 10-year warranty with the requirement that installation is completed by a licensed contractor and that the product is registered at https://lg-dfs-warranty.com/ within 60 days of installation.
18k BTU High Efficiency Wall MountThe 18,000 BTU LG High Efficiency Multi/Single Zone Wall Mount Mini Split Air Handler is designed to condition rooms up to approximately 800 square feet with quiet, energy‑efficient performance. Its compact, high‑efficiency indoor unit delivers strong cooling and heating output while helping to reduce energy use in larger bedrooms, open‑concept areas, and medium‑sized living spaces.
Key Features
- 18,000 BTU Capacity: Provides robust cooling and heating output for Multi/Single‑Zone applications in medium‑to‑large rooms.
- High‑Efficiency Operation: Engineered for improved efficiency using R32 refrigerant, supporting lower energy consumption while maintaining consistent comfort.
- Quiet Design: Capable of very low sound levels in low‑speed operation, making it suitable for spaces where quiet performance matters.
- 4‑Way Auto Swing (Left‑Right / Up‑Down): Helps distribute conditioned air more evenly across the room for improved coverage and comfort balance.
- Jet Cool / Jet Heat Mode: Increases fan speed and adjusts the setpoint temporarily to deliver faster cooling or heating for quicker room comfort.
- Auto Operation: Continuously adjusts fan speed and refrigerant flow based on indoor conditions to maintain stable, balanced performance.
- Self‑Cleaning Indoor Coil: Automatically flushes moisture and debris from the coil to help maintain airflow and reduce odors over time.
- Dual‑Stage Filtration: A washable pre‑filter plus a 3M Micro Dust filter helps capture dust and fine airborne particles for improved indoor air quality.
- Sleep Mode and 24‑Hour Timer: Supports sleep mode and 24‑hour on/off timing for easier comfort scheduling and energy management.
- Auto Restart and Group Control: Auto restart resumes operation after a power interruption, while group control supports coordinated operation when multiple units are installed.
- Variable‑Speed Inverter Fan: Operates at varying speeds to match load conditions, helping maintain steady temperatures and reduce energy use.
- Wi‑Fi Ready via SmartThinQ: Compatible with built‑in Wi‑Fi for remote control and monitoring through a supported app when paired with the proper outdoor configuration.
- R32 Leak Detection Sensor: Monitors refrigerant conditions and helps support safer, code‑compliant installation with an R32‑specific leak‑detection system.
Compatibility
This indoor air handler is compatible with LG single and multi-zone outdoor systems designed for R32 refrigerant and matching high‑efficiency indoor‑outdoor pairings. It must be installed with a compatible outdoor unit to operate properly.
9k BTU High Efficiency Wall MountThe 9,000 BTU LG High Efficiency Multi/Single Zone Wall Mount Mini Split Air Handler is designed to condition rooms up to approximately 350 square feet with quiet, energy-efficient performance. Its compact, high-efficiency design makes it ideal for bedrooms, offices, and small living areas where powerful yet space-conscious comfort is needed.
Key Features
- 9,000 BTU Capacity: Provides reliable cooling and heating output for Multi/Single-Zone applications in smaller rooms.
- High-Efficiency Operation: Engineered for improved efficiency using R32 refrigerant, helping reduce energy use while maintaining strong comfort performance.
- Quiet Performance: Designed for low-noise operation, making it suitable for sound-sensitive spaces such as bedrooms and home offices.
- Jet Temperature Control: Delivers faster cooling or heating to help the room reach the desired temperature more quickly.
- 4-Way Air Swing: Helps distribute conditioned air more evenly across the room for improved comfort balance.
- Self-Cleaning Indoor Coil: The self-cleaning coil design helps reduce moisture and debris buildup, supporting cleaner airflow and easier maintenance.
- 3M Micro Dust Filter: Captures fine dust and airborne particles to help improve indoor air quality.
- Sleep Mode and 24-Hour Timer: Supports sleep mode and 24-hour on/off timing for simpler daily operation and better comfort control.
- Built-In Wi-Fi Ready: Compatible with Wi-Fi-enabled controls for remote monitoring and adjustments when paired with a supported system configuration.
- R32 Leak Detection Sensor: Includes an R32-specific leak-detection sensor to help support safer refrigerant monitoring on properly wired installations.
Compatibility
This indoor air handler is compatible with LG single and multi-zone outdoor systems designed for R32 refrigerant and matching high-efficiency indoor-outdoor pairings. It must be installed with a compatible outdoor unit to operate properly.
LG Distribution Box 3 Ports For 3 Zone SystemsThis 3-port branch distribution box is designed for select LG Multi F MAX and Multi F MAX with LGRED outdoor units in 48,000 BTU systems and above. It helps distribute refrigerant from the outdoor condenser to compatible indoor units in multi-zone applications, allowing for more flexible and efficient system design. With support for connected indoor unit capacities from 7,000 to 24,000 BTU/h and a maximum combined nominal capacity of 72,000 BTU/h, it is built for reliable multi-zone performance in residential and light commercial installations. Designed for indoor installation, it is compatible with A2L systems.
15 feet - 1/4" and 1/2" Line Set & Control Wire Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 15-foot refrigerant line set with 1/4" liquid line and 1/2" suction line featuring durable flared ends for secure connections, along with a matching 15-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 15 ft. insulated refrigerant line set
- 15 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 1/2" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
15 feet - 1/4" and 3/8" Line Set & Control WireComplete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 15-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 15-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 15 ft. insulated refrigerant line set
- 15 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 3/8" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
25 feet - 1/4" and 1/2" Line Set & Control Wire Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 25-foot refrigerant line set with 1/4" liquid line and 1/2" suction line featuring durable flared ends for secure connections, along with a matching 15-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 25 ft. insulated refrigerant line set
- 25 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 1/2" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
25 feet - 1/4" and 3/8" Line Set & Control WireComplete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 25-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 25-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 25 ft. insulated refrigerant line set
- 25 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 3/8" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
30 feet - 1/4" and 1/2" Line Set & Control Wire Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 30-foot refrigerant line set with 1/4" liquid line and 1/2" suction line featuring durable flared ends for secure connections, along with a matching 30-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 30 ft. insulated refrigerant line set
- 30 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 1/2" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
30 feet - 1/4" and 3/8" Line Set & Control WireComplete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 30-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 30-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 30 ft. insulated refrigerant line set
- 30 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 3/8" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
35 feet - 1/4" and 1/2" Line Set & Control Wire Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 35-foot refrigerant line set with 1/4" liquid line and 1/2" suction line featuring durable flared ends for secure connections, along with a matching 35-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 35 ft. insulated refrigerant line set
- 35 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 1/2" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
50 feet - 1/4" and 1/2" Line Set & Control Wire Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 50-foot refrigerant line set with 1/4" liquid line and 1/2" suction line featuring durable flared ends for secure connections, along with a matching 50-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 50 ft. insulated refrigerant line set
- 50 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 1/2" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
50 feet - 1/4" and 3/8" Line Set & Control WireComplete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 50-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 50-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 50 ft. insulated refrigerant line set
- 50 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 3/8" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
